CN220622754U - High-precision pneumatic regulating valve - Google Patents
High-precision pneumatic regulating valve Download PDFInfo
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- CN220622754U CN220622754U CN202321902603.1U CN202321902603U CN220622754U CN 220622754 U CN220622754 U CN 220622754U CN 202321902603 U CN202321902603 U CN 202321902603U CN 220622754 U CN220622754 U CN 220622754U
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- valve body
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- 230000001105 regulatory effect Effects 0.000 title abstract description 12
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 3
- 238000007789 sealing Methods 0.000 claims description 7
- 210000000056 organ Anatomy 0.000 claims description 3
- 210000003437 trachea Anatomy 0.000 claims 3
- 238000010030 laminating Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 12
- 230000000875 corresponding effect Effects 0.000 description 4
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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- Fluid-Driven Valves (AREA)
Abstract
The utility model relates to a high-precision pneumatic regulating valve, which comprises a valve body, a valve core, a valve rod and a pneumatic actuator, wherein the valve core is arranged in the valve body, the bottom end of the valve rod is fixed on the valve core, the pneumatic actuator is in transmission connection with the valve rod, the bottom of the valve body is provided with a through hole, the through hole is communicated with a water inlet cavity of the valve body, an installation seat is connected in the through hole through a bolt, the upper end surface of the installation seat corresponds to the position of the valve core, a sliding hole is formed in the sliding hole, the sliding rod is internally and slidably connected with a sliding rod, the top end of the sliding rod is fixed on the valve core, a limiting ring is coaxially fixed on the side wall of the sliding rod, the side wall of the sliding hole is provided with an installation groove, auxiliary components are symmetrically arranged at the top and the top in the installation groove, and the working end of the auxiliary components is matched with the limiting ring; the auxiliary assembly and the control mechanism are designed, so that the closing and opening time of the valve core can be shortened, and the precision of the regulating valve is improved.
Description
Technical Field
The utility model relates to the technical field of regulating valves, in particular to a high-precision pneumatic regulating valve.
Background
The pneumatic regulating valve takes compressed gas as a power source, takes an air cylinder as an actuator, drives the valve by means of accessories such as a valve positioner, a converter, an electromagnetic valve, a position-preserving valve, an air storage tank, a gas filter and the like, realizes the on-off or proportional regulation, and receives a control signal of an industrial automatic control system to finish the regulation of pipeline media: flow, pressure, temperature, liquid level, etc. The pneumatic regulating valve has the characteristics of simple control, quick response, intrinsic safety and no need of taking explosion-proof measures.
The pneumatic regulating valve is characterized in that a pneumatic actuator is generally arranged at the top of the pneumatic regulating valve, and the pneumatic actuator acts fast, but when the pneumatic actuator acts, the pneumatic actuator generally closes or opens the valve due to the compressibility of gas and the detected hysteresis, and certain hysteresis is also provided, so that a medium still passes through the valve body in the closing or opening process, and the control precision of the valve is influenced.
Disclosure of Invention
Aiming at the problems in the prior art, the utility model aims to provide a high-precision pneumatic regulating valve so as to solve the technical problems in the background art.
In order to solve the problems, the utility model adopts the following technical scheme.
The utility model provides a pneumatic governing valve of high accuracy, includes valve body, case, valve rod and pneumatic actuator, the case is installed in the valve body, the bottom mounting of valve rod is on the case, pneumatic actuator is connected with the valve rod transmission, the bottom of valve body is provided with the through-hole, and the through-hole communicates with the inlet chamber of valve body, and bolted connection has the mount pad in the through-hole, and the up end of mount pad corresponds the slide hole has been seted up to the position of case, the sliding connection slide bar of slide hole, the top of slide bar is fixed on the case, coaxial stop collar that is fixed with on the lateral wall of slide bar, the mounting groove has been seted up on the lateral wall of slide hole, stop collar sliding connection is in the mounting groove, the top and the top symmetry in the mounting groove are provided with auxiliary assembly, and auxiliary assembly's work end and stop collar cooperation set up.
Preferably, the auxiliary assembly comprises an organ cover type miniature air bag, a spring, a gasket, an air pipe and a control mechanism, wherein the miniature air bag is detachably connected to the mounting groove, the spring is arranged in the miniature air bag, two ends of the spring are fixed on the inner wall of the miniature air bag in the extending direction, the gasket is fixed on the miniature air bag, one side of the gasket can be attached to the limiting ring, one end of the air pipe is communicated with the miniature air bag, and the other end of the air pipe penetrates through the mounting seat to be connected to the control mechanism.
Further, the control mechanism comprises a miniature air cavity, a piston and a miniature push rod motor, the piston is slidably connected in the miniature air cavity, the piston divides the miniature air cavity into a controller and a movable cavity, the movable cavity is communicated with the other end of the air pipe, a connecting rod is fixed on one side of the piston, one end of the connecting rod penetrates through the control cavity and is connected with the working end of the miniature push rod motor through a bolt, and the miniature push rod motor and the miniature air cavity are fixed on the mounting seat.
Further, a mounting plate is fixed on one side of the miniature air bag and is connected in the mounting groove through bolts.
Preferably, the side wall of the mounting seat is provided with an access hole, the access hole is communicated with the mounting groove, and the access hole is provided with a cover plate.
Preferably, a sealing ring is embedded and installed on the installation seat, and the top of the sealing ring is inserted into the through hole.
Compared with the prior art, the utility model has the advantages that:
according to the design of the auxiliary assembly, when the valve core is in a closed state, the auxiliary assembly at the bottom is in a to-be-operated state, a certain pressure is accumulated in the auxiliary assembly, and when the valve core is switched from the closed state to the open state, the auxiliary assembly acts to release the pressure so as to push the valve core to move upwards; when the valve core needs to be closed, the auxiliary assembly at the top is in a to-be-operated state, and when the valve core is switched from an open state to a closed state, the auxiliary assembly acts to release pressure to push the valve core to move downwards.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a high-precision pneumatic control valve of the present utility model;
FIG. 2 is a schematic diagram of the structure of the auxiliary assembly;
fig. 3 is a schematic structural view of the control mechanism.
The reference numerals in the figures illustrate:
1. a valve body; 2. a valve core; 3. a valve stem; 4. a pneumatic actuator; 5. a through hole; 6. a mounting base; 7. a slide hole; 8. a slide bar; 9. a limiting ring; 10. a mounting groove; 11. an auxiliary component; 1101. a miniature air bag; 1102. a spring; 1103. a gasket; 1104. an air pipe; 12. a control mechanism; 1201. a micro air cavity; 1202. a piston; 1203. a miniature push rod motor; 1204. a connecting rod; 1105. a mounting plate; 13. an access opening; 14. a cover plate; 15. and (3) sealing rings.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.
Examples:
referring to fig. 1 to 3, a high-precision pneumatic control valve comprises a valve body 1, a valve core 2, a valve rod 3 and a pneumatic actuator 4, wherein the valve core 2 is installed in the valve body 1, the bottom end of the valve rod 3 is fixed on the valve core 2, the pneumatic actuator 4 is in transmission connection with the valve rod 3, a through hole 5 is arranged at the bottom of the valve body 1, the through hole 5 is communicated with a water inlet cavity of the valve body 1, an installation seat 6 is connected in the through hole 5 through bolts, a slide hole 7 is arranged at the upper end face of the installation seat 6 corresponding to the position of the valve core 2, a slide rod 8 is connected in a sliding manner in the slide hole 7, the top end of the slide rod 8 is fixed on the valve core 2, a limit ring 9 is coaxially fixed on the side wall of the slide rod 8, an installation groove 10 is arranged on the side wall of the slide hole 7, the limit ring 9 is in the installation groove 10 in a sliding manner, auxiliary assemblies 11 are symmetrically arranged at the top and the top in the installation groove 10, and the working end of the auxiliary assemblies 11 are matched with the limit ring 9;
the auxiliary assembly 11 is designed, when the valve core 2 is in a closed state, the auxiliary assembly 11 at the bottom is in a to-be-operated state, certain pressure is accumulated in the auxiliary assembly 11, and when the valve core 2 is switched from the closed state to the open state, the auxiliary assembly 11 acts to release the pressure so as to push the valve core 2 to move upwards; when the valve core 2 needs to be closed, the auxiliary assembly 11 at the top is in a to-be-operated state, and when the valve core 2 is switched from an open state to a closed state, the auxiliary assembly 11 acts to release pressure to push the valve core 2 to move downwards, so that the time for closing and opening the valve core 2 can be shortened, and the precision of the regulating valve is improved through the design.
In this embodiment, the auxiliary assembly 11 includes an organ cover type micro air bag 1101, a spring 1102, a gasket 1103, an air pipe 1104, and a control mechanism 12, wherein the micro air bag 1101 is detachably connected to the mounting groove 10, the spring 1102 is disposed in the micro air bag 1101, two ends of the spring 1102 are fixed on an inner wall of the micro air bag 1101 in a stretching direction, the gasket 1103 is fixed on the micro air bag 1101, one side of the gasket 1103 can be attached to the limiting ring 9, one end of the air pipe 1104 is communicated with the micro air bag 1101, and the other end of the air pipe 1104 passes through the mounting seat 6 to be connected to the control mechanism 12;
through the design, when the valve core 2 is in a closed state, the auxiliary assembly 11 at the bottom is in a to-be-operated state, the micro air bag 1101 and the spring 1102 in the auxiliary assembly 11 at the bottom are in a compressed state, the gasket 1103 in the auxiliary assembly 11 at the bottom is attached to the lower end face of the limiting ring 9, when the valve core 2 is turned from the closed state to the open state, the control mechanism 12 in the auxiliary assembly 11 at the bottom acts, the micro air bag 1101 and the spring 1102 restore to original state to release pressure, and the valve core 2 is pushed to move upwards; conversely, when the valve core 2 is in the closed state from the open state, the corresponding auxiliary assembly 11 at the top only needs to act, and auxiliary power is provided for the valve core 2 by using the auxiliary assembly 11, so that the closing and opening time is shortened, and the control precision is improved.
In this embodiment, the control mechanism 12 includes a micro air chamber 1201, a piston 1202, and a micro push rod motor 1203, the piston 1202 is slidably connected in the micro air chamber 1201, the piston 1202 separates the micro air chamber 1201 into a controller and a movable chamber, the movable chamber is communicated with the other end of the air pipe 1104, a connecting rod 1204 is fixed on one side of the piston 1202, one end of the connecting rod 1204 passes through the control chamber and is connected with the working end of the micro push rod motor 1203, and the micro push rod motor 1203 and the micro air chamber 1201 are fixed on the mounting seat 6;
when power is needed, the micro push rod motor 1203 acts to control the position of the piston 1202, so as to control the pressure of the movable cavity in the micro air cavity 1201, and further adjust the pressure of the micro air bag 1101 communicated with the movable cavity to perform corresponding actions, shrink or expand.
In the present embodiment, a mounting plate 1105 is fixed to one side of the micro air bag 1101, and the mounting plate 1105 is bolted in the mounting groove 10; through the design, the miniature air bag 1101 can be conveniently disassembled and overhauled.
In the embodiment, an access hole 13 is formed in the side wall of the mounting seat 6, the access hole 13 is communicated with the mounting groove 10, and a cover plate 14 is arranged on the access hole 13; through the design, various components in the installation groove 10 can be conveniently overhauled.
In the embodiment, a sealing ring 15 is embedded and installed on the installation seat 6, and the top of the sealing ring 15 is inserted into the through hole 5; by the above design, the sealability in the mounting seat 6 and the through hole 5 is improved.
The working process of the utility model is as follows:
when the valve core 2 is in a closed state, the auxiliary assembly 11 at the bottom is in a to-be-operated state, the micro air bag 1101 and the spring 1102 in the auxiliary assembly 11 at the bottom are in a compressed state, the gasket 1103 in the auxiliary assembly 11 at the bottom is attached to the lower end face of the limiting ring 9, when the valve core 2 is turned from the closed state to the open state, the control mechanism 12 in the auxiliary assembly 11 at the bottom acts, when power is needed, the micro push rod motor 1203 acts to control the position of the piston 1202, thereby controlling the pressure of the movable cavity in the micro air cavity 1201, further adjusting the pressure of the micro air bag 1101 communicated with the movable cavity, correspondingly acting, contracting or expanding, restoring the original release pressure of the micro air bag 1101 and the spring 1102, and pushing the valve core 2 to move upwards; conversely, when the valve core 2 is in the closed state from the open state, the corresponding auxiliary assembly 11 at the top only needs to act, and auxiliary power is provided for the valve core 2 by using the auxiliary assembly 11, so that the closing and opening time is shortened, and the control precision is improved.
The above description is only of the preferred embodiments of the present utility model; the scope of the utility model is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present utility model, and the technical solution and the improvement thereof are all covered by the protection scope of the present utility model.
Claims (6)
1. The utility model provides a pneumatic governing valve of high accuracy, includes valve body (1), case (2), valve rod (3) and pneumatic actuator (4), case (2) are installed in valve body (1), the bottom mounting of valve rod (3) is on case (2), pneumatic actuator (4) are connected its characterized in that with valve rod (3) transmission: the bottom of valve body (1) is provided with through-hole (5), and through-hole (5) and valve body (1) advance water chamber intercommunication, and bolted connection has mount pad (6) in through-hole (5), and slide hole (7) have been seted up to the up end of mount pad (6) corresponding the position of case (2), and slide bar (8) are connected in the interior of slide hole (7), and the top of slide bar (8) is fixed on case (2), is fixed with spacing ring (9) on the lateral wall of slide bar (8) coaxial, has seted up mounting groove (10) on the lateral wall of slide bar (7), and spacing ring (9) sliding connection is provided with auxiliary assembly (11) in the top and the top symmetry in mounting groove (10), and the work end and spacing ring (9) cooperation of auxiliary assembly (11) are set up.
2. The high-precision pneumatic control valve according to claim 1, wherein: auxiliary assembly (11) are including miniature gasbag (1101) of organ cover formula, spring (1102), gasket (1103), trachea (1104), control mechanism (12), and connection is dismantled in mounting groove (10) miniature gasbag (1101), and spring (1102) set up in miniature gasbag (1101), and the both ends of spring (1102) are fixed on the inner wall of the flexible direction of miniature gasbag (1101), and gasket (1103) are fixed on miniature gasbag (1101), one side of gasket (1103) can with spacing ring (9) laminating, the one end and the miniature gasbag (1101) intercommunication of trachea (1104), the other end of trachea (1104) are passed mount pad (6) are connected to on control mechanism (12).
3. The high-precision pneumatic control valve according to claim 2, characterized in that: the control mechanism (12) comprises a micro air cavity (1201), a piston (1202) and a micro push rod motor (1203), the piston (1202) is slidably connected in the micro air cavity (1201), the piston (1202) divides the micro air cavity (1201) into a controller and a movable cavity, the movable cavity is communicated with the other end of the air pipe (1104), a connecting rod (1204) is fixed on one side of the piston (1202), one end of the connecting rod (1204) penetrates through the control cavity and is connected with the working end of the micro push rod motor (1203) through a bolt, and the micro push rod motor (1203) and the micro air cavity (1201) are fixed on the mounting seat (6).
4. The high-precision pneumatic control valve according to claim 2, characterized in that: a mounting plate (1105) is fixed on one side of the miniature air bag (1101), and the mounting plate (1105) is connected in the mounting groove (10) through bolts.
5. The high-precision pneumatic control valve according to claim 1, wherein: an access hole (13) is formed in the side wall of the mounting seat (6), the access hole (13) is communicated with the mounting groove (10), and a cover plate (14) is arranged on the access hole (13).
6. The high-precision pneumatic control valve according to claim 1, wherein: and a sealing ring (15) is embedded on the mounting seat (6), and the top of the sealing ring (15) is inserted into the through hole (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321902603.1U CN220622754U (en) | 2023-07-19 | 2023-07-19 | High-precision pneumatic regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321902603.1U CN220622754U (en) | 2023-07-19 | 2023-07-19 | High-precision pneumatic regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220622754U true CN220622754U (en) | 2024-03-19 |
Family
ID=90224465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321902603.1U Active CN220622754U (en) | 2023-07-19 | 2023-07-19 | High-precision pneumatic regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220622754U (en) |
-
2023
- 2023-07-19 CN CN202321902603.1U patent/CN220622754U/en active Active
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