Sealing ball valve

Abstract

The utility model discloses a sealing ball valve and belongs to the field of valves, the sealing ball valve comprises a first valve body and a second valve body, a mounting disc is fixedly assembled on the outer side of the first valve body, four mounting holes are annularly formed in the inner wall of the mounting disc, and four studs are symmetrically and fixedly assembled on the side, close to the first valve body, of the second valve body; a limiting ring is integrally formed on the inner wall of the second valve body, a limiting groove is formed in the inner wall of the second valve body, a sealing ring is connected to the inner wall of the limiting groove in a clamped mode, a valve seat is fixedly installed on the inner wall of the second valve body, and a fixing seat is fixedly installed on the top of the second valve body. The sealing ring can be limited and blocked through the limiting ring, it is guaranteed that the sealing ring cannot deviate inwards and deform when the valve ball rotates, then the overall sealing performance of the valve can be guaranteed, and the situation that an elastic sealing ring is arranged at the connecting position of the first valve body and the second valve body of a traditional ball valve, and when the ball body rotates, the sealing ring cannot deform is avoided. And the sealing ring is easy to deviate when being stressed, so that the overall sealing effect of the ball valve is influenced.

Description

Technical Field

[0001] The present application relates to the field of valve technology, and in particular to a sealing ball valve. Background Art

[0002] A ball valve is a valve whose opening and closing member (ball) is driven by the valve stem and rotates around the axis of the ball valve. It is mainly used for fluid regulation and control. Its working principle is that when the ball rotates 90 degrees, the inlet and outlet should all present a spherical surface, thereby closing the valve and cutting off the flow of the medium. When the ball rotates back 90 degrees, the inlet and outlet should all present a ball mouth, thereby opening the valve and allowing the medium to circulate.

[0003] In order to prevent the medium from leaking from the gap between the first valve body and the second valve body, a traditional ball valve will be equipped with an elastic sealing ring at the connection between the first valve body and the second valve body. The sealing ring is generally placed directly on the first valve body or the second valve body. When the ball rotates, the sealing ring is easily offset by the force, affecting the overall sealing effect of the ball valve. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a sealing ball valve, which overcomes the deficiencies of the prior art and aims to solve the problems in the background technology.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: a sealing ball valve, comprising a valve body one and a valve body two, the outer side of the valve body one is fixedly equipped with a mounting plate, the inner wall of the mounting plate is annularly provided with four mounting holes, the valve body two is symmetrically fixedly equipped with four studs on one side close to the valve body one, the inner wall of the valve body two is integrally formed with a limiting ring, the inner wall of the valve body two is provided with a limiting groove, the inner wall of the limiting groove is clamped with a sealing ring, the inner wall of the valve body two is fixedly equipped with a valve seat, the top of the valve body two is fixedly equipped with a fixing seat, the inner wall of the fixing seat is rotatably connected to a rotating rod, the bottom of the rotating rod is fixedly equipped with a pentagonal column, the inner wall of the valve seat is rotatably connected to a valve ball, the outer edge of the valve ball is provided with a pentagonal hole, the inner wall of the valve ball is penetrated by a ball mouth, and the top of the fixing seat is fixedly equipped with a positioning plate by two bolts.

[0006] As a preferred embodiment, a mounting plate is also fixedly mounted on the outer side of the valve body 2, and four mounting holes are also annularly opened on the inner wall of the mounting plate.

[0007] By adopting the above technical solution, it is easy to connect valve body one and valve body two to the pipeline, and the four mounting holes opened in the ring and the screws can ensure the sealing of the connection between the mounting plate and the pipeline, ensuring that leakage will not occur easily.

[0008] As a preferred embodiment, the inner wall of the valve body 1 is symmetrically provided with four insertion holes, the four studs are inserted into the inner walls of the four insertion holes, the outer edges of the four studs are threadedly connected with nuts, and the outer sides of the four nuts are in contact with the outer side of the valve body 1.

[0009] By adopting the above technical solution, valve body one and valve body two can be firmly connected to ensure that they will not be easily detached when liquid flows in the inner cavity of valve body one and valve body two, and the connection can be completed by tightening the nut, ensuring the convenience of installation and connection of valve body one and valve body two.

[0010] As a preferred embodiment, the pentagonal column is inserted into the inner wall of the pentagonal hole, and the size of the pentagonal column is adapted to the size of the inner wall of the pentagonal hole.

[0011] By adopting the above technical solution, the pentagonal column can be inserted into the inner wall of the pentagonal hole and the rotating rod and the valve ball can be connected, thereby ensuring that the rotating rod can drive the valve ball to rotate on the inner wall of the valve seat when rotating, and then the direction of the ball mouth is reversed to realize the opening and closing of the valve.

[0012] As a preferred embodiment, the outer edge of the rotating rod is fixedly equipped with an abutment ring, a circular hole is opened in the middle of the positioning plate, the rotating rod is rotatably connected to the inner wall of the circular hole, the top of the abutment ring is in contact with the bottom of the positioning plate, and the bottom of the abutment ring is in contact with the top of the fixed seat.

[0013] By adopting the above technical solution, the positioning plate can be used in conjunction with the abutment ring to position the rotating rod, ensuring that the rotating rod cannot move up and down at will and ensuring the stability of its rotation when it is in a vertical state.

[0014] As a preferred embodiment, the valve seat is made of cemented carbide.

[0015] By adopting the above technical solution, its good wear resistance can be utilized, and it is not easy to wear when applied to media containing sand and gravel, thereby ensuring its service life.

[0016] As a preferred embodiment, the inner walls of the fixing seat, the second valve body and the valve seat are all provided with a rotation hole adapted to the outer diameter of the rotation rod, and the rotation rod is rotatably connected to the inner wall of the rotation hole.

[0017] By adopting the above technical solution, the rotating rod will not interfere with the fixed seat, valve body 2 and valve seat during rotation, thereby ensuring its smoothness and stability during rotation and preventing it from swinging at will.

[0018] As a preferred embodiment, a rotating column is fixedly mounted on the top of the rotating rod.

[0019] By adopting the above technical solution, the position of the ball mouth can be adjusted by rotating the rotating rod in conjunction with an auxiliary tool to achieve opening and closing of the valve.

[0020] Beneficial effects of this application:

[0021] 1. This sealing ball valve can limit and block the sealing ring through the limit ring, ensuring that the sealing ring will not deviate inward and deform when the valve ball rotates, thereby ensuring the overall sealing of the valve, avoiding the problem that the traditional ball valve will set an elastic sealing ring at the connection between the first valve body and the second valve body. When the ball rotates, the sealing ring is easily deviated by the force, which will affect the overall sealing effect of the ball valve.

[0022] 2. This sealed ball valve can be removed from the inner wall of the rotating hole by removing the two bolts and then taking out the positioning plate from the outer edge of the rotating rod. The pentagonal column is then separated from the inner wall of the pentagonal hole. The valve ball can then be removed from the inner wall of the valve seat, making it easier to replace and maintain the valve ball. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the three-dimensional structure of this application;

[0024] Figure 2 This is a schematic diagram of the expanded structure of this application;

[0025] Figure 3 This is a schematic diagram of the cross-sectional structure of this application;

[0026] Figure 4 This is a schematic diagram of the local structure of this application.

[0027] Numbers in the figure: 1. Valve body 1; 2. Socket; 3. Mounting plate; 4. Mounting hole; 5. Valve body 2; 6. Stud; 7. Nut; 8. Limiting ring; 9. Sealing ring; 10. Valve seat; 11. Fixed seat; 12. Rotating rod; 13. Pentagonal column; 14. Valve ball; 15. Pentagonal hole; 16. Ball mouth; 17. Abutment ring; 18. Rotating column; 19. Positioning plate; 20. Bolt; 21. Limiting groove. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0029] Reference Figure 1-4, a sealing ball valve comprises a valve body 1 and a valve body 2 5. The outer side of the valve body 1 is fixedly assembled with a mounting plate 3, and the inner wall of the mounting plate 3 is provided with four mounting holes 4 in an annular manner. The valve body 2 5 is symmetrically fixedly assembled with four studs 6 on one side close to the valve body 1, and the inner wall of the valve body 2 5 is integrally formed with a limiting ring 8. The inner wall of the valve body 2 5 is provided with a limiting groove 21, and the inner wall of the limiting groove 21 is clamped with a sealing ring 9. The inner wall of the valve body 2 5 is fixedly mounted with a valve seat 10, and the top of the valve body 2 5 is fixedly mounted with a fixing seat 11. The inner wall of the fixing seat 11 is rotatably connected with a rotating rod 12, and the bottom of the rotating rod 12 is fixedly assembled with a pentagonal column 13. The inner wall of the valve seat 10 is rotatably connected with a valve ball 14, and the outer edge of the valve ball 14 is provided with a pentagonal hole 15. The inner wall of the valve ball 14 is penetrated by a ball port 16, and the top of the fixing seat 11 is fixedly mounted with a positioning plate 19 by two bolts 20.

[0030] See Figure 1 and Figure 2 The outer side of the valve body 2 5 is also fixedly equipped with a mounting plate 3, and the inner wall of the mounting plate 3 is also provided with four mounting holes 4 in a ring shape, which makes it easy to connect the valve body 1 and the valve body 2 5 with the pipeline, and the four mounting holes 4 in a ring shape are used in conjunction with screws to ensure the sealing of the connection between the mounting plate 3 and the pipeline, so as to ensure that leakage will not occur easily.

[0031] See Figure 2 The inner wall of the valve body 1 is symmetrically provided with four insertion holes 2, and four studs 6 are inserted into the inner walls of the four insertion holes 2. The outer edges of the four studs 6 are threadedly connected with nuts 7. The outer sides of the four nuts 7 fit into the outer side of the valve body 1, so that the valve body 1 and the valve body 2 5 can be firmly connected, ensuring that the valve body 1 and the valve body 2 5 will not be easily detached when liquid flows in the inner cavity of the valve body 1 and the valve body 2 5, and the connection can be completed by tightening the nuts 7, ensuring the convenience of installation and connection of the valve body 1 and the valve body 2 5.

[0032] See Figure 4 The pentagonal column 13 is inserted into the inner wall of the pentagonal hole 15. The size of the pentagonal column 13 is adapted to the size of the inner wall of the pentagonal hole 15, so that the pentagonal column 13 can be inserted into the inner wall of the pentagonal hole 15 to connect the rotating rod 12 and the valve ball 14, thereby ensuring that the rotating rod 12 can drive the valve ball 14 to rotate on the inner wall of the valve seat 10 when rotating, and then reverse the direction of the ball mouth 16 to realize the opening and closing of the valve.

[0033] See Figure 4The outer edge of the rotating rod 12 is fixedly equipped with an abutment ring 17, and a circular hole is opened in the middle of the positioning plate 19. The rotating rod 12 is rotatably connected to the inner wall of the circular hole, and the top of the abutment ring 17 is in contact with the bottom of the positioning plate 19, and the bottom of the abutment ring 17 is in contact with the top of the fixed seat 11, so that the positioning plate 19 can be used to cooperate with the abutment ring 17 to position the rotating rod 12, ensuring that the rotating rod 12 cannot move up and down at will, and ensuring the stability of its rotation when it is in a vertical state.

[0034] See Figure 3 The valve seat 10 is made of cemented carbide, which makes it possible to utilize its good wear resistance. It is not easy to wear when used in media containing sand and gravel, thereby ensuring its service life.

[0035] See Figure 3 and Figure 4 The inner walls of the fixed seat 11, the valve body 2 5 and the valve seat 10 are all provided with a rotating hole that is adapted to the outer diameter of the rotating rod 12. The rotating rod 12 is rotatably connected to the inner wall of the rotating hole, so that the rotating rod 12 will not interfere with the fixed seat 11, the valve body 2 5 and the valve seat 10 during rotation, thereby ensuring its smoothness and stability during rotation, and will not swing at will.

[0036] See Figure 3 and Figure 4 The top of the rotating rod 12 is fixedly equipped with a rotating column 18, so that the rotating rod 12 can be rotated with an auxiliary tool to adjust the position of the ball mouth 16 to open and close the valve.

[0037] Working principle: First, the stud 6 on the outside of the valve body 2 5 can be inserted into the inner wall position of the socket 2, and then the nut 7 can be threadedly connected to the outer edge position of the stud 6 until the outer side of the nut 7 fits against the outer side of the valve body 1 to firmly connect the valve body 1 and the valve body 2 5. By rotating the rotating column 18 with an auxiliary tool to drive the rotating rod 12 to rotate, the valve ball 14 can be driven to rotate on the inner wall of the valve seat 10 to adjust the position of the ball mouth 16, and then the valve can be opened and closed. The limiting ring 8 can play a limiting and blocking role on the sealing ring 9 to ensure that the sealing ring 9 will not shift inward and deform when the valve ball 14 rotates, thereby ensuring the sealing performance. By removing the two bolts 20 and then removing the positioning plate 19 from the outer edge of the rotating rod 12, the rotating rod 12 can be removed from the inner wall of the rotating hole, and then the pentagonal column 13 can be separated from the inner wall of the pentagonal hole 15, and then the valve ball 14 can be removed from the inner wall of the valve seat 10, which is convenient for replacement and maintenance of the valve ball 14.

[0038] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "two ends," "one end," "the other end," and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0040] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are merely illustrative and are not intended to limit the scope of protection of the present invention. Those skilled in the art may make various modifications and variations to the present invention based on the spirit and principles of the present invention, and such modifications and variations are also within the scope of the present invention.

Claims

1. A sealed ball valve, comprising a valve body 1 (1) and a valve body 2 (5), characterized in that: The outer side of the valve body (1) is fixedly equipped with a mounting plate (3), and the inner wall of the mounting plate (3) is provided with four mounting holes (4) in an annular manner. The valve body (5) is symmetrically fixedly equipped with four studs (6) on one side close to the valve body (1). The inner wall of the valve body (5) is integrally formed with a limiting ring (8). The inner wall of the valve body (5) is provided with a limiting groove (21), and the inner wall of the limiting groove (21) is clamped with a sealing ring (9). The inner wall of the valve body (5) is fixedly equipped with a valve seat (10). A fixing seat (11) is fixedly installed on the top of the second body (5), and the inner wall of the fixing seat (11) is rotatably connected to a rotating rod (12), and the bottom of the rotating rod (12) is fixedly assembled with a pentagonal column (13). The inner wall of the valve seat (10) is rotatably connected to a valve ball (14), and a pentagonal hole (15) is provided on the outer edge of the valve ball (14). A ball opening (16) is provided through the inner wall of the valve ball (14), and a positioning plate (19) is fixedly installed on the top of the fixing seat (11) by two bolts (20).

2. A sealing ball valve according to claim 1, characterized in that: The outer side of the second valve body (5) is also fixedly mounted with a mounting plate (3), and the inner wall of the mounting plate (3) is also provided with four mounting holes (4) in a circular shape.

3. A sealing ball valve according to claim 1, characterized in that: The inner wall of the valve body (1) is symmetrically provided with four insertion holes (2), the four studs (6) are inserted into the inner walls of the four insertion holes (2), the outer edges of the four studs (6) are threadedly connected with nuts (7), and the outer sides of the four nuts (7) are in contact with the outer side of the valve body (1).

4. A sealing ball valve according to claim 1, characterized in that: The pentagonal column (13) is plugged into the inner wall of the pentagonal hole (15), and the size of the pentagonal column (13) is compatible with the size of the inner wall of the pentagonal hole (15).

5. The sealing ball valve according to claim 1, characterized in that: The outer edge of the rotating rod (12) is fixedly equipped with an abutment ring (17), the middle of the positioning plate (19) is provided with a circular hole, the rotating rod (12) is rotatably connected to the inner wall of the circular hole, the top of the abutment ring (17) is in contact with the bottom of the positioning plate (19), and the bottom of the abutment ring (17) is in contact with the top of the fixing seat (11).

6. The sealing ball valve according to claim 1, characterized in that: The valve seat (10) is made of hard alloy.

7. The sealing ball valve according to claim 1, characterized in that: The inner walls of the fixed seat (11), the second valve body (5) and the valve seat (10) are all provided with a rotation hole adapted to the outer diameter of the rotation rod (12), and the rotation rod (12) is rotatably connected to the inner wall of the rotation hole.

8. The sealing ball valve according to claim 1, characterized in that: A rotating column (18) is fixedly mounted on the top of the rotating rod (12).

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