CN206347120U - A kind of three eccentricity hard seal butterfly valve - Google Patents
A kind of three eccentricity hard seal butterfly valve Download PDFInfo
- Publication number
- CN206347120U CN206347120U CN201621469097.1U CN201621469097U CN206347120U CN 206347120 U CN206347120 U CN 206347120U CN 201621469097 U CN201621469097 U CN 201621469097U CN 206347120 U CN206347120 U CN 206347120U
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- CN
- China
- Prior art keywords
- valve
- valve seat
- seat
- ring
- 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
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Abstract
A kind of three eccentricity hard seal butterfly valve, including valve body, running through in valve body has valve shaft, valve plate is provided with by straight pin on valve shaft, valve plate periphery is annular stepped, the outside of valve plate is fixed with trim ring by bolt assembly, scrobicular ring is formed between trim ring and annular stepped, sealing ring detachably is installed inside scrobicular ring, the inner circumferential of valve body is provided with circular step, valve seat is installed at circular step, the inner ring surface of valve seat is wedge-shaped sealing surface of seat, valve seat and sealing surface of seat are integrated, outside diameter of the valve seat close to valve shaft side is less than the outside diameter away from valve shaft, the valve seat pressure ring that valve seat is fixed is set outside valve seat, valve seat pressure ring is connected by screw with valve body.The utility model uses detachable valve body sealing surface, and sealing surface of seat and valve seat are integrated, and valve seat and valve body are removable, and sealing surface only changes valve seat after damaging；Detachable valve body sealing surface, it is possible to decrease difficulty of processing, reduces production cost, convenient maintenance.
Description
Technical field
The utility model is related to a kind of eccentric-butterfly-valve, more particularly to a kind of three eccentricity hard seal butterfly valve.
Background technology
Continuing to develop for city is also increasing to the demand of water resource, reduces water resource waste, using water wisely is each
The problem of individual city must all be solved.According to the statistics made by the departments concerned, city water resource wastes 70% and comes from pipe-line system valve matter
Amount problem is caused.Ditching today of city road, tomorrow break tripe, have been an obstacles of urban development, and the people are discontented with, and waste again
Man power and material.Therefore, from long lifespan, quality is good, easy repair and replacement valves, is not only running water enterprises problem,
It is also whole society's questions of common interest.
Utility model content
The utility model provides a kind of dismountable three eccentricity hard seal butterfly valve of sealing surface, to solve existing valve body and sealing
The problem of face is integrally technically present.
In order to solve the above technical problems, the utility model uses following technical scheme：
Run through to have in a kind of three eccentricity hard seal butterfly valve, including valve body 7, valve body 7 and pass through straight pin 10 on valve shaft 8, valve shaft 8
Valve plate 12 is installed, the periphery of valve plate 12 is annular stepped, and the outside of valve plate 12 is fixed with trim ring 11, trim ring 11 by bolt assembly
Formed between annular stepped inside scrobicular ring, scrobicular ring and sealing ring 15 detachably be installed, the inner circumferential of valve body 7 is provided with circular step,
Valve seat 28 is installed, the inner ring surface of valve seat 28 is the sealing surface of seat of wedge shape, and valve seat 28 and sealing surface of seat are at circular step
One, outside diameter of the valve seat 28 close to the side of valve shaft 8 is less than the outside diameter away from valve shaft 8, and the outside of valve seat 28 is set
The valve seat pressure ring 25 that valve seat 28 is fixed, valve seat pressure ring 25 is connected by screw 26 with valve body 7.
Valve seat 28 is connected by valve seat pressure ring 25 and screw 26 with valve body 7
The beneficial effects of the utility model：The utility model three eccentricity hard seal butterfly valve uses detachable valve seal
Face, sealing surface of seat and valve seat are integrated, and valve seat and valve body are removable, and sealing surface only changes valve seat after damaging；Detachable valve
Body sealing surface, it is possible to decrease difficulty of processing, reduces production cost, convenient maintenance.
Brief description of the drawings
Fig. 1 is valve body sectional view.
Fig. 2 is valve plate part connection diagram.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
The utility model, which provides to run through in a kind of three eccentricity hard seal butterfly valve, including valve body 7, valve body 7, valve shaft 8, valve shaft 8
Upper to be provided with valve plate 12 by straight pin 10, the periphery of valve plate 12 is annular stepped, and the outside of valve plate 12 is fixed by bolt assembly
There is trim ring 11, the bolt assembly includes bolt 13 and spring shim 14, is formed between trim ring 11 and annular stepped in scrobicular ring, scrobicular ring
Portion is detachably provided with sealing ring 15, and the inner circumferential of valve body 8, which is provided with circular step, circular step, is provided with valve seat 28, valve seat 28
Inner ring surface be the sealing surface of seat of wedge shape, valve seat and sealing surface of seat be integrated, and valve seat 28 is close to the cylindrical straight of the side of valve shaft 8
Footpath is less than the outside diameter away from valve shaft 8, and the outside of valve seat 28 sets the valve seat pressure ring 25 that valve seat 28 is fixed, valve seat pressure ring
25 are connected by screw 26 with valve body 7.Valve seat 28 is contacted with sealing ring 15, plays sealing function.
Above-mentioned valve seat 28 is dismountable, during dismounting, after screw 26 is screwed out, and can remove valve seat pressure ring 25, now,
Valve seat have no occluder is blocked, and due to the special wedge-type seal face structure of valve seat, can now be pulled down valve seat, carries out valve seat close
The replacing of front cover, reduces production and holds cost, and reduce difficulty of processing.
Valve seat pad 27, sealing ring 15 and valve plate 12 are provided between valve seat 28 and valve body 7, between valve seat and valve plate 12
Between be provided with sealing ring pad 9.Play sealing function.
In the utility model, valve body 7 is connected on support 2 by bolt assembly, and one of them is bolt assembly 3, another
Individual bolt assembly 3 includes Double-ended nut, spring shim, nut, bolt 23 and spring shim, is arranged on support 2, valve shaft 8
Top connects turbine box 1, and the bottom of valve body 7 is connected on bottom 19 by bolt assembly 21, and bolt assembly 21 includes bolt and bullet
Spring packing ring, valve shaft 8 is connected on bottom 19, and back-up ring 18 and divided ring 17 around valve shaft 8, valve shaft 8 are disposed with bottom 19
Self lubrication bearing 16, filler 6 are provided between valve body 7.The top of filler 6 sets gland 22.
Above-mentioned specialty is used for the special three eccentricity hard seal butterfly valve of Urban Buried Pipeline Network and water factory, and its close performance is with opening number
It is directly proportional.Sealing surface increases with opening times, more smooth after friction, and sealing property is more preferable.Service life is up to 30-50.
Above-described is only preferred embodiment of the present utility model, it is noted that for those skilled in the art
For, under the premise of the utility model general idea is not departed from, some changes and improvements can also be made, these should also be considered as
Protection domain of the present utility model.
Claims (2)
1. a kind of three eccentricity hard seal butterfly valve, including valve body（7）, valve body（7）It is interior through there is valve shaft（8）, valve shaft（8）It is upper to pass through circle
Pin（10）Valve plate is installed（12）, it is characterised in that：Valve plate（12）Periphery is annular stepped, valve plate（12）Outside pass through spiral shell
Bolt assembly is fixed with trim ring（11）, trim ring（11）Formed between annular stepped inside scrobicular ring, scrobicular ring and sealing detachably is installed
Circle（15）, valve body（7）Inner circumferential be provided with circular step, circular step valve seat be installed（28）, valve seat（28）Inner ring surface be
The sealing surface of seat of wedge shape, valve seat（28）It is integrated with sealing surface of seat, the valve seat（28）Close to valve shaft（8）Side it is cylindrical
Diameter is less than away from valve shaft（8）Outside diameter, valve seat（28）Outside is set to valve seat（28）The valve seat pressure ring being fixed
（25）, valve seat pressure ring（25）Pass through screw（26）With valve body（7）Connection.
2. a kind of three eccentricity hard seal butterfly valve according to claim 1, it is characterised in that：Valve seat（28）Pass through valve seat pressure ring
（25）And screw（26）With valve body（7）Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621469097.1U CN206347120U (en) | 2016-12-29 | 2016-12-29 | A kind of three eccentricity hard seal butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621469097.1U CN206347120U (en) | 2016-12-29 | 2016-12-29 | A kind of three eccentricity hard seal butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206347120U true CN206347120U (en) | 2017-07-21 |
Family
ID=59323630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621469097.1U Expired - Fee Related CN206347120U (en) | 2016-12-29 | 2016-12-29 | A kind of three eccentricity hard seal butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206347120U (en) |
-
2016
- 2016-12-29 CN CN201621469097.1U patent/CN206347120U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170721 Termination date: 20171229 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |