CN2438885Y - Gas combustion safety plug valve - Google Patents
Gas combustion safety plug valve Download PDFInfo
- Publication number
- CN2438885Y CN2438885Y CN 00210229 CN00210229U CN2438885Y CN 2438885 Y CN2438885 Y CN 2438885Y CN 00210229 CN00210229 CN 00210229 CN 00210229 U CN00210229 U CN 00210229U CN 2438885 Y CN2438885 Y CN 2438885Y
- Authority
- CN
- China
- Prior art keywords
- gas
- utility
- valve
- model
- lock
- Prior art date
- 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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- Taps Or Cocks (AREA)
- Preventing Unauthorised Actuation Of Valves (AREA)
Abstract
The utility model relates to a gas safety plug valve which is suitable for being installed at front of a user meter. The utility model comprises a valve body, a valve core and a plug fixing device which is composed of a plain cushion and a pressing spring and a nut and is arranged at the bottom of the valve core. The utility model is characterized in that the upper part of the valve core is provided with a lock core, and the lower side of the lock core is also provided with a lock pin which can be limited in a groove of the inner side of the valve body. Since the utility model adds a safety control lock on the basis of the existing copper internal thread plug valve, and the utility model is arranged at front of a gas meter of an indoor gas pipeline of a user, the safety of the plug valve is improved. The utility model has the characteristics of simple structure, low cost, safe performance, etc., and is especially suitable for gas industries to manage gas users.
Description
The utility model belongs to the gas valve technical field, specifically a kind of improvement to stopcock.
Along with the modernization day by day of urban development, the resident in city uses rock gas or coal gas also more and more universal in daily life, is very easy to vast city dweller.But, there is only a few combustion gas user to close the preceding stopcock of gas meter without authorization in the city, reequip indoor gas-pipe line privately, the installation that causes does not meet the combustion gas design code, stays potential safety hazard, causes the generation of accidents such as gas leakage, poisoning, blast; Also has only a few combustion gas user because of reequiping, change gas meter privately, even remove gas meter and connecting tube directly is installed to reach the purpose of usurping combustion gas, be in arrears with even refuse to hand over gas charge, combustion gas to look into traveller on a long journey person in addition in addition for a long time and have to extract by force the problems such as contradiction that gas meter and user produce.And ordinary copper internal thread stopcock commonly used at present is made up of valve body, cock and cock set screw nut etc., cock can be rotated arbitrarily, and cock can be pulled down, and the user is switch cock valve even extract cock arbitrarily, stay potential safety hazard easily, cause unnecessary loss.
The purpose of this utility model provides a kind of gas safe stopcock that has control lock.
The purpose of this utility model is achieved in that it includes valve body, spool, reaches the cock fixing device that the spool bottom is made up of plain cushion, stage clip, nut, it is characterized in that being provided with a lock core, also be provided with a lock pin that can be limited in the valve body inboard groove at the downside of lock core on the top of spool.
This practicality is new owing to increased a safety control lock on the basis of existing ordinary copper internal thread stopcock, be installed on user's the gas meter of building gas pipe, service pipe, indoor pipe before, the therefore Security that has improved stopcock greatly.Characteristics such as this is novel to have simple in structurely, with low cost, installs, easy to use, and performance is safe and reliable are particularly suitable for the management of gas industry to the combustion gas user.
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is a sectional structure schematic representation of the present utility model
Fig. 2 is that the A of Fig. 1 is to schematic representation
Fig. 3 is that the B-B of Fig. 1 is to schematic representation
Shown in Fig. 1-3, among the figure 3 is that valve body, 2 is spool, be to be provided with a lock core 10 on the top of spool 2, also be provided with a lock pin 5 that can be limited in valve body 3 inboard grooves at the downside of lock core 10, also be provided with a limit spring 4 in the through hole that this lock pin 5 moves, install the cock fixing device of forming by plain cushion 6, stage clip 7, nut 8 additional in the bottom of spool 2, cock can not arbitrarily be extracted, guarantee that valve is safe and reliable.Among the figure 1 is key in addition, and 9 is that valve core through hole, 11 is that lock core spring, 12 is lock core marble.Said structure is based on copper internal thread stopcock, does not change the Conncetion cimension of existing stopcock; Do not reduce the rated working pressure and the structural strength of stopcock; Suitably increase faucet valve and spool upper half part height, in its structure, lockset is installed; Cock spool upper half part with stopcock is a lock core, and stopcock valve body upper half part is a lock body; When stopcock was in opening state, the cock spool can be to left and right any rotation, and the cock spool automatically locks by lock pin 5 when cock rotates to closed condition, and valve closing cuts off source of the gas and stops air feed; When stopcock was in closed condition, the cock spool automatically locked in 50 °～90 ° angular regions, had only and inserted supporting key, rotational lock core, the groove that makes lock core break away from the valve casing inboard, spool cock ability left rotation and right rotation, valve could be opened again, gives the normal air feed of user.The key of gas safe stopcock can be with a kind of key by zone design, regional thus coal gas maintenance or administrative staff grasp, when the user needs repairing, reequips gas-pipe line or is in arrears with gas charge and after closing the gas safe stopcock, have only check no problem by region coal gas maintenance or administrative staff after, the gas safe stopcock could be opened again air feed into the user.
Claims (2)
1, a kind of gas safe stopcock of installing before the subscriber's meter that is applicable to, it includes valve body, spool, reaches the cock fixing device that the spool bottom is made up of plain cushion, stage clip, nut, it is characterized in that being provided with a lock core, also be provided with a lock pin that can be limited in the valve body inboard groove at the downside of lock core on the top of spool.
2, gas safe stopcock according to claim 1 is characterized in that also being provided with a limit spring in the through hole of lock pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00210229 CN2438885Y (en) | 2000-09-07 | 2000-09-07 | Gas combustion safety plug valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00210229 CN2438885Y (en) | 2000-09-07 | 2000-09-07 | Gas combustion safety plug valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2438885Y true CN2438885Y (en) | 2001-07-11 |
Family
ID=33577157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00210229 Expired - Fee Related CN2438885Y (en) | 2000-09-07 | 2000-09-07 | Gas combustion safety plug valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2438885Y (en) |
-
2000
- 2000-09-07 CN CN 00210229 patent/CN2438885Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |