CN201047463Y - Valve stem nut having composite seal function - Google Patents
Valve stem nut having composite seal function Download PDFInfo
- Publication number
- CN201047463Y CN201047463Y CNU2007200958923U CN200720095892U CN201047463Y CN 201047463 Y CN201047463 Y CN 201047463Y CN U2007200958923 U CNU2007200958923 U CN U2007200958923U CN 200720095892 U CN200720095892 U CN 200720095892U CN 201047463 Y CN201047463 Y CN 201047463Y
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- CN
- China
- Prior art keywords
- nut
- valve
- utility
- model
- rod
- 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 - Lifetime
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Abstract
The utility model discloses a valve rod nut with combination and sealing function. The valve rod nut with combination and sealing function of the utility model consists of a nut cap and a nut rod; the nut cap is internally provided with a dustproof sealing trough; the internal circumferential surface of the nut rod is sequentially provided with an upper ring concave trough and a lower ring concave trough; the external circumferential surface of the nut rod is provided with a ring concave trough. The utility model can be respectively provided with sealing rings in the concave troughs in the application process, thus implementing multiple sealing functions; the structure of the utility model can ensure preventing external leakage of mediums in a valve, and implements the long service life and maintenance-free function of the valve, thus leading the valve to reach the technical requirement of direct embedding.
Description
Technical field
The utility model relates to the machanical fastener field, more particularly, relates to a kind of Stem Mut with combination seal function.
Background technique
Stem Mut as a necessary part in the valve, opening or during closing motion at valve closing member, Stem Mut plays the carry-over moment effect, the spinning movement of functional units such as handwheel is converted into the elevating movement of valve rod, the load that valve rod bore in this process is all born on Stem Mut, the long-time nut that uses can become flexible, and medium leaks outside in the valve and cause.
The model utility content
Technical problem to be solved in the utility model is, overcomes the deficiencies in the prior art, and a kind of Stem Mut with combination seal function is provided.
The utlity model has the Stem Mut of combination seal function, be achieved by following technical proposals, described nut is made up of nut cap and Nut pole; The dust sealing groove is set in the nut cap, and the Nut pole inner peripheral surface sets gradually upper and lower ring groove, and the Nut pole outer circumferential face is provided with ring groove.
The ring groove that Nut pole outer circumferential face described in the utility model is provided with is between upper and lower ring groove.
The utility model in use can be provided with seal ring respectively in described groove, thereby realizes multi-sealed function.Such structure can guarantee that medium does not leak outside in the valve, realizes the valve long lifetime, non-maintaining, thereby can make valve reach the technical requirements of direct-burried.Above-mentioned each seal ring and valve rod fitted seal, seal ring has low-frictional force, does not have extruding force with valve rod, not only guarantees the long lifetime of seal ring, but also has reduced the operation moment of torsion, the working life of further having guaranteed valve.
Description of drawings
Fig. 1 is the utility model structure sectional view.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
As shown in Figure 1, Stem Mut is made up of nut cap 1 that is arranged at top and the Nut pole 2 that is arranged at the bottom, and nut cap and Nut pole are an integral body; Dust sealing groove 3 is set in the nut cap, in the dust sealing groove dust-proof seal ring is set during combination, the Nut pole inner peripheral surface sets gradually upper and lower ring groove 4 and 5, and the Nut pole outer circumferential face is provided with ring groove 6, and the ring groove 6 that the Nut pole outer circumferential face is provided with is between upper and lower ring groove 4 and 5.Above-mentioned ring groove 4,5 and 6 is provided with the O RunddichtringO respectively during combination.
The utility model cooperates dust-proof seal ring and O RunddichtringO, thereby realizes multi-sealed function.Such structure can guarantee that medium does not expose in the valve, realizes the valve long lifetime, non-maintaining, thereby can make valve reach the technical requirements of direct-burried.
Embodiment recited above is described the utility model preferred implementation; be not that design of the present utility model and scope are limited; under the prerequisite that does not break away from the utility model design philosophy; common engineers and technicians make the technical solution of the utility model in related domain various distortion and improvement all should belong to protection domain of the present utility model.
Claims (2)
1. the Stem Mut with combination seal function is characterized in that, described nut is made up of nut cap and Nut pole; The dust sealing groove is set in the nut cap, and the Nut pole inner peripheral surface sets gradually upper and lower ring groove, and the Nut pole outer circumferential face is provided with ring groove.
2. the Stem Mut with combination seal function according to claim 1 is characterized in that, the ring groove that described Nut pole outer circumferential face is provided with is between upper and lower ring groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200958923U CN201047463Y (en) | 2007-04-27 | 2007-04-27 | Valve stem nut having composite seal function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200958923U CN201047463Y (en) | 2007-04-27 | 2007-04-27 | Valve stem nut having composite seal function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201047463Y true CN201047463Y (en) | 2008-04-16 |
Family
ID=39300046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200958923U Expired - Lifetime CN201047463Y (en) | 2007-04-27 | 2007-04-27 | Valve stem nut having composite seal function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201047463Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727255A (en) * | 2013-12-26 | 2014-04-16 | 安徽铜都流体科技股份有限公司 | Compact-type rising-stem gate valve |
| CN106931224A (en) * | 2015-12-31 | 2017-07-07 | 天津市庆成科技发展有限公司 | A kind of electric drive valve |
-
2007
- 2007-04-27 CN CNU2007200958923U patent/CN201047463Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727255A (en) * | 2013-12-26 | 2014-04-16 | 安徽铜都流体科技股份有限公司 | Compact-type rising-stem gate valve |
| CN103727255B (en) * | 2013-12-26 | 2016-05-18 | 安徽铜都流体科技股份有限公司 | Compact Outside screw stem rising through handwheel type gate valve |
| CN106931224A (en) * | 2015-12-31 | 2017-07-07 | 天津市庆成科技发展有限公司 | A kind of electric drive valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080416 |
|
| CX01 | Expiry of patent term |