Electric power pipeline welding device
By designing a welding device for power pipelines, a rotating ring and a power-driven mechanism are used to clean and scan the pipe wall, achieving efficient cleaning and precise welding of power pipelines. This solves the problem of welding and maintenance of power pipelines in existing technologies and ensures the safety and integrity of power transmission.
Patent Information
- Application Number
- CN202512041992.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-31
- Publication Date
- 2026-02-13
AI Technical Summary
Existing power pipeline welding equipment cannot effectively weld and repair buried pipelines, and buried pipelines are susceptible to soil adhesion and water accumulation, leading to corrosion and interference with welding equipment.
A welding device for power pipelines is designed, comprising a fixed support shell, a rotating ring, a rotating actuator, a pipe wall cleaner, a power drive mechanism, and a welding mechanism. The rotating ring drives the pipe wall cleaner to clean the pipe wall, a vision scanner scans the damaged location, the power drive mechanism travels along the inner wall of the pipe, and the welding mechanism performs precise welding.
It enables efficient cleaning and precise welding of power pipelines, ensuring the integrity and safe transmission of power pipelines, adapting to pipelines of different diameters, and isolating water accumulation areas for repair.
Smart Images

Figure CN121514746A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of power facility maintenance, in particular to a power pipeline welding device. BACKGROUND
[0002] As an important part of power transmission and distribution system, the power pipeline bears the key task of transporting electric energy, protecting cables and maintaining stable operation of the system. The power pipeline is usually made of carbon steel, stainless steel or alloy steel, which is exposed to moisture, soil or chemical medium for a long time, and is prone to electrochemical corrosion, stress corrosion cracking (SCC) or uniform corrosion, resulting in pipe wall thinning, perforation or leakage.
[0003] During use, the buried pipeline is prone to soil adhesion and water accumulation inside. These problems not only cause corrosion of the power pipeline, but also interfere with the maintenance of the welding equipment. Moreover, due to the particularity of the power line erected in the buried pipeline, the existing power pipeline welding mechanism cannot effectively weld and maintain the damaged power pipeline.
[0004] Therefore, it is necessary to provide a power pipeline welding device to solve the above problems. SUMMARY
[0005] To achieve the above purpose, the present application provides the following technical scheme: a power pipeline welding device, comprising: a fixed support shell, a rotating ring, a rotating driver, a pipe wall cleaner, a power drive mechanism and a welding mechanism, the rotating ring is rotatably assembled on one side of the fixed support shell, the rotating ring is engaged with two rotating drivers, and the two rotating drivers are mirror image arranged on the outer side of the fixed support shell; a power drive mechanism fixedly embedded in the fixed support shell, and the power drive mechanism is fixedly assembled with a welding mechanism away from the rotating ring side; The power drive mechanism comprises a fixed plate, the fixed plate is fixedly assembled on the inner side wall of the fixed support shell, and three support frames are circumferentially arranged on the side of the fixed plate close to the rotating ring, each support frame is rotatably assembled with a driven support assembly and a driving assembly, and the driving assembly is connected with the output shaft of a driving motor, and the driving motor is fixedly assembled on the support frame; The fixed plate is also fixedly assembled with two hydraulic cylinders on the side close to the rotating ring, the two hydraulic cylinders are synchronously arranged, and the other end is fixedly assembled with a driving adjustment plate, the other side of the driving adjustment plate is rotatably assembled with a driving assembly, and the other side of the driven support assembly is fixedly arranged on the fixed support shell.
[0006] Further, as a preferred, the pipe wall cleaner is provided with a plurality of adjustable angle cleaning brushes and visual scanners.
[0007] Further, as a preference, the fixed support shell, the rotating ring, the rotating driver, the pipe wall cleaner, the power driving mechanism and the welding mechanism are coaxially arranged, and each is provided with a power line gap.
[0008] Further, as a preference, the driven support assembly comprises a first connecting rod, one end of which is rotatably arranged on the support frame, and the other end is rotatably arranged with a driven wheel, and a radius adjusting bolt is slidably arranged in the middle of the first connecting rod, the radius adjusting bolt is bolted on a fixed block, the fixed block is fixedly arranged on the fixed support shell, and a compression spring is arranged between the fixed block and the first connecting rod, and the compression spring is sleeved on the radius adjusting bolt.
[0009] Further, as a preference, the driven support assembly comprises a first connecting rod, one end of which is rotatably arranged on the support frame, and the other end is rotatably arranged with a driven wheel, and a radius adjusting bolt is slidably arranged in the middle of the first connecting rod, the radius adjusting bolt is bolted on a fixed block, the fixed block is fixedly arranged on the fixed support shell, and a compression spring is arranged between the fixed block and the first connecting rod, and the compression spring is sleeved on the radius adjusting bolt. A second connecting rod, one end of which is rotatably arranged on the support frame, and the other end is rotatably arranged with a driven wheel, and a radius adjusting bolt is slidably arranged in the middle of the first connecting rod, the radius adjusting bolt is bolted on a fixed block, the fixed block is fixedly arranged on the fixed support shell, and a compression spring is arranged between the fixed block and the first connecting rod, and the compression spring is sleeved on the radius adjusting bolt.
[0010] Further, as a preference, the welding mechanism comprises a gap rotating device, which is fixedly assembled on the side of the power driving mechanism away from the rotating ring, seven first sliding tracks are fixedly assembled on the rotating surface of the gap rotating device at equal angles, two water accumulation isolation assemblies are slidably arranged on the seven first sliding tracks, and a bearing assembly is slidably arranged on each of the first sliding tracks, and the bearing assembly is arranged between the two water accumulation isolation assemblies.
[0011] Further, as a preference, the bearing assembly comprises a first sliding block, which is slidably arranged on the first sliding track, a flipper is fixedly assembled on the other side of the first sliding track, a second sliding track is fixedly assembled on the flipper surface of the flipper, a second sliding block is slidably arranged on the second sliding track, and a component fixer is fixedly assembled on the second sliding block.
[0012] Further, as a preference, seven component fixers are respectively fixedly assembled with polishers, polishers, dryers, dryers, water pumps, welders and slag cleaners.
[0013] Further, as a preference, the first sliding track and the second sliding track are of a spliced structure.
[0014] Further, as preferred, the water accumulation isolation assembly comprises seven third sliding blocks, which are slidingly arranged on the seven first sliding rails respectively, and the other side of the third sliding blocks is fixedly provided with a fixed ring rail, the other side of the fixed ring rail is fixedly provided with a pneumatic telescopic group, and the other end of the pneumatic telescopic group is fixedly provided with a plugging air bag.
[0015] Compared with the prior art, the power pipeline welding device has the following beneficial effects: In the application, the rotating ring can drive the pipe wall cleaner to clean the pipe wall of the power pipeline under the driving of the rotating driver during the operation of the device, the pipe wall cleaner can remove the attached sundries on the pipe wall when cleaning the pipe wall of the power pipeline, so that the damage position is better exposed, and the subsequent welding work is facilitated, the adjustable angle cleaning brush arranged thereon can change the cleaning radius of the pipe wall cleaner by adjusting, so that it is adapted to power pipelines of different diameters, and the visual scanner arranged thereon can scan the cleaned inner wall of the power pipeline, so that the damaged position is found out, and the subsequent accurate welding is facilitated.
[0016] In the application, the power driving mechanism is provided with a device that can be fixed inside the power pipeline and can drive the device to travel along the inner wall of the power pipeline, so that the damage of the inner wall of the power pipeline can be effectively patrolled, and the three driving components and three driven support components of the power driving mechanism can effectively adjust the support radius of the power driving mechanism through the third connecting rod and the radius adjusting bolt, so that the device can be adapted to power pipelines of different diameters, and the practicability of the device is increased In the application, the welding mechanism can further clean the damaged position patrolled by the pipe wall cleaner, and then select an appropriate way to weld it, further guaranteeing the integrity and effectiveness of the power pipeline, protecting the safe transmission of power, and the water accumulation isolation assembly thereon can effectively isolate the damaged position, so that the device can weld and repair the power pipeline with water accumulation, further guaranteeing the safe transmission of power. BRIEF DESCRIPTION OF DRAWINGS
[0017] Fig. 1 It is a structural schematic view of the power pipeline welding device; Fig. 2 It is a structural schematic view of the power driving mechanism; Fig. 3 It is a structural schematic view of the driven support component and the driving component; Fig. 4 It is a structural schematic view of the welding mechanism; Fig. 5 It is a structural schematic view of the bearing assembly; Fig. 6Structure diagram of water accumulation isolation assembly In the figure: 1, fixed support shell; 2, rotating ring; 3, rotating driver; 4, pipe wall cleaner; 5, power driving mechanism; 6, welding mechanism; 7, power line gap; 51, fixed plate; 52, support frame; 53, driven support assembly; 54, driving driving assembly; 55, driving motor; 56, hydraulic cylinder; 57, driving adjustment plate; 531, first connecting rod; 532, radius adjustment bolt; 533, fixed block; 534, compression spring; 535, driven wheel; 541, second connecting rod; 542, driving wheel; 543, synchronous belt; 544, third connecting rod; 61, gap rotating device; 62, first sliding rail; 63, bearing assembly; 64, water accumulation isolation assembly; 631, first sliding block; 632, flipper; 633, second sliding rail; 634, second sliding block; 635, component fixer; 641, third sliding block; 642, fixed ring rail; 643, pneumatic telescopic group; 644, plugging air bag. DETAILED DESCRIPTION
[0018] Please refer to Figs. 1-6 The present application provides a power pipeline welding device, comprising: fixed support shell 1, rotating ring 2, rotating driver 3, pipe wall cleaner 4, power driving mechanism 5 and welding mechanism 6, the rotating ring 2 is rotatably assembled on one side of the fixed support shell 1, the rotating ring 2 is engaged with two rotating drivers 3, and the two rotating drivers 3 are mirror image arranged on the outer side of the fixed support shell 1; Power driving mechanism 5, fixedly embedded in the fixed support shell 1, and the power driving mechanism 5 is fixedly assembled with the welding mechanism 6 away from the side of the rotating ring 2; The power driving mechanism 5 comprises a fixed plate 51, the fixed plate 51 is fixedly assembled on the inner side wall of the fixed support shell 1, and the fixed plate 51 is provided with three support frames 52 on the side surface near the rotating ring 2, each of the support frames 52 is rotatably assembled with a driven support assembly 53 and a driving driving assembly 54, and the driving driving assembly 54 is connected with the output shaft of a driving motor 55, and the driving motor 55 is fixedly assembled on the support frame 52; The fixed plate 51 is also fixedly assembled with two hydraulic cylinders 56 on the side surface near the rotating ring 2, the two hydraulic cylinders 56 are synchronously arranged, and the other end is fixedly assembled with a driving adjustment plate 57, the driving adjustment plate 57 is rotatably assembled with the driving driving assembly 54 on the other side, and the driven support assembly 53 is fixedly arranged on the fixed support shell 1 on the other side; As a preferred embodiment, the rotating ring 2 can drive the pipe wall cleaner 4 to clean the power pipeline wall under the driving of the rotating driver 3 during the operation of the device, and the pipe wall cleaner 4 can remove the debris attached to the pipe wall when cleaning the power pipeline wall, so as to better expose the damage position and facilitate the subsequent welding work. The power driving mechanism 5 can fix the device inside the power pipeline and can drive the device to travel along the inner wall of the power pipeline, so as to effectively patrol the damage of the inner wall of the power pipeline. The welding mechanism 6 can further clean the damage position found by the pipe wall cleaner 4, and then select the appropriate way to weld, further guarantee the integrity and effectiveness of the power pipeline, and protect the safe transmission of power. When implemented, the three active driving assemblies 54 and the three driven supporting assemblies 53 can be in contact with the inner wall of the power pipeline, and the device can be fixed inside the power pipeline through the six supporting points. The active driving assembly 54 can also drive the device to travel along the inner wall of the power pipeline under the driving of the driving motor 55 while supporting. The hydraulic cylinder 56 can change the position of the driving adjustment plate 57 by extension and retraction, so as to change the position between the three supporting points of the three active driving assemblies 54, thereby adapting to power pipelines of different diameters, and further increasing the practicability of the device.
[0019] Further, the pipe wall cleaner 4 is provided with a plurality of adjustable angle cleaning brushes and a visual scanner. As a preferred embodiment, the adjustable angle cleaning brush can change the cleaning radius of the pipe wall cleaner 4 by adjusting, so as to adapt to power pipelines of different diameters. The visual scanner can scan the inner wall of the cleaned power pipeline to find the damage position, thereby facilitating the subsequent precise welding.
[0020] Further, the fixed support shell 1, the rotating ring 2, the rotating driver 3, the pipe wall cleaner 4, the power driving mechanism 5 and the welding mechanism 6 are coaxially arranged, and the power line gap 7 is formed. As a preferred embodiment, the internal structure and environment of some power pipelines are relatively complex. In order to prevent the wires from being damaged due to friction with the inner wall of the power pipeline during use, some supporting structures are usually used to make the wires empty. The power line gap 7 can make the device more quickly set on the wires and placed inside the power pipeline. The power line gap 7 can also avoid the obstruction of the supporting structure during the operation of the device, thereby more efficiently performing the patrol and welding work of the power pipeline.
[0021] Further, the driven support assembly 53 comprises a first connecting rod 531, one end of which is rotatably arranged on the support frame 52, and the other end of which is rotatably arranged with a driven wheel 535, and a radius adjusting bolt 532 is slidably arranged in the middle of the first connecting rod 531, the radius adjusting bolt 532 is bolted on a fixed block 533, the fixed block 533 is fixedly arranged on the fixed support shell 1, and a compression spring 534 is arranged between the fixed block 533 and the first connecting rod 531, the compression spring 534 is sleeved on the radius adjusting bolt 532; As a preferred embodiment, under the action of the compression spring 534, the driven wheel 535 can always be tangent to the inner wall of the power pipeline, thereby supporting the device, and in the actual working process, by adjusting the engagement depth of the radius adjusting bolt 532 on the fixed block 533, the distance between the fixed block 533 and the first connecting rod 531 can be changed, thereby effectively adjusting the supportable radius of the driven support assembly 53, so that the device can be adapted to power pipelines of different diameters, increasing the practicability of the device.
[0022] Further, the driven support assembly 53 comprises a first connecting rod 531, one end of which is rotatably arranged on the support frame 52, and the other end of which is rotatably arranged with a driven wheel 535, and a radius adjusting bolt 532 is slidably arranged in the middle of the first connecting rod 531, the radius adjusting bolt 532 is bolted on a fixed block 533, the fixed block 533 is fixedly arranged on the fixed support shell 1, and a compression spring 534 is arranged between the fixed block 533 and the first connecting rod 531, the compression spring 534 is sleeved on the radius adjusting bolt 532; The second connecting rod 541, one end of which is rotatably arranged on the support frame 52, and the other end of which is rotatably arranged with a driving wheel 542, and a synchronous belt 543 is arranged on the driving wheel 542, the other end of the synchronous belt 543 is fixedly assembled on the output shaft of the driving motor 55; The third connecting rod 544 is a bidirectional telescopic rod, and both ends thereof are rotatably arranged on the first connecting rod 531 and the driving adjusting plate 57, respectively; As a preferred embodiment, the driving motor 55 can drive the synchronous belt 543 to drive the driving wheel 542 to rotate, thereby driving the device to travel along the inner wall of the power pipeline, and by the extension and retraction of the hydraulic cylinder 56, the angle between the third connecting rod 544 and the second connecting rod 541 can be changed, thereby changing the distance between the driving wheel 542 and the device axis, and further adapting the device to power pipelines of different radii, while the bidirectional telescopic rod structure of the third connecting rod 544 can change the overall length of the third connecting rod 544, thereby changing the adjustment interval between the driving wheel 542 and the device axis, so that the device can be adapted to power pipelines of different diameters, increasing the practicability of the device.
[0023] Further, the welding mechanism 6 comprises a notch rotator 61, which is fixedly assembled on the side of the power driving mechanism 5 away from the rotating ring 2, seven first sliding rails 62 are fixedly assembled on the rotating surface of the notch rotator 61 at equal angles, two water accumulation isolation assemblies 64 are slidably arranged on the seven first sliding rails 62, and a bearing assembly 63 is slidably arranged on each first sliding rail 62, and the bearing assembly 63 is arranged between the two water accumulation isolation assemblies 64; As a preferred embodiment, the gap turner 61 can drive seven bearing assemblies 63 and the components thereon to rotate, so as to more accurately and efficiently complete the welding work at the damaged position. The bearing assembly 63 can be installed with appropriate components according to the actual needs inside the power pipeline, so as to more efficiently complete the welding work. The sliding on the first sliding rail 62 can more accurately find the damaged position, thereby more efficiently completing the welding work. The accumulated water isolation assembly 64 can effectively isolate the damaged position, thereby enabling the device to perform welding repair work on the power pipeline with accumulated water, further ensuring the safe transmission of power.
[0024] Further, the bearing assembly 63 comprises a first sliding block 631 slidingly arranged on the first sliding rail 62, and the first sliding rail 62 is fixedly assembled with a turnover device 632 on the other side. The turnover device 632 is fixedly assembled with a second sliding rail 633 on the turnover surface thereof. A second sliding block 634 is slidingly arranged on the second sliding rail 633, and a component fixer 635 is fixedly assembled on the second sliding block 634. As a preferred embodiment, the turnover device 632 can be turned up to 140°, so that the second sliding rail 633 is arranged perpendicularly to the first sliding rail 62. Thus, the components on the component fixer 635 can be better welded or prepared for welding. Meanwhile, the component fixer 635 can more accurately find the damaged position by sliding the second sliding block 634 on the second sliding rail 633, thereby performing welding work. Due to the diversity and complexity of the damaged position, the turnover device 632 can be turned to different angles according to actual conditions, thereby meeting the actual needs of different damaged positions.
[0025] Further, a grinder, a polisher, a wiper, a dryer, a water extractor, a welder, and a slag cleaner are respectively fixedly assembled on the seven component fixers 635. As a preferred embodiment, the cooperation of the seven components can complete the welding work at the damaged position of the power pipeline completely and efficiently. The water extractor can extract the accumulated water at the isolated position, thereby exposing the damaged position for welding. The dryer can dry the damaged position, thereby avoiding the influence of high humidity on welding. In actual work, the types of components can be appropriately adjusted according to actual conditions, thereby better completing the welding work at the damaged position.
[0026] Further, the first sliding rail 62 and the second sliding rail 633 are both of a spliced structure. As a preferred embodiment, the diversity exists inside the power pipeline, and the first sliding rail 62 and the second sliding rail 633 of the splicing structure can adjust the actual length of the two according to the actual situation of a certain power pipeline, so that the device is more suitable for the corresponding power pipeline, thereby more efficiently completing the welding work.
[0027] Further, the water accumulation isolation assembly 64 includes a third sliding block 641, which is provided with seven first sliding rails 62, and the other side of the seven third sliding blocks 641 is fixedly assembled with a fixed ring rail 642, the other side of the fixed ring rail 642 is fixedly assembled with a pneumatic telescopic group 643, and the other end of the pneumatic telescopic group 643 is fixedly assembled with a plugging air bag 644. As a preferred embodiment, when there is water accumulation inside the power pipeline, and the water accumulation position is damaged, two water accumulation isolation assemblies 64 will be distributed on both sides of the damaged position by sliding, and then the pneumatic telescopic group 643 will be rotated on the fixed ring rail 642, thereby driving the plugging air bag 644 to adjust the position and start the plugging air bag 644, and then under the pushing of the pneumatic telescopic group 643, the plugging air bag 644 is in contact with the power pipeline wall, thereby isolating the damaged position, and better completing the welding work.
[0028] In specific implementation, the following steps are included: according to the actual situation of the power pipeline, the components in the device are changed and adjusted, then the device is placed in the power pipeline through the power line gap 7, the power driving mechanism 5 can drive the device to move along the inner wall of the power pipeline while fixing the device inside the power pipeline, then the rotating ring 2 drives the pipe wall cleaner 4 to clean the pipe wall under the driving of the rotating driver 3, and the visual scanner on the pipe wall cleaner 4 scans the inner wall of the power pipeline, thereby finding the damaged position, after finding the damaged position, the welding mechanism 6 can further clean the damaged position found by the pipe wall cleaner 4, and then select an appropriate way to weld, thereby further ensuring the integrity and effectiveness of the power pipeline and protecting the safe transmission of power.
[0029] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.
Claims
1. Electrical pipeline welding equipment, including: The fixed support shell (1), rotating ring (2), rotating driver (3), pipe wall cleaner (4), power drive mechanism (5) and welding mechanism (6) are characterized in that the rotating ring (2) is rotatably assembled on one side of the fixed support shell (1), the rotating ring (2) engages with two rotating drivers (3), and the two rotating drivers (3) are mirror images disposed on the outer side of the fixed support shell (1); The power drive mechanism (5) is fixedly embedded in the fixed support shell (1), and a welding mechanism (6) is fixedly assembled on the side of the power drive mechanism (5) away from the rotating ring (2). The power drive mechanism (5) includes a fixed plate (51), which is fixedly mounted on the inner wall of the fixed support shell (1). Three support frames (52) are arranged circumferentially on the side of the fixed plate (51) near the rotating ring (2). Each support frame (52) is rotatably mounted with a driven support assembly (53) and an active drive assembly (54). The active drive assembly (54) is connected to the output shaft of a drive motor (55), which is fixedly mounted on the support frame (52). Two hydraulic cylinders (56) are also fixedly mounted on the side of the fixed plate (51) near the rotating ring (2). The two hydraulic cylinders (56) are set synchronously, and a drive adjustment plate (57) is fixedly mounted on the other end. An active drive assembly (54) is rotatably mounted on the other side of the drive adjustment plate (57), and the driven support assembly (53) is fixedly mounted on the fixed support shell (1) on the other side.
2. The power pipeline welding device according to claim 1, characterized in that: The pipe wall cleaner (4) is equipped with multiple adjustable-angle cleaning brushes and a vision scanner.
3. The power pipeline welding device according to claim 1, characterized in that: The fixed support shell (1), rotating ring (2), rotating driver (3), pipe wall cleaner (4), power drive mechanism (5) and welding mechanism (6) are all coaxially arranged and each has a power line notch (7).
4. The power pipeline welding device according to claim 1, characterized in that: The driven support assembly (53) includes a first connecting rod (531), one end of which is rotatably mounted on the support frame (52), and the other end is rotatably mounted with a driven wheel (535). A radius adjusting bolt (532) is slidably mounted in the middle of the first connecting rod (531). The radius adjusting bolt (532) is bolted on a fixing block (533). The fixing block (533) is fixedly mounted on a fixed support shell (1). A compression spring (534) is provided between the fixing block (533) and the first connecting rod (531). The compression spring (534) is sleeved on the radius adjusting bolt (532).
5. The power pipeline welding device according to claim 1, characterized in that: The active drive component (54) includes: The second link (541) has one end rotatably mounted on the support frame (52) and the other end rotatably mounted on the drive wheel (542), and the drive wheel (542) is equipped with a synchronous belt (543), the other end of which is fixedly mounted on the output shaft of the drive motor (55); The third link (544) is a two-way telescopic rod, with its two ends rotatably mounted on the first link (531) and the drive adjustment plate (57), respectively.
6. The power pipeline welding device according to claim 1, characterized in that: The welding mechanism (6) includes a notch rotator (61), which is fixedly mounted on the side of the power drive mechanism (5) away from the rotating ring (2). Seven first sliding rails (62) are fixedly mounted on the rotating surface of the notch rotator (61) at equal angles. Two water-absorbing isolation components (64) are slidably mounted on the seven first sliding rails (62), and a bearing component (63) is slidably mounted on each of the first sliding rails (62). The bearing component (63) is located between the two water-absorbing isolation components (64).
7. The power pipeline welding device according to claim 6, characterized in that: The supporting component (63) includes a first sliding block (631), which is slidably disposed on a first sliding track (62). A flipper (632) is fixedly mounted on the other side of the first sliding track (62). A second sliding track (633) is fixedly mounted on the flipping surface of the flipper (632). A second sliding block (634) is slidably disposed on the second sliding track (633). A component holder (635) is fixedly mounted on the second sliding block (634).
8. The power pipeline welding device according to claim 7, characterized in that: The seven component holders (635) are respectively fixedly equipped with a grinder, polisher, wiper, dryer, water pump, welder and slag cleaner.
9. The power pipeline welding device according to claim 7, characterized in that: Both the first sliding track (62) and the second sliding track (633) are spliced structures.
10. The power pipeline welding device according to claim 6, characterized in that: The water accumulation isolation component (64) includes a third sliding block (641), of which seven are provided and are slidably disposed on seven first sliding rails (62). A fixed ring rail (642) is fixedly assembled on the other side of the seven third sliding blocks (641), and a pneumatic telescopic assembly (643) is fixedly assembled on the other side of the fixed ring rail (642). A sealing airbag (644) is fixedly assembled at the other end of the pneumatic telescopic assembly (643).