WO2018014790A1 - 一种手持全自动压力校验仪 - Google Patents

一种手持全自动压力校验仪 Download PDF

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Publication number
WO2018014790A1
WO2018014790A1 PCT/CN2017/092962 CN2017092962W WO2018014790A1 WO 2018014790 A1 WO2018014790 A1 WO 2018014790A1 CN 2017092962 W CN2017092962 W CN 2017092962W WO 2018014790 A1 WO2018014790 A1 WO 2018014790A1
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WO
WIPO (PCT)
Prior art keywords
pressure
module
valve
interface
cylinder
Prior art date
Application number
PCT/CN2017/092962
Other languages
English (en)
French (fr)
Inventor
黄智勇
刘忻
董峰山
田喜蕾
李蕊
季伟
李立成
王刚
高洪军
万春辉
Original Assignee
北京康斯特仪表科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201610582819.2A external-priority patent/CN107642478A/zh
Priority claimed from CN201610587080.4A external-priority patent/CN107643146A/zh
Application filed by 北京康斯特仪表科技股份有限公司 filed Critical 北京康斯特仪表科技股份有限公司
Priority to EP17830424.2A priority Critical patent/EP3495795B1/en
Priority to US16/329,096 priority patent/US10976211B2/en
Publication of WO2018014790A1 publication Critical patent/WO2018014790A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
    • G01L27/002—Calibrating, i.e. establishing true relation between transducer output value and value to be measured, zeroing, linearising or span error determination
    • G01L27/005—Apparatus for calibrating pressure sensors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D9/00—Recording measured values
    • G01D9/005—Solid-state data loggers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure

Definitions

  • the invention belongs to the field of pressure instrument metering and calibration, and relates to a small hand-held automatic pressure calibrator capable of automatically compressing air to generate pressure gas, automatically completing gas pressure control and modular assembly, which can be replaced by replacing a standard pressure module.
  • Pressure instruments used in industrial production, pressure measurement and other fields need to be periodically checked to ensure the accuracy of the pressure gauge pressure detection and to ensure that the pressure equipment is used within a safe range.
  • pressure instruments in the production process have gradually shifted to digital and electrical.
  • many pressure gauges are usually equipped with a pressure check interface and a switching valve in the pressure line so that the service pressure can be completed on site without disassembling the pressure gauge. Calibration of the meter.
  • Existing pressure calibrators typically include a pneumatic component that includes a source of pressure that provides pressurized gas.
  • the calibration process of the pressure gauge is completed at the service site of the pressure gauge.
  • the pressure generating device compresses the medium to provide a continuously varying pressure for the calibration process to meet the requirements of use, and the generated pressure is controlled to stabilize a certain need.
  • the specific pressure value; the pressure generating device, the pressure control unit and the standard pressure gauge, and the on-site pressure gauge are connected to form a test system through the connection device, and the on-site pressure gauge is verified by the test system; the standard pressure gauge is manually written and recorded.
  • the contrast pressure value of the tested pressure gauge is calculated, and the comparative pressure value is calculated to determine the error range of the pressure gauge under different pressure values, and finally the qualified condition is determined, and the inspection report is generated and sent to the user.
  • such a field calibration process requires a plurality of devices or instruments such as a pressure generating device, a pressure medium connecting transmission device, and a pressure data processing device to perform the calibration work of the primary pressure gauge.
  • devices or instruments such as a pressure generating device, a pressure medium connecting transmission device, and a pressure data processing device to perform the calibration work of the primary pressure gauge.
  • the service location of pressure gauges is complicated, even in high-altitude, space-constrained locations or highly polluting petroleum or chemical industries. The combination of these multiple instruments is not available.
  • it is necessary to carry out a compact design of the verification device even in a portable or even hand-held manner.
  • the object of the present invention is to solve the above problems and to provide a pressure generation, pressure control, Handheld automatic pressure calibrator for all functions of pressure gauge connection, pressure calibration process recording, result calculation and report output.
  • a hand-held fully automatic pressure calibrator comprising a housing and a pneumatic component and a circuit component mounted in the housing, the pneumatic component comprising a pressure source capable of providing a pressurized gas, the components of the pneumatic component
  • the components of the circuit component are integrally assembled in the housing in a modular manner, and the overall shape of the calibrator is suitable for hand-held.
  • the components of the air passage component include: a micro intelligent gas distribution module (200) combined with a micro air pump (100), which provides pressurized gas and vacuum for the pressure calibrator, wherein the micro air pump (100) Used as the pressure source; a miniature intelligent pressure control module (300) that controls and regulates pressurized gas and vacuum from the micro intelligent gas distribution module (200); a standard pressure module (500), which is a pressure calibrator Providing a reference pressure; and a miniature intelligent pressure interface module (400) connecting the miniature intelligent pressure control module (300) and the standard pressure module (500);
  • the positive pressure connector (240) and the vacuum connector (245) of the micro intelligent gas distribution module (200) are inserted into the pressure gas interface (72) and the vacuum interface (80) corresponding to the micro intelligent pressure control module (300). And connected, the control module pressure connector (302) of the miniature intelligent pressure control module (300) communicates with the pneumatic input interface (415) of the miniature intelligent pressure interface module (400), the pneumatic interface of the standard pressure module (500) and the micro intelligent pressure The pneumatic interface of the interface module (400) is docked.
  • the circuit component includes: an interface circuit board (600) for connecting each circuit of the air path component, a main control circuit board (700) for operation control of the whole machine, and a touch display screen for inputting and outputting. (800) and an external electrical measurement jack (22) and an external electrical interface mounting hole (015), the circuit of the circuit component and the rechargeable battery (900) are electrically connected to the main control circuit board (700).
  • the housing comprises an upper casing (010), a lower casing (030) and a lower cover (040); the upper casing (010) and the lower casing (030) are fastened to form a calibrator body suitable for hand-held, the interior of the body
  • the space is equipped with the micro intelligent pressure interface module (400), standard pressure module (500), main control circuit board (700), interface circuit board (600) and touch display screen (800); lower cover (040) installation
  • the inner space formed by the lower cover (040) and the lower case (030) is equipped with a micro intelligent gas distribution module (200) and a micro intelligent pressure control module (300); a rechargeable battery ( 900) A lower portion fitted to the outside of the lower case (030).
  • the upper casing (010) is a wedge-shaped cover that is upper and lower, and the upper end surface is a sloped surface.
  • the inclined surface is provided with a through hole (011) for assembling a pressure joint (403) on the micro intelligent pressure interface module (400). And a pressure reference joint (414) and exposed to the casing;
  • the upper casing (010) is provided with an outer surface for receiving Touch the square through hole (013) of the display (800); there are three circular external measuring jacks (012) above the square through hole (013), and a round hole for mounting the power button (014); (010) external electrical interface mounting holes (015) are arranged on the left and right sides;
  • the lower case (030) is a wedge-shaped support with a large upper and lower portion, and the upper end surface thereof is a sloped surface, and the through hole has a through hole 2 (031) for mounting the standard pressure module mount 406 of the micro intelligent pressure interface module 400);
  • a groove (018) is provided at a joint between the peripheral edge end of the upper shell (010) and the lower shell (030), and a convex ridge (036) is provided at a joint of the peripheral edge end of the lower shell (030) and the upper shell (010), and the convex portion is provided.
  • ⁇ (036) is in close contact with the groove (018).
  • the invention also provides a miniature intelligent gas distribution module for use in the hand-held automatic pressure calibrator.
  • the micro intelligent gas distribution module (200) comprises a micro air pump (100) and a gas source end block (280), wherein the gas source end block (280) is connected to the micro air pump (100) and connected to the gas path, and the micro air pump (100) There is a primary suction line (114) for inhaling outside air and a secondary exhaust line (122) for outputting pressurized gas, and the gas source end block (280) is provided with a positive pressure gas volume (234) and a vacuum gas.
  • Capacitor (236), two gas volumes and two tubes (114, 122) of the micro air pump (100) are connected and controlled by a micro solenoid valve, namely a V1 valve, a V2 valve and a V3 valve, disposed in the air source end block (280). .
  • the air source end block (280) includes a valve island (230), and the valve island is internally separated by two large cavities for use as a positive pressure gas volume (234) and a vacuum gas volume (236), and the top of the cavity is topped.
  • the cover (246) is sealed; the valve island is internally partitioned with three smaller cavities respectively for placing the V1 valve, the V2 valve and the V3 valve, between the positive pressure air volume (234), the vacuum air volume (236) and the three solenoid valves. Connected by piping.
  • the invention also provides a cylinder-oriented micro-charged electric air pump, which can be used as a micro air pump (100) in a hand-held automatic pressure calibrator, which comprises a pump body seat (108) and a motor seat connected with the pump body seat. (102) and a motor, an eccentric shaft (104) driven by the motor, a connecting rod (105) linked to the eccentric shaft, a first-stage cylinder (1081), a two-stage cylinder (106), and a first-stage cylinder Among the body and the second cylinder, a piston rod (110) that moves synchronously with the connecting rod and a plurality of one-way valves provided at the outer ends of the two cylinders.
  • the two ends of the pump body (108) form a first-stage cylinder (1081) and a two-stage cylinder support seat (1082), and the two-stage cylinder (106) is assembled on the two-stage cylinder support (1082)
  • the inside is coaxial with the first-stage cylinder (1081);
  • the volume of the secondary cylinder (106) is smaller than the volume of the primary cylinder (1081), and the primary exhaust of the primary cylinder (1081) (117) ) communicating with the secondary suction line (120) of the secondary cylinder (106);
  • a piston first end (1101) and a piston secondary end (1102) are disposed at both ends of the piston rod (110), the first end of the piston cooperates with the first stage cylinder (1081), and the secondary end of the piston extends into the second cylinder (106) ) Cooperate with the secondary cylinder.
  • the second cylinder (106) is a hollow cylinder, and the inner surface of the cylinder is provided with a first step surface (1062) perpendicular to the axial direction of the second cylinder (106), and the second combined seal (107) is assembled thereon.
  • First step surface (1062) Wherein the side of the pump body (108) abuts the second combination seal (107);
  • the first stepped surface (1062) causes an inner surface of the two-stage cylinder (106) to form a first-stage through hole (1061) and a second-stage through-hole (1066) that communicate with each other, a first-stage through-hole (
  • the diameter of 1061) is larger than the diameter of the second-stage through hole (1066), the inner surface of the first-stage through-hole (1061), the first stepped surface (1062), and the piston secondary end (1102) of the piston rod (110).
  • the surface together forms an annular groove in which a second combined seal (107) is placed; a joint between the pump body (108) and the secondary cylinder (106) is provided with a pair of corresponding projections (1083) ) for resisting the second combination seal (107).
  • the outer surface of the two-stage cylinder (106) is provided with at least a second step surface (1063), a sealing ring abuts against the second step surface (1063), and the side of the motor base (104) abuts the top Sealing ring; or,
  • the outer surface of the two-stage cylinder (106) is provided with two steps of a third stepped surface (1064) and a fourth stepped surface (1065), and the third stepped surface (1064) is spaced from the center of the two-stage cylinder (106)
  • the axial distance is smaller than the distance of the fourth step surface (1065) from the central axis of the two-stage cylinder (106), a sealing ring (128) abuts against the third step surface (1064), and the side of the motor base (104) abuts
  • the seal ring (128) and the fourth step surface (1065) are topped.
  • the end surface area of the primary end (1101) of the piston is larger than the end surface area of the secondary end (1102) of the piston, and the axial cross-sectional area of the corresponding primary cylinder (1081) is larger than the axial cross-section of the secondary cylinder (106). area.
  • the outer end of the first-stage cylinder (1081) is provided with a cylinder mat (112), a reverse-assembled first-stage suction check valve (115), a first-stage exhaust check valve (116), and an end cover ( 113), the first-stage suction check valve (115) and the first-stage exhaust check valve (116) communicate with the inner cavity of the first-stage cylinder (1081), and the first-stage suction pipe on the end cover (113) ( 114) connecting the outside air and communicating with the primary suction check valve (115), the primary exhaust line (117) on the end cover (113) is in communication with the primary exhaust check valve (116), And communicating with the secondary suction line (120) of the secondary cylinder (106) through a transition line (119);
  • the outer end of the two-stage cylinder (106) is provided with a secondary suction line (120) and a secondary exhaust line (122), and the second intake line (120) is installed with a second for controlling the intake air.
  • Stage suction check valve (121) the primary exhaust line (117) of the primary cylinder (1081) passes through a transition line (119) placed in the valve island (130) and the secondary suction list
  • the valve (121) is in communication with the secondary suction line (120); the secondary exhaust line (122) outlet is provided with a secondary exhaust check valve (123) for controlling the outlet.
  • the V3 valve disposed in the air source end block (280) is a two-position three-way solenoid valve, which includes a V3 valve first vent hole (2331), a V3 valve second vent hole (2332), and a V3 valve third pass.
  • Air hole (2333) wherein the third vent hole (2333) of the V3 valve is connected to the outside atmosphere, and the second vent hole (2332) of the V3 valve is in communication with the primary suction line (114) of the micro electric pump (100), the V3 valve
  • the first vent (2331) is in communication with the vacuum gas volume (236) through the gas flow line one (238);
  • the V1 valve disposed in the air source end block (280) is a two-position two-way solenoid valve, which includes a first vent hole of the V1 valve. (2311) and the V1 valve second vent (2312), wherein the V1 valve first vent (2311) communicates with the outside atmosphere, the V1 valve second vent (2312) and the micro air pump (100) secondary exhaust pipe Road (122) connected;
  • the V2 valve disposed in the air source end block (280) is a two-position two-way solenoid valve, including a V2 valve first vent hole (2321) and a V2 valve second vent hole (2322), wherein the V2 valve first vent hole ( 2321) is in communication with the secondary exhaust line (122) of the micro air pump (100), and the second vent hole (2322) of the V2 valve is in communication with the positive pressure air volume (234).
  • the outer surface of the valve island (230) is provided with a sealing cushion (241), the sealing cushion is provided with a first shaped through hole (2411), and the first shaped through hole (2411) passes through the third vent of the V3 valve (2333)
  • the first suction pipe (114) is connected to the first air suction pipe (114);
  • the outer cover of the sealing cushion is attached to the lower cover (040), and the lower cover (040) and the first irregular shaped through hole (2411) are respectively provided with a plurality of ventilation holes.
  • a suction through hole (042), a filter (041) is disposed in the first shaped through hole (2411);
  • the sealing cushion (41) is further provided with a second shaped through hole (2412), and the second shaped through hole (2412) communicates with the secondary exhaust line (122) through the first vent hole (2311) of the V1 valve; (040)
  • a discharge through hole (043) composed of a plurality of vent holes is provided at a position corresponding to the second shaped through hole (2412).
  • the invention also provides a miniature intelligent pressure control module for use in a hand-held automatic pressure calibrator.
  • the miniature intelligent pressure control module (300) includes a control valve island (61) and a pressure sensor (69) integrated into the control valve island, a vacuum sensor (67), a circuit board (63), and an intake control solenoid valve. (64), an exhaust control solenoid valve (66), a fourth solenoid valve (65), a pressure gas port (72), a vacuum port (80), and an air passage joint, wherein:
  • the control valve island is internally provided with a plurality of pipelines formed by pipeline holes; the pressure sensor (69) and the vacuum sensor (67) are electrically connected to the circuit board (63); the pressure gas interface (72) and the pressure sensor ( 69), an intake control solenoid valve (64) and an air passage joint are connected through the plurality of pipelines; the vacuum interface (80), a vacuum sensor (67), a fourth solenoid valve (65), and an exhaust control electromagnetic A valve (66) is coupled to the airway interface through the plurality of conduits.
  • the airway joint is formed by sequentially connecting a first joint (81), a joint (82) and a control module pressure joint (302), and the first joint is a hollow tubular structure connected to one end of the joint and connected The other end of the head is connected to the control module pressure connector (302) in a plug-in manner, and the first connector (81) and the control module pressure connector (302) are internally provided with a sealing ring.
  • the pressure sensor, the vacuum sensor, the circuit board are electrically connected to a total circuit interface
  • the intake control solenoid valve, the exhaust control solenoid valve and the fourth solenoid valve are electrically connected to the total circuit interface through a connection line
  • the general circuit interface is connected to an interface circuit board (600).
  • the intake control solenoid valve and the exhaust control solenoid valve are miniature high-precision airflow control valves, both of which are provided with a first port and a second port;
  • the fourth solenoid valve is a two-position three-way solenoid valve, and has a fourth a solenoid valve first vent hole (651), a fourth solenoid valve second vent hole (652), and a fourth solenoid valve third vent hole (653);
  • the fourth solenoid valve is in a power-off state, the fourth solenoid valve
  • the fourth solenoid valve second vent hole (652) and the fourth solenoid valve third vent hole (653) are in communication;
  • the fourth solenoid valve is in an energized state, the fourth solenoid valve first vent hole (651) and the fourth electromagnetic The valve second vent (652) is in communication, and the fourth solenoid valve second vent (652) and the fourth solenoid valve third vent (653) are disconnected.
  • the pressure gas interface (72) is fixed on one side of the control valve island (61), and one end is located on the surface of the control valve island, and the positive pressure connection head (240) of the micro intelligent gas distribution module (200) is inserted and sealed.
  • the other end of the pressurized gas interface (72) is located inside the control valve island, and is in communication with the first pressure line (73);
  • the pressure sensor (69) is provided with a first port and a second port, the first port and the first A pressure line (73) is in communication, and a second port is in communication with the second pressure line (74);
  • the intake control solenoid valve (64) is provided with a first port and a second port, the first port and the first port
  • the second pressure line (74) is in communication, the second port is in communication with the third pressure line (75); the third pressure line (75) is in communication with the fourth pressure line (76); the fourth pressure tube
  • the road (76) is also in communication with the second port of the exhaust control solenoid valve (66) and the first joint (
  • the vacuum interface (80) is fixed on one side of the control valve island (61), and one end is located on the surface of the control valve island, and is inserted and sealed with the vacuum connector (245) of the micro intelligent gas distribution module (200).
  • the other end of the vacuum port is located inside the control valve island and communicates with the first vacuum line (78);
  • the vacuum sensor (67) is provided with a first port and a second port, the first port of which is connected to the first vacuum line (78)
  • the second port is connected to the fourth solenoid valve first vent hole (651) of the fourth solenoid valve;
  • the fourth solenoid valve of the fourth solenoid valve is the second vent hole (652) and the valve rear exhaust line ( 77) connected, the fourth solenoid valve third vent (653) is connected to the atmosphere;
  • the valve rear exhaust line (77) is connected to the first port of the exhaust control solenoid valve (66), and the exhaust control solenoid valve
  • the second port is in communication with a fourth pressure line (76) and the fourth
  • the invention also provides a miniature intelligent pressure interface module for use in the hand-held fully automatic pressure calibrator.
  • the miniature intelligent pressure interface module (400) includes a joint seat (402) for assembling a standard pressure module (500), and the joint seat is provided with a pressure joint (403), a pressure reference joint (414), and a pneumatic input interface ( 415), the air pressure input interface is connected to the pressure joint, the pressure reference joint and the standard pressure module through an air flow line located in the joint seat, wherein the pressure joint and the pressure reference joint are connected with an external pressure measuring instrument, wherein the joint
  • the seat (402) includes a first cylindrical structure and a second cylindrical structure extending in two different directions, having three connecting faces, that is, a junction of the two cylindrical structures is provided with a pneumatic input connecting surface, and the air pressure An input interface (415) is disposed on the air pressure input connection surface; an end of the first cylinder structure is provided with a joint connection surface, and the pressure joint (403) and the reference pressure joint (414) are disposed on the joint
  • the joint seat (402) is further provided with a pressure reference chamber (408), a gas-liquid separation chamber (407) and a first electromagnetic valve (409), and the first electromagnetic valve is arranged at the pressure joint (403) and the gas
  • the pressure connection is communicated with the gas-liquid separation chamber through the first gas flow line (421) and the first electromagnetic valve second vent hole (424), and the gas-liquid separation chamber is directly connected to the gas pressure input port (415)
  • the gas-liquid separation chamber is in communication with the pressure reference chamber through the first solenoid valve and the fourth gas flow conduit (420), and the pressure reference chamber is in communication with the pressure reference joint (414).
  • the outside of the gas-liquid separation chamber is sealed by a deflation valve seat (404), a second electromagnetic valve (410) is disposed inside the deflation valve seat, and a second vent hole of the second electromagnetic valve of the second electromagnetic valve ( 426) communicating with the gas-liquid separation chamber (407) through the first gas flow line (421), and the second electromagnetic valve first vent hole (425) of the second electromagnetic valve is in communication with the atmosphere.
  • the internal port positions of the pressure joint (403) and the pressure reference joint (414) are respectively provided with a decontamination filter (413).
  • a modular pressure interface (416) and a module pressure reference interface (417) are disposed on the standard pressure module connection surface of the connector base (402), and the module pressure reference interface is directly connected to the pressure reference cavity (408), and the module The pressure port communicates with the gas-liquid separation chamber (407) through a third gas flow line (419).
  • a standard pressure module mounting seat (406) is mounted on the standard pressure module connecting surface of the joint base (402), and the standard pressure module mounting seat is a column structure with an L-shaped stepped hole, and the L-shaped step
  • the deeper side of the hole is connected to the standard pressure module mounting seat connecting surface of the joint seat, and the one side of the shallower side of the L-shaped stepped hole is provided with a through groove, and the upper part of the through groove is provided with a second circuit board (405).
  • a communication plug (412) is electrically connected to the second circuit board through the through slot, and a socket (411) is electrically connected to the communication plug.
  • the standard pressure module (500) is a differential pressure module
  • the differential pressure module is inserted into the joint seat (402) from the standard pressure module mount (406), and the pressure interface (505) of the differential pressure module is inserted.
  • the pressure reference interface (514) is inserted into the module pressure reference interface (417), and the sealing ring (504) of the differential pressure module forms a seal to the connection of the above interfaces, and the connector
  • the communication plug (412) on the seat is inserted into the communication socket (508) of the differential pressure module, and the first circuit board (502) of the differential pressure module is electrically connected to the second circuit board (405) on the connector base, and the differential pressure Module captive screws (506) Fixing the differential pressure module to the connector block (402); or
  • the standard pressure module is an absolute pressure module, and the pressure interface (505) of the absolute pressure module is inserted into the module pressure interface (416) of the joint seat, and the sealing ring (504) of the absolute pressure module forms a seal to the interface connection.
  • the communication plug (412) on the connector socket is inserted into the communication socket (508) of the absolute voltage module, and the first circuit board (502) of the absolute voltage module is electrically connected to the second circuit board (405) on the connector base, and the pressure is applied.
  • the captive screw of the module secures the absolute module to the connector block (402); or
  • the standard pressure module is a gauge pressure module, and the pressure interface (505) of the gauge pressure module is inserted into the module pressure interface (416) of the joint seat, and the sealing ring (504) of the gauge pressure module forms a seal on the interface joint.
  • the communication plug (412) on the connector socket is inserted into the communication socket (508) of the gauge module, and the first circuit board (502) of the gauge module is electrically connected to the second circuit board (405) on the connector socket, and the pressure is applied.
  • the captive screws of the module secure the gauge module to the connector block (402).
  • the interface circuit board (600) is distributed with an interface circuit board plug (601) for connecting the main control circuit board (700), and the gas distribution module socket (602) for connecting the micro smart a circuit (201) of the gas distribution module (200), a control module socket (603) for connecting a circuit (301) of the micro intelligent gas control module (300), and a battery plug (604) for connecting the rechargeable battery (900), the interface A modular jack (606) is used to connect the circuitry (401) of the miniature smart pressure interface module (400).
  • a display socket (705) is disposed on the main control circuit board (700), a touch screen socket (706) is respectively inserted into the display screen and the touch screen in the touch display screen (800), and the module interface socket (704) is used for connecting the extended External module interface (025) such as temperature, pressure, combined socket (707) of USB interface (024) and DC interface (023), interface circuit board socket (703) for connecting interface circuit board (600), core circuit board ( 701) and a Bluetooth module (708), a Wifi module (702), a memory (711), a micro switch (712), and the like.
  • the extended External module interface such as temperature, pressure, combined socket (707) of USB interface (024) and DC interface (023
  • interface circuit board socket (703) for connecting interface circuit board (600), core circuit board ( 701) and a Bluetooth module (708), a Wifi module (702), a memory (711), a micro switch (712), and the like.
  • the main control circuit board (700) further includes a measurement circuit (709) for connecting an external electrical measurement interface, wherein the external electrical measurement interface is a plurality of external electrical measurement interfaces (022), and is mounted on an electrical measurement port pressure plate. (021), and press it into the measuring socket (012) on the front end of the upper casing (010).
  • a measurement circuit 709) for connecting an external electrical measurement interface, wherein the external electrical measurement interface is a plurality of external electrical measurement interfaces (022), and is mounted on an electrical measurement port pressure plate. (021), and press it into the measuring socket (012) on the front end of the upper casing (010).
  • the main control circuit board (700) and the interface circuit board (600) are connected by a support frame (050), and the support frame (050) is integrated with the main control circuit board (700) and the touch display screen (800) in the upper case. (010) inside.
  • the communication module (1000) is also connected to the main control circuit board (700), and the communication module (1000) is connected to the database (3000) through the network (2000).
  • the main control circuit board (700) is electrically connected to the camera assembly, the camera assembly includes a camera (4000), a camera (5000) disposed on the camera, and an image recognition program implanted in the main control circuit board (700).
  • the camera is facing the front appearance of the pressure gauge to be inspected to capture the data, model information and appearance characteristics displayed on the dial of the tested pressure gauge.
  • the invention is a hand-held automatic calibrator, small in size and light in weight, suitable for hand-held, covering multiple functions of automatically generating gas pressure, stably controlling pressure, data recording, etc.; Perform calibration work on site.
  • the invention has a modular intelligent pneumatic system consisting of a micro intelligent gas distribution module (including a micro air pump), a micro intelligent pressure control module and a micro intelligent pressure interface module.
  • a micro intelligent gas distribution module including a micro air pump
  • a micro intelligent pressure control module and a micro intelligent pressure interface module.
  • Each component of the modular intelligent pneumatic system is connected to the interface circuit board, and the interface circuit board is inserted and connected with the main control circuit board of the main control circuit system, and the control of the intelligent pneumatic system is completed through the main control circuit system, thereby realizing intelligent pressure generation, Gas distribution, pressure control, pressure relief, sewage discharge and other operations.
  • the invention can replace the standard pressure module installed on the pressure interface module, so as to adapt to the instrument with different precision, different range, different types (absolute pressure, differential pressure, gauge pressure), realize the pressure meter of different types. check.
  • the main control circuit board of the invention comprises a measuring circuit part, and the external electrical measuring interface of the calibrator is connected to the measuring circuit part, and the current, voltage and other electric signals of the tested pressure measuring instrument can be measured, and the signal processing is performed by the measuring circuit part.
  • the main control board can record the electrical signals from each part, calculate the verification result, store the verification record and output the verification report.
  • the main control circuit board is provided with a Wifi module and a bluetooth module.
  • the external communication interface connected to the main control circuit board is provided with a USB interface, and the calibrator can use the wireless or wired communication method to import and export data and reports.
  • the external communication interface is provided with two expansion module interfaces.
  • the module interface is connected to the main control circuit board, and the external pressure, temperature and other modules are connected from the interface module to expand the verification function of the calibrator of the invention to other required parameters. Acquisition (such as external pressure, temperature), extending the pressure range of the calibrator of the present invention and the range of the local pressure generating capability.
  • H Increase the communication module, so that the calibrator has its own remote communication function, eliminating the intermediate communication medium.
  • the calibrator As long as it is connected to the network it supports, it can be connected to the remote database through simple setup, and the pre-storage can be downloaded from the database in real time. The basic information of the pressure gauge is monitored, and the calibration data can be uploaded to the database in real time through the network.
  • the hand-held automatic calibrator of the invention has a rechargeable, large-capacity power supply battery, which can last for a long time. Power supply for on-site calibration.
  • 1A is a view showing the whole machine of the hand-held automatic pressure calibrator of the present invention.
  • 1B is a structural logic diagram of a hand-held automatic pressure calibrator of the present invention.
  • 1C is an exploded view showing the structure of the hand-held automatic pressure calibrator of the present invention.
  • FIG. 2 is an axial side exploded view of the overall structure of the hand-held automatic pressure calibrator of the present invention
  • FIG. 3 is an exploded perspective view of the entire structure of the hand-held automatic pressure calibrator of the present invention.
  • FIG. 4 is a front view of a main control circuit board with an external electrical measurement interface, a DC interface, and a USB interface connected to the hand-held automatic pressure calibrator of the present invention
  • FIG. 5 is a side view of a bottom view of a main control circuit board with an external electrical measurement interface, a DC interface, and a USB interface connected to the hand-held automatic pressure calibrator of the present invention
  • FIG. 6 is a structural view showing the installation of an external electrical measurement interface of the hand-held automatic pressure calibrator of the present invention.
  • Figure 7 is a bottom view of Figure 6;
  • Figure 8 is a schematic diagram of a hook type fixing seat of the hand-held automatic pressure calibrator of the present invention.
  • Figure 9 is a structural view showing the mounting structure of the hook type fixing seat of the hand-held automatic pressure calibrator of the present invention.
  • Figure 10 is a cross-sectional view of the miniature intelligent pressure interface module of the hand-held automatic pressure calibrator of the present invention and the upper case seal of Figure 9 taken along line A-A;
  • Figure 11 is a view showing the assembly of the pneumatic system of the hand-held automatic pressure calibrator of the present invention.
  • Figure 12 is a side view of the assembly of the pneumatic system of the hand-held automatic pressure calibrator of the present invention.
  • Figure 13 is a clockwise 90° rotation view of the pneumatic system of the hand-held automatic pressure calibrator of the present invention taken along line B-B of Figure 12;
  • Figure 14 is a cross-sectional structural view of the micro intelligent gas distribution module
  • Figure 15 is a cross-sectional view showing the structure of a micro air pump in a micro intelligent gas distribution module
  • Figure 16 is a schematic view showing the working state of the micro air pump piston rod moving to the right;
  • Figure 17 is a schematic view showing the working state of the piston pump rod of the micro air pump moving to the left;
  • Figure 18A and B are cross-sectional views of two different configurations of a two-stage cylinder in a micro air pump
  • Figure 19 is a cross-sectional view showing the structure of a check valve in a micro air pump
  • Figure 20A-C is a cross-sectional view showing the connection of the V1-V3 valve to the micro air pump, respectively;
  • 21A is a front elevational view of the micro smart gas distribution module
  • Figure 21B is a partial cross-sectional view taken along line C-C of Figure 14;
  • Figure 22 is a partial cross-sectional view taken along line D-D of Figure 21A;
  • Figure 23 is a front elevational view showing the structure of the micro intelligent pressure control module
  • Figure 24 is a plan view showing the structure of the micro intelligent pressure control module
  • Figure 25 is a cross-sectional view taken along line B-B of Figure 24;
  • Figure 26 is a cross-sectional view taken along line A-A of Figure 24;
  • Figure 27 is a cross-sectional view taken along line C-C of Figure 23;
  • Figure 28 is a front elevational view of the miniature smart pressure interface module
  • Figure 29 is a cross-sectional view taken along line A-A of Figure 28;
  • Figure 30 is a left side view of the miniature smart pressure interface module
  • Figure 31 is a partial cross-sectional view taken along line B-B of Figure 28 (with the standard pressure module of Example 2 installed);
  • Figure 32 is a partial cross-sectional view taken along line B-B of Figure 28 (with the standard pressure module of Example 1 installed);
  • Figure 33 is a cross-sectional view showing the structure of a first example of a standard pressure module
  • Figure 34 is a bottom plan view of a first example of a standard pressure module
  • Figure 35 is a cross-sectional view showing the structure of a second example of a standard pressure module
  • Figure 36 is a bottom view of a second example of a standard pressure module
  • Figure 37 is a logic block diagram of another embodiment of the hand-held fully automatic pressure calibrator of the present invention.
  • 100 micro air pump
  • 200 micro intelligent gas distribution module
  • 201 micro intelligent gas distribution module connection circuit
  • micro intelligent pressure control module 300: micro intelligent pressure control module, 301: micro intelligent pressure control module connection circuit, 302: control module pressure connector, 303: elastic air guiding pad;
  • micro intelligent pressure interface module 400: micro intelligent pressure interface module, 401: micro intelligent pressure interface module connection circuit;
  • 600 interface circuit board
  • 601 interface circuit board plug
  • 602 gas distribution module socket
  • 603 control module socket
  • 604 battery plug
  • 606 interface module socket
  • 700 main control circuit board
  • 701 core circuit board
  • 702 Wifi module
  • 703 interface circuit board socket
  • 704 module interface socket
  • 705 touch screen socket
  • 706 display socket
  • 707 USB interface and DC interface Combination socket
  • 708 Bluetooth module
  • 709 measurement circuit
  • 711 memory
  • 712 micro switch
  • 713 shrapnel
  • 900 rechargeable battery
  • 901 rail slot
  • 902 battery socket
  • 903 battery recess
  • 010 upper case
  • 011 through hole one
  • 012 measuring jack
  • 013 square through hole
  • 014 power button
  • 015 external electrical interface mounting hole
  • 016 waterproof end cap
  • 018 groove
  • 020 connected circuit board
  • 021 electrical pressure port
  • 022 external electrical interface
  • 023 DC interface
  • 024 USB interface
  • 025 module interface
  • 026 hook type fixed seat
  • 027 mounting board
  • 028 card Oh
  • 029 sealing ring
  • 040 lower cover
  • 041 filter
  • 042 suction through hole
  • 043 exhaust through hole
  • 050 support frame
  • 055 groove three
  • 056 reinforcing ribs.
  • the hand-held automatic pressure calibrator of the present invention adopts a modular design, and as shown in FIG. 1A, FIG. 1B and FIG. 1C, the calibrator includes a casing composed of an upper casing 010, a lower casing 030, and a lower cover 040, and An air path component, a circuit component, and a rechargeable battery 900 mounted outside the casing are integrated.
  • the pneumatic component includes a micro intelligent gas distribution module 200 (including a micro air pump 100), a micro intelligent pressure control module 300, a micro intelligent pressure interface module 400, and a standard pressure module 500.
  • the circuit components include a touch display 800 and a main control circuit.
  • the board 700, the interface circuit board 600, and the external electrical measurement interface 022 and the external electrical interface mounting hole 015, the circuit of the pneumatic component are connected to the interface circuit board 600, and the circuit component circuit is connected to the main control circuit board 700.
  • the hand-held automatic pressure calibrator shell of the invention is made of elastic material (thermoplastic polyurethane elastomer rubber TPU, good wrapping performance, suitable for hand-held), and the whole shell is light and convenient, and the hand-held is convenient and comfortable.
  • the housing structure is shown in Figures 1A, 1C, 2 and 3:
  • the housing comprises an upper casing 010 and a lower casing 030.
  • the upper casing 010 and the lower casing 030 are fastened to form a calibrator body suitable for hand-held.
  • the internal space of the main body is equipped with a miniature intelligent pressure interface module 400, a standard pressure module 500, and a main control.
  • the circuit board 700, the interface circuit board 600 and the touch display screen 800; the lower cover 040 is mounted on the outer side of the lower casing 030, and the inner space formed by the lower cover 040 and the lower casing 030 is equipped with a micro intelligent gas distribution module 200 (including the micro air pump 100).
  • the micro intelligent pressure control module 300, the rechargeable battery 900 is assembled on the lower outer side of the lower case 030.
  • the upper shell 010 is entirely a wedge-shaped cap-shaped body, and has a structure of being large and small according to the direction in which the calibrator is used (direction shown in FIG. 1A), and the upper end (the upper side of FIG. 2 and FIG. 3 is upper) has a beveled surface.
  • the pressure joint 403 and the reference joint 414 of the micro-intelligent pressure interface module 400 are exposed from the inclined surface of the upper casing 010 to the outside of the calibrator; the outer casing 010 is outwardly oriented (ie, the upward facing plane in FIGS. 2 and 3).
  • a square through hole 013 for accommodating the touch display screen 800 is provided; three circular measuring jacks 012 are arranged above the square through hole 013, and a circular hole is arranged below for mounting the power supply.
  • the flange of the power button 014 is tightly pressed with the inner side of the casing 010 at the position of the round hole; the outer casing 010 is provided with an external electrical interface mounting hole 015 (see Fig. 3).
  • the two external electrical interface mounting holes 015 are sealed by the waterproof end cap 016, and the two waterproof end caps 016 form a rotatable, movable, but non-disengaged relationship with the upper casing 010; the upper shell 010 peripheral edge end is combined with the lower casing 030 There is a groove 018 at the place.
  • the lower casing 030 is entirely a wedge-shaped bracket, and has a structure of being large and small according to the direction in which the calibrator is used (direction shown in FIG. 1A), and the upper end (left side in FIGS. 2 and 3) is a sloped surface, and the inclined surface There is a through hole 2 031 (see FIG. 3), and the elastic material (TPU) on the inner side of the lower case 030 transitions to the upper inclined surface of the lower case 030 and the through hole 2031 of the bevel, so that the through hole 031 and the parts installed in the through hole ( The standard pressure module mounts 406) of the miniature intelligent pressure interface module 400 are closely spaced.
  • a flange 036 is disposed at a joint of the edge of the lower shell 030 and the upper shell 010.
  • the tenon 036 of the lower shell 030 (the tenon 036 is also made of an elastic material TPU)
  • TPU an elastic material
  • a groove is formed around the inner square through hole 013 of the upper casing 010, a box-shaped waterproof foam is installed in the groove, and the touch display screen 800 is stacked to a touch screen bracket 801 (see FIG. 2).
  • the touch screen bracket 801 is mounted inside the upper casing 010 and fastened to the position of the square through hole 013 to press the waterproof foam.
  • the touch display screen 800 is composed of a touch screen and a liquid crystal display that are stacked together, and two screens are used in combination.
  • the lower cover 040 is a wedge-shaped cover as a whole, and has a structure of being small and large according to the direction in which the calibrator is used (the direction shown in FIG. 1A), and the overall small end is assembled upward on the outer upper part of the lower casing 030 (Fig. 2).
  • the left side of FIG. 3 is upper), and the mounting portion with the lower casing 030 is also made of elastic material (TPU).
  • TPU elastic material
  • the rechargeable battery 900 is mounted on the lower portion of the lower cover 040 of the lower case 030.
  • each part of the housing enables the hand-held automatic calibrator of the present invention to form a higher level waterproof and dustproof seal.
  • the upper casing 010, the lower casing 030, the lower cover 040 and the rechargeable battery 900 are integrally assembled to form the appearance of the hand-held automatic pressure calibrator shown in FIG. 1A, which shows the integrity of the calibrator and is suitable for hand-held.
  • FIG. 1A shows the integrity of the calibrator and is suitable for hand-held.
  • the direction of the calibrator shown in FIG. 1A is used to define up, down, left, right, front, back, and inside and outside.
  • the internal configuration of the hand-held automatic pressure calibrator and the assembly of the components are carried out in conjunction with the description of the following components.
  • Micro intelligent gas distribution module 200 (including micro air pump 100)
  • the micro intelligent gas distribution module 200 serves as a gas source for the calibrator, which is capable of storing pressurized gas and vacuum and switching to provide vacuum or pressurized gas.
  • the micro intelligent gas distribution module 200 includes a micro air pump 100 and a gas source end block 280.
  • the micro air pump 100 is a supercharged electric air pump, and the air source end block 280 connects the micro air pump 100 to the outside world. through.
  • the reference numerals in this section are:
  • 100 micro air pump, 101: motor, 102: motor seat;
  • 106 two-stage cylinder, 1061: first-stage through-hole, 1062: first step surface, 1063: second step surface, 1064: third step surface, 1065: fourth step surface, 1066: second-level through hole ;
  • 124 one-way spool, 1241: upper projection, 1242: lower projection, 125: one-way valve body, 1251: air inlet, 1252: air outlet, 126: spring, 127: valve end cover, 129 : valve body seal;
  • sealing ring sealing ring
  • V2 valve 2321: V2 valve first vent, 2322: V2 valve second vent;
  • V3 valve 2331: V3 valve first vent
  • 234 positive pressure gas capacity
  • 235 positive pressure gas volume ventilation line
  • 236 vacuum gas capacity
  • 237 vacuum gas volume ventilation line
  • 238 air flow line one
  • 239 air flow line two
  • 240 positive pressure connector
  • 241 sealed cushion
  • 2411 first shaped through hole
  • 2412 second shaped through hole
  • 242 aeration plate
  • 245 vacuum connector
  • 246 top cover.
  • the micro air pump 100 is a cylinder-oriented micro-charged electric air pump.
  • the specific structure thereof is shown in FIGS. 14 to 17 , and includes a motor 101 , an eccentric shaft 104 , a connecting rod 105 , a two-stage cylinder 106 , and a first-stage cylinder 1081 .
  • the pump body 108 is a connecting component of the electric air pump.
  • the motor 101 is vertically fixed to the pump body 108 side by the motor base 102.
  • the eccentric shaft 104 is fixed to the lower part of the motor base 102 by the pin 103, and the motor shaft extends. It enters the vertical groove of the eccentric shaft 104 and is positioned by the pin 103.
  • the lower end of the eccentric shaft 104 is provided with a driving handle 1041 extending downward from the axis, and the driving handle 1041 passes through a mounting hole at one end of the horizontally disposed connecting rod 105, and the end of the driving handle 1041 protrudes from the connecting rod 105 and is fixed by a nut;
  • the pin 109 is disposed through another mounting hole provided at the other end of the connecting rod 105, and the connecting rod 105 is connected to the piston rod 110 in the horizontal direction.
  • the connecting rod 105 is spaced from the piston rod 110, and the pin 109 extends out of the connecting rod.
  • the ends of the 105 and the ends of the projecting piston rods 110 are respectively fixed by nuts.
  • the piston rod 110 includes a rod portion and a piston primary end 1101 and a piston secondary end 1102 disposed at both ends of the rod portion, and the piston primary end 1101 and the piston secondary end 1102 extend into the primary cylinder 1081 and the secondary cylinder 106, respectively. in.
  • Both ends of the pump body 108 form a first-stage cylinder 1081 and a two-stage cylinder support seat 1082, that is, the first-stage cylinder 1081 and the two-stage cylinder support seat 1082 are integrally formed.
  • the primary cylinder 1081 is for receiving low pressure gas at the distal end of the movement of the link 105 (the "left" is the distal end of the movement of the link 105), and the primary end 1101 of the piston is mounted inside the primary cylinder 1081.
  • the two-stage cylinder support 1082 is for assembling a two-stage cylinder 106 for accommodating high-pressure gas, and the piston secondary end 1102 is fitted to the inner side of the two-stage cylinder 106.
  • the piston secondary end 1102 is a cylinder.
  • the piston secondary end 1102 extends into the interior of the secondary cylinder 106 to cooperate with the secondary cylinder 106 to form a seal.
  • the rod portion of the piston rod 110 does not extend into the interior of the secondary cylinder 106.
  • the piston rod 110 is sealed in the first-stage cylinder 1081 by a first combined seal 111 disposed at the primary end 1101 of the piston, and the first combined seal 111 is assembled by a hollow bowl-shaped seal ring-lined elastic seal;
  • the rod 110 forms a seal within the secondary cylinder 106 by a second combination seal 107 disposed between the secondary cylinder 106 and the outer surface of the piston rod 110, the second composite seal 107 being formed from a conventional high wear resistant rigid ring Used in combination with a jacket elastic seal.
  • the motor 101 drives the eccentric shaft 104 to rotate, and the connecting rod 105 is driven to swing left and right by the driving handle 1041 (the connecting rod 105 swings to the left end to be the moving distal end with respect to the eccentric shaft 104, and the rightward swing end point is opposite to the eccentric shaft 104.
  • the proximal end of the movement causes the piston rod 110 to reciprocate left and right along the axis in the primary cylinder 1081 and the secondary cylinder 106 by the pin 109.
  • the end surface area of the piston first end 1101 of the piston rod 110 is larger than the end surface area of the piston secondary end 1102.
  • the axial cross-sectional area of the first-stage cylinder 1081 is also larger than the axial cross-sectional area of the secondary cylinder 106.
  • the stroke of the piston rod 110 is the same, and the gas of the first-stage cylinder 1081 is compressed and then controlled by the one-way valve to enter the two-stage cylinder 106, and the volume is reduced, that is, further compressed. The first pressurization of the gas.
  • the outer end of the primary cylinder 1081 is provided with a cylinder mat 112, a one-way valve (including a primary suction check valve 115 and a primary exhaust check valve 116) and an end cap 113.
  • the cylinder block 112 is provided with two vent holes, and the primary suction check valve 115 and the primary exhaust check valve 116 communicate with the inside of the primary cylinder 1081 through the two vent holes.
  • the end cover 113 is provided with two pipelines, which are a first-stage suction line 114 and a first-stage exhaust line 117.
  • the primary suction line 114 is for connecting an outside air or an external compressed air line and is in communication with the primary suction check valve 115.
  • the primary exhaust line 117 is in communication with the primary exhaust check valve 116 for exhausting gas within the primary block 1081.
  • the outer end of the two-stage cylinder 106 is connected with a motor base 102.
  • the motor base 102 is internally provided with two pipelines communicating with the interior of the two-stage cylinder 106 (including the secondary suction line 120 and the secondary exhaust line 122).
  • An inlet check valve (secondary suction check valve 121) is installed in front of the inlet of the secondary suction line 120 for unidirectional intake into the secondary cylinder 106.
  • Another outlet check valve (secondary exhaust check valve 123) is installed at the outlet of the secondary exhaust line 122 for discharging the gas in the secondary cylinder 106 in one direction.
  • the pump body 108 and the motor base 102 may be of a split design.
  • a pressure plate 118 may be provided to cover and engage the upper end 113, the pump body 108 and the upper end of the motor base 102, and the secondary suction list
  • the valve 121 and the secondary exhaust check valve 123 are pressed; the pressure plate 118 is provided with a built-in transition line 119, one end of the transition line 119 is connected to the primary exhaust line 117, and the other end is connected to the second intake list.
  • the present invention also enables the pump body 108 to be integrated with the valve island 230 (see FIG. 14) such that the pressure plate 118 does not require replacement of the pressure plate 118 with the bottom of the valve island 230.
  • the two-stage cylinder 106 not only cooperates with the piston secondary end 1102 of the piston rod 110 to form a closed space to accommodate the high-pressure gas, but also the alignment of the secondary cylinder 106 and the primary cylinder 1081 in the same central axis.
  • the secondary cylinder 106 is located at the end of the secondary side of the piston rod 110 as a guide, forming a reverse guiding form, that is, the low pressure piston (the primary end 1101 of the piston) of the primary cylinder 1081 (low pressure cylinder) is forward (FIG. 15).
  • the assembled two-stage cylinder 106 (high-pressure cylinder) and the high-pressure piston (piston secondary end 1102) become the main guiding mechanism for the shaft and the hole to cooperate, and the low-pressure piston is forced to guide in the opposite direction.
  • the structure of the secondary cylinder 106 is shown in Fig. 18. A and B in Fig. 18 are two different structural forms of the secondary cylinder 106, respectively.
  • the two-stage cylinder 106 is a hollow cylinder, and the inner through hole is provided with two stages, which are a first-stage through-hole 1061 and a second-stage through-hole 1066, respectively, and the two-stage through-holes are connected to each other.
  • the diameter of the first-stage through-hole 1061 is larger than the diameter of the second-stage through-hole 1066.
  • the first-stage through-hole 1061 has a first stepped surface 1062.
  • the first stepped surface 1062 is perpendicular to the axial direction of the secondary cylinder 106 and is connected. The inner surfaces of the primary through hole 1061 and the second through hole 1066.
  • the inner diameter of the second stage through hole 1066 is matched with the outer diameter of the piston secondary end 1102 of the piston rod 110 to form a clearance fit, and the inner diameter of the first stage through hole 1061 is larger than the outer diameter of the piston secondary end 1102 of the piston rod 110, thereby
  • the inner surface of the first-stage through hole 1061, the first stepped surface 1062, and the outer surface of the piston secondary end 1102 of the piston rod 110 together form an annular groove in which the second combined seal 107 is placed, so that the second stage
  • the cylinder 106 forms a seal with the piston secondary end 1102 of the piston rod 110 to prevent gas inside the secondary cylinder 106 from leaking from the first stepped surface 1062; a connection between the pump body 108 and the secondary cylinder 106 is provided Protrusions 1083 (see FIG.
  • the outer surface of the secondary cylinder 106 is provided with an outer step disposed at an end of the secondary cylinder 106 adjacent to the motor base 102.
  • the outer step causes the outer surface of the secondary cylinder 106 to form two outer diameters. section.
  • the outer step surface of the outer step, that is, the second step surface 1063 is perpendicular to the axial direction of the secondary cylinder 106.
  • the second step surface 1063 is connected to the outer surfaces of the two portions of the two-stage cylinder 106 having different outer diameters.
  • a sealing ring 128 is disposed, and the sealing ring 128 abuts the second surface.
  • the stepped surface 1063, the motor base 102 is disposed outside the sealing ring 128, and the motor base 102 presses the sealing ring 128 to seal the side of the secondary cylinder 106 against the motor base 102, so that the high pressure gas inside the secondary cylinder 106 It can only be discharged through the secondary exhaust check valve 123.
  • the B-frame in Fig. 18 is another structural form of the secondary cylinder block 106, which is similar to the A-frame structure in Fig. 18, except that the outer step structure of the secondary cylinder block 106 is different.
  • the outer step of the two-stage cylinder 106 has two stages, and two outer step surfaces are formed, which are respectively a third step surface 1064 and a fourth step surface 1065, and the third step surface 1064 is separated from the second stage.
  • the central axis distance of the cylinder 106 is less than the distance of the fourth step surface 1065 from the central axis of the secondary cylinder 106.
  • the sealing ring 128 is disposed only on the third step surface 1064.
  • the third step surface 1064 and the fourth step surface 1065 are both press-fitted with the motor base 102.
  • the motor base 102 is pressed against the fourth step surface 1065 to prevent the secondary cylinder block 106.
  • the turbulence caused by the movement of the piston rod 110 (there may be a possibility that the force is continuously deformed after the elastic sealing ring is pressed); by adjusting the third step surface 1064 of the secondary cylinder 106 and the motor base 102 in the axial direction
  • the amount of compression of the seal ring 128 can be adjusted against the spacing between the faces of the resilient seal ring 128.
  • the motor base 102 has a structure matching/matching with the two outer step surfaces described above, on the one hand for fixing and pressing the sealing ring 128, and on the other hand, the motor seat 102 is also passed through the pressing surface matching the fourth outer step surface 1065.
  • the secondary cylinder 106 is axially pressed against the pump block 108.
  • the first-stage intake check valve 115, the first-stage exhaust check valve 116, the second-stage intake check valve 121, and the second-stage exhaust check valve 123 can all use the one-way valve of the same structure and existing structure. More preferably, the one-way valve structure shown in Fig. 19 can be used. As shown in FIG. 19, the one-way valve includes a one-way valve body 125, a valve end cover 127 threadedly coupled to the one-way valve body 125, a one-way spool 124 disposed inside the one-way valve body 125, and a check valve.
  • the spring 126 between the core 124 and the valve end cover 127 wherein the one-way valve body 125 is a hollow cylinder, the upper side is provided with an air inlet hole 1251 for inputting gas, and the lower end open end is connected with the valve end cover 127, the interface portion Sealing, the valve end cover 127 is provided with an air outlet 1252; the one-way valve body 124 is mounted coaxially with a gap in the inner cavity formed by the one-way valve body 125 and the valve end cover 127, and the one-way valve core 124 is provided with an upper protrusion
  • the portion 1241 and the lower protruding portion 1242 are provided with a valve body sealing ring 129 between the upper protruding portion 1241 and the inner wall of the check valve body 125, and the lower protruding portion 1242 is fitted with a spring 126.
  • the check valve works as follows: When gas enters through the intake hole 1251 of the one-way valve body 125 away from the spring 126 side, the gas applies a pressure to the one-way spool 124 and pushes the one-way spool 124 to the valve. End cap In the direction of movement of 127, the spring 126 is compressed while increasing the gap between the one-way spool 124 and the one-way valve body 125, the valve body seal 129 cannot be effectively sealed, the gas enters the one-way valve body 125, and passes through the one-way The gap between the valve body 125 and the one-way spool 124 is discharged from the air outlet 1252 of the valve end cover 127.
  • first, compact structure, can achieve volume miniaturization, save space; second, can be prepared separately, and then inserted into the required components, easy to use and replace; and third, change the installation direction
  • the opposite opening direction can be achieved for ease of use.
  • the micro air pump 100 is obtained by the assembly of the above components, and its working principle is as follows:
  • the motor 101 drives the eccentric shaft 104 to rotate, and the connecting rod 105 and the piston rod 110 are moved to the right side and finally reach the rightmost side.
  • the primary suction check valve 115 is opened, the primary exhaust check valve 116 is closed, and the external air is passed through the primary suction line.
  • the secondary suction check valve 121 is closed, before comes from The gas of the low pressure cylinder is further compressed in the secondary cylinder 106, so that the pressure thereof is increased to realize the secondary supercharging process of the gas.
  • the secondary exhaust check valve 123 is opened and discharged to the secondary supercharged state. gas.
  • the motor 101 drives the eccentric shaft 104 to rotate, and the link 105 and the piston rod 110 are moved to the left side and finally to the leftmost side.
  • the primary suction check valve 115 is closed, the primary exhaust check valve 116 is opened, and the gas in the primary cylinder 1081 is transited via the primary exhaust line 117.
  • the pipeline 119, the secondary suction check valve 121 and the secondary suction line 120 enter the secondary cylinder 106; at this time, the secondary cylinder 106 receives the gas from the primary cylinder 1081 due to the piston level
  • the area of the end 1101 is larger than the area of the secondary end 1102 of the piston.
  • the volume is compressed, so that the pressure is increased to achieve a first pressurization process of the gas.
  • the secondary exhaust check valve 123 remains closed; if the secondary cylinder 106 is inside
  • the secondary exhaust check valve 123 is opened, and the primary pressurized gas in the secondary cylinder 106 is discharged through the secondary exhaust line 122.
  • micro air pump 100 of the present invention are:
  • the second combination seal 107 is disposed in the annular groove defined by the inner surface of the secondary cylinder 106 and the outer surface of the piston rod 110, thereby the existing piston rod 110.
  • the dynamic seal with the secondary cylinder 106 is modified to be a static seal such that the life of the second composite seal 107 is increased;
  • the two-stage cylinder 106 is located at the piston secondary end 1102 of the piston rod 110, and the structure is a shaft and a hole-fitted guiding mechanism to form a self-contained air pump.
  • the matching distance between the two-stage cylinder 106 and the piston rod 110 is relatively Long, the stability of the movement of the piston rod 110 is improved, and the state in which the seal is used as the main part of the piston is changed, and the wear of the seal is reduced;
  • the two-stage cylinder 106 is made of wear-resistant and self-lubricating material, which reduces the friction between the two-stage cylinder 106 and the piston rod 110, and improves the life of the micro-pump 100;
  • the secondary cylinder 106 and the piston rod 110 can be self-lubricated so that no lubricating oil is required, forming an oil-free lubricating pressurized air pump, which reduces the pollution of the micro air pump 100;
  • the end surface area of the first end 1101 of the piston is large.
  • the connecting rod 105 only needs to apply a small force to the piston rod 110.
  • the large amount of gas in the primary cylinder 1081 is discharged into the secondary cylinder 106.
  • the motor 101 only needs to provide less power to the connecting rod 105, which saves energy; and the end surface area of the secondary end 1102 of the piston Smaller, the output gas pressure can be very high, and the piston rod 110 requires less power. Therefore, when the piston rod 110 moves to the right, the gas in the secondary cylinder 106 can be pressurized to realize the gas. Secondary pressurization process.
  • the air source end block 280 of the present invention includes a valve island 230, a positive pressure gas volume 234 disposed within the valve island 230, and a vacuum gas volume 236, and three ports in communication with the two gas and micro gas pump lines.
  • the valve island 230 is a component for arranging two gas contents, three solenoid valves and a pipe, and is internally provided with two large cavities, three smaller cavities and a plurality of pipe holes.
  • the two larger cavities disposed separately can be directly used as the positive pressure air volume 234 and the vacuum air volume 236, respectively.
  • the top of the cavity is sealed by the top cover 246, as shown in FIG. 21B.
  • the positive pressure air volume 234 is connected through a positive pressure air volume ventilation line 235 and communicates with a positive pressure connection head 240.
  • the vacuum air volume 236 is connected through a vacuum air volume ventilation line 237 and communicates with a vacuum connection head 245; Small volume chambers are respectively used to place the three solenoid valves V1 valves 231, V2 The valve 232 and the V3 valve 233, the positive pressure gas volume 234, the vacuum gas volume 236, and the three solenoid valves are connected by a pipe. among them:
  • V3 valve 233 is mounted at the valve island 230 near the low pressure end stage cylinder block 1081 of the micropump 100.
  • V3 is a two-position three-way solenoid valve, which includes three vent holes, that is, a V3 valve first vent hole 2331, a V3 valve second vent hole 2332, and a V3 valve third vent hole 2333, wherein the V3 valve third vent hole 2333 is connected to In the outside atmosphere, the V3 valve second vent 2332 communicates with the suction end of the micro air pump 100, that is, the primary suction line 114, and the V3 valve first vent 2331 communicates with the vacuum ⁇ 236 through the air flow line 238. The opening or closing of the three vents can be controlled by the V3 valve.
  • the V1 valve 231 is mounted at the valve island 230 near the high pressure end secondary cylinder 106 of the micropump 100 cylinder.
  • the V1 valve 231 is a two-position two-way solenoid valve, which includes two vent holes, that is, a V1 valve first vent hole 2311 and a V1 valve second vent hole 2312, wherein the V1 valve first vent hole 2311 is connected to the outside atmosphere, and the V1 valve is
  • the two vent holes 2312 are in communication with the secondary exhaust line 122 of the boost output end of the micro air pump 100.
  • the opening/closing of the V1 valve can control the gas communication/disconnection between the secondary exhaust line 122 and the outside.
  • the V2 valve 232 is used to communicate the positive pressure gas volume 234 with the boost output of the micro air pump 100, i.e., the secondary exhaust line 122.
  • the V2 valve 232 is a two-position two-way solenoid valve, and includes two vent holes, that is, a V2 valve first vent hole 2321 and a V2 valve second vent hole 2322, wherein the V2 valve first vent hole 2321 passes through the air flow line 239 and the second stage.
  • the exhaust line 122 is in communication (the secondary exhaust line 122 is divided into two branches, which are respectively connected to the V1 valve and the V2 valve), and the V2 valve second ventilation hole 2322 is in communication with the positive pressure air volume 234.
  • the V2 valve can be used to control the opening or closing of the two vents of the V2 valve.
  • the micro solenoid valve V1 valve 231, the V2 valve 232 and the V3 valve 233 assembled above, and the motor 101 of the micro air pump 100 are connected to the circuit of the interface circuit board 600, and the solenoid valve is opened or closed by the circuit control and the motor 101 of the micro air pump 100 is started or stopped.
  • the micro air pump 100 is connected to or disconnected from the air flow between the positive pressure air volume 234, the vacuum air volume 236 or the outside atmosphere, and the high pressure gas is stored inside the positive pressure air volume 234 to form a vacuum inside the vacuum air volume 236.
  • the above assembly is the basic form of the air source end block 280, which can do the following work:
  • the vacuum source generation process is: V3 is energized, at this time, the third vent hole 2333 of the V3 valve is closed, the second vent hole 2332 of the V3 valve and the first vent hole 2331 of the V3 valve are connected and opened, and the vacuum vent 236 is connected through the air flow line 238.
  • the gas line 122 and the secondary exhaust check valve 123 are delivered to the V1 valve; the V1 valve is energized, the V1 valve second vent 2312 and the V1 valve first vent 2311 are opened, and the gas extracted from the vacuum plenum 236 is from the V1 valve.
  • First A vent 2311 is discharged to the atmosphere.
  • the gas inside the vacuum gas volume 236 is continuously discharged, and the vacuum degree of the vacuum gas volume 236 is increased; when the V3 valve is de-energized, the first vent hole 2331 of the V3 valve communicating with the vacuum gas volume 236 is closed, The vacuum inside the vacuum plenum 236 is maintained. In the above process, V2 is turned off, and the vacuum gas container 236 is evacuated. The micro air pump 100 does not output pressurized gas.
  • the positive pressure gas source generation process is: the V3 valve is powered off, at this time, the V3 valve first vent hole 2331 is closed (the micro air pump 100 no longer vacuums the vacuum gas volume 236), and the V3 valve third vent hole 2333 and V3 valve
  • the second vent hole 2332 is connected and opened, and the primary air suction pipe 114 of the micro air pump 100 communicates with the atmosphere through the third vent hole 2333 of the V3 valve; the micro air pump 100 operates, and the lower cover 040 and the sealing buffer sandwiched between the valve islands 230
  • the pad 241 forms an intake through hole 042 (see FIGS.
  • the primary suction line 114 of the micro air pump 100 continuously extracts external air (air) from the intake through hole 42 and pressurizes it to form The pressurized gas; the V2 valve is energized and the V1 valve is de-energized, and the first vent hole 2321 of the V2 valve and the second vent hole 2322 of the V2 valve are opened, and the first vent hole 2311 of the V1 valve is closed, and the pressurized gas formed by the micro air pump 100 is sequentially passed through two.
  • Stage exhaust check valve 123, secondary exhaust line 122, V1 valve second vent hole 2312 outer ring flow path, air flow line 2 239, V2 valve first vent hole 2321, V2 valve second vent hole 2322 are It is delivered to the positive pressure gas volume 234 such that a pressure is created within the positive pressure gas volume 234.
  • the generated pressurized gas can be stored in the positive pressure gas volume 234 for use as a positive pressure gas source, and the vacuum gas volume 236 forms a vacuum source.
  • the positive pressure air volume 234 can be in gas communication with the micro intelligent pressure control module 300 through the vacuum connection head 245 through the positive pressure connection head 240 and the vacuum air volume 236 to provide a positive pressure air source or a vacuum source. .
  • the secondary cylinder 106 (high pressure cylinder) of the micro air pump 100 can pass through the exhaust through hole 043 by opening the V1 valve and closing the V2 valve (see FIG. 22, the lower cover 040 and The exhaust gas passage 043 is formed between the seal cushions 241 sandwiched between the valve islands 230 and communicates with the outside air.
  • the gas pressure in the high pressure cylinder is the external atmospheric pressure, thus achieving the pressureless start of the micro air pump 100.
  • the utility model can eliminate the problem that the micro air pump 100 damages the air pump parts due to the high pressure of the pipeline when the pipeline volume is small, thereby protecting the air pump and prolonging the service life of the micro intelligent gas distribution module 200.
  • the V1 valve, the V2 valve, and the V3 valve are controlled as needed to generate a pressurized gas and a vacuum.
  • the air source end block 280 of the above design can achieve the following beneficial effects: First, its compact structure and small volume can automatically provide pressurized gas and vacuum. Secondly, the generated positive pressure gas source and vacuum can be stored in the positive pressure gas volume 234 and the vacuum gas volume 236. When necessary, the positive pressure gas source and the vacuum source can be directly provided without the operation of the air pump, thereby reducing the frequent air pump. Start-up, improving the gas supply efficiency.
  • the micro intelligent gas distribution module 200 is inserted into the micro intelligent pressure control module. After 300, it is installed between the lower casing 030 and the lower cover 040, and the micro intelligent gas distribution module 200 is located on the side of the lower cover 040.
  • the present invention also expands the basic form of the above-described micro intelligent gas distribution module 200 to form an improved gas distribution module, which is enhanced by the addition of a sealed cushion and a filtration system.
  • the sealing cushion 241 located on the side of the lower cover 040 of the gas distribution module 200 shown in FIG. 14 is shown.
  • the sealing cushion 241 is laid on the outer surface of the valve island 230 and connected to the positive pressure.
  • the head 240, the vacuum connector 245 is located opposite the outer surface of the valve island 230 (see Fig. 21B).
  • the sealing cushion 241 is provided with two shaped through holes, wherein the first shaped through hole 2411 is located opposite to the positive pressure air volume 234, and the first shaped through hole 2411 passes through the V3 valve third ventilation hole 2333 and the primary suction line 114.
  • the second shaped through hole 2412 is located opposite to the vacuum plenum 236, and communicates with the secondary exhaust line 122 through the first vent hole 2311 of the V1 valve.
  • the rear plane of the lower cover 040 (see the plane shown in FIG. 3, defined by the direction in which the calibrator is used), and the rear plane is provided with a suction hole group 042 and a vent hole group 043 composed of a plurality of vent holes, and suction
  • the hole group 042 is opposite to and communicates with the first shaped through hole 2411.
  • the vent hole group 043 is opposite to and communicates with the second shaped through hole 2412.
  • a filter 041 (see FIG. 2) is disposed in the first shaped through hole 2411.
  • suction hole group 042 is covered from the inside, the back surface of the lower cover 040 and the outer surface of the valve island 280 are clamped from both sides to the sealing cushion 241 and the filter 041 therein, and the air source end block is sealed by the sealing cushion 241. 280 forms a flat seal.
  • the filter 041 passes through the third vent hole 2333 of the V3 valve and enters the primary cylinder 1081 (low pressure cylinder) of the micro air pump 100 through the primary suction line 114, so that the gas entering the low pressure cylinder from the outside is filtered and becomes Clean gas.
  • the first vent hole 2311 of the V1 valve When the V1 valve is energized, the first vent hole 2311 of the V1 valve is opened, and the pressurized gas in the two-stage cylinder 106 (high pressure cylinder) of the micro air pump 100 is passed from the secondary exhaust line 122 through the first vent hole 2311 of the V1 valve.
  • the second shaped through hole 2412 is inserted into the vent hole group 043 of the lower cover 040, and the pressureless start of the micro air pump 100 is not affected.
  • the improved miniature smart gas distribution module 200 adds the following benefits:
  • the first cover 040 and the valve island 230 form a flat seal from the two sides of the seal cushion 241, so that the air passages of the intake and exhaust are shorter, the air resistance is smaller, the air pump efficiency is higher, and the heat generated by the air pump is also It is easier to take away the air that is sucked and discharged.
  • the sealing cushion 241, the outer surface of the valve island 230, and the inner surface of the lower cover 040 together form an intake and exhaust passage, and connect the pneumatic system to the external environment.
  • the air pump is filtered from the external environment of the system.
  • the gas is exhausted to the outside of the system and concentrated and sealed to achieve waterproof and dustproofing of the gas source device.
  • the pressure-mounted sealing cushion 241 provides support for the air source device while avoiding the micro air pump The vibration is transmitted directly to the outside of the body, which acts as a shock absorber.
  • the inlet end uses an isolation filter to ensure that dust and other solid particles do not enter the interior of the gas path.
  • the miniature intelligent pressure control module 300 is used to control and regulate the pressure gas and vacuum gas from the micro intelligent gas distribution module 200 to obtain a high precision, stable desired pressure and vacuum gas.
  • 61 control valve island
  • 62 pressure plate
  • 63 circuit board
  • 64 intake control solenoid valve
  • a fourth solenoid valve 651: a fourth solenoid valve first vent, 652: a fourth solenoid valve second vent, 653: a fourth solenoid valve third vent;
  • first pressure line 73: first pressure line
  • 74 second pressure line
  • 75 third pressure line
  • 76 fourth pressure line
  • 77 post-valve exhaust line
  • 78 first vacuum line
  • 79 Second vacuum line
  • 80 vacuum interface
  • 81 first joint
  • 82 joint
  • 302 control module pressure joint
  • the pressure control module employs a compact structure, and includes a pressure sensor 69, a vacuum sensor 67, a circuit board 63, an intake control solenoid valve 64, and an exhaust control solenoid valve. 66.
  • the fourth electromagnetic valve 65, the pressure gas interface 72, the vacuum interface 80, and the air passage joint formed by the first joint 81, the connecting head 82 and the control module pressure joint 302 are sequentially connected to a control valve island 61, and the control valve is The inside of the island 61 is provided with a plurality of pipelines formed by pipeline holes, and the pipeline is used as a gas passage connecting passage between the respective components, and the above components cooperate with the pipelines to form a pressure gas passage and a vacuum gas passage;
  • the pressure sensor 69, the vacuum sensor 67, and the circuit board 63 are electrically connected to the interface circuit board 600 for controlling the intake control solenoid valve 64, the exhaust control solenoid valve 66, and the fourth solenoid valve 65 to regulate the input of the pressure gas and the vacuum gas.
  • the amount, thereby obtaining the same pressure value or vacuum value as the set value, enables intelligent control of the pressure/vacuum size. among them:
  • the intake control solenoid valve 64 and the exhaust control solenoid valve 66 are respectively fixed to both sides of the control valve island 61 by screws, the circuit board 63 is fixed to the upper side of the control valve island 61 by screws, and the fourth electromagnetic valve 65 is mounted to the control valve The inside of the island 61 is located between the intake control solenoid valve 64 and the exhaust control solenoid valve 66. It can be understood that the above fixing manner is not limited to being fixed by screws, and may be other fixing methods such as welding.
  • the circuit board 63 is provided with three sockets, namely a first socket 68, a second socket 70 and a third socket 71, and the pressure sensor 69 passes
  • the first socket 68 is electrically connected to the circuit board 63
  • the vacuum sensor 67 is electrically connected to the circuit board 63 through the second socket 70 (see FIG. 24).
  • the circuit board 63 is electrically connected to the interface circuit board through the third socket 71 (see FIG. 23).
  • the socket 703 (see FIG. 3); the intake control solenoid valve 64, the exhaust control solenoid valve 66, and the fourth solenoid valve 65 are electrically connected to the interface circuit board socket 703 through a connection line, and the interface circuit board socket 703 is electrically connected to the interface circuit.
  • Board 600 The interface circuit board 600 is for acquiring data measured by the pressure sensor 69 and the vacuum sensor 67, and controls opening/closing of the intake control solenoid valve 64, the exhaust control solenoid valve 66, and the fourth solenoid valve 65.
  • the pipeline located inside the control valve island 61 includes a first pressure line 73, a second pressure line 74, a third pressure line 75, a fourth pressure line 76, a post-valve exhaust line 77, and a first vacuum line. 78 and a second vacuum line 79; forming a pressure gas passage and a vacuum gas passage by engaging the respective solenoid valves through the above-mentioned pipeline.
  • the intake control solenoid valve 64 and the exhaust control solenoid valve 66 are miniature high-precision airflow control valves that precisely control the flow rates of the input and output pressure gases, respectively, both having a first port and a second port; a fourth solenoid valve 65 is a two-position three-way solenoid valve, and is provided with a fourth solenoid valve first vent hole 651, a fourth solenoid valve second vent hole 652, and a fourth solenoid valve third vent hole 653.
  • the pressurized gas is input from the pressurized gas interface 72, and the connection system of the various components on the pressurized gas passage is described in detail below from the pressurized gas interface 72.
  • the pressure gas port 72 is fixed to one side of the control valve island 61, one end is located on the surface of the control valve island 61, and is connected to an external pressure gas source insertion mode; the other end of the pressure gas port 72 is located inside the control valve island 61, and
  • the first pressure line 73 is in communication;
  • the pressure sensor 69 is provided with a first port and a second port, the first port of which is in communication with the first pressure line 73 and the second port of which is in communication with the second pressure line 74, the pressure The sensor 69 can sense the pressure value of the pressurized gas flowing through the interior thereof;
  • the intake control solenoid valve 64 is provided with a first port and a second port, the first port of which is in communication with the second pressure line 74, and the second port thereof
  • the third pressure line 75 is in communication with the fourth pressure line 75;
  • the fourth pressure line 76 is further connected to the second port of the exhaust control solenoid valve 66 and the first joint 81, respectively. Connected.
  • the first joint 81 is a hollow tubular structure connected to one end of the connector 82, and the other end of the connector 82 is connected to the control module pressure joint 302 in a plug-in manner.
  • the first joint 81 and the control module pressure joint 302 are internally provided. There are seals to seal the gas path.
  • control module pressure connector 302 can be connected to the air pressure input interface 415 of the micro intelligent pressure interface module 400.
  • the pressure interface module is generally connected with a standard pressure module 500, and can also be connected to the pressure gauge to be tested;
  • the control module pressure joint 302, pressurized gas or vacuum gas is delivered to the standard pressure module 500 and the pressure gauge being tested.
  • the control module pressure joint 302 is connected to the connector 82 in a plug-in manner, so that the quick connection or combination between the first joint 81 and the control module pressure joint 302 can be conveniently achieved by sliding the joint 82 to achieve a gas path connection or disconnect.
  • the vacuum gas source is accessed from the vacuum port 80, and the connection system for the various components on the vacuum gas passage is described in detail below from the vacuum port 80.
  • the vacuum interface 80 is fixed on the other side of the control valve island 61, one end is located on the surface of the control valve island 61, and is connected to the external vacuum gas source insertion mode; the other end of the vacuum interface 80 is located inside the control valve island 61, and the A vacuum line 78 is connected; the vacuum sensor 67 is provided with a first port and a second port, the first port of which is in communication with the first vacuum line 78, and the second port of which is connected to the fourth solenoid valve of the fourth solenoid valve 65.
  • the air hole 651 is in communication, the vacuum sensor 67 can sense the vacuum value of the vacuum gas flowing therethrough; the fourth electromagnetic valve second vent hole 652 of the fourth electromagnetic valve 65 is in communication with the valve rear exhaust line 77, fourth The solenoid valve third vent 653 is connected to the atmosphere; the valve rear exhaust line 77 is connected to the first port of the exhaust control solenoid valve 66, and the second port of the exhaust control solenoid valve 66 is connected to the fourth pressure line 76.
  • the fourth pressure line 76 is connected to the first joint 81.
  • the pressure gas passage and the vacuum gas passage are connected to the first joint 81 through the components and the pipeline, and the pressure gas or the vacuum gas is supplied to the micro intelligent pressure interface module via the joint 82 and the control module pressure joint 302. 400, wherein the control module pressure connector 302 is in communication with the pneumatic input interface 415 of the miniature intelligent pressure interface module 400.
  • the above components are assembled into a miniature intelligent pressure control module 300 according to the above connection relationship, and the pressure control module passes through the vacuum sensor 67, the pressure sensor 69, the intake control solenoid valve 64, the exhaust control solenoid valve 66 and the fourth solenoid valve 65, and the control circuit.
  • the working principle is as follows:
  • the pressure gas from the positive pressure connector 240 of the micro intelligent valve module 200 flows from the pressure gas port 72, and then sequentially flows through the first pressure line 73, the pressure sensor 69, and the intake control solenoid valve 64.
  • the fourth pressure line 76, the first joint 81 and the control module pressure joint 302 enter the pneumatic input interface 415 of the miniature intelligent pressure interface module 400, for example, via the control module pressure joint 302, the pressurized gas passes through the miniature
  • the intelligent pressure interface module 400 is provided to the pressure gauge being tested and the standard pressure module 500.
  • the exhaust control solenoid valve 66 is closed to block the vacuum gas.
  • the standard pressure module 500 measures the pressure value of the pressure gas, and the interface circuit board 600 compares the measured pressure value with the set pressure value. If the pressure value of the pressure gas is less than the set pressure value, the intake air control is continued.
  • the solenoid valve 64 is opened, the exhaust control solenoid valve 66 is closed, and the intake control solenoid valve 64 controls the input of the pressure gas. By continuously supplying the pressure gas, the pressure supplied to the pressure gauge to be measured will increase until the set pressure is reached.
  • the intake control solenoid valve 64 is closed and the exhaust control solenoid valve 66 is opened, at this time, the pressure gas flowing to the first joint 81 Part of the flow to the fourth electromagnetic via the exhaust control solenoid valve 66
  • the fourth solenoid valve of the valve 65 is the second vent 652.
  • the fourth solenoid valve 65 is kept in the power-off state, and the fourth solenoid valve second vent 652 of the fourth solenoid valve 65 and the fourth solenoid valve third passage
  • the air holes 653 are connected, and a part of the pressure gas is discharged to the outside through the third electromagnetic valve third vent 653.
  • the exhaust control solenoid valve 66 and the intake air control are performed.
  • the solenoid valves 64 are all closed to provide a pressurized gas having a set pressure value to the pressure gauge being tested.
  • the vacuum gas from the micro-intelligent valve module 200 vacuum connector 245 passes through the vacuum port 80, the first vacuum line 78, the second vacuum line 79, the fourth solenoid valve 65, and the exhaust control solenoid valve 66. (in the open state), the fourth pressure line 76, the first joint 81, and the control module pressure joint 302 while simultaneously drawing a vacuum to the measured pressure gauge and standard pressure module 500 connected to the control module pressure fitting 302.
  • the fourth solenoid valve 65 is in an energized state, the fourth solenoid valve first vent hole 651 and the fourth solenoid valve second vent hole 652 are in communication, the fourth solenoid valve second vent hole 652 and the fourth solenoid valve
  • the third vent 653 is opened, and at the same time, the intake control solenoid valve 64 is closed to block the pressure gas.
  • the standard pressure module 500 measures the degree of vacuum of the vacuum gas, and compares the measured vacuum degree with the set vacuum degree value by the interface circuit board 600. If the supplied vacuum degree is not low enough, the exhaust control solenoid valve 66 is maintained.
  • the vacuum interface 80 and the pressure gas interface 72 of the micro intelligent pressure control module 300 are respectively sealed and inserted with the vacuum connector 245 and the positive pressure connector 240 of the micro intelligent valve module 200.
  • the micro intelligent pressure control module 300 is located on the side of the lower casing 030, and the back of the lower casing 030 (ie, below the direction shown in FIGS. 2 and 3) is provided for mounting the micro intelligent pressure control module 300. Groove.
  • the elastic air distribution module 200 and the micro intelligent pressure control module 300 are provided with an elastic air guiding cushion 303, and the elastic air guiding cushion 303 is provided with an air guiding groove, and the air guiding groove is a fourth electromagnetic valve on the micro intelligent pressure control module 300.
  • the third vent 653 is in communication with the process aperture 44 on the micro smart gas distribution module 200 (for centralized venting of the miniature intelligent pressure control module 300).
  • the elastic air guiding cushion 303 has a buffer damping effect, which can reduce and isolate the vibration of the micro air pump 100 on the micro intelligent gas distribution module 200.
  • the micro intelligent pressure interface module 400 is used to connect the pressure gauge to be inspected and the standard pressure module 500, and realize filtration, gas-liquid separation and sewage discharge to the backflow of the instrument to be inspected.
  • the control module pressure connector 302 on the micro-intelligent pressure control module 300 is inserted into the input end of the micro-intelligent pressure interface module 400 through a corresponding slot to provide a controlled pressure gas to the micro-intelligent pressure interface module 400.
  • micro intelligent pressure interface module 400: micro intelligent pressure interface module
  • 401 micro intelligent pressure interface module connection circuit
  • 402 connector seat
  • 403 pressure connector
  • 404 deflation valve seat
  • 405 second circuit board
  • 406 standard pressure module mount
  • 407 gas-liquid separation chamber
  • 408 pressure reference chamber
  • 409 first solenoid valve
  • 410 second solenoid valve
  • 411 socket
  • 412 communication plug
  • 413 decontamination filter
  • 414 pressure reference connector
  • 415 pneumatic input interface
  • 416 module Pressure interface
  • 417 module pressure reference interface
  • 418 end cap
  • 419 third airflow line
  • 420 fourth airflow line
  • 422 second airflow line
  • 423 a solenoid valve first vent
  • 424 first solenoid valve second vent
  • 425 second solenoid valve first vent
  • 426 second solenoid valve second vent
  • 427 mounting hole.
  • the miniature intelligent pressure interface module 400 includes a connector block 402 and a standard pressure module mount 406 that support the entire pressure interface module, wherein the connector block 402 includes an angle extending in two different directions.
  • the two cylindrical structures that is, the first cylindrical structure and the second cylindrical structure, the joint seat 402 has three connecting faces, and the intersection of the two cylindrical structures is provided with a pneumatic input connecting surface; the end of the first cylindrical structure
  • the joint has a joint connection surface for the pressure connection of the pressure gauge; the end of the second cylinder structure is provided with a standard pressure module connection surface for connecting the standard pressure module 500 and the standard pressure module mount 406; standard pressure
  • the module mount 406 is a cylindrical structure having a through hole for connecting the standard pressure module 500; the through hole of the standard pressure module mount 406 is an L-shaped stepped hole, and the deep side of the L-shaped stepped hole and the joint seat 402
  • the standard pressure module mounting base is connected to the connecting surface, and a shallow groove on the one side of the L-shaped stepped hole is provided with a through groove for assembling the communication plug 412.
  • a joint 403 and a pressure reference joint 414 are disposed on the joint connection surface of the joint 402 for respectively connecting the pressure end and the pressure reference end of the pressure gauge to be inspected;
  • the outer side is covered by the one end cover 418, and the sealing ring is disposed at the joint; the gas-liquid separation chamber 407 is located on the other side of the joint 403 of the joint seat 402 for buffering gas and performing gas-liquid separation, and the gas-liquid separation chamber 407
  • the outer side is sealed by a deflation valve seat 404; the venting valve seat 404 is provided with a second electromagnetic valve 410, and the second electromagnetic valve second venting hole 426 of the second electromagnetic valve 410 is separated from the gas and liquid by the first air flow line 421.
  • the chamber 407 is in communication, and the second solenoid valve first vent 425 is in communication with the atmosphere.
  • the venting and effluent of the gas-liquid separation chamber 407 is realized by controlling the opening/closing of the second solenoid valve 410.
  • the first solenoid valve 409 is disposed at the pressure joint. 403 and the gas-liquid separation chamber 407, the pressure joint 403 communicates with the gas-liquid separation chamber 407 through the second gas flow line 422 and the first electromagnetic valve second vent 424, and the gas-liquid separation chamber 407 passes through the first electromagnetic valve 409 and the
  • the air flow line 420 is in communication with the pressure reference cavity 408;
  • a pneumatic input interface 415 (for connecting the control module pressure connector 302 of the miniature intelligent pressure control module 300) is disposed on the air pressure input connection surface of the connector block 402.
  • the air pressure input interface 415 Receiving input pressure to which the gas-liquid separation chamber 407 may be in direct communication with chamber 407 gas-liquid separator.
  • the joint base 402 respectively extends a protrusion on both sides of the pressure joint 403 and the pressure reference joint 414, and the two protrusions are respectively provided with a mounting hole 427 through which the screw can be passed.
  • the pressure interface module is integrally fixed to the hand-held automatic pressure calibrator housing of the present invention.
  • the internal port positions of the pressure joint 403 and the pressure reference joint 414 are respectively provided with a decontamination filter 413 for filtering pollutants or impurities caused by the backflow of the tested pressure gauge used in a complex environment to protect the joint and the calibrator The piping inside.
  • the standard pressure module connection surface of the connector block 402 is used to connect the standard pressure module 500 and the standard pressure module mount 406.
  • the upper circuit slot of the L-shaped step hole of the standard pressure module mount 406 is mounted with a second circuit board 405, and the communication plug 412
  • the communication plug 412 is electrically connected to the second circuit board 405 through the through slot, and the communication plug 412 is electrically connected to a socket 411 and integrates the micro smart pressure interface module 400 solenoid valve and the like to form a micro intelligent pressure interface module connection circuit 401 (see FIG. 2).
  • the socket 411 is connected to the micro intelligent pressure interface module connection circuit 401; the module pressure of the standard pressure module connection surface of the connector block 402 is set
  • the interface 416 and a module pressure reference interface 417 are used to insert the standard pressure module 500; the module pressure reference interface 417 is in direct communication with the pressure reference chamber 408, and the module pressure interface 416 is connected to the gas-liquid separation chamber 407 through the third air flow line 419. through.
  • the micro intelligent pressure interface module 400 is fixed to the upper end inclined surface of the upper casing 010 by the hook type fixing base 026.
  • the hook-type fixing base 026 is hung on the bevel rib 056 and then fixed on the inner side of the upper casing 010.
  • the micro-intelligent pressure interface module 400 is fixed on the hook-type fixing base 026 through its mounting hole 427, thereby being fixed in the upper casing 010.
  • the miniature intelligent pressure interface module 400 is fixed as described above After being in the upper casing 010, the air pressure input interface 415 is aligned and sealingly connected with the control module pressure joint 302 of the micro intelligent pressure control module 300.
  • the pressure joint 403 of the micro intelligent pressure interface module 400 and a pressure reference joint 414 are from the upper casing.
  • the upper end of the 010 oblique through hole 011 is exposed to the outside of the calibrator; at the same time, the sealing joint of the pressure joint 403 and the pressure side joint end of the pressure reference joint 414 is mounted on the joint seat 402 of the miniature intelligent pressure interface module 400 to make the micro intelligent pressure interface module 400 is in close contact with the through hole 011.
  • the lower casing 030 is installed with the upper casing 010 from below the upper casing 010.
  • the tongue 036 of the lower casing 030 and the upper casing 010 mating surface is inserted into the groove 018 of the upper casing, and the upper casing 010 is in close contact with the mounting surface of the lower casing 030;
  • the standard pressure module mount 406 of the miniature intelligent pressure interface module 400 It is aligned with the beveled through hole 031 in front of the lower case 030.
  • the standard pressure module 500 can be plugged from the ramp through hole 031 to the standard pressure module mount 406 of the miniature smart pressure interface module 400.
  • the standard pressure module 500 provides a high precision standard pressure value as a pressure reference during the test.
  • the invention can replace the standard pressure module 500 of different precisions, different ranges and different types (absolute pressure, differential pressure, gauge pressure) installed on the pressure interface module, and realize verification of different pressure instruments.
  • 501 base
  • 502 first circuit board
  • 503 base cover
  • 504 sealing ring
  • 505 pressure port
  • 506 no screw
  • 507 pressure sensor
  • 508 communication socket
  • 509 gasket
  • 510 waterproof breathable membrane
  • 511 vent
  • 512 pressure ring
  • 513 screw
  • 514 pressure reference interface
  • the absolute pressure module/gauge module includes a base 501, a circuit board 502, a pressure sensor 507, a base cover 503, and a communication socket 508, wherein:
  • the base 501 has an L-shaped structure, and a thicker side defines a mounting groove for mounting the sensor.
  • the pressure sensor 507 is mounted from the top to the bottom in the mounting groove and is pressed by a pressing ring 512;
  • the through hole is for mounting a pressure port 505, and a seal ring 504 is disposed on the outer periphery of the pressure port.
  • the first circuit board 502 is mounted on the upper side of the base 501.
  • the L-shaped base 501 is provided with an opening at a thinner side.
  • the communication socket 508 is mounted on the circuit board 502 through the opening.
  • the signal transmission line of the pressure sensor 507 Connected to the circuit board 502, the first circuit board 502 analyzes the output signal of the pressure sensor 507, After debugging and amplification, it is converted into a high-precision digital signal, and transmitted to the display instrument electrically connected to the communication socket 508 through the communication socket 508, and the pressure digital signal can be directly displayed.
  • the pressure port 505 is disposed on the micro high precision pressure module in the same direction as the communication socket 508.
  • the communication socket 508 includes a guiding structure (see FIG. 33), which forms a guiding connection with the external interface to prevent circuit failure caused by improper plugging.
  • the two captive screws 506 are symmetrically disposed on the bottom surface of the thicker side of the base 501, so that the pressure module is integrally fastened to the calibration device or the pressure gauge.
  • a seal 504 at the connection of the pressure port 505 causes the surface of the connection device or pressure gauge to form a seal with the line at the location of the pressure port 505.
  • the base cover 503 has an inverted U-shaped structure, and the bottom shape of the side wall is matched with the shape of the top of the side wall of the base, and the base cover 503 is pressed against the side wall of the base 501, and The base cover 503 is spaced apart from the first circuit board 502 by a distance between the base 501, the communication socket 508 and the base cover 503.
  • the base cover 503 is provided with a vent 511, and the base cover 503 is located inside.
  • a waterproof gas permeable membrane 510 is disposed at the vent 511, and the gas permeable membrane is ventilated and waterproof and dustproof.
  • the above structure enables the IP67-level waterproof and dustproof seal to be formed in the cavity formed by the base cover 503 and the base 501, and protects the pressure sensor 507 and the circuit board 502 while maintaining ventilation, ensuring that the contrast pressure of the pressure sensor 507 is atmospheric pressure, thereby ensuring pressure measurement.
  • the accuracy is a measure of the accuracy of the IP67-level waterproof and dustproof seal.
  • the structure of the differential pressure module and the absolute pressure module/gauge module are basically the same, except that the pressure sensor of the differential pressure module is installed in the mounting groove of the base 501, and the upper end is provided by the base.
  • the cover 503 is pressed by a screw 513; the bottom of the mounting groove of the base 501 is provided with a first through hole and a second through hole, and the pressure interface 505 and the pressure reference interface 514 are respectively installed, and the pressure interface 505 and the pressure reference interface 514 are respectively installed.
  • a seal ring 504 is provided.
  • the differential pressure module described above can be used to measure the pressure difference between the external pressures of the pressure port 505 and the pressure reference port 514.
  • the pressure interface module 400 can be directly installed in the hand-held automatic pressure calibrator of the present invention after being assembled with the standard pressure module 500.
  • the pressure joint 403, the pressure reference joint 414 and the standard pressure module mount 406 are all exposed to the hand-held automatic In addition to the pressure calibrator, it is convenient for external inspection of pressure gauges and for easy installation, repair or replacement of standard pressure modules 500.
  • the pressure interface module 400 is installed from the inside of the hand-held automatic pressure calibrator, and the standard pressure module mount 406 of the miniature intelligent pressure interface module 400 is aligned with the inclined through hole 031 (see FIG. 3) at the upper end of the lower casing 030.
  • the standard pressure module 500 After being inserted, it is fixed to the lower casing 030 of the hand-held automatic pressure calibrator by screws through the mounting hole 427 of the joint seat 402, and then the standard pressure module 500 is passed from the bottom to the standard pressure module mount 406 through the inclined surface.
  • the through hole 031 is inserted into the pressure interface module 400.
  • the type of standard pressure module 500 that needs to be inserted depends on the type of pressure gauge to be inspected. For example, an absolute pressure module is required for the verification of the absolute pressure gauge, and a gauge pressure module is required for the calibration of the gauge pressure gauge. Correct A differential pressure module is required for the differential pressure meter to be calibrated.
  • the pressure interface 505 of the differential pressure module is inserted into the module pressure interface 416 of the connector block 402, and the pressure reference interface 514 is inserted into the module pressure reference interface 417, and the differential pressure module.
  • the sealing ring 504 forms a seal to the interface connection, and the communication plug 412 on the connector socket 402 is inserted into the communication socket 508 of the differential pressure module, and the first circuit board 502 of the differential pressure module and the second connector 402
  • the circuit board 405 is electrically connected, and the non-removal screw 506 of the differential pressure module fixes the differential pressure module on the joint base 402 to realize the connection between the differential pressure module and the interface module air circuit and the circuit.
  • the pressure reference end of the differential pressure gauge is then connected to the pressure reference joint 414, the pressure end is connected to the pressure joint 403, and the controlled air pressure is accessed from the pneumatic input interface 415.
  • the first circuit board 502 of the standard pressure module 500 (differential pressure module), the first electromagnetic valve 409 inside the joint 402, and the second circuit board 405 of the second electromagnetic valve 410 are connected to the interface circuit board. 600, and the interface board 600 is electrically connected to the main control board 700, and the differential pressure meter can be verified.
  • the working process of the pressure interface module 400 and the standard pressure module 500 is as follows:
  • the second electromagnetic valve 410 is controlled to be opened, that is, the second electromagnetic valve first ventilation hole 425 is disconnected from the second electromagnetic valve second ventilation hole 426; the first electromagnetic valve 409 is controlled to be opened, that is, the first electromagnetic
  • the valve first vent 423 communicates with the first solenoid valve second vent 424, and the pneumatic input port 415 does not perform pressure input because the pressure reference interface 514 and the pressure port 505 are in communication, and the differential pressure is 0, and the differential pressure zero is found.
  • the pressure reference end of the differential pressure meter is consistent with the pressure of the pressure end, and the zero point calibration of the pressure gauge to be inspected can be performed; the first electromagnetic valve 409 and the second electromagnetic valve 410 are controlled to be closed, and the gas is input through the air pressure input interface 415.
  • the liquid separation chamber 407 and the pressure end of the pressure gauge to be inspected are pressurized, and when there is a certain pressure in the final stage of the pressure release process, the second electromagnetic valve 410 is opened, and the liquid and the like flowing back along with the instrument to be inspected are discharged into the gas-liquid separation chamber 407.
  • the proof of the pressure value of the pressure gauge to be inspected is realized, and the pressure is adjusted according to the pressure value of the standard pressure module to achieve calibration.
  • the pressure-inserting module (or the pressure gauge module, the absolute pressure module and the gauge pressure module have only one pressure interface 505, and the absolute pressure module is taken as an example here), the pressure interface 505 of the absolute pressure module.
  • the sealing ring 504 of the absolute pressure module forms a seal to the interface connection, and the communication plug 412 on the connector block 402 is inserted into the communication socket 508 of the absolute pressure module.
  • the first circuit board 502 of the pressure module is electrically connected to the second circuit board 405 on the connector block 402.
  • the non-removing screw 506 of the absolute pressure module fixes the absolute pressure module to the connector block 402 to implement the absolute pressure module and the pressure interface module.
  • the pressure end of the tested absolute pressure gauge is then connected to the pressure connection 403 and the pressurized gas is accessed from the pneumatic input interface 415.
  • the first circuit board 502 of the standard pressure module 500 (absolute pressure module) is further The first solenoid valve 409 inside the connector socket 402 and the second circuit board 405 of the second solenoid valve 410 are connected to the interface circuit board 600, and the interface circuit board 600 is electrically connected to the main control circuit board 700, so that the absolute pressure meter can be performed. Verification. Its working principle is as follows:
  • the first solenoid valve 409 and the second solenoid valve 410 are both closed, that is, the first solenoid valve first vent hole 423 is disconnected from the first solenoid valve second vent hole 424, and the second solenoid valve first vent hole 425 is second.
  • the second venting hole 426 of the solenoid valve is disconnected, so that the gas-liquid separation chamber 407 is disconnected from the pressure reference chamber 408, and the air pressure is input to supply and pressurize the gas-liquid separation chamber 407, and the pressure release process has a certain pressure in the final stage.
  • the second electromagnetic valve 410 When the second electromagnetic valve 410 is opened, the liquid and the like returned by the instrument to be inspected are discharged out of the gas-liquid separation chamber 407, and the comparison between the absolute pressure module and the absolute pressure meter is realized, and according to the pressure value of the standard pressure module.
  • the supply pressure is adjusted to achieve calibration.
  • Interface circuit board 600 and main control circuit board 700 are interface circuit board 600 and main control circuit board 700
  • the interface circuit board 600 is a circuit board of the air circuit component and transfers the power source, the battery, and the main control circuit board 700.
  • the interface circuit board 600 is a special-shaped board, and is provided with an interface circuit board plug 601 (for connecting the main control circuit board 700) and a gas distribution module socket 602 (for connecting the micro intelligent air distribution module connecting circuit).
  • a control module socket 603 for connecting the micro smart gas control module connection circuit 301
  • a battery plug 604 for connecting the rechargeable battery 900
  • an interface module socket 606 micro smart for connecting the micro intelligent pressure interface module 400
  • the pressure interface module is connected to the circuit 401).
  • the interface circuit board 600 is located at the lower part of the front side of the lower case 030 (defined as the direction of the calibrator of FIG. 1), and the lower case 030 is further provided with a plurality of holes for circuit connection, the micro intelligent valve module connection circuit 201 and the micro smart
  • the gas control module connection circuit 301 is connected to the gas distribution module socket 602 and the control module socket 603 on the interface circuit board 600 through respective holes.
  • Each of the pneumatic components (shown in FIGS. 11-13) is connected to the interface circuit board 600.
  • the interface circuit board 600 is connected to the main control circuit board 700 through the interface circuit board plug 601.
  • the main control circuit intelligently controls the air path through the interface circuit board 600.
  • the micro intelligent intelligent gas distribution module connecting circuit 201 of the micro intelligent gas distribution module 200 and the micro intelligent gas control module connecting circuit 301 of the micro intelligent gas control module 300 are respectively connected to the interface circuit through the hole slots at the bottom of the bottom of the middle groove of the lower casing 030.
  • the gas distribution module socket 602 and the control module socket 603 on the board 600; the miniature intelligent pressure interface module connection circuit 401 of the micro intelligent pressure interface module 400 are inserted into the interface module socket 606 and connected to the interface circuit board 600.
  • the main control circuit board 700 is a circuit integrated board, and is integrally mounted on the inner side of the upper casing 010 (below the upper casing 010 in FIGS. 2 and 3).
  • a support frame 050 is disposed between the main control circuit board 700 and the interface circuit board 600.
  • the support frame 050 is fixed to the inner side of the upper casing 010 together with the main control circuit board 700 and the touch display screen 800.
  • the interface circuit board 600 is fixed to the main body through the support frame 050. Below the control board 700.
  • the main control circuit board 700 is provided with a display socket 705, a touch screen socket 706 (displayed in a display screen and a touch screen in the touch screen 800, respectively), and a module interface socket 704 (for connection). Extended temperature, pressure, etc.
  • USB interface and DC interface combination socket 707 for connecting interface circuit board 600, interface circuit board plug 601 and interface circuit board socket 703 plug-in connection
  • core circuit board 701 central control unit, installed commercial system control software and pressure verification supporting software
  • memory 711 micro switch 712, which also includes a measuring circuit 709 (for connecting an external electrical measurement interface), the measuring circuit 709 is located in front of the control circuit board 700 (the front side of the calibrator is used upwards, that is, the left side of FIG. 2, FIG. 3);
  • the measuring circuit 709 is designed for the calibrator to simultaneously realize the electrical signal and the measuring function of the electrical signal related to the pressure output, and is used in conjunction with an external electrical measuring interface.
  • the external electrical measurement interface is three cylindrical external electrical measurement interfaces 022, which are mounted on an electrical measuring port pressure plate 021, and the external electrical measurement interface is passed through the electrical measuring port pressing plate 021.
  • the 022 is pressed into the measuring socket 012 of the front end surface of the upper casing 010; the outer surface of the cylindrical measuring surface of the external electrical measuring interface 022 has a step surface and a latch 028, and a sealing ring 029 is arranged in front of the step surface (see Figs. 6 and 7).
  • the electrical measuring interface 022 forms a seal with the measuring jack 012; the mounting depth of the external electrical measuring interface 022 is limited behind the stepped surface, and the latch 28 is mounted in a recess of the electrical measuring port pressing plate 021, facing the outside
  • the electrical measurement interface has an anti-rotation effect.
  • the measuring circuit 709 of the main control circuit board 700 is soldered with a spring piece 713.
  • the elastic piece 713 is fixed to the external electrical measuring interface 022 by screws.
  • the end surface of the external electrical measuring interface 022 is provided with a square groove 3055, and the elastic piece 713 The card is mounted in the groove 3055.
  • the groove 3055 prevents the elastic piece 713 welded to the measuring circuit 709 from rotating together with the fastening nail, thereby protecting the elastic piece and measuring The role of the solder joint at the junction of circuit 709.
  • the DC interface 023 and the USB interface 024 are soldered to a connection circuit board 020, and the connection circuit board 020 is inserted into the USB interface of the main control circuit board and the combination socket 707 of the DC interface, and is fixed to the electric measurement port pressure plate 021 by screws;
  • the DC interface 023 and the USB interface 024 expose the calibrator from the external electrical interface mounting hole 015 on the left side of the upper casing 010.
  • two additional module interfaces 025 are attached, which are fixed to a mounting plate 027, and the mounting plate 027 is fixed to the right side of the upper casing 010 by screws (using the calibrator)
  • the direction of the external electrical interface is installed in the hole 015 position and exposed to the outside of the calibrator.
  • the data line connection of the touch display 800 is inserted into the display socket 705 and the touch screen socket 706.
  • the main control board 700 presses the touch display 800 and the touch screen bracket 801, and is mounted together with the touch display 800 and the touch screen bracket 801.
  • the inner casing through hole 013 of the upper casing 010; the micro switch 712 on the main control circuit board 700 is in contact with the power button 014, and the power button 014 operates the micro switch 712 to realize the on/off operation of the calibrator.
  • the main control circuit board 700 is also provided with a WiFi module and a Bluetooth module.
  • the external communication interface connected to the main control circuit board is provided with a USB interface, and the calibrator can perform data and report by wireless or wired communication. Import, export, DC interface to power the calibrator or charge the rechargeable battery.
  • An extended function interface and an external electrical interface are reserved on the main control circuit board 700, and external pressure, temperature and other modules can be connected from the interface, and the calibration function of the calibrator of the present invention is expanded to collect other required parameters, and the extension is extended.
  • the calibrator's pressure range to the outside of the local pressure generation capability.
  • a communication module 1000 is further connected to the main control circuit board 700, and the communication module 100 is connected to the database 3000 through the network 2000.
  • the communication module 1000 completes the data interaction between the main control circuit board 700 and the remote database 3000, and has a remote communication function.
  • the implementation form may be a communication program integrated in the main control circuit board 700.
  • the main control circuit board 700 is provided with a network interface to access the network 2000, or may be an independent hardware module, for example, the communication module 1000.
  • the utility model has a connection plug and a network interface, and the connection plug is used for coupling with the main control circuit board 700 to realize a mechanical connection and an electrical connection between the communication module 1000 and the main control circuit board 700.
  • the network interface is connected to the network 2000 through the network. 2000 accesses the database 3000, wherein the network 2000 is an Internet-based industrial Ethernet, and may also be another wireless network that supports an Internet connection, and can implement a remote communication function.
  • the communication module 1000 is integrated inside the calibrator, so that the calibrator has a remote communication function, and the intermediate communication medium is omitted. As long as it is connected to the network it supports, it can be connected to the remote database 3000 through simple settings, and can be real-time. Download the pre-stored basic information of the pressure gauge from the database (including the range, accuracy, ID number and manufacturer's information of the pressure gauge to be inspected), and the historical calibration data of the pressure gauge to be inspected (including the pressure indication values of all pressure calibration points).
  • pressure indication error or pressure indication of all pressure calibration points pressure indication error or pressure indication of all pressure calibration points
  • pressure indication error, current value, current indication error, etc. calibration scheme (including automatic calibration procedure for performing calibration operation) to achieve calibration of the pressure gauge to be inspected
  • the data is automatically generated and the calibration data is uploaded to the database 3000 in real time via the network 2000.
  • the main control board 700 can also be electrically connected to a camera assembly including a camera 4000, a camera 5000 disposed on the camera 4000, and an image recognition program implanted in the main control board 700, the camera being directly facing
  • the front appearance of the pressure gauge to be inspected can capture the data, model information and appearance characteristics displayed on the dial of the pressure gauge to be inspected, and the photograph taken is transmitted to the main control board 700 via the camera 4000, and is pre-implanted into the main
  • the image recognition program in the control board 700 performs image recognition on the photograph taken, thereby obtaining the model of the pressure gauge to be inspected and the basic information of the pressure gauge to be inspected, for example, the range, precision, number, and manufacturer of the pressure gauge being inspected.
  • the communication module 1000 can be controlled to be transmitted to the remote database 3000 through the main control circuit board 700.
  • the rechargeable battery 900 is provided with rail grooves 901 on both sides, a battery socket 902 in the middle, and a battery recess 903 at the rear.
  • the middle of the lower casing 030 is provided with a groove 032, and the front side of the groove is provided A through hole is arranged, and a through hole is arranged at a rear of the bottom of the groove;
  • a battery mounting rail 034 is disposed at two sides of the lower shell, a groove 033 is disposed in the middle of the rail, a through hole is arranged at the bottom of the groove, and a battery of the interface circuit board 600 is provided
  • the plug 604 is exposed from the through hole at the bottom of the groove;
  • the rear portion of the lower case is provided with a T-shaped groove 035, the T-shaped end of the T-shaped groove 035 is communicated to the rear side of the lower case, and the T-shaped groove 035 is provided with a rotatable T-shape.
  • the rail slot 901 on both sides of the battery is inserted into the battery mounting rail 034 on the rear side of the lower casing to fix the battery in the left and right direction; after pushing the battery to the limit forward, the rail fixes the battery in the up and down direction, the battery socket 902 and the battery on the interface circuit board
  • the plug 604 is connected; after the cylindrical portion of the T-shaped battery lock button is rotated 180° from the rear of the middle cover, the semicircular protrusion of the semi-cylindrical portion is rotated from the lower case T-shaped groove 035 to the battery recess 903, so that the rechargeable battery 900 is fixed in the front-rear direction.
  • the final battery is fixed and pressed against the end face of the lower cover 040.
  • the rechargeable battery is a large-capacity battery that can be powered for a long time and is convenient for on-site calibration.
  • the electrical measurement interface 022 is fixed in the measurement socket 012 of the upper casing 010, and the touch display screen 800 is connected to the main control circuit board 700, and is placed inside the upper casing 010, and the elastic piece 713 is connected to the electrical measurement interface 022, and the interface circuit board is connected.
  • 600 is fixed on the lower side of the main control circuit board 700, and the micro intelligent pressure interface module 400 is located on the inner side of the main control circuit board 700 and is fixed on the inner side of the upper casing 010, and the connection circuit board 020 and the module are installed on the left and right sides of the upper casing 010.
  • the interface 025, the upper and lower casings 030, the standard pressure module 500 is mounted on the micro intelligent pressure interface module 400 through the through hole 031 of the lower casing 030, and the gas path of the standard pressure module 500 and the pneumatic circuit of the micro intelligent pressure interface module 400
  • the interface is docked; the micro-intelligent pressure control module 300 is mounted on the rear side of the lower casing 030, and the control module pressure connector 302 of the micro-intelligent pressure control module 300 is connected to the pressure input port of the micro-intelligent pressure interface module 400; and the micro-intelligent gas distribution module 200 is stacked.
  • connecting the instrument to be inspected including the pneumatic connection, and further comprising connecting the electrical signal output end of the inspected table through the electrical measurement interface 022;
  • the micro air pump 100 is started, and the pressurized gas or vacuum is output according to the set pressure to the air volume 234/236 of the micro intelligent gas distribution module 200;
  • the micro intelligent pressure control module 300 pressures the air volume of the micro intelligent gas distribution module 200 on the one hand or Vacuum measurement, when the required pressure is reached, the micro air pump 100 is controlled to stop supplying air; on the other hand, the output of the micro intelligent pressure interface module 400 is adjusted according to the pressure value given by the standard pressure module 500 by the intake or exhaust control solenoid valve. Pressure to reach the set pressure;
  • the touch display screen adopts a user-friendly interface for human-computer interaction operation, thereby reducing the learning difficulty of the user; the user performs all the verification processes of the calibrator from the touch display interface.
  • the circuit system of the hand-held automatic calibrator is operated from the touch screen to realize the intelligent control of the circuit system and the pneumatic system.
  • the intelligent pneumatic system is controlled to realize the power supply and electrical signal detection of the circuit of the circuit to be inspected by the circuit system.
  • the electric signal debugging and processing realizes the intelligent pressure building, gas distribution, pressure control, pressure relief and sewage discharge of the pneumatic system.
  • the main control circuit board can also record the electrical signals, pressure signals and calibration data from various parts, calculate the verification result, store the verification record and output the verification report. It has the following characteristics:
  • the hand-held automatic calibrator adopts a modular design.
  • the calibrator housing is integrated with air circuit components and circuit components.
  • the rechargeable battery is installed from the outside of the housing.
  • the pneumatic components consist of a miniature intelligent gas distribution module (including a micro air pump), a miniature intelligent pressure control module, a miniature intelligent pressure interface module, and a standard pressure module.
  • the circuit components are composed of a touch display screen, a main control circuit board, an interface circuit board, an external electrical measurement interface, and an external electrical interface.
  • the components are modular in design, easy to replace, easy to repair and maintain.
  • the whole body is light and convenient, and the hand-held is convenient and comfortable.
  • the whole machine is small in size and light in weight, suitable for hand-held, convenient to carry, and convenient for on-site calibration work.
  • the side surface of the upper shell of the casing and the side surface of the lower shell are designed by wrapping elastic material, and the elastic material is transferred to the upper upper inclined surface of the upper shell, the lower front inclined surface of the lower shell and the through hole of the inclined surface, and the shell and the inclined surface through hole are installed during installation. Form a seal between the mounting parts.
  • the upper shell is combined with the lower shell and the lower cover to adopt a tenon design to ensure the sealing of the housing, and the circuit component and the pressure interface module of the pneumatic component are installed between the upper shell and the lower shell.
  • a through hole is formed in the front slope of the upper shell, a square through hole is arranged on the upper side for mounting the touch display screen, a circular hole is arranged in the front of the square through hole for installing the external electrical measurement interface, and a power button mounting hole is arranged behind the square through hole, the power source
  • the flange of the button is pressed tightly with the mounting hole of the power button of the upper casing to form a seal
  • the outer casing is provided with a mounting hole for the external electrical interface.
  • the mounting hole is sealed with a waterproof cover after the external electrical interface is installed. The sealing of each part of the housing enables the hand-held automatic calibrator of the present invention to form a higher level waterproof and dustproof seal.
  • the periphery of the touch screen is sealed by a waterproof foam and a square hole, and then stacked with the touch screen bracket from the upper case.
  • the inner side is installed in the groove around the rectangular hole of the upper casing.
  • the main control circuit board is provided with a display socket, a touch screen socket, a module interface socket, a combination socket of a USB interface and a DC interface, and a control circuit board socket.
  • the main control circuit board presses the touch display screen, the micro switch on the interface circuit board is in contact with the power switch, and the power switch realizes the on/off operation by operating the micro switch;
  • the main control circuit board is also provided with a Bluetooth module, a Wifi module, and a core circuit board.
  • a support frame is arranged between the main control circuit board and the interface circuit board, and the support frame is fixed in the upper case together with the main control circuit board and the touch display screen; the interface circuit board is fixed by the support frame and the main control circuit board; at the same time, the interface circuit The board is connected to the main control board through the interface board plug.
  • the main control circuit board contains the measurement circuit, and the external electrical measurement interface is connected to the measurement circuit; the external electrical interface, the touch display screen, and the interface circuit board are all connected to the main control circuit board; the micro intelligent gas distribution module (including the micro air pump) and the micro The intelligent pressure control module and the micro intelligent pressure interface module form a modular intelligent pneumatic system.
  • the components of the modular intelligent pneumatic system are connected to the interface circuit board, and the interface circuit board is inserted and connected with the main control circuit board.
  • the touch display adopts a user-friendly interface for human-computer interaction operation, which reduces the learning difficulty of the user; the user performs all the verification processes of the calibrator from the touch display interface.
  • the circuit system of the hand-held automatic calibrator is operated from the touch screen to realize the intelligent control of the circuit system and the pneumatic system. Through the circuit system, the intelligent pneumatic system is controlled to realize the power supply and electrical signal detection of the circuit of the circuit to be inspected by the circuit system.
  • the electric signal debugging and processing realizes the intelligent pressure building, gas distribution, pressure control, pressure relief and sewage discharge of the pneumatic system. Complete the verification of the pressure and electrical signals of the instrument.
  • the main control circuit board can also record the electrical signals, pressure signals and calibration data from various parts, calculate the verification result, store the verification record and output the verification report.
  • the external electrical measurement interface and the circular hole on the upper casing are sealed by a sealing ring, and are connected to the measuring circuit of the main control circuit board through the elastic piece, and the elastic piece is stuck under the external external electrical testing interface.
  • the electric measuring jack has a rotation stop function.
  • the external external electrical measurement interface is connected to the main control circuit board, it is installed in the circular hole above the upper casing through the mounting seat.
  • the USB interface and the DC interface are connected to the connection circuit board on the voltage measuring board of the electric measuring port, the USB interface and the DC interface of the main control circuit board are inserted into the combined socket, and the hole is installed from the side of the upper cover to the outside of the calibrator.
  • the two module interfaces are mounted to the other side of the upper cover, and the side mounting holes are exposed to the outside of the calibrator, and the circuits are connected together to the module interface sockets on the main control circuit board.
  • the two side mounting holes are sealed by a waterproof cover.
  • the Wifi module and the Bluetooth module set on the main control circuit board are connected with the USB communication interface on the external communication interface of the main control circuit board.
  • the calibrator can use the wireless or wired communication method to import and export data and reports, and the DC interface.
  • the calibrator can be powered or charged for a rechargeable battery.
  • Two module interfaces to the main Control circuit board, connecting external pressure, temperature and other modules from the interface module to expand the calibration function of the calibrator of the present invention, and other required parameter acquisition, expanding the pressure range range of the calibrator of the invention to the local pressure generating capability range outer.
  • the interface circuit board is provided with a gas distribution module socket, a control module socket, an interface module socket, a battery plug, and a test socket. Each gas path component is connected to a control module, and the control module intelligently controls the gas path.
  • the interface module is installed into the upper casing through the hook-type fixing base, and the pressure interface and the pressure reference interface extend from the through-hole through-hole of the upper casing to the calibrator, and the standard pressure module mounting seat cooperates with the through-hole of the lower cover in front of the lower cover, from the front of the lower casing
  • the beveled through hole can be replaced with a standard pressure module.
  • the invention can replace the standard pressure modules of different precisions, different ranges and different types (absolute pressure, differential pressure, gauge pressure) installed on the pressure interface module. Realize the verification of different pressure gauges.
  • the micro intelligent air distribution module of the pneumatic component and the micro intelligent pressure interface module are installed between the lower shell and the lower cover.
  • the groove 2 provided at the rear of the lower case enables the battery plug of the interface circuit board to be exposed from the through hole at the bottom of the groove.
  • the micro intelligent gas distribution module is inserted into the micro-intelligent pressure control module and installed in the middle groove of the lower shell; the circuit of the micro intelligent gas distribution module and the micro intelligent pressure control module are respectively connected through the through holes at the bottom of the bottom of the middle cover of the lower cover To the main control circuit board; the connector on the micro intelligent pressure control module is inserted into the air source interface of the micro intelligent pressure interface module through the through hole on the front side of the middle groove of the lower case to supply air to the interface.
  • the inner surface is pressed against the sealing cushion on the micro intelligent gas distribution module to form a seal.
  • the suction hole and the exhaust hole on the lower cover are respectively connected to the two shaped through holes on the sealing cushion.
  • the battery mounting rails are arranged on both sides of the lower part of the lower shell, and the rails are arranged on both sides of the rechargeable battery.
  • the rails and the rail slots are inserted to fix the battery in the left-right direction and the up-and-down direction; the battery lock button and the lower shell T-shaped groove are The battery groove fits to fix the rechargeable battery in the front-rear direction.
  • the present invention is a hand-held automatic calibrator, which is small in size and light in weight, and is suitable for hand-held, and is suitable for carrying to the instrument service site for verification work.
  • the touch display screen adopts a user-friendly interface for human-computer interaction operation to reduce the learning difficulty of the user; the user performs all the verification processes of the calibrator from the touch display interface.
  • (3) can achieve intelligent pressure, gas distribution, pressure control, pressure relief, to meet the verification of absolute pressure gauges, differential pressure gauges, gauge pressure gauges.
  • the main control board can record the electrical signal of the electrical signal or the pressure signal, compare it with the standard signal, calculate the verification result, and obtain a verification report.
  • the Wifi module and the Bluetooth module are arranged on the main control circuit board, and the external electrical measurement interface connected to the main control circuit board is provided with a USB interface, and the data and report can be imported and exported to the calibrator.
  • the external electrical measurement interface is provided with two module interfaces, which can expand the calibration function range of the calibrator of the invention to the temperature verification, and expand the calibration range range of the pressure and electric signals of the calibrator of the invention to Outside the rated range.
  • the hand-held automatic calibrator of the invention has a rechargeable, large-capacity electric power supply battery, which can sustain power supply for a long time, and is convenient for on-site calibration work.
  • the invention provides a hand-held automatic pressure calibrating instrument, which integrates the components of the pneumatic circuit component and the components of the circuit component into a casing in a modular manner, and has a compact structure and can be industrially manufactured.
  • the pressure calibrator Small size, light weight, suitable for handheld, can be carried to the instrument service site for calibration work, suitable for industrial applications.

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Abstract

一种手持全自动压力校验仪，包括壳体以及装配在壳体中的气路部件和电路部件，气路部件包括能够提供压力气体的压力源，气路部件、电路部件以模块方式集成装配于壳体内，外形适于手持。压力校验仪能实现压力发生、压力控制、压力仪表连接、压力校验过程记录、结果运算和报告输出全部功能，适于对现场在线压力仪表的校验。

Description

一种手持全自动压力校验仪 技术领域
本发明属于压力仪器仪表计量校准领域，涉及一种能够自动压缩空气而产生压力气体、自动完成气体压力控制、模块化装配的小型手持全自动压力校验仪，可通过更换标准压力模块，用于现场对多种量程、不同精度的压力仪表进行校准校验。
背景技术
工业生产、压力测量等领域中所使用的压力仪表需要进行定期校验，以保证压力仪表检测压力的准确性，保证压力设备在安全范围内使用。
随着工业自动化迅速发展，生产过程中的压力仪表也逐步向数字化和电器化转变。为能对服役中的压力仪表进行校验，很多压力仪表安装时通常在压力管路设有压力校验接口和转换阀，以便能够在对压力仪表不进行拆卸的情况下，在现场完成服役压力仪表的校验。
现有的压力校验仪一般包括气路部件，气路部件包括能够提供压力气体的压力源。在压力仪表服役现场完成压力仪表的校验过程，例如，通常由压力发生装置压缩介质来为校验过程提供满足使用要求的连续变化压力，并要对产生的压力进行控制以稳定在某一需要的具体压力值；通过连接装置将压力发生装置、压力控制单元与标准压力仪表、现场被检压力仪表连接组成测试***，通过该测试***进行现场压力仪表的校验；手工书写记录标准压力仪表和被检压力仪表的对比压力值，并就对比压力值进行计算，确定被检压力仪表在不同压力值的误差范围，最后再确定合格情况，生成检验报告存档并发送给用户。
因此，通常这样的现场校验过程，需要有配套的压力发生装置、压力介质连接传输装置、压力数据处理装置等多个装置或仪器进行配合，才能够完成一次压力仪表的校验工作。而工业中，压力仪表的服役地点比较复杂，甚至是在高空、空间狭小位置或者高度污染的石油或化工行业，上述多个仪器联用的方式不可用。为减轻校验员的负担，提高校验过程的可操作性，需要对校验设备进行便携甚至手持的小型化设计。
目前还没有一款手持型校验产品能完全实现压力发生、压力控制、压力仪表连接、压力校验过程自动记录、结果运算和报告输出的全部功能。
发明内容
本发明的目的是为了解决上述问题，提供一种能够实现压力发生、压力控制、 压力仪表连接、压力校验过程记录、结果运算和报告输出的全部功能的手持全自动压力校验仪。
本发明的上述目的是由以下解决方案来实现的：
一种手持全自动压力校验仪，包括壳体以及装配在壳体中的气路部件和电路部件，所述气路部件包括能够提供压力气体的压力源，所述气路部件的各组成部分、电路部件的各组成部分以模块方式集成装配于所述壳体内，且校验仪整体外形适于手持。
其中，所述气路部件的组成部分包括有：组合有微型气泵(100)的微型智能配气模块(200)，其为压力校验仪提供增压气体和真空，其中所述微型气泵(100)用作所述压力源；微型智能压力控制模块(300)，其控制和调节来自微型智能配气模块(200)的增压气体和真空；标准压力模块(500)，其为压力校验仪提供基准压力；和微型智能压力接口模块(400)，其连接所述微型智能压力控制模块(300)和标准压力模块(500)；
所述微型智能配气模块(200)的正压连接头(240)和真空连接头(245)与微型智能压力控制模块(300)对应的压力气体接口(72)和真空接口(80)插装并连通,微型智能压力控制模块(300)的控制模块压力接头(302)连通微型智能压力接口模块(400)的气压输入接口(415),标准压力模块(500)的气路接口与微型智能压力接口模块(400)的气路接口对接。
其中，所述电路部件包括有：用于连接气路部件的各电路的接口电路板(600)、用于整机运行控制的主控电路板(700)，用于输入、输出的触摸显示屏(800)以及对外电测插孔(22)和外部电器接口安装孔(015)，电路部件的电路以及可充电电池(900)与主控电路板(700)电连接。
其中，所述壳体包括上壳(010)、下壳(030)和下盖(040)；上壳(010)和下壳(030)扣合形成适于手持的校验仪主体，主体内部空间中装配有所述微型智能压力接口模块(400)、标准压力模块(500)、主控电路板(700)、接口电路板(600)和触摸显示屏(800)；下盖(040)安装于下壳(030)外侧的上部，下盖(040)与下壳(030)形成的内部空间中装配有微型智能配气模块(200)和微型智能压力控制模块(300)；可充电电池(900)装配于下壳(030)外侧的下部。
所述上壳(010)为上大下小的楔形盖，上部端面为斜面，该斜面上设有通孔一(011)用于装配微型智能压力接口模块(400)上的压力接头(403)和压力参考接头(414)并使其露出壳体；上壳(010)向外的平面设置有一个用以容纳触 摸显示屏(800)的方形通孔(013)；方形通孔(013)上方设置有三个圆形对外测量插孔(012)，下方有一个圆孔用于安装电源按钮(014)；上壳(010)左右两侧设置有外部电器接口安装孔(015)；
下壳(030)为上大下小的楔形托，其上部端面为斜面，该斜面上有通孔二(031)用于安装微型智能压力接口模块400的标准压力模块安装座406)；
上壳(010)周边缘端与下壳(030)结合处设有凹槽(018)，对应下壳(030)周边缘端与上壳(010)结合处设有凸楞(036)，凸楞(036)与凹槽(018)密合。
本发明还提供一种用于所述手持全自动压力校验仪中的微型智能配气模块。该微型智能配气模块(200)包括微型气泵(100)和气源端块(280)，其中，气源端块(280)与微型气泵(100)相连接并气路连通，微型气泵(100)内设有吸入外界气体的一级吸气管路(114)和输出压力气体的二级排气管路(122)，气源端块(280)设有正压气容(234)和真空气容(236)，两气容和微型气泵(100)的两管路(114、122)连通并通过设于气源端块(280)中的微型电磁阀即V1阀、V2阀和V3阀控制。
其中：气源端块(280)包括阀岛(230)，阀岛内部分隔设置有两个较大容腔分别用作正压气容(234)和真空气容(236)，容腔顶部用顶盖(246)密封；阀岛内部分隔设置有三个较小容腔分别放置所述V1阀、V2阀和V3阀，正压气容(234)、真空气容(236)和三个电磁阀之间通过管路连接。
本发明还提供一种缸体导向微型增压式电动气泵，可用于手持全自动压力校验仪中作为微型气泵(100)，其包括泵体座(108)、与泵体座连接的电机座(102)及电机、由电机带动的偏心轴(104)、与偏心轴连动的连杆(105)、一级缸体(1081)、二级缸体(106)、穿设在一级缸体和二级缸体之中与连杆同步移动的活塞杆(110)以及设于两缸体外端的多个单向阀。
其中：所述泵体座(108)的两端形成一级缸体(1081)和二级缸体支撑座(1082)，二级缸体(106)装配于二级缸体支撑座(1082)内侧且与一级缸体(1081)同轴线；二级缸体(106)体积小于一级缸体(1081)的体积，且一级缸体(1081)的一级排气管路(117)与二级缸体(106)的二级吸气管路(120)连通；
活塞杆(110)两端设活塞一级端(1101)和活塞二级端(1102)，活塞一级端与一级缸体(1081)配合，活塞二级端伸入二级缸体(106)内与二级缸体配合。
所述二级缸体(106)为中空柱体，柱体内表面设有垂直于二级缸体(106)轴向的第一台阶面(1062)，第二组合密封件(107)装配于该第一台阶面(1062) 处，泵体座(108)的侧面抵顶该第二组合密封件(107)；
所述第一台阶面(1062)使得所述二级缸体(106)的内表面形成彼此连通的第一级通孔(1061)和第二级通孔(1066)，第一级通孔(1061)的直径大于第二级通孔(1066)的直径，第一级通孔(1061)的内表面、第一台阶面(1062)以及活塞杆(110)的活塞二级端(1102)外表面共同形成一环形凹槽，该环形凹槽中放置第二组合密封件(107)；泵体座(108)与二级缸体(106)连接处设有一对相互对应的凸出部(1083)用于抵挡第二组合密封件(107)。
其中：所述二级缸体(106)的外表面至少设有第二台阶面(1063)，一密封圈抵接于该第二台阶面(1063)，电机座(104)的侧面抵顶该密封圈；或者，
所述二级缸体(106)的外表面设有第三台阶面(1064)和第四台阶面(1065)两级台阶，第三台阶面(1064)距离二级缸体(106)的中心轴距离小于第四台阶面(1065)距离二级缸体(106)的中心轴的距离，一密封圈(128)抵接于该第三台阶面(1064)，电机座(104)的侧面抵顶该密封圈(128)以及第四台阶面(1065)。
活塞一级端(1101)的端面面积大于活塞二级端(1102)的端面面积，相应的一级缸体(1081)的轴向横截面面积大于二级缸体(106)的轴向横截面面积。
其中：一级缸体(1081)外端依次设有缸体垫(112)、反向装配的一级吸气单向阀(115)和一级排气单向阀(116)以及端盖(113)，一级吸气单向阀(115)和一级排气单向阀(116)与一级缸体(1081)内腔连通，端盖(113)上的一级吸气管路(114)连接外界气体并与一级吸气单向阀(115)相连通，端盖(113)上的一级排气管路(117)与一级排气单向阀(116)相连通，并通过一过渡管路(119)与二级缸体(106)的二级吸气管路(120)连通；
二级缸体(106)外端分设有二级吸气管路(120)和二级排气管路(122)，二级吸气管路(120)入口前安装有用于控制进气的二级吸气单向阀(121)，一级缸体(1081)的一级排气管路(117)通过置于阀岛(130)内的过渡管路(119)和该二级吸气单向阀(121)与二级吸气管路(120)连通；二级排气管路(122)出口安装用于控制出气的二级排气单向阀(123)。
其中，设于气源端块(280)中的V3阀为二位三通电磁阀，其包括V3阀第一通气孔(2331)、V3阀第二通气孔(2332)和V3阀第三通气孔(2333)，其中V3阀第三通气孔(2333)连通至外界大气，V3阀第二通气孔(2332)与微型电泵(100)的一级吸气管路(114)连通，V3阀第一通气孔(2331)通过气流管路一(238)与真空气容(236)连通；
设于气源端块(280)中的V1阀为二位二通电磁阀，其包括V1阀第一通气孔 (2311)和V1阀第二通气孔(2312)，其中V1阀第一通气孔(2311)连通至外界大气，V1阀第二通气孔(2312)与微型气泵(100)的二级排气管路(122)连通；
设于气源端块(280)中的V2阀为二位二通电磁阀，包括V2阀第一通气孔(2321)和V2阀第二通气孔(2322)，其中V2阀第一通气孔(2321)与微型气泵(100)的二级排气管路(122)连通，V2阀第二通气孔(2322)与正压气容(234)连通。
其中：阀岛(230)外表面铺设有一密封缓冲垫(241)，密封缓冲垫开设有第一异形通孔(2411)，第一异形通孔(2411)通过V3阀第三通气孔(2333)与一级吸气管路(114)连通；密封缓冲垫的外侧贴合下盖(040)，下盖(040)与第一异形通孔(2411)对应位置处各设有由多个通气孔组成的吸气通孔(042)，一过滤器(041)设置在第一异形通孔(2411)内；
密封缓冲垫(41)还设有第二异形通孔(2412)，第二异形通孔(2412)通过V1阀第一通气孔(2311)与二级排气管路(122)连通；下盖(040)与第二异形通孔(2412)对应位置处设有由多个通气孔组成的排气通孔(043)。
本发明还提供一种用于手持全自动压力校验仪中的微型智能压力控制模块。该微型智能压力控制模块(300)包括一控制阀岛(61)以及集成到所述控制阀岛上的压力传感器(69)、真空传感器(67)、电路板(63)、进气控制电磁阀(64)、排气控制电磁阀(66)、第四电磁阀(65)、压力气体接口(72)、真空接口(80)以及气道接头，其中：
所述控制阀岛内部设置有由管道孔形成的多个管路；压力传感器(69)和真空传感器(67)均与电路板(63)电连接；述压力气体接口(72)、压力传感器(69)、进气控制电磁阀(64)与气道接头通过所述多个管路连接；所述真空接口(80)、真空传感器(67)、第四电磁阀(65)、排气控制电磁阀(66)与气道接口通过所述多个管路连接。
其中：所述气道接头是由第一接头(81)、连接头(82)和控制模块压力接头(302)依次连接形成，第一接头为中空管状结构，其与连接头的一端连接，连接头的另一端与控制模块压力接头(302)以插装方式连接，第一接头(81)和控制模块压力接头(302)端口内部均设置有密封圈。
其中：所述压力传感器、真空传感器、电路板电连接到一总电路接口，所述进气控制电磁阀、排气控制电磁阀和第四电磁阀通过连接线电连接至所述总电路接口，所述总电路接口连接至接口电路板(600)。
其中：所述进气控制电磁阀和排气控制电磁阀为微型高精度气流控制阀，都设有第一端口和第二端口；第四电磁阀为二位三通电磁阀，设有第四电磁阀第一通气孔(651)、第四电磁阀第二通气孔(652)和第四电磁阀第三通气孔(653)；所述第四电磁阀在断电状态下，第四电磁阀的第四电磁阀第二通气孔(652)和第四电磁阀第三通气孔(653)连通；第四电磁阀处于通电状态下，第四电磁阀第一通气孔(651)和第四电磁阀第二通气孔(652)连通，第四电磁阀第二通气孔(652)和第四电磁阀第三通气孔(653)断开。
所述压力气体接口(72)固定于控制阀岛(61)的一侧，一端位于控制阀岛的表面，与微型智能配气模块(200)的正压连接头(240)对位插装密封连接，压力气体接口(72)的另一端位于控制阀岛的内部，与第一压力管路(73)连通；压力传感器(69)设置有第一端口和第二端口，其第一端口与第一压力管路(73)相连通，其第二端口与第二压力管路(74)相连通；进气控制电磁阀(64)设有第一端口和第二端口，其第一端口与第二压力管路(74)相连通，其第二端口与第三压力管路(75)相连通；第三压力管路(75)与第四压力管路(76)相连通；第四压力管路(76)还分别与排气控制电磁阀(66)的第二端口以及第一接头(81)相连通；
所述真空接口(80)固定于控制阀岛(61)的一侧，一端位于控制阀岛的表面，与微型智能配气模块(200)的真空连接头(245)对位插装密封连接，真空接口的另一端位于控制阀岛的内部，与第一真空管路(78)连通；真空传感器(67)设有第一端口和第二端口，其第一端口与第一真空管路(78)相连通，其第二端口与第四电磁阀的第四电磁阀第一通气孔(651)相连通；第四电磁阀的第四电磁阀第二通气孔(652)与阀后排气管路(77)相连通，第四电磁阀第三通气孔(653)连通至大气；阀后排气管路(77)与排气控制电磁阀(66)的第一端口连接，排气控制电磁阀的第二端口与第四压力管路(76)相连通，第四压力管路与第一接头(81)连接。
本发明还提供用于所述手持全自动压力校验仪中的微型智能压力接口模块。该微型智能压力接口模块(400)包括接头座(402)，接头座用于装配标准压力模块(500)，接头座上设置有压力接头(403)、压力参考接头(414)和气压输入接口(415)，气压输入接口通过位于接头座内的气流管路与压力接头、压力参考接头和标准压力模块相连通，所述压力接头和压力参考接头与外接被测压力仪表连接，其中，所述接头座(402)包括向两个不同方向延伸的第一柱体结构和第二柱体结构，具有三个连接面，即两个柱体结构的交接处设有气压输入连接面，气压 输入接口(415)设置在所述气压输入连接面上；第一柱体结构的端部设有接头连接面，所述压力接头(403)和参考压力接头(414)设置在所述接头连接面上；第二柱体结构的端部设有标准压力模块连接面，所述标准压力模块(500)装配在所述标准压力模块连接面上。
其中：所述接头座(402)内部还设有压力参考腔(408)、气液分离室(407)和第一电磁阀(409)，第一电磁阀布置在所述压力接头(403)和气液分离室之间，压力接头通过第一气流管路(421)和第一电磁阀第二通气孔(424)与气液分离室连通，所述气液分离室直接与气压输入接口(415)连通；气液分离室通过第一电磁阀和第四气流管路(420)与压力参考腔连通，压力参考腔与压力参考接头(414)相连通。
其中：所述气液分离室的外侧通过一放气阀座(404)密封，放气阀座内部设置有第二电磁阀(410)，第二电磁阀的第二电磁阀第二通气孔(426)通过第一气流管路(421)与气液分离室(407)连通，第二电磁阀的第二电磁阀第一通气孔(425)与大气相连通。
其中：所述压力接头(403)和压力参考接头(414)的内部端口位置分别设置有除污过滤器(413)。
其中：所述接头座(402)上的标准压力模块连接面上设置有一模块压力接口(416)和一模块压力参考接口(417)，模块压力参考接口与压力参考腔(408)直接连通，模块压力接口通过一第三气流管路(419)与气液分离室(407)相连通。
其中：所述接头座(402)上的标准压力模块连接面上还安装有标准压力模块安装座(406)，所述标准压力模块安装座为具有L形台阶孔的柱体结构，L形台阶孔较深的一侧与接头座的标准压力模块安装座连接面连接，L形台阶孔较浅的一侧台阶上设置有一通槽，所述通槽上部安装有第二电路板(405)，一通讯插头(412)穿过所述通槽与第二电路板电连接，一插座(411)电连接至所述通讯插头。
其中：所述标准压力模块(500)为差压模块，差压模块从所述标准压力模块安装座(406)中插装至接头座(402)上，差压模块的压力接口(505)插装至接头座的模块压力接口(416)中，压力参考接口(514)插装至模块压力参考接口(417)中，差压模块的密封圈(504)对上述各接口连接处形成密封，接头座上的通讯插头(412)插装至差压模块的通讯插座(508)中，差压模块的第一电路板(502)与接头座上的第二电路板(405)电连接，差压模块的不脱螺钉(506) 将差压模块固定于接头座(402)上；或
所述标准压力模块为绝压模块，绝压模块的压力接口(505)插装至接头座的模块压力接口(416)中，绝压模块的密封圈(504)对上述接口连接处形成密封，接头座上的通讯插头(412)插装至绝压模块的通讯插座(508)中，绝压模块的第一电路板(502)与接头座上的第二电路板(405)电连接，压力模块的不脱螺钉将绝压模块固定于接头座(402)上；或
所述标准压力模块为表压模块，表压模块的压力接口(505)插装至接头座的模块压力接口(416)中，表压模块的密封圈(504)对上述接口连接处形成密封，接头座上的通讯插头(412)插装至表压模块的通讯插座(508)中，表压模块的第一电路板(502)与接头座上的第二电路板(405)电连接，压力模块的不脱螺钉将表压模块固定于接头座(402)上。
本发明手持全自动压力校验仪中，接口电路板(600)分布设置有接口电路板插头(601)用于连接主控电路板(700)，配气模块插座(602)用于连接微型智能配气模块(200)的电路(201)，控制模块插座(603)用于连接微型智能气体控制模块(300)的电路(301)，电池插头(604)用于连接充电电池(900)、接口模块插座(606)用于连接微型智能压力接口模块(400)的电路(401)。
主控电路板(700)上分布设置有显示屏插座(705)、触摸屏插座(706)分别插接触摸显示屏(800)中的显示屏和触摸屏，模块接口插座(704)用于连接扩展的温度、压力等外接模块接口(025)、USB接口(024)和DC接口(023)的组合插座(707)、接口电路板插座(703)用于连接接口电路板(600)，核心电路板(701)以及蓝牙模块(708)、Wifi模块(702)、存储器(711)和微动开关(712)等。
其中：主控电路板(700)上还包含有测量电路(709)用于连接外部电测接口，所述外部电测接口为多个对外电测接口(022)，安装在一电测口压板(021)上，并压紧至上壳(010)前端面的测量插孔(012)内。
其中：主控电路板(700)与接口电路板(600)间通过支撑架(050)连接，支撑架(050)与主控电路板(700)、触摸显示屏(800)整体装配于上壳(010)内侧。
其中：主控电路板(700)上还连接有通信模块(1000)，通信模块(1000)通过网络(2000)连接到数据库(3000)。
其中：主控电路板(700)电连接相机组件，该相机组件包括相机(4000)、设置在相机上的摄像头(5000)以及植入到主控电路板(700)中的图像识别程序， 摄像头正对被检压力仪表的正面外观以拍摄该被检压力仪表的表盘上显示的数据、型号信息及其外观特征。
本发明采取以上设计具有如下特点：
A、本发明是一款手持式的全自动校验仪，体积小、质量轻，适用于手持，涵盖自动产生气体压力、稳定地控制压力、数据记录等多项功能；其携带方便，便于在现场进行校验工作。
B、通过对连接于主控电路板的触摸显示屏操作，实现了人机交互友好界面，降低用户的学习难度；用户通过触摸显示屏界面能完成所有校验过程的操作。
C、本发明自带由微型智能配气模块(包含微型气泵)、微型智能压力控制模块和微型智能压力接口模块组成的模块化智能气路***。模块化智能气路***各部件连接至接口电路板，接口电路板与主控电路***的主控电路板插装连接，通过主控电路***完成对智能气路***的控制，实现智能造压、配气、控压、泄压、排污等操作。
D、本发明可更换安装于压力接口模块上的标准压力模块，使其适应不同精度、不同量程、不同类型(绝压、差压、表压)的被检仪表，实现对不同类型压力仪表的校验。
E、本发明主控电路板包括测量电路部分，校验仪的对外电测接口连接至测量电路部分，可测量被检压力仪表的电流、电压等电信号，由测量电路部分进行信号处理。主控电路板能对来自各部分的电信号进行记录，计算校验结果、储存校验记录和输出校验报告。
F、主控电路板上设置有Wifi模块、蓝牙模块，连接至主控电路板的外部通讯接口上设置有USB接口，校验仪可以采用无线或有线通讯方式进行数据和报告的导入、导出。
G、外部通讯接口上设置有两个拓展模块接口，该模块接口连接至主控电路板，从接口模块处连接外部压力、温度等模块拓展本发明校验仪的校验功能至其它需要参数的采集(如外部压力、温度)，扩展本发明校验仪的压力量程范围及本机压力发生能力范围外。
H、增加通信模块，使得该校验仪自带远程通信功能，省去了中间通信媒介，只要接入其所支持的网络，通过简单设置就能连接到远程数据库，可以实时从数据库下载预存储的被校压力仪表基本信息，并能将校准数据通过网络实时上传至数据库。
I、本发明手持式全自动校验仪自带可充电、大容量供电电池，可持续长时 间供电，方便现场校验工作。
附图说明
图1A为本发明手持全自动压力校验仪整机外观图；
图1B为本发明手持全自动压力校验仪的结构逻辑图；
图1C为本发明手持全自动压力校验仪的结构分解图；
图2为本发明手持全自动压力校验仪的整体结构的轴侧分解图；
图3为本发明手持全自动压力校验仪的整体结构的仰视轴侧分解图；
图4为本发明手持全自动压力校验仪的连接有对外电测接口、DC接口和USB接口的主控电路板的正视轴侧图；
图5为本发明手持全自动压力校验仪的连接有对外电测接口、DC接口和USB接口的主控电路板的仰视轴侧图；
图6为本发明手持全自动压力校验仪的对外电测接口安装结构图；
图7为图6的仰视图；
图8为本发明手持全自动压力校验仪的挂钩式固定座原理图；
图9为本发明手持全自动压力校验仪的挂钩式固定座安装结构图；
图10为本发明手持全自动压力校验仪的微型智能压力接口模块与上壳密封图9的A-A剖视图；
图11为本发明手持全自动压力校验仪的气路***装配图；
图12为本发明手持全自动压力校验仪的气路***装配的轴侧图；
图13为本发明手持全自动压力校验仪的气路***沿图12的B-B方向的剖视顺时针90°旋转图；
图14是微型智能配气模块的剖面结构图；
图15是微型智能配气模块中微型气泵结构剖面图；
图16是微型气泵活塞杆向右运动工作状态示意图；
图17是微型气泵活塞杆向左运动工作状态示意图；
图18中A和B幅是微型气泵中二级缸体的两种不同结构的横截面图；
图19是微型气泵中单向阀结构的横截面图；
图20中A-C幅是分别显示V1-V3阀与微型气泵连接的截面图；
图21A是微型智能配气模块的正面视图；
图21B是沿着图14中的C-C线剖切得到的局部剖视图；
图22是沿着图21A中的D-D线进行剖切得到的局部剖视图；
图23是微型智能压力控制模块的结构正视图；
图24是微型智能压力控制模块的结构俯视图；
图25是图24沿B-B线截取的截面图；
图26是图24沿A-A线截取的截面图；
图27是图23沿C-C线截取的截面图；
图28是微型智能压力接口模块的正视图；
图29是图28沿A-A线截取的截面图；
图30是微型智能压力接口模块的左视图；
图31是图28沿B-B线截取的局部截面图(安装有例二的标准压力模块)；
图32是图28沿B-B线截取的局部截面图(安装有例一的标准压力模块)；
图33是标准压力模块的例一的结构剖视图；
图34是标准压力模块的例一的仰视图；
图35是标准压力模块的例二的结构剖视图；
图36是标准压力模块的例二的仰视图；
图37是本发明手持全自动压力校验仪另一实施例的逻辑框图。
整机附图标号：
100：微型气泵，200:微型智能配气模块，201：微型智能配气模块连接电路；
300：微型智能压力控制模块，301：微型智能压力控制模块连接电路，302：控制模块压力接头，303：弹性导气垫；
400：微型智能压力接口模块，401：微型智能压力接口模块连接电路；
500：标准压力模块；
600：接口电路板，601：接口电路板插头，602：配气模块插座，603：控制模块插座，604：电池插头，606：接口模块插座，
700：主控电路板，701：核心电路板，702：Wifi模块，703：接口电路板插座，704：模块接口插座，705：触摸屏插座，706：显示屏插座，707：USB接口与DC接口的组合插座，708：蓝牙模块，709：测量电路，711：存储器，712：微动开关，713：弹片，
800：触摸显示屏，801：触摸屏托架，
900：可充电电池，901：导轨槽，902：电池插座，903：电池凹槽，
010：上壳，011：通孔一，012：测量插孔，013：方形通孔，014：电源按钮，015：外部电器接口安装孔，016：防水端盖，018：凹槽，
020：连接电路板，021：电测口压板，022：对外电测接口，023：DC接口，024：USB接口，025：模块接口，026：挂钩式固定座，027、安装板，028：卡楞， 029：密封圈，
030：下壳，031：通孔二，032：凹槽一，033：凹槽二，034：电池安装导轨，035：T形凹槽，036：凸楞，
040：下盖，041：过滤器，042：吸气通孔，043：排气通孔，
050：支撑架，055:凹槽三，056：加强筋。
具体实施方式
以下结合附图和具体实施例，对本发明手持全自动压力校验仪进行详细说明。
本发明手持全自动压力校验仪采用模块化设计，结合图1A、图1B和图1C所示，该校验仪包括有一由上壳010、下壳030、下盖040组成的壳体，以及集成装配在壳体中的气路部件、电路部件和安装在壳体外部的可充电电池900。其中，气路部件包括有微型智能配气模块200(包含微型气泵100)、微型智能压力控制模块300、微型智能压力接口模块400和标准压力模块500，电路部件包括触摸显示屏800、主控电路板700、接口电路板600以及对外电测接口022和外部电器接口安装孔015，气路部件的电路连接至接口电路板600，电路部件电路连接至主控电路板700。以下结合各部件详细说明：
壳体
本发明手持全自动压力校验仪壳体采用弹性材料(热塑性聚氨酯弹性体橡胶TPU，包裹性能好，适于手持)制成，壳体整体轻巧、手持方便、舒适。壳体结构参见图1A、图1C、图2和图3中所示：
壳体包括上壳010和下壳030，上壳010和下壳030扣合形成适于手持的校验仪主体，主体内部空间中装配有微型智能压力接口模块400、标准压力模块500、主控电路板700、接口电路板600和触摸显示屏800；一下盖040安装于下壳030外侧，下盖040与下壳030形成的内部空间内装配有微型智能配气模块200(包含微型气泵100)和微型智能压力控制模块300，可充电电池900装配于下壳030外侧下部。
上壳010整体为楔形盖状体，按校验仪使用时的方向(图1A所示方向)，呈上大下小的结构，上部(图2、图3中左侧为上)端面为斜面，斜面上有通孔一011，上壳010周边内侧的弹性材料(TPU)延伸至斜面以及斜面上的通孔一011，以使通孔011与其中安装的零件(通孔一011用于使微型智能压力接口模块400的压力接头403和参考接头414从上壳010斜面露出至校验仪外)间密合；上壳010向外的平面(即图2、图3中朝上的平面)设置有一个用以容纳触摸显示屏800的方形通孔013；方形通孔013上方设置有三个圆形测量插孔012，下方有一个圆孔用于安装电源按 钮014，电源按钮014安装于圆孔时，电源按钮014的法兰盘与圆孔位置上壳010内侧压紧密合；上壳010左右两侧设置有外部电器接口安装孔015(参见图3)，两个外部电器接口安装孔015通过防水端盖016密封，两个防水端盖016与上壳010形成可旋转、活动，但不脱离的关系；另上壳010周边缘端与下壳030结合处设有凹槽018。
下壳030整体为楔形托，按校验仪使用时的方向(图1A所示方向)，呈上大下小的结构，其上部(图2、图3中左侧)端面为斜面，斜面上有通孔二031(参见图3)，下壳030周边内侧的弹性材料(TPU)过渡到下壳030上部斜面以及斜面通孔二031内，使通孔二031与通孔内安装的零件(微型智能压力接口模块400的标准压力模块安装座406)间密合。下壳030周边缘端与上壳010结合处设有凸楞036，下壳030与上壳010配合安装时，下壳030上的凸楞036(凸楞036也为弹性材料TPU制成)伸入上壳010的凹槽018内，保证安装面的密合。
为安装触摸显示屏800，上壳010内侧方形通孔013周边设置有凹槽，方框形防水泡棉安装于该凹槽内，触摸显示屏800叠装至一触摸屏托架801(参见图2)，将触摸屏托架801安装在上壳010内侧并紧固于方形通孔013位置，压紧防水泡棉。触摸显示屏800由叠装于一起的触摸屏和液晶显示屏组成，两个屏组合使用。
下盖040整体为楔形盖，按校验仪使用时的方向(图1A所示方向)，呈上小下大的结构，其整体小头端朝上装配在下壳030的外侧上部(图2、图3中左侧为上)，其与下壳030配合安装处也是弹性材料(TPU)制成，下壳030与下盖040配合安装时，下盖040压紧延伸到此处的弹性材料(TPU)，保证安装面的密合。可充电电池900装配于下壳030外侧下盖040的下部。
壳体各部位的密封使本发明手持全自动校验仪整机形成较高级别的防水防尘密封。
以上由上壳010、下壳030、下盖040和可充电电池900整体装配形成图1A所示的手持全自动压力校验仪外观，其显示了该校验仪的整体性和适于手持的特点。说明书中以图1A所示校验仪使用方向定义上、下、左、右、前、后和内、外。手持全自动压力校验仪内部构成及部件装配结合下面各部件的描述展开。
微型智能配气模块200(包含微型气泵100)
本发明中，微型智能配气模块200作为校验仪的气源，其能储存压力气体和真空并切换提供真空或增压气体。
微型智能配气模块200包括微型气泵100和气源端块280两部分，参见图14所示，微型气泵100为增压式电动气泵，气源端块280将微型气泵100与外界连 通。该部分附图标记有：
100：微型气泵，101：电机，102：电机座；
103：销轴，104：偏心轴，1041：驱动柄，105：连杆；
106：二级缸体，1061：第一级通孔，1062：第一台阶面，1063：第二台阶面，1064：第三台阶面，1065：第四台阶面，1066：第二级通孔；
107：第二组合密封件；
108：泵体座，1081：一级缸体，1082：二级缸体支撑座，1083：凸出部；
109：销钉，110：活塞杆，1101：活塞一级端，1102：活塞二级端，111：第一组合密封件，112：缸体垫；
113：端盖，114：一级吸气管路，115：一级吸气单向阀，116：一级排气单向阀，117：一级排气管路；118：压板；
119：过渡管路；
120：二级吸气管路，121：二级吸气单向阀，122：二级排气管路，123：二级排气单向阀；
124：单向阀芯，1241：上凸出部，1242：下凸出部，125：单向阀体，1251：进气孔，1252：出气孔，126：弹簧，127：阀端盖，129：阀体密封圈；
128：密封圈；
280：气源端块，230：阀岛；
231：V1阀，2311：V1阀第一通气孔，2312：V1阀第二通气孔；
232：V2阀，2321：V2阀第一通气孔，2322：V2阀第二通气孔；
233：V3阀，2331：V3阀第一通气孔，2332：V3阀第二通气孔，2333：V3阀第三通气孔；
234：正压气容，235：正压气容通气管路，236：真空气容，237：真空气容通气管路，238：气流管路一，239：气流管路二，240：正压连接头，241：密封缓冲垫，2411：第一异形通孔，2412：第二异形通孔；242：通气板，245：真空连接头；246:顶盖。
一、微型气泵100
本发明中微型气泵100为缸体导向微型增压式电动气泵，其具体结构参见图14至图17，包括电机101、偏心轴104、连杆105、二级缸体106和一级缸体1081、活塞杆110、销钉109、泵体座108、多个单向阀和密封圈以及多个管路，其中：
泵体座108为该电动气泵的连接部件，电机101通过电机座102垂向固定于泵体座108一侧，偏心轴104通过销轴103固定在电机座102下部，且电机轴伸 入到偏心轴104的垂向凹槽内，通过销轴103定位。
偏心轴104下端设有向下延伸偏离轴心的驱动柄1041，驱动柄1041穿过水平设置的连杆105一端的一个安装孔，驱动柄1041的端部伸出连杆105并用螺母固定；垂向设置的销钉109穿过连杆105另一端设有的另一个安装孔，将连杆105连接在水平方向的活塞杆110上，连杆105与活塞杆110有距离，销钉109伸出连杆105的端部以及伸出活塞杆110的端部分别用螺母固定。
活塞杆110包括杆部以及设置在杆部两端的活塞一级端1101和活塞二级端1102，活塞一级端1101和活塞二级端1102分别伸入一级缸体1081和二级缸体106中。泵体座108的两端形成一级缸体1081和二级缸体支撑座1082，即一级缸体1081和二级缸体支撑座1082一体成型。一级缸体1081用于容纳低压气体，位于连杆105运动的远端(图中所示“左”为连杆105运动的远端)，活塞一级端1101装配在一级缸体1081内侧；二级缸体支撑座1082用于装配二级缸体106，二级缸体106用于容纳高压气体，活塞二级端1102装配于二级缸体106的内侧。所述活塞二级端1102为圆柱体，在活塞杆110左右运动的过程中，所述活塞二级端1102伸入二级缸体106内部与二级缸体106配合形成密封。且在活塞杆110左右运动的过程中，活塞杆110的杆部不延伸进入所述二级缸体106的内部。活塞杆110通过设置在活塞一级端1101的第一组合密封件111在一级缸体1081内形成密封，第一组合密封件111由中空碗形密封环内衬弹性密封圈组合而成；活塞杆110通过设置在二级缸体106与活塞杆110的外表面之间的第二组合密封件107在二级缸体106内形成密封，第二组合密封件107由常规的高耐磨刚性圈和外套弹性密封圈组合使用。电机101驱动偏心轴104转动，通过驱动柄1041带动连杆105左右摆动(连杆105向左摆动终点为其相对于偏心轴104的运动远端，向右摆动终点为其相对于偏心轴104的运动近端)，进而通过销钉109带动活塞杆110在一级缸体1081和二级缸体106中沿轴线左右往复移动。活塞杆110的活塞一级端1101的端面面积大于所述活塞二级端1102的端面面积，相应地一级缸体1081的轴向横截面面积也大于二级缸体106的轴向横截面面积，如此在活塞杆110左右运动的过程中，活塞杆110的行程相同，则一级缸体1081的气体被压缩后通过单向阀控制进入二级缸体106后体积缩小即进一步被压缩，实现气体的第一次增压。
一级缸体1081外端依次设有缸体垫112、单向阀(包括一级吸气单向阀115和一级排气单向阀116)和端盖113。缸体垫112上设置有两个通气孔，一级吸气单向阀115和一级排气单向阀116通过上述两通气孔与一级缸体1081的内部相连通。端盖113上设置有两个管路，分别为一级吸气管路114和一级排气管路117。 一级吸气管路114用于连接外界空气或外源压缩空气管路，并与一级吸气单向阀115相连通。一级排气管路117与一级排气单向阀116相连通，用于将一级缸体1081内的气体排出。
二级缸体106外端连接有电机座102，电机座102内部开设有两个与二级缸体106内部相连通的管路(包括二级吸气管路120和二级排气管路122)，二级吸气管路120入口前安装有一进气单向阀(二级吸气单向阀121)用于向二级缸体106内单向进气。二级排气管路122出口安装有另一出气单向阀(二级排气单向阀123)用于将二级缸体106内气体单向排出。泵体座108和电机座102可以为分体设计，分体设计时，可设一压板118盖压并接合于端盖113、泵体座108和电机座102上端，同时将二级吸气单向阀121和二级排气单向阀123压紧；压板118开设有内置的过渡管路119，过渡管路119一端与一级排气管路117相连通，另一端连通二级吸气单向阀121。本发明还能将泵体座108和阀岛230(见图14)连为一体，如此，压板118即不需要而以阀岛230底部代替压板118。
在本发明中，二级缸体106不仅与活塞杆110的活塞二级端1102配合形成密闭空间以容纳高压气体，二级缸体106与一级缸体1081对位同中心轴设置还能作为活塞杆110的导向装置。二级缸体106作为导向装置位于活塞杆110的二级侧的端部，形成反导向形式，即一级缸体1081(低压缸)中低压活塞(活塞一级端1101)向前(图15中左为前)压缩气体时，配合装配的二级缸体106(高压缸)和高压活塞(活塞二级端1102)成为轴、孔配合的主要导向机构，形成低压活塞运动反方向强制导向。二级缸体106的结构参考图18，图18中的A和B分别为二级缸体106的两种不同结构形式。
如图18中的A-B幅所示，二级缸体106为中空柱体，内部通孔设有两级，分别为第一级通孔1061和第二级通孔1066，两级通孔彼此连通且第一级通孔1061的直径大于第二级通孔1066的直径，第一级通孔1061具有第一台阶面1062，第一台阶面1062垂直于二级缸体106的轴向并连接第一级通孔1061和第二级通孔1066的内表面。第二级通孔1066的内径与活塞杆110的活塞二级端1102外径匹配形成间隙配合，第一级通孔1061的内径大于活塞杆110的活塞二级端1102的外径，由此，第一级通孔1061的内表面、第一台阶面1062以及活塞杆110的活塞二级端1102外表面共同形成一环形凹槽，该环形凹槽中放置第二组合密封件107，使得二级缸体106与活塞杆110的活塞二级端1102之间形成密封，防止二级缸体106内部的气体从第一台阶面1062处泄漏；泵体座108与二级缸体106连接处设有一对相互对应的能封闭该环形凹槽开口的凸出部1083(见图17)以用于 抵挡第二组合密封件107。二级缸体106的外表面上设有一外台阶，该外台阶设置在二级缸体106邻近电机座102的一端，该外台阶使二级缸体106的外表面形成外径大小不同的两部分。外台阶的外部台阶面即第二台阶面1063垂直于二级缸体106的轴向。第二台阶面1063连接二级缸体106的外径不同的两部分的外表面，在二级缸体106的外径较小的外表面处设置有一密封圈128，密封圈128抵接第二台阶面1063，电机座102设置在密封圈128的外部，电机座102将密封圈128压紧进而密封二级缸体106抵接电机座102的一侧，使得二级缸体106内部的高压气体只能通过二级排气单向阀123排出。
如图18中的B幅，为二级缸体106的另一结构形式，其与图18中的A幅结构相似，其不同之处在于二级缸体106的外台阶结构的不同。为了调整密封圈压紧量，二级缸体106的外台阶有两级，形成两个外台阶面，其分别为第三台阶面1064和第四台阶面1065，第三台阶面1064距离二级缸体106的中心轴距离小于第四台阶面1065距离二级缸体106的中心轴的距离。密封圈128仅设置在第三台阶面1064上，第三台阶面1064和第四台阶面1065均与电机座102压紧配合，电机座102压紧第四台阶面1065能够防止二级缸体106因活塞杆110运动而产生的窜动(因为弹性密封圈压紧后还可能存在受力继续变形的可能)；通过调整二级缸体106的第三台阶面1064和电机座102在轴向上抵靠弹性的密封圈128的面之间的间距，可以调整密封圈128的压缩量。电机座102具有与上述两个外台阶面相匹配/吻合的结构，一方面用于固定和压紧密封圈128，另一方面电机座102通过与第四外台阶面1065匹配的压紧面还从轴向上将二级缸体106压紧在泵体座108上。
其中，一级吸气单向阀115、一级排气单向阀116、二级吸气单向阀121、二级排气单向阀123均可以使用相同功能已有结构的单向阀。更优的，可以使用图19所示的单向阀结构。如图19所示，该单向阀包括单向阀体125、与单向阀体125螺纹连接的阀端盖127、设置在单向阀体125内部的单向阀芯124及位于单向阀芯124和阀端盖127之间的弹簧126，其中，单向阀体125为中空柱体，上侧设有用于输入气体的进气孔1251，下端敞口端连接阀端盖127，接口处密封，阀端盖127设有出气孔1252；单向阀体125和阀端盖127形成的内腔中同轴留有间隙地安装单向阀芯124，单向阀芯124设有上凸出部1241和下凸出部1242，上凸出部1241与单向阀体125内壁之间装设阀体密封圈129，下凸出部1242外侧套装弹簧126。
单向阀的工作原理为：当气体经由单向阀体125的远离弹簧126一侧的进气孔1251进入时，气体施加一压力至单向阀芯124上并推动单向阀芯124向阀端盖 127的方向运动，弹簧126被压缩同时加大了单向阀芯124和单向阀体125之间的间隙，阀体密封圈129无法有效密封，气体进入单向阀体125，并经由单向阀体125和单向阀芯124之间的空隙从阀端盖127的出气孔1252排出。当没有气体从进气孔1251进入或者进入的气体施加的力不足以压缩弹簧126时，被压缩的弹簧126反弹，向上施加一反弹力使单向阀芯124向单向阀体125上部的进气孔1251方向移动，缩小了单向阀芯124与单向阀体125之间的间隙，单向阀芯124压迫阀体密封圈129实施密封，使气体无法从进气孔1251通过，当反向从出气孔1252进入气体时，密封圈129进一步被压缩持续密封，使气体无法从进气孔1251反向通过，从而实现单向进气。
单向阀的有益效果：第一、结构紧凑，可以实现体积小型化，节省空间；第二、可以单独制备，然后插装至需要的元件上，方便使用和替换；以及第三、改变安装方向即可实现相反的打开方向，方便使用。
通过以上各部件的装配得到微型气泵100，其工作原理如下：
在图16中，电机101带动偏心轴104转动，带动连杆105和活塞杆110向右侧运动并最终达到最右侧。此时在一级缸体1081(泵体低压部分，低压缸)的一侧，一级吸气单向阀115打开，一级排气单向阀116关闭，外部空气经由一级吸气管路114进入，一级缸体1081内部的空间逐渐增加并达到最大；同时，在二级缸体106(泵体高压部分，高压缸)的一侧，二级吸气单向阀121关闭，之前来自低压缸的气体在二级缸体106中进一步被压缩，从而其压力增加，实现气体的二级增压过程，此时，二级排气单向阀123开启向外排出二级增压后的气体。
在图17中，电机101带动偏心轴104转动，带动连杆105和活塞杆110向左侧运动并最终达到最左侧。此时在一级缸体1081的一侧，一级吸气单向阀115关闭，一级排气单向阀116打开，一级缸体1081内的气体经由一级排气管路117、过渡管路119、二级吸气单向阀121以及二级吸气管路120进入二级缸体106；此时，二级缸体106接收来自一级缸体1081内的气体，由于活塞一级端1101的面积大于活塞二级端1102的面积，一级缸体1081的气体进入二级缸体106之后体积被压缩，从而其压力增加，实现气体的一级增压过程。在此过程中，若二级缸体106内的气体压力小于二级排气单向阀123的排出端的压力时，二级排气单向阀123仍保持关闭；若二级缸体106内的气体压力大于二级排气单向阀123的排出端的压力时，二级排气单向阀123打开，二级缸体106内的一级增压气体通过二级排气管路122排出。
由此，外部气体被吸入一级缸体1081(如图16)，在一级缸体1081内被压缩 (如图17)后进入二级缸体106，在二级缸体106内经过体积变小的一级增压和再次被压缩(如图16)的二级增压，经由二级排气管路122排出。微型气泵如此循环工作，实现了持续提供增压气体的功能。
本发明中微型气泵100的有益效果为：
(1)在二级缸体106部分，将第二组合密封件107设置在二级缸体106的内表面与活塞杆110的外表面限定的环形凹槽内，从而将现有的活塞杆110与二级缸体106之间的动态密封改进成了静态密封，使得第二组合密封件107的寿命提高；
(2)二级缸体106位于活塞杆110的活塞二级端1102，结构上成为轴、孔配合的导向机构形成自带导向功能的气泵，二级缸体106与活塞杆110的配合距离较长，使得活塞杆110运动的稳定性提高，改变了采用密封件作为活塞导向主要零件状态，减小了密封件磨损；
(3)二级缸体106采用耐磨、自润滑材料制成，减少了二级缸体106和活塞杆110之间的摩擦力，提高微型气泵100寿命；
(4)二级缸体106和活塞杆110之间可以自润滑从而不需要润滑油，形成一种无油润滑增压气泵，减少了微型气泵100的污染；以及
(5)活塞一级端1101的端面面积较大，在活塞杆110向左运动时，由于一级缸体1081压力较小，连杆105仅需施加较小的力给活塞杆110即可实现将一级缸体1081内的大量气体排出到二级缸体106内，如此，电机101也仅需提供较小的动力给连杆105，节省了能耗；而活塞二级端1102的端面面积较小，输出的气体压力可以很高，活塞杆110需要的动力较小，因此，在活塞杆110向右运动时，可以实现对二级缸体106内的气体进行增压，实现了气体的二级增压过程。
二、气源端块280
参见图14，本发明中气源端块280包括阀岛230、布置在阀岛230内的一正压气容234和一真空气容236、以及与两气容和微型气泵管路连通的三个微型电磁阀V1阀231、V2阀232和V3阀233。
阀岛230为用于布置两气容、三个电磁阀和管路的部件，其内部设有两个较大容腔、三个较小容腔和多个管路孔。分隔设置的两个较大容腔可以分别直接用作正压气容234和真空气容236，较大容腔直接作为气容腔室时，容腔顶部用顶盖246密封，结合图21B所示，正压气容234通过正压气容通气管路235连接并连通一正压连接头240，真空气容236通过真空气容通气管路237连接并连通一真空连接头245；分隔设置的三个较小容腔分别用于放置所述三个电磁阀V1阀231、V2 阀232和V3阀233，正压气容234、真空气容236和三个电磁阀之间通过管路连接。其中：
继续参阅图14和图20之A幅(图14中A-A剖面)，V3阀233安装在阀岛230靠近微型气泵100气缸低压端一级缸体1081位置。V3为二位三通电磁阀，其包括三个通气孔即V3阀第一通气孔2331、V3阀第二通气孔2332和V3阀第三通气孔2333，其中V3阀第三通气孔2333连通至外界大气，V3阀第二通气孔2332与微型气泵100的吸气端即一级吸气管路114连通，V3阀第一通气孔2331通过气流管路一238与真空气容236连通。通过V3阀能控制三个通气孔的打开或关闭。
继续参阅图14和图20之C幅(图14中B-B剖面)，V1阀231安装在阀岛230靠近微型气泵100气缸高压端二级缸体106位置。V1阀231为二位二通电磁阀，其包括两个通气孔即V1阀第一通气孔2311和V1阀第二通气孔2312，其中V1阀第一通气孔2311连通至外界大气，V1阀第二通气孔2312与微型气泵100的增压输出端即二级排气管路122连通。V1阀的开/断能控制二级排气管路122与外界之间的气体连通/断开。
继续参阅图14和图20之B幅，V2阀232用于连通正压气容234和微型气泵100的增压输出端即二级排气管路122。V2阀232是二位二通电磁阀，包括两个通气孔即V2阀第一通气孔2321和V2阀第二通气孔2322，其中V2阀第一通气孔2321通过气流管路二239与二级排气管路122连通(二级排气管路122分为两个支路，分别与V1阀和V2阀连接)，V2阀第二通气孔2322与正压气容234连通。V2阀能用以控制V2阀两个通气孔的打开或关闭。
以上装配的微型电磁阀V1阀231、V2阀232和V3阀233以及微型气泵100的电机101连接到接口电路板600的电路，通过电路控制电磁阀开或闭及微型气泵100电机101启或停，使微型气泵100与正压气容234、真空气容236或外界大气之间的气流连通或断开，在正压气容234内部存储高压气体，在真空气容236内部形成真空。
以上装配作为气源端块280的基本形式，其可完成如下工作：
真空源产生过程为：V3通电，此时V3阀第三通气孔2333关闭，V3阀第二通气孔2332和V3阀第一通气孔2331连通并打开，真空气容236通过气流管路一238连通微型气泵100的低压吸气管路114，微型气泵100的低压端对真空气容236进行抽真空；从真空气容236抽取的气体在微型气泵100中被输送至其高压端，通过二级排气管路122和二级排气单向阀123输送至V1阀；V1阀通电，打开V1阀第二通气孔2312和V1阀第一通气孔2311，从真空气容236抽取的气体从V1阀第 一通气孔2311被排出至大气。通过微型气泵100的持续工作，真空气容236内部的气体不断被排出，真空气容236的真空度提高；V3阀断电，关闭与真空气容236连通的V3阀第一通气孔2331，如此保持真空气容236内部的真空。在上述过程中，V2关闭，真空气容236抽真空的过程微型气泵100不输出增压气体。
正压气源产生过程为：V3阀断电，此时V3阀第一通气孔2331关闭(微型气泵100不再对真空气容236进行抽真空)，而V3阀第三通气孔2333和V3阀第二通气孔2332连通并打开，微型气泵100的一级吸气管路114通过V3阀第三通气孔2333与大气连通；微型气泵100运行，下盖040与夹在阀岛230间的密封缓冲垫241形成吸气通孔042(见图11、图13、图22)，微型气泵100的一级吸气管路114不断从该吸气通孔42处抽取外来气体(空气)并增压形成增压气体；V2阀通电且V1阀断电，打开V2阀第一通气孔2321和V2阀第二通气孔2322，关闭V1阀第一通气孔2311，微型气泵100形成的增压气体顺序经过二级排气单向阀123、二级排气管路122、V1阀第二通气孔2312外环流道、气流管路二239、V2阀第一通气孔2321、V2阀第二通气孔2322被输送至正压气容234，如此在正压气容234内形成压力。
由此，产生的增压气体能存储在正压气容234内以用作正压气源，真空气容236形成真空源。在实际工作时，结合图21B所示，正压气容234通过正压连接头240、真空气容236通过真空连接头245能与微型智能压力控制模块300气体连通从而提供正压气源或真空源。
气源端块280在最初开始运行时，通过打开V1阀和关闭V2阀，可将微型气泵100的二级缸体106(高压缸)通过排气通孔043(见图22，下盖040与夹在阀岛230间的密封缓冲垫241间形成排气通孔043)与外界气体之间连通，此时，高压缸内的气体压力为外界大气压力，如此实现了微型气泵100的无压启动，可以消除微型气泵100在启动时因管路容积小瞬间产生较高压力损坏气泵零件的问题，从而保护了气泵，也延长了微型智能配气模块200的使用寿命。气源在此无压启动之后，再根据需要对V1阀、V2阀、V3阀进行控制，用以产生增压气体和真空。
以上设计的气源端块280能达到以下有益效果：第一、其结构紧凑、体积小，能自动提供增压气体和真空。第二、产生的正压气源和真空可以存储在正压气容234和真空气容236中，当有需要时，可以直接提供正压气源和真空源，而无需气泵运行，减少了气泵频繁启动，提高了气源供气效率。
三、微型智能配气模块200的装配及其改进
结合图2和图3所示，微型智能配气模块200插装至微型智能压力控制模块 300后，安装在下壳030与下盖040间，微型智能配气模块200位于下盖040一侧。
本发明还对上述微型智能配气模块200基本形式进行扩展形成改进型配气模块，该改进体现在增加有密封缓冲垫和过滤***。
请参阅图21和图22，显示了位于图14所示配气模块200朝向下盖040一侧的密封缓冲垫241的构成，该密封缓冲垫241铺设在阀岛230外表面，与正压连接头240、真空连接头245所在阀岛230的外表面相对(参见图21B)。密封缓冲垫241上开设有两个异形通孔，其中第一异形通孔2411位置与正压气容234相对，第一异形通孔2411通过V3阀第三通气孔2333与一级吸气管路114连通，第二异形通孔2412位置与真空气容236相对，通过V1阀第一通气孔2311与二级排气管路122连通。
下盖040的后平面(参见图3显示的平面，按校验仪使用时方向定义)，后平面上设置有由多个通气孔组成的吸气孔组042和排气孔组043，吸气孔组042与第一异形通孔2411位置相对并连通，排气孔组043与第二异形通孔2412位置相对并连通，一过滤器041(参见图2)设置在第一异形通孔2411内并从内部覆盖所述吸气孔组042，下盖040的背平面和阀岛280外表面从两侧夹紧密封缓冲垫241以及其中的过滤器041，通过密封缓冲垫241对气源端块280形成平面密封。
如此装配的配气模块，在以上介绍的基本工作过程中，当V3阀断电状态时，V3阀第三通气孔2333打开，外界气体经由吸气孔组042进入第一异形通孔2411，被过滤器041过滤之后通过V3阀第三通气孔2333由一级吸气管路114进入微型气泵100的一级缸体1081(低压缸)，如此，从外界进入低压缸的气体经过过滤而变成洁净的气体。而当V1阀通电时，V1阀第一通气孔2311打开，微型气泵100的二级缸体106(高压缸)内的增压气体由二级排气管路122经V1阀第一通气孔2311进入第二异形通孔2412、通过下盖040的排气孔组043排出，不影响微型气泵100的无压启动。
改进的微型智能配气模块200增加了以下有益效果：
第一、下盖040和阀岛230从两侧夹紧密封缓冲垫241形成平面密封，这样进气和排气的气道较短，气阻较小，气泵效率较高，气泵产生的热量也较容易被吸、排的空气带走。
第二、密封缓冲垫241、阀岛230外表面，下盖040内表面三者共同形成吸气和排气道，将气路***与外部环境相连，气泵从***外部环境吸取的为经过滤的气体，并将废气全部排到***外部，集中密封处理，实现了气源装置的防水防尘。
第三、压紧安装的密封缓冲垫241为气源装置提供支撑，同时避免微型气泵 的震动直接传导到机体外部，起到了减震作用。
第四、进气端使用隔离过滤装置，保证粉尘和其他固体颗粒不会进入气路内部。
微型智能压力控制模块300
本发明中，微型智能压力控制模块300用于控制和调节来自微型智能配气模块200的压力气体和真空气体，以得到高精度、稳定的期望压力和真空气体。
该部分使用以下标号：
61：控制阀岛，62：压板，63：电路板，64：进气控制电磁阀；
65：第四电磁阀，651：第四电磁阀第一通气孔，652：第四电磁阀第二通气孔，653：第四电磁阀第三通气孔；
66：排气控制电磁阀，67：真空传感器，68：第一插座，69：压力传感器，70：第二插座；71：第三插座，72：压力气体接口；
73：第一压力管路，74：第二压力管路，75：第三压力管路，76：第四压力管路，77：阀后排气管路，78：第一真空管路，79：第二真空管路；
80：真空接口，81：第一接头，82：连接头，302：控制模块压力接头。
一、微型智能压力控制模块300的结构
图23至图27为微型智能压力控制模块300的结构示例，该压力控制模块采用紧凑型结构，将压力传感器69、真空传感器67、电路板63、进气控制电磁阀64、排气控制电磁阀66、第四电磁阀65、压力气体接口72、真空接口80以及由第一接头81、连接头82和控制模块压力接头302依次连接形成的气道接头集成到一控制阀岛61上，控制阀岛61的内部设置有由管路孔形成的多个管路，管路用作各个部件之间的气路连接通道，以上各部件与各管路相配合形成压力气体通道、真空气体通道；将压力传感器69、真空传感器67、电路板63电连接到接口电路板600，用于控制进气控制电磁阀64、排气控制电磁阀66、第四电磁阀65调节输入的压力气体和真空气体的量，从而得到与设定值相同的压力值或真空值，实现了智能地控制压力/真空大小。其中：
进气控制电磁阀64和排气控制电磁阀66分别通过螺钉固定至控制阀岛61的两侧，电路板63通过螺钉固定于控制阀岛61的上侧，第四电磁阀65安装于控制阀岛61的内部，且位于进气控制电磁阀64和排气控制电磁阀66之间；可以理解，上述固定方式不限于用螺钉固定，还可以为焊接等其它固定方式。电路板63上设置有三个插座，即第一插座68、第二插座70和第三插座71，压力传感器69通过 第一插座68与电路板63电连接，真空传感器67通过第二插座70与电路板63电连接(见图24)，电路板63通过第三插座71(见图23)电连接至接口电路板插座703(参见图3)；进气控制电磁阀64、排气控制电磁阀66和第四电磁阀65通过连接线电连接至上述接口电路板插座703，接口电路板插座703电连接至接口电路板600。接口电路板600用于获取压力传感器69和真空传感器67所测得的数据，并控制进气控制电磁阀64、排气控制电磁阀66和第四电磁阀65的开/闭。
位于控制阀岛61内部的管路包括第一压力管路73、第二压力管路74、第三压力管路75、第四压力管路76、阀后排气管路77、第一真空管路78和第二真空管路79；通过上述管路与各电磁阀配合形成压力气体通道和真空气体通道。
进气控制电磁阀64和排气控制电磁阀66为微型高精度气流控制阀，分别精确控制输入和输出的压力气体的流量，二者都设有第一端口和第二端口；第四电磁阀65为二位三通电磁阀，设有第四电磁阀第一通气孔651、第四电磁阀第二通气孔652和第四电磁阀第三通气孔653。
参照图23至图27，压力气体从压力气体接口72输入，以下从压力气体接口72开始详细描述压力气体通道上各部件的连接***。
压力气体接口72固定于控制阀岛61的一侧，一端位于控制阀岛61的表面，与外接的压力气源插装方式连接；压力气体接口72的另一端位于控制阀岛61的内部，与第一压力管路73连通；压力传感器69设置有第一端口和第二端口，其第一端口与第一压力管路73相连通，其第二端口与第二压力管路74相连通，压力传感器69可感测流经其内部的压力气体的压力值；进气控制电磁阀64设有第一端口和第二端口，其第一端口与第二压力管路74相连通，其第二端口与第三压力管路75相连通；第三压力管路75与第四压力管路76相连通；第四压力管路76还分别与排气控制电磁阀66的第二端口以及第一接头81相连通。
第一接头81为中空管状结构，其与连接头82的一端连接，连接头82的另一端与控制模块压力接头302以插装方式连接，第一接头81和控制模块压力接头302端口内部均设置有密封圈以实现气路的密封。
在实际应用中，控制模块压力接头302可与微型智能压力接口模块400的气压输入接口415以插装方式连接，该压力接口模块一般连接有标准压力模块500，还可连接被测压力仪表；通过控制模块压力接头302，压力气体或真空气体被输送到标准压力模块500和被测压力仪表。控制模块压力接头302与连接头82以插装方式连接，使得连接头82通过滑动可方便地实现第一接头81和控制模块压力接头302之间的快速分离或结合，以实现气路的连接或断开。
参照图23至图27，真空气源从真空接口80接入，以下从真空接口80开始详细描述真空气体通道上各部件的连接***。
真空接口80固定于控制阀岛61的另一侧，一端位于控制阀岛61的表面，与外接的真空气源插装方式连接；真空接口80的另一端位于控制阀岛61的内部，与第一真空管路78连通；真空传感器67设有第一端口和第二端口，其第一端口与第一真空管路78相连通，其第二端口与第四电磁阀65的第四电磁阀第一通气孔651相连通，真空传感器67可感测流经其内的真空气体的真空值；第四电磁阀65的第四电磁阀第二通气孔652与阀后排气管路77相连通，第四电磁阀第三通气孔653连通至大气；阀后排气管路77与排气控制电磁阀66的第一端口连接，排气控制电磁阀66的第二端口与第四压力管路76相连通，第四压力管路76与第一接头81连接。
综上所述，压力气体通道和真空气体通道通过各部件和管路均连接至第一接头81，并经连接头82、控制模块压力接头302将压力气体或真空气体提供给微型智能压力接口模块400，其中，控制模块压力接头302与微型智能压力接口模块400的气压输入接口415相连通。
以上部件按照上述连接关系组装成微型智能压力控制模块300，该压力控制模块通过真空传感器67、压力传感器69、进气控制电磁阀64、排气控制电磁阀66和第四电磁阀65以及控制电路的紧密配合，实现精准控压供气，其工作原理具体如下：
当需要提供压力气体时，来自微型智能配气模块200正压连接头240的压力气体从压力气体接口72流入，然后依次流经第一压力管路73、压力传感器69、进气控制电磁阀64(处于打开状态)、第四压力管路76、第一接头81和控制模块压力接头302进入微型智能压力接口模块400的气压输入接口415，例如，经由控制模块压力接头302，压力气体分别通过微型智能压力接口模块400被提供至被测压力仪表和标准压力模块500。在此过程中，排气控制电磁阀66关闭，以隔断真空气体。所述标准压力模块500测量压力气体的压力值，由接口电路板600比较测量的压力值与设定的压力值大小，如果压力气体的压力值小于设定的压力值，则继续保持进气控制电磁阀64打开，排气控制电磁阀66关闭，进气控制电磁阀64控制压力气体的输入量，通过不断提供压力气体，供应至被测压力仪表的压力将增大，直至达到设定的压力值为止；如果标准压力模块500所测量的压力值大于设定的压力值，则将进气控制电磁阀64关闭且将排气控制电磁阀66打开，此时，流向第一接头81的压力气体的一部分经由排气控制电磁阀66流向第四电磁 阀65的第四电磁阀第二通气孔652，此时保持第四电磁阀65在断电状态下，第四电磁阀65的第四电磁阀第二通气孔652和第四电磁阀第三通气孔653连通，一部分压力气体经由第四电磁阀第三通气孔653排至外界；在标准压力模块500所测量的压力值等于设定的压力值之后，将排气控制电磁阀66和进气控制电磁阀64均关闭，提供具有设定压力值的压力气体至被测压力仪表。
当需要提供真空气体时，来自微型智能配气模块200真空连接头245的真空气体通过真空接口80、第一真空管路78、第二真空管路79、第四电磁阀65、排气控制电磁阀66(处于打开状态)、第四压力管路76、第一接头81和控制模块压力接头302，同时对连接到控制模块压力接头302的被测压力仪表和标准压力模块500抽真空。在此过程中，第四电磁阀65处于通电状态下，第四电磁阀第一通气孔651和第四电磁阀第二通气孔652连通，第四电磁阀第二通气孔652和第四电磁阀第三通气孔653断开，同时，进气控制电磁阀64关闭，以隔断压力气体。标准压力模块500测量所述真空气体的真空度，由接口电路板600比较测量的真空度与设定的真空度值的大小，如果所提供的真空度不够低，则保持排气控制电磁阀66打开且进气控制电磁阀64关闭，此时继续抽真空，直至真空值达到设定的真空度为止；如果所提供的真空度过低，则将排气控制电磁阀66关闭且将进气控制电磁阀64打开，此时，进气控制电磁阀64提供的压力气体经由第三压力管路75提供至第一接头81，直至真空度与所设定的真空度一致为止，此时将排气控制电磁阀66和进气控制电磁阀64均关闭，从而提供稳定的真空气体至被测压力仪表。
二、微型智能压力控制模块300的装配
结合图2和图3所示，微型智能压力控制模块300的真空接口80、压力气体接口72分别与微型智能配气模块200的真空连接头245、正压连接头240对位密封插装后，安装在下壳030与下盖040间，微型智能压力控制模块300位于下壳030一侧，下壳030背部(即图2、图3所示方向的下方)设有用于安装微型智能压力控制模块300的凹槽。
这里，微型智能配气模块200与微型智能压力控制模块300间设有弹性导气垫303，弹性导气垫303上设有导气槽，导气槽将微型智能压力控制模块300上的第四电磁阀第三通气孔653与微型智能配气模块200上的工艺孔44连通(用于微型智能压力控制模块300的集中排气)。同时弹性导气垫303具有缓冲减震作用，可减小、隔离微型智能配气模块200上微型气泵100的振动。
微型智能压力接口模块400
本发明中，微型智能压力接口模块400用于连接被检压力仪表和标准压力模块500，并实现对被检仪表回流的过滤、气液分离及排污。
微型智能压力控制模块300上的控制模块压力接头302通过相应孔槽插装到微型智能压力接口模块400的输入端，为微型智能压力接口模块400提供控压后的气体。
该部分使用以下标号：
400：微型智能压力接口模块；
401：微型智能压力接口模块连接电路；402：接头座，403：压力接头，404：放气阀座，405：第二电路板，406：标准压力模块安装座，407：气液分离室，408：压力参考腔，409：第一电磁阀，410：第二电磁阀，411：插座，412：通讯插头，413：除污过滤器，414：压力参考接头，415：气压输入接口，416：模块压力接口，417：模块压力参考接口，418：端盖，419：第三气流管路，420：第四气流管路，421：第一气流管路，422：第二气流管路，423：第一电磁阀第一通气孔，424：第一电磁阀第二通气孔，425：第二电磁阀第一通气孔，426：第二电磁阀第二通气孔，427：安装孔。
一、微型智能压力接口模块400的结构
参照图28至图30，为微型智能压力接口模块400的结构示例。如图28所示，微型智能压力接口模块400包括对整个压力接口模块起支撑连接作用的接头座402和标准压力模块安装座406，其中，接头座402包括呈一定角度向两个不同的方向延伸的两个柱体结构，即第一柱体结构和第二柱体结构，接头座402具有三个连接面，两柱体结构的交接处设有气压输入连接面；第一柱体结构的端部设有接头连接面，用于设置连接压力仪表的压力接头；第二柱体结构的端部设有标准压力模块连接面，用于连接标准压力模块500和标准压力模块安装座406；标准压力模块安装座406为具有通孔的柱体结构，用于连接标准压力模块500；标准压力模块安装座406的通孔为L形台阶孔，L形台阶孔较深的一侧与接头座402的标准压力模块安装座连接面连接，L形台阶孔较浅的一侧台阶上设置有一通槽，用于装配通讯插头412。
如图29和图30所示，接头座402的接头连接面上设置有一压力接头403和一压力参考接头414，分别用于连接被检压力仪表的压力端和压力参考端；接头座402内设置有气液分离室407、压力参考腔408、第一电磁阀409以及多个气流管路，其中，压力参考腔408位于接头座402的压力参考接头414所在的一侧并与压力参考接头414相连通，用于防止参考点压力发生大的波动，压力参考腔408 外侧通过一端盖418覆盖密封，二者连接处设置密封圈；气液分离室407位于接头座402的压力接头403所在的另一侧，用于缓存气体并进行气液分离，气液分离室407外侧通过一放气阀座404密封；放气阀座404内设置有第二电磁阀410，第二电磁阀410的第二电磁阀第二通气孔426通过第一气流管路421与气液分离室407连通，第二电磁阀第一通气孔425与大气相连通，通过控制第二电磁阀410的开启/关闭实现对气液分离室407的放气排污；第一电磁阀409布置在压力接头403和气液分离室407之间，压力接头403通过第二气流管路422和第一电磁阀第二通气孔424与气液分离室407连通，气液分离室407通过第一电磁阀409和第四气流管路420与压力参考腔408连通；接头座402的气压输入连接面上设置一气压输入接口415(用于连接微型智能压力控制模块300的控制模块压力接头302)，该气压输入接口415用于接受气压输入，其与气液分离室407直接连通可为气液分离室407供气。
如图29所示，接头座402在位于压力接头403和压力参考接头414的两侧分别延伸出一凸起，两个凸起上分别设置有一安装孔427，可通过螺钉穿过该安装孔将压力接口模块整体固定于本发明的手持全自动压力校验仪壳体上。压力接头403和压力参考接头414的内部端口位置分别设置有除污过滤器413，用于过滤复杂环境使用过的被检压力仪表回流带来的污染物或杂质，以保护接头以及该校验仪内的管路。
接头座402的标准压力模块连接面用于连接标准压力模块500和标准压力模块安装座406，标准压力模块安装座406的L形台阶孔的通槽上部安装有第二电路板405，通讯插头412穿过上述通槽与第二电路板405电连接，通讯插头412电连接到一插座411并汇集微型智能压力接口模块400电磁阀等连线，形成微型智能压力接口模块连接电路401(见图2)，与接口电路板600接口模块插座606插接，用作通讯信号的转接接口，插座411连接至微型智能压力接口模块连接电路401；接头座402的标准压力模块连接面上设置有一模块压力接口416和一模块压力参考接口417，用于插装标准压力模块500；模块压力参考接口417与压力参考腔408直接连通，模块压力接口416通过第三气流管路419与气液分离室407相连通。
二、装配
参考图2、图3并结合图8、图9、图10，微型智能压力接口模块400通过挂钩式固定座026固定于上壳010内上端斜面。挂钩式固定座026挂于斜面加强筋056上后再固定于上壳010内侧，微型智能压力接口模块400通过其安装孔427固定在挂钩式固定座026上，从而固定在上壳010内。微型智能压力接口模块400按上述方式固定 于上壳010内后，其气压输入接口415与微型智能压力控制模块300的控制模块压力接头302对位并密封连接，微型智能压力接口模块400的压力接头403和一压力参考接头414从上壳010上端斜面通孔一011露至校验仪外；同时，微型智能压力接口模块400的接头座402上安装压力接头403和压力参考接头414的凸台侧端面的密封圈使微型智能压力接口模块400与通孔一011密合。
上壳010内安装有所有电器部件和微型智能压力接口模块400后，下壳030从上壳010下方与上壳010配合安装。下壳030与上壳010配合面的凸楞036装入上壳的凹槽018内，上壳010与下壳030的安装面形成密合；微型智能压力接口模块400的标准压力模块安装座406与下壳030前下方的斜面通孔二031对准。标准压力模块500可从斜面通孔二031插装连接至微型智能压力接口模块400的标准压力模块安装座406。
标准压力模块500
标准压力模块500提供高精度的标准压力值，作为检测过程中的压力基准。本发明可更换安装于压力接口模块上的不同精度、不同量程、不同类型(绝压、差压、表压)的标准压力模块500，实现对不同压力仪表的校验。
该部分使用以下标号：
500：标准压力模块；
501：基座，502:第一电路板，503:基座盖，504：密封圈，505：压力接口，506；不脱螺钉，507：压力传感器，508:通讯插座，509:密封垫，510:防水透气膜，511：通气孔，512：压环，513：螺钉；514：压力参考接口。
一、标准压力模块500的结构
如图33至图36所示，为标准压力模块500的两种常见的压力模块(绝压模块/表压模块和差压模块)的结构图示例。如图33和图34所示，绝压模块/表压模块包括基座501、电路板502、压力传感器507、基座盖503和通讯插座508，其中：
基座501呈L形结构，较厚的一侧开设有一用于安装传感器的安装槽，压力传感器507从上而下安装于安装槽内并用一压环512压紧；安装槽底部开设有一第一通孔用于安装压力接口505，该压力接口的外周设置有一密封圈504。
第一电路板502安装于基座501的上侧，L形基座501较薄侧的位置开设有开孔，通讯插座508穿过该开孔安装于电路板502上；压力传感器507的信号传输线连接至电路板502，第一电路板502对压力传感器507的输出信号进行分析、 调试、放大后转换为高精度数字信号，并通过通讯插座508传输到与通讯插座508电连接的显示仪表，可直接显示压力数字信号。
压力接口505与通讯插座508同向设置于该微型高精度压力模块上，通讯插座508包括导向结构(参见图33)，其与外接接口形成导向连接，防止插接不当导致电路故障。两个不脱螺钉506对称设置在基座501较厚侧的底面上，方便该压力模块整体紧固连接于校验设备或压力仪表。压力接口505的连接口处的密封圈504使得连接设备或压力仪表的表面与压力接口505位置处的管路形成密封。
基座盖503为倒U形结构，其侧壁的底部形状大小与基座侧壁顶部的形状大小相匹配，基座盖503压紧密封垫509盖合于基座501的侧壁上，且基座盖503与第一电路板502相隔一定距离，使得基座501、通讯插座508以及基座盖503之间形成密封结构；基座盖503上开设有通气孔511，基座盖503内侧位于通气孔511处设置一防水透气膜510，该透气膜能够通气且防水防尘。上述结构使得基座盖503与基座501形成的腔体内达到IP67级防水防尘密封，保护压力传感器507和电路板502，同时保持通气，保证压力传感器507的对比压力为大气压，从而保证压力测量的准确性。
如图35和图36所示，差压模块与绝压模块/表压模块的结构基本相同，不同之处在于，差压模块的压力传感器安装于基座501的安装槽内，上端由基座盖503通过一螺钉513压紧；基座501的安装槽的底部开设有第一通孔和第二通孔，分别安装压力接口505和压力参考接口514，压力接口505和压力参考接口514的周围设置密封圈504。
上述差压模块可以用于测量压力接口505和压力参考接口514的外接压力之间的压力差。
该压力接口模块400装配标准压力模块500之后可直接安装于本发明的手持全自动压力校验仪中进行使用，压力接头403、压力参考接头414和标准压力模块安装座406都外露于手持全自动压力校验仪外，便于外接待检压力仪表以及便于安装、维修或更换标准压力模块500。该压力接口模块400从手持全自动压力校验仪的内部安装，微型智能压力接口模块400的标准压力模块安装座406与下壳030上端的斜面通孔二031(见图3)对准，装入后从内部用螺钉穿过接头座402的安装孔427固定于手持全自动压力校验仪的下壳030上，然后将标准压力模块500从下向上从标准压力模块安装座406中穿过斜面通孔二031插装至该压力接口模块400上。需要插装的标准压力模块500的类型根据待检压力仪表的类型来决定，例如，对绝压仪表进行校验时需要安装绝压模块，对表压仪表进行校验时需要安装表压模块，对 差压仪表进行校验时需要安装差压模块。
如图31所示，插装差压模块后，差压模块的压力接口505插装至接头座402的模块压力接口416中，压力参考接口514插装至模块压力参考接口417中，差压模块的密封圈504对上述接口连接处形成密封，同时接头座402上的通讯插头412插装至差压模块的通讯插座508中，差压模块的第一电路板502与接头座402上的第二电路板405电连接，差压模块的不脱螺钉506将差压模块固定于接头座402上，实现差压模块与接口模块气路和电路的连接。之后将被检差压仪表的压力参考端与压力参考接头414连接，压力端与压力接头403连接，控制后的气压从气压输入接口415处接入。
上述连接完成之后，再将标准压力模块500(差压模块)的第一电路板502、接头座402内部的第一电磁阀409和第二电磁阀410的第二电路板405连接到接口电路板600，并将接口电路板600电连接到主控电路板700，就可以进行差压仪表的校验。压力接口模块400与标准压力模块500工作过程如下：
差压仪表校验时，控制第二电磁阀410开启，即第二电磁阀第一通气孔425与第二电磁阀第二通气孔426断开；控制第一电磁阀409开启，即第一电磁阀第一通气孔423与第一电磁阀第二通气孔424连通，气压输入接口415不进行压力输入，因为压力参考接口514和压力接口505连通，这时差压压力为0，找到差压压力零点；此时差压仪表的压力参考端与压力端的压力一致，可对被检压力仪表进行零点校准；控制第一电磁阀409和第二电磁阀410关闭，并通过气压输入接口415输入气体，为气液分离室407以及被检压力仪表的压力端增压，压力释放过程最后阶段有一定的压力时，开启第二电磁阀410，随被检仪表流回的液体等污染物排放出气液分离室407外，实现对被检压力仪表压力值的校对，并根据标准压力模块的压力值对压力进行调整，实现校准。
如图32所示，插装绝压模块(或者表压模块，绝压模块和表压模块都只有一个压力接口505，这里以绝压模块为例进行描述)后，绝压模块的压力接口505插装至接头座402的模块压力接口416中，绝压模块的密封圈504对上述接口连接处形成密封，同时接头座402上的通讯插头412插装至绝压模块的通讯插座508中，绝压模块的第一电路板502与接头座402上的第二电路板405电连接，绝压模块的不脱螺钉506将绝压模块固定于接头座402上，实现绝压模块与该压力接口模块气路和电路的连接。之后将被检绝压仪表的压力端与压力接头403连接，压力气体从气压输入接口415处接入。
上述连接完成之后，再将标准压力模块500(绝压模块)的第一电路板502、 接头座402内部的第一电磁阀409和第二电磁阀410的第二电路板405连接到接口电路板600，并将接口电路板600电连接到主控电路板700，就可以进行绝压仪表的校验。其工作原理如下：
控制第一电磁阀409和第二电磁阀410都关闭，即第一电磁阀第一通气孔423与第一电磁阀第二通气孔424断开，第二电磁阀第一通气孔425与第二电磁阀第二通气孔426断开，使得气液分离室407与压力参考腔408断开，并进行气压输入，为气液分离室407供气、增压，压力释放过程最后阶段有一定的压力时，开启第二电磁阀410，随被检仪表流回的液体等污染物排放出气液分离室407外，实现对绝压模块与绝压仪表的比对，并根据标准压力模块的压力值对供气压力进行调整，实现校准。
接口电路板600和主控电路板700
接口电路板600为气路部件的电路集成板，并将电源、电池与主控电路板700转接。参见图2和图3，接口电路板600为异形板，分布设置有接口电路板插头601(用于连接主控电路板700)、配气模块插座602(用于连接微型智能配气模块连接电路201)、控制模块插座603(用于连接微型智能气体控制模块连接电路301)、电池插头604(用于连接充电电池900)、接口模块插座606(用于连接微型智能压力接口模块400的微型智能压力接口模块连接电路401)。接口电路板600位于下壳030的前侧下部(按图1校验仪方向定义)，下壳030还设有多个用于电路连接的孔槽，微型智能配气模块连接电路201和微型智能气体控制模块连接电路301通过相应孔槽分别连接到接口电路板600上的配气模块插座602和控制模块插座603。
各气路部件(气路***构成参见图11-图13所示)均连接至该接口电路板600，同时，接口电路板600通过接口电路板插头601与主控电路板700连接，主控电路板700通过接口电路板600对气路进行智能控制。其中：微型智能配气模块200的微型智能配气模块连接电路201、微型智能气体控制模块300的微型智能气体控制模块连接电路301通过下壳030中部凹槽底部后方的孔槽分别连接到接口电路板600上的配气模块插座602和控制模块插座603；微型智能压力接口模块400的微型智能压力接口模块连接电路401插装至接口模块插座606而连接至接口电路板600。
主控电路板700为电路集成板，整体装配于上壳010的内侧(图2、图3中位于上壳010的下方)。主控电路板700与接口电路板600间设置有支撑架050，支撑架050与主控电路板700、触摸显示屏800一起固定于上壳010内侧，接口电路板600通过支撑架050固定在主控电路板700下方。
结合图2-图4所示，主控电路板700上分布设置有显示屏插座705、触摸屏插座706(分别插接触摸显示屏800中的显示屏和触摸屏)、模块接口插座704(用于连接扩展的温度、压力等外接模块接口025)、USB接口和DC接口的组合插座707、接口电路板插座703(用于连接接口电路板600，接口电路板插头601与接口电路板插座703插装连接)、蓝牙模块708、WiFi模块702、核心电路板701(中心控制单元，加装商业化的***控制软件及压力校验配套软件)、存储器711、微动开关712，其上还包含有测量电路709(用于连接外部电测接口)，测量电路709位于控制电路板700的前方(校验仪使用时朝上为前，即图2、图3的左侧)；
测量电路709为校验仪同时实现电信号、以及与压力输出相关的电信号的测量功能而设计，其配合外部电测接口使用。参见图2、图3并结合图4-图7，外部电测接口为三个圆柱状对外电测接口022，安装在一电测口压板021上，通过电测口压板021将对外电测接口022压紧至上壳010前端面的测量插孔012内；对外电测接口022圆柱面外侧带有台阶面和卡楞028，台阶面前方设置有密封圈029(参见图6和图7)使对外电测接口022与测量插孔012形成密封；台阶面后方对该对外电测接口022的安装深度限位，卡楞28卡装于电测口压板021上对设的一凹槽内，对外部电测接口有防转作用。主控电路板700的测量电路709焊接有弹片713，弹片713通过螺钉与对外电测接口022固定，为防止弹片713的旋转，对外电测接口022的端面设置有方形凹槽三055，弹片713卡装于该凹槽三055内，当紧固弹片与对外电测接口022时，凹槽三055可防止已焊接至测量电路709的弹片713与紧固钉一起旋转，起到保护弹片与测量电路709连接处的焊点的作用。
DC接口023和USB接口024焊接在一连接电路板020上，将连接电路板020插装至主控电路板上的USB接口和DC接口的组合插座707，通过螺钉固定于电测口压板021；DC接口023、USB接口024从上壳010左侧外部电器接口安装孔015露出校验仪。
为了扩展对温度、压力的测量，另增设两个模块接口025(参见图3)，其固定在一安装板027后，通过螺钉将安装板027固定在上壳010右侧(按校验仪使用时的方向)外部电器接口安装孔015位置，并露出至校验仪外。
触摸显示屏800的数据线连接插装至显示屏插座705和触摸屏插座706，主控电路板700压紧触摸显示屏800和触摸屏托架801，与触摸显示屏800和触摸屏托架801一同安装于上壳010内侧方形通孔013；主控电路板700上的微动开关712与电源按钮014接触，电源按钮014通过操作微动开关712实现对校验仪的开/关操作。
主控电路板700上还设置有WiFi模块、蓝牙模块，连接至主控电路板的外部通讯接口上设置有USB接口，校验仪可以采用无线或有线通讯方式进行数据和报告的 导入、导出，DC接口可对校验仪供电或为可充电电池充电。
主控电路板700上还预留有扩展功能接口和外部电器接口，可从该接口处连接外部压力、温度等模块，拓展本发明校验仪的校验功能至其它需要参数的采集，扩展本发明校验仪的压力量程范围至本机压力发生能力范围外。
参见图37，主控电路板700上还连接有通信模块1000，通信模块100通过网络2000连接到数据库3000。通信模块1000完成主控电路板700与远程数据库3000之间的数据交互，具有远程通信功能。从实现形式上，可以是一段集成于主控电路板700中的通信程序，此时主控电路板700设置有网络接口以接入网络2000，也可以是独立的硬件模块，例如，通信模块1000具有连接插头和网络接口，连接插头用于与主控电路板700进行耦接以实现通信模块1000和主控电路板700之间的机械连接和电连接，网络接口连接到网络2000中，通过网络2000接入数据库3000，其中，网络2000为基于Internet的工业以太网，也可以是支持Internet连接的其他无线网络，可以实现远程通信功能。
通信模块1000集成在校验仪内部，使得该校验仪自带远程通信功能，省去了中间通信媒介，只要接入其所支持的网络，通过简单设置就能连接到远程数据库3000，可以实时从数据库下载预存储的被校压力仪表基本信息(包括被检压力仪表的量程、精度、ID编号和制造厂等信息)、被检压力仪表的历史校准数据(包括所有压力校准点的压力示值、压力示值误差或所有压力校准点的压力示值、压力示值误差、电流值、电流示值误差等)和校准方案(包括实施校准操作的自动校准程序)，从而实现被检压力仪表校准数据的自动生成，并将校准数据通过网络2000实时上传至数据库3000。
参见图37，主控电路板700还可电连接相机组件，该相机组件包括相机4000、设置在相机4000上的摄像头5000以及植入到主控电路板700中的图像识别程序，该摄像头正对被检压力仪表的正面外观，可以拍摄到该被检压力仪表的表盘上显示的数据、型号信息及其外观特征，所拍摄的照片经由相机4000传输到主控电路板700，预先植入到主控电路板700中的图像识别程序对所拍摄的照片进行图像识别，从而获取被检压力仪表型号及被校压力仪表基本信息，例如：被校压力仪表的量程、精度、编号和制造厂等信息，并可通过主控电路板700控制通信模块1000传送至远程数据库3000。
可充电电池900
参见图2和图3，可充电电池900两侧设置有导轨槽901，中部设置有电池插座902，后方设置有电池凹槽903。下壳030中部设置有凹槽一032，凹槽前方侧面设 置有通孔，凹槽底部后方设置有通孔；下壳后部两侧设置有电池安装导轨034，导轨中间设置有凹槽二033，凹槽底部设置有通孔，接口电路板600的电池插头604从凹槽底部通孔露出；下壳后部设置有T形凹槽035，T形凹槽035的T字末端连通至下壳后侧面，T型凹槽035内设置可旋转的T形电池锁钮，T形电池锁钮的T字横端为半圆柱，T字末端为圆柱。
电池两侧导轨槽901插装至下壳后方两侧电池安装导轨034后使电池左右方向固定；向前推动电池至极限后，导轨使电池上下方向固定，电池插座902与接口电路板上的电池插头604连接；从中盖后方旋转T形电池锁钮的圆柱部分180°后，半圆柱部分的半圆凸起从下壳T形凹槽035旋转至电池凹槽903，使可充电电池900前后方向固定；最终电池实现固定并与下盖040端面压紧。可充电电池为大容量电池，可持续长时间供电，方便现场校验工作。
结合图2、图11-图13，本发明手持全自动压力校验仪各部分如下装配：
先将电测接口022固定在上壳010的测量插孔012内，将触摸显示屏800连接至主控电路板700，放入上壳010内侧，弹片713连接电测接口022，将接口电路板600固定在主控电路板700后下侧，微型智能压力接口模块400位于主控电路板700后上侧固定在上壳010内侧，在上壳010左、右两侧安装连接电路板020和模块接口025，盖上下壳030，将标准压力模块500通过下壳030的通孔二031安装于微型智能压力接口模块400上，标准压力模块500的气路接口与微型智能压力接口模块400的气路接口对接；下壳030后侧上部安装微型智能压力控制模块300，微型智能压力控制模块300的控制模块压力接头302连通微型智能压力接口模块400的压力输入口；再叠装微型智能配气模块200(包含微型气泵100)，微型智能配气模块200的压力输出口和真空输出口与微型智能压力控制模块300的对应的压力和真空接口插装并连通；安装下盖040，可充电电池900安装在下壳030后侧下部。
手持全自动压力校验仪工作过程：
1).连接被检仪表，包括气路连接，还包括通过电测接口022连接被检表的电信号输出端；
2).开机，通过触摸屏设定所需压力；
3).确定压力后，校验仪自动工作，其中：
微型气泵100启动，根据设定压力输出增压气体或真空至微型智能配气模块200的气容234/236；
微型智能压力控制模块300一方面对微型智能配气模块200的气容进行压力或 真空测量，当达到所需的压力时，控制微型气泵100停止供气；另一方面通过进气或排气控制电磁阀根据标准压力模块500给出的压力值调整微型智能压力接口模块400的输出压力以达到设定压力；
4).读取被检压力仪表的压力值并输出，被检压力仪表输出的电信号可直接获取，按规程计算完成对被检压力仪表一个压力点的检测并记录。自动重复完成对多个压力点的检测与记录；
5).存储此次压力检测任务，判别被检压力仪表是否合格，输出检测报告。
本发明手持全自动压力校验仪中，触摸显示屏采用用户友好型界面进行人机交互操作，降低用户的学习难度；用户从触摸显示屏界面进行该校验仪的所有校验过程的操作。从触摸显示屏操作手持全自动校验仪的电路***，实现对电路***和气路***的智能控制，通过电路***，控制智能气路***，实现电路***对被检仪表电路的供电、电信号检测、电信号调试处理，实现气路***的智能造压、配气、控压、泄压、排污等操作。完成对仪表压力、电信号的校验。同时主控电路板还可对来自各部分的电信号、压力信号、校验数据进行记录，计算校验结果、储存校验记录和输出校验报告。其具有以下特点：
A.手持全自动校验仪采用模块化设计，校验仪壳体内部集成有气路部件、电路部件，可充电电池从壳体外部安装。气路部件由微型智能配气模块(包含微型气泵)、微型智能压力控制模块、微型智能压力接口模块和标准压力模块组成。电路部件由触摸显示屏、主控电路板、接口电路板、对外电测接口、外部电器接口组成。各部件根据功能进行了模块化设计，模块更换方便，易于维修和维护。
B.壳体整体轻巧，手持方便、舒适；整机体积小、重量轻，适于手持，携带方便，便于现场进行校验工作。
壳体的上壳四周侧面、下壳四周侧面均采用包裹弹性材料设计，包裹弹性材料过渡到上壳前上方斜面、下壳前下方斜面以及斜面通孔内，安装时壳体与斜面通孔内安装零件间形成密封。上壳与下壳、下盖结合处采用凸楞设计，保证壳体的密封，电路部件以及气路部件的压力接口模块安装在上壳与下壳间。上壳前方斜面开设有通孔，上方开设有方形通孔用于安装触摸显示屏，方形通孔前方开设有圆孔用于安装对外电测接口，方形通孔后方设置有电源按钮安装孔，电源按钮的法兰盘与上壳的电源按钮安装孔压紧形成密封，上壳左右设置有对外电器接口安装孔，安装孔安装对外电器接口后用不脱防水盖密封。壳体各部位的密封使本发明手持全自动校验仪整机形成较高级别的防水防尘密封。
C.触摸显示屏周边通过防水泡棉与方孔形成密封后与触摸屏托架叠加从上壳 内侧安装于上壳长方孔周边的凹槽内。主控电路板的上设置有显示屏插座、触摸屏插座、模块接口插座、USB接口和DC接口的组合插座、控制电路板插座。触摸显示屏的数据线连接至主控电路板后，主控电路板压紧触摸显示屏，接口电路板上的微动开关与电源开关接触，电源开关通过操作微动开关实现开/关操作；主控电路板上还设置有蓝牙模块、Wifi模块、核心电路板。主控电路板与接口电路板间设置有支撑架，支撑架与主控电路板、触摸显示屏一同固定于上壳内；接口电路板通过支撑架与主控电路板固定上；同时，接口电路板通过接口电路板插头与主控电路板连接。
D.主控电路板上包含测量电路，对外电测接口连接至测量电路；外部电器接口、触摸显示屏、接口电路板均连接主控电路板；微型智能配气模块(包含微型气泵)、微型智能压力控制模块、微型智能压力接口模块组成模块化的智能气路***。模块化智能气路***各部件连接至接口电路板，接口电路板与主控电路板插装连接。
E.触摸显示屏采用用户友好型界面进行人机交互操作，降低用户的学习难度；用户从触摸显示屏界面进行该校验仪的所有校验过程的操作。从触摸显示屏操作手持全自动校验仪的电路***，实现对电路***和气路***的智能控制，通过电路***，控制智能气路***，实现电路***对被检仪表电路的供电、电信号检测、电信号调试处理，实现气路***的智能造压、配气、控压、泄压、排污等操作。完成对仪表压力、电信号的校验。同时主控电路板还可对来自各部分的电信号、压力信号、校验数据进行记录，计算校验结果、储存校验记录和输出校验报告。
F.对外电测接口安装至安装座后，对外电测接口与上壳上的圆孔通过密封圈密封，并通过弹片连接至主控电路板的测量电路，弹片卡入对外对外电测接口下方的凹槽内，电测插孔有止转作用。对外对外电测接口连接至主控电路板后，通过安装座安装在上壳上方圆孔内。USB接口、DC接口连接至电测口压板上的连接电路板上后，插装至主控电路板上的USB接口与DC接口的组合插座，同时从上盖侧面安装孔露至校验仪外部；两个模块接口安装至上盖另一侧面，从侧面安装孔露至校验仪外部，同时电路一同连接至主控电路板上的模块接口插座。两侧面安装孔通过防水盖密封。
主控电路板上设置的Wifi模块、蓝牙模块，连接至主控电路板的外部通讯接口上设置有USB接口，校验仪可以采用无线或有线通讯方式进行数据和报告的导入、导出，DC接口可对校验仪供电或为可充电电池充电。两个模块接口连接至主 控电路板，从接口模块处连接外部压力、温度等模块拓展本发明校验仪的校验功能至，其它需要参数的采集，扩展本发明校验仪的压力量程范围至本机压力发生能力范围外。
G.接口电路板上设置有配气模块插座、控制模块插座、接口模块插座、电池插头、测试插座。各气路部件均连接至控制模块，控制模块对气路进行智能控制。接口模块通过挂钩式固定座安装至上壳内，其压力接口和压力参考接口从上壳前方斜面通孔伸出校验仪，标准压力模块安装座与下盖前方斜面通孔配合，从下壳前方斜面通孔可更换安装标准压力模块。本发明可更换安装于压力接口模块上的不同精度、不同量程、不同类型(绝压、差压、表压)的标准压力模块。实现对不同压力仪表的校验。
H.气路部件的微型智能配气模块、微型智能压力接口模块安装在下壳与下盖间。下壳后部设置的凹槽二能使接口电路板的电池插头从凹槽底部通孔露出。
I.下盖内有一平面，平面内前方设置有吸气孔组和排气孔组，吸气孔位置设有过滤器。微型智能配气模块插装至微型智能压力控制模块后一同安装于下壳中部凹槽内；微型智能配气模块和微型智能压力控制模块的电路通过下盖中部凹槽底部后方的通孔分别连接到主控电路板；微型智能压力控制模块上的连接头通过下壳中部凹槽前方侧面的通孔插装到微型智能压力接口模块的气源接口，为接口供气。下盖安装至下壳后内部平面压紧微型智能配气模块上的密封缓冲垫形成密封。下盖上的吸气孔与排气孔分别连接至密封缓冲垫上的两个异型通孔。
J.下壳后部两侧设置有电池安装导轨，可充电电池两侧设置有导轨槽，导轨与导轨槽插装使电池左右方向、上下方向固定；电池锁钮、下壳T形凹槽与电池凹槽配合使可充电电池前后方向固定。
本发明能产生以下有益效果：
(1)、本发明是一款手持式的全自动校验仪，体积小、重量轻，适用于手持，适合携带至仪表服役现场进行校验工作。
(2)、触摸显示屏采用用户友好型界面进行人机交互操作，降低用户的学习难度；用户从触摸显示屏界面进行该校验仪的所有校验过程的操作。
(3)、能实现智能造压、配气、控压、泄压，满足对绝压仪表、差压仪表、表压仪表的校验。
(4)、可测量电信号与压力信号的电信号。主控电路板可对电信号或压力信号的电信号进行记录，并与标准信号对比、计算校验结果、得出校验报告。
(5)、主控电路板上设置有Wifi模块、蓝牙模块，连接至主控电路板的外部电测接口上设置有USB接口，可对校验仪进行数据和报告的导入、导出。
(6)、外部电测接口上设置有两个模块接口，可拓展本发明校验仪的校验功能范围至温度校验，拓展本发明校验仪的压力、电信号的校验量程范围至额定量程范围外。
(7)、本发明手持式全自动校验仪自带可充、大容量电供电电池，可持续长时间供电，方便现场校验工作。
工业应用性
本发明提供一种手持全自动压力校验仪，将气路部件的各组成部分、电路部件的各组成部分以模块方式集成装配于一壳体内，结构紧凑，能够工业制造，该压力校验仪体积小、重量轻，适用于手持，能携带至仪表服役现场进行校验工作，适于工业应用。

Claims (38)

  1. 手持全自动压力校验仪，包括壳体以及装配在壳体中的气路部件和电路部件，所述气路部件包括能够提供压力气体的压力源，所述气路部件的各组成部分、电路部件的各组成部分以模块方式集成装配于所述壳体内，且校验仪整体外形适于手持。
  2. 根据权利要求1所述手持全自动压力校验仪，所述气路部件的组成部分包括有：
    组合有微型气泵(100)的微型智能配气模块(200)，其为压力校验仪提供增压气体和真空，其中所述微型气泵(100)用作所述压力源；
    微型智能压力控制模块(300)，其控制和调节来自微型智能配气模块(200)的增压气体和真空；
    标准压力模块(500)，其为压力校验仪提供基准压力；和
    微型智能压力接口模块(400)，其连接所述微型智能压力控制模块(300)和标准压力模块(500)；
    所述微型智能配气模块(200)的正压连接头(240)和真空连接头(245)与微型智能压力控制模块(300)对应的压力气体接口(72)和真空接口(80)插装并连通,微型智能压力控制模块(300)的控制模块压力接头(302)连通微型智能压力接口模块(400)的气压输入接口(415),标准压力模块(500)的气路接口与微型智能压力接口模块(400)的气路接口对接。
  3. 根据权利要求1或2所述手持全自动压力校验仪，其中：所述电路部件包括有：用于连接气路部件的各电路的接口电路板(600)、用于整机运行控制的主控电路板(700)，用于输入、输出的触摸显示屏(800)以及对外电测接口(022)和外部电器接口安装孔(015)，电路部件的电路以及可充电电池(900)与主控电路板(700)电连接。
  4. 根据权利要求3所述手持全自动压力校验仪，其中：所述壳体包括上壳(010)、下壳(030)和下盖(040)；上壳(010)和下壳(030)扣合形成适于手持的校验仪主体，主体内部空间中装配有所述微型智能压力接口模块(400)、标准压力模块(500)、主控电路板(700)、接口电路板(600)和触摸显示屏(800)；下盖(040)安装于下壳(030)外侧的上部，下盖(040)与下壳(030)形成的内部空间中装配有微型智能配气模块(200)和微型智能压力控制模块(300)；可充电电池(900)装配于下壳(030)外侧的下部。
  5. 根据权利要求4所述手持全自动压力校验仪，其特征在于：所述上壳(010) 为上大下小的楔形盖，上部端面为斜面，该斜面上设有通孔一(011)用于装配微型智能压力接口模块(400)上的压力接头(403)和压力参考接头(414)并使其露出壳体；上壳(010)向外的平面设置有一个用以容纳触摸显示屏(800)的方形通孔(013)；方形通孔(013)上方设置有三个圆形对外测量插孔(012)，下方有一个圆孔用于安装电源按钮(014)；上壳(010)左右两侧设置有外部电器接口安装孔(015)；
    下壳(030)为上大下小的楔形托，其上部端面为斜面，该斜面上有通孔二(031)用于安装微型智能压力接口模块400的标准压力模块安装座406)；
    上壳(010)周边缘端与下壳(030)结合处设有凹槽(018)，对应下壳(030)周边缘端与上壳(010)结合处设有凸楞(036)，凸楞(036)与凹槽(018)密合。
  6. 根据权利要求1至5任一项所述手持全自动压力校验仪，其中：所述微型智能配气模块(200)包括微型气泵(100)和气源端块(280)，其中，气源端块(280)与微型气泵(100)相连接并气路连通，微型气泵(100)内设有吸入外界气体的一级吸气管路(114)和输出压力气体的二级排气管路(122)，气源端块(280)设有正压气容(234)和真空气容(236)，两气容和微型气泵(100)的两管路(114、122)连通并通过设于气源端块(280)中的微型电磁阀即V1阀、V2阀和V3阀控制。
  7. 根据权利要求6所述手持全自动压力校验仪，其中：气源端块(280)包括阀岛(230)，阀岛内部分隔设置有两个较大容腔分别用作正压气容(234)和真空气容(236)，容腔顶部用顶盖(246)密封；阀岛内部分隔设置有三个较小容腔分别放置所述V1阀、V2阀和V3阀，正压气容(234)、真空气容(236)和三个电磁阀之间通过管路连接。
  8. 根据权利要求2至7任一所述手持全自动压力校验仪，其中，微型气泵(100)为缸体导向微型增压式电动气泵，其包括泵体座(108)、与泵体座连接的电机座(102)及电机、由电机带动的偏心轴(104)、与偏心轴连动的连杆(105)、一级缸体(1081)、二级缸体(106)、穿设在一级缸体和二级缸体之中与连杆同步移动的活塞杆(110)以及设于两缸体外端的多个单向阀。
  9. 根据权利要求8所述手持全自动压力校验仪，其中：所述泵体座(108)的两端形成一级缸体(1081)和二级缸体支撑座(1082)，二级缸体(106)装配于二级缸体支撑座(1082)内侧且与一级缸体(1081)同轴线；二级缸体(106)体积小于一级缸体(1081)的体积，且一级缸体(1081)的一级排气管路(117)与 二级缸体(106)的二级吸气管路(120)连通；
    活塞杆(110)两端设活塞一级端(1101)和活塞二级端(1102)，活塞一级端与一级缸体(1081)配合，活塞二级端伸入二级缸体(106)内与二级缸体配合。
  10. 根据权利要求9所述手持全自动压力校验仪，其中：所述二级缸体(106)为中空柱体，柱体内表面设有垂直于二级缸体(106)轴向的第一台阶面(1062)，第二组合密封件(107)装配于该第一台阶面(1062)处，泵体座(108)的侧面抵顶该第二组合密封件(107)；
    所述第一台阶面(1062)使得所述二级缸体(106)的内表面形成彼此连通的第一级通孔(1061)和第二级通孔(1066)，第一级通孔(1061)的直径大于第二级通孔(1066)的直径，第一级通孔(1061)的内表面、第一台阶面(1062)以及活塞杆(110)的活塞二级端(1102)外表面共同形成一环形凹槽，该环形凹槽中放置第二组合密封件(107)；泵体座(108)与二级缸体(106)连接处设有一对相互对应的凸出部(1083)用于抵挡第二组合密封件(107)。
  11. 根据权利要求10所述手持全自动压力校验仪，其中：所述二级缸体(106)的外表面至少设有第二台阶面(1063)，一密封圈抵接于该第二台阶面(1063)，电机座(104)的侧面抵顶该密封圈；或者，
    所述二级缸体(106)的外表面设有第三台阶面(1064)和第四台阶面(1065)两级台阶，第三台阶面(1064)距离二级缸体(106)的中心轴距离小于第四台阶面(1065)距离二级缸体(106)的中心轴的距离，一密封圈(128)抵接于该第三台阶面(1064)，电机座(104)的侧面抵顶该密封圈(128)以及第四台阶面(1065)。
  12. 根据权利要求9至11任一所述手持全自动压力校验仪，其中：活塞一级端(1101)的端面面积大于活塞二级端(1102)的端面面积，相应的一级缸体(1081)的轴向横截面面积大于二级缸体(106)的轴向横截面面积。
  13. 根据权利要求12所述手持全自动压力校验仪，其中：
    一级缸体(1081)外端依次设有缸体垫(112)、反向装配的一级吸气单向阀(115)和一级排气单向阀(116)以及端盖(113)，一级吸气单向阀(115)和一级排气单向阀(116)与一级缸体(1081)内腔连通，端盖(113)上的一级吸气管路(114)连接外界气体并与一级吸气单向阀(115)相连通，端盖(113)上的一级排气管路(117)与一级排气单向阀(116)相连通，并通过一过渡管路(119)与二级缸体(106)的二级吸气管路(120)连通；
    二级缸体(106)外端分设有二级吸气管路(120)和二级排气管路(122)，二级吸气管路(120)入口前安装有用于控制进气的二级吸气单向阀(121)，一级 缸体(1081)的一级排气管路(117)通过置于阀岛(130)内的过渡管路(119)和该二级吸气单向阀(121)与二级吸气管路(120)连通；二级排气管路(122)出口安装用于控制出气的二级排气单向阀(123)。
  14. 根据权利要求6至13任一项所述手持全自动压力校验仪，其中，设于气源端块(280)中的V3阀为二位三通电磁阀，其包括V3阀第一通气孔(2331)、V3阀第二通气孔(2332)和V3阀第三通气孔(2333)，其中V3阀第三通气孔(2333)连通至外界大气，V3阀第二通气孔(2332)与微型电泵(100)的一级吸气管路(114)连通，V3阀第一通气孔(2331)通过气流管路一(238)与真空气容(236)连通；
    设于气源端块(280)中的V1阀为二位二通电磁阀，其包括V1阀第一通气孔(2311)和V1阀第二通气孔(2312)，其中V1阀第一通气孔(2311)连通至外界大气，V1阀第二通气孔(2312)与微型气泵(100)的二级排气管路(122)连通；
    设于气源端块(280)中的V2阀为二位二通电磁阀，包括V2阀第一通气孔(2321)和V2阀第二通气孔(2322)，其中V2阀第一通气孔(2321)与微型气泵(100)的二级排气管路(122)连通，V2阀第二通气孔(2322)与正压气容(234)连通。
  15. 根据权利要求14所述手持全自动压力校验仪，其中：阀岛(230)外表面铺设有一密封缓冲垫(241)，密封缓冲垫开设有第一异形通孔(2411)，第一异形通孔(2411)通过V3阀第三通气孔(2333)与一级吸气管路(114)连通；密封缓冲垫的外侧贴合下盖(040)，下盖(040)与第一异形通孔(2411)对应位置处各设有由多个通气孔组成的吸气通孔(042)，一过滤器(041)设置在第一异形通孔(2411)内；
    密封缓冲垫(41)还设有第二异形通孔(2412)，第二异形通孔(2412)通过V1阀第一通气孔(2311)与二级排气管路(122)连通；下盖(040)与第二异形通孔(2412)对应位置处设有由多个通气孔组成的排气通孔(043)。
  16. 根据权利要求1至15任一所述手持全自动压力校验仪，其中：微型智能压力控制模块(300)包括一控制阀岛(61)以及集成到所述控制阀岛上的压力传感器(69)、真空传感器(67)、电路板(63)、进气控制电磁阀(64)、排气控制电磁阀(66)、第四电磁阀(65)、压力气体接口(72)、真空接口(80)以及气道接头，其中：
    所述控制阀岛内部设置有由管道孔形成的多个管路；
    压力传感器(69)和真空传感器(67)均与电路板(63)电连接；
    所述压力气体接口(72)、压力传感器(69)、进气控制电磁阀(64)与气道接头通过所述多个管路连接；
    所述真空接口(80)、真空传感器(67)、第四电磁阀(65)、排气控制电磁阀(66)与气道接口通过所述多个管路连接。
  17. 根据权利要求16所述手持全自动压力校验仪，其中：所述气道接头是由第一接头(81)、连接头(82)和控制模块压力接头(302)依次连接形成，第一接头为中空管状结构，其与连接头的一端连接，连接头的另一端与控制模块压力接头(302)以插装方式连接，第一接头(81)和控制模块压力接头(302)端口内部均设置有密封圈。
  18. 根据权利要求16所述手持全自动压力校验仪，其中：所述压力传感器、真空传感器、电路板电连接到一总电路接口，所述进气控制电磁阀、排气控制电磁阀和第四电磁阀通过连接线电连接至所述总电路接口，所述总电路接口连接至接口电路板(600)。
  19. 根据权利要求16或17或18所述手持全自动压力校验仪，其中：所述进气控制电磁阀和排气控制电磁阀为微型高精度气流控制阀，都设有第一端口和第二端口；第四电磁阀为二位三通电磁阀，设有第四电磁阀第一通气孔(651)、第四电磁阀第二通气孔(652)和第四电磁阀第三通气孔(653)；所述第四电磁阀在断电状态下，第四电磁阀的第四电磁阀第二通气孔(652)和第四电磁阀第三通气孔(653)连通；第四电磁阀处于通电状态下，第四电磁阀第一通气孔(651)和第四电磁阀第二通气孔(652)连通，第四电磁阀第二通气孔(652)和第四电磁阀第三通气孔(653)断开。
  20. 根据权利要求16至19任一所述手持全自动压力校验仪，其中：
    所述压力气体接口(72)固定于控制阀岛(61)的一侧，一端位于控制阀岛的表面，与微型智能配气模块(200)的正压连接头(240)对位插装密封连接，压力气体接口(72)的另一端位于控制阀岛的内部，与第一压力管路(73)连通；压力传感器(69)设置有第一端口和第二端口，其第一端口与第一压力管路(73)相连通，其第二端口与第二压力管路(74)相连通；进气控制电磁阀(64)设有第一端口和第二端口，其第一端口与第二压力管路(74)相连通，其第二端口与第三压力管路(75)相连通；第三压力管路(75)与第四压力管路(76)相连通；第四压力管路(76)还分别与排气控制电磁阀(66)的第二端口以及第一接头(81)相连通；
    所述真空接口(80)固定于控制阀岛(61)的一侧，一端位于控制阀岛的表 面，与微型智能配气模块(200)的真空连接头(245)对位插装密封连接，真空接口的另一端位于控制阀岛的内部，与第一真空管路(78)连通；真空传感器(67)设有第一端口和第二端口，其第一端口与第一真空管路(78)相连通，其第二端口与第四电磁阀的第四电磁阀第一通气孔(651)相连通；第四电磁阀的第四电磁阀第二通气孔(652)与阀后排气管路(77)相连通，第四电磁阀第三通气孔(653)连通至大气；阀后排气管路(77)与排气控制电磁阀(66)的第一端口连接，排气控制电磁阀的第二端口与第四压力管路(76)相连通，第四压力管路与第一接头(81)连接。
  21. 根据权利要求2至20任一所述手持全自动压力校验仪，其中：所述微型智能压力接口模块(400)包括接头座(402)，接头座用于装配标准压力模块(500)，接头座上设置有压力接头(403)、压力参考接头(414)和气压输入接口(415)，气压输入接口通过位于接头座内的气流管路与压力接头、压力参考接头和标准压力模块相连通，所述压力接头和压力参考接头与外接被测压力仪表连接，其中，所述接头座(402)包括向两个不同方向延伸的第一柱体结构和第二柱体结构，具有三个连接面，即两个柱体结构的交接处设有气压输入连接面，气压输入接口(415)设置在所述气压输入连接面上；第一柱体结构的端部设有接头连接面，所述压力接头(403)和参考压力接头(414)设置在所述接头连接面上；第二柱体结构的端部设有标准压力模块连接面，所述标准压力模块(500)装配在所述标准压力模块连接面上。
  22. 根据权利要求21所述手持全自动压力校验仪，其中：所述接头座(402)内部还设有压力参考腔(408)、气液分离室(407)和第一电磁阀(409)，第一电磁阀布置在所述压力接头(403)和气液分离室之间，压力接头通过第一气流管路(421)和第一电磁阀第二通气孔(424)与气液分离室连通，所述气液分离室直接与气压输入接口(415)连通；气液分离室通过第一电磁阀和第四气流管路(420)与压力参考腔连通，压力参考腔与压力参考接头(414)相连通。
  23. 根据权利要求22所述手持全自动压力校验仪，其中：所述气液分离室的外侧通过一放气阀座(404)密封，放气阀座内部设置有第二电磁阀(410)，第二电磁阀的第二电磁阀第二通气孔(426)通过第一气流管路(421)与气液分离室(407)连通，第二电磁阀的第二电磁阀第一通气孔(425)与大气相连通。
  24. 根据权利要求23所述手持全自动压力校验仪，其中：所述压力接头(403)和压力参考接头(414)的内部端口位置分别设置有除污过滤器(413)。
  25. 根据权利要求24所述手持全自动压力校验仪，其中：所述接头座(402) 上的标准压力模块连接面上设置有一模块压力接口(416)和一模块压力参考接口(417)，模块压力参考接口与压力参考腔(408)直接连通，模块压力接口通过一第三气流管路(419)与气液分离室(407)相连通。
  26. 根据权利要求25所述手持全自动压力校验仪，其中：所述接头座(402)上的标准压力模块连接面上还安装有标准压力模块安装座(406)，所述标准压力模块安装座为具有L形台阶孔的柱体结构，L形台阶孔较深的一侧与接头座的标准压力模块安装座连接面连接，L形台阶孔较浅的一侧台阶上设置有一通槽，所述通槽上部安装有第二电路板(405)，一通讯插头(412)穿过所述通槽与第二电路板电连接，一插座(411)电连接至所述通讯插头。27、根据权利要求26所述手持全自动压力校验仪，其中：所述标准压力模块(500)为差压模块，差压模块从所述标准压力模块安装座(406)中插装至接头座(402)上，差压模块的压力接口(505)插装至接头座的模块压力接口(416)中，压力参考接口(514)插装至模块压力参考接口(417)中，差压模块的密封圈(504)对上述各接口连接处形成密封，接头座上的通讯插头(412)插装至差压模块的通讯插座(508)中，差压模块的第一电路板(502)与接头座上的第二电路板(405)电连接，差压模块的不脱螺钉(506)将差压模块固定于接头座(402)上；或
    所述标准压力模块为绝压模块，绝压模块的压力接口(505)插装至接头座的模块压力接口(416)中，绝压模块的密封圈(504)对上述接口连接处形成密封，接头座上的通讯插头(412)插装至绝压模块的通讯插座(508)中，绝压模块的第一电路板(502)与接头座上的第二电路板(405)电连接，压力模块的不脱螺钉将绝压模块固定于接头座(402)上；或
    所述标准压力模块为表压模块，表压模块的压力接口(505)插装至接头座的模块压力接口(416)中，表压模块的密封圈(504)对上述接口连接处形成密封，接头座上的通讯插头(412)插装至表压模块的通讯插座(508)中，表压模块的第一电路板(502)与接头座上的第二电路板(405)电连接，压力模块的不脱螺钉将表压模块固定于接头座(402)上。
  27. 根据权利要求3至27任一所述手持全自动压力校验仪，其中：接口电路板(600)分布设置有接口电路板插头(601)用于连接主控电路板(700)，配气模块插座(602)用于连接微型智能配气模块(200)的电路(201)，控制模块插座(603)用于连接微型智能气体控制模块(300)的电路(301)，电池插头(604)用于连接充电电池(900)、接口模块插座(606)用于连接微型智能压力接口模块(400)的电路(401)。
  28. 根据权利要求3至28任一所述手持全自动压力校验仪，其中：主控电路板(700)上分布设置有显示屏插座(705)、触摸屏插座(706)分别插接触摸显示屏(800)中的显示屏和触摸屏，模块接口插座(704)用于连接扩展的温度、压力等外接模块接口(025)、USB接口(024)和DC接口(023)的组合插座(707)、接口电路板插座(703)用于连接接口电路板(600)，核心电路板(701)以及蓝牙模块(708)、Wifi模块(702)、存储器(711)和微动开关(712)等。
  29. 根据权利要求3至29任一所述手持全自动压力校验仪，其中：主控电路板(700)上还包含有测量电路(709)用于连接外部电测接口，所述外部电测接口为多个对外电测接口(022)，安装在一电测口压板(021)上，并压紧至上壳(010)前端面的测量插孔(012)内。
  30. 根据权利要求28或29或30所述手持全自动压力校验仪，其中：主控电路板(700)与接口电路板(600)间通过支撑架(050)连接，支撑架(050)与主控电路板(700)、触摸显示屏(800)整体装配于上壳(010)内侧。
  31. 根据权利要求3至31任一所述手持全自动压力校验仪，其中，主控电路板(700)上还连接有通信模块(1000)，通信模块(1000)通过网络(2000)连接到数据库(3000)。
  32. 根据权利要求3至32任一所述手持全自动压力校验仪，其中，主控电路板(700)电连接相机组件，该相机组件包括相机(4000)、设置在相机上的摄像头(5000)以及植入到主控电路板(700)中的图像识别程序，摄像头正对被检压力仪表的正面外观以拍摄该被检压力仪表的表盘上显示的数据、型号信息及其外观特征。
  33. 一种缸体导向微型增压式电动气泵，其包括泵体座(108)、与泵体座连接的电机座(102)及电机、由电机带动的偏心轴(104)、与偏心轴连动的连杆(105)、一级缸体(1081)、二级缸体(106)、穿设在一级缸体和二级缸体之中与连杆同步移动的活塞杆(110)以及设于两缸体外端的多个单向阀。
  34. 根据权利要求34所述缸体导向微型增压式电动气泵，其中：所述泵体座(108)的两端形成一级缸体(1081)和二级缸体支撑座(1082)，二级缸体(106)装配于二级缸体支撑座(1082)内侧且与一级缸体(1081)同轴线；二级缸体(106)体积小于一级缸体(1081)的体积，且一级缸体(1081)的一级排气管路(117)与二级缸体(106)的二级吸气管路(120)连通；
    活塞杆(110)两端设活塞一级端(1101)和活塞二级端(1102)，活塞一级端与一级缸体(1081)配合，活塞二级端伸入二级缸体(106)内与二级缸体配合。
  35. 根据权利要求35所述缸体导向微型增压式电动气泵，其中：所述二级缸体(106)为中空柱体，柱体内表面设有垂直于二级缸体(106)轴向的第一台阶面(1062)，第二组合密封件(107)装配于该第一台阶面(1062)处，泵体座(108)的侧面抵顶该第二组合密封件(107)；
    所述第一台阶面(1062)使得所述二级缸体(106)的内表面形成彼此连通的第一级通孔(1061)和第二级通孔(1066)，第一级通孔(1061)的直径大于第二级通孔(1066)的直径，第一级通孔(1061)的内表面、第一台阶面(1062)以及活塞杆(110)的活塞二级端(1102)外表面共同形成一环形凹槽，该环形凹槽中放置第二组合密封件(107)；泵体座(108)与二级缸体(106)连接处设有一对相互对应的凸出部(1083)用于抵挡第二组合密封件(107)。
  36. 根据权利要求36所述缸体导向微型增压式电动气泵，其中：所述二级缸体(106)的外表面至少设有第二台阶面(1063)，一密封圈抵接于该第二台阶面(1063)，电机座(104)的侧面抵顶该密封圈；或者，
    所述二级缸体(106)的外表面设有第三台阶面(1064)和第四台阶面(1065)两级台阶，第三台阶面(1064)距离二级缸体(106)的中心轴距离小于第四台阶面(1065)距离二级缸体(106)的中心轴的距离，一密封圈(128)抵接于该第三台阶面(1064)，电机座(104)的侧面抵顶该密封圈(128)以及第四台阶面(1065)。
  37. 根据权利要求34至37任一所述缸体导向微型增压式电动气泵，其中：活塞一级端(1101)的端面面积大于活塞二级端(1102)的端面面积，相应的一级缸体(1081)的轴向横截面面积大于二级缸体(106)的轴向横截面面积。
  38. 根据权利要求38所述缸体导向微型增压式电动气泵，其中：
    一级缸体(1081)外端依次设有缸体垫(112)、反向装配的一级吸气单向阀(115)和一级排气单向阀(116)以及端盖(113)，一级吸气单向阀(115)和一级排气单向阀(116)与一级缸体(1081)内腔连通，端盖(113)上的一级吸气管路(114)连接外界气体并与一级吸气单向阀(115)相连通，端盖(113)上的一级排气管路(117)与一级排气单向阀(116)相连通，并通过一过渡管路(119)与二级缸体(106)的二级吸气管路(120)连通；
    二级缸体(106)外端分设有二级吸气管路(120)和二级排气管路(122)，二级吸气管路(120)入口前安装有用于控制进气的二级吸气单向阀(121)，一级缸体(1081)的一级排气管路(117)通过置于阀岛(130)内的过渡管路(119)和该二级吸气单向阀(121)与二级吸气管路(120)连通；二级排气管路(122)出口安装用于控制出气的二级排气单向阀(123)。
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