Lifting and lowering vehicle

Abstract

The application relates to a lifting operation vehicle which can be applied to the field of financial technology or other related fields. The lifting operation vehicle comprises a base, a bearing table and a lifting assembly connected between the base and the bearing table; the lifting assembly comprises a screw telescopic piece and a driving piece, two ends of the screw telescopic piece are connected to the base and the bearing table respectively, and the screw telescopic piece is used for stretching and retracting along a screw track under the driving of the driving piece so as to drive the bearing table to lift relative to the base. The lifting operation vehicle has good lifting reliability and high safety.

Description

Technical Field

[0001] This invention relates to the field of electronic equipment maintenance technology, and in particular to a lifting operation vehicle. Background Technology

[0002] Data centers are buildings used to centrally store and operate computer equipment. Individual electronic devices in data centers are heavy and installed at high positions. Routine maintenance of this equipment often requires manual handling using hydraulic trolleys. Specifically, existing hydraulic trolleys typically consist of a base, a scissor lift mechanism, and a lifting platform. The two ends of the scissor lift mechanism are connected to the base and the lifting platform, respectively. During operation, a hydraulic unit drives the scissor lift mechanism to raise and lower the lifting platform, thereby moving items on the platform. However, this type of hydraulic trolley suffers from poor lifting reliability, which can threaten the safety of operators. Summary of the Invention

[0003] Therefore, it is necessary to provide a lifting operation vehicle with better lifting reliability and higher safety.

[0004] This application provides a lifting operation vehicle, including a base, a support platform, and a lifting assembly connected between the base and the support platform;

[0005] The lifting assembly includes a spiral telescopic component and a driving component. The two ends of the spiral telescopic component are connected to the base and the support platform, respectively. The spiral telescopic component is used to extend and retract along a spiral trajectory under the drive of the driving component, so as to drive the support platform to rise and fall relative to the base.

[0006] In one embodiment, the spiral telescopic component includes a first spiral telescopic rod and a second spiral telescopic rod, which twist relative to each other to form a double spiral structure. One end of the first spiral telescopic rod and the second spiral telescopic rod are connected to the base in the longitudinal direction, and the other end is connected to the support platform.

[0007] The driving component includes multiple crossbars and multiple driving rods. Each crossbar is connected to a first spiral telescopic rod and a second spiral telescopic rod at both ends. A driving rod is connected between each pair of adjacent crossbars. The driving rods are configured to drive the two adjacent crossbars to move away from or towards each other, so as to drive the first spiral telescopic rod and the second spiral telescopic rod to extend and retract synchronously along the double spiral trajectory.

[0008] In one embodiment, both the first and second spiral telescopic rods include at least two telescopic groups connected in sequence, each telescopic group including at least two telescopic segments, adjacent telescopic segments being configured to slide relative to each other so that the first and second spiral telescopic rods can extend and retract along a double spiral trajectory, and a crossbar connecting the corresponding two telescopic groups in the first and second spiral telescopic rods.

[0009] In one embodiment, the side closer to the base is defined as the upstream side, and the side closer to the support platform is defined as the downstream side;

[0010] Each telescopic section has an internal accommodating cavity. In any two adjacent telescopic sections of the same telescopic group, at least a portion of the structure of the downstream telescopic section can be inserted into the accommodating cavity of the upstream telescopic section.

[0011] In one embodiment, the drive rod is a hydraulic drive rod.

[0012] In one embodiment, the lifting operation vehicle further includes a positioning belt, and the top of the support platform is provided with positioning grooves and connecting parts arranged at intervals. One end of the positioning belt is connected to the connecting part, and the other end is connected to the positioning groove.

[0013] The positioning slot is equipped with a tightening button, which is configured to tighten the positioning belt to the surface of the item placed on the support platform.

[0014] In one embodiment, the base is provided with two sets of track wheels on the side opposite to the lifting assembly, and the two sets of track wheels are spaced apart.

[0015] The base also features foldable steering wheels on the side opposite the lifting assembly. This makes the lifting vehicle suitable for more scenarios, such as uneven ground or conditions with steps, making the transportation process smoother and more convenient.

[0016] In one embodiment, the lifting trolley further includes a controller and a power supply. The controller is electrically connected to the drive unit and the power supply, and is used to control the start and stop of the drive unit. By controlling the drive unit through the controller, the lifting assembly can be automatically raised and lowered. Unlike the prior art, which requires manual pressing of the operating handle to achieve raising and lowering, and where the smoothness and speed of raising and lowering depend entirely on the operator's experience and skill, the lifting trolley of this embodiment makes the speed of raising and lowering items slower and smoother, and the height of raising and lowering items can be controlled more precisely.

[0017] In one embodiment, the lifting vehicle also includes a motor, which is electrically connected to a controller and drively connected to the track wheels. The controller drives the motor to move the track wheels. This enables the automatic operation of the lifting vehicle.

[0018] In one embodiment, the lifting vehicle further includes a braking unit connected to the track wheels and used to brake the track wheels. This facilitates operator control of the lifting vehicle.

[0019] The beneficial effects of the above-mentioned lifting operation vehicle are:

[0020] The spiral telescopic component is connected to the base and the support platform at both ends. Driven by the drive component, the spiral telescopic component extends and retracts along a spiral trajectory, thereby raising and lowering the support platform relative to the base. Because the spiral telescopic component's lifting trajectory is spiral-shaped, it achieves a higher lifting height for the loaded item compared to the stacked scissor structure method in existing technologies. Furthermore, the smoothness and speed of lifting are better, resulting in higher reliability. Additionally, since the spiral telescopic component's movement trajectory is spiral, it occupies less space, making it more suitable for operation in confined spaces. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the lifting operation vehicle provided in the embodiments of this application;

[0022] Figure 2 This is a schematic diagram of the lifting assembly in the lifting operation vehicle provided in the embodiments of this application;

[0023] Figure 3 This is a schematic diagram of the telescopic section in the lifting operation vehicle provided in the embodiments of this application.

[0024] Explanation of icon numbers:

[0025] 100. Lifting operation vehicle; 10. Base; 20. Support platform;

[0026] 30. Lifting assembly; 31. Helical telescopic component; 311. First helical telescopic rod; 312. Second helical telescopic rod; 32. Driving component; 33. Crossbar; 34. Driving rod; 35. Telescopic assembly; 351. Telescopic section;

[0027] 40. Positioning belt; 41. Positioning groove; 42. Connecting part; 43. Item;

[0028] 50. Track rollers; 51. Power supply; 52. Motor; 53. Push handle;

[0029] S, upstream side; X, downstream side; R, accommodating cavity. Detailed Implementation

[0030] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, 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 invention.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0033] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0034] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0035] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0036] Figure 1 This is a structural schematic diagram of the lifting operation vehicle provided in the embodiments of this application. Figure 2 This is a schematic diagram of the structure of the lifting component 30 in the lifting operation vehicle provided in the embodiment of this application.

[0037] The following description, in conjunction with the accompanying drawings, illustrates an embodiment of the lifting operation vehicle of this application. It should be noted that this application uses the lifting operation vehicle in the daily maintenance of a data center, specifically for mounting and dismounting various electronic devices, as an example. Of course, this application is not limited to this and can be applied to other scenarios. The application in other scenarios is similar, and will not be elaborated upon here.

[0038] Reference Figure 1 , Figure 2 The lifting operation vehicle 100 of this application embodiment includes a base 10, a support platform 20, and a lifting assembly 30 connected between the base 10 and the support platform 20. The lifting assembly 30 includes a spiral telescopic member 31 and a driving member 32. The two ends of the spiral telescopic member 31 are respectively connected to the base 10 and the support platform 20. The spiral telescopic member 31 is used to extend and retract along a spiral trajectory under the drive of the driving member 32, so as to drive the support platform 20 to rise and fall relative to the base 10.

[0039] The spiral telescopic component 31 is connected to the base 10 and the support platform 20 at both ends. Driven by the drive component 32, the spiral telescopic component 31 extends and retracts along a spiral trajectory, thereby raising and lowering the support platform 20 relative to the base 10. Because the spiral telescopic component 31 moves along a spiral trajectory, it achieves a higher lifting height for the loaded item 43 compared to the stacked scissor structure method in existing technologies. Furthermore, the smoothness and speed of the lifting process are better, resulting in higher reliability. Additionally, because the spiral telescopic component 31 moves along a spiral trajectory, the entire lifting vehicle occupies less space, making it more suitable for operation in confined spaces.

[0040] Furthermore, referring to Figure 2The helical telescopic component 31 includes a first helical telescopic rod 311 and a second helical telescopic rod 312, which twist relative to each other to form a double helix structure. The double helix structure is, for example, the helical structure of DNA. With this structure, the support platform 20 is more stable and does not wobble when the first helical telescopic rod 311 and the second helical telescopic rod 312 run along the helical trajectory. Of course, the lengths of the first helical telescopic rod 311 and the second helical telescopic rod 312 must be equal.

[0041] The first helical telescopic rod 311 and the second helical telescopic rod 312 are connected at one end to the base 10 and at the other end to the support platform 20 along their length, thus achieving connection with the base 10 and the support platform 20. This connection can be achieved, for example, by welding. Alternatively, in some embodiments, the connection between the first helical telescopic rod 311 and the second helical telescopic rod 312 and the base 10 and the support platform 20 can be a detachable connection using fasteners or the like, facilitating maintenance and replacement.

[0042] The driving component 32 includes multiple crossbars 33 and multiple driving rods 34. Each crossbar 33 is connected at both ends to the first spiral telescopic rod 311 and the second spiral telescopic rod 312, respectively. A driving rod 34 is connected between each pair of adjacent crossbars 33. The driving rods 34 are configured to drive the two adjacent crossbars 33 to move away from or towards each other, so as to drive the first spiral telescopic rod 311 and the second spiral telescopic rod 312 to extend and retract synchronously along the double spiral trajectory.

[0043] The drive rod 34 can be positioned perpendicular to the crossbar 33 so that it can better drive the crossbar 33 to move through its extension and retraction. The relative positions of the crossbars 33 can be, for example, at an angle when viewed from above, meaning that the crossbars 33 can rotate gradually along the helical trajectory.

[0044] It should be noted that the first spiral telescopic rod 311 and the second spiral telescopic rod 312 can both be integral structures. In order to achieve telescopic movement along the spiral trajectory, the first spiral telescopic rod 311 and the second spiral telescopic rod 312 are made of elastic materials. When the crossbar 33 is driven, the first spiral telescopic rod 311 and the second spiral telescopic rod 312 can be elastically deformed along the aforementioned spiral trajectory.

[0045] Alternatively, as another possible implementation, refer to Figure 2 and Figure 3The first spiral telescopic rod 311 and the second spiral telescopic rod 312 each include at least two telescopic groups 35 connected in sequence. Each telescopic group 35 includes at least two telescopic segments 351. Adjacent telescopic segments 351 are configured to slide relative to each other so that the first spiral telescopic rod 311 and the second spiral telescopic rod 312 can extend and retract along a double spiral trajectory. In the first spiral telescopic rod 311 and the second spiral telescopic rod 312, a crossbar 33 is connected between corresponding two telescopic groups 35.

[0046] For example, a telescopic assembly 35 may include at least two telescopic segments 351, and the telescopic segments 351 included in each telescopic assembly 35 can slide relative to each other to realize the extension and retraction of the telescopic segment 351. Specifically, in the first helical telescopic rod 311 and the second helical telescopic rod 312, the extension and retraction of each telescopic assembly 35 corresponds to the extension and retraction of the entire first helical telescopic rod 311 and the second helical telescopic rod 312. A crossbar 33 may be connected between the corresponding telescopic assemblies 35.

[0047] For example, refer to Figure 2 , Figure 3 As shown, the first spiral telescopic rod 311 includes ten telescopic groups 35, and each telescopic group 35 includes three telescopic segments. The second spiral telescopic rod 312 also includes ten telescopic groups 35, and each telescopic group 35 includes three telescopic segments. The telescopic groups 35 in the first spiral telescopic rod 311 and the telescopic groups 35 in the second spiral telescopic rod 312 have a one-to-one correspondence. Of course, this application is not limited to this. The number of telescopic groups 35 included in the first spiral telescopic rod 311 and the second spiral telescopic rod 312 can also be set according to actual needs, and the number of telescopic segments 351 included in each telescopic group 35 can also be set according to actual needs. The same applies to other cases, which will not be elaborated here.

[0048] Furthermore, referring to Figure 3 The side closer to the base 10 is defined as the upstream side S, and the side closer to the support platform 20 is defined as the downstream side X.

[0049] Each telescopic section 351 has a accommodating cavity R inside. In any two adjacent telescopic sections 351 of the same telescopic group 35, at least a portion of the structure of the downstream X telescopic section 351 can be inserted into the accommodating cavity R of the upstream S telescopic section 351.

[0050] Thus, when the telescopic section 351 located on the downstream side X retracts into the telescopic section 351 located on the upstream side S, the length of the telescopic assembly 35 becomes shorter. As long as the length of at least part of the telescopic assembly 35 becomes shorter, it can cause the first spiral telescopic rod 311 and the second spiral telescopic rod 312 to shorten, thereby lowering the support platform 20.

[0051] Similarly, when the telescopic section 351 located on the downstream side X extends relative to the telescopic section 351 located on the upstream side S, the length of the telescopic assembly 35 increases. As long as at least part of the telescopic assembly 35 increases in length, it can cause the first helical telescopic rod 311 and the second helical telescopic rod 312 to extend, thereby raising the support platform 20.

[0052] Of course, only some of the drive rods 34 can be driven, allowing for partial extension and retraction of the first helical telescopic rod 311 and the second helical telescopic rod 312. This enables flexible adjustment of the height of the support platform 20 according to different usage requirements, thus broadening the applicability of the lifting operation vehicle 100 in this embodiment. It should be noted that to ensure the stability of the support platform 20, all drive rods 34 can be driven synchronously.

[0053] In this embodiment, the drive rod 34 is a hydraulic drive rod. Alternatively, it can be other linear drive mechanisms, such as pneumatic drive rods, linear motors, etc.

[0054] Furthermore, continue to refer to Figure 1 The lifting platform 100 also includes a positioning belt 40. The top of the support platform 20 has a bearing surface for carrying items. The top of the support platform 20 has positioning grooves 41 and connecting parts 42 arranged at intervals. One end of the positioning belt 40 is connected to the connecting part 42, and the other end is connected to the positioning groove 41. The positioning belt 40 is used for temporary positioning of items 43 on the support platform 20. The positioning grooves 41 and connecting parts 42 can be respectively located at two ends of the bearing surface to avoid affecting the bearing capacity of the items 43.

[0055] The number of positioning belts 40 can be multiple, for example, two can be provided in the forward direction of the lifting operation vehicle 100, so as to position the items at different positions.

[0056] The positioning slot 41 is provided with a tightening button and a loosening button (not shown). The tightening button is configured to tighten the positioning strap 40 to the surface of the article 43 placed on the support platform 20. The loosening button is configured to loosen the positioning strap 40 when pressed.

[0057] Thus, in actual use, when the item 43 is placed on the carrier platform 20 and needs to be transported, press the tighten button, and the positioning belt 40 will tighten to secure the item 43. When the positioning belt 40 senses a certain pressure, it will maintain the contracted state. When the item 43 is unloaded, simply press the release button to loosen the positioning belt 40 to a certain length, making it easier for the operator to remove the item 43.

[0058] In this embodiment, reference is continued. Figure 1The base 10 is provided with at least two sets of track wheels 50 on the side opposite to the lifting assembly 30. The at least two sets of track wheels 50 are spaced apart. The base 10 is also provided with foldable steering wheels (not shown) on the side opposite to the lifting assembly 30.

[0059] Considering the heavy objects being moved by the lifting platform 100, traditional hydraulic lifting vehicles often cause irreparable deformation of the floor when moving heavy objects. Furthermore, the lifting process is quite strenuous on surfaces with steps or significant bumps. In this embodiment, the lifting platform 100 uses tracked wheels 50 to increase the contact area with the floor, thereby distributing the pressure between the lifting platform 100 and the floor and protecting the floor. This embodiment uses two sets of tracked wheels 50 as an example; however, this application is not limited to this, and the length and number of sets of tracked wheels 50 can be set to other values ​​according to actual needs.

[0060] In addition, in areas with steps or uneven surfaces, the tracked wheels 50 are still more adaptable than traditional wheels, allowing for smoother transport of heavy objects. Furthermore, to facilitate the turning of the lifting operation vehicle 100, in addition to the tracked wheels 50, a set of steering wheels (not shown) that can turn on the spot can be installed at the bottom of the lifting operation vehicle 100. In this case, the tracked wheels 50 only serve as driven wheels to assist in turning.

[0061] Additionally, to ensure smooth and precise braking of the lifting vehicle 100, a hydraulic brake unit (not shown) can be added to the track wheels 50 of the lifting vehicle 100. This brake unit is connected to the track wheels 50 and is used to brake them. This allows the operator to stop the lifting vehicle 100 at any time as needed. Of course, it is understandable that the lifting vehicle 100 can also be equipped with a locking component. This locking component can be connected to the track wheels 50 and can temporarily lock the track wheels 50 when the lifting vehicle needs to remain stationary, facilitating the operator's handling of items on the platform 20.

[0062] Furthermore, the lifting operation vehicle may also include a pusher 53 to facilitate the operator to push the lifting operation vehicle 100 when necessary.

[0063] In this embodiment, the lifting vehicle 100 further includes a controller (not shown) and a power supply 51. The controller is electrically connected to the drive unit 32 and the power supply 51, and the controller is used to control the start and stop of the drive unit 32. The power supply 51 may be, for example, a power battery, which can be repeatedly charged and used.

[0064] Furthermore, the lifting operation vehicle 100 also includes a motor 52, which is electrically connected to a controller and drively connected to the track wheels 50. The controller is used to drive the motor 52 to move the track wheels 50. That is, the motor 52 is the driving source for the lifting operation vehicle 100 to move between different positions.

[0065] In this embodiment, the drive unit 32 can be controlled by the controller to realize the automatic lifting of the lifting component 30. This is different from the prior art where the lifting is achieved by manually pressing the operating handle, and the smoothness and speed of the lifting depend entirely on the operator's experience and skill.

[0066] The lifting vehicle 100 of this application embodiment can make the speed of the item 43 rising and falling more slow and smooth, and the height of the item 43 rising and falling can be controlled more precisely, making it more widely applicable.

[0067] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A lifting operation vehicle, characterized in that, Includes a base, a support platform, and a lifting assembly connecting the base and the support platform; The lifting assembly includes a spiral telescopic component and a driving component. The two ends of the spiral telescopic component are respectively connected to the base and the support platform. The spiral telescopic component is used to extend and retract along a spiral trajectory under the drive of the driving component, so as to drive the support platform to rise and fall relative to the base. The spiral telescopic component includes a first spiral telescopic rod and a second spiral telescopic rod, which twist relative to each other to form a double spiral structure. One end of the first spiral telescopic rod and the second spiral telescopic rod are connected to the base, and the other end is connected to the support platform. The driving component includes multiple crossbars and multiple driving rods. Each crossbar is connected to the first spiral telescopic rod and the second spiral telescopic rod at both ends. A driving rod is connected between each pair of adjacent crossbars. The driving rods are configured to drive adjacent crossbars to move away from or towards each other, so as to drive the first spiral telescopic rod and the second spiral telescopic rod to extend and retract synchronously along the trajectory of the double spiral. The first spiral telescopic rod and the second spiral telescopic rod are both integral structures made of elastic material. When the crossbars are driven, they cause the first spiral telescopic rod and the second spiral telescopic rod to elastically deform along the spiral trajectory.

2. The lifting operation vehicle according to claim 1, characterized in that, Both the first and second spiral telescopic rods include at least two telescopic groups connected in sequence. Each telescopic group includes at least two telescopic segments. Adjacent telescopic segments are configured to slide relative to each other so that the first and second spiral telescopic rods can extend and retract along the trajectory of the double spiral. A crossbar connects the corresponding two telescopic groups in the first and second spiral telescopic rods.

3. The lifting operation vehicle according to claim 2, characterized in that, The side closer to the base is defined as the upstream side, and the side closer to the support platform is defined as the downstream side; Each of the telescopic sections has a receiving cavity inside. In any two adjacent telescopic sections of the same telescopic group, at least a portion of the structure of the downstream telescopic section can be inserted into the receiving cavity of the upstream telescopic section.

4. The lifting operation vehicle according to any one of claims 1-3, characterized in that, The drive rod is a hydraulic drive rod.

5. The lifting operation vehicle according to any one of claims 1-3, characterized in that, The lifting operation vehicle also includes a positioning belt. The top of the support platform is provided with positioning slots and connecting parts arranged at intervals. One end of the positioning belt is connected to the connecting part, and the other end is connected to the positioning slot. The positioning groove is provided with a tightening button, which is configured to tighten the positioning band to the surface of the item placed on the support platform.

6. The lifting operation vehicle according to any one of claims 1-3, characterized in that, The base is also provided with two sets of track wheels on the side opposite to the lifting assembly, and the two sets of track wheels are spaced apart. The base is also provided with foldable steering wheels on the side opposite to the lifting assembly.

7. The lifting operation vehicle according to claim 6, characterized in that, The lifting operation vehicle also includes a controller and a power supply. The controller is electrically connected to the drive unit and the power supply, and the controller is used to control the start and stop of the drive unit.

8. The lifting operation vehicle according to claim 7, characterized in that, The lifting vehicle also includes a motor, which is electrically connected to the controller and drively connected to the track wheels. The controller is used to drive the motor to move the track wheels.

9. The lifting operation vehicle according to claim 6, characterized in that, The lifting vehicle also includes a braking unit, which is connected to the track wheel and is used to brake the track wheel.

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