CN211449685U - Butterfly valve with sealing structure - Google Patents
Butterfly valve with sealing structure Download PDFInfo
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- CN211449685U CN211449685U CN201922371682.8U CN201922371682U CN211449685U CN 211449685 U CN211449685 U CN 211449685U CN 201922371682 U CN201922371682 U CN 201922371682U CN 211449685 U CN211449685 U CN 211449685U
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- pivot
- sealing
- valve body
- butterfly valve
- valve
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Abstract
The utility model discloses a butterfly valve that possesses seal structure, including valve body, sealing layer, pivot and valve plate, use the pivot to be provided with the surrounding edge of cylindrical structure as the center pin on the top surface of valve body, surrounding edge and valve body form the seal groove, cup joint the fixed closing plate that is provided with circular structure in the pivot, be provided with on the inside wall of surrounding edge with closing plate assorted rotation groove, the outer end cooperation of closing plate is at the rotation inslot. Compared with the prior art, the utility model, through the setting of seal groove and closing plate, under the circumstances of guaranteeing pivot normal use, the sealed chamber that seal groove and closing plate formed can carry out fine sealing to the linking department of pivot and valve body to prevented that external rainwater, air, debris etc. from entering into and contacting linking department, solved original linking department rusty problem very easily, guaranteed the result of use of butterfly valve, prolonged the life of butterfly valve.
Description
Technical Field
The utility model relates to a butterfly valve, concretely relates to square pipe butterfly valve who possesses seal structure.
Background
The butterfly valve is a common fluid valve, as shown in fig. 1, the butterfly valve comprises a valve body 1, a sealing layer 2, a rotating shaft 4, a valve plate 3 and a rotating handle 5, the rotating shaft 4 drives the valve plate 3 to rotate in the valve body 1, and the opening and closing of a flow channel in the valve body 1 are realized, but the butterfly valve with the structure is smooth in rotation of the rotating shaft 4, a certain gap must be reserved between the rotating shaft 4 and the valve body 1, and along with the long-term use of the rotating shaft 4, the gaps can be gradually increased, so that external rainwater can be caused, air can easily contact the gap between the rotating shaft 4 and the valve body 1, the time is long, the rusting condition is very easy to occur, the normal use of the rotating shaft 4 is seriously affected, and the use effect and the service life of.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the square tube butterfly valve capable of ensuring high sealing property between the valve body and the rotating shaft is provided.
The technical scheme is as follows: in order to achieve the above object, the utility model provides a butterfly valve that possesses seal structure, including valve body, sealing layer, pivot and valve plate, use the pivot to be provided with the surrounding edge of cylindrical structure as the center pin on the top surface of valve body, surrounding edge and valve body form the seal groove, cup joint the fixed closing plate that is provided with circular structure in the pivot, be provided with on the inside wall of surrounding edge with closing plate assorted rotation groove, the outer end cooperation of closing plate is at the rotation inslot.
Furthermore, the sealing plate is welded on the rotating shaft, so that the sealing plate is well fixed on the rotating shaft.
Furthermore, the sealing rings are arranged at the upper end and the lower end of the rotating groove on the inner side wall of the surrounding edge, and the sealing rings enable the sealing plates and the surrounding edge to have better sealing performance.
Furthermore, the surface of the sealing plate is provided with a rubber wear-resistant layer, so that the friction force between the sealing plate and the rotating groove during rotation is reduced, and the service life of the sealing plate is prolonged.
Furthermore, a gap is formed between the sealing plate and the bottom of the rotating groove, so that contact friction between the sealing plate and the bottom of the rotating groove is avoided.
Has the advantages that: compared with the prior art, the utility model, through the setting of seal groove and closing plate, under the circumstances of guaranteeing pivot normal use, the sealed chamber that seal groove and closing plate formed can carry out fine sealing to the linking department of pivot and valve body to prevented that external rainwater, air, debris etc. from entering into and contacting linking department, solved original linking department rusty problem very easily, guaranteed the result of use of butterfly valve, prolonged the life of butterfly valve.
Drawings
FIG. 1 is a schematic diagram of a conventional butterfly valve;
FIG. 2 is a schematic structural view of a butterfly valve according to the present invention;
FIG. 3 is a schematic view of a partial structural connection between the seal plate and the skirt;
fig. 4 is a top view of the valve body.
Detailed Description
The present invention will be further clarified by the following description with reference to the attached drawings and specific examples, which should be understood as being merely illustrative of the present invention and not limiting the scope of the present invention, and modifications of various equivalent forms of the present invention by those skilled in the art after reading the present invention, all fall within the scope defined by the appended claims of the present application.
As shown in fig. 1-4, the utility model provides a square pipe butterfly valve who possesses seal structure, including square pipe valve body 1, sealing layer 2, pivot 4, valve plate 3 and turning handle 5, use pivot 4 to be provided with the surrounding edge 6 of cylindrical structure as the center pin on square pipe valve body 1's the top surface, surrounding edge 6 and square pipe valve body 1 form seal groove 10, pivot 4 passes the center of closing plate 7 of circular structure, closing plate 7 welds on pivot 4, the surface of closing plate 7 is provided with rubber wearing layer 71, be provided with on the inside wall of surrounding edge 6 with closing plate 7 assorted rotating chute 61, the outer end cooperation of closing plate 7 is in rotating chute 61, and do not stretch into the tank bottom of rotating chute 61, the upper and lower extreme that lies in rotating chute 61 on the inside wall of surrounding edge 6 all is provided with sealing washer 8.
Above-mentioned square pipe butterfly valve is when using, pivot 4 is when rotating, closing plate 7 can rotate along rotating groove 61, leakproofness between closing plate 7 and the surrounding edge 6 can not change like this, make the rotation of pivot 4 can not destroy the leakproofness between closing plate 7 and the seal groove 10, thereby make pivot 4 that is located the seal groove 10 and square pipe valve body 1's link department keep high leakproofness, can effectively prevent external rainwater, the air, the ash layer, debris etc. contact pivot 4 and square pipe valve body 1's link department, the problem of original link department rusty very easily has been solved, the result of use of butterfly valve has been guaranteed, the life of butterfly valve has been prolonged.
Claims (5)
1. The utility model provides a butterfly valve that possesses seal structure, includes valve body, sealing layer, pivot and valve plate, its characterized in that: the valve is characterized in that the top surface of the valve body is provided with a surrounding edge of a cylindrical structure by taking a rotating shaft as a central shaft, the surrounding edge and the valve body form a sealing groove, the rotating shaft is fixedly sleeved with a sealing plate of a circular structure, a rotating groove matched with the sealing plate is formed in the inner side wall of the surrounding edge, and the outer end of the sealing plate is matched in the rotating groove.
2. The butterfly valve with a sealing structure according to claim 1, wherein: the sealing plate is welded on the rotating shaft.
3. The butterfly valve with a sealing structure according to claim 1, wherein: and sealing rings are arranged at the upper end and the lower end of the rotating groove on the inner side wall of the surrounding edge.
4. The butterfly valve with a sealing structure according to claim 1, wherein: the surface of the sealing plate is provided with a rubber wear-resistant layer.
5. The butterfly valve with a sealing structure according to claim 1 or 4, wherein: a gap is formed between the sealing plate and the bottom of the rotating groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922371682.8U CN211449685U (en) | 2019-12-26 | 2019-12-26 | Butterfly valve with sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922371682.8U CN211449685U (en) | 2019-12-26 | 2019-12-26 | Butterfly valve with sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211449685U true CN211449685U (en) | 2020-09-08 |
Family
ID=72318721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922371682.8U Active CN211449685U (en) | 2019-12-26 | 2019-12-26 | Butterfly valve with sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211449685U (en) |
-
2019
- 2019-12-26 CN CN201922371682.8U patent/CN211449685U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |