Haff joint with filter screen

Abstract

The Haff joint comprises an upper shell, a pressure relief pipe is fixedly arranged in the middle of the upper shell, a pressure relief valve is arranged on the pressure relief pipe, a mounting groove is formed in the inner wall of the upper shell, the mounting groove is located at the lower end of the pressure relief pipe, a mounting ring is movably arranged in the mounting groove, and the filter screen is arranged in the mounting ring. A filter screen is fixedly arranged in the middle of the mounting ring, threaded columns are fixedly arranged on the inner wall of the mounting groove and located on the two sides, the mounting ring and the threaded columns are movably mounted, and fastening nuts are arranged on the threaded columns, so that impurities in the device can be blocked by arranging the filter screen; and therefore, the influence on the normal use of the pressure release valve due to the blockage caused by the entering of the pressure release pipe is prevented.

Description

Technical Field

[0001] This utility model relates to the field of split-type connector technology, and more specifically, to a split-type connector with a filter screen. Background Technology

[0002] A split pipe repair clamp is a type of detachable pipe repair fixture that uses two halves of a metal shell to wrap around the damaged part of the pipe. It achieves rapid leak sealing by utilizing the tightening force of bolts and the compression deformation of rubber sealing rings. Its core functions include live repair, compatibility with multiple materials, and corrosion protection. A pressure relief valve is usually installed at the top of the split pipe clamp to release pressure when the internal pressure increases. However, if a large amount of impurities clogs the inside of the clamp, it will make pressure release difficult, affecting the clamp's service life.

[0003] However, when the pressure relief pipe is being repaired by the half-clamp, it is easy for a large amount of impurities to become clogged inside, making it difficult for the half-clamp to release pressure in the future, which will have a certain impact on the service life of the half-clamp.

[0004] Furthermore, most of the rubber gaskets inside the split joint are directly glued to the inner wall of the shell, making it impossible to remove the rubber gaskets later. Over time, the rubber gaskets will inevitably wear down, affecting the sealing effect. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the problems existing in the prior art, this utility model provides a half-joint with a filter screen to solve the technical problem mentioned in the background art where, when the half-joint is used to repair a pipeline transporting a solid-liquid mixture, the inside of the pressure relief pipe is easily blocked with a large amount of impurities, making it difficult for the half-joint to achieve pressure relief in the subsequent process.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a split joint with a filter screen, comprising an upper housing, a pressure relief pipe fixedly disposed in the middle of the upper housing, a pressure relief valve disposed on the pressure relief pipe, an installation groove opened on the inner wall of the upper housing, the installation groove being located at the lower end of the pressure relief pipe, an installation ring movably disposed inside the installation groove, a filter screen fixedly disposed in the middle of the installation ring, threaded posts fixedly disposed on both sides of the inner wall of the installation groove, the installation ring being movably installed with the threaded posts, a fastening nut disposed on each threaded post, the fastening nut abutting against the outer wall of the installation ring, a lower housing disposed at the lower end of the upper housing, placement grooves opened at both ends of the upper housing and the lower housing, an installation ring movably disposed inside each placement groove, and a sealing ring fixedly disposed on the inner wall of each installation ring.

[0009] The present invention is further configured such that flanges are fixedly provided at both ends of the upper shell and the lower shell, and a clamping ring is provided on one side of each flange. The clamping ring is in contact with the outer wall of the mounting ring. A positioning post is fixedly provided on the inner wall of each clamping ring. A positioning hole is correspondingly opened on the outer wall of each mounting ring, and the positioning post is located inside the positioning hole.

[0010] The present invention is further configured such that connecting posts are provided on the inner wall of the compression ring and at the periphery, the connecting posts are movably installed with the flange, the connecting posts are provided with mounting nuts, the mounting nuts are threadedly connected to the connecting posts, and the mounting nuts abut against the flange.

[0011] The present invention is further configured such that a first strip-shaped block is provided on the outer wall of the lower shell on both sides, and a second strip-shaped block is provided on the outer wall of the upper shell on both sides. A fixing frame is provided on the lower end face of each of the first strip-shaped blocks. Multiple fixing frames are provided, and a rotating block is rotatably provided inside each fixing frame. A locking post is fixed on the upper end face of each rotating block. An avoidance hole is correspondingly opened on the upper end face of each of the second strip-shaped blocks, and the locking post is located inside the avoidance hole.

[0012] The present invention is further provided that each of the locking pins is provided with a locking nut, and the locking nut is threadedly connected to the locking pin.

[0013] The present invention is further configured such that a limiting ring is fixedly provided on the lower end face of each locking nut, and a limiting groove is provided on the outer end of each avoidance hole and on the upper end face of the second strip block, with the limiting ring located inside the limiting groove.

[0014] The present invention is further configured such that both ends of the upper shell and the lower shell are provided with grooves, and a rubber pad is movably provided inside the groove.

[0015] The present invention is further provided with a rubber sleeve at the connection position between the mounting ring and the mounting groove.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a splitter with a filter screen, which has the following beneficial effects:

[0018] 1. By setting up a pressure relief pipe, mounting groove, mounting ring, and filter screen, the filter screen at the bottom of the pressure relief pipe can block impurities inside the device, preventing them from entering the pressure relief pipe and causing blockage, which would affect the normal use of the pressure relief valve. The mounting ring can be removed by unfastening the fastening nut to facilitate rinsing the top and bottom surfaces of the filter screen for subsequent use.

[0019] 2. By setting up a placement groove, mounting ring, sealing ring, and clamping ring, the user can remove the clamping ring by removing the mounting nut on one side of the flange. At this time, the positioning pin on the clamping ring disengages from the positioning hole, and then the mounting ring and sealing ring can be removed for easy replacement.

[0020] 3. By setting up a fixed frame, a rotating block, a locking pin, and a locking nut, the rotating block can be rotated when connecting the upper and lower housings, so that the locking pin on its outer wall enters the avoidance hole. Then, the locking nut is rotated, and the bottom limiting ring presses the second strip block, causing the rubber gasket to deform, thereby increasing the sealing of the connection between the upper and lower housings and preventing water leakage. In addition, by setting a limiting groove, the locking nut can be prevented from coming out, making the installation more secure. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a half-section with a filter in its unused state.

[0022] Figure 2 This is a schematic diagram showing the installation positions of the mounting groove, mounting ring, and filter screen inside the upper housing;

[0023] Figure 3 Exploded view of the installation of the lower housing, sealing ring, clamping ring, and rubber gasket;

[0024] Figure 4 Exploded view of the installation of the locking pin and locking nut on the rotating block;

[0025] Figure 5 This is an exploded view showing the installation of the sealing ring and the clamping ring.

[0026] In the diagram: 1. Upper housing; 2. Pressure relief pipe; 3. Pressure relief valve; 4. Mounting groove; 5. Mounting ring; 6. Filter screen; 7. Threaded post; 8. Fastening nut; 9. Lower housing; 10. Placement groove; 11. Mounting ring; 12. Sealing ring; 13. Flange; 14. Compression ring; 15. Positioning post; 16. Positioning hole; 17. Connecting post; 18. Mounting nut; 19. First strip block; 20. Second strip block; 21. Fixing bracket; 22. Rotating block; 23. Locking post; 24. Avoidance hole; 25. Locking nut; 26. Limiting ring; 27. Limiting groove; 28. Groove; 29. ​​Rubber pad; 30. Rubber sleeve. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] Please see Figure 1-5 A type of split joint with a filter screen includes an upper housing 1. A pressure relief pipe 2 is fixedly installed in the middle of the upper housing 1. A pressure relief valve 3 is installed on the pressure relief pipe 2. An installation groove 4 is opened on the inner wall of the upper housing 1. The installation groove 4 is located at the lower end of the pressure relief pipe 2. An installation ring 5 is movably installed inside the installation groove 4. A filter screen 6 is fixedly installed in the middle of the installation ring 5. Threaded posts 7 are fixedly installed on both sides of the inner wall of the installation groove 4. The installation ring 5 is movably installed with the threaded posts 7. A fastening nut 8 is provided on each threaded post 7. The fastening nut 8 abuts against the outer wall of the installation ring 5. A lower housing 9 is provided at the lower end of the upper housing 1. Placement grooves 10 are opened at both ends of the upper housing 1 and the lower housing 9. An installation ring 11 is movably installed inside the placement groove 10. A sealing ring 12 is fixedly installed on the inner wall of the installation ring 11. A rubber sleeve 30 is provided at the connection position between the installation ring 5 and the installation groove 4.

[0031] In this embodiment, flanges 13 are fixedly provided at both ends of the upper housing 1 and the lower housing 9. A clamping ring 14 is provided on one side of each flange 13. The clamping ring 14 is in contact with the outer wall of the mounting ring 11. A positioning post 15 is fixedly provided on the inner wall of each clamping ring 14. A positioning hole 16 is correspondingly opened on the outer wall of each mounting ring 11. The positioning post 15 is located inside the positioning hole 16. A connecting post 17 is provided on the inner wall of the clamping ring 14 and located at the periphery. The connecting post 17 is movably installed with the flange 13. A mounting nut 18 is provided on each connecting post 17. The mounting nut 18 is threadedly connected to the connecting post 17. The mounting nut 18 abuts against the flange 13.

[0032] More specifically, by installing a filter screen 6 at the bottom of the pressure relief pipe 2, impurities inside the device can be blocked to prevent them from entering the pressure relief pipe 2 and causing blockage, which would affect the normal use of the pressure relief valve 3. Subsequently, the mounting ring 5 can be removed by disassembling the fastening nut 8 to facilitate rinsing the upper and lower surfaces of the filter screen 6. When the sealing ring 12 needs to be replaced, the user can remove the clamping ring 14 by removing the mounting nut 18 on one side of the flange 13. At this time, the positioning pin 15 on the clamping ring 14 disengages from the positioning hole 16, and then the mounting ring 11 and the sealing ring 12 can be removed for easy replacement.

[0033] Please see Figure 1 , Figure 2 and Figure 4 As an embodiment for fixing the upper shell 1 and the lower shell 9: a first strip block 19 is provided on the outer wall of the lower shell 9 on both sides, and a second strip block 20 is provided on the outer wall of the upper shell 1 on both sides. A fixing bracket 21 is provided on the lower end face of the first strip block 19. Multiple fixing brackets 21 are provided, and rotating blocks 22 are rotatably provided inside each of them. A locking pin 23 is fixed on the upper end face of each rotating block 22. A corresponding avoidance hole 24 is opened on the upper end face of each second strip block 20. The locking pin 23 is located inside the avoidance hole 24. A locking nut 25 is provided on each locking pin 23. The locking nut 25 is threadedly connected to the locking pin 23. A limiting ring 26 is fixed on the lower end face of each locking nut 25. A limiting groove 27 is opened on the outer end of the avoidance hole 24 and on the upper end face of the second strip block 20. The limiting ring 26 is located inside the limiting groove 27.

[0034] Specifically, when connecting the upper housing 1 and the lower housing 9, the rotating block 22 can be rotated so that the locking pin 23 on its outer wall enters the avoidance hole 24. Then, the locking nut 25 is rotated so that the limiting ring 26 at its bottom presses against the second strip block 20, causing the rubber pad 29 to deform. This increases the sealing of the connection between the upper housing 1 and the lower housing 9, preventing water leakage. Furthermore, by setting the limiting groove 27, the locking nut 25 can be prevented from coming out, making the installation more secure.

[0035] Please refer to Figure 3 As a further embodiment to increase the sealing of the connection between the upper housing 1 and the lower housing 9: both ends of the upper housing 1 and the lower housing 9 are provided with grooves 28, and rubber pads 29 are movably provided inside the grooves 28.

[0036] Specifically, the sealing at the connection between the upper housing 1 and the lower housing 9 can be further improved to prevent water leakage.

[0037] In summary, when using the overall equipment: the user can install the upper housing 1 and lower housing 9 at the location requiring sealing, then rotate the rotating block 22 so that the locking pin 23 on its outer wall enters the avoidance hole 24. Next, rotate the locking nut 25 and press the bottom limiting ring 26 against the second strip block 20, causing the rubber gasket 29 to deform, thereby increasing the sealing of the connection between the upper housing 1 and lower housing 9, preventing water leakage. Furthermore, the limiting groove 27 prevents the locking nut 25 from coming out, making the installation more secure. Additionally, a filter is installed at the bottom of the pressure relief pipe 2. The filter screen 6 can block impurities inside the device to prevent them from entering the pressure relief pipe 2 and causing blockage, which would affect the normal use of the pressure relief valve 3. The mounting ring 5 can be removed by unfastening the fastening nut 8 to facilitate rinsing the upper and lower surfaces of the filter screen 6. When the sealing ring 12 needs to be replaced, the user can remove the clamping ring 14 by unfastening the mounting nut 18 on one side of the flange 13. At this time, the positioning pin 15 on the clamping ring 14 will disengage from the positioning hole 16, and then the mounting ring 11 and the sealing ring 12 can be removed for easy replacement.

[0038] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A splitter with a filter screen, comprising an upper housing (1), characterized in that: A pressure relief pipe (2) is fixedly installed in the middle of the upper housing (1). A pressure relief valve (3) is installed on the pressure relief pipe (2). An installation groove (4) is opened on the inner wall of the upper housing (1). The installation groove (4) is located at the lower end of the pressure relief pipe (2). An installation ring (5) is movably installed inside the installation groove (4). A filter screen (6) is fixedly installed in the middle of the installation ring (5). Threaded posts (7) are fixedly installed on both sides of the inner wall of the installation groove (4). The mounting rings (5) are movably installed with the threaded post (7). Each threaded post (7) is provided with a fastening nut (8). Each fastening nut (8) abuts against the outer wall of the mounting ring (5). The lower end of the upper housing (1) is provided with a lower housing (9). Both ends of the upper housing (1) and the lower housing (9) are provided with placement grooves (10). Each placement groove (10) is movably provided with a mounting ring (11). Each mounting ring (11) is fixedly provided with a sealing ring (12) on its inner wall.

2. A splitter with a filter screen according to claim 1, characterized in that: Both ends of the upper housing (1) and the lower housing (9) are fixedly provided with flanges (13). Each flange (13) has a clamping ring (14) on one side. Each clamping ring (14) is in contact with the outer wall of the mounting ring (11). Each clamping ring (14) has a positioning pin (15) fixedly provided on the inner wall of the clamping ring (14). Each mounting ring (11) has a corresponding positioning hole (16) on the outer wall of the mounting ring (11). Each positioning pin (15) is located inside the positioning hole (16).

3. A split joint with a filter screen according to claim 2, characterized in that: Connecting posts (17) are provided on the inner wall of the clamping ring (14) and at the periphery. The connecting posts (17) are movably installed with the flange (13). Each connecting post (17) is provided with a mounting nut (18). The mounting nut (18) is threadedly connected to the connecting post (17). The mounting nut (18) abuts against the flange (13).

4. A splitter with a filter screen according to claim 1, characterized in that: The lower housing (9) has a first strip block (19) on its outer wall and on both sides. The upper housing (1) has a second strip block (20) on its outer wall and on both sides. The lower end face of the first strip block (19) is provided with a fixing frame (21). The fixing frame (21) is provided with multiple fixing frames and each of them has a rotating block (22) inside. The upper end face of each rotating block (22) is fixed with a locking pin (23). The upper end face of each second strip block (20) is provided with a corresponding avoidance hole (24). The locking pin (23) is located inside the avoidance hole (24).

5. A splitter with a filter screen according to claim 4, characterized in that: Each locking post (23) is provided with a locking nut (25), and the locking nut (25) is threadedly connected to the locking post (23).

6. A splitter with a filter screen according to claim 5, characterized in that: The lower end face of the locking nut (25) is fixedly provided with a limiting ring (26), and the outer end of the avoidance hole (24) and the upper end face of the second strip block (20) are provided with a limiting groove (27), and the limiting ring (26) is located inside the limiting groove (27).

7. A splitter with a filter screen according to claim 1, characterized in that: Both ends of the upper shell (1) and the lower shell (9) are provided with grooves (28), and rubber pads (29) are movably provided inside the grooves (28).

8. A splitter with a filter screen according to claim 1, characterized in that: A rubber sleeve (30) is provided at the connection position between the mounting ring (5) and the mounting groove (4).

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