CN205780995U - Many seal ball-valves - Google Patents
Many seal ball-valves Download PDFInfo
- Publication number
- CN205780995U CN205780995U CN201620487569.XU CN201620487569U CN205780995U CN 205780995 U CN205780995 U CN 205780995U CN 201620487569 U CN201620487569 U CN 201620487569U CN 205780995 U CN205780995 U CN 205780995U
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- CN
- China
- Prior art keywords
- valve
- valve rod
- valve body
- flexure strip
- ball
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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 discloses a kind of many seal ball-valves, including valve body, valve gap, spool and valve rod, described valve rod is arranged in valve body and valve rod lower end is connected with spool, it is characterized in that: described valve body and valve gap junction offer the short slot of annular spread, it is provided with annular gasket in described short slot, it is additionally provided with annular groove on described valve body, it is provided with O-ring seal in described annular groove, inwall at described valve body correspondence valve rod is provided with cannelure, being provided with flexure strip in described cannelure, described flexure strip coordinates with the peripheral extruding of valve rod.This utility model is provided with between valve body and valve gap annular gasket and O-ring seal two seals structure, strengthen the sealing property of ball valve, and by flexure strip, valve rod is balanced, positions and guide effect, ensure the axiality of valve rod, effectively prevent valve rod beat, further enhance the sealing property of ball valve.
Description
Technical field
This utility model relates to a kind of many seal ball-valves.
Background technology
Conventional ball valve the most only arranges one gasket seal, this structure does not ensures that the sealing property of ball valve in some cases, such as valve is long-play in the environment of pressure or variations in temperature are relatively big, or valve tension when mounted, time length, flange is easily generated torsional deformation, and for variable operating mode, when pressure rises, likely beyond the contact pressure scope of pad, medium easily backs down seal clearance and leakage occurs, and valve rod is also easily subject to the impact of pressure medium, thus there is beat, the sealing property reduction causing stem position causes dielectric leakage.
Summary of the invention
In view of the deficiency of background technology, technical problem to be solved in the utility model is to provide one and has multi-sealing structure, the more preferable many seal ball-valves of sealing property.
Realize to this end, this utility model adopts the following technical scheme that:
A kind of many seal ball-valves, including valve body, valve gap, spool and valve rod, described valve rod is arranged in valve body and valve rod lower end is connected with spool, it is characterized in that: described valve body and valve gap junction offer the short slot of annular spread, it is provided with annular gasket in described short slot, it is additionally provided with annular groove on described valve body, it is provided with O-ring seal in described annular groove, inwall at described valve body correspondence valve rod is provided with cannelure, being provided with flexure strip in described cannelure, described flexure strip coordinates with the peripheral extruding of valve rod.
Described cannelure is additionally provided with fixed block, and described fixed block one end is connected with flexure strip.
After using technique scheme, annular gasket and O-ring seal two seals structure it is provided with between valve body and valve gap, strengthen the sealing property of ball valve, and by flexure strip, valve rod is balanced, positions and guide effect, ensure the axiality of valve rod, effectively prevent valve rod beat, further enhance the sealing property of ball valve.
Accompanying drawing explanation
This utility model has a drawings described below:
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the enlarged drawing in Fig. 1 at A.
Detailed description of the invention
Shown in seeing figures.1.and.2, many seal ball-valves that this utility model provides include valve body 1, valve gap 2, spool 3 and valve rod 4, valve rod 4 is arranged in valve body 1 and valve rod 4 lower end is connected with spool 3, valve body 1 and valve gap 2 junction offer the short slot 5 of annular spread, annular gasket 6 it is provided with in short slot 5, form the first seal structures, annular groove 7 it is additionally provided with on valve body 1, O-ring seal 8 it is provided with in annular groove 7, form the second seal structures, inwall at the corresponding valve rod 4 of valve body 1 is provided with cannelure 9, flexure strip 10 it is provided with in cannelure 9, flexure strip 10 coordinates with the peripheral extruding of valve rod 4, effectively prevent valve rod 4 from beat occurring, cannelure 9 is additionally provided with fixed block 11, strengthen the location to valve rod 4, fixed block 11 one end is connected with flexure strip 10.
In the present embodiment, the first seal structures that annular gasket 6 is ball valve in short slot 5, O-ring seal 8 in cannelure 7 is the second seal structures, dual-seal substantially increases the sealing property of ball valve, extends service life, additionally, valve rod 4 is balanced by flexure strip 10 and fixed block 11, positions and guide effect, ensure the axiality of valve rod 4, effectively prevent valve rod 4 from beat occurring, further enhance the sealing property of ball valve.
Claims (2)
1. seal ball-valve more than a kind, including valve body, valve gap, spool and valve rod, described valve rod is arranged in valve body and valve rod lower end is connected with spool, it is characterized in that: described valve body and valve gap junction offer the short slot of annular spread, it is provided with annular gasket in described short slot, it is additionally provided with annular groove on described valve body, it is provided with O-ring seal in described annular groove, inwall at described valve body correspondence valve rod is provided with cannelure, being provided with flexure strip in described cannelure, described flexure strip coordinates with the peripheral extruding of valve rod.
Many seal ball-valves the most according to claim 1, is characterized in that: described cannelure is additionally provided with fixed block, and described fixed block one end is connected with flexure strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620487569.XU CN205780995U (en) | 2016-05-26 | 2016-05-26 | Many seal ball-valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620487569.XU CN205780995U (en) | 2016-05-26 | 2016-05-26 | Many seal ball-valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205780995U true CN205780995U (en) | 2016-12-07 |
Family
ID=58110583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620487569.XU Expired - Fee Related CN205780995U (en) | 2016-05-26 | 2016-05-26 | Many seal ball-valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205780995U (en) |
-
2016
- 2016-05-26 CN CN201620487569.XU patent/CN205780995U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20200526 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |