Pipeline inner wall cleaning device for non-excavation type pipeline repair

By designing a trenchless pipe wall cleaning device that allows for quick disassembly, the problems of laborious disassembly and easy damage of existing devices have been solved, achieving efficient pipe wall cleaning and improving construction progress.

CN224214964UActive Publication Date: 2026-05-08HUBEI HUAIXI CONSTR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI HUAIXI CONSTR CO LTD
Filing Date
2025-06-24
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing pipe wall cleaning devices are laborious and easily damaged during disassembly, affecting construction progress and efficiency.

Method used

A trenchless pipe repair device for cleaning the inner wall of a pipe is designed. By cooperating with the threaded rod of the positioning component and the arc-shaped limiting plate, the circular cleaning plate can be quickly disassembled and installed. The cleaning is carried out by moving the steel cable and rollers inside the pipe.

Benefits of technology

It simplifies the disassembly process of the device, reduces equipment wear, improves construction efficiency, and extends the service life of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a pipeline inner wall cleaning device for non-excavation type pipeline repair, and belongs to the technical field of pipeline inner wall cleaning devices. The pipeline inner wall cleaning device for non-excavation type pipeline repair has the advantages of being fast to disassemble and assemble, improving the working efficiency and being easy to operate, parts in the positioning assembly are matched with one another, limiting of a positioning rod by four arc-shaped limiting clamping plates is canceled by rotating a threaded rod, and the cleaning efficiency is improved. On the contrary, the circular cleaning plate can be rapidly mounted by reversely rotating the threaded rod, operation is easy, time is saved, pipeline maintenance work can be completed more rapidly through rapid dismounting, construction delay is reduced, the overall project efficiency is improved, and a traditional dismounting mode is likely to cause equipment damage, so that the construction efficiency is improved. And by simplifying the operation, the abrasion to the equipment is reduced, and the service life of the equipment is prolonged.
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Description

Technical Field

[0001] This utility model belongs to the technical field of pipeline inner wall cleaning devices, specifically relating to a pipeline inner wall cleaning device for trenchless pipeline repair. Background Technology

[0002] Trenchless pipeline repair is a pipeline maintenance technology designed to repair or replace damaged pipelines without excavating the ground. This method operates through the existing pipeline inlet, using specialized equipment and techniques to repair the pipeline, avoiding disruption to the surrounding environment and infrastructure. Its main features are reduced environmental impact, shorter construction time, and lower overall costs.

[0003] During pipeline maintenance, the disassembly of cleaning equipment is often a complex and time-consuming process. Most existing pipeline inner wall cleaning devices rely on cleaning brushes or cleaning plates. These devices need to be disassembled and cleaned after use. The disassembly process is not only laborious but also prone to damage or wear of the equipment, increasing the difficulty of subsequent maintenance. This not only delays the entire construction process but may also affect the overall efficiency of the project. Therefore, a trenchless pipeline repair inner wall cleaning device is proposed to solve the above problems. Utility Model Content

[0004] In view of one or more of the above-mentioned defects or improvement needs of the existing technology, this utility model provides a trenchless pipeline repair pipe inner wall cleaning device, which has the advantages of quick disassembly and assembly, improved work efficiency and simple operation.

[0005] To achieve the above objectives, this utility model provides a trenchless pipeline repair pipe inner wall cleaning device, including a positioning column. The positioning column has three sets of connectors arranged around its outer periphery, and each set of connectors consists of three mounting seats. The three mounting seats on the same side are respectively rotatably connected to a first connecting rod, a second connecting rod, and a third connecting rod via a rotating shaft. The first connecting rod is located between the second connecting rod and the third connecting rod. One end of the second connecting rod is connected to the middle of the first connecting rod via a rotating shaft. One end of the first connecting rod and the third connecting rod are connected to a mounting rod via a rotating shaft. Both ends of the mounting rod are rotatably connected to rollers via rotating shafts.

[0006] One end of the positioning post is equipped with a positioning component, and one end of the positioning component is provided with a circular cleaning plate.

[0007] The other end of the positioning column is fixedly connected with a steel cable.

[0008] As a further improvement of this utility model, the positioning component includes a mounting cylinder, the bottom wall of which is fitted with a mounting plate, and four arc-shaped limiting plates are mounted around one side of the mounting plate. One end of the mounting cylinder is fitted with a mounting ring, and the inner wall of the mounting ring is fitted with an internal threaded ring. The internal threaded ring is internally threaded with a threaded rod, and one side of the threaded rod is provided with a through hole.

[0009] As a further improvement of this utility model, one end of the threaded rod is provided with an arc-shaped groove, and one end of the four arc-shaped limiting plates is provided with an arc surface.

[0010] As a further improvement of this utility model, the inner wall of the mounting cylinder is provided with four positioning blocks in a circumferential manner, and the outer side of the mounting plate is provided with four mounting grooves in a circumferential manner, with the four positioning blocks respectively engaging in the four mounting grooves.

[0011] As a further improvement of this utility model, a positioning rod is provided in the middle of one side of the circular cleaning plate, and the size of the positioning rod corresponds to the through hole on one side of the threaded rod.

[0012] In summary, the beneficial effects of the above-described technical solutions conceived by this utility model compared with the prior art include:

[0013] This utility model relates to a trenchless pipeline repair and internal wall cleaning device. Through the interoperation of components within a positioning assembly, rotating the threaded rod releases the four arc-shaped limiting plates from restricting the positioning rod, allowing for quick disassembly of the circular cleaning plate. Conversely, rotating the threaded rod in the opposite direction allows for quick installation of the circular cleaning plate. The operation is simple and time-saving. The rapid disassembly enables faster completion of pipeline maintenance work, reducing construction delays and improving overall project efficiency. Traditional disassembly methods easily damage equipment, while this device simplifies operation, reduces wear and tear, and extends the equipment's service life. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall installation structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the disassembly structure of the positioning component and the circular cleaning plate of this utility model;

[0016] Figure 3 This is a schematic diagram of the cross-sectional installation structure of the positioning component of this utility model;

[0017] Figure 4 This is a cross-sectional disassembly diagram of the positioning component of this utility model.

[0018] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1. Positioning post; 10. Mounting base; 11. First connecting rod; 12. Second connecting rod; 13. Third connecting rod; 14. Mounting rod; 15. Roller; 2. Positioning assembly; 20. Mounting cylinder; 201. Positioning block; 21. Mounting disc; 22. Arc-shaped limiting plate; 23. Mounting ring; 24. Internal threaded ring; 25. Threaded rod; 251. Arc-shaped groove; 3. Circular cleaning plate; 31. Positioning rod; 4. Steel cable. Detailed Implementation

[0019] 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.

[0020] Example

[0021] Depend on Figure 1-4 Provided is a trenchless pipeline repair pipe inner wall cleaning device, including a positioning column 1. The positioning column 1 has three sets of connectors arranged around its outer periphery, and each set of connectors consists of three mounting seats 10. The three mounting seats 10 on the same side are respectively rotatably connected to a first connecting rod 11, a second connecting rod 12, and a third connecting rod 13 via a rotating shaft. The first connecting rod 11 is located between the second connecting rod 12 and the third connecting rod 13. One end of the second connecting rod 12 is connected to the middle of the first connecting rod 11 via a rotating shaft. One end of the first connecting rod 11 and the third connecting rod 13 are connected to a mounting rod 14 via a rotating shaft. Both ends of the mounting rod 14 are rotatably connected to rollers 15 via rotating shafts.

[0022] The positioning column 1 is equipped with a positioning component 2 at one end, and a circular cleaning plate 3 is provided at one end of the positioning component 2.

[0023] The other end of the positioning column 1 is fixedly connected to a steel cable 4;

[0024] Positioning component 2 includes mounting cylinder 20, mounting plate 21 is mounted on the bottom wall of mounting cylinder 20, four arc-shaped limiting plates 22 are mounted around one side of mounting plate 21, mounting ring 23 is mounted on one end of mounting cylinder 20, internal thread ring 24 is mounted on the inner wall of mounting ring 23, threaded rod 25 is provided inside the internal thread ring 24 and a through hole is provided on one side of threaded rod 25.

[0025] A positioning rod 31 is provided in the middle of one side of the circular cleaning plate 3, and the size of the positioning rod 31 corresponds to the through hole on one side of the threaded rod 25.

[0026] In this embodiment, the positioning rod 31 is inserted between four arc-shaped limiting plates 22 by passing through the threaded rod 25. Rotating the threaded rod 25 causes one end of the threaded rod 25 to move towards one end of the four arc-shaped limiting plates 22, thereby pressing the four arc-shaped limiting plates 22 together and centering them to limit and fix the positioning rod 31, thus achieving the installation of the circular cleaning plate 3. By placing this device inside a pipe, passing one end of the steel cable 4 through the pipe and connecting it to an external traction device, and using several rollers 15, the device is then lifted... The device moves inside the pipeline, causing the circular cleaning plate 3 to clean the inner wall of the pipeline. When disassembling the circular cleaning plate 3, the threaded rod 25 is rotated in the opposite direction to release the threaded rod 25 from the four arc-shaped limiting plates 22, allowing the circular cleaning plate 3 to be quickly disassembled. The operation is simple and saves time. The quick disassembly allows pipeline maintenance work to be completed more quickly, thereby reducing construction delays and improving the overall project efficiency. Traditional disassembly methods are prone to causing equipment damage, while this device reduces wear and tear on the equipment and extends its service life by simplifying the operation.

[0027] Specifically, refer to Figure 4 The threaded rod 25 has an arc groove 251 at one end, and the four arc-shaped limiting plates 22 have an arc surface at one end.

[0028] In this embodiment, the arc-shaped groove 251 is tightly abutted against one end of the four arc-shaped limiting plates 22. At the same time, when the threaded rod 25 moves, the four arc-shaped limiting plates 22 are squeezed and moved in the same direction by the action of the arc-shaped groove 251.

[0029] Specifically, refer to Figure 3-4 The inner wall of the mounting cylinder 20 is provided with four positioning blocks 201 in a circumferential manner, and the outer side of the mounting plate 21 is provided with four mounting grooves in a circumferential manner, with the four positioning blocks 201 respectively engaging in the four mounting grooves.

[0030] In this embodiment, the mounting plate 21 is detachably mounted inside the mounting cylinder 20 via four positioning blocks 201. The detachable connection makes subsequent maintenance of the four arc-shaped limiting plates 22 more convenient.

[0031] This utility model relates to a trenchless pipeline repair and internal wall cleaning device:

[0032] In practical use, the positioning rod 31 is inserted between the four arc-shaped limiting plates 22 by passing through the threaded rod 25. By rotating the threaded rod 25, one end of the threaded rod 25 moves towards one end of the four arc-shaped limiting plates 22, thereby squeezing the four arc-shaped limiting plates 22 and centering them, thus limiting and fixing the positioning rod 31. This achieves the installation of the circular cleaning plate 3. By placing the device into the pipeline, one end of the steel cable 4 is passed through the pipeline and connected to an external traction device. With the help of several rollers 15, the device is moved inside the pipeline, allowing the circular cleaning plate 3 to clean the inner wall of the pipeline. When disassembling the circular cleaning plate 3, the threaded rod 25 is rotated in the opposite direction to release the limiting effect of the threaded rod 25 on the four arc-shaped limiting plates 22, allowing the circular cleaning plate 3 to be quickly disassembled.

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

Claims

1. A trenchless pipeline repair device for cleaning the inner wall of a pipeline, characterized in that: The device includes a positioning post (1), which has three sets of connectors arranged around its outer periphery. Each set of connectors consists of three mounting seats (10). The three mounting seats (10) on the same side are respectively connected to a first connecting rod (11), a second connecting rod (12), and a third connecting rod (13) via a rotating shaft. The first connecting rod (11) is located between the second connecting rod (12) and the third connecting rod (13). One end of the second connecting rod (12) is connected to the middle of the first connecting rod (11) via a rotating shaft. One end of the first connecting rod (11) and the third connecting rod (13) are connected to a mounting rod (14) via a rotating shaft. Both ends of the mounting rod (14) are connected to rollers (15) via rotating shafts. The positioning post (1) is equipped with a positioning component (2) at one end, and a circular cleaning plate (3) is provided at one end of the positioning component (2). The other end of the positioning column (1) is fixedly connected to a steel cable (4); The positioning component (2) includes a mounting cylinder (20), the bottom wall of which is fitted with a mounting plate (21), and four arc-shaped limiting plates (22) are mounted around one side of the mounting plate (21). One end of the mounting cylinder (20) is fitted with a mounting ring (23), and the inner wall of the mounting ring (23) is fitted with an internal threaded ring (24). The internal threaded ring (24) is threaded with a threaded rod (25), and a through hole is provided on one side of the threaded rod (25). One end of the threaded rod (25) is provided with an arc groove (251), and one end of the four arc-shaped limiting plates (22) is provided with an arc surface.

2. The pipe inner wall cleaning device for trenchless pipe repair according to claim 1, characterized in that, The inner wall of the mounting cylinder (20) is provided with four positioning blocks (201) in a circumferential manner, and the outer side of the mounting plate (21) is provided with four mounting grooves in a circumferential manner, with the four positioning blocks (201) respectively engaging in the four mounting grooves.

3. The pipe inner wall cleaning device for trenchless pipe repair according to claim 1, characterized in that, The circular cleaning plate (3) has a positioning rod (31) in the middle of one side, and the size of the positioning rod (31) corresponds to the through hole on one side of the threaded rod (25).