CN202302274U - Sealing mechanism of valve rod and valve body - Google Patents
Sealing mechanism of valve rod and valve body Download PDFInfo
- Publication number
- CN202302274U CN202302274U CN2011203521835U CN201120352183U CN202302274U CN 202302274 U CN202302274 U CN 202302274U CN 2011203521835 U CN2011203521835 U CN 2011203521835U CN 201120352183 U CN201120352183 U CN 201120352183U CN 202302274 U CN202302274 U CN 202302274U
- Authority
- CN
- China
- Prior art keywords
- valve
- rod
- valve rod
- valve body
- sealing
- 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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- Taps Or Cocks (AREA)
- Lift Valve (AREA)
Abstract
The utility model discloses a sealing mechanism of a valve rod and a valve body, which comprises the valve body, the valve rod, a valve seat and a valve cavity. A valve cover is installed at the upper end of the valve body, the valve rod penetrates downwards through the valve cover to extend into the valve cavity, and the valve rod and the valve body are sealed through a sealing ring or packing. A valve clack is fixedly installed at the lower end of the valve rod, the end face of the valve seat is a sealing face, the valve clack and the end of the valve seat are in flexible contact type seal, and a sealing pair is formed. The sealing mechanism of the valve rod and the valve body is reasonable in structure, the sealing ring or the packing is sealed between the valve rod and the valve body, and the valve clack and the valve seat adopt the flexible contact type seal, thereby having good sealing performance, avoiding water leakage, greatly improving quality of a valve and prolonging service life.
Description
Technical field
The utility model relates to the stop valve field, is specifically related to a kind of valve rod of stop valve and the sealing mechanism of valve body.
Background technique
Stop valve belongs to forced seal formula valve, so when valve closing, must exert pressure to flap, does not leak with forced seal face.When medium gets into valve by the flap below; The required resistance that overcomes of steering force is the frictional force of valve rod and filler with by the thrust that pressure produced of medium, the power that the force rate of closing valve is opened valve is big; So it is big that the diameter of valve rod is wanted, otherwise the fault of valve rod bending can take place.In recent years, after occurring from self-packing valve, the MEDIA FLOW of stop valve gets into valve pocket to just changing by the flap top, and at this moment under the pressure medium effect, the power of closing valve is little, and it is big to open the power of valve, and the diameter of valve rod can correspondingly reduce.Simultaneously, under the medium effect, the valve of this form is also tighter.
The model utility content
The purpose of the utility model provides the sealing mechanism of a kind of valve rod and valve body, solves the bad problem of sealability between valve rod and the valve body of existing stop valve.
The technological scheme of the utility model is following:
The sealing mechanism of a kind of valve rod and valve body includes valve body, valve rod, valve seat and valve pocket, and the upper end of valve body is equipped with valve gap; It is characterized in that: described valve rod is passed down through valve gap and extends in the valve pocket; Through seal ring or packing seal, the lower end of valve rod is installed with flap between valve rod and the valve body, and the end face of said valve seat is a sealing surface; The end of described flap and valve seat is flexible contact seal, and forms sealing pair.
The sealing mechanism of described valve rod and valve body is characterized in that: the end of said valve rod is equipped with handwheel.
The beneficial effect of the utility model:
The utility model is rational in infrastructure, adopts seal ring or packing seal between valve rod and the valve body, and adopts flexible contact seal, good seal performance, the problem that can not occur leaking, the quality and the working life of having improved valve greatly between flap and the valve seat.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Referring to Fig. 1, the sealing mechanism of a kind of valve rod and valve body includes valve body 1, valve rod 2, valve seat 3 and valve pocket 4; The upper end of valve body 1 is equipped with valve gap 5, and valve rod 2 is passed down through valve gap 5 and extends in the valve pocket 4, seals through seal ring or filler 6 between valve rod 2 and the valve body 1; The lower end of valve rod 2 is installed with flap 7; The end face of valve seat 3 is a sealing surface, and flap 7 is flexible contact seal with the end of valve seat 3, and forms sealing pair.
Further, the end of valve rod 2 is equipped with handwheel 8.
Claims (2)
1. the sealing mechanism of valve rod and valve body includes valve body, valve rod, valve seat and valve pocket, and the upper end of valve body is equipped with valve gap; It is characterized in that: described valve rod is passed down through valve gap and extends in the valve pocket; Through seal ring or packing seal, the lower end of valve rod is installed with flap between valve rod and the valve body, and the end face of said valve seat is a sealing surface; The end of described flap and valve seat is flexible contact seal, and forms sealing pair.
2. the sealing mechanism of valve rod according to claim 1 and valve body is characterized in that: the end of said valve rod is equipped with handwheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203521835U CN202302274U (en) | 2011-09-20 | 2011-09-20 | Sealing mechanism of valve rod and valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203521835U CN202302274U (en) | 2011-09-20 | 2011-09-20 | Sealing mechanism of valve rod and valve body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202302274U true CN202302274U (en) | 2012-07-04 |
Family
ID=46371169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203521835U Expired - Fee Related CN202302274U (en) | 2011-09-20 | 2011-09-20 | Sealing mechanism of valve rod and valve body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202302274U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384309A (en) * | 2011-09-20 | 2012-03-21 | 铜陵祥云消防科技有限责任公司 | Sealing mechanism of valve rod and valve body |
| CN110094522A (en) * | 2019-05-18 | 2019-08-06 | 喆焱阀业有限公司 | Integrated multi valve |
-
2011
- 2011-09-20 CN CN2011203521835U patent/CN202302274U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384309A (en) * | 2011-09-20 | 2012-03-21 | 铜陵祥云消防科技有限责任公司 | Sealing mechanism of valve rod and valve body |
| CN110094522A (en) * | 2019-05-18 | 2019-08-06 | 喆焱阀业有限公司 | Integrated multi valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20120920 |