Pipeline cleaning device for repairing pipeline through trenchless spiral winding method

Abstract

The utility model relates to the technical field of pipeline repairing, in particular to a pipeline cleaning device for repairing a pipeline through a trenchless spiral winding method. The device comprises a cleaning mechanism, pushing discs, a supporting advancing mechanism and a water inlet pipe which are sequentially arranged from front to back, the supporting advancing mechanism is used for being supported on the inner wall of a pipeline and driving the water inlet pipe to advance, and the pushing discs are arranged at the front end of the supporting advancing mechanism at intervals through connecting structures and used for pushing impurities on the inner wall of the pipeline to move forwards. The cleaning mechanism comprises a water spraying pipe and a cleaning brush which are arranged at the front end of the pushing disc, the water spraying pipe communicates with the water inlet pipe and is used for spraying water to the inner wall of the pipeline, and the periphery of the cleaning brush is used for being attached to the inner wall of the pipeline to brush the inner wall of the pipeline. The supporting advancing mechanism is used for driving the water inlet pipe to advance in the length direction of the pipeline, the cleaning mechanism is used for improving the impurity cleaning effect, the pushing disc is used for pushing impurities to move forwards, impurity accumulation is avoided, the cleaning process is prevented from being hindered, and the pipeline cleaning quality is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of pipeline repair technology, specifically to a pipeline cleaning device for repairing pipelines using a trenchless spiral winding method. Background Technology

[0002] Trenchless spiral winding is an advanced technology for repairing underground pipelines. It mainly involves spirally winding strip materials to form a new liner inside the old pipeline without the need for large-scale excavation of the ground.

[0003] Before repairing pipelines using the trenchless spiral winding method, the interior of the broken pipeline needs to be cleaned to remove impurities from the inner wall, thereby ensuring the quality of subsequent pipeline repair and improving construction efficiency. In existing technologies, a water inlet pipe is often installed at the rear end of the pipeline. High-pressure water is directly injected into the pipeline through this inlet pipe to flush the inner wall and carry impurities out from the front end, thus cleaning the deposited impurities inside the pipeline.

[0004] However, since the water inlet pipe is located at the rear end of the pipeline, the cleaning effect of high-pressure water will gradually decrease as the pipeline length increases, making it difficult to effectively clean impurities from the inner wall of the pipeline. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a pipeline cleaning device for repairing pipelines using a trenchless spiral winding method. It utilizes a support and travel mechanism to drive the inlet pipe along the length of the pipeline, a cleaning mechanism to improve the cleaning effect of impurities, and a pusher plate to push impurities forward, avoiding the accumulation of impurities that hinders the cleaning process and ensuring the quality of pipeline cleaning.

[0006] To address the aforementioned technical problems, this utility model provides a pipe cleaning device for repairing pipes using a trenchless spiral winding method. The device comprises a cleaning mechanism, a pushing disc, a supporting and traveling mechanism, and a water inlet pipe arranged sequentially from front to back. The supporting and traveling mechanism supports the inner wall of the pipe and drives the water inlet pipe forward. The pushing disc is spaced at the front end of the supporting and traveling mechanism via a connecting structure and is used to push impurities on the inner wall of the pipe forward. The cleaning mechanism includes a water spray pipe and a cleaning brush located at the front end of the pushing disc. The water spray pipe is connected to the water inlet pipe and is used to spray water onto the inner wall of the pipe. The outer periphery of the cleaning brush is used to adhere to the inner wall of the pipe to scrub it.

[0007] Furthermore, the supporting travel mechanism includes a supporting column with a water passage. The water inlet pipe is connected to the spray pipe through the water passage. The supporting column is equipped with a supporting telescopic mechanism and a travel mechanism. The supporting telescopic mechanism is used to support the inner wall of the pipe and can change the outer diameter. The travel mechanism includes multiple sets of travel wheels arranged on the supporting column. The multiple sets of travel wheels are arranged in a circular array along the pipe axis.

[0008] Furthermore, the support telescopic mechanism includes a support airbag and an inflation tube. The support airbag is sleeved on the outside of the support column, and the front end of the inflation tube is connected to the support airbag.

[0009] Furthermore, two sets of support airbags are arranged at intervals along the axis of the support column, and the two support airbags are connected by a connecting air pipe. The inflation pipe is connected to one of the support airbags, and the traveling mechanism is arranged between the two support airbags.

[0010] Furthermore, the support column has a mounting countersunk hole extending radially at the position corresponding to the travel wheel. A telescopic structure is provided in the mounting countersunk hole, and the travel wheel is located at the outer end of the telescopic structure. The telescopic structure drives the travel wheel to move radially along the pipeline.

[0011] Furthermore, the push plate is provided with a rotating mechanism, and the cleaning brush is rotatably mounted on the push plate along the pipe axis via the rotating mechanism.

[0012] Furthermore, the water spray pipe includes an outer pipe and an inner pipe arranged coaxially. The front ends of the outer pipe and the inner pipe are sealed and fixed. A water-passing ring is formed between the outer pipe and the inner pipe. The outer pipe is provided with multiple water spray holes. The center of the push plate is provided with an installation through hole. The rear end of the outer pipe is rotatably sealed with the front end of the installation through hole, and the rear end of the inner pipe is rotatably sealed with the rear end of the installation through hole. The rear end of the push plate is provided with a water inlet hole, and the inside of the push plate is provided with a water inlet channel. The water inlet channel connects the water inlet hole and the water-passing ring. The water inlet pipe is connected to the water inlet hole. The cleaning brush is mounted on the outer pipe by a support rod. The rotating mechanism includes a rotating motor mounted on the rear end of the push plate. The rotating shaft of the rotating motor is anti-rotationally fitted with the inner hole of the inner pipe.

[0013] Furthermore, two sets of water spray holes are symmetrically arranged radially along the water spray pipe, and two sets of cleaning brushes are symmetrically arranged radially along the water spray pipe. The line connecting the two sets of water spray pipes is arranged orthogonally to the connection of the two cleaning brushes.

[0014] Furthermore, a spray head is provided on the water spray hole, and the outer end of the spray head is an outwardly expanding funnel shape.

[0015] Furthermore, the connection structure includes a connecting cylinder that extends along the pipeline axis and has a pusher plate and a support travel mechanism connected to its two ends, respectively.

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

[0017] (1) By using the support travel mechanism, the water inlet pipe can be driven to travel along the length of the pipe, which can effectively avoid the situation that the cleaning effect of high pressure water will deteriorate as the length of the pipe increases, and ensure that the pipe of different lengths has a good cleaning effect. By using the spray pipe and cleaning brush, the water in the water inlet pipe can be sprayed onto the inner wall of the pipe and the inner wall of the pipe can be brushed at the same time, ensuring effective cleaning of impurities on the inner wall of the pipe and improving the impurity cleaning effect. By using the push plate, the impurities that fall on the inner wall of the pipe can be pushed forward, avoiding the accumulation of impurities that hinder the cleaning process, ensuring the continuity of the entire cleaning process, improving the quality of pipe cleaning, improving the quality of subsequent pipe repair and construction efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a pipe cleaning device for repairing pipes using a non-excavation spiral winding method, according to Embodiment 1 of this utility model.

[0019] Figure 2 This is a schematic diagram of the supporting travel mechanism and the water inlet pipe in Embodiment 1 of this utility model.

[0020] Figure 3 This is a cross-sectional view of the supporting travel mechanism and the water inlet pipe in Embodiment 1 of this utility model.

[0021] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0022] Figure 5 This is a schematic diagram of the cleaning mechanism and pusher plate in Embodiment 1 of this utility model.

[0023] Figure 6 This is a cross-sectional view of the cleaning mechanism and the pusher plate in Embodiment 1 of this utility model.

[0024] Figure 7 This is a side view of the water spray pipe in Embodiment 1 of this utility model.

[0025] Figure 8 This is a schematic diagram of the cleaning brush in Embodiment 1 of this utility model.

[0026] Figure 9 This is a cross-sectional view of the cleaning mechanism and the pusher plate in Embodiment 2 of this utility model.

[0027] Figure 10 This is a side view of the cleaning mechanism and push plate (hidden front cover) in Embodiment 2 of this utility model.

[0028] Figure 11 This is a side view of the support telescopic mechanism in Embodiment 3 of this utility model.

[0029] In the diagram: 1. Water inlet pipe; 2. Supporting travel mechanism; 21. Support column; 211. Mounting countersunk hole; 22. Water passage; 23. Supporting telescopic mechanism; 231. Supporting airbag; 232. Inflation pipe; 233. Connecting air pipe; 24. Traveling mechanism; 241. Traveling wheel; 242. Telescopic cylinder; 243. Telescopic cylinder body; 244. Telescopic rod;

[0030] 3. Cleaning mechanism; 31. Spray pipe; 311. Outer pipe; 312. Inner pipe; 313. Water ring; 314. Spray hole; 315. Spray head; 316. Outer end plate;

[0031] 32. Cleaning brush; 321. Cleaning board; 322. Cleaning pad; 33. Support rod;

[0032] 4. Push plate; 41. Water inlet channel; 42. Water inlet hole; 43. Cover plate; 44. Mounting through hole;

[0033] 5. Rotating motor; 51. Rotating shaft;

[0034] 6. Connecting cylinder; 7. Telescopic water hose; 8. Retaining ring;

[0035] 9. Front cover; 10. Rear cover; 11. External gear ring; 12. Internal gear; 13. Rotating groove; 14. Drive motor; 15. Motor shaft; 16. Rotating shaft; 17. Bearing;

[0036] 171. Mounting hole; 18. Support cylinder; 19. Support plate. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings: Specific Implementation Example 1:

[0039] like Figure 1 As shown, in this embodiment, the axial direction of the water inlet pipe 1 is the front-to-back direction, and the cleaning mechanism 3 is located in front of the supporting travel mechanism 2. Similarly, the axial direction of the pipe to be cleaned is the front-to-back direction.

[0040] refer to Figures 1 to 8This utility model discloses a trenchless spiral winding method for repairing pipes and a pipe cleaning device (hereinafter referred to as the cleaning device). The device comprises a cleaning mechanism 3, a pushing disc 4, a supporting and traveling mechanism 2, and a water inlet pipe 1, arranged sequentially from front to back. The supporting and traveling mechanism 2 supports the inner wall of the pipe and drives the water inlet pipe 1 within the pipe. The pushing disc 4 is spaced at the front end of the supporting and traveling mechanism 2 via a connecting structure. The pushing disc 4 pushes impurities on the inner wall of the pipe forward. The cleaning mechanism 3 includes a water spray pipe 31 and a cleaning brush 32 located at the front end of the pushing disc 4. The water spray pipe 31 is connected to the water inlet pipe 1, supplying water to the water spray pipe 31. The water spray pipe 31 sprays water onto the inner wall of the pipe. The outer periphery of the cleaning brush 32 is attached to the inner wall of the pipe to scrub it.

[0041] Specifically, in this embodiment, such as Figure 2 , 3 As shown in Figure 4, the supporting travel mechanism 2 includes a supporting column 21, which comprises a cylindrical structure at the front and a frustum structure at the rear. The axis of the supporting column 21 coincides with the axis of the water inlet pipe 1. A water passage 22 is formed inside the supporting column 21, through which the water inlet pipe 1 connects to the spray pipe 31. The supporting column 21 is equipped with a supporting telescopic mechanism 23 and a traveling mechanism 24. The supporting telescopic mechanism 23 is used to support the inner wall of the pipe and can change its outer diameter. The traveling mechanism 24 includes multiple sets of traveling wheels 241 arranged on the supporting column 21. The multiple sets of traveling wheels 241 are arranged in a circular array along the pipe axis. In this embodiment, four sets of traveling wheels 241 are arranged in an array along the pipe axis. Of course, in other embodiments, three sets, six sets, etc., can also be arranged in an array.

[0042] When the cleaning device moves to the position to be cleaned, the support telescopic mechanism 23 extends outward, expanding its outer diameter. The support force is adjusted according to the pipe's inner diameter, ensuring the support telescopic structure is stably supported on the pipe's inner wall. The cleaning device's position is fixed, and then the cleaning mechanism 3 performs the cleaning. This prevents the cleaning device's position from changing under water pressure, ensuring effective cleaning. After cleaning at this position is completed, the support telescopic mechanism 23 retracts, and the traveling wheel 241 propels the cleaning device to the next position to be cleaned, ensuring the orderly progress of the cleaning work.

[0043] Preferably, in this embodiment, the support telescopic mechanism 23 includes a support airbag 231 and an inflation tube 232, wherein the support airbag 231 is sleeved on the outside of the support column 21, the front end of the inflation tube 232 is connected to the support airbag 231, the rear end of the inflation tube 232 is connected to an external inflation device, and the tube body of the inflation tube 232 is attached to the water inlet pipe 1 and fixed by a fixing ring 8.

[0044] The support airbag 231 is flexible and adaptable, allowing it to fit snugly against the inner wall of the pipe, providing stable support and preventing damage to the pipe's inner wall. In practical use, the support airbag 231 can also be used to seal the pipe, preventing impurities from entering the cleaned pipe section with the water flow, ensuring cleaning effectiveness. The support airbag 231 also allows for easy control of the support force and outer diameter, adapting to pipes of different inner diameters. When the support is complete and movement is needed, the inflation device stops inflating, and the support airbag 231 retracts. Simultaneously, the inflation device can be used to deflate the support airbag 231, causing it to detach from the inner wall of the pipe, preventing friction damage between the support airbag 231 and the inner wall during movement.

[0045] Specifically, in this embodiment, two sets of support airbags 231 are arranged at intervals along the axis of the support column 21. The two support airbags 231 are connected by connecting air pipes 233. Multiple connecting air pipes 233 are arranged in a circular array along the axis of the support column 21 to ensure that the two support airbags 231 can be inflated simultaneously. The inflation pipe 232 is connected to the rear support airbag 231.

[0046] Specifically, in this embodiment, the supporting airbag 231 is made of neoprene rubber. This material has wear-resistant and puncture-resistant properties, ensuring the service life of the pipeline. Simultaneously, the surface of this material has a certain degree of friction, ensuring that the supporting airbag 231 does not easily slide inside the pipeline after inflation. Of course, in other embodiments, the supporting airbag 231 can also be made of nitrile rubber, which has wear resistance, puncture resistance, and a high coefficient of surface friction. In other embodiments, to ensure the friction of the supporting airbag 231, anti-slip structures such as anti-slip grooves can be provided on the outer surface of the supporting airbag 231. Many specific anti-slip structures exist, which are common knowledge to those skilled in the art and will not be elaborated upon here.

[0047] Preferably, in this embodiment, the traveling mechanism 24 is disposed between the two supporting airbags 231, and two sets of traveling mechanisms 24 are arranged at intervals along the front-back direction. During the travel process, the two sets of traveling mechanisms 24 are used for support to ensure the stable travel state of the cleaning device.

[0048] Specifically, such as Figure 4 As shown, each support column 21 has a radially extending mounting countersunk hole 211 corresponding to the position of each traveling wheel 241. A telescopic structure is installed within each mounting countersunk hole 211. The traveling wheel 241 is rotatably mounted on the outer end of the telescopic structure, which drives the traveling wheel 241 to move radially along the pipe. The telescopic structure allows adjustment of the position of the traveling wheel 241, ensuring stable support against the inner wall of the pipe and enabling the cleaning device to adapt to pipes with smaller inner diameters, thus improving its applicability. Furthermore, when encountering local protrusions or obstacles within the pipe, the telescopic structure acts as a buffer, preventing significant damage to the traveling wheel 241.

[0049] Specifically, in this embodiment, the telescopic structure includes a telescopic cylinder 242 composed of a telescopic cylinder body 243 and a telescopic rod 244. A mounting groove is provided at the outer end of the telescopic rod 244, and the traveling wheel 241 is rotatably mounted in the mounting groove. In this embodiment, the traveling wheel 241 is an electric wheel. In other embodiments, the traveling wheel 241 can also be a rolling wheel, in which case an electric motor is mounted on the side of the telescopic rod 244, and the electric motor drives the traveling wheel 241 to rotate.

[0050] In other embodiments, the telescopic structure may be a sliding rod slidably disposed within the mounting countersunk hole 211. A constriction structure is provided at the upper end of the mounting countersunk hole 211, and a stop structure is provided at the lower end of the sliding rod. The stop structure and the constriction structure cooperate to prevent the sliding rod from coming out. A support spring is provided between the sliding rod and the bottom of the mounting countersunk hole 211. The travel wheel 241 is mounted on the outer end of the sliding rod. The support spring and the sliding rod cooperate to change the radial position of the travel wheel 241.

[0051] Preferably, in this embodiment, a rotating mechanism is also provided on the push plate 4, and the cleaning brush 32 is rotatably mounted on the push plate 4 along the pipe axis through the rotating mechanism.

[0052] Specifically, in this embodiment, such as Figures 5 to 7 As shown, the water spray pipe 31 includes an outer pipe 311 and an inner pipe 312 arranged coaxially. The front ends of the outer pipe 311 and the inner pipe 312 are sealed and fixed. The outer pipe 311 and the inner pipe 312 are arranged at intervals, forming a water-passing ring 313 between them. Multiple water spray holes 314 are provided on the outer pipe 311, and water is sprayed onto the inner wall of the pipe through the water spray holes 314.

[0053] The pusher plate 4 has a disc structure, the outer diameter of which is adapted to the inner diameter of the pipe, and the pusher plate 4 is arranged coaxially with the pipe. A mounting through hole 44 is provided in the center of the pusher plate 4, and a water inlet channel 41 is provided inside the pusher plate 4. The water inlet channel 41 communicates with the mounting through hole 44, so that the entire pusher plate 4 is in a cavity state.

[0054] The rear end of the outer tube 311 is rotatably sealed to the front end of the mounting through hole 44. Specifically, an annular extended end plate 316 extending outward in the circumferential direction is provided at the rear end of the outer tube 311. The outer diameter of the extended end plate 316 is adapted to the inner diameter of the front end of the mounting through hole 44. A rotary sealing structure is provided between the outer periphery of the extended end plate 316 and the front end of the mounting through hole 44, so that the water inlet channel 41 is connected to the water ring 313, while preventing water in the water inlet channel 41 from flowing out between the extended end plate 316 and the mounting through hole 44. A countersunk hole arranged coaxially with the mounting through hole 44 is provided at the front end of the pusher plate 4. A cover plate 43 is fixedly installed in the countersunk hole to block the extended end plate 316 and ensure that the water spray pipe 31 and the pusher plate 4 are coaxial.

[0055] The rear end of the inner tube 312 extends out of the outer tube 311 and extends to the rear end of the mounting through hole 44. The rear end of the inner tube 312 and the rear end of the mounting through hole 44 are rotated and sealed together. Specifically, a rotational sealing structure is provided between the outer periphery of the inner tube 312 and the rear end of the mounting through hole 44 to prevent water from flowing out between them.

[0056] A water inlet 42 is provided at the rear end of the push plate 4. The water inlet 42 is connected to the water ring 313 via the water inlet channel 41 and the mounting through hole 44. The water inlet pipe 1 is connected to the water inlet 42, allowing water in the water inlet pipe 1 to enter the spray pipe 31. The cleaning brush 32 is mounted on the outer tube 311 via the support rod 33. The rotating mechanism includes a rotating motor 5 mounted at the rear end of the push plate 4. The rotation axis of the rotating motor 5 is coaxially arranged with the mounting through hole 44, and the rotating shaft 51 of the rotating motor 5 is anti-rotationally engaged with the inner hole of the inner tube 312. With this configuration, the rotating motor 5 can drive the inner tube 312 to rotate. The fixed connection between the inner tube 312 and the outer tube 311 drives the outer tube 311 to rotate, thereby driving the cleaning brush 32 to rotate. At the same time, water is supplied to the water inlet 42 via the water inlet pipe 1. The water in the water inlet 42 enters the water ring 313 through the water inlet channel 41 and the mounting through hole 44, and is then sprayed out from the spray hole 314.

[0057] In this embodiment, the rotary sealing structure includes a sealing ring and a bearing 17. Specifically, a bearing 17 is provided between the outer end plate 316 and the front end of the mounting through hole 44 of the pusher plate 4 to support the outer tube 311 and ensure rotation. A sealing ring is provided between the front end face of the outer end plate 316 and the cover plate 43, and a sealing ring is also provided between the cover plate 43 and the pusher plate 4 to prevent water leakage. An inward opening is provided at the rear end of the mounting through hole 44. Similarly, a bearing 17 is provided between the rear end of the mounting through hole 44 and the rear end of the inner tube 312. The rear end of the inner tube 312 abuts against the front end of the inward opening, and a sealing ring is provided between the two for sealing. In other embodiments, the rotary sealing structure may also adopt a rotary joint or a dynamic sealing structure. The specific structure and installation method of the rotary joint and dynamic seal are common knowledge known to those skilled in the art and will not be described in detail here.

[0058] In this embodiment, preferably, such as Figure 1 , 6 As shown, two sets of water spray holes 314 are symmetrically arranged radially along the outer pipe 311. Each set of water spray holes 314 includes two water spray holes 314 spaced apart in the front-to-back direction. Two cleaning brushes 32 are symmetrically arranged radially along the water spray pipe 31. Each cleaning brush 32 is connected and fixed to the outer pipe 311 by two support rods 33 arranged at intervals in the front-to-back direction. Furthermore, the line connecting the two sets of water spray pipes 31 is arranged orthogonally to the line connecting the two cleaning brushes 32. This arrangement ensures that the working areas of the water spray and the cleaning brushes 32 intersect, fully covering the inner wall of the pipe and guaranteeing a cleaning effect.

[0059] Preferably, in this embodiment, a spray head 315 is also provided on the spray hole 314, and the outer end of the spray head 315 is an outwardly expanding funnel shape. The funnel-shaped spray head 315 enables the water flow to form a larger coverage area when sprayed out, and at the same time makes the water flow spray more evenly on the inner wall of the pipe.

[0060] Preferably, in this embodiment, the connection structure between the pusher plate 4 and the supporting travel mechanism 2 is a connecting cylinder 6. The connecting cylinder 6 extends along the pipeline axis, and its two ends are respectively connected to the pusher plate 4 and the supporting column 21. Two sets of connecting cylinders 6 are symmetrically arranged along the axis of the pusher plate 4. Furthermore, the water inlet 42 at the rear end of the pusher plate 4 and the front end of the water passage 22 of the supporting column 21 are connected by a telescopic water pipe 7. In actual use, after the cleaning of the area to be cleaned is completed, the connecting cylinder 6 is first activated, driving the pusher plate 4 to move forward and push the impurities of the cleaned pipe section forward. Then, the connecting cylinder 6 retracts, and the pusher plate 4 returns to its original position. When the pusher plate 4 moves, the telescopic water pipe 7 deforms to compensate for the displacement, avoiding damage from the telescopic water pipe 7. Afterward, the supporting telescopic mechanism 23 retracts, and the travel mechanism 24 then drives the entire cleaning device to move forward.

[0061] In this embodiment, as Figure 8 As shown, the cleaning brush 32 includes a cleaning plate 321 and a cleaning pad 322 disposed at the outer end of the cleaning plate 321. The flexible cleaning pad 322 is used to scrub the inner wall of the pipe, and the outer side of the cleaning pad 322 is an arc-shaped surface adapted to the inner wall of the pipe.

[0062] The working process of this application:

[0063] When it is necessary to clean the broken pipe, first connect the rear end of the water inlet pipe 1 to the water supply equipment, connect the rear end of the air inlet pipe 232 to the air inlet equipment, clean the rear end of the pipe manually first, and then place the cleaning device at the rear end of the pipe. Use the telescopic structure to support the traveling wheel 241 on the inner wall of the pipe. The traveling wheel 241 drives the cleaning device to move to the next position to be cleaned.

[0064] When the cleaning location is reached, the inflation device is activated, supporting the airbag 231 to expand and seal the inner wall of the pipe. The water supply device supplies water, which enters from the inlet pipe 1 through the water channel 22 and the telescopic water pipe 7 into the inlet hole 42 of the push plate 4, then through the inlet hole 42, the inlet channel 41, and the installation through hole 44 into the water ring 313 of the spray pipe 31, and then into the spray hole 314 before being sprayed out through the spray head 315. At the same time, the rotating motor 5 is activated, which drives the spray pipe 31 to rotate, thereby driving the cleaning brush 32 to rotate, realizing the spraying and brushing of the inner wall of the pipe.

[0065] Once the cleaning at that location is complete, the water supply equipment stops supplying water, the rotating motor 5 stops rotating, and the connecting cylinder 6 is activated. The connecting cylinder 6 drives the pushing disc 4 to move forward, pushing the impurities that have fallen onto the inner wall of the pipe forward. The impurities are pushed to the front end of the next cleaning location (that is, the impurities are pushed to the next location to be cleaned). This avoids the accumulation of impurities affecting the movement and also avoids the accumulation of impurities affecting the operation of the cleaning mechanism 3 at the next working location.

[0066] After the pusher plate 4 finishes pushing, the connecting cylinder 6 drives the pusher plate 4 to move backward to its initial position. The inflation device stops inflating, and the support airbag 231 retracts and separates from the inner wall of the pipe. At the same time, as needed, the inflation device can be used to deflate the support airbag 231, preventing it from sticking to the inner wall of the pipe. The traveling mechanism 24 is activated, and the traveling wheels 241 drive the cleaning device to the next location to be cleaned.

[0067] Repeat the above steps until the entire pipeline has been cleaned.

[0068] Meanwhile, in actual use, the radial position of each traveling wheel 241 can be adjusted by telescopic cylinder 242 to improve applicability.

[0069] The cleaning device of this utility model utilizes a supporting traveling mechanism 2 to drive the water inlet pipe 1 along the length of the pipe, effectively avoiding the situation where the cleaning effect of high-pressure water deteriorates as the pipe length increases, ensuring good cleaning effect for pipes of different lengths. Using a spray pipe 31 and a cleaning brush 32, water in the water inlet pipe 1 can be sprayed onto the inner wall of the pipe and simultaneously brushed, ensuring effective cleaning of impurities on the inner wall of the pipe and improving the impurity cleaning effect. The pusher plate 4 can push the impurities that have fallen on the inner wall of the pipe forward, avoiding the accumulation of impurities that hinder the cleaning process, ensuring the continuity of the entire cleaning process, improving the quality of pipe cleaning, and improving the quality and efficiency of subsequent pipe repair.

[0070] Example 2: This example provides a different cleaning mechanism 3 and pusher plate 4. Unlike Example 1, in this example, as... Figure 9 , 10 As shown, the push disk 4 is composed of a front cover 9 and a rear cover 10. The front cover 9 and the rear cover 10 have annular mounting grooves on their opposite sides. An external gear ring 11 is rotatably mounted in the annular mounting groove via a bearing 17. An internal gear 12 meshes and drives in the external gear ring 11. Four internal gears 12 are arranged in annular array along the axis of the external gear ring 11. A drive motor 14 is mounted at the rear end of the rear cover 10. The motor shaft 15 of the drive motor 14 extends into the annular mounting groove and engages with one of the internal gears 12 to prevent rotation. Rotating shafts 16 are mounted on the remaining internal gears 12 to prevent rotation.

[0071] The front and rear sides of the rotating shaft 16 and the motor shaft 15 extend into the annular mounting grooves of the front end cover 9 and the rear end cover 10, respectively, and are rotatably engaged with the corresponding annular mounting grooves via bearings 17. A rotating groove 13 extending to the annular mounting groove is provided on the front side of the front end cover 9 at the position corresponding to the outer gear ring 11. The radial width of the rotating groove 13 is smaller than the width of the outer gear ring 11 to prevent the outer gear ring 11 from dislodging. The inner end of the cleaning brush 32 passes through the rotating groove 13, extends to the annular rotating groove 13, and is fixed to the front side of the outer gear ring 11. In this embodiment, four cleaning brushes 32 are arranged in a circular array along the axis of the outer gear ring 11.

[0072] A perforation is provided at the center of the push plate 4. The front end of the water spray pipe 31 passes through the front cover plate 43 and is positioned between four cleaning brushes 32. The front end of the water spray pipe 31 has a funnel-shaped opening, which sprays water onto the inner wall of the pipe. The drive motor 14 drives the corresponding internal gear 12 to rotate, which in turn drives the external gear ring 11 to rotate, causing each cleaning brush 32 to rotate along the rotating groove 13, completing the rotational brushing. In other embodiments, the front end of the water spray pipe 31 is blocked. In this case, multiple water nozzles are arranged in a circular array along the axial direction at the position where the water spray pipe 31 extends out of the front cover 43, spraying water onto the inner wall of the pipe through the water nozzles.

[0073] Example 3: This example provides a different support telescopic mechanism. Unlike Example 1, in this example, as... Figure 11 As shown, multiple mounting holes 171 are arranged in an axial array on the support column 21 at positions corresponding to the support telescopic mechanism 23, and the length direction of the mounting holes 171 extends radially. Specifically, in this embodiment, six mounting holes 171 are arranged in a circular array; in other embodiments, three, four, or other mounting holes 171 may be arranged in a reverse array.

[0074] The support telescopic mechanism 23 includes support cylinders 18 and support plates 19. A set of support cylinders 18 is installed in each mounting hole 171, and the support cylinders 18 extend along the length of the mounting hole 171, with their outer ends protruding from the mounting hole 171. The support plate 19 is fixedly installed on the outer end of the support cylinder 18. The support plate 19 is an arc-shaped plate, and its outer diameter matches the inner diameter of the pipe. When support is needed, all support cylinders 18 are activated synchronously, and the support plate 19 fits against the inner wall of the pipe, achieving fixation.

[0075] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

[0076] In the description of the embodiments of this application, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, they are only for the convenience of describing this application 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 on this application. In addition, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0077] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

Claims

1. A pipe cleaning device for repairing pipes using a trenchless spiral winding method, characterized in that, The device includes a cleaning mechanism, a pusher plate, a supporting and traveling mechanism, and a water inlet pipe arranged sequentially from front to back. The supporting and traveling mechanism is used to support the inner wall of the pipe and drive the water inlet pipe forward. The pusher plate is spaced at the front end of the supporting and traveling mechanism through a connecting structure. The pusher plate is used to push impurities on the inner wall of the pipe forward. The cleaning mechanism includes a water spray pipe and a cleaning brush located at the front end of the pusher plate. The water spray pipe is connected to the water inlet pipe and is used to spray water onto the inner wall of the pipe. The outer periphery of the cleaning brush is used to adhere to the inner wall of the pipe to scrub the inner wall of the pipe.

2. The pipe cleaning device for repairing pipes using the trenchless spiral winding method according to claim 1, characterized in that, The supporting travel mechanism includes a support column with a water passage. The water inlet pipe is connected to the water spray pipe through the water passage. The support column is equipped with a support telescopic mechanism and a travel mechanism. The support telescopic mechanism is used to support the inner wall of the pipe and can change the outer diameter. The travel mechanism includes multiple sets of travel wheels arranged on the support column. The multiple sets of travel wheels are arranged in a circular array along the axis of the support column.

3. The pipe cleaning device for trenchless spiral winding pipe repair according to claim 2, characterized in that, The support telescopic mechanism includes a support airbag and an inflation tube. The support airbag is sleeved on the outside of the support column, and the front end of the inflation tube is connected to the support airbag.

4. The pipe cleaning device for trenchless spiral winding pipe repair according to claim 3, characterized in that, Two sets of support airbags are arranged at intervals along the front-back direction on the support column. The two support airbags are connected by a connecting air tube. The inflation tube is connected to one of the support airbags. The traveling mechanism is located between the two support airbags.

5. The pipe cleaning device for trenchless spiral winding pipe repair according to claim 2, characterized in that, The support column has a countersunk hole extending radially from the position of the traveling wheel. A telescopic structure is installed in the countersunk hole. The traveling wheel is located at the outer end of the telescopic structure. The telescopic structure drives the traveling wheel to move radially along the pipeline.

6. The pipe cleaning device for repairing pipes using the trenchless spiral winding method according to claim 1, characterized in that, The push plate is equipped with a rotating mechanism, and the cleaning brush is rotatably mounted on the push plate along the pipe axis through the rotating mechanism.

7. The pipe cleaning device for trenchless spiral winding pipe repair according to claim 6, characterized in that, The water spray pipe includes an outer pipe and an inner pipe arranged coaxially. The front ends of the outer pipe and the inner pipe are sealed and fixed. A water-passing ring is formed between the outer pipe and the inner pipe. The outer pipe is provided with multiple water spray holes. The center of the push plate is provided with an installation through hole. The rear end of the outer pipe is rotatably sealed with the front end of the installation through hole, and the rear end of the inner pipe is rotatably sealed with the rear end of the installation through hole. The rear end of the push plate is provided with a water inlet hole, and the inside of the push plate is provided with a water inlet channel. The water inlet channel connects the water inlet hole and the water-passing ring. The water inlet pipe is connected to the water inlet hole. The cleaning brush is mounted on the outer pipe by a support rod. The rotating mechanism includes a rotating motor mounted on the rear end of the push plate. The rotating shaft of the rotating motor is anti-rotatingly engaged with the inner hole of the inner pipe.

8. The pipe cleaning device for trenchless spiral winding pipe repair according to claim 7, characterized in that, Two sets of water spray holes are symmetrically arranged along the radial direction of the water spray pipe, and two sets of cleaning brushes are symmetrically arranged along the radial direction of the water spray pipe. The line connecting the two sets of water spray pipes is arranged orthogonally to the line connecting the two cleaning brushes.

9. The pipe cleaning device for trenchless spiral winding pipe repair according to claim 7, characterized in that, The water spray hole is equipped with a spray head, and the outer end of the spray head is a funnel shape that expands outward.

10. The pipe cleaning device for repairing pipes using the trenchless spiral winding method according to claim 1, characterized in that, The connection structure includes a connecting cylinder that extends in a front-rear direction and has a pusher plate and a support travel mechanism connected to its two ends, respectively.

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