A synchronously controlled in-pipe lining repair device and repair method

Abstract

The present application relates to the field of pipeline lining repair, in particular to a synchronous control pipeline lining repair device and method, a reducing frame, as the main frame of the device, a reducing shaft, several in number and horizontally and vertically distributed, rotating and penetrating the inside of the reducing frame, a reducing roller, fixedly sleeved on the outside of the reducing shaft, extruding and reducing the HDPE pipe along with the rotation of the reducing shaft, a traction frame, symmetrically distributed with the reducing frame, a traction unit, installed in the traction frame, used for cooperating to realize the traction action of the HDPE pipe, a traction rope, connected with the traction unit, used for directly traction the reduced HDPE pipe, a driving unit connecting the reducing shaft and the traction unit, cooperating with the driving and adjusting assembly to realize the synchronous or separate driving of the reducing shaft and the traction shaft, solving the problems that the reducing and traction equipment are separately arranged on both sides, relying on manual communication adjustment and unable to automatically synchronize in the prior art, without the need for frequent communication and adjustment of the equipment start-stop and speed by the staff, effectively ensuring the timeliness and accuracy of the regulation and control, and simplifying the operation process.

Description

Technical Field

[0001] This invention relates to the field of pipeline lining repair, and in particular to a synchronously controlled pipeline lining repair device and repair method. Background Technology

[0002] Existing devices for repairing HDPE pipe linings typically consist of a diameter reduction device and a traction device that work together to complete the pipe traction repair operation. The two devices are installed on both sides of the pipe to be repaired. The diameter reduction device is responsible for compressing the HDPE pipe to a diameter that matches the original pipe, while the traction device pulls the reduced HDPE pipe into the original pipe.

[0003] Because the two devices are located on both sides of the pipeline, the staff on both sides need to communicate with each other through intercom devices during operation in order to control the start-up, shutdown and operating speed of the devices. The operation process is not only cumbersome, but also makes it difficult to ensure the timeliness and accuracy of the control, which brings a lot of inconvenience to the repair work.

[0004] In the prior art, such as the patent with publication number CN109681717A, an HDPE pipe repair traction-type diameter reduction machine with O-type necking modules is disclosed. Its diameter reduction end consists of four sets of necking module frames installed in the overall frame. Each set of necking module frames has a vertical roller and a horizontal roller fixed by a roller shaft, which together form an O-type mold frame. The inner diameter of the four sets of necking module frames gradually decreases from front to back. The diameter reduction of HDPE pipe is achieved by four-stage rolling. The traction end consists of HDPE pipe traction head clamp, through nail, traction plate, steel traction ring, traction machine and steel wire rope. The traction machine pulls the steel wire rope, which drives the traction plate and clamp fixed to the bevel of the front end of the HDPE pipe, thereby tractioning the HDPE pipe to move.

[0005] However, the existing technologies described above also have significant drawbacks regarding the reduction and traction ends: the reduction operation relies on the rolling action of the necking module frame, while the traction operation is driven independently by the traction machine. The operating speeds of both depend entirely on manual adjustment based on experience, making automatic synchronization impossible. Therefore, if the reduction speed is slow while the traction speed is fast, the reduced-diameter HDPE pipe will be excessively stretched by the traction equipment, resulting in a longer pipe length and a further reduction in diameter. This makes it difficult to achieve a tight fit with the inner wall of the pipe to be repaired during subsequent restoration.

[0006] Conversely, if the diameter reduction speed is too fast and the traction speed is too slow, the HDPE pipe cannot be pulled forward in time after diameter reduction. This will cause accumulation and bending between the diameter reduction equipment and the traction equipment, and it will also be unable to fit smoothly into the original inner wall of the pipe. This requires the staff to frequently adjust the operating status of the diameter reduction module or the traction speed of the traction machine manually, which not only increases labor costs, but also seriously affects the efficiency and quality of pipeline repair.

[0007] Therefore, based on the above-stated viewpoints, there is still room for optimization in existing methods for repairing pipe linings. Summary of the Invention

[0008] To address the above problems, the present invention provides a synchronously controlled pipe lining repair device, comprising: The diameter reduction frame is the main frame of this device.

[0009] There are several reducing shafts, arranged horizontally and vertically, which are rotatably inserted inside the reducing frame.

[0010] The reducing roller is fixedly sleeved on the outside of the reducing shaft and rotates with the reducing shaft to extrude and reduce the diameter of the HDPE pipe.

[0011] The traction frame, symmetrically distributed with the reduced-diameter frame, serves as the basic framework for traction operations.

[0012] The traction unit, installed inside the traction frame, is used to assist in the traction action of the HDPE pipe.

[0013] The traction rope, connected to the traction unit, is used to directly pull the reduced-diameter HDPE pipe.

[0014] The drive unit connects the reduced-diameter shaft and the traction unit, and is used to transmit power to drive the reduced-diameter shaft and the traction unit.

[0015] The detection component, installed at the end of the traction rope, is used to detect the force and condition of the HDPE pipe during the traction process.

[0016] Preferably, the ends of the reducing shafts on the same horizontal plane are connected by a belt drive to ensure that multiple reducing shafts rotate synchronously, thereby driving the reducing rollers to extrude and reduce the diameter of the HDPE pipe synchronously.

[0017] Preferably, the traction unit includes: The traction shaft is rotatably mounted on the inner walls of both sides of the traction frame.

[0018] The traction disc is fixedly sleeved on the outside of the traction shaft. One end of the traction rope is wound around the outside of the traction disc. When the traction shaft rotates, it drives the traction disc to wind the traction rope to achieve traction.

[0019] Preferably, a drive shaft is rotatably installed on the inner walls of both sides of the traction frame, and a driven shaft is installed at one end of the reduced diameter shaft that extends out of the reduced diameter frame. A drive unit is installed between the drive shaft and the driven shaft, and the drive unit includes drive wheels that are respectively fixedly sleeved on the outside of the drive shaft and the driven shaft.

[0020] The drive rope is looped around the outside of the drive wheel.

[0021] Flanges are installed at the ends of the drive ropes, and the two flanges are used to connect the drive ropes on both sides by bolts.

[0022] Preferably, the detection component includes: The detection frame is installed at the end of the traction rope.

[0023] The sliding plate is slidably positioned within the detection frame.

[0024] A distance sensor is installed on one side of the sliding plate and corresponds to the inner wall of the detection frame to detect the distance between the sliding plate and the inner wall of the detection frame when the sliding plate slides.

[0025] The reset spring is connected between the sliding plate and the inner side wall of the detection frame.

[0026] Preferably, the detection component further includes: A fixing rope is installed on the side of the sliding plate away from the distance sensor and slides through to the outside of the detection frame.

[0027] The end of the fixing rope away from the sliding plate is used to connect the HDPE pipe.

[0028] Preferably, the traction frame is further equipped with a drive assembly that simultaneously drives the drive shaft and the traction shaft to rotate. The drive assembly includes: The sliding groove is located on the bottom wall of the traction frame.

[0029] The motor mount is slidably mounted in the sliding groove.

[0030] The drive motor is mounted on the motor mount.

[0031] Two driven gears are staggered and fixedly mounted on the outside of the drive shaft and traction shaft, respectively.

[0032] The drive gear is sleeved on the outside of the drive motor shaft and meshes with the driven gear.

[0033] Preferably, the adjusting screw is rotatably inserted through the inner wall of one side of the traction frame, the adjusting motor is installed on the inner wall of one side of the traction frame and the motor shaft is connected to the end of the adjusting screw through a coupling, and the outer bolt of the adjusting screw passes through the motor base.

[0034] Preferably, the end of the traction rope and the end of the traction disc are fixedly connected by rivet insertion to prevent the traction rope from slipping when the traction disc winds the traction rope, thus ensuring stable traction force.

[0035] Furthermore, the present invention also provides a synchronously controlled method for repairing pipe linings, comprising the following steps: S1, HDPE pipe diameter reduction: Place the diameter reduction frame and the traction frame at both ends of the pipe to be repaired, and put one end of the HDPE pipe between the diameter reduction rollers in the diameter reduction frame. The diameter reduction rollers squeeze the outer diameter of the HDPE pipe to achieve diameter reduction and drive the HDPE pipe out of the diameter reduction frame.

[0036] S2, HDPE pipe traction: The traction rope is pulled from the pipe to be repaired to the front end of the reducer frame. The end of the HDPE pipe is connected through the detection component. The drive unit drives the traction unit to run, so that the traction rope pulls the HDPE pipe into the pipe to be repaired.

[0037] S3, Drive Adjustment: The detection component detects the force on the HDPE pipe. If the force on the HDPE pipe is too great, the drive unit is adjusted to increase the running speed of the reducing shaft. If the detection component shows that the HDPE pipe traction status is abnormal, the drive unit is adjusted to increase the running speed of the traction unit until the force and traction status of the HDPE pipe return to normal.

[0038] S4, Real-time Detection: The detection component continuously monitors the stress state of the HDPE pipe, and repeats S to make adjustments based on the detection results. After the HDPE pipe is in place, the drive unit is disconnected, the traction rope is stored, and the reduction frame and traction frame are taken out.

[0039] In summary, this application includes at least one of the following beneficial technical effects: I. This invention solves the problem in the prior art where the reducing shaft and the traction unit are set up to connect the reducing shaft and the traction unit, and the reducing shaft and the traction shaft are driven synchronously or separately by the drive adjustment component. This solves the problem that the reducing shaft and the traction equipment are set up on two separate sides, rely on manual intercom adjustment and cannot be automatically synchronized. It eliminates the need for staff to frequently communicate and adjust the equipment start-up and speed, effectively ensuring the timeliness and accuracy of the control and simplifying the operation process.

[0040] Second, this invention sets a detection component at the end of the traction rope to monitor the stress state of the HDPE pipe and the matching of the diameter reduction feed and traction during the traction process in real time. Combined with the drive adjustment component to adjust the diameter reduction or traction speed, it avoids the problem of excessive stretching of the HDPE pipe due to slow diameter reduction and fast traction, or the problem of HDPE pipe stacking and bending due to fast diameter reduction and slow traction. This ensures that the HDPE pipe can fit tightly against the inner wall of the pipe to be repaired, thus guaranteeing the repair quality.

[0041] Third, this invention reduces manual intervention by using the traction structure of the traction rope in the traction unit of the traction frame and the drive detection and adjustment components, thus solving the problems of high labor costs and frequent equipment adjustments affecting repair efficiency. At the same time, it improves the overall stability and efficiency of pipeline lining repair operations and reduces the inconvenience of repair operations. Attached Figure Description

[0042] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0043] Figure 1 This is a schematic diagram of the main body of the present invention.

[0044] Figure 2 This is a schematic diagram of the diameter reduction frame of the present invention.

[0045] Figure 3 This is a schematic diagram of the traction unit of the present invention.

[0046] Figure 4 This is a schematic diagram of the structure of the driving unit of the present invention.

[0047] Figure 5 This is the present invention. Figure 4 Enlarged view of part of the structure at point A in the middle.

[0048] Figure 6 This is a schematic diagram of the structure of the driving component of the present invention.

[0049] Figure 7 This is the present invention. Figure 6 Enlarged view of part of the structure at point B.

[0050] Figure 8 This is a schematic diagram of the detection component of the present invention.

[0051] Figure 9 This is a cross-sectional structural diagram of the detection component of the present invention.

[0052] In the diagram, 1. Reduction frame; 10. Reduction shaft; 11. Reduction roller; 12. Traction frame; 13. Traction rope; 2. Traction unit; 20. Traction shaft; 21. Traction disc; 3. Drive unit; 30. Drive shaft; 31. Driven shaft; 32. Drive wheel; 33. Drive rope; 34. Flange; 4. Drive assembly; 40. Sliding groove; 41. Motor base; 42. Drive motor; 43. Driven gear; 44. Drive gear; 45. Adjusting screw; 46. Adjusting motor; 5. Detection assembly; 50. Detection frame; 51. Sliding plate; 52. Reset spring; 53. Fixing rope; 6. Friction plate. Detailed Implementation

[0053] The following combination Figures 1 to 9 The embodiments of the present invention will be described in detail below.

[0054] This application discloses a synchronously controlled pipe lining repair device and method, which is applied to the repair of HDPE pipe linings in existing pipelines. It can reduce the diameter of HDPE pipes through a diameter reduction frame, diameter reduction shaft, and diameter reduction roller, and synchronously pull with a traction frame, traction unit, and traction rope to solve the problem of asynchronous diameter reduction and traction in traditional devices. Furthermore, it can also reduce manual intervention and improve repair efficiency and quality by transmitting force through a drive unit and monitoring the force through a detection component.

[0055] Example 1: Refer to Figure 1 and Figure 2As shown, the device includes a diameter reduction frame 1, a diameter reduction shaft 10, a diameter reduction roller 11, a traction frame 12, a traction unit 2, and a traction rope 13. The diameter reduction frame 1 and the traction frame 12 are symmetrically distributed. Several diameter reduction shafts 10 are rotatably inserted inside the diameter reduction frame 1, and diameter reduction rollers 11 located inside the diameter reduction frame 1 are fixedly sleeved on the outside of the diameter reduction shafts 10. One end of the horizontal and vertical shafts is rotatably inserted to the outside of the diameter reduction frame 1, and the ends of the diameter reduction shafts 10 on the same horizontal plane are connected by a belt drive. When the diameter reduction shafts 10 on one side are driven by an external force, the other diameter reduction shafts 10 and the outer diameter reduction rollers 11 can be driven to rotate by the belt drive. In actual use, one end of the HDPE pipe is placed between the multiple diameter reduction rollers 11 on one side. Then the diameter reduction rollers 11 rotate and drive the HDPE pipe to move towards one side of the diameter reduction frame 1. The multiple diameter reduction rollers 11 can squeeze the outer diameter of the HDPE pipe to achieve the effect of diameter reduction, so that the HDPE pipe can enter the pipeline.

[0056] The traction frame 12 is equipped with a traction unit 2 for pulling HDPE pipes. The traction unit 2 includes a traction rope 13. In the specific implementation process, the reducing frame 1 and the traction frame 12 are placed at both ends of the pipe to be repaired. Then, the implementer pulls the traction rope 13 from the pipe to the front end of the reducing frame 1, so that the HDPE pipe is reduced and moved out from one side of the reducing frame 1. The implementer can tie one end of the traction rope 13 to the end of the HDPE pipe, so that the traction unit 2 can pull the HDPE pipe into the pipe through the traction rope 13.

[0057] Reference Figure 3 As shown, this is the traction unit 2 used to pull HDPE pipes. Specifically, the traction unit 2 includes a traction shaft 20 and a traction disc 21. The traction shaft 20 is rotatably mounted on the inner walls of both sides of the traction frame 12. The traction disc 21 is fixedly sleeved on the outer side of the traction shaft 20. One end of the traction rope 13 is wound around the outer side of the traction disc 21, so that when the traction shaft 20 is driven by an external force, it can drive the traction disc 21 to rotate. During the rotation, the traction disc 21 can wind the traction rope 13 around its outer side and drive the other end of the traction rope 13 to move synchronously, so that the traction rope 13 pulls the HDPE pipe into the pipeline.

[0058] Furthermore, the end of the traction rope 13 and the end of the traction disc 21 can be connected by other fixing methods such as rivet insertion to prevent the traction disc 21 from winding and pulling the traction rope 13, causing one end of the traction rope 13 to slip on the outside of the traction disc 21 due to the pull of the HDPE pipe weight, thus preventing it from being properly fitted onto the outside of the disc.

[0059] Reference Figure 4 and Figure 5As shown, drive shafts 30 are rotatably mounted on the inner walls of both sides of the traction frame 12. A driven shaft 31 is installed at one end of the reduced diameter shaft 10 located outside the reduced diameter frame 1. A drive unit 3 for driving the reduced diameter shaft 10 and the traction shaft 20 to rotate is installed between the drive shaft 30 and the driven shaft 31. Specifically, the drive unit 3 includes a drive shaft 30, a driven shaft 31, a drive wheel 32, a drive rope 33, and a flange 34. The drive wheel 32 is fixedly sleeved on the outer side of the drive shaft 30 and the driven shaft 31. A drive rope 33 is sleeved on the outer side of the drive wheel 32. A flange 34 is installed at one end of the drive rope 33. The flanges 34 are fixedly connected by bolts.

[0060] That is, after the reducing frame 1 and the traction frame 12 are placed at both ends of the pipe, the ends of the traction rope 13 and the drive rope 33 are not connected together. Therefore, it is necessary to manually fix the flange 34 between the traction rope 13 and the drive rope 33 together with bolts. When the drive shaft 30 is driven to rotate by external force, the drive wheel 32 can indirectly drive the reducing roller 11 to rotate through the drive rope 33 and the traction rope 13, so that the HDPE pipe can be reduced in diameter and extruded. After the construction is completed, the bolt connection of the two flanges 34 can be released, so that the traction disc 21 and the drive wheel 32 can respectively store the traction rope 13 and the drive rope 33, and the reducing frame 1 and the traction frame 12 can be taken out from both sides of the pipe.

[0061] Reference Figure 6 and Figure 7 As shown, a drive assembly 4 that simultaneously drives the drive shaft 30 and the traction shaft 20 to rotate is also installed inside the traction frame 12. Specifically, the drive assembly 4 includes a sliding groove 40, a motor base 41, a drive motor 42, a driven gear 43, a drive gear 44, an adjusting screw 45, and an adjusting motor 46. The sliding groove 40 is formed on the inner bottom wall of the traction frame 12. The motor base 41, which can slide inside the sliding groove 40, is installed inside the sliding groove 40. The drive motor 42 is installed on the motor base 41. The drive shaft 30 and the traction shaft 20 are located outside the sliding groove 40. Two driven gears 43 are fixedly sleeved on each side in an alternating manner. A drive gear 44 that meshes with the two driven gears 43 is sleeved on the outside of the motor shaft of the drive motor 42. The drive motor 42 can drive the drive shaft 30 and the traction shaft 20 to rotate synchronously through the cooperation of the drive gear 44 and the two driven gears 43, so that the reducing roller 11 can drive the HDPE pipe to reduce its diameter and move out of the reducing frame 1. The traction rope 13 simultaneously guides and pulls the end of the HDPE pipe, so that the HDPE pipe can smoothly enter the pipeline.

[0062] An adjusting screw 45 is rotatably mounted on one side of the inner wall of the traction frame 12, and an adjusting motor 46 is also installed on one side of the inner wall of the traction frame 12. The motor shaft of the adjusting motor 46 is fixedly connected to the end of the adjusting screw 45 through a coupling, driving the adjusting screw 45 to rotate. The outer bolt of the adjusting screw 45 passes through the middle of the motor base 41. That is, the rotation of the adjusting screw 45 can drive the motor base 41 to drive the drive motor 42 to reciprocate under the limiting guide of the sliding groove 40, so that the drive gear 44 is driven to mesh only with the driven gear 43 on one side, or move to the middle of the two driven gears 43 and mesh with both of them synchronously.

[0063] Under normal circumstances, the drive gear 44 meshes synchronously with the two driven gears 43, and the traction rope 13 and the drive rope 33 can drive the HDPE pipe to move synchronously. When the extrusion roller slips on the outside of the HDPE pipe, causing the diameter reduction feed of the HDPE pipe to be less than the traction amount of the traction rope 13, the continued movement of the traction rope 13 will cause the HDPE pipe to be stretched too much. At this time, the drive gear 44 meshes alone with the driven gear 43 on the outside of the drive shaft 30, so that the diameter reduction roller 11 rotates and drives the HDPE pipe into the pipe, so that the HDPE pipe and the traction rope 13 reach a reasonable torque, avoiding the HDPE pipe being stretched excessively; or when the diameter reduction feed of the HDPE pipe is greater than the traction amount, the drive gear 44 meshes alone with the driven gear 43 on the outside of the traction shaft 20, so that the traction rope 13 pulls the HDPE pipe to a taut state, avoiding the HDPE pipe from bending inside the pipe.

[0064] Reference Figure 8 and Figure 9 As shown, a detection component 5 for detecting tension is installed at the end of the traction rope 13. Specifically, the detection component 5 includes a detection frame 50, a sliding plate 51, a reset spring 52, and a fixing rope 53. The detection frame 50 is installed at the end of the traction rope 13. The sliding plate 51 is slidably installed inside the detection frame 50. A distance sensor (not shown in the figure) corresponding to the inner side wall of the detection frame 50 is installed on one side of the sliding plate 51. A reset spring 52 is also installed between the sliding plate 51 and the inner side wall of the detection frame 50. A fixing rope 53 that slides through the detection frame 50 is installed on the side of the sliding plate 51 away from the distance sensor. At this time, the fixing rope 53 is used to connect to the end of the HDPE pipe.

[0065] It should be noted that the distance sensor mentioned above is an infrared laser distance sensor known to those skilled in the art. It detects the distance between the sliding plate and the inner wall of the detection frame when the sliding plate slides by emitting infrared laser signals and receiving reflected signals. It can be adapted to the force monitoring requirements of the device without additional complicated debugging. It is a mature sensing component commonly used in pipeline repair equipment. Therefore, the implementation process will not be described in detail here.

[0066] In the specific implementation process, when the traction rope 13 can indirectly pull the HDPE pipe through the fixed rope 53, during the pulling process, the traction rope 13 first drives the detection frame 50 to move, so that the sliding plate 51 slides in the detection frame 50. At this time, the reset spring 52 is stretched and stored. The distance sensor detects the moving distance of the sliding plate 51 in real time. When the reset spring 52 reaches a certain stretch, that is, when the HDPE pipe is taut, the drive gear 44 can synchronously drive the reducing shaft 10 and the drive shaft 30 to rotate, so as to reduce the diameter of the HDPE pipe in real time and pull it.

[0067] During the movement of the HDPE pipe, the distance sensor detects the movement range of the sliding plate 51 in real time. If the sliding plate 51 continues to drive the reset spring 52 to stretch, that is, the HDPE pipe is subjected to a large traction force at this time, and the diameter reduction feed of the HDPE pipe is less than the traction of the traction rope 13, then only the diameter reduction roller 11 is driven to rotate to reduce the tension of the HDPE pipe subjected to the traction rope 13. Conversely, when the reset spring 52 drives the sliding plate 51 to contract, that is, the diameter reduction feed of the HDPE pipe is greater than the traction, then the traction rope 13 is driven alone to stretch the HDPE pipe to taut, so that the sliding plate 51 moves to the default position. After that, the traction rope 13 and the diameter reduction roller 11 can work synchronously again. In the above process, the distance between the sliding plate 51 and the inner wall of one side of the detection frame 50 can be detected in real time by the distance sensor, so that no excessive manual intervention is required, which further increases the applicability of this application.

[0068] Example 2: Based on Example 1, since different pipes have different diameters, the drive rope 33 may scrape against the inner wall of the pipe. To avoid this, a telescopic shaft can be installed at the end of the corresponding reduced diameter shaft 10 and the drive shaft 30. The two drive wheels 32 are fixedly sleeved on the outside of the telescopic end of the telescopic shaft. By adjusting the telescopic end of the telescopic shaft, the distance between the drive rope 33 and the inner wall of the pipe can be changed without affecting the operation of the drive rope 33.

[0069] Example 3: Continue to refer to Figure 6 As shown, based on Embodiment 1 and Embodiment 2, two L-shaped friction plates 6 of different heights are also installed in the sliding groove 40. The two friction plates 6 correspond to one side of the driven gear 43 on the outside of the drive shaft 30 and the traction shaft 20, respectively. The two friction plates 6 are threaded through the adjusting screw 45, so that when the drive motor 42 drives the drive gear 44 to mesh with different driven gears 43, the friction plates 6 on both sides can contact the outside of the two driven gears 43 respectively and play a friction limiting role. This allows the corresponding traction shaft 20 or drive shaft 30 to be indirectly limited by the friction plates 6 when it is not driven by the drive gear 44, preventing rotation caused by accidental external force.

[0070] It should be noted that when the drive gear 44 meshes with the two driven gears 43 at the same time, the friction plates 6 on both sides do not contact the corresponding driven gears 43, so that the traction shaft 20 and the drive shaft 30 can be indirectly driven to rotate by the drive gear 44.

[0071] Furthermore, the present invention also provides a synchronously controlled method for repairing pipe linings, comprising the following steps: S1, HDPE pipe diameter reduction: Place the diameter reduction frame 1 and the traction frame 12 at both ends of the pipe to be repaired, and put one end of the HDPE pipe between the diameter reduction rollers 11 in the diameter reduction frame 1. The diameter reduction rollers 11 squeeze the outer diameter of the HDPE pipe to achieve diameter reduction and drive the HDPE pipe out of the diameter reduction frame 1.

[0072] S2, HDPE pipe traction: Pull the traction rope 13 from the pipe to be repaired to the front end of the reducer 1, connect the end of the HDPE pipe through the detection component 5, and drive the traction unit 2 to run, so that the traction rope 13 pulls the HDPE pipe into the pipe to be repaired.

[0073] S3, Drive Adjustment: The force on the HDPE pipe is detected by the detection component 5. If the force on the HDPE pipe is too great, the drive unit 3 is adjusted to increase the running speed of the reducing shaft 10. If the detection component 5 shows that the HDPE pipe traction status is abnormal, the drive unit 3 is adjusted to increase the running speed of the traction unit 2 until the force and traction status of the HDPE pipe return to normal.

[0074] S4, Real-time detection: The detection component 5 continuously detects the stress state of the HDPE pipe. Based on the detection results, S3 is repeated for adjustment. After the HDPE pipe is in place, the connection of the drive unit 3 is disconnected, the traction rope 13 is stored, and the reducing frame 1 and the traction frame 12 are taken out.

[0075] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and not restrictive.

[0076] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A synchronously controlled pipe lining repair device, characterized in that, include: Reduced diameter frame; Several reducing shafts are arranged horizontally and vertically and are rotatably inserted inside the reducing frame. The reducing roller is fixedly sleeved on the outside of the reducing shaft and rotates with the reducing shaft to squeeze and reduce the diameter of the HDPE pipe. The traction frame, symmetrically distributed with the reduced-diameter frame, serves as the basic framework for traction operations. The traction unit, installed inside the traction frame, is used to assist in the traction action of the HDPE pipe; The traction rope, connected to the traction unit, is used to directly pull the reduced-diameter HDPE pipe. The drive unit connects the reduced diameter shaft and the traction unit, and is used to transmit power to drive the reduced diameter shaft and the traction unit to operate; The detection component, installed at the end of the traction rope, is used to detect the force and status of the HDPE pipe during the traction process. The traction unit includes: The traction shaft is rotatably mounted on the inner walls of both sides of the traction frame; The traction disc is fixedly sleeved on the outside of the traction shaft. One end of the traction rope is wound around the outside of the traction disc. When the traction shaft rotates, it drives the traction disc to wind the traction rope to achieve traction. The inner walls on both sides of the traction frame are also rotatably fitted with drive shafts. One end of the reduced diameter shaft that extends out of the reduced diameter frame is fitted with a driven shaft. A drive unit is installed between the drive shaft and the driven shaft. The drive unit includes drive wheels that are respectively fixedly sleeved on the outside of the drive shaft and the driven shaft. The drive rope is looped around the outside of the drive wheel; Flanges are installed at the ends of the drive ropes, and the two flanges are used to connect the drive ropes on both sides by bolts. The traction frame also houses a drive assembly that simultaneously drives the drive shaft and the traction shaft to rotate. The drive assembly includes: A sliding groove is formed on the inner bottom wall of the traction frame; The motor mount is slidably disposed within the sliding groove; The drive motor is mounted on a motor mount. Two driven gears are staggered and fixedly sleeved on the outside of the drive shaft and traction shaft, respectively; The drive gear is sleeved on the outside of the drive motor shaft and meshes with the driven gear. The adjusting screw rotates through the inner wall of one side of the traction frame. The adjusting motor is installed on the inner wall of one side of the traction frame, and the motor shaft is connected to the end of the adjusting screw through a coupling. The bolt on the outside of the adjusting screw passes through the motor base.

2. The synchronously controlled pipe lining repair device according to claim 1, characterized in that: The ends of the reducing shafts on the same horizontal plane are connected by belt drive to ensure that multiple reducing shafts rotate synchronously, thereby driving the reducing rollers to extrude and reduce the diameter of the HDPE pipe synchronously.

3. The synchronously controlled pipe lining repair device according to claim 1, characterized in that: The detection components include: The detection frame is installed at the end of the traction rope; A sliding plate is slidably positioned within the detection frame; A distance sensor is installed on one side of the sliding plate and corresponds to the inner sidewall of the detection frame to detect the distance between the sliding plate and the inner wall of the detection frame when the sliding plate slides. The reset spring is connected between the sliding plate and the inner side wall of the detection frame.

4. The synchronously controlled pipe lining repair device according to claim 3, characterized in that: The detection components also include: A fixing rope is installed on the side of the sliding plate away from the distance sensor and slides through to the outside of the detection frame; The end of the fixing rope away from the sliding plate is used to connect the HDPE pipe.

5. The synchronously controlled pipe lining repair device according to claim 1, characterized in that: The end of the traction rope is fixedly connected to the end of the traction disc by rivet insertion to prevent the traction rope from slipping when the traction disc winds the traction rope, thus ensuring stable traction force.

6. A synchronously controlled pipe lining repair method, employing a synchronously controlled pipe lining repair device as described in any one of claims 1-5, characterized in that, The repair method includes the following steps: S1, HDPE pipe reduction: Place the reduction frame and traction frame at both ends of the pipe to be repaired, put one end of the HDPE pipe into the reduction rollers in the reduction frame, and the reduction rollers squeeze the outer diameter of the HDPE pipe to reduce the diameter and drive the HDPE pipe out of the reduction frame. S2, HDPE pipe traction: The traction rope is pulled from the pipe to be repaired to the front end of the reducer. The end of the HDPE pipe is connected through the detection component. The drive unit drives the traction unit to run, so that the traction rope pulls the HDPE pipe into the pipe to be repaired. S3, Drive Adjustment: The detection component detects the force on the HDPE pipe. If the HDPE pipe is under too much force, the drive unit is adjusted to increase the running speed of the reducing shaft. If the detection component shows that the HDPE pipe is in an abnormal traction state, the drive unit is adjusted to increase the running speed of the traction unit until the HDPE pipe is under normal force and traction state. S4, Real-time Detection: The detection component continuously monitors the stress state of the HDPE pipe. Based on the detection results, S3 is repeated for adjustment. Once the HDPE pipe is in place, the drive unit is disconnected, the traction rope is stored, and the reduction frame and traction frame are removed.

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