Vehicle-mounted hoisting device and operation method of vehicle-mounted hoisting device

Abstract

The invention relates to the technical field of power grids, in particular to a vehicle-mounted hoisting device and an operation method of the vehicle-mounted hoisting device, the vehicle-mounted hoisting device comprises a supporting piece and a hoisting arm assembly, and the supporting piece comprises a rotating end and a first fixing structure; the lazy arm assembly comprises a lazy arm main body and a second fixing structure, the first end of the lazy arm main body is connected with the rotating end through a rotating pin shaft, and the second fixing structure is arranged on the lazy arm main body; wherein the suspension arm main body can rotate between a working position and a folding storage position relative to the supporting piece by taking the rotating pin shaft as an axis, and the first fixing structure and the second fixing structure are used for butt joint so as to lock the suspension arm main body at the working position. Compared with the prior art, the vehicle-mounted hoisting device provided by the invention can be folded, and the portable effect can be achieved.

Description

Technical Field

[0001] The present application relates to the field of power grid technology, and in particular to a vehicle-mounted hoisting device and an operating method of the vehicle-mounted hoisting device. Background Art

[0002] With the progress of industrialization, lifting devices have appeared in daily production and life. Lifting devices can use mechanical crane arms to lift heavy objects. In the past, the handling tasks that required the cooperation of multiple workers can now be easily completed by a few operators. In order to facilitate movement, vehicle-mounted lifting devices combined with vehicles have appeared. The crane arms of such lifting devices are usually directly fixed on the support seat. The heavy objects lifted by the crane arms can rise and fall with the rise and fall of the support seat and move with the movement of the vehicle. Summary of the invention

[0003] The present application mainly provides a vehicle-mounted lifting device and an operating method of the vehicle-mounted lifting device, and can provide a foldable and portable vehicle-mounted lifting device.

[0004] In order to solve the above technical problems, a technical solution adopted in the present application is: to provide a vehicle-mounted lifting device, the vehicle-mounted lifting device includes a support member and an arm assembly, the support member includes a rotating end and a first fixed structure; the arm assembly includes an arm body and a second fixed structure, the first end of the arm body is connected to the rotating end through a rotating pin, and the second fixed structure is arranged on the arm body; wherein, the arm body can rotate relative to the support member between a working position and a folded storage position with the rotating pin as the axis, and the first fixed structure and the second fixed structure are used for docking to lock the arm body in the working position.

[0005] In a specific embodiment, the first fixing structure includes one of a support rod and a slot, and the second fixing structure includes the other, and one end of the support rod is engaged with the slot to be supported between the support member and the boom body.

[0006] In a specific embodiment, there are multiple slots, and the multiple slots are arranged at different positions. When one end of the support rod is arranged in different slots, the boom body rotates to different working positions relative to the support member.

[0007] In a specific embodiment, the support member includes a support rod, one end of which is fixed to the vehicle, and the other end is provided with the rotating end and the first fixed structure, the first fixed structure includes a clamping member, two of which are provided, the two clamping members are arranged opposite to each other and spaced apart, the clamping member is provided with a first socket, both ends of the rotating pin shaft are connected to the first socket, the first end of the boom body is provided between the two clamping members, the rotating pin shaft passes through the first end of the boom body, the upper ends of the two clamping members are provided with a plurality of spaced-apart slots, and the boom body is rotatably connected to the support rod.

[0008] In a specific embodiment, the boom body includes a first rod body and a second rod body, one end of the first rod body is connected to the rotating end, and the other end is connected to one end of the second rod body, and the second rod body is perpendicular to the first rod body; an avoidance groove is formed between the two clamping parts, and the first socket is arranged at one end of the avoidance groove, and the length of the avoidance groove is less than the length of the first rod body.

[0009] In a specific embodiment, the second rod body includes an inner sleeve rod and an outer sleeve rod, the outer sleeve rod includes a sleeve connection portion, the sleeve connection portion is arranged at one end of the outer sleeve rod, the other end of the outer sleeve rod is connected to the first rod body, and one end of the inner sleeve rod is movably sleeved in the sleeve connection portion; the inner sleeve rod is provided with a second plug hole, and the sleeve connection portion is provided with a plurality of third plug holes, the boom body also includes a first latch, and the plurality of third plug holes are arranged along the extension direction of the outer sleeve rod, and the first latch is used to be inserted into the second plug hole and any one of the third plug holes to lock the inner sleeve rod with the outer sleeve rod.

[0010] In a specific embodiment, the vehicle-mounted lifting device also includes a rigging assembly, the rigging assembly includes a lifting rope and a rope twisting member, the inner sleeve rod is provided with a traction portion at one end away from the sleeve connection portion, the rope twisting member is arranged on the outer sleeve rod, one end of the lifting rope is wound on the rope twisting member, the other end of the lifting rope is mounted on the traction portion, and the other end of the lifting rope is used to pull the object.

[0011] In a specific embodiment, the vehicle-mounted lifting device further includes a controller and a driving member, wherein the controller is connected to the driving member, and the driving member drives the rope-twisting member.

[0012] In a specific embodiment, the second fixed structure is a support rod, which includes a rotating shaft and a third rod body, one end of the third rod body is used to dock with the slot, the rotating shaft is arranged at the other end of the third rod body, and the third rod body can rotate around the rotating shaft.

[0013] In order to solve the above technical problems, another technical solution adopted in the present application is: to provide an operating method of a vehicle-mounted lifting device, using a vehicle-mounted lifting device as described in any of the above specific embodiments, including a boom assembly unfolding step and a boom assembly folding step.

[0014] The beneficial effects of the present application are as follows: Different from the prior art, in the implementation of the present application, a support is used to support the boom assembly and the hoisted object, and the support and the boom body can rotate relative to each other with the rotating pin as the axis. By respectively providing a first fixed structure and a second fixed structure on the support and the boom assembly, when the vehicle-mounted hoisting device is needed, the boom body can be rotated to the working position relative to the support, and the first fixed structure and the second fixed structure can be docked to lock the boom body relative to the support in the working position, so that the vehicle-mounted hoisting device can work normally. When the vehicle-mounted hoisting device is not needed, the first fixed structure and the second fixed structure can be disassembled, so that the boom body can be rotated to the folding and storage position relative to the support, so that the vehicle-mounted hoisting device can be folded and folded, which can improve the usability of the vehicle-mounted hoisting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the implementation modes of the present application, the drawings required for use in the description of the implementation modes will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a structural schematic diagram of the vehicle-mounted lifting device provided by the present application located at a working position;

[0017] Figure 2 It is a structural schematic diagram of the vehicle-mounted lifting device provided by the present application in a folded storage position;

[0018] Figure 3 It is a structural schematic diagram of a vehicle-mounted lifting device provided by the present application at one angle;

[0019] Figure 4 It is a first exploded structural schematic diagram of the vehicle-mounted lifting device provided by the present application;

[0020] Figure 5 is a second exploded structural schematic diagram of the vehicle-mounted lifting device provided by the present application;

[0021] Figure 6 is a schematic cross-sectional structural diagram of the vehicle-mounted lifting device provided by the present application;

[0022] Figure 7 It is a third exploded structural schematic diagram of the vehicle-mounted lifting device provided by the present application;

[0023] Figure 8 It is a flowchart schematically illustrating the operation method of the vehicle-mounted lifting device provided in the present application.

[0024] 1. Vehicle-mounted lifting device; 2. Support member; 21. Support rod; 22. Rotating end; 221. First plug hole; 23. Connecting member; 231. Card slot; 232. Avoidance slot; 3. Boom assembly; 31. Boom body; 32. First rod body; 321. Fourth plug hole; 33. Second rod body; 331. Inner sleeve rod; 332. Second plug hole; 333. Traction part; 334. Outer sleeve rod; 335. Sleeve connection part; 336. Third plug hole; 337. Rigging fixing member; 34. Support rod; 341. Rotating shaft; 342. Third rod body; 4. Rigging assembly; 41. Lifting rope; 42. Rope twisting member; 5. First latch; 6. Rotating pin shaft. DETAILED DESCRIPTION

[0025] The present application is further described in detail below in conjunction with the accompanying drawings and implementation methods. It is particularly noted that the following implementation methods are only used to illustrate the present application, but do not limit the scope of the present application. Similarly, the following implementation methods are only some implementation methods of the present application rather than all implementation methods. All other implementation methods obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0026] The terms "first", "second" and "third" in this application are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first", "second" and "third" can explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "multiple" is at least two, and the manner is such as two, three, etc., unless otherwise clearly and specifically defined. All directional indications in the implementation mode of this application (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. The manner, such as a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0027] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0028] In power construction and operation and maintenance operations, workers often need to carry various heavy repair tools and materials to the site. These tools and materials are often large in size, sometimes weighing more than 50 kg, or even more than 100 kg, which brings great difficulties to transportation and handling. Traditional handling methods mainly rely on manpower, and workers need to spend a lot of time and energy to carry them. Not only is the efficiency low, but long-term load-bearing work also threatens the health of employees. In addition, due to the particularity of tools and materials, some equipment is prone to collisions, falls and other accidents during transportation, which increases the danger of work. Especially in the replacement of key equipment such as pole-mounted voltage transformers and current transformers of 35kV and below, the handling and installation work is even more difficult because the equipment is located at a high position and is not easy to access. Workers need to climb to a high place to operate, not only to ensure their own safety, but also to ensure that the equipment is not damaged, which puts extremely high demands on operating skills and safety protection.

[0029] With the progress of industrialization, lifting devices have appeared in daily production and life, and can naturally be applied to the field of power operations. Lifting devices can use mechanical crane arms to lift heavy objects. In the past, the handling tasks that required the cooperation of multiple workers can now be easily completed by a few operators. In order to facilitate movement, vehicle-mounted lifting devices combined with vehicles have appeared. The crane arms of such lifting devices are usually directly fixed on the support seat. The heavy objects lifted by the crane arms can rise and fall with the rise and fall of the support seat and move with the movement of the vehicle.

[0030] The common lifting devices currently have a relatively simple structure, and their support base and boom are usually directly fixed, so that the lifting devices will occupy a large space whether in use or idle. When the vehicle moves, the raised boom swings in the air, which not only occupies a large space for movement, but also brings potential safety hazards that cannot be ignored.

[0031] In order to improve or solve the above technical problems, the inventors of the present application have proposed at least the following embodiments after long-term research.

[0032] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 as well as Figure 7 , Figure 1 It is a structural schematic diagram of the vehicle-mounted lifting device provided in the present application located at a working position. Figure 2 It is a structural schematic diagram of the vehicle-mounted lifting device provided in the present application in the folded storage position. Figure 3 It is a structural schematic diagram of a vehicle-mounted lifting device provided in this application at one angle. Figure 4 It is a first exploded structural schematic diagram of the vehicle-mounted lifting device provided in this application. Figure 5 It is a second exploded structural schematic diagram of the vehicle-mounted lifting device provided in this application. Figure 6 It is a schematic cross-sectional structural diagram of the vehicle-mounted lifting device provided in this application. Figure 7 This is a third exploded structural schematic diagram of the vehicle-mounted lifting device provided in this application.

[0033] In order to solve the above technical problems, the present application provides a vehicle-mounted lifting device 1, which may include a support member 2 and a boom assembly 3. The boom assembly 3 is used to lift an object, and the support member 2 is used to support the boom assembly 3 and the object lifted by the boom assembly 3. The support member 2 may include a rotating end 22 and a first fixed structure. The boom assembly 3 may include a boom body 31 and a second fixed structure.

[0034] The first end of the boom body 31 can be connected to the rotating end 22 via a rotating pin 6, and the second fixing structure can be provided on the boom body 31. The boom body 31 can rotate between the working position and the folding storage position relative to the support member 2 with the rotating pin 6 as the axis. The first fixing structure and the second fixing structure are used for docking to lock the boom body 31 in the working position. When the first fixing structure is separated from the second fixing structure, the boom body 31 can rotate to the folding storage position relative to the support member 2 with the rotating pin 6 as the axis.

[0035] Different from the prior art, in the structure provided in this embodiment, the support member 2 is used to support the boom assembly 3 and the hoisted object, and the support member 2 and the boom body 31 can rotate relative to each other with the rotating pin shaft 6 as the axis. By respectively providing the first fixing structure and the second fixing structure on the support member 2 and the boom assembly 3, when the vehicle-mounted hoisting device 1 needs to be used, the boom body 31 can be rotated to the working position relative to the support member 2, and the first fixing structure and the second fixing structure are docked to lock the boom body 31 relative to the support member 2 in the working position, so that the vehicle-mounted hoisting device 1 can work normally. When the vehicle-mounted hoisting device 1 is not needed, the first fixing structure and the second fixing structure can be disassembled, so that the boom body 31 can be rotated to the folding and storage position relative to the support member 2, so that the vehicle-mounted hoisting device 1 can be folded and retracted, which can improve the usability of the vehicle-mounted hoisting device 1.

[0036] Specifically, the end of the arm body 31 connected to the rotating end 22 may be provided with a fourth plug hole 321, and the rotating pin 6 is movably inserted into the first plug hole 221 and the fourth plug hole 321, so as to plug and connect the first plug hole 221 with the fourth plug hole 321. The arm body 31 and the support member 2 can be flexibly rotated relative to each other while being connected by the rotating pin.

[0037] In a specific embodiment, the first fixing structure may include one of the support rod 34 and the slot 231, and the second fixing structure may include the other of the support rod 34 and the slot 231. One end of the support rod 34 can be engaged with the slot 231, so as to be supported between the support member 2 and the boom body 31.

[0038] In the structure provided in this embodiment, the support rod 34 is detachably supported between the support member 2 and the arm body 31 through the snap-fitting relationship between the support rod 34 and the snap-fitting groove 231. When the vehicle-mounted lifting device 1 needs to be used, the arm body 31 is rotated to the working position relative to the support member 2, and the first fixing structure and the second fixing structure are docked to lock the arm body 31 relative to the support member 2 in the working position, so that the vehicle-mounted lifting device 1 can work normally. When the vehicle-mounted lifting device 1 is not needed, the first fixing structure and the second fixing structure can be disassembled, so that the arm body 31 is rotated to the folding and storage position relative to the support member 2, and the vehicle-mounted lifting device 1 can be folded and retracted, which can improve the usability of the vehicle-mounted lifting device 1.

[0039] Optionally, both the first fixing structure and the second fixing structure may include a slot 231 , and one of the first fixing structure and the second fixing structure includes a support rod 34 , and the support rod 34 is detachably supported in the slot 231 on the support member 2 and the boom body 31 .

[0040] Furthermore, in the case where both the first fixing structure and the second fixing structure include the slot 231 , the support rod 34 can be directly removed from the slot 231 on the support member 2 and the boom body 31 , thereby no longer supporting the support member 2 and the boom body 31 .

[0041] In a specific embodiment, the number of the slots 231 can be multiple, and the multiple slots 231 are set at different positions. When one end of the support rod 34 is set in different slots 231, the arm body 31 rotates to different working positions relative to the support member 2. Through the structure provided in this embodiment, the arm body 31 can be controlled to rotate to different positions relative to the support member 2, so as to adapt to different lifting requirements and improve the versatility of the vehicle-mounted lifting device 1.

[0042] Optionally, there may be multiple support rods 34 , and multiple support rods 34 may be connected to the slots 231 at different positions to improve the stability of locking the boom body 31 in the working position.

[0043] In a specific embodiment, the support member 2 includes a support rod 21, one end of which is fixed to the vehicle, and the other end is provided with a rotating end 22 and a first fixing structure. The first fixing structure may specifically include a clamping member 23, and two clamping members 23 may be provided, and the two clamping members 23 are arranged opposite to each other at intervals. The clamping member 23 is provided with a first plug hole 221, and the two ends of the rotating pin 6 are connected to the first plug hole 221. The first end of the boom body 31 is arranged between the two clamping members 23, and the rotating pin 6 passes through the first end of the boom body 31. The upper ends of the two clamping members 23 are provided with a plurality of slots 231 arranged at intervals, and the boom body 31 is rotatably connected with a support rod 34.

[0044] This embodiment specifically provides a structure of a vehicle-mounted lifting device 1, which uses a support rod 21 to fix the vehicle-mounted lifting device 1 relative to the vehicle. The rotating pin 6 is plugged into the arm body 31 and connected to the first plug hole 221, so that the arm body 31 and the support rod 21 can move relative to each other while the arm body 31 and the support rod 21 are connected. In addition, a card slot 231 is set on the lower side of the arm body 31 corresponding to the card connector 23, so that the support rod 34 can adjust the lifting angle of the arm body 31 relative to the support rod 21 by fixing it in different card slots 231 to control the lifting height, which can adapt to different lifting requirements and improve the versatility of the vehicle-mounted lifting device 1.

[0045] Optionally, in addition to the Figures 1 to 7 In addition to the structure shown, there may also be an embodiment in which the support rod 34 is arranged on the support rod 21 and the slot 231 is on the boom body 31. In this embodiment, the clamping member 23 is arranged on the boom body 31, and the slot 231 is opened at the lower end of the clamping member 23.

[0046] Optionally, the support rod 34 can be a double rod arranged at an interval, and a cross bar is connected between the double rods. When the boom body 31 is in the working position relative to the support member 2, the cross bar is set in the slot 231, so as to be balanced and stably supported between the boom body 31 and the support member 2.

[0047] In a specific embodiment, the boom body 31 may specifically include a first rod body 32 and a second rod body 33, one end of the first rod body 32 is connected to the rotating end 22, the other end of the first rod body 32 is connected to one end of the second rod body 33, and the second rod body 33 is arranged perpendicular to the first rod body 32. An avoidance groove 232 may be formed between the two clamping members 23, the first plug hole 221 is arranged at one end of the avoidance groove 232, and the length of the avoidance groove 232 is less than the length of the first rod body 32.

[0048] See also Figure 1 , Figure 2 , Figure 4In the structure provided in this embodiment, the first rod body 32 and the second rod body 33 form an L-shaped boom body 31. When the support rod 34 is docked with the slot 231 to support the boom body 31 and the support rod 21, the first rod body 32 and the second rod body 33 can cooperate with the support rod 34 to form a triangular structure with good stability, thereby improving the structural stability of the vehicle-mounted hoisting device 1, making the vehicle-mounted hoisting device 1 more stable and durable during the hoisting operation. When the support rod 34 and the slot 231 are disassembled, the boom body 31 can naturally rotate downward with the rotating pin 6 as the axis, and the avoidance slot 232 between the two clamping parts 23 can just avoid the first rod body 32, so that the first rod body 32 rotates to at least partially accommodated by the avoidance slot 232. At this time, the second rod body 33 droops, so that the boom body 31 can move to the folding storage position relative to the support member 2, and the vehicle-mounted hoisting device 1 can be folded and folded.

[0049] In a specific embodiment, the second rod body 33 may specifically include an inner sleeve rod 331 and an outer sleeve rod 334. The outer sleeve rod 334 may include a sleeve connection portion 335. The sleeve connection portion 335 is arranged at one end of the outer sleeve rod 334. The other end of the outer sleeve rod 334 is connected to the first rod body 32. One end of the inner sleeve rod 331 is movably sleeved in the sleeve connection portion 335. The inner sleeve rod 331 is provided with a second plug hole 332. The sleeve connection portion 335 may be provided with a plurality of third plug holes 336. The boom body 31 also includes a first latch 5. The plurality of third plug holes 336 are arranged along the extension direction of the outer sleeve rod 334. The first latch 5 is used to be inserted into the second plug hole 332 and any third plug hole 336, so that the inner sleeve rod 331 and the outer sleeve rod 334 can be locked.

[0050] In the structure provided in this embodiment, the inner sleeve rod 331 and the outer sleeve rod 334 can be extended and retracted by adjusting the third plug hole 336 plugged with the first plug pin 5, thereby changing the outer contour length of the second rod body 33, thereby increasing the hoisting distance of the vehicle-mounted hoisting device 1. When the angle formed between the arm body 31 and the support rod 21 is not equal to 90°, changing the outer contour length of the second rod body 33 can also change the height of the hoisted object, so that the vehicle-mounted hoisting device 1 can be flexibly adjusted to meet different usage requirements, which can increase the versatility of the vehicle-mounted hoisting device 1.

[0051] Optionally, the number of the second plug holes 332 can be multiple, and the number of the third plug hole 336 can be one. In this case, the outer contour length of the second rod body 33 can also be changed by changing the insertion position of the first plug pin 5. Similarly, under the premise of ensuring structural strength, the number of the second plug hole 332 and the third plug hole 336 can be multiple.

[0052] In a specific embodiment, the vehicle-mounted hoisting device 1 further includes a rigging assembly 4, which may include a hoisting rope 41 and a rope twisting member 42, a traction portion 333 is provided at one end of the inner sleeve rod 331 away from the sleeve connection portion 335, the rope twisting member 42 is arranged on the outer sleeve rod 334, one end of the hoisting rope 41 is wound in the rope twisting member 42, the other end of the hoisting rope 41 is mounted on the traction portion 333, and the other end of the hoisting rope 41 away from the rope twisting member 42 is used to pull the object. Through the structure provided in this embodiment, the traction portion 333 can be used as a fulcrum to achieve the hoisting of the object by using the lock assembly.

[0053] Specifically, Figure 4 , Figure 5 As shown, the boom body 31 may include a rigging fixture 337, which is disposed at one end of the boom body 31 away from the traction portion 333 and is used to connect the rigging assembly 4. The rigging fixture 337 may be detachably connected to the rigging assembly 4 by plugging, screwing, etc., so as to achieve a replaceable effect of the rigging assembly 4, which is beneficial to the replacement and maintenance of the rigging assembly 4. The rigging fixture 337 may also be fixedly connected to the rigging assembly 4 by welding, bonding, etc., so as to stably and fixedly connect the rigging assembly 4 to the boom body 31, thereby improving the stability of the vehicle-mounted hoisting device 1 during hoisting operations.

[0054] In a specific embodiment, the vehicle-mounted hoisting device 1 may further include a controller and a driving member, wherein the controller is connected to the driving member, and the driving member drives the rope-twisting member 42. The controller may include a human-machine interface, and the operator of the vehicle-mounted hoisting device 1 may input a hoisting instruction to the controller through the human-machine interface, thereby using the controller to control the driving member to control the vehicle-mounted hoisting device 1 to work according to the operator's needs.

[0055] For example, the human-machine interface may include a communication interface, and the client operated by the operator is connected to the controller via the communication interface, and can then input lifting height parameters into the controller, so that the controller controls the driving member to drive the rope twisting member 42 to work according to the lifting height parameters, so as to lift the object connected to the lifting rope 41 to a position corresponding to the lifting height parameters by twisting the lifting rope 41.

[0056] In a specific embodiment, the second fixed structure can be a support rod 34, and the support rod 34 can include a rotation axis 341 and a third rod body 342. One end of the third rod body 342 is used to dock with the card slot 231, and the rotation axis 341 is set at the other end of the third rod body 342. The third rod body 342 can rotate with the rotation axis 341 as the axis and parallel to the rotation plane. Through the structure provided by this embodiment, the third rod body 342 of the support rod 34 can rotate with the rotation axis 341 as the axis, so that the other end of the third rod body 342 away from the rotation axis 341 moves to a position corresponding to a different card slot 231, or the other end of the third rod body 342 away from the rotation axis 341 moves to a position separated from the card slot 231. When the other end of the third rod body 342 away from the rotation axis 341 is not docked with the card slot 231, the third rod body 342 can droop naturally under the action of gravity, so that the occupied space can be reduced when the vehicle-mounted hoisting device 1 is folded and folded, thereby improving the portability of the vehicle-mounted hoisting device 1.

[0057] Considering the characteristics of power maintenance vehicles and the needs of hoisting objects in the power field, the height of the hoisting object of the vehicle-mounted hoisting device 1 can be set between 1 meter and 2 meters. This height range can not only meet the needs of most power facility maintenance, but also effectively reduce the instability and safety hazards caused by excessively high structures.

[0058] Optionally, the support rod 21 may include a lifting cylinder so as to adjust the height of the rotating end 22 in the vertical direction, thereby meeting the height adjustment requirement of the object hoisted by the vehicle-mounted hoisting device 1 .

[0059] In order to meet the hoisting requirements of objects of different volumes and weights, an adjustable boom system can be developed. The distance between the traction part 333 and the support rod 21 can be set between 0.9 meters and 1.5 meters, and the number of the third plug holes 336 can be three. Thus, the length of the boom body 31 can be adjusted through the three-hole positioning pin eyes, increasing the flexibility and convenience of operation. This design will enable the vehicle-mounted hoisting device 1 to easily cope with various on-site situations and improve work efficiency.

[0060] According to the requirements of safe production, the maximum lifting weight of the vehicle-mounted lifting device 1 can be controlled at 500 kg, and the commonly used lifting weight is set to 300 kg. Such a design not only meets the lifting requirements of most power equipment, but also reduces the risks caused by overloading. In order to meet the requirements of maximum lifting weight, commonly used lifting weight and lifting height, the diameter of the lifting rope 41 in the rigging assembly 4 can be set to 4-6 mm, and the length of the lifting rope 41 can be 4-5 meters to ensure sufficient bearing capacity and operating range.

[0061] Preferably, the diameter of the hoisting rope 41 may be set to 5 mm, and the length of the hoisting rope 41 may be 4.5 meters.

[0062] The driving part of the vehicle-mounted hoisting device 1 can be an electric motor with a rated power of 12V to 24V, so that the vehicle-mounted hoisting device 1 can be directly powered by a vehicle battery or equipped with a portable battery. This can not only improve the mobility of the vehicle-mounted hoisting device 1, but also reduce the dependence on external power sources. The rated power design of the electric motor will take into account energy efficiency and reliability, and can ensure stable operation in most environments and working conditions.

[0063] The vehicle-mounted lifting device 1 may also be equipped with safety auxiliary facilities of a diaphragm automatic braking system to ensure the stability of the load when it is lifted or suspended, and to provide a self-locking function when necessary, thereby greatly improving the safety of the operation.

[0064] Optionally, the vehicle-mounted lifting device 1 may also be equipped with an electronic scale device to measure the actual weight of the lifting object before and / or during lifting, which can help operators to reasonably select the lever arm and lifting auxiliary equipment and avoid safety accidents caused by inaccurate load estimation.

[0065] Optionally, the support rod 21 may further include a rotating shaft, and under the action of the rotating shaft, the boom assembly 3 may rotate relative to the support rod 21 or the vehicle in a horizontal direction, thereby driving the lifted object to move.

[0066] See also Figure 8 , Figure 8 It is a flowchart of the operation method of the vehicle-mounted lifting device provided by the present application. It should be noted that if there is substantially the same result, this embodiment is not limited to Figure 8 The process sequence shown is limited. Figure 8 As shown, this embodiment includes:

[0067] S100: step of unfolding the boom assembly 3.

[0068] Before using the vehicle-mounted lifting device 1 to perform lifting operations, the arm body 31 of the arm assembly 3 is rotated relative to the support member 2 with the rotating pin shaft 6 as the axis, thereby rotating from the folded storage position to the working position, and then the first fixed structure is connected to the second fixed structure to lock the arm body 31 in the working position, so that the vehicle-mounted lifting device 1 is changed from the folded and collected idle state to the working state where lifting operations can be performed. The arm body 31 locked in the working position can be used to perform lifting operations.

[0069] S200: step of folding the boom assembly 3.

[0070] After the lifting operation is completed using the vehicle-mounted lifting device 1, the docked first fixed structure and the second fixed structure are first disassembled, and the lock of the arm body 31 is released, so that the arm body 31 located in the working position relative to the support member 2 can rotate around the rotating pin 6 as the axis, and then can be rotated from the working position to the folded storage position, thereby realizing the folding of the arm assembly 3, and the vehicle-mounted lifting device 1 is changed from the working state in which the lifting operation can be carried out to the folded and stored idle state.

[0071] Different from the prior art, in the method provided in this embodiment, the support member 2 is used to support the boom assembly 3 and the hoisted object, and the support member 2 and the boom body 31 can rotate relative to each other with the rotating pin 6 as the axis. By respectively providing the first fixing structure and the second fixing structure on the support member 2 and the boom assembly 3, when the vehicle-mounted hoisting device 1 needs to be used, the boom body 31 can be rotated to the working position relative to the support member 2, and the first fixing structure and the second fixing structure are docked to lock the boom body 31 relative to the support member 2 in the working position, so that the vehicle-mounted hoisting device 1 can work normally. When the vehicle-mounted hoisting device 1 is not needed, the first fixing structure and the second fixing structure can be disassembled, so that the boom body 31 can be rotated to the folding and storage position relative to the support member 2, so that the vehicle-mounted hoisting device 1 can be folded and retracted, which can improve the usability of the vehicle-mounted hoisting device 1.

[0072] The above description is only part of the implementation methods of the present application, and does not limit the protection scope of the present application. Any equivalent device or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A vehicle-mounted lifting device, characterized in that: include: A support member (2) comprising a rotating end (22) and a first fixed structure; A boom assembly (3), comprising a boom body (31) and a second fixed structure, wherein a first end of the boom body (31) is connected to the rotating end (22) via a rotating pin (6), and the second fixed structure is arranged on the boom body (31); The boom body (31) can rotate relative to the support member (2) between a working position and a folded storage position with the rotating pin shaft (6) as the axis, and the first fixing structure and the second fixing structure are used for docking to lock the boom body (31) in the working position.

2. The vehicle-mounted lifting device according to claim 1, characterized in that: The first fixing structure comprises one of a support rod (34) and a slot (231), and the second fixing structure comprises the other, one end of the support rod (34) is snap-fitted with the slot (231) to be supported between the support member (2) and the boom body (31).

3. The vehicle-mounted lifting device according to claim 2, characterized in that: There are a plurality of the slots (231), and the plurality of slots (231) are arranged at different positions. When one end of the support rod (34) is arranged in a different slot (231), the boom body (31) rotates relative to the support member (2) to a different working position.

4. The vehicle-mounted lifting device according to claim 3, characterized in that: The support member (2) comprises a support rod (21), one end of the support rod (21) is fixed to the vehicle, and the other end is provided with the rotating end (22) and the first fixing structure, the first fixing structure comprises a clamping member (23), two clamping members (23) are provided, the two clamping members (23) are arranged opposite to each other and spaced apart, the clamping member (23) is provided with a first plug hole (221), both ends of the rotating pin shaft (6) are connected to the first plug hole (221), the first end of the boom body (31) is arranged between the two clamping members (23), the rotating pin shaft (6) passes through the first end of the boom body (31), the upper ends of the two clamping members (23) are provided with a plurality of spaced-apart slots (231), and the boom body (31) is rotatably connected to the support rod (34).

5. The vehicle-mounted lifting device according to claim 4, characterized in that: The boom body (31) comprises a first rod body (32) and a second rod body (33), one end of the first rod body (32) is connected to the rotating end (22), and the other end is connected to one end of the second rod body (33), and the second rod body (33) is perpendicular to the first rod body (32); An avoidance slot (232) is formed between the two clamping parts (23); the first insertion hole (221) is arranged at one end of the avoidance slot (232); and the length of the avoidance slot (232) is smaller than the length of the first rod body (32).

6. The vehicle-mounted lifting device according to claim 5, characterized in that: The second rod body (33) comprises an inner sleeve rod (331) and an outer sleeve rod (334); the outer sleeve rod (334) comprises a sleeve connection portion (335); the sleeve connection portion (335) is arranged at one end of the outer sleeve rod (334); the other end of the outer sleeve rod (334) is connected to the first rod body (32); one end of the inner sleeve rod (331) is movably sleeved in the sleeve connection portion (335); The inner sleeve rod (331) is provided with a second plug hole (332), and the sleeve connection portion (335) is provided with a plurality of third plug holes (336). The boom body (31) further comprises a first latch (5), and the plurality of third plug holes (336) are arranged along the extension direction of the outer sleeve rod (334). The first latch (5) is used to be inserted into the second plug hole (332) and any one of the third plug holes (336) to lock the inner sleeve rod (331) with the outer sleeve rod (334).

7. The vehicle-mounted lifting device according to claim 6, characterized in that: The vehicle-mounted lifting device (1) also includes a rigging assembly (4), the rigging assembly (4) including a lifting rope (41) and a rope twisting member (42), a traction portion (333) being provided at one end of the inner sleeve rod (331) away from the sleeve connection portion (335), the rope twisting member (42) being arranged on the outer sleeve rod (334), one end of the lifting rope (41) being wound on the rope twisting member (42), the other end of the lifting rope (41) being mounted on the traction portion (333), and the other end of the lifting rope (41) being used for pulling an object.

8. The vehicle-mounted hoisting device according to claim 7, characterized in that: The vehicle-mounted lifting device (1) further comprises a controller and a driving member, wherein the controller is connected to the driving member, and the driving member drives the rope-twisting member (42).

9. The vehicle-mounted hoisting device according to claim 4, characterized in that: The second fixed structure is a support rod (34), the support rod (34) comprising a rotation axis (341) and a third rod body (342), one end of the third rod body being used for docking with the slot (231), the rotation axis (341) being arranged at the other end of the third rod body, and the third rod body being capable of rotating around the rotation axis (341) as an axis.

10. A method for operating a vehicle-mounted lifting device, characterized in that: The vehicle-mounted lifting device (1) according to any one of claims 1 to 9 comprises the following steps: The boom assembly (3) unfolding step; The step of folding the boom assembly (3).

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