Drainage pipe expansion joint convenient for angle positioning

Abstract

The utility model discloses a drainage pipe expansion joint convenient for angle positioning, which comprises an expansion joint, a sealing assembly and an angle positioning assembly, a limiting groove is fixed below the expansion joint, the sealing assembly is positioned at the upper end of the expansion joint, and the sealing assembly comprises a sealing cover, a sealing ring and a handle. The upper end of the telescopic joint is in threaded connection with the sealing cover, the sealing ring is arranged on the inner side of the sealing cover, the angle positioning assembly is located on the outer side of the telescopic joint and comprises a fixing shell, a first fixing block, a second fixing block, a rope and a suction cup, the fixing shell is arranged below the sealing cover, and the first fixing block and the second fixing block are arranged in the fixing shell. A first fixing block is arranged below the fixing shell, and a second fixing block is arranged below the first fixing block. The stability between the drainage pipe and the expansion joint can be improved, friction looseness between pipe walls is prevented, the firmness of the connecting position is improved, and outward water seepage from the connecting position is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline expansion joints, in particular to a drainage pipe expansion joint which is convenient for angle positioning. Background Art

[0002] In modern drainage processes, with the development of technology and techniques, rigid polyvinyl chloride pipes (U-PVC) are increasingly used. When modifying pipes, expansion joints are set to change the outlet position of the pipes. For example, the patent document with application number CN201920192259.9 discloses a new type of pipe expansion joint, which uses the first connection layer and the second connection layer to increase their radius, so that the first connection layer and the second connection layer act as clamping buffer rings, and the gasket and the buffer ring play a role in clamping the drainage pipe to prevent water from leaking out.

[0003] However, in the above-mentioned similar schemes, the drain pipe and the expansion joint are connected by glue, and the water in the drain pipe forms a downward impact along the side wall of the expansion joint. After long-term use, the glue connection is not tight, causing water to seep out from the connection. In addition, when installing the expansion joint and the oblique tee, it is difficult to measure the distance and angle between the two with a ruler, which makes it inconvenient to determine the position of the expansion joint.

[0004] Therefore, in view of this, the shortcomings of the existing structure are studied and improved, and a drainage pipe expansion joint that is easy to position at an angle is proposed. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a drainage pipe expansion joint that is easy to position at an angle, which solves the above-mentioned similar scheme proposed in the above-mentioned background technology. The drainage pipe and the expansion joint are connected by glue, and the water in the drainage pipe forms a downward impact along the side wall of the expansion joint. After long-term use, the connection at the glue is not tight, causing water to seep out from the connection. In addition, when installing the expansion joint and the oblique tee, it is difficult to measure the distance and angle between the two with a ruler, which makes it inconvenient to determine the position of the expansion joint.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a drainage pipe expansion joint that is convenient for angle positioning, comprising an expansion joint, a sealing assembly and an angle positioning assembly, a limiting groove is fixed at the bottom of the expansion joint, and the sealing assembly is located at the upper end of the expansion joint, and the sealing assembly comprises a sealing cover, a sealing ring and a handle, the upper end of the expansion joint is threadedly connected with the sealing cover, and the sealing ring is arranged on the inner side of the sealing cover, and two groups of handles are fixed on the outer side of the sealing cover, the angle positioning assembly is located on the outer side of the expansion joint, and the angle positioning assembly comprises a fixed shell, a first fixed block, a second fixed block, a rope and a suction cup, a fixed shell is arranged below the sealing cover, and a first fixed block is arranged below the fixed shell, and a second fixed block is arranged below the first fixed block, the rope is penetrated through the inner sides of the first fixed block and the second fixed block, and the suction cup is fixed on one side of the fixed shell, the first fixed block and the second fixed block close to the expansion joint.

[0007] Furthermore, a threaded protrusion is provided at the upper end of the telescopic joint, and a straight pipe is connected to the upper end of the telescopic joint.

[0008] Furthermore, the inner diameter of the threaded protrusion is larger than the outer diameter of the straight tube, and the inner wall of the telescopic joint fits tightly with the outer wall of the straight tube.

[0009] Furthermore, the sealing cover is connected with the telescopic joint through a threaded connection to form a disassembly structure, and the cross-section of the limiting groove is concave.

[0010] Furthermore, the fixed shell, the first fixed block and the second fixed block all form a disassembly structure through a suction cup and a telescopic joint, and the upper end of the rope is wound around the inner side of the fixed shell.

[0011] Furthermore, the sealing ring is made of rubber and is located outside the straight tube.

[0012] The utility model provides a drainage pipe expansion joint that is convenient for angle positioning and has the following beneficial effects:

[0013] It can improve the stability between the drainage pipe and the expansion joint, prevent the friction between the pipe walls from loosening, improve the firmness of the connection, and avoid water seepage from the connection. In addition, when installing the expansion joint and the inclined tee, the connection between the expansion joint and the inclined tee can be positioned to avoid the installation position from tilting. The specific contents are as follows:

[0014] Insert the sealing assembly to the outside of the upper straight pipe, move the expansion joint downward so that the limit groove is inserted on the bottom straight pipe, slightly move the expansion joint to make it in the appropriate position and tighten the sealing cover to the outside of the expansion joint by screwing. When the oblique tee needs to be connected, place the fixing box on the side away from the wall, and move the two sets of fixing blocks to form the prototype of the position after the oblique tee is connected through ropes, so that it can be installed accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of a drainage pipe expansion joint that is convenient for angle positioning according to the utility model;

[0016] Figure 2 This is a schematic diagram of the main cross-sectional structure of a drainage pipe expansion joint that is convenient for angle positioning according to the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of an angle positioning component of a drainage pipe expansion joint that is convenient for angle positioning according to the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of a sealing component of a drainage pipe expansion joint that is convenient for angle positioning according to the utility model;

[0019] Figure 5 It is a schematic diagram of the assembly structure of the main view surface of the installation of a drainage pipe expansion joint that is easy to position at an angle according to the utility model.

[0020] In the figure: 1, expansion joint; 11, threaded protrusion; 2, limit groove; 3, straight pipe; 4, sealing assembly; 401, sealing cover; 402, sealing ring; 403, handle; 5, angle positioning assembly; 501, fixed shell; 502, first fixed block; 503, second fixed block; 504, rope; 505, suction cup. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0022] like Figures 1 to 5As shown, a drainage pipe expansion joint that is easy to position at an angle includes an expansion joint 1, a sealing assembly 4 and an angle positioning assembly 5. The upper end of the expansion joint 1 is connected to a straight pipe 3. Because the inner diameter of the threaded protrusion 11 is larger than the outer diameter of the straight pipe 3, the inner wall of the expansion joint 1 fits tightly with the outer wall of the straight pipe 3, which can prevent sewage from corroding the pipe wall connection along the gap and prevent water from seeping out from the connection. A limiting groove 2 is fixed below the expansion joint 1, and the cross-section of the limiting groove 2 is a concave shape, so that the expansion joint 1 can resist the straight pipe 3, which can improve the stability between the drainage pipe and the expansion joint 1, prevent friction and loosening between the pipe walls, and improve the firmness of the connection.

[0023] The sealing component 4 is located at the upper end of the telescopic joint 1, and the sealing component 4 includes a sealing cover 401, a sealing ring 402 and a handle 403. The upper end of the telescopic joint 1 is threadedly connected with the sealing cover 401, and the upper end of the telescopic joint 1 is provided with a threaded protrusion 11, so that the sealing cover 401 can be tightened on the outside of the telescopic joint 1, and a sealing ring 402 is provided on the inner side of the sealing cover 401. The material of the sealing ring 402 is rubber material. When the sealing cover 401 is tightened, pressure is generated inward. Because the sealing ring 402 is located on the outside of the straight pipe 3, the straight pipe 3 can be clamped when the sealing ring 402 is squeezed, and two groups of handles 403 are fixed to the outside of the sealing cover 401. Because the sealing cover 401 is threadedly connected to the telescopic joint 1 to form a disassembly structure, the sealing component 4 can be disassembled through the handle 403 without using props, which is convenient for manual installation and disassembly.

[0024] The angle positioning assembly 5 is located on the outside of the telescopic joint 1. The angle positioning assembly 5 includes a fixed shell 501, a first fixed block 502, a second fixed block 503, a rope 504 and a suction cup 505. The fixed shell 501 is arranged below the sealing cover 401, and the first fixed block 502 is arranged below the fixed shell 501, and the second fixed block 503 is arranged below the first fixed block 502. The two sets of fixed blocks are used to change the trajectory of the rope 504, which is convenient for adapting to various situations. The rope 504 is penetrated through the inner sides of the first fixed block 502 and the second fixed block 503, and the upper end of the rope 504 is wrapped around the fixed block 502. On the inner side of the shell 501, the rope 504 is stretched by moving the two groups of fixed blocks. The connection position of the oblique tee and the telescopic joint 1 can be intuitively observed through the position of the rope 504, and the fixed shell 501, the first fixed block 502 and the second fixed block 503 are fixed with a suction cup 505 on one side close to the telescopic joint 1. The fixed shell 501, the first fixed block 502 and the second fixed block 503 form a disassembly structure with the telescopic joint 1 through the suction cup 505, which is convenient for moving the position of the fixed blocks. When installing the telescopic joint and the oblique tee, the connection between the telescopic joint and the oblique tee can be positioned to avoid tilting of the installation position.

[0025] In summary, when using this type of drainage pipe expansion joint that is easy to position at an angle, first, insert the sealing ring 402 and the sealing cover 401 in turn into the outer side of the upper straight pipe 3, and place the fixing box 501 on the side of the straight pipe 3 away from the wall, pull the second fixing block 503 and adsorb it on the outer side of the drainage pipe, drag the first fixing block 502 to make it adsorbed on the outer side of the straight pipe 3, and at this time, the direction of the rope 504 between the first fixing block 502 and the second fixing block 503 is the direction of the bevel of the oblique tee, adsorb the fixing shell 501 on the position of the expansion joint 1, cut the straight pipe 3 so that the limiting groove 2 is inserted into the straight pipe 3 at the bottom, and adsorb the fixing shell 501 on the outer wall of the expansion joint 1 again and make it perpendicular to the first fixing block 502, slightly move the position of the expansion joint 1 to make the rope 504 straight, and at this time, slide the sealing cover 401 downward to the top of the threaded protrusion 11, hold the handle tightly and turn the sealing cover 401 to tighten it on the outer side of the expansion joint 1, thereby fixing the position of the expansion joint 1.

Claims

1. A drainage pipe expansion joint that facilitates angle positioning, comprising an expansion joint (1), a sealing component (4) and an angle positioning component (5), characterized in that: A limiting groove (2) is fixed at the bottom of the telescopic joint (1), and the sealing assembly (4) is located at the upper end of the telescopic joint (1), and the sealing assembly (4) comprises a sealing cover (401), a sealing ring (402) and a handle (403); the upper end of the telescopic joint (1) is threadedly connected with the sealing cover (401), and the sealing ring (402) is arranged on the inner side of the sealing cover (401), and two groups of handles (403) are fixed on the outer side of the sealing cover (401); the angle positioning assembly (5) is located on the outer side of the telescopic joint (1), and the angle positioning assembly (5) comprises a fixing shell (501), a first fixing block ( 502), a second fixed block (503), a rope (504) and a suction cup (505), a fixed shell (501) is arranged below the sealing cover (401), and a first fixed block (502) is arranged below the fixed shell (501), and a second fixed block (503) is arranged below the first fixed block (502), the rope (504) is penetrated through the inner sides of the first fixed block (502) and the second fixed block (503), and the suction cup (505) is fixed on one side of the fixed shell (501), the first fixed block (502) and the second fixed block (503) close to the telescopic joint (1).

2. A drainage pipe expansion joint that facilitates angle positioning according to claim 1, characterized in that: The upper end of the telescopic joint (1) is provided with a threaded protrusion (11), and the upper end of the telescopic joint (1) is connected to a straight pipe (3).

3. A drainage pipe expansion joint that facilitates angle positioning according to claim 2, characterized in that: The inner diameter of the threaded protrusion (11) is larger than the outer diameter of the straight tube (3), and the inner wall of the telescopic joint (1) is tightly fitted to the outer wall of the straight tube (3).

4. A drainage pipe expansion joint that facilitates angle positioning according to claim 1, characterized in that: The sealing cover (401) is connected to the telescopic joint (1) via threads to form a disassembly structure, and the cross-section of the limiting groove (2) is concave.

5. The expansion joint for drainage pipe that is convenient for angle positioning according to claim 1, characterized in that: The fixed shell (501), the first fixed block (502) and the second fixed block (503) all form a disassembly structure with the telescopic joint (1) via the suction cup (505), and the upper end of the rope (504) is wound around the inner side of the fixed shell (501).

6. A drainage pipe expansion joint that facilitates angle positioning according to claim 2, characterized in that: The sealing ring (402) is made of rubber, and the sealing ring (402) is located outside the straight tube (3).

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