CN111120709A - Novel IC card flow cut-off valve - Google Patents
Novel IC card flow cut-off valve Download PDFInfo
- Publication number
- CN111120709A CN111120709A CN201910394175.8A CN201910394175A CN111120709A CN 111120709 A CN111120709 A CN 111120709A CN 201910394175 A CN201910394175 A CN 201910394175A CN 111120709 A CN111120709 A CN 111120709A
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- Prior art keywords
- valve
- valve clack
- motor
- main shaft
- novel
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/224—Details of bearings for the axis of rotation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
- F16K1/2263—Shaping or arrangements of the sealing the sealing being arranged on the valve seat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The invention discloses a novel IC card flow cut-off valve which comprises a valve body, a valve clack assembly, a sealing seat and a first sealing element, wherein the first sealing element is arranged on the sealing seat, the sealing seat is fixed on the valve body, a motor is arranged outside the valve body, the motor is in transmission connection with the valve clack assembly, the valve clack assembly is connected with a self-adaptive sealing driving mechanism, and the self-adaptive sealing driving mechanism is also in transmission connection with the motor. The self-adaptive sealing driving mechanism can enable the valve clack assembly to automatically adjust the position when being blocked by the first sealing element, so that the resistance of the first sealing element in the matching process of the valve clack assembly and the sealing seat is reduced, the valve clack assembly can conveniently realize the working state conversion smoothly, and the working reliability of the cut-off valve is improved.
Description
Technical Field
The invention relates to an oil gas instrument accessory device, in particular to a novel IC card flow cut-off valve.
Background
With the increasing importance of the nation on the environmental protection problem, natural gas is widely used as clean energy, the number of gas users is rapidly increased, and the safety problem of gas use is gradually highlighted. At present, only a gas meter is installed when gas enters a household, other special safety monitoring devices are not needed, the existing gas meter only has a metering function, and safety accidents in use cannot be avoided. Therefore, related design and production units develop the IC card gas meter with the shut-off valve, and the gas source can be shut off in time when abnormal flow occurs, so that the use safety of the gas is greatly improved. As utility model discloses utility model with publication number CN202373074U discloses a IC card gas table with unusual flow cutting function specially does benefit to 2012 8 month 8, include: base table, base table air inlet, base table gas outlet be equipped with the counter on the base table be equipped with the trip valve in the base table air inlet be equipped with IC-card control circuit on the base table, the counter with IC-card control circuit's input is connected, IC-card control circuit's output with the trip valve is connected. The utility model discloses a can stop gas, superpressure, overflow, take off pipe, rubber tube fracture or ageing and all kinds of flow abnormal phenomena that lead to realize self-closing in the twinkling of an eye to the proruption, improve the security performance in the gas table use. This IC-card gas table passes through the trip valve and cuts off the air supply, however in the current IC-card flow trip valve, the valve clack subassembly only can rotate, rotate the in-process of closure state at the valve clack subassembly, can receive blockking of bellied first sealing member, and receive instrument self space limitation, used motor is micro motor usually in the gas table, with the battery power supply, power and rated load are all less, if first sealing member uses for a long time, its elasticity descends, the resistance of ageing first sealing member is often difficult to overcome to the drive power of motor this moment, make the trip valve can not accomplish fluidic cutting off, the operational reliability of trip valve is influenced greatly.
Disclosure of Invention
In the existing IC card flow cut-off valve, the power of a motor is small, and in the process of driving a valve clack assembly to rotate to a closed state, the valve clack assembly is easily blocked by an aged first sealing element, so that the working state conversion cannot be smoothly completed.
The technical scheme of the invention is as follows: the utility model provides a novel IC-card flow trip valve, includes valve body, valve clack subassembly, seal receptacle and first sealing member, and first sealing member is installed on the seal receptacle, and the seal receptacle is fixed on the valve body, is equipped with the motor outside the valve body, and the motor is connected with the transmission of valve clack subassembly through a main shaft, and valve clack subassembly is connected with a self-adaptation seal actuating mechanism, and self-adaptation seal actuating mechanism also is connected with motor drive. When the motor drives the valve clack assembly to rotate to a closed state, the valve clack assembly needs to cross a first contact point of the first sealing element and then is aligned and overlapped with the sealing seat and tightly presses the first sealing element so as to seal the fluid channel and cut off fluid output. To ensure the sealing effect, the first sealing element is usually slightly higher than the first sealing element of the sealing seat, so that the valve flap assembly is difficult to avoid interfering with the first sealing element when passing over the first sealing element, and the switching of the valve flap assembly into the position is hindered. The power of the motor configured on the IC card flow cut-off valve is usually small, and if the first sealing member is aged and the elasticity is weakened, the driving force of the motor to the valve flap assembly can hardly overcome the resistance of the first sealing member. Set up the sealed actuating mechanism of self-adaptation, can make the valve clack subassembly adjust the position by oneself when receiving first sealing member and hindering to reduce the mutual extrusion between valve clack subassembly and the first sealing member, reduce the resistance of the first sealing member that the valve clack subassembly received, the valve clack subassembly of being convenient for crosses the first contact point arrival of first sealing member smoothly and the cooperation position of seal receptacle, realization operating condition conversion.
Preferably, the self-adaptive sealing driving mechanism comprises a sliding torque transmission structure, the valve clack assembly is provided with a connecting seat, the connecting seat is connected with the main shaft through the sliding torque transmission structure, and the main shaft is in transmission connection with the motor. The sliding torque transmission structure can transmit the torque of the main shaft to the connecting seat to enable the valve clack assembly to rotate, and can allow the connecting seat and the main shaft to slide at the same time, so that the position of the valve clack assembly can be automatically adjusted when the valve clack assembly is blocked by the first sealing element to reduce the resistance of the first sealing element when the valve clack assembly rotates.
Preferably, the sliding torque transmission structure comprises a torque transmission head arranged on the main shaft and a clamping sliding groove arranged on the connecting seat, wherein a parallel clamping surface is arranged on the torque transmission head, and the clamping surface is in sliding fit with the groove wall of the clamping sliding groove. This kind of structure makes, the torque transmission head can slide in the joint spout, simultaneously realize the slip joint through the laminating of joint face and joint spout cell wall again, the connecting seat keeps in the first synchronous with the torque transmission in the circumference of torque transmission promptly, realize the moment of torsion transmission of main shaft to the connecting seat, make the valve clack subassembly can be driven by the main shaft, there is the space of relative slip between torque transmission head and connecting seat simultaneously, the valve clack subassembly is when receiving first sealing member and hindering like this, valve clack subassembly accessible removes and is close to the main shaft in order to realize the adjusting position by oneself, thereby it clears up the resistance of the first sealing member that the valve clack subassembly received when rotating.
Preferably, the self-adaptive sealing driving mechanism further comprises a pressing plate and a guide pin, the pressing plate is fixedly connected to the main shaft, an inclined waist circular hole is formed in the free end of the pressing plate, one end of the guide pin is inserted into the waist circular hole, and the other end of the guide pin is fixed on the connecting seat. The connecting seat is connected with the pressing plate through the guide pin, so that the connection between the top of the valve clack assembly and the spindle is further established, the valve clack assembly is restrained by more acting forces, the valve clack assembly is more beneficial to keeping a balanced stress structure, and the posture is kept in the working process. The waist round hole also makes the space that has relative movement between valve clack subassembly and the pressure strip, and the valve clack subassembly can the synchronous fit between valve clack subassembly and the pressure strip, between valve clack subassembly and the main shaft like this when receiving first sealing member and hindering, adjusts valve clack subassembly position by oneself, clears up the resistance of the first sealing member that the valve clack subassembly received when rotating.
Preferably, the torque transmission head is in a square column shape. The square column-shaped torque transmission head is provided with parallel clamping surfaces, has a simple structure, and can be easily clamped with the sliding clamping chute in a sliding way.
Alternatively, the torque transmission head is hexagonal prism shaped. The hexagonal prism shape can also realize the sliding clamping with the clamping sliding groove.
Preferably, the output end of the motor is connected with the main shaft through a transmission gear set. The transmission gear set is arranged between the motor and the main shaft, so that transmission can be accurately and efficiently realized, the motor position can be conveniently and flexibly set, and the space utilization rate is improved.
Preferably, the valve clack assembly comprises a valve clack body and a valve clack support, the valve clack body is fixedly connected with the valve clack support, the valve clack body is in a disc shape, a valve clack inclined plane is arranged on the outer end face of the valve clack body, a sealing seat inclined plane corresponding to the valve clack inclined plane is arranged on the sealing seat, a first sealing element is installed on the sealing seat inclined plane, the bottom of the valve clack support is connected to the bottom of the valve body, and. The inclined plane cooperation between valve clack body and the seal receptacle helps valve clack body and seal receptacle to carry out the centering adjustment by oneself, improves cooperation precision and trip valve work efficiency.
The invention has the beneficial effects that:
the working resistance is reduced, and the working reliability is improved. The self-adaptive sealing driving mechanism can enable the valve clack assembly to automatically adjust the position when being blocked by the first sealing element, so that the resistance of the first sealing element in the matching process of the valve clack assembly and the sealing seat is reduced, the valve clack assembly can conveniently realize the working state conversion smoothly, and the working reliability of the cut-off valve is improved.
The load of the motor is reduced, and the normal service life of the motor is ensured. The invention can reduce the resistance of the first sealing element in the process of matching the valve clack assembly with the sealing seat, thereby reducing the load of the motor and avoiding the reduction of the service life of the motor.
Drawings
FIG. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural diagram of the adaptive sealing driving mechanism according to the present invention;
FIG. 3 is a schematic view of the valve flap assembly and the sealing seat in the close critical state of the present invention;
FIG. 4 is a schematic view of the connection seat, the pressing plate and the guide pin in the state shown in FIG. 3;
FIG. 5 is a schematic view of the valve flap assembly and the sealing seat in a fully closed state;
FIG. 6 is a schematic view showing the engagement between the connecting seat and the pressing plate and the guide pin in the state shown in FIG. 5;
fig. 7 is a schematic view of a valve flap assembly according to the present invention.
In the figure, 1-valve body, 2-valve clack assembly, 21-valve clack body, 22-valve clack support, 3-valve clack assembly support seat, 4-meter head outer cover, 5-motor, 6-controller, 7-transmission gear set, 8-main shaft, 9-sealing seat, 10-first sealing element, 11-second sealing element, 12-torsion transmission head, 13-pressing plate, 14-guide pin, 15-clamping sliding groove, 16-pin hole, 17-connecting seat, 18-waist circular hole, 181-near main shaft point and 182-far main shaft point.
Detailed Description
The invention is further illustrated by the following specific embodiments in conjunction with the accompanying drawings.
Example 1:
as shown in fig. 1 to 7, a novel IC card flow cut-off valve is used for a gas meter, and comprises a valve body 1, a valve clack assembly 2, a seal seat 9 and a first seal member 10, wherein a valve clack assembly support seat 3 is arranged at the bottom of the valve body 1. A gauge outfit outer cover 4 is arranged on the top of the valve body 1, and a controller 6 is arranged in the gauge outfit outer cover 4. The valve clack assembly 2 comprises a valve clack body 21 and a valve clack support 22, the valve clack body 21 is fixedly connected with the valve clack support 22, and the bottom of the valve clack support 22 is hinged to the valve clack assembly support base 3 through a ball head. The valve clack body 21 is the dish type of taking the tapering, is equipped with the valve clack inclined plane on the outer terminal surface of valve clack body 21, and seal receptacle 9 tight fit is on the delivery outlet of 1 inner chamber of valve body, and seal receptacle 9 is for taking tapered horn mouth structure on the terminal surface of 1 inner chamber of valve body, and the seal receptacle inclined plane that constitutes the horn mouth structure corresponds and tapering matching with the valve clack inclined plane, and first sealing member 10 is installed on the seal receptacle inclined plane, installs second sealing member 11 between seal receptacle 9 and valve body 1. The meter head outer cover 4 outside the valve body 1 is also internally provided with a motor 5, the motor 5 is electrically connected with a controller 6, the motor 5 is in transmission connection with the valve clack component 2 through a main shaft 8, the valve clack component 2 is connected with a self-adaptive sealing driving mechanism, and the self-adaptive sealing driving mechanism is also in transmission connection with the motor 5. The self-adaptive sealing driving mechanism comprises a sliding torque transmission structure, a valve clack support of the valve clack component 2 is provided with a connecting seat 17, the connecting seat 17 is connected with a main shaft 8 through the sliding torque transmission structure, and the main shaft 8 is in transmission connection with the motor 5. The sliding torque transmission structure comprises a torque transmission head 12 arranged on the main shaft 8 and a clamping sliding groove 15 arranged on the connecting seat 17, the torque transmission head 12 is in a square column shape, and a clamping surface parallel to the torque transmission head 12 is in sliding fit with the groove wall of the clamping sliding groove 15. The torque transmission head 12 is welded at the free end of the main shaft 8. The self-adaptive sealing driving mechanism further comprises a pressing plate 13 and a guide pin 14 with a circular cross section, the pressing plate 13 is fixedly connected to the spindle 8, an inclined oval hole 18 is formed in the free end of the pressing plate 13, the long axis of the oval hole 18 and the axis of the pressing plate 13 form an included angle of 8-20 degrees, two end points of the oval hole 18 are a near spindle point 181 and a far spindle point 182 respectively, one end of the guide pin 14 is inserted into the oval hole 18, and the other end of the guide pin is tightly inserted into a pin hole 16 in the end portion of the connecting seat 17 and is in rotating connection with the connecting seat 17. The output end of the motor 5 is connected with the main shaft 8 through a transmission gear set 7.
When the gas meter detects that the flow is abnormal through a detection device, the controller 6 sends a signal to control the motor 5 to rotate, the main shaft 8 is driven to rotate, the main shaft 8 further drives the torsion transmission head 12, the pressing plate 13 and the valve flap assembly 2 to rotate, when the valve flap assembly 2 crosses a first contact point of the first sealing element 10 and collides with the first sealing element 10 to form a 'locked-rotor' state, the upper part of the valve flap assembly 2 and the guide pin 14 are close to the main shaft 8 under the reverse thrust action of the first sealing element 10, namely the guide pin 14 slides to a position close to a main shaft point 181 of the pressing plate 13 to perform self-adjustment and eliminate the resistance of the first sealing element 10, the bottom of the valve flap assembly 2 rotates around the ball head, the upper part of the valve flap assembly 2 inclines towards the main shaft 8, and the valve flap assembly 2 integrally forms an inclined posture so as to. Along with the continuous rotation of the motor 5, after the 'locked-rotor' state is passed, the valve clack assembly 2 is driven by the motor 5 to complete the rotation of 90 degrees, at the moment, under the action of the gas airflow pressure in the inner cavity of the valve body 1, the valve clack assembly 2 swings back to the seal seat 9 to form a normal posture, the position of the guide pin 14 slides to a far main shaft point 182 from an original near main shaft point 181, the valve clack assembly 2 is close to the seal seat 9 to form an accurate position to overlap and press the first seal member 10, and the purposes of closing the gas outlet of the inner cavity of the valve body 1 and cutting off the gas output are achieved. When a cut-off valve opening command is sent, the driving pin 14 slides from the far spindle point 182 to the near spindle point 181 under the driving of the motor 5, so that the valve clack assembly 2 is separated from the first sealing element 10, and then the valve clack assembly 2 is completely removed to restore the air flow transmission.
Example 2:
the torque transmission head 12 is hexagonal prism shaped. The torque transmission head 12 is integrally formed with the main shaft 8. The rest is the same as example 1.
Claims (8)
1. The utility model provides a novel IC-card flow trip valve, including valve body (1), valve clack subassembly (2), seal receptacle (9) and first sealing member (10), install on seal receptacle (9) first sealing member (10), seal receptacle (9) are fixed on valve body (1), valve body (1) are equipped with motor (5) outward, motor (5) are connected with valve clack subassembly (2) transmission through a main shaft (8), characterized by valve clack subassembly (2) are connected with a self-adaptation seal actuating mechanism, self-adaptation seal actuating mechanism also is connected with motor (5) transmission.
2. The novel IC card flow cut-off valve as claimed in claim 1, wherein the adaptive sealing driving mechanism comprises a sliding torque transmission structure, the valve clack assembly (2) is provided with a connecting seat (17), the connecting seat (17) is connected with the main shaft (8) through the sliding torque transmission structure, and the main shaft (8) is in transmission connection with the motor (5).
3. The novel IC card flow cut-off valve as claimed in claim 2, wherein the sliding torque transmission structure comprises a torque transmission head (12) arranged on the main shaft (8) and a clamping sliding groove (15) arranged on the connecting seat (17), the torque transmission head (12) is provided with parallel clamping surfaces, and the clamping surfaces are in sliding fit with the groove wall of the clamping sliding groove (15).
4. The novel IC card flow cut-off valve as claimed in claim 2, wherein the adaptive sealing driving mechanism further comprises a pressing plate (13) and a guide pin (14), the pressing plate (13) is fixedly connected to the main shaft (8), the free end of the pressing plate (13) is provided with an inclined waist circular hole (18), one end of the guide pin (14) is inserted into the waist circular hole (18), and the other end of the guide pin is fixed on the connecting seat (17).
5. A novel IC card flow cut-off valve as claimed in claim 3, wherein the torque transmission head (12) is in the shape of a square column.
6. A new type of IC card flow cut-off valve as claimed in claim 3, characterized by the torque transmission head (12) being hexagonal prism shaped.
7. The novel IC card flow cut-off valve as claimed in claim 2, characterized in that the output end of the motor (5) is connected with the main shaft (8) through a transmission gear set (7).
8. The novel IC card flow cut-off valve as claimed in any one of claims 1 to 7, wherein the valve flap assembly (2) comprises a valve flap body and a valve flap support, the valve flap body is fixedly connected with the valve flap support, the valve flap body is in a disc shape, a valve flap inclined plane is arranged on the outer end face of the valve flap body, a seal seat inclined plane corresponding to the valve flap inclined plane is arranged on the seal seat (9), the first seal member (10) is arranged on the seal seat inclined plane, the bottom of the valve flap support is connected to the bottom of the valve body (1), and the connecting seat (17) is arranged on the valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910394175.8A CN111120709B (en) | 2019-05-13 | 2019-05-13 | Novel IC card flow cut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910394175.8A CN111120709B (en) | 2019-05-13 | 2019-05-13 | Novel IC card flow cut-off valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111120709A true CN111120709A (en) | 2020-05-08 |
| CN111120709B CN111120709B (en) | 2021-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910394175.8A Active CN111120709B (en) | 2019-05-13 | 2019-05-13 | Novel IC card flow cut-off valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN111120709B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB264658A (en) * | 1926-01-26 | 1927-01-27 | Zdenek Vencl | Improvements in or relating to flap valves |
| US20030136930A1 (en) * | 2002-01-23 | 2003-07-24 | Dowden David E. | Non-coaxial rotary linkage |
| CN202992245U (en) * | 2012-12-07 | 2013-06-12 | 上海鸿润科技有限公司 | Valve core component and low torque valve |
| CN108180308A (en) * | 2018-01-29 | 2018-06-19 | 天津新科成套仪表有限公司 | A kind of middle compression ignition air pipe straight-through valve |
| CN108953660A (en) * | 2018-08-30 | 2018-12-07 | 昆山维萨阀门有限公司 | A kind of Bidirectional hard seal floating ball valve |
| CN208311525U (en) * | 2018-05-28 | 2019-01-01 | 浙江苍南仪表集团股份有限公司 | A kind of stop valve |
| CN109458468A (en) * | 2018-12-25 | 2019-03-12 | 成都中科智成科技有限责任公司 | A kind of novel orbit ball valve without the driving of frictional micro machine |
-
2019
- 2019-05-13 CN CN201910394175.8A patent/CN111120709B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB264658A (en) * | 1926-01-26 | 1927-01-27 | Zdenek Vencl | Improvements in or relating to flap valves |
| US20030136930A1 (en) * | 2002-01-23 | 2003-07-24 | Dowden David E. | Non-coaxial rotary linkage |
| CN202992245U (en) * | 2012-12-07 | 2013-06-12 | 上海鸿润科技有限公司 | Valve core component and low torque valve |
| CN108180308A (en) * | 2018-01-29 | 2018-06-19 | 天津新科成套仪表有限公司 | A kind of middle compression ignition air pipe straight-through valve |
| CN208311525U (en) * | 2018-05-28 | 2019-01-01 | 浙江苍南仪表集团股份有限公司 | A kind of stop valve |
| CN108953660A (en) * | 2018-08-30 | 2018-12-07 | 昆山维萨阀门有限公司 | A kind of Bidirectional hard seal floating ball valve |
| CN109458468A (en) * | 2018-12-25 | 2019-03-12 | 成都中科智成科技有限责任公司 | A kind of novel orbit ball valve without the driving of frictional micro machine |
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| Publication number | Publication date |
|---|---|
| CN111120709B (en) | 2021-11-30 |
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