A driving anti-falling device for building climbing frame lifting and a lifting system thereof

Abstract

The application relates to a driving anti-falling device for building climbing frame lifting and a lifting system thereof, the driving anti-falling device comprising a rack, a climbing device and an anti-falling assembly, the rack being vertically installed on a wall body, the outer side of the climbing device being connected with the building climbing frame, the inner side being engaged with the rack and moving up and down along the rack, the anti-falling assembly comprising a limiting stopper, an anti-falling block, a gear one and a gear two, the anti-falling block being installed on the climbing device through a pin shaft one and being rotatable around the pin shaft one, the gear one and the gear two being installed on the climbing device through a pin shaft two, the gear one being engaged with the rack, the gear two being located at the lower end of the anti-falling block, the limiting stopper being located between the gear two and the anti-falling block, the anti-falling block being provided with anti-falling teeth matched with the gear two, the anti-falling teeth being inclined to the direction away from the pin shaft one. When the building climbing frame falls, the anti-falling teeth are blocked on the gear two, the gear two stops rotating, the gear one coaxially arranged with the gear two is blocked on the rack, the climbing frame stops falling, and the safety requirement of the building climbing frame falling is met.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a drive and anti-fall device and its lifting system for building climbing formwork lifting. Background Technology

[0002] Climbing scaffolding is a type of scaffolding that can be lifted as a whole. Once erected, it can rise or fall along the entire building, offering advantages such as low investment, ease of use, and high practicality. Therefore, it is favored in high-rise building construction and is a commonly used construction equipment. In existing technologies, one end of an electric hoist is typically fixed to the building, while the other end is connected to the climbing scaffolding via a chain. The hoist's forward or reverse rotation achieves the overall rise or fall of the climbing scaffolding. However, due to uneven load distribution or when the load exceeds the hoist's capacity, climbing scaffolding is prone to falling. To prevent falls, fall arrestors are required. Existing fall arrestors are complex in structure and have slow response times, with a typical slippage of 120mm-150mm during a fall, which fails to meet the safety requirement of a maximum slippage distance of 80mm. Therefore, a fall arrestor with a simple structure and minimal slippage distance is needed. Summary of the Invention

[0003] This invention addresses the existing technical problems by providing a drive and fall protection device and its lifting system for building climbing formwork lifting.

[0004] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: A drive anti-fall device for lifting and lowering a building climbing scaffold includes a rack, a climbing device, and an anti-fall component. The rack is vertically installed on the wall. The outer side of the climbing device is connected to the building climbing scaffold, and the inner side meshes with the rack and moves up and down along the rack. The anti-fall component includes a limiting block, an anti-fall block, a first gear, and a second gear. The anti-fall block is installed on the climbing device through a first pin and can rotate around the first pin. The first gear and the second gear are installed on the climbing device through the second pin. The first gear meshes with the rack, and the second gear is located at the lower end of the anti-fall block. The limiting block is located between the second gear and the anti-fall block. The anti-fall block is provided with anti-fall teeth that match the second gear, and the anti-fall teeth are inclined away from the first pin.

[0005] The beneficial effects of this invention are as follows: By setting up an anti-fall block with anti-fall teeth, when the building climbing scaffold falls, the anti-fall teeth are locked onto gear two, stopping gear two from rotating. Gear one, which is coaxially arranged with gear two, is locked onto the rack, stopping the building climbing scaffold from falling. This reduces the slip distance of the building climbing scaffold falling, meets the safety requirements for building climbing scaffold falling, and improves the safety factor. The overall structure is simple and the operation is reliable. By installing the anti-fall component on the climbing device, the anti-fall component and the building climbing scaffold can move up and down simultaneously, enabling the anti-fall component to brake the building climbing scaffold in a timely and effective manner, ensuring the normal operation of the building climbing scaffold. By vertically installing the rack on the wall, the building climbing scaffold can move up and down along the wall, thereby meeting the construction needs of high-rise buildings.

[0006] Based on the above technical solution, in order to achieve ease of use and stability of the equipment, the present invention can also make the following improvements to the above technical solution:

[0007] Furthermore, the fall arrestor assembly also includes a coaxially arranged actuating gear and a third gear, which are mounted on the climbing device. The third gear meshes with the rack. The fall arrestor is an eccentric swing block. The actuating gear rotates the fall arrestor. The center of gravity of the fall arrestor is on the same side as the limiting block. The limiting block is provided with a compression spring for resetting the fall arrestor.

[0008] The beneficial effect of adopting the above-mentioned further technical solution is that when the building climbing formwork is rising or falling normally, the actuating gear actuates the anti-fall block to rotate, and the anti-fall block automatically resets under the action of the compression spring or gravity; when the building climbing formwork falls, the falling speed of the building climbing formwork is greater than the reset speed of the anti-fall block, the anti-fall block is blocked on the second gear, and the first gear is blocked on the rack, thereby achieving effective braking of the building climbing formwork and avoiding falling accidents.

[0009] Furthermore, the limiting block is installed on the climbing device, and the limiting block is provided with a receiving groove, with one end of the compression spring located in the receiving groove.

[0010] The beneficial effects of adopting the above-mentioned further technical solution are that the limit block and the anti-fall block can rise or fall synchronously, ensuring the limiting effect of the anti-fall block; the receiving groove structure can ensure the stability of the compression spring installation and ensure the reset effect of the compression spring on the anti-fall block.

[0011] Furthermore, the fall protection tooth includes a fall protection tooth one and a fall protection tooth two, which are connected by a smooth curve transition, with the fall protection tooth one located outside the fall protection tooth two.

[0012] The beneficial effect of adopting the above-mentioned further technical solution is that by setting two anti-fall teeth, the two anti-fall teeth are fully engaged with gear two, thereby improving the braking effect of the drive anti-fall device and improving the reliability of the anti-fall device.

[0013] Furthermore, the actuating gear actuates the anti-fall block to swing through the anti-fall tooth, and the end of the anti-fall tooth is provided with an arc-shaped groove, the shape of which corresponds to the shape of the end of the actuating gear.

[0014] The beneficial effect of adopting the above-mentioned further technical solution is that by setting an arc groove, smooth contact is achieved between the actuating gear and the anti-fall block, avoiding jamming and ensuring the normal lifting and lowering of the building climbing frame.

[0015] Furthermore, at least one of the gears is provided, and the gear is a ratchet.

[0016] The beneficial effects of adopting the above-mentioned further technical solution are that the ratchet structure can prevent the anti-fall block from sliding between the anti-fall block and the second gear when the building climbing formwork falls, effectively reducing the fall distance of the building climbing formwork and improving the braking effect; and setting an appropriate number of the second gears according to the usage requirements can improve the safety factor of the building climbing formwork.

[0017] Furthermore, there are two of each of the gear two, the anti-fall block and the limiting block, with the two gear two located on both sides of the gear one.

[0018] The beneficial effect of adopting the above-mentioned further technical solution is that by setting two gears and anti-fall blocks on both sides of gear one, the anti-fall effect of the building climbing frame can be improved, while saving the overall volume of the drive anti-fall device, making it easy to disassemble and reducing the cost of use.

[0019] Furthermore, it also includes a guide rail and a roller clamping device. The rack is connected to the wall through the guide rail. A groove is provided between the guide rail and the rack. The roller clamping device includes a connecting plate and a roller. The roller is disposed in the groove and moves up and down along the groove. The roller clamping device is connected to the climbing device through the connecting plate.

[0020] The beneficial effects of adopting the above-mentioned further technical solutions are that by setting up the roller clamping device, the overturning of the building climbing formwork can be avoided, ensuring the safety of use; by cooperating with the roller and moving along the groove, the normal lifting and lowering of the building climbing formwork can be ensured.

[0021] Furthermore, the climbing device includes a drive motor, a drive gear, and a climbing gear. The output end of the drive motor is connected to the drive gear, the drive gear meshes with the climbing gear, and the climbing gear meshes with the rack.

[0022] The beneficial effect of adopting the above-mentioned further technical solution is that by driving the drive motor to drive the drive gear to rotate, thereby driving the climbing gear to rotate, the climbing device can move up and down along the rack, which can ensure the stability of power transmission, and at the same time, the structure is simple and the connection is reliable.

[0023] The present invention also includes a lifting system comprising the aforementioned drive and anti-fall device for lifting building climbing scaffolds.

[0024] The beneficial effects of this invention are: by installing a drive anti-fall device on the lifting system, the safe operation of the lifting system can be ensured, thus guaranteeing the safety of construction. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the fall arrestor of the present invention;

[0026] Figure 2 This is a schematic diagram of the fall protection component in Embodiment 1 of the present invention;

[0027] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0028] Figure 4 This is a schematic diagram of the connection between the drive fall arrest device and the building climbing frame in Embodiment 1 of the present invention;

[0029] Figure 5 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0030] Figure 6 This is a schematic diagram of the building climbing formwork ascending in Embodiment 2 of the present invention;

[0031] Figure 7 for Figure 6 A magnified view of a section at point B in the middle;

[0032] Figure 8 This is a schematic diagram of the descent of the building climbing formwork in Embodiment 2 of the present invention;

[0033] Figure 9 This is a schematic diagram of the falling of the building climbing scaffold in Embodiment 2 of the present invention;

[0034] Figure 10 for Figure 9 A magnified view of a section at point C;

[0035] Figure 11 This is a schematic diagram of the structure of Embodiment 3 of the present invention;

[0036] Figure 12 for Figure 11 A magnified view of a section at point D;

[0037] Figure 13 This is a schematic diagram of the falling of the building climbing scaffold in Embodiment 3 of the present invention.

[0038] The attached diagram is labeled as follows: 1. Guide rail; 2. Rack; 3. Main upright; 4. Outer upright; 5. Lower hanging bracket; 6. Foot pedal; 7. Wall; 8. Gearbox; 9. Drive motor; 10. Drive gear; 11. Climbing gear; 12. Gear one; 13. Gear two; 14. Anti-fall block; 15. Limiting block; 16. Wheel clamping device; 17. Compression spring; 18. Actuating gear; 19. Groove; 20. Gear three. Detailed Implementation

[0039] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0040] Example 1

[0041] like Figures 1 to 4 As shown, this invention discloses a drive and fall prevention device for the lifting of a building climbing scaffold, comprising a rack 2, a climbing device, and a fall prevention assembly. The rack 2 is vertically mounted on a wall 7. The side of the climbing device adjacent to the rack 2 is the inner side. The outer side of the climbing device is connected to the building climbing scaffold. The inner side of the climbing device meshes with the rack 2 and moves up and down along the rack 2. The fall prevention assembly includes a limiting block 15, a fall prevention block 14, a first gear 12, and a second gear 13. The fall prevention block 14 is mounted on the climbing device via a first pin and can rotate around the first pin. The first gear 12 and the second gear 13 are mounted on the climbing device via the second pin. The first gear 12 meshes with the rack 2. The second gear 13 is located at the lower end of the fall prevention block 14. The limiting block 15 is located between the second gear 13 and the fall prevention block 14. The fall prevention block 14 is provided with fall prevention teeth that match the second gear 13. The fall prevention teeth are inclined away from the first pin.

[0042] When the building scaffold is rising normally, gear 13 rotates clockwise, and the anti-fall teeth of the anti-fall block 14 are placed on gear 13. Since the anti-fall teeth are inclined away from the pin shaft, when gear 13 rotates, it causes the anti-fall block 14 to rotate around the pin shaft. When the building scaffold falls or descends, gear 13 rotates counterclockwise, and the anti-fall block 14 brakes gear 13 by quickly locking gear 13 through the anti-fall teeth, thereby locking gear 12 on rack 2, and stopping the building scaffold from falling or descending.

[0043] When a slight adjustment to the height of the climbing scaffold is required, the fall arrestor 14 can be rotated around the first pivot and placed on the limit stop 15. After adjustment, the fall arrestor teeth of the fall arrestor 14 can be placed on the second gear 13 to ensure the safety of the climbing scaffold when it is lifted upward.

[0044] The climbing device includes a drive motor 9, a drive gear 10, and a climbing gear 11. The output end of the drive motor 9 is connected to the drive gear 10. The drive gear 10 meshes with the climbing gear 11, and the climbing gear 11 meshes with the rack 2.

[0045] Please refer to Figure 3 As shown, at least one gear 13 is provided, and the gear 13 is a ratchet. When the ratchet is installed, the inclination direction of the ratchet is ensured so that when the building climbing scaffold is rising, the ratchet drives the anti-fall tooth to rotate around the pin. When the building climbing scaffold is descending or falling, the anti-fall tooth locks the ratchet and stops its rotation, thereby achieving rapid braking of the building climbing scaffold and ensuring the safety of the building climbing scaffold.

[0046] In this embodiment, two gears 13, two anti-fall blocks 14, and two limiting blocks 15 are provided, with the two gears 13 located on both sides of the gear 12. By providing two gears 13 and two anti-fall blocks 14 on both sides of the gear 12, the anti-fall effect on the building climbing scaffold can be improved, while saving the overall volume of the drive anti-fall device, ensuring the balance of the drive anti-fall device, and reducing the cost of use.

[0047] Two climbing gears 11 are provided. The two climbing gears 11 are located on the upper and lower sides of the drive gear 10 and respectively mesh with the rack 2, thereby ensuring that the climbing device moves smoothly up and down along the rack 2 and improving the safety factor.

[0048] The climbing device also includes a gearbox 8, with a drive gear 10 and a climbing gear 11 housed within it. The output end of the drive motor 9 passes through the gearbox 8 and connects to the drive gear 10. Pin one, pin two, and a limiting block 15 are mounted on the gearbox 8, with gear one 12 located inside the gearbox 8. By using the gearbox 8, normal meshing between the gears is maintained, preventing construction debris from falling onto the gears and ensuring the normal lifting and lowering of the construction scaffold.

[0049] The building climbing frame includes a main upright 3 and an outer upright 4 arranged in parallel. The lower ends of the main upright 3 and the outer upright 4 are connected to foot pedals 6. The lower end of the main upright 3 is also connected to a lower hanging seat 5. The lower hanging seat 5 and the main upright 3 are connected to the climbing device and move up and down along the rack 2 under the drive of the climbing device.

[0050] The drive and anti-fall device for lifting and lowering a building climbing scaffold also includes a guide rail 1 and a roller clamping device 16. The rack 2 is connected to the wall 7 via the guide rail 1. A groove 19 is provided between the guide rail 1 and the rack 2. The roller clamping device 16 includes a connecting plate and rollers. The rollers are disposed in the groove 19 and move up and down along the groove 19. The roller clamping device 16 is connected to the climbing device via the connecting plate. By setting the roller clamping device 16, overturning during the lifting and lowering of the building climbing scaffold can be avoided, ensuring the normal operation of the building climbing scaffold along the wall 7 and improving safety. By having the rollers cooperate with and move along the groove 19, the frictional resistance between the roller clamping device 16 and the groove 19 is reduced, reducing the power required for lifting and lowering the building climbing scaffold and saving costs.

[0051] The limiting block 15 can be made of bolts, which can also support the anti-fall block 14, save manufacturing costs, and is easy to install.

[0052] In summary, this invention effectively prevents the climbing scaffold from falling by incorporating anti-fall components. When the climbing scaffold falls or descends, the anti-fall block 14 quickly engages with gear 13 via anti-fall teeth, stopping gear 13 and gear 12, which is coaxially arranged with gear 13, from rotating. Gear 12 then engages with rack 2, thus stopping the climbing scaffold from falling or descending and ensuring the safety of the climbing scaffold during lifting. By directly engaging the gears with rack 2, the falling or descending of the climbing scaffold is prevented, reducing the distance the climbing scaffold moves downward and improving the safety performance of the climbing scaffold. The structure is stable and reliable.

[0053] Example 2

[0054] Please refer to Figures 5 to 10 As shown, based on Example 1, Example 2 further improves the fall protection component.

[0055] This invention discloses a drive-and-fall-prevention device for lifting and lowering a building climbing scaffold, comprising a rack 2, a climbing device, and a fall-prevention assembly. The fall-prevention assembly further includes a coaxially arranged actuating gear 18 and a third gear 20, which are mounted on the climbing device. The third gear 20 meshes with the rack 2 on the climbing device. The fall-prevention block 14 is an eccentric swing block, and the center of gravity of the fall-prevention block 14 is located on the same side as the limiting block 15. The actuating gear 18 actuates the fall-prevention block 14 to rotate. The limiting block 15 is provided with a compression spring 17 for resetting the fall-prevention block 14.

[0056] The limiting block 15 is installed on the climbing device, and the limiting block 15 is provided with a receiving groove, with one end of the compression spring 17 located in the receiving groove.

[0057] Specifically, the actuating gear 18 and gear 20 are mounted on the gearbox 8 via pin 3. Gear 20 is located inside the gearbox 8 to ensure normal meshing between gear 20 and rack 2 and to prevent impurities from falling onto gear 20. The actuating gear 18 is located outside the gearbox 8, which makes it easy to observe whether the actuating gear 18 is properly actuating the anti-fall block 14.

[0058] When the climbing device drives the building climbing frame to rise along rack 2, such as Figure 6 and Figure 7 As shown, gear 3 20 rotates along rack 2, thereby driving gear 18 to rotate clockwise. When gear 18 rotates, it causes anti-fall block 14 to rotate around pin 1 and compresses compression spring 17 on limit stop 15, deforming it and ensuring that gear 18 can rotate normally. When the anti-fall tooth of anti-fall block 14 is between two adjacent teeth of gear 18, anti-fall block 14 returns to its original position under the restoring force of compression spring 17. When gear 18 compresses anti-fall block 14 again, the above action is repeated, and the building climbing scaffold rises normally.

[0059] When the climbing device drives the building climbing frame to descend along rack 2, as Figure 8 As shown, gear 3 20 drives the actuating gear 18 to rotate counterclockwise. The actuating gear 18 actuates the anti-fall block 14 to rotate in the opposite direction to the limiting block 15 around the pin shaft, that is, the anti-fall block 14 rotates in the direction closer to the rack 2 around the pin shaft. When the anti-fall tooth is between two adjacent teeth of the actuating gear 18, since the anti-fall block 14 is an eccentric swing block and its center of gravity is located on the side closer to the limiting block 15, the anti-fall block 14 rotates in the direction of the limiting block 15 under the action of eccentric gravity to achieve reset. When the actuating gear 18 actuates the anti-fall block 14 again, the above action is repeated, and the building climbing frame descends normally.

[0060] When the climbing device causes the building scaffolding to fall, such as Figure 9 and Figure 10 As shown, gear 3 20 drives gear 18 to rotate counterclockwise. Gear 18 causes anti-fall block 14 to rotate around pin 1 in the opposite direction to limit stop 15. Since the building climbing frame falls at a high speed, the rotation speed of gear 18 will increase significantly when the building climbing frame falls. The inertial force generated by gear 18 rapidly rotating anti-fall block 14 will overcome the center of gravity of anti-fall block 14 and shift the center of gravity of anti-fall block 14 to the other side of pin 1, that is, close to rack 2. Then anti-fall block 14 continues to rotate until it contacts gear 2 13. Gear 2 13 is blocked by anti-fall block 14 and stops rotating, thereby blocking gear 1 12 on rack 2, so that the building climbing frame stops falling and ensures the safety of building climbing frame use.

[0061] In summary, this invention, by setting up a toggle gear 18 and synchronizing its raising and lowering with the building scaffold, allows the toggle gear 18 to rotate rapidly when the scaffold falls, causing the anti-fall block 14 to quickly engage with the gear 13, thus quickly preventing the scaffold from falling. This shortens the scaffold's descent distance and improves its safety. The automatic prevention of the scaffold's fall is achieved through the cooperation of the toggle gear 18, the eccentric anti-fall block 14, and the limit stop 15. The power transmission is reliable, the structure is simple, and the safety of use is enhanced.

[0062] Example 3

[0063] Please refer to Figures 11 to 13 As shown, Example 3 further improves the structure of the fall arrestor block 14.

[0064] This invention discloses a drive anti-fall device for lifting and lowering a building climbing scaffold, which includes a rack 2, a climbing device and an anti-fall component. The anti-fall component includes a limit block 15, an anti-fall block 14, a first gear 12 and a second gear 13. The anti-fall block 14 is provided with anti-fall teeth that match the second gear 13.

[0065] At least one anti-fall tooth is provided; in this embodiment, two anti-fall teeth are provided, including anti-fall tooth one and anti-fall tooth two. Anti-fall tooth one and anti-fall tooth two are connected by a smooth curve transition, and anti-fall tooth one is located on the outer side of anti-fall tooth two. The side adjacent to pin one is the inner side. By providing two anti-fall teeth, it is ensured that the anti-fall tooth fully meshes with gear two 13, improving the braking effect of the drive anti-fall device and enhancing the reliability of the anti-fall mechanism.

[0066] The actuating gear 18 actuates the anti-fall block 14 by means of the anti-fall tooth 1. The end of the anti-fall tooth 1 has an arc-shaped groove, the shape of which corresponds to the shape of the end of the actuating gear 18. By setting the arc-shaped groove, smooth contact is achieved between the actuating gear 18 and the anti-fall block 14, avoiding jamming and ensuring the normal lifting and lowering of the building scaffold.

[0067] The present invention also includes a lifting system comprising the aforementioned drive and anti-fall device for lifting building climbing scaffolds.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A drive-type fall arrestor for lifting and lowering construction scaffolding, characterized in that, The system includes a rack (2), a climbing device, and a fall arrestor. The rack (2) is vertically mounted on the wall (7). The outer side of the climbing device is connected to the building scaffold, and the inner side meshes with the rack (2) and moves up and down along the rack (2). The fall arrestor includes a limiting block (15), a fall arrestor block (14), a first gear (12), and a second gear (13). The fall arrestor block (14) is mounted on the climbing device via a first pin and can rotate around the first pin. Gear 1 (12) and gear 2 (13) are mounted on the climbing device via pin 2. Gear 1 (12) meshes with rack (2). Gear 2 (13) is located at the lower end of anti-fall block (14). Limiting block (15) is located between gear 2 (13) and anti-fall block (14). Anti-fall teeth that match gear 2 (13) are provided on anti-fall block (14). The anti-fall teeth are inclined away from pin 1. The fall arrestor assembly also includes a coaxially arranged actuating gear (18) and a third gear (20), which are mounted on the climbing device. The third gear (20) meshes with the rack (2). The fall arrestor block (14) is an eccentric swing block. The center of gravity of the fall arrestor block (14) is on the same side as the limiting block (15). The actuating gear (18) actuates the fall arrestor block (14) to rotate. The limiting block (15) is provided with a compression spring (17) for resetting the fall arrestor block (14). When the building climbing frame is rising or falling normally, the gear (18) is turned to rotate the anti-fall block (14). The anti-fall block (14) is automatically reset under the action of the compression spring (17) or gravity. When the building climbing frame falls, the speed of the falling building climbing frame is greater than the speed of the anti-fall block (14) reset. The anti-fall block (14) is stuck on the gear two (13), and the gear one (12) is stuck on the rack (2), so as to achieve effective braking of the building climbing frame.

2. The drive-type fall arrestor according to claim 1, characterized in that, The limiting block (15) is installed on the climbing device. The limiting block (15) is provided with a receiving groove, and one end of the compression spring (17) is located in the receiving groove.

3. The drive-type fall arrestor according to claim 1, characterized in that, The fall protection tooth includes fall protection tooth one and fall protection tooth two, which are connected by a smooth curve transition, and fall protection tooth one is located outside fall protection tooth two.

4. The drive-type fall arrestor according to claim 3, characterized in that, The actuating gear (18) actuates the anti-fall block (14) to swing through the anti-fall tooth. The end of the anti-fall tooth is provided with an arc-shaped groove, the shape of which corresponds to the shape of the end of the actuating gear (18).

5. The drive-type fall arrestor according to claim 1, characterized in that, At least one gear (13) is provided, and the gear (13) is a ratchet.

6. The drive-type fall arrestor according to claim 5, characterized in that, Two gears (13), two anti-fall blocks (14) and two limit blocks (15) are provided respectively, and the two gears (13) are located on both sides of the gear (12).

7. The drive-type fall arrestor according to claim 1, characterized in that, It also includes a guide rail (1) and a roller clamping device (16). The rack (2) is connected to the wall (7) through the guide rail (1). A groove (19) is provided between the guide rail (1) and the rack (2). The roller clamping device (16) includes a connecting plate and a roller. The roller is set in the groove (19) and moves up and down along the groove (19). The roller clamping device (16) is connected to the climbing device through the connecting plate.

8. The drive-type fall arrestor according to claim 1, characterized in that, The climbing device includes a drive motor (9), a drive gear (10) and a climbing gear (11). The output end of the drive motor (9) is connected to the drive gear (10). The drive gear (10) meshes with the climbing gear (11), and the climbing gear (11) meshes with the rack (2).

9. A lifting system, characterized in that, Includes the drive-type fall arrestor as described in any one of claims 1 to 8.

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