A personnel falling prevention device for scaffold erection and dismantling and a falling prevention method

Abstract

The application discloses a personnel falling prevention device for scaffold erection and dismounting and a falling prevention method, and relates to the field of construction safety devices.The technical scheme is as follows: the scaffold comprises a plurality of cubic frames formed by a plurality of steel pipes; the personnel falling prevention device comprises a supporting mechanism which can be climbed or descended into the cubic frames at different heights and can be supported in the cubic frames; a vertical rod is detachably connected to the supporting mechanism; a horizontal rod is arranged at the end of the vertical rod away from the supporting mechanism; the horizontal rod can rotate in the circumferential direction with the vertical rod as the axis in the horizontal plane; the horizontal rod can cover the working area required in the scaffold erection and dismounting process after rotating at least 90 degrees; a safety hook is slidably connected to the horizontal rod along the length direction of the horizontal rod; and a safety rope is connected to the safety hook.The application reduces the labor intensity of the construction personnel, improves the working efficiency, and effectively guarantees the safety of the construction personnel.

Description

Technical Field

[0001] This invention relates to the field of construction safety devices, and more specifically, to a fall prevention device and method for scaffolding erection and dismantling. Background Technology

[0002] Scaffolding is a temporary working platform mainly used on construction sites to facilitate worker operations, material transportation, and to solve vertical and horizontal transportation problems. There are many types of scaffolding, which can be divided into wooden scaffolding, bamboo scaffolding, and steel pipe scaffolding according to different materials, among which steel pipe scaffolding is more widely used.

[0003] Scaffolding is typically erected from the bottom up and dismantled from the top down. During the erection and dismantling of scaffolding, fall arrest devices are required to prevent workers from falling. For example, Chinese Patent Publication No. CN115478678A discloses a fall arrest device for scaffolding erection. Its key technical features include: a scaffolding body with two sets of special fixing mechanisms detachably connected to it; each set of special fixing mechanisms is connected to a locking mechanism; a hanging mechanism is connected between the two locking mechanisms; and a reset mechanism is connected to the hanging mechanism. The reset mechanism is detachably connected to one of the locking mechanisms. At the initial stage of each layer of scaffolding erection, uprights are installed at appropriate intervals on the existing scaffolding body. High-strength stainless steel cables are installed between adjacent uprights near their tops to secure workers' safety ropes. By attaching the safety ropes to the high-strength stainless steel cables, the workers' activity space is further increased, eliminating the need to switch safety hooks back and forth.

[0004] Although the above method sets up safety anchors at the top of the scaffolding to ensure the safety of the workers during the scaffolding erection process, it requires manual upward movement of the uprights and reinstallation and fixation of the uprights on the scaffolding after every few layers of scaffolding are erected, which requires a lot of manual labor and results in low work efficiency.

[0005] Therefore, a new solution is needed to address this problem. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a fall prevention device and method for scaffolding erection and dismantling. This invention reduces the labor intensity of construction workers, improves work efficiency, and effectively protects the safety of construction workers.

[0007] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a fall prevention device for scaffolding erection and dismantling, wherein the scaffolding includes multiple cubic frames composed of several steel pipes, the fall prevention device includes a support mechanism that can climb or descend into cubic frames at different heights and can be fixed within the cubic frames, a vertical pole is detachably connected to the support mechanism, a horizontal bar is provided at the end of the vertical pole away from the support mechanism, the horizontal bar can rotate in a horizontal plane around the vertical pole as an axis in a circumferential direction, the horizontal bar can cover the working area required during the scaffolding erection and dismantling process after rotating at least 90 degrees, and a safety hook is slidably connected to the horizontal bar along its length direction, and a safety rope is connected to the safety hook.

[0008] In one embodiment, the support mechanism includes a connecting frame, a support component slidably connected longitudinally to the connecting frame, and a drive component for driving the support component to slide relative to the connecting frame. The support component is configured as four, which are respectively disposed on the left, right, front, and rear sides of the connecting frame. Each support component is equipped with the drive component. The sliding direction and sliding speed of two support components located in relative positions are the same. The four support components can be simultaneously supported within a cube frame, or two of the opposite support components can be supported within the cube frame, while the other two opposite support components do not contact the cube frame.

[0009] In one embodiment, the support assembly includes a slide block slidably connected to a connecting frame, an electric telescopic rod fixedly connected to the slide block, and a support block fixedly connected to the output end of the electric telescopic rod. The support block is arranged parallel to the slide block. The slide block is provided with a T-shaped groove, and the connecting frame is provided with a T-shaped slide rail. The T-shaped slide rail is slidably adapted to the T-shaped groove, and the electric telescopic rod has a self-locking capability.

[0010] In one embodiment, the support block is provided with arc-shaped slots that are adapted to the upper and lower horizontally arranged steel pipes of the cube frame, and an anti-slip pad is arc-shaped and fitted inside the arc-shaped slot.

[0011] In one embodiment, the drive assembly includes a servo geared motor fixed on a connecting frame, a gear fixed on the output end of the servo geared motor, and a rack fixed on a slide, wherein the gear meshes with the rack, and the servo geared motor has a self-locking capability.

[0012] In one embodiment, a first flange is fixedly connected to the connecting frame, and a second flange is fixedly connected to the upright. The first flange and the second flange are detachably connected by a first bolt.

[0013] In one embodiment, a connecting plate is fixedly connected to the upright, and a rotating seat is rotatably connected to the connecting plate. The rotating seat is provided with a connecting groove and a threaded groove communicating with the connecting groove. The crossbar extends into the connecting groove, and a second bolt that can lock the crossbar onto the rotating seat is threadedly connected in the threaded groove.

[0014] In one embodiment, a limit ring is fixedly connected to one end of the crossbar, and a collar is sleeved on the crossbar between the limit ring and the rotating seat, and the safety hook is fixedly connected to the collar.

[0015] In one embodiment, a counterweight is provided at the other end of the crossbar, and the distance between the limiting ring and the rotating seat is greater than the distance between the counterweight and the rotating seat.

[0016] A method for preventing falls, comprising any of the aforementioned scaffolding erection and dismantling fall prevention devices, further comprising the following steps:

[0017] S1. Erect the first layer of scaffolding and the second layer of scaffolding, so that a first layer of cubic frame is formed between the first layer of scaffolding and the second layer of scaffolding;

[0018] S2. Secure the support mechanism within the first-layer cubic frame;

[0019] S3. First connect the horizontal bar to the vertical bar, then connect the vertical bar to the support mechanism.

[0020] S4. Connect the end of the safety rope furthest from the safety hook to the construction worker;

[0021] S5. After completing step S4, the third layer of scaffolding is erected. At this time, the horizontal bar is located above the third layer of scaffolding. After the third layer of scaffolding is erected, a second layer of cubic frame is formed between the second layer of scaffolding and the third layer of scaffolding.

[0022] S6. After completing step S5, the support mechanism climbs up and is fixed in the second-layer cube frame to erect the fourth-layer scaffolding.

[0023] S7. Repeat steps S5 and S6 to complete the erection of scaffolding for all layers.

[0024] In summary, the present invention has the following beneficial effects: Through the arrangement of the support mechanism, uprights, and horizontal bars, the support mechanism can automatically climb and be secured within the cubic frame of the next lower level of scaffolding during the initial erection of each scaffolding layer. This eliminates the need for repeated manual disassembly and reassembly of the uprights and scaffolding, improving the efficiency of longitudinal adjustment of the uprights. Furthermore, the horizontal bars are all located above the scaffolding layer, preventing interference with its erection. The horizontal bars are rotatable, and the safety ropes can slide along them, allowing construction workers to cover all work areas required during scaffolding erection and disassembly without the need to switch safety ropes repeatedly, reducing the labor intensity of construction workers. Additionally, this design reduces the need for excessively long safety ropes, ensuring that if a worker falls, they will only move a short distance downwards, minimizing the risk of swaying or impact, further guaranteeing worker safety. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a fall prevention device for scaffolding erection and dismantling, as described in an embodiment of this application.

[0026] Figure 2 This is a schematic diagram of the support mechanism in the scaffolding erection and dismantling anti-fall device according to an embodiment of this application;

[0027] Figure 3 This is a schematic diagram illustrating the working state of the scaffolding erection and dismantling anti-fall device in the context of an embodiment of this application during scaffolding erection.

[0028] In the diagram: 1. Horizontal bar; 2. Vertical bar; 3. Support mechanism; 31. Connecting frame; 311. T-shaped slide rail; 32. Slide seat; 33. Electric telescopic rod; 34. Support block; 341. Arc-shaped slot; 35. Servo geared motor; 36. Gear; 37. Rack; 4. First flange; 5. Second flange; 6. First bolt; 7. Connecting plate; 8. Rotating seat; 9. Second bolt; 10. Counterweight; 11. Limiting ring; 12. Collar; 13. Safety hook; 14. Steel pipe; 141. Cube frame. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] like Figures 1 to 3As shown, an embodiment of this application provides a fall protection device for scaffolding erection and dismantling. The scaffolding includes multiple cubic frames 141 composed of several steel pipes 14. The specific structure of the scaffolding and the connection method of each steel pipe 14 adopt existing technology and will not be described in detail in this embodiment. The fall protection device includes a support mechanism 3 that can climb or descend into cubic frames 141 at different heights and can be fixed within the cubic frames 141. A vertical pole 2 is detachably connected to the support mechanism 3. A horizontal bar 1 is provided at the end of the vertical pole 2 away from the support mechanism 3. The horizontal bar 1 can rotate in a horizontal plane around the vertical pole 2 in a circumferential direction. After rotating at least 90 degrees, the horizontal bar 1 can cover the working area required during the scaffolding erection and dismantling process. A safety hook 13 is slidably connected to the horizontal bar 1 along its length, and a safety rope is connected to the safety hook 13. It also includes a PLC controller and a control panel electrically connected to the PLC controller. The support mechanism 3 is electrically connected to the PLC controller. The control panel is adapted to send control commands to the PLC controller. The PLC controller is adapted to control the support mechanism 3 to climb or be fixed in the cube frame 141 according to the control commands. Other electrical components, including but not limited to the power module and the specific control method of the PLC controller, all adopt existing technologies and will not be described in detail in this embodiment.

[0031] It should be noted that if the support mechanism 3 is placed at one corner of the scaffold, the length of the horizontal bar 1 should be longer. In this case, rotating it 90 degrees will cover the working area required during the erection and dismantling of the scaffold. If the support mechanism 3 is placed in the center of the scaffold, the length of the horizontal bar 1 can be shorter. In this case, rotating the horizontal bar 1 360 degrees will cover the working area required during the erection and dismantling of the scaffold. The specific placement of the support mechanism 3 can be reasonably configured according to actual usage requirements.

[0032] When the aforementioned fall protection device is in operation, the first and second layers of scaffolding are erected first, forming a first-layer cubic frame 141 between them. Next, the support mechanism 3 is secured within the first-layer cubic frame 141. Then, the horizontal bar 1 is connected to the vertical bar 2, and the vertical bar 2 is connected to the support mechanism 3. The end of the safety rope furthest from the safety hook 13 is then connected to the worker, and the third layer of scaffolding is erected. At this point, the horizontal bar 1 is positioned above the third layer of scaffolding. After the third layer is erected, a second-layer cubic frame 141 is formed between the second and third layers. The support mechanism 3 is then raised and secured within the second-layer cubic frame 141, and the fourth layer of scaffolding is erected. This process is repeated until all layers of scaffolding are erected.

[0033] In the above method, through the setting of support mechanism 3, uprights 2 and horizontal bars 1, at the initial stage of the erection of each layer of scaffolding, support mechanism 3 can automatically climb and be fixed in the cubic frame 141 located on the next layer of scaffolding. It is not necessary to manually disassemble and reassemble the uprights 2 with the scaffolding multiple times, which is conducive to improving the efficiency of longitudinal adjustment of the uprights 2. The horizontal bars 1 are all located above the scaffolding of that layer, so they will not interfere with the erection of the scaffolding of that layer. The horizontal bars 1 can rotate and the safety rope can slide along the horizontal bars 1, so that the range of activity of the construction workers can cover all the work areas required during the erection and dismantling of the scaffolding. There is no need to switch the safety rope back and forth, which reduces the labor intensity of the construction workers. At the same time, through this setting, the safety rope of the construction workers does not need to be set very long. In this way, if the construction workers fall, they will only move downward a short distance, which will not easily cause swaying or other impact risks, further ensuring the safety of the construction workers.

[0034] In this embodiment, the support mechanism 3 includes a connecting frame 31, a support assembly slidably connected longitudinally to the connecting frame 31, and a drive assembly for driving the support assembly to slide relative to the connecting frame 31. The connecting frame 31 has an overall cross-shaped structure. Four support assemblies are provided, respectively located on the left, right, front, and rear sides of the connecting frame 31. Each support assembly is equipped with the drive assembly. The sliding direction and sliding speed of two support assemblies located in opposite positions are the same, allowing the two opposite support assemblies to slide simultaneously and in the same direction relative to the connecting frame 31. All four support assemblies can be simultaneously supported within the cubic frame 141, or two opposite support assemblies can be supported within the cubic frame 141 while the other two opposite support assemblies do not contact the cubic frame 141.

[0035] Specifically, the support assembly includes a slide block 32 slidably connected to the connecting frame 31, an electric telescopic rod 33 fixedly connected to the slide block 32, and a support block 34 fixedly connected to the output end of the electric telescopic rod 33. The support block 34 is arranged parallel to the slide block 32, and two electric telescopic rods 33 are symmetrically arranged vertically on each slide block 32, thus providing stable support force for the support block 34. The slide block 32 is provided with a T-shaped slide groove, and the connecting frame 31 is provided with a T-shaped slide rail 311, which slides within the T-shaped slide groove. The electric telescopic rod 33 has a self-locking capability, and the electric telescopic rod 33 can specifically be a self-locking electric cylinder with heavy load capacity.

[0036] Specifically, the drive assembly includes a servo geared motor 35 fixed on the upper side of the connecting frame 31, a gear 36 fixed on the output end of the servo geared motor 35, and a rack 37 fixed on the slide block 32. The gear 36 meshes with the rack 37. The servo geared motor 35 has a self-locking capability. Specifically, a self-locking servo geared motor 35 is adopted. Each servo geared motor 35 is electrically connected to the PLC controller.

[0037] Specifically, the servo geared motor 35 is set with forward rotation step stroke and reverse rotation step stroke. Within the range of forward rotation step stroke and reverse rotation step stroke, the slide 32 will not slip out of the T-shaped slide rail 311. Of course, other limit structures such as power-off switches can also be set to limit the slide 32 from slipping out of the T-shaped slide rail 311.

[0038] Specifically, in order to further improve the stability of the static connection between the slide block 32 and the T-shaped slide rail 311, a locking nut can be provided on the slide block 32. When the locking nut is tightened, the slide block 32 can be locked on the T-shaped slide rail 311.

[0039] When the aforementioned support mechanism 3 is in operation, the four support blocks 34 respectively support and abut against the left, right, front, and rear sides of the first-layer cubic frame 141, thereby fixing the support mechanism 3 within the first-layer cubic frame 141. When it is necessary to climb to the second-layer cubic frame 141, the support blocks 34 located on the front and rear sides retract to disconnect from the first-layer cubic frame 141. The servo reduction motors 35 on the front and rear sides drive the gears 36 on the front and rear sides to rotate, thereby causing the support blocks 34 on the front and rear sides to slide upward into the second-layer cubic frame 141. Then the front and rear sides... The support block 34 is pressed against the front and rear sides of the second-layer cubic frame 141. The support blocks 34 on the left and right sides are retracted, and the servo reduction motors 35 on the front and rear sides continue to operate. At this time, since the support blocks 34 on the front and rear sides are in a fixed state, the connecting frame 31 will slide upward relative to the support blocks 34 on the front and rear sides and enter the second-layer cubic frame 141. The support blocks 34 on the left and right sides extend and press against the left and right sides of the second-layer cubic frame 141, thereby completing the climbing and fixing of the support mechanism 3 from the first-layer cubic frame 141 to the second-layer cubic frame 141.

[0040] The above method enables the automatic climbing and stabilization of the support mechanism 3, eliminating the need for a large amount of manual labor and effectively improving work efficiency.

[0041] In this embodiment, the support block 34 is provided with arc-shaped slots 341 that are adapted to the upper and lower horizontally arranged steel pipes 14 of the cubic frame 141. An anti-slip pad is arc-shaped and fitted inside the arc-shaped slot 341. The arc-shaped slot 341 and the anti-slip pad are provided to further improve the stability of the support block 34 and the cubic frame 141.

[0042] In this embodiment, a first flange 4 is fixedly connected to the connecting frame 31, and a second flange 5 is fixedly connected to the upright 2. The first flange 4 and the second flange 5 are detachably connected by a first bolt 6.

[0043] The above configuration facilitates the assembly and disassembly of the upright 2 and the connecting frame 31.

[0044] In this embodiment, a connecting plate 7 is fixedly connected to the upright 2, and a rotating seat 8 is rotatably connected to the connecting plate 7. To enhance the flexibility of rotation, a plane bearing can be provided between the connecting plate 7 and the rotating seat 8. The rotating seat 8 is provided with a connecting groove and a threaded groove communicating with the connecting groove. The crossbar 1 extends into the connecting groove, and a second bolt 9 is threadedly connected in the threaded groove to lock the crossbar 1 onto the rotating seat 8. The second bolt 9 facilitates the replacement of crossbars 1 of different lengths according to usage requirements. During operation, when the construction personnel move their position, they can drive the crossbar 1 to rotate. Of course, it is understandable that, to save effort, an auxiliary motor can be provided on the connecting plate 7 and the rotating seat 8 to drive the crossbar 1 to rotate according to usage requirements.

[0045] In this embodiment, a limiting ring 11 is fixedly connected to one end of the crossbar 1, and a collar 12 is sleeved on the crossbar 1 between the limiting ring 11 and the rotating seat 8. The safety hook 13 is fixedly connected to the collar 12.

[0046] In this embodiment, a counterweight 10 is provided at the other end of the crossbar 1, and the distance between the limiting ring 11 and the rotating seat 8 is greater than the distance between the counterweight 10 and the rotating seat 8. The counterweight 10 helps to balance the downward pressure on the side of the crossbar 1 near the limiting ring 11, so that the crossbar 1 is always in a horizontal and stable state.

[0047] The present invention also discloses a fall prevention method, including any of the aforementioned fall prevention devices for scaffolding erection and dismantling, and further comprising the following steps:

[0048] S1. Erect the first layer of scaffolding and the second layer of scaffolding, so that a first layer of cubic frame 141 is formed between the first layer of scaffolding and the second layer of scaffolding;

[0049] S2. Secure the support mechanism 3 within the first-layer cubic frame 141;

[0050] S3. First connect the horizontal bar 1 to the vertical bar 2, then connect the vertical bar 2 to the support mechanism 3.

[0051] S4. Connect the end of the safety rope away from the safety hook 13 to the construction worker;

[0052] S5. After completing step S4, the third layer of scaffolding is erected. At this time, the horizontal bar 1 is located above the third layer of scaffolding. After the third layer of scaffolding is erected, a second layer of cubic frame 141 is formed between the second layer of scaffolding and the third layer of scaffolding.

[0053] S6. After completing step S5, the support mechanism 3 climbs up and is fixed in the second-layer cube frame 141 to erect the fourth-layer scaffolding.

[0054] S7. Repeat steps S5 and S6 to complete the erection of scaffolding for all layers.

[0055] Understandably, when the scaffolding is dismantled, the support mechanism 3 can move from top to bottom to provide safety for construction workers during the dismantling process.

[0056] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A fall protection device for scaffolding erection and dismantling, wherein the scaffolding comprises multiple cubic frames composed of several steel pipes, characterized in that: The fall protection device includes a support mechanism (3) that can climb or descend into a cubic frame at different heights and can be fixed within the cubic frame. The support mechanism (3) is detachably connected to a vertical pole (2). A horizontal bar (1) is provided at the end of the vertical pole (2) away from the support mechanism (3). The horizontal bar (1) can rotate in the horizontal plane around the vertical pole (2) as the axis. After the horizontal bar (1) rotates at least 90 degrees, it can cover the working area required during the erection and dismantling of the scaffold. A safety hook (13) is slidably connected to the horizontal bar (1) along its length. A safety rope is connected to the safety hook (13). The support mechanism (3) includes a connecting frame (31), a support component that is slidably connected to the connecting frame (31) in the longitudinal direction, and a drive component for driving the support component to slide relative to the connecting frame (31). The support component is configured as four, and the four support components are respectively arranged on the left, right, front and rear sides of the connecting frame (31). Each support component is equipped with the drive component. The sliding direction and sliding speed of two support components located in relative positions are the same. The four support components can be supported simultaneously in the cube frame or two of the opposite support components can be supported in the cube frame. The other two opposite support components do not contact the cube frame.

2. The scaffolding erection and dismantling fall prevention device according to claim 1, characterized in that: The support assembly includes a slide block (32) slidably connected to the connecting frame (31), an electric telescopic rod (33) fixedly connected to the slide block (32), and a support block (34) fixedly connected to the output end of the electric telescopic rod (33). The support block (34) is arranged parallel to the slide block (32). The slide block (32) is provided with a T-shaped groove, and the connecting frame (31) is provided with a T-shaped slide rail (311). The T-shaped slide rail (311) is slidably adapted to the T-shaped groove, and the electric telescopic rod (33) has a self-locking capability.

3. The scaffolding erection and dismantling fall protection device according to claim 2, characterized in that: The support block (34) is provided with arc-shaped slots (341) that are adapted to the upper and lower horizontally arranged steel pipes of the cubic frame, and an anti-slip pad is arc-shaped and fitted inside the arc-shaped slots (341).

4. The scaffolding erection and dismantling fall prevention device according to claim 2, characterized in that: The drive assembly includes a servo geared motor (35) fixed on a connecting frame (31), a gear (36) fixed on the output end of the servo geared motor (35), and a rack (37) fixed on a slide (32). The gear (36) meshes with the rack (37), and the servo geared motor (35) has a self-locking capability.

5. The scaffolding erection and dismantling fall protection device according to claim 2, characterized in that: A first flange (4) is fixedly connected to the connecting frame (31), and a second flange (5) is fixedly connected to the upright (2). The first flange (4) and the second flange (5) are detachably connected by a first bolt (6).

6. The scaffolding erection and dismantling fall protection device according to claim 1, characterized in that: A connecting plate (7) is fixedly connected to the upright (2), and a rotating seat (8) is rotatably connected to the connecting plate (7). The rotating seat (8) is provided with a connecting groove and a threaded groove communicating with the connecting groove. The crossbar (1) extends into the connecting groove, and a second bolt (9) is threadedly connected in the threaded groove to lock the crossbar (1) onto the rotating seat (8).

7. The scaffolding erection and dismantling fall protection device according to claim 6, characterized in that: One end of the crossbar (1) is fixedly connected to a limiting ring (11), and a collar (12) is sleeved on the crossbar (1) between the limiting ring (11) and the rotating seat (8). The safety hook (13) is fixedly connected to the collar (12).

8. The scaffolding erection and dismantling fall protection device according to claim 7, characterized in that: The other end of the crossbar (1) is provided with a counterweight (10), and the distance between the limiting ring (11) and the rotating seat (8) is greater than the distance between the counterweight (10) and the rotating seat (8).

9. A method for preventing falls, comprising a fall prevention device for scaffolding erection and dismantling as described in any one of claims 1-8, characterized in that: It also includes the following steps: S1. Erect the first layer of scaffolding and the second layer of scaffolding, so that a first layer of cubic frame is formed between the first layer of scaffolding and the second layer of scaffolding; S2. Secure the support mechanism (3) within the first-layer cubic frame; S3. First connect the horizontal bar (1) to the vertical bar (2), then connect the vertical bar (2) to the support mechanism (3); S4. Connect the end of the safety rope away from the safety hook (13) to the construction worker; S5. After completing step S4, the third layer of scaffolding is erected. At this time, the horizontal bar (1) is located above the third layer of scaffolding. After the third layer of scaffolding is erected, a second layer of cubic frame is formed between the second layer of scaffolding and the third layer of scaffolding. S6. After completing step S5, the support mechanism (3) climbs up and is fixed in the second-layer cube frame to erect the fourth-layer scaffolding. S7. Repeat steps S5 and S6 to complete the erection of scaffolding for all layers.

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