A municipal pipe maintenance device

By using a conical pusher and an internal pipe support mechanism, the stability and cleaning efficiency issues of municipal pipeline cleaning equipment when faced with large pieces of garbage and changes in pipe diameter are solved, achieving efficient and stable pipeline cleaning results.

CN224495379UActive Publication Date: 2026-07-14

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Filing Date
2025-07-25
Publication Date
2026-07-14

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Abstract

The utility model discloses a kind of municipal pipeline maintenance devices, it is related to municipal pipeline maintenance equipment technical field, and it includes: pipeline inside scraping mechanism, the pipeline inside scraping mechanism includes main cylinder, one end of the main cylinder is fixedly connected with conical push barrel, the side surface of the conical push barrel is fixedly connected with connecting hook, the outside annular equidistance of the main cylinder is provided with several groups of first through-hole and second through-hole;In the utility model, conical push barrel at front end can effectively prop open pipeline space and push away bulky garbage in traction movement, open up passageway for cleaning operation, simultaneously, internal pipeline cleaning mechanism is pressurized by liquid pump, and high-pressure cleaning fluid is distributed to multiple cleaning spray heads arranged in annular by liquid distribution disc, high-pressure water flow is directly and uniformly injected to the periphery of pipeline inner wall through second through-hole, to realize the efficient, all-around flushing cleaning of municipal pipeline internal adhering dirt.
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Description

Technical Field

[0001] This utility model relates to the technical field of municipal pipeline maintenance equipment, specifically a municipal pipeline maintenance device. Background Technology

[0002] Municipal pipelines (such as sewers and storm drains) are an important part of urban infrastructure, and their internal cleaning and maintenance are crucial for ensuring smooth drainage, preventing blockages, and protecting the environment. Currently, high-pressure water jet cleaning technology is commonly used for municipal pipeline maintenance, which uses nozzles to spray high-pressure water streams to flush away dirt from the pipe walls.

[0003] However, existing technologies have some shortcomings: First, when entering pipes with severe sludge buildup, especially in the presence of large pieces of solid waste (such as plastic bags, rags, etc.), conventional nozzles or cleaning heads lack effective pushing and spreading structures, making them easily blocked or entangled by the waste. This prevents the equipment from moving forward or limits the cleaning effect, often requiring manual pre-cleaning or repeated attempts, resulting in low efficiency. Second, many pipe cleaning devices are prone to displacement, vibration, or even jamming in pipes with varying diameters or slight deformations, making it difficult to maintain a stable posture. This not only affects the precise spraying of high-pressure water and the cleaning coverage effect but may also damage the equipment or the inner wall of the pipe. It is also difficult to adapt to different pipe diameters or irregular undulations of the inner wall of the pipe, resulting in unstable support or poor contact. These shortcomings restrict the efficiency and quality of pipe maintenance operations. Therefore, a municipal pipe maintenance device is provided to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a municipal pipeline maintenance device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a municipal pipeline maintenance device, comprising:

[0006] The pipe internal scraping mechanism includes a main cylinder, a conical pusher fixedly connected to one end of the main cylinder, a connecting hook fixedly connected to the side of the conical pusher, a number of first through holes and second through holes equidistantly opened on the outer side of the main cylinder, and three sets of rotating grooves opened at the other end of the main cylinder.

[0007] The pipe internal support mechanism is located inside the main cylinder and is used to provide support for the pipe internal scraping mechanism inside the municipal pipeline.

[0008] A pipe cleaning mechanism is installed inside the main cylinder and is used to continuously spray water to the outside of the main cylinder to clean the inside of the municipal pipe.

[0009] As a further embodiment of this utility model: the pipeline cleaning mechanism includes a liquid pump, the inlet end of the liquid pump is fixedly connected to a telescopic hose, the outlet end of the telescopic hose is fixedly connected to a liquid distribution plate, and the outlet end of the liquid distribution plate is fixedly connected to a plurality of cleaning nozzles.

[0010] As a further embodiment of this utility model: the pipe internal support mechanism includes an electric telescopic rod, which is embedded inside a conical push barrel. A movable disk is fixedly connected to the movable end of the electric telescopic rod. Several sets of first rotating arms are rotatably connected to the outer side of the movable disk in a ring. A sliding cylinder is rotatably connected to the other end of the first rotating arm. A spring groove is provided on the inner side of the sliding cylinder. A support rod extending through to the top of the sliding cylinder is provided on the inner side of the spring groove. A first roller is rotatably connected to the top of the support rod. A support disk is fixedly connected to the outer side of the support rod in the spring groove. A first support spring is sleeved on the inner side of the support rod in the spring groove. A rod sliding groove is provided below the spring groove. A set of second rotating arms is rotatably connected to the inner side of each set of rotating grooves. A set of second support springs is fixedly connected between each set of second rotating arms and the liquid pump. A second roller is rotatably connected to the side of the second support spring.

[0011] As a further embodiment of this utility model: the liquid pump is fixedly connected to the side of the main cylinder where the rotating groove is provided, and the telescopic hose is connected to an external liquid inlet pipe.

[0012] As a further improvement of this utility model: the number of cleaning nozzles is adapted to the number of second through holes, and each set of cleaning nozzles is fixedly connected to the inner side of the second through hole at the corresponding position.

[0013] As a further improvement of this utility model: the number of sliding cylinders is adapted to the number of first through holes, and each set of sliding cylinders slides inside the first through hole at the corresponding position.

[0014] As a further embodiment of this utility model: the two ends of the first support spring are respectively fixedly connected to the bottom wall of the spring groove below the support plate.

[0015] As a further embodiment of this utility model: the rod groove is adapted to the support rod, the support rod slides inside the rod groove below, the support plate is adapted to the spring groove, and the support plate slides inside the spring groove.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. In this utility model, the conical pusher at the front end can effectively open up the pipe space and push away large pieces of garbage during traction and movement, opening up a channel for cleaning operations. At the same time, the internal pipe cleaning mechanism pressurizes the liquid pump, and the high-pressure cleaning liquid is distributed by the liquid distribution plate to multiple cleaning nozzles arranged in a ring. The high-pressure water flow is directly and evenly sprayed onto the inner wall of the pipe through the second through hole, realizing efficient and all-round flushing and cleaning of the dirt attached to the inside of the municipal pipe.

[0018] 2. In this utility model, the pipe internal support mechanism drives the moving disc through an electric telescopic rod, which in turn pushes the sliding cylinder radially outward through the first rotating arm, thereby pushing out the support rod with the first roller to press against the pipe wall. The first support spring, in conjunction with the support rod, can adapt to the undulations of the pipe wall to ensure stable contact force. The second rotating arm and the second roller at the rear end provide auxiliary support points. This mechanism enables the device to be firmly supported and positioned in complex pipes, preventing operational deviation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a structural schematic diagram of the present invention from a second perspective;

[0021] Figure 3 This is a side sectional view of the main cylinder in this utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the sliding cylinder in this utility model;

[0023] Figure 5 This is a schematic diagram of the pipe cleaning mechanism in this utility model.

[0024] In the diagram: 1. Internal pipe scraping mechanism; 2. Internal pipe support mechanism; 3. Pipe cleaning mechanism; 11. Main cylinder; 12. Conical pusher; 13. Connecting hook; 14. First through hole; 15. Second through hole; 16. Rotating groove; 21. Electric telescopic rod; 22. Moving disc; 23. First rotating arm; 24. Sliding cylinder; 25. Spring groove; 26. Support rod; 27. First roller; 28. Support disc; 29. ​​First support spring; 210. Rod slide groove; 211. Second rotating arm; 212. Second support spring; 213. Second roller; 31. Liquid pump; 32. Telescopic hose; 33. Liquid distribution disc; 34. Cleaning nozzle. Detailed Implementation

[0025] 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.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0027] Reference Figures 1 to 5 In this embodiment of the utility model, a municipal pipeline maintenance device includes:

[0028] The pipe internal scraping mechanism 1 includes a main cylinder 11, a conical pusher 12 fixedly connected to one end of the main cylinder 11, a connecting hook 13 fixedly connected to the side of the conical pusher 12, a number of first through holes 14 and second through holes 15 are circumferentially and equidistantly opened on the outer side of the main cylinder 11, and three sets of rotating grooves 16 are opened at the other end of the main cylinder 11.

[0029] Pipeline internal support mechanism 2 is installed inside the main cylinder 11 and is used to provide support for pipeline internal scraping mechanism 1 inside the municipal pipeline.

[0030] Pipe cleaning mechanism 3 is installed inside the main cylinder 11. Pipe cleaning mechanism 3 is used to continuously spray water to the outside of the main cylinder 11 to clean the inside of the municipal pipeline.

[0031] The scraping mechanism 1 inside the pipe is pulled into the pipe by the traction rope attached to the connecting hook 13, and the conical pusher 12 leads the way, pushing away larger pieces of garbage.

[0032] The pipeline cleaning mechanism 3 includes a liquid pump 31. A telescopic hose 32 is fixedly connected to the inlet end of the liquid pump 31. The liquid pump 31 is fixedly connected to the side of the main cylinder 11 where a rotating groove 16 is provided. The telescopic hose 32 is connected to an external liquid inlet pipe. A liquid distribution plate 33 is fixedly connected to the outlet end of the telescopic hose 32. Several sets of cleaning nozzles 34 are fixedly connected to the outlet end of the liquid distribution plate 33. The number of cleaning nozzles 34 is matched with the number of second through holes 15, and each set of cleaning nozzles 34 is fixedly connected to the inner side of the second through hole 15 at the corresponding position.

[0033] The liquid pump 31 draws in external cleaning liquid through the telescopic hose 32 and pressurizes it. The pressurized cleaning liquid flows into the liquid distribution plate 33 for flow distribution, and is then delivered to several sets of cleaning nozzles 34 connected to the liquid outlet of the liquid distribution plate 33. The cleaning nozzles 34 spray the high-pressure cleaning liquid through the second through hole 15 fixedly connected to them onto the inner wall of the pipe to achieve cleaning.

[0034] The pipe internal support mechanism 2 includes an electric telescopic rod 21, which is embedded inside the conical push barrel 12. The movable end of the electric telescopic rod 21 is fixedly connected to a movable disk 22. Several sets of first rotating arms 23 are rotatably connected to the outer side of the movable disk 22 in a ring shape. The other end of the first rotating arm 23 is rotatably connected to a sliding cylinder 24. The number of sliding cylinders 24 is adapted to the number of first through holes 14, and each set of sliding cylinders 24 slides inside the corresponding first through hole 14. A spring groove 25 is opened inside the sliding cylinder 24. A support rod 26 is opened inside the spring groove 25 and extends through to the top of the sliding cylinder 24. A first roller 27 is rotatably connected above the support rod 26. The outer side of the support rod 26 is fixed inside the spring groove 25. A support plate 28 is connected, and a support rod 26 is fitted with a first support spring 29 inside the spring groove 25. The two ends of the first support spring 29 are fixedly connected to the bottom of the support plate 28 and the bottom wall of the spring groove 25, respectively. A rod sliding groove 210 is opened below the spring groove 25. The rod sliding groove 210 is adapted to the support rod 26, and the support rod 26 slides inside the rod sliding groove 210. The support plate 28 is adapted to the spring groove 25, and the support plate 28 slides inside the spring groove 25. A set of second rotating arms 211 is rotatably connected inside each set of rotating grooves 16. A set of second support springs 212 is fixedly connected between each set of second rotating arms 211 and the liquid pump 31. A second roller 213 is rotatably connected to the side of the second support spring 212.

[0035] The extension and retraction of the electric telescopic rod 21 drives the movable disk 22 fixed at its movable end to move along the axis. When the movable disk 22 moves, it drives the first rotating arms 23, which are distributed in a ring, to rotate around their hinge points with the movable disk 22. The rotation of the first rotating arms 23 pushes the sliding cylinder 24, which is rotatably connected to it, to slide radially within the corresponding first through hole 14. When the sliding cylinder 24 slides outward, it pushes the support rod 26 inside it to extend upward. The support rod 26 pushes the first roller 27 at the top to press against the inner wall of the pipe. When the inner wall of the pipe is uneven, the pressure on the first roller 27 will act on the support rod 26. The support rod 26 overcomes the elastic force of the first support spring 29 and slides downward within the rod groove 210, supporting... The disc 28 compresses the first support spring 29, allowing the support rod 26 to adapt to the undulations of the pipe wall. The first roller 27 always provides elastic support force. At the same time, at the other end of the main cylinder 11, the second support spring 212 constrains the second rotating arm 211 when it is not in operation. If a larger support surface or contact is required during operation, the second rotating arm 211 can rotate around the rotating groove 16. The second roller 213 contacts the pipe wall to provide auxiliary support points. When it needs to be retracted, the electric telescopic rod 21 moves in the opposite direction, pulling the moving disc 22, causing the first rotating arm 23 to pull the sliding cylinder 24 radially inward, thereby driving the support rod 26 and the first roller 27 to retract. At the same time, the second rotating arm 211 resets under the action of the second support spring 212.

[0036] The working principle of this utility model is as follows: During operation, the traction rope is tied to the connecting hook 13 on the side of the conical pusher 12, and the entire device is pulled into the municipal pipeline by external traction force. When the device moves in the pipeline, the conical pusher 12 at the front end first contacts the inner wall of the pipeline and the accumulated objects. Its conical structure can effectively open up the space and push or squeeze out large pieces of garbage (such as plastic bags, rags, etc.) in the pipeline, thus opening up a channel for subsequent cleaning operations.

[0037] When the device is pulled to the section of pipe that needs cleaning, the pipe support mechanism 2 is activated, and the electric telescopic rod 21 begins to extend, pushing the movable disk 22, which is fixedly connected to its movable end, to move away from the conical pusher 12. The movement of the movable disk 22 causes several sets of first rotating arms 23, which are distributed in a ring at equal intervals, to rotate around their hinge points with the movable disk 22. The rotation of the first rotating arms 23 then pushes the sliding cylinder 24, which is rotatably connected to it, to slide radially outward in the corresponding first through hole 14. When the sliding cylinder 24 moves outward, it pushes the support rod 26 inside it to extend upward, so that the first roller 27 at the top of the support rod 26 presses against the inner wall of the pipe. At the same time, on the other side of the main cylinder 11... At one end, the second rotating arm 211 can rotate around the rotating groove 16 during the movement or support of the device, and the second roller 213 at its end also contacts the inner wall of the pipe. If the inner wall of the pipe is not smooth, the pressure on the first roller 27 will cause the support rod 26 to overcome the elastic force of the first support spring 29 and slide downward in the rod groove 210. The support plate 28 compresses the first support spring 29, thereby providing elastic support force to ensure that the first roller 27 always effectively contacts the pipe wall. The second support spring 212 assists in constraining and resetting the second rotating arm 211. In this way, through the combined action of the first roller 27 and the second roller 213, the device is stably supported and positioned inside the pipe.

[0038] After the device is positioned, the pipeline cleaning mechanism 3 is activated. The liquid pump 31 draws in cleaning liquid (usually water or cleaning fluid) from the external inlet pipe through the telescopic hose 32 and pressurizes the liquid. The pressurized cleaning liquid is then transported to the distribution plate 33 through the telescopic hose 32. The distribution plate 33 evenly distributes the high-pressure liquid and then delivers it to several sets of cleaning nozzles 34 that are fixedly connected to their outlet ends. These cleaning nozzles 34 are fixedly installed inside the corresponding second through holes 15. Therefore, the high-pressure cleaning liquid is directly sprayed onto the inner wall of the pipeline through the second through holes 15. The continuously sprayed high-pressure water jet impacts and removes sludge, grease, biofilm and other dirt adhering to the pipe wall, thus cleaning the inner wall of the pipeline. After the cleaning operation is completed, the liquid pump 31 is stopped, and the device can be pulled out of the pipeline by the traction rope.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A municipal pipeline maintenance device, characterized in that, include: The pipe internal scraping mechanism (1) includes a main cylinder (11), one end of the main cylinder (11) is fixedly connected to a conical pusher (12), the side of the conical pusher (12) is fixedly connected to a connecting hook (13), the outer side of the main cylinder (11) is provided with several sets of first through holes (14) and second through holes (15) at equal intervals, and the other end of the main cylinder (11) is provided with three sets of rotating grooves (16). Pipeline internal support mechanism (2), the pipeline internal support mechanism (2) is set inside the main cylinder (11), the pipeline internal support mechanism (2) is used to provide support for the pipeline internal scraping mechanism (1) inside the municipal pipeline; Pipe cleaning mechanism (3) is installed inside the main cylinder (11). The pipe cleaning mechanism (3) is used to continuously spray water to the outside of the main cylinder (11) to clean the inside of the municipal pipeline.

2. The municipal pipeline maintenance device according to claim 1, characterized in that, The pipeline cleaning mechanism (3) includes a liquid pump (31), the inlet end of the liquid pump (31) is fixedly connected to a telescopic hose (32), the outlet end of the telescopic hose (32) is fixedly connected to a liquid distribution plate (33), and the outlet end of the liquid distribution plate (33) is fixedly connected to several sets of cleaning nozzles (34).

3. A municipal pipeline maintenance device according to claim 2, characterized in that, The pipe internal support mechanism (2) includes an electric telescopic rod (21), which is embedded inside the conical push barrel (12). The movable end of the electric telescopic rod (21) is fixedly connected to a movable disk (22). Several sets of first rotating arms (23) are rotatably connected to the outer side of the movable disk (22) in a ring. The other end of the first rotating arm (23) is rotatably connected to a sliding cylinder (24). A spring groove (25) is provided on the inner side of the sliding cylinder (24). A support rod (26) is provided on the inner side of the spring groove (25) and extends through to the top of the sliding cylinder (24). The upper part of the support rod (26) The first roller (27) is rotatably connected to the support rod (26). The support rod (26) is fixedly connected to the spring groove (25) on the outside. The first support spring (29) is sleeved on the inside of the spring groove (25). The rod slide groove (210) is opened below the spring groove (25). A set of second rotating arms (211) is rotatably connected to the inside of each set of rotating grooves (16). A set of second support springs (212) is fixedly connected between each set of second rotating arms (211) and the liquid pump (31). The second roller (213) is rotatably connected to the side of the second support spring (212).

4. A municipal pipeline maintenance device according to claim 2, characterized in that, The liquid pump (31) is fixedly connected to one side of the main cylinder (11) where the rotating groove (16) is provided, and the telescopic hose (32) is connected to an external liquid inlet pipe.

5. A municipal pipeline maintenance device according to claim 2, characterized in that, The number of cleaning nozzles (34) is matched with the number of second through holes (15), and each set of cleaning nozzles (34) is fixedly connected to the inside of the second through hole (15) at the corresponding position.

6. A municipal pipeline maintenance device according to claim 3, characterized in that, The number of sliding cylinders (24) is adapted to the number of first through holes (14), and each set of sliding cylinders (24) slides inside the first through hole (14) at the corresponding position.

7. A municipal pipeline maintenance device according to claim 3, characterized in that, The two ends of the first support spring (29) are fixedly connected to the bottom wall of the spring groove (25) below the support plate (28).

8. A municipal pipeline maintenance device according to claim 3, characterized in that, The rod groove (210) is adapted to the support rod (26), and the support rod (26) slides inside the rod groove (210) below. The support plate (28) is adapted to the spring groove (25), and the support plate (28) slides inside the spring groove (25).