CN104514902B - A kind of gas valve - Google Patents

A kind of gas valve Download PDF

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Publication number
CN104514902B
CN104514902B CN201310445063.3A CN201310445063A CN104514902B CN 104514902 B CN104514902 B CN 104514902B CN 201310445063 A CN201310445063 A CN 201310445063A CN 104514902 B CN104514902 B CN 104514902B
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China
Prior art keywords
valve
spring
gas
pad
valve port
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Application number
CN201310445063.3A
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Chinese (zh)
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CN104514902A (en
Inventor
张柳清
张美雁
高展图
林凤玲
周卓君
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Jiangmen Shangyu Science & Technology Development Co Ltd
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Individual
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Priority to CN201310445063.3A priority Critical patent/CN104514902B/en
Publication of CN104514902A publication Critical patent/CN104514902A/en
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Publication of CN104514902B publication Critical patent/CN104514902B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/044Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with more than one spring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/048Safety 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/168Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side combined with manually-controlled valves, e.g. a valve combined with a safety valve
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/02Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0644One-way valve
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/12Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/14Actuating devices; Operating means; Releasing devices actuated by fluid for mounting on, or in combination with, hand-actuated valves
    • F16K31/145Actuating devices; Operating means; Releasing devices actuated by fluid for mounting on, or in combination with, hand-actuated valves the fluid acting on a diaphragm

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Preventing Unauthorised Actuation Of Valves (AREA)
  • Mechanically-Actuated Valves (AREA)

Abstract

The present invention relates to a kind of gas valve, including valve body, valve and main valve are protected.Described valve body includes valve seat and bonnet, wherein described bonnet is connected with valve seat make-up.The two ends of described valve seat are provided with air inlet and gas outlet.Described protection valve is arranged on the inlet port of valve seat, and main valve is arranged on the outlet port of valve seat.The protection valve includes valve port unit and transmission mechanism;The transmission mechanism drives valve port unit to realize the opening and closing of valve port;By the opening and closing of transmission mechanism control air intake valve, it is ensured that the air pressure of pipeline is relatively low or when super-pressure, can control being automatically switched off for air intake valve by the transmission mechanism, improve and use the security of gas pipeline.

Description

A kind of gas valve
Technical field
The present invention relates to a kind of gas valve, particularly a kind of gas valve that can be automatically switched off.
Background technology
With the raising of national life quality, people are also improved therewith to the demand of safety, and especially using for combustion gas is pacified Extremely pay close attention in all directions, pipe gas have been increasingly becoming indispensable dependence in today's society people's daily life, with Combustion gas is in the swift and violent development of China, and personal safety of the combustion gas in the safety and reliability for using to people is extremely important.But There may be the situation of superpressure supply in the case of the pressure regulator for using not enough precision, now in the presence of serious potential safety hazard. And when not enough in source of the gas, the phenomenon of under-voltage supply can be produced, it is impossible to enough stably persistently to supply, the life to people causes shadow Ring.
Fig. 1 is referred to, it is the section of structure of prior art.The burnt gas valve includes intake valve port 1a, outlet valve port 2a and valve knob switch 3a.The intake valve port is connected with outlet valve port, and valve knob switch is arranged on outlet valve port top.It is logical Cross the open and close that valve knob switch 3a controls outlet valve port.However, the valve mechanism does not have the effect being automatically switched off, Low pressure supply and super-pressure supply when can not automatic-closing valve, the life of people and personal safety can be caused Have a strong impact on.
The content of the invention
Shortcoming and deficiency it is an object of the invention to overcome prior art, there is provided a kind of elastic force or pulling force of use spring Mechanical mode realize the valve mechanism being automatically switched off.
The present invention is realized by following technical scheme:A kind of gas valve, including valve body, protect valve and main valve Door;The valve body includes bonnet and valve seat, and the bonnet is arranged on the top of valve seat, and the bonnet is connected with valve seat make-up;The valve Seat be respectively arranged at two ends with air inlet and gas outlet, between air inlet and gas outlet be valve port passage;Described protection valve sets Put between air inlet and gas outlet, and the air inlet of application valve body switch, main valve be arranged on protection valve and gas outlet Between, and the gas outlet of application valve body switch;
The protection valve includes valve port unit and transmission mechanism;Wherein, the valve port unit include sealing valve port pad and Motion bar;The transmission mechanism includes connection member, button spindle and control-rod;Described connection member includes epithelium;Described Control-rod includes movable axis, V-groove;The sealing valve port pad is arranged on one end of valve port pipeline and is connected with air inlet;It is described Button spindle is arranged on the top of epithelium and is connected with epithelium;Described control-rod is arranged on the lower section of epithelium and is connected with epithelium; The V-groove is arranged on control-rod, and laterally disposed;Described movable axis is arranged on the inside of V-groove;The motion bar One end is connected with movable axis, and the other end is connected with sealing valve port pad.By the opening and closing of transmission mechanism control air intake valve, When relatively low air pressure below epithelium or super-pressure can be ensured, air intake valve can be controlled by the transmission mechanism It is automatically switched off, improves and use the security of gas pipeline.
As a further improvement on the present invention, one end of air inlet, the sealing valve port pad are pointed in the tip of described V-groove It is arranged on valve port passage outside;Or one end of gas outlet is pointed at the tip of described V-groove, the sealing valve port pad is arranged on valve port The inside of passage.Movement by movable axis in V-groove can be so that the sealing valve port pad of control motion bar one end is de- with valve port From or be close to.
As a further improvement on the present invention, the transmission mechanism also includes clamping part;The clamping part includes convex Platform, at least two thimbles and the resistance spring being connected with one end of thimble respectively;The boss is fixedly installed on button spindle; One end of the thimble is fixedly connected on bonnet madial wall by resistance spring respectively, the other end respectively with the outside of button spindle Wall is in contact.By the structure using this spring and thimble, it is not necessary to use Magnetic Control, it is better able to ensure closing air inlet Stability during valve.
As a further improvement on the present invention, the transmission mechanism also includes control unit, and the control unit includes carrying button, Back-moving spring and interior fastener;It is described to carry button excessively interior fastener is connected with the both sides of button spindle all;In the back-moving spring is set in The periphery of fastener, one end is connected with button spindle, and the other end is connected with button is carried.To more stably can be carried by the interior fastener Button is connected with button spindle, can will be carried under button is acted on without external force by back-moving spring and automatically reset.
As a further improvement on the present invention, the connection member also includes pad and nut;Described pad is connected to The top of epithelium;Described button spindle is fixed on the top of pad by nut.By pad and nut can preferably by by Button bar is closely connected with epithelium.
Valve port unit described as a further improvement on the present invention also includes opening and closing spring and spring card;Described bullet Spring card is fixedly installed on motion bar, and the keying spring is set on motion bar and is connected with spring card.By opening and closing Spring can control even closer at air intake valve sealing valve port pad when closed and valve port being affixed.
As a further improvement on the present invention, described main valve includes outlet valve pad, small magnet, hand-operated valve pipe and big magnetic Iron;One end of described small magnet is connected with outlet valve pad;The hand-operated valve pipe is arranged on the outer wall of gas outlet;Described big magnetic Iron is arranged on hand-operated valve pipe, and can be along hand-operated valve pipe slidably.Can control outlet valve pad and go out by the big magnet of movement Gas port is separated or is mutually close to.
As a further improvement on the present invention, described main valve also includes a magnet frame;Described small magnet is arranged on Magnet frame the inside;The magnet frame one end is connected with outlet valve pad.Preferably can be connected with outlet valve pad by magnet frame.
As a further improvement on the present invention, described main valve also includes spring top flat and power assistant spring;The spring top Piece is fixed on valve seat;One end of the power assistant spring is connected with magnet frame, and the other end is connected with spring top flat.Helped by this Power spring contributes to when main valve is closed, and outlet valve pad is closely affixed with gas outlet.
As a further improvement on the present invention, the main valve also includes the first armature and the second armature;First armature is pacified It is connected mounted in one end of hand-operated valve pipe and with bonnet, the second armature is arranged on the other end of hand-operated valve pipe;Described big magnet In the middle of the first armature and the second armature.Contribute to fix big magnet by armature.
In order to more fully understand and implement, the invention will now be described in detail with reference to the accompanying drawings.
Brief description of the drawings
Fig. 1 is prior art construction profile.
Fig. 2 is the section of structure of gas valve of the present invention.
Fig. 3 is the structure chart for protecting valve.
Fig. 4 is the structure chart of main valve
Fig. 5 is the normally-open structural representation of burnt gas valve.
Fig. 6 is the structural representation of burnt gas valve normal switching-off.
Fig. 7 is gas valve internal low-voltage or the structural representation without pressure.
Fig. 8 is the structural representation of gas valve inside super-pressure.
Specific embodiment
Fig. 2 is referred to, it is the section of structure of gas valve of the present invention.Gas valve of the invention includes valve body 1, protects valve Door 2 and main valve 3.Described valve body 1 includes valve seat 11 and bonnet 12, and the wherein bonnet 12 is arranged on the top of valve seat 11, institute The bonnet 12 stated is connected with the make-up of valve seat 11.The two ends of described valve seat 11 are provided with air inlet 111 and gas outlet 112, air inlet It is valve port passage between 111 and gas outlet 112.Described protection valve 2 is arranged between air inlet 111 and gas outlet 112, and The switch of the air inlet 111 of control valve seat 11, main valve 3 is arranged between protection valve 2 and gas outlet 112, and control valve seat The switch of 11 gas outlet 112.
Fig. 3 is referred to, it is the structure chart for protecting valve.Described protection valve 2 includes transmission mechanism 22 and valve port list Unit 21.The transmission mechanism 22 drives valve port unit 21 to control the open and-shut mode of valve port.The transmission mechanism 22 includes control unit 221, button spindle 222, clamping part 223, connection member 224 and control-rod 225;Described button spindle 222 passes through connection member 224 are connected with control-rod 225;Control unit 221 is arranged on the top of button spindle 222, and clamping part 223 sets the inner side of bonnet 12 And be connected with button spindle 222.
Described control unit 221 includes back-moving spring 2212, carries button 2211, interior fastener 2213.It is described to carry button logical 2211 It is connected with the outside of button spindle 222 by interior fastener 2213;The back-moving spring is set in the periphery of interior fastener 222, and its One end is connected with button spindle 222, and the other end is connected with button 2211 is carried.
Described clamping part includes boss 2233, at least two thimbles 2232 and one end with thimble 2232 is connected respectively The resistance spring 2231 for connecing;The boss 2233 is fixedly installed on button spindle 222;One end of the thimble 2232 passes through respectively Resistance spring 2231 is fixedly connected on the madial wall of bonnet 12, and lateral wall of the other end respectively with button spindle 222 is mutually in close contact. In the present embodiment, thimble 2232 is two.
Described connection member 224 includes nut 2242, epithelium 2243, pad 2241.Described control-rod 225 is arranged on The lower section of epithelium 2243 is simultaneously connected thereto;Described pad 2241 is connected to the top of epithelium 2243;Described button spindle 222 leads to Cross the top that nut 2242 is fixed on pad 2241.
Described control-rod 225 is provided with movable axis 2252, V-groove 2251.The V-groove 2251 is arranged on control-rod 225 On, and it is laterally disposed, one end of air inlet 111 is pointed at the tip of the V-groove 2251;Described movable axis 2252 is arranged on V-type The inside of groove 2251, can the freely activity in V-groove 2251.
Described valve port unit 21 includes sealing valve port pad 211, and motion bar 215 opens and closes spring 213, spring card 214. Described sealing valve port pad 211 is connected to one end of motion bar 215, the other end of the motion bar 215 and the work of transmission mechanism 22 Moving axis 2252 is connected.Described spring card 214 is fixedly installed on motion bar 215, and the keying spring 213 is set in activity It is connected on bar 215 and with spring card 214.The other end of the keying spring 213 is fixedly mounted on valve seat 11.By activity Axle 2252 in V-groove 2251 activity so that drive motion bar carry out on motion bar 215 keying spring apply pressure.It is logical The effect of the keying spring 213 is crossed, control sealing valve port pad 211 is separated or be close to valve port 212.
Fig. 4 is referred to, it is the structure chart of main valve.Described main valve 3 include outlet valve pad 307, small magnet 308, Power assistant spring 310, spring top flat 301, hand-operated valve pipe 304, magnet frame 309, the first armature 302, the armature of big magnet 303 and second 305;Described small magnet 308 is arranged on the inside of magnet frame 309.The magnet frame one end is connected to outlet valve pad 307, and the other end leads to Power assistant spring 310 is crossed to be connected with spring top flat 301.The spring top flat 301 is fixed on valve seat 11.In the outer wall of gas outlet 112 It is provided with hand-operated valve pipe 304;First armature 302 is arranged on one end of hand-operated valve pipe 304 and is connected with bonnet 12, the second armature 305 other ends for being arranged on hand-operated valve pipe 304.Described big magnet 303 is arranged in the first armature 302 and the second armature 305 Between, and can be moved along hand-operated valve pipe 304.
Please refer to Fig. 5 and Fig. 6, wherein, Fig. 5 is the normally-open state diagram of valve, and Fig. 6 is valve normal switching-off State diagram.The normally-open course of work of the burnt gas valve is:When button 2211 is lifted, button spindle is driven by carrying button 2211 222, epithelium 2243 is driven by button spindle 222, move up.Due to epithelium 2243 drive control-rod 225 on V-groove 2251 to Upper movement so that movable axis 2252 moves to the V-type tip of V-groove 2251, spring 213 is opened and closed by 215 times compressions of motion bar, So that sealing valve port pad 211 and the valve port 212 of the dynamic left end of motion bar 215 are separated, now valve port 212 is turned on.
Lift after button 2211 decontrols, due to back-moving spring 2212 in the presence of, can make to carry button 2211 and reset.Now, then With the big magnet 303 of hand propelled depart from the first armature 302 and along the adhesive of 304 and second armature of hand-operated valve pipe 305 after, big magnet 303 with small magnet 308 in the presence of homopolarity mutually repels, the strength compression power assistant spring of magnet frame 309 is driven by small magnet 308 310, now outlet valve pad 307 and sealing plane 306 separate, gas outlet 112 turns on.
The course of work of shutoff valve door under normal operating conditions:When pipeline is in normal work, when closing valve, First button spindle 222 is pressed, drives epithelium 2243 to move down, drive control-rod 225 to move down by epithelium 2243.Now, V The movable axis 2252 of the inside of type groove 2251 can move to the top of V-groove 2251.Motion bar 215 is driven to the right by movable axis 2252 It is mobile, now by the effect of keying spring 213 so that sealing valve port pad 211 is dead with the closing patch of valve port 212.Afterwards, by outlet Big magnet 303 at mouthful moves to left, due to the mutually repulsion with small magnet 308, the phase right of small magnet 308 can be promoted to move, Outlet valve pad 307 is mutually adjacent to sealing plane 306, gas outlet is closed.
Fig. 7 is referred to, it is gas valve internal low-voltage or the structural representation without pressure.When the air pressure mistake of the lower section of epithelium 2243 When low, when being less than the pressure of the top of epithelium 2243 by the pressure that the lower section of epithelium 2243 is born, epithelium 2243 can drive control Bar 225 is moved down, and the movable axis 2252 of the inside of V-groove 2251 can move to the top of V-groove 2251;Now, bullet is being opened and closed In the presence of the elastic force of spring 213, the sealing valve port pad 211 and valve port on the strength promotion motion bar 215 of spring 213 one end are opened and closed 212 closing notes are dead, so as to cut off source of the gas.
It is automatically switched off due to low-pressure state in valve, and when pipeline recovered normal supply, reopens valve Men Shi, can lift button 2211, and button spindle 222 is driven by carrying button 2211, and epithelium 2243 is driven by button spindle 222, move upwards It is dynamic.Because epithelium 2243 drives the V-groove 2251 on control-rod 225 to move up so that movable axis 2252 moves to V-groove 2251 V-type tip, spring 213 is opened and closed by 215 times compressions of motion bar, so that the sealing valve port of the dynamic left end of motion bar 215 Pad 211 is separated with valve port 212, and now valve is opening.
Fig. 8 is referred to, it is the structural representation of gas valve inside super-pressure.When manifold pressure is too high, due to skin The pressure that the lower section of film 2243 is born is excessive, can move up, and drives button spindle 222 to move up, now on button spindle 222 Boss 2233 can be pushed up holds thimble 2232, and boss 2233 can move to the top of thimble 2232, and now thimble 2232 can be in resistance bullet In the presence of spring 2231, the lower section of boss 2233 is blocked.At the same time, the V-groove 2251 of control-rod 225 can be moved up, from And the movable axis 2252 in V-groove 2251 is moved down, now open and close the strength of spring 213 and promote the valve port of the one end of motion bar 215 close Packing 211 is dead with the closing note of valve port 212, so as to cut off source of the gas.
When valve is in high pressure and is automatically switched off, when pipeline recovered normal supply, button can be pressed Bar 222, the boss 2233 on the button spindle 222 can push up the thimble 2232 on the both sides for holding the lower section of boss 2233, move down.Pass through Button spindle 222 is pressed downward epithelium 2243, drives control-rod 225 to move down by epithelium 2243;Now, movable axis 2252 is in V-type The tip of the V-groove 2251 can be moved in groove 2251.Spring 213 is opened and closed so as to drive motion bar 215 to compress, and makes motion bar The sealing valve port pad 211 of 215 left ends and valve port 212 are separated, and now, valve is opening.
The present invention can have various deformation implementation method, such as by the tip of V-groove 2251 set on control-rod 225 One end of gas outlet 112 is pointed to, the sealing valve port pad 211 is arranged on the inside of valve port passage.
The invention is not limited in above-mentioned implementation method, if not departing from the present invention to various changes of the invention or deformation Spirit and scope, if these are changed and within the scope of deformation belongs to claim of the invention and equivalent technologies, then this hair It is bright to be also intended to comprising these changes and deform.

Claims (8)

1. a kind of gas valve, including valve body, protects valve and main valve;The valve body includes bonnet and valve seat, and the bonnet is set In the top of valve seat, the bonnet is connected with valve seat make-up;The valve seat is respectively arranged at two ends with air inlet and gas outlet, air inlet It is valve port passage between gas outlet;Described protection valve is arranged between air inlet and gas outlet, and application valve body enters The switch of gas port, main valve be arranged on protection valve and gas outlet between, and the gas outlet of application valve body switch;
It is characterized in that:The protection valve includes valve port unit and transmission mechanism;Wherein, the valve port unit includes that valve port is close Packing and motion bar;The transmission mechanism includes connection member, button spindle and control-rod;Described connection member includes epithelium; Described control-rod is provided with movable axis, V-groove;
The sealing valve port pad is arranged on one end of valve port pipeline and is connected with air inlet;The button spindle is arranged on the upper of epithelium Fang Bingyu epitheliums are connected;Described control-rod is arranged on the lower section of epithelium and is connected with epithelium;The V-groove is arranged on control-rod On, and it is laterally disposed;Described movable axis is arranged on the inside of V-groove;One end of the motion bar is connected with movable axis, another End is connected with sealing valve port pad;
The transmission mechanism also includes clamping part;The clamping part include boss, at least two thimbles and respectively with thimble The resistance spring that is connected of one end;The boss is fixedly installed on button spindle;One end of the thimble passes through resistance respectively Spring is fixedly connected on bonnet madial wall, and the other end is in contact with the lateral wall of button spindle respectively
One end of air inlet is pointed at the tip of described V-groove, and the sealing valve port pad is arranged on valve port passage outside;Or it is described One end of gas outlet is pointed at the tip of V-groove, and the sealing valve port pad is arranged on the inside of valve port passage.
2. gas valve according to claim 1, it is characterised in that:The transmission mechanism also includes control unit, the control Part includes carrying button, back-moving spring and interior fastener;It is described to carry button excessively interior fastener is connected with the both sides of button spindle all;The reset Spring is set in the periphery of interior fastener, and one end is connected with button spindle, and the other end is connected with button is carried.
3. gas valve according to claim 1, it is characterised in that:The connection member also includes pad and nut;It is described Pad be connected to the top of epithelium;Described button spindle is fixed on the top of pad by nut.
4. gas valve according to claim 1, it is characterised in that:Described valve port unit also includes opening and closing spring and spring Card;Described spring card is fixedly installed on motion bar, the keying spring be set on motion bar and with spring card phase Connection.
5. gas valve according to claim 1, it is characterised in that:Described main valve includes outlet valve pad, small magnet, hand Dynamic valve pipe and big magnet;One end of described small magnet is connected with outlet valve pad;The hand-operated valve pipe is arranged on gas outlet outer wall On;Described big magnet is arranged on hand-operated valve pipe, and can be along hand-operated valve pipe slidably.
6. gas valve according to claim 5, it is characterised in that:Described main valve also includes a magnet frame;Described Small magnet is arranged on magnet frame the inside;The magnet frame one end is connected with outlet valve pad.
7. the gas valve according to claim 5 or 6, it is characterised in that:Described main valve also includes spring top flat and helps Power spring;The spring top flat is fixed on valve seat;One end of the power assistant spring is connected with magnet frame, the other end and spring top flat It is connected.
8. gas valve according to claim 7, it is characterised in that:Described main valve also includes the first armature and the second rank Iron;First armature is arranged on one end of hand-operated valve pipe and is connected with bonnet, and the second armature is arranged on the other end of hand-operated valve pipe; Described big magnet is arranged in the middle of the first armature and the second armature.
CN201310445063.3A 2013-09-26 2013-09-26 A kind of gas valve Active CN104514902B (en)

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Application Number Priority Date Filing Date Title
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CN104514902A CN104514902A (en) 2015-04-15
CN104514902B true CN104514902B (en) 2017-05-31

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CN106763954A (en) * 2017-02-26 2017-05-31 台州中燃机械有限公司 A kind of gas pipeline self-closing valve
CN108413091A (en) * 2018-04-28 2018-08-17 苏州福特曼机器人系统有限公司 Gas pipeline self-closing valve
CN110792814B (en) * 2018-08-02 2021-04-30 陈石明 Gas safety self-closing valve
CN111006046B (en) * 2019-12-06 2021-07-02 成都特恩达燃气设备有限公司 Gear rack transmission assembly and gas self-closing valve

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