CN203868360U - Circular arc sealing three-eccentric center butterfly valve - Google Patents
Circular arc sealing three-eccentric center butterfly valve Download PDFInfo
- Publication number
- CN203868360U CN203868360U CN201420151527.XU CN201420151527U CN203868360U CN 203868360 U CN203868360 U CN 203868360U CN 201420151527 U CN201420151527 U CN 201420151527U CN 203868360 U CN203868360 U CN 203868360U
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- Prior art keywords
- sealing
- valve
- seal piece
- sealing surface
- valve plate
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- 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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- 238000007789 sealing Methods 0.000 title claims abstract description 124
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model discloses a circular arc sealing three-eccentric center butterfly valve which comprises a valve body. A valve cavity is formed inside the valve body, a protrusive sealing ring is arranged on the inner wall face of the valve cavity in an integrated mode, and a flat sealing face and an inclined sealing face are arranged on the protrusive sealing ring. A valve plate is arranged in the valve cavity, the parts, aligning with the flat sealing face and the inclined sealing face, of the edge of the valve plate are provided with a rectangular sealing block and an arc-shaped sealing block respectively, and two valve plate grooves are formed in the valve plate above the rectangular sealing block and the arc-shaped sealing block. A valve plate pressing block is detachably installed in each valve plate groove. A valve body groove is formed in the inner wall face, above the protrusive sealing ring, of the valve cavity, and a first auxiliary sealing block and a second auxiliary sealing block are detachably arranged in the valve body groove. The first sealing block is matched with the upper portion of the sealing face of the rectangular sealing block in a sealing mode, and the sealing face of the second auxiliary sealing block is matched with the upper portion of the sealing face of the arc-shaped sealing block in a sealing mode. According to the technical scheme, the structural design is reasonable, the service life of the valve body is long, and the using cost is low.
Description
Technical field
The utility model relates to valve technology field, is specifically related to a kind of circular arc sealing three eccentric butterfly valve.
Background technique
Valve body sealing surface and the valve body of existing butterfly valve are wholely set, structure arranges unreasonable, the valve plate valve body sealing surface that can wear and tear during long-time use, after being worn, valve body sealing surface will leak, cause valve body to be scrapped, the valve body life-span is short, needs to change new valve and just can normally use, and causes user cost high.
Summary of the invention
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of reasonable in design, valve body long service life, the circular arc sealing three eccentric butterfly valve that user cost is low.
For achieving the above object, the utility model provides following technological scheme: a kind of circular arc sealing three eccentric butterfly valve, comprise valve body, in valve body, be provided with valve pocket, on described valve pocket internal face, be wholely set sealing bulge loop, on described sealing bulge loop, be provided with smooth seal face and oblique sealing surface, in described valve pocket, be provided with valve plate, smooth seal face is aimed at described valve plate edge and oblique sealing surface is respectively arranged with rectangular seal piece and arc sealing block, sealing surface bottom and the smooth seal face of rectangular seal piece are sealed and matched, the sealing surface bottom of arc sealing block is sealed and matched with oblique sealing surface, on the valve plate of described rectangular seal piece and arc sealing block top, all offer a valve plate groove, a valve plate briquetting is detachably installed in valve plate groove described in each, rectangular seal piece and arc sealing block are all fixed by valve plate briquetting, on the valve pocket internal face of described sealing bulge loop top, offer valve body groove, in described valve body groove, be detachably provided with the first auxiliary seal piece and the second auxiliary seal piece, the first auxiliary seal piece coordinates with the sealing surface top seal of rectangular seal piece, and the sealing surface of described the second auxiliary seal piece coordinates with the sealing surface top seal of arc sealing block.
By adopting technique scheme, smooth seal face on valve body and rectangular seal piece can be realized face sealing, tiltedly sealing surface and arc sealing block can be realized linear sealing, and on valve body, be also detachably provided with the first auxiliary seal piece and the second auxiliary seal piece, reach double seal effect, and the first auxiliary seal piece and the second auxiliary seal piece can change, structure arranges rationally, valve body long service life, user cost is low.
The utility model is further set to: between described rectangular seal piece and the valve plate wall of arc sealing block and below, be at least provided with a rubber seal.By this setting, rubber seal arranges rationally, and valve plate sealability is better, is difficult for leaking.
The utility model is also further set to: the sealing surface of described the first auxiliary seal piece is plane, and the sealing surface of the first auxiliary seal piece aligns with smooth seal face; The sealing surface of described the second auxiliary seal piece is inclined-plane, and the sealing surface of the second auxiliary seal piece aligns with oblique sealing surface.By this setting, the first auxiliary seal piece and the second auxiliary seal piece sealability are better, are difficult for leaking.
The utility model is also further set to: described the first auxiliary seal piece and the second auxiliary seal piece middle part are all at least equipped with first set screw, and described the first auxiliary seal piece and the second auxiliary seal piece are all connected and fixed by the first set screw and valve body.By this setting, the first auxiliary seal piece and the second auxiliary seal are packaged to be torn open conveniently, fixing reliable.
The utility model is also further set to: described rectangular seal piece and arc sealing block middle part are all at least provided with second set screw, and rectangular seal piece and arc sealing block are all connected and fixed by the second set screw and valve plate.By this setting, rectangular seal piece and the mounting or dismounting of arc sealing block are convenient, fixing reliable.
The utility model has the advantages that: compared with prior art, the utility model structure arranges rationally, smooth seal face on valve body and rectangular seal piece can be realized face sealing, tiltedly sealing surface and arc sealing block can be realized linear sealing, and on valve body, are also detachably provided with the first auxiliary seal piece and the second auxiliary seal piece, reach double seal effect, and the first auxiliary seal piece and the second auxiliary seal piece can be changed, structure arranges rationally, valve body long service life, and user cost is low.
Below in conjunction with Figure of description and specific embodiment, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment's structural representation.
Embodiment
Referring to Fig. 1, the disclosed a kind of circular arc sealing three eccentric butterfly valve of the utility model, comprise valve body 1, in valve body 1, be provided with valve pocket 11, on described valve pocket 11 internal faces, be wholely set sealing bulge loop 12, on described sealing bulge loop 12, be provided with smooth seal face 121 and oblique sealing surface 122, in described valve pocket 11, be provided with valve plate 2, smooth seal face 121 is aimed at described valve plate 2 edges and oblique sealing surface 122 is respectively arranged with rectangular seal piece 3 and arc sealing block 4, sealing surface bottom and the smooth seal face 121 of rectangular seal piece 3 are sealed and matched, the sealing surface bottom of arc sealing block 4 is sealed and matched with oblique sealing surface 122, on the valve plate 2 of described rectangular seal piece 3 and arc sealing block 4 tops, all offer a valve plate groove 21, described in each, valve plate groove 21 is interior is detachably provided with a valve plate briquetting 5, rectangular seal piece 3 and arc sealing block 4 are all fixed by valve plate briquetting 5, on valve pocket 11 internal faces of described sealing bulge loop 12 tops, offer valve body groove 111, interior the first auxiliary seal piece 6 and the second auxiliary seal piece 7 of being detachably provided with of described valve body groove 111, the first auxiliary seal piece 6 coordinates with the sealing surface top seal of rectangular seal piece 3, and the sealing surface of described the second auxiliary seal piece 7 coordinates with the sealing surface top seal of arc sealing block 4.
For making the utility model sealability better, as preferably, between rectangular seal piece 3 and valve plate 2 walls of arc sealing block 4 and below, be at least provided with a rubber seal 8 described in the present embodiment.The sealing surface of described the first auxiliary seal piece 6 is plane, and the sealing surface of the first auxiliary seal piece 6 aligns with smooth seal face 121; The sealing surface of described the second auxiliary seal piece 7 is inclined-plane, and the sealing surface of the second auxiliary seal piece 7 aligns with oblique sealing surface 122.
For making the utility model mounting or dismounting convenient, as preferably, described in the present embodiment, the first auxiliary seal piece 6 and the second auxiliary seal piece 7 middle parts are all at least equipped with first set screw 9, and described the first auxiliary seal piece 6 and the second auxiliary seal piece 7 are all connected and fixed with valve body 1 by the first set screw 9.
Described rectangular seal piece 3 and arc sealing block 4 middle parts are all at least provided with second set screw 10, and rectangular seal piece 3 and arc sealing block 4 are all connected and fixed with valve plate 2 by the second set screw 10.
The utility model structure arranges rationally, smooth seal face on valve body and rectangular seal piece can be realized face sealing, tiltedly sealing surface and arc sealing block can be realized linear sealing, and on valve body, be also detachably provided with the first auxiliary seal piece and the second auxiliary seal piece, reach double seal effect, and the first auxiliary seal piece and the second auxiliary seal piece can change, structure arranges rationally, valve body long service life, user cost is low.In addition, utilize the designed arc-shaped appearance of sealing surface, realize linear sealing, sealing can reach zero leakage; Replaceable valve plate and valve body part sealing surface, the working life of at utmost improving valve body; Sealing seat partly can be mass, and enhances productivity.
Above-described embodiment is to specific descriptions of the present utility model; only for the utility model is further described; can not be interpreted as the restriction to the utility model protection domain, within the technician of related domain makes some nonessential improvement according to the content of above-mentioned model utility to the utility model and adjusts and all to fall into protection domain of the present utility model.
Claims (5)
1. a circular arc seals three eccentric butterfly valve, comprise valve body (1), in valve body (1), be provided with valve pocket (11), it is characterized in that: on described valve pocket (11) internal face, be wholely set sealing bulge loop (12), on described sealing bulge loop (12), be provided with smooth seal face (121) and oblique sealing surface (122), in described valve pocket (11), be provided with valve plate (2), smooth seal face (121) is aimed at described valve plate (2) edge and oblique sealing surface (122) is respectively arranged with rectangular seal piece (3) and arc sealing block (4), the sealing surface bottom of rectangular seal piece (3) and smooth seal face (121) are sealed and matched, the sealing surface bottom of arc sealing block (4) is sealed and matched with oblique sealing surface (122), on the valve plate (2) of described rectangular seal piece (3) and arc sealing block (4) top, all offer a valve plate groove (21), a valve plate briquetting (5) is detachably installed in valve plate groove (21) described in each, rectangular seal piece (3) and arc sealing block (4) are all fixed by valve plate briquetting (5), on valve pocket (11) internal face of described sealing bulge loop (12) top, offer valve body groove (111), in described valve body groove (111), be detachably provided with the first auxiliary seal piece (6) and the second auxiliary seal piece (7), the first auxiliary seal piece (6) coordinates with the sealing surface top seal of rectangular seal piece (3), and the sealing surface of described the second auxiliary seal piece (7) coordinates with the sealing surface top seal of arc sealing block (4).
2. a kind of circular arc sealing three eccentric butterfly valve according to claim 1, is characterized in that: between valve plate (2) wall of described rectangular seal piece (3) and arc sealing block (4) and below, be at least provided with a rubber seal (8).
3. a kind of circular arc sealing three eccentric butterfly valve according to claim 2, it is characterized in that: the sealing surface of described the first auxiliary seal piece (6) is plane, and the sealing surface of the first auxiliary seal piece (6) aligns with smooth seal face (121); The sealing surface of described the second auxiliary seal piece (7) is inclined-plane, and the sealing surface of the second auxiliary seal piece (7) aligns with oblique sealing surface (122).
4. a kind of circular arc according to claim 3 seals three eccentric butterfly valve, it is characterized in that: described the first auxiliary seal piece (6) and the second auxiliary seal piece (7) middle part are all at least equipped with first set screw (9), and described the first auxiliary seal piece (6) and the second auxiliary seal piece (7) are all connected and fixed by the first set screw (9) and valve body (1).
5. a kind of circular arc according to claim 4 seals three eccentric butterfly valve, it is characterized in that: described rectangular seal (3) piece and arc sealing block (4) middle part are all at least provided with second set screw (10), and rectangular seal piece (3) and arc sealing block (4) are all connected and fixed by the second set screw (10) and valve plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420151527.XU CN203868360U (en) | 2014-03-31 | 2014-03-31 | Circular arc sealing three-eccentric center butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420151527.XU CN203868360U (en) | 2014-03-31 | 2014-03-31 | Circular arc sealing three-eccentric center butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203868360U true CN203868360U (en) | 2014-10-08 |
Family
ID=51649315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420151527.XU Expired - Fee Related CN203868360U (en) | 2014-03-31 | 2014-03-31 | Circular arc sealing three-eccentric center butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203868360U (en) |
-
2014
- 2014-03-31 CN CN201420151527.XU patent/CN203868360U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 Termination date: 20180331 |