Aluminum alloy attached lifting scaffold

Abstract

The present invention relates to the technical field of lifting scaffolding, and specifically to an aluminum alloy attached lifting scaffolding, comprising a transverse beam, a longitudinal beam, a lateral beam, a triangular brace, a protective grid, a scaffolding board and a ladder, wherein the ladder is arranged on the inner side of the scaffolding through a connecting piece, and the connecting piece comprises a crawling rail, which is fixed to the longitudinal beam by screws. The present invention transfers the weight of the ladder to the crawling rail through a rest roller and an arc groove, thereby increasing the pressure-bearing area of ​​the overall structure, avoiding local stress concentration, and completely solving the deformation problem. The transverse limiting roller and the crawling rail are in close contact to form a three-point positioning, which, in conjunction with the torsion spring limiting buckle, significantly enhances the ability to resist lateral shaking. The support rod fulcrum is close to the limiting roller, and the effective end of the traction rope is located at the long power arm, which greatly reduces the force required for lifting the ladder. When moving, only the elastic force of two torsion springs needs to be overcome, and the operating resistance is reduced, so that the ladder can be quickly switched between the positioning and sliding states, reducing the load on the scaffolding.

Description

Technical Field

[0001] The invention relates to the technical field of lifting scaffolds, in particular to an aluminum alloy attached lifting scaffold. Background Art

[0002] Attached lifting scaffolding is a system used for perimeter protection and work platforms in high-rise building construction. Attached to the building structure, it rises and falls floor by floor as construction progresses, replacing traditional floor-mounted scaffolding with high efficiency, safety, and cost-effectiveness.

[0003] The invention patent with authorization announcement number CN116537509B discloses an attached lifting scaffolding, including cross beams, longitudinal beams, lateral beams, triangular braces, protective grids, scaffolding boards and ladders. The ladder is fixed to the inner side of the scaffolding through a connecting piece. The connecting piece includes a crawling rail and a mounting frame. A plurality of positioning columns are protruding from the inner wall of the crawling rail. The ladder is fixedly connected to one side of the mounting frame, and the other side of the mounting frame is slidably connected to the crawling rail. A docking strip is provided on the inner wall of the mounting frame, and a limit assembly is also provided on the docking strip. The limit assembly includes a right insert strip and a left insert strip. The right insert strip and the left insert strip are driven by a pushing assembly and move linearly toward each other on the docking strip.

[0004] However, the above invention patent still has the following problems: Paragraph 48 of the specification states that "hold the ladder and put the mounting bracket on the back of the ladder onto the climbing rail, then press the whole ladder inward, and the positioning column on the climbing rail is clamped in the clamping hole on the docking strip, thereby limiting the upper and lower positions of the mounting bracket; at this time, since the ends of the right and left insert strips are set in an arc shape, they can move normally to the bite groove, and under the elastic action of the lateral springs, the right and left insert strips can be synchronously clamped in the bite groove." Workers who install and dismantle the ladder need to resist the elastic force of several lateral springs to complete the movement or disassembly of the ladder. In actual operation, the elastic force of the springs is superimposed, resulting in a large force to be overcome in a single operation. At the same time, coupled with the weight of the ladder itself, the process of moving the ladder is very laborious. At the same time, the weight of the workers climbing falls on the positioning column, which can easily cause the positioning column to deform. Therefore, an aluminum alloy attached lifting scaffold is proposed to solve the above-mentioned problems. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems in the background technology and to propose an aluminum alloy attached lifting scaffold.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] An aluminum alloy attached lifting scaffold comprises a horizontal beam, a longitudinal beam, a lateral beam, a triangular brace, a protective grid, a scaffolding board and a ladder. The horizontal beam, the longitudinal beam and the lateral beam are all columnar. The horizontal beam and the lateral beam are vertically butted and arranged parallel to the ground. The longitudinal beam is arranged perpendicular to the ground. The protective grid is fixed to the outside of the scaffold. The ladder is arranged on the inside of the scaffold via a connector. The scaffolding board is horizontally placed on the inside of the horizontal beam via screws. A triangular brace is provided at the lower end of each set of scaffolding boards, and the triangular brace is fixed to the horizontal beam via screws.

[0008] The connecting part includes a climbing rail, which is fixed to the longitudinal beam by screws. The outer wall of the ladder is fixed with four transverse limiting rollers, and a same rest roller is fixed between every two transverse limiting rollers. The ladder is installed on the climbing rail via the rest rollers. The inner wall of the climbing rail is rotatably connected to a plurality of linearly distributed long shaft rods. Both ends of each long shaft rod are provided with a lifting assembly to assist the ladder to detach from the climbing rail.

[0009] The lifting assembly includes a second gear, a winding wheel, a traction rope and a supporting rod. The supporting rod is composed of a semi-arc plate and a straight plate. The second gear is fixed to the outer wall of the long shaft rod. The second gear is driven by the rotating assembly to drive the long shaft rod to rotate. The winding wheel is fixed to the end of the long shaft rod. The two ends of the traction rope are respectively fixed to the winding wheel and the supporting rod. The turning point of each supporting rod is rotatably connected to the crawling rail through a rotating shaft, and an anti-slip assembly is provided at the end of each supporting rod.

[0010] Preferably, the anti-slip assembly includes a limiting buckle, a first shaft, a contact block 1, a contact block 2 and two torsion springs 1. The first shaft is rotatably connected to the supporting rod, the first shaft is fixedly connected to the limiting buckle, the two torsion springs 1 are arranged around the outer wall of the first shaft, both ends of the two torsion springs 1 are fixedly connected to the supporting rod and the limiting buckle, the contact block 2 is fixedly connected to the end of the first shaft, the contact block 1 is fixedly connected to the crawling rail, and the contact block 1 is located at a position where the contact block 2 is rotated ninety degrees with the rotation axis as the axis point.

[0011] Preferably, the rotating assembly includes three chains, which are mounted on the outer walls of several chains located on the same side of the crawling rail. The inner walls of the chains are movably connected with three first gears, which are rotatably connected to the crawling rail through the second shaft. The three first gears are located at three equal parts of the longitudinal beam.

[0012] Preferably, the outer wall of the second shaft is slidably connected to a rotating disk, a knob is fixedly connected to a side of the rotating disk away from the second shaft, and an insertion rod is fixedly connected to the outer wall of the rotating disk close to the second shaft.

[0013] Preferably, the outer walls of the three rotating disks are rotatably connected to a same sliding plate, and the sliding plate is slidably connected to the crawling rail.

[0014] Preferably, the crawling rail is provided with a plurality of slots 2 for accommodating the insertion rods, and the crawling rail is provided with two slots 1 for accommodating the two ends of the sliding plate.

[0015] Preferably, a plurality of limit frames for limiting the position of the traction rope are fixedly connected to the outer wall of the crawling rail, and each limit frame is located below each limit buckle.

[0016] Preferably, a plurality of linearly distributed buffer components are provided on the inner side of the climbing rail to assist in height positioning of the ladder when the ladder moves. The buffer component includes a baffle, which is rotatably connected to the inner wall of the climbing rail through a set shaft. Two torsion springs are fixed on both sides of the baffle, and the end of each torsion spring away from the baffle is fixed to the climbing rail.

[0017] Compared with the existing technology, the present invention has the following beneficial effects:

[0018] The present invention transfers the weight of the ladder to the crawling rail through the laying rollers and the arc grooves, increases the pressure-bearing area of ​​the overall structure, avoids local stress concentration, and completely solves the deformation problem. The close contact between the lateral limiting roller and the crawling rail forms a three-point positioning, which, combined with the torsion spring limiting buckle, significantly enhances the ability to resist lateral shaking. The supporting rod fulcrum is close to the limiting roller, and the effective end of the traction rope is located at the long power arm, which greatly reduces the force required for lifting the ladder. When moving, only the elastic force of two torsion springs needs to be overcome, and the operating resistance is reduced, so that the ladder can be quickly switched between the positioning and sliding states, reducing the load on the scaffolding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention Figure 2 ;

[0021] Figure 3 This is a schematic diagram of the position relationship between the crawling rail and the ladder of the present invention. Figure 1 ;

[0022] Figure 4 This is a schematic diagram of the position relationship between the crawling rail and the ladder of the present invention. Figure 2 ;

[0023] Figure 5 This invention Figure 4 A schematic diagram of the partially enlarged structure at center A;

[0024] Figure 6 It is a structural schematic diagram of the ladder of the present invention;

[0025] Figure 7 It is a structural schematic diagram of the supporting rod of the present invention;

[0026] Figure 8 This is a schematic structural diagram of the first gear and the second gear of the present invention;

[0027] Figure 9 This invention Figure 8 Schematic diagram of the locally enlarged structure at point B in the middle.

[0028] In the figure: 1. Scaffolding board; 2. Crossbeam; 3. Protective grid; 4. Lateral beam; 5. Longitudinal beam; 6. Triangular brace; 7. Climbing rail; 8. Ladder; 9. Horizontal limit roller; 10. Shelf roller; 11. Limit buckle; 12. Interference block 1; 13. Knob; 14. Torsion spring 1; 15. Support rod; 16. Rotating shaft; 17. Traction rope; 18. First shaft rod; 19. Sliding plate; 20. Winding wheel; 21. Insert rod; 22. Chain; 23. Rotating disk; 24. Baffle; 25. Torsion spring 2; 26. Limit frame; 27. Slot 1; 28. Slot 2; 29. ​​First gear; 30. Second shaft rod; 31. Second gear; 32. Long shaft rod; 33. Interference block 2. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0031] Reference Figures 1-9 , an aluminum alloy attached lifting scaffold, including a crossbeam 2, a longitudinal beam 5, a lateral beam 4, a triangular brace 6, a protective grid 3, a scaffolding board 1 and a ladder 8. The crossbeam 2, the longitudinal beam 5 and the lateral beam 4 are all columnar. The crossbeam 2 and the lateral beam 4 are vertically connected and are parallel to the ground. The longitudinal beam 5 is arranged perpendicular to the ground. The protective grid 3 is fixed to the outside of the scaffolding. The ladder 8 is arranged on the inside of the scaffolding through a connecting piece. The scaffolding board 1 is horizontally placed on the inside of the crossbeam 2 by screws. The lower end of each group of scaffolding boards 1 is provided with a triangular brace 6, which is fixed to the crossbeam 2 by screws.

[0032] The connecting part includes a crawling rail 7, which is fixed to the longitudinal beam 5 by screws. Four transverse limiting rollers 9 are fixed to the outer wall of the ladder 8. A same rest roller 10 is fixed between every two transverse limiting rollers 9. The ladder 8 is installed on the crawling rail 7 via the rest rollers 10. The inner wall of the crawling rail 7 is rotatably connected to a plurality of linearly distributed long shaft rods 32. Both ends of each long shaft rod 32 are provided with a lifting assembly for assisting the ladder 8 to detach from the crawling rail 7.

[0033] The lifting assembly includes a second gear 31, a winding wheel 20, a traction rope 17 and a supporting rod 15. The supporting rod 15 is composed of a semi-arc plate and a straight plate. The second gear 31 is fixed to the outer wall of the long shaft rod 32. The second gear 31 is driven by the rotating assembly to drive the long shaft rod 32 to rotate. The winding wheel 20 is fixed to the end of the long shaft rod 32. The two ends of the traction rope 17 are respectively fixed to the winding wheel 20 and the supporting rod 15. The turning point of each supporting rod 15 is rotatably connected to the crawling rail 7 through the rotating shaft 16, and the end of each supporting rod 15 is provided with an anti-slip assembly.

[0034] The anti-slip assembly includes a limiting buckle 11, a first shaft 18, a contact block 12, a contact block 2 33 and two torsion springs 14. The first shaft 18 is rotatably connected to the supporting rod 15, and the first shaft 18 is fixedly connected to the limiting buckle 11. The two torsion springs 14 are arranged around the outer wall of the first shaft 18. Both ends of the two torsion springs 14 are fixedly connected to the supporting rod 15 and the limiting buckle 11. The contact block 2 33 is fixedly connected to the end of the first shaft 18, and the contact block 12 is fixedly connected to the crawling rail 7. The contact block 12 is located at a position where the contact block 2 33 is rotated ninety degrees with the rotating shaft 16 as the axis point.

[0035] In this embodiment, the ladder 8 is placed in the arc groove inside the crawling rail 7 through the placement roller 10. The weight of the ladder 8 and the weight of the worker climbing fall on the crawling rail 7, and there is no need to worry about deformation of the components. At the same time, the lateral limiting rollers 9 on both sides of the ladder 8 are tightly attached to the two sides of the crawling rail 7 to limit the ladder 8 laterally. The limiting buckle 11 is subjected to the elastic force of the torsion spring 14 to limit the two lateral limiting rollers 9 longitudinally, making it more stable when being climbed.

[0036] Among them, the rotating assembly includes three chains 22, which are mounted on the outer walls of several chains 22 located on the same side of the crawling rail 7. The inner wall of the chain 22 is movably connected with three first gears 29. The first gear 29 is rotatably connected to the crawling rail 7 through the second shaft 30. The three first gears 29 are located at three equal parts of the longitudinal beam 5.

[0037] The outer wall of the second shaft 30 is slidably connected to a rotating disk 23 . The knob 13 is fixedly connected to the side of the rotating disk 23 away from the second shaft 30 . The outer wall of the rotating disk 23 close to the second shaft 30 is fixedly connected to the insertion rod 21 .

[0038] The outer walls of the three rotating disks 23 are rotatably connected to a same sliding plate 19 , and the sliding plate 19 is slidably connected to the crawling rail 7 .

[0039] The crawling rail 7 is provided with a plurality of slots 28 for accommodating the insertion rods 21 , and the crawling rail 7 is provided with two slots 1 27 for accommodating the two ends of the sliding plate 19 .

[0040] In this embodiment, when the height of the ladder 8 needs to be changed, the sliding plate 19 is pulled so that the sliding plate 19 drives the three rotating disks 23 and the insertion rod 21 to move away from the crawling rail 7. The insertion rod 21 will be separated from the crawling rail 7, but the sliding plate 19 will not be separated from the crawling rail 7. At the same time, the rotating disk 23 will not be separated from the second shaft rod 30. By turning one of the knobs 13, the corresponding first gear 29 is driven to rotate through the rotating disk 23 and the second shaft rod 30. The first gear 29 drives all the second gears 31 to rotate through the chain 22, so that the second gear 31 drives the winding wheels 20 on both sides to reel in and traction through the long shaft rod 32. The rope 17 causes the traction rope 17 to pull the supporting rod 15 to rotate along the rotating shaft 16. The position of the rotating shaft 16 is close to the transverse limiting roller 9, so that the supporting rod 15 is similar to a lever as a whole. The power arm of the supporting rod 15 is longer than the resistance arm, so when the supporting rod 15 lifts the transverse limiting roller 9, it becomes very labor-saving. When the supporting rod 15 rotates to ninety degrees, the resistance block 2 33 on the first shaft 18 will conflict with the resistance block 1 12, so that the limiting buckle 11 is opened, and the resistance the worker encounters is only the torsion spring 1 14 corresponding to the height of the two transverse limiting rollers 9, and the transverse limiting roller 9 is detached from the supporting rod 15.

[0041] A plurality of limiting frames 26 for limiting the position of the traction rope 17 are fixedly connected to the outer wall of the crawling rail 7 , and each limiting frame 26 is located below each limiting buckle 11 .

[0042] A number of linearly distributed buffer components are provided on the inner side of the crawling rail 7, which are used to assist the height positioning of the ladder 8 when the ladder 8 moves. The buffer component includes a baffle 24, which is rotatably connected to the inner wall of the crawling rail 7 through a set shaft. Torsion springs 25 are fixed on both sides of the baffle 24, and each torsion spring 25 is fixed to the crawling rail 7 at one end away from the baffle 24.

[0043] In this embodiment, in order to prevent the lateral limiting roller 9 on the ladder 8 from free falling due to its own gravity after separating from the supporting rod 15, the shelf roller 10 will be blocked by the baffle 24 on each floor. The worker moves the ladder 8 up and down and places the shelf roller 10 in the arc groove inside the climbing rail 7 at the target height. The supporting rod 15 is reset by the thrust of the lateral limiting roller 9, and the sliding plate 19 is pushed back into slot one 27, so that the rod 21 is inserted into slot two 28 again, and the ladder 8 can be locked.

[0044] The specific working principle and usage method of the present invention are explained in detail below: when in use, the ladder 8 is placed in the arc groove inside the crawling rail 7 through the placement roller 10. The weight of the ladder 8 and the weight of the worker climbing fall on the crawling rail 7 without worrying about deformation of the components. At the same time, the lateral limiting rollers 9 on both sides of the ladder 8 are tightly attached to the two sides of the crawling rail 7 to limit the ladder 8 laterally. The limiting buckle 11 is subjected to the elastic force of the torsion spring 14 to limit the two lateral limiting rollers 9 longitudinally, making it more stable when being climbed.

[0045] When the height of the ladder 8 needs to be changed, the sliding plate 19 is pulled so that the sliding plate 19 drives the three rotating disks 23 and the insertion rod 21 to move away from the climbing rail 7. The insertion rod 21 will be separated from the climbing rail 7, but the sliding plate 19 will not be separated from the climbing rail 7. At the same time, the rotating disk 23 will not be separated from the second shaft rod 30. One of the knobs 13 is turned to drive the corresponding first gear 29 to rotate through the rotating disk 23 and the second shaft rod 30. The first gear 29 drives all the second gears 31 to rotate through the chain 22, so that the second gear 31 drives the winding wheels 20 on both sides to reel in the traction rope 17 through the long shaft rod 32. The traction rope 17 pulls the supporting rod 15 to rotate along the rotating shaft 16. The position of the rotating shaft 16 is close to the transverse limiting roller 9, so that the supporting rod 15 is similar to a lever as a whole. The power arm of the supporting rod 15 is longer than the resistance arm, so when the supporting rod 15 lifts the transverse limiting roller 9, it becomes very labor-saving. When the supporting rod 15 rotates to ninety degrees, the resistance block 2 33 on the first shaft 18 will conflict with the resistance block 1 12, so that the limiting buckle 11 is opened. The worker is only subjected to the torsion spring 1 14 corresponding to the height of the two transverse limiting rollers 9, and the transverse limiting roller 9 is detached from the supporting rod 15.

[0046] In order to prevent the lateral limiting roller 9 on the ladder 8 from free falling due to its own gravity after separating from the supporting rod 15, the shelf roller 10 will be blocked by the baffle 24 on each floor. The worker moves the ladder 8 up and down and places the shelf roller 10 in the arc groove inside the climbing rail 7 at the target height. The supporting rod 15 is pushed back to its original position by the lateral limiting roller 9, and the sliding plate 19 is pushed back into the slot 1 27, so that the rod 21 is inserted into the slot 2 28 again, and the ladder 8 can be locked.

[0047] It is further explained that the above-mentioned fixing should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are common means well known to those skilled in the art.

[0048] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An aluminum alloy attached lifting scaffold, comprising a crossbeam (2), a longitudinal beam (5), a lateral beam (4), a triangular brace (6), a protective grid (3), a scaffolding board (1) and a ladder (8), characterized in that: The crossbeam (2), longitudinal beam (5) and lateral beam (4) are all columnar objects. The crossbeam (2) and the lateral beam (4) are vertically connected and are both arranged parallel to the ground. The longitudinal beam (5) is arranged vertically to the ground. The protective grid (3) is fixed on the outside of the scaffolding. The ladder (8) is arranged on the inside of the scaffolding through a connecting piece. The scaffolding board (1) is horizontally placed on the inside of the crossbeam (2) through screws. The lower end of each group of scaffolding boards (1) is provided with a triangular diagonal brace (6), and the triangular diagonal brace (6) is fixed to the crossbeam (2) through screws. The connecting member includes a crawling rail (7), which is fixed to the longitudinal beam (5) by screws. Four transverse limiting rollers (9) are fixed to the outer wall of the ladder (8), and a same resting roller (10) is fixed between every two transverse limiting rollers (9). The ladder (8) is installed on the crawling rail (7) through the resting roller (10). The inner wall of the crawling rail (7) is rotatably connected to a plurality of linearly distributed long shaft rods (32). Both ends of each long shaft rod (32) are provided with a lifting assembly for assisting the ladder (8) to separate from the crawling rail (7). The lifting assembly includes a second gear (31), a winding wheel (20), a traction rope (17) and a supporting rod (15), the supporting rod (15) is composed of a semi-arc plate and a straight plate, the second gear (31) is fixedly connected to the outer wall of the long shaft rod (32), the second gear (31) is driven by the rotating assembly to drive the long shaft rod (32) to rotate, the winding wheel (20) is fixedly connected to the end of the long shaft rod (32), the two ends of the traction rope (17) are respectively fixedly connected to the winding wheel (20) and the supporting rod (15), the turning point of each supporting rod (15) is rotatably connected to the crawling rail (7) through the rotating shaft (16), and the end of each supporting rod (15) is provided with an anti-slip assembly.

2. The aluminum alloy attached lifting scaffold according to claim 1, characterized in that: The anti-slip assembly includes a limit buckle (11), a first shaft (18), a resistance block (12), a resistance block (33) and two torsion springs (14). The first shaft (18) is rotatably connected to the support rod (15). The first shaft (18) is fixedly connected to the limit buckle (11). The two torsion springs (14) are arranged around the outer wall of the first shaft (18). Both ends of the two torsion springs (14) are fixedly connected to the support rod (15) and the limit buckle (11). The resistance block (33) is fixedly connected to the end of the first shaft (18). The resistance block (12) is fixedly connected to the crawling rail (7). The resistance block (12) is located at a position where the resistance block (33) is rotated ninety degrees with the rotation axis (16) as the axis point.

3. The aluminum alloy attached lifting scaffold according to claim 1, characterized in that: The rotating assembly includes three chains (22), the chains (22) are sleeved on the outer walls of a plurality of chains (22) located on the same side of the crawling rail (7), the inner walls of the chains (22) are movably connected with three first gears (29), the first gears (29) are rotatably connected to the crawling rail (7) through the second shaft (30), and the three first gears (29) are located at three equal parts of the longitudinal beam (5).

4. The aluminum alloy attached lifting scaffold according to claim 3, characterized in that: The outer wall of the second shaft (30) is slidably connected to a rotating disk (23), a side of the rotating disk (23) away from the second shaft (30) is fixedly connected to a knob (13), and the outer wall of the rotating disk (23) close to the second shaft (30) is fixedly connected to an insertion rod (21).

5. The aluminum alloy attached lifting scaffold according to claim 4, characterized in that: The outer walls of the three rotating disks (23) are rotatably connected to a same sliding plate (19), and the sliding plate (19) is slidably connected to the crawling rail (7).

6. The aluminum alloy attached lifting scaffold according to claim 5, characterized in that: The crawling rail (7) is provided with a plurality of slots (28) for accommodating the insertion rods (21), and the crawling rail (7) is provided with two slots (27) for accommodating the two ends of the sliding plate (19).

7. The aluminum alloy attached lifting scaffold according to claim 6, characterized in that: A plurality of limiting frames (26) for limiting the position of the traction rope (17) are fixedly connected to the outer wall of the crawling rail (7), and each limiting frame (26) is located below each limiting buckle (11).

8. The aluminum alloy attached lifting scaffold according to claim 1, characterized in that: A plurality of linearly distributed buffer components are provided on the inner side of the climbing rail (7) for assisting the height positioning of the ladder (8) when the ladder (8) moves. The buffer component includes a baffle (24), which is rotatably connected to the inner wall of the climbing rail (7) through a provided shaft. Two torsion springs (25) are fixed on both sides of the baffle (24), and one end of each torsion spring (25) away from the baffle (24) is fixed to the climbing rail (7).

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