CN208634453U - A kind of pipe gas self-closing valve - Google Patents
A kind of pipe gas self-closing valve Download PDFInfo
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- CN208634453U CN208634453U CN201821284150.XU CN201821284150U CN208634453U CN 208634453 U CN208634453 U CN 208634453U CN 201821284150 U CN201821284150 U CN 201821284150U CN 208634453 U CN208634453 U CN 208634453U
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- valve rod
- valve
- self
- closing valve
- pipe gas
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Abstract
The utility model provides a kind of pipe gas self-closing valve, belongs to gas safety device field.The pipe gas self-closing valve is mounted with spring on its spool, spool is slided up and down under gaseous-pressure effect along valve stem sleeve in elastic force, thus have the function of being automatically closed, further, the spool also uses two-part stem design, connects the first valve rod of separation with the second valve rod by magnetic part, enables the self-closing valve in the case where pipe gas superpressure, first valve rod is automatically separated with the second valve rod, achievees the purpose that close valve.The gas self-closing valve makes it have the defencive function to combustion gas super-pressure, ultralow pressure and decompression situation by the cooperation between spring and magnetic part, can effectively prevent the generation of the fortuitous event of gas leakage, ensure that with gas safety.
Description
Technical field
The utility model relates to gas safety device fields, in particular to a kind of pipe gas self-closing valve.
Background technique
Almost every household is all cooked using natural gas in present city, some families can also natural gas heat supply or burn wash
Bath water.Safety gas and the healthy living of huge numbers of families have closely bound up contact.
Old gas pipeline can usually damage because of sealing device, the breakage of the metal bellows that is connect with gas pipeline or
Person's gas-cooker blocking and other reasons, causes the dangerous situations such as gas leakage, gas pipeline superpressure even gas explosion.Guarantee combustion gas
The safe handling of pipeline, preventing gas leakage are to protect the important measures of common people's security of the lives and property.Gas self-closing valve is a kind of
Indoors low-pressure fuel gas pipe end, the security protection connecting through hose (can also be connected with metal bellows) with burner fill for installation
It sets, gas self-closing valve can incude the pressure of gas pipeline, can be automatically closed in time when gaseous-pressure is unbalance in pipeline.
Prevent accident, manual reset after troubleshooting.
Utility model content
One of the purpose of this utility model is to provide a kind of pipe gas self-closing valve, which can be realized combustion gas mistake
Pressure, low pressure, the automatic closing function in the case of three kinds of superpressure, it is therefore prevented that endangered caused by natural gas leakage.
At least one of in order to solve the above-mentioned technical problem, the utility model provides following technical scheme:
A kind of pipe gas self-closing valve, comprising: self-closing valve base offers inlet channel in self-closing valve base and outlet is logical
Road is provided with service aisle in the intersection of inlet channel and outlet passageway.First valve rod, ventilation seat and sealing flap are respectively mounted
In service aisle；Sealing flap is fixed on ventilation seat；First valve rod is placed in ventilation seat slideably to be connected with ventilation seat
Connect, the first valve rod have opposite first end and second end, when the first valve rod be in initial position, the first end of the first valve rod and
Sealing flap contacts with each other, and when the first valve rod is in operating position, the first end of the first valve rod and the sealing flap are detached from；Bullet
Property part be mounted on ventilation seat and the first valve rod between, when the first valve rod is in initial position, elastic component in the raw, first
When valve rod is in operating position, compressive state is between elasticity；
The pipe gas self-closing valve further includes the second valve rod, magnetic part and flexible sheet, and the second valve rod is located in first end
Side, the second valve rod are connect by magnetic part with the first valve rod magnetism；Flexible sheet is fixedly connected on the second valve rod close to magnetism
Simultaneously service aisle is completely covered in one end of part；The other end of second valve rod is pierced by self-closing valve base.
Further, in the alternative embodiment of the utility model, the first end of the first valve rod is provided with stem head, valve
Magnetic part is fixed on the end face of head, the lateral wall of stem head is in contact with the inner ring of sealing flap.
Further, in the alternative embodiment of the utility model, the lateral wall of stem head offers a circle groove, sealing
In the inner ring insertion groove of flap, sealing flap separably cooperates with groove, and the outer ring for sealing flap is fixed on ventilation seat.
Further, in the alternative embodiment of the utility model, ventilation seat includes vent disc and valve stem sleeve, vent disc
It is fixedly connected on one end of valve stem sleeve；Vent disc outer wall is bonded with the inner wall of service aisle, and valve stem sleeve is set in the first valve rod week
It encloses, the outer ring for sealing flap is fixed on vent disc.
Further, in the alternative embodiment of the utility model, annular groove is offered on vent disc outer wall, in annular
It is provided with elastic seal ring in groove, the inner wall of elastic seal ring and service aisle fits closely together.
Further, in the alternative embodiment of the utility model, it is provided with spring stop in the second end of the first valve rod,
Spring stop and the first valve rod are detachably connected.
Further, in the alternative embodiment of the utility model, elastic component is spring, one and the first valve rod of spring
On spring stop connection, other end with ventilate seat on vent disc be in contact.
Further, in the alternative embodiment of the utility model, valve deck is fixedly connected in self-closing valve base, in valve deck
Portion offers through-hole, and one end of the second valve rod is pierced by this through-hole.
Further, in the alternative embodiment of the utility model, the inner ring of flexible sheet is fixedly connected on the second valve rod
On, the outer ring of flexible sheet is fixedly connected on the junction of valve deck Yu self-closing valve base.
Further, in the alternative embodiment of the utility model, the second valve rod, the first valve rod and ventilation seat are modeling
Expect material.
The beneficial effects of the utility model include: the pipe gas self-closing valve provided by the embodiments of the present invention,
By the way that the spool that can be floated up and down after stress is arranged inside self-closing valve, realize in gas pipeline decompression, under-voltage situation hair
When raw, spool can be automatically closed, and further, which is made of the valve rod of two sections of magnetic connections, the combustion gas superelevation in pipeline
When pressure, this pipe gas self-closing valve also be can be automatically closed, and is guaranteed that the gas in pipeline is not let out and is exposed on the external initiation danger, in pipe
It, being capable of hand-reset after troubleshooting in road.Further, above-mentioned spool uses plastic material, strong with corrosion resistance
Feature can guarantee prolonged use.
Detailed description of the invention
It, below will be to required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
The attached drawing used is briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore not
It should be considered as the restriction to range, for those of ordinary skill in the art, without creative efforts,
It can also be obtained according to these attached drawings other relevant attached drawings.
Fig. 1 is the diagrammatic cross-section for the pipe gas self-closing valve that the utility model preferred embodiment provides；
Fig. 2 is the schematic diagram under the first visual angle of pipe gas self-closing valve that the utility model preferred embodiment provides；
Fig. 3 is the schematic diagram of the first valve rod in pipe gas self-closing valve shown in Fig. 1；
Fig. 4 is the schematic diagram of ventilation seat in pipe gas self-closing valve shown in Fig. 1.
Icon: 100- pipe gas self-closing valve；110- valve deck；120- mentions button；The self-closing valve base of 130-；131- air inlet；
The gas outlet 132-；133- inlet channel；134- outlet passageway；The second valve rod of 141-；142- screw；143- magnetic part；144- is close
Seal flap；145- ventilation seat；1451- vent disc；1452- valve stem sleeve；The first valve rod of 146-；147- spring stop；148- bullet
Spring；149- elastic seal ring；150- flexible sheet；160- tabletting；170- nut.
Specific embodiment
It is practical below in conjunction with this to keep the purposes, technical schemes and advantages of the utility model embodiment clearer
The technical solution in the utility model embodiment is clearly and completely described in attached drawing in novel embodiment, shows
So, described embodiment is a part of embodiment of the utility model, rather than whole embodiments.It is practical based on this
Embodiment in novel, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment is fallen within the protection scope of the utility model.Therefore, the implementation to the utility model provided in the accompanying drawings below
The detailed description of mode is not intended to limit the range of claimed invention, but is merely representative of the utility model
Selected embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative labor
Every other embodiment obtained under the premise of dynamic, fall within the protection scope of the utility model.
In the description of the present invention, it should be understood that term " on ", "lower", "left", "right", "inner", "outside" etc.
The orientation or positional relationship of instruction is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model
It is described with simplifying, rather than the equipment of indication or suggestion meaning or element must have a particular orientation, with specific orientation structure
It makes and operates, therefore should not be understood as limiting the present invention.
In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply relatively important
Property or implicitly indicate the quantity of indicated technical characteristic.The feature for defining " first ", " second " etc. as a result, can be expressed
Or implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or
Two or more, unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, the arts such as term " installation ", " connection ", " fixation "
Language shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be direct phase
Even, can also indirectly connected through an intermediary, the interaction that can be connection or two elements inside two elements is closed
System.For the ordinary skill in the art, it can understand above-mentioned term in the present invention as the case may be
Concrete meaning.
In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or it
"lower" may include that the first and second features directly contact, and also may include that the first and second features are not direct contacts but lead to
Cross the other characterisation contact between them.Moreover, fisrt feature includes above the second feature " above ", " above " and " above "
One feature is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.First is special
Sign is directly below and diagonally below the second feature including fisrt feature under the second feature " below ", " below " and " below ", or only
Indicate that first feature horizontal height is less than second feature.
Shown in referring to Figures 1 and 2, this pipe gas self-closing valve 100 includes self-closing valve base 130 and is fixedly mounted on
Valve deck 110 in self-closing valve base 130 offers inlet channel 133 and outlet passageway 134 in self-closing valve base 130,
The intersection of inlet channel 133 and outlet passageway 134 is provided with a service aisle, and ventilation seat is equipped in the service aisle
145, ventilation seat 145 is made of vent disc 1451 and valve stem sleeve 1452, and vent disc 1451 is fixedly connected on the one of valve stem sleeve 1452
End is installed with the first valve rod 146 at 145 center of ventilation seat, and the first valve rod 146 can slide in ventilation seat 145.First valve
Bar 146 has opposite first end and second end, and the first valve rod 146 exposes first end in 1451 one end of vent disc, in valve stem sleeve
Expose the second end in 1452 one end.It is connected to spring 148 between the first valve rod 146 and ventilation seat 145, spring 148 is set in
Around valve stem sleeve 1452, and one of spring 148 connect with the second end of the first valve rod 146, the other end of spring 148 and logical
The bottom connection of gas disk 1451 touches.
Further, an annular blow vent is defined between the first end and vent disc 1451 of the first valve rod 146,
It seals flap 144 to block on the blow vent, and seals flap 144 and be fixedly mounted on vent disc 1451.In the first valve rod
Magnetic part 143 is fixedly connected in 146 first end, by the magnetic part 143, the first valve rod 146 and the second valve rod 141 are real
Magnetic connection is showed, flexible sheet 150 has been fixedly mounted on one end of the first valve rod 146 in the second valve rod 141, the elasticity
Diaphragm 150 can cover all service aisle, be fixedly connected in the other end of the second valve rod 141 and mention button 120, in valve deck
110 center has a circular open, and the button 120 above-mentioned that mentions is placed in the circular open, and part is exposed at valve deck 110
It is external.
Further, fixing card then spring stop 147 on the second end of the first valve rod 146, the one of spring 148
End is connect with the spring stop 147, and the other end is contacted with 1451 bottom of vent disc on ventilation seat 145, when the first valve rod 146
When sliding in the valve stem sleeve 1452 in seat 145 of ventilating to 110 direction of valve deck, spring 148 is compressed, and puts aside elastic force.In bullet
When spring 148 discharges elastic force, spring 148 drives the first valve rod 146 to slide along valve stem sleeve 1452 to self-closing 130 direction of valve base.
Further, spring stop 147 is arranged around the second end of the second valve rod 141, spring stop 147 is substantially
Annular in shape, one end of spring 148 is to support on the spring stop 147.When the second valve rod 141 is in valve stem sleeve 1452
When sliding, which slides up and down together with the second valve rod 141.
Further, flexible sheet 150 is the one end for being circumferentially positioned at the second valve rod 141, in the upper of flexible sheet 150
Side, the second valve rod 141 bar portion around be arranged tabletting 160, nut 170 is additionally provided with above tabletting 160, by elasticity
150 direction tightening nut 170 of diaphragm compresses tabletting 160, it can flexible sheet 150 is secured firmly to the second valve rod 141
End.
Further, it is provided with stem head on the first end of the first valve rod 146, is fixed with magnetic on the end face of the stem head
Property part 143, the first valve rod 146 connect by 141 magnetism of magnetic part 143 and the second valve rod.Magnetic part 143 shown in fig. 1 is logical
The mode for crossing the fastening of screw 142 is fixed on the stem head of the first valve rod 146, and in other embodiments, magnetic part 143 can also
To be bonded or be connected on the stem head of the first valve rod 146.
Referring to shown in Fig. 3 and Fig. 4, a circle stria, aforementioned seal are offered on the lateral wall of the stem head of the first valve rod 146
The inner ring of flap 144 is separably attached with stria in stria.And the outer ring for sealing flap 144 has been fixed on ventilation
On disk 1451.
Further, annular groove is offered on 1451 lateral wall of vent disc of ventilation seat 145, is set in the annular groove
It is equipped with elastic seal ring 149.Ventilation seat 145 is mounted in service aisle, the inner wall phase of the outer wall and service aisle of seat 145 of ventilating
Mutually fitting when, elastic seal ring 149 is deformed, and tightly be fitted in ventilation seat 145 outer wall and service aisle it is interior
Between wall, guarantee that the gap between ventilation seat 145 and service aisle is blocked completely.
Further, multiple sector opens are offered in the disk of vent disc 1451, combustion gas is by these sectors
Opening leads to outlet pipe from admission line.
In order to improve the service life of the pipe gas self-closing valve 100, the first valve rod 146 above-mentioned, the second valve rod 141
And ventilation seat 145 has been all made of anticorrosive, anti acid alkali performance gas plastics and has been fabricated.
The self-closing process of the pipe gas self-closing valve 100 is as follows: operator mentions button 120 manually, drives the second valve rod
141 and with magnetic the first valve rod 146 connect of the second valve rod 141 along the valve stem sleeve 1452 towards 110 direction of valve deck cunning
Dynamic, the flexible sheet 150 connecting with the second valve rod 141 is pulled to protuberance, seals the stem head of flap 144 and the first valve rod 146
Separation, is mutually communicated between inlet channel 133 and outlet passageway 134；Meanwhile being connected to ventilation seat 145 and first valve rod 146
Spring 148 is compressed, and elastic force increases.
Then, combustion gas enters self-closing valve base 130 from air inlet 131, and arrives at elasticity by ventilation seat 145, blow vent
150 position of diaphragm, the pressure that combustion gas generates act on the flexible sheet 150 of protuberance, finally, combustion gas is from outlet passageway
134 outflows.
Operator, which unclamps, mentions button 120, and the power that combustion gas at this time acts on flexible sheet 150 and spring 148 act on first
Power on valve rod 146 is equal and reversed, and the second valve rod 141 maintains flat with the first valve rod 146 under the action of above-mentioned equilibrant force
Weighing apparatus position, inlet channel 133 are mutually communicated with the holding of outlet passageway 134, and pipe gas self-closing valve 100 works normally；
When fuel gas pipeline leakage or the sebific duct connecting with the pipe gas self-closing valve 100 fall off, into the self-closing valve
Gaseous-pressure can reduce, combustion gas act on the power on flexible sheet 150 reduction, spring 148 pull the first valve rod 146 along valve rod
Set 1452 is slided towards self-closing 130 direction of valve base, and the first valve rod 146 drives the second valve rod 141 of magnetic connection therewith sliding
Dynamic, the flexible sheet 150 connect with the second valve rod 141 is flattened and covers all service aisle, at the same seal flap 144 and
The stem head of first valve rod 146 contacts again, and pipe gas self-closing valve 100 is closed；
When occurring the case where gas pipeline accident super-pressure, into the gaseous-pressure superelevation of inlet channel 133, combustion gas is made
Increased suddenly with the power on flexible sheet 150, when this active force is greater than the magnetic force between the second valve rod 141 and the first valve rod 146, the
Two valve rods 141 and the first valve rod 146 are detached from, and spring 148 pulls the first valve rod 146 along valve stem sleeve 1452 towards self-closing valve base
The sliding of 130 directions, the flexible sheet 150 connecting with the second valve rod 141 are flattened and are completely covered service aisle, seal flap
144 contact again with the stem head of the first valve rod 146, and pipe gas self-closing valve 100 is closed.
The pipe gas self-closing valve 100 is mounted with spring 148 on its spool, allows spool in elastic force and gas pressure
Power effect lower edge valve stem sleeve 1452 slides up and down, so that the self-closing valve has the function of being automatically closed, further, pipeline combustion
Gas self-closing valve 100 also sets two-part for spool, and passes through magnetic part 143 for the first valve rod 146 of separation and the second valve rod
141 connect, and enable the self-closing valve in pipeline in the case where overpressure of gas, the first valve rod 146 and the second valve rod 141
It is automatically separated, achievees the purpose that close valve.The gas self-closing valve makes it by the cooperation between spring 148 and magnetic part 143
It is provided with super-pressure, ultralow pressure and the triple protection of o-volt protection function, valve is can be automatically closed, prevents fortuitous event
Occur, ensure that with gas safety.
Above description is merely a prefered embodiment of the utility model, is not intended to limit the utility model, for
For those skilled in the art, various modifications and changes may be made to the present invention.All spirit and original in the utility model
Within then, any modification, equivalent replacement, improvement and so on be should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of pipe gas self-closing valve characterized by comprising
Self-closing valve base offers inlet channel and outlet passageway in the self-closing valve base, the inlet channel with it is described
The intersection of outlet passageway is provided with service aisle；
First valve rod, ventilation seat, sealing flap and elastic component, first valve rod, the ventilation seat and the sealing flap are equal
It is mounted in the service aisle；The sealing flap is fixed on the ventilation seat；First valve rod is placed on described logical
Be slidably connected in gas seat with the ventilation seat, first valve rod have opposite first end and second end, described first
When valve rod is in initial position, the first end contacts with each other with the sealing flap, and first valve rod is in operating position
When, the first end and the sealing flap are detached from；The elastic component is mounted between the ventilation seat and first valve rod,
When first valve rod is in the initial position, in the raw, first valve rod is in the work to the elastic component
When making position, compressive state is between the elasticity, and
Second valve rod, magnetic part and flexible sheet, second valve rod are located above the first end, and second valve rod passes through
The magnetic part is connect with the first valve rod magnetism；The flexible sheet is fixedly connected on second valve rod close to described
Simultaneously the service aisle is completely covered in one end of magnetic part；The other end of second valve rod is pierced by the self-closing valve base.
2. pipe gas self-closing valve according to claim 1, which is characterized in that in the first end of first valve rod
It is provided with stem head, the magnetic part, the lateral wall of the stem head and the sealing are fixed on the end face of the stem head
The inner ring of flap is in contact.
3. pipe gas self-closing valve according to claim 2, which is characterized in that the lateral wall of the stem head offers one
Groove is enclosed, the inner ring of the sealing flap is embedded in the groove, and the sealing flap separably cooperates with the groove, institute
The outer ring for stating sealing flap is fixed on the ventilation seat.
4. pipe gas self-closing valve according to claim 1, which is characterized in that the ventilation seat includes vent disc and valve
Rod set, the vent disc are fixedly connected on one end of the valve stem sleeve；The inner wall of the vent disc outer wall and the service aisle
Fitting, the valve stem sleeve are set in around first valve rod, and the outer ring of the sealing flap is fixed on the vent disc.
5. pipe gas self-closing valve according to claim 4, which is characterized in that offer annular on the vent disc outer wall
Groove, is provided with elastic seal ring in the annular groove, and the inner wall of the elastic seal ring and the service aisle is close
It fits together.
6. pipe gas self-closing valve according to claim 1, which is characterized in that in the second end of first valve rod
It is provided with spring stop, the spring stop and first valve rod are detachably connected.
7. pipe gas self-closing valve according to claim 6, which is characterized in that the elastic component is spring, the spring
One connect with the spring stop on first valve rod, other end with it is described ventilation seat on vent disc be in contact.
8. pipe gas self-closing valve according to claim 1, which is characterized in that be fixedly connected in the self-closing valve base
Valve deck, in the middle part of the valve deck on offer through-hole, one end of second valve rod is pierced by the through-hole.
9. pipe gas self-closing valve according to claim 8, which is characterized in that the inner ring of the flexible sheet is fixedly connected
On second valve rod, the outer ring of the flexible sheet is fixedly connected on the combination of the valve deck and the self-closing valve base
Place.
10. pipe gas self-closing valve according to claim 1, which is characterized in that second valve rod, first valve rod
And the ventilation seat is plastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821284150.XU CN208634453U (en) | 2018-08-09 | 2018-08-09 | A kind of pipe gas self-closing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821284150.XU CN208634453U (en) | 2018-08-09 | 2018-08-09 | A kind of pipe gas self-closing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208634453U true CN208634453U (en) | 2019-03-22 |
Family
ID=65740951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821284150.XU Active CN208634453U (en) | 2018-08-09 | 2018-08-09 | A kind of pipe gas self-closing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208634453U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758030A (en) * | 2018-08-09 | 2018-11-06 | 成都中科唯实仪器有限责任公司 | A kind of pipe gas self-closing valve and its self-closing method |
-
2018
- 2018-08-09 CN CN201821284150.XU patent/CN208634453U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758030A (en) * | 2018-08-09 | 2018-11-06 | 成都中科唯实仪器有限责任公司 | A kind of pipe gas self-closing valve and its self-closing method |
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Effective date of registration: 20221208 Address after: 618030 Building 5, SME Incubation Park, Deyang Economic Development Zone, No. 9, Xunhu Road, Jingyang District, Deyang City, Sichuan Province Patentee after: Zhongke Weishi Technology (Deyang) Co.,Ltd. Address before: 610000 No. 7, South 1st Road, Keyuan, hi tech Zone, Chengdu, Sichuan Patentee before: CHENGDU ZHONGKE WISH INSTRUMENTS CO.,LTD. |