Valve body of adjusting ball valve

Abstract

The invention belongs to the field of adjusting ball valves, and particularly relates to an adjusting ball valve body which comprises a ball valve body, an extension column is fixedly connected to the top end of the ball valve body, the inner wall of the extension column is in threaded connection with a mounting rod, a connecting rod is rotatably connected to the interior of the mounting rod, and the bottom end of the connecting rod is inserted into a connecting groove. The connecting groove is formed in the top end of the sealing ball, auxiliary sealing mechanisms are arranged on the left side and the right side of the sealing ball and can improve the sealing performance of the interior of the ball valve body, a moving mechanism is arranged at the front end of the sealing ball, and when the sealing ball is in an open state, the moving mechanism can move in the sealing ball. The sealing ring is separated from the sealing ball; through the structural design of the auxiliary sealing mechanism, the function of assisting in sealing the interior of the ball valve body is achieved, so that the ball valve body is matched with a sealing ring, a better sealing effect is provided, the replacement frequency of the sealing ring in the ball valve body is reduced, and the reliability of the ball valve body under long-term work is improved.

Description

Technical Field

[0001] The present invention relates to the field of regulating ball valves, and specifically to a regulating ball valve body. Background Art

[0002] The regulating ball valve mainly consists of an actuator and a ball valve. The ball valve usually consists of a valve body, a ball, a valve stem and other structures. The valve body is the main container and support structure of the regulating ball valve, and can provide a channel for the fluid.

[0003] According to a ball valve regulating valve proposed in the patent document CN202210807526.5, it includes a left valve body and a right valve body. The left valve body is screwed on the right valve body. The rightmost end inside the left valve body is fixedly connected with a valve seat. The inner opening structure of the valve seat includes several round holes provided on the valve seat and a flared opening provided on the valve seat. A sealing ring is provided at the rightmost end of the valve seat. An orifice plate is installed at the left end inside the right valve body. There is a valve cavity penetrating up and down between the left valve body and the right valve body. The through hole at the upper end of the valve cavity is inserted and installed with an upper cover. A ball is provided inside the valve cavity. The valve stem is rotatably connected inside the upper cover. The upper end of the valve stem is connected to an electric actuator. The lower end of the valve stem extends into the valve cavity and is fixedly installed at the upper end of the ball. The lower end of the right valve body is screwed with a lower cover, and the lower cover passes through the right valve body and is connected to the lower end of the ball. The present invention can make the flow characteristic of the valve follow a linear law, reduce noise and vibration, and at the same time can prevent cavitation. The regulation performance is stable, the regulation is precise, the volume is small, and the weight is light, and it can meet the working conditions requirements of the pipeline system of new ships.

[0004] However, for the ball valve regulating valve in the above technology, when the ball valve is closed, the sealing is mainly achieved through the contact between the ball and the sealing ring. Once there is significant wear on the side of the sealing ring in contact with the ball, the sealing ring cannot provide sufficient sealing performance, and the sealing ring needs to be replaced in time, resulting in relatively frequent replacement of the sealing ring. Therefore, a regulating ball valve body is proposed to solve the above problems. Summary of the Invention

[0005] In order to solve the problem that for the ball valve regulating valve in the above technology, when the ball valve is closed, the sealing is mainly achieved through the contact between the ball and the sealing ring. Once there is significant wear on the side of the sealing ring in contact with the ball, the sealing ring cannot provide sufficient sealing performance, and the sealing ring needs to be replaced in time, resulting in relatively frequent replacement of the sealing ring, the present invention proposes a regulating ball valve body.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: An adjustable ball valve body of the present invention includes a ball valve main body. An extension column is fixedly connected to the top end of the ball valve main body. The inner wall of the extension column is threadedly connected to an installation rod. A connecting rod is rotatably connected inside the installation rod. The bottom end of the connecting rod is inserted into a connecting groove. The connecting groove is opened at the top end of a sealing ball. Auxiliary sealing mechanisms are arranged on the left and right sides of the sealing ball. The auxiliary sealing mechanisms can improve the sealing performance inside the ball valve main body. A moving mechanism is arranged at the front end of the sealing ball. When the sealing ball is in an open state, the moving mechanism can separate the sealing ring from the sealing ball to reduce the wear of the sealing ring and facilitate the extension of the service life of the sealing ring.

[0007] Preferably, the auxiliary sealing mechanism includes two sealing rings. The sealing rings are close to the left and right sides of the sealing ball. Two connecting springs are fixedly connected to the side of the sealing ring away from the sealing ball. The side of the connecting spring away from the sealing ring is fixedly connected to the inner wall of a movable groove. A slot corresponding to the connecting spring is reserved on the inner wall of the movable groove. The movable groove is opened on the inner wall of the ball valve main body. A groove is opened on the inner wall of the ball valve main body. The top end and the bottom end of the sealing ring are respectively abutted against a second top block and a first top block. The second top block is fixedly connected to the bottom end of the connecting rod. The first top block is fixedly connected to a rotating shaft. The bottom end of the rotating shaft is rotatably connected to the inner wall of the ball valve main body. The top end of the rotating shaft is fixedly connected to an insertion block. The insertion block is inserted into the inside of a slot. The slot is opened at the bottom end of the sealing ball.

[0008] Preferably, the moving mechanism includes an installation ring. A filter net is fixedly connected to the inner wall of the installation ring. The left and right sides of the installation ring are fixedly connected to connecting blocks through screws. The side of the connecting block away from the installation ring is fixedly connected to a first moving block. A threaded groove is opened in the inner wall of the first moving block. The first moving block is slidably connected to the rear end of a rotating rod. The front and rear sides of the rotating rod are rotatably connected to the inner wall of the movable groove. Helical lines are opened on the front and rear sides of the rotating rod and the helix directions of the helical lines are opposite. The front end of the rotating rod is slidably connected to a second moving block. The second moving block is fixedly connected to a metal ring. The metal ring is fixedly connected to the front end of the sealing ring. The front end of the metal ring is designed with a hollow. A plurality of support springs are fixedly connected to the inner wall of the metal ring. The front end of the support spring is fixedly connected to the inner wall of a receiving groove. The receiving groove is opened at the rear end of a fixing ring. The fixing ring is fixedly connected to the inner wall of the ball valve main body. The fixing ring is located in front of the sealing ball.

[0009] Preferably, the inner wall of the receiving groove fits with the metal ring. A plurality of insertion posts are fixedly connected to the inner wall of the receiving groove. The insertion posts penetrate through the sealing ring and the metal ring.

[0010] Preferably, limiting columns are fixedly connected to the top and bottom of the mounting ring. The limiting columns are slidably connected inside the limiting grooves, and the limiting columns are in contact with the inner walls of the limiting grooves. The limiting grooves are formed at the top and bottom of the inner wall of the ball valve body.

[0011] Preferably, an annular groove is formed in the mounting rod, and a rubber ring is fixedly connected to the inner wall of the annular groove. The bottom end of the rubber ring abuts against the top end of the extension column.

[0012] Preferably, two groups of support blocks are fixedly connected to the position of the rotating shaft close to the top. The support blocks are in fit with the bottom end of the insertion block, and the top end of the support block is in fit with the bottom end of the sealing ball.

[0013] Preferably, a fixing plate is fixedly connected to the inner wall of the sealing ball. Multiple round holes are formed in the fixing plate, and the fixing plate is perpendicular to the sealing ring.

[0014] Preferably, the bottom end of the connecting rod is designed in a rectangle. The bottom end of the connecting rod is in fit with the inner wall of the connecting groove, and the insertion block is in fit with the inner wall of the insertion slot.

[0015] Preferably, the cross-section of the mounting rod is designed in a T shape. The top end of the mounting rod is in fit with the top end of the extension column.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. Through the structural design of the auxiliary sealing mechanism, the present invention realizes the function of assisting in sealing the inside of the ball valve body, so as to cooperate with the sealing ring to provide a better sealing effect, thereby reducing the replacement frequency of the sealing ring inside the ball valve body and improving the reliability of the ball valve body under long-term operation. It solves the problem that in the existing ball valve regulating valve, when the ball valve is closed, the sealing is mainly achieved through the contact between the sphere and the sealing ring. Once there is significant wear on the side of the sealing ring in contact with the sphere, the sealing ring cannot provide sufficient sealing performance and needs to be replaced in time, resulting in relatively frequent replacement of the sealing ring.

[0018] 2. Through the structural design of the moving mechanism, when the sealing ball is in the open state, the original sealing ring in contact with the sealing ball will move away from the sealing ball, so as to separate from the sealing ball, reducing the wear of the sealing ring. At the same time, after the sealing ball is closed, the sealing ring can be reset under the action of the support spring and come into contact with the surface of the sealing ball again, facilitating the normal sealing of the inside of the ball valve body by the sealing ball.

[0019] 3. Through the structural design of the filter screen, the filter screen can filter the medium transported inside the ball valve body, filtering out possible impurities and particulate matters in the medium, and preventing the impurities and particulate matters from jamming the ball valve or subsequent equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 It is a three-dimensional structure schematic diagram of the present invention;

[0022] Figure 2 It is a structure schematic diagram of the rear end of the present invention;

[0023] Figure 3 It is a cross-sectional structure schematic diagram of the present invention;

[0024] Figure 4 It is a connection structure schematic diagram of the filter screen of the present invention;

[0025] Figure 5 It is a connection structure schematic diagram of the sealing ring of the present invention;

[0026] Figure 6 It is a structure schematic diagram of the sealing ball of the present invention;

[0027] Figure 7 It is a structure schematic diagram of the bottom end of the sealing ball of the present invention;

[0028] Figure 8 It is a connection structure schematic diagram of the connecting rod of the present invention;

[0029] Figure 9 It is a position structure schematic diagram of the movable slot of the present invention.

[0030] In the figure: 1, ball valve body; 20, extension column; 21, fixing ring; 22, filter screen; 23, limiting column; 24, limiting groove; 25, mounting ring; 26, first moving block; 27, rotating rod; 28, second moving block; 29, sealing ring; 31, metal ring; 32, inserting column; 33, supporting spring; 34, connecting block; 35, movable slot; 36, groove; 37, connecting spring; 39, fixing plate; 40, round hole; 41, sealing ring; 42, connecting groove; 43, sealing ball; 44, inserting slot; 45, inserting block; 46, supporting block; 47, first top block; 48, rotating shaft; 49, annular groove; 50, rubber ring; 51, second top block; 52, connecting rod; 53, mounting rod; 54, storage groove. DETAILED DESCRIPTION OF THE INVENTION

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Embodiment 1

[0033] Please refer to Figure 1 - Figure 9 As shown in the figure, a regulating ball valve body includes a ball valve main body 1. An extension column 20 is fixedly connected to the top end of the ball valve main body 1. The inner wall of the extension column 20 is threadedly connected to an installation rod 53. A connecting rod 52 is rotatably connected inside the installation rod 53. The bottom end of the connecting rod 52 is inserted into a connection groove 42. The connection groove 42 is opened at the top end of a sealing ball 43. Auxiliary sealing mechanisms are arranged on the left and right sides of the sealing ball 43. The auxiliary sealing mechanisms can improve the sealing performance inside the ball valve main body 1. A moving mechanism is arranged at the front end of the sealing ball 43. The moving mechanism can separate a sealing ring 29 from the sealing ball 43 when the sealing ball 43 is in an open state, so as to reduce the wear of the sealing ring 29 and facilitate the extension of the service life of the sealing ring 29.

[0034] Further, the auxiliary sealing mechanisms include two groups of sealing rings 41. The sealing rings 41 are close to the left and right sides of the sealing ball 43. Two groups of connecting springs 37 are fixedly connected to the side of the sealing ring 41 away from the sealing ball 43. The side of the connecting spring 37 away from the sealing ring 41 is fixedly connected to the inner wall of a movable groove 35. Slots corresponding to the connecting springs 37 are reserved on the inner wall of the movable groove 35. The movable groove 35 is opened on the inner wall of the ball valve main body 1. A groove 36 is opened on the inner wall of the ball valve main body 1. The top and bottom ends of the sealing ring 41 are respectively abutted against a second top block 51 and a first top block 47. The second top block 51 is fixedly connected to the bottom end of the connecting rod 52. The first top block 47 is fixedly connected to a rotating shaft 48. The bottom end of the rotating shaft 48 is rotatably connected to the inner wall of the ball valve main body 1. The top end of the rotating shaft 48 is fixedly connected to an inserting block 45. The inserting block 45 is inserted into the inside of a slot 44. The slot 44 is opened at the bottom end of the sealing ball 43.

[0035] Through the structural design of the auxiliary sealing mechanism, the function of auxiliary sealing inside the ball valve body 1 is realized, so as to cooperate with the sealing ring 29 to provide a better sealing effect, thereby reducing the replacement frequency of the sealing ring inside the ball valve body 1 and improving the reliability of the ball valve body 1 under long-term operation. During operation, the medium flows in from the front end of the ball valve body 1 and flows out from the rear end of the ball valve body 1. The bottom end of the connecting rod 52 is inserted into the connecting groove 42, and a connecting groove is provided at the top end of the connecting rod 52 for easy connection with the output shaft of the actuator. When the connecting rod 52 rotates, it will drive the sealing ball 43 to rotate inside the ball valve body 1. When the sealing ball 43 is completely in the open state, the second top block 51 fixed to the bottom end of the connecting rod 52 will abut against the top end of the sealing ring 41 and push the sealing ring 41 to move to both sides. The connecting spring 37 fixed to the sealing ring 41 will be compressed, and the sealing ring 41 will be received into the groove 36. A slot 44 is provided at the bottom end of the sealing ball 43, and a plug 45 is inserted into the slot 44. When the sealing ball 43 rotates, the plug 45 will drive the rotating shaft 48 to rotate. The first top block 47 fixed to the rotating shaft 48 can push the bottom end of the sealing ring 41. Similarly, when the sealing ball 43 is closed, the sealing ring 41 can be reset under the action of the connecting spring 37 and fit with the surface of the sealing ball 43. The two groups of sealing rings 41 can improve the sealing performance between the left and right sides of the sealing ball 43 and the inner wall of the ball valve body 1 when the sealing ball 43 is in the closed state. Among them, the sealing ring 41 fits with the inner wall of the groove 36, and the mounting rod 53 is threadedly connected to the extension column 20 for easy disassembly and assembly of the mounting rod 53.

[0036] Furthermore, the moving mechanism includes a mounting ring 25. A filter screen 22 is fixedly connected to the inner wall of the mounting ring 25. The left and right sides of the mounting ring 25 are fixedly connected to the connecting block 34 by screws. The side of the connecting block 34 away from the mounting ring 25 is fixedly connected to the first moving block 26. A threaded groove is provided in the inner wall of the first moving block 26. The first moving block 26 is slidably connected to the rear end of the rotating rod 27. The front and rear sides of the rotating rod 27 are rotatably connected to the inner wall of the movable groove 35. Helical lines are provided on both the front and rear sides of the rotating rod 27 and the helix directions are opposite. The front end of the rotating rod 27 is slidably connected to the second moving block 28. The second moving block 28 is fixedly connected to the metal ring 31. The metal ring 31 is fixedly connected to the front end of the sealing ring 29. The front end of the metal ring 31 is designed with a hollow. A plurality of support springs 33 are fixedly connected to the inner wall of the metal ring 31. The front ends of the support springs 33 are fixedly connected to the inner wall of the receiving groove 54. The receiving groove 54 is provided at the rear end of the fixed ring 21. The fixed ring 21 is fixedly connected to the inner wall of the ball valve body 1. The fixed ring 21 is located in front of the sealing ball 43;

[0037] Through the structural design of the moving mechanism, when the sealing ball 43 is in the open state, the sealing ring 29 that originally contacted the sealing ball 43 will move away from the sealing ball 43, so as to separate from the sealing ball 43, reduce the wear of the sealing ring 29, and at the same time, after the sealing ball 43 is closed, the sealing ring 29 can be reset under the action of the support spring 33 and contact the surface of the sealing ball 43 again, so that the sealing ball 43 can normally seal the inside of the ball valve body 1. Through the structural design of the filter screen 22, the filter screen 22 can filter the medium conveyed inside the ball valve body 1, filter the possible impurities and particulate matters in the medium, and avoid the impurities and particulate matters from jamming the ball valve or subsequent equipment. When working, after the sealing ball 43 is opened, the medium will flow inside the ball valve body 1. The mounting ring 25 will move under the impact of the medium. When the mounting ring 25 moves, the first moving block 26 will slide on the rotating rod 27. The spiral line formed on the inner wall of the first moving block 26 can drive the rotating rod 27 to rotate. The first moving block 26 moves backward along the rotating rod 27 while the second moving block 28 moves forward along the rotating rod 27. The second moving block 28 is fixed to the metal ring 31 and pushes the metal ring 31 forward. Multiple groups of support springs 33 fixed on the inner wall of the metal ring 31 will be compressed. The extension column 20 fixed to the rear end of the metal ring 31 will also move away from the sealing ball 43 and no longer contact the surface of the sealing ball 43, thereby reducing the wear of the sealing ring 29. Similarly, when the sealing ball 43 is closed, the support spring 33 will push the metal ring 31 backward, so that the sealing ring 29 can keep in contact with the surface of the sealing ball 43. At the same time, under the action of the support spring 33, the wear on the sealing ring 29 can be automatically compensated. A notch corresponding to the rotating rod 27 is provided at the middle position of the sealing ring 41, so that when the sealing ring 41 is received in the groove 36, the sealing ring 41 will not affect the normal rotation of the rotating rod 27.

[0038] Furthermore, the inner wall of the receiving groove 54 fits with the metal ring 31. Multiple groups of inserting posts 32 are fixedly connected to the inner wall of the receiving groove 54. The inserting posts 32 penetrate through the sealing ring 29 and the metal ring 31;

[0039] When working, multiple groups of inserting posts 32 are fixed on the inner wall of the receiving groove 54. The support springs 33 are sleeved on the inserting posts 32. The rear ends of the inserting posts 32 penetrate through the sealing ring 29 and the metal ring 31, and can guide the metal ring 31 to ensure that the sealing ring 29 and the metal ring 31 can move stably in the horizontal direction.

[0040] Furthermore, limit posts 23 are fixedly connected to the top and bottom ends of the mounting ring 25. The limit posts 23 are slidably connected inside the limit grooves 24. The limit posts 23 contact the inner walls of the limit grooves 24. The limit grooves 24 are opened at the top and bottom ends of the inner wall of the ball valve body 1;

[0041] During operation, when the mounting ring 25 moves, the limiting posts 23 fixed to the top and bottom ends of the mounting ring 25 will slide in the limiting grooves 24. Through the contact between the limiting posts 23 and the inner wall of the limiting grooves 24, the movement of the mounting ring 25 is guided and limited to facilitate the stable movement of the mounting ring 25.

[0042] Furthermore, an annular groove 49 is formed in the mounting rod 53, and a rubber ring 50 is fixedly connected to the inner wall of the annular groove 49. The bottom end of the rubber ring 50 abuts against the top end of the extension post 20.

[0043] During operation, the mounting rod 53 is threadedly connected to the extension post 20, which is convenient for disassembly and installation during maintenance. The rubber ring 50 can improve the sealing performance between the mounting rod 53 and the top end of the extension post 20, ensuring that the connection between the extension post 20 and the mounting rod 53 is not prone to leakage.

[0044] Furthermore, two sets of support blocks 46 are fixedly connected to the position of the rotating shaft 48 near the top end. The support blocks 46 are in contact with the bottom end of the insertion block 45, and the top end of the support blocks 46 is in contact with the bottom end of the sealing ball 43.

[0045] During operation, the support blocks 46 are fixed to the rotating shaft 48 and are in contact with the bottom end of the sealing ball 43. By providing support to the bottom end of the sealing ball 43 through the support blocks 46, it is convenient for the normal rotation of the sealing ball 43 inside the ball valve body 1.

[0046] Furthermore, a fixing plate 39 is fixedly connected to the inner wall of the sealing ball 43. A plurality of circular holes 40 are formed in the fixing plate 39, and the fixing plate 39 is perpendicular to the sealing ring 41.

[0047] During operation, the fixing plate 39 is fixed to the sealing ball 43. When the sealing ball 43 is in the closed state, the sealing ring 41 will contact the side of the fixing plate 39. A plurality of circular holes 40 are formed in the fixing plate 39, and the circular holes 40 penetrate through the fixing plate 39 to ensure the smooth flow of the medium when the sealing ball 43 is in the open state, avoiding a large interference of the fixing plate 39 on the flow of the medium.

[0048] Embodiment Two

[0049] Please refer to Figure 8 As shown, as another implementation manner of the present invention compared with Embodiment One, the bottom end of the connecting rod 52 is designed in a rectangular shape. The bottom end of the connecting rod 52 is in contact with the inner wall of the connecting groove 42, and the insertion block 45 is in contact with the inner wall of the insertion slot 44.

[0050] During operation, the bottom end of the connecting rod 52 and the inner wall of the connecting groove 42 as well as the insertion block 45 and the inner wall of the insertion slot 44 are all in close contact with each other, so that during the rotation process of the sealing ball 43, there will be no collision between the bottom end of the connecting rod 52 and the inner wall of the connecting groove 42 as well as between the insertion block 45 and the inner wall of the insertion slot 44.

[0051] The cross-section of the mounting rod 53 is designed in a T shape, and the top end of the mounting rod 53 is in contact with the top end of the extension column 20;

[0052] During operation, the cross-section of the mounting rod 53 is designed in a T shape so that after the mounting rod 53 is tightened in place, the mounting rod 53 can avoid further turning of the mounting rod 53 by abutting against the top end of the extension column 20, and prevent the bottom end of the mounting rod 53 from abutting against the top end of the sealing ball 43, which may cause difficulty in rotating the sealing ball 43.

[0053] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and all these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A regulating ball valve body, comprising a ball valve main body (1) and a sealing ball (43), wherein an extension column (20) is fixedly connected to the top end of the ball valve main body (1), and is characterized in that: The inner wall of the extension column (20) is threadedly connected with an installation rod (53). The inner part of the installation rod (53) is rotatably connected with a connecting rod (52). The bottom end of the connecting rod (52) is inserted into a connecting groove (42). The connecting groove (42) is opened at the top end of a sealing ball (43). Auxiliary sealing mechanisms are arranged on the left and right sides of the sealing ball (43). The auxiliary sealing mechanisms can improve the sealing performance inside the ball valve body (1). A moving mechanism is arranged at the front end of the sealing ball (43). The moving mechanism includes a sealing ring (29). The moving mechanism can separate the sealing ring (29) from the sealing ball (43) when the sealing ball (43) is in an open state, so as to reduce the wear of the sealing ring (29) and facilitate the extension of the service life of the sealing ring (29).

2. The regulating ball valve body according to claim 1, characterized in that: The auxiliary sealing mechanisms include two groups of sealing rings (41). The sealing rings (41) are close to the left and right sides of the sealing ball (43). On the side of the sealing ring (41) away from the sealing ball (43), two groups of connecting springs (37) are fixedly connected. On the side of the connecting spring (37) away from the sealing ring (41), a movable groove (35) is fixedly connected. A slot corresponding to the connecting spring (37) is reserved on the inner wall of the movable groove (35). The movable groove (35) is opened on the inner wall of the ball valve body (1). A groove (36) is opened on the inner wall of the ball valve body (1). A second top block (51) is arranged at the top end of the sealing ring (41). A first top block (47) is arranged at the bottom end of the sealing ring (41). The top end and the bottom end of the sealing ring (41) are respectively in contact with the second top block (51) and the first top block (47). The second top block (51) is fixedly connected with a connecting rod (52). The first top block (47) is fixedly connected with a rotating shaft (48). The bottom end of the rotating shaft (48) is rotatably connected with the inner wall of the ball valve body (1). The top end of the rotating shaft (48) is fixedly connected with an inserting block (45). The inserting block (45) is inserted into a slot (44). The slot (44) is opened at the bottom end of the sealing ball (43).

3. The regulating ball valve body according to claim 1, characterized in that: The moving mechanism further includes a mounting ring (25). The inner wall of the mounting ring (25) is fixedly connected with a filter screen (22). The left and right sides of the mounting ring (25) are fixedly connected with connecting blocks (34) by screws. One side of the connecting block (34) away from the mounting ring (25) is fixedly connected with a first moving block (26). A threaded groove is provided in the inner wall of the first moving block (26). The first moving block (26) is slidably connected with a rotating rod (27). The front and rear sides of the rotating rod (27) are rotatably connected to the inner wall of the moving groove (35). Helical lines are provided on the front and rear sides of the rotating rod (27) and the helix directions are opposite. The front end of the rotating rod (27) is slidably connected with a second moving block (28). The second moving block (28) is fixedly connected with a metal ring (31). The metal ring (31) is fixedly connected to the front end of the sealing ring (29). The front end of the metal ring (31) is designed with a hollow. A plurality of support springs (33) are fixedly connected to the inner wall of the metal ring (31). The front end of the support spring (33) is fixedly connected with a receiving groove (54). A fixing ring (21) is fixedly connected to the inner wall of the ball valve body (1). The receiving groove (54) is provided at the rear end of the fixing ring (21). The fixing ring (21) is located in front of the sealing ball (43).

4. A regulating ball valve body according to claim 3, characterized in that: The inner wall of the receiving groove (54) is in contact with the metal ring (31). A plurality of insertion posts (32) are fixedly connected to the inner wall of the receiving groove (54). The insertion posts (32) penetrate through the sealing ring (29) and the metal ring (31).

5. The adjustable ball valve body according to claim 3, characterized in that: Limit posts (23) are fixedly connected to the top and bottom of the mounting ring (25). The limit posts (23) are slidably connected with limit grooves (24). The limit posts (23) are in contact with the inner walls of the limit grooves (24). The limit grooves (24) are provided at the top and bottom of the inner wall of the ball valve body (1).

6. The adjustable ball valve body according to claim 2, wherein: An annular groove (49) is provided on the mounting rod (53). A rubber ring (50) is fixedly connected to the inner wall of the annular groove (49). The bottom end of the rubber ring (50) abuts against the top end of the extension post (20).

7. The regulating ball valve body according to claim 2, wherein: Two support blocks (46) are fixedly connected to the position of the rotating shaft (48) close to the top. The support blocks (46) are in contact with the bottom end of the insertion block (45). The top end of the support block (46) is in contact with the bottom end of the sealing ball (43).

8. The regulating ball valve body according to claim 3, characterized in that: A fixing plate (39) is fixedly connected to the inner wall of the sealing ball (43). A plurality of round holes (40) are provided on the fixing plate (39). The fixing plate (39) is perpendicular to the sealing ring (41).

9. The regulating ball valve body according to claim 2, characterized in that: The bottom end of the connecting rod (52) is designed in a rectangular shape. The bottom end of the connecting rod (52) is in contact with the inner wall of the connecting groove (42). The insertion block (45) is in contact with the inner wall of the insertion slot (44).

10. A regulating ball valve body according to claim 6, characterized in that: The cross-section of the mounting rod (53) is designed in a T shape. The top end of the mounting rod (53) is in contact with the top end of the extension post (20).

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