CN219317644U

CN219317644U - Butterfly valve capable of preventing sealing rubber ring from shifting

Info

Publication number: CN219317644U
Application number: CN202320342129.5U
Authority: CN
Inventors: 倪金伟
Original assignee: Zhejiang Haidie Valve Co ltd
Current assignee: Zhejiang Haidie Valve Co ltd
Priority date: 2023-02-28
Filing date: 2023-02-28
Publication date: 2023-07-07
Anticipated expiration: 2033-02-28

Abstract

The application relates to the technical field of valves, specifically be a butterfly valve for preventing sealed rubber ring skew, including the valve body, the inside valve block that is equipped with of valve body, the inside position that is close to the valve block of valve body is equipped with sealing mechanism, sealing mechanism includes central sealed pad, the inside central position that is located the valve body of central sealed pad, the inside position that is close to the valve block of valve body is equipped with the stationary blade of symmetry, the stationary blade is with the valve block symmetry, stationary blade one side is equipped with the spring that evenly arranges along stationary blade circumference, the one end of spring is equipped with the sealing washer, the valve block is located between two sealing washers, one side surface and the valve block butt of spring are kept away from to the sealing washer. The application sets up sealing mechanism, has realized the quick seal between valve inside valve block and the valve body, around the valve block rotates, realizes the quick reset of sealing washer, has reduced because of the valve block rotates many times, leads to the sealing washer skew, drops the possibility, has improved the leakproofness of valve, has improved the life of sealing washer.

Description

Butterfly valve capable of preventing sealing rubber ring from shifting

Technical Field

The application relates to the technical field of valves, in particular to a butterfly valve capable of preventing a sealing rubber ring from deviating.

Background

The butterfly valve is also called as a flap valve, and is a valve which has a simple structure and can be used for opening and closing low-pressure pipeline media.

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 is mainly used for cutting and throttling. The butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly valve opening and closing piece in the valve body, so that the purpose of opening and closing or adjusting is achieved.

Aiming at the related technology, the inventor of the application finds that at least the following technical problems exist in the process of realizing the technical scheme of the utility model of the application: the sealing washer is fixed mounting in a week of valve block, and every turn of valve block can all produce the friction with the sealing washer, and after long-time work, the sealing washer produces skew, the condition that drops easily, leads to appearing the gap around the valve block, and then leads to the valve inefficacy.

Disclosure of Invention

An object of the application is to provide a prevent butterfly valve of sealed rubber ring skew, it all can produce the friction with the sealing washer to have solved the rotation at every turn of valve block, after long-time work, the sealing washer produces the skew easily, the condition that drops, lead to appearing the gap around the valve block, and then lead to the problem of valve failure, realized the quick seal between inside valve block of valve and the valve body, around the valve block rotates, realize the quick reset of sealing washer, reduced because of the valve block rotates many times, lead to the sealing washer skew, the possibility that drops, the leakproofness of valve has been improved, the life of sealing washer has been improved.

The application provides a prevent butterfly valve of sealed rubber ring skew, which comprises a valve body, the inside valve block that is equipped with of valve body, the inside position that is close to the valve block of valve body is equipped with sealing mechanism, sealing mechanism includes the central sealed pad, the inside central point that is located the valve block of central sealed pad is put, the inside position that is close to the valve block of valve body is equipped with the stationary blade of symmetry, the stationary blade is with the valve block symmetry, stationary blade one side is equipped with the spring of following stationary blade circumference evenly arranged, the one end of spring is equipped with the sealing washer, the valve block is located between two sealing washers, one side surface and the valve block butt of spring are kept away from to the sealing washer.

Further, one side of the fixing piece, which is close to the sealing ring, is provided with a connecting plate, the connecting plate is close to the central position of the fixing piece, one end of the connecting plate is provided with a rubber film, and the rubber film is fixedly connected with the inner side of the sealing ring.

Further, the size of the opening of one end of the rubber film, which is close to the fixing piece, is larger than that of the opening of the other end of the rubber film, and the spring is positioned between the rubber film and the valve body.

Further, the valve body upper end is equipped with the disk seat, the disk seat upper end is equipped with the tooth piece, peg graft in the inside of tooth piece has first bull stick, the upper end of first bull stick is equipped with the driving lever, the lower extreme of first bull stick passes central sealed pad and peg graft in the valve block is inside, the valve block lower extreme is pegged graft there is cylindrical second bull stick, the lower extreme of second bull stick passes central sealed pad and peg graft in the valve body is inside, the driving lever lower extreme is equipped with the torsional spring, the outside of torsional spring is equipped with the gag lever post.

Furthermore, one end of the first rotating rod, which is inserted into the deflector rod, is in a quadrangular shape, and one end of the first rotating rod, which is inserted into the valve plate, is in a quadrangular shape.

One or more technical schemes provided by the application have at least the following technical effects or advantages:

1. because sealing mechanism has been adopted, set up two sealing washer in the valve body inside, the valve block is located between two sealing washer, the spring through the stationary blade realizes the reset of sealing washer, the every turn that has solved the valve block all can produce the friction with the sealing washer, after long-time work, the sealing washer produces the skew easily, the condition that drops, lead to appearing the gap around the valve block, and then lead to the problem of valve failure, realized the quick seal between valve inside valve block and the valve body, the quick reset of sealing washer is realized before and after the valve block rotates, reduced because of the valve block rotates many times, lead to the sealing washer skew, the possibility that drops, the leakproofness of valve has been improved, the life of sealing washer has been improved.

2. Because the tooth piece is adopted, through the block connection of gag lever post and tooth piece recess, carry out accurate control to the rotation angle of valve block, and then the accurate opening and shutting of the inside valve block of control valve, the flow of control valve has solved when rotating the valve block, is difficult to control valve block rotation angle, leads to the valve to open and shut the back, the inside flow size is difficult to the problem of control, has realized the visual adjustment to valve block rotation angle, helps improving the control to valve block rotation angle, has improved the control degree of the inside flow of valve.

Drawings

FIG. 1 is a schematic view of the overall structure in an embodiment of the present application;

FIG. 2 is a schematic structural view of a sealing mechanism according to an embodiment of the present application;

FIG. 3 is an exploded view of the seal mechanism of the present embodiment;

fig. 4 is a schematic structural diagram of a valve plate in an embodiment of the present application.

In the figure: 1. a valve body; 11. a valve seat; 12. a tooth plate; 13. a deflector rod; 14. a first rotating lever; 141. a second rotating rod; 15. a torsion spring; 16. a limit rod; 2. a valve plate; 3. a sealing mechanism; 31. a center gasket; 32. a fixing piece; 33. a connecting plate; 34. a spring; 35. a seal ring; 36. a rubber film.

Detailed Description

The application discloses prevent butterfly valve of sealing rubber circle skew sets up sealing mechanism 3, sets up stationary blade 32 and spring 34, supports tight connection in valve block 2 surface with sealing washer 35 through spring 34, promotes sealing washer 35 to remove when valve block 2 rotates, makes spring 34 compressed, when valve block 2 does not contact with sealing washer 35, or when valve block 2 rotates the closed channel once more, spring 34 resumes the original length, makes sealing washer 35 reset, supports tightly in the surface of valve block 2 once more.

In order to better understand the above technical solutions, the following detailed description will refer to fig. 1-4 and specific embodiments of the present disclosure.

Referring to fig. 1, the application discloses a butterfly valve for preventing offset of sealing rubber ring, including valve body 1, valve block 2 and sealing mechanism 3, valve block 2 installs in the inside of valve body 1, and valve block 2 rotates in valve body 1 inside, and sealing mechanism 3 is installed to the position that valve block 1 is inside to be close to valve block 2, and sealing mechanism 3 improves the sealed effect of valve block 2.

Referring to fig. 2 and 3, the sealing mechanism 3 includes a central sealing pad 31, a fixing piece 32, a connecting plate 33, a spring 34, a sealing ring 35 and a rubber film 36, wherein the central sealing pad 31 is fixedly installed at the central position of the inner wall of the valve body 1, the central sealing pad 31 is annular and surrounds the outer side of the valve plate 2, and the inner wall of the central sealing pad 31 is attached to the edge position of the valve plate 2. Symmetrically arranged fixing pieces 32 are fixedly arranged at positions, close to the central sealing gasket 31, inside the valve body 1, and the fixing pieces 32 are symmetrical with respect to the central sealing gasket 31. The fixing piece 32 is fixedly provided with springs 34 uniformly arranged along the circumferential direction of the fixing piece 32 at one side close to the central sealing pad 31. One end of the spring 34 is fixedly provided with a sealing ring 35, one side of the sealing ring 35 is attached to the surface of the valve plate 2, and the radius of the valve plate 2 is larger than the radius of the opening of the sealing ring 35. The fixing piece 32 is close to the position of the spring 34 and is fixedly provided with a connecting plate 33, one end of the connecting plate 33 is fixedly provided with a rubber film 36, and one end of the rubber film 36 is fixedly connected with the sealing gasket. The rubber film 36 is located between the spring 34 and the valve body 1, and the opening size of one end of the rubber film 36 near the connection plate 33 is larger than the opening size of the other end. When the valve plate 2 rotates, the edge of the valve plate 2 is contacted with the sealing ring 35, the sealing ring 35 is pushed by the valve plate 2, the spring 34 is compressed at the moment, the sealing ring 35 moves outwards, and the valve is opened. When the sealing ring 35 is separated from the contact with the valve plate 2, the spring 34 restores the original length, so that the sealing ring 35 is restored, and the friction force between the sealing ring 35 and the valve plate 2 is reduced.

Referring to fig. 1 and 4, a valve seat 11 is fixedly arranged at the upper end of a valve body 1, a tooth plate 12 is fixedly arranged at the upper end of the valve seat 11, a deflector rod 13 is rotatably arranged at the upper end of the tooth plate 12, a first rotating rod 14 is inserted into the deflector rod 13, both ends of the first rotating rod 14 are quadrangular, and the lower end of the first rotating rod 14 penetrates through the valve body 1 and is inserted into a valve plate 2. The lower end of the valve plate 2 is inserted with a second rotating rod 141, and the lower end of the second rotating rod 141 is inserted in the valve body 1. A torsion spring 15 is fixedly arranged at the lower end of the deflector rod 13, a limiting rod 16 is fixedly arranged at the outer side of the torsion spring 15, and the limiting rod 16 is connected with a groove at the edge of the tooth plate 12 in a clamping manner. The limiting rod 16 is lifted upwards, the limiting rod 16 is separated from the clamping connection with the tooth piece 12, the first rotating rod 14 is rotated by rotating the deflector rod 13, the valve plate 2 is further rotated, the valve is opened and closed, and the rotating angle of the valve plate 2 inside the valve is controlled by the position relation between the limiting rod 16 and the edge groove of the tooth piece 12, so that the flow is controlled.

The working principle of the embodiment of the application is as follows: lifting the end of the limit rod 16 away from the first rotating rod 14, separating the limit rod 16 from the engagement connection with the tooth plate 12, rotating the deflector rod 13, enabling the first rotating rod 14 to drive the valve plate 2 to rotate, and when the valve plate 2 rotates, the sealing ring 35 is extruded to move outwards, and the spring 34 is compressed. When the valve plate 2 rotates to the valve closing state again, after the sealing ring 35 is released from the pressed state, the spring 34 restores the original length, the sealing ring 35 restores to the original position and is abutted against the surface of the valve plate 2 again, so that the sealing effect is realized.

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

Claims

1. The utility model provides a prevent butterfly valve of sealed rubber ring skew, includes valve body (1), valve body (1) inside is equipped with valve block (2), its characterized in that: the valve body (1) is inside to be close to the position of valve block (2) and is equipped with sealing mechanism (3), sealing mechanism (3) are including central sealed pad (31), central sealed pad (31) are located the inside central point of valve body (1), the inside position that is close to valve block (2) of valve body (1) is equipped with stationary blade (32) of symmetry, stationary blade (32) are with valve block (2) symmetry, stationary blade (32) one side is equipped with along stationary blade (32) circumference evenly arranged spring (34), one end of spring (34) is equipped with sealing washer (35), valve block (2) are located between two sealing washers (35), one side surface and valve block (2) butt of spring (34) are kept away from to sealing washer (35).

2. A butterfly valve for preventing deflection of a packing element according to claim 1, wherein: one side of stationary blade (32) is close to sealing washer (35) is equipped with connecting plate (33), the central point that connecting plate (33) are close to stationary blade (32), one end of connecting plate (33) is equipped with rubber film (36), rubber film (36) and sealing washer (35) inboard fixed connection.

3. A butterfly valve for preventing deflection of a packing element according to claim 2, wherein: the size of the opening of one end of the rubber film (36) close to the fixing piece (32) is larger than that of the opening of the other end, and the spring (34) is positioned between the rubber film (36) and the valve body (1).

4. A butterfly valve for preventing deflection of a packing element according to claim 1, wherein: valve body (1) upper end is equipped with disk seat (11), disk seat (11) upper end is equipped with tooth piece (12), peg graft in the inside of tooth piece (12) has first dwang (14), the upper end of first dwang (14) is equipped with driving lever (13), the lower extreme of first dwang (14) is passed central sealed pad (31) and is pegged graft inside valve block (2), the grafting of valve block (2) lower extreme has cylindrical second bull stick (141), the lower extreme of second bull stick (141) is passed central sealed pad (31) and is pegged graft inside valve body (1), driving lever (13) lower extreme is equipped with torsional spring (15), the outside of torsional spring (15) is equipped with gag lever post (16).

5. A butterfly valve for preventing deflection of a packing element as recited in claim 4, wherein: the first rotating rod (14) is inserted into one end of the deflector rod (13) to form a quadrangular prism shape, and the first rotating rod (14) is inserted into one end of the valve plate (2) to form a quadrangular prism shape.