A variable cross-section integral pushing device for super-high climbing frame and a climbing method thereof

Abstract

The application provides a variable cross-section integral pushing device for super high-rise climbing frame, which comprises a plurality of I-beams, the plurality of I-beams are arranged in parallel on a floor slab and are fixed through U-shaped bolts, a pushing device is arranged on each I-beam, the plurality of pushing devices are connected through a channel steel, a climbing frame support is installed on the channel steel, and the climbing frame support can be pushed inwards or outwards along the I-beam through the pushing device at the variable cross-section of the super high-rise building. The variable cross-section climbing frame pushing device designed in the application is used in cooperation with the climbing frame, is suitable for various forms of outer facade changes, and greatly increases the use range of the climbing frame.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a variable cross-section integral moving device for ultra-high-rise climbing formwork and its climbing method. Background Technology

[0002] The tower is a 250m high-rise building. On the 22nd floor, the outer frame extends horizontally outwards by 1.5m on the east and north sides, then contracts inwards by 1.5m on the west and south sides towards the 44th floor. Due to the significant changes in the tower's facade, the climbing scaffolding presents considerable challenges. If a dismantling and reassembling method is used for the scaffolding at variable cross-sections, it would undoubtedly pose safety hazards. Therefore, finding a method for direct climbing scaffolding ascent is necessary to address these potential risks in this project.

[0003] Currently, traditional climbing methods are no longer feasible for climbing scaffolding at variable cross-section locations. The following are some existing approaches for climbing scaffolding at variable cross-section locations:

[0004] (1) As Figure 1 As shown, the climbing scaffold is divided into two parts according to the shape of the facade. When the climbing scaffold encounters a variable cross-section, that part of the climbing scaffold is dismantled and then reinstalled using a pre-erected support. However, this construction plan poses significant safety hazards when working at heights, and the dismantling and reinstallation of the climbing scaffold has a considerable impact on the construction period.

[0005] (2) Figure 2 As shown, when the facade retracts or extends outward by 10-20cm, the entire scaffolding can be inclined upward by gradually retracting or extending the upper part (at an angle of 5-7°). The installation and dismantling of the inclined guide rails are not only difficult but also prolong the climbing construction period. Summary of the Invention

[0006] The purpose of this invention is to address the issue of super high-rise buildings with variable cross-sections that protrude outwards by 1.5m and contract inwards by 1.5m, by providing a device and method for pushing and lifting the entire climbing scaffold with variable cross-sections, which can achieve the effect of pushing the entire climbing scaffold outwards or inwards by 1.5m.

[0007] The technical solution adopted in this invention is:

[0008] A variable cross-section integral moving device for ultra-high-rise climbing formwork includes multiple I-beams arranged in parallel on the floor slab and fixed by U-bolts. Each I-beam is equipped with a moving device, and the multiple moving devices are connected by channel steel. The climbing formwork support is installed on the channel steel. At the ultra-high-rise variable cross-section location, the moving device can push the climbing formwork support inward or outward along the I-beams.

[0009] As a preferred embodiment of the moving device, the moving device includes a steel pad located on top of the I-beam, a driving mechanism is provided on the steel pad, and a sliding component and a mounting plate are provided on the bottom surface of the steel pad. The sliding component is located at the end of the steel pad, and the mounting plate is connected to the channel steel by bolts. The driving mechanism drives the channel steel to move horizontally along the I-beam.

[0010] As a preferred embodiment of the drive mechanism, the drive mechanism includes a speed-regulating motor, which is mounted on the top surface of the steel pad. The output shaft of the speed-regulating motor passes through the steel pad and has a gear at its bottom. A rack guide rail that meshes with the gear is provided on the side wall of the I-beam.

[0011] As a preferred embodiment of the sliding assembly, the sliding assembly is provided in two sets, which are respectively installed at the front and rear ends of the bottom surface of the steel pad.

[0012] The sliding component at the front end includes two symmetrical first upright plates, with a first roller between the two first upright plates, and the first roller makes rolling contact with the top of the I-beam.

[0013] The sliding assembly at the rear end includes two symmetrical second upright plates. A second roller and a third roller are arranged between the two second upright plates. The second roller makes rolling contact with the top of the I-beam, and the third roller makes rolling contact with the bottom of the I-beam.

[0014] Furthermore, the above technical solution includes two mounting plates, each located between two sets of sliding components. The opposite sides of the two mounting plates are connected to a channel steel by bolts. The output shaft of the speed-regulating motor and the central axis of the two mounting plates are on the same horizontal plane. A limit mechanism is provided between the two mounting plates to limit the first roller and the second roller.

[0015] As a preferred embodiment of the limiting mechanism, the limiting mechanism includes a mounting cylinder, which is mounted on the output shaft of a speed-regulating motor via bearings. An upper electromagnet and a lower electromagnet are respectively provided at the upper and lower ends of the mounting cylinder. A repulsion plate is provided between the upper and lower electromagnets. The repulsion plate is sleeved on the mounting cylinder and its two sides are connected to two mounting plates via limiting springs. A connecting rod is also provided on the side wall of the repulsion plate. A horizontal rod is provided at the end of the connecting rod. Limiting components are hinged at both ends of the horizontal rod. The repulsion plate moves between the upper and lower electromagnets, pulling the limiting components to open or close.

[0016] Furthermore, the above technical solution includes a limiting rod and a traction rod. A guide hole is provided on the side wall of the limiting rod, and an installation groove is provided on the bottom horizontal wall of the channel steel. A rhombus block is provided in the installation groove and passes through the guide hole. One end of the traction rod is connected to the top of the limiting rod, and the other end passes through the movable groove on the channel steel and the mounting plate and is hinged to the end of the horizontal rod.

[0017] As a preferred method for speed-regulating motors, a magnet and a Hall sensor are installed on the output shaft of the speed-regulating motor. The speed-regulating motor, the magnet, the Hall sensor, and the computer terminal are connected in sequence to form a circuit, and both the upper and lower electromagnets are connected to the computer terminal.

[0018] As a preferred option for I-beams, limiters are installed at the ends of the I-beams.

[0019] Another object of the present invention is to provide a climbing method for an ultra-high-rise climbing scaffold with variable cross-section integral moving device, comprising the following steps:

[0020] Step 1: Each row of the single-sided climbing scaffold has 10 points, with three rows in total. Each point is equipped with an I-beam as the main beam. One main beam corresponds to a set of pushing devices. The main beams in each row are connected by two symmetrical channel steels. The channel steels are used as secondary beams, and the climbing scaffold supports are installed on the secondary beams.

[0021] Step 2: Connect the speed-regulating motor, Hall sensor, upper electromagnet, and lower electromagnet on each set of pushing devices to the computer terminal and check the safe connection of the circuit;

[0022] Step 3: The computer terminal sends the running speed command, and the speed-regulating motor runs according to the command. The speed of the speed-regulating motor is transmitted to the computer terminal through the Hall sensor. The computer terminal judges the differences of all speed-regulating motors and the differences from the set speed. If the speed of the speed-regulating motor is abnormal, the computer terminal transmits the step-up and step-down command to the frequency converter, and the frequency converter controls the motor speed to achieve the purpose of synchronizing all motors.

[0023] Step 4: When the computer terminal sends the running speed command, it provides a current to the lower electromagnet. After the lower electromagnet is energized, the repulsive disk moves upward, pulling the traction rod and causing the limit rod to move upward along the rhombus block, thus losing its limit on the first and second rollers.

[0024] Step 5: The secondary beam is pushed outward 1500mm along the main beam. The computer terminal issues an instruction to stop all speed-regulating motors. At the same time, a current is supplied to the upper electromagnet. After the upper electromagnet is energized, the repulsion plate moves down, pulling the traction rod and causing the limit rod to move downward along the diamond block, thus re-limiting the first and second rollers.

[0025] Step 6: Upgrade the first layer;

[0026] Step 7: Upgrade to the second layer;

[0027] Step 7: Lift the third floor, complete the lifting of the climbing frame at the variable cross-section, and enter the standard floor.

[0028] The beneficial effects of this invention are:

[0029] 1. The variable cross-section climbing formwork pushing device designed in this invention is used in conjunction with the climbing formwork and is suitable for various facade changes, greatly increasing the application range of the climbing formwork.

[0030] 2. When the climbing scaffold encounters abrupt changes in the facade, especially abruptly expanding facades, the climbing scaffold can be directly raised without needing to be disassembled and reassembled. This not only shortens the construction period but also reduces construction costs.

[0031] 3. This invention detects the speed of the variable speed motor using magnets and Hall sensors, and transmits the speed of the variable speed motor to the computer terminal using Hall sensors. The computer terminal judges the speed difference of all variable speed motors and the difference from the set speed, and can control the speed of the variable speed motor in time to achieve the purpose of synchronizing all variable speed motors, so that the entire climbing frame can be pushed smoothly.

[0032] 4. This invention uses a limiting mechanism to limit the secondary beam after it stops moving. The limiting mechanism consists of an mounting cylinder, an upper electromagnet, a repulsion plate, a lower electromagnet, a limiting spring, a connecting rod, a horizontal rod, a traction rod, and a limiting rod. Both the upper and lower electromagnets are connected to a computer terminal. While the computer terminal controls the speed-regulating motor to rotate, it also supplies current to the lower electromagnet. When the lower electromagnet is energized, the repulsion plate moves upward, and the traction rod pulls the limiting rod upward along the rhombus block, losing its limiting effect on the first and second rollers. Driven by the drive mechanism, the secondary beam moves horizontally outward along the main beam. When the computer terminal controls the speed-regulating motor to stop rotating, it supplies current to the upper electromagnet. When the upper electromagnet is energized, the repulsion plate moves downward, and the traction rod pulls the limiting rod downward along the rhombus block, re-limiting the first and second rollers. Utilizing the limiting mechanism in conjunction with gears and rack guides ensures the stability of the secondary beam, which is beneficial for improving the safety and stability of the entire climbing frame system. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is the traditional climbing method.

[0035] Figure 2 This is the second traditional climbing scaffolding method.

[0036] Figure 3 This is a blueprint for a super high-rise building with a variable cross-section.

[0037] Figure 4 This is a front view of a variable cross-section integral moving device for ultra-high-rise climbing scaffolding provided in this embodiment.

[0038] Figure 5 This is a top view of a variable cross-section integral moving device for ultra-high-rise climbing scaffolding provided in this embodiment.

[0039] Figure 6 This is a side view of a variable cross-section integral moving device for ultra-high-rise climbing scaffolding provided in this embodiment.

[0040] Figure 7 for Figure 6 Enlarged view of point A in the middle.

[0041] Figure 8 This is a schematic diagram of the pushing device.

[0042] Figure 9 This is a schematic diagram of the limiting mechanism.

[0043] Figure 10 This is a schematic diagram of the mounting cylinder.

[0044] Figure 11 This is a schematic diagram of the traction rod and the limit rod.

[0045] Figure 12 This is a schematic diagram of the channel steel and the mounting plate.

[0046] Figure 13 This is a schematic diagram of the first roller.

[0047] Figure 14 This is a schematic diagram showing the connection between a speed-regulating motor and a computer terminal.

[0048] Figure 15 This is a flowchart for the synchronous speed control of 60 variable speed motors.

[0049] Figure 16 This is a schematic diagram of the climbing scaffold being moved 1.5m.

[0050] Figure 17 This is a schematic diagram of the scaffolding being lifted to the standard floor.

[0051] The components include: 1. Floor slab; 2. I-beam; 3. Rack and pinion guide rail; 4. Channel steel; 401. Mounting groove; 402. Diamond block; 5. Steel pad; 501. First vertical plate; 502. Second vertical plate; 503. Mounting plate; 6. Speed-regulating motor; 7. Output shaft; 8. Gear; 9. First roller; 10. Third roller; 11. Limiter; 12. U-bolt; 13. Second roller; 14. Mounting cylinder; 15. Lower electromagnet; 16. Repulsion plate; 17. Upper electromagnet; 18. Limiting spring; 19. Traction rod; 20. Limiting rod; 21. Connecting rod; 22. Horizontal rod; 23. Guide hole; 24. Return spring. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. 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.

[0053] Tower #1 is a super high-rise building with a height of 250m. For example... Figure 3 As shown, the outer frame of Building 1 extends horizontally outward by 1.5m on the east and north sides of the 22nd floor, and then contracts inward by 1.5m on the west and south sides of the 44th floor. Due to the significant changes in the facade of Tower 1, this poses considerable difficulties for the climbing scaffold. If a dismantling and reassembling method is adopted when the climbing scaffold encounters a variable cross-section, it will undoubtedly bring safety hazards to the construction.

[0054] To address the need for a 1.5m abrupt structural change in a project, a variable cross-section overall moving device for climbing scaffolds was developed, which can move the entire climbing scaffold outwards or inwards by 1.5m.

[0055] This embodiment provides a variable cross-section integral moving device for ultra-high-rise climbing scaffolding, such as... Figure 4-5 As shown, 20# I-beams 2 are cantilevered at 2.5m intervals as main beams, with an outward cantilever of 1.5m and a fixed length of 3m within the floor slab. The main beams are fixed to the floor slab 1 within the building using U-shaped clips, and limiters 11 are installed at the ends of the main beams. Two 10# channel steels 4 are erected on the main beams as secondary beams, and the climbing frame supports are installed on the secondary beams. The main beams and secondary beams are driven by a pushing device.

[0056] The moving device includes a steel pad 5, located on top of the I-beam 2. A drive mechanism is mounted on the steel pad 5, and a sliding assembly and mounting plate 503 are mounted on the bottom surface of the steel pad 5. The sliding assembly is located at the end of the steel pad 5, and the mounting plate 503 is connected to the channel steel 4 by bolts. The drive mechanism drives the channel steel 4 to move horizontally along the I-beam 2. The drive mechanism includes a speed-regulating motor 6, which is mounted on the top surface of the steel pad 5. The output shaft 7 of the speed-regulating motor 6 passes through the steel pad 5, and a gear 8 is mounted at its bottom. A rack guide rail 3 meshing with the gear 8 is mounted on the side wall of the I-beam 2. The driving principle is that the motor drives the gear 8, and the gear 8 and rack move relative to each other. Figure 14As shown, a magnet and a Hall sensor are installed on the output shaft 7 of the speed-regulating motor 6. The speed-regulating motor 6, the magnet, the Hall sensor, and the computer terminal are connected in sequence to form a circuit. The magnet and the Hall sensor detect the speed of the speed-regulating motor 6 and transmit the motor speed to the computer terminal through the Hall sensor. The computer terminal judges the speed difference of all motors and the difference of the set speed according to the program. If the computer terminal detects an abnormal speed, it transmits the step-up and step-down voltage command to the frequency converter, which controls the speed of the speed-regulating motor 6 to achieve the purpose of synchronizing all speed-regulating motors 6.

[0057] To reduce friction between the main beam and the secondary beam, and to ensure smooth movement of the secondary beam, a sliding component is added between them, such as... Figure 6 As shown, there are two sets of sliding components, which are installed at the front and rear ends of the bottom surface of the steel pad 5, respectively.

[0058] The sliding component at the front end includes two symmetrical first vertical plates 501, and a first roller 9 is provided between the two first vertical plates 501. The first roller 9 makes rolling contact with the top of the I-beam 2.

[0059] The sliding assembly at the rear end includes two symmetrical second vertical plates 502. A second roller 13 and a third roller 10 are arranged between the two second vertical plates 502. The second roller 13 makes rolling contact with the top of the I-beam 2, and the third roller 10 makes rolling contact with the bottom of the I-beam 2.

[0060] Mounting plate 503, first upright plate 501, and second upright plate 502 are all welded to the ground of steel pad 5. Channel steel 4 is located on the back of mounting plate 503 and between first upright plate 501 and second upright plate 502. First roller 9 and second roller 13 are used to reduce the friction between the main beam and the secondary beam, and third roller 10 is used to prevent the secondary beam from overturning.

[0061] like Figure 13 As shown, the contact point between the first roller 9 and the main beam is designed to taper from the center outwards, reducing the contact area between the roller and the main beam, thereby reducing the friction between the main beam and the secondary beam. The structure of the second roller 13 is the same as that of the first roller 9.

[0062] The output shaft 7 of the speed-regulating motor 6 is located on the same horizontal plane as the central shaft of the two mounting plates 503, and a limit mechanism is provided between the two mounting plates 503 to limit the first roller 9 and the second roller 13.

[0063] Since the secondary beam is currently fixed in its current position only by the meshing of gear 8 and rack guide rail 3, and the secondary beam supports the entire climbing frame, which also needs to climb, there are concerns that the secondary beam may shake, affecting the overall stability and posing a safety hazard. Therefore, a limiting mechanism is added between the channel steel 4 and the roller.

[0064] like Figure 7-12 As shown, the limiting mechanism includes a mounting cylinder 14, which is mounted on the output shaft 7 of the speed-regulating motor 6 via bearings. An upper electromagnet 17 and a lower electromagnet 15 are respectively provided at the upper and lower ends of the mounting cylinder 14. A repulsion disk 16 is provided between the upper electromagnet 17 and the lower electromagnet 15. The repulsion disk 16 is sleeved on the mounting cylinder 14 and its two sides are connected to two mounting plates 503 via limiting springs 18. A connecting rod 21 is also provided on the side wall of the repulsion disk 16. A horizontal rod 22 is provided at the end of the connecting rod 21. Limiting components are respectively hinged at both ends of the horizontal rod 22. The repulsion disk 16 moves between the upper electromagnet 17 and the lower electromagnet 15 to pull the limiting components to open or close.

[0065] like Figure 11 and Figure 12 As shown, the limiting component includes a limiting rod 20 and a traction rod 19. A guide hole 23 is provided on the side wall of the limiting rod 20. An installation groove 401 is provided on the bottom horizontal wall of the channel steel 4. A rhombus block 402 is provided in the installation groove 401. The rhombus block 402 passes through the guide hole 23. One end of the traction rod 19 is connected to the top of the limiting rod 20, and the other end passes through the movable groove on the channel steel 4 and the mounting plate 503 and is hinged to the end of the horizontal rod 22.

[0066] The two ends of the rhombus block 402 are welded to the inner wall of the mounting groove 401. The guide hole 23 is a strip-shaped hole, and its inner wall is in contact with the side wall of the rhombus block 402, so that the limiting rod 20 can only move in a straight line along the direction of the rhombus block 402, and there is no rotation. The front end of the limiting rod is in contact with the roller and the surface of the main beam, and can resist the roller. After the secondary beam stops moving, under the limiting condition of the limiting rod 20, the first roller 9 cannot move backward and the second roller 13 cannot move forward, which can work with the gear 8 and the rack to provide better stability.

[0067] When a current is applied to the lower electromagnet 15, the repulsion disk 16 moves upward, and the traction limit rod 20 moves diagonally upward, losing its limit on the roller. At this time, the speed-regulating motor 6 drives the gear 8 to mesh with the rack, causing the secondary beam to move forward or backward. When the movement stops, a current is applied to the upper electromagnet 17, causing the repulsion disk 16 to move downward, and the traction limit rod 20 resets, re-limiting the roller. When the lower computer terminal issues a run command, it triggers the lower electromagnet 15 to turn on, applying a current to the lower magnet. When the computer terminal issues a stop command, it triggers the upper electromagnet 17 to turn on, applying a current to the upper electromagnet 17, causing the repulsion disk 16 to move downward. The up-and-down movement of the repulsion disk 16 is pulled by the limit spring 18.

[0068] In order to ensure that the limit rod 20 can be reset in time, a reset spring 24 is provided in the guide groove. One end of the reset spring 24 is connected to the end of the guide hole 23, and the other end is connected to the rhombus block 402.

[0069] The method for climbing a scaffold in a variable cross-section using the aforementioned pushing device includes the following steps:

[0070] Step 1: Each row of the single-sided climbing scaffold has 10 points, with three rows in total. Each point is equipped with an I-beam 2 as the main beam. One main beam corresponds to a set of pushing devices. The main beams in each row are connected by two symmetrical channel steels 4. The channel steels 4 are used as secondary beams, and the climbing scaffold supports are installed on the secondary beams.

[0071] Step 2: Connect the speed-regulating motor 6, Hall sensor, upper electromagnet 17 and lower electromagnet 15 on each set of pushing devices to the computer terminal and check the safe connection of the lines.

[0072] Step 3: The computer terminal sends a running speed command. The speed-regulating motor 6 operates according to the command. The speed of the speed-regulating motor 6 is transmitted to the computer terminal via a Hall sensor. The computer terminal judges the differences between all speed-regulating motors 6 and the set speed. If an abnormal speed is detected in a speed-regulating motor 6, the computer terminal transmits a step-up / step-down command to the frequency converter. The frequency converter controls the motor speed to achieve synchronization of 60 motors. Figure 15 As shown;

[0073] Step 4: When the computer terminal sends the running speed command, it provides a current to the lower electromagnet 15. After the lower electromagnet 15 is energized, the repulsion disk 16 moves upward, pulling the traction rod 19 and causing the limit rod 20 to move upward along the rhombus block 402, thus losing its limit on the first roller 9 and the second roller 13.

[0074] Step 5: The secondary beam is pushed outward 1500mm along the main beam. The computer terminal issues a command to stop all speed-regulating motors 6. At the same time, a current is supplied to the upper electromagnet 17. After the upper electromagnet 17 is energized, the repulsion plate 16 moves down, pulling the traction rod 19 and causing the limit rod 20 to move downward along the rhombus block 402, thus re-limiting the first roller 9 and the second roller 13. Figure 16 As shown;

[0075] Step 6: Upgrade the first layer;

[0076] Step 7: Upgrade to the second layer;

[0077] Step 7: Lift the third floor, complete the scaffolding lift at the variable cross-section, and enter the standard floor, as shown. Figure 17 As shown. The variable cross-section formwork moving device designed in this invention avoids the need for disassembly and reassembly of the climbing formwork when it encounters an abrupt change in the facade, especially an abrupt expansion facade. It allows the climbing formwork to climb directly, which not only shortens the construction period but also reduces construction costs.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application 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 or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A variable cross-section integral moving device for ultra-high-rise climbing scaffolding, characterized in that, This device enables the climbing scaffold to be moved outward or inward by 1.5m. It consists of multiple I-beams arranged in parallel on the floor slab and fixed with U-bolts. Each I-beam is equipped with a pushing device, and multiple pushing devices are connected by channel steel. The climbing scaffold support is installed on the channel steel. At the variable cross-section of the super high-rise building, the pushing device can push the climbing scaffold support inward or outward along the I-beams. The pushing device includes a steel pad, which is located on top of the I-beam. A driving mechanism is provided on the steel pad, and a sliding component and a mounting plate are provided on the bottom surface of the steel pad. The sliding component is located at the end of the steel pad, and the mounting plate is connected to the channel steel by bolts. The driving mechanism drives the channel steel to move horizontally along the I-beam. Two sets of sliding components are provided, which are respectively installed at the front and rear ends of the bottom surface of the steel pad; The sliding component at the front end includes two symmetrical first upright plates, with a first roller between the two first upright plates, and the first roller makes rolling contact with the top of the I-beam. The sliding assembly at the rear end includes two symmetrical second upright plates, with a second roller and a third roller disposed between the two second upright plates. The second roller makes rolling contact with the top of the I-beam, and the third roller makes rolling contact with the bottom of the I-beam. There are two mounting plates, both located between two sets of sliding components. The opposite sides of the two mounting plates are connected to a channel steel by bolts. The output shaft of the speed regulating motor and the central shaft of the two mounting plates are on the same horizontal plane. A limit mechanism is set between the two mounting plates to limit the first roller and the second roller. The limiting mechanism includes a mounting cylinder, which is mounted on the output shaft of a speed-regulating motor via bearings. An upper electromagnet and a lower electromagnet are respectively installed at the upper and lower ends of the mounting cylinder. A repulsion plate is installed between the upper and lower electromagnets. The repulsion plate is sleeved on the mounting cylinder and its two sides are connected to two mounting plates via limiting springs. A connecting rod is also installed on the side wall of the repulsion plate. A horizontal rod is installed at the end of the connecting rod. Limiting components are hinged at both ends of the horizontal rod. The repulsion plate moves between the upper and lower electromagnets, pulling the limiting components to open or close. The drive mechanism includes a speed-regulating motor, which is mounted on the top surface of the steel pad. The output shaft of the speed-regulating motor passes through the steel pad and has a gear at its bottom. A rack guide rail that meshes with the gear is provided on the side wall of the I-beam.

2. The integral moving device for variable cross-section of ultra-high-rise climbing scaffolding according to claim 1, characterized in that, The limiting component includes a limiting rod and a traction rod. The side wall of the limiting rod is provided with a guide hole, and the bottom horizontal wall of the channel steel is provided with an installation groove. A rhombus block is provided in the installation groove and passes through the guide hole. One end of the traction rod is connected to the top of the limiting rod, and the other end passes through the movable groove of the channel steel and the mounting plate and is hinged to the end of the horizontal rod.

3. A variable cross-section integral moving device for ultra-high-rise climbing scaffolding according to claim 2, characterized in that, A magnet and a Hall sensor are installed on the output shaft of the speed-regulating motor. The speed-regulating motor, magnet, Hall sensor, and computer terminal are connected in sequence to form a circuit, and both the upper and lower electromagnets are connected to the computer terminal.

4. The integral moving device for variable cross-section of ultra-high-rise climbing scaffolding according to claim 1, characterized in that, Limiters are installed at the ends of the I-beams.

5. A climbing method for a variable cross-section integral moving device for ultra-high-rise climbing scaffolding according to any one of claims 1 to 4, characterized in that, Includes the following steps: Step 1: Each row of the single-sided climbing scaffold has 10 points, with three rows in total. Each point has an I-beam as the main beam. Each main beam corresponds to a set of pushing devices. The main beams in each row are connected by two symmetrical channel steels. The channel steels are used as secondary beams, and the climbing scaffold supports are installed on the secondary beams. Step 2: Connect the speed-regulating motor, Hall sensor, upper electromagnet, and lower electromagnet on each set of pushing devices to the computer terminal and check the safe connection of the circuit; Step 3: The computer terminal sends the running speed command, and the speed-regulating motor runs according to the command. The speed of the speed-regulating motor is transmitted to the computer terminal through the Hall sensor. The computer terminal judges the differences of all speed-regulating motors and the differences from the set speed. If the speed of the speed-regulating motor is abnormal, the computer terminal transmits the step-up and step-down command to the frequency converter, and the frequency converter controls the motor speed to achieve the purpose of synchronizing all motors. Step 4: When the computer terminal sends the running speed command, it provides a current to the lower electromagnet. After the lower electromagnet is energized, the repulsive disk moves upward, pulling the traction rod and causing the limit rod to move upward along the rhombus block, thus losing its limit on the first and second rollers. Step 5: The secondary beam is pushed outward 1500mm along the main beam. The computer terminal issues an instruction to stop all speed-regulating motors. At the same time, a current is supplied to the upper electromagnet. After the upper electromagnet is energized, the repulsion plate moves down, pulling the traction rod and causing the limit rod to move downward along the diamond block, thus re-limiting the first and second rollers. Step 6: Promote the first layer; Step 7: Upgrade to the second layer; Step 8: Lift the third floor, complete the lifting of the climbing frame at the variable cross-section, and enter the standard floor.

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