Leg lifting device for assembled trolley

Abstract

The utility model is suitable for the technical field of assembly trolleys, and provides an assembly trolley leg lifting device which comprises a trolley body and a supporting mechanism. The supporting mechanism comprises a fixed foot stool; the rotating shaft is arranged in the fixed foot stool; the movable foot stool is arranged on the rotating shaft; the first mounting blocks are arranged on the bottom side of the trolley body; the second mounting block is arranged on the inner side of the movable foot stool; the driving cylinder is arranged below the first mounting block; the trolley can sense changes of the surrounding environment in real time and automatically adjust the posture so as to adapt to different terrains and obstacles, when one side of the trolley body needs to be lifted to cross a supporting stand column or other obstacles, the trolley body can achieve accurate leg lifting height adjustment so as to adapt to the supporting stand columns with different heights and intervals, and the trolley body is convenient to use. According to the design, the adaptability and flexibility of the trolley body are improved, and the trolley body can efficiently and safely complete tasks in various working scenes.

Description

Technical Field

[0001] The utility model belongs to the technical field of assembling trolleys, and in particular relates to a leg-lifting device for assembling trolleys. Background Art

[0002] With the rapid development of industrial automation, trolleys, as important logistics transportation tools, play a key role in various work scenarios. However, the complex and changing working environment places higher demands on the stability and adaptability of trolleys. Traditional trolley designs often have difficulty coping with different terrains and obstacles, such as supporting columns, resulting in low work efficiency and potential safety hazards.

[0003] Traditional assembly trolleys usually need to be disassembled, moved, and reinstalled to cross the supporting columns. This process is not only difficult to construct, but also inefficient. During the assembly construction of subway stations, this frequent disassembly and installation not only increases construction time, but may also lead to a decrease in construction accuracy, further increasing safety hazards. In addition, due to the low efficiency of the trolley crossing the supporting columns during assembly, the overall assembly construction efficiency is also seriously restricted;

[0004] The more efficient the trolley is in crossing the supporting columns during assembly, the higher the overall assembly construction efficiency will be. However, this process of pursuing efficiency is often accompanied by safety challenges. The traditional disassembly, transportation and reinstallation process is not only inefficient, but also has great safety hazards. For example, improper operation may cause the trolley to become unstable and personal injuries may occur. Utility Model Content

[0005] The utility model provides a leg-lifting device for an assembly trolley, which aims to solve the problem that the traditional assembly trolley often needs to go through a tedious disassembly, transportation and reinstallation process when crossing the supporting columns. This not only significantly increases the construction difficulty and time cost, but also may lead to a decrease in construction accuracy, thereby increasing safety hazards. Especially in large-scale construction projects such as subway stations, frequent disassembly and installation operations not only affect the overall assembly construction efficiency, but may also cause the trolley to become unstable and personnel injured due to improper operation.

[0006] The utility model is implemented as follows: an assembled trolley leg-lifting device comprises a trolley body; a plurality of supporting mechanisms arranged below the trolley body; wherein the supporting mechanisms comprise: a group of fixed legs symmetrically arranged at two sides of the bottom of the trolley body, the opposite sides of the two fixed legs being arranged in a U-shape with openings facing each other; a rotating shaft arranged in the fixed legs, the rotating shaft being rotatably matched with the fixed legs; a movable legs arranged on the rotating shaft; a plurality of first mounting blocks arranged on the bottom side of the trolley body; a second mounting block arranged on the inner side of the movable legs; a driving cylinder arranged below the first mounting block, the output end of the driving cylinder being fixedly connected to one end of the corresponding second mounting block.

[0007] Preferably, a buffer is provided on the bottom side of the movable tripod; the buffer comprises: a plurality of return springs provided on the bottom side of the movable tripod, a damper is provided inside each of the return springs; a pad is provided on the side of the return springs away from the movable tripod; and a rubber pad is provided on the bottom side of the pad.

[0008] Preferably, the outer surface of the rubber pad is provided with anti-skid patterns, and the anti-skid patterns are irregularly arranged.

[0009] Preferably, the number of the supporting mechanisms is at least 3 groups.

[0010] Preferably, a radar sensor and a controller are provided on the bottom side of the trolley body, and the controller is electrically connected to the radar sensor and the driving cylinder.

[0011] Preferably, reinforcing ribs are arranged inside the movable tripod, and the reinforcing ribs are in any one of a cross shape, a cross arrangement or a tic-tac-toe arrangement.

[0012] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0013] First: By designing at least three sets of supporting mechanisms on the bottom side of the trolley body, the trolley can maintain stability and safety in complex working environments. The combination of radar sensors and controllers enables the trolley body to perceive changes in the surrounding environment in real time and automatically adjust its posture to adapt to different terrains and obstacles. In particular, when it is necessary to lift one side of the trolley body to cross supporting columns or other obstacles, the trolley can achieve precise leg lift height adjustment through the synergy of the driving cylinder and the movable tripod, thereby adapting to supporting columns of different heights and spacings. This design significantly improves the adaptability and flexibility of the trolley body, enabling it to complete tasks efficiently and safely in a variety of work scenarios.

[0014] Second: the movable tripod and the fixed tripod can rotate freely through the rotating shaft, so that the movable tripod can adapt to the changes in supporting force during the rotation process, ensuring that the trolley always remains stable during the leg-lifting process, avoiding accidental tipping or instability caused by the leg-lifting operation. In addition, the setting of the return spring and rubber pad further enhances the shock absorption and buffering capacity of the trolley, effectively absorbing and dispersing the impact and vibration from the ground and the trolley body, protecting the integrity of the trolley body and the supporting structure, and improving the safety and service life of the trolley body.

[0015] Third: The traditional method of crossing supporting columns or other obstacles often requires frequent disassembly, transportation and reinstallation processes, which not only reduces work efficiency but also increases safety hazards. The device lifts the supporting columns through the movable tripod, which can significantly reduce these processes and thus improve work efficiency; at the same time, since the trolley body always remains stable and safe during the leg lifting process, it also greatly reduces the safety hazards caused by improper operation, which not only improves work efficiency but also improves production safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the support mechanism of the utility model;

[0017] Figure 2 It is a front structural schematic diagram of the utility model;

[0018] Figure 3 It is a front structural schematic diagram of the utility model;

[0019] Figure 4 It is a side structural schematic diagram of the utility model;

[0020] Figure 5 It is a schematic diagram of the structure of the buffer member of the utility model;

[0021] Figure 6 It is a schematic diagram of the connection structure of the fixed tripod and the movable tripod of the utility model;

[0022] In the figure: 1. trolley body; 201. fixed tripod; 202. rotating shaft; 203. movable tripod; 204. first mounting block; 205. second mounting block; 206. driving cylinder; 301. return spring; 302. pad; 303. rubber pad; 4. radar sensor; 5. controller. DETAILED DESCRIPTION

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0024] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments 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.

[0025] The utility model provides a leg-lifting device for assembling a trolley, such as Figure 1-6 As shown, it includes a trolley body 1; a plurality of supporting mechanisms arranged below the trolley body 1; wherein the supporting mechanisms include: a group of fixed legs 201 symmetrically arranged at both sides of the bottom of the trolley body 1, and the opposite sides of the two fixed legs 201 are arranged in a U-shape with openings facing each other; a rotating shaft 202 arranged in the fixed legs 201, and the rotating shaft 202 is rotatably matched with the fixed legs 201; a movable leg 203 arranged on the rotating shaft 202; a plurality of first mounting blocks 204 arranged on the bottom side of the trolley body 1; a second mounting block 205 arranged on the inner side of the movable leg 203; a driving cylinder 206 arranged below the first mounting block 204, and the output end of the driving cylinder 206 is fixedly connected to one end of the corresponding second mounting block 205.

[0026] It should be noted that, because traditional assembly trolleys often need to go through a tedious process of disassembly, transportation and reinstallation when crossing supporting columns, this not only significantly increases the difficulty and time cost of construction, but may also lead to a decrease in construction accuracy, thereby increasing safety hazards. Especially in large-scale construction projects such as subway stations, frequent disassembly and installation operations not only affect the overall assembly construction efficiency, but may also cause the trolley to become unstable and cause injuries to personnel due to improper operation. This solution enhances the stability and safety of the trolley by setting a support mechanism. Combined with the radar sensor 4 and the controller 5, the trolley body 1 can sense the changes in the surrounding environment in real time and automatically adjust its posture to adapt to different terrains and obstacles. In particular, when it is necessary to lift one side of the trolley body 1 to cross the supporting column or other obstacles, the trolley body 1 can achieve precise leg lifting height adjustment through the synergistic effect of the driving cylinder 206 and the movable tripod 203, so as to adapt to supporting columns of different heights and spacings. This design not only improves the adaptability and flexibility of the trolley body 1, but also enables it to complete tasks efficiently and safely in a variety of work scenarios; the setting of the reset spring 301 and the rubber pad 303 further enhances the shock absorption and buffering capacity of the trolley body 1, effectively absorbs and disperses the impact and vibration from the ground and the trolley body 1, and protects the integrity of the trolley body 1 and the supporting structure.

[0027] Specifically, in this embodiment, the scheme mainly includes a trolley body 1; a plurality of supporting mechanisms arranged under the trolley body 1; when it is necessary to lift one side of the trolley body 1 to cross a supporting column or other obstacles, two driving cylinders 206 at the same level will start working at the same time; the output end of each driving cylinder 206 is fixedly connected to the second mounting block 205 on the two movable tripods 203 on the corresponding side; when the driving cylinders 206 are extended, they will simultaneously push the second mounting block 205 and the movable tripod 203 connected thereto to rotate outward;

[0028] Since the movable tripod 203 is connected to the fixed tripod 201 via the rotating shaft 202, and the rotating shaft 202 and the fixed tripod 201 are in rotational cooperation, it means that the movable tripod 203 can rotate freely around the rotating shaft 202; as the driving cylinder 206 continues to extend, the movable tripod 203 will gradually move out of the U-shaped opening of the fixed tripod 201, and form a certain angle with the fixed tripod 201;

[0029] In this process, the supporting force provided by the movable tripod 203 and the fixed tripod 201 will change; the supporting force originally borne by the fixed tripod 201 alone will now be partially transferred to the movable tripod 203, and the movable tripod 203 adapts to the change of the supporting force by rotating; this change achieves the effect of lifting the legs of the trolley body 1, so that one side of the trolley body 1 can be lifted, so that it can cross the supporting pillars or other obstacles;

[0030] By precisely controlling the extension length of the driving cylinder 206, the rotation angle of the movable tripod 203 can be precisely adjusted, thereby precisely controlling the height of the leg lift of the trolley body 1; this height adjustment function enables the trolley body 1 to adapt to support columns of different heights and spacings, thereby improving the flexibility and adaptability of the trolley body 1;

[0031] During the whole leg-lifting process, the other active legs 203 that are not in operation are always kept in a supporting state, ensuring the stability and safety of the trolley body 1; this design enables the trolley body 1 to remain balanced when the leg is lifted, avoiding accidental tipping or instability caused by the leg-lifting operation;

[0032] By utilizing this leg-lifting activity, the process of disassembly, transportation and reinstallation required for the trolley body 1 when crossing support columns or other obstacles can be significantly reduced; this not only improves work efficiency, but also reduces safety hazards caused by frequent transportation and installation.

[0033] In a further preferred embodiment of the present invention, Figure 5As shown, a buffer is provided on the bottom side of the movable tripod 203; the buffer includes: a plurality of return springs 301 provided on the bottom side of the movable tripod 203, and a damper is provided inside each of the return springs 301; a pad 302 is provided on the side of the return springs 301 away from the movable tripod 203; and a rubber pad 303 is provided on the bottom side of the pad 302.

[0034] In this embodiment, when the movable tripod 203 is in a supporting state, it bears the weight of the trolley body 1 and other external forces that may be generated; at this time, the return spring 301 is compressed and plays its key role; the main function of the return spring 301 is to absorb and disperse the external forces applied to the movable tripod 203; when external forces act on the trolley body 1, such as when the trolley is impacted or vibrated, the return spring 301 can absorb these forces and disperse the forces to a larger area through its elastic properties, thereby reducing the direct impact on the trolley body 1 and the supporting structure; when the return spring 301 is compressed, the pad 302 ensures that the compression force can be evenly transmitted to the rubber pad 303 below, further absorbing and dispersing the impact and vibration from the ground. The softness and elasticity of the rubber pad 303 make it an effective vibration isolator, which can reduce the impact of vibration from the ground on the trolley body 1.

[0035] In a further preferred embodiment of the present invention, Figure 5 As shown, the outer surface of the rubber pad 303 is provided with anti-skid patterns, and the anti-skid patterns are irregularly arranged.

[0036] In this embodiment, the anti-slip texture can increase the roughness of the surface of the rubber pad 303, so that the contact area between the rubber pad 303 and the ground is larger, thereby generating greater friction; this friction can effectively prevent the trolley body 1 from sliding or tipping over when moving or working, especially on wet or uneven ground.

[0037] In a further preferred embodiment of the present invention, Figure 1-4 As shown, the number of the supporting mechanisms is at least 3 groups.

[0038] In this embodiment, multiple supporting mechanisms can share the weight of the trolley body 1, reduce the pressure on each supporting mechanism, improve the stability and supporting capacity of the trolley body 1, and ensure that the trolley can work safely and stably under different ground conditions.

[0039] In a further preferred embodiment of the present invention, Figure 2-3 As shown, a radar sensor 4 and a controller 5 are disposed on the bottom side of the trolley body 1 , and the controller 5 is electrically connected to the radar sensor 4 and the driving cylinder 206 .

[0040] In this embodiment, the radar sensor 4 (IVS-148) can sense the changes in the surrounding environment in real time and transmit these data to the controller 5 (STM8S003F3). The controller 5 makes decisions based on these data and realizes the lifting and lowering action of the trolley by driving the cylinder 206. This closed-loop control system can ensure that the trolley body 1 maintains stability and safety in a complex working environment.

[0041] In a further preferred embodiment of the present invention, Figure 1-3 As shown, the movable tripod 203 is provided with reinforcing ribs, and the reinforcing ribs are in any one of a cross shape, a cross arrangement or a tic-tac-toe arrangement.

[0042] In this embodiment, the structural strength and stability of the movable tripod 203 can be effectively improved by providing reinforcing ribs, so that it can better withstand the weight and external loads from the trolley body 1; the durability of the movable tripod 203 can also be improved and its service life can be extended.

[0043] Working principle: The radar sensor 4 of the device can sense the changes in the surrounding environment in real time and transmit these data to the controller 5. The controller 5 makes decisions based on these data and realizes the lifting and lowering action of the trolley by driving the cylinder 206. This closed-loop control system can ensure that the trolley body 1 maintains stability and safety in a complex working environment. When it is necessary to lift one side of the trolley body 1 to cross the supporting column or other obstacles, the two driving cylinders 206 at the same level will start working at the same time; the output end of each driving cylinder 206 is fixedly connected to the second mounting block 205 on the two movable tripods 203 on the corresponding side; when the driving cylinders 206 are extended, they will simultaneously push the second mounting block 205 and the movable tripod 203 connected thereto to rotate outward;

[0044] Since the movable tripod 203 is connected to the fixed tripod 201 via the rotating shaft 202, and the rotating shaft 202 and the fixed tripod 201 are in rotational cooperation, it means that the movable tripod 203 can rotate freely around the rotating shaft 202; as the driving cylinder 206 continues to extend, the movable tripod 203 will gradually move out of the U-shaped opening of the fixed tripod 201, and form a certain angle with the fixed tripod 201;

[0045] In this process, the supporting force provided by the movable tripod 203 and the fixed tripod 201 will change; the supporting force originally borne by the fixed tripod 201 alone will now be partially transferred to the movable tripod 203, and the movable tripod 203 adapts to the change of the supporting force by rotating; this change achieves the effect of lifting the legs of the trolley body 1, so that one side of the trolley body 1 can be lifted, so that it can cross the supporting pillars or other obstacles;

[0046] By precisely controlling the extension length of the driving cylinder 206, the rotation angle of the movable tripod 203 can be precisely adjusted, thereby precisely controlling the height of the leg lift of the trolley body 1; this height adjustment function enables the trolley body 1 to adapt to support columns of different heights and spacings, thereby improving the flexibility and adaptability of the trolley body 1;

[0047] During the whole leg-lifting process, the other active legs 203 that are not in operation are always kept in a supporting state, ensuring the stability and safety of the trolley body 1; this design enables the trolley body 1 to remain balanced when the leg is lifted, avoiding accidental tipping or instability caused by the leg-lifting operation;

[0048] By utilizing this leg-lifting activity, the process of disassembling, carrying and reinstalling the trolley body 1 when crossing a support column or other obstacles can be significantly reduced; this not only improves work efficiency, but also reduces safety hazards caused by frequent handling and installation;

[0049] When the movable tripod 203 is in a supporting state, it bears the weight of the trolley body 1 and other external forces that may be generated; at this time, the return spring 301 is compressed and plays its key role; the main function of the return spring 301 is to absorb and disperse the external forces applied to the movable tripod 203; when external forces act on the trolley body 1, such as when the trolley is impacted or vibrated, the return spring 301 can absorb these forces and disperse the forces to a larger area through its elastic properties, thereby reducing the direct impact on the trolley body 1 and the supporting structure; when the return spring 301 is compressed, the pad 302 ensures that the compression force can be evenly transmitted to the rubber pad 303 below, further absorbing and dispersing the impact and vibration from the ground. The softness and elasticity of the rubber pad 303 make it an effective vibration isolator, which can reduce the impact of vibration from the ground on the trolley body 1.

[0050] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0051] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0052] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0053] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A leg-lifting device for assembling a trolley, It is characterized in that include: Trolley body; A plurality of supporting mechanisms disposed below the trolley body; Wherein, the supporting mechanism comprises: A set of fixed legs symmetrically arranged at two sides of the bottom of the trolley body, and the two fixed legs are arranged in a U-shape with openings facing each other on opposite sides; A rotating shaft disposed in the fixed tripod, the rotating shaft being rotatably matched with the fixed tripod; A movable tripod provided on the rotating shaft; A plurality of first mounting blocks disposed on the bottom side of the trolley body; A second mounting block disposed on the inner side of the movable tripod; A driving cylinder is arranged below the first mounting block, and an output end of the driving cylinder is fixedly connected to an end corresponding to the second mounting block.

2. A leg-lifting device for assembling a trolley as claimed in claim 1, It is characterized in that A buffer is provided on the bottom side of the movable tripod; The buffer member comprises: A plurality of return springs are arranged at the bottom side of the movable tripod, and a damper is arranged in each of the return springs; A pad is provided on one side of the plurality of return springs away from the movable tripod; A rubber pad is arranged on the bottom side of the pad.

3. A leg-lifting device for assembling a trolley as claimed in claim 2, It is characterized in that The outer surface of the rubber pad is provided with anti-skid patterns, and the anti-skid patterns are irregularly arranged.

4. A leg-lifting device for assembling a trolley as claimed in claim 1, It is characterized in that The number of the supporting mechanisms is at least 3 groups.

5. The leg-lifting device for assembling a trolley as claimed in claim 1, It is characterized in that A radar sensor and a controller are arranged on the bottom side of the trolley body, and the controller is electrically connected to the radar sensor and the driving cylinder.

6. A leg-lifting device for assembling a trolley as claimed in claim 2, It is characterized in that The movable tripod is provided with reinforcing ribs, and the reinforcing ribs are in any one of a cross shape, a cross arrangement or a tic-tac-toe arrangement.

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