Traction repair device for trenchless pipeline

Abstract

The invention discloses a traction repair device for a trenchless pipeline, and mainly relates to the field of pipeline repair. Comprising a traction frame and a curing lamp frame, one side of the traction frame is slidably connected with a connecting frame used for being connected with a repairing hose, a connecting sleeve is arranged on one side of the connecting frame, a plurality of connecting blocks are arranged on the inner wall of the repairing hose, the connecting sleeve is sleeved with an annular air bag, and driving belts are symmetrically arranged in the connecting frame; a plurality of telescopic rods are slidably connected to the side face of the traction frame, a binding head is arranged on the outer side of the traction frame, a fixing block is arranged on the outer wall of the binding head, a binding shaft is rotatably connected to the fixing block, and a binding belt used for fixing a repairing hose to the outside of the binding head is arranged on the fixing block. The pipeline repairing device has the beneficial effects that the technical problem that in the pipeline repairing process, hose repairing operation is complex and inconvenient can be solved, the construction difficulty is lowered, and the pipeline repairing convenience and efficiency are improved.

Description

Technical Field

[0001] The present invention relates to the field of pipeline repair, and specifically to a traction repair device for trenchless pipelines. Background Art

[0002] When the damaged pipeline is located in a position where it is not easy to excavate, such as above a river or a building, a light-curing repair hose is usually used to repair the damaged position of the pipeline. During the repair operation, only construction pits need to be excavated on both sides of the damaged position of the pipeline, the pipeline in the construction pit is cut, and after the pipeline is cleaned, the repair hose is introduced into the damaged pipeline. After inflating to make the repair hose expand and fit the inner wall of the pipeline, a lamp holder is used to irradiate the repair hose to make it solidify and firmly adhere to the inner wall of the damaged pipeline, so as to achieve rapid repair of the pipeline without excavating the damaged position. However, during the process of introducing the repair hose into the pipeline, the repair hose needs to be folded, introduced to the other end of the pipeline and then opened, and then operations such as tying the head, inflating, and introducing the lamp holder are carried out, making the operations of introducing the repair hose and subsequent plugging and curing more complicated, requiring multiple people to cooperate in construction. The position of the construction pit is not large, and it is very inconvenient for multiple people to cooperate, affecting the efficiency and convenience of pipeline repair. Summary of the Invention

[0003] The purpose of the present invention is to provide a traction repair device for trenchless pipelines, which can solve the technical problem of the complicated and inconvenient operation of the repair hose during the pipeline repair process, improve the convenience of the operations of introducing and plugging and curing the repair hose, reduce the construction difficulty, and improve the convenience and efficiency of pipeline repair.

[0004] To achieve the above object, the present invention is realized through the following technical solutions:

[0005] A traction repair device for a trenchless pipeline comprises a traction frame and a curing lamp frame, one side of the traction frame is slidably connected with a connecting frame for connecting a repair hose, the traction frame is provided with a power assembly for driving the connecting frame to slide, the bottom of the traction frame is provided with a plurality of walking wheels that can move in the pipeline, the curing lamp frame passes through the traction frame and the connecting frame and enters the interior of the repair hose, one side of the connecting frame is provided with a connecting sleeve, the inner wall of the repair hose is provided with a plurality of connecting blocks used in conjunction with the connecting sleeve, the outer sleeve of the connecting sleeve is provided with an annular airbag, the annular airbag is expanded so that the end of the repair hose is stretched open and fits the repair hose To the inner wall of the pipeline, the interior of the connecting frame is symmetrically provided with a driving belt for driving the curing lamp frame to move, the side of the traction frame is slidably connected with multiple telescopic rods, the outer side of the traction frame is provided with a tying head, the end of the repair hose is expanded and sleeved on the outside of the tying head, the ends of the multiple telescopic rods are movably connected to the inner wall of the tying head, the tying head is connected with an air inlet pipe, the outer wall of the tying head is provided with a fixing block, the fixing block is rotatably connected with a tying shaft, the fixing block is provided with a cable tie for fixing the repair hose to the outside of the tying head, one end of the cable tie is wrapped around the outer wall of the repair hose and then wound around the tying shaft.

[0006] Furthermore, an arc-shaped plate is provided at the end of the telescopic rod, the centers of the multiple arc-shaped plates coincide, and the multiple arc-shaped plates are all threadedly connected to the inner wall of the tying head.

[0007] Furthermore, a plurality of fixing sleeves are provided on the side of the traction frame, the telescopic rod is slidably connected in the fixing sleeve, and a telescopic member for driving the telescopic rod to slide is provided in the fixing sleeve.

[0008] Furthermore, a driving roller and a driven roller are symmetrically rotatably connected on the side wall of the connecting frame, the driving belt is wound around the outside of the driving roller and the driven roller, a plurality of levers are provided on the driving belt, a plurality of support rods are provided on the side of the curing lamp frame, the ends of the support rods are rotatably connected to rollers, and the levers are in contact with the support rods.

[0009] Furthermore, the bundling shaft is provided with a through hole, one end of the cable tie passes through the through hole and is wound around the bundling shaft, and the fixed block is provided with a bundling motor for driving the bundling shaft to rotate.

[0010] Furthermore, the binding shaft is provided with a ratchet, and the fixing block is provided with a pawl used in conjunction with the ratchet.

[0011] Furthermore, the longitudinal sections of the traction frame and the connecting frame are both in the shape of a Chinese character U, and the connecting frame is slidably connected inside the traction frame.

[0012] Furthermore, the power assembly includes a power motor symmetrically arranged on the traction frame, a screw is provided on the output shaft of the power motor, a sliding hole is symmetrically provided on the traction frame, a slider is symmetrically provided on the connecting frame, the slider passes through the sliding hole and is slidably connected to the slider, and the screw passes through the slider and is threadedly connected to the slider.

[0013] Furthermore, the connecting sleeve is provided with a plurality of sockets, and the connecting block is movably plugged into the sockets.

[0014] Furthermore, the connecting block contacts one side of the inflated annular airbag.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The structure of the present invention comprises a traction frame and a curing lamp frame, one side of the traction frame is slidably connected with a connecting frame, the connecting frame is provided with a connecting sleeve, and the side wall of the repair hose is provided with a plurality of connecting blocks used in conjunction with the connecting sleeve. Such a structure makes it unnecessary to fold one end of the repair hose during the introduction process, and it is unnecessary to unfold it again after reaching the other end of the pipeline. It is only necessary to sleeve the end of the repair hose on the connecting sleeve in advance, fix it with the connecting block, and then use the traction rope to pull the traction frame to move along the inside of the pipeline under the action of the walking wheel, so that the introduction of the repair hose is smoother, and the subsequent operation of the end of the repair hose in the construction pit after introduction is more convenient, which simplifies the operation steps, reduces the construction intensity, and improves the convenience of the repair hose construction;

[0017] 2. An annular airbag is provided on the outer sleeve of the connecting sleeve. When the annular airbag expands, the end of the repair hose is stretched and fits on the inner wall of the pipe. The curing lamp holder passes through the traction frame and the connecting frame and enters the interior of the repair hose. The interior of the connecting frame is symmetrically provided with a driving belt for driving the curing lamp holder to move. When the curing lamp holder is introduced into the pipe, the annular airbag is inflated to expand it, so that the end of the repair hose is stretched. At this time, there is enough space at the end of the pipe to introduce the curing lamp holder. At this time, the curing lamp holder is introduced into the end of the pipe through the traction frame and the connecting frame. After the subsequent repair hose is expanded as a whole, it is only necessary to use the driving belt to completely send the curing lamp holder into the pipe. There is no need to inflate the entire repair hose and then introduce it into the curing lamp holder, which saves the step of closing and inflating the end of the repair hose and then opening it to introduce the curing lamp holder. After the subsequent connection and tying, the light curing operation can be directly performed, which further improves the efficiency of pipe repair.

[0018] 3. A plurality of telescopic rods are slidably connected to the side of the traction frame. The telescopic rods are movably connected to the inner wall of the tying head. A fixing block is provided on the outer wall of the tying head, and a tying shaft for tying the tie strap is rotatably connected to the fixing block. After the end of the repair hose is expanded by the annular airbag, such a structure uses the power assembly to drive the traction frame to slide towards the pipeline, so that the tying head connected to the traction frame enters the expanded end of the repair hose, and then the tying shaft rotates to tie the tie strap tightly, so that the repair hose is fixed to the tying head. After that, by ventilating the air inlet pipe on the tying head, the repair hose can be inflated and fitted to the inner wall of the pipeline. By moving the curing lamp holder driven by the traction rope, the light curing operation of the repair hose can be realized, making the operations of closing the end of the repair hose and introducing the curing lamp holder in the construction pit more convenient, without the need for multiple people to cooperate, greatly simplifying the operation steps and improving the efficiency and convenience of the entire pipeline repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] FIG Figure 1 is a three-dimensional structural schematic diagram of the present invention.

[0020] FIG Figure 2 is a front view of the present invention.

[0021] FIG Figure 3 is a sectional view of the present invention taken along the direction of A-A in FIG Figure 2

[0022] FIG Figure 4 is a sectional view of the present invention taken along the direction of B-B in FIG Figure 3

[0023] FIG Figure 5 is a partial enlarged view of part C in FIG Figure 4

[0024] FIG Figure 6 is a sectional view of the present invention taken along the direction of D-D in FIG Figure 3

[0025] FIG Figure 7 is a sectional view of the present invention taken along the direction of E-E in FIG Figure 3

[0026] FIG Figure 8 is a structural schematic diagram of the curing lamp holder of the present invention.

[0027] Reference numerals shown in the drawings:

[0028] ​​​​​1. Traction frame; 2. Curing lamp holder; 3. Repair hose; 4. Connecting frame; 5. Traveling wheel; 6. Connecting sleeve; 7. Connecting block; 8. Annular airbag; 9. Driving belt; 10. Telescopic rod; 11. Tie head; 12. Air inlet pipe; 13. Fixed block; 14. Binding shaft; 15. Cable tie; 16. Arc plate; 17. Fixed sleeve; 18. Telescopic member; 19. Driving roller; 20. Driven roller; 21. Poking rod; 22. Support rod; 23. Roller; 24. Through hole; 25. Binding motor; 26. Ratchet; 27. Pawl; 28. Power motor; 29. Screw; 30. Slide hole; 31. Slide block; 32. Jack. Detailed implementation manner

[0029] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by this application.

[0030] Refer to Figure 1 and Figure 2, the present invention relates to a traction repair device for trenchless pipelines. The main structure includes a traction frame 1 and a curing lamp frame 2. The traction frame 1 is dragged by a traction rope pre-inserted into the pipeline for movement. Multiple ultraviolet lamps are provided on the curing lamp frame 2 and are continuously powered through cables. The curing lamp frame 2 is also connected to the traction rope pre-inserted into the pipeline and is dragged to move inside the pipeline. A connecting frame 4 for connecting a repair hose 3 is slidably connected to one side of the traction frame 1. Specifically, a slide rail can be provided between the two, enabling the traction frame 1 and the connecting frame 4 to perform relative movement in the horizontal direction. The longitudinal cross-sectional dimensions of the traction frame 1 and the connecting frame 4 are both smaller than the inner diameter of the pipeline, allowing the traction frame 1 and the connecting frame 4 to smoothly move inside the pipeline with the repair hose 3. Specifically, the repair hose 3 includes an inner membrane layer, a fiber and resin layer, a waterproof layer, and an outer membrane layer from the inside to the outside. Among them, the fiber and resin layer can be cured after being irradiated by ultraviolet light, so as to firmly adhere to the inner wall of the pipeline. A power assembly for driving the sliding of the connecting frame 4 is provided on the traction frame 1. The power assembly can realize the automatic relative sliding movement between the two, further simplifying the subsequent operation steps and improving the convenience and efficiency of construction. Multiple traveling wheels 5 capable of moving inside the pipeline are provided at the bottom of the traction frame 1. The traveling wheels 5 are rotatably connected to the bottom of the traction frame 1 and can roll on the bottom inside the pipeline, making the movement of the traction frame 1 driving the repair hose 3 inside the pipeline smoother and making the introduction process of the repair hose 3 smoother and more efficient. The curing lamp frame 2 passes through the traction frame 1 and the connecting frame 4 and then enters the inside of the repair hose 3. Specifically, both the traction frame 1 and the connecting frame 4 have a horizontally through structure in the middle, enabling the curing lamp frame 2 to pass through the through position in the middle and then smoothly enter the inside of the pipeline. A connecting sleeve 6 is fixed to one side of the connecting frame 4 by welding or bolts. Multiple connecting blocks 7 for cooperating with the connecting sleeve 6 are provided on the inner wall of the repair hose 3. When the repair hose 3 is not inflated, its end is opened, then it is sleeved outside the connecting sleeve 6, and the connecting blocks 7 on the inner wall are used to connect with the connecting sleeve 6 to achieve the quick connection between the repair hose 3 and the connecting frame 4, thus preparing for the subsequent introduction of the repair hose 3;

[0031] The outer sleeve of the connecting sleeve 6 is provided with an annular airbag 8, which is made of elastic rubber material and can expand after gas is introduced. Specifically, an air pump is arranged on the connecting frame 4, and the air pump is connected with the annular airbag 8 through a conduit to realize automatic air supply to the annular airbag 8. The annular airbag 8 expands so that the end of the repair hose 3 is stretched and fits on the inner wall of the pipeline. When the repair hose 3 is introduced into the pipeline, only the end of the repair hose 3 is stretched and sleeved on the connecting sleeve 6, and the rest of the position is still in a folded state. Thereafter, the traction frame 1 can drive the repair hose 3 to move in the pipeline under the drive of the traction rope until the traction frame 1 moves to the outside of the other end of the pipeline, and only the connecting sleeve 6 and the annular airbag 8 on the connecting frame 4 remain in the pipeline. The smooth introduction of the repair hose 3 is achieved. After the repair hose 3 is introduced, the annular airbag 8 is ventilated and expanded, so that the end of the repair hose 3 is inflated and fits against the inner wall of the pipe. At this time, the connecting frame 4 and the traction frame 1 are synchronously lifted by the inflated annular airbag 8 and separated from the bottom of the pipe, so that the end of the repair hose 3 is temporarily fixed to the end of the pipe, making subsequent operations such as closing and inflating the end of the repair hose 3 more convenient. At this time, since the end of the repair hose 3 is stretched open, the position near the end is also stretched open by a certain gap, so there is enough space in the pipe to accommodate the curing lamp holder 2. At this time, the curing lamp holder 2 is introduced into the pipe after passing through the traction frame 1 and the connecting frame 4. The interior of the connecting frame 4 is symmetrically provided with a driving mechanism for driving the curing lamp holder 2 to move. The repair hose 3 is then sealed and inflated with the driving belts 9 on both sides to drive the curing lamp holder 2 to move until it completely enters the inflated repair hose 3. There is no need to open the sealed end of the repair hose 3 and then introduce it into the curing lamp holder 2, which saves the steps of sealing and reopening the end of the repair hose 3. After sealing and inflation, the light curing operation can be directly performed, which simplifies the operation steps and improves the efficiency of pipeline repair. The side of the traction frame 1 is slidably connected with a plurality of telescopic rods 10. The telescopic rods 10 slide in the radial direction of the pipeline, so that the traction frame 1 can be extended when the subsequent tying head 11 is installed, and cooperate with the tying head 11 with a larger longitudinal dimension. The tying head 11 is provided on the outside of the traction frame 1. One end of 11 is closed, and the other end cooperates with the repair hose 3. Specifically, a round hole is set at the closed end of the tying head 11, and the traction rope and cable of the curing lamp stand 2 pass through the round hole and can move relative to it. The tying head 11 is used to close the end of the repair hose 3, which is convenient for ventilation to the inside of the repair hose 3 so that the repair hose 3 is completely fitted on the inner wall of the pipeline. The end of the repair hose 3 is expanded and sleeved on the outside of the tying head 11. Preferably, the end of the repair hose 3 is cut open before connection, so that the end of the repair hose 3 can be more easily sleeved on the outside of the tying head 11. The ends of the multiple telescopic rods 10 are movably connected to the inner wall of the tying head 11. Such a structure makes the connection between the traction frame 1 and the tying head 11 faster and more convenient, and subsequent disassembly is also easier.The other end of the repair hose 3 is closed by using the existing structure of the tie 11. An air inlet pipe 12 is connected and provided on the tie 11. After the tie 11 is connected to the repair hose 3, air is passed through the air inlet pipe 12. A fixing block 13 is fixed on the outer wall of the tie 11 by welding or bolts. Preferably, a pressing block is slidably connected to the fixing block 13. A plurality of compression springs are arranged between the pressing block and the fixing block 13. The pressing block presses the repair hose 3 against the outer wall of the tie 11 to achieve preliminary positioning before bundling. A bundling shaft 14 is rotatably connected to the fixing block 13 through a bearing. A tie 15 for fixing the repair hose 3 outside the tie 11 is provided on the fixing block 13. The tie 15 is generally made of materials such as nylon to effectively bundle the repair hose 3 while ensuring effective fitting with the pipeline. One end of the tie 15 bypasses the outer wall of the repair hose 3 and then winds around the bundling shaft 14. The tie 15 surrounds the outside of the tie 11. After such a structure is connected to the plurality of telescopic rods 10 on the traction frame 1, the power assembly is used to drive the relative movement of the traction frame 1 and the connecting frame 4. At this time, the connecting frame 4 is fixed at the end of the pipeline under the action of the annular airbag 8. Therefore, the whole traction frame 1 will move towards the connecting frame 4, so that the tie 11 on the traction frame 1 enters the end of the expanded repair hose 3. The repair hose 3 enters between the outer wall of the tie 11 and the tie 15. Thereafter, the bundling shaft 14 rotates to make one end of the tie 15 contract until the tie 15 is completely tightened to bundle and fix the repair hose 3 on the outer wall of the tie 11, realizing the rapid closing of the end of the repair hose 3 by the tie 11. Thereafter, air is passed through the air inlet pipe 12 to make the whole repair hose 3 expand and then completely fit on the inner wall of the pipeline. Then, the driving belt 9 drives the curing lamp holder 2 to move until it completely enters the expanded repair hose 3. Thereafter, the preset traction rope is used to drive the curing lamp holder 2 to move in the repair hose 3 to realize the overall curing operation of the repair hose 3. After the curing is completed, the reverse operation is performed to remove the tie 11. After the annular airbag 8 is deflated, it is separated from the end of the repair hose 3. The redundant repair hose 3 at the end is cut off to complete this pipeline repair process, greatly reducing the operation steps for the end of the repair hose 3 in the construction pit, eliminating the need for multiple people to cooperate in the operation, and making the whole closing and disassembly process simpler and more convenient, greatly improving the efficiency and convenience of pipeline repair.,

[0032] A trenchless pipeline traction repair method includes the following steps:

[0033] S1. Introduction of the repair hose 3: Construction pits are excavated at both ends of the damaged position of the pipeline to be repaired. The pipeline in the construction pit is cut, and after the inner wall of the pipeline is cleaned, the traction frame 1 and the connecting frame 4 are placed into the pipeline. The end of the repair hose 3 is expanded and then sleeved on the connecting sleeve 6 and fixed by using a plurality of connecting blocks 7. Other positions of the repair hose 3 are in a folded state;

[0034] S2. Fix the fixation of the end of the repair hose 3. Use the towing rope preset in the pipeline to pull the towing frame 1 to move in the pipeline. Under the connection of the connecting frame 4, the repair hose 3 is gradually introduced into the pipeline to be repaired until the towing frame 1 moves to the outside of the other end of the pipeline, and only the connecting sleeve 6 and the annular airbag 8 remain inside the pipeline. At this time, ventilate the annular airbag 8 to make it expand and drive the end of the outer repair hose 3 to fit against the inner wall of the pipeline, so that the end of the repair hose 3 and the connecting frame 4 are temporarily fixed in the pipeline;

[0035] S3. Introduction of the curing lamp holder 2. After the end of the repair hose 3 expands, a certain gap is also opened at the position near the end. At this time, pass the curing lamp holder 2 through the towing frame 1 and the connecting frame 4 and introduce it into the repair hose 3, and temporarily store it at the position of the connecting frame 4 and near the end of the repair hose 3;

[0036] S4. Sealing of the end of the repair hose 3. A plurality of telescopic rods 10 slide outwards relative to the towing frame 1 until they adapt to the inner diameter of the ferrule 11. Then, the ferrule 11 is movably connected to the plurality of telescopic rods 10 outside the towing frame 1. Use the power assembly to drive the towing frame 1 to move relative to the connecting frame 4, drive the ferrule 11 into the end of the repaired hose 3 after it is expanded, the repair hose 3 enters between the outer wall of the ferrule 11 and the tie strap 15, and use the bundling shaft 14 to rotate to tighten one end of the tie strap 15, thereby bundling and fixing the end of the repair hose 3 outside the ferrule 11 to achieve the sealing of one end of the repair hose 3. The other end of the repair hose 3 is sealed by using the existing ferrule 11 structure;

[0037] S5. Inflation and light curing. Ventilate the repair hose 3 through the air inlet pipe 12 on the ferrule 11 to make the whole repair hose 3 expand and completely fit against the inner wall of the pipeline. At this time, drive the drive belt 9 to drive the curing lamp holder 2 to move until it enters the completely expanded repair hose 3. Use the preset towing rope to pull the curing lamp holder 2 to move in the repair hose 3 until the whole repair hose 3 is completely cured and fits against the inner wall of the pipeline to complete the repair of the damaged pipeline;

[0038] S6. Disassembly of the ferrule 11. After curing, reverse the rotation of the bundling shaft 14 to loosen the tie strap 15, then the ferrule 11 is separated from the repair hose 3. Then, remove the ferrule 11 from the towing frame 1. After the annular airbag 8 is deflated, the connecting frame 4 is separated from the repair hose 3. Take out the towing frame 1 and the connecting frame 4 from the pipeline and cut off the excess end of the repair hose 3. Reconnect the pipeline in the construction pit and backfill the construction pit.

[0039] Preferably, refer to Figure 6, an arc-shaped plate 16 is fixed to the end of the telescopic rod 10 by welding or bolts. The centers of the multiple arc-shaped plates 16 coincide, and the diameters of the multiple arc-shaped plates 16 are the same and are all located within the same circle. The multiple arc-shaped plates 16 are all threadedly connected to the inner wall of the ferrule 11. Specifically, external threads are provided on the arc-shaped plate 16, and internal threads are provided on the inner wall of the ferrule 11. The unclosed circular structure formed by the multiple arc-shaped plates 16 is threadedly connected to the inner wall of the ferrule 11, making the connection and separation between the ferrule 11 and the traction frame 1 more convenient and efficient, and the connected structure more firm.

[0040] Preferably, a plurality of fixing sleeves 17 are fixed to the side surface of the traction frame 1 by welding or bolts. The telescopic rod 10 is slidably connected within the fixing sleeve 17. The fixing sleeve 17 provides guidance and limitation for the sliding of the telescopic rod 10, making the structure of the telescopic rod 10 more stable after movement. An expansion member 18 for driving the telescopic rod 10 to slide is provided within the fixing sleeve 17. Specifically, the expansion member 18 can be a cylinder or an electric cylinder, which is fixed inside the fixing sleeve 17 by welding or bolts, and the movable end is fixed to the telescopic rod 10 by welding or bolts, thereby realizing the synchronous sliding movement of the multiple telescopic rods 10, simplifying the steps of manual operation, and improving the efficiency and convenience of installing the ferrule 11.

[0041] Preferably, referring to Figure 7 and Figure 8 , a driving roller 19 and a driven roller 20 are symmetrically rotatably connected to the side wall of the connecting frame 4 through bearings. The driving roller 19 is driven to rotate by a motor. The driving belt 9 is wound around the driving roller 19 and the driven roller 20, so that the driving belt 9 rotates in the horizontal plane. A plurality of dial rods 21 are fixed to the driving belt 9 by bolts. A plurality of support rods 22 are fixed to the side surface of the curing lamp holder 2 by welding or bolts. The end of the support rod 22 is rotatably connected to a roller 23 through a bearing, so that the curing lamp holder 2 can move within the pipeline under the action of the multiple rollers 23. The dial rod 21 is in contact with the support rod 22. Such a structure drives the multiple dial rods 21 to move horizontally when the driving belts 9 on both sides rotate, and drives the curing lamp holder 2 in contact with the dial rod 21 to move on the connecting frame 4 under the action of the roller 23 until it completely enters the expanded repair hose 3, making the introduction process of the curing lamp holder 2 smoother. With the pulling of the traction rope, the convenience and smoothness of introducing the curing lamp holder 2 are further improved.

[0042] Preferably, a through hole 24 is provided in the bundling shaft 14. One end of the cable tie 15 passes through the through hole 24 and then winds around the bundling shaft 14. A bundling motor 25 for driving the bundling shaft 14 to rotate is provided on the fixed block 13. Specifically, the output shaft of the bundling motor 25 is connected to one end of the bundling shaft 14 by welding or bolts. The bundling motor 25 is used to drive the bundling shaft 14 to rotate, so that one end of the cable tie 15 passes through the through hole 24 and gradually winds around the bundling shaft 14, realizing the automatic bundling and fixing of the cable tie 15, reducing the difficulty of manual operation, and improving the convenience and firmness of fixing the tie head 11.

[0043] Preferably, referring to Figure 5 , a ratchet wheel 26 is fixed to the bundling shaft 14 by welding or bolts. A ratchet pawl 27 for cooperating with the ratchet wheel 26 is provided on the fixed block 13. Specifically, the ratchet pawl 27 is rotatably connected to the fixed block 13 by a pin shaft. A torsion spring is provided between the ratchet pawl 27 and the fixed block 13. The end of the ratchet pawl 27 meshes with the ratchet wheel 26, so that the bundling shaft 14 can only rotate in one direction, ensuring that the cable tie 15 will not loosen after being fixed by the bundling shaft 14. During disassembly, only need to manually move the ratchet pawl 27 to disengage it from the ratchet wheel 26, improving the firmness of fixing the repair hose 3 and the tie head 11.

[0044] Preferably, the longitudinal sections of the traction frame 1 and the connecting frame 4 are both in a shape of a Chinese character 'hui'. The curing lamp frame 2 passes through the inside of the 'hui'-shaped structure and then is introduced into the pipeline. The connecting frame 4 is slidably connected inside the traction frame 1. Such a structure provides space for the introduction of the curing lamp frame 2 and makes the sliding structure of the connecting frame 4 relative to the traction frame 1 more stable, thus ensuring the firmness of the cooperation between the connecting frame 4, the traction frame 1 and the pipeline, and improving the light curing effect of the repair hose 3.

[0045] Preferably, referring to Figure 3 and Figure 4 , the power assembly includes power motors 28 symmetrically fixed to the traction frame 1 by welding or bolts. A screw rod 29 is fixed to the output shaft of the power motor 28 by welding or bolts. Through holes 30 are symmetrically provided in the traction frame 1. Sliders 31 are symmetrically fixed to the connecting frame 4 by welding or bolts. The sliders 31 pass through the through holes 30 and are slidably connected thereto. The screw rod 29 passes through the sliders 31 and is threadedly connected thereto. Such a structure can drive the screw rod 29 to rotate when the power motor 28 is started, so that the sliders 31 threadedly connected to the screw rod 29 drive the connecting frame 4 to slide along the through holes 30, making the relative movement between the connecting frame 4 and the traction frame 1 smoother and more stable. When they move relative to each other, they can be fully aligned, making the docking between the tie head 11 and the repair hose 3 more accurate.

[0046] Preferably, a plurality of jacks 32 are provided on the connecting sleeve 6. The jacks 32 are recessed downward from the connecting sleeve 6. The connecting blocks 7 are movably inserted into the jacks 32. With such a structure, when the repair hose 3 is connected to the connecting sleeve 6, the connecting blocks 7 at multiple positions thereon are movably inserted and fixed in the jacks 32, making the overall cooperation between the repair hose 3 and various positions on the side of the connecting sleeve 6 more stable, and improving the smoothness and efficiency of inserting the repair hose 3 into the pipeline.

[0047] Preferably, the connecting block 7 is in contact with one side of the annular airbag 8 after inflation. With such a structure, when the annular airbag 8 expands and fixes the repair hose 3 on the inner wall of the pipeline by using pressure, the contact setting between the connecting block 7 and one side of the annular airbag 8 restricts the relative position between the repair hose 3 and the annular airbag 8, making it difficult for the repair hose 3 to move toward the inside of the pipeline after being pulled, maintaining a tight connection with the inner wall of the pipeline during subsequent inflation, improving the tightness of fitting with the inner wall of the pipeline, and further improving the quality of pipeline repair.

[0048] Working principle: The structure of the present invention includes a traction frame 1 and a curing lamp frame 2. A connecting frame 4 is slidably connected to one side of the traction frame 1. A connecting sleeve 6 is provided on the connecting frame 4. A plurality of connecting blocks 7 used in conjunction with the connecting sleeve 6 are provided on the side wall of the repair hose 3. Such a structure makes it unnecessary to fold one end of the repair hose 3 during the introduction process, and it is unnecessary to unfold it again after reaching the other end of the pipeline. It is only necessary to sleeve the end of the repair hose 3 on the connecting sleeve 6 in advance and fix it with the connecting block 7. Then, the traction frame 1 is pulled by a traction rope to move along the inside of the pipeline under the action of the walking wheel 5, so that the introduction of the repair hose 3 is smoother, and the subsequent operation of the end of the repair hose 3 in the construction pit after the introduction is easier. The invention is convenient and simplifies the operation steps, reduces the construction intensity, and improves the convenience of the repair hose 3 construction; an annular air bag 8 is provided on the outside of the connecting sleeve 6, and the annular air bag 8 is expanded so that the end of the repair hose 3 is stretched and fits on the inner wall of the pipeline, and the curing lamp holder 2 passes through the traction frame 1 and the connecting frame 4 and enters the interior of the repair hose 3. The interior of the connecting frame 4 is symmetrically provided with a driving belt 9 for driving the curing lamp holder 2 to move. When the curing lamp holder 2 is introduced into the pipeline, the annular air bag 8 is inflated to expand it, so that the end of the repair hose 3 is stretched, and at this time, there is enough space at the end of the pipeline to introduce the curing lamp holder 2. At this time, the curing lamp holder 2 is passed through the traction frame 1 and the connecting frame 4 and introduced into The end of the pipeline, after the subsequent repair hose 3 is expanded as a whole, it is only necessary to use the driving belt 9 to completely send the curing lamp holder 2 into the interior of the pipeline, and there is no need to inflate the entire repair hose 3 and then introduce it into the curing lamp holder 2, which saves the step of closing and inflating the end of the repair hose 3 and then opening it to introduce the curing lamp holder 2. After the subsequent connection of the tying head 11, the light curing operation can be directly performed, which further improves the efficiency of pipeline repair; a plurality of telescopic rods 10 are slidably connected to the side of the traction frame 1, and the telescopic rods 10 are movably connected to the inner wall of the tying head 11. A fixed block 13 is provided on the outer wall of the tying head 11, and a tying shaft 14 for tying the tying tie 15 is rotatably connected to the fixed block 13. Such a structure is encircled at the end of the repair hose 3 After the airbag 8 is expanded, the power component is used to drive the traction frame 1 to slide toward the pipeline, so that the tying head 11 connected to the traction frame 1 enters the expanded end of the repair hose 3, and then the tying shaft 14 is rotated to tighten the tie band 15, so that the repair hose 3 is fixed on the tying head 11. Thereafter, ventilation is directed toward the air inlet pipe 12 on the tying head 11 to make the repair hose 3 expand and fit to the inner wall of the pipeline. The light curing operation of the repair hose 3 can be achieved by moving the curing lamp stand 2 driven by the traction rope, making it more convenient to close the end of the repair hose 3 and introduce the curing lamp stand 2 in the construction pit, without the need for cooperation of multiple people, which greatly simplifies the operation steps and improves the efficiency and convenience of the entire pipeline repair.

Claims

1. A traction repair device for trenchless pipelines, comprising a traction frame (1) and a curing lamp frame (2). A connecting frame (4) for connecting a repair hose (3) is slidably connected to one side of the traction frame (1). A power assembly for driving the sliding of the connecting frame (4) is provided on the traction frame (1). A plurality of traveling wheels (5) capable of moving inside the pipeline are provided at the bottom of the traction frame (1). The curing lamp frame (2) passes through the traction frame (1) and the connecting frame (4) and then enters the inside of the repair hose (3), characterized in that: A connecting sleeve (6) is provided on one side of the connecting frame (4); a plurality of connecting blocks (7) used in conjunction with the connecting sleeve (6) are provided on the inner wall of the repair hose (3); an annular air bag (8) is provided on the outer sleeve of the connecting sleeve (6); the annular air bag (8) expands so that the end of the repair hose (3) is stretched and attached to the inner wall of the pipeline; a driving belt (9) for driving the curing lamp frame (2) to move is symmetrically provided inside the connecting frame (4); a plurality of telescopic rods (10) are slidably connected to the side of the traction frame (1); a tying head (11) is provided on the outer side of the traction frame (1); The end of the repair hose (3) is expanded and sleeved on the outside of the tying head (11), the ends of the plurality of telescopic rods (10) are movably connected to the inner wall of the tying head (11), the tying head (11) is connected with an air inlet pipe (12), a fixing block (13) is provided on the outer wall of the tying head (11), a tying shaft (14) is rotatably connected to the fixing block (13), a tying strap (15) for fixing the repair hose (3) on the outside of the tying head (11) is provided on the fixing block (13), and one end of the tying strap (15) is wound around the outer wall of the repair hose (3) and then wrapped around the tying shaft (14).

2. The traction repair device for trenchless pipelines according to claim 1, characterized in that: An arc-shaped plate (16) is provided at the end of the telescopic rod (10), the centers of the multiple arc-shaped plates (16) coincide with each other, and the multiple arc-shaped plates (16) are all threadedly connected to the inner wall of the tying head (11).

3. The traction repair device for trenchless pipelines according to claim 2, characterized in that: A plurality of fixing sleeves (17) are provided on the side of the traction frame (1), the telescopic rod (10) is slidably connected in the fixing sleeve (17), and a telescopic member (18) for driving the telescopic rod (10) to slide is provided in the fixing sleeve (17).

4. The traction repair device for trenchless pipelines according to claim 1, characterized in that: A driving roller (19) and a driven roller (20) are symmetrically rotatably connected on the side wall of the connecting frame (4); the driving belt (9) is wound around the outside of the driving roller (19) and the driven roller (20); a plurality of levers (21) are provided on the driving belt (9); a plurality of support rods (22) are provided on the side of the curing lamp frame (2); rollers (23) are rotatably connected at the ends of the support rods (22); and the levers (21) are in contact with the support rods (22).

5. The traction repair device for trenchless pipelines according to claim 1, characterized in that: The bundling shaft (14) is provided with a through hole (24), one end of the strap (15) passes through the through hole (24) and is wound around the bundling shaft (14), and the fixed block (13) is provided with a bundling motor (25) for driving the bundling shaft (14) to rotate.

6. The traction repair device for trenchless pipelines according to claim 5, characterized in that: The tying shaft (14) is provided with a ratchet (26), and the fixing block (13) is provided with a ratchet pawl (27) used in conjunction with the ratchet (26).

7. The traction repair device for trenchless pipelines according to claim 1, wherein: The longitudinal sections of the traction frame (1) and the connecting frame (4) are both in the shape of a Chinese character “Yu”, and the connecting frame (4) is slidably connected inside the traction frame (1).

8. The traction repair device for trenchless pipelines according to claim 7, characterized in that: The power assembly includes power motors (28) symmetrically arranged on the traction frame (1). A screw rod (29) is provided on the output shaft of the power motor (28). Through holes (30) are symmetrically provided on the traction frame (1). Sliders (31) are symmetrically provided on the connecting frame (4). The sliders (31) pass through the through holes (30) and are slidably connected thereto. The screw rod (29) passes through the sliders (31) and is threadedly connected thereto.

9. The traction repair device for trenchless pipelines according to claim 1, wherein: A plurality of jacks (32) are provided on the connecting sleeve (6). The connecting block (7) is movably inserted into the jacks (32).

10. The traction repair device for trenchless pipelines according to claim 1, characterized in that: The connecting block (7) is in contact with one side of the inflated annular airbag (8).

Images