CN207093796U - A kind of pneumatic rubber expansion butterfly valve - Google Patents
A kind of pneumatic rubber expansion butterfly valve Download PDFInfo
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- CN207093796U CN207093796U CN201721015404.3U CN201721015404U CN207093796U CN 207093796 U CN207093796 U CN 207093796U CN 201721015404 U CN201721015404 U CN 201721015404U CN 207093796 U CN207093796 U CN 207093796U
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- valve
- butterfly valve
- valve body
- expansion
- expansion butterfly
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Abstract
A kind of butterfly valve is the utility model is related to, more particularly to a kind of pneumatic rubber expansion butterfly valve.Its structure includes the butterfly valve plate being arranged in pipeline, described butterfly valve plate is provided with expansion butterfly valve valve body in both sides up and down, described expansion butterfly valve valve body both sides to folder flange by fixing, expansion butterfly valve valve body includes valve body body, hollow rubber swelling circle is provided with below described valve body body, admission line, described admission line connection source of the gas are provided with the middle part of described valve body body.A kind of pneumatic rubber expansion butterfly valve of the present utility model, it can reduce impact of the fluid media (medium) to valve, reduce the resistance for opening valve switch, improve the service efficiency of valve.
Description
Technical field
A kind of butterfly valve is the utility model is related to, more particularly to a kind of pneumatic rubber expansion butterfly valve.
Background technology
Under prior art, centre-pivoted butterfly valve is generally located in pipeline, by controlling the rotation of butterfly valve plate, is come in control pipeline
The flow velocity of medium, and sealed currently used for sealed butterfly valve plate and inner-walls of duct generally use rubber seal.
Rubber seal in conventional centre-pivoted butterfly valve is all real core, and it is in particular conduit medium, for example powdery is situated between
Matter, valve resistance ratios on or off are larger, particularly when pipeline powdery velocity of medium is big, medium to rubber ring and
Valve plate erosion corrosion is serious, causes the leakage of valve, influences normally to produce.
Particularly, conventional centre-pivoted butterfly valve has following deficiency：
1st, it is big to switch resistance.
2nd, valve plate has medium leakage when washing away vestige (sealing surface) defect poorly sealed.
3rd, the valve working cycle is short.
4th, replacing valve cost is high.
Utility model content
In order to solve problem of the prior art, the utility model provides a kind of pneumatic rubber expansion butterfly valve, and it can subtract
Few impact of the fluid media (medium) to valve, reduces the resistance for opening valve switch, improves the service efficiency of valve.
Technical scheme is as follows used by the utility model：
A kind of pneumatic rubber expansion butterfly valve, including the butterfly valve plate being arranged in pipeline, described butterfly valve plate are set both sides up and down
Expansion butterfly valve valve body is equipped with, by being fixed to folder flange, expansion butterfly valve valve body includes valve body for described expansion butterfly valve valve body both sides
Body, described valve body body lower section are provided with hollow rubber swelling circle, air inlet pipe are provided with the middle part of described valve body body
Road, described admission line connection source of the gas.
Rubber swelling circle is hemispherical, and its upper inner is provided with clamping lug boss, and described clamping lug boss is used to block
In the neck on the outside of the valve body body lower part.
Three-way magnetic valve is provided between admission line and source of the gas.
The beneficial effect that technical scheme provided by the utility model is brought is：
1st, the rubber seal of the real core of conventional butterfly valve is changed to hollow, the pneumatic tire of similar automobile.
2nd, one will be installed additional again on a two-position-five-way solenoid valve mounting bracket of the pneumatic actuator of original driving valve
Three-way magnetic valve is inflated for rubber seal.
3rd, rubber seal makes into be arranged on butterfly valve after hollow, controls three-way magnetic valve by integrated device or manually,
Reach sealing effectiveness to rubber seal inflation locking valve plate when butterfly valve is closed, adjustment three-way magnetic valve is put to rubber seal
Gas so that open valve plate after rubber seal retraction.
By the above, reduce the switch resistance of valve, even if valve plate and rubber ring also can by the erosion corrosion of medium
Reach seal standard, so as to improve the service efficiency of valve, extend maintenance cycle, preferably economic effect is brought to enterprise
Benefit.
Brief description of the drawings
, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present utility model
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is a kind of structural representation of pneumatic rubber expansion butterfly valve of the present utility model.
Embodiment
It is new to this practicality below in conjunction with accompanying drawing to make the purpose of this utility model, technical scheme and advantage clearer
Type embodiment is described in further detail.
Embodiment one
As shown in Figure 1, a kind of pneumatic rubber expansion butterfly valve of the present embodiment, including the butterfly valve plate being arranged in pipeline 1
2, described butterfly valve plate is provided with expansion butterfly valve valve body in both sides about 2, and described expansion butterfly valve valve body both sides pass through to pressing from both sides flange 3
Fixed, expansion butterfly valve valve body includes valve body body 4, and the described lower section of valve body body 4 is provided with hollow rubber swelling circle 5, institute
The middle part of valve body body 4 stated is provided with admission line 6, described admission line 6 connection source of the gas.
Rubber swelling circle 5 in the present embodiment is hemispherical, and its upper inner is provided with clamping lug boss 51, described card
Tight lug boss 51 is used for inlay card in the neck 41 of the lower outside of valve body body 4.
Three-way magnetic valve is provided between admission line 6 and source of the gas.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc., guarantor of the present utility model should be included in
Within the scope of shield.
Claims (3)
1. a kind of pneumatic rubber expansion butterfly valve, including the butterfly valve plate being arranged in pipeline, both sides are set described butterfly valve plate up and down
There is expansion butterfly valve valve body, described expansion butterfly valve valve body both sides to folder flange by fixing, it is characterised in that described expansion butterfly
Valve body includes valve body body, is provided with hollow rubber swelling circle below described valve body body, in described valve body body
Portion is provided with admission line, described admission line connection source of the gas.
2. a kind of pneumatic rubber expansion butterfly valve according to claim 1, it is characterised in that described rubber swelling circle is half
Spherical, its upper inner is provided with clamping lug boss, and described clamping lug boss is used for inlay card outside the valve body body lower part
In the neck of side.
A kind of 3. pneumatic rubber expansion butterfly valve according to claim 1, it is characterised in that described admission line and source of the gas
Between be provided with three-way magnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721015404.3U CN207093796U (en) | 2017-08-15 | 2017-08-15 | A kind of pneumatic rubber expansion butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721015404.3U CN207093796U (en) | 2017-08-15 | 2017-08-15 | A kind of pneumatic rubber expansion butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207093796U true CN207093796U (en) | 2018-03-13 |
Family
ID=61541537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721015404.3U Active CN207093796U (en) | 2017-08-15 | 2017-08-15 | A kind of pneumatic rubber expansion butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207093796U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566678A (en) * | 2019-08-23 | 2019-12-13 | 江苏盐电阀门有限公司 | Soft sealing butterfly valve with triangular ring structure |
-
2017
- 2017-08-15 CN CN201721015404.3U patent/CN207093796U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566678A (en) * | 2019-08-23 | 2019-12-13 | 江苏盐电阀门有限公司 | Soft sealing butterfly valve with triangular ring structure |
| CN110566678B (en) * | 2019-08-23 | 2021-02-02 | 江苏盐电阀门有限公司 | Soft sealing butterfly valve with triangular ring structure |
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| GR01 | Patent grant |