CN113048273A - Transverse sealing self-closing valve - Google Patents
Transverse sealing self-closing valve Download PDFInfo
- Publication number
- CN113048273A CN113048273A CN202110394703.7A CN202110394703A CN113048273A CN 113048273 A CN113048273 A CN 113048273A CN 202110394703 A CN202110394703 A CN 202110394703A CN 113048273 A CN113048273 A CN 113048273A
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- China
- Prior art keywords
- valve body
- assembly
- air film
- closing valve
- gas
- 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
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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
- F16K21/00—Fluid-delivery valves, e.g. self-closing valves
- F16K21/04—Self-closing valves, i.e. closing automatically after operation
- F16K21/16—Self-closing valves, i.e. closing automatically after operation closing after a predetermined quantity of fluid has been delivered
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/048—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded combined with other safety valves, or with pressure control devices
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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
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
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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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
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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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0091—For recording or indicating the functioning of a valve in combination with test equipment by measuring fluid parameters
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention discloses a transverse sealing self-closing valve, and aims to provide a transverse sealing self-closing valve which is easy to use and high in safety. The air film sealing valve comprises a valve body and an air film driving assembly, wherein an air film, a first air inlet and a sealing assembly are arranged in the valve body, the air film driving assembly is arranged on the valve body, the lower end of the air film driving assembly is arranged on the air film, an inclined driving rod which is magnetically attracted with the air film driving assembly is arranged at the lower end of the air film, and the inclined part of the inclined driving rod drives the sealing assembly to open/close the first air inlet. The invention is applied to the technical field of gas self-closing valves.
Description
Technical Field
The invention relates to a transverse sealing self-closing valve.
Background
The fuel gas is used as clean energy with low consumption, high income, low pollution and high benefit, and is widely applied to daily production and life of people. In order to ensure the safe use of the gas, a gas valve needs to be installed on the gas pipeline, and when the gas supply pressure of the pipeline is under-pressure, over-pressure and abnormal flow, the gas valve can be closed to cut off the supply of the gas. However, the traditional gas valve has low control precision, needs manual closing when under-pressure or overpressure occurs, is relatively complicated, cannot be cut off in time, and has relatively low safety. Therefore, there is a need to develop a lateral sealing self-closing valve which is easy to use and has high safety.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and provides a transverse sealing self-closing valve which is easy to use and high in safety.
The technical scheme adopted by the invention is as follows: the valve comprises a valve body and an air film driving assembly, wherein an air film, a first air inlet, a sealing assembly and a reset fixing plate are arranged in the valve body, the air film driving assembly is arranged on the valve body, the lower end of the air film driving assembly is arranged on the air film, an inclined driving rod which is magnetically attracted with the air film driving assembly is arranged at the lower end of the air film, the reset fixing plate is magnetically attracted with the top of the inclined driving rod, and the inclined part of the inclined driving rod drives the sealing assembly to open/close the first air inlet.
Furthermore, one end of the valve body is provided with a flow limiting valve communicated with the first air inlet, a flow limiting ring assembly, a movable plate and a cover plate are arranged in the flow limiting valve, the movable plate is arranged on the inner side of the cover plate in a matched mode, the flow limiting ring assembly is matched with the movable plate, a plurality of second air inlets are formed in the cover plate, and a reset spring is arranged between the flow limiting ring assembly and the movable plate in a matched mode.
Further, the gas film drive assembly is including setting up handle and the moving part on the valve body, the lower extreme setting of moving part is in on the gas film, the inboard threaded connection of handle has the jacking subassembly, the outside of jacking subassembly be provided with valve body matched with stopper, the inboard of jacking subassembly be provided with moving part matched with jacking piece.
Further, the other end of the valve body is provided with a ball valve assembly.
Further, the upper end of the moving part is provided with a normal pressure state display part and a high pressure state display part positioned below the normal pressure state display part.
Furthermore, a first roller and a second roller are rotatably matched in the sealing assembly, and the inclined driving rod is arranged between the first roller and the second roller in a matched mode.
Furthermore, a limiting fixing plate is further arranged in the valve body, a guide hole is formed in the limiting fixing plate, the limiting fixing plate is sleeved on the outer wall of the vertical rod through the guide hole, the limiting fixing plate and the top of the inclined driving rod are magnetically attracted, the inclined driving rod comprises a vertical rod and an inclined rod connected with the lower end of the vertical rod, a guide pillar is arranged at the lower end of the vertical rod, the inclined rod is arranged in the sealing assembly in a matched mode and drives the sealing assembly to move, and the guide pillar is located below the limiting fixing plate and matched with the limiting fixing plate.
Further, the bottom of the air film driving component is provided with a magnetic conductive iron piece, the top of the inclined driving rod is provided with a magnet which is magnetically attracted with the magnetic conductive iron piece, the reset fixing plate is the magnetic conductive iron piece, and the magnet is magnetically attracted with the reset fixing plate.
Further, a detection air nozzle is further arranged in the valve body.
Further, a magnet is arranged in the handle, a magnetic steel piece located below the magnet is arranged at the top of the valve body, and the magnet and the magnetic steel piece are attracted mutually.
The invention has the beneficial effects that: compared with the defects of the prior art, in the invention, when in use, the air film driving assembly drives the air film to bulge upwards, the inclined driving rod is further separated after moving upwards to a certain extent, and is reset due to the magnetic attraction of the reset fixing plate, and in the process of moving upwards of the inclined driving rod, the inclined part of the inclined driving rod drives the sealing assembly to move transversely, so that the first air inlet is opened, gas can enter the valve body, and the air film can be further maintained in the upwards bulged state; when the gas pressure is abnormal and is too high, the valve body gradually becomes a high-pressure state due to continuous gas intake inside, the gas continuously blows the gas film upwards, when the upward pulling force exceeds the degree of suction between the gas film driving assembly and the top of the inclined driving rod, the inclined driving rod falls off and moves downwards due to the magnetic attraction of the reset fixing plate until the inclined driving rod resets, so that the inclined part of the inclined driving rod drives the sealing assembly to close the first gas inlet, and the gas film driving assembly reset; when gas pressure is not enough, the valve body is in a low-pressure state, the gas film is not enough to overcome by the thrust of gas, the gas film driving assembly and the magnetic attraction force between the tops of the inclined driving rods enable the gas film to be directly reset, and therefore the first gas inlet is closed. Therefore, the air film, the first air inlet, the sealing assembly, the valve body and the air film driving assembly are arranged, so that the valve can be automatically opened/closed according to the state inside the valve body, and the valve has the advantages of easiness in use and high safety.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view of another embodiment of the present invention;
FIG. 3 is a cross-sectional view of the present invention;
fig. 4 is a partially enlarged schematic view of a portion a of fig. 3;
fig. 5 is a partially enlarged schematic view of a portion B of fig. 3;
FIG. 6 is a schematic perspective view of the movable plate and the cover plate;
FIG. 7 is a perspective view of the seal assembly and the tilt drive rod
Fig. 8 is a schematic perspective view of the magnetically permeable steel member.
Detailed Description
As shown in fig. 1 to 8, in this embodiment, the present invention includes a valve body 1 and an air film driving assembly 2, an air film 3, a first air inlet 4, a sealing assembly 5 and a reset fixing plate 24 are disposed in the valve body 1, the air film driving assembly 2 is disposed on the valve body 1, a lower end of the air film driving assembly 2 is disposed on the air film 3, an inclined driving rod 6 magnetically attracted to the air film driving assembly 2 is disposed at a lower end of the air film 3, the reset fixing plate 24 is magnetically attracted to a top of the inclined driving rod 6, and an inclined portion of the inclined driving rod 6 drives the sealing assembly 5 to open/close the first air inlet 4. Compared with the defects of the prior art, in the invention, in use, the air film 3 is driven by the air film driving assembly 2 to bulge upwards, so that the inclined driving rod 6 moves upwards to a certain extent, and in the process of moving upwards the inclined driving rod 6, the inclined part of the inclined driving rod 6 drives the sealing assembly 5 to move transversely, so that the first air inlet 4 is opened, gas can enter the valve body 1, and the air film 3 can be further maintained in an upwards bulged state; when the gas pressure is abnormal and is too high, the valve body 1 gradually becomes a high-pressure state due to continuous gas intake inside, the gas continuously blows the gas film 3 upwards, when the upward pulling force exceeds the degree of suction between the gas film driving assembly 2 and the top of the inclined driving rod 6, the inclined driving rod 6 falls off and moves downwards due to the magnetic attraction of the reset fixing plate 24 until the inclined driving rod 6 resets, so that the inclined part of the inclined driving rod 6 drives the sealing assembly 5 to close the first gas inlet 4, and the gas film 3 and the gas film driving assembly 2 reset; when the gas pressure is insufficient, the inside of the valve body 1 is in a low-pressure state, the gas film 3 is insufficient to overcome the magnetic attraction between the reset fixing plate 24 and the top of the inclined driving rod 6 due to the thrust of gas, so that the gas film 3 and the inclined driving rod 6 are directly reset, and the first gas inlet 4 is closed. Therefore, the gas film 3, the first gas inlet 4, the sealing assembly 5, the valve body 1 and the gas film driving assembly 2 are arranged, so that the valve can be automatically opened/closed according to the state of the inside of the valve body 1, and the valve has the advantages of easiness in use and high safety.
In this embodiment, one end of the valve body 1 is provided with a flow limiting valve 7 communicated with the first air inlet 4, the flow limiting valve 7 is provided with a flow limiting ring assembly 8, a movable plate 9 and a cover plate 91, the movable plate is arranged on the inner side of the cover plate in a matching manner, the flow limiting ring assembly 8 is matched with the movable plate 9, the cover plate 91 is provided with a plurality of second air inlets 10, and a return spring 11 is arranged between the flow limiting ring assembly 8 and the movable plate 9 in a matching manner. When gas enters the flow limiting valve 7, the gas enters the valve body 1 after passing through the second gas inlet 10 and the first gas inlet 4 in sequence, in the process, if the flow of the gas is too large, the gas in the process of entering the first gas inlet 4 pushes the movable plate 9 to move towards the flow limiting ring assembly 8, so that the movable plate 9 seals the flow limiting ring assembly 8, the gas cannot enter the first gas inlet 4, meanwhile, the pressure of the inner cavity is reduced due to insufficient gas flow entering the inner cavity, the thrust of the gas on the gas film driving assembly 2 is reduced, the inclined driving rod 6 is attracted by the reset fixing plate 24 to move downwards, and the sealing assembly 5 is driven to close the first gas inlet 4; when the gas flow is proper, the return spring 11 drives the movable plate 9 to return, so that the gas can continuously enter the valve body 1 after sequentially passing through the second gas inlet 10 and the first gas inlet 4.
In this embodiment, the gas film drive assembly 2 is including setting up handle 14 and moving part 15 on the valve body 1, the lower extreme setting of moving part 15 is in on the gas film 3, the inboard threaded connection of handle 14 has jacking subassembly 16, the outside of jacking subassembly 16 be provided with valve body 1 matched with stopper 17, the inboard of jacking subassembly 16 be provided with moving part 15 matched with jacking piece 18. When the first air inlet 4 needs to be opened, the handle 14 is pulled up manually, so that the handle 14 drives the jacking assembly 16 and the movable element 15 to move upwards, the air film 3 further swells upwards, and the inclined part of the inclined driving rod 6 drives the sealing assembly 5 to open/close the first air inlet 4.
In this embodiment, the other end of the valve body 1 is provided with a ball valve assembly 19.
In the present embodiment, the upper end of the movable element 15 is provided with a normal pressure state display portion 20 and a high pressure state display portion 21 located below the normal pressure state display portion 20. When the valve body 1 is in a normal pressure state, the handle 14 and the movable element 15 are pulled up, the normal pressure state display part 20 extends out of the top end of the valve body 1, and when the valve body 1 is in a high pressure state, the movable element 15 further extends out of the top end of the valve body 1, so that the high pressure state display part 21 can also extend out to warn a user.
In the embodiment, the sealing assembly 5 is rotatably engaged with a first roller 22 and a second roller 23, and the inclined rod 13 is engaged between the first roller 22 and the second roller 23. The cooperation of the inclined rod 13 with the first roller 22 and the second roller 23 enables the sealing assembly 5 to move horizontally to open/close the first air inlet 4.
In this embodiment, the valve body 1 is further provided with a reset fixing plate 24, a guide hole 25 is formed in the reset fixing plate 24, the reset fixing plate 24 is sleeved on the outer wall of the vertical rod 12 through the guide hole 25, the reset fixing plate 24 and the top of the inclined driving rod 6 are magnetically attracted, the inclined driving rod 6 includes the vertical rod 12 and an inclined rod 13 connected to the lower end of the vertical rod 12, the lower end of the vertical rod 12 is provided with a guide pillar 35, the inclined rod 13 is arranged in the sealing assembly 5 in a matching manner and drives the sealing assembly 5 to move, and the guide pillar 35 is located below the reset fixing plate 24 and is matched with the reset fixing plate 24. When the tilt driving rod 6 moves upward to a certain stroke, the top of the guide post 35 will be blocked by the reset fixing plate 24, so that the tilt driving rod 6 can not move upward any more.
In this embodiment, the bottom of the air film driving component 2 is provided with a magnetic conductive iron member j, the top of the tilt driving rod 6 is provided with a magnet k magnetically attracted to the magnetic conductive iron member j, the reset fixing plate 24 is a magnetic conductive iron member, and the magnet k is magnetically attracted to the reset fixing plate 24. Through the arrangement that the reset fixing plate 24 and the magnet k at the top of the tilt driving rod 6 are magnetically attracted, the tilt driving rod 6 can be reset through the magnetic attraction of the reset fixing plate 24 in the resetting process. When the tilt driving rod 6 moves upward to a certain stroke, the top of the guide post 35 will be blocked by the reset fixing plate 24, so that the tilt driving rod 6 can not move upward any more.
In this embodiment, the valve body 1 is further provided with a detection nozzle 30. During detection, gas is introduced into the valve body 1 through the detection gas nozzle 30, the gas enters a gas using pipeline through the other end of the valve body 1, the handle 14 is pulled up, the self-closing valve is in a normal opening working state, and when the gas using pipeline leaks, the self-closing valve is closed due to insufficient pressure; when the gas pipeline has no leakage, the self-closing valve is always kept in a normal opening state, so that whether the gas pipeline has leakage or not is checked.
In this embodiment, a magnet c is disposed in the handle 14, a magnetic steel piece d located below the magnet c is disposed at the top of the valve body 1, and the magnet c and the magnetic steel piece d are magnetically attracted to each other.
The using process of the invention is as follows:
when the gas film sealing valve is used, the gas film driving assembly 2 drives the gas film 3 to bulge upwards, so that the inclined driving rod 6 moves upwards, the top of the guide post 35 is blocked by the reset fixing plate 24 when the inclined driving rod 6 moves upwards to a certain stroke, so that the inclined driving rod 6 cannot move upwards any more, and in the process of moving upwards the inclined driving rod 6, the inclined part of the inclined driving rod 6 drives the sealing assembly 5 to move transversely, so that the first gas inlet 4 is opened, gas can enter the valve body 1, and further the gas film 3 can maintain the upwards bulged state. When the interior of the valve body 1 is in a high-pressure state, the gas will continue to blow the gas film 3 upwards, when the upward pulling force exceeds the degree of attraction between the magnetic conductive iron piece j and the magnet k, the tilt driving rod 6 will fall off, and the magnet k moves downwards due to the magnetic attraction of the reset fixing plate 24 until the tilt driving rod 6 resets, so that the tilt part of the tilt driving rod 6 drives the sealing assembly 5 to close the first gas inlet 4, and the gas film 3 and the gas film driving assembly 2 reset; when the interior of the valve body 1 is in a low-pressure state, the thrust of the gas film 3 is insufficient to overcome the magnetic attraction between the reset fixing plate 24 and the top of the tilt driving rod 6, so that the gas film 3 and the tilt driving rod 6 are directly reset, and the first gas inlet 4 is closed.
While the embodiments of the present invention have been described in terms of practical embodiments, they are not to be construed as limiting the meaning of the present invention, and modifications of the embodiments and combinations with other embodiments will be apparent to those skilled in the art in light of the present description.
Claims (10)
1. A transverse sealing self-closing valve is characterized in that: it includes valve body (1) and air film drive assembly (2), be provided with air film (3), first air inlet (4), seal assembly (5) and reset fixing plate (24) in valve body (1), air film drive assembly (2) set up on valve body (1), the lower extreme setting of air film drive assembly (2) is in on air film (3), the lower extreme of air film (3) be provided with slope actuating lever (6) that air film drive assembly (2) looks magnetism was inhaled, reset fixing plate (24) with the top looks magnetism of slope actuating lever (6) is inhaled, the slope drive of slope actuating lever (6) seal assembly (5) are opened/are closed first air inlet (4).
2. The transverse sealing self-closing valve according to claim 1, wherein: one end of the valve body (1) is provided with a flow limiting valve (7) communicated with the first air inlet (4), a flow limiting ring assembly (8), a movable plate (9) and a cover plate (91) are arranged in the flow limiting valve (7), the movable plate (9) is arranged on the inner side of the cover plate (91) in a matched mode, the flow limiting ring assembly (8) is matched with the movable plate (9), the cover plate (91) is provided with a plurality of second air inlets (10), and a reset spring (11) is arranged between the flow limiting ring assembly (8) and the movable plate (9) in a matched mode.
3. The transverse sealing self-closing valve according to claim 1, wherein: gas film drive assembly (2) is including setting up handle (14) and moving part (15) on valve body (1), the lower extreme setting of moving part (15) is in on gas film (3), the inboard threaded connection of handle (14) has jacking subassembly (16), the outside of jacking subassembly (16) be provided with valve body (1) matched with stopper (17), the inboard of jacking subassembly (16) be provided with moving part (15) matched with jacking piece (18).
4. The transverse sealing self-closing valve according to claim 1, wherein: the other end of the valve body (1) is provided with a ball valve component (19).
5. A laterally sealed self-closing valve according to claim 3, wherein: the upper end of the movable piece (15) is provided with a normal pressure state display part (20) and a high pressure state display part (21) positioned below the normal pressure state display part (20).
6. The transverse sealing self-closing valve according to claim 1, wherein: a first roller (22) and a second roller (23) are matched in the sealing assembly (5) in a rotating mode, and the inclined driving rod (6) is arranged between the first roller (22) and the second roller (23) in a matching mode.
7. The transverse sealing self-closing valve according to claim 1, wherein: a guide hole (25) is formed in the reset fixing plate (24), the reset fixing plate (24) is sleeved on the outer wall of the vertical rod (12) through the guide hole (25), the inclined driving rod (6) comprises a vertical rod (12) and an inclined rod (13) connected with the lower end of the vertical rod (12), a guide pillar (35) is arranged at the lower end of the vertical rod (12), the inclined rod (13) is arranged in the sealing assembly (5) in a matched mode and drives the sealing assembly (5) to move, and the guide pillar (35) is located below the reset fixing plate (24) and matched with the reset fixing plate (24).
8. The transverse sealing self-closing valve according to claim 7, wherein: air film drive assembly (2) bottom is provided with magnetic conduction iron spare (j), the top of slope actuating lever (6) be provided with magnet (k) that magnetic conduction iron spare (j) looks magnetism was inhaled, reset fixed plate (24) are magnetic conduction iron spare, magnet (k) with reset fixed plate (24) looks magnetism is inhaled.
9. The transverse sealing self-closing valve according to claim 1, wherein: the valve body (1) is also provided with a detection air nozzle (30).
10. A laterally sealed self-closing valve according to claim 3, wherein: the magnetic valve is characterized in that a magnet (c) is arranged in the handle (14), a magnetic steel piece (d) located below the magnet (c) is arranged at the top of the valve body (1), and the magnet (c) and the magnetic steel piece (d) are magnetically attracted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110394703.7A CN113048273A (en) | 2021-04-13 | 2021-04-13 | Transverse sealing self-closing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110394703.7A CN113048273A (en) | 2021-04-13 | 2021-04-13 | Transverse sealing self-closing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113048273A true CN113048273A (en) | 2021-06-29 |
Family
ID=76519202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110394703.7A Pending CN113048273A (en) | 2021-04-13 | 2021-04-13 | Transverse sealing self-closing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113048273A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113483133A (en) * | 2021-08-13 | 2021-10-08 | 河北秦汉电子科技有限公司 | Electromagnetic type safety self-closing valve with emergency cut-off function |
| TWI783768B (en) * | 2021-11-02 | 2022-11-11 | 陽明產業有限公司 | Pipeline gas self-closing device |
| CN115899345A (en) * | 2023-01-16 | 2023-04-04 | 宁波佳明金属制品有限公司 | Self-closing valve for pipeline |
-
2021
- 2021-04-13 CN CN202110394703.7A patent/CN113048273A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113483133A (en) * | 2021-08-13 | 2021-10-08 | 河北秦汉电子科技有限公司 | Electromagnetic type safety self-closing valve with emergency cut-off function |
| TWI783768B (en) * | 2021-11-02 | 2022-11-11 | 陽明產業有限公司 | Pipeline gas self-closing device |
| CN115899345A (en) * | 2023-01-16 | 2023-04-04 | 宁波佳明金属制品有限公司 | Self-closing valve for pipeline |
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