Reducing sealing three-way valve

Abstract

The utility model relates to the technical field of variable-diameter valves, and discloses a variable-diameter sealing three-way valve which comprises a fixing block, one side of the interior of the fixing block is fixedly connected with a first fixing pipe, one side of the interior of the fixing block is fixedly connected with a second fixing pipe, one end of the first fixing pipe is fixedly connected with a three-way hose, and the other end of the first fixing pipe is fixedly connected with a second fixing pipe. One end of the three-way hose is fixedly connected to one end of the second fixing pipe, one end of the three-way hose is fixedly connected with a movable pipe, and one end of the movable pipe, one end of the first fixing pipe and one end of the second fixing pipe are fixedly connected with connecting pipes. According to the pipeline fixing device, when a pipeline is connected, a driving block is rotated to push a limiting rod, so that a sliding column is controlled to push a piston plate to slide in a pressurizing column, gas in the pressurizing column can be injected into a first air bag and a second air bag, the first air bag and the second air bag are expanded to fix the pipeline, and therefore fixing of pipelines of different sizes is achieved; the problem that the caliber of the three-way valve is fixed is solved, and the applicability of the three-way valve is improved.

Description

Technical Field

[0001] This utility model relates to the field of variable diameter valve technology, and in particular to a variable diameter sealing three-way valve. Background Technology

[0002] A three-way valve is a pipeline control device with three connection ports, effectively enabling fluid diversion, merging, and flow direction switching. This type of valve is widely used in industrial production, civil engineering, and many other fields, favored for its importance and versatility in fluid control systems. The design of a three-way valve allows fluid to enter from one inlet and then be distributed to either of the two outlets as needed, or to enter from both inlets simultaneously, mix inside the valve, and then flow out from one outlet. This flexibility makes three-way valves crucial in various industries such as chemical engineering, water treatment, heating systems, air conditioning systems, and food processing. They not only improve the efficiency of fluid transmission but also help control and regulate system operation, ensuring the stability and safety of the entire system.

[0003] However, the diameter of most three-way valves on the market is fixed. This causes a problem when connecting pipes of different diameters (such as when there is a large difference in diameter between the main pipe and the branch pipe). Because the fixed-diameter three-way valve cannot be directly adapted to the connection requirements of different pipe diameters, a complex pipe branch structure must be designed to solve the adaptation problem. Such a design not only increases the difficulty of installation, but also makes the space occupied larger. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a variable diameter sealing three-way valve, which aims to improve the problem of the fixed orifice diameter of existing three-way valves.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a variable diameter sealing three-way valve, comprising a fixed block, a fixed pipe one fixedly connected to one side of the fixed block, a fixed pipe two fixedly connected to one side of the fixed block, a three-way flexible hose fixedly connected to one end of the fixed pipe one, a three-way flexible hose fixedly connected to one end of the fixed pipe two, a movable pipe fixedly connected to one end of the three-way flexible hose, and a connecting pipe fixedly connected to one end of the movable pipe, the fixed pipe one, and the fixed pipe two, respectively. An air bladder one is fixedly connected inside the connecting pipe, and an air bladder one is fixedly connected inside the connecting pipe. The device includes an airbag II. A ring-shaped array of pressurizing columns is fixedly connected inside the connecting tube. The outer walls of the pressurizing columns are fixedly connected to the outer walls of both airbag I and airbag II. A sliding column is slidably connected inside the pressurizing column. A piston plate is fixedly connected to one end of the sliding column. The outer wall of the piston plate is slidably connected inside the pressurizing column. A limit rod is fixedly connected to one side of the outer wall of the sliding column. The outer wall of the limit rod is slidably connected inside the connecting tube. A driving block is threaded onto the outer wall of the connecting tube. A limit groove is formed on the inner wall of the driving block. The outer wall of the limit rod is slidably connected inside the limit groove.

[0006] Furthermore, the outer wall of the movable tube is slidably connected inside the fixed block, and a rotating disk is fixedly connected to one side of the outer wall of the movable tube.

[0007] Furthermore, a rotating shaft is fixedly connected to the outer wall of the rotating disk II, and the outer wall of the rotating shaft I is rotatably connected inside the fixed block.

[0008] Furthermore, a ratchet is fixedly connected to the outer wall of the rotating shaft, and a pawl is rotatably connected inside the fixing block.

[0009] Furthermore, the pawl engages with the outer wall of the ratchet, and a straight spring is provided on one side of the outer wall of the pawl.

[0010] Furthermore, one end of the straight spring is fixedly connected to the inside of the pawl, the other end of the straight spring is fixedly connected to the inside of the fixed block, and one end of the rotating shaft is fixedly connected to a rotating handle.

[0011] Furthermore, a rotating disk is fixedly connected to the other side of the outer wall of the movable tube, and a rotating shaft is fixedly connected to one side of the outer wall of the rotating disk, and the outer wall of the rotating shaft is rotatably connected inside the fixed block.

[0012] Furthermore, a rotating spring is provided inside the fixing block, and a fixing column is fixedly connected inside the fixing block. One end of the rotating spring is fixedly connected inside the rotating shaft, and the other end of the rotating spring is fixedly connected to the outer wall of the fixing column.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, when connecting to a pipeline, rotating the drive block can push the limit rod, thereby controlling the sliding column to push the piston plate to slide inside the pressurizing column. Then, the gas inside the pressurizing column will be injected into the airbag one and airbag two, causing the airbag one and airbag two to expand and fix the pipeline, thereby realizing the fixation of pipelines of different sizes, solving the problem of the fixed diameter of the three-way valve, and improving the applicability of the three-way valve.

[0015] 2. In this utility model, the rotating handle can drive the rotating shaft to rotate, thereby driving the movable tube to adjust its angle through the rotating disc. With the cooperation of the ratchet and the rotating spring, the movable tube is kept fixed after adjustment, which solves the problem that the connection angle of the three-way valve cannot be changed and improves the convenience of the three-way valve installation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of a variable diameter sealing three-way valve proposed in this utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the connecting pipe of a variable diameter sealing three-way valve proposed in this utility model;

[0018] Figure 3 This is a cross-sectional schematic diagram of the fixing block of a variable diameter sealing three-way valve proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the rotating shaft structure of a variable diameter sealing three-way valve proposed in this utility model;

[0020] Figure 5 This is a schematic diagram of the rotating shaft structure of a variable diameter sealing three-way valve proposed in this utility model.

[0021] Legend:

[0022] 1. Fixed block; 2. Rotary handle; 3. Fixed tube one; 4. Movable tube; 5. Connecting tube; 6. Drive block; 7. Fixed tube two; 8. Airbag one; 9. Airbag two; 10. Piston plate; 11. Sliding column; 12. Limiting rod; 13. Limiting groove; 14. Pressurizing column; 15. T-shaped hose; 16. Rotating disk one; 17. Rotating disk two; 18. Rotating shaft one; 19. Ratchet; 20. Pawl; 21. Straight spring; 22. Fixed column; 23. Rotating shaft two; 24. Rotary spring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figure 1 and Figure 2 This utility model provides an embodiment of a variable diameter sealing three-way valve, comprising a fixed block 1, a fixed pipe 3 fixedly connected to one side inside the fixed block 1, a fixed pipe 7 fixedly connected to one side inside the fixed block 1, a three-way flexible hose 15 fixedly connected to one end of the fixed pipe 3, a three-way flexible hose 15 fixedly connected to one end of the fixed pipe 7, a movable pipe 4 fixedly connected to one end of the three-way flexible hose 15, a connecting pipe 5 fixedly connected to one end of the movable pipe 4, the fixed pipe 3, and the fixed pipe 7, an airbag 8 fixedly connected inside the connecting pipe 5, and an airbag 9 fixedly connected inside the connecting pipe 5. The pipe 5 is fixedly connected to a ring array of pressurizing columns 14. The outer wall of the pressurizing columns 14 is fixedly connected to the outer walls of airbag 1 8 and airbag 2 9. The pressurizing columns 14 are slidably connected to a sliding column 11. One end of the sliding column 11 is fixedly connected to a piston plate 10. The outer wall of the piston plate 10 is slidably connected to the inside of the pressurizing column 14. A limit rod 12 is fixedly connected to one side of the outer wall of the sliding column 11. The outer wall of the limit rod 12 is slidably connected to the inside of the connecting pipe 5. The outer wall of the connecting pipe 5 is threadedly connected to a driving block 6. A limit groove 13 is opened on the inner wall of the driving block 6. The outer wall of the limit rod 12 is slidably connected to the inside of the limit groove 13.

[0025] Specifically, when connecting pipes of different diameters, the target pipe can be directly inserted into the connecting pipe 5. The operator can then rotate the drive block 6, which is threadedly connected to the connecting pipe 5. As the drive block 6 rotates, it moves along the axial direction of the connecting pipe 5. Once the drive block 6 reaches the appropriate position, it remains firmly in place due to the self-locking property of the thread, preventing loosening due to external forces. The drive block 6 has an annular limiting groove 13 machined inside, and the limiting rod 12 slides in contact with the inner wall of the limiting groove 13. When the drive block 6 rotates and moves, the inner wall of the limiting groove 13 pushes the limiting rod 12. The other end of the limiting rod 12 is connected to the sliding column 11. When the limiting rod 12 moves under the action of the limiting groove 13, it drives the sliding column 11 to slide into the pressure column 14. A piston plate 10 is fixedly installed at the end of the sliding column 11. The piston plate 10 is made of nitrile rubber, which has good sealing and wear resistance. As the sliding column 11 slides, the piston plate 10 moves along the connecting pipe 5. The piston plate 10 also moves into the pressure column 14, forming a sealed air chamber inside the pressure column 14. When the piston plate 10 moves into the pressure column 14, it compresses the gas in the air chamber. The pressure column 14 is connected to airbag 8 and airbag 9 respectively. As the piston plate 10 continues to move, the gas in the air chamber is continuously injected into airbag 8 and airbag 9, causing the pressure inside airbag 8 and airbag 9 to gradually increase. Airbag 8 and airbag 9 are made of highly elastic rubber material with a fine anti-slip coating on the surface. When the pressure inside airbag 8 and airbag 9 increases, they will expand evenly and fit tightly against the outer wall of the pipe inserted into the connecting pipe 5. For pipes of different diameters, airbag 8 and airbag 9 can adapt to the shape of the pipe and clamp the pipe firmly with uniform pressure. Even under complex working conditions such as pipe vibration and fluid pressure fluctuation, the friction and clamping force generated by airbag 8 and airbag 9 can ensure the stability of the pipe connection and effectively prevent the pipe from falling off or leaking.

[0026] Reference Figures 3-5The outer wall of the movable tube 4 is slidably connected to the inside of the fixed block 1. A rotating disk 2 17 is fixedly connected to one side of the outer wall of the movable tube 4. A rotating shaft 18 is fixedly connected to the outer wall of the rotating disk 2 17. The outer wall of the rotating shaft 18 is rotatably connected to the inside of the fixed block 1. A ratchet 19 is fixedly connected to the outer wall of the rotating shaft 18. A pawl 20 is rotatably connected inside the fixed block 1. The pawl 20 meshes with the outer wall of the ratchet 19. A straight spring 21 is provided on one side of the outer wall of the pawl 20. One end of the straight spring 21 is fixedly connected to the inside of the pawl 20. The other end of the straight spring 21... The rotating shaft 18 is fixedly connected to the inside of the fixed block 1. One end of the rotating shaft 18 is fixedly connected to the rotating handle 2. The other side of the outer wall of the movable tube 4 is fixedly connected to the rotating disk 16. One side of the outer wall of the rotating disk 16 is fixedly connected to the rotating shaft 23. The outer wall of the rotating shaft 23 is rotatably connected to the inside of the fixed block 1. The fixed block 1 is equipped with a rotating spring 24. The fixed block 1 is fixedly connected to the inside of the fixed block 1. One end of the rotating spring 24 is fixedly connected to the inside of the rotating shaft 23. The other end of the rotating spring 24 is fixedly connected to the outer wall of the fixed column 22.

[0027] Specifically, in actual use of this three-way valve, the operator can grip and apply force to the rotating handle 2. When the rotating handle 2 rotates, it drives the rotating shaft 18 to rotate synchronously. The other end of the rotating shaft 18 is fixed to the rotating disc 17. Thus, the rotational motion of the rotating shaft 18 is transmitted to the rotating disc 17, causing the rotating disc 17 to rotate accordingly. The edge of the rotating disc 17 is connected to the movable tube 4. When the rotating disc 17 rotates, it drives the movable tube 4 to adjust its angle, thereby changing the direction of the fluid passage in the three-way valve. Meanwhile, a ratchet 19 is fixedly installed on the rotating shaft 18, rotating synchronously with the rotation of the rotating shaft 18. A pawl 20 is hinged to the inside of the fixed block 1 via a pin, with one end connected to a straight spring 21. Under the elastic force of the straight spring 21, the tooth tip of the pawl 20 is always pressed against the tooth groove of the ratchet 19, forming a one-way stop structure, effectively preventing the ratchet 19 from rotating in the opposite direction, thus ensuring that the movable tube 4 remains stable in the adjusted angular position. The other end of the pawl 20 extends out of the side wall of the fixed block 1, allowing for operation... Operators can press the press head with their fingers to overcome the elastic force of the straight spring 21, causing the pawl 20 to rotate around the hinge pin, thereby freeing it from the restriction of the ratchet 19 and facilitating the readjustment of the movable tube 4. During the rotation of the movable tube 4, the rotating disk 16 fixedly connected to its other side will also rotate synchronously, and the rotating disk 16 will transmit the rotation to the rotating shaft 23. The end of the rotating shaft 23 is equipped with a rotating spring 24. When the rotating shaft 23 rotates, it will compress the rotating spring 24, causing the rotating spring 24 to store elastic potential energy. When the movable tube 4 is adjusted to the required angle, under the action of the straight spring 21, the pawl 20 will engage with the tooth groove of the ratchet 19 to achieve mechanical locking. At the same time, the elastic potential energy stored in the rotating spring 24 provides a reverse torque, which works in conjunction with the locking structure of the ratchet 19 and the pawl 20 to form a double locking mechanism, further enhancing the stability and reliability of the movable tube 4 after angle adjustment, effectively preventing the angle of the movable tube 4 from shifting due to factors such as fluid pressure fluctuations, and ensuring that the three-way valve can operate stably under complex working conditions.

[0028] Working principle: When using this three-way valve, the rotary handle 2 can be rotated, causing the rotary handle 2 to drive the rotary disc 17 to rotate via the rotary shaft 18. The rotary disc 17 can then drive the movable tube 4 to adjust its angle. When the rotary shaft 18 rotates, the ratchet 19 on the rotary shaft 18 will rotate accordingly. Under the force of the straight spring 21, the pawl 20 will press against the ratchet 19, preventing the ratchet 19 from rotating in the opposite direction. One side of the pawl 20 extends out of the fixed block 1, and can be rotated by pressing, thus releasing the restriction on the pawl 20. When the movable tube 4 rotates, the rotary disc 16 on the other side of the movable tube 4 will rotate accordingly, thereby driving the rotary shaft 23 to rotate. The rotation of the rotary shaft 23 will compress the rotary spring 24, thus the rotary spring 24 and the ratchet 1... The 9-coordinate mechanism allows the movable tube 4 to be locked after angle adjustment. When connecting pipes of different diameters, it can be inserted into the connecting tube 5. When the drive block 6 is rotated, the rotation of the drive block 6 will move and self-lock under the action of the thread. A limit groove 13 is provided inside the drive block 6. The inner wall of the limit groove 13 pushes the limit rod 12, so that the limit rod 12 can adapt to the rotation of the drive block 6 while being driven. When the limit rod 12 moves, it will drive the sliding column 11 to slide into the pressure column 14, and drive the piston plate 10 to slide into the pressure column 14. When the piston plate 10 moves, it will inject the gas inside the pressure column 14 into the airbag 8 and the airbag 9, and increase the pressure of the airbag 8 and the airbag 9, so that the airbag 8 and the airbag 9 will clamp and fix the pipe inserted into the connecting tube 5.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A variable diameter sealed three-way valve, comprising a fixed block (1), characterized in that: A fixing tube 1 (3) is fixedly connected to one side of the inside of the fixing block (1), and a fixing tube 2 (7) is fixedly connected to one side of the inside of the fixing block (1). A three-way flexible tube (15) is fixedly connected to one end of the fixing tube 1 (3), and one end of the three-way flexible tube (15) is fixedly connected to one end of the fixing tube 2 (7). A movable tube (4) is fixedly connected to one end of the movable tube (4), the fixing tube 1 (3), and the fixing tube 2 (7). A connecting tube (5) is fixedly connected to one end of the connecting tube (5). An airbag 1 (8) is fixedly connected to the inside of the connecting tube (5). An airbag 2 (9) is fixedly connected to the inside of the connecting tube (5). A ring array of pressure columns is fixedly connected to the inside of the connecting tube (5). 14) The outer wall of the pressurizing column (14) is fixedly connected to the outer walls of the first airbag (8) and the second airbag (9). A sliding column (11) is slidably connected inside the pressurizing column (14). A piston plate (10) is fixedly connected to one end of the sliding column (11). The outer wall of the piston plate (10) is slidably connected inside the pressurizing column (14). A limiting rod (12) is fixedly connected to one side of the outer wall of the sliding column (11). The outer wall of the limiting rod (12) is slidably connected inside the connecting pipe (5). A driving block (6) is threadedly connected to the outer wall of the connecting pipe (5). A limiting groove (13) is opened on the inner wall of the driving block (6). The outer wall of the limiting rod (12) is slidably connected inside the limiting groove (13).

2. The variable diameter sealing three-way valve according to claim 1, characterized in that: The outer wall of the movable tube (4) is slidably connected to the inside of the fixed block (1), and a rotating disk (17) is fixedly connected to one side of the outer wall of the movable tube (4).

3. A variable diameter sealing three-way valve according to claim 2, characterized in that: The outer wall of the rotating disk 2 (17) is fixedly connected to the rotating shaft 1 (18), and the outer wall of the rotating shaft 1 (18) is rotatably connected inside the fixed block (1).

4. A variable diameter sealing three-way valve according to claim 3, characterized in that: A ratchet (19) is fixedly connected to the outer wall of the rotating shaft (18), and a pawl (20) is rotatably connected inside the fixing block (1).

5. A variable diameter sealing three-way valve according to claim 4, characterized in that: The pawl (20) engages with the outer wall of the ratchet (19), and a straight spring (21) is provided on one side of the outer wall of the pawl (20).

6. A variable diameter sealed three-way valve according to claim 5, characterized in that: One end of the straight spring (21) is fixedly connected to the inside of the pawl (20), and the other end of the straight spring (21) is fixedly connected to the inside of the fixed block (1). One end of the rotating shaft (18) is fixedly connected to a rotating handle (2).

7. A variable diameter sealing three-way valve according to claim 2, characterized in that: A rotating disk (16) is fixedly connected to the other side of the outer wall of the movable tube (4), and a rotating shaft (23) is fixedly connected to one side of the outer wall of the rotating disk (16). The outer wall of the rotating shaft (23) is rotatably connected inside the fixed block (1).

8. A variable diameter sealing three-way valve according to claim 7, characterized in that: The fixing block (1) is provided with a rotating spring (24) inside, and a fixing column (22) is fixedly connected inside the fixing block (1). One end of the rotating spring (24) is fixedly connected inside the rotating shaft (23), and the other end of the rotating spring (24) is fixedly connected to the outer wall of the fixing column (22).

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