Modularized check valve easy to replace

Abstract

The modularized check valve easy to replace comprises a valve shell, a supporting pipe is arranged in the valve shell, clamping pin rods are connected to the top end and the bottom end of the supporting pipe in an inserted mode, the clamping pin rods are installed in the supporting pipe in a sliding mode, and springs are fixedly connected to the ends, located in the supporting pipe, of the clamping pin rods. The end, away from the clamping pin rod, of the spring is fixedly connected to the inner wall of the supporting pipe, and the end, away from the supporting pipe, of the clamping pin rod penetrates through the outer side of the valve shell and is provided with a fixing nut in a threaded mode. The disassembly steps of the check valve are simplified, then the check valve body is rapidly disassembled from the pipeline, the maintenance and replacement work of the check valve is rapidly completed, the work efficiency of maintaining the check valve by a user is improved, and convenience is provided for work and use of the user.

Description

Technical Field

[0001] This utility model relates to the field of check valve technology, and in particular to an easily replaceable modular check valve. Background Technology

[0002] A check valve is a type of valve whose opening and closing element is a circular valve disc that relies on its own weight and the pressure of the medium to prevent backflow of the medium. In the traditional way of disassembling and maintaining a check valve, the entire pipeline must first be emptied and closed so that the medium in the pipeline will not flow out when the valve body is disassembled. This will cause the entire pipeline supply system to be in a "paralyzed" state, resulting in huge losses. Moreover, this process of shutting down the pipeline supply also takes a lot of time, which directly slows down the disassembly speed of the valve body. In addition, the time spent disassembling the valve body greatly reduces the disassembly efficiency of the check valve.

[0003] To address the aforementioned problems, this utility model provides improvements. Summary of the Invention

[0004] This invention proposes an easily replaceable modular check valve, which solves the aforementioned problems existing in the use of the prior art.

[0005] The technical solution of this utility model is implemented as follows: an easily replaceable modular check valve includes a valve body, a support tube is provided inside the valve body, and a locking pin is inserted into both the top and bottom ends of the support tube. The locking pin is slidably installed inside the support tube. A spring is fixedly connected to one end of the locking pin inside the support tube, and the end of the spring away from the locking pin is fixedly connected to the inner wall of the support tube. The end of the locking pin away from the support tube extends to the outside of the valve body and is threaded with a fixing nut. Fixing brackets are fixedly installed on both sides of the support tube, and valve discs are movably installed on both sides of the support tube through the fixing brackets. A notch is opened on one side of the support tube, and a limiting block adapted to the notch is fixedly connected to one side of the valve disc.

[0006] The present invention provides a modular check valve for easy replacement as described above. Further, the valve housing cavity has through holes at the top and bottom that are adapted to the locking pin, and the inner diameter of the through holes is smaller than the diameter of the support tube.

[0007] The present invention provides a modular check valve for easy replacement as described above. Further, each side of the valve housing is provided with an auxiliary short pipe, and multiple bolt holes are provided on both sides of the valve housing and on both sides of the auxiliary short pipes. Mounting bolts are inserted into the bolt holes, and the two auxiliary short pipes are fixedly mounted on both sides of the valve housing using mounting bolts.

[0008] The present invention provides a modular check valve for easy replacement as described above. Further, the top of the auxiliary short pipe is integrally formed with a vertical pipe, a sliding plate is slidably installed inside the vertical pipe, and a valve ball located inside the cavity of the auxiliary short pipe is fixedly connected to the bottom of the sliding plate.

[0009] The present invention provides a modular check valve for easy replacement as described above, further comprising: two adapter rings fixedly connected to both sides of the inner cavity of the auxiliary short tube, the two adapter rings being distributed on both sides of the valve ball, and both adapter rings being adapted to the valve ball.

[0010] The present invention provides a modular check valve for easy replacement as described above, further comprising: a screw rotatably mounted on the top of the sliding plate, the top end of the screw penetrating to the top of the vertical pipe, and the screw threadedly mounted on the vertical pipe.

[0011] The present invention provides a modular check valve for easy replacement as described above, further comprising: a rotating handle located on the outside of the vertical pipe is detachably mounted on the top of the screw, and the surface of the rotating handle is provided with anti-slip texture.

[0012] In summary, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model adopts a structural design that can directly achieve pipeline shut-off on site, thereby quickly closing the pipeline, simplifying the disassembly steps of the check valve, and quickly removing the check valve body from the pipeline, thus quickly completing the maintenance and replacement work of the check valve, improving the efficiency of users in maintaining the check valve, and providing convenience for users' work.

[0014] 2. This utility model features a through hole for the sliding of the locking pin. The inner diameter of the through hole is smaller than the diameter of the support tube, thus preventing the support tube from getting stuck in the through hole and causing inconvenience to the user's disassembly work. It also ensures that the support tube can be quickly removed from the inner cavity of the valve body, providing convenience for the user's disassembly work.

[0015] 3. This utility model features an auxiliary short pipe, mounting bolts, and bolt holes. The auxiliary short pipe is an auxiliary pipe for the valve body, used to connect with the piping system to achieve valve body installation. It also works with the valve ball to cut off flow, providing convenience for users to disassemble the valve body. The two auxiliary short pipes are fixedly installed on both sides of the valve body using mounting bolts. During installation, the auxiliary short pipes are connected to the corresponding side of the valve body, and then the mounting bolts are passed through the corresponding bolt holes and tightened to fix them.

[0016] 4. This utility model, through the setting of a vertical tube and a sliding plate, with the sliding plate located inside the vertical tube, allows the sliding plate to slide along the screw within the vertical tube during operation. In this way, the vertical tube can limit the sliding plate and the movement of the valve ball, while also providing sufficient distance for the valve ball to rise, ensuring that the valve ball can work normally and providing convenience for users.

[0017] 5. This utility model, through the setting of a valve ball and an adapter ring, ensures that the valve ball and the adapter ring are matched to each other, and the two adapter rings are arranged on both sides of the valve ball. When the pipeline is closed, the valve ball enters between the two adapter rings, and the two adapter rings also fit against both sides of the valve ball, thereby sealing the inner cavity of the auxiliary short pipe and realizing pipeline closure. Conversely, when the valve ball moves upward and away from the two adapter rings, the pipeline is opened, providing convenience for the user's subsequent disassembly work.

[0018] 6. This utility model features a screw that is threaded onto the vertical pipe. When the user operates the handle, the screw rotates, causing it to move upwards from the vertical pipe. This movement of the screw then moves the sliding plate and valve ball upwards, and vice versa, thus opening and closing the pipe and providing convenience for the user.

[0019] 7. This utility model features a rotating handle with anti-slip texture on its surface, which makes it easier for users to rotate the handle and operate it. This allows users to quickly rotate the screw and provides convenience for their work. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a partial three-dimensional cross-sectional view of the present invention;

[0023] Figure 3 A schematic diagram of the three-dimensional structure assembly of the valve disc;

[0024] Figure 4 A schematic diagram of the three-dimensional structure assembly of the limiting block;

[0025] Figure 5 This is a three-dimensional cross-sectional view of the support tube.

[0026] In the diagram: 1. Valve body, 2. Support tube, 3. Locking pin, 4. Spring, 5. Fixing nut, 6. Valve disc, 7. Notch, 8. Limiting block, 9. Fixing bracket, 10. Auxiliary short tube, 11. Vertical tube, 12. Sliding plate, 13. Valve ball, 14. Adapter ring, 15. Screw, 16. Rotating handle, 17. Mounting bolt, 18. Bolt hole, 19. Through hole. Detailed Implementation

[0027] The following will refer to the appendix in the embodiments of this utility model. Figure 1-5 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Example

[0028] A replaceable modular check valve includes a valve body 1. A support tube 2 is disposed inside the valve body 1. A locking pin 3 is inserted into both the top and bottom ends of the support tube 2. The locking pin 3 is slidably installed inside the support tube 2. A spring 4 is fixedly connected to one end of the locking pin 3 inside the support tube 2. The end of the spring 4 away from the locking pin 3 is fixedly connected to the inner wall of the support tube 2. The end of the locking pin 3 away from the support tube 2 extends to the outside of the valve body 1 and is threaded with a fixing nut 5. Fixing brackets 9 are fixedly installed on both sides of the support tube 2. A valve disc 6 is movably installed on both sides of the support tube 2 via the fixing brackets 9. A notch 7 is opened on one side of the support tube 2. A limiting block 8 adapted to the notch 7 is fixedly connected to one side of the valve disc 6.

[0029] The specific usage process is as follows: First, the user rotates the handle 16. Rotating the handle 16 drives the screw 15 to rotate, and the screw 15 also moves downward inside the vertical pipe 11. Then, the screw 15 drives the sliding plate 12 and the valve ball 13 to move downward until the valve ball 13 enters the auxiliary short pipe 10 and is located between the two adapter rings 14. The valve balls 13 on both sides are operated according to the above steps. In this way, the pipeline system can be temporarily closed and blocked. The sliding plate 12 is located inside the vertical pipe 11. Therefore, during operation, the sliding plate 12 will slide along with the screw 15 inside the vertical pipe 11. In this way, the vertical pipe 11 can limit the movement of the sliding plate 12 and the valve ball 13, and also provide sufficient space for the valve ball 13 to rise. The distance ensures the normal operation of the valve ball 13, providing convenience for users. The valve ball 13 and the adapter ring 14 are matched, and the two adapter rings 14 are arranged on both sides of the valve ball 13. When the pipeline is closed, the valve ball 13 enters between the two adapter rings 14, and the two adapter rings 14 also fit against both sides of the valve ball 13, thereby sealing the inner cavity of the auxiliary short pipe 10 and realizing pipeline closure. Conversely, when the valve ball 13 moves upward away from the two adapter rings 14, the pipeline opens, providing convenience for users' subsequent disassembly work. The screw 15 is installed on the vertical pipe 11 by a threaded connection. Therefore, when the user operates the rotating handle 16, it will drive the screw 15 to rotate. While the screw 15 is rotating, it will also move upward from inside the vertical pipe 11. The movement of the sliding plate 12 and valve ball 13 causes them to move upwards and downwards, thus opening and closing the pipeline and providing convenience for users. The surface of the rotating handle 16 is provided with anti-slip texture to prevent slippage, making it easier for users to operate and allowing them to quickly rotate the screw 15. After shutting down the pipeline supply system, all the mounting bolts 17 on the valve body 1 can be removed, and the valve body 1 can be taken out between the two auxiliary short pipes 10. It should be noted that both auxiliary short pipes 10 are installed on the pipeline supply system. Then, the user loosens the fixing nut 5 and removes it, and then moves the locking pin 3 towards the support pipe 2. Press the inner side until the locking pin 3 is fully inserted into the support tube 2. It should be noted that during manufacturing, the length of the support tube 2 must be adapted to the inner cavity of the valve body 1 and also to the two locking pins 3, ensuring that both locking pins 3 can fully enter the support tube 2. This is existing technology, and users can adjust it during manufacturing to meet their needs. Simultaneously, as the locking pin 3 enters the support tube 2, the spring 4 is compressed, and the locking pin 3 also moves out of the through hole 19. At this point, the user can directly remove the support tube 2 from the valve body 1. Since the valve disc 6 is also hinged to the support tube 2, it can also be disassembled. Afterwards, damaged valve disc 6 or other components can be disassembled and replaced.After replacement, the support tube 2 is placed back into the valve body 1. The support tube 2 is then adjusted so that the locking pin 3 aligns with the through hole 19. Under the action of the spring 4, the locking pin 3 will pop out and insert into the corresponding through hole 19, with the end of the locking pin 3 extending to the outside of the valve body 1. Finally, the fixing nut 5 is installed on the locking pin 3 and tightened. Then, the valve body 1 is installed back between the two auxiliary short pipes 10 using the mounting bolts 17. This completes the replacement and maintenance of the damaged check valve, improving the user's replacement and maintenance efficiency and providing convenience for the user's work. The notch 7 and the limiting block 8 work together to limit the valve disc 6. When the medium flows in the pipeline, it causes the valve disc 6 to flip. Finally, the valve disc 6 drives the limiting block 8 to engage in the notch 7, thus limiting the valve disc 6 and positioning the two valve discs 6 at a 30-degree angle. This also allows the two valve discs 6 to reset when the medium flows back in the pipeline, achieving the purpose of blocking the backflow of the medium.

[0030] Therefore, the structural design allows for direct on-site pipe shut-off, enabling rapid pipe closure and simplifying the check valve disassembly process. This facilitates quick removal of the check valve body from the pipe, enabling rapid maintenance and replacement of the check valve, improving user efficiency and providing convenience for users.

[0031] The valve housing 1 has through holes 19 at the top and bottom of its inner cavity that are adapted to the locking pin 3. The inner diameter of the through holes 19 is smaller than the diameter of the support tube 2.

[0032] Specifically, the through hole 19 is designed to allow the locking pin 3 to slide. At the same time, the inner diameter of the through hole 19 is smaller than the diameter of the support tube 2, thus preventing the support tube 2 from getting stuck in the through hole 19 and causing inconvenience to the user's disassembly work. It also ensures that the support tube 2 can be quickly removed from the inner cavity of the valve body 1, providing convenience for the user's disassembly work.

[0033] Both sides of the valve body 1 are provided with auxiliary short tubes 10. Both sides of the valve body 1 and both sides of the auxiliary short tubes 10 are provided with multiple bolt holes 18. Mounting bolts 17 are inserted into the bolt holes 18. The two auxiliary short tubes 10 are fixedly installed on both sides of the valve body 1 by mounting bolts 17.

[0034] Specifically, the auxiliary short pipe 10, mounting bolt 17, and bolt hole 18 are designed as follows: The auxiliary short pipe 10 is an auxiliary pipe of the valve body 1, used to connect with the piping system to realize the installation of the valve body 1. It also works with the valve ball 13 to cut off the flow, providing convenience for the user's valve body disassembly. The two auxiliary short pipes 10 are fixedly installed on both sides of the valve body 1 using mounting bolt 17. During installation, the auxiliary short pipe 10 is connected to the corresponding side of the valve body 1, and then the mounting bolt 17 is passed through the corresponding bolt hole 18 and tightened to fix it.

[0035] The top of the auxiliary short tube 10 is integrally formed with a vertical tube 11, and a sliding plate 12 is slidably installed inside the vertical tube 11. The bottom of the sliding plate 12 is fixedly connected to a valve ball 13 located in the inner cavity of the auxiliary short tube 10.

[0036] Specifically, regarding the arrangement of the vertical tube 11 and the sliding plate 12, the sliding plate 12 is located inside the vertical tube 11. Therefore, during operation, the sliding plate 12 will slide along the screw 15 within the inner cavity of the vertical tube 11. In this way, the vertical tube 11 can limit the sliding plate 12 and also limit the movement of the valve ball 13. At the same time, it provides sufficient distance for the valve ball 13 to rise, ensuring that the valve ball 13 can work normally and providing convenience for the user's work.

[0037] Both sides of the inner cavity of the auxiliary short tube 10 are fixedly connected with adapter rings 14. The two adapter rings 14 are distributed on both sides of the valve ball 13, and both adapter rings 14 are adapted to the valve ball 13.

[0038] Specifically, the valve ball 13 and the adapter ring 14 are matched with each other, and the two adapter rings 14 are arranged on both sides of the valve ball 13. When the pipeline is closed, the valve ball 13 enters between the two adapter rings 14, and the two adapter rings 14 also fit against both sides of the valve ball 13, thereby sealing the inner cavity of the auxiliary short pipe 10 and realizing pipeline closure. Conversely, the valve ball 13 moves upward away from the two adapter rings 14 and the pipeline is opened, providing convenience for the user's subsequent disassembly work.

[0039] A screw 15 is rotatably mounted on the top of the sliding plate 12. The top end of the screw 15 extends through to the top of the vertical pipe 11, and the screw 15 is threaded onto the vertical pipe 11.

[0040] Specifically, the screw 15 is installed on the vertical pipe 11 by means of a threaded connection. Therefore, when the user operates the rotating handle 16, it will drive the screw 15 to rotate. While the screw 15 is rotating, it will also move upward from inside the vertical pipe 11, thereby driving the sliding plate 12 and the valve ball 13 to move upward, and vice versa, thus realizing the opening and closing of the pipeline and providing convenience for the user's work.

[0041] The top of the screw 15 is detachably mounted with a rotating handle 16 located on the outside of the vertical tube 11, and the surface of the rotating handle 16 is provided with anti-slip texture.

[0042] Specifically, the rotating handle 16 has an anti-slip texture on its surface to prevent slipping, making it easier for users to rotate and operate. This allows users to quickly rotate the screw 15, providing convenience for their work.

[0043] It should be noted that the functions to be achieved by each hardware component in this utility model are supported by a large number of mature technologies and belong to the prior art. The essence of this utility model is to optimize and combine existing hardware and its connection methods for specific application scenarios to meet the adaptation requirements of specific application scenarios and solve the problems raised in the background technology (without involving improvements to the internal software of the hardware).

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 replaceable modular check valve, comprising a valve body (1), characterized in that: The valve housing (1) is provided with a support tube (2) inside. The top and bottom ends of the support tube (2) are both connected to a locking pin (3). The locking pin (3) is slidably installed inside the support tube (2). One end of the locking pin (3) inside the support tube (2) is fixedly connected to a spring (4). The end of the spring (4) away from the locking pin (3) is fixedly connected to the inner wall of the support tube (2). The end of the locking pin (3) away from the support tube (2) passes through to the outside of the valve housing (1) and is threaded with a fixing nut (5). Fixing brackets (9) are fixedly installed on both sides of the support tube (2). Valve discs (6) are movably installed on both sides of the support tube (2) through the fixing brackets (9). A notch (7) is opened on one side of the support tube (2). A limiting block (8) that matches the notch (7) is fixedly connected to one side of the valve disc (6).

2. The easily replaceable modular check valve according to claim 1, characterized in that: The valve housing (1) has through holes (19) at the top and bottom of its inner cavity that are adapted to the locking pin (3). The inner diameter of the through holes (19) is smaller than the diameter of the support tube (2).

3. The easily replaceable modular check valve according to claim 2, characterized in that: Both sides of the valve housing (1) are provided with auxiliary short tubes (10). Both sides of the valve housing (1) and both sides of the auxiliary short tubes (10) are provided with multiple bolt holes (18). The bolt holes (18) are filled with mounting bolts (17). The two auxiliary short tubes (10) are fixedly installed on both sides of the valve housing (1) by mounting bolts (17).

4. The easily replaceable modular check valve according to claim 3, characterized in that: The top of the auxiliary short tube (10) is integrally formed with a vertical tube (11), and a sliding plate (12) is slidably installed inside the vertical tube (11). The bottom of the sliding plate (12) is fixedly connected to a valve ball (13) located in the inner cavity of the auxiliary short tube (10).

5. The easily replaceable modular check valve according to claim 4, characterized in that: The inner cavities of the auxiliary short tube (10) are fixedly connected to both sides of the tube. The two adapter rings (14) are distributed on both sides of the valve ball (13), and both adapter rings (14) are adapted to the valve ball (13).

6. The easily replaceable modular check valve according to claim 5, characterized in that: A screw (15) is rotatably mounted on the top of the sliding plate (12), the top end of the screw (15) extends through to the top of the vertical pipe (11), and the screw (15) is threaded onto the vertical pipe (11).

7. The easily replaceable modular check valve according to claim 6, characterized in that: The top of the screw (15) is detachably mounted with a rotating handle (16) located outside the vertical tube (11), and the surface of the rotating handle (16) is provided with anti-slip texture.

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