A check valve convenient for quick disassembly

Abstract

The utility model discloses a check valve convenient to quick dismounting, including check valve main part, check valve main part includes valve body, side pipe no.

Description

Technical Field

[0001] This utility model relates to the field of check valve technology, and in particular to a check valve that is easy to disassemble quickly. Background Technology

[0002] A check valve is a valve used to prevent the backflow of media in a pipeline. Its main function is to ensure that the fluid can only flow in one direction and cannot flow in the opposite direction. Once the medium attempts to flow back, the valve will automatically close to prevent this backflow. Check valves usually do not require external drive or manual intervention to operate, but rely on the fluid's own flow pressure and gravity to open or close automatically.

[0003] Chinese Patent Publication No. CN214222143U, published on 20210917, discloses a vertical or horizontal check valve with an impact buffer structure, including a check valve body, an upper arc-shaped sleeve, and a lower arc-shaped sleeve. The upper arc-shaped sleeve and the lower arc-shaped sleeve are disposed around the valve body of the check valve body and are closed into a cylindrical shape. Both ends of the check valve body are provided with connecting flanges for fixing to external pipelines, and the upper arc-shaped sleeve and the lower arc-shaped sleeve are located between the two connecting flanges.

[0004] Most existing check valves connect to external pipelines via flanges. The airtightness between flanges relies on the compression of the sealing ring. This compression requires the movement of the pipeline or valve body. After the pipeline is laid and fixed, the tight connection between the pipeline and the valve body makes valve body disassembly inconvenient. Therefore, there is an urgent need to propose a check valve that is easy to disassemble quickly to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a check valve that is easy to disassemble quickly in order to solve the above-mentioned problems.

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

[0007] A check valve that is easy to disassemble quickly includes a check valve body, the check valve body including a valve body, a first side pipe and a second side pipe, a convex ring fixedly connected to the outer wall of the second side pipe, a lap ring and a fixing component for fixing the lap ring are integrated on the outer side of the convex ring, a sealing component is integrated between the lap ring and the convex ring, a connecting pipe is fixedly connected to the outer wall of the lap ring by a collar, and a flange is fixedly connected to the open end of both the connecting pipe and the first side pipe.

[0008] Preferably, an insert ring is fixedly connected to the outer wall of the flange, and a plug is fixedly connected to the outer wall of the insert ring, the plug passing through the flange via a perforation.

[0009] Preferably, the outer wall of the flange has a groove that matches the outer wall of the insert ring.

[0010] Preferably, the sealing assembly includes a sealing ring, the outer wall of which engages with the inner wall of the vertical end of the overlapping ring via a groove.

[0011] Preferably, the fixing component includes a locking rod passing through the vertical end of the lap ring, and the outer wall of the locking rod is screwed to the outer wall of the convex ring through a screw hole.

[0012] Preferably, the locking rods are provided in multiple sets, and the multiple sets of locking rods are arranged in a ring.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0014] 1. In this application, the check valve body is placed between two sets of pipes. First, the flange on the first side pipe is connected to the external pipe until the flange is tightly connected to the corresponding pipe. Then, the connecting pipe is pulled so that the flange corresponding to the second side pipe contacts the other set of pipes. The flange is then tightly connected to the corresponding pipe by the fastening rod. At this time, the sealing ring between the overlapping ring and the convex ring is squeezed to ensure the airtightness between the two. Finally, the overlapping ring and the convex ring are connected in series by the locking rod to ensure the connection strength between the two. This ensures the stable connection of the check valve body. At the same time, the ease of disassembly and assembly of the check valve body is improved by integrating a clearance structure on the side pipe.

[0015] 2. In this application, the insert frame is fixed into the slot, and the insert passes through the perforation on the flange. When the side pipe is connected to the external pipe, the insert is also inserted into the matching hole on the external pipe. This does not affect the insertion of the fastening screw, and the series connection of the inserts enables the flange and the external pipe to be quickly aligned, thereby further improving the convenience of using the check valve that is easy to disassemble. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure according to an embodiment of the present utility model is shown;

[0017] Figure 2 A schematic diagram of the interlocking ring structure provided according to an embodiment of the present invention is shown;

[0018] Figure 3 A schematic diagram of a convex ring structure according to an embodiment of the present invention is shown;

[0019] Figure 4 A schematic diagram of a sealing ring structure according to an embodiment of the present invention is shown.

[0020] Legend:

[0021] 1. Check valve body; 101. Valve body; 102. Side pipe one; 103. Side pipe two; 2. Flange; 3. Sleeve; 4. Insert ring; 5. Slot; 6. Overlap ring; 7. Locking rod; 8. Raised ring; 9. Connecting pipe; 10. Sealing ring; 11. Collar; 12. Perforation. Detailed Implementation

[0022] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution:

[0024] A check valve that is easy to disassemble quickly includes a check valve body 1. The check valve body 1 includes a valve body 101, a first side pipe 102 and a second side pipe 103. A convex ring 8 is fixedly connected to the outer wall of the second side pipe 103. A lap ring 6 and a fixing component for fixing the lap ring 6 are integrated on the outside of the convex ring 8. A sealing component is integrated between the lap ring 6 and the convex ring 8. A connecting pipe 9 is fixedly connected to the outer wall of the lap ring 6 through a collar 11. A flange 2 is fixedly connected to the open end of both the connecting pipe 9 and the first side pipe 102.

[0025] Place the check valve body 1 between the two sets of pipes. First, connect the flange 2 on the side pipe 102 to the external pipe until the flange 2 is tightly connected to the corresponding pipe. Then, pull the connecting pipe 9 so that the flange 2 corresponding to the side pipe 103 contacts the other set of pipes. Then, use the fastening rod to complete the tight connection between the flange 2 and the corresponding pipe. At this time, the sealing ring 10 between the overlapping ring 6 and the convex ring 8 is squeezed to ensure the airtightness between the two. Finally, use the locking rod 7 to connect the overlapping ring 6 and the convex ring 8 in series to ensure the connection strength between the two. This ensures the stable connection of the check valve body 1. At the same time, by integrating the clearance structure on the side pipe, the ease of disassembly and assembly of the check valve body 1 is improved.

[0026] Specifically, such as Figure 2 and Figure 4As shown, a retaining ring 4 is fixedly connected to the outer wall of flange 2, and a insert 3 is fixedly connected to the outer wall of retaining ring 4. The insert 3 passes through flange 2 through through hole 12. A groove 5 is provided on the outer wall of flange 2 to fit with the outer wall of retaining ring 4, so as to prevent retaining ring 4 from protruding and fix retaining ring 4 into groove 5. The insert 3 passes through through hole 12 on flange 2. When connecting the side pipe to the external pipeline, the insert 3 is also inserted into the matching hole on the external pipeline. This does not affect the insertion of the fastening screw. Through the series connection of inserts 3, the flange 2 and the external pipeline are quickly aligned, thereby further improving the convenience of using the check valve that is easy to disassemble.

[0027] Specifically, such as Figure 2 and Figure 3 As shown, the sealing assembly includes a sealing ring 10. The outer wall of the sealing ring 10 engages with the inner wall of the vertical end of the overlapping ring 6 through a groove. The sealing ring 10 between the overlapping ring 6 and the convex ring 8 is compressed to ensure the airtightness between them. The fixing assembly includes a locking rod 7 that passes through the vertical end of the overlapping ring 6. The outer wall of the locking rod 7 is screwed to the outer wall of the convex ring 8 through a screw hole. Multiple sets of locking rods 7 are provided, and the multiple sets of locking rods 7 are arranged in a ring. The overlapping ring 6 and the convex ring 8 are connected in series through the locking rods 7 to ensure the connection strength between them.

[0028] Working principle: Place the check valve body 1 between two sets of pipes. First, connect the flange 2 on side pipe 102 to the external pipe until the flange 2 is tightly connected to the corresponding pipe. Then, pull the connecting pipe 9 to make the flange 2 corresponding to side pipe 103 contact the other set of pipes. The tightening rod completes the tight connection between the flange 2 and the corresponding pipe. At this time, the sealing ring 10 between the overlapping ring 6 and the convex ring 8 is compressed, ensuring airtightness between them. Finally, the locking rod 7 connects the overlapping ring 6 and the convex ring 8 in series to ensure the connection strength between them. This ensures a stable connection of the check valve body 1 while improving the ease of disassembly and assembly of the check valve body 1 by integrating a clearance structure on the side pipe. The insert ring 4 is fixed into the slot 5, and the insert 3 passes through the through hole 12 on the flange 2. When connecting the side pipe to the external pipeline, the insert 3 is also inserted into the matching hole on the external pipeline. This does not affect the insertion of the fastening screw. Through the series connection of the inserts 3, the flange 2 and the external pipeline are quickly aligned, which further improves the ease of use of the check valve that is easy to disassemble.

[0029] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A check valve that is easy to disassemble quickly, comprising a check valve body (1), wherein the check valve body (1) includes a valve body (101), a first side pipe (102) and a second side pipe (103), characterized in that, A convex ring (8) is fixedly connected to the outer wall of the second side pipe (103). A lap ring (6) and a fixing component for fixing the lap ring (6) are integrated on the outside of the convex ring (8). A sealing component is integrated between the lap ring (6) and the convex ring (8). A connecting pipe (9) is fixedly connected to the outer wall of the lap ring (6) through a collar (11). A flange (2) is fixedly connected to both the connecting pipe (9) and the open end of the first side pipe (102).

2. The check valve for easy and quick disassembly according to claim 1, characterized in that, The flange (2) is fixedly connected to an insert ring (4), and the insert ring (4) is fixedly connected to an insert cylinder (3) through a through hole (12) in the flange (2).

3. The check valve for easy and quick disassembly according to claim 2, characterized in that, The flange (2) has a groove (5) on its outer wall that matches the outer wall of the insert ring (4).

4. The check valve for easy and quick disassembly according to claim 3, characterized in that, The sealing assembly includes a sealing ring (10), the outer wall of which engages with the inner wall of the vertical end of the interlocking ring (6) through a groove.

5. A check valve for easy and quick disassembly according to claim 4, characterized in that, The fixing component includes a locking rod (7) that passes through the vertical end of the lap ring (6), and the outer wall of the locking rod (7) is screwed to the outer wall of the convex ring (8) through a screw hole.

6. A check valve for easy and quick disassembly according to claim 5, characterized in that, The locking rod (7) is provided in multiple sets, and the multiple sets of locking rods (7) are distributed in a ring.

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