Leakage-proof device of drainage pipeline connector

Abstract

The utility model relates to the technical field of drainage pipes, and discloses a leakage-proof device of a drainage pipeline connector, which comprises a pipeline assembly, and the pipeline assembly comprises a bent pipe and a straight pipe. The leakage-proof connecting assembly comprises a connecting pipe and a ferrule; the two ends of the connecting pipe are each provided with a broadened port, the connecting pipe and the broadened ports are integrally formed, and leakage-proof structures are arranged in the broadened ports. One end of the straight pipe and one end of the bent pipe are clamped in the widened port, an external thread groove is formed in the outer wall face of the widened port, an internal thread groove is formed in the inner wall face of the ferrule, and the ferrule is arranged outside the corresponding widened port in a sleeving mode and plays a role in limiting and reinforcing the widened port. The connecting ends of the bent pipe and the straight pipe are clamped between the corresponding limiting rings and the broadened ports, and the first sealing rings are arranged on the outer wall faces of the limiting rings, so that the sealing performance of the device is improved, and the leakage-proof effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of drainage pipe technology, and in particular to a leak-proof device for drainage pipe interfaces. Background Technology

[0002] Municipal drainage pipes are an important infrastructure under municipal roads, mainly responsible for collecting, transporting, and discharging wastewater and rainwater within cities and urban areas to prevent water pollution and urban flooding. Because drainage pipes incorporate rainwater and sewage separation measures—rainwater is generally discharged into nearby rivers, while sewage is discharged into sewage treatment plants—municipal drainage pipes include both rainwater and sewage pipes.

[0003] The most common connection method for municipal drainage pipes is the sleeve clamp connection, which is easy to install and has good sealing performance. However, after long-term use, the rubber sealing ring will age and easily cause leakage. It is necessary to improve its structure to enhance its leak-proof performance.

[0004] Therefore, those skilled in the art have provided a leak-proof device for drainage pipe interfaces to solve the problems mentioned in the background art. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a leak-proof device for drainage pipe interfaces, solving the problems mentioned in the background section.

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

[0007] A leak-proof device for a drainage pipe interface includes: a pipe assembly comprising a bend and a straight pipe; a leak-proof connection assembly disposed between the bend and the straight pipe, comprising a connecting pipe and a collar; both ends of the connecting pipe are provided with widened ports, the connecting pipe and the widened ports are integrally formed, the outer wall surface of the widened port is provided with an external thread groove, the inner wall surface of the collar is provided with an internal thread groove, the collar is fitted over the corresponding widened port, and the interior of the widened port is provided with a leak-proof structure.

[0008] According to the anti-leakage device of the drainage pipe interface, the sleeve and the widened port are connected by threads, and the end of the widened port away from the connecting pipe is provided with a locking groove.

[0009] According to the anti-leakage device of the drainage pipe interface, each of the locking grooves has a locking block that is movably locked in place, and a second sealing ring is fixedly connected to one side wall of the locking block.

[0010] According to the aforementioned anti-leakage device for the drainage pipe interface, the anti-leakage structure includes a limiting ring fixedly installed on the inner wall of the widened port. The limiting ring is circular, and a first sealing ring is provided on the outer wall of the limiting ring.

[0011] According to the anti-leakage device of the drainage pipe interface, the inner wall surface of the limiting ring and the inner wall surface of the connecting pipe are on the same arc surface.

[0012] According to the anti-leakage device of the drainage pipe interface, the inner wall surface of the widened port is provided with equally spaced filling grooves, which are connected to the locking grooves, and the filling grooves can be filled with waterproof glue.

[0013] This utility model provides a leak-proof device for drainage pipe interfaces. It has the following beneficial effects:

[0014] (1) By setting a leak-proof connection component between the bend and the straight pipe, one end of the straight pipe and the bend are engaged in the widened port. An external thread groove is opened on the outer wall of the widened port, and an internal thread groove is opened on the inner wall of the collar. The collar is fitted outside the corresponding widened port, which plays a role in limiting and reinforcing the widened port. By setting a leak-proof structure in the widened port, the connection end of the bend and the straight pipe is engaged between the corresponding limiting ring and the widened port. The first sealing ring is set on the outer wall of the limiting ring to improve the sealing performance of the device and achieve the leak-proof effect.

[0015] (2) An external thread groove is provided on the outer wall surface of the widened port, and an internal thread groove is provided on the inner wall surface of the collar. The collar is fitted over the corresponding widened port to limit and reinforce the widened port. The collar and the widened port are connected by a thread, which facilitates installation and disassembly.

[0016] (3) By opening equally spaced filling grooves on the inner wall of the widened port, and opening locking grooves on the end of the widened port away from the connecting pipe, the filling grooves and locking grooves are connected to each other, which facilitates the filling of waterproof glue in the filling grooves during installation, ensuring that the gap between the pipe and the inner wall of the widened port is filled with waterproof glue, further improving the leak-proof performance of the device. The locking block is locked in the locking groove, and the locking block is fixedly connected to the second sealing ring on one side wall of the locking groove to prevent water from flowing out through the locking groove. The collar clamps the filling groove and the widened port during installation, and at the same time blocks the locking block to prevent the locking block from moving. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the installed structure of a leak-proof device for a drainage pipe interface according to the present invention.

[0018] Figure 2 This is an open-structure diagram of a leak-proof device for a drainage pipe interface according to the present invention.

[0019] Figure 3 This is a three-dimensional structural diagram of the anti-leakage connection component of an anti-leakage device for a drainage pipe interface according to the present invention.

[0020] Figure 4 This is a cross-sectional view of the widened port of a leak-proof device for a drainage pipe interface according to the present invention.

[0021] Figure 5 This is a three-dimensional structural diagram of the limiting ring and the first sealing ring of the anti-leakage device for a drainage pipe interface according to the present invention;

[0022] Figure 6 This is a three-dimensional structural diagram of the locking block and the second sealing ring of a leak-proof device for a drainage pipe interface according to this utility model.

[0023] Legend:

[0024] 10. Bend; 11. Straight pipe; 12. Leak-proof connection assembly; 13. Collar; 15. Internal threaded groove; 16. Connecting pipe; 17. Widened port; 18. External threaded groove; 19. Limiting ring; 20. Filling groove; 21. Engaging block; 22. First sealing ring; 23. Second sealing ring; 24. Engaging groove. Detailed Implementation

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] In the description of the embodiments of this utility model, it should be noted that the terms "center," "upper," "lower," "inner," "outer," and "side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0028] like Figure 1-6As shown: A leak-proof device for a drainage pipe interface, comprising: a pipe assembly including a bend 10 and a straight pipe 11; a leak-proof connection assembly 12 disposed between the bend 10 and the straight pipe 11, the leak-proof connection assembly 12 including a connecting pipe 16 and a collar 13; both ends of the connecting pipe 16 are provided with widened ports 17, the connecting pipe 16 and the widened ports 17 are integrally formed, the outer wall surface of the widened port 17 is provided with an external thread groove 18, the inner wall surface of the collar 13 is provided with an internal thread groove 15, the collar 13 is fitted over the corresponding widened port 17, and the inside of the widened port 17 is provided with a leak-proof structure.

[0029] Specifically, by setting a leak-proof connection component 12 between the bend 10 and the straight pipe 11, one end of the straight pipe 11 and the bend 10 is engaged in the widened port 17. An external threaded groove 18 is opened on the outer wall surface of the widened port 17, and an internal threaded groove 15 is opened on the inner wall surface of the collar 13. The collar 13 is fitted over the corresponding widened port 17, which serves to limit and reinforce the widened port 17. By setting a leak-proof structure in the widened port 17, the connection end of the bend 10 and the straight pipe 11 is engaged between the corresponding limiting ring 19 and the widened port 17. A first sealing ring 22 is set on the outer wall surface of the limiting ring 19 to improve the sealing performance of the device and achieve a leak-proof effect.

[0030] The collar 13 and the widened port 17 are connected by a thread.

[0031] Specifically, an external threaded groove 18 is provided on the outer wall surface of the widened port 17, and an internal threaded groove 15 is provided on the inner wall surface of the collar 13. The collar 13 is fitted onto the corresponding widened port 17 to limit and reinforce the widened port 17. The collar 13 and the widened port 17 are connected by threads, which facilitates installation and disassembly.

[0032] Each end of the widened port 17 away from the connecting pipe 16 has a locking groove 24. A locking block 21 is movably engaged within each locking groove 24, and a second sealing ring 23 is fixedly connected to one side wall of the locking block 21 within the locking groove 24. The leak-proof structure includes a limiting ring 19 fixedly installed on the inner wall of the widened port 17. The limiting ring 19 is annular, and a first sealing ring 22 is provided on its outer wall. The inner wall of the limiting ring 19 is on the same arc surface as the inner wall of the connecting pipe 16. Equally spaced filling grooves 20 are provided on the inner wall of the widened port 17, communicating with the locking grooves 24, and the filling grooves 20 can be filled with waterproof adhesive.

[0033] Specifically, by providing equally spaced filling grooves 20 on the inner wall of the widened port 17, and by providing engaging grooves 24 on the end of the widened port 17 away from the connecting pipe 16, the filling grooves 20 and engaging grooves 24 are interconnected, facilitating the filling of the filling grooves 20 with waterproof adhesive during installation. This ensures that the gap between the pipe and the inner wall of the widened port 17 is filled with waterproof adhesive, further improving the leak-proof performance of the device. The engaging block 21 engages in the engaging groove 24, and the engaging block 21 is fixedly connected to the second sealing ring 23 on one side wall of the engaging groove 24 to prevent water from flowing out through the engaging groove 24. During installation, the collar 13 clamps the filling groove 20 and the widened port 17, and at the same time blocks the engaging block 21 to prevent it from moving.

[0034] The working principle of the anti-leakage device for a drainage pipe interface disclosed in this application is as follows: An anti-leakage connection component 12 is installed between the bend 10 and the straight pipe 11. One end of the straight pipe 11 and the bend 10 is engaged within the widened port 17. An external threaded groove 18 is formed on the outer wall of the widened port 17, and an internal threaded groove 15 is formed on the inner wall of the collar 13. The collar 13 is fitted over the corresponding widened port 17, providing a limiting and reinforcing function. By installing the anti-leakage structure at the widened port 17, the connection ends of the bend 10 and the straight pipe 11 are engaged within the... Between the corresponding limiting ring 19 and the widened port 17, a first sealing ring 22 is set on the outer wall surface of the limiting ring 19 to improve the sealing performance of the device and achieve a leak-proof effect. By opening equally spaced filling grooves 20 on the inner wall surface of the widened port 17, and opening engagement grooves 24 on the end of the widened port 17 away from the connecting pipe 16, the filling grooves 20 and engagement grooves 24 are interconnected, which facilitates the filling of the filling grooves 20 with waterproof glue during installation, ensuring that the gap between the pipe and the inner wall surface of the widened port 17 is filled with waterproof glue, further improving the leak-proof performance of the device.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A leak-proof device for a drainage pipe interface, characterized in that, include: A pipe assembly comprising a bend (10) and a straight pipe (11); Leak-proof connection assembly (12), the leak-proof connection assembly (12) is disposed between the bend (10) and the straight pipe (11), the leak-proof connection assembly (12) includes a connecting pipe (16) and a collar (13); Both ends of the connecting pipe (16) are provided with widened ports (17). The connecting pipe (16) and the widened ports (17) are integrally formed. An external threaded groove (18) is opened on the outer wall surface of the widened port (17), and an internal threaded groove (15) is opened on the inner wall surface of the collar (13). The collar (13) is fitted on the corresponding widened port (17), and a leak-proof structure is provided inside the widened port (17).

2. The leak-proof device for the drainage pipe interface according to claim 1, characterized in that: The collar (13) and the widened port (17) are connected by threads. The end of the widened port (17) away from the connecting pipe (16) is provided with a locking groove (24).

3. The leak-proof device for the drainage pipe interface according to claim 2, characterized in that: Each of the engagement grooves (24) is equipped with an engagement block (21), and the engagement block (21) is fixedly connected to a second sealing ring (23) on one side wall of the engagement groove (24).

4. The leak-proof device for the drainage pipe interface according to claim 1, characterized in that: The leak-proof structure includes a limiting ring (19) fixedly installed on the inner wall of the widened port (17). The limiting ring (19) is circular, and a first sealing ring (22) is provided on the outer wall of the limiting ring (19).

5. The leak-proof device for the drainage pipe interface according to claim 4, characterized in that: The inner wall surface of the limiting ring (19) and the inner wall surface of the connecting pipe (16) are on the same arc surface.

6. The leak-proof device for the drainage pipe interface according to claim 1, characterized in that: The inner wall of the widened port (17) is provided with equally spaced filling grooves (20), which are connected to the locking groove (24). Waterproof adhesive can be filled into the filling grooves (20).

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