CN211231620U - Follow-up sealing butterfly valve - Google Patents
Follow-up sealing butterfly valve Download PDFInfo
- Publication number
- CN211231620U CN211231620U CN201922371728.6U CN201922371728U CN211231620U CN 211231620 U CN211231620 U CN 211231620U CN 201922371728 U CN201922371728 U CN 201922371728U CN 211231620 U CN211231620 U CN 211231620U
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- surrounding edge
- butterfly valve
- pivot
- valve body
- closing plate
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Abstract
The utility model discloses a follow-up leakproofness butterfly valve, 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 two outstanding pieces of ring on the inside wall of surrounding edge, two outstanding pieces of ring and surrounding edge form and closing plate assorted rotation groove, and the outside cooperation of closing plate still is provided with the sealing member on the inside wall of surrounding edge at the rotation inslot, has seted up the seal groove on the top surface of closing plate. The utility model discloses possess double seal structure to under the circumstances of guaranteeing pivot normal use, can carry out fine sealing in linking department of countershaft and valve body, thereby prevented that external rainwater, air, debris etc. from entering into and contacting linking department, solved the very easy rusty problem of original linking department, 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 follow-up leakproofness butterfly valve.
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 follow-up sealing square tube butterfly valve capable of ensuring high sealing between the valve body and the rotating shaft is provided.
The technical scheme is as follows: in order to realize the above-mentioned purpose, the utility model provides a follow-up leakproofness butterfly valve, 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 the protruding piece of two rings on the inside wall of surrounding edge, two protruding pieces of rings and surrounding edge formation and closing plate assorted rotation groove, the outside cooperation of closing plate is at the rotation inslot, still be provided with the sealing member on the inside wall of surrounding edge, the seal groove has been seted up on the top surface of closing plate, the one end of sealing member is fixed on the surrounding edge, and the other end cooperation is in the seal.
Further, the sealing plate is welded on the rotating shaft.
Further, the sealing member includes a transverse portion and a longitudinal portion perpendicular to each other, and a bottom end of the longitudinal portion is fitted in the sealing groove.
Further, the longitudinal part is welded with the annular protruding block positioned above.
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, the cooperation of closing plate and rotation groove and the cooperation setting of sealing member and closing plate for the seal groove possesses double seal structure, thereby under the circumstances of guaranteeing pivot normal use, can carry out fine sealing to the linking department of pivot and valve body, thereby prevented that external rainwater, air, debris etc. from getting into contact with 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 figures 1-4, the utility model provides a follow-up sealing nature side pipe butterfly valve, including square pipe valve body 1, sealing layer 2, pivot 4, valve plate 3 and turning handle 5, the top surface of square pipe valve body 1 is provided with surrounding edge 6 of cylindrical structure using pivot 4 as the center axis, surrounding edge 6 and square pipe valve body 1 form seal groove 10, pivot 4 passes through the center of the sealing plate 7 of circular structure, sealing plate 7 is welded on pivot 4, there are two ring salient blocks 9 on the inside wall of surrounding edge 6, two ring salient blocks 9 and surrounding edge 6 form a rotating groove 91 matching with sealing plate 7, the outside of sealing plate 7 fits in rotating groove 91 and has a gap with the bottom of rotating groove 91, sealing member 8 is also provided on the inside wall of surrounding edge 6 above rotating groove 91, sealing member 8 includes transverse part 81 and longitudinal part 82 that are perpendicular to each other, seal groove 71 of circular ring type structure is provided on the top surface of sealing plate 7, the transverse portion 81 is welded to the inner side wall of the skirt 6, the bottom of the longitudinal portion 82 fits exactly into the sealing groove 71, and the longitudinal portion 82 is welded to the annular projection 9 located above.
When the square tube butterfly valve is used, the sealing plate 7 rotates along the rotating groove 91 when the rotating shaft 4 rotates, and the sealing groove 71 of the sealing plate 7 will rotate along with the longitudinal part 82, so that the rotating shaft 4 has two sealing structures of the longitudinal part 82 and the sealing groove 71 and the sealing plate 7 and the rotating groove 91 when rotating normally, and the sealing performance cannot be changed due to the rotation of the sealing plate 7, so that the rotation of the rotating shaft 4 cannot damage the sealing performance between the sealing plate 7 and the sealing groove 10, thereby make pivot 4 that is located seal groove 10 and square tube valve body 1's link department keep high leakproofness, can effectively prevent external rainwater, air, ash layer, debris etc. to contact pivot 4 and square tube valve body 1's link department, solved original link department rusty problem very easily, guaranteed the result of use of butterfly valve, prolonged the life of butterfly valve.
Claims (5)
1. The utility model provides a follow-up leakproofness butterfly valve, includes valve body, sealing layer, pivot and valve plate, its characterized in that: 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 two protruding pieces of ring on the inside wall of surrounding edge, two protruding pieces of ring and surrounding edge form and closing plate assorted rotation groove, the outside cooperation of closing plate is in the rotation inslot, still be provided with the sealing member on the inside wall of surrounding edge, the seal groove has been seted up on the top surface of closing plate, the one end of sealing member is fixed on the surrounding edge, and the other end cooperation is in the seal groove.
2. A servo-actuated butterfly valve according to claim 1, characterised in that: the sealing plate is welded on the rotating shaft.
3. A servo-actuated butterfly valve according to claim 1, characterised in that: the seal includes a transverse portion and a longitudinal portion perpendicular to each other, the bottom end of the longitudinal portion fitting within the seal groove.
4. A servo-actuated butterfly valve according to claim 3, characterised in that: the longitudinal part is welded with the annular protruding block positioned above.
5. A servo-actuated butterfly valve according to claim 1, characterised in that: 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 |
|---|---|---|---|
| CN201922371728.6U CN211231620U (en) | 2019-12-26 | 2019-12-26 | Follow-up sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922371728.6U CN211231620U (en) | 2019-12-26 | 2019-12-26 | Follow-up sealing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211231620U true CN211231620U (en) | 2020-08-11 |
Family
ID=71931268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922371728.6U Active CN211231620U (en) | 2019-12-26 | 2019-12-26 | Follow-up sealing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211231620U (en) |
-
2019
- 2019-12-26 CN CN201922371728.6U patent/CN211231620U/en active Active
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| GR01 | Patent grant | ||
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