Detachable check valve structure

Abstract

The utility model discloses a detachable check valve structure, and relates to the technical field of check valves. The check valve comprises a check valve body, second fixing rings are fixedly connected to the left side and the right side of the check valve body, second sealing rings are arranged on the left sides of the second fixing rings in a sleeved mode, water pipes are arranged on the left side and the right side of the check valve body, and parts connected with the two water pipes are the same. According to the check valve, the dismounting assemblies are arranged, specifically, the first bolt is rotated clockwise to enable the lifting block to move upwards, the top of the left side of the lifting block makes contact with the first fixing ring, the water pipe and the check valve body are made to be close to each other and extrude the second sealing ring, and the check valve body is made to be connected with the water pipe; and then the first bolt is rotated anticlockwise, so that the lifting block moves downwards, a gap can be generated between the water pipe and the check valve body, the check valve body can be taken out conveniently, and the check valve body can be replaced or maintained more conveniently.

Description

Technical Field

[0001] The utility model belongs to the technical field of check valves, and particularly relates to a detachable check valve structure. Background Technique

[0002] A check valve, also known as a one-way valve or a non-return valve, its basic function is to allow the fluid to flow in one direction in the pipeline while preventing reverse flow. Check valves are widely used in pump outlets, pipeline systems, water treatment plants, residential and commercial spaces, etc. to prevent fluid backflow and ensure system safety.

[0003] However, most of the existing check valves are connected by flanges. When connecting the check valve to the pipeline, it is necessary to align each flange hole and then rotate the bolts to connect the check valve to the pipeline. When disassembling, it is also necessary to rotate the bolts on each flange hole counterclockwise to remove the check valve. The operation is cumbersome, which causes inconvenience to the disassembly work and greatly reduces the work efficiency. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a detachable check valve structure. By setting a disassembly component, specifically, by rotating bolt one clockwise, the lifting block moves upward. The top left side of the lifting block contacts the first fixing ring, making the water pipe and the check valve body approach each other and squeeze the second sealing ring, so that the check valve body is connected to the water pipe. Then, by rotating bolt one counterclockwise, the lifting block moves downward, which can create a gap between the water pipe and the check valve body, facilitating the removal of the check valve body, and enabling more convenient replacement or repair of the check valve body. It solves the problem that when removing the existing check valve, it is necessary to rotate the bolts on each flange hole counterclockwise to remove the check valve, the operation is cumbersome, which causes inconvenience to the disassembly work and greatly reduces the work efficiency.

[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] The utility model is a detachable check valve structure, including a check valve body. The left and right sides of the check valve body are both fixedly connected with second fixing rings. The second fixing rings are sleeved with second sealing rings on the left side. Water pipes are arranged on the left and right sides of the check valve body. The parts connected by the two water pipes are the same. Three disassembly components are arranged on the right side of the water pipe on the left. The parts included in the three disassembly components are the same. The lower disassembly component includes a fixing block. The top of the fixing block is fixedly connected with the outer surface of the check valve body. The left side of the fixing block is fixedly connected with the right side of the second fixing ring. A groove is opened inside the fixing block. A limiting plate is rotatably connected to the inner wall of the groove. A bolt one is fixedly connected to the bottom of the limiting plate. The bolt one is rotatably connected to the inner wall of the groove above. A lifting block is threadedly connected to the outer surface of the bolt one;

[0007] A fixing ring 1 is fixedly connected to the outer surface of the water pipe, a limiting ring is fixedly connected to the inner wall of the water pipe, two sealing components are arranged on the outer surface of the check valve body, and the parts included in the two sealing components are the same. By rotating bolt 1, a gap is generated between the water pipe and the check valve body, which can facilitate the maintenance or replacement of the check valve body more conveniently.

[0008] Furthermore, the sealing component includes a protective sleeve. The inside of the protective sleeve is provided with a cavity. The inner wall of the protective sleeve is fixedly connected to the outer surface of the check valve body. A chute is opened on the inner wall of the protective sleeve. The chute penetrates through the check valve body and extends to the inside. A sealing pipe is arranged inside the check valve body. By providing the protective sleeve, the sealing component can be protected and prevented from being damaged.

[0009] Furthermore, a sealing ring 1 is sleeved on the left side of the sealing pipe. A fixing column 1 is fixedly connected to the front of the sealing pipe. A fixing plate is fixedly connected to the front of the fixing column 1. The fixing column 1 and the fixing plate can slide in the chute.

[0010] Furthermore, a gear is meshed with the groove at the top of the fixing plate. A fixing column 2 is fixedly connected to the front of the gear. A rhombic fixing block is fixedly connected to the front of the fixing column 2. By rotating the rhombic fixing block, the gear rotates together, and the rotation of the gear can drive the fixing plate to move left and right.

[0011] Furthermore, a thread groove is opened on the front of the rhombic fixing block. A bolt 2 is threadedly connected to the inner wall of the thread groove. The bolt 2 can rotate in the rhombic fixing block to achieve the effect of moving back and forth.

[0012] Furthermore, the outer ring of the sealing pipe contacts the inner wall of the check valve body. The side of the lifting block close to the fixing ring 1 contacts the surface of the fixing ring 1. The right side of the lifting block contacts the surface of the fixing block. The front of the fixing column 2 penetrates through the protective sleeve and extends to the outside. The rhombic fixing block is arranged outside the protective sleeve. The back of the bolt 2 contacts the outer surface of the protective sleeve. By rotating the bolt 2, the sealing pipe can be fixed in the water pipe, increasing the sealing effect between the check valve body and the water pipe.

[0013] Furthermore, annular grooves are opened on the opposite sides of the fixing ring 2 and the fixing ring 1. The annular grooves are matched with the sealing ring 2. The sealing ring 2 can increase the sealing performance between the check valve body and the water pipe and improve the sealing effect.

[0014] Furthermore, annular grooves 2 are opened on the opposite sides of the sealing pipe and the limiting ring. The annular grooves 2 are matched with the sealing ring 1. The sealing ring 1 can increase the sealing performance between the limiting ring and the sealing pipe and improve the sealing effect.

[0015] The utility model has the following beneficial effects:

[0016] 1. The utility model is provided with a disassembly component. Specifically, by rotating bolt 1 clockwise, the lifting block moves upward. The top left side of the lifting block contacts with fixing ring 1, causing the water pipe and the check valve body to approach each other and squeeze sealing ring 2, so that the check valve body is connected to the water pipe. Then, by rotating bolt 1 counterclockwise, the lifting block moves downward, creating a gap between the water pipe and the check valve body, facilitating the removal of the check valve body and enabling more convenient replacement or repair of the check valve body.

[0017] 2. The utility model is provided with a sealing component. Specifically, by rotating the diamond-shaped fixing block clockwise, the gear drives the fixing plate to move leftward. The fixing plate drives the sealing pipe to move leftward through fixing column 1, causing the sealing pipe to enter the interior of the water pipe. When the limiting ring contacts sealing ring 1, rotate bolt 2 clockwise. When the back of bolt 2 contacts the outer surface of the protective sleeve, it can fix the sealing pipe, enhancing the sealing effect between the check valve body and the water pipe.

[0018] Of course, it is not necessary for any product implementing the utility model to simultaneously achieve all the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of the utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 is a schematic diagram of the internal sectional structure of the front view of the utility model;

[0022] Figure 3 is for the utility model Figure 2 is an enlarged schematic diagram of A in the utility model;

[0023] Figure 4 is a schematic diagram of the internal structure of the protective sleeve of the utility model;

[0024] Figure 5 is for the utility model Figure 4 is an enlarged schematic diagram of B in the utility model.

[0025] In the drawings, the list of components represented by each reference numeral is as follows:

[0026] 1. Check valve body; 11. Water pipe; 111. Limit ring; 112. First fixing ring; 12. Sealing pipe; 13. First sealing ring; 14. Second sealing ring; 15. Second fixing ring; 2. Disassembly component; 21. Fixing block; 22. First bolt; 23. Limit plate; 24. Lifting block; 3. Sealing component; 31. Protective sleeve; 32. Chute; 33. First fixing column; 34. Fixing plate; 35. Second fixing column; 36. Gear; 37. Second bolt; 38. Rhombic fixing block. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0028] Please refer to Figures 1-5 As shown, the present invention is a detachable check valve structure, including a check valve body 1. Both the left and right sides of the check valve body 1 are fixedly connected with second fixing rings 15. A second sealing ring 14 is sleeved on the left side of the second fixing ring 15. Water pipes 11 are arranged on both the left and right sides of the check valve body 1. The parts connected by the two water pipes 11 are the same. On the right side of the left water pipe 11, three disassembly components 2 are arranged. The parts included in the three disassembly components 2 are the same. The lower disassembly component 2 includes a fixing block 21. The top of the fixing block 21 is fixedly connected with the outer surface of the check valve body 1. The left side of the fixing block 21 is fixedly connected with the right side of the second fixing ring 15. A groove is opened inside the fixing block 21. A limit plate 23 is rotatably connected to the inner wall of the groove. The bottom of the limit plate 23 is fixedly connected with a first bolt 22. The upper part of the first bolt 22 is rotatably connected to the inner wall of the groove. A lifting block 24 is threadedly connected to the outer surface of the first bolt 22;

[0029] A first fixing ring 112 is fixedly connected to the outer surface of the water pipe 11. A limit ring 111 is fixedly connected to the inner wall of the water pipe 11. Two sealing components 3 are arranged on the outer surface of the check valve body 1. The parts included in the two sealing components 3 are the same. By setting the disassembly component 2 in the present invention, specifically, by rotating the first bolt 22 clockwise, the lifting block 24 moves upward. The left top of the lifting block 24 contacts the first fixing ring 112, so that the water pipe 11 and the check valve body 1 approach each other and squeeze the second sealing ring 14, connecting the check valve body 1 and the water pipe 11. Then, by rotating the first bolt 22 counterclockwise, the lifting block 24 moves downward, enabling a gap to be generated between the water pipe 11 and the check valve body 1, facilitating the removal of the check valve body 1 and enabling more convenient replacement or repair of the check valve body 1.

[0030] The sealing assembly 3 includes a protective sleeve 31. The inside of the protective sleeve 31 is provided with a cavity. The inner wall of the protective sleeve 31 is fixedly connected to the outer surface of the check valve body 1. A chute 32 is formed in the inner wall of the protective sleeve 31. The chute 32 penetrates through the check valve body 1 and extends to the inside. A sealing pipe 12 is arranged inside the check valve body 1.

[0031] A first sealing ring 13 is sleeved on the left side of the sealing pipe 12. A first fixing column 33 is fixedly connected to the front of the sealing pipe 12. A fixing plate 34 is fixedly connected to the front of the first fixing column 33.

[0032] A gear 36 is meshed with the groove at the top of the fixing plate 34. A second fixing column 35 is fixedly connected to the front of the gear 36. A diamond-shaped fixing block 38 is fixedly connected to the front of the second fixing column 35.

[0033] A threaded groove is formed in the front of the diamond-shaped fixing block 38. A second bolt 37 is threadedly connected to the inner wall of the threaded groove.

[0034] The outer ring of the sealing pipe 12 is in contact with the inner wall of the check valve body 1. The side of the lifting block 24 close to the first fixing ring 112 is in contact with the surface of the first fixing ring 112. The right side of the lifting block 24 is in contact with the surface of the fixing block 21. The front of the second fixing column 35 penetrates through the protective sleeve 31 and extends to the outside. The diamond-shaped fixing block 38 is arranged outside the protective sleeve 31. The back of the second bolt 37 is in contact with the outer surface of the protective sleeve 31. In this utility model, by setting the sealing assembly 3, specifically by rotating the diamond-shaped fixing block 38 clockwise, the gear 36 drives the fixing plate 34 to move leftward. The fixing plate 34 drives the sealing pipe 12 to move leftward through the first fixing column 33, so that the sealing pipe 12 enters the water pipe 11. When the limiting ring 111 contacts the first sealing ring 13, rotate the second bolt 37 clockwise. When the back of the second bolt 37 contacts the outer surface of the protective sleeve 31, it can fix the sealing pipe 12 and enhance the sealing effect between the check valve body 1 and the water pipe 11.

[0035] Annular grooves are formed on the opposite sides of the second fixing ring 15 and the first fixing ring 112, and the annular grooves are matched with the second sealing ring 14.

[0036] Annular grooves are formed on the opposite sides of the sealing pipe 12 and the limiting ring 111, and the annular grooves are matched with the first sealing ring 13.

[0037] A specific application of this embodiment is as follows: When it is necessary to install the check valve body 1 on a pipeline, first install the second sealing ring 14 at the groove of the second fixing ring 15, and install the first sealing ring 13 at the groove on the left side of the sealing pipe 12. Then align the check valve body 1 with the water pipe 11, and then rotate the first bolt 22 clockwise. Due to the limiting effect of the fixing block 21, the lifting block 24 moves downward, enabling the top on the left side of the lifting block 24 to contact the outer wall of the first fixing ring 112, so that the first fixing ring 112 and the second fixing ring 15 approach and squeeze the second sealing ring 14. The same operation is performed on the other two disassembly components 2, which facilitates the installation of the check valve body 1.

[0038] After the connection between the check valve body 1 and the water pipe 11 is completed, the diamond-shaped fixing block 38 can be rotated clockwise. Since the gear 36 meshes with the fixing plate 34, the gear 36 drives the fixing plate 34 to move leftward. Since the first fixing column 33 is fixedly connected to the fixing plate 34 and the first fixing column 33 is fixedly connected to the outer wall of the sealing pipe 12, it drives the sealing pipe 12 to move leftward. When the limiting ring 111 contacts the first sealing ring 13, by rotating the second bolt 37 clockwise, the back of the second bolt 37 contacts the outer wall of the protective sleeve 31, so that the sealing pipe 12 achieves a fixed effect, enhancing the sealing effect between the check valve body 1 and the water pipe 11.

[0039] When it is necessary to replace or repair the check valve body 1, first rotate the diamond-shaped fixing block 38 counterclockwise to drive the sealing pipe 12 to move rightward away from the water pipe 11, and then rotate the first bolt 22 counterclockwise to drive the lifting block 24 to move upward. The same operation is performed on the other two disassembly components 2, creating a gap between the check valve body 1 and the water pipe 11, facilitating the removal of the check valve body 1 and enabling more convenient replacement or repair of the check valve body 1.

[0040] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0041] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not elaborate on all details and do not limit the present invention to only the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the relevant technical field can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A detachable check valve structure, comprising a check valve body (1), wherein the left and right sides of the check valve body (1) are fixedly connected to a fixing ring 2 (15), characterized in that: The left side of the second fixing ring (15) is sleeved with a second sealing ring (14); the left and right sides of the check valve body (1) are both provided with water pipes (11); the parts connected to the two water pipes (11) are the same; three groups of disassembly components (2) are provided on the right side of the water pipe (11) on the left side; the parts contained in the three groups of disassembly components (2) are the same; the disassembly components (2) located at the bottom include a fixing block (21); the top of the fixing block (21) is fixedly connected to the outer surface of the check valve body (1); the left side of the fixing block (21) is fixedly connected to the right side of the second fixing ring (15); a groove is provided inside the fixing block (21); the inner wall of the groove is rotatably connected to a limit plate (23); the bottom of the limit plate (23) is fixedly connected to a bolt (22); the upper part of the bolt (22) is rotatably connected to the inner wall of the groove; the outer surface of the bolt (22) is threadedly connected to a lifting block (24); The outer surface of the water pipe (11) is fixedly connected to a fixing ring 1 (112), the inner wall of the water pipe (11) is fixedly connected to a limiting ring (111), and the outer surface of the check valve body (1) is provided with two sealing assemblies (3), and the parts contained in the two sealing assemblies (3) are the same.

2. A detachable check valve structure according to claim 1, characterized in that: The sealing assembly (3) comprises a protective sleeve (31), the interior of the protective sleeve (31) is a hollow cavity, the inner wall of the protective sleeve (31) is fixedly connected to the outer surface of the check valve body (1), the inner wall of the protective sleeve (31) is provided with a slide groove (32), the slide groove (32) penetrates the check valve body (1) and extends to the interior, and a sealing tube (12) is provided inside the check valve body (1).

3. A detachable check valve structure according to claim 2, characterized in that: A sealing ring (13) is sleeved on the left side of the sealing tube (12), a fixing column (33) is fixedly connected to the front side of the sealing tube (12), and a fixing plate (34) is fixedly connected to the front side of the fixing column (33).

4. A detachable check valve structure according to claim 3, characterized in that: A gear (36) is meshedly connected at the groove on the top of the fixing plate (34), a second fixing column (35) is fixedly connected to the front of the gear (36), and a diamond-shaped fixing block (38) is fixedly connected to the front of the second fixing column (35).

5. A detachable check valve structure according to claim 4, characterized in that: The front side of the rhombus-shaped fixing block (38) is provided with a thread groove, and the inner wall of the thread groove is threadedly connected with a second bolt (37).

6. A detachable check valve structure according to claim 5, characterized in that: The outer ring of the sealing tube (12) contacts the inner wall of the check valve body (1); the side of the lifting block (24) close to the fixing ring (112) contacts the surface of the fixing ring (112); the right side of the lifting block (24) contacts the surface of the fixing block (21); the front side of the fixing column (35) passes through the protective sleeve (31) and extends to the outside; the diamond-shaped fixing block (38) is arranged on the outside of the protective sleeve (31); and the back side of the bolt (37) contacts the outer surface of the protective sleeve (31).

7. A detachable check valve structure according to claim 1, characterized in that: The corresponding sides of the second fixing ring (15) and the first fixing ring (112) are both provided with an annular groove, and the annular groove matches the second sealing ring (14).

8. The detachable check valve structure according to claim 3, characterized in that: The sealing tube (12) and the limiting ring (111) are each provided with an annular groove 2 on one side corresponding to the other, and the annular groove 2 matches the sealing ring 1 (13).

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