Municipal pipeline CIPP flip-over in-situ curing repair device and construction method

Abstract

The present invention discloses a municipal pipeline and CIPP flip-type in-situ curing repair device and a construction method, comprising a damaged pipeline body, wherein a flip mechanism and a box are respectively provided on both sides of the damaged pipeline body, the flip mechanism comprises a shell, the inner cavity of the shell is rotatably connected to a coil shaft, the surface of the coil shaft is wound with a lining resin tube, the lining resin tube extends to the inner cavity of the damaged pipeline body away from the shell, the right side of the top of the shell is connected to a steam pipe, and the top of the box is provided with a driving mechanism. The present invention repairs the inner wall of the damaged pipeline body through the setting of the flip mechanism, and then, with the coordinated use of the driving mechanism and the soft transmission strip, the propulsion mechanism drives the adjustment mechanism and the extrusion mechanism to move horizontally in the inner cavity of the lining resin tube, so that the lining resin tube is tightly fitted to the inner wall of the damaged pipeline body, thereby achieving the purpose of fitting and tightening and a wide range of adaptability.

Description

Technical Field

[0001] The present invention relates to the technical field of municipal pipeline facility maintenance, and in particular to a municipal pipeline CIPP flip-over type in-situ curing repair device and a construction method. Background Art

[0002] CIPP is a trenchless underground pipeline repair process that involves impregnating a lined pipe with a polymer coating (PU or PE) with polyester or epoxy resin before it is flipped into a sewer or sewage pipe using water gravity or compressed air pressure. Once the liner is fully installed in the main pipeline, it is heated with water or steam to cause a chemical reaction in the resin, which begins to cure over a period of approximately 4-8 hours. Once the liner cures, a new structural pipe is formed within the original pipe.

[0003] The existing CIPP flip-over in-situ curing repair method has the following defects:

[0004] Conventional devices used for CIPP in-situ curing rely solely on gas agitation to adhere the lining repair material to the inner wall of the pipe. This bonding method results in bubbles or loose fitting between the pipe and the lining, making it impossible for the lining repair material to effectively repair the damaged pipe.

[0005] After the lining is laid, there is no rolling piece that is adapted to the diameter of the damaged pipe to effectively roll the lining, and the diameter of the rolling piece is relatively fixed, which cannot be widely used for damaged pipes of different diameters.

[0006] Based on this, the present invention provides a municipal pipeline and CIPP flip-type in-situ curing repair device and construction method to solve the above problems. Summary of the Invention

[0007] The purpose of the present invention is to provide a municipal pipeline CIPP flip-type in-situ curing repair device and construction method, which has the advantages of fitting tightly and having a wide range of adaptability. It solves the problem that traditional devices used for CIPP in-situ curing method rely solely on gas agitation to make the lining repair material fit the inner wall of the pipeline. This fitting method causes bubbles or loose fitting between the pipeline and the lining, making it impossible for the lining repair material to effectively repair the damaged pipeline. After the lining is laid, there is no rolling piece that is adapted to the diameter of the damaged pipeline to effectively roll the lining, and the diameter of the rolling piece is relatively fixed, which cannot be widely used for damaged pipelines of different diameters.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] The municipal pipeline CIPP flip-type in-situ curing repair device includes a damaged pipe body, a flip mechanism and a box body are respectively provided on both sides of the damaged pipe body, the flip mechanism includes a shell, the inner cavity of the shell is rotatably connected to a coil shaft, the surface of the coil shaft is wrapped with a lined resin tube, the end of the lined resin tube away from the shell extends to the inner cavity of the damaged pipe body, the right side of the top of the shell is connected to a steam pipe, the top of the box body is provided with a driving mechanism, the left side of the inner cavity of the damaged pipe body is provided with a sliding disk, the top and bottom of the sliding disk are The outer side of the sliding disk is provided with an adjusting mechanism, and the front and rear sides of the adjusting mechanism are provided with a propulsion mechanism. The driving mechanism includes a motor fixedly connected to the left side of the top of the box body, and the output shaft of the motor passes through the inner cavity of the box body and is fixedly connected to the driving bevel gear. The front and rear sides of the box body are penetrated by a rotating column, and the rotating column is fixedly connected to the driven bevel gear at one end of the inner cavity of the box body. The adjusting mechanism includes a card plate located at the front and rear sides of the sliding disk, and the number of the card plates is four. The front ends of the two card plates on the rear side are fixedly connected The telescopic column, the rear ends of the two front card plates are provided with rectangular sliding grooves adapted to the telescopic column, the extrusion mechanism includes sliding columns that pass through the top and bottom of the sliding disk respectively, one end of the sliding column located in the inner cavity of the sliding disk is fixedly connected to the anti-slip plate, the other end of the sliding column is fixedly connected to the extrusion plate, the surface of the sliding column is sleeved with a spring 1, the two ends of the spring 1 are respectively welded to the extrusion plate and the sliding disk, the front and rear sides of the two sliding columns are fixedly connected to the limiting column, one end of the limiting column passes through the sliding disk, the other end is fixedly connected to the extrusion plate, the surface of the extrusion plate is fixedly connected There is an arc-shaped rubber pad, and the front and rear sides of the box are connected to an L-shaped guide tube. The side of the rotating column away from the driven bevel gear is fixedly connected to a flexible transmission strip, and the flexible transmission strip is located in the inner cavity of the L-shaped guide tube. The propulsion mechanism includes a rotating shaft, and a roller is installed on the surface of the rotating shaft. The rotating shaft drives the roller to rotate. Spring 2 is sleeved on both sides of the surface of the rotating shaft, and the two ends of the spring 2 are respectively slidably connected to the clamping plate and the rotating shaft. A threaded propulsion ring is fixedly connected to the surface of the roller, and the end of the flexible transmission strip away from the rotating column is fixedly connected to the propulsion mechanism.

[0010] Preferably, a threaded rotating rod is provided through the side of the front card plate away from the sliding disk, and three threaded grooves adapted to the threaded rotating rod are provided on the side of the telescopic column away from the sliding disk. A plurality of limit blocks are fixedly connected to the opposite sides of the four card plates, and the front and rear ends of both sides of the sliding disk are provided with limit through holes adapted to the limit blocks.

[0011] The method for using the municipal pipeline CIPP flip-over in-situ curing repair device is as follows:

[0012] 1. In actual use, the user first presses the left side of the shell against the right side of the damaged pipe body, then injects steam into the inner cavity of the shell through the steam pipe, and at the same time rotates the coil shaft so that the inner resin-lined tube enters the inner cavity of the damaged pipe body under the blowing of steam, so that the surface of the inner resin-lined tube fits the inner wall of the damaged pipe body;

[0013] Second, place the sliding plate into the left side of the damaged pipe body. Spring 1 pushes the extrusion plate to push the curved rubber pad to fit tightly against the inner wall of the resin-lined pipe.

[0014] 3. Next, the user rotates the threaded rod to separate the front and rear clamping plates. The user pulls the clamping plate on the same side back and forth, causing the limit blocks to engage with the inner cavities of different limit holes, limiting the position of the clamping plate so that the clamping plate is adapted to the diameter and length of the pipe. The threaded rod is then re-tightened to fix the position of the two clamping plates on the same side.

[0015] Fourth, at the same time, the rotating shaft, driven by the clamping plate, moves back and forth in the inner cavity of the damaged pipe body, so that the threaded push ring fits tightly against the inner wall of the resin-lined pipe;

[0016] 5. Finally, the user turns on the motor, and the motor drives the driving bevel gear to rotate. Driven by the driving bevel gear, the two driven bevel gears rotate in opposite directions, and then the rotating column and the flexible transmission bar rotate in the inner cavity of the L-shaped guide tube. The flexible transmission bar drives the rotating shaft to rotate, and the two rollers rotate in the inner cavity of the resin-lined tube. Due to the shape characteristics of the threaded propulsion ring and the simultaneous relative opposite rotation of the two rollers, the rollers drive the sliding disk, the extrusion mechanism and the adjustment mechanism to move left and right on the inner wall of the resin-lined tube through the threaded propulsion ring, and grind the inner wall of the resin-lined tube, so that the surface of the resin-lined tube fits more closely with the inner wall of the damaged pipe body.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention repairs the inner wall of the damaged pipe body by setting a flip mechanism. Subsequently, under the coordinated use of the driving mechanism and the flexible transmission strip, the propulsion mechanism drives the adjustment mechanism and the extrusion mechanism to move horizontally in the inner cavity of the lining resin pipe, so that the lining resin pipe is tightly fitted to the inner wall of the damaged pipe body, thereby achieving the purpose of fitting and tightening and a wide range of adaptability. The municipal pipeline and CIPP flip-type in-situ curing repair device and construction method solve the problem that the traditional device used for the CIPP in-situ curing method relies solely on gas agitation to make the lining repair material fit the inner wall of the pipe. This fitting method causes bubbles or loose fitting between the pipe and the lining, making it impossible for the lining repair material to effectively repair the damaged pipe. After the lining is laid, there is no rolling piece adapted to the diameter of the damaged pipe to effectively roll the lining, and the diameter of the rolling piece is relatively fixed, which cannot be widely used for damaged pipes of different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a top cross-sectional schematic diagram of the structure of the present invention;

[0020] Figure 2 For the present invention Figure 1 A partial enlarged view of point A;

[0021] Figure 3 is a three-dimensional cross-sectional schematic diagram of the driving mechanism of the present invention;

[0022] Figure 4 It is a three-dimensional schematic diagram of the sliding disk, the squeezing mechanism and the propulsion mechanism of the present invention;

[0023] Figure 5 is a three-dimensional schematic diagram of the adjustment mechanism of the present invention;

[0024] Figure 6 is a three-dimensional schematic diagram of the propulsion mechanism of the present invention;

[0025] Figure 7 It is a three-dimensional schematic diagram of the extrusion mechanism of the present invention;

[0026] Figure 8 It is a three-dimensional schematic diagram of the sliding disk of the present invention.

[0027] In the figure: 1. Broken pipe body; 2. Flipping mechanism; 21. Shell; 22. Coil shaft; 23. Lined resin pipe; 24. Steam pipe; 3. Driving mechanism; 31. Motor; 32. Driving bevel gear; 33. Rotating column; 34. Driven bevel gear; 35. L-shaped guide tube; 4. Box; 5. Sliding plate; 6. Extrusion mechanism; 61. Sliding column; 62. Anti-slip plate; 63. Extrusion plate; 64. Arc rubber pad; 65. Spring 1; 66. Limiting column; 7. Adjusting mechanism; 71. Card plate; 72. Telescopic column; 73. Rectangular slide; 74. Threaded rotating rod; 75. Threaded groove; 8. Propelling mechanism; 81. Rotating shaft; 82. Roller; 83. Spring 2; 84. Threaded propulsion ring; 9. Flexible transmission strip; 10. Limiting block; 11. Limiting through hole. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0029] See also Figure 1-8The present invention provides a technical solution: a municipal pipeline CIPP flip-type in-situ curing repair device, comprising a damaged pipe body 1, a flip mechanism 2 and a box 4 are respectively provided on both sides of the damaged pipe body 1, the flip mechanism 2 comprises a shell 21, the inner cavity of the shell 21 is rotatably connected to a coil shaft 22, the surface of the coil shaft 22 is wound with a lined resin tube 23, the lined resin tube 23 extends to the inner cavity of the damaged pipe body 1 away from the end of the shell 21, the right side of the top of the shell 21 is connected to a steam pipe 24, the top of the box 4 is provided with a driving mechanism 3, the left side of the inner cavity of the damaged pipe body 1 is provided with a sliding disk 5, the top and bottom of the sliding disk 5 are provided with a squeezing mechanism 6, the sliding disk 5 An adjusting mechanism 7 is provided on the outside of the adjusting mechanism 7. A propulsion mechanism 8 is provided on the front and rear sides of the adjusting mechanism 7. The driving mechanism 3 includes a motor 31 fixedly connected to the left side of the top of the box body 4. The output shaft of the motor 31 passes through the inner cavity of the box body 4 and is fixedly connected to a driving bevel gear 32. A rotating column 33 is provided on the front and rear sides of the box body 4. One end of the rotating column 33 located in the inner cavity of the box body 4 is fixedly connected to a driven bevel gear 34. The adjusting mechanism 7 includes card plates 71 located on the front and rear sides of the sliding disk 5. The number of the card plates 71 is four. The front ends of the two card plates 71 on the rear side are fixedly connected to a telescopic column 72. The rear ends of the two card plates 71 on the front side are provided with a rectangular slide groove 73 adapted to the telescopic column 72. 6 includes sliding columns 61 that pass through the top and bottom of the sliding plate 5 respectively, and one end of the sliding column 61 located in the inner cavity of the sliding plate 5 is fixedly connected to the anti-slip plate 62, and one end of the sliding column 61 located on the outside of the sliding plate 5 is fixedly connected to the extrusion plate 63. The surface of the sliding column 61 is sleeved with a spring 65, and the two ends of the spring 65 are welded to the extrusion plate 63 and the sliding plate 5 respectively. The front and rear sides of the two sliding columns are fixedly connected to the limiting columns 66, one end of the limiting column 66 passes through the sliding plate 5, and the other end is fixedly connected to the extrusion plate 63. The surface of the extrusion plate 63 is fixedly connected with an arc-shaped rubber pad 64. Through the setting of the extrusion mechanism 6, the sliding column 61 and the spring 65 are used in conjunction, so that the expansion range of the extrusion plate 63 can be adjusted according to the roller The range after 82 contacts the inner wall of the lined resin tube 23 is self-adjusted. The coordinated use of the arc-shaped rubber pad 64 and the spring 65 has a good squeezing effect on the inner wall of the lined resin tube 23. The driving mechanism 3 includes a motor 31 fixedly connected to the left side of the top of the box body 4. The output shaft of the motor 31 passes through the inner cavity of the box body 4 and is fixedly connected to the driving bevel gear 32. The front and rear sides of the box body 4 are both penetrated by a rotating column 33. The rotating column 33 is located at one end of the inner cavity of the box body 4 and is fixedly connected to the driven bevel gear 34. Through the setting of the driving mechanism 3, the coordinated use of the driving bevel gear 32 and the driven bevel gear 34 can provide power to each soft transmission bar 9 of the chain at the same time, and can also make the two soft transmission bars 9 rotate in opposite directions relative to each other.The cam 72 is fixed to the front of the gear 71 and the rear of the gear 72 is fixed to the gear 71, and the cam 72 is fixed to the gear 71. By setting up the propulsion mechanism 8, the roller 82 and the threaded propulsion ring 84 are used in conjunction with each other, according to the working principle of screw propulsion, so that the roller 82 can move horizontally in the inner cavity of the damaged pipe body 1, and then the sliding plate 5 can move left and right in the inner cavity of the resin-lined pipe 23.

[0030] As a preferred case of this embodiment: a threaded turning rod 74 is provided on the side of the front side clamping plate 71 away from the sliding disk 5, and three threaded grooves 75 that are compatible with the threaded turning rod 74 are provided on the side of the telescopic column 72 away from the sliding disk 5. A plurality of limit blocks 10 are fixedly connected to the opposite sides of the four clamping plates 71, and the front and rear ends of both sides of the sliding disk 5 are provided with limit through holes 11 that are compatible with the limit blocks 10. By using the threaded turning rod 74 and the threaded grooves 75 in combination, the front and rear distances of the clamping plates 71 are adjusted, so that the repair device can be adapted to pipes of different diameters, thereby expanding the scope of use of the repair device. The use of the limit blocks 10 and the limit through holes 11 in combination allows the position of the clamping plate 71 to be limited, thereby improving the stability of the clamping plate 71 during actual use.

[0031] The method for using the municipal pipeline CIPP flip-over in-situ curing repair device is as follows:

[0032] 1. In actual use, the user first places the left side of the shell 21 against the right side of the damaged pipe body 1, then injects steam into the inner cavity of the shell 21 through the steam pipe 24, and simultaneously rotates the coil shaft 22, so that the inner lining resin tube 23 enters the inner cavity of the damaged pipe body 1 under the blowing of steam, so that the surface of the inner lining resin tube 23 is in contact with the inner wall of the damaged pipe body 1;

[0033] Second, the sliding plate 5 is then placed into the left side of the inner cavity of the damaged pipe body 1. Due to the push of the spring 1 65, the squeezing plate 63 pushes the arc-shaped rubber pad 64 to fit tightly against the inner wall of the resin-lined pipe 23;

[0034] 3. Next, the user rotates the threaded rod 74 to separate the front and rear clamping plates 71. The user pulls the clamping plate 71 on the same side back and forth, so that the limit block 10 is engaged with the inner cavity of the different limit through holes 11, and the clamping plate 71 is limited in position so that the clamping plate 71 is adapted to the diameter and length of the pipe. The threaded rod 74 is then re-tightened to fix the position of the two clamping plates 71 on the same side.

[0035] Fourth, at the same time, the rotating shaft 81 is driven by the clamping plate 71 to move back and forth in the inner cavity of the damaged pipe body 1, so that the threaded pushing ring 84 is tightly fitted with the inner wall of the resin-lined pipe 23;

[0036] 5. Finally, the user turns on the motor 31, and the motor 31 drives the driving bevel gear 32 to rotate. Driven by the driving bevel gear 32, the two driven bevel gears 34 rotate in opposite directions, and then the rotating column 33 and the flexible transmission bar 9 rotate in the inner cavity of the L-shaped guide tube 35. The flexible transmission bar 9 drives the rotating shaft 81 to rotate, so that the two rollers 82 rotate in the inner cavity of the resin lining tube 23. Due to the shape characteristics of the threaded propulsion ring 84 and the simultaneous relative opposite rotation of the two rollers 82, the roller 82 drives the sliding disk 5, the extrusion mechanism 6 and the adjustment mechanism 7 to move left and right on the inner wall of the resin lining tube 23 through the threaded propulsion ring 84, and the inner wall of the resin lining tube 23 is crushed, so that the surface of the resin lining tube 23 fits more closely with the inner wall of the damaged pipe body 1.

[0037] In summary, the municipal pipeline CIPP flip-type in-situ curing repair device and construction method repairs the inner wall of the damaged pipe body 1 through the setting of the flip mechanism 2. Subsequently, with the cooperation of the driving mechanism 3 and the flexible transmission bar 9, the propulsion mechanism 8 drives the adjustment mechanism 7 and the extrusion mechanism 6 to move horizontally in the inner cavity of the lining resin tube 23, so that the lining resin tube 23 is tightly fitted to the inner wall of the damaged pipe body 1, thereby achieving the purpose of fitting and tightening and a wide range of adaptability. The municipal pipeline and CIPP flip-type in-situ curing repair device and construction method solve the problem that traditional devices used for CIPP in-situ curing method rely solely on gas agitation to make the lining repair material fit the inner wall of the pipe. This fitting method causes bubbles or loose fitting between the pipe and the lining, making the lining repair material unable to effectively repair the damaged pipe. After the lining is laid, there is no rolling piece adapted to the diameter of the damaged pipe to effectively roll the lining, and the diameter of the rolling piece is relatively fixed, which cannot be widely used for damaged pipes of different diameters.

[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0039] The electrical components mentioned in this article are all connected to an external main controller and 220V AC power, and the main controller can be a conventional known device that performs control such as a computer.

Claims

1. A municipal pipeline CIPP flip-over in-situ curing repair device, comprising a damaged pipeline body (1), characterized in that: A turnover mechanism (2) and a box (4) are respectively provided on both sides of the damaged pipe body (1), the turnover mechanism (2) comprises a shell (21), the inner cavity of the shell (21) is rotatably connected to a coil shaft (22), the surface of the coil shaft (22) is wound with an inner lining resin tube (23), the end of the inner lining resin tube (23) away from the shell (21) extends to the inner cavity of the damaged pipe body (1), the right side of the top of the shell (21) is connected to a steam pipe (24), the top of the box (4) is provided with a driving mechanism (3), the left side of the inner cavity of the damaged pipe body (1) is provided with a sliding disk (5), the top and bottom of the sliding disk (5) are both provided with a squeezing mechanism (6), the sliding disk (5) ) is provided with an adjustment mechanism (7) on the outside, and a propulsion mechanism (8) is provided on the front and rear sides of the adjustment mechanism (7). The driving mechanism (3) includes a motor (31) fixedly connected to the left side of the top of the box (4), and the output shaft of the motor (31) passes through the inner cavity of the box (4) and is fixedly connected to the driving bevel gear (32). The front and rear sides of the box (4) are both penetrated by a rotating column (33), and one end of the rotating column (33) located in the inner cavity of the box (4) is fixedly connected to the driven bevel gear (34). The adjustment mechanism (7) includes a card plate (71) located on the front and rear sides of the sliding disk (5). The number of the card plates (71) is four, and the front ends of the two rear card plates (71) are fixedly connected to the telescopic column. (72), the rear ends of the two front side clamping plates (71) are provided with rectangular sliding grooves (73) adapted to the telescopic column (72), the extrusion mechanism (6) includes sliding columns (61) respectively penetrating the top and bottom of the sliding plate (5), one end of the sliding column (61) located in the inner cavity of the sliding plate (5) is fixedly connected to the anti-slip plate (62), the other end of the sliding column (61) is fixedly connected to the extrusion plate (63), the surface of the sliding column (61) is provided with a spring (65), the two ends of the spring (65) are respectively welded to the extrusion plate (63) and the sliding plate (5), the front and rear sides of the two sliding columns (61) are fixedly connected to the limiting column (66), one end of the limiting column (66) penetrates the sliding plate (5), the other end It is fixedly connected to the extrusion plate (63), and the surface of the extrusion plate (63) is fixedly connected to an arc-shaped rubber pad (64), characterized in that: the front side and the rear side of the box body (4) are both connected to the L-shaped guide tube (35), and the side of the rotating column (33) away from the driven bevel gear (34) is fixedly connected to a soft transmission bar (9), and the soft transmission bar (9) is located in the inner cavity of the L-shaped guide tube (35), and the propulsion mechanism (8) includes a rotating shaft (81), and a roller (82) is installed on the surface of the rotating shaft (81), and the rotating shaft drives the roller to rotate, and springs (83) are sleeved on both sides of the surface of the rotating shaft (81), and the two ends of the spring (83) are respectively slidably connected to the clamping plate (71) and the rotating shaft (81).A threaded propulsion ring (84) is fixedly connected to the surface of the roller (82), and one end of the flexible transmission bar (9) away from the rotating column (33) is fixedly connected to the propulsion mechanism (8).

2. The municipal pipeline CIPP flip-over in-situ curing repair device according to claim 1 is characterized by: A threaded rotating rod (74) is provided on the side of the front side clamping plate (71) away from the sliding plate (5), and three threaded grooves (75) adapted to the threaded rotating rod (74) are provided on the side of the telescopic column (72) away from the sliding plate (5). A plurality of limit blocks (10) are fixedly connected to the opposite sides of the four clamping plates (71), and limit through holes (11) adapted to the limit blocks (10) are provided on the front and rear ends of both sides of the sliding plate (5).

3. A method for using a municipal pipeline CIPP flip-over in-situ curing repair device, comprising the municipal pipeline CIPP flip-over in-situ curing repair device according to claim 2, wherein the steps of the method are as follows:

1. In actual use, the user first places the left side of the shell (21) against the right side of the damaged pipe body (1), then injects steam into the inner cavity of the shell (21) through the steam pipe (24), and simultaneously rotates the coil shaft (22) so that the inner lining resin tube (23) enters the inner cavity of the damaged pipe body (1) under the blowing of steam, so that the surface of the inner lining resin tube (23) fits the inner wall of the damaged pipe body (1); 2. Then, the sliding plate (5) is placed into the left side of the inner cavity of the damaged pipe body (1). Due to the push of the spring 1 (65), the extrusion plate (63) pushes the arc-shaped rubber pad (64) to fit tightly against the inner wall of the resin-lined pipe (23); 3. Then, the user rotates the threaded rotating rod (74) to separate the front and rear clamping plates (71), and the user pulls the clamping plate (71) on the same side to move forward and backward, so that the limiting block (10) is locked into the inner cavity of the different limiting through holes (11), and the clamping plate (71) is limited so that the clamping plate (71) is adapted to the diameter length of the pipe, and then the threaded rotating rod (74) is re-tightened to fix the positions of the two clamping plates (71) on the same side; 4. At the same time, the rotating shaft (81) is driven by the clamping plate (71) to move back and forth in the inner cavity of the damaged pipe body (1), so that the threaded propulsion ring (84) is closely fitted with the inner wall of the resin-lined pipe (23); 5. Finally, the user turns on the motor (31), and the motor (31) drives the driving bevel gear (32) to rotate. Under the drive of the driving bevel gear (32), the two driven bevel gears (34) rotate in opposite directions, and then the rotating column (33) and the soft transmission bar (9) rotate in the inner cavity of the L-shaped guide tube (35). The rotating shaft (81) is driven to rotate through the soft transmission bar (9), so that the two rollers (82) rotate in the inner cavity of the lining resin tube (23). Due to the shape characteristics of the threaded propulsion ring (84), and the two rollers (82) rotate in opposite directions at the same time, the roller (82) drives the sliding disk (5), the extrusion mechanism (6) and the adjustment mechanism (7) to move left and right on the inner wall of the lining resin tube (23), and grinds the inner wall of the lining resin tube (23), so that the surface of the lining resin tube (23) fits more closely with the inner wall of the damaged pipe body (1).

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