CN201050623Y - Self-closing type gas cut-off valve - Google Patents
Self-closing type gas cut-off valve Download PDFInfo
- Publication number
- CN201050623Y CN201050623Y CNU2007200123613U CN200720012361U CN201050623Y CN 201050623 Y CN201050623 Y CN 201050623Y CN U2007200123613 U CNU2007200123613 U CN U2007200123613U CN 200720012361 U CN200720012361 U CN 200720012361U CN 201050623 Y CN201050623 Y CN 201050623Y
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- Prior art keywords
- valve
- gas
- fuel gas
- utility
- model
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a self-closing-type fuel gas stop valve, which comprises a valve body with a gas inlet end and a gas outlet end, a pressure cover, a sealing stuffing, a hand wheel, a connecting rod, a valve hole and a cone valve. The utility model is characterized in that a pneumatic control sliding valve is arranged inside a cavity of the valve body, the upper part of the pneumatic control sliding valve is provided with a conical surface closing an upper valve hole, the middle part of the pneumatic control sliding valve is provided with a circumferential surface closing a side valve hole, and the lower part of the pneumatic control sliding valve is provided with a spring. Like the ordinary stop valve, the utility model which can be manually opened and closed can regulate the quantity of the fuel gas; meanwhile, during the utilization of the fuel gas, the utility model can automatically close the valve gate when the fuel gas distinguished for the gas is stopped or the pressure is in short, thereby preventing the leakage of the fuel gas when the gas supply or the fuel gas pressure is restored, so as to play the effect of the safety protection.
Description
Technical field
The utility model belongs to a kind of gas shutoff valve, particularly a kind of self-closing gas shutoff valve.
Background technique
Along with the development of gas industry, combustion gas just is widely used as oven and the family life fuel with cooking stove, in the using process of combustion gas, run into sometimes stop the supple of gas or steam midway or supply gas pressure not enough and cause the phenomenon of stopping working.If people do not discover timely, gas burning system is air feed or when recovering normal pressure again, will cause combustion gas to external leakage, is easy to take place combustion gas poisoning, fire and explosive accident.
The model utility content
The purpose of this utility model provides a kind of self-closing gas shutoff valve; both can and adjust the size of gas quantity with the artificial open and close of the same energy of common stop valve; simultaneously; in the using process of combustion gas; because of stopping the supple of gas or steam or throttle down automatically when causing combustion gas flame-out because of underpressure; prevent to recover air feed or gaseous-pressure and recover just often, combustion gas is played the safety protection effect when external leakage.
The purpose of this utility model is achieved by the following technical solution: it comprises valve body, gland, stuffing box packing, handwheel, connecting rod, valve opening and the cone valve of band inlet end and outlet side, it is characterized in that: the gas control guiding valve is set in the valve pocket of valve body, the top of gas control guiding valve is provided with the conical surface of valve opening above the sealing, the middle part of gas control guiding valve is provided with the circumferential surface of sealing side valve opening, the below assembling spring of gas control guiding valve.
Screw is adjusted in above-mentioned spring lower end assembling.
The utility model has the advantages that: can and adjust the size of gas quantity with the artificial open and close of the same energy of common stop valve; simultaneously; in the using process of combustion gas; because of stopping the supple of gas or steam or throttle down automatically when causing combustion gas flame-out because of underpressure; preventing to recover air feed or gaseous-pressure recovers just often; combustion gas is played the safety protection effect when external leakage.
Description of drawings
Fig. 1 is structural representation of the present utility model (valve is in when closing, and the gas control guiding valve is in opening state).
Fig. 2 is the normal operating condition that the utility model valve is in unlatching.
Fig. 3 is that the utility model cone valve is in opening state stopping air feed, the state of gas control guiding valve throttle down.
Embodiment
See Fig. 1, concrete structure is as follows: valve body 8 upper ends of band inlet end A and outlet side D are connected with joint 7, assembling whorl brace rod 6 in the joint 7.The upper end of connecting rod 6 is by nut 1 closing handle 2, and the lower end of connecting rod 6 connects cone valve 9.Connect spiral pressure cap 3 and gland 4 in joint 7 upper ends, assembling stuffing box packing 5 in gland 4 is in order to the bar 6 that is tightly connected.Valve pocket lower end assembling in valve body 8 has the slide valve buckle 12 of two seals circle, assembling gas control guiding valve 10 in slide valve buckle 12.The top of gas control guiding valve 10 is provided with the conical surface of valve opening above the sealing, and the middle part of gas control guiding valve 10 is provided with the circumferential surface of sealing side valve opening.Screw 14 is adjusted in the below assembling of gas control guiding valve 10, assembling spring 11 between gas control guiding valve 10 and adjustment screw 14.The lower end of slide valve buckle 12 is provided with circlip 13 and fixes slide valve buckle 12, at the bottom assembling end stifled 15.
Working principle: the utility model is connected on the gas pipeline before gas-fired heater or the gas cooker, sees Fig. 1, valve is in when closing, and gas control guiding valve 10 is in opening state.
See Fig. 2, when opening gas valve by handwheel, combustion gas enters the B chamber through inlet end A, makes gaseous-pressure overcome spring 11 pressure, makes gas control guiding valve 10 still be in opening state, and combustion gas is exported to outlet side D to the C chamber through the B chamber.Can come the open and close valve by handwheel 2 as required this moment and adjust the size of gas quantity, valve carries out normal user mode.
See Fig. 3, when air supply system stops air feed or supply gas pressure when very little, valve is in opening state, gaseous-pressure is minimum, gas control guiding valve 10 moves up under the effect of spring 11, sealed the blast tube on the valve body, both closed valve, prevented that air supply system from recovering the gas leakage that air feed caused.
Claims (2)
1. self-closing gas shutoff valve, it comprises valve body, gland, stuffing box packing, handwheel, connecting rod, valve opening and the cone valve of band inlet end and outlet side, it is characterized in that: the gas control guiding valve is set in the valve pocket of valve body, the top of gas control guiding valve is provided with the conical surface of valve opening above the sealing, the middle part of gas control guiding valve is provided with the circumferential surface of sealing side valve opening, the below assembling spring of gas control guiding valve.
2. self-closing gas shutoff valve according to claim 1 is characterized in that: screw is adjusted in the assembling of spring lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200123613U CN201050623Y (en) | 2007-05-29 | 2007-05-29 | Self-closing type gas cut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200123613U CN201050623Y (en) | 2007-05-29 | 2007-05-29 | Self-closing type gas cut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201050623Y true CN201050623Y (en) | 2008-04-23 |
Family
ID=39337109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200123613U Expired - Fee Related CN201050623Y (en) | 2007-05-29 | 2007-05-29 | Self-closing type gas cut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201050623Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968232A (en) * | 2010-10-27 | 2011-02-09 | 蒋清校 | Gas stove pan-overflowing automatic flameout device |
| CN102528848A (en) * | 2012-02-20 | 2012-07-04 | 浙江华岳包装机械有限公司 | Cutter locking valve mechanism of full-hydraulic paper cutting machine |
| CN104864144A (en) * | 2015-05-07 | 2015-08-26 | 江苏神通阀门股份有限公司 | Self-operated anti-discharge valve |
-
2007
- 2007-05-29 CN CNU2007200123613U patent/CN201050623Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968232A (en) * | 2010-10-27 | 2011-02-09 | 蒋清校 | Gas stove pan-overflowing automatic flameout device |
| CN102528848A (en) * | 2012-02-20 | 2012-07-04 | 浙江华岳包装机械有限公司 | Cutter locking valve mechanism of full-hydraulic paper cutting machine |
| CN104864144A (en) * | 2015-05-07 | 2015-08-26 | 江苏神通阀门股份有限公司 | Self-operated anti-discharge valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080423 |