CN211231614U

CN211231614U - Improved generation side's pipe butterfly valve

Info

Publication number: CN211231614U
Application number: CN201922371744.5U
Authority: CN
Inventors: 谈军; 蔡灵杰; 黄永涛; 谈仁明
Original assignee: Wuxi Ganlu Valve Co ltd
Current assignee: Wuxi Ganlu Valve Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-08-11
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses an improved generation side's pipe 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, be provided with the closing plate that is used for covering the seal groove in the pivot, the rotation groove of ring structure is seted up at the top of surrounding edge, the bottom of closing plate is provided with the turning block that matches with the rotation groove, the turning block cooperation is at the rotation inslot. Compared with the prior art, the utility model, through the cooperation 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 to 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.

Description

Improved generation side's pipe butterfly valve

Technical Field

The utility model relates to a butterfly valve, concretely relates to improved generation side's pipe 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 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 an improved generation side's pipe 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, be provided with the closing plate that is used for covering the seal groove in the pivot, the rotating groove of ring structure is seted up at the top of surrounding edge, the bottom of closing plate is provided with the turning block that matches with the rotating groove, the turning block cooperation is at the rotating groove.

Further, the sealing plate is welded on the rotating shaft.

Further, the sealing plate is of a circular structure, and the rotating shaft penetrates through the circle center of the sealing plate.

Furthermore, an outer rubber wear-resistant layer and an inner rubber wear-resistant layer are respectively arranged on the outer annular wall and the inner annular wall in the rotating groove, so that the rotating block is good in wear resistance in the rotating groove, and the long-time use effect of the sealing plate is guaranteed.

Furthermore, the diameter of the sealing plate is larger than the groove diameter of the sealing groove, so that when the sealing plate covers the sealing groove, the periphery of the sealing plate can exceed the sealing groove outwards, the connecting edge of the sealing plate and the surrounding edge can be covered, and the sealing effect is improved.

Has the advantages that: compared with the prior art, the utility model, through the cooperation 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 to 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 top view of the butterfly valve;

figure 4 is a schematic view of a seal slot.

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 an improved square tube butterfly valve, which comprises a square tube valve body 1 and a sealing layer 2, the pivot 4, valve plate 3 and turning handle 5, use pivot 4 to be provided with the surrounding edge 7 of cylindrical structure as the center pin on the top surface of square tube valve body 1, surrounding edge 7 and square tube valve body 1 form seal groove 10, be provided with the closing plate 6 of circular structure on the pivot 4, closing plate 6 covers on seal groove 10, the diameter of closing plate 6 is greater than the groove diameter of seal groove 10, pivot 4 passes the closing plate 6 centre of a circle and welds with it, the rotation groove 71 of ring structure is seted up at the top of surrounding edge 7, the bottom of closing plate 6 is provided with and rotates groove 71 assorted turning block 61, turning block 61 just in time all cooperates in rotation groove 71, be provided with outer rubber wearing layer 8 and interior rubber wearing layer 9 on outer rampart in the rotation groove 71 and the interior rampart respectively.

Above-mentioned square pipe butterfly valve is when using, pivot 4 is when rotating, turning block 61 can follow closing plate 6 at rotation groove 71 internal rotation, make the rotation of pivot 4 can not destroy the leakproofness between closing plate 6 and the seal groove 10 like this, 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 bed, debris etc. contact pivot 4 and square pipe valve body 1's link department, the problem that original link department rusts very easily has been solved, the result of use of butterfly valve has been guaranteed, the life of butterfly valve has been prolonged.

Claims

1. The utility model provides an improved generation side's pipe butterfly valve, includes valve body, sealing layer, pivot and valve plate, its characterized in that: the rotary valve is characterized in that a surrounding edge of a cylindrical structure is arranged on the top surface of the valve body by taking the rotary shaft as a central shaft, the surrounding edge and the valve body form a sealing groove, a sealing plate used for covering the sealing groove is arranged on the rotary shaft, a rotary groove of a circular ring structure is formed in the top of the surrounding edge, a rotary block matched with the rotary groove is arranged at the bottom of the sealing plate, and the rotary block is matched in the rotary groove.

2. The improved square tube butterfly valve of claim 1, wherein: the sealing plate is welded on the rotating shaft.

3. The improved square tube butterfly valve of claim 1, wherein: the sealing plate is of a circular structure, and the rotating shaft penetrates through the circle center of the sealing plate.

4. The improved square tube butterfly valve of claim 1, wherein: and an outer rubber wear-resistant layer and an inner rubber wear-resistant layer are respectively arranged on the outer annular wall and the inner annular wall in the rotating groove.

5. The improved square tube butterfly valve of claim 3, wherein: the diameter of the sealing plate is larger than the groove diameter of the sealing groove.