A pipeline dredging device for hydraulic engineering

By using a hexagonal support frame, connecting rod drive wheel, and milling cutter tooth structure, combined with high-pressure water flow, the pipeline dredging device achieves autonomous movement and efficient dredging, solving the problem of insufficient propulsion force in existing devices and improving dredging efficiency and accuracy.

CN224591566UActive Publication Date: 2026-08-04SINOHYDRO BUREAU 11 CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SINOHYDRO BUREAU 11 CO LTD
Filing Date
2025-07-22
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Existing pipeline dredging devices lack adjustment mechanisms, making it difficult for rollers to fit against the inner wall and resulting in insufficient friction. This leads to insufficient propulsion, making it difficult to clear severe blockages and affecting dredging efficiency and quality.

Method used

It adopts a hexagonal support frame, a linkage drive wheel structure, and a milling cutter head tooth and thread structure, combined with high-pressure water flow, to achieve autonomous movement and efficient dredging. The milling cutter head breaks up the silt and is equipped with a camera for real-time monitoring.

Benefits of technology

It improves the automation level and working efficiency of the dredging device, adapts to different pipe diameters, enhances the dredging effect, and improves the accuracy and safety of dredging operations.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224591566U_ABST
    Figure CN224591566U_ABST
Patent Text Reader

Abstract

The utility model discloses a pipeline dredging device for water conservancy project relates to pipeline dredging device technical field, including bearing frame, propulsion plate, water inlet pipe, bolt and camera, bearing frame side is provided with propulsion mechanism, the propulsion mechanism includes propulsion plate, drive wheel, first connecting rod, second connecting rod, guide rod and spring, the spring is the propulsion plate and provides power, pushes first connecting rod, and turns over and develops under the restriction of second connecting rod, and the wheel hub motor of drive wheel drive provides the advancing power, and the unique structure design, such as hexagon bearing frame, connecting rod drive wheel structure, the tooth of milling cutter disc and the thread structure etc.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the technical field of pipeline dredging devices, specifically a pipeline dredging device for water conservancy projects. Background Technology

[0002] Pipeline dredging equipment is a specialized device used to remove silt and debris from various pipelines. It is widely used in water conservancy projects, sewage treatment, and municipal drainage, playing a crucial role in ensuring unobstructed pipeline flow, improving pipeline transport capacity, and maintaining the normal operation of related systems. Its working principle primarily utilizes mechanical, hydraulic, or other power sources to break, flush, pump, or scrape away silt and debris within the pipeline to achieve the purpose of removing the silt. However, existing pipeline dredging equipment has some shortcomings, such as:

[0003] The municipal pipeline dredging device described in application number CN202420881763.0 has significant mobility defects in practical applications. The device uses rollers without an adjustment mechanism as moving parts. This design exposes numerous problems in complex pipeline environments. Due to long-term use, the inner wall of municipal pipelines experiences varying degrees of wear and deformation, or uneven surfaces due to uneven deposition. The fixed rollers of this dredging device cannot adaptively adjust to the actual conditions of the pipeline inner wall, making it difficult to maintain a tight fit. As a result, the friction between the rollers and the pipeline inner wall is significantly reduced, and the dredging device is prone to slippage during advancement, leading to severely insufficient propulsion. Faced with severely clogged pipelines, this lack of power makes it difficult for the dredging device to penetrate deep into the pipeline and effectively remove the blockage, greatly affecting the efficiency and quality of municipal pipeline dredging work. Utility Model Content

[0004] The purpose of this utility model is to provide a pipeline dredging device for water conservancy projects, in order to solve the problems mentioned in the background art, where existing equipment on the market lacks an adjustment mechanism and uses rollers as moving parts. In actual use, the rollers are difficult to fit against the inner wall, resulting in insufficient friction and propulsion, making it difficult to clean serious blockages and affecting dredging efficiency and quality.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pipeline dredging device for water conservancy projects, comprising a support frame, a push plate, a water inlet pipe, a pin, and a camera;

[0006] The support frame is provided with a propulsion mechanism on its side. The propulsion mechanism includes a propulsion plate, a drive wheel, a first link, a second link, a guide rod, and a spring. The spring provides power to the propulsion plate, pushes the first link, and flips and unfolds under the restriction of the second link. The drive wheel is driven by a hub motor to provide propulsion power.

[0007] A sludge removal mechanism is provided on the side of the support frame. The sludge removal mechanism includes a milling cutter disc, a water inlet pipe, a guide groove, a first water outlet, a second water outlet, and teeth. The water inlet pipe is connected to a high-pressure water supply pipeline. The high-pressure water flows through the first and second water outlets, using the counter-thrust to achieve forward movement and rotation. The teeth and thread structure break up the blockage to achieve the re-clearing function.

[0008] As a preferred technical solution of this utility model, the support frame is a hexagonal prism structure, and a push plate is slidably connected to the left side of the support frame. The push plate is composed of two parallel hexagonal flat plates, and a U-shaped connecting rod is on the left side of the push plate.

[0009] Using the above technical solution, the support frame is a hexagonal column structure, which has good stability and space utilization. A push plate is slidably connected to the left side of the support frame. The push plate consists of two parallel hexagonal plates, with a U-shaped connecting rod on the left side for easy engagement with a pin, enabling stable sliding of the push plate.

[0010] As a preferred technical solution of this utility model, a pair of circular grooves are opened on the left side of the support frame for the passage of pins, and a water inlet pipe is slidably connected to the left side of the support frame. The water inlet pipe has an internal thread structure, and the pin passes through the push plate and is slidably connected to the limiting strip. The limiting strip is vertically fixed to the side of the support frame.

[0011] Using the above technical solution, a pair of circular grooves are opened on the left side of the support frame for the passage of a pin. A water inlet pipe is slidably connected to the left side of the support frame. The water inlet pipe has an internal thread structure for easy connection to an external high-pressure pipeline. The pin passes through the push plate and is slidably connected to the limiting strip. The limiting strip is vertically fixed to the side of the support frame to restrict the movement range of the pin and ensure the normal sliding of the push plate.

[0012] As a preferred technical solution of this utility model, six square holes are evenly opened on the surface of the support frame. The outer side of the support frame is rotatably connected to the first connecting rod. There are three evenly distributed first connecting rods. The outer side of the first connecting rod is rotatably connected to the drive wheel. The drive wheel is driven by a hub motor and is a waterproof motor. The side of the first connecting rod is rotatably connected to one end of the second connecting rod, and the other end of the second connecting rod is rotatably connected to the support frame.

[0013] Using the above technical solution, six square holes are evenly spaced on the surface of the support frame, which helps reduce the weight of the device without affecting its structural strength. The outer side of the support frame is rotatably connected to a first connecting rod, of which three are evenly distributed, and the outer side of the first connecting rod is rotatably connected to a drive wheel. The side of the first connecting rod is rotatably connected to one end of a second connecting rod, and the other end of the second connecting rod is rotatably connected to the support frame. This connecting rod structure design makes the deployment and retraction of the drive wheel more flexible, adapting to pipes of different diameters.

[0014] As a preferred technical solution of this utility model, the push plate is slidably connected to the guide rod, the right side of the guide rod is fitted with a spring, the spring, and the guide rod has three through the push plate, and the two ends of the guide rod are fixedly connected to the inner wall of the support frame;

[0015] Using the above technical solution, the propulsion plate is slidably connected to the guide rods, and springs are fitted on the right side of the guide rods. There are three guide rods that penetrate the propulsion plate, and both ends of the guide rods are fixedly connected to the inner wall of the support frame. The cooperation between the guide rods and the springs ensures the stability and smoothness of the propulsion plate during sliding, while the elastic force of the springs provides continuous propulsion power to the propulsion plate.

[0016] As a preferred technical solution of this utility model, the water inlet pipe is fixedly connected to the support frame, and the left side of the water inlet pipe has an internal thread structure and is connected to an external high-pressure pipe. The camera is fixedly connected to the left surface of the support frame.

[0017] Using the above technical solution, the inlet pipe is fixedly connected to the support frame, and the left side of the inlet pipe has an internal thread structure that connects to an external high-pressure pipeline, ensuring a stable input of high-pressure water. A camera is fixedly connected to the left surface of the support frame, allowing operators to observe the internal condition of the pipeline in real time and adjust the dredging operation accordingly.

[0018] As a preferred technical solution of this utility model, the water inlet pipe is rotatably connected to the milling cutter disc, and six observation holes are evenly opened on the surface of the milling cutter disc. The side surface of the observation holes is threaded with teeth, and the teeth are made of high-hardness alloy material. The center position of the milling cutter disc has a tapered thread structure, and three guide grooves are opened inside the milling cutter disc. The guide grooves connect the first water outlet and the second water outlet, and the second water outlet and the first water outlet form a triangular structure.

[0019] Using the above technical solution, the water inlet pipe is rotatably connected to the milling cutter disc. Six observation holes are evenly spaced on the surface of the milling cutter disc, and threaded teeth are fixed to the side surfaces of the observation holes. These teeth are made of high-hardness alloy material to improve the ability to break up blockages. The center of the milling cutter disc has a tapered thread structure, and three guide grooves are opened inside the milling cutter disc. The guide grooves connect the first water outlet and the second water outlet. The second water outlet and the first water outlet form a triangular structure, allowing the high-pressure water flow to act evenly on the milling cutter disc, enhancing the counter-thrust and improving the dredging efficiency.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1. The propulsion mechanism and the dredging mechanism work together to enable the device to move autonomously and dredge efficiently in the pipeline, thereby improving the automation level and work efficiency of the dredging operation.

[0022] 2. Unique structural design, such as hexagonal support frame, linkage drive wheel structure, and tooth and thread structure of milling cutter disc, enables the device to adapt to pipes of different diameters and has a good dredging effect, effectively breaking up various types of blockages.

[0023] 3. The camera setup allows operators to observe the inside of the pipeline in real time, adjust the dredging operation in a timely manner, avoid unnecessary damage to the pipeline, and improve the accuracy and safety of the dredging operation. Attached Figure Description

[0024] Figure 1 This is a side view of the structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the tooth and first water outlet structure of this utility model;

[0026] Figure 3 This is a schematic diagram of the guide rod and spring structure of this utility model;

[0027] Figure 4 This is a schematic diagram of the milling cutter disc and observation hole structure of this utility model;

[0028] Figure 5 This is a schematic diagram of the water inlet pipe and milling cutter disc structure of this utility model;

[0029] Figure 6 This is a schematic diagram of the drive wheel and the first connecting rod structure of this utility model;

[0030] Figure 7 This is a schematic diagram of the support frame and limiting strip structure of this utility model.

[0031] In the diagram: 1. Support frame; 2. Propulsion plate; 3. Water inlet pipe; 4. Pin; 5. Limiting strip; 6. Drive wheel; 7. First connecting rod; 8. Milling cutter disc; 9. Second connecting rod; 10. Observation hole; 11. Tooth; 12. First water outlet; 13. Guide rod; 14. Spring; 15. Second water outlet; 16. Flow guide channel; 17. Camera. Detailed Implementation

[0032] 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.

[0033] Please see Figures 1-7The present invention provides a pipeline dredging device for water conservancy projects, comprising a support frame 1, a push plate 2, a water inlet pipe 3, a pin 4, a limiting strip 5, a drive wheel 6, a first connecting rod 7, a milling cutter disc 8, a second connecting rod 9, an observation hole 10, teeth 11, a first water outlet 12, a guide rod 13, a spring 14, a second water outlet 15, a guide channel 16, and a camera 17.

[0034] The support frame 1 is equipped with a propulsion mechanism on its side, which mainly consists of a propulsion plate 2, a drive wheel 6, a first connecting rod 7, a second connecting rod 9, a guide rod 13, and a spring 14. The spring 14 plays a key role, providing power to the propulsion plate 2 to push the first connecting rod 7, and under the constraint of the second connecting rod 9, it realizes the flipping and unfolding of the first connecting rod 7. The drive wheel 6 is equipped with a hub motor, which provides power for the entire device to move in the pipeline after starting.

[0035] Meanwhile, a sludge removal mechanism is also provided on the side of the support frame 1, including a milling cutter disc 8, a water inlet pipe 3, a guide channel 16, a first water outlet 12, a second water outlet 15, and teeth 11. The water inlet pipe 3 is connected to a high-pressure water supply pipeline. High-pressure water flows through the first water outlet 12 and the second water outlet 15 and sprays out. The generated thrust can not only make the milling cutter disc 8 move forward, but also make it rotate. The teeth 11 on the milling cutter disc 8 cooperate with its own thread structure to effectively break up the blockage in the pipe and realize the restoration of the pipe.

[0036] The support frame 1 is designed as a hexagonal column structure. This shape has good stability and can remain stable when working in the pipeline. It also has a high space utilization rate. The left side of the support frame 1 is connected to the push plate 2 by a sliding connection. The push plate 2 is composed of two parallel hexagonal plates. Its left side is designed with a U-shaped connecting rod. This structural design allows the push plate 2 to better cooperate with the pin 4, ensuring stability and reliability during sliding and avoiding deviation or jamming.

[0037] A pair of circular grooves are provided on the left side of the support frame 1 to allow the pin 4 to pass through smoothly. The water inlet pipe 3 is also located on the left side of the support frame 1 and adopts an internal thread structure to facilitate connection with external high-pressure pipes and ensure stable input of high-pressure water flow. The pin 4 passes through the push plate 2 and is slidably connected to the limiting strip 5 that is vertically fixed on the side of the support frame 1. The existence of the limiting strip 5 restricts the movement range of the pin 4, thereby ensuring that the push plate 2 can only slide along the predetermined trajectory and maintain the normal operation of the entire push mechanism.

[0038] The surface of the support frame 1 has six square holes evenly distributed. These holes reduce the overall weight of the device without affecting the structural strength of the support frame 1, making operation more convenient. The outer side of the support frame 1 is rotatably connected to three evenly distributed first connecting rods 7. Each first connecting rod 7 is rotatably connected to a drive wheel 6. The drive wheel 6 is driven by a waterproof hub motor, which can adapt to the humid environment inside the pipe. The first connecting rod 7 is rotatably connected to one end of the second connecting rod 9, and the other end of the second connecting rod 9 is connected to the support frame 1. This connecting rod structure design is very ingenious, which allows the drive wheel 6 to be flexibly extended and retracted to adapt to pipes of different diameters.

[0039] The propulsion plate 2 is slidably connected to three guide rods 13. Each guide rod 13 has a spring 14 mounted on its right side. The two ends of the guide rods 13 are fixed to the inner wall of the support frame 1. The guide rods 13 and springs 14 work together. The guide rods 13 ensure that the propulsion plate 2 will not wobble or deviate during the sliding process, ensuring the stability of the operation. The springs 14 continuously provide propulsion power to the propulsion plate 2, enabling the propulsion plate 2 to stably push the first connecting rod 7 and maintain the movement of the device.

[0040] The inlet pipe 3 is fixedly connected to the support frame 1. Its left side internal thread structure is tightly connected to the external high-pressure pipeline to ensure that the high-pressure water flow is stably delivered to the dredging mechanism. On the left side surface of the support frame 1, a camera 17 is fixedly installed. The operator can observe the inside of the pipeline in real time through it and adjust the parameters of the dredging operation in a timely manner according to the actual situation to ensure that the dredging work is accurate and efficient.

[0041] The water inlet pipe 3 is rotatably connected to the milling cutter disc 8. Six observation holes 10 are evenly distributed on the surface of the milling cutter disc 8. High-hardness alloy teeth 11 are fixed to the side of the observation holes 10 by threads. These teeth 11 have a strong crushing ability. The center of the milling cutter disc 8 is designed with a tapered thread structure, and three guide grooves 16 are opened inside. The guide grooves 16 connect the first water outlet 12 and the second water outlet 15. The second water outlet 15 and the first water outlet 12 form a triangular structure. This design allows the high-pressure water flow to act evenly on the milling cutter disc 8, enhances the counter-thrust, and thus greatly improves the dredging efficiency.

[0042] Working principle: When using a pipeline dredging device for water conservancy projects, first move the device into the pipeline to be dredged, pull the pin 4 out from the circular groove on the left side of the support frame 1, the compression spring 14 unfolds, pushes the push plate 2, and causes the first connecting rod 7 to flip and unfold under the restriction of the second connecting rod 9. The drive wheel 6 approaches and adheres to the inner wall of the pipeline, and the hub motor of the drive wheel 6 is started. The drive wheel 6 rotates, driving the device to move forward in the pipeline.

[0043] Meanwhile, the inlet pipe 3 is connected to an external high-pressure water supply line. The high-pressure water flows through the inlet pipe 3 into the guide groove 16 inside the milling cutter disc 8, and then sprays out from the first water outlet 12 and the second water outlet 15. The counter-thrust generated by the high-pressure water flow causes the milling cutter disc 8 to rotate and move forward. The teeth 11 on the surface of the milling cutter disc 8 and the conical thread structure in the center come into contact with the silt and break it up. The camera 17 captures the situation inside the pipe in real time and transmits the image to the external monitoring equipment. Based on the image information, the operator adjusts the speed of the drive wheel 6 and the water pressure of the inlet pipe 3 to ensure the smooth progress of the dredging operation.

[0044] After the device completes the dredging operation of a section of the pipeline, manually adjust the compression spring 14 of the push plate 2 to pass the pin 4 through the limit bar 5, so that the first link 7 retracts into the second link 9, retracts the drive wheel 6, and then removes the device from the pipeline.

[0045] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0046] 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 pipeline dredging device for hydraulic engineering, comprising a bearing frame (1); characterized in that: The support frame (1) is provided with a propulsion mechanism on its side. The propulsion mechanism includes a propulsion plate (2), a drive wheel (6), a first connecting rod (7), a second connecting rod (9), a guide rod (13), and a spring (14). The spring (14) provides power to the propulsion plate (2), pushes the first connecting rod (7), and flips and unfolds under the restriction of the second connecting rod (9). The drive wheel (6) is driven by the hub motor to provide the propulsion power. The support frame (1) is provided with a sludge removal mechanism on its side. The sludge removal mechanism includes a milling cutter disc (8), a water inlet pipe (3), a guide groove (16), a first water outlet (12), a second water outlet (15), and teeth (11). The water inlet pipe (3) is connected to a high-pressure water supply pipeline. The high-pressure water flows through the first water outlet (12) and the second water outlet (15), using the counter-thrust to achieve forward movement and rotation. The teeth (11) and the thread structure crush the sludge to achieve the re-dredging function.

2. The pipeline dredging device for hydraulic engineering according to claim 1, characterized in that, The support frame (1) is a hexagonal column structure, and the support frame (1) is slidably connected to the push plate (2) on the left side. The push plate (2) is composed of two parallel hexagonal plates, and the push plate (2) has a U-shaped connecting rod on the left side.

3. The pipeline dredging device for hydraulic engineering according to claim 1, characterized in that, The support frame (1) has a pair of circular grooves on the left side for the pin (4) to pass through. The support frame (1) is slidably connected to the water inlet pipe (3), which has an internal thread structure. The pin (4) passes through the push plate (2) and is slidably connected to the limiting strip (5). The limiting strip (5) is vertically fixed on the side of the support frame (1).

4. The pipeline dredging device for hydraulic engineering according to claim 1, characterized in that, The support frame (1) has six square holes evenly opened on its surface. The support frame (1) is rotatably connected to the first connecting rod (7) on its outer side. There are three first connecting rods (7) evenly distributed. The first connecting rod (7) is rotatably connected to the drive wheel (6) on its outer side. The drive wheel (6) is driven by a hub motor and is a waterproof motor. The side of the first connecting rod (7) is rotatably connected to one end of the second connecting rod (9). The other end of the second connecting rod (9) is rotatably connected to the support frame (1).

5. The pipeline dredging device for hydraulic engineering according to claim 1, characterized in that, The push plate (2) is slidably connected to the guide rod (13), and a spring (14) is fitted on the right side of the guide rod (13). The spring (14) and the guide rod (13) have three through the push plate (2). The two ends of the guide rod (13) are fixedly connected to the inner wall of the support frame (1).

6. The pipeline dredging device for hydraulic engineering according to claim 1, characterized in that, The water inlet pipe (3) is fixedly connected to the support frame (1), and the left side of the water inlet pipe (3) has an internal thread structure connected to an external high-pressure pipe. The camera (17) is fixedly connected to the left side surface of the support frame (1).

7. The pipeline dredging device for hydraulic engineering according to claim 1, characterized in that, The water inlet pipe (3) is rotatably connected to the milling cutter disc (8), and six observation holes (10) are evenly opened on the surface of the milling cutter disc (8). The observation holes (10) have threaded teeth (11) on their side surfaces, and the teeth (11) are made of high-hardness alloy material. The center of the milling cutter disc (8) has a tapered thread structure, and three guide grooves (16) are opened inside the milling cutter disc (8). The guide grooves (16) connect the first water outlet (12) and the second water outlet (15). The second water outlet (15) and the first water outlet (12) form a triangular structure.