CN2888203Y - Valve seat structure - Google Patents
Valve seat structure Download PDFInfo
- Publication number
- CN2888203Y CN2888203Y CN 200620068230 CN200620068230U CN2888203Y CN 2888203 Y CN2888203 Y CN 2888203Y CN 200620068230 CN200620068230 CN 200620068230 CN 200620068230 U CN200620068230 U CN 200620068230U CN 2888203 Y CN2888203 Y CN 2888203Y
- Authority
- CN
- China
- Prior art keywords
- valve seat
- flange
- trim ring
- valve
- valve body
- 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
Landscapes
- Lift Valve (AREA)
Abstract
The utility model provides a valve base structure, comprising a valve base, O-shape ring and a press ring; O-shape seal is used between the valve base and the valve body, the press ring is an open-type structure and possesses a boss club at the place which is close to the flange of the valve body, there is a groove corresponding to the boss club at the corresponding place, screw holes are distributed evenly on the press ring and are fixed on the valve base through screw. The utility model has beneficial effect of simple structure, convenient processing, reliable seal of the flange and good strength.
Description
Affiliated technical field
The utility model relates to a kind of valve seat, especially a kind of valve seat of butterfly valve.
Background technique
Adopt the butterfly valve of floating valve seat structure at present in tradition, its valve seat is fixed on valve body by trim ring, trim ring is L shaped structure, the chimb of trim ring is by the flange side of screw at valve body, the flange side of valve body has and the identical groove of the chimb of trim ring, and the sealing surface of its flange is narrow, and flange is difficult to sealing, in addition because the groove that the flange side of valve body has and the chimb of trim ring coincide is too many to the strength reduction of flange.
Summary of the invention
For the flange facing that overcomes existing floating valve seat narrow, the deficiency that flange is difficult to seal and strength of flange is not enough, the utility model provides the valve seat of the butterfly valve that a kind of flange seal is reliable, strength of flange is good.
The technological scheme that its technical problem of solution of the present utility model adopts is a kind of valve seat construction, comprise valve seat, O shape circle, trim ring, pass through seal with O ring between valve seat and the valve body, trim ring is the opposite opened structure, have boss near the valve flange place on the trim ring, the groove that the corresponding position has and the boss shape is coincide on the valve body, uniform tapped hole on the trim ring, by screw on valve seat.
The beneficial effects of the utility model are simple in structure, and are easy to process, and flange seal is reliable and intensity good.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is embodiment's a sectional structural map
Fig. 2 is the sectional structural map of prior art
Among the figure: 1. valve body; 2. flange facing; 3. boss; 4.O shape circle; 5. tapped hole; 6. trim ring; 7. valve seat.
Embodiment
As shown in Figure 1, a kind of valve seat construction, comprise valve seat 7, O shape circle 4, trim ring 6, seal by O shape circle 4 between valve seat 7 and the valve body 1, trim ring 6 is the opposite opened structure, has boss 3 near valve body 1 flange place on the trim ring 6, and the corresponding position has the groove that coincide with boss 3 shapes on the valve body 1, uniform tapped hole 5 on the trim ring 6, by screw on valve seat 7.Fig. 2 is the tectonic maps of prior art, its valve seat 7 is fixed on valve body 1 by trim ring 6, trim ring 6 is L shaped structure, the chimb of trim ring 6 is by the flange side of screw at valve body 1, the flange side of valve body 1 has and the identical groove of the chimb of trim ring 8, and its flange facing 2 is narrow, and flange is difficult to sealing, in addition because the groove that the flange side of valve body 1 has and the chimb of trim ring 6 coincide is too many to the strength reduction of flange.
Claims (1)
1, a kind of valve seat construction, comprise valve seat, O shape circle, trim ring, pass through seal with O ring between valve seat and the valve body, it is characterized in that: described trim ring is the opposite opened structure, have boss near the valve flange place on the trim ring, the groove that the corresponding position has and the boss shape is coincide on the valve body, uniform tapped hole on the described trim ring, by screw on described valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620068230 CN2888203Y (en) | 2006-01-03 | 2006-01-03 | Valve seat structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620068230 CN2888203Y (en) | 2006-01-03 | 2006-01-03 | Valve seat structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2888203Y true CN2888203Y (en) | 2007-04-11 |
Family
ID=38046772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620068230 Expired - Fee Related CN2888203Y (en) | 2006-01-03 | 2006-01-03 | Valve seat structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2888203Y (en) |
-
2006
- 2006-01-03 CN CN 200620068230 patent/CN2888203Y/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 |