CN2596121Y - Flange connecting central plate type butterfly valve - Google Patents
Flange connecting central plate type butterfly valve Download PDFInfo
- Publication number
- CN2596121Y CN2596121Y CN 02293424 CN02293424U CN2596121Y CN 2596121 Y CN2596121 Y CN 2596121Y CN 02293424 CN02293424 CN 02293424 CN 02293424 U CN02293424 U CN 02293424U CN 2596121 Y CN2596121 Y CN 2596121Y
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- CN
- China
- Prior art keywords
- valve
- rubber
- valve seat
- valve body
- central
- 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 relates to a flange connecting central plate type butterfly valve fixedly connected with a rubber vulcanized film as a whole between a valve body and a rubber valve seat. The firm combination avoids the twisting of the valve seat and ensures centralized position and stability. A valve plate is arranged at a central position, and thus bi-directional sealing performance is obtained. The streamline shape model and the central arrangement of the valve plate ensures the valve can have higher K #-[V] value and favorable circulation performance. A shaft hole of the valve seat and a side flange surface are provided with a plurality of bulges in order to obtain reliable sealing performance. The valve plate of the valve is positioned at a central symmetrical position, the utility model can be used as an emptying valve at a pipe end as well as used in a pipe for causing a medium to flow toward two directions, and thus the range of use is enlarged.
Description
Technical field
The utility model belongs to F16K valve technology, particularly relates to a kind of flange and connects the board-like butterfly valve in center.
Background technique
At present, domestic known wafer type soft sealing butterfly valve is because valve body is non-flanged structural type, its two ends, left and right sides are bigger to the difficulty of folder sealing, because of the structure of itself is limit, have bigger difficulty when the symmetrical butterfly valve of big specification is installed, and, can not be used for pipe end.And known eccentric flange butterfly valve, because the restriction of its structure, medium can not two-way flow, simultaneously, in system's water supply and sewage work, because the instability of water flow velocity when valve opening and closing, can produce chatter, make fastening piece loosening gradually, even make bolt falling, cause valve invalidation.
Summary of the invention
The utility model is connected the board-like butterfly valve in center for the flange that the technical problem that exists in the solution known technology provides a kind of valve body and valve seat to fix as one.
The technological scheme that the utility model is taked for the technical problem that exists in the solution known technology is:
A kind of flange that has connects the board-like butterfly valve in center, it mainly is made up of fastening pieces such as valve body, rubber valve seat, valve plate, stem shaft, last Lower shaft sleeve, adjustment bolt, bottom cover, " O " shape seal ring and straight pin, key, packing ring, bolts, the inner chamber of valve body is a latus rectum, the latus rectum valve body firmly connects rubber valve seat by one deck vulcanization of rubber film that adheres on its surface of internal cavity, groove on the rubber valve seat external diameter connects the side flange that extends to the valve body both sides, and is provided with several projection on the axis hole place of rubber valve seat and side flange face.
Advantage and the good effect that the utlity model has are: valve body links into an integrated entity securely by one deck vulcanization of rubber film and the rubber valve seat that adheres on its surface of internal cavity, having avoided valve seat to be pulled turns round, guaranteed stability, it is simple in structure, realize easily, because valve plate centering position, thereby has the two way sealed performance; The streamline moulding of valve plate and mid-has guaranteed that valve has higher K
VValue on the basis that guarantees the good trafficability performance of valve, both can be used in the pipe, and medium can two-way flow, can be used for pipe end again, made atmospheric valve and used, thereby expanded the using scope of center symmetry butterfly valve.And on the axis hole place of rubber valve seat and side flange face, be provided with several projection, and played the second road seal protection effect, guaranteed that the sealing of valve is more reliable.Also all settled a round section joint ring, played dustproof effect at the upper and lower neck end of valve body.In addition, the groove overall structure on the rubber valve seat external diameter makes it connect protection and is extended to flange, has improved the operational safety of valve.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the G portion enlarged diagram of Fig. 1.
Embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1 and Fig. 2, axle sleeve 4,10,11 and round section joint ring 12 are installed in the axis hole of valve body 6, the supporting valve rod axle 5 effectively, and guaranteed being covered with dust of valve.Valve body 6 is connected with the firm of rubber valve seat 7 by one deck vulcanization of rubber film 15, has guaranteed the location and the stability of valve mechanism, has overcome the knocking over phenomenon.Stem shaft 5 is passed the valve body 6 that is mounted with axle sleeve and the axis hole of valve plate 9, by straight pin 8 valve plate 9 and stem shaft 5 is connected as one.And on the axis hole place of valve seat 7 and side flange face, be provided with several projection 14, make the sealing of valve more reliable.Following neck place at valve body 6 is coated with round section joint ring, and bottom cover 2 relies on bolt and packing ring 1 to be fixed on the valve body 6, has guaranteed being covered with dust of valve bottom.The switch of valve is loaded onto handle by key 13, and the rotation that drives stem shaft 5 and valve plate 9 realizes.
Claims (1)
1. one kind has the board-like butterfly valve in flange connection center, it is mainly by valve body, rubber valve seat, valve plate, stem shaft, last Lower shaft sleeve, adjust bolt, bottom cover, " O " shape seal ring and straight pin, key, packing ring, fastening pieces such as bolt are formed, it is characterized in that: the inner chamber of valve body (6) is a latus rectum, latus rectum valve body (6) firmly connects rubber valve seat (7) by one deck vulcanization of rubber film (15) that adheres on its surface of internal cavity, groove on rubber valve seat (7) external diameter connects the side flange that extends to valve body (6) both sides, and is provided with several projection on the axis hole place of rubber valve seat (7) and side flange face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02293424 CN2596121Y (en) | 2002-12-24 | 2002-12-24 | Flange connecting central plate type butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02293424 CN2596121Y (en) | 2002-12-24 | 2002-12-24 | Flange connecting central plate type butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2596121Y true CN2596121Y (en) | 2003-12-31 |
Family
ID=33751379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02293424 Expired - Fee Related CN2596121Y (en) | 2002-12-24 | 2002-12-24 | Flange connecting central plate type butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2596121Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322213A (en) * | 2013-07-05 | 2013-09-25 | 杨元亭 | Center glue-lined butterfly valve for medium-pressure pipeline |
| CN103711948A (en) * | 2012-10-05 | 2014-04-09 | 江苏神通阀门股份有限公司 | High-safety regenerative heating furnace reversing device |
| CN106870864A (en) * | 2017-04-25 | 2017-06-20 | 姜丽莉 | A kind of pipe flow speed control structure |
| CN109237084A (en) * | 2018-11-02 | 2019-01-18 | 浙江理工大学 | Bivalve non-return butterfly valve |
-
2002
- 2002-12-24 CN CN 02293424 patent/CN2596121Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711948A (en) * | 2012-10-05 | 2014-04-09 | 江苏神通阀门股份有限公司 | High-safety regenerative heating furnace reversing device |
| CN103322213A (en) * | 2013-07-05 | 2013-09-25 | 杨元亭 | Center glue-lined butterfly valve for medium-pressure pipeline |
| CN106870864A (en) * | 2017-04-25 | 2017-06-20 | 姜丽莉 | A kind of pipe flow speed control structure |
| CN109237084A (en) * | 2018-11-02 | 2019-01-18 | 浙江理工大学 | Bivalve non-return butterfly valve |
| CN109237084B (en) * | 2018-11-02 | 2024-03-12 | 浙江理工大学 | Double-flap check butterfly valve |
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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 |