High-altitude maintenance platform

Abstract

The invention relates to the technical field of maintenance platforms, and discloses a high-altitude maintenance platform which comprises a movable base, a fixed sleeve plate fixedly connected to the top of the movable base, a first lifting plate slidably connected to the interior of the fixed sleeve plate, a second lifting plate slidably connected to the interior of the first lifting plate, a lifting frame fixedly connected to the side wall of the second lifting plate, and a driving part, the driving part is mounted on the movable base; the supporting part is arranged at the corner of the movable base; through the arrangement of an expansion plate, a threaded rod and a supporting disc, the movable base is lifted, the movable wheels of the movable base are made to break away from the ground, the supporting area is enlarged, the overturning risk is reduced, the overall stability of the equipment is ensured, and in the process of winding a pull belt to lift a lifting frame, by means of the arrangement of an air guide box, an air guide plate, a push rod and an arc-shaped plate, the lifting frame can be lifted more stably. And the air pressure in the supporting disc can be reduced, the connecting strength between the supporting disc and the ground is improved, and then the overall stability of the movable base is enhanced.

Description

Technical Field

[0001] This invention relates to the field of maintenance platform technology, specifically a high-altitude maintenance platform. Background Technology

[0002] The wastewater treatment plant is constructed in a semi-underground manner. Except for the wastewater inlet pipe and the wastewater transfer pipes at each stage, all other pipes are installed on an elevated basis. Therefore, a maintenance platform that can be easily moved, is stable in one location, and allows maintenance personnel to stand safely and move up and down needs to be designed.

[0003] Currently, most common self-propelled aerial maintenance platforms adopt a chassis structure with wheels to achieve flexible relocation between sites. However, this design has significant drawbacks in actual operation: when the platform is raised to a height, it relies solely on the tires for contact with the ground, resulting in a small support area and high ground pressure. This makes it prone to slippage, sinking, or tipping over on soft, sloping, or smooth surfaces. Although some equipment is equipped with manual or hydraulic outriggers to expand the support area, these cannot actively enhance the adhesion or connection strength with the ground, and there is still a risk of instability under sudden gusts of wind or dynamic loads. Therefore, a new type of aerial maintenance platform is proposed. Summary of the Invention

[0004] This invention provides a high-altitude maintenance platform that, through the arrangement of an extension plate, threaded rod, and support plate, raises the mobile base, causing its moving wheels to detach from the ground and expanding the support area, reducing the risk of overturning and ensuring the overall stability of the equipment. Furthermore, during the process of raising the lifting frame using the winding belt, the use of air guide boxes, air guide plates, push rods, and arc-shaped plates reduces the air pressure inside the support plate, increasing the connection strength between the support plate and the ground. This solves the problem mentioned in the background art that traditional extended support structures cannot actively enhance the adhesion or connection strength with the ground, and still have the potential for instability under sudden gusts of wind or dynamic loads.

[0005] This invention provides the following technical solution:

[0006] A high-altitude maintenance platform includes a mobile base, a fixed sleeve plate fixedly connected to the top of the mobile base, a first lifting plate slidably connected inside the fixed sleeve plate, a second lifting plate slidably connected inside the first lifting plate, and a lifting frame fixedly connected to the side wall of the second lifting plate. The platform also includes: a drive unit mounted on the mobile base, used to drive the first and second lifting plates to rise; and four support units located at the corners of the mobile base, used to provide stable support during the lifting frame's ascent and to prevent the mobile base from sliding.

[0007] As a preferred embodiment of the present invention, the driving unit includes a dual-axis motor, which is fixedly connected to the top of the movable base. First rotating wheels are rotatably connected to both sides of the upper inner wall of the fixed sleeve plate, and second rotating wheels are rotatably connected to both sides of the lower inner wall of the fixed sleeve plate. Third rotating wheels are rotatably connected to both sides of the upper inner wall of the first lifting plate. Guide grooves are provided on both sides of the lower inner wall of the first lifting plate, and guide wheels are rotatably connected within the guide grooves. Rewind reels are fixedly connected to both output ends of the dual-axis motor. Limiting guide grooves are provided on both sides of the top of the movable base, and steering wheels are rotatably connected to both ends of the inner cavity of the limiting guide grooves.

[0008] As a preferred embodiment of the present invention, a pull belt is wound and fixed inside both sets of winding reels, and the other end of the pull belt passes through the corresponding two sets of steering wheels, the second wheel, the first wheel, the guide groove and the third wheel in sequence and is fixed to the bottom of the side wall of the second lifting plate.

[0009] As a preferred embodiment of the present invention, a first limiting plate is fixedly connected to the top of the inner wall of the fixed sleeve plate, a second limiting plate is fixedly connected to the top of the inner wall of the first lifting plate, a third limiting plate is fixedly connected to the bottom of the outer wall of the first lifting plate near the fixed sleeve plate, and a fourth limiting plate is fixedly connected to the bottom of the outer wall of the second lifting plate near the first lifting plate. The first limiting plate and the third limiting plate are aligned vertically, and the second limiting plate and the fourth limiting plate are aligned vertically.

[0010] As a preferred embodiment of the present invention, piston boxes are fixedly connected to both sides of the inner wall of the fixed sleeve plate, a piston plate is slidably connected inside the piston box, a push-pull rod is rotatably connected to the top of the piston plate, a turntable is fixedly connected to the shaft end of the first rotating wheel near the piston box, the other end of the push-pull rod is rotatably connected to the side wall of the turntable, a liquid storage box is fixedly connected to the side wall of the piston box, the liquid storage box is located at the bottom of the first rotating wheel, the bottom of the piston box is fixed and connected to an exhaust pipe, the other end of the exhaust pipe extends through to below the liquid surface in the liquid storage box, and a one-way valve is provided in the exhaust pipe.

[0011] As a preferred embodiment of the present invention, both sides of the fixed sleeve plate are fixedly connected with suction pipes, the other end of the suction pipes is connected to the inner cavity of the corresponding piston box, and a one-way valve is provided in the suction pipe.

[0012] As a preferred embodiment of the present invention, the top opening of the liquid storage box is inclined to both sides and fits against the pull strap.

[0013] As a preferred embodiment of the present invention, the support includes a storage compartment, which is fixedly connected to the side wall of the movable base. An extension plate is rotatably connected inside the storage compartment, and a threaded rod is rotatably connected to the other end of the extension plate. A support plate is fixedly connected to the bottom end of the threaded rod.

[0014] As a preferred embodiment of the present invention, a limiting sleeve is fixedly connected to the top of the movable base, and the limiting sleeve is located directly below the lifting frame. Air guide boxes are fixedly connected to both sides of the inner wall of the limiting sleeve. An air guide plate is slidably connected inside the air guide box. A return spring is fixedly connected between the side wall of the air guide plate and the inner wall of the air guide box. A push rod is fixedly connected to the other side of the air guide plate. The other end of the push rod passes through the air guide box and is fixedly connected to an arc-shaped plate. The side wall of the arc-shaped plate is in contact with the pull strap wound in the take-up reel. An air guide groove is opened in the extension plate. An air guide hose is fixedly connected to and communicates with the inner cavity of the support plate. An air guide pipe is fixedly connected to and communicates with the side wall of the air guide box. The output end of the air guide pipe is connected to the air guide groove.

[0015] As a preferred embodiment of the present invention, the push rod and the arc plate are provided with an exhaust groove. The input end of the exhaust groove is connected to the air guide box cavity with a reset spring installed, and the output end of the exhaust groove is inclined toward the pull belt.

[0016] Compared with the prior art, the present invention provides a high-altitude maintenance platform, which has the following beneficial effects:

[0017] 1. This high-altitude maintenance platform, through the installation of extension plates, threaded rods, and support plates, raises the mobile base, lifting its wheels off the ground and increasing the support area, reducing the risk of tipping over and ensuring the overall stability of the equipment. Furthermore, during the rewinding and lifting of the lifting frame, the use of air guide boxes, air guide plates, push rods, and arc-shaped plates reduces the air pressure inside the support plate, increasing the connection strength between the support plate and the ground, thereby enhancing the overall stability of the mobile base and ensuring the safety of maintenance work.

[0018] 2. This high-altitude maintenance platform utilizes the friction generated by the pull belt winding along the first rotating wheel to cause the first rotating wheel to rotate. In conjunction with the push-pull rod, piston box, piston plate, and exhaust pipe, the lubricant in the reservoir is sprayed upwards onto the first rotating wheel and the pull belt. This firstly reduces the frictional heat generated between the pull belt and the first rotating wheel by utilizing the flowing airflow, and secondly, it can spray lubricant onto both, reducing the wear of the pull belt during the winding process, thereby improving the service life of the pull belt. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a partial structural diagram of the fixed sleeve plate of the present invention;

[0022] Figure 3 This is a schematic diagram of the internal structure of the fixed sleeve plate of the present invention;

[0023] Figure 4 This is a three-dimensional schematic diagram of a partial cross-sectional structure of the present invention;

[0024] Figure 5 For the present invention Figure 4 Enlarged structural diagram of region A in the middle;

[0025] Figure 6 For the present invention Figure 4 Enlarged structural diagram of region B in the middle;

[0026] Figure 7 For the present invention Figure 4 Enlarged structural diagram of region C in the middle;

[0027] Figure 8 This is a schematic diagram of the internal cross-section of the fixed sleeve plate of the present invention;

[0028] Figure 9 For the present invention Figure 8 A magnified structural diagram of region D in the middle;

[0029] Figure 10 This is a schematic diagram of the internal structure of the expansion board of the present invention;

[0030] Figure 11 This is a schematic diagram of the internal structure of the limiting sleeve of the present invention.

[0031] In the diagram: 1. Movable base; 2. Fixed sleeve plate; 21. First lifting plate; 22. Second lifting plate; 23. Lifting frame; 24. Limiting sleeve; 3. Dual-axis motor; 31. First rotating wheel; 32. Second rotating wheel; 33. Third rotating wheel; 34. Guide groove; 341. Guide wheel; 35. Rewinding reel; 36. Strap; 37. Limiting guide groove; 38. Steering wheel; 4. First limiting plate; 41. Second limiting plate; 42. Third limiting plate; 43. 5. Fourth limiting plate; 6. Piston box; 7. Piston plate; 8. Push-pull rod; 9. Turntable; 10. Liquid storage box; 11. Exhaust pipe; 12. Suction pipe; 13. Storage compartment; 24. Extension plate; 25. Threaded rod; 36. Support plate; 47. Air guide box; 58. Air guide plate; 69. Return spring; 70. Push rod; 71. Arc plate; 72. Air guide groove; 73. Suction hose; 74. Air guide pipe; 8. Exhaust groove; 9. Counterweight step. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Example:

[0034] Reference Figures 1-11 A high-altitude maintenance platform includes a mobile base 1, a fixed sleeve plate 2 fixedly connected to the top of the mobile base 1, a first lifting plate 21 slidably connected inside the fixed sleeve plate 2, a second lifting plate 22 slidably connected inside the first lifting plate 21, a lifting frame 23 fixedly connected to the side wall of the second lifting plate 22, and a counterweight step 9 fixedly connected to the top of the mobile base 1 away from the fixed sleeve plate 2. The counterweight step 9 facilitates employees' access to the lifting frame 23 and increases the counterweight of the mobile base 1, ensuring the stability of the equipment after lifting, thereby improving the safety of maintenance. The platform also includes: a drive unit mounted on the mobile base 1, used to drive the first lifting plate 21 and the second lifting plate 22 to rise; and a support unit, four sets of which are located at the corners of the mobile base 1, used to provide stable support force during the lifting of the lifting frame 23 and to prevent the mobile base 1 from sliding.

[0035] Reference Figure 1 The support includes a storage compartment 6, which is fixedly connected to the side wall of the movable base 1. An extension plate 61 is rotatably connected inside the storage compartment 6. A threaded rod 62 is rotatably connected to the other end of the extension plate 61. A support plate 63 is fixedly connected to the bottom end of the threaded rod 62.

[0036] With the above structure, the mobile base 1 is first pushed to the position where maintenance is needed. Then, the surrounding expansion plates 61 are opened, and each set of threaded rods 62 is rotated in sequence so that the support plate 63 touches the ground. The mobile base 1 is then raised so that the moving wheels at the bottom of the mobile base 1 are lifted off the ground, and the support area is expanded to reduce the risk of tipping over. Then, the surrounding threaded rods 62 are adjusted so that the mobile base 1 is in a horizontal state, thereby ensuring the overall stability of the mobile base 1.

[0037] Reference Figures 1-4 , Figure 6 , Figure 7 and Figure 11 The drive unit includes a dual-axis motor 3, which is fixedly connected to the top of the movable base 1. The upper two sides of the inner wall of the fixed sleeve plate 2 are rotatably connected to the first rotating wheel 31, and the lower two sides of the inner wall of the fixed sleeve plate 2 are rotatably connected to the second rotating wheel 32. The upper two sides of the inner wall of the first lifting plate 21 are rotatably connected to the third rotating wheel 33. The lower two sides of the inner wall of the first lifting plate 21 are provided with guide grooves 34, and guide wheels 341 are rotatably connected in the guide grooves 34. The output ends of the dual-axis motor 3 are fixedly connected to the take-up reels 35. The top two sides of the movable base 1 are provided with limit guide grooves 37, and the two ends of the inner cavity of the limit guide grooves 37 are rotatably connected to the steering wheels 38. The two sets of take-up reels 35 are each wound with a pull belt 36. The other end of the pull belt 36 passes through the corresponding two sets of steering wheels 38, second rotating wheels 32, first rotating wheels 31, guide grooves 34 and third rotating wheels 33 in sequence and is then fixed to the bottom of the side wall of the second lifting plate 22.

[0038] With the above structure, the dual-axis motor 3 is turned on, which drives the take-up reels 35 on both sides to rotate. At this time, the pull belt 36 will wind and reel onto the take-up reel 35 along the third rotating wheel 33, guide groove 34, first rotating wheel 31, second rotating wheel 32 and two sets of steering wheels 38, thereby pulling the first lifting plate 21 and the second lifting plate 22 to raise the lifting frame 23, and finally reach the height required for maintenance, so as to carry out maintenance work.

[0039] Reference Figure 2 , Figure 3 A first limiting plate 4 is fixedly connected to the top of the inner wall of the fixed sleeve plate 2, a second limiting plate 41 is fixedly connected to the top of the inner wall of the first lifting plate 21, a third limiting plate 42 is fixedly connected to the bottom of the outer wall of the first lifting plate 21 near the fixed sleeve plate 2, and a fourth limiting plate 43 is fixedly connected to the bottom of the outer wall of the second lifting plate 22 near the first lifting plate 21. The first limiting plate 4 and the third limiting plate 42 are vertically aligned, and the second limiting plate 41 and the fourth limiting plate 43 are vertically aligned. Through the above structure, the rising height of the first lifting plate 21 and the second lifting plate 22 can be limited to prevent them from falling off the top, thus ensuring the safety of the lifting. At the same time, it can also ensure that the first lifting plate 21 and the second lifting plate 22 can be fully raised.

[0040] Reference Figure 6 , Figure 8 and Figure 9 A piston box 5 is fixedly connected to both sides of the inner wall of the fixed sleeve plate 2. A piston plate 51 is slidably connected inside the piston box 5. A push-pull rod 52 is rotatably connected to the top of the piston plate 51. A turntable 53 is fixedly connected to the end of the shaft of the first rotating wheel 31 near the piston box 5. The other end of the push-pull rod 52 is rotatably connected to the side wall of the turntable 53. A liquid storage box 54 is fixedly connected to the side wall of the piston box 5. The liquid storage box 54 is located at the bottom of the first rotating wheel 31. An exhaust pipe 55 is fixedly connected to the bottom of the piston box 5. The other end of the exhaust pipe 55 extends through to below the liquid surface in the liquid storage box 54. A one-way valve is installed in the exhaust pipe 55. A suction pipe 56 is fixedly connected to both sides of the fixed sleeve plate 2. The other end of the suction pipe 56 is connected to the inner cavity of its corresponding piston box 5. A one-way valve is installed in the suction pipe 56.

[0041] It should be noted that the one-way valve in the exhaust pipe 55 can only allow gas in the piston box 5 to enter the liquid storage box 54; while the one-way valve in the intake pipe 56 can only allow external airflow to enter the piston box 5.

[0042] With the above-described structure, during the winding process of the pull belt 36 along the first rotating wheel 31, the friction force will drive the first rotating wheel 31 to rotate, and simultaneously drive the turntable 53 to rotate. At this time, in conjunction with the push-pull rod 52, the piston plate 51 will slide back and forth in the piston box 5. When the piston plate 51 slides downward, it will compress the gas in the piston box 5 and open the one-way valve in the exhaust pipe 55, allowing the gas to fill the liquid storage box 54 along the exhaust pipe 55 and push the lubricant in the liquid storage box 54 upward to spray onto the first rotating wheel 31 and the pull belt 36. When the piston plate 51 slides upward, it will generate a negative pressure suction force in the piston box 5, thereby opening the one-way valve in the suction pipe 56, allowing the external airflow to supplement the piston box 5. This process repeats, firstly by using the flowing airflow to reduce the frictional heat generated between the pull belt 36 and the first rotating wheel 31, and secondly by spraying lubricant onto both, reducing the wear of the pull belt 36 during the winding process, thereby improving the service life of the pull belt 36.

[0043] Reference Figure 6 , Figure 9 In addition, the top opening of the reservoir 54 is tilted to both sides and fits against the pull belt 36. This allows the lubricant splashed onto the pull belt 36 to be smoothed out and excess lubricant to be scraped off, so that the lubricant can flow back into the reservoir 54. This reduces lubricant loss and improves energy efficiency during the lubrication process.

[0044] Reference Figure 4 , Figure 5 , Figure 10 and Figure 11 A limiting sleeve 24 is fixedly connected to the top of the movable base 1, and the limiting sleeve 24 is located directly below the lifting frame 23. Air guide boxes 7 are fixedly connected to both sides of the inner wall of the limiting sleeve 24. An air guide plate 71 is slidably connected inside the air guide box 7. A return spring 72 is fixedly connected between the side wall of the air guide plate 71 and the inner wall of the air guide box 7. A push rod 73 is fixedly connected to the other side of the air guide plate 71. The other end of the push rod 73 passes through the air guide box 7 and is fixedly connected to an arc-shaped plate 74. The side wall of the arc-shaped plate 74 is wrapped around the receiving frame. The pull strap 36 inside the reel 35 is in contact with the air guide groove 75, which is fixed to and connected to the inner cavity of the support plate 63 by a suction hose 76. The side wall of the air guide box 7 is fixed to and connected to an air guide pipe 77, the output end of which is connected to the air guide groove 75. The push rod 73 and the arc plate 74 are both provided with an exhaust groove 8. The input end of the exhaust groove 8 is connected to the cavity of the air guide box 7, which is equipped with a return spring 72. The output end of the exhaust groove 8 is tilted towards the pull strap 36.

[0045] With the above structure, during the winding process of the pull belt 36 onto the winding reel 35, the winding diameter of the pull belt 36 will continuously increase. At this time, it will push the arc plate 74, push rod 73 and air guide plate 71 to slide towards the side of the compression return spring 72, thereby expanding the cavity of the air guide box 7 connected to the air guide pipe 77 and generating a negative pressure suction effect. This causes the gas in the support plate 63 to be drawn into the air guide box 7 along the suction hose 76, air guide groove 75 and air guide pipe 77. As the lifting frame 23 is continuously raised, a negative pressure suction effect is generated in the support plate 63, thereby improving the connection strength between the support plate 63 and the ground and enhancing the overall stability of the mobile base 1. Furthermore, during the process of the air guide plate 71 compressing the return spring 72, the air guide box 7 cavity where the return spring 72 is located is also compressed, causing the airflow in the air guide box 7 to blow along the exhaust groove 8 toward the pull belt 36, thereby cleaning the pull belt 36 and preventing impurities attached to the pull belt 36 from causing wear to the pull belt 36 during the winding process, thus achieving the protection of the pull belt 36 and improving the service life of the pull belt 36.

[0046] Reference Figures 1-11In this invention, during use, the mobile base 1 is pushed to the position requiring maintenance, then the surrounding expansion plates 61 are opened, and each set of threaded rods 62 is rotated in sequence so that the support plate 63 touches the ground, and the mobile base 1 is raised so that the moving wheels at the bottom of the mobile base 1 are lifted off the ground. Then, the surrounding threaded rods 62 are adjusted so that the mobile base 1 is in a horizontal state, thereby ensuring the overall stability of the mobile base 1. Then, maintenance personnel can enter the lifting frame 23. Next, the dual-axis motor 3 is turned on so that it drives the winding reels 35 on both sides to rotate. At this time, the pull belt 36 will wind and reel along the third rotating wheel 33, guide groove 34, first rotating wheel 31, second rotating wheel 32 and two sets of steering wheels 38 onto the winding reel 35, thereby pulling the first lifting plate 21 and the second lifting plate 22 to raise the lifting frame 23, and finally reach the height required for maintenance, and then carry out maintenance work.

[0047] During the winding process of the pull belt 36 onto the take-up reel 35, the winding diameter of the pull belt 36 will continuously increase. At this time, it will push the arc plate 74, push rod 73 and air guide plate 71 to slide towards the side of the compression return spring 72, thereby expanding the cavity of the air guide box 7 connected to the air guide pipe 77 and generating a negative pressure suction effect. This causes the gas in the support plate 63 to be drawn into the air guide box 7 along the air suction hose 76, air guide groove 75 and air guide pipe 77. As the lifting frame 23 is continuously raised, a negative pressure suction effect is generated in the support plate 63, thereby improving the connection strength between the support plate 63 and the ground and enhancing the overall stability of the mobile base 1. Furthermore, during the process of the air guide plate 71 compressing the return spring 72, the air guide box 7 cavity where the return spring 72 is located is also compressed, causing the airflow in the air guide box 7 to blow towards the pull belt 36 along the exhaust groove 8, thereby cleaning the pull belt 36 and preventing impurities attached to the pull belt 36 from causing wear to the pull belt 36 during the winding process, thus achieving the protection of the pull belt 36 and improving the service life of the pull belt 36.

[0048] During the winding process of the pull belt 36 along the first rotating wheel 31, the friction force drives the first rotating wheel 31 to rotate, and simultaneously drives the turntable 53 to rotate. At this time, with the push-pull rod 52, the piston plate 51 slides back and forth in the piston box 5. When the piston plate 51 slides downward, it compresses the gas in the piston box 5 and opens the one-way valve in the exhaust pipe 55, allowing the gas to fill the liquid storage box 54 along the exhaust pipe 55 and push the lubricant in the liquid storage box 54 to spray upward onto the first rotating wheel 31 and the pull belt 36. When the piston plate 51 slides upward, it generates a negative pressure suction force in the piston box 5, thereby opening the one-way valve in the suction pipe 56, allowing the external airflow to supplement the piston box 5. This process repeats, firstly by using the flowing airflow to reduce the frictional heat generated between the pull belt 36 and the first rotating wheel 31, and secondly by spraying lubricant on both, reducing the wear of the pull belt 36 during the winding process, thereby improving the service life of the pull belt 36.

[0049] Components not described in detail in this article are existing technologies.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-altitude maintenance platform, comprising a mobile base (1), characterized in that, The top of the movable base (1) is fixedly connected to a fixed sleeve plate (2), a first lifting plate (21) is slidably connected inside the fixed sleeve plate (2), a second lifting plate (22) is slidably connected inside the first lifting plate (21), and a lifting frame (23) is fixedly connected to the side wall of the second lifting plate (22). The system also includes: The drive unit is mounted on the movable base (1) and is used to drive the first lifting plate (21) and the second lifting plate (22) to rise. The support is provided at the corner of the movable base (1), and there are four sets of the support. The support is used to provide stable support force during the lifting of the lifting frame (23) and to prevent the movable base (1) from sliding.

2. The high-altitude maintenance platform according to claim 1, characterized in that, The drive unit includes a dual-axis motor (3), which is fixedly connected to the top of the movable base (1). The upper two sides of the inner wall of the fixed sleeve plate (2) are rotatably connected to a first rotating wheel (31), and the lower two sides of the inner wall of the fixed sleeve plate (2) are rotatably connected to a second rotating wheel (32). The upper two sides of the inner wall of the first lifting plate (21) are rotatably connected to a third rotating wheel (33). The lower two sides of the inner wall of the first lifting plate (21) are provided with guide grooves (34), and guide wheels (341) are rotatably connected in the guide grooves (34). The output ends of the dual-axis motor (3) are fixedly connected to a winding reel (35). The top two sides of the movable base (1) are provided with limit guide grooves (37), and the two ends of the inner cavity of the limit guide grooves (37) are rotatably connected to steering wheels (38).

3. The high-altitude maintenance platform according to claim 2, characterized in that, Both sets of winding reels (35) are wrapped with a pull belt (36). The other end of the pull belt (36) passes through its corresponding two sets of steering wheels (38), second wheel (32), first wheel (31), guide groove (34) and third wheel (33) in sequence and is then fixed to the bottom of the side wall of the second lifting plate (22).

4. The high-altitude maintenance platform according to claim 3, characterized in that, The top of the inner wall of the fixed sleeve plate (2) is fixedly connected to a first limiting plate (4), the top of the inner wall of the first lifting plate (21) is fixedly connected to a second limiting plate (41), the bottom of the outer wall of the first lifting plate (21) near the fixed sleeve plate (2) is fixedly connected to a third limiting plate (42), and the bottom of the outer wall of the second lifting plate (22) near the first lifting plate (21) is fixedly connected to a fourth limiting plate (43). The first limiting plate (4) and the third limiting plate (42) are vertically aligned, and the second limiting plate (41) and the fourth limiting plate (43) are vertically aligned.

5. A high-altitude maintenance platform according to claim 3, characterized in that, Piston boxes (5) are fixedly connected to both sides of the inner wall of the fixed sleeve plate (2). A piston plate (51) is slidably connected inside the piston box (5). A push-pull rod (52) is rotatably connected to the top of the piston plate (51). A turntable (53) is fixedly connected to the end of the shaft of the first rotating wheel (31) near the piston box (5). The other end of the push-pull rod (52) is rotatably connected to the side wall of the turntable (53). A liquid storage box (54) is fixedly connected to the side wall of the piston box (5). The liquid storage box (54) is located at the bottom of the first rotating wheel (31). An exhaust pipe (55) is fixed and connected to the bottom of the piston box (5). The other end of the exhaust pipe (55) extends through to below the liquid surface in the liquid storage box (54). A one-way valve is provided inside the exhaust pipe (55).

6. A high-altitude maintenance platform according to claim 5, characterized in that, Both sides of the fixed sleeve plate (2) are fixedly connected to suction pipes (56), the other end of the suction pipe (56) is connected to the inner cavity of the corresponding piston box (5), and a one-way valve is provided in the suction pipe (56).

7. A high-altitude maintenance platform according to claim 5, characterized in that, The top opening of the liquid storage box (54) is tilted to both sides and fits against the pull strap (36).

8. A high-altitude maintenance platform according to claim 3, characterized in that, The support includes a storage compartment (6), which is fixedly connected to the side wall of the movable base (1). An extension plate (61) is rotatably connected inside the storage compartment (6). A threaded rod (62) is rotatably connected to the other end of the extension plate (61), and a support plate (63) is fixedly connected to the bottom end of the threaded rod (62).

9. A high-altitude maintenance platform according to claim 8, characterized in that, A limiting sleeve (24) is fixedly connected to the top of the movable base (1), and the limiting sleeve (24) is located directly below the lifting frame (23). Air guide boxes (7) are fixedly connected to both sides of the inner wall of the limiting sleeve (24). An air guide plate (71) is slidably connected inside the air guide box (7). A return spring (72) is fixedly connected between the side wall of the air guide plate (71) and the inner wall of the air guide box (7). A push rod (73) is fixedly connected to the other side of the air guide plate (71). The push rod (73) has... The other end passes through the air guide box (7) and is fixedly connected to an arc plate (74), and the side wall of the arc plate (74) is in contact with the pull strap (36) wound in the take-up reel (35). An air guide groove (75) is provided in the expansion plate (61). The air guide groove (75) is fixed and connected to the inner cavity of the support plate (63) by a suction hose (76). An air guide pipe (77) is fixed and connected to the side wall of the air guide box (7). The output end of the air guide pipe (77) is connected to the air guide groove (75).

10. A high-altitude maintenance platform according to claim 9, characterized in that, The push rod (73) and the arc plate (74) are provided with an exhaust groove (8). The input end of the exhaust groove (8) is connected to the cavity of the air guide box (7) with a reset spring (72) installed. The output end of the exhaust groove (8) is inclined towards the pull belt (36).

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