Dredging device for water conservancy pipeline

By designing a dredging device with a hollow base and an adjustable rotating arm, the problem of existing equipment being unable to adapt to pipes of different shapes and sizes has been solved, achieving efficient and uniform pipe cleaning and extending the service life of the equipment.

CN224259574UActive Publication Date: 2026-05-19SOUTH TO NORTH WATER SHANDONG LINE CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SOUTH TO NORTH WATER SHANDONG LINE CORP
Filing Date
2025-03-04
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing pipe cleaning equipment is difficult to adapt to pipes of different shapes and sizes, resulting in uneven cleaning effects and poor mobility, leading to low cleaning efficiency, rapid equipment wear, and inability to effectively remove deposits from pipes.

Method used

A dredging device for water conservancy pipelines was designed, including a base, a connecting shaft, a rotating arm, and a scraper. The connecting shaft is driven by a motor to rotate, which in turn drives the rotating arm and the scraper to clean the inner wall of the pipeline. The base has a hollow structure to reduce weight, the rotating arm has an adjustable angle, the scraper has a curved edge and a covering layer, and is equipped with a moving mechanism to adapt to different pipeline shapes.

Benefits of technology

It improves cleaning efficiency and adaptability, reduces friction and wear, extends equipment life, and ensures thorough cleaning of the inner wall of the pipeline, making it particularly suitable for long-distance and complex pipeline environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a desilting device for a water conservancy pipeline, which belongs to the field of pipeline desilting and comprises a base, a connecting shaft, a rotating arm and a scraper. A hollow cavity is formed in the base, a motor is arranged in the hollow cavity, one end of the connecting shaft is connected with the power output end of the motor, and the rotating arm is installed on the connecting shaft through a rotating shaft. The scraping plate is mounted on the rotating arm through a rotating shaft and is used for cleaning the inner wall of the pipeline; a hollow cavity is formed in the base and is matched with a motor for driving, a connecting shaft drives a rotating arm to rotate through power output of the motor so as to drive a scraping plate to perform cleaning work, the scraping plate is installed through the rotating arm, it is ensured that the scraping plate makes contact with the inner wall of a pipeline, sediments in the pipeline are effectively removed through rotating motion, and the device adapts to different pipeline diameters and shapes; the cleaning effect is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of pipeline dredging, specifically a dredging device for water conservancy pipelines. Background Technology

[0002] With the acceleration of urbanization and the continuous expansion of infrastructure construction, the construction and maintenance of urban drainage pipes, irrigation pipes, and various water conservancy pipelines have become increasingly important. Over long-term use, pipes easily accumulate dirt, sediment, silt, and other debris, leading to blockages, reduced flow, and even affecting the normal operation of urban drainage and irrigation systems. Therefore, timely and efficient cleaning of sediment and impurities inside pipes is crucial to ensuring their normal operation and extending their service life.

[0003] Currently, traditional pipe cleaning methods mostly rely on manual operation or the use of some simple mechanical equipment. However, these methods often have the following problems: manual cleaning is inefficient, costly, and labor-intensive; traditional mechanical equipment cannot fully adapt to the complex shape of the pipe's inner wall during pipe cleaning, resulting in incomplete cleaning; at the same time, due to the large weight of the equipment, it is inconvenient to move it inside the pipe, especially during the cleaning of long-distance or curved pipes, which can easily lead to blind spots and make it difficult to achieve the desired cleaning effect.

[0004] With continuous technological advancements, automated and mechanized dredging equipment has emerged in recent years, addressing some shortcomings of traditional cleaning methods. However, existing automated dredging equipment still faces several challenges. For instance, it cannot effectively adapt to the cleaning needs of pipes with varying diameters, shapes, and bends, and its poor mobility often necessitates additional support to ensure smooth operation. Furthermore, most cleaning components (such as scrapers) in existing equipment are fixed structures, making it difficult to maintain close contact with the curved shape of the pipe's inner wall, resulting in incomplete cleaning. Additionally, scrapers are susceptible to significant friction during cleaning, leading to rapid wear and reduced equipment lifespan.

[0005] Therefore, how to design a dredging device that can effectively adapt to pipes of different shapes, has high cleaning efficiency, and can move flexibly has become an urgent problem to be solved in the current technical field. Utility Model Content

[0006] To address the problem that existing pipeline cleaning equipment is difficult to adapt to pipelines of different shapes and sizes and has uneven cleaning results, this utility model provides a dredging device for water conservancy pipelines.

[0007] This utility model is achieved through the following technical solution: a dredging device for water conservancy pipelines, comprising a base, a connecting shaft, a rotating arm, and a scraper; the base has a hollow cavity inside, and a motor is installed inside the hollow cavity; one end of the connecting shaft is connected to the power output end of the motor; the rotating arm is mounted on the connecting shaft via a rotating shaft; the scraper is mounted on the rotating arm via the rotating shaft and cleans the inner wall of the pipeline; the motor drives the connecting shaft to rotate, causing multiple rotating arms and scrapers to work together to automatically clean the inner wall of the pipeline. The hollow cavity design of the base reduces the weight of the device, improves its mobility within the pipeline, and is particularly suitable for cleaning long-distance pipelines, reducing energy consumption and improving work efficiency.

[0008] A further improvement of this utility model is that multiple rotating arms are provided, and the multiple rotating arms are installed on the connecting shaft at equal intervals; the multiple rotating arms are evenly distributed on the connecting shaft, which can perform multi-point cleaning at the same time, improve cleaning efficiency, ensure the comprehensive cleaning of the inner wall of the pipe, and avoid the limitation of traditional equipment that can only concentrate on a single cleaning point.

[0009] A further improvement of this utility model is that the edge of the scraper is curved and has a coating layer; the curved edge of the scraper can closely fit the inner wall of the pipe to ensure the maximum contact area during the cleaning process, and the coating layer reduces friction and wear, extends the service life of the scraper, and can effectively reduce damage to the inner wall of the pipe and protect the surface of the pipe.

[0010] A further improvement of this utility model is that it also includes a fixing sleeve, which is installed on the connecting shaft. The fixing sleeve is connected to the rotating arm through a connecting rod and adjusts the opening angle of the rotating arm relative to the connecting shaft. The connection between the fixing sleeve and the rotating arm makes the opening angle of the rotating arm adjustable, adapting to pipes of different diameters and shapes, ensuring that the scraper always maintains optimal contact with the inner wall of the pipe, thereby improving the cleaning effect and adaptability, especially in complex pipe environments.

[0011] A further improvement of this invention includes a moving mechanism, which is mounted on the base and drives the base to move relative to the pipeline. The moving mechanism ensures that the dredging device can automatically and smoothly move along the pipeline, reducing manual intervention and improving cleaning efficiency. It ensures that the device fully covers every area of ​​the pipeline's inner wall, avoiding blind spots, and enhances the device's adaptability to different pipeline configurations.

[0012] A further improvement of this invention is that multiple moving mechanisms are provided, and these multiple moving mechanisms are evenly distributed along the outer ring of the base. This even distribution of multiple moving mechanisms on the outer ring of the base ensures uniform load distribution and improves the stability and smoothness of the equipment within the pipeline. This design avoids the instability that may result from a single support point and is particularly suitable for cleaning tasks in long pipelines or complex environments.

[0013] A further improvement of this invention is that the moving mechanism includes a support rod and a moving wheel. One end of the support rod is mounted on the base, and the other end of the support rod is connected to the moving wheel. The combination of the support rod and the moving wheel allows the base to move smoothly along the pipeline, ensuring the stability and flexibility of the dredging device. The reliable connection between the support rod and the moving wheel improves the adaptability and working efficiency of the equipment in different environments, ensuring the stable operation of the device within the pipeline.

[0014] A further improvement of this invention is that the support rod is a telescopic rod, comprising a fixed rod and a movable rod. The fixed rod is mounted on the base, and the movable rod is fastened to the limiting groove of the fixed rod via a snap-fit. The telescopic rod design provides flexibility in adjusting the length of the support rod, adapting to pipes of different sizes and shapes, and ensuring stable support of the dredging device in various pipes. The snap-fit ​​limiting groove makes the adjustment process simple and stable, preventing the support rod from loosening or becoming unstable during use, thereby ensuring the reliability of the equipment.

[0015] As can be seen from the above technical solution, the beneficial effects of this utility model are as follows: The base has a hollow cavity, which, in conjunction with a motor drive, allows the connecting shaft to rotate via the motor's power output, thereby driving the scraper to perform cleaning work. The direct connection between the motor and the connecting shaft reduces energy loss during transmission and improves sludge removal efficiency. The scraper is mounted via the rotating arm, ensuring contact between the scraper and the inner wall of the pipe. Through rotational motion, it effectively removes sediment from the pipe, adapting to different pipe diameters and shapes, and improving the cleaning effect.

[0016] The base features a hollow structure design, reducing the overall weight of the dredging device and improving its mobility within the pipeline. This makes it particularly suitable for cleaning long-distance pipelines, reducing energy consumption and effectively avoiding the need for additional support due to excessive device weight, thus improving work efficiency.

[0017] The dredging device uses a rotating arm to drive a scraper to clean along the inner wall of the pipe. This allows for stable operation within the pipe, preventing localized overload or instability during the cleaning process. The combination of the rotating arm and scraper ensures uniform and efficient cleaning while reducing friction between equipment components and extending the equipment's lifespan. Attached Figure Description

[0018] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of a specific embodiment of the present utility model.

[0020] Figure 2 This is a schematic diagram of the overall structure of the support rod according to a specific embodiment of the present utility model.

[0021] In the attached diagram: 1. Base; 2. Connecting shaft; 3. Rotating arm; 4. Scraper; 5. Fixing sleeve; 6. Connecting rod; 7. Support rod; 71. Fixing rod; 72. Fixing rod; 8. Moving wheel. Detailed Implementation

[0022] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0023] refer to Figure 1As shown, this utility model discloses a dredging device for water conservancy pipelines, including a base 1, a connecting shaft 2, a rotating arm 3, and a scraper 4. The base 1 has a hollow cavity inside, and a motor is installed inside the hollow cavity. One end of the connecting shaft 2 is connected to the power output end of the motor. The rotating arm 3 is mounted on the connecting shaft 2 via a rotating shaft. The scraper 4 is mounted on the rotating arm 3 via a rotating shaft and cleans the inner wall of the pipeline. In this embodiment, the hollow structure of the base 1 not only facilitates the installation and maintenance of the motor, but also reduces the overall weight of the device and improves its mobility within the pipeline. It is particularly suitable for long-distance pipeline dredging work, reducing the consumption of manpower and resources. Furthermore, due to the hollow structure of the base 1, the dredging device can slide more easily in the pipeline during actual operation, reducing the need for additional support due to the device's weight. It is particularly suitable for use in long underground pipelines in urban areas or in farmland irrigation systems, reducing energy consumption during the dredging process and improving work efficiency and economic benefits. Because the connecting shaft 2 is directly connected to the motor, this direct connection design reduces energy loss during transmission, improves dredging efficiency, and is suitable for emergency situations requiring rapid dredging, such as cleaning drainage pipes after floods. In emergency applications, such as when urban drainage systems need to be restored quickly after floods, the direct connection design ensures that the maximum efficiency of the motor output is fully utilized for dredging, avoiding energy waste and enabling pipe cleaning to be completed in the shortest possible time, accelerating the city's return to normal operation and reducing the impact of disasters. The rotating arm 3 is mounted on the connecting shaft 2 via a rotating shaft, allowing for adjustable opening angles. The adjustable opening angle allows the dredging device to adapt to pipes of different diameters and shapes, improving dredging efficiency and adaptability. In pipe cleaning in complex terrain, the adjustable opening angle of the rotating arm 3 ensures close contact between the scraper 4 and the inner wall of the pipe, guaranteeing dredging effectiveness even when the pipe diameter and shape change significantly, reducing problems caused by ineffective cleaning due to special pipe designs.

[0024] Before starting use, first inspect all components of the water pipeline dredging device to ensure all parts are intact and undamaged. Ensure the power connection is normal and check that the motor voltage meets requirements to avoid motor damage. Inspect the pipeline to be cleaned to ensure there are no large obstructions or damage that could affect equipment operation. Turn on the power and start the motor. The motor's power will be transmitted to the rotating arm 3 through the connecting shaft 2. The rotating arm 3 drives the scraper 4 to clean along the inner wall of the pipeline. Adjust the opening angle of the rotating arm 3 to ensure the scraper 4 makes close contact with the inner wall of the pipeline for effective cleaning. The angle of the rotating arm 3 can be adjusted to accommodate various pipeline shapes according to their diameter. Driven by the rotating arm 3, the scraper 4 of the dredging device begins to remove deposits, dirt, and impurities from the inner wall of the pipeline.

[0025] Multiple rotating arms 3 are installed at equal intervals on the connecting shaft 2. This uniform distribution ensures the cleaning device can simultaneously perform multi-point cleaning within the pipe. The coordinated operation of each rotating arm 3 significantly improves cleaning efficiency, avoiding dead zones caused by a single rotating arm 3 failing to cover the entire inner wall of the pipe. The operation of multiple rotating arms 3 increases the contact area of ​​the device within the pipe, allowing the scraper 4 to more comprehensively contact the inner wall and perform cleaning at every location. The parallel operation of multiple rotating arms 3 helps remove deposits, dirt, and impurities from the pipe, not only increasing cleaning speed but also ensuring the quality of pipe cleaning. The even distribution of multiple rotating arms 3 avoids excessive friction and wear caused by concentrated loads when working with a single arm. The relatively balanced load on each rotating arm 3 reduces pressure on the motor, contributing to improved system stability and lifespan. Furthermore, multiple rotating arms 3 provide greater adaptability to complex pipe environments. When the inner wall of the pipe has an irregular shape or the pipe diameter varies, the multiple rotating arms 3 can flexibly adjust and achieve comprehensive cleaning by using different angles and cleaning paths.

[0026] The scraper 4 has a curved edge and a coating layer. The curved edge design allows it to better conform to the inner wall of the pipe, ensuring maximum contact area during cleaning. The curved edge closely follows the curve of the pipe wall, effectively removing deposits and dirt regardless of whether the pipe is straight, curved, or has a diameter change. This avoids the situation where a straight-edged scraper 4 cannot fully conform to the inner wall when operating inside the pipe. The coating layer provides an extra layer of protection to the edge of the scraper 4, effectively reducing friction between the scraper 4 and the inner wall of the pipe. The coating layer can be made of wear-resistant materials (such as rubber, polyurethane, or other composite materials), improving the durability of the scraper 4 and extending its service life, especially reducing the need for frequent replacement of the scraper 4 during long-term use and in harsh environments.

[0027] It also includes a fixing sleeve 5, which is installed on the connecting shaft 2. The fixing sleeve 5 is connected to the rotating arm 3 via a connecting rod 6 and adjusts the opening angle of the rotating arm 3 relative to the connecting shaft 2. The connection between the fixing sleeve 5 and the rotating arm 3 via the connecting rod 6 allows for precise adjustment of the opening angle of the rotating arm 3 relative to the connecting shaft 2. Through this adjustment mechanism, the rotating arm 3 can adjust the contact angle between the scraper 4 and the inner wall of the pipe according to the specific size, shape, and cleaning requirements of the pipe, thereby achieving the best cleaning effect. By adjusting the angle of the rotating arm 3, it can be ensured that the scraper 4 is in close contact with the inner wall of the pipe throughout the cleaning process, reducing blind spots and dead angles. Whether the pipe is straight or curved, the angle can be adjusted to ensure that the scraper 4 fully covers every part of the inner wall of the pipe, ensuring that all dirt and deposits are removed. At the same time, the cooperative design of the fixing sleeve 5 and the connecting rod 6 allows the rotating arm 3 to rotate smoothly, avoiding uneven wear on the scraper 4, rotating arm 3, and other components due to improper angle.

[0028] It also includes a moving mechanism, which is mounted on the base 1 and drives the base 1 to move relative to the pipeline. The design of the moving mechanism allows the dredging device to move freely inside the pipeline, ensuring that the base 1 can move smoothly along the pipeline axis. Through the moving mechanism, the device can adapt to different shapes, lengths, and directions of pipelines, avoiding the limitations of traditional dredging equipment in flexibly coping with complex pipeline structures.

[0029] Multiple moving mechanisms are provided, evenly distributed along the outer ring of the base 1. This even distribution of mechanisms effectively balances the load, ensuring stable movement of the base 1 within the pipeline during dredging. The more even distribution of workload across each mechanism prevents damage or unstable movement caused by excessive local pressure. This design not only improves equipment stability but also extends its service life.

[0030] The moving mechanism includes a support rod 7 and a moving wheel 8. One end of the support rod 7 is mounted on the base 1, and the other end is connected to the moving wheel 8. The support rod 7 is a telescopic rod, comprising a fixed rod 71 and a movable rod 72. The fixed rod 71 is mounted on the base 1, and the movable rod 72 is fastened to the limiting groove of the fixed rod via a snap-fit ​​mechanism. The telescopic design allows the support rod 7 to be adjusted according to different pipe sizes and shapes. By adjusting the length of the movable rod, the dredging device can adapt to pipes of different diameters, lengths, and shapes. The telescopic function of the support rod 7 makes the device more flexible during pipe cleaning, especially when dealing with irregular pipes or pipes with bends, ensuring equipment stability and cleaning efficiency. Simultaneously, the cooperation between the fixed rod 71 and the movable rod 72 ensures the stability of the support rod 7. The movable rod 72 is installed in the limiting groove of the fixed rod 71 by a snap-fit, which can maintain a stable connection when adjusting the telescopic length, avoiding equipment instability caused by unstable telescopic or loose telescopic movement; at the same time, it ensures the normal operation of the moving wheel 8, ensuring the smooth movement of the equipment in the pipeline and improving the working stability of the equipment.

[0031] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A dredging device for water conservancy pipelines, characterized in that, It includes a base (1), a connecting shaft (2), a rotating arm (3), and a scraper (4); the base (1) has a hollow cavity inside, and a motor is installed in the hollow cavity. One end of the connecting shaft (2) is connected to the power output end of the motor. The rotating arm (3) is mounted on the connecting shaft (2) through a rotating shaft. The scraper (4) is mounted on the rotating arm (3) through a rotating shaft and cleans the inner wall of the pipe.

2. The dredging device for water conservancy pipelines according to claim 1, characterized in that, Multiple rotating arms (3) are provided, and multiple rotating arms (3) are installed on the connecting shaft (2) at equal intervals.

3. The dredging device for water conservancy pipelines according to claim 1, characterized in that, The scraper (4) has a curved edge and is covered with a coating layer.

4. The dredging device for water conservancy pipelines according to claim 1, characterized in that, It also includes a fixing sleeve (5), which is installed on the connecting shaft (2). The fixing sleeve (5) is connected to the rotating arm (3) through a connecting rod (6) and adjusts the opening angle of the rotating arm (3) relative to the connecting shaft (2).

5. The dredging device for water conservancy pipelines according to claim 1, characterized in that, It also includes a moving mechanism, which is mounted on the base (1) and drives the base (1) to move relative to the pipeline.

6. The dredging device for water conservancy pipelines according to claim 5, characterized in that, Multiple moving mechanisms are provided, and the multiple moving mechanisms are distributed at equal intervals along the outer ring of the base (1).

7. The dredging device for water conservancy pipelines according to claim 6, characterized in that, The moving mechanism includes a support rod (7) and a moving wheel (8). One end of the support rod (7) is mounted on the base (1), and the other end of the support rod (7) is connected to the moving wheel (8).

8. The dredging device for water conservancy pipelines according to claim 7, characterized in that, The support rod (7) is a telescopic rod, which includes a fixed rod (71) and a movable rod (72). The fixed rod (71) is installed on the base (1), and the movable rod (72) is installed in the limiting groove of the fixed rod (71) by a snap fastener.