CN2336147Y - Leakproof valve base of valve for gas cylinder - Google Patents
Leakproof valve base of valve for gas cylinder Download PDFInfo
- Publication number
- CN2336147Y CN2336147Y CN 98228562 CN98228562U CN2336147Y CN 2336147 Y CN2336147 Y CN 2336147Y CN 98228562 CN98228562 CN 98228562 CN 98228562 U CN98228562 U CN 98228562U CN 2336147 Y CN2336147 Y CN 2336147Y
- Authority
- CN
- China
- Prior art keywords
- valve
- gas cylinder
- cylinder
- valve seat
- utility
- 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
Links
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model relates to a leakproof valve base of a valve for gas cylinder, belonging to the field of gas cylinder accessory manufacture. The utility model comprises the valve base of a valve for a gas cylinder, welded on a gas cylinder, the upper part of the valve base of a valve for a gas cylinder is provided with an annular side wall whose inner side surface is provided with screw thread used for connecting a capsule; a sealing face which can cause a sealing ring to realize a sealability is arranged at the part that the upper end surface of valve base of a valve for a gas cylinder is attached to the lower end face of the capsule. The utility model has the advantage that the inner surface screw thread is not easy to suffer from mechanical damage, and the utility model is convenient in oiling and maintenance.
Description
The utility model belongs to the gas cylinder parts, makes the field in particular for the gas cylinder parts that prevent to leak.
The multiple gases steel cylinder is a gas cylinder, and in use, gas through pressurized storage is wherein adorned the pressure of gas in parts on the gas cylinder such as cylinder valve, plug screw are bearing on the one hand all the time; On the other hand, gas cylinder parts such as cylinder valve, plug screw also suffer the infringement of corrosion, especially in the infringement of dress gas with its corrosion under the situation of severe corrosive such as splendid attire chlorine will aggravate greatly.Thereby the leakage of gas cylinder cylinder valve, plug screw is frequent generation, makes people's pain in the neck especially again.Usual practice is to buckle a valve protection cap on cylinder valve valve seat (abbreviation valve seat) plug screw obturating plug (abbreviation obturating plug), and the valve protection cap lower inside is offered screw thread, with the threads engaged of valve seat or obturating plug upper outside.Its shortcoming is that the screw thread of valve seat or obturating plug upper outside suffers mechanical damage easily, often causes valve protection cap to be screwed on when leaking generation, is seeing the adverse consequences that gas escapes helplessly.
The purpose of this utility model is to overcome above-mentioned deficiency and a kind of gas cylinder leakproof cylinder valve valve seat is provided, and its screw thread that cooperates with valve protection cap is arranged on the position that does not subject to mechanical damage.
The purpose of this utility model is realized by the following technical programs: a kind of gas cylinder leakproof cylinder valve valve seat, comprise the cylinder valve valve seat that is welded on the gas cylinder, the top of this cylinder valve valve seat is provided with annular sidewall, and this annular sidewall inner side surface offers and is used for the screw thread that connects with the valve protection cap spiral; Described cylinder valve valve seat and the valve protection cap lower end surface position that fits is provided with and is used to use seal ring to reach bubble-tight seal face.
According to above technological scheme, the inboard of the annular sidewall on the cylinder valve valve seat is offered screw thread and is connected with the valve protection cap spiral, and realizes tightness by seal ring.Like this, the screw thread setting on the cylinder valve valve seat becomes present inner side surface by original outer side surface, outside just having avoided being exposed to, is subject to the drawback of mechanical damage.On the other hand, screw thread is arranged on inner side surface, also helps refueling at ordinary times maintenance, to slow down the effect of corrosion.
Below in conjunction with accompanying drawing the utility model is described in detail.
Fig. 1 is a sectional view of the present utility model.
Fig. 1 illustrates match with valve protection cap 1 situation when using of the utility model.Cylinder valve valve seat 7 is welded on the gas cylinder 8 among Fig. 1, and screw thread 6 is that cylinder valve connects usefulness with cylinder valve valve seat spiral.The top of cylinder valve valve seat 7 is provided with annular sidewall 3, the inner side surface of annular sidewall 3 offers and is used for the screw thread 2 (existing cylinder valve valve seat top does not have annular sidewall) that connects with valve protection cap 1 spiral, is provided with and is used to use seal ring 4 to reach bubble-tight seal face 5 with the position that fits, valve protection cap 1 lower end surface on the cylinder valve valve seat 7.Plug screw obturating plug and above-mentioned cylinder valve valve seat are identical on the gas cylinder 8.Its difference only is that screw thread 6 is used to connect plug screw or cylinder valve among Fig. 1.Therefore, have the plug screw obturating plug of above-mentioned feature, belong to this practical protection domain.
Claims (1)
1, a kind of gas cylinder leakproof cylinder valve valve seat, comprise the cylinder valve valve seat that is welded on the gas cylinder, it is characterized in that the top of described cylinder valve valve seat (7) is provided with annular sidewall (3), the inner side surface of annular sidewall (3) offers and is used for the screw thread (2) that connects with valve protection cap (1) spiral; Described cylinder valve valve seat (7) is gone up and valve protection cap (1) lower end surface fits, and the position is provided with is used to use seal ring (4) to reach bubble-tight seal face (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98228562 CN2336147Y (en) | 1998-04-02 | 1998-04-02 | Leakproof valve base of valve for gas cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98228562 CN2336147Y (en) | 1998-04-02 | 1998-04-02 | Leakproof valve base of valve for gas cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2336147Y true CN2336147Y (en) | 1999-09-01 |
Family
ID=33978640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98228562 Expired - Fee Related CN2336147Y (en) | 1998-04-02 | 1998-04-02 | Leakproof valve base of valve for gas cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2336147Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102939247A (en) * | 2010-04-20 | 2013-02-20 | 卡普尼亚公司 | Compressed gas cylinder with an integral valve |
-
1998
- 1998-04-02 CN CN 98228562 patent/CN2336147Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102939247A (en) * | 2010-04-20 | 2013-02-20 | 卡普尼亚公司 | Compressed gas cylinder with an integral valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhang Guoqiang Document name: Fee reduction notice |
|
| 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 |