Proportional flow stop valve convenient to maintain

Abstract

The utility model relates to the technical field of flow stop valves, in particular to a proportional flow stop valve convenient to maintain, which comprises a butt joint pipe I, a butt joint pipe II, a valve body and a valve cover, the butt joint pipe I is arranged at the lower end part of the valve body, the butt joint pipe II is communicated with the side end part of the valve body, and the valve cover is arranged on the butt joint pipe II. A first butt-joint disc is fixedly installed at the upper end of the valve body, a second butt-joint disc is fixedly installed at the lower end of the valve deck, a plurality of wedge-shaped clamping grooves are formed in the first butt-joint disc, a plurality of L-shaped clamping blocks are fixedly installed at the lower end of the second butt-joint disc, two movable buckles are symmetrically installed at the side end of the second butt-joint disc, and rubber tamping pads are arranged on the two movable buckles. According to the utility model, the mounting mode of the butt joint disc I and the butt joint disc II is designed to be clamping connection, so that when the butt joint disc I and the butt joint disc II are maintained, the quick release of the proportional flow stop valve can be realized, the maintenance efficiency is effectively improved, and the practicability of the device is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of flow cut-off valve technology, and in particular to a proportional flow cut-off valve that is easy to maintain. Background Technology

[0002] An easy-to-maintain proportional flow shut-off valve is mainly used to improve the maintenance convenience of proportional flow shut-off valves, help relevant personnel to perform equipment maintenance work more efficiently, and ensure the stable operation of proportional flow shut-off valves. Through its unique design, it can achieve quick disassembly and installation, providing great convenience for equipment maintenance and repair.

[0003] In practical applications, easy-to-maintain proportional flow shut-off valves typically require the following technologies:

[0004] A reliable sealing structure ensures that the shut-off valve does not leak when closed; the sealing structure uses high-quality sealing materials, which have good sealing performance and can effectively prevent fluid leakage.

[0005] The robust valve body material can withstand fluid pressure and external forces; the valve body is made of high-strength material, with good pressure resistance and corrosion resistance, and can adapt to various harsh working environments.

[0006] The convenient operating mechanism allows users to easily open and close the valve. Its rational design and simple operation meet diverse user needs.

[0007] Currently, various proportional flow shut-off valves are used to meet the needs of different operating conditions. Some shut-off valves have complex structures and are difficult to maintain. Others have poor sealing performance and are prone to leakage. Some prioritize flow control accuracy while neglecting ease of maintenance.

[0008] However, the above-mentioned method has a prominent hardware structural problem: the maintenance efficiency of the shut-off valve in actual use is poor, especially when emergency or frequent maintenance is required, as the operation is cumbersome and time-consuming. This application addresses this problem by proposing a solution: a proportional flow shut-off valve with a snap-fit ​​connection between connecting disc one and connecting disc two. This design allows for quick disassembly and reassembly of the proportional flow shut-off valve during maintenance, greatly improving maintenance efficiency and effectively enhancing the practicality of the device. Utility Model Content

[0009] (a) Technical problems to be solved

[0010] To address the shortcomings of existing technologies, this utility model provides a proportional flow shut-off valve that is easy to maintain, solving the technical problem of poor maintenance efficiency of shut-off valves in actual use, especially the cumbersome and time-consuming operation when emergency or frequent maintenance is required.

[0011] (II) Technical Solution

[0012] To achieve the above objectives, this utility model provides the following technical solution:

[0013] A proportional flow shut-off valve that is easy to maintain includes a connecting pipe 1, a connecting pipe 2, a valve body, and a valve cover. The connecting pipe 1 is located at the lower end of the valve body, and the connecting pipe 2 is connected to the side end of the valve body. A connecting plate 1 is fixedly installed at the upper end of the valve body, and a connecting plate 2 is fixedly installed at the lower end of the valve cover. The connecting plate 1 has several wedge-shaped grooves, and the lower end of the connecting plate 2 has several L-shaped blocks. Two movable buckles are symmetrically installed at the side end of the connecting plate 2, and each movable buckle is provided with a rubber filling pad. Sealing grooves are provided at the upper end of the connecting plate 1 and the lower end of the connecting plate 2, and a sealing ring is provided between the two sealing grooves. The position of each L-shaped block corresponds to the position of the wedge-shaped groove, and each L-shaped block is engaged with the corresponding L-shaped block. Both movable buckles are engaged with the connecting plate 1.

[0014] Preferably, flanges are fixedly installed on both the first and second connecting pipes, a limit pipe is provided at the bottom of the inner wall of the valve body, the limit pipe is connected to the first connecting pipe, and a limit pipe is provided at the top of the inner wall of the valve body, the limit pipe is connected to the valve cover.

[0015] Preferably, the upper and lower positions of the first limiting pipe and the second limiting pipe are corresponding, and the inner diameters of the first limiting pipe and the second limiting pipe are the same. A plunger is provided inside the second limiting pipe, and an adjusting valve rod is threadedly installed on the upper end of the valve cover. The adjusting valve rod and the upper end of the plunger are rotated together.

[0016] (III) Beneficial Effects

[0017] 1. When the second docking plate moves upward, it drives the regulating valve stem. The regulating valve stem, under force, drives the plunger. The plunger, under force, disengages from the valve cover. Then maintenance is performed. By designing the installation method of the first and second docking plates as snap-fit, the proportional flow shut-off valve can be quickly disassembled during maintenance, thereby effectively improving the efficiency of maintenance and the practicality of the device.

[0018] 2. The upward movement of the regulating valve stem drives the plunger to move upward. The upward movement of the plunger disengages from the limiting pipe one, connecting the connecting pipe one to the valve body. The fluid medium then enters the valve body from the connecting pipe one and then flows out from the valve body through the connecting pipe two. By designing the proportional flow shut-off valve as a combination type, the flow shut-off valve has a simple structure and operation method, making it easy to install, operate and maintain, thereby improving the practicality of the device. Attached Figure Description

[0019] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0020] Figure 1 This is a structural diagram of the valve body of this utility model;

[0021] Figure 2 This is a structural diagram of the plunger in the closed state of this utility model;

[0022] Figure 3 This is a structural diagram of the plunger of this utility model in the open state;

[0023] Figure 4 This is a structural diagram of the wedge-shaped groove of this utility model.

[0024] Legend: 1. Connecting pipe one; 11. Connecting pipe two; 12. Valve body; 13. Connecting disc one; 14. Connecting disc two; 15. Valve cover; 16. Limiting pipe one; 17. Limiting pipe two; 18. Plunger; 19. Adjusting valve stem; 2. Wedge groove; 21. L-shaped locking block; 22. Movable buckle; 23. Rubber filling pad; 24. Sealing groove; 25. Sealing ring. Detailed Implementation

[0025] This application provides a proportional flow shut-off valve that is easy to maintain, effectively solving the technical problem of poor maintenance efficiency of shut-off valves in actual use, especially the cumbersome operation and wasted time when emergency maintenance or frequent maintenance is required.

[0026] Example

[0027] according to Figure 1 , Figure 2 , Figure 3 ,and Figure 4 As shown, the technical solution in this application embodiment effectively solves the problem of poor maintenance efficiency of gate valves in actual use, especially the cumbersome and time-consuming operation when emergency maintenance or frequent maintenance is required. The overall idea is as follows:

[0028] To address the problems existing in the prior art, this utility model provides a proportional flow shut-off valve that is easy to maintain, including a connecting pipe 1, a connecting pipe 2 11, a valve body 12, and a valve cover 15. The connecting pipe 1 is located at the lower end of the valve body 12, and the connecting pipe 2 11 is connected to the side end of the valve body 12. A connecting plate 1 13 is fixedly installed at the upper end of the valve body 12, and a connecting plate 2 14 is fixedly installed at the lower end of the valve cover 15. The connecting plate 1 13 has several wedge-shaped grooves 2, and the lower end of the connecting plate 2 14 has several L-shaped locking blocks 21 fixedly installed. Two movable buckles 22 are symmetrically installed at the side end of the connecting plate 2 14, and each movable buckle 22 is provided with a rubber filling pad 23. A sealing groove 24 is provided at the upper end of the connecting plate 1 13 and the lower end of the connecting plate 2 14, and a sealing ring 25 is provided between the two sealing grooves 24. The positions of the L-shaped locking blocks 21 correspond to the positions of the wedge-shaped locking grooves 2, and each L-shaped locking block 21 is engaged with its corresponding counterpart. Both movable locking buckles 22 are engaged with the first docking plate 13. Pulling the movable locking buckle 22 causes the rubber filling pad 23 to disengage from the first docking plate 13. Then rotating the movable locking buckle 22 causes the second docking plate 14 to rotate, which in turn causes the L-shaped locking blocks 21 to rotate and disengage from the wedge-shaped locking grooves 2. Pulling the movable locking buckle 22 upward causes the second docking plate 14 to move upward, which in turn moves the regulating valve stem 19. The regulating valve stem 19 then moves the plunger 18, which disengages from the valve cover 15. Maintenance is then performed.

[0029] Flanges are fixedly installed on both connecting pipe 1 and connecting pipe 2. A limit pipe 16 is installed at the bottom of the inner wall of valve body 12, connecting pipe 16 to connecting pipe 1. A limit pipe 27 is installed at the top of the inner wall of valve body 12, connecting valve cover 15. The upper and lower positions of limit pipe 16 and limit pipe 217 correspond, and their inner diameters are the same. A plunger 18 is installed inside limit pipe 217. An adjusting valve stem 19 is threaded onto the upper end of valve cover 15. The adjusting valve stem 19 and the upper end of plunger 18... The ends are rotated and installed, and the mating flanges of the connecting pipe 1 and connecting pipe 2 are connected to the pipeline respectively. Then, the fluid medium enters from the connecting pipe 1. Rotate the regulating valve stem 19. The regulating valve stem 19 is subjected to force and rotates in the valve cover 15. The regulating valve stem 19 adjusts its own height by rotating in the thread. The regulating valve stem 19 moves upward and drives the plunger 18 to move upward. The plunger 18 moves upward and disengages from the limiting pipe 16, so that the connecting pipe 1 is connected to the valve body 12. Then, the fluid medium enters the valve body 12 from the connecting pipe 1 and then transfers from the valve body 12 to the connecting pipe 2 and is delivered out.

[0030] Working principle:

[0031] The first step, when maintaining the proportional flow shut-off valve for easy maintenance, involves pulling the movable latch 22. The movable latch 22, under pressure, causes the rubber filling pad 23 to disengage from the first docking plate 13. Then, rotating the movable latch 22 causes the second docking plate 14 to rotate. The second docking plate 14, under pressure, causes the L-shaped locking block 21 to rotate, disengaging from the wedge-shaped locking groove 2. Next, pulling the movable latch 22 upwards causes the second docking plate 14 to move upwards. This upward movement of the second docking plate 14 drives the regulating valve stem 19, which in turn drives the plunger 18. The plunger 18 then disengages from the valve cover 15. Maintenance is then performed. By designing the installation of the first docking plate 13 and the second docking plate 14 as a snap-fit ​​connection, quick disassembly of the proportional flow shut-off valve is possible during maintenance, effectively improving maintenance efficiency and the practicality of the device.

[0032] The second step involves using the easily maintained proportional flow shut-off valve. Connect the flanges of connecting pipe 1 and connecting pipe 2 to the pipeline. The fluid medium enters through connecting pipe 1. Rotating the regulating valve stem 19 causes it to rotate threadedly within the valve cover 15. This threaded rotation adjusts the stem's height, causing the plunger 18 to move upwards. The plunger 18 then moves upwards, disengaging from the limiting pipe 16, connecting pipe 1 to the valve body 12. The fluid medium then enters the valve body 12 from connecting pipe 1 and exits through connecting pipe 2. By designing the proportional flow shut-off valve as a modular unit, it achieves a simple structure and operation, facilitating installation, operation, and maintenance, thus improving the device's practicality.

[0033] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A proportional flow shut-off valve that is easy to maintain, comprising a first connecting pipe (1), a second connecting pipe (11), a valve body (12), and a valve cover (15), wherein the first connecting pipe (1) is disposed at the lower end of the valve body (12), and the second connecting pipe (11) is connected to the side end of the valve body (12), characterized in that, A first docking plate (13) is fixedly installed at the upper end of the valve body (12), and a second docking plate (14) is fixedly installed at the lower end of the valve cover (15). The first docking plate (13) has several wedge-shaped slots (2), and the second docking plate (14) has several L-shaped blocks (21) fixedly installed at the lower end. Two movable buckles (22) are symmetrically installed on the side end of the second docking plate (14). Both movable buckles (22) are provided with rubber filling pads (23). The upper end of the first docking plate (13) and the lower end of the second docking plate (14) are provided with sealing grooves (24), and a sealing ring (25) is provided between the two sealing grooves (24). In this case, the position of each L-shaped card block (21) corresponds to the position of the wedge-shaped card groove (2), and each L-shaped card block (21) is snapped into the corresponding L-shaped card block (21). Both movable buckles (22) are snapped into the docking plate (13).

2. The easily maintainable proportional flow shut-off valve according to claim 1, characterized in that, Flanges are fixedly installed on both the first connecting pipe (1) and the second connecting pipe (11).

3. The easily maintainable proportional flow shut-off valve according to claim 2, characterized in that, The valve body (12) is provided with a limiting pipe (16) at the bottom of its inner wall, and the limiting pipe (16) is connected to the connecting pipe (1).

4. The easy-to-maintain proportional flow shut-off valve according to claim 3, characterized in that, The valve body (12) has a limit pipe (17) at the top of its inner wall, and the limit pipe (17) is connected to the valve cover (15).

5. The easily maintainable proportional flow shut-off valve according to claim 4, characterized in that, The upper and lower positions of the first limiting pipe (16) and the second limiting pipe (17) are corresponding, and the inner diameters of the first limiting pipe (16) and the second limiting pipe (17) are the same.

6. A proportional flow shut-off valve for easy maintenance according to claim 5, characterized in that, A plunger (18) is provided inside the limiting pipe (17), and an adjusting valve rod (19) is threadedly installed on the upper end of the valve cover (15). The adjusting valve rod (19) is rotatably installed with the upper end of the plunger (18).

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