Waterlogging-preventing drainage device for riverway

By installing flood-proof pipes and water-blocking components on drainage pipes, and using ultrasonic level sensors and waterproof motors to automatically adjust the water-blocking state, the problem of river backflow was solved, achieving both effectiveness and safety in flood control and drainage.

CN224173455UActive Publication Date: 2026-04-28SHAOGUAN MUNICIPAL CONSTR ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAOGUAN MUNICIPAL CONSTR ENG CO LTD
Filing Date
2025-04-15
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

During periods of heavy rainfall, backflow into urban rivers can cause drainage systems to fail, leading to flooding and endangering municipal facilities and personal safety. Existing technologies are insufficient to effectively prevent river water from flowing back into drainage pipes.

Method used

Flood-proof pipes are installed on drainage pipes, equipped with ultrasonic level sensors and water-blocking components. Waterproof motors drive lead screws and sealing baffles to automatically adjust the opening and closing of the water-blocking components according to the river water level, preventing river water from flowing back into the river while allowing urban water to flow into the river normally.

Benefits of technology

It effectively prevents river water from flowing back into drainage pipes, avoids waterlogging, protects municipal facilities and traffic safety, and ensures the normal operation of the drainage system.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a waterlogging-preventing drainage device for a river channel, which relates to the technical field of waterlogging prevention and comprises a waterlogging-preventing pipeline, the waterlogging-preventing pipeline is fixedly sleeved on a drainage pipeline, a first support is fixedly mounted on the outer wall of the waterlogging-preventing pipeline, a second support is fixedly mounted at the upper end of the waterlogging-preventing pipeline, and a third support is fixedly mounted on the inner wall of the waterlogging-preventing pipeline. An ultrasonic liquid level sensor is fixedly installed on the first support, a water retaining assembly is installed on the second support and the third support, a waterlogging prevention pipeline is arranged on the drainage pipeline, and the ultrasonic liquid level sensor and the water retaining assembly are installed on the waterlogging prevention pipeline through the first support, the second support and the third support. The ultrasonic liquid level sensor can monitor the river water level, and the water retaining assembly can close the lower end of the waterlogging prevention pipeline when the river water level is too high, so that river water is prevented from flowing backwards into the drainage pipeline, and waterlogging caused by the fact that river water flows backwards into cities through the drainage pipeline is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of river flood control technology, and in particular to a river flood control and drainage device. Background Technology

[0002] Summer, as the peak season for heavy rainfall, is becoming the most severe test for urban flood control systems. Short-duration heavy rainfall not only breaks historical records but also causes a rapid rise in river levels, creating a reverse impact on municipal drainage systems. The surging river water, carrying silt and debris, forms backflow channels at the confluence of drainage pipes and rivers, flooding into the city's underground pipe network. This natural backlash often has a chain reaction of destructive effects: firstly, drainage manhole covers shift under the pressure difference, causing road collapses or even creating "urban traps" that swallow pedestrians; secondly, the backflow of floodwater creates high-speed water flows within the closed pipe network, impacting the pipe structure and causing joints to loosen or even burst; when the overloaded drainage system completely fails, water gushes out from manholes, underground garages, and low-lying areas of buildings, instantly turning streets into raging rivers, causing vehicles to float, shops to flood, and traffic to be paralyzed. The murky water carries pathogens, posing a health threat; underground electrical facilities are submerged, leading to electric shock risks; and blocked emergency rescue channels delay crucial rescue time. Therefore, this application proposes a river flood control and drainage device to prevent river water from flowing back into the drainage pipe. Utility Model Content

[0003] The main purpose of this utility model is to provide a river flood control and drainage device that can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A river flood control and drainage device includes a flood control pipe fixedly sleeved on a drainage pipe. A first bracket is fixedly installed on the outer wall of the flood control pipe, a second bracket is fixedly installed on the upper end of the flood control pipe, and a third bracket is fixedly installed on the inner wall of the flood control pipe. An ultrasonic level sensor is fixedly installed on the first bracket. A water-blocking assembly is installed on the second and third brackets. The water-blocking assembly consists of a waterproof motor, a drive screw, an anti-detachment baffle, an internal threaded cylinder, and a sealing baffle. The drive screw is fixedly installed on the output shaft of the waterproof motor, the anti-detachment baffle is fixedly installed on the lower end of the drive screw, the internal threaded cylinder is installed on the drive screw, and the sealing baffle is fixedly sleeved on the internal threaded cylinder.

[0006] Preferably, a fitting hole is provided on one side wall of the flood control pipe, and the flood control pipe is fixedly fitted onto the drainage pipe through the fitting hole.

[0007] Preferably, the drainage pipe is installed on the riverbank.

[0008] Preferably, both the first and third supports are fixedly connected to the flood control pipe by bolts.

[0009] Preferably, the second bracket consists of a U-shaped frame and mounting plates. There are two mounting plates that are symmetrically fixedly installed at the lower end of the U-shaped frame. The mounting plates are also fixedly installed on the flood control pipe by bolts.

[0010] Preferably, the waterproof motor on the water-blocking assembly is fixedly installed on the upper end of the U-shaped frame on the second bracket, the output shaft of the waterproof motor passes downward through the upper side wall of the U-shaped frame, the drive screw is rotatably installed on the third bracket, the anti-detachment baffle is located below the third bracket, and the sealing baffle is in contact with the inner wall of the flood control pipe.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] By installing flood control pipes on drainage pipes, and mounting ultrasonic level sensors and water-blocking components on the flood control pipes via first, second, and third supports, the ultrasonic level sensors can monitor river water levels. The water-blocking components can seal the lower end of the flood control pipes when the river water level is too high, thereby preventing river water from flowing back into the drainage pipes and thus preventing river water from flowing back into the city and causing urban flooding. Moreover, when the water-blocking components seal the lower end of the flood control pipes, it does not affect the flow of water from the city into the river through the drainage pipes. At this time, water in the drainage pipes can still overflow into the river from the upper opening of the flood control pipes. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a structural schematic diagram of the flood control pipe, drainage pipe, second support, third support, and water-blocking component of this utility model;

[0015] Figure 3 This is a cross-sectional structural diagram of the flood control pipe, the first support, the second support, and the third support of this utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the flood control pipe, the first support, the second support, the third support, and the ultrasonic liquid level sensor of this utility model.

[0017] In the diagram: 1. Flood control pipe; 2. Drainage pipe; 3. River embankment; 4. First support; 5. Second support; 6. Third support; 7. Ultrasonic liquid level sensor; 8. Water-blocking assembly; 9. Fitting hole; 10. U-shaped frame; 11. Mounting clamp; 12. Waterproof motor; 13. Drive screw; 14. Anti-detachment baffle; 15. Internal threaded cylinder; 16. Sealing baffle. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a river flood control and drainage device includes a flood control pipe 1, which is fixedly sleeved on a drainage pipe 2. A first bracket 4 is fixedly installed on the outer wall of the flood control pipe 1, a second bracket 5 is fixedly installed on the upper end of the flood control pipe 1, and a third bracket 6 is fixedly installed on the inner wall of the flood control pipe 1. An ultrasonic level sensor 7 is fixedly installed on the first bracket 4. A water-blocking assembly 8 is installed on the second bracket 5 and the third bracket 6. The water-blocking assembly 8 consists of a waterproof motor 12, a drive screw 13, an anti-detachment baffle 14, an internal threaded cylinder 15, and a sealing baffle 16. The drive screw 13 is fixedly installed on the output shaft of the waterproof motor 12, the anti-detachment baffle 14 is fixedly installed on the lower end of the drive screw 13, the internal threaded cylinder 15 is installed on the drive screw 13, and the sealing baffle 16 is fixedly sleeved on the internal threaded cylinder 15. During operation... The waterproof motor 12 and the ultrasonic level sensor 7 need to be powered on. At the same time, the ultrasonic level sensor 7 is connected to the waterproof motor 12 using the control module, and the corresponding parameters are set. When the ultrasonic level sensor 7 detects that the water level in the river is close to the lower end of the flood control pipe 1, the control module starts the waterproof motor 12. The waterproof motor 12 drives the drive screw 13 to rotate, which in turn causes the internal threaded cylinder 15 and the sealing baffle 16 to move downwards. Finally, the internal threaded cylinder 15 and the sealing baffle 16 move to the bottom of the drainage pipe 2, thereby blocking the water in the river. When the ultrasonic level sensor 7 detects that the water level in the river is decreasing, the control module starts the waterproof motor 12, which drives the drive screw 13 to reverse, which in turn causes the internal threaded cylinder 15 and the sealing baffle 16 to move upwards to the top of the drainage pipe 2.

[0020] Therefore, by setting up a flood control pipe 1 on the drainage pipe 2, and installing an ultrasonic level sensor 7 and a water-blocking component 8 on the flood control pipe 1 via a first support 4, a second support 5, and a third support 6, the ultrasonic level sensor 7 can monitor the river water level, and the water-blocking component 8 can close the lower end of the flood control pipe 1 when the river water level is too high, thereby preventing river water from flowing back into the drainage pipe 2, and thus preventing river water from flowing back into the city through the drainage pipe 2 and causing urban flooding. Moreover, when the water-blocking component 8 closes the lower end of the flood control pipe 1, it does not affect the discharge of water in the city into the river through the drainage pipe 2. At this time, the water in the drainage pipe 2 can still overflow into the river from the upper opening of the flood control pipe 1.

[0021] Furthermore, a fitting hole 9 is provided on one side wall of the flood control pipe 1. The flood control pipe 1 is fixedly fitted onto the drainage pipe 2 through the fitting hole 9. The drainage pipe 2 is installed on the river embankment 3. The first bracket 4 and the third bracket 6 are both fixedly connected to the flood control pipe 1 by bolts. The second bracket 5 consists of a U-shaped frame 10 and a mounting clamp 11. There are two mounting clamps 11, which are symmetrically fixedly installed at the lower end of the U-shaped frame 10. The mounting clamps 11 are also fixedly installed on the flood control pipe 1 by bolts. The length of the flood control pipe 1 can be set according to the actual situation. At the same time, the upper end of the flood control pipe 1 should be higher than the river embankment 3 to prevent river water from entering the drainage pipe 2 through the upper opening of the flood control pipe 1.

[0022] Specifically, the waterproof motor 12 on the water-blocking assembly 8 is fixedly installed on the upper end of the U-shaped frame 10 on the second bracket 5. The output shaft of the waterproof motor 12 passes downward through the upper side wall of the U-shaped frame 10. The drive screw 13 is rotatably installed on the third bracket 6. The anti-detachment baffle 14 is located below the third bracket 6. The sealing baffle 16 contacts the inner wall of the flood control pipe 1. The sealing baffle 16 must have a good sealing effect without affecting the up and down movement of the sealing baffle 16. In addition, a waterproof motor 12 with good waterproof effect and an ultrasonic liquid level sensor 7 must be used to ensure the stability of the waterproof motor 12 and the ultrasonic liquid level sensor 7. When the waterproof motor 12 is working, its output shaft will drive the drive screw 13 to rotate. Since the internal threaded cylinder 15 is threadedly connected to the drive screw 13, and the anti-detachment baffle 14 contacts the inner wall of the flood control pipe 1, when the drive screw 13 rotates, the internal threaded cylinder 15 and the sealing baffle 16 will move up or down.

[0023] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A river flood control and drainage device, characterized in that: The system includes a flood control pipe (1), which is fixedly mounted on a drainage pipe (2). A first bracket (4) is fixedly installed on the outer wall of the flood control pipe (1), a second bracket (5) is fixedly installed at the upper end of the flood control pipe (1), and a third bracket (6) is fixedly installed on the inner wall of the flood control pipe (1). An ultrasonic liquid level sensor (7) is fixedly installed on the first bracket (4). A water-blocking assembly (8) is installed on the second bracket (5) and the third bracket (6). The water-blocking assembly (8) consists of a waterproof motor (12), a drive screw (13), an anti-detachment baffle (14), an internal threaded cylinder (15), and a sealing baffle (16). The drive screw (13) is fixedly mounted on the output shaft of the waterproof motor (12). The anti-detachment baffle (14) is fixedly mounted on the lower end of the drive screw (13). The internal threaded cylinder (15) is mounted on the drive screw (13). The sealing baffle (16) is fixedly mounted on the internal threaded cylinder (15).

2. The river flood control and drainage device according to claim 1, characterized in that: The flood control pipe (1) has a fitting hole (9) on one side wall, and the flood control pipe (1) is fixedly fitted onto the drainage pipe (2) through the fitting hole (9).

3. A river flood control and drainage device according to claim 2, characterized in that: The drainage pipe (2) is installed on the river embankment (3).

4. A river flood control and drainage device according to claim 3, characterized in that: The first bracket (4) and the third bracket (6) are both fixedly connected to the flood control pipe (1) by bolts.

5. A river flood control and drainage device according to claim 4, characterized in that: The second bracket (5) consists of a U-shaped frame (10) and mounting plates (11). There are two mounting plates (11) which are symmetrically fixedly installed at the lower end of the U-shaped frame (10). The mounting plates (11) are also fixedly installed on the flood control pipe (1) by bolts.

6. A river flood control and drainage device according to claim 5, characterized in that: The waterproof motor (12) on the water-blocking assembly (8) is fixedly installed on the upper end of the U-shaped frame (10) on the second bracket (5). The output shaft of the waterproof motor (12) passes downward through the upper side wall of the U-shaped frame (10). The drive screw (13) is rotatably installed on the third bracket (6). The anti-detachment baffle (14) is located below the third bracket (6). The sealing baffle (16) is in contact with the inner wall of the flood control pipe (1).