Overhead working truck

Abstract

The utility model relates to the technical field of special automobiles, and discloses an overhead working truck which comprises a truck body, a lifting mechanism arranged on the truck body and a swing mechanism connected to the driving end of the lifting mechanism, the lifting mechanism is used for driving the swing mechanism to adjust the spatial position, and the swing mechanism comprises a first swing arm and a second swing arm. One end of the first swing arm is rotationally connected to the driving end of the lifting mechanism around a first axis, one end of the second swing arm is rotationally connected to the other end of the first swing arm around a second axis, the first axis and the second axis are both parallel to the height direction of the vehicle body, and a working bucket is movably arranged at the other end of the second swing arm in the height direction. The operation flexibility is good, the position adjustability of the working bucket is good, and the adjustable range is wide.

Description

Technical Field

[0001] This utility model relates to the field of special vehicle technology, and in particular to an aerial work platform vehicle. Background Technology

[0002] Aerial work platforms are special vehicles used for working at heights, widely applied in construction, power, and telecommunications industries. They are equipped with a work bucket, allowing workers to stand inside and be lifted to a height for operations. In existing technology, the work bucket is typically raised using a lifting arm. To improve practicality and convenience, the lifting arm is often designed as a telescopic arm, extending and retracting to increase the adjustable range of the work bucket's position. Furthermore, a slewing mechanism is used to adjust the bucket's angle. However, adjusting the bucket angle via this slewing mechanism changes the distance between the work bucket and the work surface, making it difficult to achieve the optimal operating position. Utility Model Content

[0003] Based on the above, the purpose of this utility model is to provide an aerial work platform with better operational flexibility and a wider range of adjustable working bucket positions.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An aerial work platform includes a vehicle body, a lifting mechanism mounted on the vehicle body, and a swing mechanism connected to the drive end of the lifting mechanism. The lifting mechanism is used to drive the swing mechanism to adjust the spatial position.

[0006] The swing mechanism includes a first swing arm and a second swing arm. One end of the first swing arm is rotatably connected to the drive end of the lifting mechanism about a first axis, and one end of the second swing arm is rotatably connected to the other end of the first swing arm about a second axis. Both the first axis and the second axis are parallel to the height direction of the vehicle body.

[0007] The other end of the second swing arm is equipped with a working bucket that moves along the height direction.

[0008] As a preferred embodiment of an aerial work platform, the swing mechanism further includes a first rotary drive component and a second rotary drive component;

[0009] The first rotary drive is disposed at the drive end of the lifting mechanism, and one end of the first swing arm is connected to the output end of the first rotary drive. The first rotary drive is used to drive the first swing arm to rotate around the first axis.

[0010] The second rotary drive is disposed at the other end of the first swing arm, and one end of the second swing arm is connected to the output end of the second rotary drive. The second rotary drive is used to drive the second swing arm to rotate around the second axis.

[0011] As a preferred embodiment of an aerial work platform, the first slewing drive component includes a first drive source, a first worm gear, and a first worm wheel. The first worm gear and the first worm wheel mesh, the central axis of the first worm wheel is parallel to the height direction, one end of the first swing arm is fixedly connected to the first worm wheel, and the first drive source drives the first worm gear to rotate, thereby causing the first worm wheel to rotate.

[0012] As a preferred embodiment of an aerial work platform, the second slewing drive component includes a second drive source, a second worm gear, and a second worm wheel. The second worm gear and the second worm wheel mesh with each other. The central axis of the second worm wheel is parallel to the height direction. One end of the second swing arm is fixedly connected to the second worm wheel. The second drive source drives the second worm gear to rotate, thereby causing the second worm wheel to rotate.

[0013] As a preferred embodiment of an aerial work platform, it also includes a drive assembly. A mounting base is provided on one outer side of the work bucket, and a mounting block is provided at one end of the second swing arm away from the first swing arm. The drive assembly is disposed between the mounting base and the mounting block and is used to drive the mounting block and the mounting base to move relative to each other along the height direction.

[0014] As a preferred embodiment of an aerial work platform, it also includes a sliding assembly, which includes a slide rail and a slider. The slide rail is disposed on the mounting base, and the slider is disposed on the mounting block. The slider and the slide rail are slidably connected.

[0015] As a preferred embodiment of an aerial work platform, the lifting mechanism includes a support arm and a telescopic arm. One end of the support arm is rotatably mounted on the vehicle body about a third axis, which is parallel to the height direction. One end of the telescopic arm is rotatably connected to the other end of the support arm about a fourth axis, which is perpendicular to the third axis. A first swing arm is connected to the other end of the telescopic arm, and the length of the telescopic arm is adjustable.

[0016] As a preferred embodiment of an aerial work platform, the lifting mechanism further includes a hydraulic cylinder, one end of which is rotatably connected to the support arm and the other end of which is rotatably connected to the telescopic arm.

[0017] As a preferred embodiment of an aerial work platform, two hydraulic cylinders are provided, with the two hydraulic cylinders located on opposite sides of the support arm.

[0018] As a preferred embodiment of an aerial work platform, it also includes telescopic support legs, which are mounted on the vehicle body and whose bottoms can be supported on the ground.

[0019] The beneficial effects of this utility model are as follows:

[0020] This utility model provides an aerial work platform. After the platform reaches the designated work location, the lifting mechanism raises the work bucket to a coarse working position. Then, by rotating the first and second swing arms, the working position of the work bucket is finely adjusted. This allows the work bucket to move flexibly within a certain range during operation with high adjustment precision, facilitating operation by the worker inside the work bucket and improving work efficiency and effectiveness. The first and second swing arms also provide a wider adjustable range and better flexibility for the work bucket, maintaining an optimal distance from the work surface. Simultaneously, moving the work bucket up and down within the working range facilitates convenient and quick adjustments to the working position during operation. This aerial work platform provides workers with a wide range of working position adjustments during operation, eliminating the need for frequent adjustments to the lifting mechanism, and offering high adjustment precision, flexibility, and convenience. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0022] Figure 1 This is a structural schematic diagram of the aerial work platform provided in this embodiment of the utility model;

[0023] Figure 2 This is a side view of the swing mechanism and work bucket of the aerial work platform provided in this embodiment of the utility model;

[0024] Figure 3 A top view of the swing mechanism and work bucket of the aerial work platform provided in this embodiment of the utility model.

[0025] In the picture:

[0026] 1. Vehicle body; 2. Lifting mechanism; 21. Support arm; 22. Telescopic arm; 23. Hydraulic cylinder; 3. Swing mechanism; 31. First swing arm; 32. Second swing arm; 33. First rotary drive component; 331. First drive source; 332. First worm gear; 333. First worm wheel; 34. Second rotary drive component; 341. Second drive source; 342. Second worm gear; 343. Second worm wheel; 4. Working bucket; 5. Mounting base; 6. Mounting block. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0028] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used solely for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Furthermore, the terms "first" and "second" are merely used for descriptive distinction and have no special meaning.

[0031] like Figures 1 to 3 As shown, this embodiment provides an aerial work platform vehicle, which includes a vehicle body 1, a lifting mechanism 2 mounted on the vehicle body 1, and a swing mechanism 3 connected to the drive end of the lifting mechanism 2. The lifting mechanism 2 is used to drive the swing mechanism 3 to adjust the spatial position. The swing mechanism 3 includes a first swing arm 31 and a second swing arm 32. One end of the first swing arm 31 is rotatably connected to the drive end of the lifting mechanism 2 around a first axis, and one end of the second swing arm 32 is rotatably connected to the other end of the first swing arm 31 around a second axis. Both the first axis and the second axis are parallel to the height direction of the vehicle body 1. The other end of the second swing arm 32 is movably provided with a working bucket 4 along the height direction. After the aerial work platform arrives at the designated work location, the worker enters the work bucket 4. The lifting mechanism 2 then roughly raises the work bucket 4 to the working position. Next, by rotating the first swing arm 31 and the second swing arm 32, the working position of the work bucket 4 is finely adjusted. This allows the work bucket 4 to move flexibly within a certain range during work, with high adjustment precision. This facilitates operation by the worker inside the work bucket 4, improving work efficiency and effectiveness. Furthermore, the coordinated movement of the first swing arm 31 and the second swing arm 32 allows for a wider adjustable range and better flexibility of the work bucket 4, maintaining an optimal distance from the work surface. Simultaneously, moving the work bucket 4 up and down within the working range facilitates convenient and quick adjustments to the working position during work. This aerial work platform provides the worker with a wide range of working position adjustments during work, eliminating the need for frequent adjustments to the lifting mechanism 2, and offering high adjustment precision, flexibility, and convenience.

[0032] Preferably, the vehicle body 1 is equipped with one, two, or more telescopic support legs, the bottom of which can be supported on the ground. After the aerial work platform arrives at the work site, the telescopic support legs extend to stabilize the vehicle body 1 and ensure stability during operation.

[0033] Specifically, the lifting mechanism 2 includes a support arm 21 and a telescopic arm 22. One end of the support arm 21 is rotatably mounted on the vehicle body 1 around a third axis, which is parallel to the height direction. One end of the telescopic arm 22 is rotatably connected to the other end of the support arm 21 around a fourth axis, which is perpendicular to the third axis. A first swing arm 31 is connected to the other end of the telescopic arm 22, and the length of the telescopic arm 22 is adjustable. After the aerial work platform arrives at the designated location, the support arm 21 is rotated according to the actual working conditions, and the telescopic arm 22 is raised and extended to lift the work bucket 4 to the predetermined working height. Then, during the working process, the swing mechanism 3 is adjusted so that the work bucket 4 is always in the optimal working position. After the work is completed, the telescopic arm 22 is retracted, that is, the work bucket 4 is closed, so that the aerial work platform can travel on the road. The telescopic arm 22 can be, but is not limited to, hydraulically driven. In practice, in order to make the working range of the working bucket 4 higher and wider, the telescopic arm 22 is longer. By setting the swing mechanism 3, the working position of the working bucket 4 can be adjusted flexibly and accurately. Moreover, the adjustment of the swing mechanism 3 is less affected by the external environment and is less likely to interfere with external objects during the operation.

[0034] In this embodiment, the support arm 21 is mounted on the vehicle body 1 via a rotary mechanism. The rotary mechanism is preferably a worm gear rotary mechanism. Specifically, the rotary mechanism includes a rotary drive source, a rotary worm, and a rotary worm wheel. The rotary drive source drives the rotary worm to rotate, thereby causing the rotary worm wheel meshing with the rotary worm to rotate. One end of the support arm 21 is fixedly connected to the rotary worm wheel, and the rotation of the rotary worm wheel causes the support arm 21 to rotate.

[0035] More specifically, the lifting mechanism 2 also includes a hydraulic cylinder 23, one end of which is rotatably connected to the support arm 21, and the other end is rotatably connected to the telescopic arm 22. By extending and retracting the hydraulic cylinder 23, the telescopic arm 22 can be raised and lowered, that is, the working bucket 4 can be lifted and lowered.

[0036] Preferably, two hydraulic cylinders 23 are provided, and the two hydraulic cylinders 23 are located on opposite sides of the support arm 21. The two hydraulic cylinders 23 are arranged on opposite sides, which makes the telescopic arm 22 more stable, the lifting and lowering stability is also better, and the load-bearing capacity is better.

[0037] More preferably, near the junction of the support arm 21 and the telescopic arm 22, a hydraulic cylinder 23 is also connected between the support arm 21 and the telescopic arm 22 to enhance the driving force for the telescopic arm 22 to pitch.

[0038] Furthermore, such as Figure 2 and Figure 3As shown, the swing mechanism 3 also includes a first rotary drive 33 and a second rotary drive 34. The first rotary drive 33 is located at the drive end of the lifting mechanism 2. One end of the first swing arm 31 is connected to the output end of the first rotary drive 33, and the first rotary drive 33 is used to drive the first swing arm 31 to rotate around a first axis. The second rotary drive 34 is located at the other end of the first swing arm 31. One end of the second swing arm 32 is connected to the output end of the second rotary drive 34, and the second rotary drive 34 is used to drive the second swing arm 32 to rotate around a second axis. By driving the second rotary drive 34, the working bucket 4 swings around the end of the second swing arm 32, which can adjust the position of the working bucket 4 in a timely, fast and accurate manner within a small range. By driving the first rotary drive 33, the second swing arm 32 swings around the end of the first swing arm 31, which can expand the swing adjustment range of the working bucket. Moreover, the combined movement of the first swing arm 31 and the second swing arm 32 makes the working bucket 4 move relatively smoothly during the movement, and can realize the linear and curved movement of the working bucket 4, with good adjustment flexibility.

[0039] Specifically, the first rotary drive component 33 includes a first drive source 331, a first worm 332, and a first worm wheel 333. The first worm 332 and the first worm wheel 333 mesh, with the central axis of the first worm wheel 333 parallel to the height direction. One end of the first swing arm 31 is fixedly connected to the first worm wheel 333. The first drive source 331 drives the first worm 332 to rotate, thereby causing the first worm wheel 333 to rotate. The first worm 332 and the first worm wheel 333 have a simple structure, high structural stability, and good load-bearing capacity, enabling them to stably drive the first swing arm 31 to rotate.

[0040] Similarly, the second rotary drive 34 has the same structure as the first rotary drive 33, specifically including a second drive source 341, a second worm 342 and a second worm wheel 343. The second worm 342 and the second worm wheel 343 mesh with each other. The central axis of the second worm wheel 343 is parallel to the height direction. One end of the second swing arm 32 is fixedly connected to the second worm wheel 343. The second drive source 341 drives the second worm 342 to rotate, thereby driving the second worm 342 to rotate and causing the second worm wheel 343 to rotate.

[0041] Furthermore, the aerial work platform also includes a drive assembly. A mounting base 5 is provided on one outer side of the work bucket 4, and a mounting block 6 is provided at the end of the second swing arm 32 opposite to the first swing arm 31. The drive assembly is positioned between the mounting base 5 and the mounting block 6, and is used to drive the mounting block 6 and the mounting base 5 to move relative to each other in the height direction. The mounting block 6 and the mounting base 5 facilitate the connection and installation of the work bucket 4 with the second swing arm 32; by driving the mounting base 5 and the mounting block 6 to move relative to each other through the drive assembly, the work bucket 4 can move in the height direction, i.e., move up and down, thereby expanding the adjustable range of the work bucket 4.

[0042] For example, the drive assembly includes a drive hydraulic rod or a drive cylinder. One end of the drive hydraulic rod is connected to the mounting base 5, and the other end is connected to the mounting block 6. The length of the drive hydraulic rod extends along the height direction, and the extension and retraction of the drive hydraulic rod causes the mounting block 6 to move up and down relative to the mounting base 5. Alternatively, the drive cylinder is mounted on the mounting base 5, and its drive end is connected to the mounting block 6. The extension and retraction of the drive cylinder's drive end causes the mounting block 6 to move up and down. Of course, in other embodiments, the drive assembly can also have other structures, such as a lead screw structure.

[0043] Preferably, the aerial work platform also includes a sliding assembly, which comprises a slide rail and a slider. The slide rail is mounted on the mounting base 5, and the slider is mounted on the mounting block 6. The slider and the slide rail are slidably connected. This slidable connection between the slider and the slide rail improves the smoothness of the sliding of the mounting block 6 relative to the mounting base 5, enhancing the smoothness of the vertical movement of the work platform 4 and saving power.

[0044] In this embodiment, the aerial work platform also includes a controller. The first drive source 331, the second drive source 341, and the drive assembly are all electrically connected to the controller. The controller is used to control the start and stop of the first drive source 331, the second drive source 341, and the drive assembly. Preferably, a control panel is provided on the work bucket 4, and the controller is electrically connected to the control panel, which allows the operator to directly control the swing of the first swing arm 31 and the second swing arm 32 and the up and down movement of the work bucket 4 from within the work bucket 4, which is convenient and quick.

[0045] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. An aerial work platform vehicle, characterized in that, It includes a vehicle body, a lifting mechanism mounted on the vehicle body, and a swing mechanism connected to the drive end of the lifting mechanism. The lifting mechanism is used to drive the swing mechanism to adjust the spatial position. The swing mechanism includes a first swing arm and a second swing arm. One end of the first swing arm is rotatably connected to the drive end of the lifting mechanism about a first axis, and one end of the second swing arm is rotatably connected to the other end of the first swing arm about a second axis. Both the first axis and the second axis are parallel to the height direction of the vehicle body. The other end of the second swing arm is equipped with a working bucket that moves along the height direction.

2. The aerial work platform vehicle according to claim 1, characterized in that, The swing mechanism further includes a first rotary drive and a second rotary drive; The first rotary drive is disposed at the drive end of the lifting mechanism, and one end of the first swing arm is connected to the output end of the first rotary drive. The first rotary drive is used to drive the first swing arm to rotate around the first axis. The second rotary drive is disposed at the other end of the first swing arm, and one end of the second swing arm is connected to the output end of the second rotary drive. The second rotary drive is used to drive the second swing arm to rotate around the second axis.

3. The aerial work platform vehicle according to claim 2, characterized in that, The first rotary drive component includes a first drive source, a first worm gear, and a first worm wheel. The first worm gear and the first worm wheel mesh with each other. The central axis of the first worm wheel is parallel to the height direction. One end of the first swing arm is fixedly connected to the first worm wheel. The first drive source drives the first worm gear to rotate and drive the first worm wheel to rotate.

4. The aerial work platform vehicle according to claim 2, characterized in that, The second rotary drive includes a second drive source, a second worm and a second worm wheel. The second worm and the second worm wheel mesh with each other. The central axis of the second worm wheel is parallel to the height direction. One end of the second swing arm is fixedly connected to the second worm wheel. The second drive source drives the second worm to rotate and drives the second worm wheel to rotate.

5. The aerial work platform vehicle according to claim 1, characterized in that, It also includes a drive assembly, wherein a mounting base is provided on one outer side of the working bucket, a mounting block is provided at one end of the second swing arm opposite to the first swing arm, and the drive assembly is disposed between the mounting base and the mounting block for driving the mounting block and the mounting base to move relative to each other along the height direction.

6. The aerial work platform vehicle according to claim 5, characterized in that, It also includes a sliding component, which includes a slide rail and a slider. The slide rail is disposed on the mounting base, and the slider is disposed on the mounting block. The slider and the slide rail are slidably connected.

7. The aerial work platform vehicle according to claim 1, characterized in that, The lifting mechanism includes a support arm and a telescopic arm. One end of the support arm is rotatably mounted on the vehicle body about a third axis, which is parallel to the height direction. One end of the telescopic arm is rotatably connected to the other end of the support arm about a fourth axis, which is perpendicular to the third axis. A first swing arm is connected to the other end of the telescopic arm. The length of the telescopic arm is adjustable.

8. The aerial work platform vehicle according to claim 7, characterized in that, The lifting mechanism also includes a hydraulic cylinder, one end of which is rotatably connected to the support arm and the other end of which is rotatably connected to the telescopic arm.

9. The aerial work platform vehicle according to claim 8, characterized in that, Two hydraulic cylinders are provided, and the two hydraulic cylinders are located on opposite sides of the support arm.

10. The aerial work platform vehicle according to claim 1, characterized in that, It also includes telescopic support legs, which are mounted on the vehicle body and whose bottoms can be supported on the ground.

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