Municipal pipeline cleaning robot supporting mechanism
The support mechanism, which combines lead screw adjustment and swing arm pulley design, solves the problem of uneven cleaning caused by the swaying of the spring-supported swing arm, achieving stable support and uniform cleaning in pipes with different inner diameters.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUIJIAN HLDG GRP CO LTD
- Filing Date
- 2025-03-03
- Publication Date
- 2026-04-24
AI Technical Summary
The spring-supported swing arm of the municipal pipeline cleaning robot is prone to wobbling during operation, which makes it impossible for the robot to stay stably in the center of the pipeline, resulting in uneven cleaning.
The support mechanism, which uses a lead screw for adjustment, allows the position of the sliding ring to be adjusted by adjusting the nut. Combined with the design of the front and rear swing arms and pulleys, it ensures that the robot maintains stable support in pipes with different inner diameters.
It provides stable support in pipes with different inner diameters, avoiding shaking and ensuring uniform cleaning.
Smart Images

Figure CN224157467U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of municipal pipelines, and in particular to a support mechanism for a municipal pipeline cleaning robot. Background Technology
[0002] In order to match pipes with different inner diameters, the support mechanism of the rollers of municipal pipeline cleaning robots is generally realized by using a spring-supported swing arm structure. However, the swing arm supported by springs is prone to swaying during operation and cannot provide stable support for the robot. As a result, the robot does not always stay in the center of the pipe, resulting in uneven cleaning of the inner wall and surrounding area. Utility Model Content
[0003] The purpose of this invention is to provide a support mechanism for a municipal pipeline cleaning robot to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A support mechanism for a municipal pipeline cleaning robot includes a cylindrical pipeline robot, a fixed ring, a sliding ring, a front fixed arm, a rear fixed arm, a threaded screw, an adjusting nut, a front swing arm, a front pulley, a rear swing arm, a rear pulley, and a fixed connecting rod. The fixed ring is welded to the front outer side of the cylindrical pipeline robot, and a sliding ring is installed at the rear outer side of the cylindrical robot. Four front fixed arms and four rear fixed arms are equidistantly installed around the outer circumference of the fixed ring and the sliding ring, respectively. Threaded screws are welded to the rear ends of both the upper and lower front fixed arms. The rear ends of the threaded screws pass through the corresponding upper and lower rear fixed arms, and each threaded screw end is equipped with an adjusting nut, which can be used to adjust the front and rear positions of the sliding ring. Each of the front fixed arms has a rearward swinging front arm mounted on its outer side via a rotating shaft, and each front swinging arm has a front pulley mounted on its end. Each of the rear fixed arms has a forward swinging rear arm mounted on its outer side via a rotating shaft, and each rear swinging arm has a rear pulley mounted on its end. Each of the front and rear swing arms has a rotating shaft mounted at its center, and the rotating shafts between the corresponding front and rear swing arms are connected by a fixed connecting rod.
[0006] Preferably, the cylindrical pipe robot adopts existing pipe cleaning robot technology, with a rotating roller brush used for cleaning at the front end and a propeller propulsion power unit used for driving at the rear end.
[0007] The beneficial effects of this utility model are: This utility model is reasonably designed. By adjusting the outer diameter of the pulleys around the pipes in the longitudinal direction, it can match pipes with different inner diameters, providing stable and reliable support for the robot and avoiding the swaying of the swing arm supported by the spring, which would cause the robot to not stay in the center of the pipe and the cleaning of the surrounding area would be uneven. Attached Figure Description
[0008] Figure 1 This is a schematic diagram of the support mechanism for the municipal pipeline cleaning robot of this utility model;
[0009] Figure 2 This is a schematic diagram of the support mechanism for the municipal pipeline cleaning robot of this utility model.
[0010] In the diagram: 1. Cylindrical pipe robot, 2. Fixed ring, 3. Sliding ring, 4. Front fixed arm, 5. Rear fixed arm, 6. Threaded screw, 7. Adjusting nut, 8. Front swing arm, 9. Front pulley, 10. Rear swing arm, 11. Rear pulley, 12. Fixed link. Detailed Implementation
[0011] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:
[0012] like Figures 1-2 As shown, a support mechanism for a municipal pipeline cleaning robot includes a cylindrical pipeline robot 1, a fixed ring 2, a sliding ring 3, a front fixed arm 4, a rear fixed arm 5, a threaded screw 6, an adjusting nut 7, a front swing arm 8, a front pulley 9, a rear swing arm 10, a rear pulley 11, and a fixed connecting rod 12. The fixed ring 2 is welded to the front outer side of the cylindrical pipeline robot 1, and the sliding ring 3 is installed at the rear outer side of the cylindrical pipeline robot 1. Four front fixed arms 4 and four rear fixed arms 5 are equidistantly installed around the outer perimeter of the fixed ring 2 and the sliding ring 3, respectively. Threaded screws 6 are welded to the rear ends of both the upper and lower front fixed arms 4. The rear ends of the two threaded screws 6 pass through the corresponding upper and lower rear fixed arms 5, and each threaded screw 6 is equipped with an adjusting nut 7, which can be used to adjust the front and rear positions of the sliding ring 3. Each of the outer sides of the front fixed arm 4 has a rearward swinging arm 8 mounted on a rotating shaft, and each front swinging arm 8 has a front pulley 9 mounted on its end. Each of the outer sides of the rear fixed arm 5 has a forward swinging arm 10 mounted on a rotating shaft, and each rear swinging arm 10 has a rear pulley 11 mounted on its end. A rotating shaft is mounted at the center of each of the front and rear swinging arms 8, and the rotating shafts between the corresponding front and rear swinging arms are connected by a fixed connecting rod 12. The cylindrical pipe robot 1 adopts existing pipe cleaning robot technology, using a rotating roller brush for cleaning at the front end and a propeller propulsion power unit for driving at the rear end.
[0013] The method of using this utility model is as follows: The cylindrical pipe robot 1 is placed in the pipe inlet or after maintenance. By rotating the adjusting nut 7, the sliding ring 3 at the rear end is pushed forward. At this time, the length of the fixed connecting rod 12 remains unchanged, while the front swing arm 8 and the rear swing arm 9 are both restricted by the length of the fixed connecting rod 12 and rotate outward, so that the front pulley 9 and the rear pulley 11 expand outward to match the inner diameter of the pipe to be cleaned.
[0014] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary in all respects, and thus equivalent variations within the same scope are included within the scope of this invention.
Claims
1. A support mechanism for a municipal pipeline cleaning robot, comprising a cylindrical pipeline robot (1), a fixed ring (2), a sliding ring (3), a front fixed arm (4), a rear fixed arm (5), a threaded screw (6), an adjusting nut (7), a front swing arm (8), a front pulley (9), a rear swing arm (10), a rear pulley (11), and a fixed connecting rod (12), characterized in that: A fixed ring (2) is welded to the front end of the cylindrical pipe robot (1), and a sliding ring (3) is installed at the rear end of the cylindrical robot (1). Four front fixed arms (4) and four rear fixed arms (5) are installed at equal intervals around the outer sides of the fixed ring (2) and the sliding ring (3). Threaded screws (6) are welded to the rear ends of the upper and lower front fixed arms (4). The rear ends of the upper and lower threaded screws (6) pass through the corresponding rear ends of the upper and lower rear fixed arms (5), and adjusting nuts (7) are installed at the ends of the threaded screws (6). The sliding ring (3) can be adjusted by adjusting the nut (7). The front fixed arm (4) is equipped with a rear swing arm (8) that swings backward through a rotating shaft, and the front swing arm (8) is equipped with a front pulley (9) at the end. The rear fixed arm (5) is equipped with a rear swing arm (10) that swings forward through a rotating shaft, and the rear swing arm (10) is equipped with a rear pulley (11) at the end. The center of the front swing arm (8) and the rear swing arm (10) is equipped with a rotating shaft, and the rotating shaft between the corresponding front and rear swing arms is connected by a fixed connecting rod (12).
2. The municipal pipeline cleaning robot support mechanism according to claim 1, characterized in that: The cylindrical pipe robot (1) adopts existing pipe cleaning robot technology, with a rotating roller brush used for cleaning at the front end and a propeller propulsion power unit used for driving at the rear end.