CN209705404U - A kind of gas valve - Google Patents

Abstract

The utility model discloses a kind of gas valves, including valve body, control switch, inlet end and outlet side, it further include sealing device and detection device, the sealing device includes the snap ring for being set in pipeline Yu input end joint, the inner wall of the snap ring is equipped with annular groove, the through-hole being connected with annular groove is equipped at the top of the upper ring, the detection device includes the fixed fixing seat being connected in a ring groove and with through-hole, the driving assembly that is located in fixing seat and it is located at the staving that in through-hole and open end is arranged towards driving assembly, the fixing seat bottom is equipped with the convex block for preventing driving assembly from falling, aqueous solution is equipped in the staving, the open end of the staving is equipped with the film for sealing, the staving is transparent.Whether the utility model structure is simple, good seal performance, have the function of alarm function and leak with detection valve and pipeline joint.

Description

A kind of gas valve

Technical field

The utility model relates to valve technology fields, and in particular to a kind of gas valve.

Background technique

Gas valve is a kind of safe corollary apparatus of novel gas pipeline engineering, for being truncated, connecting, adjust in pipeline Gas.Suitable on the various gas medium pipeline such as town gas, liquefied petroleum, natural gas, oxygen.Gas valve and pipeline Joint be easy to cause dielectric leakage, and dielectric leakage can bring security risk to resident, and serious meeting threat to life is safe, thus Gas valve and the sealing performance of pipeline joint will centainly be got well.Existing gas valve and the sealing performance of pipeline joint are general, And do not have the function of detection leakage, and it can not be prevented and be warned user, it is big so as to cause risk.

Utility model content

Based on the above issues, the utility model aim is to provide a kind of simple structure, good seal performance, has warning function Can and with detection valve and pipeline joint whether the gas valve of leakage function.

In view of the above problems, providing following technical solution: a kind of gas valve, including valve body, control switch, inlet end with And outlet side, it further include sealing device and detection device, the sealing device includes being set in pipeline and input end joint Snap ring, the inner wall of the snap ring is equipped with annular groove, and the snap ring includes with valve body in the upper ring and lower ring being movably hinged, institute The joint for stating ring and lower ring is equipped with sealing strip, and the upper ring is affixed with lower ring end face and is adapted to sealing, and is bolted It is fixed, be equipped with the through-hole being connected with annular groove at the top of the upper ring, the detection device include it is fixed in a ring groove and with It fixing seat that through-hole is connected, the driving assembly being located in fixing seat and is located in through-hole and open end is set towards driving assembly The staving set, the fixing seat bottom are equipped with the convex block for preventing driving assembly from falling, the relatively fixed seat of the driving component Slidably, the driving component includes the piston for being adapted sealing with fixing seat, the adjustable pipe being located on piston, is set in activity Instant color lump on pipe and the puncturing head being fixed at the top of adjustable pipe are equipped with aqueous solution in the staving, and the staving is opened Mouth end is equipped with the film for sealing, and the staving is transparent.

In above structure, pipeline is connected with input end, by flipping outward upper ring and lower ring, so that upper ring and lower ring end Face is affixed, and is fastened by bolts, the sealing so that snap ring is connected with valve body, pipeline.By be arranged snap ring can increase pipeline with into Bonding strength between mouth end, to improve the leakproofness between pipeline and input end.When medium from valve body import end and is managed When road joint leaks, medium enters in annular groove, when medium in annular groove is full of to certain pressure, pushes piston direction Staving moves, and the pressure medium in annular groove constantly increases, and piston upward sliding to puncturing head is pushed to puncture film, so that water Solution flows into fixing seat inner cavity and is reacted with instant color lump, and pressure medium constantly pushes piston upward sliding, until piston top End is butted on port end, after instant color lump dissolves, so that aqueous solution discoloration by transparent staving to warn user media to have Leakage, increases safety.The color of aqueous solution in staving is observed when user can be switched by switch control, thus Judge whether medium leaks.Cooperated by aqueous solution and instant color lump, the utility model enabled to avoid using electrical equipment, The hair for reacting and causing safety accident is generated with the medium of leakage to save the use of electric energy and avoid electrical equipment It is raw, increase the safety of the utility model.By be arranged sealing strip can increase the leakproofness between upper ring and lower ring with And bonding strength increases the reliability of the utility model so as to avoid medium from annular groove internal leakage.

The utility model is further arranged to, and the drainage lumens being connected with adjustable pipe are equipped with inside the puncturing head, described The outer wall of puncturing head is equipped with the conduction hole being connected with drainage lumens, and the outer circle wall of the activity bottom of the tube is equipped with and fixation The apopore that seat inner cavity is connected.

In above structure, when puncturing head punctures film, aqueous solution can enter drainage lumens by conduction hole, hence into In adjustable pipe, fixing seat inner cavity is flowed out to by apopore and is reacted with the generation of instant color lump.Pass through setting conduction hole and drainage lumens When being able to solve puncturing head and puncturing film, the problem of film is affixed with puncturing head, and water-soluble liquid stream is not gone down, to increase this reality With novel reliability.

The utility model is further arranged to, and in coniform, the diameter of the puncturing head bottom is greater than lives the puncturing head The outer diameter of dynamic pipe.

Using the above structure, film can be punctured completely in puncturing head, into staving in when, aqueous solution is quickly from cut Place's outflow improves efficiency, allows user that can know medium earlier so that aqueous solution is quickly reacted with the generation of instant color lump It has been leaked that, avoid the more of dielectric leakage, and generated security risk, to increase the reliability and safety of the utility model Property.

The utility model is further arranged to, and the activity bottom of the tube is arranged with the filter plate for placing instant color lump, institute Filter plate is stated to be located above apopore.

, can be convenient for fixed instant color lump by setting filter plate in above structure, and enable to instant color lump and piston Between there are gaps so that when aqueous solution is flowed out out of apopore, be accumulated to a certain amount of ability and reacted with the generation of instant color lump, It can accelerate reaction speed, improve the reaction efficiency and reliability of the utility model.

The utility model is further arranged to, and the staving top is equipped with air hole, and the staving outer cover is equipped with and card The air bag that ring is mutually fixed.

In above structure, when enabling to the generation of instant color lump and aqueous solution to react by the way that air bag is arranged, the gas that releases Body is discharged by air hole to air bag, so that air bag expands, can play more obvious warning function, user media is told to have Leakage, accelerates the speed that user knows, so as to allow user's handling earlier, avoids the more of dielectric leakage and produces Raw security risk, improves the safety and reliability of the utility model.By be arranged air hole can prevent instant color lump with When aqueous solution generates reaction, the gas released expands by staving and staving is caused to damage, to extend the use longevity of staving Life, increases the safety and reliability of the utility model.

The utility model is further arranged to, and is arranged with the pressure ring matched with snap ring on the air bag, the pressure ring with The outer rim of air bag end is sealed by glue.

Using the above structure, the bonding strength between air bag and upper ring can be increased, to float after preventing air bag to inflate It walks, improves the reliability of the utility model.

The utility model is further arranged to, and is equipped in the upper ring for being connected to fixing seat inner cavity and air bag inner cavity Gas channel is crossed, the piston base is equipped with the ladder matched with gas channel excessively.

In above structure, when piston, which is pushed to top by pressure medium, to be affixed with port end, ladder on piston with Cross that gas channel is corresponding, the medium of leakage passed through gas channel and enters in air bag, so that air bag expands, can be avoided in annular groove Pressure is excessive and snap ring can not mutually be sealed with valve body and pipeline, causes to cause safe thing outside dielectric leakage to snap ring Therefore generation, to improve the safety and reliability of the utility model.The air bag of expansion can play more obvious warning Effect, tells user media to have leakage, accelerates the speed that user knows, so as to allow that user locating earlier Reason, avoids the more of dielectric leakage and generates security risk.

The utility model is further arranged to, and is located above ladder on the piston and is arranged with sealing ring.

Using the above structure, the leakproofness between piston and fixing seat inner cavity can be increased, so as to produce convenient for medium Raw pressure pushes the relatively fixed seat of piston to slide up and down, and increases the reliability of the utility model.

The utility model has the beneficial effects that compare existing gas valve, the utility model structure is simple, good seal performance, Have the function of alarm function and whether is leaked with detection valve with pipeline joint.It is produced by aqueous solution and instant color lump Raw reaction is changed colour to warn user media to leak, and be can be avoided the media contact of electrical equipment and leakage and is led to safe thing Therefore generation, thus the not only safety of the utility model but also reliable.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is the structural schematic diagram in Fig. 1 at A.

Fig. 3 is the structural schematic diagram of puncturing head and adjustable pipe in the utility model.

Fig. 4 is the structure sectional view of the utility model side view.

Figure label meaning: 1- valve body；2- control switch；11- inlet end；The outlet side 12-；3- pipeline；4- snap ring；41- Annular groove；The upper ring of 42-；421- sealing strip；422- through-hole；423- crosses gas channel；Ring under 43-；5- detection device；51- fixing seat； 52- driving assembly；521- piston；5211- ladder；5212- sealing ring；522- adjustable pipe；5221- apopore；The instant color of 523- Block；524- puncturing head；5241- drainage lumens；5242- conduction hole；53- staving；531- film；6- air bag；7- pressure ring.

Specific embodiment

With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.

A kind of gas valve as shown in Figures 1 to 4, including valve body, control switch 2, inlet end 11 and outlet side 12, also Including sealing device and detection device 5, the sealing device includes the snap ring 4 for being set in pipeline 3 Yu input end joint, institute The inner wall for stating snap ring 4 is equipped with annular groove 41, and the snap ring 4 includes with valve body in the upper ring 42 and lower ring 43 being movably hinged, institute The joint for stating ring 42 and lower ring 43 is equipped with sealing strip 421, and the upper ring 42 is affixed with lower 43 end face of ring and is adapted to sealing, and logical It crosses and is bolted fixation, the through-hole 422 being connected with annular groove 41 is equipped at the top of the upper ring 42, the detection device 5 includes It is fixed on the fixing seat 51 being connected in annular groove 41 and with through-hole 422, the driving assembly 52 being located in fixing seat 51 and sets In through-hole 422 and staving 53 that open end is arranged towards driving assembly 52,51 bottom of fixing seat are equipped with for preventing from driving The convex block that dynamic component 52 is fallen, slidably, the driving component 52 includes and fixation the relatively fixed seat 51 of the driving component 52 Seat 51 is adapted the piston 521 of sealing, the adjustable pipe 522 being located on piston 521, the instant color lump being set in adjustable pipe 522 523 and it is fixed on the puncturing head 524 at the top of adjustable pipe 522, is equipped with aqueous solution, the opening of the staving 53 in the staving 53 End is equipped with the film 531 for sealing, and the staving 53 is transparent.

In above structure, pipeline 3 is connected with input end, by flipping outward upper ring 42 and lower ring 43, so that upper ring 42 It is affixed, is fastened by bolts with lower 43 end face of ring, the sealing so that snap ring 4 is connected with valve body, pipeline 3.It can by setting snap ring 4 Increase the bonding strength between pipeline 3 and input end, to improve the leakproofness between pipeline 3 and input end.When medium from When valve body import end and 3 joint of pipeline leak, medium enters in annular groove 41, and the medium in annular groove 41 is full of to certain When pressure, piston 521 is pushed to move towards staving 53, the pressure medium in annular groove 41 constantly increases, and push piston 521 to On slide into puncturing head 524 and puncture film 531 so that aqueous solution flows into 51 inner cavity of fixing seat and is reacted with instant color lump 523, Pressure medium constantly pushes 521 upward sliding of piston, until 521 top of piston is butted on port end, instant color lump 523 dissolves Afterwards, so that aqueous solution discoloration increases safety to warn user media to have leakage by transparent staving 53.User can By observing when switch control switch 2 color of aqueous solution in staving 53, to judge whether medium leaks.Pass through water Solution and instant color lump 523 cooperate, and the utility model is enabled to avoid using electrical equipment, to save the use of electric energy And avoid electrical equipment and generate the generation for reacting and causing safety accident with the medium of leakage, increase the utility model Safety.Leakproofness and bonding strength between upper ring 42 and lower ring 43 can be increased by the way that sealing strip 421 is arranged, thus Medium is avoided from 41 internal leakage of annular groove, increases the reliability of the utility model.The instant color lump 523 can use Effervescent tablet.

In the present embodiment, the drainage lumens 5241 being connected with adjustable pipe 522 are equipped with inside the puncturing head 524, it is described to wear The outer wall of tartar 524 is equipped with the conduction hole 5242 being connected with drainage lumens 5241, the outer circle wall of 522 bottom of adjustable pipe It is equipped with the apopore 5221 being connected with 51 inner cavity of fixing seat.

In above structure, when puncturing head 524 punctures film 531, aqueous solution can be entered by conduction hole 5242 to be drained Chamber 5241 flows out to 51 inner cavity of fixing seat by apopore 5221 and instant color lump 523 generates hence into adjustable pipe 522 Reaction.When being able to solve puncturing head 524 by setting conduction hole 5242 and drainage lumens 5241 and puncture film 531, film 531 with wear The problem of tartar 524 is affixed, and water-soluble liquid stream is not gone down, to increase the reliability of the utility model.

In the present embodiment, for the puncturing head 524 in coniform, the diameter of 524 bottom of puncturing head is greater than adjustable pipe 522 Outer diameter.

Using the above structure, can puncturing head 524 completely puncture film 531, into staving 53 in when, aqueous solution is quick Slave cut at flow out so that aqueous solution quickly with instant color lump 523 generation react, improve efficiency, allow user can be more Early knows that medium has leaked, and avoids the more of dielectric leakage, and generates security risk, to increase the utility model Reliability and safety.

In the present embodiment, 522 bottom of adjustable pipe is arranged with the filter plate for placing instant color lump 523, the filter plate Above apopore 5221.

, can be convenient for fixed instant color lump 523 by setting filter plate in above structure, and enable to instant color lump 523 There are gaps between piston 521 so that when aqueous solution is flowed out out of apopore 5221, be accumulated to a certain amount of ability with it is instant Color lump 523 generates reaction, can accelerate reaction speed, improve the reaction efficiency and reliability of the utility model.

In the present embodiment, 53 top of staving is equipped with air hole, and 53 outer cover of staving is equipped with and fixes with 4 phase of snap ring Air bag 6.

In above structure, when enabling to instant color lump 523 to react with aqueous solution generation by the way that air bag 6 is arranged, release Gas be discharged by air hole to air bag 6 so that air bag 6 expand, more obvious warning function can be played, tell user Medium has leakage, accelerates the speed that user knows, so as to allow user's handling earlier, avoids dielectric leakage more It generates security risk more, improves the safety and reliability of the utility model.It can be prevented by setting air hole instant When color lump 523 is reacted with aqueous solution generation, the gas released expands by staving 53 and staving 53 is caused to damage, to extend The service life of staving 53 increases the safety and reliability of the utility model.

In the present embodiment, the pressure ring 7 matched with snap ring 4, the pressure ring 7 and 6 end of air bag are arranged on the air bag 6 Outer rim be sealed by glue.

Using the above structure, the bonding strength between air bag 6 and upper ring 42 can be increased, so that air bag 6 be prevented to inflate After float, improve the reliability of the utility model.

In the present embodiment, it is equipped with the gas of crossing for being connected to 6 inner cavity of 51 inner cavity of fixing seat and air bag in the upper ring 42 and leads to Road 423,521 bottom of piston are equipped with the ladder 5211 matched with gas channel 423 excessively.

In above structure, when piston 521, which is pushed to top by pressure medium, to be affixed with port end, on piston 521 Ladder 5211 is corresponding with gas channel 423 is crossed, and the medium of leakage passed through gas channel 423 and enters in air bag 6, so that air bag 6 is swollen Swollen, it is excessive and snap ring 4 can not be sealed with valve body and 3 phase of pipeline to can be avoided pressure in annular groove 41, and medium be caused to be let out The generation for causing safety accident outside leakage to snap ring 4, to improve the safety and reliability of the utility model.Expansion Air bag 6 can play more obvious warning function, and user media is told to have leakage, accelerate the speed that user knows, so as to It enough allows that user handling earlier, avoids the more of dielectric leakage and generate security risk.

It is located above ladder 5211 in the present embodiment, on the piston 521 and is arranged with sealing ring 5212.

Using the above structure, the leakproofness between 51 inner cavity of piston 521 and fixing seat can be increased, so as to convenient for Jie The pressure that matter generates pushes the relatively fixed seat 51 of piston 521 to slide up and down, and increases the reliability of the utility model.

The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art For art personnel, without deviating from the technical principle of the utility model, several improvements and modifications, above-mentioned vacation can also be made If these improvements and modifications also should be regarded as the protection scope of the utility model.

Claims (8)

1. a kind of gas valve, including valve body, control switch, inlet end and outlet side, it is characterised in that: further include sealing device And detection device, the sealing device include the snap ring for being set in pipeline Yu input end joint, on the inner wall of the snap ring Equipped with annular groove, the snap ring includes with valve body in the upper ring and lower ring that are movably hinged, and the joint of the upper ring and lower ring is set Have sealing strip, the upper ring is affixed with lower ring end face and is adapted to sealing, and fixation is bolted, be equipped at the top of the upper ring with The through-hole that annular groove is connected, the detection device include the fixed fixing seat being connected in a ring groove and with through-hole, are located at Driving assembly in fixing seat and it is located at the staving that in through-hole and open end is arranged towards driving assembly, the fixing seat bottom Equipped with the convex block for preventing driving assembly from falling, slidably, the driving component includes the relatively fixed seat of the driving component The piston of sealing, the adjustable pipe being located on piston, instant color lump and the fixation being set in adjustable pipe are adapted with fixing seat Puncturing head at the top of adjustable pipe, the staving is interior to be equipped with aqueous solution, and the open end of the staving is equipped with for the thin of sealing Film, the staving are transparent.

2. a kind of gas valve according to claim 1, it is characterised in that: be equipped with inside the puncturing head and be connected with adjustable pipe Logical drainage lumens, the outer wall of the puncturing head are equipped with the conduction hole being connected with drainage lumens, the outer circle of the activity bottom of the tube Peripheral wall is equipped with the apopore being connected with fixing seat inner cavity.

3. a kind of gas valve according to claim 2, it is characterised in that: the puncturing head is in coniform, the puncturing head The diameter of bottom is greater than the outer diameter of adjustable pipe.

4. a kind of gas valve according to claim 1, it is characterised in that: the activity bottom of the tube is arranged with for placing speed The filter plate of molten color lump, the filter plate are located above apopore.

5. a kind of gas valve according to claim 1, it is characterised in that: the staving top is equipped with air hole, the bucket The air bag mutually fixed with snap ring is arranged with outside body.

6. a kind of gas valve according to claim 5, it is characterised in that: be arranged on the air bag and matched with snap ring Pressure ring, the pressure ring and the outer rim of air bag end are sealed by glue.

7. a kind of gas valve according to claim 1, it is characterised in that: be equipped in the upper ring for being connected in fixing seat The gas channel excessively of chamber and air bag inner cavity, the piston base are equipped with the ladder matched with gas channel excessively.

8. a kind of gas valve according to claim 7, it is characterised in that: be arranged with above ladder on the piston close Seal.