CN210890148U

CN210890148U - Butterfly valve with good sealing performance

Info

Publication number: CN210890148U
Application number: CN201921723732.8U
Authority: CN
Inventors: 高宁
Original assignee: Shanghai Tao Pu Laboratory Equipment Co ltd
Current assignee: Shanghai Tao Pu Laboratory Equipment Co ltd
Priority date: 2019-10-15
Filing date: 2019-10-15
Publication date: 2020-06-30
Anticipated expiration: 2029-10-15

Abstract

The utility model discloses a butterfly valve with good sealing performance, which comprises a valve body, wherein an air deflector is arranged in the valve body, a rotating shaft is arranged in the middle of the air deflector, and two ends of the rotating shaft are respectively and integrally connected with a connecting shaft sleeve; clamping grooves are respectively formed in the periphery of the front face of the left half part and the periphery of the back face of the right half part of the air guide plate, and the outer edge of the sealing limiting block is vertically bent to form a protruding block which is matched and clamped with the corresponding clamping groove; the utility model sets the wind deflector and the rotating shaft inside the wind deflector as an integrated structure, has good stability and high strength, and increases the precision of controlling and adjusting the wind deflector; the bearing cover plate, the actuator fixing plate and the valve body are of an integrally formed structure, so that the integral structural compactness and the mounting stability of the butterfly valve are improved; the air deflector edge adopts the groove design, and is in fit clamping connection with the bump on the sealing limiting block on the inner wall of the valve body, so that no air leakage is ensured when the valve body is closed, the sealing effect is good, the influence of abrasion of the air deflector edge is small, and the service life of the valve body is prolonged.

Description

Butterfly valve with good sealing performance

Technical Field

The utility model relates to a filling field specifically is a butterfly valve that leakproofness is good.

Background

A butterfly valve, also called a flap valve, is a regulating valve with simple structure, and can be used for the on-off control of low-pressure pipeline media, namely a valve which is opened and closed by rotating around a valve shaft, wherein a closing member (a valve clack or a butterfly plate) is a disk. The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The pipe mainly plays a role in cutting off and throttling. The butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly plate in the valve body, so that the opening and closing or adjusting purpose is achieved.

The butterfly valve used for controlling the ventilation quantity at present controls the medium flow by adjusting the turning angle of the internal air deflector, when the butterfly valve is closed, the air deflector is attached to the inner wall of the valve body, the sealing performance of the structure cannot be well guaranteed, particularly, the edge of the air deflector is abraded after being used for multiple times, a good sealing state cannot be formed between the edge of the air deflector and the inner wall of the valve body, and the leakage rate is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a butterfly valve that leakproofness is good to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a butterfly valve with good sealing performance comprises a valve body, wherein an air deflector is arranged in the valve body, a rotating shaft is arranged in the middle of the air deflector, and two ends of the rotating shaft are respectively and integrally connected with a connecting shaft sleeve; the air deflector is divided into a left part and a right part along the rotating shaft, the periphery of the front surface of the left half part and the periphery of the back surface of the right half part are respectively provided with an inward concave clamping groove, the positions of the inner wall of the valve body, which correspond to the left part and the right part of the air deflector, are respectively provided with a convex sealing limiting block, and the outer edge of the sealing limiting block is vertically bent to form a convex block which is matched and clamped with the corresponding; the positions of the side wall of the valve body, which correspond to the two ends of the rotating shaft, are respectively provided with a bearing cover plate, and bearing assemblies connected with the two ends of the rotating shaft are respectively arranged in the two bearing cover plates.

Preferably, the rotating shaft, the connecting shaft sleeve and the air deflector are of an integrally formed structure, and the end part of the connecting shaft sleeve is provided with a mounting sleeve hole for inserting the bearing assembly.

Preferably, the two sealing limit blocks are respectively arranged at an upper height position and a lower height position which take the rotating shaft as a boundary, and the height difference of the two sealing limit blocks is equal to the thickness of the air guide plate.

Preferably, an actuator fixing plate is arranged on the outer wall of the valve body corresponding to one of the bearing cover plates, and the bearing cover plate, the actuator fixing plate and the valve body are of an integrally formed structure.

Preferably, the valve body is made of transparent PP materials, and the thickness of the side wall of the valve body, the air deflector and the thickness of the bearing cover plate are all 8 mm.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model sets the wind deflector and the rotating shaft inside the wind deflector as an integrated structure, has good stability and high strength, and increases the precision of controlling and adjusting the wind deflector; the bearing cover plate, the actuator fixing plate and the valve body are of an integrally formed structure, so that the integral structural compactness and the mounting stability of the butterfly valve are improved; the air deflector edge adopts the groove design, and is in fit clamping connection with the bump on the sealing limiting block on the inner wall of the valve body, so that no air leakage is ensured when the valve body is closed, the sealing effect is good, the influence of abrasion of the air deflector edge is small, and the service life of the valve body is prolonged.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of a connection structure of the air deflector and the valve body of the present invention;

fig. 3 is a schematic view of the front structure of the air deflector of the present invention;

fig. 4 is a schematic side view of the air deflector of the present invention;

fig. 5 is a schematic view of a specific connection structure of the rotating shaft and the connecting shaft sleeve of the present invention;

fig. 6 is the utility model discloses a concrete connection structure schematic diagram of aviation baffle and sealed stopper.

In the figure: 1. a valve body; 2. an air deflector; 3. a rotating shaft; 4. connecting the shaft sleeve; 5. installing a trepan boring; 6. a card slot; 7. sealing the limiting block; 8. a bump; 9. an actuator fixing plate; 10. a bearing cover plate; 11. a bearing assembly.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-6, the present invention provides a technical solution: a butterfly valve with good sealing performance comprises a valve body 1, wherein an air deflector 2 is arranged in the valve body 1, a rotating shaft 3 is arranged in the middle of the air deflector 2, and two ends of the rotating shaft 3 are respectively and integrally connected with a connecting shaft sleeve 4; the air deflector 2 is divided into a left part and a right part along the rotating shaft 3, the periphery of the front surface of the left half part and the periphery of the back surface of the right half part are respectively provided with an inward concave clamping groove 6, the positions of the inner wall of the valve body 1, which correspond to the left part and the right part of the air deflector 2, are respectively provided with a convex sealing limiting block 7, and the outer edge of the sealing limiting block 7 is vertically bent to form a convex block 8 which is matched and clamped with the corresponding clamping groove; the side wall of the valve body 1 is provided with bearing cover plates 10 corresponding to the two ends of the rotating shaft 3, and bearing assemblies 11 connected with the two ends of the rotating shaft 3 are mounted in the two bearing cover plates 10 respectively.

Furthermore, the rotating shaft 3, the connecting shaft sleeve 4 and the air deflector 2 are of an integrally formed structure, and the end part of the connecting shaft sleeve 4 is provided with a mounting sleeve hole 5 for inserting the bearing assembly 11.

Furthermore, two sealed stopper 7 set up respectively in two upper and lower high positions that use axis of rotation 3 as the limit, and the difference in height of two sealed stoppers 7 is equal with the thickness of aviation baffle 2.

Furthermore, an actuator fixing plate 9 is arranged on the outer wall of the valve body 1 corresponding to one bearing cover plate 10, and the bearing cover plate 10, the actuator fixing plate 9 and the valve body 1 are of an integrally formed structure.

Further, the valve body 1 is made of transparent PP materials, and the thicknesses of the side wall of the valve body 1, the air deflector 2 and the bearing cover plate 10 are all 8 mm.

The during operation, under outside drive unit's drive, aviation baffle 2 rotates along with axis of rotation 3, when closing, 2 left half parts of aviation baffle overturn downwards, draw-in groove 6 and the protruding block 8 cooperation joint on the sealed stopper 7 of 1 left side inner wall of valve body on the left side, 2 right half parts of aviation baffle overturn upwards simultaneously, draw-in groove 6 and the protruding block 8 cooperation joint on the sealed stopper 7 of 1 right side inner wall of valve body on the right side of right side, form sealed linking structure, no wind volume when guaranteeing that the valve body closes leaks, it is sealed effectual, it is little influenced by aviation baffle edge wear, the life of valve body has been prolonged. The air deflector 2 and the rotating shaft 3 in the air deflector are arranged into an integrally formed structure, so that the stability is good, the strength is high, and the control and adjustment accuracy of the air deflector 2 is improved; bearing cover plate 10, executor fixed plate 9 and valve body 1 are integrated into one piece structure, have increased the holistic compact structure nature of butterfly valve and the stability of installation.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A butterfly valve with good sealing performance is characterized by comprising a valve body (1), wherein an air deflector (2) is arranged in the valve body (1), a rotating shaft (3) is arranged in the middle of the air deflector (2), and two ends of the rotating shaft (3) are respectively and integrally connected with a connecting shaft sleeve (4); the air deflector (2) is divided into a left part and a right part along the rotating shaft (3), the periphery of the front surface of the left half part and the periphery of the back surface of the right half part are respectively provided with an inward concave clamping groove (6), the positions of the inner wall of the valve body (1) corresponding to the left part and the right part of the air deflector (2) are respectively provided with a convex sealing limiting block (7), and the outer edge of the sealing limiting block (7) is vertically bent to form a convex block (8) which is matched and clamped with the corresponding clamping groove (6); the valve body (1) lateral wall corresponds axis of rotation (3) both ends position department and is provided with bearing apron (10) respectively, installs bearing assembly (11) of being connected with axis of rotation (3) both ends in two bearing apron (10) respectively.

2. The butterfly valve with good sealing performance according to claim 1, wherein: the rotating shaft (3), the connecting shaft sleeve (4) and the air deflector (2) are of an integrally formed structure, and a mounting sleeve hole (5) for inserting the bearing assembly (11) is formed in the end portion of the connecting shaft sleeve (4).

3. The butterfly valve with good sealing performance according to claim 1, wherein: the two sealing limit blocks (7) are respectively arranged at the upper and lower height positions which take the rotating shaft (3) as a boundary, and the height difference of the two sealing limit blocks (7) is equal to the thickness of the air deflector (2).

4. The butterfly valve with good sealing performance according to claim 1, wherein: an actuator fixing plate (9) is arranged at the position, corresponding to one bearing cover plate (10), of the outer wall of the valve body (1), and the bearing cover plate (10), the actuator fixing plate (9) and the valve body (1) are of an integrally formed structure.

5. The butterfly valve with good sealing performance according to claim 1, wherein: the valve body (1) is made of transparent PP materials, and the thicknesses of the side wall of the valve body (1), the air deflector (2) and the bearing cover plate (10) are all 8 mm.