Highly sealed pipe check valve

Abstract

The utility model relates to related technical field of valve especially, relates to high sealing property tubular check valve, including tubular check valve main part, the outside surface of tubular check valve main part is provided with fixed establishment, the inside surface of tubular check valve main part is provided with filter assembly. That high sealing property tubular check valve, through the setting of fixed establishment, can simply and quickly install and detach the connecting pipe, is convenient for the maintenance and replacement of device in later period, has lowered the maintenance cost, simultaneously, through the setting of filter assembly, can effectively intercept the impurity in fluid, avoids the impurity and enters the valve body inside to cause the damage to valve body, improved the service life of device, and improved the use effect of device.

Description

Technical Field

[0001] This utility model relates to the field of valve-related technology, and in particular to a high-sealing tubular check valve. Background Technology

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and regulate and control the parameters of the conveyed medium. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc. Among them, check valves, also known as one-way valves or non-return valves, are valves that only allow fluid to flow in one direction. In fluid pipeline systems, the function of one-way valves is to prevent fluid backflow and protect other equipment in the system from damage caused by fluid backflow. In order to improve efficiency, high-sealing pipe-type one-way valves are particularly needed.

[0003] When guiding fluid through a check valve, threaded connections often suffer from insufficient sealing, leading to fluid leakage and affecting the valve's performance. This wastes resources and can even damage the fluid piping system, increasing maintenance costs. Therefore, welding is commonly used to improve sealing. However, while this solution improves sealing to some extent, it is complex to operate and difficult to disassemble and maintain. Utility Model Content

[0004] The purpose of this invention is to provide a high-sealing tubular check valve to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-sealing tubular check valve, comprising a tubular check valve body, wherein a fixing mechanism is provided on the outer surface of the tubular check valve body, and a filter assembly is provided on the inner surface of the tubular check valve body;

[0006] The fixing mechanism includes a connecting pipe, a fixing block, a limiting hole, a fixing bolt, a gasket, a clamp, a rotating shaft, and a nut. One end of the tubular one-way valve body is connected to the connecting pipe. A fixing block is provided on the outer surface of the connecting pipe. A limiting hole is opened on the outer surface of the fixing block. A fixing bolt is installed on the inner surface of the limiting hole. A gasket is provided on the outer surface of the fixing bolt. A clamp is fixedly connected to one side surface of the fixing bolt. A rotating shaft is rotatably connected inside the clamp. A nut is connected to one end of the fixing bolt.

[0007] Preferably, the filter assembly includes a mounting groove, a sealing ring, a fixing groove, and a filter screen. The mounting groove is formed on the outer surface of the connecting pipe, the sealing ring is provided on the inner surface of the mounting groove, the fixing groove is formed on the inner surface of the connecting pipe, and the filter screen is provided on the inner surface of the fixing groove.

[0008] Preferably, the tubular one-way valve body includes a valve body, a spring, and a valve core. The inner surface of the valve body is provided with a spring, and one end of the spring is connected to the valve core.

[0009] Preferably, the latch and the rotating shaft form a rotating structure, and the outer surface dimension of one end of the latch is in close contact with the outer surface dimension of the gasket.

[0010] Preferably, one end of the fixing bolt is fixedly connected to a retaining clip, and the other end of the fixing bolt is threadedly connected to a nut.

[0011] Preferably, the inner surface of the mounting groove matches the outer surface of the sealing ring, and the inner surface of the fixing groove matches the outer surface of the filter screen.

[0012] Preferably, the inner surface of the connecting pipe has two fixing grooves, and the inner surface of the two fixing grooves is fitted with a filter screen.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the high-sealing tubular check valve, through the setting of the fixing mechanism, can easily and quickly install and disassemble the connecting pipe, which facilitates the maintenance and replacement of the device in the later stage and reduces maintenance costs. At the same time, through the setting of the filter component, it can effectively intercept impurities in the fluid, prevent impurities from entering the valve body and causing damage to the valve body, improve the service life of the device, and improve the performance of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall appearance and structure of the present utility model;

[0015] Figure 2 This is a schematic diagram of the fixing mechanism of this utility model;

[0016] Figure 3 This is a schematic diagram of the filter assembly structure of this utility model;

[0017] Figure 4 This utility model Figure 3 A magnified structural diagram at point A.

[0018] In the diagram: 1. Pipe-type check valve body; 11. Valve body; 12. Spring; 13. Valve core; 2. Fixing mechanism; 21. Connecting pipe; 22. Fixing block; 23. Limiting hole; 24. Fixing bolt; 25. Gasket; 26. Clamp; 27. Rotating shaft; 28. Nut; 3. Filter assembly; 31. Mounting groove; 32. Sealing ring; 33. Fixing groove; 34. Filter screen. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4 This utility model provides a technical solution: a high-sealing tubular check valve, including a tubular check valve body 1, a fixing mechanism 2 provided on the outer surface of the tubular check valve body 1, and a filter assembly 3 provided on the inner surface of the tubular check valve body 1.

[0021] The fixing mechanism 2 includes a connecting pipe 21, a fixing block 22, a limiting hole 23, a fixing bolt 24, a gasket 25, a clamp 26, a rotating shaft 27, and a nut 28. One end of the tubular check valve body 1 is connected to the connecting pipe 21. The outer surface of the connecting pipe 21 is provided with the fixing block 22. The outer surface of the fixing block 22 has a limiting hole 23. The inner surface of the limiting hole 23 is fitted with the fixing bolt 24. The outer surface of the fixing bolt 24 is provided with a gasket 25. One side surface of the fixing bolt 24 is fixedly connected to the clamp 26. The rotating shaft 27 is rotatably connected inside the clamp 26. One end of the fixing bolt 24 is connected to the nut 28. The connecting pipe 21... The arrangement of the fixing block 22, limiting hole 23, fixing bolt 24, gasket 25, clamp 26, rotating shaft 27, and nut 28 allows for the following connection process: First, the connecting pipe 21 is connected to the valve body 11. Then, the fixing bolt 24 is rotated to pass through the limiting hole 23 and threadedly connect with the nut 28, thus fixing the connecting pipe 21 to the tubular one-way valve body 1. When disassembly is required, simply rotate the nut 28 in the opposite direction to separate the fixing bolt 24 from the nut 28, allowing for easy disassembly of the connecting pipe 21. This facilitates later maintenance and replacement. The gasket 25 also prevents the fixing bolt 24 from directly contacting it and causing wear, thus improving the service life of the device.

[0022] Furthermore, the filter assembly 3 includes an installation groove 31, a sealing ring 32, a fixing groove 33, and a filter screen 34. The outer surface of the connecting pipe 21 has an installation groove 31, the inner surface of the installation groove 31 has a sealing ring 32, the inner surface of the connecting pipe 21 has a fixing groove 33, and the inner surface of the fixing groove 33 has a filter screen 34. Through the arrangement of the installation groove 31, sealing ring 32, fixing groove 33, and filter screen 34, during the installation process, the filter screen 34 is first installed in the fixing groove 33, and then the sealing ring 32 is installed in the installation groove 31. When the fluid passes through the connecting pipe 21, the filter screen 34 can effectively intercept impurities in the fluid, preventing impurities from entering the body of the tubular check valve 1 and causing damage to the valve body 11. At the same time, the sealing ring 32 can also improve the sealing between the connecting pipe 21 and the body of the tubular check valve 1, preventing fluid leakage and further improving the performance of the device.

[0023] Furthermore, the main body 1 of the tubular one-way valve includes a valve body 11, a spring 12, and a valve core 13. The inner surface of the valve body 11 is provided with a spring 12, and one end of the spring 12 is connected to the valve core 13.

[0024] Furthermore, the latch 26 and the rotating shaft 27 form a rotating structure. The outer surface of one end of the latch 26 is in close contact with the outer surface of the gasket 25. By setting the latch 26, the close contact between the latch 26 and the gasket 25 can be used to increase the stability during rotation, prevent the fixing bolt 24 from loosening during rotation, and improve the connection stability of the device.

[0025] Furthermore, a retaining bolt 26 is fixedly connected to one end of the fixing bolt 24, and a nut 28 is threadedly connected to the other end of the fixing bolt 24. By setting the fixing bolt 24, the connecting pipe 21 can be tightly fixed together with the body 1 of the tubular one-way valve, ensuring that no leakage occurs when fluid passes through. At the same time, the threaded connection between the fixing bolt 24 and the nut 28 makes the connection more secure and less prone to loosening, further improving the stability and reliability of the device.

[0026] Furthermore, the inner surface of the mounting groove 31 matches the outer surface of the sealing ring 32, and the inner surface of the fixing groove 33 matches the outer surface of the filter screen 34. Through the setting of the mounting groove 31, the sealing ring 32 can be stably installed on the connecting pipe 21, ensuring that the sealing ring 32 will not be displaced or fall off when fluid passes through, thereby improving the sealing effect between the connecting pipe 21 and the tubular one-way valve body 1. At the same time, the setting of the fixing groove 33 can also stably install the filter screen 34 in the connecting pipe 21, preventing the filter screen 34 from shaking or falling off when fluid passes through, ensuring the normal use effect of the filter screen 34.

[0027] Furthermore, two fixing grooves 33 are formed on the inner surface of the connecting pipe 21, and filter screens 34 are installed on the inner surface of the two fixing grooves 33. By setting the fixing grooves 33, two filter screens 34 are set inside the connecting pipe 21, which can further improve the filtration effect of impurities in the fluid, ensure that the fluid entering the body 1 of the pipe-type check valve is purer, and reduce the damage of impurities to the valve body 11. At the same time, the setting of two filter screens 34 can also increase the filtration area, improve the filtration efficiency, and ensure the smooth passage of fluid.

[0028] Working Principle: In actual operation, the connecting pipe 21 is first connected to the valve body 11. Then, the fixing bolt 24 is rotated so that it passes through the limiting hole 23 and is threadedly connected to the nut 28, thus fixing the connecting pipe 21 to the tubular check valve body 1. When disassembly is required, simply rotate the nut 28 in the opposite direction to separate the fixing bolt 24 from the nut 28, and the connecting pipe 21 can be easily disassembled, facilitating later maintenance and replacement. The gasket 25 also prevents the fixing bolt 24 from directly contacting it and causing wear, thus improving the service life of the device. Furthermore, the filter assembly 3 is improved. During installation, the filter screen 34 is first installed in the fixing groove 33, and then the sealing ring 32 is installed in the mounting groove 31. When the fluid passes through the connecting pipe 21, the filter screen 34 can effectively intercept impurities in the fluid, preventing impurities from entering the tubular check valve body 1 and damaging the valve body 11. At the same time, the sealing ring 32 can also improve the sealing between the connecting pipe 21 and the tubular check valve body 1, preventing fluid leakage and further improving the performance of the device.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-sealing tubular check valve, comprising a tubular check valve body (1), characterized in that: The outer surface of the tubular one-way valve body (1) is provided with a fixing mechanism (2), and the inner surface of the tubular one-way valve body (1) is provided with a filter assembly (3). The fixing mechanism (2) includes a connecting pipe (21), a fixing block (22), a limiting hole (23), a fixing bolt (24), a gasket (25), a retainer (26), a rotating shaft (27), and a nut (28). One end of the tubular one-way valve body (1) is connected to the connecting pipe (21). The outer surface of the connecting pipe (21) is provided with a fixing block (22). The outer surface of the fixing block (22) is provided with a limiting hole (23). The inner surface of the limiting hole (23) is provided with a fixing bolt (24). The outer surface of the fixing bolt (24) is provided with a gasket (25). One side surface of the fixing bolt (24) is fixedly connected with a retainer (26). The inside of the retainer (26) is rotatably connected to a rotating shaft (27). One end of the fixing bolt (24) is connected with a nut (28).

2. The high-sealing tubular check valve according to claim 1, characterized in that: The filter assembly (3) includes a mounting groove (31), a sealing ring (32), a fixing groove (33), and a filter screen (34). The outer surface of the connecting pipe (21) is provided with a mounting groove (31), the inner surface of the mounting groove (31) is provided with a sealing ring (32), the inner surface of the connecting pipe (21) is provided with a fixing groove (33), and the inner surface of the fixing groove (33) is provided with a filter screen (34).

3. The high-sealing tubular check valve according to claim 1, characterized in that: The main body (1) of the tubular one-way valve includes a valve body (11), a spring (12) and a valve core (13). The inner surface of the valve body (11) is provided with a spring (12), and one end of the spring (12) is connected to the valve core (13).

4. The high-sealing tubular check valve according to claim 1, characterized in that: The latch (26) and the rotating shaft (27) form a rotating structure, and the outer surface dimension of one end of the latch (26) is closely fitted with the outer surface dimension of the gasket (25).

5. The high-sealing tubular check valve according to claim 1, characterized in that: One end of the fixing bolt (24) is fixedly connected to a retainer (26), and the other end of the fixing bolt (24) is threadedly connected to a nut (28).

6. The high-sealing tubular check valve according to claim 2, characterized in that: The inner surface of the mounting groove (31) matches the outer surface of the sealing ring (32), and the inner surface of the fixing groove (33) matches the outer surface of the filter screen (34).

7. The high-sealing tubular check valve according to claim 1, characterized in that: The inner surface of the connecting pipe (21) has two fixing grooves (33), and the inner surface of the two fixing grooves (33) is equipped with a filter screen (34).

8. The high-sealing tubular check valve according to claim 7, characterized in that: The filter screen (34) is detachable and can be installed.

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