CN207161770U - A kind of gas emergency cut-off valve - Google Patents
A kind of gas emergency cut-off valve Download PDFInfo
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- CN207161770U CN207161770U CN201720982052.2U CN201720982052U CN207161770U CN 207161770 U CN207161770 U CN 207161770U CN 201720982052 U CN201720982052 U CN 201720982052U CN 207161770 U CN207161770 U CN 207161770U
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- flap
- gas
- valve
- drive rod
- emergency cut
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Abstract
The utility model provides a kind of gas emergency cut-off valve, belongs to Solenoid Valve Technology field.It solves the problems, such as existing gas emergency cut-off valve maintenance trouble.This gas emergency cut-off valve, including the valve body with air inlet and gas outlet, flap is provided with valve body, have on valve body and perform port, electromagnetic actuator is also associated with valve body, the electromagnetic actuator, which has to stretch into, performs the drive rod that port is connected with flap and drives flap movement to realize combustion gas break-make, rubber diaphragm is fixed with flap, the outer edge of the rubber diaphragm is connected with valve seal, and rubber diaphragm will perform port capping, and drive rod is located at the outside of rubber diaphragm.This gas emergency cut-off valve can avoid gas leakage, and overhaul and more facilitate.
Description
Technical field
The utility model belongs to Solenoid Valve Technology field, is related to a kind of gas emergency cut-off valve.
Background technology
Mainly with the safety product on fuel gas pipeline, it is connected gas emergency cut-off valve with flammable gas alarm,
When flammable gas alarm detects gas leakage, flammable gas alarm can be sent out in the very first time to gas emergency cut-off valve
Pulse signal is sent, gas emergency cut-off valve does pass valve events, cuts off source of the gas from source, ensures safety, the series of products belong to the people
Valve, and the self-sustaining encapsulation explosion-proof type magnetic valve of on off state are closed with level hand-reset valve opening, electric pulse driving, is house
The safe emergency shearing device of interior gas pipeline, realize scene or remote auto/manual emergency cut-out source of the gas, it is ensured that pacified with gas
Entirely.
Such as Chinese invention patent application (application number：201010202079.8) to disclose a kind of normally closed semiautomatic gas tight
Eager power-off magnet valve, the magnetic valve include electromagnetic coil assembly, bonnet assemblies, valve body and valve opening Handleset, magnet coil group
Part is to be mutually clamped with bonnet assemblies, and the two can be dismantled, and the inlet plenum of bonnet assemblies and valve body is spirally connected fixation, the outlet of valve body
Chamber is equipped with valve opening Handleset, and valve opening Handleset is fastened with back-up ring and connected, and back-up ring is spirally connected with mandrel, on the lower convex platform of back-up ring
It is cased with plain seal film, mandrel is cylindrical to be cased with spring, and during solenoid valves, electric capacity is charged, when magnetic valve powers off, electric capacity release electricity
Can, make coil working produce with the opposite polarity electromagnetic field of permanent magnetic field, reduce the magnetic force of permanent magnetic field, make spring promote mandrel,
Back-up ring moves, and closes valve, and because Handleset is for manually operated, therefore the magnetic valve is arranged with sealing ring on handle and entered
Row sealing, but because handle belongs to moving component, its long-term use can cause ring wear, gas leakage easily occur,
Although electromagnetic coil assembly is detachable simultaneously, seal isolation is lacked between electromagnetic coil assembly and valve body, therefore dismantling
Need cut-out main gas valve to be operated when electromagnetic coil assembly is changed, cause maintenance to bother.
The content of the invention
The purpose of this utility model is above mentioned problem be present for existing technology, it is proposed that a kind of gas emergency cut-off
Valve, the gas emergency cut-off valve can avoid gas leakage, and overhaul and more facilitate.
The purpose of this utility model can be realized by following technical proposal：A kind of gas emergency cut-off valve, including with
Air inlet and the valve body of gas outlet, the valve body is interior to be provided with flap, has on the valve body and performs port, is also connected with valve body
Have electromagnetic actuator, the electromagnetic actuator have stretch into perform port be connected with flap and drive flap move realize combustion gas
The drive rod of break-make, it is characterised in that be fixed with rubber diaphragm on the flap, the outer edge and valve seal of the rubber diaphragm
It is connected, and rubber diaphragm will perform port capping, above-mentioned drive rod is located at the outside of rubber diaphragm.
The gas emergency cut-off valve is used cooperatively with flammable gas alarm, and drive rod is to moving up during normal operating condition
It is dynamic so that flap is opened, and combustion gas realizes circulation by air inlet and gas outlet, when flammable gas alarm detects gas leakage
When can to gas emergency cut-off valve electromagnetic actuator send signal, electromagnetic actuator by drive rod move flap,
So that flap is closed, so as to block the connection of air inlet and gas outlet, wherein because the middle part of rubber diaphragm is connected with flap, side
Along being connected with valve body, so as to which the execution port of valve body be covered, i.e., electromagnetic actuator is located at the outside of rubber diaphragm, even if
Combustion gas will not also enter in electromagnetic actuator when flap is opened, and sealing ring is arranged on handle with traditional stop valve, is made for a long time
Occur gas leakage with ring wear is caused and compare, this gas emergency cut-off valve is without in electromagnetic actuator or hand
Sealing ring is set on handle, so as to improve the sealing of reliability and valve body, avoids gas leakage, simultaneously because electromagnetism performs machine
Structure is located at the outside of rubber diaphragm, therefore need not close main gas valve when changing the service works such as electromagnetic actuator, directly
Electromagnetic actuator is pulled down so that maintenance is more convenient.
In above-mentioned gas emergency cut-off valve, bonnet is fixed with the execution port of the valve body, above-mentioned electromagnetism performs
Mechanism is connected on bonnet, and drive rod is connected through bonnet with flap, and the outer edge sealing of the rubber diaphragm is connected in
Between the execution port edges and bonnet of valve body.The structure of valve body and bonnet is easy to assemble, and junction between the two is direct
Sealed by the edge of rubber diaphragm, i.e., with preferable sealing effectiveness, while connection function is played to rubber diaphragm, made
Obtain rubber diaphragm and carry out sealing capping to performing port.
In above-mentioned gas emergency cut-off valve, the intraoral edge of actuating station circumferentially has seal groove, the rubber membrane
The outside of piece circumferentially has sealing fin, and the sealing fin is located in seal groove and is clamped in bonnet lower surface and seal groove bottom
Between face.Sealing fin is stretched in seal groove, so as to be sealed to the junction between valve body and bonnet, while causes rubber
The connection of glue film is more stable.
In above-mentioned gas emergency cut-off valve, the inner of the air inlet is connected by crossing gas port with body cavity, and
Cross that gas port is relative with flap, the middle part of the rubber diaphragm has the sealing of plate-like, and above-mentioned flap is connected in the upper of sealing
On side, when the downside of the flap to sealing when crossing gas port movement was pressed on the port edges of gas port.Electromagnetism is held
Row mechanism is by driving flap movement to realize break-make, i.e. electromagnetic actuator drives flap to move down so that sealing compresses
Cross gas port port edges realize sealing, so as to block air inlet, with should electromagnetic actuator drive flap move up
When sealing departed from the port edges of gas port, realize the connection of air inlet and gas outlet.
In above-mentioned gas emergency cut-off valve, there is groove on the upper side of the sealing, on the cell wall of the groove
Circumferential to have link slot, the outside of the flap circumferentially has connection convex edge, and the flap is located in groove, and connects convex edge
It is connected in link slot.Flap is connected by connecting convex edge with sealing, and sealing has flexibility, therefore is changing electromagnetism
Flap is pulled out into groove during executing agency, it is more convenient to change.
In above-mentioned gas emergency cut-off valve, the stepped hole of insertion is offered on the flap, is worn in stepped hole
There is connecting bolt, screw is offered on the lower surface of the drive rod, the end of the connecting bolt is stretched out stepped hole and is spirally connected
In the screw of drive rod.Flap is connected by connecting bolt with drive rod, can be held by adjusting connecting bolt in electromagnetism
The position of flap is adjusted in the case that row actuator travel is constant, sealing and is crossed between gas port port edges during so as to adjust closing
Thrust.
In above-mentioned gas emergency cut-off valve, the electromagnetic actuator includes the opening-like cylindrical case in lower end,
The bonnet has tubular connecting portion protruding upward, and the lower end of the shell is set on connecting portion and consolidated by clamping screw
Fixed, above-mentioned drive rod is through connecting portion and stretches into shell.Electromagnetic actuator is set on connecting portion and passes through clamping screw
Fixed, it is more convenient that the structure make it that electromagnetism performs structure dismounting.
In above-mentioned gas emergency cut-off valve, coiling is fixed with the outer casing inner wall, the drive rod is
Iron core, and the upper end of drive rod is slided and is located in coiling, is also fixed with fixed core in the shell, the fixed core is located at
The top of drive rod is simultaneously relative with dynamic driving rod end surface, and the lower end of the drive rod is arranged with spring, the lower end of the spring against
On flap upper side, upper end is resisted against on connecting portion inner face.Drive rod is dynamic iron core, when drive rod moves up, and is driven
The upper end of lever can be adsorbed when mutually being reclined with fixed core, and now spring is compressed, and flap is in opening, when flammable
Gas alarm sends a signal to electromagnetic actuator when detecting gas leakage, the coiling of electromagnetic actuator be powered and
Downward magnetic thrust is produced to drive rod so that drive rod overcomes the absorption affinity of fixed core and departs from fixed core, with reference to spring
Elastic force flap is moved down and is pressed on the aperture edge of air passing hole, realize the closing of gas emergency cut-off valve.
In above-mentioned gas emergency cut-off valve, the upper end of the drive rod is fixed with control stick, is opened on the fixed core
Provided with through hole, through hole is offered in the upper end of shell, the upper end of the control stick sequentially passes through through hole and through hole, and is stretching
The end gone out, which is fixed with, carries button.Manual-up when needing to open to carry button, control stick can bring up drive rod so that drive
The upper end of lever and fixed core against and adsorb, realize the unlatching of gas emergency cut-off valve.
In above-mentioned gas emergency cut-off valve, there is the dustproof part of tubular around through hole on the upper surface of the shell,
Dirt-proof boot is bolted with the dustproof part, above-mentioned control stick passes through dirt-proof boot, the lower surface of the dirt-proof boot and the upper end of shell
Dust-proof O-ring is provided between face.Control stick is needed to stretch out shell, therefore dustproof part is set on shell, by anti-in dustproof part
Dirt covers and dust-proof O-ring realizes sealing, avoids dust from entering shell and influence electromagnetic actuator.
Compared with prior art, this gas emergency cut-off valve has advantages below：
1st, because the middle part of rubber diaphragm is connected with flap, edge is connected with valve body, so as to which the execution port of valve body be sealed
Cover, i.e., electromagnetic actuator is located at the outside of rubber diaphragm, and combustion gas also will not be into electromagnetism execution machine when being opened even if flap
In structure, therefore without setting sealing ring in electromagnetic actuator, so as to improve the sealing of reliability and valve body, avoid firing
Gas leakage.
2nd, because electromagnetic actuator is located at the outside of rubber diaphragm, therefore the service works such as electromagnetic actuator are being changed
Shi Wuxu closes main gas valve, directly pulls down electromagnetic actuator so that maintenance is more convenient.
3rd, because sealing fin is stretched in seal groove, that is, the capping to performing port is realized, and to valve body and bonnet
Between junction sealed, while make it that the connection of rubber diaphragm is more stable, use is relatively reliable.
Brief description of the drawings
Fig. 1 is structure sectional view when gas emergency cut-off valve is opened.
Fig. 2 is the schematic enlarged-scale view at A in Fig. 1.
Fig. 3 is structure sectional view when gas emergency cut-off valve is closed.
Fig. 4 is the structure sectional view at another visual angle when gas emergency cut-off valve is opened.
In figure, 1, valve body；11st, air inlet；12nd, gas outlet；13rd, gas port is crossed；14th, port is performed；15th, seal groove；2nd, valve
Lid；21st, connecting portion；3rd, electromagnetic actuator；31st, shell；311st, clamping screw；312nd, through hole；313rd, dustproof part；32nd, drive
Bar；321st, screw；33rd, coiling；34th, fixed core；341st, through hole；4th, flap；41st, convex edge is connected；42nd, stepped hole；43、
Connecting bolt；5th, rubber diaphragm；51st, fin is sealed；52nd, sealing；521st, groove；522nd, link slot；6th, spring；7th, manipulate
Bar；71st, button is carried；8th, dirt-proof boot；81st, dust-proof O-ring.
Embodiment
It is specific embodiment of the utility model and with reference to accompanying drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
As shown in figure 1, a kind of gas emergency cut-off valve, including valve body 1, bonnet 2 and electromagnetic actuator 3, valve body 1 have
Air inlet 11 and gas outlet 12, the inner of air inlet 11 are connected with the inner chamber of valve body 1 by crossing gas port 13, have on valve body 1 and perform
Port 14, bonnet 2 are connected on valve body 1 and covered to performing port 14, and electromagnetic actuator 3 is connected on bonnet 2, should
Electromagnetic actuator 3 has drive rod 32, and the lower end of drive rod 32 through bonnet 2 and execution port 14 and is stretched into valve body 1, tied
Close shown in Fig. 2, flap 4 is provided with valve body 1, the flap 4 offers the stepped hole of insertion with crossing gas port 13 relatively on flap 4
42, connecting bolt 43 is equipped with stepped hole 42, screw 321 is offered on the lower surface of drive rod 32, connecting bolt 43
End is stretched out stepped hole 42 and is screwed onto in the screw 321 of drive rod 32.Rubber diaphragm 5 is additionally provided with valve body 1, the rubber diaphragm
5 outside circumferentially has sealing fin 51, and performing the inner edge of port 14 circumferentially has seal groove 15, and sealing fin 51 is located at
In seal groove 15 and be clamped between the lower surface of bonnet 2 and the bottom surface of seal groove 15, that is, seal fin 51 to valve body 1 and bonnet 2 it
Between junction sealed, while cause rubber diaphragm 5 by perform port 14 seal capping.The middle part of rubber diaphragm 5 has
The sealing 52 of plate-like, the downside of the sealing 52 is relative with crossing gas port 13, has groove on the upper side of sealing 52
521, circumferentially there is link slot 522, the outside of flap 4 circumferentially has connection convex edge 41, flap 4 on the cell wall of the groove 521
In groove 521, and connect convex edge 41 and be connected in link slot 522, realize being fixedly connected for flap 4 and sealing 52, knot
Close shown in Fig. 3, electromagnetic actuator 3 drives the movement of flap 4 to realize break-make by drive rod 32, i.e. electromagnetic actuator 3 drives
Flap 4 moves down so that and the port edges that sealing 52 was pressed on gas port 13 realize sealing, so as to block air inlet 11,
With should electromagnetic actuator 3 drive the flap 4 to move up when sealing 52 departed from the port edges of gas port 13, realize air inlet
Mouth 11 and the connection of gas outlet 12.
With reference to shown in Fig. 4, electromagnetic actuator 3 includes the shell 31 of tubular, and the lower end of the shell 31 is opening-like, shell
31 have tubular connecting portion 21 protruding upward, and the lower end of shell 31 is set on connecting portion 21 and consolidated by clamping screw 311
It is fixed, be fixed with coiling 33 on the inwall of shell 31, drive rod 32 be dynamic iron core, and the upper end slip of drive rod 32 be located in around
In coil 33 processed, fixed core 34 is also fixed with shell 31, the fixed core 34 be located at the top of drive rod 32 and with dynamic drive rod
32 end faces are relative, and the lower end of drive rod 32 is arranged with spring 6, and the lower end of the spring 6 is resisted against on the upper side of flap 4, and upper end is supported
Lean against on the inner face of connecting portion 21.The upper end of drive rod 32 is fixed with control stick 7, and through hole 341 is offered on fixed core 34,
The upper end of shell 31 offers through hole 312, and the upper end of control stick 7 sequentially passes through through hole 341 and through hole 312, and in stretching
End, which is fixed with, carries button 71.There is the dustproof part 313 of tubular, spiral shell in dustproof part 313 on the upper surface of shell 31 around through hole 312
Dirt-proof boot 8 is connected to, control stick 7 passes through dirt-proof boot 8, and dust-proof O shapes are provided between the lower surface of dirt-proof boot 8 and the upper surface of shell 31
Circle 81.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Although more having used the terms such as valve body 1, air inlet 11, gas outlet 12 herein, it is not precluded from using other
The possibility of term.It is used for the purpose of more easily describing and explaining essence of the present utility model using these terms；Them
Any additional limitation is construed to all to disagree with the utility model spirit.
Claims (10)
1. a kind of gas emergency cut-off valve, including the valve body (1) with air inlet (11) and gas outlet (12), the valve body (1)
It is interior to be provided with flap (4), have on the valve body (1) and perform port (14), electromagnetic actuator is also associated with valve body (1)
(3), the electromagnetic actuator (3) has to stretch into perform port (14) and be connected with flap (4) and drive flap (4) movement to realize and fired
The drive rod (32) of gas break-make, it is characterised in that rubber diaphragm (5) is fixed with the flap (4), the rubber diaphragm (5)
Outer edge is connected with valve body (1) sealing, and rubber diaphragm (5) will perform port (14) capping, and above-mentioned drive rod (32) is located at rubber
The outside of glue film (5).
2. gas emergency cut-off valve according to claim 1, it is characterised in that the execution port (14) of the valve body (1)
Place is fixed with bonnet (2), and above-mentioned electromagnetic actuator (3) is connected on bonnet (2), and drive rod (32) through bonnet (2) with
Flap (4) is connected, and the outer edge sealing of the rubber diaphragm (5) is connected in execution port (14) edge and valve of valve body (1)
Cover between (2).
3. gas emergency cut-off valve according to claim 2, it is characterised in that described execution port (14) inner edge is circumferentially
With seal groove (15), the outside of the rubber diaphragm (5) circumferentially has sealing fin (51), and the sealing fin (51) is located at
In seal groove (15) and it is clamped between bonnet (2) lower surface and seal groove (15) bottom surface.
4. the gas emergency cut-off valve according to Claims 2 or 3, it is characterised in that the inner of the air inlet (11) leads to
Cross gas port (13) to connect with valve body (1) inner chamber, and cross gas port (13) and flap (4) relatively, the middle part of the rubber diaphragm (5)
Sealing (52) with plate-like, above-mentioned flap (4) are connected on the upper side of sealing (52), when the flap (4) is to mistake
The downside of sealing (52) was pressed on the port edges of gas port (13) when gas port (13) is mobile.
5. gas emergency cut-off valve according to claim 4, it is characterised in that have on the upper side of the sealing (52)
Fluted (521), circumferentially there is link slot (522) on the cell wall of the groove (521), the outside of the flap (4) circumferentially has
There is connection convex edge (41), the flap (4) is located in groove (521), and connects convex edge (41) and be connected in link slot (522).
6. gas emergency cut-off valve according to claim 5, it is characterised in that offer insertion on the flap (4)
Stepped hole (42), connecting bolt (43) is equipped with stepped hole (42), spiral shell is offered on the lower surface of the drive rod (32)
Hole (321), the end of the connecting bolt (43) are stretched out stepped hole (42) and are screwed onto in the screw (321) of drive rod (32).
7. the gas emergency cut-off valve according to Claims 2 or 3, it is characterised in that the electromagnetic actuator (3) includes
The opening-like cylindrical case in lower end (31), the bonnet (2) have tubular connecting portion (21) protruding upward, the shell
(31) lower end is set on connecting portion (21) and fixed by clamping screw (311), and above-mentioned drive rod (32) passes through connecting portion
(21) and stretch into shell (31).
8. gas emergency cut-off valve according to claim 7, it is characterised in that be fixed with shell (31) inwall around
Coil (33) processed, the drive rod (32) is dynamic iron core, and the upper end of drive rod (32) is slided and is located in coiling (33),
Fixed core (34) is also fixed with the shell (31), the fixed core (34) be located at the top of drive rod (32) and with dynamic drive rod
(32) end face is relative, and the lower end of the drive rod (32) is arranged with spring (6), and the lower end of the spring (6) is resisted against on flap (4)
On side, upper end is resisted against on connecting portion (21) inner face.
9. gas emergency cut-off valve according to claim 8, it is characterised in that the upper end of the drive rod (32) is fixed with
Control stick (7), through hole (341) is offered on the fixed core (34), through hole (312) is offered in the upper end of shell (31),
The upper end of the control stick (7) sequentially passes through through hole (341) and through hole (312), and is fixed with the end of stretching and carries button
(71)。
10. gas emergency cut-off valve according to claim 9, it is characterised in that ring on the upper surface of the shell (31)
There is the dustproof part (313) of tubular around through hole (312), dirt-proof boot (8), above-mentioned control stick are bolted with the dustproof part (313)
(7) dirt-proof boot (8) is passed through, dust-proof O-ring is provided between the lower surface of the dirt-proof boot (8) and the upper surface of shell (31)
(81)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720982052.2U CN207161770U (en) | 2017-08-08 | 2017-08-08 | A kind of gas emergency cut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720982052.2U CN207161770U (en) | 2017-08-08 | 2017-08-08 | A kind of gas emergency cut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207161770U true CN207161770U (en) | 2018-03-30 |
Family
ID=61715358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720982052.2U Active CN207161770U (en) | 2017-08-08 | 2017-08-08 | A kind of gas emergency cut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207161770U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114382929A (en) * | 2021-11-12 | 2022-04-22 | 上海线友电子有限公司 | Intelligent electromagnetic type gas emergency cut-off valve |
-
2017
- 2017-08-08 CN CN201720982052.2U patent/CN207161770U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114382929A (en) * | 2021-11-12 | 2022-04-22 | 上海线友电子有限公司 | Intelligent electromagnetic type gas emergency cut-off valve |
| CN114382929B (en) * | 2021-11-12 | 2023-12-12 | 上海线友电子有限公司 | Intelligent electromagnetic gas emergency cut-off valve |
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