Traction structure and construction method of UV light-curing pipeline trenchless repair

Abstract

The present invention belongs to the technical field of ultraviolet light-curing pipeline repair, in particular to a traction structure and a construction method for non-excavation repair of ultraviolet light-curing pipelines. Aiming at the problems of uneven pulling in the existing pulling process, easy scratching of the hose, and easy contact of the pulling rope with the well wall or the well bottom, the following scheme is proposed, which includes a mobile vehicle, two vertical plates are fixed on the top of the mobile vehicle, and the same mobile frame is slidably connected between the two vertical plates, and two first winding rollers and a second winding roller are arranged in the mobile frame; it also includes a positioning plate, which is arranged in the well body, and the outer walls of the two first winding rollers are both wound with steel wire ropes. In the present invention, the pipeline and the positioning plate can be fixed according to the corresponding situation through the relative movement of multiple clamping arms, so as to ensure that the countersunk hole, the pulling rope and the pipeline are coaxial, so as to facilitate uniform pulling in the later stage.

Description

Technical Field

[0001] The invention relates to the technical field of ultraviolet light-curing pipeline repair, and in particular to a traction structure and a construction and use method for ultraviolet light-curing pipeline trenchless repair. Background Art

[0002] UV light curing repair technology refers to the process of first pulling a resin-soaked hose with compressed air to make it fit tightly against the inside of the pipe to be repaired without changing the position of the pipe to be repaired. Then, the resin in the hose will cure when exposed to ultraviolet light, and ultraviolet light is put into the inflated hose to control the ultraviolet light to travel at a certain speed in the hose, so that the hose is gradually cured from one end to the other, clinging to the inner wall of the pipe to be repaired, forming a hard tube-in-tube structure to achieve the purpose of repair. During the repair process, a pulling device is required to pull the hose and the ultraviolet lamp is moved inside the pipe.

[0003] The traction device in the prior art still has the following shortcomings when used:

[0004] 1. When the pulling rope in the pulling device pulls the hose and the UV lamp holder, due to the certain distance between the pulling rope and the axis of the pipeline to be repaired, the pulling deviation phenomenon is easy to occur, which leads to uneven pulling of the UV lamp holder of the inner lining when the pulling device is used, causing scratches on the hose and affecting the later repair of the hose to the pipeline;

[0005] 2. In addition, during the pulling process, the pulling rope is easy to contact with the well wall or the bottom of the well, or the cable is easy to be damaged, which reduces the efficiency of pipeline repair work;

[0006] In view of the above problems, the present invention document proposes a traction structure and a construction method for trenchless repair of ultraviolet light-curing pipelines. Summary of the invention

[0007] The purpose of the present invention is to solve the problems of uneven pulling in the existing pulling process, easy scratches on the hose, and easy contact between the pulling rope and the well wall or the bottom of the well, and to propose a traction structure and construction method for non-excavation repair of ultraviolet light-curing pipelines.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A traction structure for trenchless repair of ultraviolet light-cured pipelines comprises a mobile vehicle, two vertical plates are fixed on the top of the mobile vehicle, a mobile frame is slidably connected between the two vertical plates, and two first winding rollers and a second winding roller are arranged in the mobile frame;

[0010] It also includes a positioning plate, which is arranged in the well body, and the outer walls of the two first winding rollers are both wound with steel wire ropes, and the bottom ends of the two steel wire ropes are both fixed with connecting arms, and the two connecting arms are fixed on both sides of the positioning plate. The cooperation between the steel wire rope and the connecting arm is used to control the lifting and lowering of the positioning plate;

[0011] It also includes a plurality of clamping arms, which are all arranged on one side of the positioning plate and are used to fix the positioning plate and the pipeline and make the positioning plate and the pipeline coaxial;

[0012] A lifting structure, arranged in the mobile frame, for controlling the lifting and lowering of the positioning plate;

[0013] The mobile structure is arranged on the top of the mobile vehicle and is used to control the positioning plate to approach the pipeline by moving the mobile frame;

[0014] A clamping concentric structure is arranged in the positioning plate, and is used to fix the positioning plate and the pipeline and make the positioning plate and the pipeline coaxial;

[0015] The pulling structure is arranged on one side of the mobile frame and is used to complete the pulling operation of the lining hose and the ultraviolet lamp frame.

[0016] In a possible design, the lifting structure includes two rotating shafts rotating in the moving frame through a base plate, the two first winding rollers are respectively fixedly sleeved on the outer walls of the two rotating shafts, one end of the two rotating shafts is fixed with a worm gear, one side of the moving frame is rotatably connected to a rotating rod through a base, the outer walls of the two rotating rods are fixed with a worm sleeve, the two worm sleeves are in opposite directions, the two worm sleeves are respectively meshed with the two worm wheels, and are used to drive the two worm wheels to rotate towards each other, and one end of the rotating rod extends to one side of the vertical plate and is fixed with a driving The movable handle is used to drive the rotating rod to rotate. Two first make way holes are provided at the bottom of the movable frame for making way for the wire rope. A load-bearing block is fixedly embedded at the bottom of the positioning plate to keep the positioning plate in a vertical state when it moves downward. The rotating rod is driven to rotate by the driving handle. The two worm sleeves on the rotating rod are in opposite directions. The rotating rod drives the two worm wheels to rotate towards each other through the worm sleeves. The worm wheel drives the first winding roller to rotate through the rotating shaft. After the first winding roller releases the winding of the wire rope, the positioning plate is lowered into the well body to facilitate the connection of the positioning plate with the pipeline at a later time.

[0017] Base comprises support, cast, and frame upper is provided with guide rail, and support and conveyer frames movable end contact site are provided with recoil spring, and castor is arranged on the pin of base bottom four, to carry mobile handler location.

[0018] In a possible design, the clamping concentric structure includes a countersunk hole arranged at the center position of the positioning plate, and a plurality of first movable grooves are provided on a side of the positioning plate close to the pipe, and a plurality of first movable grooves are rotatably connected with screw rods, and ends of the plurality of screw rods close to each other are rotatably extended into the countersunk hole and are fixed with bevel gears, and an inner wall of one side of the countersunk hole is rotatably connected with a bevel gear ring, and the bevel gear ring is meshed with a plurality of bevel gears, and L-shaped plates threadedly connected to the screw rods are slidably connected in the plurality of first movable grooves, and ends of the plurality of L-shaped plates away from each other are respectively fixedly connected to corresponding clamping arms, and the cooperation between the screw rod and the L-shaped plate is used to control the movement of the clamping arm. A third motor is fixed on the top of the positioning plate, and the output shaft of the third motor is fixedly connected to the corresponding screw through a coupling; the clamping arm extends into the pipeline, and the third motor drives the screw to rotate, and the screw drives the remaining screws to rotate through the cooperation of the bevel gear and the bevel gear ring. At this time, the multiple clamping arms and the L-shaped plates move outward under the action of the screw, and the multiple clamping arms can contact the inner wall of the pipeline to fix the positioning plate and the pipeline. At this time, the countersunk hole and the pulling rope passing through the countersunk hole are coaxial with the pipeline to avoid offset during later pulling. In addition, the side of the multiple clamping arms close to each other can be controlled to contact the outer wall of the pipeline to complete the fixation of the positioning plate and the pipeline.

[0019] In a possible design, the pulling structure includes a sliding plate fixed on one side of the mobile frame, the second winding roller is rotatably arranged in the mobile frame, a second motor is fixed to the top of the sliding plate, the output shaft of the second motor is fixedly connected to one end of the second winding roller through a coupling, a pulling rope is wound around the outer wall of the second winding roller, the bottom end of the pulling rope passes through a countersunk hole, a second moving groove is provided in one of the vertical plates, and the sliding plate passes through the second moving groove and is slidably connected to the second moving groove, so as to make the moving frame move more smoothly.

[0020] In a possible design, a through hole is provided in the movable frame, and a guide ring matching the through hole is fixed on the top of the movable frame, and the inner wall of the guide ring is arc-shaped, which is used to prevent wear of the pulling rope, and the bottom end of the pulling rope passes through the through hole and the guide ring; during the winding process of the second winding roller, the pulling rope moves on the outer wall of the second winding roller, and the setting of the guide ring can ensure that the pulling rope is always pulled in one position, avoiding deviation during pulling.

[0021] In a possible design, the side of the positioning plate away from the pipeline is rotatably connected to a guide wheel through a base for guiding the pulling rope; during the process of the guide wheel guiding the pulling rope, the pulling rope is close to the bottom of the guide wheel, so that the pulling rope can be coaxial with the countersunk hole and the pipeline, ensuring that the lining hose and the ultraviolet lamp holder are evenly pulled during the pulling process of the pulling rope.

[0022] In a possible design, three second clearance holes are provided in the mobile vehicle, and the second clearance holes are used to make way for the pulling rope and the wire rope, and universal wheels with brakes are fixed at the four corners of the bottom of the mobile vehicle.

[0023] In a possible design, a slide groove is provided on the side of the positioning plate away from the pipeline, a slider is slidably connected in the slide groove, a sliding arm is fixed on the side of the slider away from the pipeline, a load-bearing plate is fixed at the bottom of the sliding arm, and a plurality of movable wheels are rotatably connected to the bottom of the load-bearing plate through a wheel axle; when the positioning plate is lowered into the well body, the movable wheels fit into the bottom inner wall of the well body, and the cooperation of the load-bearing plate and the sliding arm can ensure that the positioning plate avoids tilting during movement.

[0024] In this application, the construction and use method of the traction structure for the trenchless repair of ultraviolet light-cured pipelines includes the following steps:

[0025] S1. Positioning preparation: The mobile vehicle is placed above the well body, and the driving handle drives the rotating rod to rotate, and the wire rope is released by the worm gear and the worm sleeve to lower the positioning plate into the well; at the same time, the pulling rope passes through the countersunk hole and is connected to the lining hose or ultraviolet lamp holder to be pulled;

[0026] S2. Vertical movement: The first motor drives the screw to rotate, and cooperates with the sliding block to drive the moving frame and the positioning plate to move smoothly down along the well body; the design of the load-bearing block and the moving wheel ensures that the positioning plate remains vertical throughout the whole process to avoid tilting, which is convenient for subsequent operations;

[0027] S3, fixed positioning: After moving into position, the third motor drives the screw rod, and through the bevel gear linkage, multiple clamping arms are synchronously expanded outwards, close to the inner wall of the pipeline, so as to achieve a stable fixation of the positioning plate and the pipeline, ensuring that the pulling rope and the pipeline are coaxial;

[0028] S4. Adaptive adjustment: In the case of pulling the UV lamp holder, the clamping arm needs to be adjusted to clamp the outer wall of the pipe, and the connection between the positioning plate and the pipe needs to be fixed again to ensure the pulling stability;

[0029] S5, pulling operation: the second motor starts and drives the second reel to reel in the pulling rope, so as to achieve smooth pulling of the lining hose or the ultraviolet lamp holder; during the process, the guide ring ensures the stability of the pulling rope path to prevent deviation, thereby ensuring smooth pulling operation.

[0030] Beneficial effects:

[0031] In the present invention, a countersunk hole is provided at the center position of the positioning disk, and screw rods are rotatably connected in the plurality of first movable grooves, and the plurality of first movable grooves are transmission-connected through bevel gears and bevel gear rings, and L-shaped plates threadedly connected to the screw rods are slidably connected in the plurality of first movable grooves; the screw rods are driven to rotate by the cooperation of the bevel gears and the bevel gear rings, and the plurality of clamping arms and the L-shaped plates move toward each other under the action of the screw rods, and then the positioning disk and the pipeline can be fixed from the inner wall and the outer wall of the pipeline through the clamping arms, and at this time, the countersunk hole and the pulling rope passing through the countersunk hole are coaxial with the pipeline, so as to avoid the deviation phenomenon during the later pulling;

[0032] In the present invention, a through hole is provided in the movable frame, a guide ring matching the through hole is fixed on the top of the movable frame, and the inner wall of the guide ring is arc-shaped; during the winding process of the second winding roller, the pulling rope moves on the outer wall of the second winding roller, and the setting of the guide ring can ensure that the pulling rope is always pulled at one position, avoiding deviation during pulling;

[0033] A worm gear is fixed at one end of the two rotating shafts, and a rotating rod is rotatably connected to one side of the moving frame through a base, and worm sleeves are fixed on the outer walls of the two rotating rods. The two worm sleeves are in opposite directions, and the two worm sleeves are respectively meshed with the two worm wheels. A load-bearing block is fixedly embedded at the bottom of the positioning plate, which is used to keep the positioning plate in a vertical state when the positioning plate moves downward; the rotating rod is driven to rotate by the driving handle, and the two worm sleeves on the rotating rod are in opposite directions. The rotating rod drives the two worm wheels to rotate towards each other through the worm sleeve, and the worm wheel drives the first winding roller to rotate through the rotating shaft. After the first winding roller releases the winding of the wire rope, the positioning plate is lowered into the well body, which is convenient for the later connection of the positioning plate and the pipeline.

[0034] In the present invention, the pipeline and the positioning plate can be fixed according to the corresponding situation through the relative movement of multiple clamping arms, ensuring that the countersunk hole, the pulling rope and the pipeline are coaxial, which is convenient for uniform pulling in the later stage. In addition, the setting of the guide wheel and the guide ring can prevent the pulling rope from being pulled out of alignment and wear during the pulling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A schematic diagram of the three-dimensional structure of a traction structure for trenchless repair of ultraviolet light-curing pipelines provided in Example 1 of the present invention;

[0036] Figure 2 A schematic diagram of a three-dimensional cross-sectional structure of a traction structure for trenchless repair of ultraviolet light-curing pipelines provided in Example 1 of the present invention;

[0037] Figure 3 A schematic diagram of a three-dimensional explosion structure of a traction structure for trenchless repair of ultraviolet light-curing pipelines provided in Example 1 of the present invention;

[0038] Figure 4 A schematic diagram of a three-dimensional exploded structure of a first winding roller, a moving frame and a rotating rod of a traction structure for trenchless repair of ultraviolet light-curing pipelines provided in Example 1 of the present invention;

[0039] Figure 5 A schematic diagram of the three-dimensional structure of a moving frame, a second winding roller and a guide ring of a traction structure for trenchless repair of ultraviolet light-curing pipelines provided in Example 1 of the present invention;

[0040] Figure 6 A schematic diagram of the three-dimensional structure of the positioning plate and the clamping arm of the traction structure for trenchless repair of ultraviolet light-curing pipelines provided in Example 1 of the present invention;

[0041] Figure 7 A schematic diagram of a three-dimensional exploded structure of a positioning plate and a clamping arm of a traction structure for trenchless repair of ultraviolet light-curing pipelines provided in Example 1 of the present invention;

[0042] Figure 8 for Figure 7 The enlarged structural diagram at A in the middle;

[0043] Fig. 9 A schematic diagram of a three-dimensional cross-sectional structure of a positioning plate of a traction structure for trenchless repair of ultraviolet light-curing pipelines provided in Example 1 of the present invention;

[0044] Fig.10 This is a schematic diagram of the three-dimensional exploded structure of the positioning plate, sliding arm and moving wheel of the traction structure for trenchless repair of ultraviolet light-curing pipelines provided in Example 2 of the present invention.

[0045] In the figure: 1, well body; 2, pipeline; 3, mobile car; 4, positioning plate; 5, vertical plate; 6, mobile frame; 7, rotating shaft; 8, first winding roller; 9, wire rope; 10, worm gear; 11, rotating rod; 12, worm sleeve; 13, driving handle; 14, first clearance hole; 15, connecting arm; 16, universal wheel with brake; 17, countersunk hole; 18, bevel gear ring; 19, first moving groove; 20, screw rod; 21, L-shaped plate; 22, clamping arm; 23, Bevel gear; 24, guide rod; 25, screw rod; 26, sliding block; 27, first motor; 28, second movable groove; 29, clearance groove; 30, second winding roller; 31, sliding plate; 32, second motor; 33, pulling rope; 34, through hole; 35, guide ring; 36, guide wheel; 37, third motor; 38, second clearance hole; 39, sliding groove; 40, slider; 41, sliding arm; 42, load-bearing plate; 43, moving wheel; 44, load-bearing block. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0047] Example 1

[0048] Reference Figure 1-Figure 4 , traction structure, which is used in the field of ultraviolet light-curing pipeline repair. First, a stable mobile vehicle 3 is constructed, on the top of which two vertical risers 5 are installed by welding or bolting. The risers 5 are kept parallel and the spacing is moderate. A slidable mobile frame 6 is installed between the two risers 5. The mobile frame 6 is connected to the risers 5 by a slide rail or a slider to ensure that the mobile frame 6 can slide smoothly along the risers 5. Inside the mobile frame 6, two first winding rollers 8 and a second winding roller 30 are installed. The first winding roller 8 is used to control the retraction and release of the wire rope 9, and the second winding roller 30 can be configured according to subsequent specific needs, such as for pulling the lining hose or the ultraviolet lamp frame.

[0049] Reference Figure 5 and Figure 6 A positioning plate 4 is arranged in the well body 1. Connecting arms 15 are fixed on both sides of the positioning plate 4, and the top of the connecting arm 15 is fixedly connected to the bottom end of the wire rope 9. The wire rope 9 is wound around the two first winding rollers 8, and the other end of the wire rope 9 is firmly fixed on the connecting arm 15. In this way, the lifting and lowering of the positioning plate 4 can be achieved by controlling the rotation of the first winding roller 8.

[0050] Reference Figure 4, lifting structure: two rotating shafts 7 are installed in the mobile frame 6, and a first winding roller 8 is fixedly sleeved on each rotating shaft 7. A worm gear 10 is fixed at one end of the rotating shaft 7. On one side of the mobile frame 6, a rotating rod 11 is installed through a base, and two worm sleeves 12 in opposite directions are fixed on the rotating rod 11. The worm sleeve 12 is meshed with the worm gear 10 to ensure that the rotation of the rotating rod 11 can drive the two worm gears 10 to rotate in opposite directions. One end of the rotating rod 11 extends to one side of the vertical plate 5 and is fixed with a driving handle 13. By rotating the driving handle 13, the rotating rod 11 can be driven to rotate, thereby controlling the retraction and release of the first winding roller 8 to realize the lifting and lowering of the positioning plate 4. A load-bearing block 44 is embedded at the bottom of the positioning plate 4 to ensure that the positioning plate 4 remains in a vertical state when moving. A yielding groove 29 is provided in one of the vertical plates 5 to yield to the rotating rod 11, and two first yielding holes 14 are provided in the mobile frame 6 to yield to the wire rope 9.

[0051] Reference Figure 3 , Mobile structure: A guide rod 24 and a screw 25 are installed on the top of the mobile vehicle 3 through a base. The guide rod 24 is used to provide a sliding guide, and the screw 25 is used to drive the mobile frame 6 to move. Two sliding blocks 26 are fixed at the bottom of the mobile frame 6. One of the sliding blocks 26 is slidably connected to the guide rod 24, and the other sliding block 26 is threadedly connected to the screw 25. A first motor 27 is installed on the top of the mobile vehicle 3, and its output shaft is fixedly connected to one end of the screw 25 through a coupling.

[0052] Specifically, the first motor 27 is started to drive the screw rod 25 to rotate, thereby driving the moving frame 6 to slide along the guide rod 24 to achieve the positioning plate 4 approaching or moving away from the pipeline 2.

[0053] Reference Figure 6 , a plurality of clamping arms 22 are installed on one side of the positioning plate 4. The design of the clamping arms 22 should be able to be inserted into the pipe 2, and the positioning plate 4 and the pipe 2 are firmly fixed and ensured to be coaxial.

[0054] Reference Figure 6-Figure 9, Clamping concentric structure: A countersunk hole 17 is opened at the center of the positioning disk 4, and the hole is used for subsequent installation and connection of related components. A bevel gear ring 18 is rotatably connected to the inner wall of one side of the countersunk hole 17, and the bevel gear ring 18 will serve as a transmission component and mesh with multiple bevel gears 23. A plurality of first moving grooves 19 are opened on the side of the positioning disk 4 close to the pipe 2, and the number of these grooves matches the number of clamping arms 22. A screw rod 20 is rotatably connected in each first moving groove 19, and the ends of these screw rods 20 that are close to each other extend into the countersunk hole 17, and a bevel gear 23 is fixed at the end thereof. An L-shaped plate 21 is slidably connected in each first moving groove 19, and these L-shaped plates 21 are threadedly connected to the screw rod 20, so that the rotation of the screw rod 20 will drive the L-shaped plate 21 to move along the axial direction of the screw rod 20. The ends of the L-shaped plates 21 that are away from each other are fixedly connected to the corresponding clamping arms 22, so that when the L-shaped plates 21 move, the clamping arms 22 will also move accordingly. A third motor 37 is fixed on the top of the positioning plate 4 , and the output shaft of the motor is fixedly connected to one of the lead screws 20 via a coupling.

[0055] Specifically, when the third motor 37 is started, it drives the screw rod 20 to rotate, and due to the meshing action of the bevel gear 23 and the bevel gear ring 18, the remaining screw rods 20 will also rotate synchronously. When the screw rod 20 rotates, the L-shaped plate 21 will move outward under the action of the thread of the screw rod 20, thereby driving the clamping arm 22 to move outward until the clamping arm 22 contacts the inner wall of the pipe 2, thereby fixing the positioning plate 4 and the pipe 2.

[0056] In this way, it can be ensured that the countersunk hole 17 and the pulling rope 33 passing therethrough are coaxial with the pipe 2, thereby avoiding deviation during the pulling process.

[0057] Reference Figure 3 and Figure 5 , Pulling structure configuration: On one side of the mobile frame 6, a pulling structure is configured to complete the pulling operation of the lining hose, ultraviolet lamp rack and other components

[0058] Reference Figure 3 and Figure 5 , Pulling structure: A sliding plate 31 is fixed on one side of the mobile frame 6, and the sliding plate 31 is used to install and support related components. A second motor 32 is fixed on the top of the sliding plate 31, and the output shaft of the motor is fixedly connected to one end of the second winding roller 30 through a coupling. A second winding roller 30 is rotatably arranged in the mobile frame 6, and a pulling rope 33 is wound around the outer wall of the roller. The bottom end of the pulling rope 33 passes through the countersunk hole 17 and is connected to the repair device or other components that need to be pulled inside the pipeline 2. A second moving groove 28 is opened in one of the vertical plates 5, and the sliding plate 31 passes through the groove and is slidably connected to the groove wall.

[0059] This design makes the moving frame 6 more stable when moving, and reduces the possibility of shaking and deviation.

[0060] Reference Figure 4 and Figure 5 A through hole 34 is provided in the mobile frame 6 for the penetration of the pulling rope 33. A guide ring 35 matching the through hole 34 is fixed on the top of the mobile frame 6, and the inner wall of the ring is an arc-shaped design.

[0061] Specifically, when the pulling rope 33 moves during the winding process of the second winding roller 30, the guide ring 35 can ensure that the pulling rope 33 is always pulled at a fixed position, thereby avoiding wear and reduced efficiency due to friction and deviation.

[0062] Reference Figure 7 and Fig. 9 A guide wheel 36 is installed on the side of the positioning plate 4 away from the pipeline 2 through the base. The design of the guide wheel 36 ensures that when the pulling rope 33 passes through, it can be guided close to its bottom.

[0063] During installation, the position and angle of the guide wheel 36 need to be adjusted so that its axis coincides or nearly coincides with the central axis of the countersunk hole 17 and the pipe 2. In this way, when the pulling rope 33 is pulled, it can effectively reduce the deviation due to its close contact with the bottom of the guide wheel 36, ensuring that the lining hose and the ultraviolet lamp holder are pulled evenly and stably during the pulling process, thereby improving the consistency and quality of the repair effect.

[0064] Reference Figure 3 In order to improve the flexibility and stability of the mobile vehicle 3 in complex environments, this embodiment sets three second clearance holes 38 inside the mobile vehicle 3. The size and position of these second clearance holes 38 are precisely calculated to ensure that they can accommodate and guide the smooth passage of the pulling rope 33 and the wire rope 9 at the same time, avoiding entanglement or jamming during the movement. In addition, universal wheels 16 with brakes are fixedly installed at the four corners of the bottom of the mobile vehicle 3. These universal wheels can not only move flexibly in different directions, but also have a braking function, which is convenient for quickly fixing the position of the mobile vehicle 3 when needed, ensuring the safety and stability of the operation.

[0065] The above specific implementation method is feasible and operable, and can ensure that the expected repair effect is achieved in practical applications.

[0066] Through the above specific implementation methods, the traction structure of the UV light-curing pipeline trenchless repair of the present invention can efficiently and accurately complete the lifting, movement and fixation of the positioning plate 4 to the pipeline 2, providing strong support for subsequent lining hose laying, UV curing and other operations.

[0067] Example 2

[0068] refer to Fig.10 , improved on the basis of Example 1: In order to prevent the positioning plate 4 from tilting when it descends into the well body 1, thereby affecting the smooth progress of the repair work, a slide groove 39 structure is designed on the side of the positioning plate 4 away from the pipe 2. In the slide groove 39, a slider 40 is slidably connected, and the slider 40 can slide freely in the slide groove 39 but is subject to certain restrictions. A sliding arm 41 is fixed on the side of the slider 40 away from the pipe 2, and a bearing plate 42 is fixed at the bottom of the sliding arm 41. The bottom of the bearing plate 42 is connected to a plurality of moving wheels 43 through the rotation of the wheel axle.

[0069] Specifically, when the positioning plate 4 is lowered into the well body 1, the moving wheel 43 will naturally fit the bottom inner wall of the well body 1. At this time, through the support and cooperation of the bearing plate 42 and the sliding arm 41, even in the well body 1 with uneven terrain or slight inclination, the stability of the positioning plate 4 during movement can be effectively guaranteed to prevent it from tilting, thereby ensuring the smooth progress of the repair work.

[0070] The construction and use method of the traction structure for the trenchless repair of ultraviolet light-cured pipelines includes the following steps:

[0071] S1, move the mobile vehicle 3 to the top of the well body 1, drive the rotating rod 11 to rotate by driving the handle 13, the two worm sleeves 12 on the rotating rod 11 are in opposite directions, the rotating rod 11 drives the two worm wheels 10 to rotate in opposite directions through the worm sleeves 12, the worm wheel 10 drives the first winding roller 8 to rotate through the rotating shaft 7, after releasing the winding of the wire rope 9 by the first winding roller 8, the positioning plate 4 is lowered into the well body 1, at the same time, one end of the pulling rope 33 passes through the countersunk hole 17 and is connected to the pipeline 2 and the lining hose or ultraviolet lamp holder to be pulled;

[0072] S2, the first motor 27 drives the screw 25 to rotate, and the screw 25 cooperates with the corresponding sliding block 26 to drive the moving frame 6 and the positioning plate 4 to move. Under the action of the load-bearing block 44 embedded at the bottom of the positioning plate 4, the positioning plate 4 can always maintain a vertical state when moving, which can facilitate the later insertion of the clamping arm 22 into the pipe 2. In addition, when the positioning plate 4 descends into the well body 1, the moving wheel 43 fits the bottom inner wall of the well body 1. The cooperation of the load-bearing plate 42 and the sliding arm 41 can further ensure that the positioning plate 4 does not appear tilted during the movement.

[0073] S3, when the mobile frame 6 pulls the positioning plate 4 toward the pipe 2 through the steel wire rope 9, the clamping arm 22 extends into the pipe 2, and the third motor 37 drives the screw rod 20 to rotate. The screw rod 20 drives the remaining screw rods 20 to rotate through the cooperation of the bevel gear 23 and the bevel gear ring 18. At this time, the multiple clamping arms 22 and the L-shaped plate 21 move outward under the action of the screw rod 20, and the multiple clamping arms 22 can contact the inner wall of the pipe 2 to fix the positioning plate 4 and the pipe 2. At this time, the countersunk hole 17 and the pulling rope 33 passing through the countersunk hole 17 are coaxial with the pipe 2 to avoid displacement during later pulling;

[0074] S4. When the ultraviolet lamp holder is pulled, the pipe 2 and the corresponding lining hose are both in a closed state. At this time, the screw rod 20 drives the L-shaped plate 21 to rotate inward. At this time, the corresponding clamping arm 22 can clamp the outer wall of the pipe 2, and then the positioning plate 4 can be fixed to the pipe 2 again, which is convenient for the pulling of the pulling rope 33 in the later stage.

[0075] S5. During pulling, the second motor 32 drives the second winding roller 30 to wind up the pulling rope 33 to complete the pulling operation of the lining hose or the ultraviolet lamp holder. In addition, during the winding process of the second winding roller 30, the pulling rope 33 moves on the outer wall of the second winding roller 30. The setting of the guide ring 35 can ensure that the pulling rope 33 is always pulled in one position to avoid deviation during pulling.

[0076] However, as is well known to those skilled in the art, the working principles and wiring methods of the third motor 37, the second motor 32 and the first motor 27 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any optional selections according to their needs or convenience.

[0077] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A construction and use method of a traction structure for trenchless repair of ultraviolet light-curing pipelines, characterized in that: The traction structure comprises a moving vehicle (3), two vertical plates (5) are fixed on the top of the moving vehicle (3), a moving frame (6) is slidably connected between the two vertical plates (5), and two first winding rollers (8) and a second winding roller (30) are arranged inside the moving frame (6); It also includes a positioning plate (4) which is arranged in the well body (1), the outer walls of the two first winding rollers (8) are each wound with a steel wire rope (9), the bottom ends of the two steel wire ropes (9) are each fixed with a connecting arm (15), the two connecting arms (15) are fixed on both sides of the positioning plate (4), and the steel wire rope (9) and the connecting arm (15) cooperate to control the lifting and lowering of the positioning plate (4); It also includes a plurality of clamping arms (22), each of which is arranged on one side of the positioning plate (4) and is used to fix the positioning plate (4) and the pipeline (2), and to make the positioning plate (4) and the pipeline (2) coaxial; A lifting structure, arranged in the moving frame (6) and used to control the lifting and lowering of the positioning plate (4); A mobile structure, arranged on the top of the mobile vehicle (3), and used to control the positioning plate (4) to approach the pipeline (2) by moving the mobile frame (6); A clamping concentric structure, arranged in the positioning plate (4), used to fix the positioning plate (4) and the pipeline (2) and to make the positioning plate (4) and the pipeline (2) coaxial; A pulling structure, arranged on one side of the movable frame (6), for completing the pulling operation of the lining hose and the ultraviolet lamp frame; The lifting structure comprises two rotating shafts (7) which are rotated in the moving frame (6) through a base plate, the two first winding rollers (8) are respectively fixedly sleeved on the outer walls of the two rotating shafts (7), one end of the two rotating shafts (7) is fixed with a worm gear (10), one side of the moving frame (6) is rotatably connected to a rotating rod (11) through a base, the outer walls of the two rotating rods (11) are fixed with a worm sleeve (12), the two worm sleeves (12) are in opposite directions, and the two worm sleeves (12) are fixed with a worm gear (10) which is fixed to the outer walls of the two rotating rods (11). 12) are respectively meshed with the two worm wheels (10) and are used to drive the two worm wheels (10) to rotate towards each other. One end of the rotating rod (11) extends to one side of the vertical plate (5) and is fixed with a driving handle (13) for driving the rotating rod (11) to rotate. The bottom of the movable frame (6) is provided with two first clearance holes (14) for making way for the steel wire rope (9). The bottom of the positioning plate (4) is fixedly embedded with a load-bearing block (44) for keeping the positioning plate (4) in a vertical state when it moves downward; The mobile structure comprises a guide rod (24) fixed to the top of the mobile vehicle (3) via a base, the top of the mobile vehicle (3) is rotatably connected to a screw rod (25) via the base, the guide rod (24) and the screw rod (25) are both located below the mobile frame (6), and two sliding blocks (26) are fixed to the bottom of the mobile frame (6), one of the sliding blocks (26) is slidably connected to the guide rod (24), and the other sliding block (26) is threadedly connected to the screw rod (25), and the mobile vehicle (3) A first motor (27) is fixed to the top of the frame through a frame, an output shaft of the first motor (27) is fixedly connected to one end of a screw rod (25) through a coupling, the first motor (27) cooperates with the screw rod (25) to drive the sliding block (26) and the moving frame (6) to move, so as to make the positioning plate (4) close to the pipe (2), one of the vertical plates (5) is provided with a clearance groove (29), one end of the rotating rod (11) passes through the clearance groove (29), and the clearance groove (29) is used to make way for the rotating rod (11); The clamping concentric structure comprises a countersunk hole (17) arranged at the center position of the positioning plate (4); a plurality of first movable grooves (19) are arranged on a side of the positioning plate (4) close to the pipe (2); screw rods (20) are rotatably connected in the plurality of first movable grooves (19); one end of the plurality of screw rods (20) close to each other is rotatably extended into the countersunk hole (17) and is fixed with a bevel gear (23); a bevel gear ring (18) is rotatably connected to the inner wall of one side of the countersunk hole (17); and the bevel gear ring (18) is rotatably connected to the plurality of bevel gears (23). The gears (23) are meshed with each other, and a plurality of the first movable grooves (19) are slidably connected with L-shaped plates (21) threadedly connected to the screw rod (20), and the ends of the plurality of L-shaped plates (21) that are away from each other are fixedly connected to the corresponding clamping arms (22), and the screw rod (20) and the L-shaped plates (21) cooperate to control the movement of the clamping arms (22), and a third motor (37) is fixed on the top of the positioning plate (4), and the output shaft of the third motor (37) is fixedly connected to the corresponding screw rod (20) through a coupling; The pulling structure comprises a sliding plate (31) fixed to one side of the moving frame (6); the second winding roller (30) is rotatably arranged in the moving frame (6); a second motor (32) is fixed to the top of the sliding plate (31); an output shaft of the second motor (32) is fixedly connected to one end of the second winding roller (30) via a coupling; a pulling rope (33) is wound around the outer wall of the second winding roller (30); the bottom end of the pulling rope (33) passes through a countersunk hole (17); a second moving groove (28) is arranged inside one of the vertical plates (5); and the sliding plate (31) passes through the second moving groove (28) and is slidably connected to the second moving groove (28); The movable frame (6) is provided with a through hole (34), and a guide ring (35) matching the through hole (34) is fixed on the top of the movable frame (6), and the inner wall of the guide ring (35) is arc-shaped, so as to prevent the pulling rope (33) from being worn, and the bottom end of the pulling rope (33) passes through the through hole (34) and the guide ring (35); A side of the positioning plate (4) away from the pipeline (2) is rotatably connected to a guide wheel (36) via a base, and is used to guide the pulling rope (33); The mobile vehicle (3) is provided with three second clearance holes (38), and the second clearance holes (38) are used to make way for the pulling rope (33) and the steel wire rope (9). Universal wheels (16) with brakes are fixed at the four corners of the bottom of the mobile vehicle (3); A sliding groove (39) is provided on the side of the positioning plate (4) away from the pipe (2), a sliding block (40) is slidably connected in the sliding groove (39), a sliding arm (41) is fixed on the side of the sliding block (40) away from the pipe (2), a bearing plate (42) is fixed on the bottom of the sliding arm (41), and a plurality of moving wheels (43) are rotatably connected to the bottom of the bearing plate (42) via a wheel shaft; The construction and use method comprises the following steps: S1. Positioning preparation: The mobile vehicle (3) is placed above the well body (1), and the rotating rod (11) is driven to rotate by the driving handle (13), and the wire rope (9) is released by the worm gear (10) and the worm sleeve (12), so that the positioning plate (4) is lowered into the well; at the same time, the pulling rope (33) passes through the countersunk hole (17) and is connected to the lining hose or ultraviolet lamp holder to be pulled; S2. Vertical movement: The first motor (27) drives the screw rod (25) to rotate, and cooperates with the sliding block (26) to drive the moving frame (6) and the positioning plate (4) to move smoothly downward along the well body (1); the bearing block (44) and the moving wheel (43) are designed to ensure that the positioning plate (4) remains vertical throughout the whole process to avoid tilting, so as to facilitate subsequent operations; S3, fixed positioning: after moving into position, the third motor (37) drives the screw rod (20), which is linked by the bevel gear (23) to make the multiple clamping arms (22) synchronously expand outwards and closely adhere to the inner wall of the pipe (2), so as to achieve a stable fixation of the positioning plate (4) and the pipe (2), and ensure that the pulling rope (33) and the pipe (2) are coaxial; S4, adaptive adjustment: In the case of pulling the ultraviolet lamp holder, the clamping arm (22) needs to be adjusted so that it clamps the outer wall of the pipe (2), and the connection between the positioning plate (4) and the pipe (2) is fixed again to ensure the pulling stability; S5, pulling operation: the second motor (32) is started to drive the second reeling roller (30) to reel in the pulling rope (33), thereby achieving smooth pulling of the lining hose or the ultraviolet lamp holder; during the process, the guide ring (35) ensures that the path of the pulling rope (33) is stable and prevents deviation, thereby ensuring that the pulling operation proceeds smoothly.

Images