Movable aerial work platform structure with self-hoisting function

Abstract

The utility model discloses a movable aerial work platform structure with a self-hoisting function, which relates to the technical field of aerial work, and comprises a chassis, a lifting mechanism, a lifting mechanism and a lifting mechanism, the rotary table is rotationally arranged on the chassis; one end of the arm frame is connected with the rotary table, and the arm frame performs variable-amplitude lifting motion relative to the rotary table; the working platform is arranged at the other end of the arm frame; and the hoisting device is used for hoisting heavy objects, and the hoisting device is detachably arranged on the working platform. The device is a high-altitude operation device which is convenient for hoisting and unloading a heavy object from a working platform.

Description

Technical Field

[0001] The utility model relates to the technical field of aerial work, and more specifically, to a mobile aerial work platform structure with a self-hoisting function. Background Art

[0002] In the prior art, an aerial work platform is a movable aerial work product that transports personnel, tools, and materials to a designated position for work, and is used for aerial work, equipment installation, and maintenance. Currently, the rated load of industry products covers more than two hundred kilograms to more than one ton. When the aerial work platform loads materials or large tools with a relatively heavy single body, it needs to be lifted into the work platform by means of an external hoisting device before it can be transported. This process requires the cooperation of the aerial work platform device and the external hoisting device, resulting in a large space occupied by the operating devices and relatively cumbersome operation.

[0003] In summary, how to provide an aerial work device that facilitates the hoisting and unloading of heavy objects from the work platform is an urgent problem to be solved by those skilled in the art at present. Summary of the Utility Model

[0004] In view of this, the purpose of the utility model is to provide a mobile aerial work platform structure with a self-hoisting function, which is an aerial work device that facilitates the hoisting and unloading of heavy objects from the work platform.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A mobile aerial work platform structure with a self-hoisting function, comprising:

[0007] A chassis, which is used to realize the walking action;

[0008] A turntable, which is rotatably arranged on the chassis;

[0009] A boom, one end of which is connected to the turntable, and the boom performs amplitude-changing and lifting movements relative to the turntable;

[0010] A work platform, which is arranged at the other end of the boom;

[0011] A hoisting device, which is used to hoist heavy objects, and the hoisting device is detachably arranged on the work platform.

[0012] In one embodiment, a support rod seat is arranged on the work platform, and the hoisting device includes a vertical rod arranged on the support rod seat, a horizontal rod arranged on the vertical rod, an electric hoist arranged on the vertical rod, a fixed pulley, a steel wire rope, and a hook;

[0013] Both ends of the cross bar are provided with the fixed pulleys. One end of the steel wire rope is wound around the electric hoist, the other end of the steel wire rope bypasses the fixed pulley and hangs downward, and a hook is provided at the hanging end of the steel wire rope.

[0014] In one embodiment, a diagonal brace is provided between the vertical pole and the cross bar.

[0015] In one embodiment, the electric hoist is equipped with a lifting weight limiter.

[0016] In one embodiment, the length of the cross bar is 1.2 meters - 1.6 meters, and the length of the vertical pole is 1.6 meters - 2.2 meters.

[0017] In one embodiment, a bearing is provided in the support rod seat, the vertical pole is inserted into the bearing, the vertical pole rotates relative to the support rod seat, locking holes are provided through the sides of the support rod seat and the bearing, and a locking member for abutting against the side of the vertical pole is provided in the locking holes.

[0018] In one embodiment, the total weight of the lifting device is 40 kg - 60 kg.

[0019] In one embodiment, the lifting device is located on the side of the working platform away from the boom.

[0020] When using the structure of the mobile aerial work platform with self-lifting function provided by the present utility model, when it is necessary to transport heavy objects, the lifting device can be installed on the working platform. By controlling the rotation of the turntable, the boom and the working platform can be rotated to the required orientation. Then, by controlling the amplitude and lifting movement of the boom relative to the turntable, the working platform can be lifted to the required height. Finally, the operator standing on the working platform can hook the heavy object to be transported and the lifting device to realize the lifting and transportation operation of the heavy object. In addition, after the heavy object is transported to the required position, the operator can release the hooking relationship between the heavy object and the lifting device to realize the unloading operation of the heavy object.

[0021] By using this device, the mobile aerial work platform can be equipped with a self-lifting function, without the need to rely on external lifting equipment, making the device structure more compact, occupying relatively less space, and the operation is coherent and simple. Moreover, the operator can operate this device while standing on the working platform to realize operations such as lifting and transporting heavy objects and unloading heavy objects to the required height, greatly improving the use convenience and scenario applicability of the mobile aerial work platform.

[0022] In summary, the structure of the mobile aerial work platform with self-lifting function provided by the present utility model is an aerial work device that is convenient for lifting and unloading heavy objects from the working platform. Description of the Drawings

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the provided drawings.

[0024] Figure 1 FIG. 4 is a schematic structural diagram of the mobile aerial work platform structure with self-hoisting function provided by the present invention without the hoisting device installed;

[0025] Figure 2 FIG. 5 is a schematic structural diagram of the hoisting device and the work platform.

[0026] Reference numerals:

[0027] 1 - chassis; 2 - turntable; 3 - boom; 4 - work platform; 5 - cross bar; 6 - vertical pole; 7 - diagonal brace; 8 - support base; 9 - electric hoist; 10 - hoisting device; 11 - steel wire rope; 12 - hook. Detailed implementation manners

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0029] The core of the present invention is to provide a mobile aerial work platform structure with self-hoisting function, which is an aerial work device convenient for hoisting and unloading heavy objects from the work platform.

[0030] Please refer to Figure 2 , Figure 2 which has no reference numerals.

[0031] This specific embodiment provides a mobile aerial work platform structure with self-hoisting function, including:

[0032] A chassis 1, which is used to realize the walking action;

[0033] A turntable 2, which is rotatably arranged on the chassis 1;

[0034] A boom 3, one end of which is connected to the turntable 2, and the boom 3 performs amplitude-changing and lifting movements relative to the turntable 2;

[0035] A work platform 4, which is arranged at the other end of the boom 3;

[0036] Lifting device 10, which is used to lift heavy objects, and the lifting device 10 is detachably provided on the working platform 4.

[0037] It should be noted that the luffing and lifting movement of the boom 3 relative to the turntable 2 may refer to setting the fixed end of the lifting cylinder on the turntable 2, and the lifting end of the lifting cylinder is connected to the boom 3 to realize the lifting operation of the boom 3. The chassis 1, turntable 2, boom 3 and working platform 4 of the present application are similar in structure to the existing mobile aerial work platform. Of course, in the actual application process, according to the actual situation and actual needs, the shapes, structures, materials, positions, etc. of the chassis 1, turntable 2, boom 3, working platform 4 and lifting device 10 can be determined.

[0038] When using the structure of the mobile aerial work platform with self-lifting function provided by the present utility model, when it is necessary to transport heavy objects, the lifting device 10 can be installed on the working platform 4. By controlling the rotation of the turntable 2, the boom 3 and the working platform 4 can be rotated to the required orientation. Then, by controlling the luffing and lifting movement of the boom 3 relative to the turntable 2, the working platform 4 can be lifted to the required height. Finally, the operator standing on the working platform 4 can hook the heavy object to be transported and the lifting device 10 to realize the lifting and transportation operation of the heavy object. In addition, after the heavy object is transported to the required position, the operator can release the hooking relationship between the heavy object and the lifting device 10 to realize the unloading operation of the heavy object.

[0039] By using this device, the mobile aerial work platform can be made to have a self-lifting function, without the need to rely on external lifting equipment, making the device structure more compact, occupying relatively less space, and the operation is continuous and simple. Moreover, the operator can operate this device while standing on the working platform 4 to realize operations such as lifting and transporting heavy objects and unloading heavy objects to the required height, greatly improving the use convenience and scene applicability of the mobile aerial work platform.

[0040] In summary, the structure of the mobile aerial work platform with self-lifting function provided by the present utility model is an aerial work device that is convenient for lifting and unloading heavy objects from the working platform.

[0041] In one embodiment, as Figure 2 shown, a support rod seat 8 is provided on the working platform 4. The lifting device 10 includes a vertical rod 6 provided on the support rod seat 8, a horizontal rod 5 provided on the vertical rod 6, an electric hoist 9 provided on the vertical rod 6, a fixed pulley, a steel wire rope 11 and a hook 12; fixed pulleys are provided at both ends of the horizontal rod 5, one end of the steel wire rope 11 is wound around the electric hoist 9, the other end of the steel wire rope 11 bypasses the fixed pulley and hangs downward, and a hook 12 is provided at the hanging end of the steel wire rope 11.

[0042] That is, the cross bar 5 and the vertical rod 6 can form a fixed inverted L-shaped bracket. Moreover, an electric hoist 9 can be installed on the vertical rod 6. The steel wire rope 11 and the hook 12 led out by the electric hoist 9 pass through a fixed pulley and are led out from the cross bar 5. The bottom end of the vertical rod 6 is inserted into the support rod base 8, and the vertical rod 6 and the support rod base 8 are detachably connected. Therefore, when lifting a heavy object, components such as the vertical rod 6 can be inserted onto the support rod base 8. When there is no need to lift a heavy object, the vertical rod 6 and the support rod base 8 can be separated to make the load of the working platform 4 lighter.

[0043] In one embodiment, a diagonal brace 7 is provided between the vertical rod 6 and the cross bar 5. The diagonal brace 7 is used to strengthen the structural stability of the vertical rod 6 and the cross bar 5, making the structure of the inverted L-shaped bracket more reliable. Moreover, the vertical rod 6, the cross bar 5, and the diagonal brace 7 can all be set as steel pipes, and the vertical rod 6, the cross bar 5, and the diagonal brace 7 are set as an integral structure by welding to ensure that the inverted L-shaped bracket does not fall apart or separate during use.

[0044] In one embodiment, the electric hoist 9 is equipped with a lifting weight limiter to prevent the heavy object from exceeding the maximum set load allowed for lifting, which helps to improve the safety of the lifting operation of the device.

[0045] In one embodiment, the length of the cross bar 5 is 1.2 meters - 1.6 meters, and the length of the vertical rod 6 is 1.6 meters - 2.2 meters. For example, the length of the cross bar 5 can be set to 1.5 meters, and the length of the vertical rod 6 can be set to 2 meters. The heavy object is hooked on the hook 12. At this time, the actual height of the heavy object relative to the working platform 4 is less than 2 meters, and the height difference between the heavy object and the working platform 4 is about 1.5 meters - 1.7 meters. At this time, the operator standing on the working platform 4 can easily grasp the heavy object and then hook or unhook the heavy object and the hook 12.

[0046] In one embodiment, a bearing is provided in the support rod base 8. The vertical rod 6 is inserted into the bearing, and the vertical rod 6 rotates relative to the support rod base 8. Locking holes are provided through the side parts of the support rod base 8 and the bearing, and locking pieces for pressing against the side part of the vertical rod 6 are provided in the locking holes. That is, the vertical rod 6 of the inverted L-shaped bracket can be inserted into the support rod base 8, and then, the operator manually rotates the vertical rod 6 by 360° to make the vertical rod 6 rotate flexibly to ensure that the heavy object or the hook 12 rotates to the required position. After the rotation position of the vertical rod 6 is determined, the locking piece can be inserted into the locking hole to lock the vertical rod 6 and prevent the vertical rod 6 from continuing to rotate and affecting the lifting or unloading operation of the heavy object.

[0047] In one embodiment, the total weight of the lifting device 10 is 40 kg - 60 kg.

[0048] It should be noted that the specifications of this device are selected according to different load requirements. For example, the weight of an electric hoist for lifting a 500 kg heavy object is about 20 kg. Estimating based on a crossbar 5 with a length of 1.5 meters and a vertical rod 6 with a length of 2 meters, the total weight of the lifting device 10 is about 50 kg. The lifting device 10 will add a preloading load of about 10% to the working platform 4. When there is no need to carry heavy objects, components such as the vertical rod 6 can be separated from the support rod base 8, and only the support rod base 8 is retained to reduce the load borne by the working platform 4.

[0049] In one embodiment, the lifting device 10 is located on the side of the working platform 4 away from the boom 3. In this position, the force-bearing fulcrum of the lifting device 10 is set in the worst position, that is, the position where it is most likely to tip over when lifting heavy objects. If the lifting device 10 can still be lifted smoothly in this worst position, it will effectively prevent the tipping phenomenon from occurring when the heavy object is unloaded beyond the tipping moment, which helps to improve the safety performance of the device.

[0050] By using this device, the mobile aerial work platform can be equipped with a self-lifting function without the need to rely on external lifting equipment. The operator on the working platform 4 can operate this equipment to lift and unload heavy objects to the required height for operation, greatly improving the usability and scenario applicability of the mobile aerial work platform. Moreover, the lifting device 10 of this device has a simple and light structure, does not occupy the space of the working platform 4, does not increase too much load, and is easy to disassemble and assemble. In addition, the structure of the mobile aerial work platform with the self-lifting function can be widely applied to various forms of mobile aerial work platforms.

[0051] In addition, it should be noted that the orientation or positional relationship indicated by "horizontal", "vertical", etc. in the present invention is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of simplified description and understanding, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it should not be construed as a limitation of the present invention.

[0052] Each embodiment in this specification is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other. Any combination of all the embodiments provided by the present invention is within the protection scope of this invention, and will not be elaborated here.

[0053] The above has introduced in detail the structure of the mobile aerial work platform with self-lifting function provided by the present utility model. Specific examples are used in this article to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and modifications can be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. A mobile aerial work platform structure with a self-hoisting function, characterized in that include: A chassis (1) for implementing a walking action; A turntable (2) rotatably mounted on the chassis (1); A boom (3), one end of which is connected to the turntable (2), and the boom (3) is capable of variable amplitude lifting and lowering movements relative to the turntable (2); A working platform (4) disposed at the other end of the arm (3); A lifting device (10) is used for lifting heavy objects, and the working platform (4) is detachably provided with the lifting device (10).

2. The structure of the mobile aerial work platform with self-hoisting function according to claim 1, characterized in that, The working platform (4) is provided with a support rod seat (8), and the lifting device (10) comprises a vertical rod (6) arranged on the support rod seat (8), a horizontal rod (5) arranged on the vertical rod (6), an electric hoist (9) arranged on the vertical rod (6), a fixed pulley, a steel wire rope (11) and a hook (12); The fixed pulleys are provided at both ends of the crossbar (5), one end of the steel wire rope (11) is wound around the electric hoist (9), the other end of the steel wire rope (11) is wound around the fixed pulley and is suspended downward, and the hanging end of the steel wire rope (11) is provided with the hook (12).

3. The structure of the mobile aerial work platform with self-hoisting function according to claim 2, characterized in that, An oblique support rod (7) is provided between the vertical rod (6) and the horizontal rod (5).

4. The structure of the mobile aerial work platform with self-hoisting function according to claim 2, characterized in that, The electric hoist (9) is equipped with a lifting weight limiter.

5. The structure of the mobile aerial work platform with self-hoisting function according to any one of claims 2 to 4, characterized in that, The length of the crossbar (5) is 1.2 meters to 1.6 meters, and the length of the vertical bar (6) is 1.6 meters to 2.2 meters.

6. The structure of the mobile aerial work platform with self-hoisting function according to any one of claims 2 to 4, characterized in that, A bearing is provided in the support rod seat (8), the vertical rod (6) is inserted into the bearing, the vertical rod (6) rotates relative to the support rod seat (8), and locking holes are provided through the sides of the support rod seat (8) and the bearing, and a locking piece for supporting the side of the vertical rod (6) is provided in the locking hole.

7. The structure of the mobile aerial work platform with self-hoisting function according to any one of claims 1 to 4, characterized in that, The total weight of the lifting device (10) is 40kg-60kg.

8. The structure of the mobile aerial work platform with self-hoisting function according to any one of claims 1 to 4, characterized in that, The hoisting device (10) is located on a side of the working platform (4) away from the boom (3).

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