High-altitude operation device

Abstract

The invention relates to a high-altitude operation device. The high-altitude operation device comprises a mounting 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 invention relates to the technical field of construction engineering, and in particular to a high-altitude working device. Background Art

[0002] At present, in the process of steel structure construction, lifelines are mostly arranged on the main beams, while the secondary beams with a larger number will be affected by the installation sequence, process arrangement, etc., and the safety lifelines cannot be fully arranged. Some secondary beams are affected by the structural frame and aerial work vehicles cannot approach. Therefore, when carrying out construction tasks such as floor laying on these secondary beams, operators often directly fix the safety belts on the secondary beams. However, this method not only violates the principle of hanging the safety belts high and using them low, but also makes it difficult to move and inconvenient for construction, resulting in reduced construction efficiency. Summary of the invention

[0003] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an aerial work device, which has the advantages of being able to ensure the safety of workers, reducing the time for setting up work safety protection, facilitating movement, and improving construction efficiency.

[0004] The above-mentioned invention object of the present invention is achieved through the following technical scheme: an aerial work device, including a mounting frame and a control assembly; the mounting frame includes a rectangular frame, an L-shaped rod and a horizontal rod, the top end of the L-shaped rod is connected to the bottom end of the rectangular frame, the top end of the control assembly is used to connect with an external safety belt, the bottom end of the control assembly passes through the end of the rectangular frame away from the L-shaped rod and is connected to the end of the horizontal rod, the horizontal rod is arranged opposite to the horizontal part of the L-shaped rod, the control assembly and the horizontal rod can both rotate relative to the rectangular frame, and the rotation of the control assembly drives the horizontal rod to rotate to achieve the safety belt. Opening and closing of the mounting frame; two first rollers are arranged on the rectangular frame, the two first rollers are arranged at intervals along the X direction, and the two first rollers can rotate relative to the rectangular frame; a second roller is arranged at the end of the horizontal rod away from the control component, and the second roller can rotate relative to the horizontal rod; a third roller is arranged on the horizontal part of the L-shaped rod, and the third roller can rotate relative to the L-shaped rod, and the second roller and the third roller are arranged at intervals along the Y direction; the mounting frame is used to be clamped on the steel beam, and the first roller, the second roller and the third roller are all used to roll on the steel beam.

[0005] Preferably, in the aerial work device provided by the present invention, a fixing hole and a rotating hole are provided on the top surface of one end of the rectangular frame away from the L-shaped rod, the fixing hole is connected to the rotating hole, and both the fixing hole and the rotating hole pass through the rectangular frame.

[0006] Preferably, in the aerial work device provided by the present invention, the control component includes a hollow vertical rod, a sliding block and an unlocking unit, a sliding groove is provided on the outer wall near 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 in the sliding groove and is connected to 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 on the outer wall near 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 passes through one end of the rectangular frame away from the L-shaped rod, and is connected to the end of the horizontal rod, The slide groove is located at 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 a closed state, the bottom end of the hollow vertical rod is inserted into the fixed hole, the slider is inserted into the rotating hole, the outer wall of the slider 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 an open state, the unlocking unit pulls the slider to slide along the slide groove, the slider 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, and the hollow vertical rod drives the horizontal rod to rotate, so that the mounting frame is opened.

[0007] Preferably, in the aerial work device provided by the present invention, a first limiting U-shaped plate and a second limiting U-shaped plate are arranged on the outer wall near the bottom end of the hollow vertical pole, 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 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.

[0008] Preferably, in the aerial work device provided by the present invention, the unlocking unit includes a sliding rod and a steel wire rope, a sliding opening is provided on the outer wall near the top end of the hollow vertical pole, the sliding opening is communicated with the cavity of the hollow vertical pole, the steel wire rope is located in the hollow vertical pole, one end of the sliding rod is inserted into the cavity of the hollow vertical pole through the sliding opening and is connected to one end of the steel wire rope, the sliding rod can slide along the sliding opening, one 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 vertical pole.

[0009] Preferably, in the aerial work device provided by the present invention, the sliding opening comprises a first vertical opening, a second vertical opening, a horizontal opening and an inclined opening, and the first vertical opening, the inclined opening, the horizontal opening and the second vertical opening are connected in sequence from top to bottom.

[0010] Preferably, in the aerial work device provided by the present invention, a ring for connecting with a safety belt is provided at the top end of the hollow vertical pole.

[0011] Preferably, in the aerial work device provided by the present invention, the fixing hole is a square hole.

[0012] Preferably, in the aerial working device provided by the present invention, the rotating hole is a circular hole.

[0013] Preferably, in the aerial working device provided by the present invention, the diameter of the second roller and the diameter of the third roller are both smaller than the diameter of the first roller.

[0014] In summary, the beneficial technical effects of the present invention are as follows: the aerial work device provided by the present application comprises a mounting 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 to the bottom end of the rectangular frame; the top end of the control assembly is used to connect to an external safety belt; the bottom end of the control assembly passes through the end of the rectangular frame away from the L-shaped rod and is connected to the end of the horizontal rod; the horizontal rod and the horizontal part of the L-shaped rod are arranged relative to each other; the control assembly and the horizontal rod can both 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; two first rollers are arranged on the rectangular frame Wheels, two first rollers are arranged at intervals along the X direction, and the two first rollers can rotate relative to the rectangular frame; a second roller is arranged at one end of the horizontal rod away from the control component, and the second roller can rotate relative to the horizontal rod; a third roller is arranged on the horizontal part of the L-shaped rod, and the third roller can rotate relative to the L-shaped rod, and the second roller and the third roller are arranged at intervals along the Y direction; the mounting frame is used to be clamped on the steel beam, and the first roller, the second roller and the third roller are all used to roll on the steel beam; such a setting can ensure the safety of the operating personnel, reduce the time for setting up the operating safety protection, facilitate movement, and improve the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the aerial work device provided by an embodiment of the present invention.

[0016] Figure 2 It is a top view of the aerial work device provided by an embodiment of the present invention.

[0017] Figure 3 It is a schematic diagram of the connection structure between the hollow upright pole and the mounting frame in the aerial work device provided by an embodiment of the present invention.

[0018] Figure 4 It is a partial structural schematic diagram of a rectangular frame in an aerial work device provided in an embodiment of the present invention.

[0019] Figure 5 is a cross-sectional view of an aerial work device provided by an embodiment of the present invention Figure 1-1 .

[0020] Figure 6 is a cross-sectional view of an aerial work device provided by an embodiment of the present invention Figure 2-2 .

[0021] Figure 7 It is a structural schematic diagram of a mounting frame in an open state in an aerial work device provided by an embodiment of the present invention.

[0022] Figure 8 It is a schematic diagram of the installation of the aerial work device provided by an embodiment of the present invention.

[0023] In the figure, 1, aerial work device; 10, mounting frame; 11, rectangular frame; 111, first roller; 112, horizontal plate; 1121, fixing hole; 1122, rotating hole; 113, first connecting rod; 114, second connecting rod; 115, fixing 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, slide groove; 212, first limit U-shaped plate; 213, second limit U-shaped plate; 214, sliding mouth; 2141, first vertical mouth; 2142, second vertical mouth; 2143, horizontal mouth; 2144, inclined mouth; 215, ring; 22, slider; 221, stop plate; 23, unlocking unit; 231, slide rod; 2311, limit plate; 232, wire rope; 2, safety belt; 3, steel beam. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0025] Reference Figures 1 to 8 , is an aerial work device 1 disclosed in the present invention, comprising a mounting frame 10 and a control assembly 20; the mounting frame 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 to the bottom end of the rectangular frame 11, the top end of the control assembly 20 is used to connect with an external safety belt 2, the bottom end of the control assembly 20 passes through the end of the rectangular frame 11 away from the L-shaped rod 12 and is connected to the end of the horizontal rod 13, the horizontal rod 13 is arranged opposite to the horizontal portion 121 of the L-shaped rod 12, the control assembly 20 and the horizontal rod 13 can both rotate relative to the rectangular frame 11, and the rotation of the control assembly 20 drives the horizontal rod 13 to rotate, so as to realize the opening and closing of the mounting frame 10.

[0026] Specifically, the rectangular frame 11 includes a horizontal plate 112, a fixed rod 115 arranged opposite to the horizontal plate 112, a first connecting rod 113 and a second connecting rod 114, the first connecting rod 113 and the second connecting rod 114 are arranged opposite to each other, and the horizontal plate 112, the first connecting rod 113, the fixed rod 115 and the second connecting rod 114 are connected end to end in sequence to form a rectangle.

[0027] The bottom end of the control assembly 20 passes through the horizontal plate 112 and is connected to the end of the horizontal rod 13 , 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 provided on the rectangular frame 11, and the two first rollers 111 are arranged at intervals along the X direction. Both of the two first rollers 111 can rotate relative to the rectangular frame 11, and a second roller 131 is provided at one end of the horizontal rod 13 away from the control component 20, and the second roller 131 can rotate relative to the horizontal rod 13, and a third roller 122 is provided on the horizontal portion 121 of the L-shaped rod 12, and the third roller 122 can rotate relative to the L-shaped rod 12, and the second roller 131 and the third roller 122 are arranged at intervals along the Y direction; the mounting frame 10 is used to be clamped on the steel beam 3, and the first roller 111, the second roller 131 and the third roller 122 are all used to roll on the steel beam 3; such a setting can ensure the safety of the operating personnel, reduce the time for setting up the operating safety protection, facilitate movement, and improve the construction efficiency.

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

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

[0031] Specifically, the two first rollers 111 are respectively arranged on the first connecting rod 113 and the second connecting rod 114, and the two first rollers 111 are arranged in parallel. The center line of the second roller 131, the center line of the third roller 122 and the center line of the first roller 111 are all arranged parallel to the Y direction. In some feasible methods, the center line of the second roller 131 and the center line of the third roller 122 are arranged colinearly.

[0032] During use, the two first rollers 111 are located on the top surface of the steel beam 3, the second roller 131 and the third roller 122 are located inside the steel beam 3, and the first roller 111, the second roller 131 and the third roller 122 are all used to roll on the steel beam 3 to drive the aerial work device 1 to move on the steel beam 3, thereby improving the construction efficiency.

[0033] Furthermore, in this embodiment, a fixing hole 1121 and a rotating hole 1122 are formed on the top surface of one end of the rectangular frame 11 away from the L-shaped rod 12 . The fixing hole 1121 and the rotating hole 1122 are communicated with each other and both pass through the rectangular frame 11 .

[0034] Specifically, a fixing hole 1121 and a rotating hole 1122 are formed on the horizontal plate 112 . The fixing hole 1121 and the rotating hole 1122 both pass through the horizontal plate 112 , and the fixing hole 1121 is communicated with the rotating hole 1122 .

[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 vertical rod 21, a slider 22 and an unlocking unit 23. A slide groove 211 is provided on the outer wall near the bottom end of the hollow vertical rod 21. The slide groove 211 extends along the Z direction. The slide groove 211 is communicated with the cavity of the hollow vertical rod 21. One end of the slider 22 is inserted in the slide groove 211 and is connected to the bottom end of the unlocking unit 23. The slider 22 can slide along the slide groove 211. The top end of the unlocking unit 23 is inserted on the outer wall near the top end of the hollow vertical rod 21. The unlocking unit 23 can slide relative to the hollow vertical rod 21. The bottom end of the hollow vertical rod 21 passes through one end of the rectangular frame 11 away from the L-shaped rod 12 and is connected to the end of the horizontal rod 13. The slide groove 211 is located at the upper part of the rectangular frame 11, and the hollow vertical rod 21 can rotate relative to the rectangular frame 11.

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

[0038] In this embodiment, the hollow vertical rod 21 is made of square steel, and the hollow vertical rod 21 is matched with the fixing hole 1121 .

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

[0040] Furthermore, in this embodiment, a first limiting U-shaped plate 212 and a second limiting U-shaped plate 213 are provided on the outer wall near the bottom end of the hollow vertical pole 21, and the first limiting U-shaped plate 212 and the second limiting U-shaped plate 213 are spaced apart along the Z direction, and 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 providing the first limiting U-shaped plate 212 and the second limiting U-shaped plate 213, the hollow vertical pole 21 is prevented from being separated from the horizontal plate 112, thereby improving 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] Furthermore, in this embodiment, the unlocking unit 23 includes a sliding rod 231 and a steel wire rope 232. A sliding opening 214 is provided on the outer wall near the top of the hollow vertical rod 21. The sliding opening 214 is communicated 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 opening 214 and is connected to one end of the steel wire rope 232. The sliding rod 231 can slide along the sliding opening 214. The end of the steel wire rope 232 away from the sliding rod 231 is connected to the slider 22, and the steel wire rope 232 can move relative to the hollow vertical rod 21.

[0043] Specifically, a limit plate 2311 is provided on the outer peripheral wall of one end of the sliding rod 231 inserted into the cavity of the hollow upright rod 21 to prevent the sliding rod 231 from sliding out of the sliding opening 214 .

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

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

[0046] Furthermore, in this embodiment, a ring 215 for connecting with the safety belt 2 is provided at the top end of the hollow vertical pole 21 .

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

[0048] The aerial work device 1 provided in the present application includes a mounting frame 10 and a control component 20; the mounting frame 10 includes 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 to the bottom end of the rectangular frame 11, the top end of the control component 20 is used to connect with the external safety belt 2, the bottom end of the control component 20 passes through the end of the rectangular frame 11 away from the L-shaped rod 12 and is connected to the end of the horizontal rod 13, the horizontal rod 13 and the horizontal part 121 of the L-shaped rod 12 are arranged opposite to each other, the control component 20 and the horizontal rod 13 can both rotate relative to the rectangular frame 11, and the rotation of the control component 20 drives the rotation of the horizontal rod 13 to realize the opening and closing of the mounting frame 10; 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 the two first rollers 111 can rotate relative to the rectangular frame 11; a second roller 131 is arranged at one end of the horizontal rod 13 away from the control component 20, and the second roller 131 can rotate relative to the horizontal rod 13; a third roller 122 is arranged on the horizontal portion 121 of the L-shaped rod 12, and the third roller 122 can rotate relative to the L-shaped rod 12, and the second roller 131 and the third roller 122 are arranged at intervals along the Y direction; the mounting frame 10 is used to be clamped on the steel beam 3, and the first roller 111, the second roller 131 and the third roller 122 are all used to roll on the steel beam 3; such an arrangement can ensure the safety of the operating personnel, reduce the time for setting up the operating safety protection, facilitate movement, and improve the construction efficiency.

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

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0051] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A high-altitude working device, characterized in that: Includes mounting frame and 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 to the bottom end of the rectangular frame, the top end of the control assembly is used to connect to an external safety belt, the bottom end of the control assembly passes through an end of the rectangular frame away from the L-shaped rod and is connected to the end of the horizontal rod, the horizontal rod is arranged opposite to the horizontal part of the L-shaped rod, the control assembly and the horizontal rod can both rotate relative to the rectangular frame, and the rotation of the control assembly drives the horizontal rod to rotate, so as 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 at intervals along the X direction, and the two first rollers can rotate relative to the rectangular frame; a second roller is arranged at one end of the horizontal rod away from the control assembly, and the second roller can rotate relative to the horizontal rod; a third roller is arranged on the horizontal part of the L-shaped rod, and the third roller can rotate relative to the L-shaped rod, and the second roller and the third roller are arranged at intervals along the Y direction; The mounting frame is used for being clamped on the steel beam, and the first roller, the second roller and the third roller are all used for rolling on the steel beam.

2. The aerial work device according to claim 1, characterized in that: A fixing hole and a rotating hole are formed on the top surface of one end of the rectangular frame away from the L-shaped rod. The fixing hole is communicated with the rotating hole, and both the fixing hole and the rotating hole pass through the rectangular frame.

3. The aerial work device according to claim 2, characterized in that: The control assembly includes a hollow vertical rod, a slider and an unlocking unit, a sliding groove is provided on the outer wall near 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 slider is inserted in the sliding groove and connected with the bottom end of the unlocking unit, the slider can slide along the sliding groove, the top end of the unlocking unit is inserted on the outer wall near 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 passes through one end of the rectangular frame away from the L-shaped rod, and is connected to the end of the horizontal rod, the sliding groove is located at 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 a closed state, the bottom end of the hollow vertical rod is inserted into the fixing hole, the slider is inserted into the rotating hole, the outer wall of the slider 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 an open state, the unlocking unit pulls the slider to slide along the slide groove, the slider 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, and the hollow vertical rod drives the horizontal rod to rotate, so that the mounting frame is opened.

4. The aerial work device according to claim 3, characterized in that: A first limiting U-shaped plate and a second limiting U-shaped plate are arranged on the outer wall near the bottom end of the hollow vertical rod, and 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 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 device according to claim 3, characterized in that: The unlocking unit includes a sliding rod and a steel wire rope. A sliding opening is provided on the outer wall near the top end of the hollow vertical pole. The sliding opening is communicated with the cavity of the hollow vertical pole. The steel wire rope is located in the hollow vertical pole. One end of the sliding rod is inserted into the cavity of the hollow vertical pole through the sliding opening and is connected to one end of the steel wire rope. The sliding rod can slide along the sliding opening. One 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 vertical pole.

6. The aerial work device 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, and the first vertical opening, the inclined opening, the horizontal opening and the second vertical opening are connected in sequence from top to bottom.

7. The aerial work device according to claim 3, characterized in that: The top end of the hollow vertical pole is provided with a ring for connecting with a safety belt.

8. The aerial work device according to claim 2, characterized in that: The fixing hole is a square hole.

9. The aerial work device according to claim 2, characterized in that: The rotating hole is a circular hole.

10. The aerial work device according to claim 1, characterized in that: The diameter of the second roller and the diameter of the third roller are both smaller than the diameter of the first roller.

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