CN203395363U - Valve stem with efficient sealing performance - Google Patents
Valve stem with efficient sealing performance Download PDFInfo
- Publication number
- CN203395363U CN203395363U CN201320440309.3U CN201320440309U CN203395363U CN 203395363 U CN203395363 U CN 203395363U CN 201320440309 U CN201320440309 U CN 201320440309U CN 203395363 U CN203395363 U CN 203395363U
- Authority
- CN
- China
- Prior art keywords
- valve stem
- conical surface
- sealing performance
- utility
- model
- 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
Images
Landscapes
- Lift Valve (AREA)
Abstract
The utility model discloses a valve stem with efficient sealing performance. The valve stem comprises a valve stem body, and a small conical surface in annular distribution, is arranged at the position, provided with a sealing washer, on the valve steam body. According to the valve stem, when a traditional sealing washer with a square section is matched with the small conical surface on the valve stem body, the sealing washer and the small conical surface are in line contact, friction force can be reduced by the contact mode, further torque and deformation are reduced, and sealing performance is better.
Description
Technical field
The utility model relates to a kind of valve rod with efficient sealed performance.
Background technique
The seal washer that on tradition valve rod there is cover is plane with valve rod and coordinates, and both fitting surface areas are large, and same frictional force is also large, easily produces moment of torsion, also easily produces distortion.
Model utility content
In view of the deficiency that background technique exists, technical problem to be solved in the utility model is to provide the valve rod that sealability after coordinating of a kind of and seal washer better has efficient sealed performance.
The utility model takes following technological scheme to complete: have the valve rod of efficient sealed performance, comprise valve stem body, the position that seal washer is set in described valve stem body has the little conical surface of annular spread.
In the utility model, when the seal washer that conventional cross-section is square and the little cone match in valve stem body, both are line contact, and this way of contact can reduce frictional force, and then reduces moment of torsion, reduces distortion, makes better tightness.
Accompanying drawing explanation
The utility model has following accompanying drawing:
The structure cross-sectional schematic of the valve rod with efficient sealed performance that Fig. 1 provides for the utility model.
Embodiment
Accompanying drawing has represented the technical solution of the utility model and embodiment, further describes by reference to the accompanying drawings each details and the working principle thereof of embodiment below again.
As shown in Figure 1, the valve rod with efficient sealed performance that the utility model provides, comprises valve stem body 1, and the position that seal washer is set in described valve stem body 1 has the conelet face 2 of annular spread.Conelet face 2 is distributed with planar annular cushion cap 3 around, and this planar annular cushion cap 3 can be used for making seal washer, seal washer can be out of shape excessive.
Claims (2)
1. a valve rod with efficient sealed performance, comprises valve stem body, it is characterized in that: the position that seal washer is set in described valve stem body has the little conical surface of annular spread.
2. the valve rod with efficient sealed performance according to claim 1, is characterized in that: the described little conical surface is distributed with planar annular cushion cap around.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320440309.3U CN203395363U (en) | 2013-07-24 | 2013-07-24 | Valve stem with efficient sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320440309.3U CN203395363U (en) | 2013-07-24 | 2013-07-24 | Valve stem with efficient sealing performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203395363U true CN203395363U (en) | 2014-01-15 |
Family
ID=49906896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320440309.3U Expired - Fee Related CN203395363U (en) | 2013-07-24 | 2013-07-24 | Valve stem with efficient sealing performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203395363U (en) |
-
2013
- 2013-07-24 CN CN201320440309.3U patent/CN203395363U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203395363U (en) | Valve stem with efficient sealing performance | |
| CN201944256U (en) | Biconical sealing rubber gasket | |
| CN203743495U (en) | Valve rod of flanged joint soft sealed fixing ball valve | |
| CN202561308U (en) | Sealing ring for pipe joint | |
| CN203628007U (en) | Composite packing seal structure | |
| CN203384409U (en) | Line-contact spherical surface sealing ring | |
| CN204961826U (en) | Sealed dual fail -safe disk seat lip circle | |
| CN204114141U (en) | Bi-directional combination oil sealing | |
| CN203404371U (en) | Seal valve | |
| CN203020689U (en) | Inner plug of bottle cover | |
| CN203239950U (en) | Butterfly valve plate ball-shaped sealing face structure | |
| CN203892643U (en) | External pilot relief valve structure | |
| CN203686172U (en) | High pound grade flexible seal safety butterfly valve | |
| CN204083227U (en) | A kind of sealed type exhaust port pad | |
| CN203147018U (en) | Ultralow-temperature valve and valve rod triple sealing structure | |
| CN202790591U (en) | Double-seal structure for stop valve | |
| CN204372185U (en) | A kind of conical surface seal slurry valve | |
| CN201963926U (en) | Novel steel ball plug valve | |
| CN203363398U (en) | Double-packing valve | |
| CN104879519B (en) | A kind of simple fluid path cut-off ball valve | |
| CN204592339U (en) | A kind of sphere flap slurry valve of good seal performance | |
| CN201678134U (en) | Simple bottle stopper | |
| CN202790879U (en) | Novel valve | |
| CN204387341U (en) | A kind of pneumatic throttle of anti-gas-leak | |
| CN204624216U (en) | Fresh-keeping box cover seal ring |
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: 20140115 Termination date: 20140724 |
|
| EXPY | Termination of patent right or utility model |