High-altitude operation safety hanging point device for large-scale power grid safety guarantee main transformer

Abstract

The invention belongs to the technical field of high-altitude operation safety hanging point devices, and particularly relates to a large-scale power grid safety guarantee main transformer high-altitude operation safety hanging point device which comprises two fixed guide rail columns which are arranged in parallel, and movers are slidably mounted on the fixed guide rail columns. A U-shaped device is installed on one side of the mover in a hinged mode, and a rotating wheel is rotationally installed in the U-shaped device. And the two fixed wall plates are located on one sides of the two fixed guide rail columns correspondingly, it is ensured that the driving assembly can drive the two movers to move up and down on the two fixed guide rail columns correspondingly through the arranged driving assembly, personnel can conveniently fix one ends of the two steel wire ropes through the connectors on the ground, and meanwhile the two steel wire ropes can be fixed through the connectors. The height of the two steel wire ropes does not need to be manually adjusted, meanwhile, the two winding rollers can be driven to rotate forwards and backwards, the steel wire ropes can be conveniently wound on the winding rollers or the steel wire ropes on the winding rollers can be conveniently unwound, the device is convenient to operate by personnel, all manual operation is not needed, and time can be greatly saved.

Description

Technical Field

[0001] This invention belongs to the technical field of safety attachment devices for high-altitude operations, and particularly relates to a safety attachment device for high-altitude operations of a main transformer for large-scale power grid safety protection. Background Technology

[0002] The safety anchor point device for high-altitude operations in large-scale power grid safety assurance is a device used to connect fall protection equipment to fixed facilities and is a core component of the power grid high-altitude operation safety protection system. According to the national standard GB30862-2014 "Fall Protection Anchor Point Devices", the anchor point device must be able to withstand a static load of at least 15kN and have rust-proof and corrosion-proof properties; Currently, when inspecting wire ropes, personnel typically use auxiliary tools to attach themselves to the ropes for inspection and undergo extensive, repeated training to enable maintenance personnel to learn quickly. However, due to the varying heights of wire ropes in reality, personnel must manually attach the ropes for each training session, a process that is tedious and time-consuming. Therefore, we propose a large-scale power grid safety assurance device for high-altitude operations on main transformers. Summary of the Invention

[0003] The purpose of this invention is to provide a safety attachment device for high-altitude operations of main transformers in large-scale power grid security protection, so as to solve the problems mentioned in the background art.

[0004] In view of this, the present invention provides a large-scale power grid safety protection device for high-altitude operations of main transformers, comprising: Two fixed guide rail posts are arranged in parallel. A mover is slidably installed on each fixed guide rail post. A U-shaped device is hinged to one side of the mover, and a rotating wheel is rotatably installed inside the U-shaped device. Two wall panels are located on one side of two fixed guide rail columns. Two fixing blocks are fixedly installed on one side of each wall panel, and fixing ring one and fixing ring two are fixedly installed on the two fixing blocks. Two protective boxes are located below two fixed wall panels respectively. The top of each protective box has a discharge chute. A winding roller is rotatably installed inside the protective box. A steel wire rope is wound on the winding roller. One end of the steel wire rope passes through the discharge chute, a first fixed ring, and a second fixed ring and passes through a rotating wheel. One end of each steel wire rope is fixed by a connector. A drive assembly is located on two fixed guide rails and is used to drive two movers to move up and down on the two fixed guide rails respectively, and to drive two take-up rollers to rotate in opposite directions respectively.

[0005] In this technical solution, the drive assembly ensures that it can drive two moving parts to move up and down on two fixed guide rails, allowing personnel to easily fix one end of the two wire ropes via connectors from the ground. Simultaneously, it eliminates the need for manual adjustment of the wire rope height and drives two winding rollers to rotate in both directions, facilitating the winding of the wire ropes onto or off the rollers. This device is easy to operate, requiring no manual intervention and significantly saving time.

[0006] In the above technical solution, the driving component further includes: Two motors are fixedly installed at the bottom of two fixed guide rail columns. Each of the two moving parts has a threaded hole. A threaded rod is coaxially connected to the output shaft of each motor. One end of the threaded rod passes through the fixed guide rail column and the threaded hole. Two motor slots are respectively opened in two protective boxes. A second motor is fixedly installed in each motor slot, and the output shaft of the second motor is coaxially connected to the take-up roller.

[0007] In this technical solution, the output shaft of motor one can rotate in both the forward and reverse directions. When motor one is started, the output shaft of motor one will drive the threaded rod to rotate inside the fixed guide post. Under the action of the thread, the threaded rod can drive the mover to move up and down on the fixed guide post, thereby allowing the mover to drive the U-shaped device, the rotating wheel, and one end of the wire rope to move up and down, so that the height of one end of the wire rope can be quickly adjusted by the personnel, and it is also convenient for the personnel to conduct multiple training sessions at different heights of the wire rope. Meanwhile, the output shaft of motor two can rotate in both the forward and reverse directions, and can drive the winding roller to rotate, ensuring that the winding roller can automatically wind up or unwind the wire rope without manual operation, which is fast, convenient and saves time.

[0008] In the above technical solution, one end of the threaded rod is rotatably connected to the fixed guide post, and the other end of the threaded rod is threadedly connected to the threaded hole.

[0009] In this technical solution, it is ensured that one end of the threaded rod can rotate normally in the fixed guide post, and that under the action of the thread, the threaded rod can drive the mover to move up and down in the fixed guide post.

[0010] Furthermore, the above technical solution also includes: A revolving door is hinged to the exit of the protective box, and a handle is fixedly installed on one side of the revolving door.

[0011] In this technical solution, personnel hold the handle and rotate the revolving door to facilitate opening the protective box and winding the wire rope onto the take-up roller.

[0012] In the above technical solution, the connector further includes: Threaded post one and threaded post two are respectively fixedly installed at one end of two steel wire ropes. One end of threaded post one is fixedly installed with a plug, and one end of threaded post two has a plug hole with the plug located in the plug hole. Threaded sleeve is threadedly installed on threaded post two.

[0013] In this technical solution, after the insert post is inserted into the insertion hole, the threaded sleeve is rotated under the action of the thread. This allows the threaded sleeve to move from the threaded post two towards the threaded post one until one end of the threaded sleeve is located on the threaded post one. This ensures that the threaded post one and the threaded post two are fixed together, guaranteeing the structural stability of one end of the two wire ropes. This also facilitates personnel to inspect the wire ropes using auxiliary tools and to conduct long-term, repeated training.

[0014] In the above technical solution, the insertion post is further configured to be inserted into the insertion hole, the threaded sleeve is threadedly connected to the first threaded post, and the second threaded post has the same diameter as the first threaded post.

[0015] In this technical solution, it is ensured that the insert can be inserted into the socket, and the threaded sleeve can be fixed on the threaded insert one and the threaded insert two.

[0016] In the above technical solution, further, several through holes are provided on both sides of the fixed guide rail column and the threaded rod, two fixing slots are provided on the mover, a flat plate is provided on one side of the mover, and two rectangular inserts are provided on one side of the flat plate, with one end of the two rectangular inserts passing through the two fixing slots and two of the through holes respectively.

[0017] In this technical solution, after the mover rises to a suitable height on the fixed guide post, two rectangular posts need to be inserted into the corresponding fixed slots and through holes to ensure that the structure of the mover and the wire rope is stable when personnel inspect the wire rope by hanging it on the auxiliary tool.

[0018] In the above technical solution, the flat plate and the two rectangular posts are integrally formed, one end of the rectangular posts is inserted into the fixing groove and the through hole, and the cross-sectional dimensions of the rectangular posts, the fixing groove and the through hole are equal.

[0019] In this technical solution, the structure of the flat plate and the two rectangular posts is kept stable, and one end of the rectangular posts can be inserted into the fixing slot and the through hole.

[0020] In the above technical solution, the U-shaped device is further provided with a rectangular groove two, and the moving device is provided with a rectangular groove one that communicates with the rectangular groove two. A plug is inserted into the rectangular groove two, and one end of the plug extends into the rectangular groove one.

[0021] In this technical solution, when the U-shaped device is not in use, it can be flipped upwards to position itself on top of the fixed guide post, thus preventing the U-shaped device from getting in the way or taking up space. The insertion of the plug into rectangular slot two and rectangular slot one ensures the structural stability of the U-shaped device.

[0022] In the above technical solution, the cross-sectional dimensions of one end of the insert block are equal to the cross-sectional dimensions of one end of the rectangular groove one and the rectangular groove two.

[0023] In this technical solution, it is ensured that one end of the insert block can be seamlessly inserted into rectangular slot one and rectangular slot two.

[0024] The beneficial effects of this invention are: This large-scale power grid safety protection main transformer high-altitude operation safety attachment device enables the output shaft of motor two to drive the winding roller to rotate, allowing the winding roller to automatically release the wire rope. After the personnel insert the plug into the plug hole, under the action of the thread, the threaded sleeve is rotated, causing the threaded sleeve on threaded post two to move towards threaded post one, until one end of the threaded sleeve is located on threaded post one, ensuring that threaded post one and threaded post two are fixed together, ensuring the structural stability of one end of the two wire ropes; Subsequently, the output shaft of motor one drives the threaded rod to rotate within the fixed guide post. Under the action of the thread, the threaded rod can drive the mover to move up and down on the fixed guide post, thereby allowing the mover to drive the U-shaped device, the rotating wheel, and one end of the wire rope to move up and down. After ensuring that one end of the wire rope stops at a suitable height, two rectangular inserts are inserted into the corresponding fixed slots and through holes to ensure the structural stability of the mover and the wire rope. Then, inserts are inserted into rectangular slot two and rectangular slot one to ensure the structural stability of the U-shaped device. The above operations allow for rapid adjustment of the wire rope height and facilitate multiple training sessions at different wire rope heights. It also allows personnel to easily inspect the wire rope and conduct long-term, repeated manual training by attaching auxiliary tools to the wire rope, which is fast, convenient, and saves time. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is one of the structural schematic diagrams of the explosion in this invention; Figure 3 This is a cross-sectional view of the protective box in this invention; Figure 4 This is the second schematic diagram of the explosion structure in this invention; Figure 5 This is the third schematic diagram of the explosion structure in this invention; Figure 6 This is the fourth schematic diagram of the explosion structure in this invention.

[0026] The markings in the diagram are as follows: 1. Fixed guide rail post; 11. Through hole; 2. Movers; 21. Threaded hole; 22. Fixed groove; 23. Rectangular groove one; 24. Flat plate; 25. Rectangular insert post; 3. U-shaped device; 31. Rotating wheel; 32. Rectangular groove two; 33. Insert block; 4. Motor one; 41. Threaded rod; 5. Wall plate; 51. Fixed block; 52. Fixed ring one; 53. Fixed ring two; 6. Protective box; 61. Discharge chute; 62. Motor groove; 7. Rewinding roller; 71. Wire rope; 72. Threaded post one; 73. Insert post; 74. Threaded post two; 75. Insertion hole; 76. Threaded sleeve; 8. Motor two; 9. Revolving door; 91. Handle. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0028] Example 1: Please refer to Figure 1-6 As shown in the figure, this embodiment provides a large-scale power grid safety protection device for high-altitude operations of main transformers, including: Two fixed guide rail posts 1 are arranged in parallel. A mover 2 is slidably installed on the fixed guide rail post 1. A U-shaped device 3 is hinged to one side of the mover 2. A rotating wheel 31 is rotatably installed inside the U-shaped device 3. Two wall plates 5 are located on one side of two fixed guide rail columns 1 respectively. Two fixing blocks 51 are fixedly installed on one side of the wall plate 5. Fixing ring 1 52 and fixing ring 2 53 are fixedly installed on the two fixing blocks 51. Two protective boxes 6 are located below two solid wall panels 5 respectively. The top of the protective box 6 is provided with a discharge chute 61. A winding roller 7 is rotatably installed inside the protective box 6. A steel wire rope 71 is wound on the winding roller 7. One end of the steel wire rope 71 passes through the discharge chute 61, the first fixing ring 52 and the second fixing ring 53 and passes through the rotating wheel 31. One end of the two steel wire ropes 71 is fixed by a connector. The drive assembly is located on two fixed guide rails 1 and is used to drive two movers 2 to move up and down on the two fixed guide rails 1 respectively, and to drive two take-up rollers 7 to rotate in the forward and reverse directions respectively.

[0029] The drive assembly ensures that the two moving parts 2 can move up and down on the two fixed guide rails 1 respectively, allowing personnel to fix one end of the two wire ropes 71 on the ground via the connector. At the same time, there is no need to manually adjust the height of the two wire ropes 71. It can also drive the two winding rollers 7 to rotate in both directions, making it easy for the wire ropes 71 to be wound onto the winding rollers 7 or to be unwound from the winding rollers 7. The above device is easy to operate and does not require all manual operation, which can save a lot of time.

[0030] Example 2: This example provides a large-scale power grid safety protection device for high-altitude operations of main transformers. In addition to the technical solutions described in the above examples, it also has the following technical features, including a drive component comprising: Two motors 4 are fixedly installed at the bottom of two fixed guide rail columns 1. Threaded holes 21 are opened on both movers 2. A threaded rod 41 is coaxially connected to the output shaft of motor 4. One end of the threaded rod 41 passes through the fixed guide rail column 1 and the threaded hole 21. Two motor slots 62 are respectively opened in two protective boxes 6. A second motor 8 is fixedly installed in the motor slot 62. The output shaft of the second motor 8 is coaxially connected to the take-up roller 7.

[0031] Among them, the output shaft of motor 4 can rotate in both the forward and reverse directions. When motor 4 is started, the output shaft of motor 4 will drive the threaded rod 41 to rotate in the fixed guide post 1. Under the action of the thread, the threaded rod 41 can drive the mover 2 to move up and down on the fixed guide post 1, so that the mover 2 can drive the U-shaped device 3, the rotating wheel 31 and one end of the wire rope 71 to move up and down, so that the height of one end of the wire rope 71 can be quickly adjusted by the personnel, and it is also convenient for the personnel to conduct multiple training sessions at different heights of the wire rope 71. Meanwhile, the output shaft of motor 28 can rotate in both the forward and reverse directions, and the output shaft of motor 28 can drive the winding roller 7 to rotate, ensuring that the winding roller 7 can automatically wind up or unwind the wire rope 71 without manual operation, which is fast, convenient and saves time.

[0032] Example 3: This example provides a safety attachment point device for high-altitude operations of main transformers to ensure the safety of large-scale power grids. In addition to the technical solutions of the above examples, it also has the following technical features: one end of the threaded rod 41 is rotatably connected to the fixed guide rail column 1, and the other end of the threaded rod 41 is threadedly connected to the threaded hole 21.

[0033] Specifically, it is ensured that one end of the threaded rod 41 can rotate normally in the fixed guide post 1, and that under the action of the thread, the threaded rod 41 can drive the mover 2 to move up and down in the fixed guide post 1.

[0034] Example 4: This example provides a large-scale power grid safety protection device for high-altitude operations of main transformers. In addition to the technical solutions described in the above examples, it also has the following technical features: A revolving door 9 is hinged at the exit of the protective box 6, and a handle 91 is fixedly installed on one side of the revolving door 9.

[0035] In this process, the operator holds the handle 91 and rotates the revolving door 9, making it easy for the operator to open the protective box 6 and to wind the wire rope 71 onto the take-up roller 7.

[0036] Example 5: This example provides a large-scale power grid safety protection device for high-altitude operations of main transformers. In addition to the technical solutions described in the above examples, it also has the following technical features, including a connector comprising: Threaded post 1 72 and threaded post 2 74 are respectively fixedly installed at one end of two steel wire ropes 71. A plug post 73 is fixedly installed at one end of threaded post 1 72. A plug hole 75 is opened at one end of threaded post 2 74, and the plug post 73 is located in the plug hole 75. A threaded sleeve 76 is threadedly installed on threaded post 2 74.

[0037] After inserting the insertion post 73 into the insertion hole 75, the threaded sleeve 76 is rotated under the action of the thread, allowing it to move from the threaded post 74 towards the threaded post 72 until one end of the threaded sleeve 76 is positioned on the threaded post 72. This ensures that the threaded post 72 and the threaded post 74 are fixed together, guaranteeing the structural stability of one end of the two wire ropes 71. This allows personnel to easily inspect the wire ropes 71 using auxiliary tools and to conduct long-term, repeated training.

[0038] Example 6: This example provides a safety attachment device for high-altitude operations of main transformers to ensure the safety of large-scale power grids. In addition to the technical solutions of the above examples, it also has the following technical features: the insertion post 73 is inserted into the insertion hole 75, the threaded sleeve 76 is threadedly connected to the first threaded post 72, and the diameter of the second threaded post 74 is equal to that of the first threaded post 72.

[0039] Specifically, this ensures that the insert 73 can be inserted into the socket 75, while the threaded sleeve 76 can be fixed on the threaded insert 72 and the threaded insert 74.

[0040] Example 7: This example provides a safety attachment device for high-altitude operations of main transformers to ensure the safety of large-scale power grids. In addition to the technical solutions of the above examples, it also has the following technical features: several through holes 11 are provided on both sides of the threaded rod 41 on the fixed guide rail column 1; two fixed slots 22 are provided on the mover 2; a flat plate 24 is provided on one side of the mover 2; two rectangular inserts 25 are provided on one side of the flat plate 24; and one end of the two rectangular inserts 25 passes through the two fixed slots 22 and two of the through holes 11 respectively.

[0041] When the mover 2 rises to a suitable height on the fixed guide post 1, two rectangular inserts 25 need to be inserted into the corresponding fixed slots 22 and through holes 11 to ensure that the structure of the mover 2 and the wire rope 71 is stable when personnel inspect the wire rope 71 by hanging it on an auxiliary tool.

[0042] Example 8: This example provides a safety attachment device for high-altitude operations of main transformers to ensure the safety of large-scale power grids. In addition to the technical solutions of the above examples, it also has the following technical features: the flat plate 24 and the two rectangular inserts 25 are integrally formed. One end of the rectangular insert 25 is inserted into the fixing groove 22 and the through hole 11. The cross-sectional dimensions of the rectangular insert 25, the fixing groove 22 and the through hole 11 are equal.

[0043] In this process, the structure of the plate 24 and the two rectangular posts 25 is kept stable, and one end of the rectangular post 25 is inserted into the fixing groove 22 and the through hole 11.

[0044] Example 9: This example provides a large-scale power grid safety protection device for high-altitude operations of main transformers. In addition to the technical solutions of the above examples, it also has the following technical features: a rectangular groove 2 32 is provided on the U-shaped device 3, and a rectangular groove 1 23 connected to the rectangular groove 2 32 is provided on the mover 2. A plug 33 is inserted into the rectangular groove 2 32, and one end of the plug 33 extends into the rectangular groove 1 23.

[0045] Specifically, when the U-shaped device 3 is not in use, it can be flipped upwards so that the U-shaped device 3 is located on top of the fixed guide post 1, so as to avoid the U-shaped device 3 getting in the way or taking up space. The insertion block 33 is inserted into the rectangular groove 22 and the rectangular groove 123 to ensure the structural stability of the U-shaped device 3.

[0046] Example 10: This example provides a safety attachment point device for high-altitude operations of main transformers to ensure the safety of large-scale power grids. In addition to the technical solutions of the above examples, it also has the following technical features: the cross-sectional dimensions of one end of the insert block 33 are equal to the cross-sectional dimensions of one end of the rectangular slot 23 and the rectangular slot 32.

[0047] Specifically, it is ensured that one end of the insert block 33 can be seamlessly inserted into rectangular slot 23 and rectangular slot 32.

[0048] Working principle: Start motor 28, so that the output shaft of motor 28 drives the take-up roller 7 to rotate, so that the take-up roller 7 automatically releases the wire rope 71. After the operator inserts the plug 73 into the plug hole 75, under the action of the thread, rotate the threaded sleeve 76, so that the threaded sleeve 76 moves on the threaded plug 2 74 towards the threaded plug 1 72, until one end of the threaded sleeve 76 is located on the threaded plug 1 72, ensuring that the threaded plug 1 72 and the threaded plug 2 74 are fixed together, ensuring the structural stability of one end of the two wire ropes 71. Subsequently, the personnel motor 4 is started, causing the output shaft of the motor 4 to drive the threaded rod 41 to rotate within the fixed guide post 1. Under the action of the thread, the threaded rod 41 can drive the mover 2 to move up and down on the fixed guide post 1, thereby allowing the mover 2 to drive the U-shaped device 3, the rotating wheel 31, and one end of the wire rope 71 to move up and down. After ensuring that one end of the wire rope 71 stops at a suitable height, the two rectangular inserts 25 are inserted into the corresponding fixed slots 22 and through holes 11 to ensure the structural stability of the mover 2 and the wire rope 71. Then, the insert block 33 is inserted into the rectangular slot 22 and the rectangular slot 13 to ensure the structural stability of the U-shaped device 3. The above operations allow the height of the wire rope 71 to be quickly adjusted, and also facilitate personnel to conduct multiple training sessions at different heights of the wire rope 71. It is convenient for personnel to inspect the wire rope 71 by attaching auxiliary tools to it and to conduct long-term, repeated manual operations, which is fast, convenient, and saves time.

[0049] This embodiment breaks through the traditional technical logic of "passively adapting to height" in aerial work platform attachment devices. Through collaborative innovation of drive components and mechanical structures, it achieves a technological leap of "actively adapting to scenarios," producing technical effects that exceed conventional design expectations. On one hand, it forms a closed-loop linkage between the height adjustment of the mover and the raising and lowering of the wire rope through dual-motor drive, ensuring that the tension of the wire rope is always kept within the optimal safety range. Even after multiple raising and lowering adjustments, it can still accurately maintain the stability of the attachment point, completely solving the hidden problems of attachment point offset and insufficient safety redundancy caused by tension fluctuations in traditional manual adjustment. This effect is not simply "labor-saving," but rather an exponential improvement in safety performance achieved through the precise coordination of the mechanical structure. Specifically, the device establishes a dynamic linkage closed loop between the height adjustment of the mover 2 and the winding and unwinding of the wire rope 71 through a dual-motor drive system consisting of motor 4 and motor 8. Its core logic lies in achieving adaptive tension control through precise coordination of the mechanical structure: when motor 4 drives the threaded rod 41 to rotate, the mover 2 moves up and down along the fixed guide rail 1, simultaneously raising and lowering the U-shaped device 3, the rotating wheel 31, and one end of the wire rope 71. Meanwhile, motor 8 synchronously drives the winding roller 7 to rotate in the corresponding direction, winding or unwinding the wire rope 71. To counteract tension fluctuations caused by height changes, when the mover 2 rises, the required length of the wire rope 71 increases, and the second motor 8 rotates in the forward direction to release the corresponding length of wire rope 71 from the take-up roller 7. When the mover 2 descends, the wire rope 71 becomes redundant, and the second motor 8 rotates in the reverse direction to retract the excess wire rope 71 from the take-up roller 7. This real-time linkage ensures that the tension of the wire rope 71 remains stable within the safe range required by the GB30862-2014 standard, avoiding fatigue damage to the wire rope 71 caused by excessive tension or shaking of the hanging point caused by excessive tension. Even after dozens of repeated lifting and lowering adjustments, the lifting displacement of the mover 2 and the take-up and unwinding length of the take-up roller 7 can still maintain a precise match, thanks to the thread transmission accuracy of the threaded rod 41 and the threaded hole 21. This completely solves the hidden problems of hanging point offset and insufficient safety redundancy caused by human operation errors and lag in tension sensing in traditional manual adjustment. This technological effect is by no means a simple "effort-saving" optimization. Rather, through the coordinated operation of core components such as motor 4, motor 8, threaded rod 41, and winding roller 7, the safety performance of the hanging point device is upgraded from "passively meeting standards" to "actively optimizing and ensuring safety." This achieves an exponential increase in safety redundancy. Even when workers at height are using auxiliary tools for inspection or training, the hanging point can always maintain absolute stability, fundamentally avoiding safety risks caused by tension fluctuations.

[0050] On the other hand, the double fixing structure of the connector, consisting of a plug and a threaded sleeve, not only meets the need for rapid assembly, but also, through the complementary design of the threaded plug diameter and the plug-in fit, enables the tensile strength of the connection to break through the mechanical limit of a single fixing method. Actual measurements show that its static load bearing capacity can reach more than 18kN, far exceeding the 15kN threshold specified in the national standard GB30862-2014. Moreover, it can still maintain structural integrity after repeated disassembly and assembly over a long period of time. This unexpected strength performance provides an extra safety redundancy for high-altitude operations.

[0051] Furthermore, this design breaks through the conventional technical understanding that "the hanging point device for high-altitude operations is merely a 'fixed carrier'" and constructs an integrated technical system of "dynamic adaptation, intelligent adjustment, and safety redundancy." In traditional designs, the height adjustment of the hanging point device and the winding and unwinding of the wire rope are considered independent operations, requiring manual judgment and coordination. However, this solution transforms "height adjustment" and "tension control" into synchronously responding system behaviors through the mechanical linkage of the threaded rod drive and the winding roller transmission. It can achieve precise matching between the hanging point position and the wire rope state without manual intervention. This design breaks away from the mindset that "mechanical structures are only used for load bearing" and upgrades the hanging point device from a "passive load bearing component" to an "active adaptation system." Specifically, a deep mechanical linkage mechanism is established between the threaded rod 41 driven by motor 4 and the take-up roller 7 driven by motor 8, integrating the "height adjustment of the mover 2" and the "tension control of the wire rope 71" into a synchronous response system behavior that requires no manual intervention: when motor 4 starts, its output shaft drives the threaded rod 41 to rotate within the fixed guide post 1. Through the threaded engagement between the threaded rod 41 and the threaded hole 21 on the mover 2, the mover 2 is driven to precisely rise and fall along the fixed guide post 1, thereby driving the U-shaped device 3 hinged to the mover 2, the rotating wheel 31 within the U-shaped device 3, and one end of the wire rope 71 passing over the rotating wheel 31. The height is changed step by step; at the same time, motor 2 drives the take-up roller 7 to rotate in the forward or reverse direction according to the lifting direction and displacement of the mover 2. When the mover 2 rises, the wire rope 71 needs to extend to adapt to the height increase, and the take-up roller 7 rotates in the forward direction to release the corresponding length of wire rope 71; when the mover 2 descends, the wire rope 71 becomes redundant, and the take-up roller 7 rotates in the reverse direction to retract the excess part. Throughout the process, the fixed ring 1 52 and the fixed ring 2 53 play a guiding and limiting role for the wire rope 71, ensuring that the wire rope 71 always moves along the preset trajectory, and finally achieves real-time and accurate matching between the hanging point position and the tension state of the wire rope 71. This design completely breaks away from the traditional mindset that "the mechanical structure of the hanging point device is only used to bear the load of high-altitude operations." It breaks the technical limitations of height adjustment and tension control being independent and requiring repeated manual calibration. Through the coordinated linkage of core components such as the threaded rod 41, the winding roller 7, the motor 1 4, and the motor 2 8, the hanging point device is endowed with the functional attributes of active sensing and active adjustment. It upgrades the device from a "passive load-bearing component" that simply bears the load to an "active adaptation system" that can dynamically adapt the height and tension according to the operational needs, greatly improving the safety and convenience of high-altitude operations.

[0052] Meanwhile, the structural design of the rectangular insert and through hole connection and the positioning and matching of the insert block and rectangular groove breaks the conventional understanding that "sliding parts need to rely on a single locking method". Through the complementary design of multiple mechanical limits, it not only ensures the flexibility of adjustment, but also achieves the absolute stability of the locking state. This "dialectical unity of dynamic adjustment and static locking" provides a brand-new technical paradigm for the design of high-altitude operation safety devices. Its technical logic has far exceeded the simple "structural optimization" and entered the advanced level of "system collaborative innovation".

[0053] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A large-scale power grid safety protection device for high-altitude operations of main transformers, characterized in that, include: Two fixed guide rail posts (1) are arranged in parallel. A mover (2) is slidably installed on the fixed guide rail posts (1). A U-shaped device (3) is hinged to one side of the mover (2). A rotating wheel (31) is rotatably installed inside the U-shaped device (3). Two wall plates (5) are located on one side of two fixed guide rail columns (1), and two fixing blocks (51) are fixedly installed on one side of the wall plates (5). Fixing ring one (52) and fixing ring two (53) are fixedly installed on the two fixing blocks (51). Two protective boxes (6) are located below two wall panels (5) respectively. The top of the protective box (6) is provided with a discharge chute (61). A winding roller (7) is rotatably installed inside the protective box (6). A steel wire rope (71) is wound on the winding roller (7). One end of the steel wire rope (71) passes through the discharge chute (61), the first fixing ring (52), and the second fixing ring (53) and passes through the rotating wheel (31). One end of the two steel wire ropes (71) is fixed by a connector. The drive assembly is located on two fixed guide rails (1) and is used to drive two movers (2) to move up and down on the two fixed guide rails (1) respectively, and to drive two take-up rollers (7) to rotate in opposite directions respectively.

2. The large-scale power grid safety assurance main transformer high-altitude operation safety attachment device according to claim 1, characterized in that, The driving component includes: Two motors (4) are fixedly installed at the bottom of two fixed guide rail posts (1). Both of the movers (2) have threaded holes (21). A threaded rod (41) is coaxially connected to the output shaft of the motor (4). One end of the threaded rod (41) passes through the fixed guide rail post (1) and the threaded hole (21). Two motor slots (62) are respectively opened in two protective boxes (6). A second motor (8) is fixedly installed in the motor slot (62). The output shaft of the second motor (8) is coaxially connected to the take-up roller (7).

3. A large-scale power grid safety assurance main transformer high-altitude operation safety attachment device according to claim 2, characterized in that, One end of the threaded rod (41) is rotatably connected to the fixed guide post (1), and the other end of the threaded rod (41) is threadedly connected to the threaded hole (21).

4. A large-scale power grid safety assurance main transformer high-altitude operation safety attachment device according to claim 1, characterized in that, Also includes: A revolving door (9) is hinged to the outlet of the protective box (6), and a handle (91) is fixedly installed on one side of the revolving door (9).

5. A large-scale power grid safety assurance main transformer high-altitude operation safety attachment device according to claim 1, characterized in that, The connector includes: Threaded post one (72) and threaded post two (74) are respectively fixedly installed at one end of two steel wire ropes (71). A plug (73) is fixedly installed at one end of threaded post one (72). A plug hole (75) is opened at one end of threaded post two (74), and the plug (73) is located in the plug hole (75). A threaded sleeve (76) is threaded on threaded post two (74).

6. A large-scale power grid safety assurance main transformer high-altitude operation safety attachment device according to claim 5, characterized in that, The insert (73) is inserted into the socket (75), the threaded sleeve (76) is threadedly connected to the first threaded post (72), and the second threaded post (74) has the same diameter as the first threaded post (72).

7. A large-scale power grid safety assurance main transformer high-altitude operation safety attachment device according to claim 2, characterized in that, The fixed guide post (1) is provided with several through holes (11) on both sides of the threaded rod (41). The mover (2) is provided with two fixed grooves (22). A flat plate (24) is provided on one side of the mover (2). Two rectangular inserts (25) are provided on one side of the flat plate (24). One end of the two rectangular inserts (25) passes through the two fixed grooves (22) and two of the through holes (11) respectively.

8. A large-scale power grid safety assurance main transformer high-altitude operation safety attachment device according to claim 7, characterized in that, The flat plate (24) and the two rectangular inserts (25) are integrally formed. One end of the rectangular insert (25) is inserted into the fixing groove (22) and the through hole (11). The cross-sectional dimensions of the rectangular insert (25), the fixing groove (22) and the through hole (11) are equal.

9. A large-scale power grid safety protection main transformer high-altitude operation safety attachment device according to claim 1, characterized in that, The U-shaped device (3) has a rectangular groove 2 (32) and the moving device (2) has a rectangular groove 1 (23) connected to the rectangular groove 2 (32). A plug (33) is inserted into the rectangular groove 2 (32) and one end of the plug (33) extends into the rectangular groove 1 (23).

10. A large-scale power grid safety protection main transformer high-altitude operation safety attachment device according to claim 9, characterized in that, The cross-sectional dimensions of one end of the insert (33) are equal to the cross-sectional dimensions of one end of the rectangular slot one (23) and the rectangular slot two (32).

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