CN200946709Y - Leakage-proof valve for coal gas - Google Patents
Leakage-proof valve for coal gas Download PDFInfo
- Publication number
- CN200946709Y CN200946709Y CN 200620044356 CN200620044356U CN200946709Y CN 200946709 Y CN200946709 Y CN 200946709Y CN 200620044356 CN200620044356 CN 200620044356 CN 200620044356 U CN200620044356 U CN 200620044356U CN 200946709 Y CN200946709 Y CN 200946709Y
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- CN
- China
- Prior art keywords
- gas
- valve
- antileaking
- adjustable lever
- valve body
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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 provides a gas seeping preventing valve belonging to the mechanical technology field, which solves problems of poor stability and hidden danger caused by present technology. The gas seeping preventing valve comprises a gas inlet pipe tie-in and a valve body. A stepped chamber body is formed inside after the gas inlet pipe tie-in and the valve body is connected. A adjusting rod is arranged in the chamber body in axial direction. A supporting bracket is arranged in the chamber body and an air through hole is arranged on the supporting bracket. The adjusting rod goes through the supporting bracket. A seal disk is positioned on one adjusting rod end, the end near the valve body. The seal disk can press against on the steps of the chamber body. A spring is connected with the adjusting rod; two ends of the spring act on the supporting bracket and the seal disk respectively. The gas seeping preventing valve has a simple structure but high stability and security.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of gas antileaking valve.
Background technique
The gas valve that is used for gas range of Chu Shouing mostly is stopcock in the market, is that the moving rotation of armrest cock comes the unlatching of control valve or closes.But stopcock is long-term use after, cock and valve body bonded together and influence normal running, when situation is serious even understand can't the turn cock.
As can be seen, cock can't be rotated and will out of handly be acted on.And, when air feed goes wrong, as: superpressure, super flow, its terminal air hose that connects comes off easily, can cause danger because of cutting off source of the gas automatically.
Summary of the invention
The utility model mainly provides and a kind ofly can effectively prevent gas leakage, by the gas valve that the pressure reduction of valve body both sides is opened automatically, closed, solves prior art and exists coal gas to leak easily, uses unsafe technical problem.
It is a kind of simple in structure that the utility model provides simultaneously, long service life can not influence the gas antileaking valve that uses because of the aging of connection fittings, solves the complex structure that exists in the prior art, be subjected to the influence of link easily, occur the technical problem of potential safety hazard after link is aging easily.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of gas antileaking valve, comprise suction tude joint and connected valve body, it is characterized in that, the suction tude joint is connected its inner cavity with step that forms of back with valve body, be provided with an adjustable lever in the cavity vertically, described cavity internal fixation supporting frame, the supporting frame place is provided with ventilating hole, above-mentioned adjustable lever passes supporting frame, it is that tail end is provided with seal disc that adjustable lever is close to valve body one end, seal disc can be resisted against the step place of above-mentioned cavity, is socketed with spring on the adjustable lever, and the two ends of spring act on respectively on supporting frame and the seal disc.
In this gas antileaking valve, supporting frame is used for adjustable lever is fixed in the cavity, owing to have step in the cavity, seal disc just is connected to the step place after stressed moving, and has so just reached the effect of sealing.When the suffered external force of seal disc during less than the elastic force of spring, it can be returned to original position the elastic force by spring.
When the terminal use that this gas antileaking valve is housed normally used coal gas, coal gas can not produce the pressure minus tolerance as can be seen in the case by this device, that is to say that this device is in normally open; For example gas leakage when abnormal condition occurring, the two ends of leakproof valve produce the pressure minus tolerance, and seal disc is connected to the step place under the effect of pressure, and leakproof valve is in closed condition, thereby forms safety protection.This device can be because of the aging formation gas leakage of connecting tube or other connection fittings.
In above-mentioned gas antileaking valve, the front portion of described adjustable lever is provided with spacing preiection.When adjustable lever utilizes the elastic reset of spring,, can cause adjustable lever to break away from supporting frame if elastic force is excessive.Just can prevent that in being provided with the leakproof valve of this spacing preiection above-mentioned situation from taking place, that is to say, when spacing preiection just can not continue to move with adjustable lever after supporting frame contacts.Certainly, the length lengthening with adjustable lever also is feasible.
In above-mentioned gas antileaking valve, the annular groove that the front portion of described adjustable lever is provided with is equipped with jump ring in the annular groove.Jump ring is with after supporting frame contacts, and adjustable lever can not continue to move equally, can prevent also that by such structure adjustable lever from coming off from supporting frame.
In above-mentioned gas antileaking valve, described seal disc is disc.Such shape and structure is simple, make easily, and its sealing effect is fine when seal disc is connected to the step place.
In above-mentioned gas antileaking valve, described seal disc adopts rubber material to make.Rubber material has certain elasticity, and sealing effect is better.
In above-mentioned gas antileaking valve, the joint of described valve body and suction tude joint is provided with seal ring.
Compared with prior art, the utlity model has following advantage: 1. simple in structure, easy for installation; 2. pass through the opening and closing of the pressure difference autocontrol valve of valve body both sides, stability in use high 3. is because this gas antileaking valve is by acting on the pressure difference at seal disc two ends, and utilize the spring force on the adjustable lever to reach opening and closing, so be not subjected to the aging influence of connecting of valve body both sides, Security is higher.
Description of drawings
Fig. 1 is gas antileaking valve that the utility model the provides structural representation when being in open mode;
Fig. 2 is the structural representation of this gas antileaking valve when being in closed condition.
Fig. 3 is the structural representation at supporting frame place in this gas antileaking valve.
Fig. 4 is that this gas antileaking valve is loaded on the structural representation in the gaspipe line.
Among the figure, 1, the suction tude joint; 2, valve body; 3, cavity; 31, step; 4, supporting frame; 41, ventilating hole; 42, pilot hole; 5, adjustable lever; 51, annular groove; 6, seal disc; 7, jump ring; 8, seal ring; 9, spring; 10, reduction valve; 11, gas pipe.
Embodiment
As depicted in figs. 1 and 2, this gas antileaking valve is made up of air input joint 1, valve body 2, adjustable lever 5 and seal disc 6 etc., and it is loaded on abnormal conditions such as being used to prevent gas leakage on the gaspipe line, sees shown in Figure 4.
As shown in Figure 3, cavity 3 internal fixation a supporting frame 4 with ventilating hole 41, also are provided with an adjustable lever 5 vertically in the cavity 3 simultaneously, and adjustable lever 5 passes supporting frame 4, and adjustable lever 5 is that tail end is provided with seal disc 6 near an end of valve body 2.In the present embodiment, have pilot hole 42 on the supporting frame 4, adjustable lever 5 is through in the pilot hole 42 and can slides in pilot hole 42.
As shown in Figure 4, coal gas uses user's terminal to be provided with a reduction valve 10, and the inlet end of this gas antileaking valve is connected to reduction valve 10 places, and the outlet side of gas antileaking valve joins with the gaspipe line 11 that uses the coal gas place.
As shown in Figure 1, when the terminal use that this gas antileaking valve is housed normally used coal gas, the isostasy at leakproof valve two ends also was in normally open, and coal gas can enter coal gas through cavity 3, ventilating hole 41, air input joint 1 and make use.
As shown in Figure 2, in case when abnormal condition occurring, for example gas leakage etc.This leakproof valve two ends will produce pressure difference, are affixed on step 31 places after this moment, seal disc 6 was subjected to this pressure difference effect to overcome spring 9 elastic force, and leakproof valve is in closed condition.Certainly, this moment, coal gas can't pass through leakproof valve, thereby formed safety protection.After the equilibrium of leakproof valve pressure at two ends, the elastic force of spring 9 acts on the seal disc 6 and makes it break away from step 31 places, and whole leakproof valve returns to open mode.
In order to guarantee the stability in use of this gas antileaking valve, be provided with spacing preiection in the front portion of adjustable lever 5, adjustable lever 5 can be stopped for supported 4 by spacing preiection in the ejection process by spring 9 elastic force, makes adjustable lever 5 can not come off from supporting frame 4.In the present embodiment, be provided with annular groove 51, and jump ring 7 be housed, prevent that by such structure adjustable lever 5 from coming off from supporting frame 4 at annular groove 51 in the front portion of adjustable lever 5.
Claims (6)
1, a kind of gas antileaking valve, comprise suction tude joint (1) and connected valve body (2), it is characterized in that, suction tude joint (1) is connected its inner cavity (3) with step (31) that forms of back with valve body (2), be provided with an adjustable lever (5) in the cavity (3) vertically, described cavity (3) internal fixation supporting frame (4), supporting frame (4) locates to be provided with ventilating hole (41), above-mentioned adjustable lever (5) passes supporting frame (4), it is that tail end is provided with seal disc (6) that adjustable lever (5) is close to valve body (2) one ends, seal disc (6) can be resisted against the step (31) of above-mentioned cavity (3) and locate, be socketed with spring (9) on the adjustable lever (5), the two ends of spring (9) act on respectively on supporting frame (4) and the seal disc (6).
2, gas antileaking valve according to claim 1 is characterized in that, the front portion of described adjustable lever (5) is provided with spacing preiection.
3, gas antileaking valve according to claim 1 is characterized in that, the annular groove (51) that the front portion of described adjustable lever (5) is provided with is equipped with jump ring (7) in the annular groove (51).
According to claim 1 or 2 or 3 described gas antileaking valves, it is characterized in that 4, described seal disc (6) is disc.
5, gas antileaking valve according to claim 4 is characterized in that, described seal disc (6) adopts rubber material to make.
6, gas antileaking valve according to claim 1 is characterized in that, described valve body (2) is provided with seal ring (8) with the joint of suction tude joint (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620044356 CN200946709Y (en) | 2006-07-28 | 2006-07-28 | Leakage-proof valve for coal gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620044356 CN200946709Y (en) | 2006-07-28 | 2006-07-28 | Leakage-proof valve for coal gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200946709Y true CN200946709Y (en) | 2007-09-12 |
Family
ID=38733772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620044356 Expired - Fee Related CN200946709Y (en) | 2006-07-28 | 2006-07-28 | Leakage-proof valve for coal gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200946709Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089057A (en) * | 2014-07-24 | 2014-10-08 | 蚌埠新奥燃气发展有限公司 | Overpressure stop valve |
| CN108180311A (en) * | 2018-02-07 | 2018-06-19 | 菲时特集团股份有限公司 | One kind automatically cuts off angle valve |
-
2006
- 2006-07-28 CN CN 200620044356 patent/CN200946709Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089057A (en) * | 2014-07-24 | 2014-10-08 | 蚌埠新奥燃气发展有限公司 | Overpressure stop valve |
| CN108180311A (en) * | 2018-02-07 | 2018-06-19 | 菲时特集团股份有限公司 | One kind automatically cuts off angle 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: 20070912 Termination date: 20100728 |