CN204239791U - Single piece type fire-proof ball valve - Google Patents
Single piece type fire-proof ball valve Download PDFInfo
- Publication number
- CN204239791U CN204239791U CN201420446262.6U CN201420446262U CN204239791U CN 204239791 U CN204239791 U CN 204239791U CN 201420446262 U CN201420446262 U CN 201420446262U CN 204239791 U CN204239791 U CN 204239791U
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- CN
- China
- Prior art keywords
- valve seat
- annular
- valve
- fire prevention
- single piece
- 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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Abstract
The utility model discloses a kind of single piece type fire-proof ball valve, comprise valve body and spheroid, valve seat is provided with in valve body, described spheroid is in valve seat, annular that described valve body has extended internally fire prevention boss, on described valve seat, corresponding annular fire prevention boss arranges ring-shaped step, and described annular fire prevention boss is stuck on ring-shaped step.The valve seat of this single piece type fire-proof ball valve is step type, and valve seat ring-shaped step and annular boss of preventing fires connect, this structure have following 3 a little: 1, make the sealing surface of valve seat and spheroid widen, improve sealability and the working life of valve; 2, valve seat ring-shaped step plays elastic packing effect with the annular boss connecting part that prevents fires, and can strengthen sealing effect; 3, said structure also makes the height reduction of annular fire prevention boss, thus decreases manufacturing difficulty, saves processing cost.
Description
Technical field
The utility model discloses a kind of single piece type fire-proof ball valve.
Background technique
Tradition single piece type ball valve generally comprises valve body and spheroid, and be provided with valve seat in valve body, described spheroid is in valve seat, but due to structural limitations, is made fire resisting construction relatively difficult, and processing cost is also higher, and sealing effect is not good enough.
Summary of the invention
For the deficiencies in the prior art, problem to be solved in the utility model be to provide a kind of easy to process, processing cost is lower and the better single piece type fire-proof ball valve of sealing effect.
For this reason, the utility model realizes in the following way: single piece type fire-proof ball valve, comprise valve body and spheroid, valve seat is provided with in valve body, described spheroid is in valve seat, annular that described valve body has extended internally fire prevention boss, on described valve seat, corresponding annular fire prevention boss arranges ring-shaped step, and described annular fire prevention boss is stuck on ring-shaped step.
The single piece type fire-proof ball valve that the utility model provides have following 3 a little: 1, make the sealing surface of valve seat and spheroid widen, improve sealability and the working life of valve; 2, valve seat ring-shaped step plays elastic packing effect with the annular boss connecting part that prevents fires, and can strengthen sealing effect; 3, said structure also makes the height reduction of annular fire prevention boss, thus decreases manufacturing difficulty, saves processing cost.
Accompanying drawing explanation
The structure cross-sectional schematic of the single piece type fire-proof ball valve that Fig. 1 provides for the utility model.
Fig. 2 is the A place close-up schematic view of Fig. 1.
Embodiment
Shown in accompanying drawing 1, Fig. 2, the single piece type fire-proof ball valve that the utility model provides, comprise valve body 1 and spheroid 2, valve seat 3 is provided with in valve body 1, described spheroid 2 is in valve seat 3, annular that described valve body 1 has extended internally fire prevention boss 4, on described valve seat 3, corresponding annular fire prevention boss 4 arranges ring-shaped step 5, and described annular fire prevention boss 4 is stuck on ring-shaped step 5.
With reference to shown in accompanying drawing 2, on the basis of above-mentioned the present embodiment, the tip inside of described annular fire prevention boss 4 is with circular cone 6, and the inner side end 7 of described valve seat 3 is concordant with initial part inside circular cone 6, and this structure can avoid the alluvial of material.
Claims (2)
1. a single piece type fire-proof ball valve, comprise valve body and spheroid, valve seat is provided with in valve body, described spheroid is in valve seat, it is characterized in that: annular that described valve body has extended internally fire prevention boss, on described valve seat, corresponding annular fire prevention boss arranges ring-shaped step, and described annular fire prevention boss is stuck on ring-shaped step.
2. single piece type fire-proof ball valve according to claim 1, is characterized in that: the tip inside of described annular fire prevention boss is with circular cone, and the inner side end of described valve seat is concordant with initial part inside circular cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420446262.6U CN204239791U (en) | 2014-08-08 | 2014-08-08 | Single piece type fire-proof ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420446262.6U CN204239791U (en) | 2014-08-08 | 2014-08-08 | Single piece type fire-proof ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204239791U true CN204239791U (en) | 2015-04-01 |
Family
ID=52769290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420446262.6U Expired - Fee Related CN204239791U (en) | 2014-08-08 | 2014-08-08 | Single piece type fire-proof ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204239791U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588207A (en) * | 2017-10-30 | 2018-01-16 | 中国五环工程有限公司 | Fire-type ball valve |
-
2014
- 2014-08-08 CN CN201420446262.6U patent/CN204239791U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588207A (en) * | 2017-10-30 | 2018-01-16 | 中国五环工程有限公司 | Fire-type ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 Termination date: 20150808 |
|
| EXPY | Termination of patent right or utility model |