A power source reusable aerial work platform

Abstract

The application belongs to the technical field of aerial work platforms, and discloses a high-altitude work platform with reusable power sources, which comprises a base, first, second and third lifting pipes and a work platform, a compressed gas spring and a lifting rope are arranged in the first lifting pipe, one end of the compressed gas spring is fixed in the first lifting pipe, and the other end is fixed to the top end of the second lifting pipe, a pulley is rotatably arranged at the top end of the second lifting pipe, one end of the lifting rope is fixed in the first lifting pipe, and the other end is fixed in the third lifting pipe after passing through the pulley, a driving wheel, a transmission wheel and a transmission belt are arranged on the inner wall of the third lifting pipe, a driving assembly is arranged on the outer wall of the third lifting pipe, a connecting plate is arranged at the top end of the second lifting pipe, the connecting plate is fixedly connected with the transmission belt, and the driving assembly drives the transmission belt to move, thereby driving the second lifting pipe and the third lifting pipe to move relatively to realize lifting. The whole process does not need an electric power source, the work platform is stably lifted, the driving is labor-saving, the operation is convenient, energy saving and environmental protection are achieved, and the high-altitude work platform can be effectively applied to special occasions.

Description

Technical Field

[0001] This invention relates to the field of aerial work platform technology, and in particular to an aerial work platform with a reusable power source. Background Technology

[0002] Using aerial work platforms that can protect the safety of workers for high-altitude operations is an important research direction in the field of engineering construction. Aerial work platforms have been widely used in engineering construction, property services, warehousing and logistics, cleaning industry, airport and station maintenance and other fields.

[0003] Currently, most aerial work platforms on the market are driven by power devices such as motors, cylinders, and hydraulic cylinders, all of which require electricity to control. However, in explosion-proof environments where electricity is unavailable, these existing aerial work platforms are useless. Furthermore, purely mechanically operated aerial work platforms require a significant amount of manpower to operate, making them extremely inconvenient to use. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides an aerial work platform with a reusable power source.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a reusable power source aerial work platform, comprising a base, a first lifting tube disposed on the base, a second lifting tube disposed outside the first lifting tube, a third lifting tube disposed outside the second lifting tube, a work platform fixedly connected to the outer wall of the third lifting tube, a compressed air spring and a lifting rope disposed inside the first lifting tube, one end of the compressed air spring being fixed inside the first lifting tube and the other end being fixedly connected to the top end of the second lifting tube, a pulley being rotatably disposed at the top end of the second lifting tube, one end of the lifting rope being fixedly disposed on the inner wall of the first lifting tube and the other end being fixed to the inner wall of the third lifting tube after passing over the pulley, a drive wheel and several transmission wheels being rotatably arranged on the inner wall of the third lifting tube, a transmission belt being wound around the drive wheel and several transmission wheels, a drive assembly for driving the drive wheel to rotate being disposed on the outer wall of the third lifting tube, a connecting plate being disposed on the outer wall of the top end of the second lifting tube, the connecting plate being fixedly connected to the belt body, and the drive assembly driving the transmission belt to move, thereby causing the second lifting tube and the third lifting tube to move relative to each other to achieve lifting.

[0006] By adopting the above technical solution, a first lifting tube, a second lifting tube, and a third lifting tube are set up and connected by a compressed air spring, a lifting rope, and a transmission belt. In this way, the extension and retraction of the first, second, and third lifting tubes can be achieved simply by manually driving the drive assembly to move the transmission belt, thereby achieving the purpose of lifting the work platform. The whole process does not require an electric power source. The compressed air spring can keep the work platform lifting and lowering smoothly, which is labor-saving, easy to operate, energy-saving and environmentally friendly, and can also be effectively applied to special occasions.

[0007] Furthermore, the drive assembly includes a rotating shaft that penetrates the outer wall of the third lifting tube. A drive gear is fixedly mounted on the shaft inside the third lifting tube. A driven gear is coaxially mounted on the drive gear. The drive gear meshes with the driven gear. A rotating rod perpendicular to the shaft is connected to the outer end of the rotating shaft.

[0008] By adopting the above technical solution, a rotating shaft, a rotating rod, a driving gear, and a driven gear are set up. The rotating rod drives the rotating shaft to rotate, which in turn drives the driving wheel to rotate through the driving gear and the driven gear, causing the transmission belt to move and drive the second lifting tube to rise and fall.

[0009] Furthermore, the drive assembly also includes a limiting plate fixedly mounted on the outer wall of the third lifting tube. The limiting plate has a plurality of limiting holes arranged in a circular array. A sleeve is provided at the end of the rotating rod, and a limiting rod is provided inside the sleeve. A compression spring is also provided on the limiting rod.

[0010] By adopting the above technical solution, and setting a limit plate, a limit hole, and a limit rod, the limit rod and the limit hole can be used to limit the movement of the transmission belt after the work platform is raised to a specified height, thereby maintaining height stability.

[0011] Furthermore, a first roller is rotatably provided on the four outer walls of the top of the first lifting tube, a second roller is rotatably provided on the four outer walls of the top and bottom of the second lifting tube, and a third roller is rotatably provided on the inner wall of the bottom of the third lifting tube.

[0012] By adopting the above technical solution and setting the first roller, the second roller, and the third roller, the first lifting tube, the second lifting tube, and the third lifting tube can move more smoothly in relative motion, reducing sliding friction.

[0013] Furthermore, the working platform includes a base plate fixedly connected to the outer wall of the third lifting pipe. The base plate is equipped with railings on three sides near the third lifting pipe. Two doors arranged in opposite directions are rotatably installed on the side of the base plate away from the third lifting pipe. A pivot on one side of the door passes through the base plate. A connecting rod is installed below the base plate. The two ends of the connecting rod are respectively hinged to the ends of the two door pivots located below the base plate.

[0014] By adopting the above technical solutions and setting up fences and doors, workers on the work platform can be protected from falling; by connecting the hinges of the two doors with connecting rods, the two doors can be linked together, which is more labor-saving and convenient.

[0015] Furthermore, a caster wheel is provided at the center of the front side of the base, and a walking wheel is provided on each of the two rear sides of the base.

[0016] By adopting the above technical solution, casters and wheels are installed on the base to facilitate the movement of the entire device.

[0017] Furthermore, a wheel is provided on the inner side of the walking wheel, and several limiting grooves are arranged in a circular array on the edge of the wheel. A limiting post is slidably provided on the base along the width direction. The limiting post cooperates with one of the limiting grooves to limit the walking wheel. A rotating post is also rotatably provided on the base inside the limiting post, which is arranged in the opposite direction along the length of the base. A first connecting plate and a second connecting plate are provided on the rotating post. The end of the first connecting plate away from the rotating post is hinged to the inner end of the limiting post. The second connecting plate extends towards the middle of the base and then bends and extends towards the front of the base. A pressure plate is protruding on the rear outer wall of the bottom end of the third lifting tube. When the working platform descends to the lowest position, the pressure plate presses down on the front end of the second connecting plate, causing the rotating post to rotate and pull the limiting post out of the limiting groove.

[0018] By adopting the above technical solution, a wheel, a limiting groove, a limiting column, a rotating column, a first connecting plate, a second connecting plate, and a pressure plate are set up. The limiting column, in conjunction with one of the limiting grooves, can limit the movement of the traveling wheels, preventing them from rotating during operation. This keeps the entire device stationary and effectively protects the workers. When the work platform descends to its lowest position, the pressure plate presses down on the front end of the second connecting plate, causing the rotating column to rotate and pulling the limiting column out of the limiting groove. At this point, the traveling wheels are released from their limiting position, making it easier to push the base to move the work platform to other positions.

[0019] Furthermore, the omnidirectional wheel includes a wheel body and a vertical protrusion. An upper plate and a lower plate are fixedly mounted on the protrusion. Several guide posts are provided between the upper plate and the lower plate. The base has holes that cooperate with the guide posts to allow the base to move between the upper plate and the lower plate. A support plate is provided on each side of the base. When the base is in contact with the lower plate, the bottom of the support plate is in contact with the ground.

[0020] By adopting the above technical solution, an upper plate, a lower plate, guide columns, and a support plate are set up. When the worker stands on the work platform, the base will press down and fit against the lower plate under the action of gravity. At this time, the bottom of the support plate will contact the ground, so the front side of the base will not roll under the action of the casters, thus avoiding the movement of the base during work.

[0021] In summary, the present invention has the following beneficial effects: In this application, by setting a first lifting tube, a second lifting tube, and a third lifting tube, and connecting them by a compressed air spring, a lifting rope, and a transmission belt, the extension and retraction of the first lifting tube, the second lifting tube, and the third lifting tube can be achieved simply by manually driving the drive assembly to move the transmission belt, thereby achieving the purpose of lifting the work platform. The entire process does not require an electric power source. The compressed air spring can keep the work platform lifting and lowering smoothly, is labor-saving, easy to operate, energy-saving and environmentally friendly, and can also be effectively applied to special occasions. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0023] Figure 2 yes Figure 1 A schematic diagram of the cross-section along direction A;

[0024] Figure 3 yes Figure 2 Enlarged schematic diagram of part B;

[0025] Figure 4 This is a schematic diagram of the structure of the three-section rising and falling pipe according to an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the inner wall of the third rising pipe in an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of the driving component according to an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the operating platform according to an embodiment of the present invention;

[0029] Figure 8 This is a schematic diagram of the structure of the work platform in the lowest position according to an embodiment of the present invention;

[0030] Figure 9 This is a schematic diagram of the walking wheel part in an embodiment of the present invention;

[0031] Figure 10 This is a schematic diagram of the universal wheel part in an embodiment of the present invention.

[0032] In the diagram: 10. Base; 11. Caster wheel; 111. Wheel body; 112. Protruding column; 113. Upper plate; 114. Lower plate; 115. Guide column; 12. Traveling wheel; 121. Wheel disc; 122. Limiting groove; 13. Limiting column; 14. Rotating column; 141. First connecting plate; 142. Second connecting plate; 15. Support plate; 20. First lifting tube; 21. Compressed gas spring; 22. Lifting rope; 23. First roller; 30. Second lifting tube; 31. Pulley; 32. Connecting... 33. Connecting plate; 40. Second roller; 41. Third lifting tube; 42. Drive wheel; 43. Transmission wheel; 44. Transmission belt; 45. Drive assembly; 46. Rotating shaft; 47. Drive gear; 48. Driven gear; 49. Rotating rod; 40. Limiting plate; 41. Limiting hole; 42. Sleeve; 43. Limiting rod; 44. Third roller; 45. Pressure plate; 56. Working platform; 57. Base plate; 58. Fence; 59. Door; 50. Rotating shaft; 51. Connecting rod. Detailed Implementation

[0033] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0034] like Figure 1-10 As shown in the figure, this application discloses a reusable power source aerial work platform, including a base 10, a lifting mechanism and a work platform 50. The base 10 is used to support and move the entire device, and the work platform 50 provides standing and working space for workers. The lifting mechanism includes a first lifting pipe 20, a second lifting pipe 30 and a third lifting pipe 40, which are used to control the lifting of the work platform 50.

[0035] Specifically, the bottom end of the first lifting tube 20 is fixedly mounted on the base 10. A second lifting tube 30 is sleeved on the first lifting tube 20, and a third lifting tube 40 is sleeved on the second lifting tube 30. The outer wall of the third lifting tube 40 is fixedly connected to the working platform 50. First rollers 23 are rotatably mounted on the four outer walls of the top of the first lifting tube 20. Second rollers 33 are rotatably mounted on the four outer walls of the top and bottom of the second lifting tube 30. A third roller 45 is rotatably mounted on the inner wall of the bottom of the third lifting tube 40. The first rollers 23, second rollers 33, and third rollers 45 facilitate smoother movement between the first lifting tube 20, second lifting tube 30, and third lifting tube 40, effectively reducing sliding friction.

[0036] A compressed air spring 21 is installed inside the first lifting tube 20. One end of the compressed air spring 21 is fixed inside the first lifting tube 20, and the other end is fixedly connected to the top of the second lifting tube 30. The lifting and lowering between the first lifting tube 20 and the second lifting tube 30 can be controlled by the compressed air spring 21, which can ensure smooth lifting and lowering without the need for a power source. A lifting rope 22 is installed inside the first lifting pipe 20, and a pulley 31 is rotatably installed at the top of the second lifting pipe 30. One end of the lifting rope 22 is fixed to the inner wall of the first lifting pipe 20, and the other end passes around the pulley 31 and is fixed to the inner wall of the third lifting pipe 40. The first lifting pipe 20, the second lifting pipe 30, and the third lifting pipe 40 are connected by the lifting rope 22. When rising, the distance between the fixed point on the inner wall of the first lifting pipe 20 and the pulley 31 continuously lengthens, and the distance between the fixed point on the inner wall of the third lifting pipe 40 and the pulley 31 continuously shortens. When descending, the distance between the fixed point on the inner wall of the first lifting pipe 20 and the pulley 31 continuously shortens, and the distance between the fixed point on the inner wall of the third lifting pipe 40 and the pulley 31 continuously lengthens, thereby controlling the relative positional relationship between the three lifting pipe sections and realizing lifting.

[0037] Furthermore, a drive wheel 41 and several transmission wheels 42 are rotatably arranged on the inner wall of the third lifting tube 40. The drive wheel 41 is located at the upper end for easy operation. There are several transmission wheels 42, which are respectively arranged at the upper and lower ends of the inner wall of the third lifting tube 40. The drive wheel 41 and several transmission wheels 42 form an approximately rectangular shape, and a transmission belt 43 is wound around it. Both the drive wheel 41 and the transmission wheels 42 have transmission teeth, and the inner side of the transmission belt 43 is also provided with corresponding transmission teeth. In this way, the transmission belt 43 engages with the drive wheel 41 and the transmission wheels 42 through the transmission teeth, and the drive wheel 41 drives the transmission belt 43 to rotate. A drive assembly 44 for driving the drive wheel 41 to rotate is also provided on the outer wall of the third rising tube 40. The drive assembly 44 includes a rotating shaft 441 that passes through the outer wall of the third rising tube 40. A drive gear 442 is fixedly mounted on the shaft of the rotating shaft 441 inside the third rising tube 40. A driven gear 443 is coaxially mounted on the drive wheel 41. The drive gear 442 and the driven gear 443 mesh. A rotating rod 444 perpendicular to the shaft is connected to the outer end of the rotating shaft 441. In this way, the rotating rod 444 drives the rotating shaft 441 to rotate, thereby driving the drive wheel 41 to rotate, thus causing the transmission belt 43 to run.

[0038] To ensure easy control of the transmission belt 43, a limiting disc 445 is fixedly installed on the outer wall of the third lifting tube 40. The limiting disc 445 has several limiting holes 446 arranged in a circular array on it. A sleeve 447 is provided at the end of the rotating rod 444, and a limiting rod 448 is installed inside the sleeve 447. The diameter of the head of the limiting rod 448 is larger than the diameter of the portion located inside the sleeve 447. A compression spring (not shown in the figure) is also provided on the limiting rod 448. One end of the compression spring abuts against the head of the limiting rod 448, and the other end abuts against the inside of the sleeve 447, allowing the limiting rod 448 to move within the sleeve 447. Under the action of the compression spring, the limiting rod 448 moves towards the limiting disc 445, thus engaging with the limiting holes 446 and restricting the rotation of the rotating rod 444, thereby limiting the transmission belt 43. When it is necessary to rotate the rotating rod 444, manually pull the limiting rod 448 outward so that the limiting rod 448 leaves the limiting hole 446 and contacts the limit. After the rotation is completed, simply release your hand. Under the action of the compression spring, the limiting rod 448 will automatically insert into the limiting hole 446 to limit the position. The operation is very convenient.

[0039] A connecting plate 32 is provided on the outer wall of the top of the second lifting tube 30. The connecting plate 32 is fixedly connected to the transmission belt 43. When the drive assembly 44 drives the transmission belt 43 to move, it will cause the second lifting tube 30 and the third lifting tube 40 to move relative to each other, thus achieving lifting. The entire lifting process is driven by the rotating rod 444 in the drive assembly 44. Under the action of the compressed air spring 21, the lifting rope 22, and the transmission belt 43, the relative movement between the first lifting tube 20, the second lifting tube 30, and the third lifting tube 40 is achieved, thereby realizing the lifting of the work platform 50. The whole process does not require a power source or electricity, making it convenient to operate and energy-saving and environmentally friendly.

[0040] The work platform 50 includes a base plate 51 fixedly connected to the outer wall of the third lifting pipe 40. Guardrails 52 are installed on three sides of the base plate 51 adjacent to the third lifting pipe 40 for worker protection. Two opposing doors 53 are rotatably mounted on the side of the base plate 51 away from the third lifting pipe 40. A pivot 54 on one side of each door 53 passes through the base plate 51, and a connecting piece is fixedly mounted at the bottom of the pivot 54. The connecting pieces on the two pivots 54 extend in opposite directions. A connecting rod 55 is located below the base plate 51, with both ends of the connecting rod 55 hinged to the connecting pieces at the bottom of the pivots 54 of the two doors 53. When one of the doors 53 is opened, the pivot 54 of that door 53 will rotate, which will cause the connecting rod 55 to swing through the connecting piece. The connecting rod 55 will cause the connecting piece at the bottom of the pivot 54 of the other door 53 to swing, which will cause the pivot 54 of the other door 53 to rotate and open the other door 53 at the same time. In this way, the two doors 53 can be linked together. By pushing or pulling one door 53, the two doors 53 can be opened synchronously.

[0041] A caster wheel 11 is located at the center of the front side of the base 10, and a traveling wheel 12 is rotatably mounted on each side of the rear side of the base 10. The caster wheel 11 is used for steering when the base 10 is moving, and the traveling wheel 12 is used for moving the base 10. Specifically, a wheel disk 121 is provided on the inner side of the traveling wheel 12. Several limiting grooves 122 are arranged in a circular array on the edge of the wheel disk 121. A limiting post 13 is slidably mounted on the base 10 along the width direction. The limiting post 13 cooperates with one of the limiting grooves 122 to limit the traveling wheel 12, so that the traveling wheel 12 cannot roll, thereby preventing the base 10 from moving. A rotating column 14, arranged in the opposite direction to the length of the base 10, is rotatably mounted on the base 10 inside the limiting column 13. A first connecting plate 141 and a second connecting plate 142 are mounted on the rotating column 14. The end of the first connecting plate 141 furthest from the rotating column 14 is hinged to the inner end of the limiting column 13. The second connecting plate 142 extends towards the middle of the base 10 and then bends towards the front of the base 10. A pressure plate 46 protrudes from the rear outer wall of the bottom end of the third lifting tube 40. In the initial state, the working platform 50 is in its lowest position. At this time, the pressure plate 46 on the third lifting tube 40 presses against the front end of the second connecting plate 142. The limiting column 13 and the limiting groove 122 are separated, and the traveling wheels 12 are not limited. When the work platform 50 rises, the pressure plate 46 on the third lifting pipe 40 rises accordingly and separates from the front end of the second connecting plate 142. After losing pressure, the front end of the second connecting plate 142 tilts upwards, causing the rotating column 14 to rotate. This causes the first connecting plate 141 to drive the limiting column 13 into the limiting groove 122, limiting the movement of the traveling wheel 12 and preventing the base 10 from moving during operation and affecting construction safety. After the work is completed, the work platform 50 descends, and the pressure plate 46 on the third lifting pipe 40 presses down on the front end of the second connecting plate 142. The rotating column 14 rotates accordingly, causing the first connecting plate 141 to drive the limiting column 13 out of the limiting groove 122, releasing the limitation on the traveling wheel 12, thus allowing the base 10 to move.

[0042] The caster wheel 11 includes a wheel body 111 and a vertical protrusion 112. An upper plate 113 and a lower plate 114 are fixedly mounted on the protrusion 112. Several guide posts 115 are arranged between the upper plate 113 and the lower plate 114. The base 10 has holes that cooperate with the guide posts 115 to allow the base 10 to move between the upper plate 113 and the lower plate 114. A support plate 15 is provided on each side of the base 10. In the non-working state, there is no weight on the work platform 50, the base 10 is in contact with the upper plate 113, and the support plate 15 is suspended. The caster wheel 11 provides support for the front of the base 10, and the base 10 can move under the action of the caster wheel 11. In the working state, when the worker stands on the work platform 50, the base 10 is in contact with the lower plate 114 under the action of gravity, and the bottom of the support plate 15 is in contact with the ground. The base 10 is supported by the two support plates 15. At this time, the casters 11 lose their support function, and the base 10 will not move with the casters 11. The two support plates 15 fix the base 10, avoiding the safety accident caused by the movement of the base 10 in the working state.

[0043] In this embodiment, the working principle of a reusable power source aerial work platform 50 is as follows: In the initial state, the work platform 50 is in the lowest position, the pressure plate 46 on the third lifting pipe 40 presses against the front end of the second connecting plate 142, and the limiting column 13 and the limiting groove 122 are separated; there is no heavy object on the work platform 50, the base 10 is in contact with the upper plate 113, the support plate 15 is suspended, and the casters 11 provide support for the front side of the base 10; under these conditions, the base 10 can move freely.

[0044] During operation, the worker stands on the work platform 50 and closes the door 53. Under gravity, the base 10 and lower plate 114 are in contact, and the bottom of the support plate 15 is in contact with the ground. The two support plates 15 support the base 10, preventing it from moving. The worker pulls out the limit rod 448, which drives the rotating rod 444 to rotate the rotating shaft 441. The transmission belt 43 moves, causing the second lifting tube 30 and the third lifting tube 40 to move relative to each other. Under the action of the compressed air spring 21 and the lifting rope 22, the second lifting tube 30 and the first lifting tube 20 also move relative to each other, causing the work platform 50 to rise slowly. After rising to the predetermined height, the worker stops rotating the limit rod 448 and the rotating rod 444, and releases the limit rod 448 so that it engages with the limiting hole 446 to limit the movement. In this way, the work platform 50 is fixed at the predetermined height, facilitating construction. After the work platform 50 rises, the pressure plate 46 on the third lifting pipe 40 rises accordingly and separates from the front end of the second connecting plate 142, allowing the limiting post 13 to insert into the limiting groove 122 to limit the travel wheel 12. During operation, the travel wheel 12 is limited by the cooperation of the limiting post 13 and the limiting groove 122, and the universal wheel 11 loses its support function through the support plate 15, so the base 10 cannot move, fully ensuring operational safety.

[0045] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A reusable power source aerial work platform, characterized in that: The system includes a base (10), on which a first lifting tube (20) is mounted. A second lifting tube (30) is fitted over the first lifting tube (20), and a third lifting tube (40) is fitted over the second lifting tube (30). A working platform (50) is fixedly connected to the outer wall of the third lifting tube (40). A compressed air spring (21) and a lifting rope (22) are installed inside the first lifting tube (20). One end of the compressed air spring (21) is fixed inside the first lifting tube (20), and the other end is fixedly connected to the top of the second lifting tube (30). A pulley (31) is rotatably mounted on the top of the second lifting tube (30). One end of the lifting rope (22) is fixed inside the first lifting tube (20). The other end is fixed to the inner wall of the third lifting tube (40) after passing over the pulley (31). The inner wall of the third lifting tube (40) is rotatably arranged with a drive wheel (41) and several transmission wheels (42). A transmission belt (43) is wound around the drive wheel (41) and several transmission wheels (42). The outer wall of the third lifting tube (40) is also provided with a drive assembly (44) to drive the drive wheel (41) to rotate. The outer wall of the top end of the second lifting tube (30) is provided with a connecting plate (32). The connecting plate (32) is fixedly connected to the body of the transmission belt (43). The drive assembly (44) drives the transmission belt (43) to move, thereby causing the second lifting tube (30) and the third lifting tube (40) to move relative to each other to achieve lifting. A caster wheel (11) is provided at the middle position of the front side of the base (10), and a walking wheel (12) is rotatably provided on each of the two rear sides of the base (10); The inner side of the walking wheel (12) is provided with a wheel disk (121), and a plurality of limiting grooves (122) are arranged in a ring array on the edge of the wheel disk (121). A limiting post (13) is slidably provided on the base (10) along the width direction. The limiting post (13) cooperates with one of the limiting grooves (122) to limit the walking wheel (12). On the base (10) inside the limiting post (13), a rotating post (14) is also rotatably provided, which is arranged in the opposite direction along the length of the base (10). The rotating post (14) is provided with a first connecting plate (141) and a second connecting plate (142). The two connecting plates (142) are connected in a hinged manner. The end of the first connecting plate (141) away from the rotating column (14) is connected to the inner end of the limiting column (13). The second connecting plate (142) extends towards the middle of the base (10) and then bends towards the front of the base (10). A pressure plate (46) is provided on the rear outer wall of the bottom end of the third lifting tube (40). When the working platform (50) descends to the lowest position, the pressure plate (46) presses down on the front end of the second connecting plate (142) to drive the rotating column (14) to rotate and pull the limiting column (13) out of the limiting groove (122).

2. The aerial work platform with a reusable power source according to claim 1, characterized in that: The drive assembly (44) includes a rotating shaft (441) that passes through the outer wall of the third lifting tube (40). A drive gear (442) is fixedly mounted on the shaft of the rotating shaft (441) inside the third lifting tube (40). A driven gear (443) is coaxially mounted on the drive gear (41). The drive gear (442) meshes with the driven gear (443). A rotating rod (444) perpendicular to the shaft is connected to the outer end of the rotating shaft (441).

3. The aerial work platform with a reusable power source according to claim 2, characterized in that: The drive assembly (44) also includes a limiting plate (445) fixedly mounted on the outer wall of the third lifting tube (40). The limiting plate (445) has a plurality of limiting holes (446) arranged in a ring array. The end of the rotating rod (444) is provided with a sleeve (447). A limiting rod (448) is provided inside the sleeve (447). A compression spring is also provided on the limiting rod (448).

4. The aerial work platform with a reusable power source according to claim 1, characterized in that: The first lifting tube (20) has a first roller (23) rotatably mounted on the four outer walls of the top and bottom of the first lifting tube (20), the second lifting tube (30) has a second roller (33) rotatably mounted on the four outer walls of the top and bottom of the second lifting tube (30), and the third lifting tube (40) has a third roller (45) rotatably mounted on the inner wall of the bottom of the third lifting tube (40).

5. The aerial work platform with a reusable power source according to claim 1, characterized in that: The working platform (50) includes a base plate (51) fixedly connected to the outer wall of the third lifting pipe (40). The base plate (51) is provided with railings (52) on three sides near the third lifting pipe (40). The base plate (51) is provided with two doors (53) arranged in opposite directions on the side away from the third lifting pipe (40). The pivot (54) on one side of the door (53) passes through the base plate (51). A connecting rod (55) is provided below the base plate (51). The two ends of the connecting rod (55) are respectively hinged to the ends of the pivots (54) of the two doors (53) located below the base plate (51).

6. The aerial work platform with a reusable power source according to claim 1, characterized in that: The universal wheel (11) includes a wheel body (111) and a vertical protrusion (112). An upper plate (113) and a lower plate (114) are fixedly installed on the protrusion (112). A plurality of guide posts (115) are provided between the upper plate (113) and the lower plate (114). The base (10) has holes that cooperate with the guide posts (115) to allow the base (10) to move between the upper plate (113) and the lower plate (114). A support plate (15) is provided on each side of the base (10). When the base (10) is in contact with the lower plate (114), the bottom of the support plate (15) is in contact with the ground.

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