Height-adjustable climbing operation vehicle

Abstract

The utility model relates to the technical field of construction engineering, in particular to a height-adjustable climbing operation vehicle which comprises a platform, a ladder and at least two supporting legs, the ladder and the two supporting legs are connected with the platform to support the platform, the ladder is used for a constructor to climb, and the ladder is used for the constructor to climb. The platform is used for allowing constructors to stand, the end, away from the platform, of the ladder and the end, away from the platform, of the supporting leg are located on the same horizontal plane, and the length of the supporting leg and the length of the ladder can be adjusted so that the distance between the platform and the ground can be adjusted. The distance between the platform and the ground is adjusted by adjusting the lengths of the supporting legs and the ladder, the platform can be adjusted to a proper height according to aloft work of different heights, climbing work vehicles of other heights do not need to be carried additionally, time and labor are saved, practicability is high, and then construction cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, in particular to an adjustable height climbing operation vehicle. Background Art

[0002] During the installation and construction of nuclear power plants, on-site installation requires a large amount of high-altitude work. At present, when high-altitude work is encountered during on-site installation, construction workers often use single-item mobile aerial work vehicles to carry out the work.

[0003] The existing single-item mobile high-altitude work vehicle includes a platform, a climbing ladder with a support frame installed on both sides of the bottom of the platform, a reinforcing rod is fixedly connected between the support frame and the climbing ladder, and a plurality of universal wheels for movement are installed at the bottom of the climbing ladder and the support frame. When the staff climbs up to the platform through the climbing ladder to work, the brake foot of the universal wheel is lowered to fix the position of the work vehicle. When the work vehicle needs to be moved, the brake foot of the universal wheel is opened to move the work vehicle.

[0004] At present, a single mobile aerial work vehicle is used for aerial work. Since a single type of single mobile aerial work vehicle can only meet the high-altitude work of one height, when another aerial work vehicle of another height is needed indoors, it is necessary to transport the aerial work vehicle of the corresponding height, which is time-consuming, labor-intensive and impractical, and increases the construction cost. Utility Model Content

[0005] (I) The problem to be solved by the utility model is: how to make the aerial work vehicle suitable for high-altitude operations at various heights and improve its practicality.

[0006] (II) Technical solution

[0007] The utility model provides an adjustable height climbing work vehicle, comprising: a platform, a ladder and supporting legs, wherein at least two supporting legs are provided, and the ladder and the two supporting legs are connected to the platform to support the platform;

[0008] The ladder is used for construction workers to climb, and the platform is used for construction workers to stand;

[0009] An end of the ladder away from the platform and an end of the support leg away from the platform are located on the same horizontal plane;

[0010] The lengths of the supporting legs and the ladder are both adjustable to adjust the distance from the platform to the ground.

[0011] According to an embodiment of the utility model, the ladder comprises a first ladder body and at least one second ladder body in the direction from the platform to the ground, and a first connecting member for changing the angle between the first ladder body and the second ladder body is provided between the first ladder body and the second ladder body;

[0012] One end of the first ladder body away from the second ladder body is connected to the platform.

[0013] According to an embodiment of the utility model, the support leg includes a first support rod and at least one second support rod in sequence along the direction from the platform to the ground, and a second connecting member for changing the angle between the first support rod and the second support rod is provided between the first support rod and the second support rod;

[0014] One end of the first support rod away from the second support rod is connected to the platform;

[0015] The bottom end of the first ladder body and the bottom end of the first support rod are located on the same horizontal plane.

[0016] According to an embodiment of the present utility model, two second ladder bodies are provided, and a first connecting member for folding the two second ladder bodies is provided between two adjacent second ladder bodies.

[0017] According to an embodiment of the utility model, two second support rods are provided, and a second connecting member for folding the two second support rods is provided between two adjacent second support rods.

[0018] According to an embodiment of the present utility model, the first connecting member is a first joint ladder buckle, one end of the first joint ladder buckle is connected to the first ladder body, and the other end of the first joint ladder buckle is connected to the second ladder body.

[0019] According to an embodiment of the present utility model, the second connecting member is a second joint ladder buckle, one end of the second joint ladder buckle is connected to the first support rod, and the other end thereof is connected to the second support rod.

[0020] According to an embodiment of the utility model, the first ladder body and the second ladder body each include two mutually parallel handrails, and a plurality of foot pedals are fixedly connected between the two mutually parallel handrails, and the foot pedals are perpendicular to the handrails.

[0021] According to an embodiment of the utility model, a moving mechanism is provided between the first ladder body and the first support rod, and the moving mechanism drives the platform to move;

[0022] The moving mechanism includes an adjustment assembly and a plurality of casters;

[0023] The multiple casters are located on the same horizontal plane, and the distances from the multiple casters to the ground are adjusted by the adjustment assembly.

[0024] According to one embodiment of the utility model, a handrail mechanism is provided on the platform, and the handrail mechanism includes a rotating rod, a concave fence and two handrail rods. The concave fence is installed on the platform, and its two sides are respectively fixedly connected to one end of the two handrail rods, and the other ends of the two handrail rods are fixedly connected to the ladder. One end of the rotating rod is hinged to the concave fence, and the other end of the rotating rod is buckled with the concave fence.

[0025] Beneficial effects of the utility model:

[0026] By adjusting the length of the supporting legs and the ladder, and thus adjusting the distance from the platform to the ground, the platform can be adjusted to a suitable height according to aerial operations at different heights. There is no need to transport aerial work vehicles of other heights, which saves time and effort and is highly practical, thereby reducing construction costs. In addition, since the height from the platform to the ground can be changed, when the platform passes through an indoor door frame, the height of the platform can be lowered to facilitate its quick passage through the door frame. There is no need to manually lay it down for passage, which saves time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 A perspective view of the aerial work vehicle provided by the embodiment of the utility model;

[0029] Figure 2 A folded three-dimensional diagram of the aerial work vehicle provided in an embodiment of the utility model;

[0030] Figure 3 A three-dimensional diagram of a first joint ladder buckle provided in an embodiment of the utility model.

[0031] Icons: 1. Platform; 2. Ladder; 201. First joint ladder buckle; 2011. Hinge; 2012. Secondary connecting rod; 2013. Main connecting rod; 2014. Locking device; 202. First ladder body; 203. Second ladder body; 3. Support leg; 301. Second joint ladder buckle; 302. First support rod; 303. Second support rod; 4. Moving mechanism; 401. First square rod; 402. Second square rod; 403. Third party rod; 404. Concave rod; 5. Handrail mechanism; 501. Rotating rod; 502. Concave fence; 503. Handrail rod. DETAILED DESCRIPTION

[0032] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] like Figures 1 to 3 As shown, an embodiment of the utility model provides an adjustable height climbing work vehicle, comprising: a platform 1, a ladder 2 and a support leg 3, at least two support legs 3 are provided, and the ladder 2 and the two support legs 3 are connected to the platform 1 to support the platform 1;

[0034] The ladder 2 is used for construction workers to climb, and the platform 1 is used for construction workers to stand;

[0035] An end of the ladder 2 away from the platform 1 and an end of the support leg 3 away from the platform 1 are located on the same horizontal plane;

[0036] The lengths of the support legs 3 and the ladder 2 are both adjustable to adjust the distance between the platform 1 and the ground.

[0037] Specifically, by adjusting the length of the supporting legs 3 and the ladder 2, and then adjusting the distance from the platform 1 to the ground, the platform 1 can be adjusted to a suitable height according to high-altitude operations at different heights. There is no need to transport aerial work vehicles of other heights, which saves time and effort and is highly practical, thereby reducing construction costs.

[0038] Furthermore, since the height of the platform 1 from the ground can be changed, when the platform 1 passes through a door frame indoors, the height of the platform 1 can be lowered to facilitate its rapid passage through the door frame, without the need to manually lay it down for passage, thus saving time and effort.

[0039] According to one embodiment of the utility model, Figure 1 As shown, the ladder 2 includes a first ladder body 202 and at least one second ladder body 203 in the direction from the platform 1 to the ground, and a first connecting member for changing the angle between the first ladder body 202 and the second ladder body 203 is provided between the first ladder body 202 and the second ladder body 203;

[0040] One end of the first ladder body 202 away from the second ladder body 203 is connected to the platform 1 .

[0041] According to one embodiment of the utility model, Figure 1 As shown, two support legs 3 are provided, and the support legs 3 sequentially include a first support rod 302 and at least one second support rod 303 along the direction from the platform 1 to the ground, and a second connecting member for changing the angle between the first support rod 302 and the second support rod 303 is provided between the first support rod 302 and the second support rod 303;

[0042] One end of the first support rod 302 away from the second support rod 303 is connected to the platform 1;

[0043] The bottom end of the first ladder body 202 and the bottom end of the first support rod 302 are located on the same horizontal plane.

[0044] Preferably, one second ladder body 203 and one second support rod 303 are each provided.

[0045] The angle between the first ladder body 202 and the second ladder body 203 is changed by the first connecting member (the first ladder body 202 and the second ladder body 203 are folded), thereby changing the length of the ladder 2. It should be noted that the ladder 2 has two states. When the first ladder body 202 and the second ladder body 203 are folded (such as Figure 2 As shown), the angle between the first ladder body 202 and the second ladder body 203 is 0° (of course, the angle when folded is not 0°, as long as the first ladder body 202 can be brought close to the second ladder body 203).

[0046] One end of the second ladder body 203 is in contact with the ground, and the height of the ladder 2 can be changed. The ladder 2 is in a retracted state. When the angle between the first ladder body 202 and the second ladder body 203 is 180° (such as Figure 1 As shown), the ladder 2 is in the unfolded state (of course, the angle in the unfolded state may not be 180°, as long as the end of the first ladder body 202 close to the second ladder body 203 can be brought into contact with the ground to change the height of the ladder 2).

[0047] The first support rod 302 and the second support rod 303 are folded by the second connecting member, thereby changing the length of the support leg 3. It should be noted here that the support leg 3 has two states. When the first support rod 302 and the second support rod 303 are folded, the angle between the first support rod 302 and the second support rod 303 is 0° (of course, the angle during folding may not be 0°, as long as the end of the first support rod 302 close to the second support rod 303 can be in contact with the ground, and the height of the support leg 3 can be changed). The support leg 3 is in a retracted state. When the angle between the first support rod 302 and the second support rod 303 is 180°, the support leg 3 is in an expanded state (of course, the angle during the expanded state may not be 180°, as long as the end of the first support rod 302 close to the second support rod 303 can be in contact with the ground, and the height of the support leg 3 can be changed).

[0048] Of course, in this embodiment, the ladder 2 can also be composed of a first ladder body 202 and a second ladder body 203 that are slidably connected to each other, and a sliding groove that matches the size of the first ladder body 202 is provided on the second ladder body 203. The second ladder body 203 is moved to change the length of the first ladder body 202 that enters the sliding groove, thereby adjusting the length of the ladder 2. Its purpose does not deviate from the design concept of the utility model, and therefore, it should belong to the protection scope of the utility model.

[0049] The supporting leg 3 can also be composed of a first supporting rod 302 and a second supporting rod 303 which are slidably connected to each other. A sliding groove which is adapted to the size of the first supporting rod 302 is opened in the second supporting rod 303. Moving the second supporting rod 303 changes the length of the first supporting rod 302 entering the sliding groove, thereby adjusting the length of the supporting leg 3. Its purpose does not deviate from the design concept of the present invention and, therefore, should fall within the protection scope of the present invention.

[0050] Furthermore, it should be noted that the length of the first support rod 302 is greater than the length of the second support rod 303, and the length of the first ladder body 202 is greater than the length of the second ladder body 203, so that after the second ladder body 203 and the first ladder body 202 are folded, the second ladder body 203 will not be higher than the upper surface of the platform 1, making it convenient for construction workers to get on the platform 1.

[0051] Preferably, an angle is formed between the ladder 2 and the ground, which is an acute angle of 60°, so that construction workers can climb from the ladder 2 to the platform 1 and can also stand directly on the ladder 2 to perform construction work.

[0052] Of course, in this embodiment, two or more second ladder bodies 203 and second support rods 303 can be provided, and they can still be used. When the lengths of the second support rods 303 and the second ladder body 203 remain unchanged, the more second support rods 303 and second ladder bodies 203 are provided, the larger the adjustable range of the distance of the platform 1 relative to the ground is, the wider the range of applicable heights is, and the better the practicality is. The fewer the second support rods 303 and second ladder bodies 203 are provided, although the adjustable range of the distance of the platform 1 relative to the ground is smaller, the stability effect is better and the safety performance is high.

[0053] Optionally, in this embodiment, two second ladder bodies 203 are provided, and a first connecting member for folding the two second ladder bodies 203 is provided between two adjacent second ladder bodies 203 .

[0054] Two second support rods 303 are provided, and a second connecting member for folding the two second support rods 303 is provided between two adjacent second support rods 303 .

[0055] When the supporting legs 3 and the ladder 2 are in the unfolded state, the bottom end of the second supporting rod 303 and the bottom end of the second ladder body 203 are both on the same horizontal plane. At this time, the upper surface of the platform 1 is parallel to the horizontal plane, allowing construction workers to stand on the platform 1 to perform construction work.

[0056] According to an embodiment of the present invention, the first connecting member is a first joint ladder buckle 201, one end of the first joint ladder buckle 201 is connected to the first ladder body 202, and the other end thereof is connected to the second ladder body 203. Specifically, the first ladder body 202 and the second ladder body 203 are respectively inserted into the two ends of the first joint ladder buckle 201, and are fixed to the first joint ladder buckle 201 by a plurality of bolts.

[0057] The second connecting member is a second joint ladder buckle 301, one end of which is connected to the first support rod 302, and the other end of which is connected to the second support rod 303. Specifically, the first support rod 302 and the second support rod 303 are respectively inserted into the two ends of the second joint ladder buckle 301, and are fixed to the second joint ladder buckle 301 by a plurality of bolts.

[0058] like Figure 3 As shown, the structure and working principle of the first joint ladder buckle 201 are as follows: the first joint ladder buckle 201 is generally composed of a hinge 2011, a locking device 2014, a main connecting rod 2013 and a secondary connecting rod 2012. The main connecting rod 2013 and the secondary connecting rod 2012 are the main load-bearing parts of the first joint ladder buckle 201, and are generally made of high-strength alloy materials to ensure the stability and durability of the ladder 2. The first ladder body 202 is inserted into and fixed in the main connecting rod 2013, and the second ladder body 203 is inserted into and fixed in the secondary connecting rod 2012. The hinge 2011 is a connecting piece between the main connecting rod 2013 and the secondary connecting rod 2012. Through the hinge 2011, the main connecting rod 2013 and the secondary connecting rod 2012 can move relative to each other to achieve the folding and unfolding of the ladder 2. The locking device 2014 is used to fix the relative position of the main connecting rod 2013 and the secondary connecting rod 2012 (ie, fix the angle between the first ladder body 202 and the second ladder body 203) to prevent the ladder 2 from accidentally folding during use.

[0059] The locking device 214 is a safety guarantee for the ladder 2, which can prevent the ladder 2 from accidentally folding during use. The locking device 214 is usually composed of a buckle, a pin and a spring. When the ladder 2 is unfolded, the buckle will automatically lock on the hinge 2011, so that the main connecting rod 2013 and the secondary connecting rod 2012 remain in a fixed position. When the ladder 2 needs to be folded, just press the buckle, the pin will automatically release, and the connecting rods can move freely relative to each other.

[0060] The first joint ladder buckle 201 and the second joint ladder buckle 301 are different in size. The size of the first joint ladder buckle 201 is larger than that of the second joint ladder buckle 301. Their working principles are the same and are both prior art, which will not be elaborated here.

[0061] Of course, in this embodiment, the first connecting member can also be other structures, and the purpose of folding the first ladder body 202 and the second ladder body 203 can also be achieved. For example, the first connecting member includes a hinge installed between the first ladder body 202 and the second ladder body 203, and also includes a limit rod fixed at one end of the first ladder body 202, and the limit rod is rotatably connected to the limit plate, and the limit plate is provided with a first through hole and a second through hole at the end away from the limit rod, and the radii of the first through hole and the second through hole are the same. A limit column adapted to the first through hole is slidably connected to the second ladder body 203, and the axial direction of the limit column, the axial direction of the first through hole, the axial direction of the second through hole and the sliding direction of the limit column are all the same.

[0062] When the ladder 2 needs to be in an extended state, the limiting column is inserted into the first through hole, thereby fixing the first ladder body 202 and the second ladder body 203. When the ladder 2 needs to be in a retracted state, the limiting plate is rotated, and after the limiting column is aligned with the second through hole, the limiting column is inserted into the second through hole to limit the first ladder body 202 and the second ladder body 203.

[0063] According to an embodiment of the present invention, the first ladder body 202 and the second ladder body 203 each include two mutually parallel handrails, and a plurality of foot pedals are fixedly connected between the two mutually parallel handrails, and the foot pedals are perpendicular to the handrails.

[0064] Furthermore, the foot pedal can be a flat plate to facilitate construction workers to step on. Preferably, anti-skid grooves can be provided on the foot pedal to prevent construction workers from slipping and falling, thereby improving safety.

[0065] The wider the width of the footrest, the better the stability when the worker stands. Therefore, the width of the footrest can be widened within a reasonable range.

[0066] According to an embodiment of the present invention, the moving mechanism 4 is disposed between the first ladder body 202 and the first support rod 302 , and the platform 1 is driven to move by the moving mechanism 4 .

[0067] According to one embodiment of the utility model, the moving mechanism 4 includes an adjustment assembly and a plurality of casters;

[0068] The multiple casters are located on the same horizontal plane, and the distances from the multiple casters to the ground are adjusted by adjusting components.

[0069] Specifically, the adjustment assembly includes two first square rods 401, the two first square rods 401 are fixedly connected between the first support rod 302 and the first ladder body 202, a second square rod 402 is arranged at the bottom of each first square rod 401, the first square rod 401 and the second square rod 402 are movably connected through two third-party rods 403, the bottom of the second square rod 402 is fixedly connected to a plurality of casters, one end of the second square rod 402 is movably connected to a vertical rod, the top end of the vertical rod is hinged with a concave rod 404, and both ends of the concave rod 404 are fixedly connected to a limited position head;

[0070] When the platform 1 needs to be moved, the angle between the concave rod 404 and the movable vertical rod is changed, the concave rod 404 and the limit head clamp one of the foot pedals, and then the angle between the concave rod 404 and the movable vertical rod is restored. At this time, the position of the vertical rod is fixed, and then the positions of the vertical rod and the second square rod 402 are fixed at the same time. At this time, the second square rod 402 and the third rod 403 are vertically arranged, and the casters can be lower than the first support rod 302 and the first ladder body 202, and contact with the ground, which is convenient for moving the position of the platform 1.

[0071] Of course, in this embodiment, the moving mechanism 4 can also be in other forms. For example, the moving mechanism 4 includes a bottom frame, a plurality of casters are fixedly connected to the bottom frame, a horizontal plate fixedly connected to the first ladder body 202 is provided on the top of the bottom frame, and the horizontal plate and the bottom frame are connected by a telescopic rod. The telescopic rod is extended and retracted to achieve the purpose of adjusting the distance from the casters to the ground. Its purpose does not deviate from the design concept of the present utility model, and therefore, it should fall within the protection scope of the present utility model.

[0072] According to one embodiment of the utility model, a handrail mechanism 5 is provided on the platform 1, and the handrail mechanism 5 includes a rotating rod 501, a concave fence 502 and two handrail rods 503. The concave fence 502 is installed on the platform 1, and its two sides are respectively fixedly connected to one end of the two handrail rods 503, and the other ends of the two handrail rods 503 are fixedly connected to the ladder 2. One end of the rotating rod 501 is hinged to the concave fence 502, and the other end thereof is buckled with the concave fence 502.

[0073] The handrail 503 can provide leverage for construction workers when they are climbing the ladder 2, facilitating their climbing while preventing them from falling. The concave fence 502 can remind construction workers of the boundary position of the platform 1 when they are standing on the platform 1 and walking around, preventing them from stepping on empty space and falling off the platform 1. The design of the rotating rod 501 can facilitate construction workers to enter the platform 1, and after the construction workers enter the platform 1, the gap in the concave fence 502 is blocked, thereby completely surrounding the surrounding side of the platform 1, thereby achieving a better reminder effect.

[0074] Specifically, the construction workers walk onto the platform 1 via the foot pedals to carry out construction. When the construction position is raised, the second ladder body 203 and the first ladder body 202 are unfolded by the first joint ladder buckle 201, and the second support rod 303 and the first support rod 302 are unfolded by the second joint ladder buckle 301, so as to increase the height of the platform 1. In addition, if the construction position is between two heights, the construction workers can also stand on the foot pedals to carry out construction. In order to ensure construction safety, the construction workers can hold the handrail 503 with one hand and carry out construction with the other hand.

[0075] In the description of the present invention, it should be noted that the terms "upper" and "lower" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0076] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the insides of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0077] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An adjustable height climbing work vehicle, characterized in that: It comprises a platform (1), a ladder (2) and supporting legs (3), wherein at least two supporting legs (3) are provided, and the ladder (2) and the two supporting legs (3) are connected to the platform (1) to support the platform (1); The ladder (2) is used for construction workers to climb, and the platform (1) is used for construction workers to stand; The end of the ladder (2) away from the platform (1) and the end of the support leg (3) away from the platform (1) are located on the same horizontal plane; The lengths of the supporting legs (3) and the ladder (2) are both adjustable, so as to adjust the distance between the platform (1) and the ground; The ladder (2) comprises a first ladder body (202) and at least one second ladder body (203) in a direction from the platform (1) to the ground, and a first connecting member for changing an angle between the first ladder body (202) and the second ladder body (203) is provided between the first ladder body (202) and the second ladder body (203); One end of the first ladder body (202) away from the second ladder body (203) is connected to the platform (1); The support leg (3) comprises a first support rod (302) and at least one second support rod (303) in sequence along the direction from the platform (1) to the ground, and a second connecting member for changing the angle between the first support rod (302) and the second support rod (303) is provided between the first support rod (302) and the second support rod (303); One end of the first support rod (302) away from the second support rod (303) is connected to the platform (1); The bottom end of the first ladder body (202) and the bottom end of the first support rod (302) are located on the same horizontal plane; Two second ladder bodies (203) are provided, and a first connecting member for folding the two second ladder bodies (203) is provided between two adjacent second ladder bodies (203); Two second support rods (303) are provided, and a second connecting member for folding the two second support rods (303) is provided between two adjacent second support rods (303).

2. The height-adjustable aerial work vehicle according to claim 1, characterized in that: The first connecting member is a first joint ladder buckle (201), one end of the first joint ladder buckle (201) is connected to the first ladder body (202), and the other end of the first joint ladder buckle (201) is connected to the second ladder body (203).

3. The height-adjustable aerial work vehicle according to claim 1, characterized in that: The second connecting member is a second joint ladder buckle (301), one end of the second joint ladder buckle (301) is connected to the first support rod (302), and the other end of the second joint ladder buckle (301) is connected to the second support rod (303).

4. The height-adjustable aerial work vehicle according to claim 1, characterized in that: The first ladder body (202) and the second ladder body (203) each include two mutually parallel handrails, and a plurality of footrests are fixedly connected between the two mutually parallel handrails, and the footrests are perpendicular to the handrails.

5. The height-adjustable aerial work vehicle according to claim 1, characterized in that: A moving mechanism (4) is provided between the first ladder body (202) and the first support rod (302), and the moving mechanism (4) drives the platform (1) to move; The moving mechanism (4) comprises an adjustment component and a plurality of casters; The multiple casters are located on the same horizontal plane, and the distances from the multiple casters to the ground are adjusted by the adjustment assembly.

6. The height-adjustable aerial work vehicle according to claim 1, characterized in that: The platform (1) is provided with a handrail mechanism (5), the handrail mechanism (5) comprising a rotating rod (501), a concave fence (502) and two handrail rods (503); the concave fence (502) is installed on the platform (1), and its two sides are respectively fixedly connected to one end of the two handrail rods (503); the other ends of the two handrail rods (503) are fixedly connected to the ladder (2); one end of the rotating rod (501) is hinged to the concave fence (502), and the other end of the rotating rod (501) is buckled with the concave fence (502).

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