An automated filament winding device for repairing defective pipes

Abstract

The present invention belongs to the technical field of pipeline repair devices, and specifically relates to an automated fiber winding device for repairing defective pipelines. The present invention includes two sets of fixing mechanisms arranged relatively to clamp defective pipelines, a fiber winding device arranged between the two fixing mechanisms, and a connecting device arranged on the two fixing mechanisms to connect the fixing mechanisms and the fiber winding device; the fixing mechanisms and the fiber winding device are both provided with a C-shaped cavity for accommodating the defective pipeline, and when installed on the defective pipeline, the corresponding opening directions of the C-shaped cavities on the fixing mechanisms and the fiber winding device are consistent; when winding fibers around the defective pipeline, the fiber winding device slides on the connecting device along the axial direction of the pipeline. The fiber winding device can be arranged above, on the side, and below the pipeline for fiber winding work, and occupies less space, which solves the problem in the prior art that the fiber winding device cannot be placed on the side of the narrow space where the pipeline is located, thereby failing to repair the pipeline in the narrow space.

Description

Technical Field

[0001] The invention belongs to the technical field of pipeline repair devices, and in particular relates to an automated fiber winding device for repairing defective pipelines. Background Art

[0002] Long-distance transportation of oil, gas, etc. mostly adopts pipeline transportation. Due to the harsh environment in which the pipeline is located, these pipelines are corroded by the medium and the external environment for a long time, resulting in thinning of the pipeline wall thickness and weakening of strength. In addition, along with the initiation and expansion of pipeline cracks, pipeline leakage and explosion accidents also occur frequently. In order to ensure the normal operation of the pipeline, it is necessary to repair such defective pipelines. The three most commonly used repair methods for defective pipelines are traditional welding, jacketing and fiber winding. The specific operation of the fiber winding repair method is to wrap the fiber reinforcement material on the defective pipeline, and then heat the wrapped fiber reinforcement material to make the fiber reinforcement material fastened to the defective pipeline to increase the strength and corrosion resistance of the pipeline. This repair method has the characteristics of no fire, no parking and low maintenance cost, so that it gradually replaces traditional repair methods such as welding and jacketing.

[0003] However, the existing fiber winding repair equipment needs to open a large space on the side of the pipeline to complete the repair operation. At the same time, due to limited operating space, fiber reinforcement materials can only be wound manually, and manual winding is prone to problems such as uneven tension control of fiber reinforcement materials and uneven stacking of fiber reinforcement materials. When the pipeline is located in a harsh environment, the space around the pipeline is narrow, or there are complex situations such as high-temperature pipelines or large-diameter pipelines, the existing fiber repair equipment is no longer applicable. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of the fiber repair equipment in the prior art, such as large space occupation, uneven winding of fiber reinforcement materials, and uneven tension control, and to provide an automated fiber winding device for repairing defective pipes that is clamped around defective pipes and occupies a small space.

[0005] The technical solution adopted by the present invention to solve the technical problem is: 1. An automated fiber winding device for repairing defective pipes, comprising two sets of fixing mechanisms arranged opposite to each other for clamping the defective pipes, a fiber winding device arranged between the two fixing mechanisms, and a connecting device arranged on the two fixing mechanisms for connecting the fixing mechanisms and the fiber winding device;

[0006] The fixing mechanism and the fiber winding device are both provided with a C-shaped cavity for accommodating the defective pipe. When installed on the defective pipe, the corresponding opening directions of the C-shaped cavities on the fixing mechanism and the fiber winding device are consistent; when winding fibers around the defective pipe, the fiber winding device slides on the connecting device along the axial direction of the pipe;

[0007] The fiber winding device includes a fixed platform slidably arranged with the connecting device, a movable platform rotating along the inner wall of the fixed platform, and a driving mechanism installed on the fixed platform for driving the movable platform to rotate; the fiber-reinforced material is installed on the inner wall of the movable platform and rotates around the fixed platform following the movable platform.

[0008] Furthermore, the driving mechanism comprises a winding motor mounted on the fixed platform, a plurality of floating wheel groups and a pulley transmission assembly coaxially arranged with the winding motor; the plurality of floating wheel groups are connected to the winding motor through the pulley transmission assembly.

[0009] Furthermore, the floating wheel group is three groups, and the floating wheel group includes a mounting plate rotatably mounted on the fixed platform, a driving gear rotatably mounted on the mounting plate and drivingly connected to the pulley transmission assembly, a driven gear externally meshingly connected to the driving gear, and a friction wheel coaxially arranged with the driven gear;

[0010] The friction wheel abuts against the outer wall of the moving platform and drives the moving platform to rotate along the fixed platform when the friction wheel rotates.

[0011] Furthermore, the floating wheel set further comprises a floating assembly for ensuring that the floating wheel set is in a floating state;

[0012] The floating assembly comprises a fixed column fixedly mounted on a fixed platform, a floating column fixedly mounted on the mounting plate, and an elastic member mounted between the fixed column and the floating column.

[0013] Further, the pulley transmission assembly includes a driving pulley coaxially arranged with the winding motor, a first driven pulley, a second driven pulley, a third driven pulley and a fourth driven pulley connected to the driving pulley through a belt transmission;

[0014] The first driven pulley, the second driven pulley and the third driven pulley are respectively synchronously arranged with the driving gears of the three groups of floating pulleys, and the fourth driven pulley is synchronously connected with the third driven pulley.

[0015] Furthermore, a plurality of guide devices for positioning the moving platform and the fixed platform are arranged on the inner wall of the fixed platform;

[0016] The guide device comprises a mounting groove provided on the inner wall of the fixed platform and a roller rotatably mounted in the mounting groove, and the roller is rotatably arranged with the movable platform.

[0017] Furthermore, a plurality of drag-reducing rollers are arranged on both end surfaces of the fixed platform, and the plurality of drag-reducing rollers on the two end surfaces of the fixed platform are staggered.

[0018] Furthermore, the fixing mechanism includes a fixing plate clamped on the defective pipe and a tightening clamp installed on the fixing plate for tightening on the defective pipe.

[0019] Further, the clamping fixture includes a clamping claw assembly symmetrically arranged on the fixing plate on both sides of the C-shaped cavity;

[0020] The clamping jaw assembly comprises a clamping jaw slidably mounted on the mounting plate and a screw rod passing through the fixing plate and fixedly mounted with the clamping jaw; the screw rod is threadedly connected with the fixing plate.

[0021] Furthermore, the connecting device comprises at least two sets of sliding connecting rods whose two ends are respectively fixedly mounted to the fixing mechanism, and a moving mechanism driving the fiber winding device to slide along the sliding connecting rods;

[0022] The moving mechanism includes a moving motor installed on one of the fixed mechanisms, a first moving pulley coaxially arranged with the output shaft of the moving motor, and a second moving pulley connected to the first moving gear through a moving belt and installed on another fixed mechanism; the moving belt is fixedly connected to the fiber winding device.

[0023] The beneficial effects of the automated fiber winding device for repairing defective pipes of the present invention are:

[0024] 1. The fiber winding device of the present invention is arranged along the axial direction of the defective pipe, and is directly clamped around the defective pipe to perform fiber winding work. It can be arranged above, on the side and below the pipe according to the actual environment to perform fiber winding work, and occupies a small space, which solves the problem that the fiber winding device cannot be placed on the side of the narrow space where the pipe is located in the prior art, and thus the pipe cannot be repaired in the narrow space; and the present invention adopts a driving mechanism that drives the fiber winding device to move along the axial direction of the pipe and a driving mechanism that drives the moving platform to rotate on the fixed platform to realize the automatic winding of the defective pipe by the fiber winding device of the present invention, thereby avoiding the problem that the fiber winding of high-temperature pipes, large-diameter pipes and the like cannot be manually performed in the prior art.

[0025] 2. The fiber winding device of the present invention uses a plurality of floating wheel groups to drive the moving platform to rotate around the arc-shaped inner wall of the fixed platform through a floating wheel group. The floating wheel group is rotatably connected to the fixed platform through a bearing. The elastic tension of the floating assembly is used to keep the floating wheel group in a floating state, thereby avoiding the phenomenon of the moving platform and the fixed platform being stuck during the rotation of the moving platform. At the same time, a plurality of guide devices are installed on the inner wall of the fixed platform to guide and reduce resistance during the rotation of the moving platform and the fixed platform, thereby further ensuring the smoothness and uniformity of the rotation of the moving platform and the fixed platform, thereby ensuring that the fiber filaments or fiber strips wound on the pipe are evenly and tightly distributed.

[0026] 3. The present invention does not need to place the device on the side of the pipeline for fixing relative to the pipeline. The clamping jaw assembly symmetrically arranged on the mounting plates on both sides of the C-shaped cavity is used to fix the entire device to the pipeline, saving operating space. At the same time, the clamping jaw assembly adopts a manually adjustable tightening screw rod, which can repair pipelines of different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] Figure 1 It is a schematic diagram of the structure of the automated filament winding equipment of the present invention installed on a pipeline;

[0029] Figure 2 yes Figure 1 The main view;

[0030] Figure 3 is a first perspective stereogram of the automated filament winding apparatus of the present invention;

[0031] Figure 4 is a second perspective perspective view of the automated filament winding apparatus of the present invention;

[0032] Figure 5 is a first perspective perspective view of the fiber winding device of the present invention;

[0033] Figure 6 is a second perspective perspective view of the fiber winding device of the present invention;

[0034] Figure 7 It is a structural schematic diagram of a fixed platform of a fiber winding device of the present invention;

[0035] Figure 8 It is a structural schematic diagram of a moving platform of a fiber winding device of the present invention;

[0036] Fig. 9 It is a structural schematic diagram of the fixing mechanism of the fiber winding device of the present invention.

[0037] In the figure: 1, pipeline, 2, fixing mechanism, 21, fixing plate, 22, top clamp, 221, clamping claw, 222, screw rod, 3, fiber winding device, 31, fixed platform, 32, moving platform, 33, driving mechanism, 331, winding motor, 332, floating wheel group, 3321, mounting plate, 3322, driving gear, 3323, driven gear, 3324, friction wheel, 3325, fixed column, 3326, floating column, 3327, elastic member, 333, pulley transmission assembly, 3331, driving pulley, 333 2. First driven pulley, 3333. Second driven pulley, 3334. Third driven pulley, 3335. Tensioning pulley, 3336. Fourth driven pulley, 34. Guide device, 341. Mounting groove, 342. Roller, 35. Drag reduction roller, 36. Winding bracket, 37. Guide hook, 38. Docking positioning wheel, 4. Connecting device, 41. Sliding connecting rod, 42. Moving mechanism, 421. Moving motor, 422. First moving pulley, 423. Second moving pulley, 424. Moving belt, 5. C-shaped cavity, 6. Handle. DETAILED DESCRIPTION

[0038] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0039] like Figure 1-Figure 9 The specific embodiment of the automated fiber winding device for repairing a defective pipe 1 of the present invention shown in the figure comprises two sets of fixing mechanisms 2 arranged opposite to each other for clamping the defective pipe 1, a fiber winding device 3 arranged between the two fixing mechanisms 2, and a connecting device 4 arranged on the two fixing mechanisms 2 for connecting the fixing mechanisms 2 and the fiber winding device 3;

[0040] The fixing mechanism 2 and the fiber winding device 3 are both provided with a C-shaped cavity 5 for accommodating the defective pipe 1. When installed on the defective pipe 1, the corresponding opening directions of the C-shaped cavities 5 on the fixing mechanism 2 and the fiber winding device 3 are consistent; when winding fibers around the defective pipe 1, the fiber winding device 3 slides on the connecting device 4 along the axial direction of the pipe 1.

[0041] The fiber winding device 3 includes a fixed platform 31 slidably arranged with the connecting device 4, a moving platform 32 rotating along the inner wall of the fixed platform 31, and a driving mechanism 33 installed on the fixed platform 31 for driving the moving platform 32 to rotate; the fiber reinforcement material is installed on the inner wall of the moving platform 32 and rotates around the fixed platform 31 following the moving platform 32. A winding bracket 36 for installing the fiber reinforcement material is installed on the inner wall of the moving platform 32. In this embodiment, the fiber reinforcement material is a fiber strip roll or a fiber filament roll, and a guide hook 37 for passing the fiber strip or fiber filament is also installed on the annular inner wall of the moving platform 32 to prevent the fiber filament or fiber strip from being unevenly wound due to being too loose during the process of winding the pipe 1.

[0042] The fiber winding device of the present invention is arranged along the axial direction of the defective pipe 1, and is directly clamped around the defective pipe 1 to perform fiber winding work. It can be arranged above, on the side and below the pipe 1 according to the actual environment to perform fiber winding work, and occupies a small space. It solves the problem in the prior art that the fiber winding device cannot be placed on the side of the narrow space where the pipe 1 is located, thereby failing to repair the pipe 1 in the narrow space.

[0043] Reference Figures 2 to 4 In this embodiment, the driving mechanism 33 includes a winding motor 331 installed on the fixed platform 31, multiple floating wheel groups 332, and a pulley transmission assembly 333 coaxially arranged with the winding motor 331; the multiple floating wheel groups 332 are connected to the winding motor 331 through the pulley transmission assembly 333. The pulley transmission assembly 333 includes a driving pulley 3331 coaxially arranged with the winding motor 331, a first driven pulley 3332, a second driven pulley 3333, a third driven pulley 3334, and a fourth driven pulley 3335 connected to the driving pulley 3331 through a belt transmission. The first driven pulley 3332, the second driven pulley 3333, and the third driven pulley 3334 are respectively synchronously arranged with the driving gear 3323 of the three floating wheel groups 332, and the fourth driven pulley 3336 is synchronously connected with the third driven pulley 3334. As an embodiment, tensioning pulleys 3335 for tensioning the transmission belt are provided between the driving pulley 3331 and the first driven pulley 3332 , between the driving pulley 3331 and the second driven pulley 3333 , and between the second driven pulley 3333 and the third driven pulley 3334 .

[0044] As one embodiment, the floating wheel set 332 is three sets, such as Figure 5 and Figure 6As shown, the floating wheel assembly 332 includes a mounting plate 3321 rotatably mounted on the fixed platform 31, a driving gear 3323 rotatably mounted on the mounting plate 3321 and drivingly connected to the pulley transmission assembly 333, a driven gear 3323 externally meshingly connected to the driving gear 3323, and a friction wheel 3324 coaxially arranged with the driven gear 3323. In this embodiment, the edges of the three friction wheels 3324 arranged circumferentially and rotatably mounted on the fixed platform 31 abut against the moving platform 32, and the friction force between the friction wheels 3324 and the moving platform 32 drives the moving platform 32 to rotate along the fixed platform 31. Thereby, the fiber filaments or fiber strips mounted on the moving platform 32 are evenly and automatically wound on the defective pipe 1. The fiber winding device 3 of the present invention uses multiple floating wheel groups 332 to drive the moving platform 32 to rotate around the arc-shaped inner wall of the fixed platform 31 through a floating wheel group 332. The floating wheel group 332 is rotatably connected to the fixed platform 31 through a bearing. The elastic tension of the floating component is used to make the floating wheel group 332 in a floating state, that is, the moving platform 32 is in a floating state relative to the fixed platform 31, thereby avoiding the phenomenon that the moving platform 32 and the fixed platform 31 are stuck during the rotation of the moving platform 32.

[0045] As one of the embodiments, the floating wheel group 332 also includes a floating component for ensuring that the floating wheel group 332 is in a floating state; the floating component includes a fixed column 3325 fixedly installed on the fixed platform 31, a floating column 3326 fixedly installed on the mounting plate 3321, and an elastic member 3327 installed between the fixed column 3325 and the floating column 3326.

[0046] As one of the embodiments, the elastic member 3327 is a coil spring, and the floating assembly is installed on three groups of floating wheel groups 332 arranged circumferentially on the fixed platform 31. The fiber winding device 3 of the present invention uses multiple floating wheel groups 332 to drive the moving platform 32 to rotate around the arc-shaped inner wall of the fixed platform 31 through the floating wheel group 332. The floating wheel group 332 is rotatably connected with the fixed platform 31 through the bearing. The elastic tension of the floating assembly is used to make the floating wheel group 332 in a floating state, thereby avoiding the phenomenon that the moving platform 32 and the fixed platform 31 are stuck during the rotation of the moving platform 32. At the same time, multiple guide devices 34 are installed on the inner wall of the fixed platform 31 to guide and reduce resistance during the rotation of the moving platform 32 and the fixed platform 31, further ensuring the stability and uniformity of the rotation of the moving platform 32 and the fixed platform 31, thereby ensuring that the fiber filaments or fiber strips wound on the pipe 1 are evenly distributed and tightly.

[0047] In this embodiment, the inner wall of the fixed platform 31 is provided with a plurality of guide devices 34 for positioning the movable platform 32 and the fixed platform 31; the guide device 34 includes a mounting groove 341 provided on the inner wall of the fixed platform 31 and a roller 342 rotatably installed in the mounting groove 341, and the roller 342 is rotatably arranged with the movable platform 32. It should be noted that at least one end of the movable platform 32 having the C-shaped groove is provided with a docking positioning wheel 38 for guiding the movable platform 32 around the fixed platform 31, such as Figure 8 As shown, it is ensured that one end of the C-shaped groove of the movable platform 32 can accurately enter one end of the C-shaped groove of the corresponding fixed platform 31 during the rotation process.

[0048] Furthermore, in order to reduce other friction forces between the fixed platform 31 and the moving platform 32 except for the friction between the friction wheels 3324, as another embodiment, multiple drag reduction rollers 35 are arranged on both end surfaces of the fixed platform 31, and the multiple drag reduction rollers 35 on the two end surfaces of the fixed platform 31 are staggered. The multiple drag reduction rollers 35 arranged staggered effectively support and reduce friction forces of the moving platform 32 relative to the fixed platform 31, and better cooperate with the floating assembly for the floating effect between the moving platform 32 and the fixed platform 31.

[0049] Reference Fig. 9 It should be further explained that the present invention does not need to place the device on the side of the pipeline 1 to fix it relative to the pipeline 1. The clamping jaw assembly symmetrically arranged on the mounting plates 3321 on both sides of the C-shaped cavity 5 is used to fix the entire device to the pipeline 1, saving operating space. At the same time, the clamping jaw assembly adopts a manually adjustable tightening screw rod 222, which can repair pipelines 1 of different diameters. The fixing mechanism 2 in the above embodiment includes a fixing plate 21 clamped on the defective pipeline 1, and a tightening clamp 22 installed on the fixing plate 21 for tightening on the defective pipeline 1. The tightening clamp 22 includes a clamping jaw assembly symmetrically arranged on the mounting plates 3321 on both sides of the C-shaped cavity 5. Among them, the clamping jaw assembly includes a clamping jaw 221 slidably mounted on the fixing plate 21 and a screw rod 222 passing through the fixing plate 21 and fixedly installed with the clamping jaw 221; the screw rod 222 is threadedly connected to the mounting plate 3321. In this embodiment, the position of each clamping claw 221 of the tightening clamp 22 can be manually adjusted by screwing the rod 222, which can be applicable to the fiber winding work of pipes 1 with different diameters, further increasing the wide application range of the automatic winding device.

[0050] A handle 6 for manually pulling the entire device to move is also provided on the fixed plate 21, which facilitates the movement of the entire device. After the fiber winding of a section of pipe is completed, the entire device can be moved on the pipe 1 by simply loosening the tightening clamp 22. The movement is convenient and stable.

[0051] The connecting device 4 in the above embodiment includes at least two sets of sliding connecting rods 41 fixedly mounted on the fixing mechanism 2 at both ends, and a moving mechanism 42 driving the fiber winding device 3 to slide along the sliding connecting rods 41. Figure 3 As shown, the moving mechanism 42 includes a moving motor 421 installed on a fixed mechanism 2, a first moving belt 424 wheel 422 coaxially arranged with the output shaft of the moving motor 421, and a second moving belt 424 wheel 423 connected to the first moving gear through the moving belt 424 and installed on another fixed mechanism 2; the moving belt 424 is fixedly connected to the fiber winding device 3.

[0052] As one embodiment, four sets of sliding connecting rods 41 are fixedly installed on the fixing mechanism 2 at both ends, and a moving mechanism 42 is provided on one side of the fixing mechanism 2 to drive the fiber winding device 3 to move between the two fixing mechanisms 2 to realize the fiber winding work on a section of the pipe 1.

[0053] It should be understood that the specific embodiments described above are only used to explain the present invention, and are not used to limit the present invention. Obvious changes or modifications derived from the spirit of the present invention are still within the protection scope of the present invention.

Claims

1. An automated filament winding device for repairing defective pipes, characterized in that: It comprises two sets of fixing mechanisms (2) arranged opposite to each other and used to clamp the defective pipe (1), a fiber winding device (3) arranged between the two fixing mechanisms (2), and a connecting device (4) arranged on the two fixing mechanisms (2) and used to connect the fixing mechanisms (2) and the fiber winding device (3); The fixing mechanism (2) and the fiber winding device (3) are both provided with a C-shaped cavity (5) for accommodating the defective pipe (1); when installed on the defective pipe (1), the corresponding opening directions of the C-shaped cavities (5) on the fixing mechanism (2) and the fiber winding device (3) are consistent; when winding fibers around the defective pipe (1), the fiber winding device (3) slides on the connecting device (4) along the axial direction of the pipe (1); The fiber winding device (3) comprises a fixed platform (31) slidably arranged with the connecting device (4), a moving platform (32) rotating along the inner wall of the fixed platform (31), and a driving mechanism (33) mounted on the fixed platform (31) for driving the moving platform (32) to rotate; the fiber reinforcement material is mounted on the inner wall of the moving platform (32) and rotates around the fixed platform (31) following the moving platform (32); the driving mechanism (33) comprises a winding motor (331) mounted on the fixed platform (31), a plurality of floating wheel groups (332), and a belt wheel transmission assembly coaxially arranged with the winding motor (331); the plurality of floating wheel groups (332) are connected to the winding motor (331) in a transmission manner via the belt wheel transmission assembly; The floating wheel group (332) is composed of three groups, and the floating wheel group (332) comprises a mounting plate (3321) rotatably mounted on the fixed platform (31), a driving gear (3322) rotatably mounted on the mounting plate (3321) and drivingly connected to the pulley transmission assembly, a driven gear (3323) externally meshingly connected to the driving gear (3322), and a friction wheel (3324) coaxially arranged with the driven gear (3323); The friction wheel (3324) abuts against the outer wall of the movable platform (32), and when the friction wheel (3324) rotates, it drives the movable platform (32) to rotate along the fixed platform (31); The floating wheel set (332) further comprises a floating component for ensuring that the friction wheel (3324) is in a floating state; The floating assembly comprises a fixed column (3325) fixedly mounted on a fixed platform (31), a floating column (3326) fixedly mounted on the mounting plate (3321), and an elastic member (3327) mounted between the fixed column (3325) and the floating column (3326).

2. The automated filament winding device for repairing defective pipes according to claim 1, characterized in that: The pulley transmission assembly comprises a driving pulley (3331) coaxially arranged with the winding motor (331), a first driven pulley (3332) connected to the driving pulley (3331) via a belt transmission, a second driven pulley (3333), a third driven pulley (3334) and a fourth driven pulley (3336); The first driven pulley (3332), the second driven pulley (3333) and the third driven pulley (3334) are respectively synchronously arranged with the driving gears (3322) of the three sets of floating wheel groups (332), and the fourth driven pulley (3336) is synchronously connected with the third driven pulley (3334).

3. The automated filament winding device for repairing defective pipes according to claim 1, characterized in that: A plurality of guide devices (34) for positioning the movable platform (32) and the fixed platform (31) are arranged on the inner wall of the fixed platform (31); The guide device (34) comprises a mounting groove (341) provided on the inner wall of the fixed platform (31) and a roller (342) rotatably mounted in the mounting groove (341); the roller (342) is rotatably arranged with the movable platform (32).

4. The automated filament winding device for repairing defective pipes according to claim 1, characterized in that: A plurality of drag-reducing rollers (35) are arranged on both end surfaces of the fixed platform (31), and the plurality of drag-reducing rollers (35) on the two end surfaces of the fixed platform (31) are arranged in a staggered manner.

5. The automated filament winding device for repairing defective pipes according to claim 1, characterized in that: The fixing mechanism (2) comprises a fixing plate (21) clamped on the defective pipe (1), and a tightening clamp (22) mounted on the fixing plate (21) and used for tightening on the defective pipe (1).

6. The automated filament winding device for repairing defective pipes according to claim 5, characterized in that: The clamping fixture (22) comprises a clamping claw assembly symmetrically arranged on the fixing plate (21) on both sides of the C-shaped cavity (5); The clamping jaw assembly comprises a clamping jaw (221) slidably mounted on the fixing plate (21) and a screw rod (222) passing through the fixing plate (21) and fixedly mounted to the clamping jaw (221); the screw rod (222) is threadedly connected to the fixing plate (21).

7. An automated filament winding device for repairing defective pipes according to any one of claims 1 to 6, characterized in that: The connecting device (4) comprises at least two sets of sliding connecting rods (41) fixedly mounted on the fixing mechanism (2) at both ends, and a moving mechanism (42) driving the fiber winding device (3) to slide along the sliding connecting rods (41); The moving mechanism (42) comprises a moving motor (421) mounted on one of the fixing mechanisms (2), a first moving pulley (422) coaxially arranged with the output shaft of the moving motor (421), and a second moving pulley (423) mounted on another fixing mechanism (2) and connected in transmission with the first moving pulley (422) by a moving belt (424); the moving belt (424) is fixedly connected to the fiber winding device (3).

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