CN202914876U - Installation structure for valve stem of soft seal butterfly valve - Google Patents
Installation structure for valve stem of soft seal butterfly valve Download PDFInfo
- Publication number
- CN202914876U CN202914876U CN 201220509892 CN201220509892U CN202914876U CN 202914876 U CN202914876 U CN 202914876U CN 201220509892 CN201220509892 CN 201220509892 CN 201220509892 U CN201220509892 U CN 201220509892U CN 202914876 U CN202914876 U CN 202914876U
- Authority
- CN
- China
- Prior art keywords
- valve
- soft seal
- butterfly valves
- installation structure
- seal butterfly
- 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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Abstract
The utility model discloses an installation structure for valve stems of soft seal butterfly valves. The installation structure for valve stems of soft seal butterfly valves comprises a valve seat, an installation hole formed on the upper end of the valve seat, an upper half shaft passed through the installation hole, a sealing bushing arranged between the upper half shaft and the installation hole, a sealing groove formed in the sealing bushing, and a circlip for hole fixedly disposed at the upper end of the sealing bushing. The installation structure for valve stems of soft seal butterfly valves has the advantages of high temperature resistance, good sealability, convenient operation, no friction once opened and closed, and when closed, sealability is improved with the increase of the moment of the transmission mechanism, thereby improving sealability of the butterfly valves and prolonging service life of the butterfly valves.
Description
Technical field
The utility model relates to the valve rod mounting structure of soft sealing butterfly valve.
Background technique
The butterfly plate of the valve rod mounting structure of soft sealing butterfly valve is installed on the diametric(al) of pipeline.In the butterfly valve body cylindrical channel, the disc butterfly plate rotates around axis, and angle of swing is between 0 ° ~ 90 °, and when rotating to 90 °, valve is the board full-gear then.
At present, the valve rod mounting structure of soft sealing butterfly valve obtains using very widely in many fields such as oil, chemical industry, metallurgy, water power as a kind of parts that are used for realizing pipe-line system break-make and flow control.In known butterfly valve technology, its seal form adopts sealing configuration more, and sealing material is rubber, teflon etc.Because the restriction of structure characteristic, be not suitable with high temperature resistant, high pressure and corrosion-resistant, the industry such as resistance to wear.
The model utility content
The purpose of this utility model provides a kind of valve rod mounting structure of soft sealing butterfly valve, has high temperature resistantly, and sealing is strong, operate light, open and close without friction, come compensation sealing along with the moment of driving mechanism increases when closing, improved the sealability of butterfly valve and the advantage that increases the service life.
The technical solution of the utility model is as follows:
The valve rod mounting structure of soft sealing butterfly valve includes valve seat, and the valve seat upper end has mounting hole, passed semiaxis in the mounting hole, be provided with stuffing box gland between upper semiaxis and the mounting hole inwall, have seal groove in the stuffing box gland, the upper end of stuffing box gland is fixed with circlip for hole.
Be provided with O-ring seals in the described seal groove.
The utlity model has high temperature resistantly, sealing is strong, operates lightly, opens and closes without friction, comes compensation sealing along with the moment of driving mechanism increases when closing, and has improved the sealability of butterfly valve and the advantage that increases the service life.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Referring to accompanying drawing, the valve rod mounting structure of soft sealing butterfly valve, include valve seat 1, valve seat 1 upper end has mounting hole 2, pass semiaxis 3 in the mounting hole 2, be provided with stuffing box gland 4 between upper semiaxis 3 and mounting hole 2 inwalls, had seal groove 5 in the stuffing box gland 4, the upper end of stuffing box gland is fixed with circlip for hole 6, is provided with O-ring seals in the seal groove.
Claims (2)
1. the valve rod mounting structure of soft sealing butterfly valve includes valve seat, and the valve seat upper end has mounting hole, it is characterized in that: passed semiaxis in the mounting hole, be provided with stuffing box gland between upper semiaxis and the mounting hole inwall, have seal groove in the stuffing box gland, the upper end of stuffing box gland is fixed with circlip for hole.
2. the valve rod mounting structure of described soft sealing butterfly valve according to claim 1 is characterized in that: be provided with O-ring seals in the described seal groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220509892 CN202914876U (en) | 2012-09-29 | 2012-09-29 | Installation structure for valve stem of soft seal butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220509892 CN202914876U (en) | 2012-09-29 | 2012-09-29 | Installation structure for valve stem of soft seal butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202914876U true CN202914876U (en) | 2013-05-01 |
Family
ID=48163193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220509892 Expired - Fee Related CN202914876U (en) | 2012-09-29 | 2012-09-29 | Installation structure for valve stem of soft seal butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202914876U (en) |
-
2012
- 2012-09-29 CN CN 201220509892 patent/CN202914876U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130501 Termination date: 20130929 |