Spiral winding repairing device for underground pipeline

Abstract

The invention relates to the technical field of pipeline repair, in particular to a spiral winding repair device for an underground pipeline, which comprises a rack, a guide mechanism and an adjusting mechanism. Wherein the guide mechanism comprises a plurality of groups of guide assemblies, the plurality of groups of guide assemblies are enclosed to form a ring shape, and the guide assemblies are used for guiding a repair belt; the adjusting mechanism comprises a driving assembly and a plurality of supporting assemblies, the multiple supporting assemblies are slidably connected to the rack and correspond to the guiding assemblies one to one, and the driving assembly is arranged on the rack and connected with the multiple supporting assemblies. The driving assembly can drive the multiple sets of guiding assemblies to get close to or get away from one another through the supporting assembly. The effect of widening the application range of the repairing device is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of pipeline repair, and in particular to a spiral winding repair device for underground pipelines. Background Art

[0002] At present, with the acceleration of urbanization, the aging problem of municipal pipe network facilities has become increasingly prominent, and pipe damage and leakage are frequent, which has brought serious impacts on urban operations and residents' lives. Therefore, how to effectively repair and maintain the municipal pipe network has become an urgent and important task. In related technologies, the pipe repair spiral winding method is usually used to repair the pipe. The pipe repair spiral winding method uses a spiral winding repair device to roll in the winding repair belt and rotate it through the spiral. The parent and child locks on both sides of the repair belt are interlocked to form a fixed-caliber waterproof new pipe until it reaches the next inspection well, and then cement slurry is poured between the new pipe and the old pipe, and finally a high-strength, water-tight new pipe is formed to achieve the purpose of repair.

[0003] Regarding the above-mentioned related technologies: the structure of the spiral winding repair device is usually fixed and cannot be adjusted according to the pipe diameter, which limits the applicability of the spiral winding repair device on pipes with different diameters. Summary of the invention

[0004] In order to improve the application scope of the repair device, the present application provides a spiral winding repair device for underground pipelines.

[0005] The present application provides a spiral winding repair device for underground pipelines, which adopts the following technical solution: A spiral winding repair device for underground pipelines, comprising: frame; The guide mechanism comprises a plurality of guide components, the plurality of guide components are enclosed in a ring, and the guide components are used to guide the repair belt; The adjusting mechanism includes a driving component and a plurality of supporting components. The plurality of supporting components are respectively slidably connected to the frame and are arranged one-to-one with the guide components. The driving component is arranged on the frame and is respectively connected to the plurality of supporting components. The driving component can drive the plurality of guide components to move closer to or away from each other through the supporting components.

[0006] By adopting the above technical solution, multiple groups of guide components are enclosed in a ring, which can effectively guide the repair belt, and the driving component can drive the multiple groups of guide components to move closer or farther from each other through the supporting component, thereby adjusting the diameter of the ring enclosed by the multiple groups of guide components. This design, on the one hand, improves the scope of application of the repair device, so that the repair device can be applied to pipes of different diameters, and on the other hand, ensures the stability and accuracy of the repair belt during transportation, reduces possible errors during installation, and improves the repair efficiency and quality.

[0007] Optionally, the guide assembly includes a guide roller, a plurality of forming rollers and two arc-shaped plates arranged opposite to each other, one of the two arc-shaped plates is connected to the support assembly, the guide roller and the plurality of forming rollers are respectively arranged between the two arc-shaped plates, and the plurality of guide rollers and the plurality of forming rollers are arranged in a ring shape.

[0008] By adopting the above technical solution, the arc plate is connected to the support assembly, so that the driving assembly can adjust the position of the arc plate through the support assembly, so as to facilitate the adjustment of the spacing between two adjacent arc plates, and when the arc plate moves, it can drive the other arc plate relative to move through the guide roller and the forming roller, so as to achieve the adjustment of the repair device, so that the repair device can adapt to pipes of different diameters. And the annular arrangement of the guide roller and the forming roller allows the repair belt to be evenly stressed when passing through the guide assembly, avoiding deformation or damage caused by uneven local stress, thereby improving the laying accuracy of the repair belt, and enhancing the reliability of the repair device, effectively improving the quality and efficiency of pipeline repair.

[0009] Optionally, the guide assembly includes a connecting piece, and the connecting piece is slidably connected to two adjacent arc-shaped plates respectively.

[0010] By adopting the above technical solution, the connecting piece is slidably connected to two adjacent arc-shaped plates, so that the adjacent arc-shaped plates can maintain a stable relative position during the adjustment process, which is conducive to reducing the possibility of position deviation between adjacent arc-shaped plates, resulting in reduced laying accuracy of the repair tape. At the same time, this sliding connection method can also effectively absorb and disperse the vibration and impact force generated during the transmission of the repair tape, thereby improving the stability and durability of the entire device.

[0011] Optionally, the driving assembly includes a first gear and a gear ring, the gear ring is rotatably connected to the frame, and the gear ring is coaxially arranged with the arc plate; The support assembly includes a support member and a screw rod. The multiple support members are respectively slidably connected to the frame and distributed around the axis of the gear ring. The support member is connected to the arc plate. The screw rod is rotatably connected to the frame. One end of the screw rod is threadedly connected to the support member, and the other end of the screw rod is connected to the first gear. The first gear and the gear ring are meshed with each other.

[0012] By adopting the above technical solution, when the gear ring rotates, the gear ring can drive the screw to rotate through the first gear, the screw can drive the support to move on the frame, and the support can drive the arc plate to move, so as to facilitate the synchronous adjustment between multiple arc plates, and then facilitate the repair device to adapt to pipes of different diameters, so as to improve the application range of the repair device. And the screw can support the support, so that the support is subject to external force and spontaneously drives the arc plate to move, thereby ensuring that the position of the arc plate is not easily offset.

[0013] Optionally, the driving assembly includes a driving member and a second gear, the driving member is arranged on the frame, the second gear is arranged on the output end of the driving member, an inner ring tooth is arranged on the circumferential inner wall of the gear ring, the second gear is meshed with the inner ring tooth, and the driving member is used to drive the second gear to rotate.

[0014] By adopting the above technical solution, the driving member can drive the second gear to rotate, the second gear can drive the gear ring to rotate through the inner ring teeth, the gear ring can drive the screw to rotate through the first gear, and the screw can drive the support member to move, so as to facilitate the precise adjustment of the position of the arc plate through the support member. This design not only improves the adjustment accuracy of the guide assembly, but also ensures the coordinated action between the guide assemblies, effectively adapts to pipes of different diameters, and improves the applicability and ease of operation of the repair device.

[0015] Optionally, a slide groove is provided on the frame, the cross-section of the slide groove is T-shaped, the smaller end of the slide groove is arranged close to the forming roller, and the support member is slidably inserted in the slide groove and adapted to the shape design of the slide groove.

[0016] By adopting the above technical solution, the cross-section of the slide groove is designed to be T-shaped, so that the support member can slide stably in the slide groove, avoiding the risk of deviation or falling off during the adjustment process, and improving the positioning accuracy of the guide component.

[0017] Optionally, it includes a conveying mechanism and a pressing mechanism, the conveying mechanism and the pressing mechanism are respectively arranged on the guide assembly, the conveying mechanism is tangent to the edge line of the ring enclosed by multiple groups of the guide assemblies, the pressing mechanism is located below the conveying mechanism, the conveying mechanism is used to convey the repair belt to the pressing mechanism, and the pressing mechanism is used to press the repair belt.

[0018] By adopting the above technical solution, the conveying mechanism is tangent to the edge of the ring formed by multiple groups of guide components, ensuring that the repair belt can be smoothly transported to the pressing mechanism along the predetermined path, avoiding deviation or jamming during the transmission process. At the same time, the pressing mechanism is located below the conveying mechanism, which can press the repair belt in time to ensure that the repair belt remains flat and tightly fits when entering the pipeline, thereby improving the repair quality and efficiency. In addition, this layout method also simplifies the equipment structure, reduces manufacturing costs and maintenance difficulties.

[0019] Optionally, the pressing mechanism includes a first pressing roller and a second pressing roller, the second pressing roller is arranged on the supporting assembly, the first pressing roller is arranged on the guiding assembly, and the first pressing roller and the second pressing roller are arranged opposite to each other and are located below the conveying mechanism.

[0020] By adopting the above technical solution, the relative arrangement of the first pressing roller and the second pressing roller can ensure that the repair tape is subjected to uniform pressure during the conveying process, thereby preventing the repair tape from being offset or deformed during the conveying process. At the same time, the first pressing roller is arranged on the guide assembly, which can pre-guide the repair tape before it enters the pressing area, further improving the stability and pressing quality of the repair tape.

[0021] Optionally, a plurality of the second pressure rollers are provided, and the plurality of the second pressure rollers are arranged in one-to-one correspondence with the plurality of the supporting assemblies, and the second pressure rollers are arranged at intervals from the guide assemblies.

[0022] By adopting the above technical solution, multiple second pressure rollers are arranged in one-to-one correspondence with multiple support components, so that each second pressure roller can achieve precise position adjustment under the drive of the corresponding support component, and multiple second pressure rollers can accurately press the repair belt to avoid the repair belt from deviating during the transportation along the forming roller, which is beneficial to improve the adaptability and reliability of the repair device.

[0023] Optionally, a crimping wheel is provided on the guide assembly, and the crimping wheel is used to guide the repair tape after the repair tape is separated from the guide assembly.

[0024] By adopting the above technical solution, the crimping wheel is set on the guide assembly, and continues to guide the repair belt after it detaches from the guide assembly, ensuring that the repair belt smoothly transitions to the subsequent process and avoiding deviation or distortion of the repair belt due to sudden loss of guidance, thereby improving the laying accuracy and stability of the repair belt.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. Through the cooperation between the driving assembly and the supporting assembly, the guide assemblies can be moved closer or farther from each other, thereby adapting to pipes of different diameters, thereby significantly improving the scope of application and flexibility of the repair device; 2. The design of multiple guide rollers and forming rollers arranged in a ring ensures that the repair belt remains stable and parallel during the guiding process, effectively avoiding the distortion or dislocation of the repair belt caused by poor guiding, and significantly improving the laying quality and repair effect of the repair belt; 3. Through the precise coordination of the lead screw, the first gear, the gear ring, the second gear and the driving member, it is easy to achieve synchronous adjustment between multiple arc plates, which reduces the complexity and time consumption of adjustment and greatly improves the efficiency and reliability of the repair work. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of a spiral winding repair device for underground pipelines in Example 1 of the present application.

[0027] Figure 2 It is a partial structural schematic diagram of a spiral winding repair device for underground pipelines in Example 1 of the present application.

[0028] Figure 3 It is a partial structural diagram of the arc plate and the adjustment mechanism in Example 1 of the present application.

[0029] Figure 4 It is a partial structural diagram of the guide assembly and the adjustment mechanism in Example 1 of the present application.

[0030] Figure 5 It is a partial structural schematic diagram of a spiral winding repair device for underground pipelines in Example 2 of the present application.

[0031] Description of reference numerals: 1. Frame; 11. Slide; 2. Guide mechanism; 21. Guide assembly; 211. Guide roller; 212. Forming roller; 213. Arc plate; 214. Connector; 22. Annular groove; 23. Pressing wheel; 3. Adjustment mechanism; 31. Drive assembly; 311. First gear; 312. Gear ring; 313. Drive member; 314. Second gear; 315. Inner ring gear; 32. Support assembly; 321. Support member; 322. Screw rod; 4. Conveying mechanism; 5. Pressing mechanism; 51. First pressing roller; 52. Second pressing roller; 6. Repair belt. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-5 This application is described in further detail.

[0033] The embodiment of the present application discloses a spiral winding repair device for underground pipelines.

[0034] It should be noted that, in the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] Reference Figure 1 Embodiment 1: A spiral winding repair device for underground pipelines includes a frame 1, a guide mechanism 2, an adjustment mechanism 3, a conveying mechanism 4 and a pressing mechanism 5. The adjustment mechanism 3 is arranged on the frame 1, the guide mechanism 2, the conveying mechanism 4 and the pressing mechanism 5 are arranged on the adjustment mechanism 3 respectively, and the conveying mechanism 4 is used to convey the repair tape 6 to the pressing mechanism 5, and the pressing mechanism 5 is used to press the repair tape 6 so that the repair tape 6 stably enters the guide mechanism 2, and the guide mechanism 2 is used to make the repair tape 6 spirally advance and form a new pipeline.

[0036] Reference Figure 1 and Figure 2 The guide mechanism 2 includes a plurality of guide components 21, which are enclosed in a ring shape, and the ring shape enclosed by the plurality of guide components 21 is defined as a ring groove 22. When the repair tape 6 enters the ring groove 22, the plurality of guide components 21 cooperate with each other to guide the repair tape 6 together, so that the repair tape 6 moves forward in a spiral.

[0037] The conveying mechanism 4 and the pressing mechanism 5 are respectively installed on the guide assembly 21 , and the conveying mechanism 4 is tangent to the edge line of the annular groove 22 . The pressing mechanism 5 is located below the conveying mechanism 4 , so that the conveying mechanism 4 can convey the repair tape 6 to the pressing mechanism 5 .

[0038] It should be noted that the specific design of the conveying mechanism 4 is a conventional technical means for those skilled in the art, so it will not be described in detail in the embodiments of the present application. Any structure that can convey the repair belt 6 is acceptable.

[0039] Reference Figure 1 and Figure 2 The pressing mechanism 5 includes a first pressing roller 51 and a second pressing roller 52. The first pressing roller 51 is rotatably connected to the guide assembly 21, and the second pressing roller 52 is rotatably connected to the support assembly 32. The first pressing roller 51 and the second pressing roller 52 are arranged opposite to each other and are located below the conveying mechanism 4. When the repair tape 6 is conveyed between the first pressing roller 51 and the second pressing roller 52, the first pressing roller 51 and the second pressing roller 52 cooperate with each other to stably press the repair tape 6 and make the repair tape 6 rotate in the annular groove 22.

[0040] In this embodiment, the first pressing roller 51 and the second pressing roller 52 can be made of high-strength alloy steel or stainless steel with good strength and wear resistance, and the surface can be hardened or chrome-plated to improve wear resistance and corrosion resistance.

[0041] It should be noted that in this embodiment, the first pressing roller 51 and the second pressing roller 52 are driven to rotate by a motor. As for how to use the motor to drive the first pressing roller 51 and the second pressing roller 52 to rotate, it is a conventional technical means for those skilled in the art. Therefore, it will not be described in detail in the embodiments of this application.

[0042] Reference Figure 2 The adjusting mechanism 3 is respectively connected to the multiple groups of guide components 21. The adjusting mechanism 3 is used to drive the multiple groups of guide components 21 to move closer to or away from each other to adjust the diameter of the annular groove 22, so that the repair device can be suitable for pipes of different diameters, which is beneficial to improve the application range of the repair device.

[0043] The adjustment mechanism 3 includes a driving assembly 31 and a plurality of supporting assemblies 32. The plurality of supporting assemblies 32 are respectively slidably connected to the frame 1 and are arranged one by one with the guide assemblies 21. The driving assembly 31 is arranged on the frame 1 and is respectively connected to the plurality of supporting assemblies 32. The driving assembly 31 can drive the plurality of guide assemblies 21 to move closer to or farther from each other through the supporting assemblies 32.

[0044] The frame 1 is provided with a slide groove 11, the cross section of which is T-shaped, and the smaller end of the slide groove 11 is disposed close to the guide assembly 21. In this embodiment, the number of the slide grooves 11 is equal to the number of the guide assemblies 21, and the plurality of slide grooves 11 are distributed around the axis of the annular groove 22.

[0045] Reference Figure 3 The support assembly 32 includes a support member 321 and a screw rod 322. The number of the support members 321 is equal to the number of the slide slots 11, and one support member 321 is slidably inserted in one slide slot 11. The support member 321 is adapted to the shape design of the slide slot 11, so that the support member 321 can slide in the slide slot 11 and is not easy to be separated from the slide slot 11. In this embodiment, the support member 321 can be made of high-strength alloy steel or stainless steel, which has good strength and toughness and can maintain stable performance during frequent adjustments.

[0046] The number of the screw rods 322 is equal to the number of the supporting members 321 , and the screw rods 322 are rotatably connected to the frame 1 , and one end of the screw rods 322 is threadedly connected to the supporting member 321 .

[0047] Reference Figure 4The driving assembly 31 includes a first gear 311, a gear ring 312, a driving member 313 and a second gear 314. The gear ring 312 is rotatably connected to the frame 1, and the gear ring 312 is coaxially arranged with the annular groove 22. The number of the first gears 311 is equal to the number of the screw rods 322, and the first gear 311 is fixedly connected to the screw rods 322 and meshes with the gear ring 312, so that when the gear ring 312 rotates, the first gear 311 and the screw rod 322 can synchronously drive the multiple supporting members 321 to move closer to or away from each other.

[0048] The driving member 313 is mounted on the frame 1, the second gear 314 is fixedly connected to the output end of the driving member 313, and the inner ring gear 315 is provided on the circumferential inner wall of the gear ring 312, and the second gear 314 meshes with the inner ring gear 315. In this embodiment, the driving member 313 can be a stepper motor or a servo motor, which has high precision and high response speed, and can execute instructions quickly and accurately, so that the driving member 313 can drive the gear ring 312 to rotate through the second gear 314.

[0049] Reference Figure 2 and Figure 4 The guide assembly 21 includes a guide roller 211, a plurality of forming rollers 212 and two arc plates 213 arranged opposite to each other. One of the two arc plates 213 is fixedly connected to the support member 321, and the arc plate 213 is coaxially arranged with the gear ring 312. A connecting member 214 is slidably connected between two adjacent arc plates 213, and the connecting member 214 is also designed in an arc shape and is coaxial with the annular groove 22. A plurality of connecting members 214 and a plurality of arc plates 213 are connected end to end in sequence to enclose a circular ring shape.

[0050] In this embodiment, the arc plate 213 can be made of stainless steel or aluminum alloy material, which has high corrosion resistance and lightweight characteristics. The connecting piece 214 can be made of high-strength alloy steel or stainless steel material, which has good strength and toughness and can maintain stable performance during frequent adjustments.

[0051] Reference Figure 2 The conveying mechanism 4, the first pressing roller 51 and the second pressing roller 52 are all arranged on the same arc plate 213, so that the arc plate 213 can drive the conveying mechanism 4, the first pressing roller 51 and the second pressing roller 52 to move, so that the relative positions between the conveying mechanism 4, the pressing mechanism 5 and the arc plate 213 remain unchanged, so as to avoid the repair belt 6 from being offset or deformed during the conveying process.

[0052] Reference Figure 1 and Figure 2The guide roller 211 and the plurality of forming rollers 212 are respectively rotatably connected between the two arc-shaped plates 213, and the plurality of guide rollers 211 and the plurality of forming rollers 212 are arranged in a ring shape. When the repair belt 6 enters the annular groove 22, the repair belt 6 can be engaged with the guide roller 211, and the guide roller 211 can exert a force on the repair belt 6 to drive the repair belt 6 to spirally advance and form a new pipeline. In this process, the forming roller 212 can limit the repair belt 6 so that the repair belt 6 can stably form a new pipeline.

[0053] It should be noted that the number of forming rollers 212 arranged on the arc plate 213 connected to the conveying mechanism 4 is small, so as to provide sufficient installation space for the conveying mechanism 4 and the pressing mechanism 5, and the specific working principles of the forming rollers 212 and the guide rollers 211 are conventional technical means for technical personnel in this field, so they will not be elaborated in the embodiments of this application.

[0054] Reference Figure 1 and Figure 2 A crimping wheel 23 is rotatably connected to the arc plate 213 near the conveying mechanism 4. The crimping wheel 23 is used to guide the repair belt 6 after the repair belt 6 is separated from the guide assembly 21, so as to ensure that the repair belt 6 smoothly transitions to the subsequent process and avoids the deviation or distortion of the repair belt 6 due to the sudden loss of guidance, thereby improving the laying accuracy and stability of the repair belt 6. The crimping wheel 23 can be made of high-strength plastic or nylon material, which has good wear resistance and lightweight characteristics, and the surface can be smoothed to reduce friction.

[0055] The implementation principle of the spiral winding repair device for underground pipelines in the embodiment of the present application is as follows: when the underground pipeline needs to be repaired, the driving member 313 is first started, and the driving member 313 drives the gear ring 312 to rotate through the second gear 314 and the inner ring gear 315, and the gear ring 312 drives the screw rod 322 to rotate through the first gear 311, and the screw rod 322 drives the support member 321 to move, and the support member 321 drives the arc plate 213 to move, so that multiple arc plates 213 are close to or away from each other, and the arc plate 213 drives the forming roller 212 and the guide roller 211 to move, so as to facilitate the adjustment of the diameter of the annular groove 22 to a suitable range according to the repair requirements of the underground pipeline. Then, the conveying mechanism 4 is used to convey the repair belt 6 to between the first pressing roller 51 and the second pressing roller 52, and the first pressing roller 51 and the second pressing roller 52 can press the repair belt 6 and make the repair belt 6 rotate along the forming roller 212. At this time, the guide roller 211 applies a force to the repair belt 6, so that the repair belt 6 spirally advances and forms a new pipeline, thereby facilitating the completion of the repair of the underground pipeline.

[0056] In the embodiment of the present application, by adjusting the position of the arc plate 213, the entire guide mechanism 2 can be flexibly adjusted according to the diameter of the pipe to be repaired, thereby effectively improving the application range and reliability of the repair device.

[0057] Reference Figure 5 Embodiment 2: The difference between this embodiment and embodiment 1 is that: a plurality of second pressing rollers 52 are provided, and the plurality of second pressing rollers 52 are arranged in one-to-one correspondence with the support member 321 , and are arranged at intervals with the forming roller 212 .

[0058] Reference Figure 1 and Figure 5 The plurality of second pressing rollers 52 can press the repair tape 6 more evenly to prevent the repair tape 6 from being offset during the conveyance along the forming roller 212, thereby improving the reliability of the repair device. The support member 321 can drive the second pressing roller 52 to move to prevent the relative position between the second pressing roller 52 and the forming roller 212 from being offset, further improving the reliability of the repair device.

[0059] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A spiral winding repair device for underground pipelines, characterized in that: include: Rack(1); The guide mechanism (2) comprises a plurality of guide components (21), wherein the plurality of guide components (21) are arranged in a ring shape, and the guide components (21) are used to guide the repair belt (6); The adjusting mechanism (3) comprises a driving assembly (31) and a plurality of supporting assemblies (32), wherein the plurality of supporting assemblies (32) are respectively slidably connected to the frame (1) and are arranged one-to-one with the guide assemblies (21); the driving assembly (31) is arranged on the frame (1) and is respectively connected to the plurality of supporting assemblies (32); the driving assembly (31) can drive the plurality of guide assemblies (21) to move closer to or farther from each other through the supporting assemblies (32); The guide assembly (21) comprises a guide roller (211), a plurality of forming rollers (212), and two arc-shaped plates (213) arranged opposite to each other, one of the two arc-shaped plates (213) is connected to the support assembly (32), the guide roller (211) and the plurality of forming rollers (212) are respectively arranged between the two arc-shaped plates (213), and the plurality of guide rollers (211) and the plurality of forming rollers (212) are arranged in a ring shape; The driving assembly (31) comprises a first gear (311) and a gear ring (312), wherein the gear ring (312) is rotatably connected to the frame (1), and the gear ring (312) is coaxially arranged with the arc plate (213); The support assembly (32) comprises a support member (321) and a screw rod (322); a plurality of the support members (321) are respectively slidably connected to the frame (1) and are distributed around the axis of the gear ring (312); the support member (321) is connected to the arc plate (213); the screw rod (322) is rotatably connected to the frame (1); one end of the screw rod (322) is threadedly connected to the support member (321); the other end of the screw rod (322) is connected to the first gear (311); and the first gear (311) and the gear ring (312) are meshed with each other.

2. The spiral winding repair device for underground pipelines according to claim 1 is characterized in that: The guide assembly (21) comprises a connecting piece (214), and the connecting piece (214) is slidably connected to two adjacent arc-shaped plates (213) respectively.

3. The spiral winding repair device for underground pipelines according to claim 1 is characterized in that: The driving assembly (31) comprises a driving member (313) and a second gear (314); the driving member (313) is arranged on the frame (1); the second gear (314) is arranged on the output end of the driving member (313); inner ring teeth (315) are arranged on the circumferential inner wall of the gear ring (312); the second gear (314) and the inner ring teeth (315) are meshed with each other; and the driving member (313) is used to drive the second gear (314) to rotate.

4. The spiral winding repair device for underground pipelines according to claim 1 is characterized in that: The frame (1) is provided with a slide groove (11), the cross section of the slide groove (11) is T-shaped, the smaller end of the slide groove (11) is arranged close to the forming roller (212), and the support member (321) is slidably inserted in the slide groove (11) and adapted to the shape design of the slide groove (11).

5. The spiral winding repair device for underground pipelines according to claim 1 is characterized in that: The invention comprises a conveying mechanism (4) and a pressing mechanism (5), wherein the conveying mechanism (4) and the pressing mechanism (5) are respectively arranged on the guide assembly (21), the conveying mechanism (4) is tangent to the edge line of a ring formed by a plurality of groups of the guide assemblies (21), and the pressing mechanism (5) is located below the conveying mechanism (4). The conveying mechanism (4) is used to convey the repair belt (6) to the pressing mechanism (5), and the pressing mechanism (5) is used to press the repair belt (6).

6. The spiral winding repair device for underground pipelines according to claim 5 is characterized in that: The pressing mechanism (5) comprises a first pressing roller (51) and a second pressing roller (52), wherein the second pressing roller (52) is arranged on the supporting assembly (32), and the first pressing roller (51) is arranged on the guiding assembly (21), and the first pressing roller (51) and the second pressing roller (52) are arranged opposite to each other and are located below the conveying mechanism (4).

7. The spiral winding repair device for underground pipelines according to claim 6 is characterized in that: A plurality of the second pressing rollers (52) are provided, and the plurality of the second pressing rollers (52) are arranged in a one-to-one correspondence with the plurality of the supporting assemblies (32), and the second pressing rollers (52) and the guide assemblies (21) are arranged at intervals.

8. The spiral winding repair device for underground pipelines according to claim 1 is characterized in that: A pressing wheel (23) is provided on the guide assembly (21), and the pressing wheel (23) is used to guide the repair tape (6) after the repair tape (6) is separated from the guide assembly (21).

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