Pipeline non-excavation repair equipment and pipeline non-excavation repair method

The design of the support structure solved the problem of lining collapse, achieved stable curing and efficient correction during the pipeline repair process, ensured the integrity and safety of the lining during the curing process, and improved the repair quality and efficiency.

CN121654832APending Publication Date: 2026-03-13新乡市万宏建筑有限公司
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-26
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

During pipeline repair, the lining may collapse before curing, causing soil to squeeze and deform the lining, affecting the inner diameter of the repaired pipeline and the drainage effect. Existing curing lamps are insufficient in improving the quality of repair.

Method used

The system employs a support structure, including a servo motor, a rotating disk, hydraulic rods, and a support plate. The hydraulic rods drive the support wheels to press tightly against the inner wall of the lining, while the servo motor drives the support plate to swing back and forth. In conjunction with the bending section and rollers, this achieves the correction and protection of the lining, preventing damage caused by uneven force or jamming.

Benefits of technology

It effectively prevents uneven force on the end of the curing lamp, improves curing efficiency, ensures the integrity and stability of the lining during the curing process, reduces the risk of friction damage, and improves repair quality and efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121654832A_ABST
    Figure CN121654832A_ABST
Patent Text Reader

Abstract

The invention provides pipeline non-excavation repair equipment and a pipeline non-excavation repair method, and belongs to the technical field of pipeline repair. Comprising a curing lamp and further comprises a supporting structure, the supporting structure comprises a servo motor fixed to the end of the curing lamp, and a rotating disc is fixed to the end of an output shaft of the servo motor. By arranging a servo motor, a rotating disc and a supporting plate, when the lining deforms in the curing process, a second hydraulic rod firstly acts to drive a supporting wheel to be tightly attached to the inner wall of the lining, then a first hydraulic rod is started, the supporting plate can be pushed to move towards the deformation part of the lining, and correction operation is implemented; the first hydraulic rod adopts a gradual operation mode to gradually push the supporting plate to correct deformation of the lining, the situation that the lining is damaged due to stress concentration due to the fact that the correction force is too large and too fast can be avoided, and then all-around protection on the lining in the curing stage is achieved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

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

[0002] Before commencing trenchless pipeline repair work, a CCTV inspection robot is first used to conduct a comprehensive and detailed inspection of the pipeline's interior. This allows for the precise identification of pipeline defects, such as the location, extent, and location of the damage. After clarifying the situation, drainage is implemented. Once drainage is complete, various debris adhering to the pipeline's inner wall is thoroughly cleaned, removing silt, sand, and other impurities to provide a clean environment for subsequent work. After cleaning, specialized tools are used to seal the pipeline to prevent external impurities from entering. Next, based on the actual pipe diameter and the specific characteristics of the defect, a suitable lining material is selected. Using a pipeline crawler, the wound lining is steadily delivered to the repair point on the pipeline. Inflation ensures the lining fits tightly against the pipeline. The pipe wall is then irradiated with a curing lamp according to specific requirements. The lining material is coated with resin, which gradually hardens under the curing lamp and firmly bonds to the inner wall of the pipe, achieving effective repair. It is worth noting that if the damaged part of the pipe collapses inward at the same time, professional jacking equipment must be used before the above steps to slowly lift the collapsed part upward and restore the basic shape of the pipe. Then the lining is laid on the inner wall of the pipe. After the repair is completed, the repair effect must be inspected again using testing equipment. After confirming that there are no problems, the curing lamp and the protective film of the lining are removed together. This trenchless repair method is convenient to construct and greatly reduces the impact on the surrounding environment and traffic.

[0003] During pipeline repair, when encountering a damaged area accompanied by collapse, the collapsed area must be corrected first before the lining is laid. However, before the lining is cured, its strength is low, and soil will continue to fall at the damaged area, compressing the lining and causing it to deform. When the curing lamp cures the lining, the inner diameter of the pipeline will decrease, affecting drainage after the pipeline repair. There is a need for further optimization of the curing lamp in terms of improving the repair quality. Therefore, this application provides a trenchless pipeline repair device and a trenchless pipeline repair method to meet this need. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a trenchless pipeline repair device and a trenchless pipeline repair method to solve the problem of inward collapse of the inner lining during the pipeline repair process.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A trenchless pipeline repair device and method, comprising a curing lamp, and further comprising: The support structure includes a servo motor fixed to the end of the curing lamp. A rotating disk is fixed to the end of the output shaft of the servo motor. A hydraulic rod one and two hydraulic rods two are embedded in the circumference of the rotating disk. The spacing between the hydraulic rod one and the two hydraulic rods two is the same. A support plate is provided at the movable end of the hydraulic rod one. Support wheels are rotatably connected to the movable ends of the two hydraulic rods two. A fixing component is provided at the movable end of the hydraulic rod. The fixing component is used to fix the support plate to the movable end of the hydraulic rod one. The top of the support plate is provided with an arc-shaped surface. During pipe repair, the support plate with an arc-shaped surface that matches the curvature of the inner wall of the pipe is replaced according to the inner diameter of the pipe.

[0006] Preferably, the top of the support plate has a through groove, and the edge of the through groove has an arc-shaped chamfer.

[0007] Preferably, the inner wall of the through groove is rotatably connected with a plurality of rollers, and the highest point of the circumferential surface of the rollers is in the same plane as the top of the support plate.

[0008] Preferably, the end of the roller is provided with an arc-shaped chamfer.

[0009] Preferably, the end of the support plate away from the curing lamp is provided with a bending portion, and the angle between the bottom of the support plate and the bending portion is an obtuse angle.

[0010] Preferably, both sides of the support plate and the first bending part are provided with a second bending part, and the opening of the second bending part faces the middle of the support plate.

[0011] Preferably, the fixing assembly includes two connecting plates fixed to a movable end of the hydraulic rod. Each end of the two connecting plates is fixed with a fixing block. When the support plate is fixed, the bent portions on both sides of the support plate are fitted onto the surface of the fixing block. The bottom of the bent portion is threaded with a fixing bolt, and the top of the fixing bolt abuts against the surface of the fixing block. The end of the fixing block away from the curing lamp is provided with a guide surface.

[0012] Preferably, a reinforcing rib is fixed to the bottom of the connecting plate, and the other end of the reinforcing rib is fixed to the surface of the hydraulic rod II movable rod. The opening direction of the reinforcing rib is opposite to the opening direction of the connecting plate.

[0013] Preferably, a camera is fixed to the top of the end of the curing lamp away from the support plate, a mounting base is fixed to the surface of the bent portion of the support plate, and a camera is fixed to the mounting base.

[0014] A trenchless pipeline repair method, applied to a trenchless pipeline repair device as described above, includes the following steps: S1: The pipeline robot is used to detect and determine the location of the leak in the pipeline to be repaired. After the location is determined, the pipeline to be repaired is drained and cleaned of debris, and then the pipeline is sealed. S2: Fabricate a pipe repair liner according to the pipe's inner diameter; S3: Pull the liner into the pipe and use gas to expand the liner against the inner wall of the pipe; S4: Pull the curing lamp into the lining and cure the lining with the curing lamp; S5: After curing is complete, pull the curing lamp and the inner protective film of the lining out of the inner wall of the pipe together.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: In the above scheme, by setting up a servo motor, a rotating disk, and a support plate, when the lining deforms during the curing process, hydraulic rod two acts first, driving the support wheel to fit tightly against the inner wall of the lining. This effectively prevents damage to the curing lamp end due to uneven force during subsequent correction operations on the deformed area. Then, hydraulic rod one is activated, pushing the support plate towards the deformed area of ​​the lining for correction. While the support plate supports the deformed area, the servo motor operates synchronously, driving the support plate to oscillate back and forth in the deformed area of ​​the lining. This expands the area supported by the support plate in a single operation and prevents the support plate from remaining in the same position for extended periods, ensuring continuous and effective curing of the lining by the curing lamp, significantly improving curing efficiency. Furthermore, during the oscillation of the support plate, hydraulic rod one uses a progressive operation method, gradually pushing the support plate to correct the lining deformation. This avoids damage to the lining due to stress concentration caused by excessive or rapid correction force, thus achieving comprehensive protection during the lining curing stage.

[0016] By setting up a bending section, when the support plate is performing a straightening operation on the lining, if the deformation area of ​​the lining is large, the swinging of the support plate alone cannot achieve full straightening. In this case, the support plate needs to move along the internal axial direction of the lining. During the gradual straightening process, the lining in the forward direction will be supported by a bending section. When the support plate is advanced, it can effectively disperse stress and prevent the lining from being damaged due to excessive stress concentration at the edge of the support plate in the forward direction. This further enhances the protection of the lining and provides double protection for the smooth progress of the straightening operation and the quality assurance of the lining.

[0017] By setting up the second bending section, once the side of the support plate comes into contact with the deformed part of the lining during the continuous swing of the support plate, the second bending section will play a guiding role. The second bending section guides the lining to contact the top of the support plate, effectively avoiding the lining from getting stuck on the side of the support plate, reducing the risk of damage to the lining caused by the sticking, and ensuring the integrity of the lining throughout the entire repair process, ensuring the smooth progress of the trenchless pipeline repair work.

[0018] By incorporating rollers, the rollers mounted on the surface of the support plate transform the original sliding friction into rolling friction during the straightening operation of the lining. This transformation effectively reduces the coefficient of friction between the support plate and the lining, greatly reducing the frictional force between them. This not only reduces the risk of the lining being damaged by friction and avoids scratches and wear on the lining surface, but also further optimizes the protection of the lining, ensuring its integrity throughout the straightening process and allowing the repair work to be carried out more efficiently and safely.

[0019] By setting a fixing component, when repairing the pipeline, different support plates can be replaced according to the inner diameter of the pipeline. The position of the second bend of the different support plates remains unchanged, but the curvature of the arc surface is different, so that the support plate frame fits against the inner wall of the lining. At the same time, the fixing block is inserted into the inside of the second bend, which can support both sides of the support plate at the same time, making the support plate more stable during use. Attached Figure Description

[0020] The accompanying drawings, which form part of this specification, illustrate embodiments of the present disclosure and, together with the specification, further serve to explain the principles of the present disclosure and enable those skilled in the art to implement and use the present disclosure.

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a three-dimensional structural diagram of the support structure of the present invention; Figure 3 This is a cross-sectional view of the rotating disk of the present invention; Figure 4 This is a three-dimensional structural diagram of the connecting plate of the present invention; Figure 5 This is a three-dimensional structural diagram of the reinforcing ribs of the present invention; Figure 6 This is a three-dimensional structural diagram of the roller of the present invention.

[0022] In the diagram: 1. Curing lamp; 2. Camera 1; 3. Camera 2; 4. Support structure; 5. Servo motor; 6. Rotary disk; 7. Hydraulic rod 1; 8. Hydraulic rod 2; 9. Support wheel; 10. Support plate; 11. Bending part 1; 12. Bending part 2; 13. Through groove; 14. Roller; 15. Arc surface; 16. Fixing component; 17. Connecting plate; 18. Fixing block; 19. Guide surface; 20. Fixing bolt; 21. Reinforcing rib; 22. Mounting base.

[0023] As shown in the figure, specific structures and devices are labeled in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0024] The trenchless pipeline repair equipment and method provided by the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some well-known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0025] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0026] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0027] like Figures 1-6 As shown, an embodiment of the present invention provides a trenchless pipeline repair device and a trenchless pipeline repair method, including a curing lamp 1, and further comprising: Support structure 4 includes a servo motor 5 fixed to the end of curing lamp 1. A rotating disk 6 is fixed to the end of the output shaft of the servo motor 5. A hydraulic rod 7 and two hydraulic rods 8 are embedded in the circumference of the rotating disk 6. The spacing between hydraulic rod 7 and the two hydraulic rods 8 is the same. A support plate 10 is provided at the movable end of hydraulic rod 7. Support wheels 9 are rotatably connected to the movable ends of the two hydraulic rods 8. A fixing component 16 is provided at the movable end of the hydraulic rod. The fixing component 16 is used to fix the support plate 10 to the movable end of hydraulic rod 7. An arc surface 15 is provided on the top of the support plate 10. During pipe repair, the support plate 10 with the same arc surface 15 as the inner wall of the pipe is replaced according to the inner diameter of the pipe. When deformation occurs during the curing process of the lining, hydraulic rod 8 drives the support wheel 9 to first fit against the inner wall of the lining to prevent uneven force on the end of curing lamp 1; then hydraulic rod 7 pushes the support plate 10 to correct the deformed part. Servo motor 5 drives the rotating disk 6 to rotate, causing the support plate 10 to swing, increasing the single support area, preventing the support plate 10 from staying in the same position for too long, and ensuring that the curing lamp 1 continuously and efficiently cures the lining. Meanwhile, the replaceable arc-shaped surface 15 ensures that the support plate 10 can fit the inner wall of pipes with different inner diameters, improving the applicability of the equipment. Rotary seats are provided at the end of the curing lamp 1 away from the rotating disk 6 and at the end of the rotating disk 6 away from the curing lamp 1. The pull rope can be tied to the rotating seat, so that the rotating disk 6 will not drive the pull rope to rotate during rotation. The curing lamp 1 is electrically connected to an external power source through wires. The hydraulic rod 7 and the two hydraulic rods 8 are connected to an external hydraulic pump through pipes. The wires and pipes are wrapped with protective tape on the surface of the pull rope to prevent damage to the wires and pipes under tension. The servo motor 5 is mounted on the end of the curing lamp 1 through a bracket. The rotating disk 6 not only serves to install the hydraulic rod 7 and the two hydraulic rods 8, but also allows the rotating disk 6 to slide on the surface of the bracket, improving the stability of the rotating disk 6 during swing. This allows the output shaft of the servo motor 5 to only provide torque force, without having to provide stabilizing force during the swing of the rotating disk 6, thus improving the durability of the servo motor 5.

[0028] like Figures 1-3 and Figure 6 As shown, in this embodiment, the top of the support plate 10 is provided with a through groove 13, and the edge of the through groove 13 is provided with an arc-shaped chamfer. The design of the through groove 13 provides space for the subsequent installation of the roller 14, and the arc-shaped chamfer can prevent the edge of the through groove 13 from being too sharp. During the contact between the support plate 10 and the inner lining, it prevents the inner lining from being damaged by scratches, further ensuring the integrity of the inner lining. At the same time, the through groove 13 allows the light from the curing lamp 1 to pass through the support plate 10, improving the curing efficiency.

[0029] like Figures 1-3 and Figure 6As shown, in this embodiment, a number of rollers 14 are rotatably connected to the inner wall of the through groove 13. The highest point of the circumferential surface of the rollers 14 is in the same plane as the top of the support plate 10. When the support plate 10 corrects the lining, the rollers 14 convert the sliding friction between the support plate 10 and the lining into rolling friction. This greatly reduces the friction between the two, reduces the wear on the lining, helps to extend the service life of the lining, and better protects the lining.

[0030] like Figure 2 As shown in this embodiment, the end of the roller 14 is provided with an arc-shaped chamfer. The arc-shaped chamfer prevents the end of the roller 14 from scratching the liner due to sharp edges, and also avoids stress concentration on the liner at both ends of the roller 14, further reducing the risk of damage to the liner during operation and providing comprehensive protection for the liner during the repair process.

[0031] like Figures 1-3 and Figure 6 As shown, in this embodiment, a bending portion 11 is provided at the end of the support plate 10 away from the curing lamp 1. The angle between the bottom of the support plate 10 and the bending portion 11 is an obtuse angle. When the deformation area of ​​the lining is large and the swing of the support plate 10 alone cannot achieve full correction, the support plate 10 needs to move along the axial direction inside the lining. During this process, the bending portion 11 can support the lining in the forward direction, effectively disperse stress, and prevent the lining from being damaged due to excessive stress concentration at the edge of the support plate 10 in the forward direction, thus providing additional protection for the lining.

[0032] like Figures 1-3 and Figure 6 As shown in this embodiment, both sides of the support plate 10 and the first bending part 11 are provided with a second bending part 12. The opening of the second bending part 12 faces the middle of the support plate 10. During the swinging process of the support plate 10, if the side encounters the deformed part of the inner lining, the second bending part 12 can guide the inner lining to prevent the inner lining from getting stuck on the side of the support plate 10 and avoid damage to the inner lining due to the sticking. In addition, the second bending part 12 also provides a structural foundation for fixing the support plate 10. At the same time, the second bending part 12 can also improve the structural strength of the support plate 10, prevent the support plate 10 from deforming in the axial direction of the second bending part 12, and improve the stability and durability of the support plate 10 in use.

[0033] like Figure 2 , Figure 4 and Figure 5As shown, in this embodiment, the fixing component 16 includes two connecting plates 17 fixed to the movable end of the hydraulic rod 7. Each of the two connecting plates 17 has a fixing block 18 fixed to its end. When the support plate 10 is fixed, the bent portions 12 on both sides of the support plate 10 are fitted onto the surface of the fixing block 18. A fixing bolt 20 is threaded to the bottom of the bent portion, and the top of the fixing bolt 20 abuts against the surface of the fixing block 18. A guide surface 19 is provided at the end of the fixing block 18 away from the curing lamp 1. This fixing component 16 makes it convenient to replace support plates 10 with different arc surfaces 15 according to the inner diameter of the pipe. With the position of the bent portions 12 of different support plates 10 remaining unchanged, the fixing block 18 is inserted into the inside of the bent portions 12, which can simultaneously support both sides of the support plate 10, enhancing the stability of the support plate 10 during use. The guide surface 19 facilitates the fitting of the bent portions 12 into the fixing block 18.

[0034] like Figure 5 As shown, in this embodiment, a reinforcing rib 21 is fixed to the bottom of the connecting plate 17. The other end of the reinforcing rib 21 is fixed to the surface of the movable rod of the hydraulic rod 8. The opening direction of the reinforcing rib 21 is opposite to the opening direction of the connecting plate 17. The reinforcing rib 21 enhances the overall strength of the fixing component 16, making the support plate 10 more stable after fixing. During the operation of the equipment, it can effectively withstand various forces, reduce component damage caused by shaking or uneven force, and extend the service life of the equipment.

[0035] like Figure 1 As shown in this embodiment, a camera 2 is fixed to the top of the end of the curing lamp 1 away from the support plate 10, and a mounting base 22 is fixed to the surface of the bent portion 11 of the support plate 10. A camera 3 is fixed on the mounting base 22. Cameras 2 and 3 provide real-time visual feedback to the operator, allowing the operator to understand the repair progress, lining deformation, and equipment operating status in a timely manner, so as to make accurate operational decisions and improve the accuracy and efficiency of the repair work.

[0036] A trenchless pipeline repair method, applying the aforementioned trenchless pipeline repair equipment, includes the following steps: S1: The pipeline robot is used to detect and determine the location of the leak in the pipeline to be repaired. After the location is determined, the pipeline to be repaired is drained and cleaned of debris, and then the pipeline is sealed. S2: Fabricate a pipe repair liner according to the pipe's inner diameter; S3: Pull the liner into the pipe and use gas to expand the liner against the inner wall of the pipe; S4: Pull curing lamp 1 into the lining and cure the lining through curing lamp 1; S5: After curing is complete, pull the curing lamp 1 and the inner wall protective film of the lining out of the inner wall of the pipe.

[0037] Working principle: In the preparation stage of trenchless pipeline repair work, the pipeline robot is first used to determine the location of pipeline leakage, and the pipeline is drained, cleaned and sealed. Then, the inner lining is made according to the inner diameter of the pipeline and pulled into the pipeline. Gas is used to expand and fit it to the inner wall of the pipeline. Curing lamp 1 is introduced into the lining for curing. If the lining deforms during curing, support structure 4 is moved to the deformed area. Hydraulic rod 2 8 drives support wheel 9 to press tightly against the inner wall of the lining, preventing uneven force on the end of curing lamp 1. Then, hydraulic rod 1 7 is activated to push support plate 10 to correct the deformed area. At the same time, servo motor 5 drives rotating disk 6 to make support plate 10 swing back and forth in the deformed area, which not only increases the single support area but also prevents support plate 10 from staying in the same position for a long time, ensuring that curing lamp 1 continues to cure effectively. Hydraulic rod 1 7 is pushed progressively. To prevent damage to the lining due to excessive straightening force, when the deformation area of ​​the lining is large, the support plate 10 needs to move axially. The lining in the forward direction is supported by the bending part 11 to disperse the stress. During the swinging process of the support plate 10, if the side touches the deformed part of the lining, the bending part 2 12 will guide the lining to prevent jamming. In addition, when the support plate 10 straightens the lining, the roller 14 in the through groove 13 will change the sliding friction into rolling friction to reduce the friction. After the deformed part is straightened and cured, the support wheel 9 and the support plate 10 are reset, and then the curing lamp 1 is moved again to cure the entire lining. After the lining has cured, the curing lamp 1 and the inner wall protective film of the lining are pulled out of the pipe together; In the actual repair process, a support plate 10 with an arc-shaped surface 15 that matches the inner diameter of the pipe can be selected. The second bend 12 of the support plate 10 is then fitted onto the fixing block 18, and the fixing bolts 20 are tightened to complete the fixation. The reinforcing ribs 21 at the bottom of the connecting plate 17 will enhance the stability of the support plate 10. In addition, the camera 2 at one end of the curing lamp 1 and the camera 3 at the bend 11 of the support plate 10 can monitor the inside of the pipe and the correction area, assisting in the repair work.

[0038] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details have been described in detail in the above preferred embodiments; however, those skilled in the art will fully understand this invention even without these detailed descriptions.

[0039] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A trenchless pipeline repair device, comprising a curing lamp (1), characterized in that, Also includes: The support structure (4) includes a servo motor (5) fixed at the end of the curing lamp (1). The output shaft end of the servo motor (5) is fixed with a rotating disk (6). The circumferential surface of the rotating disk (6) is inlaid with a hydraulic rod one (7) and two hydraulic rod two (8). The interval between the hydraulic rod one (7) and the two hydraulic rod two (8) is the same. The movable end of the hydraulic rod one (7) is provided with a support plate (10). The movable ends of the two hydraulic rod two (8) are rotatably connected with support wheels (9). The movable end of the hydraulic rod is provided with a fixing component (16). The fixing component (16) is used to fix the support plate (10) to the movable end of the hydraulic rod one (7). The top of the support plate (10) is provided with an arc surface (15). During pipeline repair, the support plate (10) with the same arc surface (15) as the inner diameter of the pipeline is replaced according to the inner diameter of the pipeline.

2. The trenchless pipeline repair equipment according to claim 1, characterized in that, The top of the support plate (10) is provided with a through groove (13), and an arc-shaped chamfer is provided at the edge of the through groove (13).

3. The trenchless pipeline repair equipment according to claim 2, characterized in that, The inner wall of the through groove (13) is rotatably connected to several rollers (14), and the highest point of the circumferential surface of the rollers (14) is in the same plane as the top of the support plate (10).

4. The trenchless pipeline repair equipment according to claim 3, characterized in that, The end of the roller (14) is provided with an arc-shaped chamfer.

5. The trenchless pipeline repair equipment according to claim 1, characterized in that, The support plate (10) has a bending part (11) at the end away from the curing lamp (1), and the angle between the bottom of the support plate (10) and the bending part (11) is an obtuse angle.

6. The trenchless pipeline repair equipment according to claim 1, characterized in that, Both sides of the support plate (10) and the first bending part (11) are provided with a second bending part (12), and the opening of the second bending part (12) faces the middle of the support plate (10).

7. The trenchless pipeline repair equipment according to claim 1, characterized in that, The fixing component (16) includes two connecting plates (17) fixed to the movable end of the hydraulic rod (7). Each end of the two connecting plates (17) is fixed with a fixing block (18). When the support plate (10) is fixed, the two bent portions (12) on both sides of the support plate (10) are fitted onto the surface of the fixing block (18). The bottom of the bent portion is threaded with a fixing bolt (20). The top of the fixing bolt (20) abuts against the surface of the fixing block (18). The end of the fixing block (18) away from the curing lamp (1) is provided with a guide surface (19).

8. The trenchless pipeline repair equipment according to claim 7, characterized in that, The bottom of the connecting plate (17) is fixed with a reinforcing rib (21), and the other end of the reinforcing rib (21) is fixed to the surface of the movable rod of the hydraulic rod (8). The opening direction of the reinforcing rib (21) is opposite to the opening direction of the connecting plate (17).

9. The trenchless pipeline repair equipment according to claim 5, characterized in that, A camera (2) is fixed to the top of the end of the curing lamp (1) away from the support plate (10). A mounting base (22) is fixed to the surface of the bent part (11) of the support plate (10). A camera (3) is fixed to the mounting base (22).

10. A trenchless pipeline repair method, applied to a trenchless pipeline repair device as described in any one of claims 1-9, characterized in that, Includes the following steps: S1: The pipeline robot is used to detect and determine the location of the leak in the pipeline to be repaired. After the location is determined, the pipeline to be repaired is drained and cleaned of debris, and then the pipeline is sealed. S2: Fabricate a pipe repair liner according to the pipe's inner diameter; S3: Pull the liner into the pipe and use gas to expand the liner against the inner wall of the pipe; S4: Pull the curing lamp (1) into the lining and cure the lining by the curing lamp (1); S5: After curing, pull the curing lamp (1) and the inner wall protective film of the lining out of the inner wall of the pipe.