CN201461990U - Eccentric soft sealing butterfly valve - Google Patents
Eccentric soft sealing butterfly valve Download PDFInfo
- Publication number
- CN201461990U CN201461990U CN2009200733435U CN200920073343U CN201461990U CN 201461990 U CN201461990 U CN 201461990U CN 2009200733435 U CN2009200733435 U CN 2009200733435U CN 200920073343 U CN200920073343 U CN 200920073343U CN 201461990 U CN201461990 U CN 201461990U
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Abstract
The utility model discloses an eccentric soft sealing butterfly valve, which comprises a valve body, a sealing ring and a butterfly plate, wherein a dovetail groove is used for installing the sealing ring is arranged on the valve body, the sealing ring is provided with the saw tooth-shaped outer surface and a V-shaped opening, the saw tooth-shaped outer surface is matched with the butterfly plate for forming a sealing pair, and the outer edge of the V-shaped opening and the dovetail groove of the valve body are in interference fit. The sealing ring of the utility model can be uniformly pasted on the sealing surface of the butterfly plate through being pushed by the glue filling pressure for forming reliable sealing.
Description
Technical field
The utility model relates to a kind of butterfly valve, particularly a kind of eccentric soft sealing butterfly valve.
Background technique
Eccentric soft sealing butterfly valve is simple in structure lower with the manufacturing technology level requirement according to it, in present general industry normal temperature low pressure line, still adopts in a large number in the urban water supply pipeline network construction especially.But existing eccentric soft sealing butterfly valve generally adopts pressing plate and butterfly plate or valve body to clamp the form of moulding rubber seal, and the rationality of its sealability and structure all has obvious defects and deficiency, and the cost of production height.
The model utility content
The technical problems to be solved in the utility model is in order to overcome the defective of prior art, a kind of eccentric soft sealing butterfly valve to be provided, and its seal ring butterfly plate sealing surface of fitting equably under the promotion of injecting glue pressure forms reliable sealing.
The utility model solves above-mentioned technical problem by following technical proposals: a kind of eccentric soft sealing butterfly valve, it is characterized in that, it comprises valve body, seal ring and butterfly plate, valve body is provided with installs the dovetail groove that seal ring is used, seal ring has zigzag outer surface and V-arrangement opening, zigzag outer surface cooperates formation sealing pair, the dovetail groove interference fit of the outward edge of V-arrangement opening and valve body with butterfly plate.
Preferably, described seal ring forming V-shape shape.
Preferably, described seal ring is fixed in the dovetail groove on the valve body.
Positive progressive effect of the present utility model is:
A, the utility model effectively compensate the deviation that (particularly rubber seal) produces in the part manufacture process.
Rubber seal in B, the utility model butterfly plate sealing surface of fitting equably under the promotion of injecting glue pressure forms reliable sealing.
The excessive sealing that C, the utility model avoid pressure plate structure to produce has improved working life.
D, the utility model have reduced the operation moment of torsion.
The resin glue that E, the utility model adopt pressure to inject can stop any leakage possibility of valve seat insert fully.
F, the utility model support from inner formation of seal ring with the resin skeleton that the glue solidifies forms, and have improved the bearing capacity of rubber seal.
Description of drawings
Fig. 1 is the utility model one embodiment's a structural representation.
Fig. 2 is the structural representation of seal ring section in the utility model.
Fig. 3 is the schematic representation behind the injection high-pressure resin glue in the seal ring of the present utility model.
Embodiment
Lift a preferred embodiment below, and come the clearer the utility model that intactly illustrates in conjunction with the accompanying drawings.
As shown in Figure 1, eccentric soft sealing butterfly valve of the present utility model comprises valve body 1, seal ring 2, butterfly plate 3, lower valve rod 4, upper valve rod 5, bearing 6, filler 7 and support 8 etc.; Seal ring 2 adopts the rubber materials, and is fixed in the dovetail groove on the valve body 1 with the pressurising resin glue; Lower valve rod 4 and upper valve rod 5 are symmetrical arranged about the center of eccentric soft sealing butterfly valve, and lower valve rod 4 and upper valve rod 5 are used for supporting location butterfly plate 3, and 4 of lower valve rods support positioning action, and 5 of upper valve rods support and transmit the operation torsional interaction; Lower valve rod 4 and upper valve rod 5 are installed bearing 6 respectively, support force is carried out the transition on the valve body 1, and guarantee to rotate flexibly; Filler 7 is realized upper valve rod 5 reliable sealings; Support 8 is used for connecting the opening and closing of drive unit with operated valve.
The structure of seal ring 2 as shown in Figure 2, seal ring 2 forming V-shape shapes, seal ring 2 has zigzag outer surface, zigzag outer surface cooperates with butterfly plate 3 and constitutes sealing pair.Seal ring 2 be hollow and have a V-arrangement opening, valve body 1 is provided with installs the dovetail groove that seal ring is used, the dovetail groove interference fit on the outward edge of V-arrangement opening and the valve body 1, the formation enclosed cavity is so that injecting glue.Seal ring 2 intermediate flange are made zigzag fashion, when butterfly plate 3 is closed, seal ring 2 is multi-sealed with three to five layers of butterfly plate sealing surface formation, and close in the process that realizes sealing at butterfly plate 3, a small amount of silt particle retains in the root of sawtooth, avoid sandstone that seal ring 2 is caused scuffing, be specially adapted to medium transport uses such as seawater.Seal ring 2 is fixed in the dovetail groove on the valve body 1, has greatly reduced medium seal ring 2 is washed away the damage that causes, and has improved working life.
As shown in Figure 3, the seal ring 2 of hollow be positioned over valve body 1 dovetail poor in and block, form enclosed cavity, press butterfly valve seat injecting glue rules then and in enclosed cavity, inject high-pressure resin glue, treat that resin glue solidifies the back and forms firm support frame 9, it is even to guarantee that like this seal ring 2 encloses decrement around when butterfly plate 3 is closed, and forms reliable sealing and also effectively reduces the operation moment of torsion.
Though more than described embodiment of the present utility model, but those skilled in the art is to be understood that, these only illustrate, and under the prerequisite that does not deviate from principle of the present utility model and essence, can make numerous variations or modification to these mode of executions.Therefore, protection domain of the present utility model is limited by appended claims.
Claims (3)
1. eccentric soft sealing butterfly valve, it is characterized in that, it comprises valve body, seal ring and butterfly plate, valve body is provided with installs the dovetail groove that seal ring is used, seal ring has zigzag outer surface and V-arrangement opening, zigzag outer surface cooperates formation sealing pair, the dovetail groove interference fit of the outward edge of V-arrangement opening and valve body with butterfly plate.
2. eccentric soft sealing butterfly valve as claimed in claim 1 is characterized in that, described seal ring forming V-shape shape.
3. eccentric soft sealing butterfly valve as claimed in claim 1 is characterized in that, described seal ring is fixed in the dovetail groove on the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200733435U CN201461990U (en) | 2009-06-03 | 2009-06-03 | Eccentric soft sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200733435U CN201461990U (en) | 2009-06-03 | 2009-06-03 | Eccentric soft sealing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201461990U true CN201461990U (en) | 2010-05-12 |
Family
ID=42389343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200733435U Expired - Fee Related CN201461990U (en) | 2009-06-03 | 2009-06-03 | Eccentric soft sealing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201461990U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865296A (en) * | 2010-06-13 | 2010-10-20 | 无锡智能自控工程有限公司 | Butterfly valve with U-shaped sealing ring |
| CN102678948A (en) * | 2012-06-11 | 2012-09-19 | 格朗富（苏州）集团有限公司 | Butterfly valve |
| CN102691802A (en) * | 2012-06-11 | 2012-09-26 | 格朗富（苏州）集团有限公司 | Processing method of butterfly valve sealing mechanism |
| CN102691801A (en) * | 2012-06-11 | 2012-09-26 | 格朗富（苏州）集团有限公司 | Method for maintaining butterfly valve sealing mechanism on line |
| CN105134977A (en) * | 2015-09-28 | 2015-12-09 | 苏州洛特兰新材料科技有限公司 | Butterfly valve for desulfuration |
| CN109533978A (en) * | 2018-11-15 | 2019-03-29 | 江苏科技大学 | Air pressure automatic compensation type rotatory sealing discharge valve |
| CN110259961A (en) * | 2018-03-12 | 2019-09-20 | 中核苏阀科技实业股份有限公司 | A kind of three eccentricity hard seal butterfly valve all-metal V-arrangement elastic sealing structure |
-
2009
- 2009-06-03 CN CN2009200733435U patent/CN201461990U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865296A (en) * | 2010-06-13 | 2010-10-20 | 无锡智能自控工程有限公司 | Butterfly valve with U-shaped sealing ring |
| CN102678948A (en) * | 2012-06-11 | 2012-09-19 | 格朗富（苏州）集团有限公司 | Butterfly valve |
| CN102691802A (en) * | 2012-06-11 | 2012-09-26 | 格朗富（苏州）集团有限公司 | Processing method of butterfly valve sealing mechanism |
| CN102691801A (en) * | 2012-06-11 | 2012-09-26 | 格朗富（苏州）集团有限公司 | Method for maintaining butterfly valve sealing mechanism on line |
| CN105134977A (en) * | 2015-09-28 | 2015-12-09 | 苏州洛特兰新材料科技有限公司 | Butterfly valve for desulfuration |
| CN110259961A (en) * | 2018-03-12 | 2019-09-20 | 中核苏阀科技实业股份有限公司 | A kind of three eccentricity hard seal butterfly valve all-metal V-arrangement elastic sealing structure |
| CN109533978A (en) * | 2018-11-15 | 2019-03-29 | 江苏科技大学 | Air pressure automatic compensation type rotatory sealing discharge valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20110603 |