CN2353983Y - Elastic valve clack - Google Patents
Elastic valve clack Download PDFInfo
- Publication number
- CN2353983Y CN2353983Y CN 98251980 CN98251980U CN2353983Y CN 2353983 Y CN2353983 Y CN 2353983Y CN 98251980 CN98251980 CN 98251980 CN 98251980 U CN98251980 U CN 98251980U CN 2353983 Y CN2353983 Y CN 2353983Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve clack
- utility
- model
- elastic valve
- 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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- Lift Valve (AREA)
Abstract
The utility model relates to an element of a valve, particularly an elastic valve clack. The utility model comprises an upper valve clack body and a lower valve clack body. The connecting part of the upper valve clack body and the lower valve clack body is provided with a disc-shaped space. The utility model which has the advantages of reasonable design, simple structure, material saving, and good sealing performance is particularly suitable for the valve whose working medium have pressure.
Description
The utility model relates to a kind of element of valve, relates in particular to a kind of Elastic valve clack.
Valve is as the annex of boiler tubing or other pipeline, be used for connection and cut off ducted medium circulation, the leakage of valve not only can cause huge waste, and accidents caused easily, influence the ordinary production of enterprise, and flap is the key component of decision valve seal performance.
Therefore the utility model purpose is to provide a kind of and can makes the better Elastic valve clack of valve seal performance.
The technical solution of the utility model is to realize like this, a kind of Elastic valve clack, comprise valve petal body, lower Disc body, it is characterized in that: going up valve petal body and lower Disc body joint has disc space, the upper base diameter in this space is equal to or slightly less than the external diameter of sealing surface, last valve petal body and the welding of lower Disc body form an airtight disc space in the middle of the whole like this valve petal body.
The utlity model has reasonable in design, simple in structure, economical with materials, good seal performance, must very big change the structure of existing valve, be easy to characteristics such as popularization, and this flap is specially adapted to the valve that working medium has pressure.
Accompanying drawing is the utility model structure section figure.
Below in conjunction with accompanying drawing structure of the present utility model and working principle are described.
A kind of Elastic valve clack comprises valve petal body 1, and lower Disc body 2, its special way are between valve petal body 1 and the lower Disc body 2 airtight disc space 3 is arranged.The sealing of valve, be to be in contact with one another by a pair of sealing surface 5 on valve seat 4 and the lower Disc body 2 to form sealing pair and finish, sealability is by the decision of the seal pressure on the quality of sealing surface and its face, the sealing force that seal pressure is then produced by valve rod 6 and the ratio decision of the area of contact of sealing surface.Because the upper base diameter of disc space 3 is equal to or slightly less than the external diameter of sealing surface 5 greater than the diameter of going to the bottom, the distribution of sealing force on sealing surface that valve rod 6 produces then by the outer ring of sealing surface to the inner ring transmission, when being full of the working medium that pressure is arranged in the valve seat 4, the bottom of lower Disc body produces little distortion to space 3 under the pressure effect of working medium, thereby drive little the lifting of inner ring of sealing surface, the little gradient of imperial palace outside the seal pressure that sealing force is produced on sealing surface forms one, correspondingly strengthen the seal pressure in the sealing surface outside, improved the sealability of valve.
Claims (1)
1, a kind of Elastic valve clack comprises valve petal body, lower Disc body, it is characterized in that: going up valve petal body and lower Disc body joint has disc space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98251980 CN2353983Y (en) | 1998-12-31 | 1998-12-31 | Elastic valve clack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98251980 CN2353983Y (en) | 1998-12-31 | 1998-12-31 | Elastic valve clack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2353983Y true CN2353983Y (en) | 1999-12-15 |
Family
ID=33995755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98251980 Expired - Fee Related CN2353983Y (en) | 1998-12-31 | 1998-12-31 | Elastic valve clack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2353983Y (en) |
-
1998
- 1998-12-31 CN CN 98251980 patent/CN2353983Y/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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |