Wear-resistant ball valve device

Abstract

The utility model discloses a wear-resisting ball valve device which comprises a valve body and a small valve body, a ball body is arranged in the valve body, an upper valve shaft and a lower valve shaft are arranged at the top and the bottom of the valve body respectively, a first double-end stud is arranged on one side of the small valve body, and a second double-end stud is arranged at the bottom of the lower valve shaft. An upper shaft sleeve corresponding to the upper valve shaft is arranged at the top of the valve body in a penetrating mode, a transition seat is arranged at the top of the upper shaft sleeve, a connecting disc is fixedly connected to the top of the transition seat, and a valve seat is arranged in the small valve body. The ball body, the upper valve shaft and the lower valve shaft are matched with one another, the structure of the ball body is optimized, a part of the ball body is beveled, and the sealing area is the same as that of the ball valve, so that the use performance of the ball valve is not reduced, the size of the ball body is reduced, the weight of the ball body is reduced, and the ball valve has the advantages of the ball valve and the characteristics of a semi-ball valve; the ball valve is small in flow resistance coefficient, flexible to open and close, low in cost and longer in service life.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valves, in particular to a wear-resistant ball valve device. Background Art

[0002] A ball valve is a valve that controls flow by rotating the ball. It has a wide range of uses and is suitable for the cutoff and regulation of various high-pressure, high-temperature, and corrosive media. The sealing, wear resistance, rotation flexibility, and service life of a ball valve are much better than those of a semi-ball valve.

[0003] However, the structure of the ball valve is relatively complex, and the opening and closing cycle is longer than that of the semi-ball valve. There are certain limitations in its use. In order to better cope with various working conditions, we propose to design a wear-resistant ball valve device. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0006] A wear-resistant ball valve device comprises a valve body and a small valve body, a sphere is arranged inside the valve body, an oblique cut is arranged on one side of the sphere, an upper valve shaft and a lower valve shaft are arranged on the top and bottom of the valve body respectively, a first stud is arranged on one side of the small valve body, a second stud is arranged on the bottom of the lower valve shaft, an upper sleeve corresponding to the upper valve shaft is arranged through the top of the valve body, a transition seat is arranged on the top of the upper sleeve, a connecting plate is fixedly connected to the top of the transition seat, a valve seat is arranged inside the small valve body, a square ring is arranged between the outer side wall of the valve seat and the small valve body, and a sealing ring is arranged on the side of the valve seat close to the sphere.

[0007] As a preferred solution of the wear-resistant ball valve device described in the utility model, the first stud passes through the small valve body and is threadedly connected to the valve body, and a corresponding hexagonal nut is provided at the end of the first stud, so that the valve body and the small valve body can be fixed together through the first stud.

[0008] As a preferred solution of the wear-resistant ball valve device described in the utility model, the second stud passes through the lower valve shaft and is threadedly connected to the valve body, and a corresponding hexagonal nut is provided at the end of the second stud, so that the lower valve shaft can be fixed conveniently through the second stud.

[0009] As a preferred solution of the wear-resistant ball valve device described in the utility model, the lower valve shaft passes through the valve body and fits smoothly with the inner wall of the shaft hole at the bottom of the ball, and the ball is easily positioned in the valve body through the upper valve shaft and the lower valve shaft.

[0010] As a preferred solution of the wear-resistant ball valve device described in the utility model, the transition seat and the valve body are fixed by bolts, and the upper valve shaft passes through the valve body and fits with the shaft hole at the top of the ball, so as to facilitate the connection of the upper valve shaft and the ball.

[0011] As a preferred solution of the wear-resistant ball valve device described in the utility model, the upper valve shaft is connected to the external cylinder rotating main shaft, and the upper valve shaft is pneumatically driven to rotate, thereby driving the ball to rotate, so that the ball is fully opened or closed.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model cooperates with the sphere, the upper valve shaft and the lower valve shaft, optimizes the sphere structure, and cuts a portion of the sphere obliquely, so that the sealing area is the same as that of the ball valve, which does not reduce the performance of the ball valve, and reduces the volume and weight of the sphere from the design. The utility model not only has the advantage of a small flow resistance coefficient of the ball valve, but also has the characteristics of a semi-ball valve that can both adjust the book and achieve a cutting function when conveying slurry, so that the utility model is flexible to switch, low in cost, and longer in service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0015] Figure 1 This is a schematic diagram of the structure of the wear-resistant ball valve device of the utility model;

[0016] Figure 2 It is a schematic diagram of the ball structure of the wear-resistant ball valve device of the utility model.

[0017] Legend: 1. Valve body; 2. Small valve body; 3. Ball; 4. Upper valve shaft; 5. Lower valve shaft; 6. First stud; 7. Second stud; 8. Upper sleeve; 9. Transition seat; 10. Connecting plate; 11. Valve seat; 12. Square ring; 13. Sealing ring. DETAILED DESCRIPTION

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0019] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0020] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] See also Figure 1-2 The utility model provides a wear-resistant ball valve device, including a valve body 1 and a small valve body 2. A ball 3 is arranged inside the valve body 1, and an oblique cut is arranged on one side of the ball 3. An upper valve shaft 4 and a lower valve shaft 5 are arranged on the top and bottom of the valve body 1, respectively. The upper valve shaft 4 is connected to the external cylinder rotating main shaft, and the upper valve shaft 4 is driven by pneumatic drive to rotate, thereby driving the ball 3 to rotate, so that the ball 3 is fully opened or closed. The lower valve shaft 5 penetrates the valve body 1 and fits smoothly with the inner wall of the shaft hole at the bottom of the ball 3. The upper valve shaft 4 and the lower valve shaft 5 facilitate positioning of the ball 3 in the valve body 1.

[0022] A first stud 6 is provided on one side of the small valve body 2, the first stud 6 penetrates the small valve body 2 and is threadedly connected to the valve body 1, and a corresponding hexagonal nut is provided at the end of the first stud 6, so that the valve body 1 and the small valve body 2 can be fixed together by the first stud 6. A second stud 7 is provided at the bottom of the lower valve shaft 5, the second stud 7 penetrates the lower valve shaft 5 and is threadedly connected to the valve body 1, and a corresponding hexagonal nut is provided at the end of the second stud 7, so that the lower valve shaft 5 can be fixed by the second stud 7.

[0023] An upper sleeve 8 corresponding to the upper valve shaft 4 is arranged through the top of the valve body 1, a transition seat 9 is arranged on the top of the upper sleeve 8, a connecting plate 10 is fixedly connected to the top of the transition seat 9, the transition seat 9 and the valve body 1 are fixed by bolts, the upper valve shaft 4 passes through the valve body 1 and fits with the shaft hole at the top of the ball 3, so as to facilitate the connection between the upper valve shaft 4 and the ball 3.

[0024] A valve seat 11 is arranged inside the small valve body 2 , a square ring 12 is arranged between the outer wall of the valve seat 11 and the small valve body 2 , and a sealing ring 13 is arranged on the side of the valve seat 11 close to the ball 3 .

[0025] When in use, the valve seat 11 is installed in the small valve body 2, and the ball 3 is positioned on the valve body 1 by the upper valve shaft 4 and the lower valve shaft 5. The upper valve shaft 4 is connected to the rotating main shaft of the external cylinder, and the ball 3 is fully opened or closed through pneumatic control.

[0026] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A wear-resistant ball valve device, comprising a valve body (1) and a small valve body (2), characterized in that: A sphere (3) is arranged inside the valve body (1), and an oblique cut is arranged on one side of the sphere (3); an upper valve shaft (4) and a lower valve shaft (5) are arranged on the top and bottom of the valve body (1) respectively; a first stud (6) is arranged on one side of the small valve body (2), and a second stud (7) is arranged on the bottom of the lower valve shaft (5); an upper sleeve (8) corresponding to the upper valve shaft (4) is arranged through the top of the valve body (1); a transition seat (9) is arranged on the top of the upper sleeve (8); a connecting plate (10) is fixedly connected to the top of the transition seat (9); a valve seat (11) is arranged inside the small valve body (2); a square ring (12) is arranged between the outer wall of the valve seat (11) and the small valve body (2); and a sealing ring (13) is arranged on the side of the valve seat (11) close to the sphere (3).

2. The wear-resistant ball valve device according to claim 1, characterized in that: The first stud bolt (6) passes through the small valve body (2) and is threadedly connected to the valve body (1); a corresponding hexagonal nut is provided at the end of the first stud bolt (6).

3. The wear-resistant ball valve device according to claim 1, characterized in that: The second stud bolt (7) passes through the lower valve shaft (5) and is threadedly connected to the valve body (1); a corresponding hexagonal nut is provided at the end of the second stud bolt (7).

4. The wear-resistant ball valve device according to claim 1, characterized in that: The lower valve shaft (5) passes through the valve body (1) and fits smoothly with the inner wall of the shaft hole at the bottom of the spherical body (3).

5. The wear-resistant ball valve device according to claim 1, characterized in that: The transition seat (9) and the valve body (1) are fixed by bolts, and the upper valve shaft (4) passes through the valve body (1) and fits into the top shaft hole of the ball (3).

6. The wear-resistant ball valve device according to claim 1, characterized in that: The upper valve shaft (4) is connected to the external cylinder rotation main shaft.

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