Pipeline cleaning device for pipeline repair

Abstract

The utility model relates to the technical field of pipeline repair, in particular to a pipeline cleaning device for pipeline repair. Comprising a water spraying pipe, a supporting advancing mechanism and a water inlet pipe which are sequentially arranged from front to back, the supporting advancing mechanism comprises a supporting column, a water passing channel is formed in the supporting column, the water spraying pipe is communicated with the water inlet pipe through the water passing channel, and a supporting telescopic mechanism and an advancing mechanism are arranged on the supporting column; the supporting telescopic mechanism can be supported on the inner wall of the pipeline and can change the outer diameter, the advancing mechanism comprises a plurality of sets of advancing wheels arranged in an annular array mode along the axis of the supporting column, and the advancing wheels are used for being supported on the inner wall of the pipeline and slide in the length direction of the pipeline. The advancing mechanism drives the cleaning device to advance along the pipeline and drives the water inlet pipe to advance in the length direction of the pipeline, the situation that the cleaning effect of high-pressure water becomes poor along with increase of the length of the pipeline is avoided, water can be sprayed to the inner wall of the pipeline through the water spraying pipe, and the cleaning effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of pipeline repair technology, specifically to a pipeline cleaning device for pipeline repair. 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 pipe cleaning device for pipe repair. The device uses a traveling mechanism to drive the cleaning device along the pipe and the water inlet pipe to move along the length of the pipe. This avoids the situation where the cleaning effect of high-pressure water deteriorates as the pipe length increases. The water spray pipe can spray water onto the inner wall of the pipe to improve the cleaning effect. The support telescopic mechanism maintains stable support during the cleaning process to ensure the cleaning effect.

[0006] To address the aforementioned technical problems, the present invention provides a pipe cleaning device for pipe repair, comprising a water spray pipe, a supporting and traveling mechanism, and a water inlet pipe arranged sequentially from front to back. The supporting and traveling mechanism includes a support column with a water passage inside. The water spray pipe and the water inlet pipe are connected through the water passage. The support column is equipped with a supporting telescopic mechanism and a traveling mechanism. The supporting telescopic mechanism can be supported on the inner wall of the pipe and can change its outer diameter. The traveling mechanism includes multiple sets of traveling wheels arranged in a circular array along the axis of the support column. The traveling wheels are used to support the inner wall of the pipe and slide along the length of the pipe.

[0007] 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.

[0008] Furthermore, two sets of support airbags are arranged at intervals along the front-back direction on the support column, and the two support airbags are connected by a connecting air tube. The inflation tube is connected to one of the support airbags, and the traveling mechanism is arranged between the two support airbags.

[0009] 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.

[0010] Furthermore, a push plate is arranged at intervals in front of the support column, and the push plate is connected to the support column through a connecting structure. The push plate is provided with a mounting through hole extending in the front-back direction. The front end of the water spray pipe extends out of the mounting through hole, and the rear end of the water spray pipe is connected to the water passage through a connecting pipe.

[0011] Furthermore, the connecting structure includes a connecting cylinder that extends in the front-to-back direction, with a pusher plate and a support column connected to its two ends respectively, and the connecting pipe is a telescopic water pipe.

[0012] Furthermore, the pusher disc has a circular structure, the outer diameter of the pusher disc is adapted to the inner diameter of the pipe, the mounting through hole is arranged coaxially with the pusher disc, and two sets of connecting cylinders are arranged symmetrically with the mounting through hole as the center.

[0013] Furthermore, the front end of the water spray pipe is provided with a flared, funnel-shaped structure.

[0014] Furthermore, the pusher plate is provided with a cleaning brush and a rotating mechanism. The length of the cleaning brush extends in the front-to-back direction, and the radial outer end of the cleaning brush is used to attach to the inner wall of the pipe. The rotating mechanism is used to drive the cleaning brush to rotate along the pipe axis.

[0015] Furthermore, the rotating mechanism includes an outer gear ring, an internal gear, and a drive motor. Multiple internal gears are arranged in a circular array along the axis of the outer gear ring. Each internal gear is disposed on the inner wall of the outer gear ring and meshes with the outer gear ring for transmission. Both the outer gear ring and the internal gears are rotatably mounted on the pusher disk. The rear end of the cleaning brush is fixedly disposed on the front side of the outer gear ring. The drive motor drives one of the internal gears to rotate.

[0016] Furthermore, the push disk has an internal mounting cavity, and the external gear ring and internal gear are rotatably mounted in the mounting cavity. The front end of the push disk has an annular rotating groove, and the rear end of the cleaning brush passes through the annular rotating groove and is fixed on the external gear ring. The drive motor is mounted on the rear end face of the push disk.

[0017] Furthermore, the push plate is formed by connecting a front end cover and a rear end cover, and the front end cover and the rear end cover are symmetrically provided with annular mounting grooves on opposite sides, and the two annular mounting grooves constitute the mounting cavity.

[0018] Furthermore, two cleaning brushes are symmetrically arranged along the axis of the outer toothed ring, and the front ends of the two cleaning brushes are connected by a support rod.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] (1) The traveling mechanism allows the cleaning device to move along the pipeline, and the water inlet pipe to move along the length of the pipeline, avoiding the situation where the cleaning effect of high-pressure water deteriorates as the pipeline length increases, ensuring good cleaning effect for pipelines of different lengths. The spray pipe can spray water onto the inner wall of the pipeline, improving the cleaning effect. The support telescopic mechanism can change its outer diameter, ensuring stable support on the inner wall of the pipeline, guaranteeing the stability and cleaning quality of the cleaning process, and adapting to different pipe diameters, thus improving applicability. In summary, the cleaning device of this utility model can improve the quality of pipeline cleaning, the quality of subsequent pipeline repair, and construction efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a pipe cleaning device for pipe repair in Embodiment 1 of this utility model.

[0022] Figure 2 This is a front view of a pipe cleaning device for pipe repair in Embodiment 1 of this utility model.

[0023] Figure 3 This is a front sectional view of a pipe cleaning device for pipe repair in Embodiment 1 of this utility model.

[0024] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0025] Figure 5 This is a schematic diagram of the overall structure of a pipe cleaning device for pipe repair in Embodiment 2 of this utility model.

[0026] Figure 6 This is a schematic diagram of the overall structure of a pipe cleaning device for pipe repair in Embodiment 3 of this utility model.

[0027] Figure 7 This is a cross-sectional view of the water spray pipe, cleaning brush, and push plate in Embodiment 3 of this utility model.

[0028] Figure 8This is a side view of the water spray pipe, cleaning brush, and push plate (hidden front cover) in Embodiment 3 of this utility model.

[0029] Figure 9 This is a schematic diagram of the cleaning brush in Embodiment 3 of this utility model.

[0030] Figure 10 This is a schematic diagram of the overall structure of a pipe cleaning device for pipe repair in Embodiment 4 of this utility model.

[0031] Figure 11 This is a cross-sectional view of the supporting travel mechanism and the water inlet pipe in Embodiment 4 of this utility model.

[0032] Figure 12 This is a cross-sectional view of the water spray pipe, cleaning brush, and push plate in Embodiment 4 of this utility model.

[0033] Figure 13 This is a rear view of the water spray pipe in Embodiment 4 of this utility model.

[0034] Figure 14 This is a side view of the support telescopic mechanism in Embodiment 5 of this utility model.

[0035] 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;

[0036] 31. Spray pipe; 311. Outer pipe; 312. Inner pipe; 313. Water ring; 314. Spray hole; 315. Spray head; 316. Outer end plate;

[0037] 32. Cleaning brush; 321. Cleaning board; 322. Cleaning pad; 33. Support rod;

[0038] 4. Push plate; 41. Water inlet channel; 42. Water inlet hole; 43. Cover plate; 44. Mounting through hole;

[0039] 5. Rotating motor; 51. Rotating shaft;

[0040] 6. Connecting cylinder; 7. Telescopic water hose; 8. Retaining ring;

[0041] 9. Front cover; 10. Rear cover; 101. Annular mounting groove; 11. External gear ring; 12. Internal gear; 13. Rotating groove; 14. Drive motor; 15. Motor shaft; 16. Rotating shaft; 17. Bearing;

[0042] 171. Mounting hole; 18. Support cylinder; 19. Support plate. Detailed Implementation

[0043] 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:

[0045] 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 water spray pipe 31 is located in front of the water inlet pipe 1. Similarly, the axial direction of the pipe to be cleaned is also the front-to-back direction.

[0046] refer to Figures 1 to 4 This utility model discloses a pipe cleaning device for pipe repair (hereinafter referred to as the cleaning device), which includes a water spray pipe 31, a support and travel mechanism 2, and a water inlet pipe 1 arranged sequentially from front to back. The support and travel mechanism 2 includes a support column 21, and a water passage 22 is formed inside the support column 21. The water spray pipe 31 and the water inlet pipe 1 are connected through the water passage 22. The support column 21 is provided with a support telescopic mechanism 23 and a travel mechanism 24. The support telescopic mechanism 23 can be supported on the inner wall of the pipe and can change its outer diameter. The travel mechanism 24 includes multiple sets of travel wheels 241 arranged in a ring array along the axis of the support column 21. The travel wheels 241 are used to support the inner wall of the pipe and slide along the length of the pipe.

[0047] This configuration allows the traveling mechanism 24 to drive the cleaning device along the pipeline, and the water inlet pipe 1 to move along the length of the pipeline. This avoids the situation where the cleaning effect of high-pressure water deteriorates as the pipeline length increases, ensuring good cleaning results for pipelines of different lengths. The spray pipe 31 can spray water onto the inner wall of the pipeline, improving the cleaning effect. The support telescopic mechanism 23, with its variable outer diameter, ensures stable support on the inner wall of the pipeline, guaranteeing the stability and quality of the cleaning process. Furthermore, it can adapt to different pipe diameters, improving applicability. Ultimately, this cleaning device improves the quality of pipeline cleaning, the quality of subsequent pipeline repair, and construction efficiency.

[0048] In this embodiment, 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 inner diameter of the pipe, ensuring the support telescopic mechanism 23 is stably supported on the inner wall of the pipe. The cleaning device's position is fixed, and the water inlet pipe 1 supplies water to the spray pipe 31, which sprays water to clean the inner wall of the pipe. This support from the support telescopic mechanism 23 prevents the cleaning device from changing position under water pressure, ensuring effective cleaning. After cleaning at that position is completed, the support telescopic mechanism 23 retracts, and the traveling wheel 241 drives the cleaning device to the next position to be cleaned, ensuring the orderly progress of the cleaning work.

[0049] In this embodiment, four groups of traveling wheels 241 are arranged in an array along the axis of the support column 21. Of course, in other embodiments, three or six groups can also be arranged in an array.

[0050] Specifically, in this embodiment, the support column 21 comprises a cylindrical structure at the front and a frustum structure at the rear. In actual use, when the cleaning device is arranged inside the pipe, the axis of the support column 21 coincides with the axis of the water inlet pipe 1. The water passage 22 is a perforated structure arranged coaxially with the support column 21, and its front and rear ends are respectively sealed and connected to the rear end of the spray pipe 31 and the front end of the water inlet pipe 1.

[0051] Preferably, in this embodiment, such as Figure 2 , 3 As shown in Figure 4, the support telescopic mechanism 23 includes a support airbag 231 and an inflation tube 232. 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, and the rear end of the inflation tube 232 is connected to an external inflation device. The tube body of the inflation tube 232 is attached to the water inlet pipe 1 and fixed by a fixing ring 8.

[0052] 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.

[0053] Specifically, in this embodiment, two sets of support airbags 231 are arranged at intervals along the front-rear direction on 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 tube 232 is connected to the rear support airbag 231.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] 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.

[0059] Preferably, in this embodiment, the front end of the water spray pipe 31 is provided with a funnel-shaped flared structure. This allows the water flow to form a larger coverage area when sprayed, and at the same time, the water flow is sprayed more evenly on the inner wall of the pipe, improving the cleaning effect. 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 front end of the water spray pipe 31. The water nozzles spray water radially outward along the pipe and spray water onto the inner wall of the pipe through the water nozzles.

[0060] In this embodiment, the cleaning device of this utility model is used as follows:

[0061] 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.

[0062] When the cleaning location is reached, the inflation device is activated, and the supporting airbag 231 expands to support and seal the inner wall of the pipe. The water supply device supplies water, which enters the spray pipe 31 from the inlet pipe 1 through the water channel 22, and then sprays out from the spray pipe 31. The high-pressure water jet from the spray pipe 31 washes the inner wall of the pipe at that location and carries impurities towards the front end of the pipe.

[0063] Once the cleaning at that location is complete, the water supply equipment stops supplying water, the inflation equipment stops inflating, and the support airbag 231 retracts and separates from the inner wall of the pipe. Simultaneously, as needed, the inflation equipment can be used to deflate the support airbag 231, preventing it from adhering to the inner wall of the pipe. The traveling mechanism 24 is then activated, and the traveling wheels 241 drive the cleaning equipment to the next location to be cleaned.

[0064] Repeat the above steps until the entire pipeline has been cleaned.

[0065] Meanwhile, in actual use, the radial position of each traveling wheel 241 can be adjusted by telescopic cylinder 242 to improve applicability.

[0066] Example 2: This example provides a different cleaning device. Unlike Example 1, in this example, such as... Figure 5 As shown, pusher discs 4 are arranged at intervals in front of the support column 21. The pusher discs 4 are connected to the support column 21 through a connecting structure. The pusher discs 4 are provided with mounting through holes 44 extending in the front-rear direction. The front end of the water spray pipe 31 extends out of the mounting through holes 44, and the rear end of the water spray pipe 31 is connected to the water passage 22 through a connecting pipe. The pusher discs 4 are used to push impurities on the inner wall of the pipe forward.

[0067] Specifically, in this embodiment, the pusher plate 4 is 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. The connecting structure includes a connecting cylinder 6, which extends in the front-rear direction, and the two ends of the connecting cylinder 6 are respectively connected to the pusher plate 4 and the support column 21. The connecting pipe is a telescopic water pipe 7.

[0068] Two sets of connecting cylinders 6 are arranged symmetrically along the axis of the pusher disk 4.

[0069] In actual use, after the cleaning of the area to be cleaned is completed, the connecting cylinder 6 is first activated, driving the pushing disc 4 forward to push the impurities in the cleaned pipe section forward. Then, the connecting cylinder 6 retracts, and the pushing disc 4 returns to its original position. During the movement of the pushing disc 4, the telescopic water pipe 7 deforms to compensate for displacement, preventing damage from pulling on the telescopic water pipe 7. Afterwards, the supporting telescopic mechanism 23 retracts, and the traveling mechanism 24 then drives the entire cleaning device forward. The pushing disc 4 prevents impurities from accumulating and affecting the movement, while ensuring that impurities are effectively pushed forward out of the front end of the pipe, guaranteeing the quality of pipe cleaning.

[0070] In other embodiments, the pusher disk 4 may also be a lower semi-circular structure, with a semi-circular through hole at the center of the semi-circular structure forming an installation through hole 44. The arc-shaped surface of the lower semi-circular structure fits against the inner wall of the pipe, and the lower semi-circular structure is used to push the impurities falling on the inner wall of the pipe forward.

[0071] Example 3: This example provides a different cleaning device. Unlike Example 2, in this example, such as... Figure 6 , 7 As shown in Figures 8 and 9, a cleaning brush 32 and a rotating mechanism are provided on the pusher plate 4. The cleaning brush 32 extends along the front-to-back direction, and its radial outer end is used to adhere to the inner wall of the pipe. The rotating mechanism is used to drive the cleaning brush 32 to rotate along the pipe axis. By using the rotating cleaning brush 32, the inner wall of the pipe is scrubbed while water is sprayed, effectively removing impurities from the inner wall of the pipe, improving the quality of pipe cleaning, and ensuring the quality of subsequent repairs and construction efficiency.

[0072] Specifically, in this embodiment, the rotating mechanism includes an outer gear ring 11, internal gears 12, and a drive motor 14. Multiple internal gears 12 are arranged in a circular array along the axis of the outer gear ring 11. Each internal gear 12 is disposed on the inner wall of the outer gear ring 11 and meshes with it for transmission. Both the outer gear ring 11 and the internal gears 12 are rotatably mounted on the pusher disk 4. The rear end of the cleaning brush 32 is fixedly disposed on the front side of the outer gear ring 11. The drive motor 14 drives one of the internal gears 12 to rotate. While the drive motor 14 drives one of the internal gears 12 to rotate, the remaining internal gears 12 provide support, thereby driving the outer gear ring 11 to rotate. Simultaneously, the rotation of the outer gear ring 11 drives the cleaning brush 32 on it to rotate around the pipe axis, achieving brushing.

[0073] Preferably, in this embodiment, an installation cavity is provided inside the push disk 4, and both the external gear ring 11 and the internal gear 12 are rotatably disposed within the installation cavity. An annular rotating groove 13 is provided at the front end of the push disk 4, with its inner end extending into the installation cavity. The radial width of the annular rotating groove 13 is smaller than the width of the external gear ring 11 to prevent the external gear ring 11 from dislodging.

[0074] The rear end of the cleaning brush 32 passes through the annular rotating groove 13 and is fixed on the outer toothed ring 11. The rear end size of the cleaning brush 32 is adapted to the annular rotating groove 13. The rear end of the cleaning brush 32 slides along the annular rotating groove 13 to rotate around the pipe axis. The drive motor 14 is set on the rear end face of the push plate 4.

[0075] Specifically, in this embodiment, the push disk 4 is formed by the docking and fixing of the front end cover 9 and the rear end cover 10. The front end cover 9 and the rear end cover 10 are symmetrically provided with annular mounting grooves 101 on their opposite sides, and the two annular mounting grooves 101 are combined to form a mounting cavity.

[0076] Specifically, the annular mounting groove 101 includes a first annular groove and a second annular groove running from the inside out, and the first annular groove and the second annular groove are interconnected. The external gear ring 11 is rotatably mounted in the second annular groove via a bearing 17, and the internal gear 12 is rotatably mounted in the second annular groove via a bearing 17. Specifically, in this embodiment, the housing of the drive motor 14 is fixedly mounted at the rear end of the rear end cover 10, and the motor shaft 15 of the drive motor 14 extends forward and penetrates into the second annular groove, engaging with the corresponding internal gear 12 in a non-rotating engagement. The remaining internal gears 12 are all equipped with non-rotating rotating shafts 16.

[0077] The front and rear sides of the motor shaft 15 and the rotating shaft 16 respectively extend into the second annular grooves of the front end cover 9 and the rear end cover 10, and are rotatably engaged with the corresponding second annular grooves via bearings 17. The annular rotating groove 13 is provided on the front side of the front end cover 9.

[0078] In this embodiment, preferably, two cleaning brushes 32 are symmetrically arranged along the axis of the outer toothed ring 11, and the front ends of the two cleaning brushes 32 are connected by a support rod 33. The support rod 33 provides support to ensure that the cleaning brushes 32 can perform stable brushing operations.

[0079] In this embodiment, 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.

[0080] In this embodiment, when the cleaning position is reached, while the water spray pipe 31 sprays water outward, the drive motor 14 drives the corresponding internal gear 12 to rotate, which in turn drives the external gear ring 11 to rotate, and drives the two cleaning brushes 32 to rotate along the annular rotating groove 13 to complete the rotating brushing operation.

[0081] Example 4: This example provides a different cleaning device. Unlike Example 3, in this example, such as... Figure 10 , 11 As shown in Figures 12 and 13, the water spray pipe 31 is also rotatably mounted on the push plate 4.

[0082] Specifically, 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.

[0083] 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.

[0084] 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.

[0085] The rear end of the inner tube 312 extends out of the outer tube 311 to the rear end of the mounting through hole 44, and the rear end of the inner tube 312 rotates and seals with the rear end of the mounting through hole 44. 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 the two.

[0086] A water inlet 42 is provided at the rear end of the push plate 4, and the water inlet 42 is located away from the center of the push plate 4. Similarly, the front opening of the water passage 22 of the support column 21 corresponds to the water inlet 42. The telescopic water pipe 7 connects the water passage 22 and the water inlet 42. The water inlet 42 and the water ring 313 are connected by the water inlet channel 41 and the mounting through hole 44. The water inlet pipe 1 is connected to the water inlet 42, so that the water in the water inlet pipe 1 can enter the spray pipe 31.

[0087] The cleaning brush 32 is mounted on the outer tube 311 via a support rod 33. The rotating mechanism includes a rotating motor 5 mounted at the rear end of the pusher disc 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, and 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. Simultaneously, water is supplied to the water inlet hole 42 via the water inlet pipe 1. The water in the water inlet hole 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.

[0088] 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.

[0089] 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.

[0090] 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.

[0091] In this embodiment, the cleaning device of this utility model is used as follows:

[0092] 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.

[0093] 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.

[0094] 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 cleaning brush 32 and the water spray pipe 31 in the next working position.

[0095] 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.

[0096] Repeat the above steps until the entire pipeline has been cleaned.

[0097] Example 5: This example provides a different support telescopic mechanism. Unlike Example 1, in this example, as... Figure 14As 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.

[0098] 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.

[0099] 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.

[0100] 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.

[0101] 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 pipe repair, characterized in that, The system includes a water spray pipe, a supporting and traveling mechanism, and a water inlet pipe arranged sequentially from front to back. The supporting and traveling mechanism includes a support column with a water passage inside. The water spray pipe and the water inlet pipe are connected through the water passage. The support column is equipped with a supporting telescopic mechanism and a traveling mechanism. The supporting telescopic mechanism can be supported on the inner wall of the pipe and can change its outer diameter. The traveling mechanism includes multiple sets of traveling wheels arranged in a circular array along the axis of the support column. The traveling wheels are used to support the inner wall of the pipe and slide along the length of the pipe.

2. The pipe cleaning device for pipe repair according to claim 1, 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.

3. The pipe cleaning device for pipe repair according to claim 2, 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.

4. The pipe cleaning device for 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.

5. The pipe cleaning device for pipe repair according to claim 1, characterized in that, Pushing discs are arranged at intervals in front of the support column. The pushing discs are connected to the support column through a connecting structure. The pushing discs are provided with mounting through holes extending in the front-back direction. The front end of the water spray pipe extends out of the mounting through hole, and the rear end of the water spray pipe is connected to the water passage through a connecting pipe.

6. The pipe cleaning device for pipe repair according to claim 5, characterized in that, The connection structure includes a connecting cylinder that extends in the front-to-back direction. The two ends of the connecting cylinder are respectively connected to a pusher plate and a support column. The connecting pipe is a telescopic water pipe.

7. A pipe clearing device for pipe rehabilitation according to claim 6, wherein, The pusher plate has a circular structure, and its outer diameter is adapted to match the inner diameter of the pipe. The mounting through hole is arranged coaxially with the pusher plate, and two sets of connecting cylinders are arranged symmetrically with the mounting through hole as the center.

8. The pipe cleaning device for pipe repair according to claim 1, characterized in that, The front end of the water spray pipe is provided with a flared, funnel-shaped structure.

9. The pipe cleaning device for pipe repair according to claim 5, characterized in that, The pusher plate is equipped with a cleaning brush and a rotating mechanism. The length of the cleaning brush extends in the front-to-back direction, and the radial outer end of the cleaning brush is used to attach to the inner wall of the pipe. The rotating mechanism is used to drive the cleaning brush to rotate along the pipe axis.

10. The pipe cleaning device for pipe repair according to claim 9, characterized in that, The rotating mechanism includes an outer gear ring, an inner gear, and a drive motor. Multiple inner gears are arranged in a circular array along the axis of the outer gear ring. Each inner gear is disposed on the inner wall of the outer gear ring and meshes with the outer gear ring for transmission. The outer gear ring and the inner gears are rotatably mounted on the pusher disk. The rear end of the cleaning brush is fixedly disposed on the front side of the outer gear ring. The drive motor drives one of the inner gears to rotate.

11. The pipe cleaning device for pipe repair according to claim 10, characterized in that, The push disk has an internal mounting cavity, and the external gear ring and internal gear are rotatably mounted in the mounting cavity. The front end of the push disk has an annular rotating groove, and the rear end of the cleaning brush passes through the annular rotating groove and is fixed on the external gear ring. The drive motor is mounted on the rear end face of the push disk.

12. The pipe cleaning device for pipe repair according to claim 11, characterized in that, The push plate is formed by connecting a front cover and a rear cover. The front cover and the rear cover are symmetrically provided with annular mounting grooves on opposite sides, and the two annular mounting grooves constitute the mounting cavity.

13. The pipe cleaning device for pipe repair according to claim 10, characterized in that, Two cleaning brushes are symmetrically arranged along the axis of the outer toothed ring, and the front ends of the two cleaning brushes are connected by a support rod.

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