U-shaped pipe anti-blocking drainage system

Abstract

A U-shaped pipe anti-clogging drainage system includes a longitudinal blind pipe, a circumferential blind pipe, a transverse blind pipe, a water storage tank, a drain pipe, a switching valve assembly, a centrifugal pump, a water-blocking assembly, and a one-way valve. The circumferential blind pipe array is laid inside the tunnel. The outlet ends of the longitudinal blind pipes are connected to the circumferential blind pipes, and the transverse blind pipes are connected to the longitudinal blind pipes. Two water storage tanks are located on both sides of the tunnel and connected to the transverse blind pipes on the same side. Each water storage tank has two outlets, one higher and one lower. The higher outlet is connected to the outlet pipe, and the other outlet is connected to the transverse blind pipe via the centrifugal pump. A water-blocking assembly is installed between the centrifugal pump and the water storage tanks. A drain pipe is located on the side of the circumferential blind pipe and is connected to the water storage tank via the switching valve assembly. The power input end of the water-blocking assembly is located at the power output end of the switching valve assembly. The drainage system can accumulate drainage from the blind pipes to flush out blockages, improving resource utilization and preventing clogging.

Description

Technical Field

[0001] This utility model relates to the field of anti-clogging drainage technology, specifically a U-shaped pipe anti-clogging drainage system. Background Technology

[0002] With the development of the tunnel industry, the blockage of tunnel drainage pipes has become widespread. Blockage easily leads to increased water pressure behind the lining, water seepage and collapse at weak points in the tunnel lining, causing deterioration, cracking, instability, and even spalling of the support structure, seriously affecting the tunnel's lifespan and operational safety. Current prevention methods mainly include: water injection through tunnel boring holes, high-pressure air jetting, setting up dedicated drainage channels, increasing the diameter of blind holes and pipes, and increasing the number of drainage pipe outlets. However, these methods have high construction, operating, and maintenance costs.

[0003] Application number CN202221022921.4 discloses a blind pipe drainage structure that can prevent water seepage from a retaining wall, including a wall set on one side of a mountain. Multiple sets of drainage components are provided inside the mountain. Each drainage component includes multiple vertically arranged drainage pipes inserted into the mountain. The drainage pipes extend out of the mountain. Multiple seepage holes are provided at the part of the drainage pipes inside the mountain. Multiple through holes corresponding to the drainage pipes are provided on the wall. The outer end of the drainage pipe passes through the through hole. A vent is provided on one side of the wall, and the outer end of the drainage pipe is connected to the vent.

[0004] The aforementioned existing technology uses ducts and fans for drainage, but the airflow is limited and unstable. When the blind pipe is blocked, there may not be enough air to clear the blockage. Utility Model Content

[0005] The purpose of this invention is to provide a U-shaped pipe anti-clogging drainage system to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A U-shaped pipe anti-clogging drainage system includes a longitudinal blind pipe, a circumferential blind pipe, a transverse blind pipe, a water storage tank, a drain pipe, a switching valve assembly, a centrifugal pump, a water-blocking assembly, and a check valve. The circumferential blind pipe array is laid inside the tunnel. The outlet ends of the longitudinal blind pipes are connected to the circumferential blind pipes, and the transverse blind pipes are connected to the longitudinal blind pipes.

[0008] The two water storage tanks are located on both sides of the tunnel and connected to the transverse blind pipe on the same side. The water storage tanks are provided with two water outlets, one high and one low, on both sides. The higher water outlet is connected to the water outlet pipe, and the other water outlet, which serves as the high-pressure water jet inlet, is connected to the transverse blind pipe through a centrifugal pump. A water-proof component is provided between the centrifugal pump and the water storage tank.

[0009] The circumferential blind pipe is provided with a drain pipe on its side, and the drain pipe is connected to the water storage tank through a switch valve assembly.

[0010] Preferably, the switch valve assembly includes a T-shaped water pipe, a sealing plate, and a spring. One end of the T-shaped water pipe is connected to a drain pipe, and the other end is connected to a water storage tank. The sealing plate is vertically movable inside the T-shaped water pipe by the spring and is located below the outlet end of the drain pipe.

[0011] Preferably, the water-proof assembly includes a water-proof plate and a connecting rod. The water-proof plate is vertically and movably mounted on the water storage tank and located at the connection between the centrifugal pump and the water storage tank. One end of the connecting rod is connected to the sealing plate, and the other end is connected to the water-proof plate.

[0012] Preferably, the centrifugal pump and the water storage tank are connected by a one-way valve.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model discloses a U-shaped pipe anti-clogging drainage system. When a blockage occurs in the circumferential blind pipe, the water level inside the blind pipe rises continuously. When the water level reaches a certain height, water flows into the drain pipe for storage. When the accumulated water in the drain pipe reaches a certain weight, the switch valve assembly is opened, causing the water-blocking component to release its blocking action. At this time, the centrifugal pump device sprays high-pressure water to flush and unclog the entire drainage blind pipe system, thus preventing blockage. After the blockage is cleared, the switch valve assembly closes once the accumulated water has drained completely. The drainage system can accumulate drainage from the blind pipe for flushing blockages, improving resource utilization and preventing blockage. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a three-dimensional bottom view of the overall structure of this utility model;

[0017] Figure 3 This is a three-dimensional internal schematic diagram of the switching valve assembly in this utility model;

[0018] Figure 4 This is a three-dimensional schematic diagram of the internal structure of the water-proof component in this utility model.

[0019] In the diagram: 1 Longitudinal blind pipe, 2 Circumferential blind pipe, 3 Transverse blind pipe, 4 Water storage tank, 5 Drain pipe, 6 Switch valve assembly, 7 Centrifugal pump, 8 Water-proof assembly, 9 Check valve, 41 Outlet pipe, 61 T-shaped water pipe, 62 Sealing plate, 63 Spring, 81 Water-proof plate, 82 Connecting rod. Detailed Implementation

[0020] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example:

[0022] Please see Figures 1 to 4 This utility model provides a technical solution:

[0023] A U-shaped pipe anti-clogging drainage system includes a longitudinal blind pipe 1, a circumferential blind pipe 2, a transverse blind pipe 3, a water storage tank 4, a drain pipe 5, a switch valve assembly 6, a centrifugal pump 7, a water-blocking assembly 8, and a one-way valve 9. The circumferential blind pipe 2 is laid in an array inside the tunnel. The longitudinal blind pipe 1 is connected to the outlet end of the circumferential blind pipe 2, and the transverse blind pipe 3 is connected to the longitudinal blind pipe 1.

[0024] Two water storage tanks 4 are located on both sides of the tunnel and connected to the transverse blind pipe 3 on the same side. The water storage tanks 4 have two water outlets, one high and one low, on both sides. The higher water outlet is connected to the water outlet pipe 41, and the other water outlet, which serves as the high-pressure water jet inlet, is connected to the transverse blind pipe 3 through the centrifugal pump 7. The outlet of the water outlet pipe 41 is located in the central drainage ditch. A water-proof component 8 is provided between the centrifugal pump 7 and the water storage tanks 4.

[0025] A drain pipe 5 is provided on the side of the circumferential blind pipe 2. When the circumferential blind pipe is blocked, the water level in the circumferential blind pipe 2 will rise continuously. When the water level rises to a certain height, the water flows into the drain pipe 5. The drain pipe 5 is connected to the water storage tank 4 through the switch valve assembly 6.

[0026] As a preferred embodiment, the centrifugal pump 7 is a conventional technical means for those skilled in the art, and its principle and solution will not be described in detail here.

[0027] In a preferred embodiment, the switch valve assembly 6 includes a T-shaped water pipe 61, a sealing plate 62, and a spring 63. One end of the T-shaped water pipe 61 is connected to the drain pipe 5, and the other end is connected to the water storage tank 4. The sealing plate 62 is vertically movable within the T-shaped water pipe 61 via the spring 63 and is located below the outlet end of the drain pipe 5. The sealing plate 62 is higher than the communication hole between the T-shaped water pipe 61 and the side of the water storage tank 4. The sealing plate 62 forms a vertically movable pair within the T-shaped water pipe 61. A sealing ring is provided between the sealing plate 62 and the T-shaped water pipe 61. When water flows into the T-shaped water pipe 61 from the drain pipe 5, it continuously compresses the spring 63 through the sealing plate 62. When the sealing plate 62 is pressed down to a certain position, it connects the drain pipe 5 to the water storage tank 4.

[0028] In a preferred embodiment, the water-blocking assembly 8 includes a water-blocking plate 81 and a connecting rod 82. The water-blocking plate 81 is vertically movably mounted on the water storage tank 4 and located at the connection point between the centrifugal pump 7 and the water storage tank 4. The water-blocking plate 81 forms a vertically movable joint on the water storage tank 4. One end of the connecting rod 82 is connected to the sealing plate 62, and the other end is connected to the water-blocking plate 81. When the sealing plate 62 moves downward, it will drive the water-blocking plate 81 to move downward through the connecting rod 82.

[0029] In a preferred embodiment, the centrifugal pump 7 and the water storage tank 4 are connected by a one-way valve 9.

[0030] The working principle of this utility model:

[0031] 1. During normal drainage, water in the circumferential blind pipe 2 flows into the longitudinal blind pipe 1 and then through the transverse blind pipe 3 into the water storage tank 4. When the water level in the water storage tank 4 rises to a certain height, it will flow from the outlet pipe 41 into the central drainage ditch.

[0032] 2. When the circumferential blind pipe becomes blocked, the water level in the circumferential blind pipe 2 will continuously rise. When the water level rises to a certain height, the water flows into the drain pipe 5, and the water in the drain pipe 5 flows into the T-shaped water pipe 61. It will continuously compress the spring 63 through the sealing plate 62. When the sealing plate 62 is pressed down to a certain position, it will connect the drain pipe 5 with the water storage tank 4. The downward movement of the sealing plate 62 will drive the water-blocking plate 81 downward through the connecting rod 82. Then, the centrifugal pump 7 will pump out the water in the water storage tank 4 and spray high-pressure water to flush and unclog the entire drainage blind pipe system, thus preventing blockage.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A U-shaped pipe anti-clogging drainage system, comprising a longitudinal blind pipe (1), a circumferential blind pipe (2), a transverse blind pipe (3), a water storage tank (4), a drain pipe (5), a switch valve assembly (6), a centrifugal pump (7), a water-blocking assembly (8), and a one-way valve (9), wherein the circumferential blind pipe (2) is laid in an array inside a tunnel, the longitudinal blind pipe (1) is connected to the outlet end of the circumferential blind pipe (2), and the transverse blind pipe (3) is connected to the longitudinal blind pipe (1), characterized in that: Two water storage tanks (4) are located on both sides of the tunnel and connected to the transverse blind pipe (3) on the same side. The water storage tanks (4) are provided with two water outlets, one high and one low. The higher water outlet is connected to the water outlet pipe (41), and the other water outlet, which serves as the high-pressure water jet inlet, is connected to the transverse blind pipe (3) through a centrifugal pump (7). A water-proof component (8) is provided between the centrifugal pump (7) and the water storage tanks (4). The circumferential blind pipe (2) is provided with a drain pipe (5) on its side, and the drain pipe (5) is connected to the water storage tank (4) through a switch valve assembly (6).

2. The U-shaped pipe anti-clogging drainage system according to claim 1, characterized in that: The switch valve assembly (6) includes a T-shaped water pipe (61), a sealing plate (62) and a spring (63). One end of the T-shaped water pipe (61) is connected to the drain pipe (5) and the other end is connected to the water storage tank (4). The sealing plate (62) is vertically movable inside the T-shaped water pipe (61) by the spring (63) and is located below the water outlet end of the drain pipe (5).

3. The U-shaped pipe anti-clogging drainage system according to claim 2, characterized in that: The water-proof assembly (8) includes a water-proof plate (81) and a connecting rod (82). The water-proof plate (81) is vertically and movably mounted on the water storage tank (4) and located at the connection between the centrifugal pump (7) and the water storage tank (4). One end of the connecting rod (82) is connected to the sealing plate (62), and the other end is connected to the water-proof plate (81).

4. The U-shaped pipe anti-clogging drainage system according to claim 3, characterized in that: The centrifugal pump (7) is connected to the water storage tank (4) via a one-way valve (9).

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