Protective structure of electric lifting operation platform for outer wall of steel structure factory building

Abstract

The invention relates to the technical field of electric lifting operation platforms, in particular to a protection structure of an electric lifting operation platform for an outer wall of a steel structure factory building, and solves the problems that the operation height of the electric lifting operation platform is high, and the gravity center of the high electric lifting operation platform is unstable during movement; and the electric lifting operation platform is driven by a single motor, and when the load is relatively high, the power of the motor is insufficient, so that the electric lifting operation platform is difficult to move. The protection structure of the electric lifting operation platform for the outer wall of the steel structure factory building comprises a movable base and a main control terminal, a hydraulic lifting execution component is detachably fixed to the upper surface of the movable base, and a standing operation table is fixed to the top of the hydraulic lifting execution component. The device is adsorbed on the outer wall of the plant through the negative pressure suction cups and used for keeping the standing operation table and the hydraulic lifting execution component stable, and it is guaranteed that the standing operation table and the hydraulic lifting execution component cannot incline or shake in the moving process.

Description

Technical Field

[0001] This invention relates to the field of electric lifting operation platform technology, specifically a protective structure for an electric lifting operation platform on the exterior wall of a steel structure factory building. Background Technology

[0002] An electric lifting platform is a type of equipment used for working at heights. It is usually driven by a motor and can be raised and lowered to adapt to different working heights. It is widely used in construction, installation, maintenance and other fields. It is mainly used to provide workers with a safe and convenient operating platform. Steel structure workshops refer to buildings whose main load-bearing components are made of steel. These components usually include steel columns, steel beams, steel structure foundations, steel roof trusses and steel roofs. Sometimes the walls of steel structures can also be enclosed by brick walls. Electric lifting platforms are often required for the maintenance of the exterior walls of steel structure workshops.

[0003] However, the operating height of the electric lifting platform is relatively high, and the center of gravity of the electric lifting platform is unstable when it is high. In addition, the electric lifting platform is driven by a single motor, and the motor power will be insufficient when the load is high, which will make it difficult to move the electric lifting platform and make its use less safe. Therefore, it does not meet the existing needs. To address this, we propose a protective structure for the electric lifting platform on the exterior wall of a steel structure factory building. Summary of the Invention

[0004] The purpose of this invention is to provide a protective structure for an electric lifting operation platform on the exterior wall of a steel structure factory, in order to solve the problems mentioned in the background art, such as the high operating height of the electric lifting operation platform, the instability of the center of gravity when the platform is moving, and the fact that the electric lifting operation platform uses a single motor drive, which results in insufficient motor power under high load, making it difficult to move.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a protective structure for an electric lifting operation platform on the exterior wall of a steel structure factory building, comprising a mobile base and a main control terminal. A hydraulic lifting actuator is detachably fixed to the upper surface of the mobile base. A standing operating platform is fixed to the top of the hydraulic lifting actuator. A weighing structure is installed on the inner bottom surface of the standing operating platform. A protective guide structure is installed on the outer side of the standing operating platform. Two drive axles are rotatably installed inside the mobile base. The ends of the two drive axles extend to the outside of the mobile base, and wheels are detachably installed at both ends of the drive axles outside the mobile base. A transmission structure is installed between the two drive axles. The transmission structure and the weighing structure are electrically connected to the main control terminal. The protective guide structure includes a fixed guide rod, which is fixed to the outer bottom of the standing operating platform. A sliding connecting rod is slidably installed on the outer side of the fixed guide rod. Two adjusting levers are fixed on the upper surface of the sliding connecting rod. End fixing blocks are connected to both ends of the sliding connecting rod by screws. An adjusting electric telescopic rod is fixed on the side of the end fixing block away from the sliding connecting rod. A negative pressure suction cup is fixed to the movable end of the adjusting electric telescopic rod. A bidirectional air pump is fixed to the outer surface of the adjusting electric telescopic rod. Both ends of the bidirectional air pump are connected to hoses, one of which has a hose end that passes through the negative pressure suction cup.

[0006] Preferably, both ends of the sliding link are open, and end limiting blocks are engaged on the inner sides of both ends of the sliding link.

[0007] Preferably, the transmission structure includes a drive spindle and two output motors with different output powers. A rectangular protrusion is located at the center of the interior of the movable base. The length of the rectangular protrusion is one-quarter the length of the drive spindle and is penetrated by the drive spindle. The drive spindle is rotatably connected to the movable base via roller bearings. Both output motors are fixed inside the movable base. A transmission shaft is connected to the end of the output shaft of each output motor. Support plates are fitted on the outer sides of both ends of the transmission shaft. The bottom end of the support plate is fixed to the inner bottom surface of the movable base. The end of the transmission shaft is connected to the support plate via roller bearings.

[0008] Preferably, the end of the output motor that contacts the drive shaft is provided with two drive insertion holes, and the inner side of the end of the drive shaft that contacts the output motor is provided with a receiving hole. A guide cylinder is slidably installed on the inner side of the receiving hole. Two drive connecting rods are fixed at the end of the guide cylinder facing the output motor. The drive connecting rods pass through the drive shaft and are inserted into the drive insertion holes.

[0009] Preferably, a rod-shaped electromagnetic magnet is inserted through the other end of the drive shaft. One end of the rod-shaped electromagnetic magnet is fixed to one of the support plates. The rod-shaped electromagnetic magnet is rotatably connected to the drive shaft, and the other end of the rod-shaped electromagnetic magnet is inserted into the inside of the guide drum.

[0010] Preferably, a magnetic metal ring is fixed on the inner wall of the guide cylinder away from the rod-shaped electromagnet, and a return spring is provided between the guide cylinder and the rod-shaped electromagnet. One end of the return spring is inserted into the inner side of the end of the rod-shaped electromagnet, and the magnetic attraction force of the rod-shaped electromagnet on the magnetic metal ring is greater than the elastic force of the return spring.

[0011] Preferably, a drive sprocket is fixed to the outer side of the drive shaft, and drive sprockets are fixed to the outer sides of both ends of the drive shaft. A drive chain is fitted to the outer side of adjacent drive sprockets and drive sprockets. A drive bevel gear is fixed to both ends of the drive shaft. A drive bevel gear is meshed with one side of the drive bevel gear. The drive bevel gear is fixedly fitted to the outer side of the drive axle, and the positions of the two drive bevel gears are rotationally symmetrical about the center point of the drive shaft.

[0012] Preferably, the outer side of the standing operating platform is provided with a tightening protection mechanism, which includes a movable counterweight base and a tightening sprocket. The movable counterweight base is welded and fixed to the movable base through a high-strength metal connecting arm. A fixed shaft pin is inserted through the axis of the tightening sprocket, and one end of the fixed shaft pin is fixedly connected to the side of the standing operating platform. A self-locking universal wheel is installed at the bottom of the movable counterweight base. A chain tightening roller is rotatably installed on the upper side of the movable counterweight base. A winding shaft is fixedly inserted through the axis of the chain tightening roller. Both ends of the winding shaft are rotatably connected to the movable counterweight base through roller bearings, and one end of the winding shaft is connected to a self-locking motor through a fixed pin. The self-locking motor is fixedly connected to the movable counterweight base.

[0013] Preferably, the weighing structure includes two symmetrically distributed end support pads, the bottom surface of which is fixedly connected to the upper surface of the standing operating platform, and a plurality of mutually fitted weighing plates are distributed between the two end support pads. The upper surfaces of the end support pads and the weighing plates are provided with dustproof pads, which are made of rubber and are connected to the end support pads by adhesive.

[0014] Preferably, a traction chain is wound around the outside of the chain tightening roller. The traction chain passes over the outside of the tightening sprocket, and a second handle is fixedly sleeved at the end of the traction chain away from the chain tightening roller. A main electric suction cup is fixed to the end of the second handle. Three first handles are provided below the second handle. A position-reinforcing electric suction cup is fixed to one end of each first handle. The traction chain passes through the first handle and is slidably connected to the first handle.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention utilizes an adjustable electric telescopic rod to attach a negative pressure suction cup to the wall of a steel structure factory building. Then, a two-way air pump is used to extract the air between the negative pressure suction cup and the factory building wall, causing the negative pressure suction cup to adhere to the outer wall of the factory building. This is used to maintain the stability of the standing operating platform and the hydraulic lifting actuator. When the standing operating platform moves, the fixed guide rod slides inside the sliding link, ensuring that the standing operating platform and the hydraulic lifting actuator will not tilt or shake during the movement. This ensures the safety of the electric lifting operating platform when it is loaded and moved. 2. When the selected output motor starts, the power supply connected to the rod-shaped electromagnetic magnet inside the transmission shaft of the other output motor remains powered. After being energized, the rod-shaped electromagnetic magnet magnetically attracts the magnetic metal ring, causing the magnetic metal ring to drive the guide drum and transmission connecting rod to move towards the rod-shaped electromagnetic magnet. At this time, the return spring is compressed, and the transmission connecting rod separates from the transmission insertion hole. This ensures that when the drive spindle drives the transmission chain, drive sprocket and transmission shaft to rotate through the transmission sprocket, the output shaft of the unselected output motor will not rotate, thus ensuring that the two output motors will not interfere with each other during operation. 3. This invention uses multiple mutually attached weighing plates to weigh the materials placed on the standing operating platform and feeds the weighing results back to the main control terminal. After receiving the information, the main control terminal selects an output motor with appropriate power to run, so as to ensure that the electric lifting operating platform carrying the materials can move smoothly. Moreover, through the feedback results of multiple weighing plates, it can be determined whether the material position on the standing operating platform is evenly distributed and whether there is a risk of the standing operating platform tilting due to excessive material on one side, thereby reducing the safety risks during the use of the electric lifting operating platform. 4. This invention uses two reinforced electric suction cups located at the lower position to adhere to the factory wall. Then, the operator holds another reinforced electric suction cup and the main electric suction cup as the standing operating platform is raised and lowered. After the standing operating platform reaches the designated height, the reinforced electric suction cup and the main electric suction cup are sequentially adhered to the factory wall and fixed. Subsequently, a self-locking motor winds up the chain tensioning roller, tightening the traction chain. The tightened traction chain applies a force towards the factory wall to the tensioning sprocket, the fixing pin, and the standing operating platform, preventing the entire electric lifting operating platform from moving away from the factory and tipping over, thus ensuring the safety of the operator during operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the protective guiding structure of the present invention; Figure 3 This is a schematic diagram of the weighing structure of the present invention; Figure 4 This is a schematic diagram of the internal structure of the movable base of the present invention; Figure 5 This is a schematic diagram of the transmission structure of the present invention; Figure 6 This is a cross-sectional view of the transmission shaft of the present invention; Figure 7 for Figure 2 Enlarged view of the structure at point A in the middle; Figure 8 for Figure 6Enlarged view of the structure at point B; Figure 9 This is a schematic diagram of the tightening and protection mechanism of the present invention; Figure 10 This is a schematic diagram of the transmission shaft of the present invention.

[0017] In the diagram: 1. Movable base; 2. Wheels; 3. Drive axle; 4. Transmission structure; 401. Output motor; 402. Drive shaft; 403. Support plate; 404. Drive sprocket; 405. Drive chain; 406. Drive sprocket; 407. Drive spindle; 408. Drive bevel gear; 409. Drive bevel gear; 410. Rod-shaped electromagnetic magnet; 411. Storage hole; 412. Guide cylinder; 413. Transmission connecting rod; 414. Transmission insertion hole; 415. Magnetic metal ring; 416. Return spring; 5. Protective guide structure; 501. Fixed guide rod; 502. Sliding connecting rod; 503. End fixing... 504. Fixed block; 505. Adjusting lever; 506. Adjusting electric telescopic rod; 507. Negative pressure suction cup; 508. Two-way air pump; 509. End limit block; 6. Weighing structure; 601. Dustproof pad; 602. End support pad; 603. Weighing plate; 7. Standing operating platform; 8. Hydraulic lifting actuator; 9. Tightening protection mechanism; 901. Movable counterweight base; 902. Chain tightening roller; 903. Self-locking motor; 904. Traction chain; 905. Reinforced electric suction cup; 906. Tightening sprocket; 907. Fixed shaft pin; 908. Main electric suction cup; 909. First handle; 910. Second handle. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] like Figure 1 As shown, a protective structure for an electric lifting operating platform on the exterior wall of a steel structure factory building includes a mobile base 1 and a main control terminal. A hydraulic lifting actuator 8 is detachably fixed to the upper surface of the mobile base 1. A standing operating platform 7 is fixed to the top of the hydraulic lifting actuator 8. A weighing structure 6 is installed on the inner bottom surface of the standing operating platform 7. A protective guide structure 5 is installed on the outer side of the standing operating platform 7. Two drive axles 3 are rotatably installed inside the mobile base 1. The ends of the two drive axles 3 extend to the outside of the mobile base 1, and wheels 2 are detachably installed on both ends of the drive axles 3 located outside the mobile base 1. A transmission structure 4 is installed between the two drive axles 3. The transmission structure 4 and the weighing structure 6 are both electrically connected to the main control terminal.

[0020] like Figure 2 and Figure 7As shown, the protective guide structure 5 includes a fixed guide rod 501, which is fixed to the outer side of the bottom end of the standing operating platform 7. A sliding connecting rod 502 is slidably installed on the outer side of the fixed guide rod 501. Two adjusting levers 504 are fixed to the upper surface of the sliding connecting rod 502. End fixing blocks 503 are connected to both ends of the sliding connecting rod 502 by screws. An adjusting electric telescopic rod 505 is fixed to the side of the end fixing block 503 opposite to the sliding connecting rod 502. A negative pressure suction cup 506 is fixed to the movable end of the adjusting electric telescopic rod 505. A bidirectional air pump 507 is fixed to the outer surface of the adjusting electric telescopic rod 505. Both ends of the bidirectional air pump 507 are connected to hoses, one end of which passes through the negative pressure suction cup 506. The negative pressure suction cup 506 is attached to the wall of the steel structure factory building by adjusting the electric telescopic rod 505. Then, the bidirectional air pump 507 is used to extract the air between the negative pressure suction cup 506 and the factory building wall, so that the negative pressure suction cup 506 is attached to the outer wall of the factory building. This is used to maintain the stability of the standing operating platform 7 and the hydraulic lifting actuator 8. When the standing operating platform 7 moves, the fixed guide rod 501 slides inside the sliding connecting rod 502, ensuring that the standing operating platform 7 and the hydraulic lifting actuator 8 will not tilt or shake during the movement.

[0021] The hydraulic lifting actuator 8 can be a scissor-type telescopic frame driven by a hydraulic rod.

[0022] Both ends of the sliding link 502 are open, and both ends of the sliding link 502 are fitted with end limiting blocks 508. The end limiting blocks 508 are used to block the ends of the sliding link 502 and limit the movement of the fixed guide rod 501 that slides inside the sliding link 502, so as to prevent the fixed guide rod 501 from separating from the inside of the sliding link 502.

[0023] like Figures 4 to 6 , Figure 8 and Figure 10As shown, the transmission structure 4 includes a drive spindle 407 and two output motors 401. The two output motors 401 have different output powers. A rectangular protrusion is located in the middle of the interior of the movable base 1. The length of the rectangular protrusion is one-quarter the length of the drive spindle 407 and is penetrated by the drive spindle 407. The drive spindle 407 is rotatably connected to the movable base 1 via roller bearings. Both output motors 401 are fixed inside the movable base 1. A transmission shaft 402 is connected to the end of the output shaft of each output motor 401. Support plates 403 are fitted on the outer sides of both ends of the transmission shaft 402. The bottom end of the support plate 403 is fixed to the inner bottom surface of the movable base 1, and the end of the transmission shaft 402 is connected to the support plate 403. The output motor 401 is connected by roller bearings. The end of the output motor 401 that contacts the drive shaft 402 is provided with two drive insertion holes 414. The inner side of the end of the drive shaft 402 that contacts the output motor 401 is provided with a receiving hole 411. A guide cylinder 412 is slidably installed on the inner side of the receiving hole 411. Two drive connecting rods 413 are fixed on the end of the guide cylinder 412 facing the output motor 401. The drive connecting rods 413 pass through the drive shaft 402 and are inserted into the drive insertion holes 414. The output motor 401 and the drive shaft 402 are connected by the drive connecting rods 413 to ensure that when the output motor 401 is powered on and started, the output shaft of the output motor 401 can drive the drive shaft 402 to rotate simultaneously.

[0024] A rod-shaped electromagnetic magnet 410 is inserted through the other end of the drive shaft 402. One end of the rod-shaped electromagnetic magnet 410 is fixed to one of the support plates 403. The rod-shaped electromagnetic magnet 410 is rotatably connected to the drive shaft 402, and the other end of the rod-shaped electromagnetic magnet 410 is inserted into the inner side of the guide cylinder 412. A magnetic metal ring 415 is fixed on the inner wall of the guide cylinder 412 away from the rod-shaped electromagnetic magnet 410. A return spring 416 is provided between the guide cylinder 412 and the rod-shaped electromagnetic magnet 410. One end of the return spring 416 is inserted into the rod-shaped electromagnetic magnet 410. On the inner side of the end, the magnetic attraction force of the rod-shaped electromagnetic magnet 410 on the magnetic metal ring 415 is greater than the elastic force of the return spring 416. When the rod-shaped electromagnetic magnet 410 is energized and magnetically attracts the magnetic metal ring 415, the transmission connecting rod 413 is separated from the transmission insertion hole 414. The transmission connecting rod 413 is put into the receiving hole 411 and the end of the transmission connecting rod 413 is flush with the end of the transmission shaft 402, so that the output motor 401 is disconnected from the transmission shaft 402, so as to ensure that only one output motor 401 is used to drive the operating platform to move.

[0025] A drive sprocket 404 is fixed to the outer side of the drive shaft 402. A drive sprocket 406 is fixed to the outer side of both ends of the drive shaft 407. A drive chain 405 is sleeved on the outer side of the adjacent drive sprocket 404 and drive sprocket 406. A drive bevel gear 408 is fixed to both ends of the drive shaft 407. A drive bevel gear 409 is meshed on one side of the drive bevel gear 408. The drive bevel gear 409 is fixedly sleeved on the outer side of the drive shaft 3. The positions of the two drive bevel gears 409 are symmetrical about the center point of the drive shaft 407. The output motor 401 drives the drive sprocket 404, drive chain 405, and drive sprocket 406 to rotate through the drive shaft 402. This causes the drive shaft 407 to drive the drive bevel gear 409 to rotate through the drive bevel gear 408. This causes the two drive shafts 3 to rotate in the same direction, thereby driving the wheel 2 to move the movable base 1.

[0026] like Figure 3 As shown, the weighing structure 6 includes two symmetrically distributed end support pads 602. The bottom surface of the end support pads 602 is fixedly connected to the upper surface of the standing operating platform 7. Multiple weighing plates 603 are distributed between the two end support pads 602 and are in close contact with each other. The upper surfaces of the end support pads 602 and the weighing plates 603 are provided with dustproof pads 601. The dustproof pads 601 are made of rubber and are connected to the end support pads 602 by adhesive. The materials placed on the standing operating platform 7 are weighed by multiple in close contact with each other using the weighing plates 603, and the weighing results are fed back to the main control terminal. After receiving the information, the main control terminal selects an output motor 401 with appropriate power to run, so as to ensure that the electric lifting operating platform carrying the materials can move smoothly.

[0027] The weighing plate 603 includes an upper housing, a lower housing, and a weighing sensor. The weighing sensor is located between the upper housing and the lower housing, and the top of the weighing sensor is in contact with the bottom surface of the upper housing.

[0028] like Figure 9As shown, the outer side of the standing operating platform 7 is equipped with a tightening protection mechanism 9. The tightening protection mechanism 9 includes a movable counterweight base 901 and a tightening sprocket 906. The movable counterweight base 901 is welded and fixed to the movable base 1 through a high-strength metal connecting arm. A fixing pin 907 is inserted through the axis of the tightening sprocket 906. One end of the fixing pin 907 is fixedly connected to the side of the standing operating platform 7. A self-locking universal wheel is installed at the bottom of the movable counterweight base 901, and the axis of the self-locking universal wheel is perpendicular to the factory wall. Multiple counterweight blocks are detachably installed on the surface of the movable counterweight base 901. After the self-locking universal wheel at the bottom of the movable counterweight base 901 is locked, the counterweight block ensures that the movable counterweight base 901 will not be pulled by the traction chain 904. A chain tensioning roller 902 is rotatably installed on the upper side of the movable counterweight base 901. A winding shaft is fixed through the axis of the chain tensioning roller 902. Both ends of the winding shaft are rotatably connected to the movable counterweight base 901 through roller bearings, and one end of the winding shaft is connected to a self-locking motor 903 through a fixing pin. The self-locking motor 903 is fixed to the movable counterweight base 901 and has a self-locking interlock control circuit.

[0029] A traction chain 904 is wound around the outside of the chain tensioning roller 902. The traction chain 904 passes outside the tensioning sprocket 906 and is fixedly fitted with a second handle 910 at the end away from the chain tensioning roller 902. A main electric suction cup 908 is fixed to the end of the second handle 910. Three first handles 909 are located below the second handle 910. A position-reinforcing electric suction cup 905 is fixed to one end of each first handle 909. The traction chain 904 passes through the first handle 909 and slides through it. The two lower position-reinforcing electric suction cups 905 are then attached to the factory wall for fixation. Then, the worker manually... The electric suction cup 905 and the main electric suction cup 908 are raised and lowered along with the standing operating platform 7. After the standing operating platform 7 reaches the designated height, the electric suction cup 905 and the main electric suction cup 908 are sequentially attached to the factory wall and fixed. Then, the self-locking motor 903 winds up the chain tensioning roller 902, so that the traction chain 904 is tightened. The tightened traction chain 904 applies a force towards the factory wall to the tensioning sprocket 906, the fixed shaft pin 907 and the standing operating platform 7, preventing the entire electric lifting operating platform from moving away from the factory and tipping over, thus ensuring the safety of the workers during the operation.

[0030] Working principle: When in use, the material to be used is first placed on the weighing structure 6. After the material is placed, the weighing plate 603 weighs the material and feeds back the weighing result to the main control terminal. The main control terminal collects, analyzes and compares the feedback results of all weighing plates 603. Based on the differences between the feedback data of each weighing plate 603, it determines whether the material is piled up on one side of the standing operating platform 7. If the analysis result shows that the material is piled up on one side, the main control terminal will issue an alarm to remind the staff to redistribute the material position. After the material is evenly distributed, the electric lifting operating platform is activated to raise the standing operating platform 7 to the appropriate position. The two lower-positioned reinforcement electric suction cups 905 are attached to the factory wall for fixation. Then, the worker holds the other reinforcement electric suction cup 905 and the main electric suction cup 908 and raises and lowers them along with the standing operating platform 7. The standing operating platform 7 is then raised. After reaching the designated height, the reinforcement electric suction cup 905 and the main electric suction cup 908 are attached to the factory wall for fixation. Then, the self-locking motor 903 winds up the chain tensioning roller 902, tightening the traction chain 904. After the traction chain 904 is tightened, the self-locking motor 903 stops running and self-locks. Due to the position reinforcement electric suction cup 905 and the main electric suction cup 908 being fixed to the factory wall, the positions of the first handle 909 and the second handle 910 remain unchanged when the traction chain 904 is tightened. This causes the tightened traction chain 904 to exert a force towards the factory wall on the tightening sprocket 906, the fixed shaft pin 907 and the standing operating platform 7, preventing the entire electric lifting operating platform from moving away from the factory and tipping over, thus ensuring the safety of the workers during the operation. When the standing operating platform 7 rises to the appropriate position, the two adjustable electric telescopic rods 505 are energized and start, causing the negative pressure suction cup 506 to move closer to the factory wall until it contacts the wall. At this point, the adjustable electric telescopic rods 505 stop moving, and the two bidirectional air pumps 507 are energized and start. The bidirectional air pumps 507 extract the air between the negative pressure suction cup 506 and the factory wall, creating a negative pressure between them. This forms a U-shaped protective structure on the outside of the standing operating platform 7, consisting of the negative pressure suction cup 506, the adjustable electric telescopic rods 505, the end fixing block 503, and the sliding connecting rod 502, preventing the platform from tilting. When the platform is moved, the standing operating platform 7 drives the fixed guide rod 501 to move inside the sliding connecting rod 502. Before moving, the operator of the standing operating platform 7 needs to loosen the main electric suction cup 908 and the position reinforcement electric suction cup 905, and the operator on the ground needs to loosen the other two position reinforcement electric suction cups 905. Since the moving counterweight base 901 is fixed to the moving base 1 through the high-strength connecting arm, when the standing operating platform 7 moves, the standing operating platform 7 drives the moving counterweight base 901 to move through the high-strength connecting arm. During the movement, the overall structure of the electric lifting operating platform can be kept stable and will not tilt or shake, so as to ensure the safety of the operator standing on the standing operating platform 7 when working. When the electric lifting platform needs to be moved, the main control terminal selects a suitable output motor 401 based on the weighing result and starts it. The rod-shaped electromagnetic magnet 410 inside the transmission shaft 402 connected to this output motor 401 keeps the power disconnected, so that the return spring 416 presses the guide drum 412 and the transmission connecting rod 413 toward the transmission insertion hole 414. After the output motor 401 starts, it drives the transmission connecting rod 413 to rotate, which causes the transmission shaft 402 to drive the drive sprocket 404, the transmission chain 405, and the transmission sprocket 406 to rotate. This causes the drive shaft 407, the drive bevel gear 408, and the transmission bevel gear 409 to drive the transmission axle 3 and the wheel 2 to rotate, thus moving the electric lifting platform. When the selected output motor 401 is running, the power supply connected to the rod-shaped electromagnet 410 inside the drive shaft 402 connected to the other output motor 401 remains powered. After the rod-shaped electromagnet 410 is energized, it magnetically attracts the magnetic metal ring 415, causing the magnetic metal ring 415 to drive the guide drum 412 and the transmission connecting rod 413 to move towards the rod-shaped electromagnet 410. At this time, the return spring 416 is compressed, and the transmission connecting rod 413 is separated from the transmission insertion hole 414. This ensures that when the drive spindle 407 rotates, it drives the transmission chain 405, the drive sprocket 404, and the drive shaft 402 to rotate through the transmission sprocket 406, so that the output shaft of the unselected output motor 401 will not rotate, thus ensuring that the two output motors 401 will not interfere with each other during operation.

[0031] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A protective structure for an electric lifting operation platform on the exterior wall of a steel structure factory building, comprising a movable base (1) and a main control terminal, characterized in that: The upper surface of the mobile base (1) is detachably fixed with a hydraulic lifting actuator (8), the top of the hydraulic lifting actuator (8) is fixed with a standing operating platform (7), the inner bottom surface of the standing operating platform (7) is equipped with a weighing structure (6), the outer side of the standing operating platform (7) is equipped with a protective guide structure (5), the inside of the mobile base (1) is rotatably installed with two drive axles (3), the ends of the two drive axles (3) extend to the outside of the mobile base (1), and the two ends of the drive axles (3) located outside the mobile base (1) are detachably equipped with wheels (2), a transmission structure (4) is installed between the two drive axles (3), and the transmission structure (4) and the weighing structure (6) are electrically connected to the main control terminal. The protective guide structure (5) includes a fixed guide rod (501), which is fixed to the outer side of the bottom of the standing operating platform (7). A sliding connecting rod (502) is slidably installed on the outer side of the fixed guide rod (501). Two adjusting levers (504) are fixed on the upper surface of the sliding connecting rod (502). Both ends of the sliding connecting rod (502) are connected to end fixing blocks (503) by screws. An adjusting electric telescopic rod (505) is fixed on the side of the end fixing block (503) away from the sliding connecting rod (502). A negative pressure suction cup (506) is fixed to the movable end of the adjusting electric telescopic rod (505). A two-way air pump (507) is fixed to the outer surface of the adjusting electric telescopic rod (505). Both ends of the two-way air pump (507) are connected to hoses, one end of which passes through the negative pressure suction cup (506).

2. The protective structure for an electric lifting operation platform on the exterior wall of a steel structure factory building according to claim 1, characterized in that: Both ends of the sliding link (502) are open, and both ends of the sliding link (502) are fitted with end limiting blocks (508).

3. The protective structure for an electric lifting operation platform on the exterior wall of a steel structure factory building according to claim 1, characterized in that: The transmission structure (4) includes a drive spindle (407) and two output motors (401). The output power of the two output motors (401) is different. The movable base (1) has a rectangular protrusion at the middle position inside. The length of the rectangular protrusion is one-quarter of the length of the drive spindle (407) and is penetrated by the drive spindle (407). The drive spindle (407) and the movable base (1) are rotatably connected by roller bearings. The two output motors (401) are fixed inside the movable base (1). The output shaft end of the output motor (401) is connected to a transmission shaft (402). Support plates (403) are sleeved on the outer sides of both ends of the transmission shaft (402). The bottom end of the support plate (403) is fixed to the inner bottom surface of the movable base (1). The end of the transmission shaft (402) is connected to the support plate (403) by roller bearings.

4. The protective structure for an electric lifting operation platform on the exterior wall of a steel structure factory building according to claim 3, characterized in that: The output motor (401) has two transmission insertion holes (414) at the end that contacts the transmission shaft (402). The transmission shaft (402) has a receiving hole (411) on the inner side of the end that contacts the output motor (401). A guide cylinder (412) is slidably installed on the inner side of the receiving hole (411). Two transmission connecting rods (413) are fixed at the end of the guide cylinder (412) facing the output motor (401). The transmission connecting rods (413) pass through the transmission shaft (402) and are inserted into the transmission insertion holes (414).

5. The protective structure for an electric lifting operation platform on the exterior wall of a steel structure factory building according to claim 4, characterized in that: A rod-shaped electromagnetic magnet (410) is inserted through the other end of the drive shaft (402). One end of the rod-shaped electromagnetic magnet (410) is fixed to one of the support plates (403). The rod-shaped electromagnetic magnet (410) is rotatably connected to the drive shaft (402), and the other end of the rod-shaped electromagnetic magnet (410) is inserted into the inside of the guide drum (412).

6. The protective structure for an electric lifting operation platform on the exterior wall of a steel structure factory building according to claim 5, characterized in that: A magnetic metal ring (415) is fixed on the inner wall of the guide cylinder (412) away from the rod-shaped electromagnetic magnet (410). A return spring (416) is provided between the guide cylinder (412) and the rod-shaped electromagnetic magnet (410). One end of the return spring (416) is inserted into the inner side of the end of the rod-shaped electromagnetic magnet (410). The magnetic attraction force of the rod-shaped electromagnetic magnet (410) on the magnetic metal ring (415) is greater than the elastic force of the return spring (416).

7. The protective structure for an electric lifting operation platform on the exterior wall of a steel structure factory building according to claim 3, characterized in that: A drive sprocket (404) is fixed to the outside of the drive shaft (402). A drive sprocket (406) is fixed to the outside of both ends of the drive shaft (407). A drive chain (405) is sleeved on the outside of the drive sprocket (406) and the adjacent drive sprocket (404). A drive bevel gear (408) is fixed to both ends of the drive shaft (407). A drive bevel gear (409) is meshed on one side of the drive bevel gear (408). The drive bevel gear (409) is fixedly sleeved on the outside of the drive axle (3). The positions of the two drive bevel gears (409) are symmetrical about the center point of the drive shaft (407).

8. The protective structure for an electric lifting operation platform on the exterior wall of a steel structure factory building according to claim 1, characterized in that: The outer side of the standing operating platform (7) is provided with a tightening protection mechanism (9). The tightening protection mechanism (9) includes a movable counterweight base (901) and a tightening sprocket (906). The movable counterweight base (901) and the movable base (1) are welded and fixed together by a high-strength metal connecting arm. A fixed shaft pin (907) is inserted through the axis of the tightening sprocket (906). One end of the fixed shaft pin (907) is fixedly connected to the side of the standing operating platform (7). The bottom of the base (901) is equipped with self-locking casters. A chain tensioning roller (902) is rotatably mounted on the upper side of the movable counterweight base (901). A winding shaft is fixedly connected through the axis of the chain tensioning roller (902). The two ends of the winding shaft are rotatably connected to the movable counterweight base (901) through roller bearings. One end of the winding shaft is connected to a self-locking motor (903) through a fixing pin. The self-locking motor (903) is fixedly connected to the movable counterweight base (901).

9. The protective structure for an electric lifting operation platform on the exterior wall of a steel structure factory building according to claim 1, characterized in that: The weighing structure (6) includes two symmetrically distributed end support pads (602). The bottom surface of the end support pads (602) is fixedly connected to the upper surface of the standing operating platform (7). A plurality of weighing plates (603) are distributed between the two end support pads (602) and are in close contact with each other. The upper surfaces of the end support pads (602) and the weighing plates (603) are provided with dustproof pads (601). The dustproof pads (601) are made of rubber and are connected to the end support pads (602) by adhesive.

10. The protective structure for an electric lifting operation platform on the exterior wall of a steel structure factory building according to claim 8, characterized in that: A traction chain (904) is wound around the outside of the chain tightening roller (902). The traction chain (904) passes over the outside of the tightening sprocket (906). A second handle (910) is fixedly sleeved at the end of the traction chain (904) away from the chain tightening roller (902). A main electric suction cup (908) is fixed at the end of the second handle (910). Three first handles (909) are provided below the second handle (910). A position-reinforcing electric suction cup (905) is fixed at one end of the first handle (909). The traction chain (904) passes through the first handle (909) and is slidably connected to the first handle (909).

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