An adjustable three-way stop valve

Abstract

The present application belongs to the field of three-way stop valve, especially to an adjustable three-way stop valve, aiming at the problem of the existing three-way stop valve that the internal parts of the valve wear during use, causing the sealing to be not tight and foreign matters to be easily stuck in the valve, the present application proposes the following scheme, which comprises a valve body bearing medium pressure and a spherical valve controlling the flow of fluid in the channel, the spherical valve is located in the interior of the valve body, a T-shaped through hole is opened in the interior of the spherical valve, a pneumatic transmission device for power output is arranged on the top of the valve body, in the present application, by arranging the valve body, the spherical valve, the T-shaped through hole, the pneumatic transmission device, the mounting frame, the connecting piece, the telescopic transmission structure, the rotary sealing structure, the first transmission gear and the rotary transmission structure, the problem of the existing three-way stop valve that the internal parts of the valve wear during use, causing the sealing to be not tight and foreign matters to be easily stuck in the valve is solved.

Description

Technical Field

[0001] This invention relates to the field of three-way shut-off valve technology, and more particularly to an adjustable three-way shut-off valve. Background Technology

[0002] A three-way gate valve is a common type of valve used in piping systems. It has three channels: one inlet, one outlet, and the third can connect to another pipe or piece of equipment. The three-way gate valve controls the flow of fluid between the three channels. When the valve is closed, it cuts off the flow of fluid between the three channels, thus acting as a shut-off valve. This type of valve is widely used in industries such as chemical, petroleum, and natural gas to control and regulate parameters such as flow rate, pressure, and temperature of fluids.

[0003] A three-way shut-off valve, application number 96216968.4, is disclosed on the patent website. This utility model relates to a three-way shut-off valve, characterized by a cylindrical valve core and valve body cavity. A three-way through-hole is formed in the cylindrical portion of the valve core, and the valve body also has a three-way through-hole consistent with the valve core. Rotating the valve core allows it to be in five states: three-way, 90° bypass, 180° direct flow, and shut-off. The advantages of this design are its flexible and convenient use and control. It can easily and flexibly control the flow direction of the heat source in water heating systems, whether used alone or in combination. Furthermore, it has a simple structure, is easy to manufacture and assemble, and can also be used in other industrial and civil applications requiring control of fluid flow direction.

[0004] The problems with the above technology are as follows: the three-way shut-off valve may encounter the following problems during use: aging or damage to the sealing gasket may cause water leakage, requiring replacement of the sealing gasket; wear of internal valve parts may cause poor sealing, requiring replacement of the corresponding parts or the entire valve; scale or foreign objects inside the valve may cause difficulty in opening and closing or inability to close completely. Summary of the Invention

[0005] The purpose of this invention is to solve the problems of wear and tear on internal parts of the three-way shut-off valve during use, resulting in poor sealing and easy jamming of the valve by foreign objects, and to propose an adjustable three-way shut-off valve.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An adjustable three-way shut-off valve includes a valve body that withstands the pressure of a medium and a ball valve that controls the flow of fluid in a channel. The ball valve is located inside the valve body and has a T-shaped through hole inside.

[0008] The top of the valve body is provided with a pneumatic transmission device for power output, and the bottom of the pneumatic transmission device is fixedly connected with a mounting bracket for fixing the valve body.

[0009] The valve body has three connectors fixedly connected to its surface, which are distributed on both sides and the front side of the valve body.

[0010] The output end of the pneumatic transmission device is fixedly connected to a telescopic transmission structure for telescopic connection, and the bottom of the telescopic transmission structure is fixedly connected to a rotary sealing structure for flow regulation of the ball valve.

[0011] The surface of the telescopic transmission structure is fixedly connected to a first transmission gear, and the surface of the first transmission gear is engaged with a rotary transmission structure for rotating the ball valve.

[0012] Preferably, the telescopic transmission structure includes a first fixed column for power transmission, the top of which is fixedly connected to the output end of the pneumatic transmission device. A movable disk is disposed inside the first fixed column, and a pushing structure for moving the movable disk is fixedly connected to the surface of the movable disk. A second fixed column is fixedly connected to the bottom of the movable disk, the bottom of the second fixed column passes through the first fixed column and extends to the bottom of the first fixed column. A third fixed column is fixedly connected to the bottom of the second fixed column, the surface of the third fixed column is fixedly connected to the interior of the first transmission gear, and a cross block is fixedly connected to the bottom of the third fixed column. The bottom of the cross block engages with the top of the rotary transmission structure.

[0013] Preferably, the rotary sealing structure includes a second transmission gear meshing with a first transmission gear, a fourth fixed post fixedly connected to the bottom of the second transmission gear, the bottom of the fourth fixed post penetrating the valve body and extending into the interior of the valve body, a third transmission gear fixedly connected to the bottom of the fourth fixed post, a gear ring for transmission meshing on the surface of the third transmission gear, and the bottom of the gear ring fixedly connected to the top of the ball valve.

[0014] Preferably, the rotary transmission structure includes a fifth fixed column that cooperates with the cross block. The top of the fifth fixed column has a cross groove that engages with the cross block. The bottom of the surface of the fifth fixed column has a thread. A sealing column is threaded to the bottom of the surface of the fifth fixed column. The ball valve has a moving groove inside for moving the sealing column. The moving groove communicates with the T-shaped through hole.

[0015] Preferably, the pushing structure includes a first fixed ring for pushing, four connecting blocks are provided between the first fixed ring and the movable disk, the two sides of the four connecting blocks are respectively fixedly connected to the movable disk and the interior of the first fixed ring, a second fixed ring is movably connected to the interior of the first fixed ring, and the surface of the second fixed ring is provided with anti-slip texture.

[0016] Preferably, a return spring is sleeved on the surface of the second fixed column, the top of the return spring is fixedly connected to the bottom of the movable disk, and the bottom of the return spring is fixedly connected to the bottom of the inner wall of the first fixed column. A first sealing ring is sleeved on both the top and bottom of the surface of the ball valve, and the first sealing ring is used to seal the ball valve and the valve body.

[0017] Preferably, a bearing for limiting the fifth fixed column is fixedly connected to the surface of the fifth fixed column, the surface of the bearing is fixedly connected to the interior of the ball valve, and a second sealing ring for sealing the fifth fixed column is provided between the fifth fixed column and the valve body.

[0018] Preferably, the surface of the first fixing post is provided with a moving opening for the connecting block to move, the interior of the second fixing ring is provided with a number of balls for the rotation of the second fixing ring, and the balls are evenly distributed inside the second fixing ring. The surface of the first fixing ring is provided with a limiting groove for limiting the balls.

[0019] Preferably, the ball valve has an opening groove at its bottom, and a disc for limiting the ball valve is provided inside the opening groove. A bolt is fixedly connected to the bottom of the disc, and the bottom of the bolt penetrates the valve body and extends to the bottom of the valve body. The surface of the bolt is connected to the internal thread of the valve body.

[0020] Beneficial effects

[0021] 1. In this invention, by setting up a valve body, a ball valve, a T-shaped through hole, a pneumatic transmission device, a mounting bracket, a connecting piece, a telescopic transmission structure, a rotary sealing structure, a first transmission gear, and a rotary transmission structure, the pneumatic transmission device can drive the rotary sealing structure to rotate, thereby causing the ball valve to rotate and seal the valve body. The downward movement of the telescopic transmission structure will drive the rotary transmission structure, allowing the rotary transmission structure to adjust the flow rate inside the ball valve and also play a sealing role. This solves the problem in the prior art where the internal parts of the three-way gate valve wear during use, resulting in poor sealing and foreign objects easily jamming the valve.

[0022] 2. In this invention, by setting a telescopic transmission structure, a pneumatic transmission device can drive the first fixed column to rotate, the first fixed column drives the movable disk to rotate, the movable disk drives the second fixed column to rotate, the second fixed column drives the third fixed column to rotate, and the third fixed column drives the first transmission gear to drive the rotation of the rotating sealing structure. When it is necessary to drive the fifth fixed column, the downward pushing structure is moved, the pushing structure drives the movable disk to move downward, the movable disk drives the second fixed column to move downward, the second fixed column drives the third fixed column to move downward, and the third fixed column drives the cross block to move downward, so that the cross block drives the fifth fixed column to rotate.

[0023] 3. In this invention, by setting a rotary sealing structure, when the first transmission gear drives the second transmission gear to rotate, the second transmission gear drives the fourth fixed column to rotate, the fourth fixed column drives the third transmission gear to rotate, and the third transmission gear, through meshing with the gear ring, causes the gear ring to drive the ball valve to rotate, so that the ball valve seals or opens the valve body.

[0024] 4. In this invention, by setting a rotary transmission structure, when the cross block is inserted into the cross groove of the fifth fixed post, due to the rotation of the third fixed post, the third fixed post drives the fifth fixed post to rotate through the cross block. The fifth fixed post, through its threaded engagement with the sealing post, drives the sealing post to move up and down, so that the sealing post moves up and down in the moving groove, thereby achieving the purpose of opening or closing the T-shaped through hole.

[0025] 5. In this invention, by setting a pushing structure, when the first fixed column and the moving disk rotate, the moving disk will drive the connecting block to rotate, and the connecting block will drive the first fixed ring to rotate. Since the second fixed ring and the first fixed ring are movably connected, the user can hold the second fixed ring and move it downward. The second fixed ring will drive the first fixed ring to move downward, and the first fixed ring will drive the connecting block to move downward, so that the connecting block will drive the moving disk to move downward. The moving disk will drive the second fixed column and the third fixed column to move downward, so that the third fixed column will drive the cross block to engage with the fifth fixed column for rotation, which facilitates the transfer of power. When the third fixed column moves downward, the third fixed column will drive the first transmission gear to disengage from the surface of the second transmission gear.

[0026] 6. In this invention, by setting a reset spring and a first sealing ring, when the moving disc squeezes the reset spring, the reset spring rebounds the moving disc, and the moving disc drives the second fixed column to move upward, which can facilitate the reset of the moving disc, thereby causing the third fixed column to retract. The first sealing ring can increase the sealing between the ball valve and the valve body.

[0027] 7. In this invention, by setting a bearing and a second sealing ring, the stability of the fifth fixed column can be increased and the shaking of the fifth fixed column can be reduced. The second sealing ring can increase the sealing between the fifth fixed column and the valve body.

[0028] 8. In this invention, by setting a movable opening, a ball bearing, and a limiting groove, the movement of the connecting block can be facilitated, and jamming of the movable block can be avoided. The ball bearing facilitates the rotation between the second fixed ring and the first fixed ring, and the limiting groove can limit the position of the ball bearing.

[0029] 9. In this invention, by setting an opening groove, a disc, and a bolt, the spherical valve can be easily fixed. By rotating the bolt, the bolt drives the disc to be inserted into the spherical valve, thereby limiting and fixing the spherical valve, so that the spherical valve can rotate stably. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural diagram of an adjustable three-way shut-off valve proposed in this invention.

[0031] Figure 2 This is a three-dimensional cross-sectional view of the valve body of an adjustable three-way shut-off valve proposed in this invention.

[0032] Figure 3 This is a three-dimensional cross-sectional view of a ball valve of an adjustable three-way shut-off valve proposed in this invention.

[0033] Figure 4 This is a three-dimensional schematic diagram of the first transmission gear of an adjustable three-way shut-off valve proposed in this invention.

[0034] Figure 5 This is an exploded three-dimensional schematic diagram of the actuation structure of an adjustable three-way shut-off valve proposed in this invention.

[0035] Figure 6 This is an enlarged structural diagram of part A of an adjustable three-way shut-off valve proposed in this invention.

[0036] Figure 7 This is an enlarged schematic diagram of part B of an adjustable three-way shut-off valve proposed in this invention.

[0037] Figure 8 This is an enlarged structural diagram of part C of an adjustable three-way shut-off valve proposed in this invention.

[0038] In the diagram: 1. Valve body; 2. Ball valve; 3. T-shaped through hole; 4. Pneumatic transmission device; 5. Mounting bracket; 6. Connecting piece; 7. First transmission gear; 8. First fixed post; 9. Moving disc; 10. Second fixed post; 11. Third fixed post; 12. Cross block; 13. Second transmission gear; 14. Fourth fixed post; 15. Third transmission gear; 16. Gear ring; 17. Fifth fixed post; 18. Cross groove; 19. Sealing post; 20. Moving groove; 21. First fixed ring; 22. Connecting block; 23. Second fixed ring; 24. Return spring; 25. First sealing ring; 26. Bearing; 27. Second sealing ring; 28. Moving opening; 29. ​​Ball; 30. Limiting groove; 31. Opening groove; 32. Disc; 33. Bolt. Detailed Implementation

[0039] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0040] Example 1

[0041] Reference Figure 1-8 An adjustable three-way shut-off valve includes a valve body 1 that withstands the pressure of the medium and a ball valve 2 that controls the flow of fluid in the channel. The ball valve 2 is located inside the valve body 1 and has a T-shaped through hole 3 inside.

[0042] The top of the valve body 1 is provided with a pneumatic transmission device 4 for power output, and the bottom of the pneumatic transmission device 4 is fixedly connected with a mounting bracket 5 for fixed connection of the valve body 1.

[0043] Three connectors 6 are fixedly connected to the surface of the valve body 1, and they are distributed on both sides and the front side of the valve body 1.

[0044] The output end of the pneumatic transmission device 4 is fixedly connected to a telescopic transmission structure for telescopic connection, and the bottom of the telescopic transmission structure is fixedly connected to a rotary sealing structure for flow regulation of the ball valve 2.

[0045] The surface of the telescopic transmission structure is fixedly connected to a first transmission gear 7, and the surface of the first transmission gear 7 is meshed with a rotary transmission structure for rotating the ball valve 2.

[0046] Example 2

[0047] An improvement on Embodiment 1: It includes a valve body 1 that withstands the pressure of the medium and a ball valve 2 that controls the flow of fluid in the channel. The ball valve 2 is located inside the valve body 1, and a T-shaped through hole 3 is provided inside the ball valve 2. A pneumatic transmission device 4 for power output is provided on the top of the valve body 1. A mounting bracket 5 for fixing the valve body 1 is fixedly connected to the bottom of the pneumatic transmission device 4. Connecting parts 6 are fixedly connected to the surface of the valve body 1. There are three connecting parts 6, distributed on both sides and the front of the valve body 1. A telescopic transmission structure for telescopic connection is fixedly connected to the output end of the pneumatic transmission device 4. A rotary sealing structure for flow regulation of the ball valve 2 is fixedly connected to the bottom of the telescopic transmission structure. A first... The transmission gear 7 has a surface meshing with a rotary transmission structure for rotating the ball valve 2. The telescopic transmission structure includes a first fixed column 8 for power transmission. The top of the first fixed column 8 is fixedly connected to the output end of the pneumatic transmission device 4. A movable disk 9 is disposed inside the first fixed column 8. A pushing structure for moving the movable disk 9 is fixedly connected to the surface of the movable disk 9. A second fixed column 10 is fixedly connected to the bottom of the movable disk 9. The bottom of the second fixed column 10 passes through the first fixed column 8 and extends to the bottom of the first fixed column 8. A third fixed column 11 is fixedly connected to the bottom of the second fixed column 10. The surface of the third fixed column 11 is fixedly connected to the interior of the first transmission gear 7. A cross block 12 is fixedly connected to the bottom of the third fixed column 11. The bottom of the cross block 12 engages with the top of the rotary transmission structure, enabling the pneumatic transmission device 4 to drive the first fixed column 8 to rotate. The first fixed column 8 drives the movable disk 9 to rotate, which in turn drives the second fixed column 10 to rotate. The second fixed column 10 drives the third fixed column 11 to rotate, which in turn drives the first transmission gear 7 to rotate. This, in turn, drives the rotary sealing structure to rotate. When it is necessary to drive the fifth fixed column 17, the downward pushing structure moves the movable disk 9 downward. The movable disk 9 then drives the second fixed column 10 downward, which in turn drives the third fixed column 11 downward. The third fixed column 11 then drives the cross block 12 downward, causing the cross block to rotate. 12 drives the fifth fixed column 17 to rotate. The rotary sealing structure includes a second transmission gear 13 meshing with the first transmission gear 7. A fourth fixed column 14 is fixedly connected to the bottom of the second transmission gear 13. The bottom of the fourth fixed column 14 penetrates the valve body 1 and extends into the interior of the valve body 1. A third transmission gear 15 is fixedly connected to the bottom of the fourth fixed column 14. A gear ring 16 for transmission meshes with the surface of the third transmission gear 15. The bottom of the gear ring 16 is fixedly connected to the top of the ball valve 2. When the first transmission gear 7 drives the second transmission gear 13 to rotate, the second transmission gear 13 drives the fourth fixed column 14 to rotate, and the fourth fixed column 14 drives the third transmission gear 15 to rotate. The third transmission gear 15 meshes with the gear ring 16.The gear ring 16 drives the ball valve 2 to rotate, causing the ball valve 2 to seal or open the valve body 1. The rotary transmission structure includes a fifth fixed post 17 that cooperates with the cross block 12. The top of the fifth fixed post 17 has a cross groove 18 that engages with the cross block 12. The bottom of the surface of the fifth fixed post 17 has a thread, and a sealing post 19 is connected to the thread on the bottom of the surface of the fifth fixed post 17. The ball valve 2 has a moving groove 20 for moving the sealing post 19. The moving groove 20 communicates with the T-shaped through hole 3. When the cross block 12 is engaged in the cross groove 18 of the fifth fixed post 17, due to the rotation of the third fixed post 11, the third fixed post 11 drives the fifth fixed post 17 to rotate through the cross block 12. The fifth fixed post 17, through its threaded engagement with the sealing post 19, causes the sealing post 19 to move up and down within the moving groove 20, thereby opening or closing the T-shaped through hole 3. The pushing structure includes a first fixed ring 21 for pushing. Four connecting blocks 22 are provided between the first fixed ring 21 and the moving disk 9. The two sides of the four connecting blocks 22 are fixedly connected to the inside of the moving disk 9 and the first fixed ring 21, respectively. A second fixed ring 23 is movably connected inside the first fixed ring 21. The surface of the second fixed ring 23 has anti-slip textures. When the first fixed post 8 and the moving disk 9 rotate, the moving disk 9 drives the connecting blocks 22 to rotate, and the connecting blocks 22 drive the first fixed ring 21 to rotate. Because the second fixed ring 23 and the first fixed ring 21 are movably connected, the user can hold the second fixed ring 23 and move it downwards. The second fixed ring 23 drives the first fixed ring 21 downwards, and the first fixed ring 21 drives the connecting block 22 downwards. This causes the connecting block 22 to drive the moving disk 9 downwards, and the moving disk 9 drives the second fixed post 10 and the third fixed post 11 downwards. This causes the third fixed post 11 to drive the cross block 12 to engage with the fifth fixed post 17 for rotation, facilitating the transfer of power. When the third fixed post 11 moves downwards, it will cause the first transmission gear 7 to disengage from the surface of the second transmission gear 13. A return spring 24 is sleeved on the surface of the second fixed post 10. The top of the ball valve 2 is fixedly connected to the bottom of the movable disc 9, and the bottom of the return spring 24 is fixedly connected to the bottom of the inner wall of the first fixed column 8. The top and bottom of the ball valve 2 are both fitted with first sealing rings 25, which are used to seal the ball valve 2 and the valve body 1. When the movable disc 9 presses the return spring 24, the return spring 24 rebounds the movable disc 9, causing the movable disc 9 to move upwards, facilitating the reset of the movable disc 9. This allows the third fixed column 11 to retract. The first sealing ring 25 increases the sealing between the ball valve 2 and the valve body 1. A bearing 26 for limiting the fifth fixed column 17 is fixedly connected to the surface of the fifth fixed column 17, and the surface of the bearing 26 is fixedly connected to the interior of the ball valve 2.A second sealing ring 27 is provided between the fifth fixed post 17 and the valve body 1 to seal the fifth fixed post 17, which can increase the stability of the fifth fixed post 17 and reduce its shaking. The second sealing ring 27 can increase the sealing between the fifth fixed post 17 and the valve body 1. The surface of the first fixed post 8 has a moving opening 28 for the movement of the connecting block 22. The interior of the second fixed ring 23 is provided with several balls 29 for the rotation of the second fixed ring 23. The number of balls 29 is evenly distributed inside the second fixed ring 23. The surface of the first fixed ring 21 has a limiting groove 30 for limiting the movement of the balls 29, which can facilitate the movement of the connecting block 22 and prevent the moving block from moving. To prevent jamming, the ball bearing 29 allows for easy rotation between the second fixed ring 23 and the first fixed ring 21. The limiting groove 30 limits the position of the ball bearing 29. The bottom of the ball valve 2 has an opening groove 31, inside which is a disc 32 for limiting the ball valve 2. A bolt 33 is fixedly connected to the bottom of the disc 32, penetrating the valve body 1 and extending to its bottom. The surface of the bolt 33 is threaded into the valve body 1, facilitating the fixation of the ball valve 2. By rotating the bolt 33, the bolt 33 causes the disc 32 to engage inside the ball valve 2, limiting and fixing the ball valve 2, thus allowing it to rotate stably.

[0048] However, as is well known to those skilled in the art, the working principles and wiring methods of valve body 1, ball valve 2 and pneumatic transmission device 4 are commonplace and are all conventional means or common knowledge, so they will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0049] In this invention, when the user needs to use the valve, the three connectors 6 are first connected to the three pipes. When the spherical valve 2 needs to be rotated, the bolt 33 is first tightened. The bolt 33 drives the disc 32 to move, so that the bolt 33 drives the disc 32 to lock in the opening groove 31 inside the spherical valve 2, thereby limiting the movement of the spherical valve 2. By activating the pneumatic transmission device 4, the pneumatic transmission device 4 drives the first fixed column 8 to rotate. The first fixed column 8 drives the connecting block 22 to rotate. The connecting block 22 drives the moving disc 9 to rotate. The moving disc 9 drives the second fixed column 10 to rotate. The second fixed column 10 drives the third fixed column 11 to rotate, the third fixed column 11 drives the first transmission gear 7 and the second transmission gear 13 to rotate, the second transmission gear 13 drives the fourth fixed column 14 to rotate, the fourth fixed column 14 drives the third transmission gear 15 to rotate, the third transmission gear 15 drives the gear ring 16 to rotate, thereby causing the gear ring 16 to drive the ball valve body 1 to rotate. Through the cooperation between the ball valve 2 and the valve body 1, the shut-off between multiple pipelines is achieved. When scale or foreign objects accumulate between the ball valve 2 and the valve body 1 and jam the ball valve 2, the second fixed column 2... 3 is movably connected to the first fixed ring 21. The user can hold the second fixed ring 23 and move it downwards. The second fixed ring 23 drives the first fixed ring 21 downwards, and the first fixed ring 21 drives the connecting block 22 downwards. This causes the connecting block 22 to drive the moving disk 9 downwards. The moving disk 9 drives the second fixed post 10 and the third fixed post 11 downwards, so that the third fixed post 11 drives the cross block 12 to engage with the fifth fixed post 17 for rotation, facilitating the transfer of power. When the third fixed post 11 moves downwards, it will drive the first transmission gear 7 to disengage. When the cross block 12 is engaged in the cross groove 18 of the fifth fixed column 17, the rotation of the third fixed column 11 causes the fifth fixed column 17 to rotate via the cross block 12. The fifth fixed column 17, through its threaded engagement with the sealing column 19, causes the sealing column 19 to move up and down within the moving groove 20, thereby opening or closing the T-shaped through hole 3 and sealing or opening the ball valve 2. This effectively cuts off the flow path between the three channels, thus serving as a shut-off function.

[0050] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An adjustable three-way shut-off valve, comprising a valve body (1) subjected to medium pressure and a ball valve (2) for controlling the flow of fluid in a channel, characterized in that, The ball valve (2) is located inside the valve body (1), and a T-shaped through hole (3) is provided inside the ball valve (2). The top of the valve body (1) is provided with a pneumatic transmission device (4) for power output, and the bottom of the pneumatic transmission device (4) is fixedly connected with a mounting bracket (5) for fixed connection of the valve body (1). The valve body (1) has a fixed connection to a connector (6) on its surface. There are three connectors (6), which are distributed on both sides and the front side of the valve body (1). The output end of the pneumatic transmission device (4) is fixedly connected to a telescopic transmission structure for telescopic connection, and the bottom of the telescopic transmission structure is fixedly connected to a rotary transmission structure for flow regulation of the ball valve (2). The surface of the telescopic transmission structure is fixedly connected to a first transmission gear (7), and the surface of the first transmission gear (7) is meshed with a rotary sealing structure for rotating the ball valve (2). The telescopic transmission structure includes a first fixed column (8) for power transmission. The top of the first fixed column (8) is fixedly connected to the output end of the pneumatic transmission device (4). A movable disk (9) is provided inside the first fixed column (8). A pushing structure for moving the movable disk (9) is fixedly connected to the surface of the movable disk (9). A second fixed column (10) is fixedly connected to the bottom of the movable disk (9). The bottom of the second fixed column (10) passes through the first fixed column (8) and extends to the bottom of the first fixed column (8). A third fixed column (11) is fixedly connected to the bottom of the second fixed column (10). The surface of the third fixed column (11) is fixedly connected to the inside of the first transmission gear (7). A cross block (12) is fixedly connected to the bottom of the third fixed column (11). The bottom of the cross block (12) is engaged with the top of the rotary transmission structure. The rotary sealing structure includes a second transmission gear (13) meshing with a first transmission gear (7), a fourth fixed column (14) fixedly connected to the bottom of the second transmission gear (13), the bottom of the fourth fixed column (14) penetrating the valve body (1) and extending into the interior of the valve body (1), a third transmission gear (15) fixedly connected to the bottom of the fourth fixed column (14), a gear ring (16) for transmission meshing on the surface of the third transmission gear (15), and the bottom of the gear ring (16) fixedly connected to the top of the ball valve (2); The rotary transmission structure includes a fifth fixed column (17) that cooperates with the cross block (12). The top of the fifth fixed column (17) is provided with a cross groove (18) that engages with the cross block (12). The bottom of the surface of the fifth fixed column (17) is provided with a thread. The bottom of the surface of the fifth fixed column (17) is connected to a sealing column (19). The inside of the ball valve (2) is provided with a moving groove (20) for moving the sealing column (19). The moving groove (20) is connected to the T-shaped through hole (3).

2. The adjustable three-way shut-off valve according to claim 1, characterized in that, The pushing structure includes a first fixed ring (21) for pushing, and four connecting blocks (22) are provided between the first fixed ring (21) and the moving disk (9). The two sides of the four connecting blocks (22) are fixedly connected to the inside of the moving disk (9) and the first fixed ring (21), respectively. A second fixed ring (23) is movably connected inside the first fixed ring (21), and the surface of the second fixed ring (23) is provided with anti-slip texture.

3. The adjustable three-way shut-off valve according to claim 1, characterized in that, A reset spring (24) is fitted on the surface of the second fixed column (10). The top of the reset spring (24) is fixedly connected to the bottom of the moving disk (9), and the bottom of the reset spring (24) is fixedly connected to the bottom of the inner wall of the first fixed column (8). A first sealing ring (25) is fitted on the top and bottom of the surface of the ball valve (2). The first sealing ring (25) is used to seal the ball valve (2) and the valve body (1).

4. An adjustable three-way shut-off valve according to claim 1, characterized in that, The surface of the fifth fixed column (17) is fixedly connected to a bearing (26) for limiting the fifth fixed column (17), the surface of the bearing (26) is fixedly connected to the inside of the ball valve (2), and a second sealing ring (27) for sealing the fifth fixed column (17) is provided between the fifth fixed column (17) and the valve body (1).

5. An adjustable three-way shut-off valve according to claim 2, characterized in that, The surface of the first fixed post (8) is provided with a moving opening (28) for the moving of the connecting block (22). The interior of the second fixed ring (23) is provided with a ball (29) for the rotation of the second fixed ring (23). The number of the ball (29) is several and they are evenly distributed inside the second fixed ring (23). The surface of the first fixed ring (21) is provided with a limiting groove (30) for limiting the ball (29).

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