High-altitude operation device

Abstract

The utility model relates to a high-altitude operation device. The high-altitude operation device comprises an installation frame and a control assembly. The mounting frame comprises a rectangular frame, an L-shaped rod and a horizontal rod, the top end of the L-shaped rod is connected with the bottom end of the rectangular frame, the top end of the control assembly is used for being connected with an external safety belt, the bottom end of the control assembly penetrates through the end, away from the L-shaped rod, of the rectangular frame to be connected with the end of the horizontal rod, and the control assembly and the horizontal rod can rotate relative to the rectangular frame. The control assembly rotates to drive the horizontal rod to rotate, so that the mounting frame is opened and closed; two first rolling wheels are arranged on the rectangular frame and can rotate relative to the rectangular frame, a second rolling wheel is arranged at the end, away from the control assembly, of the horizontal rod, and a third rolling wheel is arranged on the horizontal part of the L-shaped rod; through the arrangement, the safety of operators can be guaranteed, the operation safety protection setting time is shortened, movement is convenient, and the construction efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building engineering, especially a high-altitude operation device. BACKGROUND

[0002] At present, in the steel structure construction process, the arrangement of lifeline is mostly on the main beam, and the more number of secondary beams cannot be fully distributed with safety lifeline due to the influence of installation sequence, process arrangement and other factors, and the high-altitude operation vehicle cannot approach due to the influence of the structure frame, therefore, when carrying out the floor laying and other construction tasks of this part of secondary beams, the operating personnel often directly fix the safety belt on the secondary beam, but this way not only violates the principle of high hanging and low use of safety belt, but also is difficult to move, is not convenient for construction, and reduces the construction efficiency. SUMMARY

[0003] In view of the deficiencies in the prior art, the utility model aims at providing a high-altitude operation device, which has the advantages of ensuring the safety of operating personnel, reducing the setting time of operation safety protection, being convenient to move and improving the construction efficiency.

[0004] The utility model discloses the above-mentioned utility model aims at realizing through the following technical scheme: a high-altitude operation device, including installation frame and control assembly, the installation frame includes rectangular frame, L type rod and horizontal rod, the top of L type rod is connected with the bottom of rectangular frame, the top of control assembly is used for connecting with external safety belt, the bottom of control assembly passes through the one end of rectangular frame away from L type rod and is connected with the end of horizontal rod, the horizontal rod is opposite to the horizontal part of L type rod, control assembly and horizontal rod can rotate relative to rectangular frame, control assembly drives horizontal rod to rotate to realize the opening and closing of installation frame, rectangular frame is provided with two first gyro wheel, two first gyro wheel is along the X direction interval setting, two first gyro wheel can rotate relative to rectangular frame, the one end of horizontal rod away from control assembly is provided with second gyro wheel, second gyro wheel can rotate relative to horizontal rod, the horizontal part of L type rod is provided with third gyro wheel, third gyro wheel can rotate relative to L type rod, second gyro wheel and third gyro wheel are along the Y direction interval setting, the installation frame is used for clamping in the shaped steel girder, first gyro wheel, second gyro wheel and third gyro wheel are used for rolling on the shaped steel girder.

[0005] Preferably, the high-altitude operation device provided by the utility model, the top surface of the one end of the rectangular frame away from the L-shaped rod is provided with a fixing hole and a rotating hole, the fixing hole is in communication with the rotating hole, and the fixing hole and the rotating hole both penetrate through the rectangular frame.

[0006] Preferably, the high-altitude operation device, the control assembly includes a hollow vertical rod, a sliding block and an unlocking unit, a sliding groove is formed on the outer wall close to the bottom end of the hollow vertical rod, the sliding groove extends along the Z direction, the sliding groove is communicated with the cavity of the hollow vertical rod, one end of the sliding block is inserted into the sliding groove and connected with the bottom end of the unlocking unit, the sliding block can slide along the sliding groove, the top end of the unlocking unit is inserted into the outer wall close to the top end of the hollow vertical rod, the unlocking unit can slide relative to the hollow vertical rod, the bottom end of the hollow vertical rod penetrates through the rectangular frame away from one end of the L-shaped rod and is connected with the end of the horizontal rod, the sliding groove is located on the upper part of the rectangular frame, and the hollow vertical rod can rotate relative to the rectangular frame; when the mounting frame is in the closed state, the bottom end of the hollow vertical rod penetrates into the fixing hole, the sliding block is inserted into the rotating hole, the outer wall of the sliding block abuts against the inner wall of the rotating hole, and the hollow vertical rod cannot rotate relative to the rectangular frame; when the mounting frame is in the open state, the unlocking unit pulls the sliding block to slide along the sliding groove, the sliding block slides out of the rotating hole, the hollow vertical rod moves from the fixing hole to the rotating hole, the hollow vertical rod is rotated, the hollow vertical rod drives the horizontal rod to rotate, and the mounting frame is opened.

[0007] Preferably, the high-altitude operation device, the outer wall close to the bottom end of the hollow vertical rod is provided with a first limiting U-shaped plate and a second limiting U-shaped plate, the first limiting U-shaped plate and the second limiting U-shaped plate are arranged at intervals along the Z direction, the first limiting U-shaped plate is located on the upper part of the rectangular frame, and the second limiting U-shaped plate is located on the lower part of the rectangular frame.

[0008] Preferably, the high-altitude operation device, the unlocking unit includes a sliding rod and a steel wire rope, a sliding port is formed on the outer wall close to the top end of the hollow vertical rod, the sliding port is communicated with the cavity of the hollow vertical rod, the steel wire rope is located in the hollow vertical rod, one end of the sliding rod is inserted into the cavity of the hollow vertical rod through the sliding port and connected with one end of the steel wire rope, the sliding rod can slide along the sliding port, and one end of the steel wire rope away from the sliding rod is connected with the sliding block.

[0009] Preferably, the high-altitude operation device, the sliding port includes a first vertical port, a second vertical port, a horizontal port and an inclined port, the first vertical port, the inclined port, the horizontal port and the second vertical port are sequentially connected from top to bottom.

[0010] Preferably, the high-altitude operation device, the top end of the hollow vertical rod is provided with a circular ring for connecting with a safety belt.

[0011] Preferably, the high-altitude operation device provided by the utility model, the fixed hole is a square hole.

[0012] Preferably, the high-altitude operation device provided by the utility model, the rotating hole is a round hole.

[0013] Preferably, the high-altitude operation device provided by the utility model, the diameter of the second roller and the diameter of the third roller are both smaller than the diameter of the first roller.

[0014] To sum up, the high-altitude operation device provided by the utility model, including installation frame and control assembly, the installation frame includes rectangular frame, L-shaped rod and horizontal rod, the top end of the L-shaped rod is connected with the bottom end of the rectangular frame, the top end of the control assembly is used for connecting with the external safety belt, the bottom end of the control assembly is connected with the end of the horizontal rod through the one end of the rectangular frame away from the L-shaped rod, the horizontal rod is oppositely arranged with the horizontal part of the L-shaped rod, the control assembly and the horizontal rod can rotate relative to the rectangular frame, the control assembly drives the horizontal rod to rotate to realize the opening and closing of the installation frame, two first rollers are arranged on the rectangular frame, the two first rollers are arranged along the X direction, the two first rollers can rotate relative to the rectangular frame, the one end of the horizontal rod away from the control assembly is provided with a second roller, the second roller can rotate relative to the horizontal rod, a third roller is arranged on the horizontal part of the L-shaped rod, the third roller can rotate relative to the L-shaped rod, the second roller and the third roller are arranged along the Y direction, the installation frame is used for clamping on the steel beam, the first roller, the second roller and the third roller are used for rolling on the steel beam, so the safety of the operator can be ensured, the operation safety protection setting time is reduced, the installation frame is convenient to move and the construction efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the overall structure schematic view of the high-altitude operation device provided by the utility model embodiment.

[0016] Figure 2 It is the top view of the high-altitude operation device provided by the utility model embodiment.

[0017] Figure 3 It is the connecting structure schematic view between the hollow vertical rod and the installation frame in the high-altitude operation device provided by the utility model embodiment.

[0018] Figure 4 It is the partial structure schematic view of the rectangular frame in the high-altitude operation device provided by the utility model embodiment.

[0019] Figure 5 It is the sectional view of the high-altitude operation device provided by the utility model embodiment. Figure 1-1

[0020] ​Figure 6 is a sectional view of the aerial work device provided by the embodiment of the utility model Figure 2-2 .

[0021] Figure 7 is the structure schematic view of the mounting rack in the open state in the aerial work device provided by the embodiment of the utility model.

[0022] Figure 8 is the installation schematic view of the aerial work device provided by the embodiment of the utility model.

[0023] In the figure, 1, aerial work device;10, mounting rack;11, rectangular frame;111, first roller;112, horizontal plate;1121, fixed hole;1122, rotating hole;113, first connecting rod;114, second connecting rod;115, fixed rod;12, L-shaped rod;121, horizontal part;122, third roller;13, horizontal rod;131, second roller;20, control assembly;21, hollow vertical rod;211, sliding groove;212, first limiting U-shaped plate;213, second limiting U-shaped plate;214, sliding port;2141, first vertical port;2142, second vertical port;2143, horizontal port;2144, inclined port;215, circular ring;22, sliding block;221, stop plate;23, unlocking unit;231, sliding rod;2311, limiting plate;232, steel wire rope;2, safety belt;3, shaped steel beam. DETAILED DESCRIPTION

[0024] The utility model will be further explained in detail in connection with the drawings.

[0025] Refer to Figures 1 to 8 , the utility model discloses an aerial work device 1, including mounting rack 10 and control assembly 20, mounting rack 10 includes rectangular frame 11, L-shaped rod 12 and horizontal rod 13, and the top of L-shaped rod 12 is connected with the bottom of rectangular frame 11, and the top of control assembly 20 is used to be connected with the external safety belt 2, and the bottom of control assembly 20 passes through the one end of rectangular frame 11 away from L-shaped rod 12 and is connected with the end of horizontal rod 13, and horizontal rod 13 is oppositely arranged with the horizontal part 121 of L-shaped rod 12, and control assembly 20 and horizontal rod 13 can rotate relative to rectangular frame 11, and control assembly 20 rotates and drives horizontal rod 13 to rotate, to realize the opening and closing of mounting rack 10.

[0026] Specifically, rectangular frame 11 includes horizontal plate 112, fixed rod 115, first connecting rod 113 and second connecting rod 114, which are oppositely arranged with horizontal plate 112, first connecting rod 113 and second connecting rod 114 are oppositely arranged, and horizontal plate 112, first connecting rod 113, fixed rod 115 and second connecting rod 114 are sequentially connected in a rectangular shape.

[0027] The bottom end of the control assembly 20 is connected to the end of the horizontal rod 13 through the horizontal plate 112, and the top end of the L-shaped rod 12 is connected to the bottom end of the fixed rod 115.

[0028] In this embodiment, two first rollers 111 are arranged on the rectangular frame 11, and the two first rollers 111 are arranged at intervals along the X direction and can rotate relative to the rectangular frame 11. The end of the horizontal rod 13 away from the control assembly 20 is provided with a second roller 131, and the second roller 131 can rotate relative to the horizontal rod 13. The horizontal part 121 of the L-shaped rod 12 is provided with a third roller 122, and the third roller 122 can rotate relative to the L-shaped rod 12. The second roller 131 and the third roller 122 are arranged at intervals along the Y direction. The mounting bracket 10 is used for clamping the steel beam 3. The first roller 111, the second roller 131, and the third roller 122 are used for rolling on the steel beam 3. In this way, the safety of the operator can be ensured, the time for setting up safety protection is reduced, the movement is facilitated, and the construction efficiency is improved.

[0029] It should be noted that the diameters of the second roller 131 and the third roller 122 are substantially the same.

[0030] The diameters of the second roller 131 and the third roller 122 are smaller than the diameter of the first roller 111.

[0031] Specifically, the two first rollers 111 are arranged on the first connecting rod 113 and the second connecting rod 114, respectively, and the two first rollers 111 are arranged in parallel. The center lines of the second roller 131, the third roller 122, and the first roller 111 are arranged in parallel with the Y direction. In some realizable ways, the center lines of the second roller 131 and the third roller 122 are arranged in a straight line.

[0032] In use, the two first rollers 111 are located on the top surface of the steel beam 3, and the second roller 131 and the third roller 122 are located in the steel beam 3. The first roller 111, the second roller 131, and the third roller 122 are used for rolling on the steel beam 3 to drive the aerial work device 1 to move on the steel beam 3. Thus, the construction efficiency is improved.

[0033] Further, in this embodiment, the top surface of the end of the rectangular frame 11 away from the L-shaped rod 12 is provided with a fixed hole 1121 and a rotating hole 1122. The fixed hole 1121 and the rotating hole 1122 are in communication, and both the fixed hole 1121 and the rotating hole 1122 penetrate the rectangular frame 11.

[0034] Specifically, the horizontal plate 112 has a fixing hole 1121 and a rotating hole 1122, both of which pass through the horizontal plate 112 and are connected.

[0035] In this embodiment, the rotating hole 1122 is a round hole; the fixing hole 1121 is a square hole.

[0036] Furthermore, in this embodiment, the control component 20 includes a hollow upright 21, a slider 22, and an unlocking unit 23. A groove 211 is provided on the outer wall near the bottom end of the hollow upright 21. The groove 211 extends along the Z direction and communicates with the cavity of the hollow upright 21. One end of the slider 22 is inserted into the groove 211 and connected to the bottom end of the unlocking unit 23. The slider 22 can slide along the groove 211. The top end of the unlocking unit 23 is inserted on the outer wall near the top end of the hollow upright 21. The unlocking unit 23 can slide relative to the hollow upright 21. The bottom end of the hollow upright 21 passes through the rectangular frame 11 away from the end of the L-shaped rod 12 and is connected to the end of the horizontal rod 13. The groove 211 is located on the upper part of the rectangular frame 11, and the hollow upright 21 can rotate relative to the rectangular frame 11.

[0037] When the mounting bracket 10 is in the closed state, the bottom end of the hollow upright 21 passes through the fixing hole 1121, and the slider 22 is inserted into the rotating hole 1122. The outer wall of the slider 22 abuts against the inner wall of the rotating hole 1122, and the hollow upright 21 cannot rotate relative to the rectangular frame 11. When the mounting bracket 10 is in the open state, the unlocking unit 23 pulls the slider 22 to slide along the slide groove 211. The slider 22 slides out of the rotating hole 1122, and the hollow upright 21 moves from the fixing hole 1121 into the rotating hole 1122. The hollow upright 21 is rotated, and the hollow upright 21 drives the horizontal bar 13 to rotate, so that the mounting bracket 10 is opened.

[0038] In this embodiment, the hollow upright 21 is made of square steel and is adapted to the fixing hole 1121.

[0039] Specifically, with Figure 1 Taking the shown orientation as an example, a groove 211 is provided on the front side wall of the hollow upright 21. The unlocking unit 23 is located in the cavity of the hollow upright 21. One end of the slider 22 passes through the groove 211 and is connected to the unlocking unit 23. A stop plate 221 is provided on the end of the slider 22 inserted into the hollow upright 21. The stop plate 221 is used to prevent the slider 22 from sliding out of the groove 211.

[0040] Further, in the embodiment, the outer wall close to the bottom end of the hollow vertical rod 21 is provided with a first limiting U-shaped plate 212 and a second limiting U-shaped plate 213, the first limiting U-shaped plate 212 and the second limiting U-shaped plate 213 are arranged along the Z direction, the first limiting U-shaped plate 212 is located at the upper part of the rectangular frame 11, and the second limiting U-shaped plate 213 is located at the lower part of the rectangular frame 11; by arranging the first limiting U-shaped plate 212 and the second limiting U-shaped plate 213, the hollow vertical rod 21 and the horizontal plate 112 are prevented from being separated, thereby improving the safety.

[0041] Specifically, the first limiting U-shaped plate 212 and the second limiting U-shaped plate 213 are arranged opposite to each other, the first limiting U-shaped plate 212 is located at the upper part of the horizontal plate 112, and the second limiting U-shaped plate 213 is located at the lower part of the horizontal plate 112.

[0042] Further, in the embodiment, the unlocking unit 23 includes a sliding rod 231 and a steel wire rope 232, a sliding port 214 is formed in the outer wall close to the top end of the hollow vertical rod 21, the sliding port 214 is in communication with the cavity of the hollow vertical rod 21, the steel wire rope 232 is located in the hollow vertical rod 21, one end of the sliding rod 231 is inserted into the cavity of the hollow vertical rod 21 through the sliding port 214 and connected with one end of the steel wire rope 232, the sliding rod 231 can slide along the sliding port 214, and the end of the steel wire rope 232 away from the sliding rod 231 is connected with the sliding block 22. The steel wire rope 232 can move relative to the hollow vertical rod 21.

[0043] Specifically, the outer peripheral wall of the end of the sliding rod 231 inserted into the cavity of the hollow vertical rod 21 is provided with a limiting plate 2311 to prevent the sliding rod 231 from sliding out of the sliding port 214.

[0044] The sliding port 214 includes a first vertical port 2141, a second vertical port 2142, a horizontal port 2143, and an inclined port 2144, which are connected in sequence from top to bottom; by arranging the inclined port 2144, accidents caused by mistaken lifting can be prevented, thereby further improving the safety.

[0045] Specifically, the first vertical port 2141 and the second vertical port 2142 extend along the Z direction, and the horizontal port 2143 extends along the Y direction.

[0046] Further, in the embodiment, the top end of the hollow vertical rod 21 is provided with a circular ring 215 for connecting with the safety belt 2.

[0047] The use process of the aerial work device 1 provided by the embodiment is as follows: the slide rod 231 is lifted upward, the slide rod 231 pulls the sliding block 22 to slide upward along the slide groove 211 through the steel wire rope 232, the sliding block 22 slides out of the rotating hole 1122, the hollow vertical rod 21 is moved from the fixed hole 1121 to the position of the rotating hole 1122, the hollow vertical rod 21 rotates in the rotating hole 1122, the hollow vertical rod 21 drives the horizontal rod 13 and the second roller 131 to rotate, at this time, the mounting rack 10 is opened, the mounting rack 10 can be clamped above the steel beam 3, and then the hollow vertical rod and the sliding block 22 are reset.

[0048] The aerial work device 1 provided by the application comprises a mounting rack 10 and a control assembly 20; the mounting rack 10 comprises a rectangular frame 11, an L-shaped rod 12 and a horizontal rod 13, the top end of the L-shaped rod 12 is connected with the bottom end of the rectangular frame 11, the top end of the control assembly 20 is used for being connected with an external safety belt 2, the bottom end of the control assembly 20 is connected with the end of the horizontal rod 13 through the end of the rectangular frame 11 away from the L-shaped rod 12, the horizontal rod 13 is arranged opposite to the horizontal part 121 of the L-shaped rod 12, the control assembly 20 and the horizontal rod 13 can rotate relative to the rectangular frame 11, the control assembly 20 drives the horizontal rod 13 to rotate, so as to realize the opening and closing of the mounting rack 10; two first rollers 111 are arranged on the rectangular frame 11, the two first rollers 111 are arranged in the X direction and are spaced apart, the two first rollers 111 can rotate relative to the rectangular frame 11, one end of the horizontal rod 13 away from the control assembly 20 is provided with a second roller 131, the second roller 131 can rotate relative to the horizontal rod 13, the horizontal part 121 of the L-shaped rod 12 is provided with a third roller 122, the third roller 122 can rotate relative to the L-shaped rod 12, the second roller 131 and the third roller 122 are arranged in the Y direction and are spaced apart; the mounting rack 10 is used for being clamped on a steel beam 3, the first roller 111, the second roller 131 and the third roller 122 are used for rolling on the steel beam 3; in this way, the safety of workers can be ensured, the time for setting up a work safety protection device is reduced, the mounting rack 10 is convenient to move, and the construction efficiency is improved.

[0049] The aerial work device 1 provided by the application has the following advantages: the device has a simple structure, is easy to manufacture and convenient to operate.

[0050] It should be noted that, in this document, the terms "first", "second", and the like, merely denote differentiating entities or operations from each other, without necessarily requiring or implying any actual relationship or order between such entities or operations. Also, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises a" does not, without more limitations, preclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0051] Finally, it should be noted that the above-mentioned embodiments are merely examples for clearly illustrating the present application, and are not intended to limit the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, it is not necessary or possible to exhaust all the embodiments. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. An aerial work platform, characterized by: The mounting frame comprises a rectangular frame, an L-shaped rod and a horizontal rod, the top end of the L-shaped rod is connected with the bottom end of the rectangular frame, the top end of the control assembly is used for connecting with an external safety belt, the bottom end of the control assembly is connected with the end of the horizontal rod through the end of the rectangular frame away from the L-shaped rod, the horizontal rod is arranged opposite to the horizontal part of the L-shaped rod, the control assembly and the horizontal rod can rotate relative to the rectangular frame, the rotation of the control assembly drives the rotation of the horizontal rod to realize the opening and closing of the mounting frame. The rectangular frame is provided with two first rollers, the two first rollers are arranged in the X direction, the two first rollers can rotate relative to the rectangular frame, the end of the horizontal rod away from the control assembly is provided with a second roller, the second roller can rotate relative to the horizontal rod, the horizontal part of the L-shaped rod is provided with a third roller, the third roller can rotate relative to the L-shaped rod, the second roller and the third roller are arranged in the Y direction. The mounting frame is used for clamping on a steel beam, the first roller, the second roller and the third roller are used for rolling on the steel beam. The top surface of the end of the rectangular frame away from the L-shaped rod is provided with a fixed hole and a rotating hole, the fixed hole and the rotating hole are communicated, and the fixed hole and the rotating hole penetrate through the rectangular frame.

2. Aerial work platform according to claim 1, characterized in that: The control assembly comprises a hollow vertical rod, a sliding block and an unlocking unit, a sliding groove is formed in the outer wall close to the bottom end of the hollow vertical rod, the sliding groove extends in the Z direction, the sliding groove is communicated with the cavity of the hollow vertical rod, one end of the sliding block is inserted into the sliding groove and connected with the bottom end of the unlocking unit, the sliding block can slide along the sliding groove, the top end of the unlocking unit is inserted into the outer wall close to the top end of the hollow vertical rod, the unlocking unit can slide relative to the hollow vertical rod, the bottom end of the hollow vertical rod is connected with the end of the horizontal rod through the end of the rectangular frame away from the L-shaped rod, the sliding groove is located in the upper part of the rectangular frame, and the hollow vertical rod can rotate relative to the rectangular frame.

3. Aerial work platform according to claim 2, characterized in that: When the mounting frame is in the closed state, the bottom end of the hollow vertical rod is inserted into the fixed hole, the sliding block is inserted into the rotating hole, the outer wall of the sliding block abuts against the inner wall of the rotating hole, and the hollow vertical rod cannot rotate relative to the rectangular frame. When the mounting frame is in the open state, the unlocking unit pulls the sliding block to slide along the sliding groove, the sliding block slides out of the rotating hole, the hollow vertical rod moves from the fixed hole to the rotating hole, the hollow vertical rod is rotated, the hollow vertical rod drives the horizontal rod to rotate to open the mounting frame. ​ 4. Aerial work platform according to claim 3, characterized in that: A first limiting U-shaped plate and a second limiting U-shaped plate are provided on the outer wall near the bottom end of the hollow upright. The first limiting U-shaped plate and the second limiting U-shaped plate are spaced apart along the Z direction. The first limiting U-shaped plate is located at the upper part of the rectangular frame, and the second limiting U-shaped plate is located at the lower part of the rectangular frame.

5. The aerial work platform of claim 3, wherein: The unlocking unit includes a sliding rod and a steel wire rope. A sliding opening is provided on the outer wall near the top of the hollow upright, and the sliding opening communicates with the cavity of the hollow upright. The steel wire rope is located inside the hollow upright. One end of the sliding rod is inserted into the cavity of the hollow upright through the sliding opening and is connected to one end of the steel wire rope. The sliding rod can slide along the sliding opening. The end of the steel wire rope away from the sliding rod is connected to the slider, and the steel wire rope can move relative to the hollow upright.

6. Aerial work platform according to claim 5, characterized in that: The sliding opening includes a first vertical opening, a second vertical opening, a horizontal opening, and an inclined opening, which are connected sequentially from top to bottom.

7. The aerial work platform of claim 3, wherein: The top of the hollow upright is provided with a ring for connecting to the safety belt.

8. The aerial device of claim 2, wherein: The fixing hole is square.

9. The aerial device of claim 2, wherein: The rotating hole is a circular hole.

10. The aerial device of claim 1, wherein: The diameters of the second roller and the third roller are both smaller than the diameter of the first roller.

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