A pipe cleaning device for trenchless pipe rehabilitation
By designing a pipe cleaning device with a pneumatic spear and adjustable blades, the compatibility problem of pipes with different inner diameters was solved, achieving a highly efficient cleaning effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN JINYIDA ENVIRONMENTAL TECH CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-06-23
AI Technical Summary
The pipe cleaning devices on the market cannot be adapted to pipes of different inner diameters, resulting in unsatisfactory cleaning effects and reduced adaptability.
A trenchless pipe repair and cleaning device was designed, which adopts a pneumatic spear and adjustable blade structure. It uses pneumatic pulse stepping impact for automated cleaning and the adjustable blade can adapt to different pipe diameters. It uses a one-way wheel to maintain stable forward movement, thus achieving adaptation to pipes with different inner diameters.
It enables efficient cleaning of pipes with different inner diameters, improving the adaptability and cleaning effect of the cleaning device.
Smart Images
Figure CN224389535U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline cleaning technology, and in particular to a pipeline cleaning device for trenchless pipeline repair. Background Technology
[0002] Pipe cleaning devices, as key equipment to ensure the smooth operation of pipeline systems, are mainly used to clean residual clumps of concrete at pipe joints and other possible protruding obstructions on the pipe walls. Pipe cleaning devices have a wide range of applications, including municipal construction, industrial production, and civil facilities. Their core function is to efficiently and comprehensively remove various obstructions from within the pipes. Therefore, whether it's dirt and debris gradually accumulated during daily use or scaling and blockages caused by special operating conditions, pipe cleaning devices can handle them with ease thanks to their superior performance, ensuring that the pipeline system always maintains a good operating condition and effectively avoiding a series of problems caused by pipe blockages, providing solid and powerful support for the normal operation of various fields.
[0003] However, during the implementation of the above technical solution, at least the following technical problems were discovered:
[0004] There are different types of pipes on the market, and these different types of pipes may have different inner diameters. Therefore, when cleaning pipes, pipe cleaning agencies may not be able to adapt to pipes with different inner diameters because the inner diameter is too large or too small. This results in unsatisfactory cleaning effect and reduces the adaptability of pipe cleaning devices to pipes with different inner diameters. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a trenchless pipe cleaning device for pipe repair. This device solves the problem that different types of pipes exist on the market, and these different types of pipes may have different inner diameters. Therefore, when cleaning pipes, the pipe cleaning mechanism may not be able to adapt to pipes with different inner diameters due to the inner diameter being too large or too small, resulting in unsatisfactory cleaning effects and reducing the adaptability of the pipe cleaning device to pipes with different inner diameters.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A trenchless pipe repair and cleaning device includes a pneumatic spear. An air inlet pipe is provided at the rear end of the pneumatic spear. Three support rods are fixedly connected to the surface of the pneumatic spear. One end of each support rod is fixedly connected to a one-way wheel. A connecting plate is fixedly connected to one end of the pneumatic spear. A cutter head is provided at one end of the connecting plate. Four bolts are provided at the side end of the cutter head. Four threaded grooves are opened at the side end of the connecting plate. The four threaded grooves correspond to the four bolts. The four bolts pass through the cutter head and are threadedly connected to the connecting plate through the threaded grooves.
[0008] Preferably, each side end of the cutter head is provided with six adjusting grooves, and each front end of the cutter head is provided with six L-shaped blades, each blade corresponding to the position of the six adjusting grooves.
[0009] Preferably, each blade has two holes on its surface, and the position of the holes corresponds to the position of the adjustment groove.
[0010] Preferably, each blade has two bolts at one end, and each bolt corresponds to a hole.
[0011] Preferably, each adjusting slot has a nut at its rear end, and each nut corresponds to the position of bolt one.
[0012] Preferably, each bolt passes through a blade and is threaded into the corresponding nut.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] 1. When it is necessary to adjust the blade, first loosen the nut. At this time, the bolt is no longer tightened, and the blade can move in the adjusting groove. Adjust the position of the blade in the adjusting groove according to the pipe diameter requirements or cleaning operation requirements. For example, slide along the adjusting groove to change the blade extension length to adapt to the cleaning of pipes with different diameters. After the adjustment is completed, tighten the nut, and the bolt will be tightened accordingly. The nut will press against the blade disc. At this time, place the pipe cleaning device into another pipe so that the cleaning device can be adapted to pipes with different radii.
[0015] 2. The pneumatic spear is used to automatically clean the clumps on the inner wall of the pipe by pneumatic pulse stepping impact. The pneumatic spear can advance along a fixed line in the pipe. During the pneumatic pulse stepping process, a one-way wheel is designed to ensure that the pneumatic spear keeps moving forward and prevents the pneumatic spear from retreating under the action of the pulse and failing to provide the breaking force. Attached Figure Description
[0016] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.
[0017] Figure 1 This is a structural diagram of the entire utility model;
[0018] Figure 2 This is a structural diagram of the pneumatic spear of this utility model;
[0019] Figure 3 This is a structural diagram of the cutter head of this utility model;
[0020] Figure 4 This is a structural diagram of the blade of this utility model.
[0021] Legend: 11. Pneumatic spear; 12. Support rod; 13. Cutter head; 14. Air inlet pipe; 15. One-way wheel; 16. Blade; 17. Bolt 1; 18. Bolt 2; 19. Connecting plate; 20. Threaded groove; 21. Adjusting cutter groove; 22. Nut. Detailed Implementation
[0022] This application provides a trenchless pipe repair and cleaning device, which effectively solves the problem that different types of pipes on the market may have different inner diameters. Therefore, when cleaning pipes, the pipe cleaning device may not be able to adapt to pipes with different inner diameters due to the inner diameter being too large or too small, resulting in unsatisfactory cleaning effect and reducing the adaptability of the pipe cleaning device to pipes with different inner diameters. Example
[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in this application embodiment effectively solves the problem that different types of pipes on the market may have different inner diameters. Therefore, when cleaning pipes, the pipe cleaning mechanism may not be able to adapt to pipes with different inner diameters due to the inner diameter being too large or too small, resulting in unsatisfactory cleaning effect and reducing the technical problem of the pipe cleaning device's adaptability to pipes with different inner diameters. The overall idea is as follows:
[0024] To address the problems existing in the prior art, this utility model provides a trenchless pipe repair and cleaning device, including a pneumatic spear 11. Workers place the pipe cleaning device inside the pipe to be cleaned. To ensure stability inside the pipe, an air inlet pipe 14 is provided at the rear end of the pneumatic spear 11. Three support rods 12 are fixedly connected to the surface of the pneumatic spear 11, and one-way wheels 15 are fixedly connected to one end of each support rod 12. The three support rods 12 and one-way wheels 15 abut against the inner wall of the pipe, providing the pneumatic spear 11 with three-legged support and a stable support environment for the subsequent cleaning of the pipe interior by the blades 16.
[0025] When the pipe cleaning device is started, in order to ensure that the pneumatic spear 11 can stably drive the blade 16 forward, the pipe cleaning device uses the pneumatic pulse stepping impact of the pneumatic spear 11 to automatically clean the clumps on the inner wall of the pipe. In order to ensure that the pneumatic spear 11 keeps moving forward during the pneumatic pulse stepping process, a one-way wheel 15 is designed. The one-way wheel 15 can only move in a single direction, which solves the problem that the pneumatic spear 11 cannot provide breaking force when it retracts under the action of the pulse.
[0026] To address the issue of pipe cleaning devices being incompatible with pipes of varying radii, adjustable blades 16 are installed on the cutter head 13. A connecting plate 19 is fixedly connected to one end of the pneumatic spear 11, and the cutter head 13 is mounted on one end of the connecting plate 19. Four bolts 18 are installed on the side of the cutter head 13, and four threaded grooves 20 are formed on the side of the connecting plate 19. All four bolts 18 pass through the cutter head 13 and are threaded into the connecting plate 19 via the threaded grooves 20. When bolts 17 and nuts 22 are tightened, the nuts 22 will press against the cutter head 13. Six adjusting blade slots 21 are formed on the side of the cutter head 13, and six L-shaped blades 16 are installed at the front end of the cutter head 13. Each blade 16 has two holes on its surface, the positions of which correspond to the positions of the adjusting blade slots 21. Each end is equipped with two bolts 17, each bolt 17 corresponding to a hole. Each adjusting blade groove 21 has a nut 22 at its rear end. Each bolt 17 passes through the blade 16 and is threaded into the corresponding nut 22. When the blade needs to be adjusted, first loosen the nut 22. At this time, the bolt 17 is no longer tightened, and the blade 16 can move within the adjusting blade groove 21. According to the pipe diameter requirements or cleaning operation requirements, adjust the position of the blade 16 within the adjusting blade groove 21. For example, slide along the adjusting blade groove 21 to change the extension length of the blade 16 to adapt to cleaning pipes of different diameters. After adjustment, tighten the nut 22, and the bolt 17 will be tightened accordingly. The nut 22 will press against the blade disc 13. At this time, the pipe cleaning device can be placed inside another pipe, so that the cleaning device can adapt to pipes of different radii.
[0027] Working principle:
[0028] The first step involves the staff placing the pipe cleaning device inside the pipe that needs to be cleaned and starting the device. To ensure that the pneumatic spear 11 can stably drive the blade 16 forward, the pipe cleaning device uses the pneumatic pulse stepping impact of the pneumatic spear 11 to automatically clean the clumps on the inner wall of the pipe. In order to ensure that the pneumatic spear 11 keeps moving forward during the pneumatic pulse stepping process, a one-way wheel 15 is designed. The one-way wheel 15 can only move in one direction.
[0029] The second step is to loosen nut 22 when the blade needs to be adjusted. At this time, bolt 17 is no longer tightened, and blade 16 can move in the adjusting groove 21. Adjust the position of blade 16 in the adjusting groove 21 according to the pipe diameter requirements or cleaning operation requirements. For example, slide along the adjusting groove 21 to change the extension length of blade 16 to adapt to the cleaning of pipes with different diameters. After the adjustment is completed, tighten nut 22, and bolt 17 will be tightened accordingly. Nut 22 will press against the blade disc 13. At this time, place the pipe cleaning device into another pipe so that the cleaning device can be adapted to pipes with different radii.
[0030] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A trenchless pipe repair and cleaning device, comprising a pneumatic spear (11), characterized in that, The pneumatic spear (11) is provided with an air inlet pipe (14) at its rear end, and three support rods (12) are fixedly connected to the surface of the pneumatic spear (11). Each support rod (12) is fixedly connected to a one-way wheel (15) at one end, and a connecting plate (19) is fixedly connected to one end of the pneumatic spear (11). A cutter disc (13) is provided at one end of the connecting plate (19), and four bolts (18) are provided at the side end of the cutter disc (13). Four threaded grooves (20) are opened at the side end of the connecting plate (19). All four bolts (18) pass through the cutter head (13) and are threadedly connected to the connecting plate (19) through the threaded groove (20); The cutter head (13) has six adjustable cutter grooves (21) on each side end. The front end of each cutter head (13) is provided with six L-shaped blades (16).
2. The pipeline cleaning device for trenchless pipeline repair as described in claim 1, characterized in that: Each blade (16) has two holes on its surface, the positions of which correspond to the positions of the adjusting grooves (21).
3. The pipeline cleaning device for trenchless pipeline repair as described in claim 2, characterized in that: Each of the blades (16) has two bolts (17) at one end, and each bolt (17) corresponds to the position of the hole.
4. The pipeline cleaning device for trenchless pipeline repair as described in claim 3, characterized in that: Each of the aforementioned adjusting slots (21) has a nut (22) at its rear end.
5. The pipeline cleaning device for trenchless pipeline repair as described in claim 4, characterized in that: Each of the bolts (17) passes through the blade (16) and is threaded into the corresponding nut (22).