CN112728199A - Self-operated bidirectional pneumatic quick cut-off valve - Google Patents
Self-operated bidirectional pneumatic quick cut-off valve Download PDFInfo
- Publication number
- CN112728199A CN112728199A CN202011639247.XA CN202011639247A CN112728199A CN 112728199 A CN112728199 A CN 112728199A CN 202011639247 A CN202011639247 A CN 202011639247A CN 112728199 A CN112728199 A CN 112728199A
- Authority
- CN
- China
- Prior art keywords
- valve
- ring
- sealing
- spring
- self
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 61
- 239000011324 bead Substances 0.000 claims description 10
- 239000002985 plastic film Substances 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 abstract description 2
- 230000002269 spontaneous effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000003345 natural gas Substances 0.000 description 3
- 238000010030 laminating Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
-
- 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
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
- F16K31/1221—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston one side of the piston being spring-loaded
-
- 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
- F16K1/14—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 ball-shaped valve member
-
- 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
- F16K31/54—Mechanical actuating means with toothed gearing with pinion and rack
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0605—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L29/00—Joints with fluid cut-off means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention discloses a self-operated bidirectional pneumatic quick cut-off valve which comprises a cut-off valve body, wherein a spherical channel valve ring is arranged in the middle of the cut-off valve body and is hollow, a first valve port is arranged on the left side of the spherical channel valve ring, a second valve port is arranged on the right side of the spherical channel valve ring, sealing devices are symmetrically arranged on the first valve port and the second valve port close to one side of the spherical channel valve ring, each sealing device comprises a sealing ring, a limiting groove, a sealing spring and a rubber ring, an opening is formed in the middle of the sealing ring, the opening of the sealing ring is small in left and large in right and is attached to the outer wall of the spherical channel valve ring, a plurality of limiting grooves are annularly arranged on the left end face of the sealing ring. When the invention is used, the sealing ring is attached to the spherical channel valve ring, so that the sealing use is carried out by utilizing the counterforce of the sealing spring, and the invention provides good electrostatic conductivity and prevents the accidental spontaneous combustion condition.
Description
Technical Field
The invention relates to a cut-off valve, in particular to a self-operated bidirectional pneumatic quick cut-off valve.
Background
In a natural gas process system, safe operation and fire control of the natural gas safety cut-off are very important emergency response measures. The safety and reliability of the cut-off valve are of great significance to safety production. The common shut-off valve comprises a pneumatic shut-off valve, an electric shut-off valve and a hydraulic shut-off valve, and the pneumatic shut-off valve is mainly driven by compressed air, the electric shut-off valve is driven by motor torque, and the hydraulic shut-off valve is driven by hydraulic pressure. The pneumatic and hydraulic trip valves are operated faster than the electric trip valves in terms of response time. Therefore, the application of the pneumatic cut-off valve and the hydraulic cut-off valve in the natural gas industry is more popular. However, the pneumatic or hydraulic shut-off valves typically used are relatively complex in construction. For example, the pneumatic trip valve needs peripheral hardware compressed air as power, and hydraulic trip valve needs peripheral hardware liquid, and this is that resource consumption has improved a lot to the place that the condition is harsher undoubtedly, and current trip valve is the one-way use mostly simultaneously, and when faced the emergency who comes from the opposite side, the function of cutting off that provides will lose effect. Accordingly, a self-operated bidirectional pneumatic quick shut-off valve is provided by those skilled in the art to solve the above problems in the background art.
Disclosure of Invention
The invention aims to provide a self-operated bidirectional pneumatic quick cut-off valve to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a self-operated bidirectional pneumatic quick cut-off valve comprises a cut-off valve body, wherein a spherical channel valve ring is arranged in the middle of the cut-off valve body and is hollow, a first valve port is formed in the left side of the spherical channel valve ring, a second valve port is formed in the right side of the spherical channel valve ring, linkage rods are fixedly arranged at the upper end and the lower end of the spherical channel valve ring, a driving device is fixedly arranged at one end of the outer side of a fixing seat and comprises a gear, a rack, a limiting block, a fixing rod, a driving spring and a driving groove, the driving groove is formed in the driving device, the driving spring is fixedly arranged at the bottom of the groove in the driving groove, a left symmetrical limiting block and a right limiting block are arranged at the other end of the driving spring, the limiting blocks are connected with the driving groove in a sliding manner, the, the gear is meshed with the rack insections, the upper end of the first valve port and the lower end of the second valve port are respectively and correspondingly provided with a pressure-leading pipe, the other end of the pressure-leading pipe is fixedly connected with a driving device, and a pressure-reducing device and a switching device communicated with the driving device are sequentially arranged on the pressure-leading pipe.
As a further scheme of the invention: and the first valve port and the second valve port are symmetrically provided with sealing devices by one side of the spherical channel valve ring, and the sealing devices comprise sealing rings, limiting grooves, sealing springs and rubber rings.
As a still further scheme of the invention: the trompil is seted up at the sealing ring middle part, and the sealing ring trompil is big and laminating and spherical passageway valve collar outer wall about little, and a plurality of spacing groove is established to the sealing ring left end face ring, is equipped with sealing spring in the spacing groove, and the upper end of sealing ring week side is equipped with a plurality of rubber ring.
As a still further scheme of the invention: fixing bases are symmetrically arranged at the upper end and the lower end of the cut-off valve body, and the linkage rod is movably connected with the fixing bases.
As a still further scheme of the invention: the linkage rod penetrates through the end face of the fixing seat, and the lower end of the gear is fixedly connected with the linkage rod.
As a still further scheme of the invention: the pressure reduction device comprises a pressure reduction cavity, a buffer plate, a pressure reduction spring, a spring seat, a sealing plastic sheet, a connecting rod and a limiting plate.
As a still further scheme of the invention: the pressure reduction intracavity is by drive arrangement one side fixed mounting buffer board, and the pressure reduction intracavity is equipped with the connecting rod, and the connecting rod leans on interior one side fixed mounting spring holder, the sealed plasticity piece of spring holder middle part fixed mounting, spring holder other end fixed mounting pressure reduction spring, the fixed limiting plate of ann of connecting rod other end, and the limiting plate is the round platform form, and limiting plate lateral wall laminating buffer board terminal surface down.
As a still further scheme of the invention: the switch device comprises a limiting ring, an internal groove, a switch spring, a sealing ball, a fixing plate and a press switch.
As a still further scheme of the invention: the groove bottom of one side of the built-in groove close to the driving device is fixedly provided with a limiting ring, the other side of the limiting ring is fixedly provided with a switch spring, and the other end of the switch spring is fixedly provided with a sealing bead.
As a still further scheme of the invention: and a fixing plate is arranged on the other side of the sealing bead, a press switch is fixedly mounted on the fixing plate, and the press switch penetrates out of the pressure guiding pipe.
Compared with the prior art, the invention has the beneficial effects that:
1. when the pneumatic cut-off valve is used, gas in the main pipeline enters the first valve port or the second valve port, is led out through the pressure leading pipe, passes through the pressure reducing device, and is under the strong pressure of the pressure reducing spring, so that the pressure reducing spring presses the sealing plastic sheet, then the gap between the limiting plate and the buffer plate is improved by utilizing the connecting rod, the air pressure is reduced, and the gas is used as an air source after the pressure is reduced, so that the pneumatic cut-off valve can be used subsequently.
2. When the pneumatic pressure-reducing valve is used, the switch device is turned on, the downward-pressing switch presses the sealing beads, the switch spring contracts, the sealing beads are separated from the built-in groove, the pressure-leading pipe is conducted, the pneumatic cut-off valve is normally opened, the limiting block moves towards one side of the driving spring by utilizing the high pressure of air pressure, the driving spring contracts, and then the rack is meshed with the gear in a tooth pattern mode, so that the valve ring of the spherical channel fixedly installed on the lower side of the lower linkage rod is opened.
3. When the invention is used, the sealing ring is attached to the spherical channel valve ring, so that the sealing use is carried out by utilizing the counterforce of the sealing spring, and the invention provides good electrostatic conductivity and prevents the accidental spontaneous combustion condition.
Drawings
Fig. 1 is a schematic structural diagram of a self-operated bidirectional pneumatic quick cut-off valve.
Fig. 2 is a schematic structural diagram of a spherical channel valve ring in a self-operated bidirectional pneumatic quick cut-off valve.
Fig. 3 is an enlarged view of fig. 1A of the self-operated bidirectional pneumatic quick shut-off valve.
Fig. 4 is an enlarged view of fig. 1B of the self-operated bidirectional pneumatic quick shut-off valve.
Fig. 5 is a schematic structural diagram of a sealing device in a self-operated bidirectional pneumatic quick cut-off valve.
Fig. 6 is a schematic structural diagram of a driving device in a self-operated bidirectional pneumatic quick cut-off valve.
In the figure: 1. a valve body is cut off; 2. a first valve port; 3. a second valve port; 4. a sealing device; 41. a seal ring; 42. a limiting groove; 43. a seal spring; 44. a rubber ring; 5. a spherical channel valve collar; 6. a linkage rod; 7. a fixed seat; 8. a drive device; 81. a gear; 82. a rack; 83. a limiting block; 84. fixing the rod; 85. a drive spring; 86. a drive slot; 9. a pressure guiding pipe; 10. a switching device; 101. a limiting ring; 102. a built-in groove; 103. a switch spring; 104. sealing the beads; 105. a fixing plate; 106. pressing the switch; 11. a pressure reducing device; 111. a pressure reducing chamber; 112. a buffer plate; 113. a pressure reducing spring; 114. a spring seat; 115. sealing the plastic sheet; 116. a connecting rod; 117. and a limiting plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 6, in the embodiment of the present invention, a self-operated bidirectional pneumatic fast cut-off valve includes a cut-off valve body 1, a spherical channel valve ring 5 is disposed in the middle of the cut-off valve body 1, the spherical channel valve ring 5 is hollow, a first valve port 2 is disposed on the left side of the spherical channel valve ring 5, a second valve port 3 is disposed on the right side of the spherical channel valve ring 5, a sealing device 4 is symmetrically mounted on one side of the first valve port 2 and the second valve port 3 close to the spherical channel valve ring 5, the sealing device 4 includes a sealing ring 41, a limiting groove 42, a sealing spring 43 and a rubber ring 44, an opening is disposed in the middle of the sealing ring 41, the opening of the sealing ring 41 is small in left and large in right and is attached to the outer wall of the spherical channel valve ring 5, a plurality of limiting grooves 42 are annularly disposed on the left end surface of the sealing ring 41, a plurality of rubber rings, the upper end and the lower end of a spherical channel valve ring 5 are fixedly provided with a linkage rod 6, the linkage rod 6 passes through the end surface of a fixed seat 7, the linkage rod 6 is movably connected with the fixed seat 7, one end of the outer side of the fixed seat 7 is fixedly provided with a driving device 8, the driving device 8 comprises a gear 81, a rack 82, a limiting block 83, a fixed rod 84, a driving spring 85 and a driving groove 86, the driving groove 86 is arranged in the driving device 8, the driving spring 85 is fixedly arranged at the bottom of the groove in the driving groove 86, the other end of the driving spring 85 is provided with a bilaterally symmetrical limiting block 83, the limiting block 83 is connected with the driving groove 86 in a sliding way, the middle part of the limiting block 83 is fixedly provided with the rack 82 at the rear side, the fixed rod 84 is arranged at the upper end and the lower end of the rack 82 in a symmetrical way, the limiting blocks 83 are fixedly connected at the left end and the right end of the, the other end of the pressure guiding pipe 9 is fixedly connected with a driving device 8, the pressure guiding pipe 9 is sequentially provided with a pressure reducing device 11 and a switch device 10 which are communicated with the driving device 8, the pressure reducing device 11 comprises a pressure reducing cavity 111, a buffer plate 112, a pressure reducing spring 113, a spring seat 114, a sealing plastic sheet 115, a connecting rod 116 and a limiting plate 117, the buffer plate 112 is fixedly arranged in the pressure reducing cavity 111 close to one side of the driving device 8, the connecting rod 116 is arranged in the pressure reducing cavity 111, the spring seat 114 is fixedly arranged on one inner side of the connecting rod 116, the sealing plastic sheet 115 is fixedly arranged in the middle of the spring seat 114, the pressure reducing spring 113 is fixedly arranged on the other end of the spring seat 114, the limiting plate 117 is fixedly arranged on the other end of the connecting rod 116, the limiting plate 117 is in a circular truncated cone shape, the side wall of the limiting plate 117 is attached to the lower end face of the buffer plate 112, the switch device 10 comprises a, a switch spring 103 is fixedly arranged on the other side of the limiting ring 101, a sealing bead 104 is fixedly arranged on the other side of the switch spring 103, a fixing plate 105 is arranged on the other side of the sealing bead 104, a press switch 106 is fixedly arranged on the fixing plate 105, and the press switch 106 penetrates out of the pressure guiding pipe 9.
The working principle of the invention is as follows:
when the pneumatic cut-off valve is used, gas in a main pipeline enters the first valve port 2 or the second valve port 3, then is led out through the pressure leading pipe 9, passes through the pressure reducing device 11, is under strong pressure of the pressure reducing spring 113, so that the pressure reducing spring 113 presses the sealing plastic sheet 115, then the gap between the limiting plate 117 and the buffer plate 112 is increased through the connecting rod 116, so that the air pressure is reduced, the gas is used as a gas source after pressure reduction, and the gas is led to the driving device 8 of the pneumatic cut-off valve through the switch device 10. During normal work, the switch device 10 is opened, the press switch 106 is enabled to press the sealing ball 104, the switch spring 103 is contracted, the sealing ball 104 is separated from the built-in groove 102, the pressure guiding pipe 9 is conducted, the pneumatic cutoff valve is normally opened, the limiting block 83 is moved to one side of the driving spring 85 by utilizing the high pressure of air pressure, the driving spring 85 is enabled to contract, then the rack 82 is meshed with the gear 81 in a tooth pattern mode, the spherical channel valve ring 5 fixedly installed on the lower side of the lower linkage rod 6 is enabled to be opened, when emergency closing is needed, the switch device 10 is closed, the pressure guiding pipe 9 is closed, the limiting block 83 is not pressed by the air pressure, the driving spring 85 is extended, the rack 82 is meshed with the gear 81 in a reverse mode, the spherical channel valve ring 5 is enabled to be closed, and then the pneumatic cutoff.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A self-operated bidirectional pneumatic quick cut-off valve comprises a cut-off valve body (1) and is characterized in that a spherical channel valve ring (5) is arranged in the middle of the cut-off valve body (1), the spherical channel valve ring (5) is hollow, a first valve port (2) is arranged on the left side of the spherical channel valve ring (5), a second valve port (3) is arranged on the right side of the spherical channel valve ring (5), linkage rods (6) are fixedly arranged at the upper end and the lower end of the spherical channel valve ring (5), a driving device (8) is fixedly arranged at one end of the outer side of a fixing seat (7), the driving device (8) comprises a gear (81), a rack (82), a limiting block (83), a fixing rod (84), a driving spring (85) and a driving groove (86), a driving groove (86) is formed in the driving device (8), the driving spring (85) is fixedly arranged at the bottom of the inner groove of, and stopper (83) and drive groove (86) sliding connection, middle part rear side fixed mounting rack (82) between stopper (83), both ends symmetry installation dead lever (84) about rack (82), and both ends fixed connection stopper (83) about dead lever (84), rack (82) front end is equipped with gear (81), gear (81) and rack (82) insection meshing, valve port one (2) upper end corresponds respectively with valve port two (3) lower extreme and is equipped with pressure pipe (9), and pressure pipe (9) other end fixed connection drive arrangement (8), be equipped with pressure reduction means (11) and switching device (10) intercommunication drive arrangement (8) on pressure pipe (9) in proper order.
2. The self-operated bidirectional pneumatic quick cut-off valve as claimed in claim 1, wherein the first valve port (2) and the second valve port (3) are symmetrically provided with the sealing device (4) by one side of the spherical channel valve ring (5), and the sealing device (4) comprises a sealing ring (41), a limiting groove (42), a sealing spring (43) and a rubber ring (44).
3. The self-operated bidirectional pneumatic quick cut-off valve as claimed in claim 2, wherein a hole is formed in the middle of the sealing ring (41), the hole of the sealing ring (41) is small in left and large in right, and is attached to the outer wall of the spherical channel valve ring (5), a plurality of limiting grooves (42) are annularly formed in the left end face of the sealing ring (41), sealing springs (43) are arranged in the limiting grooves (42), and a plurality of rubber rings (44) are arranged at the upper end of the peripheral side of the sealing ring (41).
4. The self-operated bidirectional pneumatic quick cut-off valve as claimed in claim 1, wherein the upper end and the lower end of the cut-off valve body (1) are symmetrically provided with fixing seats (7), and the linkage rod (6) is movably connected with the fixing seats (7).
5. The self-operated bidirectional pneumatic quick cut-off valve as claimed in claim 1, wherein the linkage rod (6) passes through the end surface of the fixed seat (7), and the lower end of the gear (81) is fixedly connected with the linkage rod (6).
6. The self-operated bidirectional pneumatic quick cut-off valve as claimed in claim 1, wherein the pressure reducing device (11) comprises a pressure reducing cavity (111), a buffer plate (112), a pressure reducing spring (113), a spring seat (114), a sealing plastic sheet (115), a connecting rod (116) and a limiting plate (117).
7. The self-operated bidirectional pneumatic quick cut-off valve as claimed in claim 6, wherein the pressure reduction chamber (111) is internally provided with a buffer plate (112) fixedly mounted on one side of the driving device (8), the pressure reduction chamber (111) is internally provided with a connecting rod (116), the connecting rod (116) is internally provided with a spring seat (114) fixedly mounted on one side, the spring seat (114) is fixedly provided with a sealing plastic sheet (115) at the middle part, the spring seat (114) is fixedly provided with a pressure reduction spring (113), the connecting rod (116) is fixedly provided with a limiting plate (117) at the other end, the limiting plate (117) is in a circular truncated cone shape, and the side wall of the limiting plate (117) is attached to the lower end.
8. A self-operated bidirectional pneumatic quick cut-off valve as claimed in claim 1, wherein the switch device (10) comprises a limit ring (101), an internal groove (102), a switch spring (103), a sealing bead (104), a fixing plate (105) and a push-down switch (106).
9. A self-operated bidirectional pneumatic quick cut-off valve as claimed in claim 8, wherein a limiting ring (101) is fixedly mounted on the bottom of the groove at one side of the built-in groove (102) close to the driving device (8), a switch spring (103) is fixedly mounted at the other side of the limiting ring (101), and a sealing bead (104) is fixedly mounted at the other end of the switch spring (103).
10. A self-operated bidirectional pneumatic quick cut-off valve as claimed in claim 8, wherein a fixing plate (105) is arranged on the other side of the sealing bead (104), a push-down switch (106) is fixedly mounted on the fixing plate (105), and the push-down switch (106) penetrates out of the pressure guiding pipe (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011639247.XA CN112728199A (en) | 2020-12-31 | 2020-12-31 | Self-operated bidirectional pneumatic quick cut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011639247.XA CN112728199A (en) | 2020-12-31 | 2020-12-31 | Self-operated bidirectional pneumatic quick cut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112728199A true CN112728199A (en) | 2021-04-30 |
Family
ID=75609009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011639247.XA Pending CN112728199A (en) | 2020-12-31 | 2020-12-31 | Self-operated bidirectional pneumatic quick cut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112728199A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113819262A (en) * | 2021-10-18 | 2021-12-21 | 深圳市凯豪达氢能源有限公司 | Cut-off ball valve capable of being quickly closed |
| CN113864666A (en) * | 2021-10-18 | 2021-12-31 | 深圳市凯豪达氢能源有限公司 | Cut off stop valve fast |
| CN114427619A (en) * | 2022-02-11 | 2022-05-03 | 泉瓦特斯阀门有限公司 | Self-operated piston type flow-regulating pressure-regulating valve |
-
2020
- 2020-12-31 CN CN202011639247.XA patent/CN112728199A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113819262A (en) * | 2021-10-18 | 2021-12-21 | 深圳市凯豪达氢能源有限公司 | Cut-off ball valve capable of being quickly closed |
| CN113864666A (en) * | 2021-10-18 | 2021-12-31 | 深圳市凯豪达氢能源有限公司 | Cut off stop valve fast |
| CN113819262B (en) * | 2021-10-18 | 2022-12-13 | 深圳市凯豪达氢能源有限公司 | Cut-off ball valve capable of being quickly closed |
| CN113864666B (en) * | 2021-10-18 | 2023-11-28 | 深圳市凯豪达氢能源有限公司 | Quick cut-off stop valve |
| CN114427619A (en) * | 2022-02-11 | 2022-05-03 | 泉瓦特斯阀门有限公司 | Self-operated piston type flow-regulating pressure-regulating valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112728199A (en) | Self-operated bidirectional pneumatic quick cut-off valve | |
| CN105545858B (en) | A kind of special Pneumatic valve of pneumohydraulic pressure-cylinder and pneumohydraulic pressure-cylinder | |
| CN105952698A (en) | Gas-liquid pressurized cylinder | |
| CN103438238A (en) | Three-way type pilot operated check valve | |
| CN106885022B (en) | Well head safety promptly cuts device | |
| CN201551751U (en) | Automatic switching escape device | |
| CN201934649U (en) | Pressure water storage barrel | |
| CN212928369U (en) | Oil pressure cylinder with self-locking function | |
| CN205937882U (en) | Pneumatic quick closing valve butterfly valve of jumbo size | |
| CN202579158U (en) | Pressure-maintaining lead high-pressure pneumatic control unloading valve | |
| CN103192816A (en) | Multichannel control pressure relay valve | |
| CN208221685U (en) | A kind of pilot operated safety valve | |
| CN204200540U (en) | A kind of high pressure washer pump | |
| CN203570733U (en) | Differential-pressure-type automatic gas busbar switching device | |
| CN202992283U (en) | Tandem double-valve-plug one-way valve for high pressure and redundancy sealing | |
| CN102287164B (en) | Control valve for hydraulic well mouth safety valve control system | |
| CN211139298U (en) | Vertical pressure-limiting multifunctional protective valve | |
| CN205331495U (en) | Automatic bypass valve resets | |
| CN2517920Y (en) | Remote control valve | |
| CN109835319B (en) | Air system pressurization arresting gear | |
| CN2277013Y (en) | Automatic close valve of gas pipeline | |
| RU2502005C1 (en) | Three-way valve | |
| CN206092987U (en) | Electronic selection valve of guide's formula | |
| CN219317296U (en) | Be used for pure gas accuse double insurance to be along with stopping gas way control system | |
| CN203404408U (en) | Half-ball valve device with sealing mistake-proofing structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210430 |