Sewer dredging vehicle

By using stainless steel suction pipes and an automated control system on the sewer cleaning truck, the problem of hoses easily bending and colliding with the manhole wall has been solved, achieving efficient and intelligent cleaning operations and reducing operating costs and the risk of equipment damage.

CN223621036UActive Publication Date: 2025-12-02CLW AUTOMOBILE GRP CO LTD
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Patent Information

Application Number
CN202423244882.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-27
Publication Date
2025-12-02
Estimated Expiration
2034-12-27

AI Technical Summary

Technical Problem

When existing sewer cleaning trucks operate in vertical shafts, the hoses are prone to bending and colliding with the shaft walls, affecting the efficiency of sewage suction. In addition, the hoses have a short service life and need to be replaced frequently, resulting in damage to the vacuum pump and high operating costs.

Method used

It uses a stainless steel suction pipe, equipped with a lateral movement and lifting mechanism and sensors. The control system enables automated unblocking, avoids collisions and extends service life. Combined with cameras and protective covers, it protects the equipment and reduces manual operation.

Benefits of technology

It has improved the efficiency and intelligence of dredging operations, reduced operating costs, extended equipment lifespan, and reduced the burden of manual labor.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223621036U_ABST
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Abstract

The utility model discloses a sewer dredging vehicle which comprises a chassis, a sewage tank and a vacuum pump connected with the sewage tank are mounted on the chassis, a transverse moving mechanism is further mounted on the chassis and connected with a fixing frame, and a first lifting mechanism capable of vertically moving up and down on the fixing frame is arranged in the fixing frame. The first lifting mechanism is connected with the fixing plate, limiting hoops of the same structure are fixedly installed at the upper end and the lower end of the fixing plate respectively, sewage suction pipes capable of moving up and down in the limiting hoops are arranged in the limiting hoops, and a second lifting mechanism is installed between the fixing plate and the sewage suction pipes and controls the sewage suction pipes to vertically move up and down in the limiting hoops. The sewage suction pipe is connected with the sewage tank through a hose. The sewage suction pipe can be controlled by the control system to go deep into the vertical shaft to conduct dredging operation, meanwhile, due to the fact that the inductor is arranged on the sewage suction pipe, the sewage suction pipe can be effectively prevented from colliding with the shaft wall, the operation process is simpler, and efficiency is higher.
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Description

Technical Field

[0001] This utility model relates to a dredging vehicle, specifically a sewer dredging vehicle. Background Technology

[0002] Existing sewer cleaning trucks generally use flexible hoses for sewer unclogging. When working in vertical shafts under manhole covers, the hose needs to be constantly shaken manually to prevent it from bending and causing blockages, which would affect the truck's suction efficiency. Because it's a flexible hose, it may collide with the shaft wall when lowered, causing the hose's inlet end to stick to the wall, also affecting suction efficiency. These issues can damage the vacuum pump, and because flexible hoses have a short lifespan, they need frequent replacement. Summary of the Invention

[0003] The present invention aims to address the aforementioned shortcomings by providing a sewer cleaning vehicle, comprising a chassis, a sewage tank and a vacuum pump connected to the sewage tank mounted on the chassis, a lateral moving mechanism mounted on the chassis, the lateral moving mechanism being connected to a fixed frame, a first lifting mechanism that can move vertically up and down within the fixed frame, the first lifting mechanism being connected to a fixed plate, and identical limiting clamps fixedly mounted at the upper and lower ends of the fixed plate, with a suction pipe that can move up and down within the limiting clamps, a second lifting mechanism being installed between the fixed plate and the suction pipe, the second lifting mechanism controlling the vertical up and down movement of the suction pipe within the limiting clamps, the suction pipe being connected to the sewage tank via a flexible hose, and the suction pipe being made of stainless steel.

[0004] To prevent the limiting clamp from causing wear on the outer surface of the suction pipe when it moves up and down, a wear-resistant nylon block is fixedly installed on the inner contact surface between the limiting clamp and the suction pipe.

[0005] To better control the lateral movement of the suction pipe on the chassis, the lateral movement mechanism includes a first slide rail that is fixedly mounted laterally on the chassis, a first slider that can slide laterally on the first slide rail, and the end of the first slider is connected to a fixed frame.

[0006] To prevent the suction pipe from obstructing vehicle traffic, the first lifting mechanism includes a first hydraulic cylinder and a second slider. One end of the first hydraulic cylinder is fixedly installed on the top of the fixed frame, and the other end is connected to the second slider. The fixed frame is equipped with a second slide rail, and the second slider can move vertically up and down on the second slide rail.

[0007] To facilitate the downward movement of the suction pipe, the second lifting mechanism includes a second hydraulic cylinder. One end of the second hydraulic cylinder is fixedly connected to a fixed plate, and the other end is connected to a hydraulic cylinder seat fixedly mounted on the suction pipe.

[0008] To prevent the suction pipe from colliding with the sewer manhole wall, a mounting bracket is fixedly installed on the bottom outer wall of the suction pipe, and a sensor is installed on the mounting bracket.

[0009] To better protect the sensor, a protective cover is also installed on top of the mounting bracket.

[0010] To make it easier to see the location of the suction pipe, a camera is also installed on the chassis, with the camera located on both sides of the mounting bracket.

[0011] In order to better control the suction pipe's movement towards or away from the chassis, and to better control the movement of the suction pipe, a telescopic mechanism is installed on the first slider, and the telescopic mechanism is connected to the fixed frame.

[0012] To better control the operation of the suction pipe, a control device is installed in the driver's cab of the chassis. The control device is connected to a camera, a telescopic mechanism, a lateral movement mechanism, a first lifting mechanism, a second lifting mechanism, and a sensor.

[0013] This utility model has the following beneficial effects:

[0014] This invention can control the suction pipe to penetrate deep into the vertical shaft for dredging operations through the control system. At the same time, because the suction pipe is equipped with a sensor, it can effectively avoid collision between the suction pipe and the shaft wall, making the operation process simpler and more efficient.

[0015] This invention allows workers to operate the system from inside the cab, improving the intelligence level of the sewage suction operation while reducing the number of operators and helping to lower operating costs. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 1 .

[0018] Figure 2 This is a schematic diagram of the structure of this utility model. Figure 2 .

[0019] Figure 3 This is a structural diagram of the suction pipe and the mounting bracket.

[0020] In the diagram: chassis 1, sewage tank 2, hose 3, cylinder seat 4, second cylinder 5, fixing frame 6, first slider 7, first slide rail 8, limit clamp 9, suction pipe 10, fixing plate 11, camera 12, first cylinder 13, second slider 14, mounting bracket 15, protective cover 16. Detailed Implementation

[0021] The following drawings will disclose several embodiments of this utility model. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these physical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0022] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terminology and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0023] like Figures 1 to 3 As shown, a sewer cleaning vehicle comprises a chassis 1, a sewage tank 2 and a vacuum pump connected to the sewage tank 2 mounted on the chassis 1, a lateral moving mechanism mounted on the chassis 1, the lateral moving mechanism being connected to a fixed frame 6, a first lifting mechanism that can move vertically up and down within the fixed frame 6, the first lifting mechanism being connected to a fixed plate 11, and identical limiting clamps 9 fixedly mounted at the upper and lower ends of the fixed plate 11, a suction pipe 10 that can move up and down within the limiting clamps 9, a second lifting mechanism being installed between the fixed plate 11 and the suction pipe 10, the second lifting mechanism controlling the vertical up and down movement of the suction pipe 10 within the limiting clamps 9, the suction pipe 10 being connected to the sewage tank 10 via a flexible hose 3, and the suction pipe 10 being made of stainless steel.

[0024] Using the above technical solution, the lateral movement mechanism can control the lateral movement of the suction pipe 10, and the first lifting mechanism and the second lifting mechanism can control the upward and downward movement of the suction pipe 10. This structure is conducive to controlling the movement of the suction pipe, eliminating the need for manual support of the suction pipe during operation and reducing the labor burden on workers.

[0025] Furthermore, a wear-resistant nylon block is fixedly installed on the inner contact surface of the limiting clamp 9 and the suction pipe 10.

[0026] By adopting the above technical solution, when the wear-resistant nylon block moves up and down the suction pipe 10, it can effectively reduce the wear caused by the limiting clamp 9 on the outer surface of the suction pipe 10, thereby extending the service life of the limiting clamp 9 and the suction pipe 10.

[0027] Furthermore, the lateral movement mechanism includes a first slide rail 8 that is laterally fixedly mounted on the chassis 1, and a first slider 7 that can slide laterally on the first slide rail 8, the end of the first slider 7 being connected to the fixing frame 6.

[0028] By adopting the above technical solution, the lateral movement of the suction pipe 10 can be better controlled.

[0029] Furthermore, the first lifting mechanism includes a first hydraulic cylinder 13 and a second slider 14. One end of the first hydraulic cylinder 13 is fixedly installed on the top of the fixed frame 6, and the other end is connected to the second slider 14. The fixed frame 6 is equipped with a second slide rail, and the second slider 14 can move vertically up and down on the second slide rail.

[0030] By adopting the above technical solution, the distance between the bottom of the suction pipe 10 and the ground can be better controlled, thus better ensuring the passage performance of the vehicle.

[0031] Furthermore, the second lifting mechanism includes a second hydraulic cylinder 5, one end of which is fixedly connected to the fixed plate 11, and the other end of which is connected to the hydraulic cylinder seat 4 fixedly installed on the suction pipe 10.

[0032] By adopting the above technical solution, it can be ensured that the suction pipe 10 can be better inserted into the vertical shaft.

[0033] Furthermore, a mounting bracket 15 is fixedly installed on the bottom outer wall of the suction pipe 10, and a sensor is installed on the mounting bracket 15.

[0034] By adopting the above technical solution, it is possible to effectively prevent the suction pipe 10 from colliding with the wall of the vertical shaft.

[0035] Furthermore, a protective cover 16 is also installed above the mounting bracket 15.

[0036] By adopting the above technical solution, the sensor can be protected to prevent foreign objects in the shaft from damaging the sensor.

[0037] Furthermore, a camera 12 is also installed on the chassis 1, and the camera 12 is located on both sides of the fixing frame 6.

[0038] By adopting the above technical solution, it is easy to monitor the movement of the suction pipe 10 in real time and make timely adjustments.

[0039] Furthermore, a telescopic mechanism is installed on the first slider 7, and the telescopic mechanism is connected to the fixed frame 6.

[0040] By adopting the above technical solution, the operating range of the suction pipe 10 can be effectively expanded, enabling it to operate better in the vertical shaft.

[0041] Furthermore, a control device is installed in the cab of the chassis 1, and the control device is connected to a camera, a telescopic mechanism, a lateral movement mechanism, a first lifting mechanism, a second lifting mechanism, and a sensor.

[0042] By adopting the above technical solution, workers can control the suction pipe from the cab, making the work simpler and reducing the workload of workers.

[0043] During operation, the vehicle approaches the shaft. Based on the distance between the vehicle and the shaft, the telescopic mechanism extends. The movement of the suction pipe 10 is monitored in real-time via camera 12, ensuring the pipe is directly above the shaft. Then, the first lifting mechanism descends, and the second lifting mechanism descends as needed. The vacuum pump is then activated, and the operation begins, sucking sewage or sludge from the shaft into the sewage tank 2 through the suction pipe 10. During operation, the lateral movement mechanism, telescopic mechanism, and second lifting mechanism are controlled as needed to ensure the suction pipe 10 covers the space inside the shaft.

[0044] After the operation is completed, the vacuum pump is turned off, the second lifting mechanism moves upward to retract the suction pipe 10, and at the same time the first lifting mechanism moves upward to raise the suction pipe 10 off the ground to ensure the vehicle's passability.

[0045] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A sewer cleaning vehicle, comprising a chassis (1), a sewage tank (2) mounted on the chassis (1) and a vacuum pump connected to the sewage tank (2), characterized in that: A transverse moving mechanism is also installed on the chassis (1). The transverse moving mechanism is connected to the fixed frame (6). The fixed frame (6) is provided with a first lifting mechanism that can move vertically up and down on it. The first lifting mechanism is connected to the fixed plate (11). The upper and lower ends of the fixed plate (11) are respectively fixedly installed with limiting clamps (9) of the same structure. The limiting clamps (9) are provided with a suction pipe (10) that can move up and down inside it. A second lifting mechanism is installed between the fixed plate (11) and the suction pipe (10). The second lifting mechanism controls the suction pipe (10) to move vertically up and down inside the limiting clamps (9). The suction pipe (10) is connected to the sewage tank (2) through a hose (3).

2. The sewer cleaning vehicle according to claim 1, characterized in that: Wear-resistant nylon blocks are fixedly installed on the inner contact surface between the limiting clamp (9) and the suction pipe (10).

3. A sewer cleaning vehicle according to claim 2, characterized in that: The lateral movement mechanism includes a first slide rail (8) that is laterally fixedly mounted on the chassis (1), and a first slider (7) that can slide laterally on the first slide rail (8). The end of the first slider (7) is connected to the fixing frame (6).

4. A sewer cleaning vehicle according to claim 3, characterized in that: The first lifting mechanism includes a first hydraulic cylinder (13) and a second slider (14). One end of the first hydraulic cylinder (13) is fixedly installed on the top of the fixed frame (6), and the other end is connected to the second slider (14). The fixed frame (6) is equipped with a second slide rail, and the second slider (14) can move vertically up and down on the second slide rail.

5. A sewer cleaning vehicle according to claim 4, characterized in that: The second lifting mechanism includes a second hydraulic cylinder (5), one end of which is fixedly connected to a fixed plate (11), and the other end of which is connected to a hydraulic cylinder seat (4) fixedly installed on a suction pipe (10).

6. A sewer cleaning vehicle according to claim 5, characterized in that: A mounting bracket (15) is fixedly installed on the bottom outer wall of the suction pipe (10), and a sensor is installed on the mounting bracket (15).

7. A sewer cleaning vehicle according to claim 6, characterized in that: A protective cover (16) is also installed above the mounting bracket (15).

8. A sewer cleaning vehicle according to claim 7, characterized in that: A camera (12) is also installed on the chassis (1), and the camera (12) is located on both sides of the fixing frame (6).

9. A sewer cleaning vehicle according to claim 8, characterized in that: The first slider (7) is equipped with a telescopic mechanism, which is connected to the fixed frame (6).

10. A sewer cleaning vehicle according to claim 9, characterized in that: The chassis (1) is equipped with a control device in the driver's cab. The control device is connected to a camera, a telescopic mechanism, a lateral movement mechanism, a first lifting mechanism, a second lifting mechanism, and a sensor.