Silting treatment device suitable for old pipeline in narrow street
By designing a dredging device suitable for old pipes in narrow streets and alleys, and utilizing an expansion power cylinder and linkage mechanism to achieve adaptive cleaning, the safety hazards and high economic costs of traditional cleaning methods are solved, achieving safe and efficient pipe cleaning results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CCCC THIRD HARBOR ENGINEERING CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-08
AI Technical Summary
Traditional cleaning methods pose safety hazards and have unsatisfactory dredging effects in narrow streets and old pipes, especially in narrow and mismatched pipe diameters, resulting in high economic costs and inefficient cleaning.
A device including a dredging mechanism and a traction guiding mechanism was designed. By utilizing an expansion power cylinder, a linkage mechanism and a wall-protecting roller, and through the cooperation of a winch and a wire rope, it can achieve adaptive cleaning of pipes of different diameters, avoid personnel going down into the well, and use rubber protective skin to protect the pipes.
It achieves safe and reliable pipeline cleaning, reduces economic costs, is suitable for various narrow environments, improves construction efficiency and applicability, and avoids the safety risks of manual well entry.
Smart Images

Figure CN224213501U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of municipal sewage pipeline dredging, specifically relating to a silt treatment device suitable for old pipelines in narrow streets and alleys. Background Technology
[0002] Municipal drainage pipe systems are a vital infrastructure in modern cities, responsible for discharging rainwater and sewage. With continuous urban development and the long-term operation of these systems, pipe blockage leading to poor drainage has become increasingly serious, impacting the normal functioning of the city. This is especially true for older towns, where streets vary in width, underground drainage systems are outdated, and pipe diameters differ, making blockages even more severe and potentially causing flooding during the rainy season.
[0003] Traditional manual cleaning methods pose safety hazards such as hydrogen sulfide poisoning and suffocation, and are ineffective at clearing blockages in small-diameter pipes. Existing equipment suffers from limitations such as narrow streets and alleys, difficulty in deploying equipment, and incompatibility with pipe diameters, resulting in unsatisfactory cleaning results and high economic costs. Therefore, it is necessary to develop a new type of blockage removal device to effectively clear blockages in drainage pipes of different diameters in the narrow streets and alleys of ancient towns. Utility Model Content
[0004] To address the aforementioned problems, this utility model discloses a silt removal device suitable for old pipes in narrow streets and alleys. It eliminates the need for personnel to go down into the well, can clean pipes of different diameters, is safe and reliable, has low economic cost, and is widely applicable.
[0005] To achieve the above objectives, the technical solution of this utility model is as follows:
[0006] A device for clearing blockages in old pipes in narrow streets and alleys includes a dredging mechanism and a traction guiding mechanism. The dredging mechanism includes a sleeved cylindrical outer shell and an outer running sleeve. The outer shell has a groove on its surface and an expansion power cylinder inside. The telescopic rod of the expansion power cylinder drives the running sleeve to slide on the surface of the cylindrical outer shell. The front and rear ends of the cylindrical outer shell are equipped with connecting plates, and the outer side of the connecting plates is equipped with connecting rings. A folding plate is movably connected to the periphery of the front connecting plate. The periphery of the folding plate is equipped with a rubber protective skin. The cylindrical outer shell and the outer side of the running sleeve are connected to the folding plate through a linkage mechanism. The traction guiding mechanism includes a generator, a winch, a guide frame, a guide wheel, and a wire rope. The guide frame is located at the front end of the dredging mechanism. The wire rope connects to the winch from the front connecting ring, the guide frame, and the guide wheel. The winch is connected to the generator.
[0007] As an improvement of this utility model, one end of the linkage mechanism extends into the inner wall of the pipe to form a protective roller.
[0008] As an improvement of this utility model, the rear connecting ring is connected to the attached rope.
[0009] As an improvement of this utility model, the linkage mechanism consists of 4 groups, which are evenly distributed on the outer surface of the cylindrical shell.
[0010] As an improvement of this utility model, the expansion power cylinder is controlled by a controller.
[0011] The beneficial effects of this utility model are as follows:
[0012] (1) The winch pulls the dredging mechanism forward, eliminating the need for personnel to go down into the well, thus avoiding the safety risks of gas poisoning and suffocation in confined spaces.
[0013] (2) The adaptive adjustment of the working radius through the linkage mechanism satisfies the general cleaning needs of pipes with different diameters;
[0014] (3) The device has a small overall size and can be used in various narrow environments;
[0015] (4) The device can be operated with water, is safe and reliable, has low economic cost, reduces the burden of related operations, improves construction efficiency, and also has good economic efficiency and applicability. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model.
[0017] Figure 2 This is a schematic diagram of the unblocking mechanism described in this utility model.
[0018] Figure 3 This is a schematic diagram of the folding plate described in this utility model.
[0019] List of identifiers in attached diagrams:
[0020] 1. Dredging mechanism; 2. Pipeline; 3. Upstream inspection well; 4. Downstream inspection well; 5. Generator; 6. Winch; 7. Guide frame; 8. Guide wheel; 9. Wire rope; 10. Attached rope; 11. Controller; 101. Front connecting ring; 102. Rear connecting ring; 103. Expansion power cylinder; 104. Rubber protective skin; 105. Folding plate; 106. Running sleeve; 107. Telescopic rod; 108. Wall roller; 109. Linkage mechanism; 110. Housing; 111. Connecting plate. Detailed Implementation
[0021] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.
[0022] As shown in the figure, the present invention provides a device for treating blockages in old pipes in narrow streets and alleys, including a dredging mechanism 1 and a traction guiding mechanism. The dredging mechanism 1 includes a sleeved cylindrical outer shell 110 and an outer running sleeve 106. The outer shell 110 has a groove on its surface, and an expansion power cylinder 103 is provided inside the outer shell 110. The telescopic rod 107 of the expansion power cylinder drives the running sleeve 106 to slide on the surface of the cylindrical outer shell 110. The front and rear ends of the cylindrical outer shell 110 are provided with connecting plates 111. 1. Connecting rings 101 and 102 are provided on the outer side. A folding plate 105 is movably connected to the periphery of the front connecting plate. A rubber protective skin 104 is provided on the periphery of the folding plate 105. The cylindrical outer shell 110 and the running sliding sleeve 106 are connected to the folding plate through a linkage mechanism 109. The traction guiding mechanism includes a generator 5, a winch 6, a guide frame 7, a guide wheel 8, and a wire rope 9. The guide frame 7 is located at the front end of the unblocking mechanism 1. The wire rope 9 is connected to the winch 6 from the front connecting ring 101, the guide frame 7, and the guide wheel 8. The winch 6 is connected to the generator 5.
[0023] During operation, the entire device is first transported to the upstream and downstream inspection wells of the pipeline to be dredged by the transportation mechanism. The expansion controller 11, the attached rope 10 and the dredging mechanism 1 are placed at the upstream inspection well 3. The generator 5, winch 6, guide frame 7, guide wheel 8 and wire rope 9 of the traction guide mechanism are placed at the downstream inspection well 4. The lower end of the guide frame 7 extends into the downstream inspection well 4 and the upper end is above the ground. The wire rope 9 is connected to the winch 6 from the front connecting ring 101, the guide frame 7 and the guide wheel 8.
[0024] Place the unblocking mechanism 1 in the upstream inspection well 3, turn on the controller 11, expand the telescopic rod 107 of the power cylinder to drive the running sleeve 106 to slide on the surface of the cylindrical outer shell 110, and adjust the opening and closing degree of the rubber protective skin 104 of the unblocking mechanism 1 through the linkage mechanism 109 to achieve an operating radius consistent with the inner diameter of the pipeline to be treated.
[0025] The generator 5 is started to drive the winch 6 to start working. The guide frame 7 and the traction wire rope 9 pull the dredging mechanism 1 from the upstream inspection well 3 to the downstream inspection well 4 until the silt in the pipeline to be treated is pushed out from the downstream inspection well 4, completing the cleaning and recycling of the device.
[0026] This invention eliminates the need for personnel to go down into the well, enabling the cleaning of pipes of different diameters (without bends). The device is safe, reliable, economical, and widely applicable.
[0027] One end of the linkage mechanism 109 of this utility model extends into the inner wall of the pipe to form a protective roller 108, such as Figure 2 As shown, this can reduce the friction between the device and the pipe, making the unblocking device work more smoothly.
[0028] Rubber sheath 104 can prevent damage to the inner wall of the pipe.
[0029] The rear connecting ring 102 of this utility model connects to the attached rope 10, which facilitates placing the dredging mechanism 1 into the upstream inspection well 3.
[0030] The linkage mechanism 109 of this utility model consists of 4 groups, which are evenly distributed on the outer surface of the cylindrical shell 110, so that the force is uniform and the unblocking mechanism 1 moves forward horizontally.
[0031] The expansion power cylinder 103 of this utility model is controlled by the controller 11.
[0032] It should be noted that the above content merely illustrates the technical concept of this utility model and cannot be used to limit the scope of protection of this utility model. For those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and all such improvements and modifications fall within the scope of protection of the claims of this utility model.
Claims
1. A device for treating siltation in old pipes in narrow streets and alleys, characterized in that: The device includes a dredging mechanism and a traction guiding mechanism. The dredging mechanism comprises a sleeved cylindrical outer shell and an outer running sleeve. The outer shell has a groove on its surface and an expansion power cylinder inside. The telescopic rod of the expansion power cylinder drives the running sleeve to slide on the surface of the cylindrical outer shell. The front and rear ends of the cylindrical outer shell are provided with connecting plates, and the outer side of the connecting plates is provided with connecting rings. A folding plate is movably connected to the periphery of the front connecting plate. The periphery of the folding plate is provided with a rubber protective skin. The cylindrical outer shell and the outer side of the running sleeve are connected to the folding plate through a linkage mechanism. The traction guiding mechanism includes a generator, a winch, a guide frame, a guide wheel, and a wire rope. The guide frame is located at the front end of the dredging mechanism. The wire rope connects to the winch from the front connecting ring, the guide frame, and the guide wheel. The winch is connected to the generator.
2. The silt removal device for old pipelines in narrow streets and alleys according to claim 1, characterized in that: One end of the linkage mechanism extends into the inner wall of the pipe to form a protective roller.
3. The silt removal device for old pipelines in narrow streets and alleys according to claim 1, characterized in that: The rear connecting ring connects to the attached rope.
4. The silt removal device for old pipelines in narrow streets and alleys according to claim 1, characterized in that: The linkage mechanism consists of four sets, evenly distributed on the outer surface of the cylindrical shell.
5. A silt-removal device for old pipelines in narrow streets and alleys according to claim 1, characterized in that: The expansion power cylinder is controlled by a controller.