Substation patrol maintenance auxiliary device and operation method

Abstract

The application provides a substation inspection and maintenance auxiliary device and an operation method. The device comprises a maintenance platform, a hoisting platform, a fixing pin and a second winch. The rear end of the maintenance platform is provided with a notched groove and a fixed baffle matched with the notched groove. The baffle is provided with a first fixing hole, and the platform is provided with two first winches. The hoisting platform is provided with a lifting ring and a second fixing hole, and is embedded into the maintenance platform through the notched groove. The fixing pin is detachably inserted into the two fixing holes, so that the hoisting platform is rigidly connected with the fixed baffle. The second winch is connected with the lifting ring through a steel wire rope, drives the hoisting platform to ascend and descend, drives the rear end of the maintenance platform to ascend and descend, and forms three-point support together with the two first winches. The device realizes rigid connection of the two platforms through the fixing pin, forms a three-point support structure, and can independently lift spare parts or tools without accompanying staff, so that the problem that the prior art only provides one lifting platform and cannot independently lift materials, resulting in low efficiency, is solved.

Description

Technical Field

[0001] This application belongs to the field of substation inspection devices, and particularly relates to a substation inspection and maintenance auxiliary device and its operation method. Background Technology

[0002] A substation is a location in a power system that transforms voltage and current, receives electrical energy, and distributes it. In the daily operation and management of a substation, to ensure its continuous, safe, and efficient operation, it is essential to assign professional inspection personnel to conduct comprehensive and meticulous inspections and maintenance of all equipment, systems, and the operating environment within the substation on a regular or irregular basis. These inspection tasks include not only visual inspections, operational status monitoring, and recording of abnormalities for key power equipment such as transformers, circuit breakers, disconnect switches, and relay protection devices, but also inspections of auxiliary systems such as control rooms, cable trenches, grounding systems, and fire protection facilities. By promptly identifying potential hazards, handling minor faults, and performing preventative maintenance, inspection personnel play a crucial role in ensuring the overall operational stability of the substation, improving power supply reliability, and preventing major safety accidents.

[0003] Patent application number 202310342141.0 discloses a substation inspection and maintenance auxiliary system. This system includes a movable base and a pair of portal-shaped mounting frames installed on both sides of the movable base. A drive-lifting maintenance device is fitted onto the movable base and the portal-shaped mounting frames. A supporting movement device is installed at the bottom of the movable base. The drive-lifting maintenance device includes two pairs of limiting support frames, a maintenance workbench, a lifting drive assembly, and a sudden descent safety locking assembly. The two pairs of limiting support frames are respectively mounted on one pair of portal-shaped mounting frames. The two ends of the maintenance workbench are slidably mounted on the limiting support frames. The lifting drive assembly is connected to the maintenance workbench and the portal-shaped mounting frames, and the sudden descent safety locking assembly is also connected to the portal-shaped mounting frames and the maintenance workbench. The supporting movement device includes a moving wheel assembly and a retractable support assembly. Through this structure, the system realizes the lifting function of the maintenance workbench, facilitating high-altitude inspection and maintenance operations for personnel.

[0004] However, the device only has one lifting platform. When spare parts or tools need to be lifted, the staff must be lifted up and down with them, which affects work efficiency. Summary of the Invention

[0005] The purpose of this application is to overcome the defects in the prior art and provide a substation inspection and maintenance auxiliary device and operation method.

[0006] This application provides a substation inspection and maintenance auxiliary device, comprising:

[0007] The maintenance platform has a notch at its rear end and a fixed baffle at its rear end. The shape of the fixed baffle is adapted to the notch. The fixed baffle has a first fixing hole. The maintenance platform is equipped with two first winches.

[0008] A hoisting platform, wherein a lifting ring is fixedly installed on the hoisting platform, and a second fixing hole is opened on the hoisting platform, and the hoisting platform is embedded into the maintenance platform through the notch;

[0009] A fixing pin is provided, which can be detachably inserted into the first fixing hole and the second fixing hole to rigidly connect the hoisting platform to the fixing baffle.

[0010] The second winch is connected to the lifting ring via a wire rope. The second winch drives the lifting platform to rise and fall via the wire rope and the lifting ring. The lifting platform drives the rear center of the maintenance platform to rise and fall via the fixing pin and the fixing baffle, forming a three-point support together with the two first winches.

[0011] Optionally, an electric push rod is fixedly installed at the top of the fixed baffle, and a guide rod is fixedly connected to the output end of the electric push rod. A telescopic head is installed at the end of the guide rod that can move left and right. A spring is sleeved on the guide rod, with one end of the spring abutting against the guide rod and the other end of the spring abutting against the telescopic head. The device also includes a column, on which anti-fall teeth that cooperate with the telescopic head are evenly arranged.

[0012] Optionally, the upper end face of the anti-fall tooth is a horizontal side, and the lower end of the anti-fall tooth is an inclined side.

[0013] Optionally, the end of the telescopic head is arc-shaped.

[0014] Optionally, a mounting block is fixedly provided on the outer side of the side baffle of the maintenance platform, and a guide wheel is rotatably provided on the mounting block; the device also includes a vertical plate, and a slide rail is fixedly provided on the inner side of the vertical plate, with the guide wheel embedded in the slide rail.

[0015] Optionally, a T-shaped slider is fixedly installed on the back of the hoisting platform; the device also includes a column, and a groove is opened on the front end face of the column, into which the T-shaped slider is embedded.

[0016] Optionally, the two first winches are operated synchronously through electrical control.

[0017] This application also provides an operation method for a substation inspection and maintenance auxiliary device, used to operate any of the above-described devices, the method comprising:

[0018] Insert the fixing pin into the first fixing hole and the second fixing hole to rigidly connect the hoisting platform with the fixing baffle;

[0019] The wire rope is wound up and unwound by the second winch, and the bottom end of the wire rope is fixedly connected to the lifting ring. The wire rope drives the lifting platform to rise and fall through the lifting ring.

[0020] The hoisting platform drives the rear center of the maintenance platform to rise and fall through the fixed pin and the fixed baffle, forming a three-point support together with the two first winches.

[0021] Optionally, the device further includes a column with anti-fall teeth evenly distributed on it; an electric push rod is fixedly mounted on the top of the fixed baffle, a guide rod is fixedly connected to the output end of the electric push rod, a telescopic head is provided at the end of the guide rod that can move left and right, a spring is sleeved on the guide rod, one end of the spring abuts against the guide rod, and the other end of the spring abuts against the telescopic head; the method further includes:

[0022] When the maintenance platform rises, the electric push rod pushes the guide rod, causing the telescopic head to approach the anti-fall tooth. The telescopic head slides along the inclined edge of the anti-fall tooth, and the spring maintains the contact between the telescopic head and the anti-fall tooth.

[0023] When the maintenance platform descends, the electric push rod pulls the guide rod, causing the telescopic head to move away from the anti-fall tooth.

[0024] Optionally, a mounting block is fixedly provided on the outer side of the side baffle of the maintenance platform, and a guide wheel is rotatably provided on the mounting block; the device further includes a vertical plate, and a slide rail is fixedly provided on the inner side of the vertical plate, with the guide wheel embedded in the slide rail; the method further includes:

[0025] When the maintenance platform is raised or lowered, the guide wheels roll along the slide rail to limit the forward and backward swaying of the maintenance platform.

[0026] The beneficial effects of this application are:

[0027] This application provides a substation inspection and maintenance auxiliary device, comprising: a maintenance platform, wherein a notch is provided at the rear end of the maintenance platform, and a fixed baffle is fixedly installed at the rear end of the maintenance platform, the shape of the fixed baffle being adapted to the notch, and a first fixing hole is provided on the fixed baffle; two first winches are provided on the maintenance platform; a hoisting platform, wherein a lifting ring is fixedly installed on the hoisting platform, and a second fixing hole is provided on the hoisting platform, the hoisting platform being embedded into the maintenance platform through the notch; a fixing pin, wherein the fixing pin is detachably inserted into the first fixing hole and the second fixing hole, thereby rigidly connecting the hoisting platform to the fixed baffle; and a second winch, wherein the second winch is connected to the lifting ring via a wire rope, and the second winch drives the hoisting platform to rise and fall via the wire rope and the lifting ring, and the hoisting platform drives the rear center of the maintenance platform to rise and fall via the fixing pin and the fixed baffle, forming a three-point support together with the two first winches. This application achieves a rigid connection between the hoisting platform and the maintenance platform through fixed pins, so that the second winch and the two first winches form a three-point support, thereby enabling the independent lifting of spare parts or tools without the need for staff accompaniment. This overcomes the shortcomings of the existing technology, which only has one lifting platform and cannot lift spare parts or tools independently, resulting in low work efficiency, and thus improves work efficiency. Attached Figure Description

[0028] Figure 1 This is the first schematic diagram of the inspection and maintenance auxiliary device in this application;

[0029] Figure 2 This is a second schematic diagram of the inspection and maintenance auxiliary device in this application;

[0030] Figure 3 This is a partial schematic diagram of the inspection and maintenance auxiliary device in this application;

[0031] Figure 4 This is a top-view cross-sectional schematic diagram of the inspection and maintenance auxiliary device in this application;

[0032] Figure 5 This is an isometric schematic diagram of the maintenance platform and fixed baffle in this application;

[0033] Figure 6 This is a schematic diagram of part A of the inspection and maintenance auxiliary device in this application;

[0034] Figure 7 This is a schematic diagram of part B of the inspection and maintenance auxiliary device in this application;

[0035] Figure 8 This is a schematic diagram of part C of the inspection and maintenance auxiliary device in this application;

[0036] Figure 9This is a schematic diagram of section D in the top view of the inspection and maintenance auxiliary device in this application;

[0037] Figure 10 This is a schematic diagram of section E, viewed from above, of the inspection and maintenance auxiliary device in this application. Detailed Implementation

[0038] Exemplary embodiments of the present disclosure will now be provided in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it is to be understood that various forms of implementation of the present disclosure are intended and should not be limited to the embodiments set forth herein. Rather, the embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0039] Please refer to Figures 1-2 As shown, this application provides a substation inspection and maintenance auxiliary device, applied in the field of substation inspection and maintenance, to solve the problem that existing inspection and maintenance auxiliary devices only have one lifting platform, which cannot independently lift spare parts or tools. The device includes:

[0040] Please refer to Figure 4 , Figure 5 As shown, the maintenance platform 2 has a notch 207 at its rear end and a fixed baffle 203 at its rear end. The shape of the fixed baffle 203 is adapted to the notch 207. The fixed baffle 203 has a first fixing hole 211. Two first winches 208 are provided on the maintenance platform 2.

[0041] The maintenance platform 2 is a platform structure used to support personnel for high-altitude inspection and maintenance operations. A notch 207 is opened at the rear end of the maintenance platform 2, which is used for the subsequent hoisting platform 3 to pass through, so that the hoisting platform 3 can move up and down independently in the rear end area of ​​the maintenance platform 2 without interfering with the main structure of the maintenance platform 2.

[0042] A fixed baffle 203 is also fixedly installed at the rear end of the maintenance platform 2. The shape of the fixed baffle 203 is perfectly matched with the shape of the notch 207. In other words, the fixed baffle 203 can fill the empty area formed by the notch 207, thereby closing the notch 207 when the hoisting platform 3 does not need to pass through, ensuring the integrity of the rear end structure of the maintenance platform 2.

[0043] A first fixing hole 211 is provided on the fixing baffle 203. The first fixing hole 211 is used to cooperate with the corresponding fixing hole on the hoisting platform 3 so as to lock the hoisting platform 3 on the fixing baffle 203 by means of fixing pin 309.

[0044] In addition, the maintenance platform 2 is equipped with two first winches 208, both of which are wound with first steel wire ropes 209. The top of the first steel wire ropes 209 is fixedly connected to the crossbeam 103 of the support frame 1. By the action of the first winches 208 to wind and unwind the steel wire ropes, the maintenance platform 2 can be driven to rise and fall in the vertical direction.

[0045] The two first winches 208 are operated synchronously through electrical control, which ensures that the maintenance platform 2 is subjected to balanced force during the lifting process and avoids tilting or shaking of the maintenance platform 2 due to uneven force on one side, thereby improving the stability and safety of the lifting of the maintenance platform 2.

[0046] Please refer to Figure 3 , Figure 6 As shown, the maintenance platform 2 has side baffles 202 on both sides. The side baffles 202 are used to protect the sides of the maintenance platform 2 and prevent tools or parts from falling from the sides. A mounting block 204 is fixedly installed on the outer side of the side baffle 202. A guide wheel 205 is rotatably installed on the mounting block 204. The guide wheel 205 is embedded in the slide rail 206 on the inner side of the upright plate 102. Through the cooperation of the guide wheel 205 and the slide rail 206, the maintenance platform 2 can be effectively guided to rise and fall along a predetermined trajectory, avoiding left and right swaying of the maintenance platform 2 during the rising and falling process, and ensuring the accuracy and stability of the movement of the maintenance platform 2.

[0047] The front end of the maintenance platform 2 is hinged with a movable baffle 201. The movable baffle 201 can be flipped open or closed relative to the maintenance platform 2. When the movable baffle 201 is lowered, it can form a ramp to facilitate the entry of personnel or materials into the maintenance platform 2. When the movable baffle 201 is retracted, it can close the front opening of the maintenance platform 2, which can play a safety protection role.

[0048] Please refer to Figure 4 , Figure 9 As shown, casters 104 are fixedly installed on the lower surface of the base 101, and counterweights 105 are fixedly installed on the upper surface of the base 101. There are two counterweights 105, which are respectively installed on the left and right sides of the base 101. The counterweights 105 can effectively lower the center of gravity of the equipment and improve the stability of the equipment.

[0049] A column 303 is fixedly installed between the crossbeam 103 and the base 101.

[0050] The maintenance platform 2 has a first guide mechanism 210 on its side baffle 202, which cooperates with the first wire rope 209. The first guide mechanism 210 restricts the accidental movement of the first wire rope 209 through two pulleys. The two first winches 208 can work synchronously to ensure the stability of the maintenance platform 2 during the lifting process.

[0051] The hoisting platform 3 is equipped with a lifting ring 301 and a second fixing hole. The hoisting platform 3 is embedded into the maintenance platform 2 through the notch 207.

[0052] The hoisting platform 3 is a lifting platform independent of the maintenance platform 2, specifically used for hoisting spare parts or tools without requiring personnel to accompany it during hoisting.

[0053] A lifting ring 301 is fixedly installed on the hoisting platform 3. The lifting ring 301 is located at the top of the hoisting platform 3 and is used to be fixedly connected to the bottom end of the second wire rope 307 on the second winch 306. By winding and unwinding the second wire rope 307 by the second winch 306, the hoisting platform 3 can be driven to rise and fall in the vertical direction.

[0054] A second fixing hole is also provided on the hoisting platform 3, and the position of the second fixing hole corresponds to the first fixing hole 211 on the fixing baffle 203.

[0055] The hoisting platform 3 is embedded into the maintenance platform 2 through the notch 207 at the rear end of the maintenance platform 2. That is to say, the hoisting platform 3 is located in the space area corresponding to the notch 207 in the initial state, and its external dimensions match the notch 207, so that the hoisting platform 3 can slide freely up and down in the notch 207 without colliding with the maintenance platform 2.

[0056] Please refer to Figure 4 , Figure 10 As shown, a T-shaped slider 305 is fixedly installed on the back of the hoisting platform 3. The T-shaped slider 305 is embedded in the groove 304 at the front end of the column 303. The cooperation between the T-shaped slider 305 and the groove 304 enables the hoisting platform 3 to be slidably installed on the column 303. This T-shaped structure can effectively prevent the hoisting platform 3 from shifting forward or backward or left or right during the lifting process, ensuring the linearity and stability of the hoisting platform 3.

[0057] A hook 302 is fixedly installed on the lower surface of the hoisting platform 3. The hook 302 can be used to suspend the items to be hoisted, so that the hoisting platform 3 can be used for both lifting operations, where parts or tools are placed directly on the upper surface of the hoisting platform 3, and lifting operations, where parts or tools are suspended by the hook 302, which greatly increases the flexibility of use.

[0058] A fixing pin 309 is detachably inserted into the first fixing hole 211 and the second fixing hole, so that the hoisting platform 3 is rigidly connected to the fixing baffle 203.

[0059] The fixing pin 309 is a detachable connecting element. When it is necessary to fix the lifting platform 3 and the maintenance platform 2 together, the fixing pin 309 is passed through both the first fixing hole 211 on the fixing baffle 203 and the second fixing hole on the lifting platform 3, thereby rigidly connecting the lifting platform 3 and the fixing baffle 203 together. This rigid connection means that the lifting platform 3 and the maintenance platform 2 become a whole under the action of the fixing pin 309, and there is no relative movement between the two.

[0060] When the fixing pin 309 is removed, the connection between the lifting platform 3 and the fixed baffle 203 is released, allowing the lifting platform 3 to move up and down independently of the maintenance platform 2. This detachable design allows operators to flexibly choose whether the lifting platform 3 operates in conjunction with the maintenance platform 2 or independently, depending on actual work needs.

[0061] For example, when it is necessary to transport personnel to a high place for maintenance work, the hoisting platform 3 can be fixed to the maintenance platform 2 by the fixing pin 309 so that the two can be raised and lowered synchronously. At this time, the hoisting platform 3 can be used as part of the maintenance platform 2 to increase the working area. When it is necessary to hoist parts or tools separately, the fixing pin 309 can be pulled out so that the hoisting platform 3 can be raised and lowered independently.

[0062] When workers need to reach their workstations, the hoisting platform 3 is secured to the maintenance platform 2 via fixing pins 309. Simultaneously, the first winch 208 and the second winch 306 are activated, causing the maintenance platform 2 and hoisting platform 3 to rise or fall synchronously. When spare parts or tools need to be lifted, the fixing pins 309 between the hoisting platform 3 and the maintenance platform 2 are removed, and the second winch 306 is activated independently, allowing the hoisting platform 3 to rise and fall independently without interfering with the normal work of the workers on the maintenance platform 2.

[0063] The second winch 306 is connected to the lifting ring 301 via a wire rope. The second winch 306 drives the lifting platform 3 to rise and fall via the wire rope and the lifting ring 301. The lifting platform 3 drives the rear center of the maintenance platform 2 to rise and fall via the fixing pin 309 and the fixing baffle 203, forming a three-point support together with the two first winches 208.

[0064] Please refer to Figure 3 , Figure 7 As shown, the second winch 306 is fixedly mounted on the top of the crossbeam 103 of the support frame 1. A second wire rope 307 is wound around the second winch 306, and the bottom end of the second wire rope 307 is fixedly connected to the lifting ring 301 on the hoisting platform 3. When the second winch 306 is working, by winding and unwinding the second wire rope 307, the hoisting platform 3 can be driven to slide up and down along the column 303, thereby realizing the lifting and lowering of the hoisting platform 3.

[0065] A second guide mechanism 308 is provided on the crossbeam 103 to cooperate with the second wire rope 307. The second guide mechanism 308 restricts the accidental movement of the second wire rope 307 through two pulleys, ensuring that the second wire rope 307 always stays on the correct movement path and avoiding the risk of the wire rope derailing or tangling.

[0066] When the hoisting platform 3 is rigidly connected to the fixed baffle 203 via the fixed pin 309, the lifting force applied by the second winch 306 through the second wire rope 307 and the lifting ring 301 will be transmitted to the rear center of the maintenance platform 2 via the fixed pin 309 and the fixed baffle 203, thereby driving the rear center of the maintenance platform 2 to lift.

[0067] like Figure 1 As shown by the dashed lines connecting the three winches, the two first winches 208 on the maintenance platform 2 act on the front sides of the maintenance platform 2 respectively, thus forming a three-point support system composed of the two first winches 208 and the second winch 306. Compared with the traditional two-point support or single-point support, this three-point support structure has better stability and balance, and can effectively prevent the maintenance platform 2 from tilting or swaying during the lifting process. Especially when the maintenance platform 2 is under a large load, the three-point support can evenly distribute the load, significantly improving the safety and reliability of the equipment.

[0068] When the hoisting platform 3 needs to be used alone, simply remove the fixing pin 309. At this time, the second winch 306 will only drive the hoisting platform 3 to rise and fall, while the two first winches 208 will independently drive the maintenance platform 2 to rise and fall. The two do not interfere with each other, realizing the separate and independent operation of the maintenance platform 2 and the hoisting platform 3.

[0069] In one specific embodiment, an electric push rod 402 is fixedly provided at the top of the fixed baffle 203, and a guide rod 403 is fixedly connected to the output end of the electric push rod 402. A telescopic head 405 is provided at the end of the guide rod 403 that can move left and right. A spring 404 is sleeved on the guide rod 403, with one end of the spring 404 abutting against the guide rod 403 and the other end of the spring 404 abutting against the telescopic head 405.

[0070] Anti-fall teeth 401 that cooperate with telescopic heads 405 are evenly arranged on the edge of the column 303.

[0071] The upper end of the anti-fall tooth 401 is a horizontal edge, and the lower end of the anti-fall tooth 401 is an inclined edge.

[0072] The end of the telescopic head 405 is arc-shaped.

[0073] When the maintenance platform 2 is in the upward phase, the electric push rod 402 pushes the telescopic head 405 close to the anti-fall tooth 401. When the inclined edge of the lower end of the anti-fall tooth 401 contacts the arc head of the telescopic head 405, the telescopic head 405 retracts under the guidance of the inclined edge of the anti-fall tooth 401, and at the same time compresses the spring 404. When the telescopic head 405 passes the lower end of the anti-fall tooth 401 and contacts the horizontal edge of the upper end of the anti-fall tooth 401, the telescopic head 405 pops out again under the elastic force of the spring 404, so that the anti-fall tooth 401 will not obstruct the upward movement of the maintenance platform 2.

[0074] If the maintenance platform 2 falls unexpectedly at this time, the horizontal edge at the upper end of the anti-fall tooth 401 will abut against the telescopic head 405 in the pop-up state, thereby locking the maintenance platform 2 and preventing it from falling further, thus playing a role in anti-fall protection.

[0075] When the maintenance platform 2 is in the downward phase, the electric push rod 402 pushes the telescopic head 405 away from the anti-fall tooth 401, so that the telescopic head 405 no longer contacts the anti-fall tooth 401, thereby preventing the anti-fall tooth 401 from obstructing the downward movement of the maintenance platform 2.

[0076] Please refer to Figures 1-10 As shown, this application also provides an operation method for a substation inspection and maintenance auxiliary device, applied in the field of substation inspection and maintenance, used to operate the aforementioned device, the method comprising:

[0077] S801. Insert the fixing pin into the first fixing hole and the second fixing hole to make the hoisting platform rigidly connected to the fixing baffle.

[0078] When workers need to reach the workstation, they first insert the fixing pin 309 into the first fixing hole 211 on the fixing baffle 203 and the second fixing hole on the hoisting platform 3, thus rigidly connecting the hoisting platform 3 and the fixing baffle 203 into a single unit. This fixes the hoisting platform 3 to the maintenance platform 2, preventing relative movement between them and preparing for subsequent synchronous lifting. This operation is a necessary prerequisite for linking the maintenance platform 2 and the hoisting platform 3; only when the fixing pin 309 is fully inserted and locked can the hoisting platform 3 reliably drive the rear center of the maintenance platform 2 to rise and fall.

[0079] S802. The wire rope is wound up and unwound by the second winch, the bottom end of the wire rope is fixedly connected to the lifting ring, and the wire rope drives the lifting platform to rise and fall through the lifting ring.

[0080] The second winch 306 is fixedly mounted on the top of the crossbeam 103 of the support frame 1, and a second wire rope 307 is wound around it. The bottom end of the second wire rope 307 is fixedly connected to the lifting ring 301 on the top of the hoisting platform 3. When the second winch 306 is started, the hoisting platform 3 can be driven to slide up and down along the column 303 by winding and unwinding the second wire rope 307, thereby realizing the lifting and lowering of the hoisting platform 3. A second guide mechanism 308 is provided on the crossbeam 103 to cooperate with the second wire rope 307. The second guide mechanism 308 restricts the accidental movement of the second wire rope 307 through two pulleys, ensuring that the wire rope always stays on the correct movement path. When the fixing pin 309 has been inserted, the lifting and lowering movement of the hoisting platform 3 is transmitted to the maintenance platform 2 through the fixing pin 309 and the fixing baffle 203.

[0081] The first winch 208 and the second winch 306 are started simultaneously, allowing the maintenance platform 2 and the hoisting platform 3 to rise or fall synchronously. The two first winches 208 are electrically controlled to operate synchronously, ensuring the stability of the maintenance platform 2 during lifting. When spare parts or tools need to be lifted, the fixing pin 309 between the hoisting platform 3 and the maintenance platform 2 is removed, and the second winch 306 is started independently, allowing the hoisting platform 3 to rise and fall independently without interfering with the normal work of personnel on the maintenance platform 2.

[0082] S803, the hoisting platform drives the rear center of the maintenance platform to rise and fall through the fixed pin and the fixed baffle, forming a three-point support together with the two first winches.

[0083] When the hoisting platform 3 is rigidly connected to the fixed baffle 203 via the fixed pin 309, the lifting force applied by the second winch 306 through the second wire rope 307 and the lifting ring 301 will be transmitted to the rear center of the maintenance platform 2 via the fixed pin 309 and the fixed baffle 203, thereby driving the rear center of the maintenance platform 2 to lift.

[0084] Meanwhile, the two first winches 208 on the maintenance platform 2 act on the front sides of the maintenance platform 2 respectively, thus forming a three-point support system composed of the two first winches 208 and the second winch 306. Compared with the traditional two-point support or single-point support, this three-point support structure has better stability and balance, and can effectively prevent the maintenance platform 2 from tilting or swaying during the lifting process. Especially when the maintenance platform 2 is under a large load, the three-point support can evenly distribute the load, significantly improving the safety and reliability of the equipment.

[0085] When the hoisting platform 3 needs to be used alone, simply remove the fixing pin 309. At this time, the second winch 306 will only drive the hoisting platform 3 to rise and fall, while the two first winches 208 will independently drive the maintenance platform 2 to rise and fall. The two do not interfere with each other, realizing the separate and independent operation of the maintenance platform 2 and the hoisting platform 3.

[0086] Please refer to Figure 3 , Figure 8 As shown, when the maintenance platform 2 rises, the electric push rod 402 pushes the guide rod 403, causing the telescopic head 405 to approach the anti-fall tooth 401. The telescopic head 405 slides along the inclined edge of the anti-fall tooth 401, and the spring 404 keeps the telescopic head 405 in contact with the anti-fall tooth 401. Specifically, the top of the fixed baffle 203 is fixedly provided with an electric push rod 402, and the output end of the electric push rod 402 is fixedly connected to the guide rod 403. The end of the guide rod 403 is provided with a telescopic head 405 that can move left and right. A spring 404 is sleeved on the guide rod 403, with one end of the spring 404 abutting against the guide rod 403 and the other end of the spring 404 abutting against the telescopic head 405.

[0087] The edge of the column 303 is evenly provided with anti-fall teeth 401 that cooperate with the telescopic head 405. The upper end of the anti-fall teeth 401 is a horizontal edge, the lower end of the anti-fall teeth 401 is an inclined edge, and the end of the telescopic head 405 is arc-shaped.

[0088] When the maintenance platform 2 is in the upward phase, the electric push rod 402 pushes the telescopic head 405 close to the anti-fall tooth 401. When the inclined edge of the lower end of the anti-fall tooth 401 contacts the arc head of the telescopic head 405, the telescopic head 405 retracts under the guidance of the inclined edge of the anti-fall tooth 401, and at the same time compresses the spring 404. When the telescopic head 405 passes the lower end of the anti-fall tooth 401 and contacts the horizontal edge of the upper end of the anti-fall tooth 401, the telescopic head 405 pops out again under the elastic force of the spring 404, so that the anti-fall tooth 401 will not obstruct the upward movement of the maintenance platform 2.

[0089] If the maintenance platform 2 falls unexpectedly at this time, the horizontal edge at the upper end of the anti-fall tooth 401 will abut against the telescopic head 405 in the pop-up state, thereby locking the maintenance platform 2 and preventing it from falling further, thus playing a role in anti-fall protection.

[0090] When the maintenance platform 2 descends, the electric push rod 402 pulls the guide rod 403, causing the telescopic head 405 to move away from the anti-fall tooth 401. When the maintenance platform 2 is in the downward phase, the electric push rod 402 pushes the telescopic head 405 away from the anti-fall tooth 401, so that the telescopic head 405 no longer contacts the anti-fall tooth 401, thus ensuring that the anti-fall tooth 401 will not obstruct the downward movement of the maintenance platform 2.

[0091] When the maintenance platform 2 is raised or lowered, the guide wheels 205 roll along the slide rail 206 to limit the back-and-forth swaying of the maintenance platform 2. An installation block 204 is fixedly installed on the outer side of the side baffle 202 of the maintenance platform 2, and a guide wheel 205 is rotatably installed on the installation block 204. A slide rail 206 is fixedly installed on the inner side of the upright plate 102, and the guide wheel 205 is embedded in the slide rail 206.

[0092] When the maintenance platform 2 is raised or lowered, the guide wheel 205 rolls along the slide rail 206. Through the cooperation between the guide wheel 205 and the slide rail 206, the maintenance platform 2 can be effectively guided to rise and fall along the predetermined trajectory, avoiding left and right swaying of the maintenance platform 2 during the raising and lowering process, and ensuring the accuracy and stability of the movement of the maintenance platform 2.

[0093] The above embodiments are provided to enable those skilled in the art to understand and apply this application. Those skilled in the art will readily make various modifications to the above embodiments and apply the general principles described herein to other embodiments without inventive effort. Therefore, this application is not limited to the above embodiments, and any improvements and modifications made to this application based on the disclosure thereof should be within the scope of protection of this application.

Claims

1. A substation inspection and maintenance auxiliary device, characterized in that, include: The maintenance platform has a notch at its rear end and a fixed baffle at its rear end. The shape of the fixed baffle is adapted to the notch. The fixed baffle has a first fixing hole. The maintenance platform is equipped with two first winches. A hoisting platform, wherein a lifting ring is fixedly installed on the hoisting platform, and a second fixing hole is opened on the hoisting platform, and the hoisting platform is embedded into the maintenance platform through the notch; A fixing pin is provided, which can be detachably inserted into the first fixing hole and the second fixing hole to rigidly connect the hoisting platform to the fixing baffle. The second winch is connected to the lifting ring via a wire rope. The second winch drives the lifting platform to rise and fall via the wire rope and the lifting ring. The lifting platform drives the rear center of the maintenance platform to rise and fall via the fixing pin and the fixing baffle, forming a three-point support together with the two first winches.

2. The apparatus according to claim 1, characterized in that, An electric push rod is fixedly installed at the top of the fixed baffle. A guide rod is fixedly connected to the output end of the electric push rod. A telescopic head is provided at the end of the guide rod that can move left and right. A spring is sleeved on the guide rod. One end of the spring abuts against the guide rod, and the other end of the spring abuts against the telescopic head. The device also includes a column. Anti-fall teeth that cooperate with the telescopic head are evenly arranged on the column.

3. The apparatus according to claim 2, characterized in that, The upper end of the anti-fall tooth is a horizontal edge, and the lower end of the anti-fall tooth is an inclined edge.

4. The apparatus according to claim 2, characterized in that, The end of the telescopic head is arc-shaped.

5. The apparatus according to claim 1, characterized in that, The maintenance platform has a mounting block fixedly installed on the outer side of the side baffle, and a guide wheel is rotatably installed on the mounting block; the device also includes a vertical plate, and a slide rail is fixedly installed on the inner side of the vertical plate, with the guide wheel embedded in the slide rail.

6. The apparatus according to claim 1, characterized in that, The hoisting platform is fixedly equipped with a T-shaped slider on its back; the device also includes a column, the front end of which is provided with a groove, and the T-shaped slider is embedded in the groove.

7. The apparatus according to claim 1, characterized in that, The two first winches are operated synchronously through electrical control.

8. An operation method for a substation inspection and maintenance auxiliary device, characterized in that, The method for operating the apparatus according to any one of claims 1 to 7 includes: Insert the fixing pin into the first fixing hole and the second fixing hole to rigidly connect the hoisting platform with the fixing baffle; The wire rope is wound up and unwound by the second winch, and the bottom end of the wire rope is fixedly connected to the lifting ring. The wire rope drives the lifting platform to rise and fall through the lifting ring. The hoisting platform drives the rear center of the maintenance platform to rise and fall through the fixed pin and the fixed baffle, forming a three-point support together with the two first winches.

9. The method according to claim 8, characterized in that, The device further includes a column, on which anti-fall teeth are evenly arranged; an electric push rod is fixedly installed at the top of the fixed baffle, and a guide rod is fixedly connected to the output end of the electric push rod. A telescopic head is provided at the end of the guide rod, which is movably positioned left and right. A spring is sleeved on the guide rod, with one end of the spring abutting against the guide rod and the other end of the spring abutting against the telescopic head. The method further includes: When the maintenance platform rises, the electric push rod pushes the guide rod, causing the telescopic head to approach the anti-fall tooth. The telescopic head slides along the inclined edge of the anti-fall tooth, and the spring maintains the contact between the telescopic head and the anti-fall tooth. When the maintenance platform descends, the electric push rod pulls the guide rod, causing the telescopic head to move away from the anti-fall tooth.

10. The method according to claim 8, characterized in that, The maintenance platform has a mounting block fixedly installed on the outer side of its side baffle, and a guide wheel rotatably mounted on the mounting block; the device also includes a vertical plate, and a slide rail is fixedly installed on the inner side of the vertical plate, with the guide wheel embedded in the slide rail; the method further includes: When the maintenance platform is raised or lowered, the guide wheels roll along the slide rail to limit the forward and backward swaying of the maintenance platform.

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