Converter maintenance platform

Abstract

The invention discloses a converter overhauling platform, and relates to the technical field of overhauling platforms. The structure of a converter overhauling platform in the prior art is optimized and improved, a fixed platform is arranged, a movable platform is arranged on the top of the fixed platform, and a flexible ladder-shaped tool and spare part carrier is arranged on one side of the movable platform; required tools and spare parts are efficiently and conveniently conveyed to an operation area by controlling the moving mode of the rope-ladder-shaped carriers of the tools and the spare parts. The converter maintenance platform has the technical effects of convenience in use, no need of frequently getting up and down a working surface to take spare parts and tools, lower labor intensity in the use process and better auxiliary effect.

Description

Technical Field

[0001] This invention relates to the field of maintenance platform technology, and more particularly to a converter maintenance platform. Background Technology

[0002] During monthly scheduled maintenance and major overhauls of the converter (maintaining the support ring, skirt plate, furnace mouth flange, and partial doghouse plate), it is necessary to apply for the assistance of a truck crane and aerial work platform each time, or to temporarily erect scaffolding near the converter to allow maintenance personnel to reach the work surface. Using a truck crane and aerial work platform for each operation is costly; using temporary scaffolding is too cumbersome. In the event of a sudden converter failure, it is difficult to quickly organize and deploy the above two methods for auxiliary maintenance, resulting in low repair efficiency.

[0003] To address the aforementioned issues, an alternative solution has been proposed in the prior art: a mobile maintenance platform to replace scaffolding. When maintenance and repair work is required, the maintenance platform can be moved to a location closer to the converter to facilitate the maintenance and repair work. However, since the working surface of the movable maintenance platform is generally small and high, it usually requires manual climbing to reach the working surface. The spare parts and tools used in the maintenance and repair process are numerous, varied and heavy. In most cases, the operators need to frequently go up and down the working surface to retrieve tools and spare parts. The process is tedious, labor-intensive and dangerous, and it will also slow down the work progress.

[0004] Therefore, there is a need for a converter maintenance platform that is easy to use, does not require frequent access to spare parts and tools, has low labor intensity, provides good auxiliary effects, and has high work efficiency. Summary of the Invention

[0005] This application provides a converter maintenance platform, which solves the technical problems of existing converter maintenance platforms, such as inconvenience in use, the need for frequent up-and-down movement to retrieve spare parts and tools, high labor intensity and danger during use, and slow work progress. It achieves the technical effects of convenient use of the converter maintenance platform, no need for frequent up-and-down movement to retrieve spare parts and tools, low labor intensity during use, and good auxiliary effect.

[0006] This application provides a converter maintenance platform, including a base platform, a mobile platform assembly, and a component support assembly; The basic platform is a fixed platform, set close to the outer wall of the converter; The mobile platform components are placed on top of the base platform and carry people to move on the base platform as needed, including a base platform, a vertical frame and a lifting platform; The base is a horizontally placed rigid block with multiple casters at the bottom; The vertical frame is a vertically arranged pole-shaped frame with a height of more than 3 meters. There are multiple such frames, all located near the top edge of the base platform. The lifting plate is a horizontally placed rigid plate that is slidably positioned on a vertical frame and can be raised and lowered along the vertical direction. The carrier platform assembly is located on one side of the mobile platform assembly and is used to carry tools and spare parts and drive the lifting plate to move up and down.

[0007] Furthermore, the basic platform includes a base frame, a top plate, and an inclined ladder; The base frame is a frame structure, positioned on the ground, and serves to support the top plate. The top plate is a horizontally placed rigid plate, fixed to the top of the base frame, and assembled to form a platform.

[0008] Furthermore, the carrier platform assembly includes a base platform, a vertical telescopic body, a top connecting rod, a reversing wheel, a hanging rope ladder assembly, and a rope ladder pulling assembly; The base platform is a horizontally placed rigid block with a walking system at the bottom; The vertical telescopic body is a rigid telescopic rod installed vertically, and there are two of them. The bottom of each rod is fixed to the top of the base platform, which plays the role of driving the lifting plate to rise and fall. The top connecting rod is a horizontal rigid rod that is fixed to the top of the two vertical telescopic bodies; The reversing wheel is a horizontally placed cylindrical wheel body, which serves to support the hanging rope ladder assembly and guide the movement of the hanging rope ladder assembly. There are two of them, which are rotatably connected to the opposite surfaces of the two vertical telescopic bodies near the top. The hanging rope ladder assembly is used to carry tools and spare parts. It is shaped like a rope ladder, is hung on the reversing wheel, and is moved in a controlled manner.

[0009] Furthermore, the hanging ladder assembly includes two support bars, support bars positioned on the support bars and arranged in a row, multiple horizontal bars, and also includes a hanging plate and a hanging container positioned on the horizontal bars for carrying positioning tools and spare parts. Two support bars are respectively hung on the two reversing wheels and are arranged symmetrically; The carrier rod is a rigid block that is fixed to the carrier rod strip; The two ends of the horizontal bar are respectively fixed to two carrier bars located on two carrier bars; The hanging plate is a vertical rigid plate that fits onto a horizontal bar near the top. The hanging container is a rigid container with an open top, which is fitted onto the horizontal bar near the top. Tools and spare parts are positioned on the mounting plate and in the hanging container; The rope ladder pulling component is used to pull the hanging rope ladder component to move.

[0010] Preferably, the rope ladder pulling assembly is a winch structure, including a winch and a winch rope; the winch is fixed on the base platform, and the end of the winch rope is positioned at one end of the rope ladder assembly; when the winch rotates, the rope ladder pulling assembly carries tools and spare parts to move them, and moves the tools and spare parts needed to be used to the position of the workers near the lifting platform as needed.

[0011] Preferably, the vertical telescopic body includes a fixed part and a movable part. The fixed part is fixed on the base platform, and the movable part is located on top of the fixed part. The fixed part is fixed on the bottom platform, and the movable part is fixed on one side of the lifting plate. The top connecting rod is always at least 60 cm higher than the lifting plate. When the vertical telescopic body extends or retracts, it drives the lifting plate to rise or fall.

[0012] Preferably, the support bar is a chain, and the end of it away from the rope ladder pulling assembly is fixed to the base platform by an elastic rope or tension spring.

[0013] Preferably, the top of the lifting plate is slidably positioned by a top sliding plate; the top sliding plate is a horizontally placed rigid plate that slides manually or electrically, and the sliding direction is the same as the width direction of the base platform; when it is necessary to work close to the outer wall of the converter, the operator is moved by controlling the sliding of the top sliding plate.

[0014] Preferably, the horizontal bar is detachably and fixedly connected to the carrier body; The bottom of the hanging container is equipped with multiple casters; During use, slide the top sliding plate to the bottom of the hanging container as needed and remove the horizontal bar containing the hanging container from the carrier body. During operation, push the hanging container to move flexibly on the top sliding plate to facilitate the operation.

[0015] Preferably, the vertical telescopic body further includes an assembly; Both ends of the top connecting rod are provided with end pins; The basic platform is also equipped with an entrance and a top support frame. The carrier platform assembly is positioned on the mobile platform assembly via the assembly; The end pin is an electric pin, and its axis is in the same direction as the length of the top connecting rod; The inlet is located on the top plate; A rigid cover plate is placed on the base platform to cover and seal the entrance. The top support is a vertical rigid frame, and there are two of them. The two top supports are symmetrically arranged and located near the entrance. The top is provided with a pin hole that matches the end pin.

[0016] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages: By optimizing and improving the structure of existing converter maintenance platforms, a fixed platform is set up, with a movable platform on top of the fixed platform. A ladder-like carrier for tools and spare parts is set up on one side of the movable platform. By controlling the movement of the ladder-like carrier, the required tools and spare parts can be efficiently and conveniently delivered to the work area. This effectively solves the technical problems of existing converter maintenance platforms, such as inconvenience in use, the need for frequent up-and-down movement to retrieve spare parts and tools, high labor intensity and danger during use, and slow work progress. As a result, the converter maintenance platform achieves the technical effects of convenient use, no need for frequent up-and-down movement to retrieve spare parts and tools, lower labor intensity during use, and better auxiliary effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the converter maintenance platform in this application; Figure 2 A schematic diagram showing the positional relationship between the carrier platform assembly and the mobile platform assembly; Figure 3 This is a schematic diagram showing the positional relationship between the lifting plate and the top sliding plate; Figure 4 This is a structural schematic diagram of the carrier support assembly; Figure 5 This is a schematic diagram of the structure of the hanging rope ladder assembly; Figure 6 This is a schematic diagram showing the layout of the entry points on the basic platform; Figure 7 This is a schematic diagram showing the state of the carrier platform assembly when it passes through the entry point on the base platform.

[0018] In the picture: The components include: a base platform 100, a base frame 110, a top plate 120, an entrance 121, an inclined ladder 130, a top support frame 140, pin holes 141, a base platform 210, a vertical frame 220, a lifting plate 230, a guardrail 231, a top sliding plate 240, a base platform 310, a vertical telescopic body 320, a top connecting rod 330, an end pin 331, a combined body 340, a reversing wheel 350, a support bar 361, a support bar body 362, a horizontal bar 363, a hanging plate 364, a hanging container 365, and a rope ladder pulling assembly 370. Detailed Implementation

[0019] To facilitate understanding of the present invention, a more complete description of this application will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to enable a more thorough and complete understanding of the disclosure of the present invention.

[0020] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] Example 1

[0023] like Figures 1 to 5 As shown, the converter maintenance platform of this application includes a basic platform 100, a mobile platform assembly, and a carrier support assembly.

[0024] The base platform 100 is a fixed platform with an arc-shaped section near the converter. It is set close to the outer wall of the converter and has a height of 2 to 3.5 meters. It is used to provide a stable working surface for the mobile platform component and to enable the mobile platform component to work closer to the outer wall of the converter (because the outer wall of the converter is sloping, if the mobile platform component does not use the base platform 100 but moves directly on the ground, the working surface of the mobile platform component will be far away from the outer wall of the converter, which will affect the efficiency of the operation).

[0025] Furthermore, the basic platform 100 includes a base frame 110, a top plate 120, and an inclined ladder 130; the base frame 110 is a frame structure, positioned on the ground, and serves to support the top plate 120; the top plate 120 is a horizontally placed rigid plate, fixed to the top of the base frame 110, and assembled to form a platform; the inclined ladder 130 is an inclined staircase, used by workers to access the top of the top plate 120 from the ground.

[0026] like Figure 2 As shown, the mobile platform component is placed on top of the base platform 100 and allows people to move on the base platform 100 as needed. It includes a base platform 210, a vertical frame 220, and a lifting platform 230. The base platform 210 is a horizontally placed rigid block with multiple casters at the bottom, which serve as a load-bearing support and also as a counterweight. The vertical frame 220 is a vertically arranged rod-shaped frame with a height of more than 3 meters. There are multiple vertical frames, preferably four, which are all arranged near the top edge of the base 210. The multiple vertical frames 220 are parallel to each other. The lifting plate 230 is a horizontally placed rigid plate used to provide a foothold for workers. It is slidably positioned on the vertical frame 220 and can be raised and lowered in the vertical direction.

[0027] Preferably, the edge of the lifting plate 230 is provided with a guardrail 231; the guardrail 231 is made of metal or non-metal.

[0028] like Figure 4 As shown, the carrier platform assembly is located on one side of the mobile platform assembly and is used to carry tools and spare parts and drive the lifting plate 230 to move up and down. It includes a base platform 310, a vertical telescopic body 320, a top connecting rod 330, a reversing wheel 350, a hanging rope ladder assembly, and a rope ladder pulling assembly 370. The base platform 310 is a horizontally placed rigid block that serves as a load-bearing and supporting structure, and is equipped with a walking system at its bottom. The walking system is a wheeled walking system that can be remotely controlled and travel in multiple directions. It is existing technology and will not be described in detail here. The vertical telescopic body 320 is a vertically arranged rigid telescopic rod, preferably a multi-stage telescopic rod, which is controlled to extend and retract. There are two of them, which are parallel to each other and are both fixed to the top of the base platform 310. The distance between them is greater than 30 cm. The top connecting rod 330 is a horizontal rigid rod that serves as a connecting and supporting element. It is fixed to the top of the two vertical telescopic bodies 320, and its length direction is perpendicular to the axis of the vertical telescopic body 320. The reversing wheel 350 is a horizontally placed cylindrical wheel body, which serves to support the hanging rope ladder assembly and also serves to guide the movement of the hanging rope ladder assembly. There are two of them, and their axial direction is the same as the length direction of the top connecting rod 330. They are rotatably connected to the two vertical telescopic bodies 320 on the opposite surfaces near the top. like Figure 5 As shown, the hanging ladder assembly is used to carry tools and spare parts. It is in the shape of a rope ladder and includes two support bars 361, support bar bodies 362 positioned on the support bars 361 and arranged in a row, multiple horizontal bars 363, and also includes a hanging plate 364 and a hanging container 365 positioned on the horizontal bars 363 for carrying and positioning tools and spare parts. The carrier bar 361 is a rubber strip or a metal chain, with a length of less than 4 meters; the two carrier bars 361 are respectively hung on the two reversing wheels 350 and are arranged symmetrically. The carrier rod 362 is a rigid block, fixed on the carrier rod 361, with a spacing of more than 30 centimeters between them; The horizontal bar 363 is a rigid bar arranged horizontally, with both ends fixed to two load bars 362 located on two load bars 361, and is always in a horizontal state; The hanging plate 364 is a vertical rigid plate that fits onto the horizontal bar 363 near the top and can rotate relative to the horizontal bar 363; tools and spare parts are detachably fixed to the hanging plate 364. The hanging container 365 is a rigid container with an open top, which is fitted onto the horizontal bar 363 near the top and can rotate relative to the horizontal bar 363; tools and spare parts are stored in the hanging container 365. The number of hanging plates 364 and hanging containers 365 is one or more, and they are located on different horizontal bars 363; The rope ladder pulling assembly 370 is used to pull the hanging rope ladder assembly to move. It is a winch structure, including a winch and a winch rope. The winch is fixed on the base platform 310, and the end of the winch rope is positioned at one end of the hanging rope ladder assembly. When the winch rotates, the rope ladder pulling assembly 370 carries the tools and spare parts to move them, and moves the tools and spare parts needed to the position of the workers near the lifting platform 230 as needed.

[0029] The vertical telescopic body 320 includes a fixed part and a movable part. The fixed part is fixed on the base platform 310, and the movable part is located on top of the fixed part. The fixed part is fixed on the base platform 210, and the movable part is fixed on one side of the lifting plate 230. The top connecting rod 330 is always at least 60 cm higher than the lifting plate 230. When the vertical telescopic body 320 extends or retracts, it drives the lifting plate 230 to rise or fall.

[0030] When performing inspection and maintenance work, the workers climb onto the base platform 100 and then onto the mobile platform component to carry out the work; the carrier platform component operates in a timely manner, causing the base platform 210 to move and the lifting plate 230 to rise and fall, so that the workers can reach the new work position; during this period, by controlling the operation of the rope ladder pulling component 370, the tools and spare parts needed are moved to the vicinity of the workers on the lifting plate 230 for easy access.

[0031] Preferably, the reversing wheel 350 is provided with a ring of protrusions, and the carrier bar 361 is provided with a row of holes that are adapted to the protrusions on the reversing wheel 350.

[0032] Preferably, the support bar 361 is a chain, and the end of it away from the rope ladder pulling assembly 370 is fixed to the base platform 310 by an elastic rope or tension spring.

[0033] Preferably, in order to further improve the safety of the operation process, the vertical frame 220 is provided with a row of positioning holes, and the top sliding plate 240 is provided with at least one electric pin near the positioning hole; when the lifting plate 230 is stationary, it is ensured that an electric pin is inserted into the positioning hole to restrict the movement of the lifting plate 230.

[0034] Preferably, the top of the lifting plate 230 is slidably positioned by a top sliding plate 240; the top sliding plate 240 is a horizontally placed rigid plate that slides manually or electrically, and the sliding direction is the same as the width direction of the base platform 310; when it is necessary to work close to the outer wall of the converter, the operator is moved by controlling the top sliding plate 240 to slide; this makes the operation more flexible and convenient, and greatly speeds up the inspection and maintenance process.

[0035] Preferably, when one end of the hanging ladder assembly is close to the reversing wheel 350, the tools and spare parts it carries are located on the same side of the hanging plate 364, so as to ensure that the tools and spare parts carried by the hanging ladder assembly are not prone to collision when the hanging ladder assembly moves.

[0036] Preferably, the horizontal bar 363 is detachably and fixedly connected to the carrier bar 362; the bottom of the hanging container 365 is provided with multiple casters; during use, the top sliding plate 240 can be slid to the bottom of the hanging container 365 as needed, and the horizontal bar 363, where the hanging container 365 is located at the top of the top sliding plate 240, can be removed from the carrier bar 362; during operation, the hanging container 365 can be pushed to move flexibly on the top sliding plate 240 to facilitate the operation.

[0037] The technical solutions described in the embodiments of this application have at least the following technical effects or advantages: This invention solves the technical problems of existing converter maintenance platforms, such as inconvenience in use, the need for frequent access to the work surface to retrieve spare parts and tools, high labor intensity and danger during use, and slow work progress. It achieves the technical benefits of a convenient converter maintenance platform that eliminates the need for frequent access to the work surface to retrieve spare parts and tools, reduces labor intensity during use, and provides better auxiliary effects.

[0038] Example 2

[0039] To reduce operating costs and enable a single component support assembly to be used for the inspection and maintenance of multiple converters, while facilitating the movement of tools and spare parts up and down the base platform 100, this embodiment adds a combined body 340 to the vertical telescopic body 320, adds end pins 331 to both ends of the top connecting rod 330, and adds an inlet 121 and a top support 140 to the base platform 100. This allows the component support assembly to move efficiently and conveniently up and down the base platform 100, specifically as follows: like Figure 6 and Figure 7 As shown, the carrier platform assembly is positioned on the mobile platform assembly via assembly 340; assembly 340 is an electric or manual latch. The end pin 331 is an electric pin, with its axis in the same direction as the length of the top connecting rod 330, and it protrudes from the end face of the top connecting rod 330 under control. The inlet 121 is located on the top plate 120 and is used to allow the carrier support assembly to go up and down the base platform 100. A rigid cover plate is placed on the base platform 100 to cover and seal the entrance 121; The top support 140 is a vertical rigid frame, and there are two of them. The two top supports 140 are symmetrically arranged and located near the inlet 121. The top is provided with a pin hole 141 that matches the end pin 331.

[0040] When the carrier platform assembly carrying tools and spare parts needs to be moved onto the base platform 100, the carrier platform assembly is controlled to move directly below the base platform 100, and then extends out from the inlet 121. When the end pin 331 is at the same height as the pin hole 141, the end pin 331 is controlled to insert into the pin hole 141. At this time, the vertical telescopic body 320 is controlled to retract, so that the entire carrier platform assembly moves to the top of the base platform 100. A rigid cover plate is covered on the inlet 121, and the carrier platform assembly is controlled to fall on the rigid cover plate and retract the end pin 331. When it is necessary to move the carrier platform assembly carrying tools and spare parts down to the base platform 100, cover the inlet 121 with a rigid cover plate; move the carrier platform assembly between the two top supports 140, and when the end pin 331 is at the same height as the pin hole 141, control the end pin 331 to insert into the pin hole 141; control the vertical telescopic body 320 to retract, so that the carrier platform assembly moves upward as a whole; remove the rigid cover plate; control the carrier platform assembly to extend and land; control the carrier platform assembly to retract the end pin 331 and retract; finally control the carrier platform assembly to move out of the bottom of the base platform 100.

[0041] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A converter maintenance platform, characterized in that: Includes a base platform (100), a mobile platform component, and a carrier platform component; The basic platform (100) is a fixed platform, which is set close to the outer wall of the converter; The mobile platform component is placed on top of the base platform (100) and allows people to move on the base platform (100) as needed. It includes a base (210), a vertical frame (220), and a lifting platform (230). The base (210) is a horizontally placed rigid block with multiple casters at the bottom; The vertical frame (220) is a vertically arranged rod-shaped frame with a height of more than 3 meters. There are multiple such frames, all of which are located near the top edge of the base (210). The lifting plate (230) is a horizontally placed rigid plate that is slidably positioned on the vertical frame (220) and can be raised and lowered in the vertical direction. The carrier platform assembly is located on one side of the mobile platform assembly and is used to carry tools and spare parts and drive the lifting plate (230) to move up and down.

2. The converter maintenance platform as described in claim 1, characterized in that: The basic platform (100) includes a base frame (110), a top plate (120), and an inclined ladder (130); The base frame (110) is a frame structure, positioned on the ground, and serves to support the top plate (120). The top plate (120) is a horizontally placed rigid plate, fixed to the top of the base frame (110), and assembled into a platform.

3. The converter maintenance platform as described in claim 1, characterized in that: The carrier platform assembly includes a base platform (310), a vertical telescopic body (320), a top connecting rod (330), a reversing wheel (350), a hanging rope ladder assembly, and a rope ladder pulling assembly (370); The base platform (310) is a horizontally placed rigid block with a walking system at the bottom; The vertical telescopic body (320) is a rigid telescopic rod set vertically. There are two of them, and the bottom of each is fixed to the top of the base platform (310), which plays the role of driving the lifting plate (230) to rise and fall. The top connecting rod (330) is a horizontal rigid rod that is fixed to the top of the two vertical telescopic bodies (320); The reversing wheel (350) is a horizontal cylindrical wheel body, which serves to support the hanging rope ladder assembly and guide the movement of the hanging rope ladder assembly. There are two of them, which are rotatably connected to the opposite surfaces of the two vertical telescopic bodies (320) near the top. The hanging ladder assembly is used to carry tools and spare parts. It is shaped like a ladder and is hung on the reversing wheel (350) for controlled movement.

4. The converter maintenance platform as described in claim 3, characterized in that: The hanging ladder assembly includes two support bars (361), a support bar body (362) positioned on the support bars (361) and arranged in a row, multiple horizontal bars (363), and also includes a hanging plate (364) and a hanging container (365) positioned on the horizontal bars (363) for carrying positioning tools and spare parts. Two support bars (361) are respectively hung on two reversing wheels (350) and are arranged symmetrically; The carrier rod (362) is a rigid block and is fixed on the carrier rod (361); The two ends of the horizontal bar (363) are respectively fixed to the two support rods (362) located on the two support rods (361); The hanging plate (364) is a vertical rigid plate, which is fitted onto the horizontal bar (363) near the top. The hanging container (365) is a rigid container with an open top, which is fitted onto the horizontal bar (363) near the top. Tools and spare parts are positioned on the mounting plate (364) and in the hanging container (365); The rope ladder pulling component (370) is used to pull the hanging rope ladder component to move.

5. The converter maintenance platform as described in claim 4, characterized in that: The rope ladder pulling assembly (370) is a winch structure, including a winch and a winch rope; the winch is fixed on the base platform (310), and the end of the winch rope is positioned at one end of the hanging rope ladder assembly; when the winch rotates, the rope ladder pulling assembly (370) carries tools and spare parts to move, and moves the tools and spare parts needed to the position of the workers close to the lifting platform (230) in a timely manner.

6. The converter maintenance platform as described in claim 4, characterized in that: The vertical telescopic body (320) includes a fixed part and a movable part. The fixed part is fixed on the base platform (310), and the movable part is located on top of the fixed part. The fixed part is fixed on the base platform (210), and the movable part is fixed on one side of the lifting plate (230). The top connecting rod (330) is always at least 60 cm higher than the lifting plate (230). When the vertical telescopic body (320) extends or retracts, it drives the lifting plate (230) to rise or fall.

7. The converter maintenance platform as described in claim 4, characterized in that: The support bar (361) is a chain, and its end away from the rope ladder pulling assembly (370) is fixed to the base platform (310) by an elastic rope or tension spring.

8. The converter maintenance platform as described in claim 4, characterized in that: The top of the lifting plate (230) is slidably positioned by a top sliding plate (240); the top sliding plate (240) is a horizontally placed rigid plate that slides manually or electrically, and the sliding direction is the same as the width direction of the base platform (310); when it is necessary to work close to the outer wall of the converter, the operator is moved by controlling the sliding of the top sliding plate (240).

9. The converter maintenance platform as described in claim 8, characterized in that: The horizontal bar (363) is detachably and fixedly connected to the carrier bar (362); The bottom of the hanging container (365) is equipped with multiple casters; During use, the top sliding plate (240) is slid to the bottom of the hanging container (365) as needed, and the horizontal bar (363) where the hanging container (365) is located at the top of the top sliding plate (240) is removed from the carrier bar (362); during operation, the hanging container (365) is pushed to move flexibly on the top sliding plate (240) so that the operation can be carried out.

10. The converter maintenance platform as described in any one of claims 4 to 9, characterized in that: The vertical telescopic body (320) also includes a combined body (340); Both ends of the top connecting rod (330) are provided with end pins (331); The base platform (100) is also provided with an entrance (121) and a top support frame (140); The carrier platform assembly is positioned on the mobile platform assembly via the assembly (340); The end pin (331) is an electric pin, and its axis is in the same direction as the length of the top connecting rod (330); The inlet (121) is located on the top plate (120); A rigid cover plate is placed on the base platform (100) to cover and seal the entrance (121); The top support (140) is a vertical rigid frame, and there are two of them. The two top supports (140) are symmetrically arranged and located near the entrance (121). The top is provided with a pin hole (141) that matches the end pin (331).

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