CN2699074Y - Contact rubber seal butterfly valve - Google Patents
Contact rubber seal butterfly valve Download PDFInfo
- Publication number
- CN2699074Y CN2699074Y CN 200420027617 CN200420027617U CN2699074Y CN 2699074 Y CN2699074 Y CN 2699074Y CN 200420027617 CN200420027617 CN 200420027617 CN 200420027617 U CN200420027617 U CN 200420027617U CN 2699074 Y CN2699074 Y CN 2699074Y
- Authority
- CN
- China
- Prior art keywords
- valve
- rubber seal
- butterfly plate
- sealing
- 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 relates to a contact rubber seal butterfly valve, comprising a valve body, a valve rod, a butterfly plate, a driving device, a sealing member and an installing member. The valve body is provided with a valve seat which is matched and sealed with the sealing surface of the butterfly plate, and the sealing surface of the valve seat is made of rubbers. An upper valve rod, a lower valve rod and the butterfly plate are connected by adopting six square holes to cause the butterfly plate to float within certain scope along the axial line direction of the valve rod, and the automatic compensation function is realized during the sealing process to make the sealing ratio pressure uniform. The utility model with good sealing performance and long service life is an opening and closing device used on the pipelines of hydraulic power, power generation and water treatment systems.
Description
Technical field
The utility model relates to a kind of valve, specifically about a kind of soft sealing butterfly valve.
Background technique
Soft sealing butterfly valve is in great demand on the pipeline of industries such as waterpower, generating, water treatment, the common center line rubber butterfly bamper that domestic production is at present used, its sealing principle is to rely on butterfly plate cylindrical sealing surface extruding synthetic rubber valve seat, make the synthetic rubber valve seat produce resiliently deformable and reach interference fit and realize sealing, generally fixedly connected between its butterfly plate and the last lower valve rod by pin, in use the seal pressure of butterfly plate sealing surface cylindrical is inhomogeneous, cause rubber lining valve body wearing and tearing easily, sealability is unstable and descended to working life.
Summary of the invention
The purpose of this utility model is the problem that exists at prior art, and the contact-type rubber seal butterfly valve of a kind of sealability instability, long service life is provided.
The technological scheme that realizes the utility model purpose comprises valve body, valve rod, butterfly plate, transmission device and Sealing and assembling set, valve body is provided with the valve seat that cooperatively interacts and seal with the butterfly plate sealing surface, sealing surface of seat serves as a contrast rubber entirely, mainly is to adopt hexagonal hole to float between upper valve rod and lower valve rod and the butterfly plate to be connected.
The utility model beneficial effect compared with prior art is to have adopted hexagonal hole to float between butterfly plate and the valve rod to be connected, butterfly plate within the specific limits can free floating, realize automatic compensation function in the seal process, the seal pressure that reaches sealing surface is even, good seal performance, long product lifecycle.
Description of drawings
Fig. 1 is a structure sectional view of the present utility model.
Embodiment
Now further describe the technical solution of the utility model in conjunction with the accompanying drawings and embodiments.
Contact-type rubber seal butterfly valve as shown in Figure 1, comprise valve body 6, valve rod, butterfly plate 8, transmission device 13 and Sealing and assembling set, valve body 6 is provided with the valve seat that cooperatively interacts and seal with butterfly plate 8 sealing surfaces, sealing surface of seat serves as a contrast rubber entirely, adopt hexagonal hole to float between upper valve rod 9 and lower valve rod 5 and the butterfly plate 8 and be connected, butterfly plate 8 can be floated in valve rod axis direction certain limit.Butterfly plate 8 adopts the contact seal structure with sealing surface of seat, relies on butterfly plate 8 and rubber valve seat pressing to reach the sealing of valve, can be applicable to the elevated pressures operating mode, reduces the wearing and tearing that open and close moment and sealing surface.Rubber seal 7 on the valve seat adopts can shirk mounting structure, can pull down from valve seat, easy to maintenance.Rubber seal 7 both ends of the surface are shaped on conjuncted O type potted line 14 respectively, do not need the additional seal pad when making valve and piping erection.Be provided with divided ring 4 between lower valve rod 5 and the valve body 6, realize the location of lower valve rod 5, be provided with sealing gasket 2 between lower valve rod 5 and end cap 1, end cap 1 is fixedly mounted on the valve body by screw 3.Be provided with stuffing box packing 10 between upper valve rod 9 and the valve body 6.Transmission device 13 adopts the worm drive structure, is installed on the valve body 6 by bolt 11, pad 12.
Claims (5)
1, a kind of contact-type rubber seal butterfly valve, comprise valve body (6), valve rod, butterfly plate (8), transmission device (13) and Sealing and assembling set, valve body (6) is provided with the valve seat that cooperatively interacts and seal with butterfly plate (8) sealing surface, sealing surface of seat serves as a contrast rubber entirely, it is characterized in that adopting between upper valve rod (9) and lower valve rod (5) and the butterfly plate (8) hexagonal hole to float and is connected.
2, contact-type rubber seal butterfly valve according to claim 1 is characterized in that butterfly plate (8) and sealing surface of seat adopt the contact seal structure.
3, contact-type rubber seal butterfly valve according to claim 1 and 2 is characterized in that rubber seal (7) employing on the valve seat can be shirked mounting structure.
4, contact-type rubber seal butterfly valve according to claim 1 and 2 is characterized in that rubber seal (7) both ends of the surface are shaped on conjuncted O type potted line 14 respectively.
5, contact-type rubber seal butterfly valve according to claim 3 is characterized in that rubber seal (7) both ends of the surface are shaped on conjuncted O type potted line 14 respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420027617 CN2699074Y (en) | 2004-05-28 | 2004-05-28 | Contact rubber seal butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420027617 CN2699074Y (en) | 2004-05-28 | 2004-05-28 | Contact rubber seal butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2699074Y true CN2699074Y (en) | 2005-05-11 |
Family
ID=34771710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420027617 Expired - Fee Related CN2699074Y (en) | 2004-05-28 | 2004-05-28 | Contact rubber seal butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2699074Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335122A (en) * | 2013-07-17 | 2013-10-02 | 宁波华成阀门有限公司 | Threaded connection soft seal butterfly valve |
| CN106151550A (en) * | 2016-08-30 | 2016-11-23 | 盐城宝德冶金设备有限公司 | Raw coke oven gas pipeline shearing device |
| CN109058481A (en) * | 2018-09-26 | 2018-12-21 | 上海沪东造船阀门有限公司 | A kind of sealing ring and the sealing compensation type center butterfly valve that the sealing ring is set |
-
2004
- 2004-05-28 CN CN 200420027617 patent/CN2699074Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335122A (en) * | 2013-07-17 | 2013-10-02 | 宁波华成阀门有限公司 | Threaded connection soft seal butterfly valve |
| CN103335122B (en) * | 2013-07-17 | 2015-08-12 | 宁波华成阀门有限公司 | Be threaded soft sealing butterfly valve |
| CN106151550A (en) * | 2016-08-30 | 2016-11-23 | 盐城宝德冶金设备有限公司 | Raw coke oven gas pipeline shearing device |
| CN106151550B (en) * | 2016-08-30 | 2019-05-24 | 盐城宝德冶金设备有限公司 | Raw coke oven gas pipeline disconnecting device |
| CN109058481A (en) * | 2018-09-26 | 2018-12-21 | 上海沪东造船阀门有限公司 | A kind of sealing ring and the sealing compensation type center butterfly valve that the sealing ring is set |
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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 |