Lifting mobile step platform for automobile assembly line

CN224812223UActive Publication Date: 2026-09-29ZHENGZHOU NISSAN AUTOMOBILE CO LTD
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Patent Information

Application Number
CN202522514548.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-27
Publication Date
2026-09-29
Estimated Expiration
2035-11-27

AI Technical Summary

Benefits of technology

[0009]本实用新型优点在于通过设置在第一框架上的剪叉式升降台,能够满足汽车装配生产线中各高度位置的人工装配零部件,降低汽车高处零部件的装配难度,避免工人频繁攀爬高台,保障工人的人身安全;另外,设置在第一框架底部的稳定支腿配合设置在第二框架底部的定向脚轮,只需将整个框架向定向脚轮这一侧倾斜一定角度,便可使定向脚轮着地而稳定支腿抬起,实现稳定支固与行走移动间的快速切换,既满足线体的装配需求,又便于在狭窄的车体支架间移动,提高零部件装配的工作效率,具备良好的实用性、便利性及推广性。

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Abstract

The utility model discloses a kind of automobile assembly production line lifting type mobile step platform, including the first frame with stable supporting leg of bottom, first frame is connected with scissor type lifting platform by a pair of parallel slide rail;Scissor type lifting platform is constituted by X-shaped fork, electric hydraulic cylinder and horizontal pedal, the top of X-shaped fork is first, second lifting end, first lifting end is hinged with the bottom surface of horizontal pedal, second lifting end is slidably connected with the bottom surface of horizontal pedal by horizontal sliding assembly;Second frame is connected on the first frame, the bottom of second frame is flush with the bottom of first frame, and the top thereof is higher than the highest rising height of horizontal pedal, second frame top is provided with push-pull handrail, a pair of directional casters is arranged at the bottom of second frame directly below push-pull handrail, and the wheel bottom surface of directional caster is higher than the bottom surface of stable supporting leg.The utility model is characterized in that it can meet the manual assembly parts of each height position in automobile assembly production line, to avoid worker frequent climb high platform.
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Description

Technical Field

[0001] This utility model relates to the field of automotive assembly technology, and in particular to a lifting and moving platform for an automotive assembly production line. Background Technology

[0002] In automotive assembly lines, manual operation is often required when assembling parts, such as assembling roof racks or parts deep within the engine compartment. Because the positions of assembled parts vary in height, workers frequently need to climb up and down platforms. While existing movable trolley-type platform stands are convenient to move around the production line, fixed platform structures cannot be adjusted in height. This means that lower platforms suitable for low-level assembly cannot be used for high-level assembly, increasing the difficulty of high-level assembly, while higher platforms suitable for high-level assembly cannot be used for low-level assembly. Climbing up and down these platforms is relatively difficult for workers, increasing the risk of falls and injuries. Furthermore, existing trolley-type platform stands often have a walking mechanism installed under the platform surface. While this facilitates movement, its stability is significantly weak, making it prone to tipping over or collapsing when workers are climbing or standing on it, causing safety issues and, in severe cases, damage. Summary of the Invention

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by providing a lifting and moving platform for automobile assembly lines.

[0004] To achieve the above objectives, the present invention can adopt the following technical solution: The lifting and moving platform for an automobile assembly line according to this utility model includes a first frame with a stable support leg at the bottom. A scissor lift platform for vertical lifting is connected to the first frame via a pair of parallel slide rails. The scissor lift platform consists of an X-shaped fork, an electric hydraulic cylinder for driving the X-shaped fork to lift, and a horizontal pedal connected to the X-shaped fork. The top of the X-shaped fork has a first lifting end and a second lifting end that lift synchronously. The first lifting end is hinged to the bottom surface of the horizontal pedal, and the second lifting end is slidably connected to the bottom surface of the horizontal pedal via a horizontal sliding assembly. A second frame extending vertically upward is connected to the first frame located on one side of the horizontal pedal. The bottom of the second frame is flush with the bottom of the first frame, and its top is higher than the maximum lifting height of the horizontal pedal. A push-pull handrail is provided on the side of the top of the second frame away from the horizontal pedal. A pair of directional casters are provided at the bottom of the second frame directly below the push-pull handrail, and the bottom surface of the directional casters is higher than the bottom surface of the stable support leg.

[0005] Furthermore, both the first frame and the second frame are rectangular frames, and both have the same width of 350mm, so as to facilitate their movement between narrow vehicle body supports. At this time, there are four sets of stabilizing legs, which are evenly distributed at the four corners of the bottom surface of the first frame to ensure that the first frame and the second frame can be stably supported on the ground.

[0006] Furthermore, the second frame has vertical grooves on the two uprights near the scissor lift platform, and the horizontal pedal is provided with a guide slider that slides up and down along the vertical groove. The guide slider slides along the vertical groove to guide the horizontal pedal, making the up and down movement of the horizontal pedal more stable.

[0007] Furthermore, the horizontal sliding assembly includes a horizontal sliding groove fixed to the bottom surface of the horizontal pedal, and a reciprocating guide wheel is fitted in the horizontal sliding groove. The guide wheel is hinged to the second lifting end of the X-shaped fork. By the guide wheel rolling along the horizontal sliding groove, the first lifting end and the second lifting end of the top of the X-shaped fork can be raised and lowered more smoothly when raised and lowered synchronously.

[0008] Furthermore, a tool box can be installed on the top of the second frame, allowing workers to easily and quickly retrieve materials or tools when assembling parts while standing on a horizontal platform.

[0009] The advantages of this utility model are that the scissor lift platform set on the first frame can meet the needs of manual assembly of parts at various heights in the automobile assembly line, reduce the assembly difficulty of high-level automobile parts, avoid workers frequently climbing high platforms, and ensure the personal safety of workers. In addition, the stabilizing outriggers set at the bottom of the first frame, together with the directional casters set at the bottom of the second frame, can make the directional casters touch the ground and raise the stabilizing outriggers by simply tilting the entire frame at a certain angle towards the directional casters, realizing a quick switch between stable support and walking movement. It not only meets the assembly requirements of the line, but also facilitates movement between narrow car body supports, improves the work efficiency of parts assembly, and has good practicality, convenience and scalability. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] Figure 2 yes Figure 1 Axonometric view.

[0012] Figure 3 yes Figure 1 A diagram illustrating the movement. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] like Figure 1 , 2 As shown, the lifting and moving platform for the automobile assembly line of this utility model includes a first frame 1, which is a rectangular frame formed by square steel bars, with a width of 350mm, to facilitate movement between the narrow body supports on the automobile assembly line. The bottom of the first frame 1 is provided with four sets of stabilizing legs 2, evenly distributed at the four corners of the bottom surface of the first frame 1, ensuring that the first frame 1 can be stably supported on the ground.

[0015] A scissor lift platform 4, capable of vertical lifting, is connected to the first frame 1 via a pair of parallel slide rails 3. The scissor lift platform 4 consists of an X-shaped fork 4.1, an electric hydraulic cylinder 4.2 driving the X-shaped fork 4.1 to lift, and a horizontal pedal 4.3 connected to the X-shaped fork 4.1. The top of the X-shaped fork 4.1 comprises a first lifting end 4.4 and a second lifting end 4.5 that lift synchronously. The first lifting end 4.4 is hinged to the bottom surface of the horizontal pedal 4.3, while the second lifting end 4.5 is… The horizontal sliding assembly is slidably connected to the bottom surface of the horizontal pedal 4.3. Specifically, the horizontal sliding assembly includes a horizontal sliding groove 4.6 fixed to the bottom surface of the horizontal pedal 4.3. A reciprocating guide wheel 4.7 is fitted inside the horizontal sliding groove 4.6. The guide wheel 4.7 is hinged to the second lifting end 4.5 of the X-shaped fork 4.1, thereby making the synchronous lifting of the first lifting end 4.4 and the second lifting end 4.5 at the top of the X-shaped fork 4.1 smoother by utilizing the guide wheel 4.7 rolling along the horizontal sliding groove 4.6. By setting a scissor lift platform 4 on the first frame 1, after the worker climbs onto the horizontal pedal 4.3 of the scissor lift platform 4, he can control the scissor lift platform 4 to automatically rise or fall. This allows the worker to assemble parts at various heights, meeting the manual assembly needs of parts at various heights in the automobile assembly line, reducing the assembly difficulty of high-altitude parts, avoiding frequent climbing of high platforms by workers, and ensuring the personal safety of workers.

[0016] A vertically extending second frame 5 is connected to the first frame 1 located on one side of the horizontal pedal 4.3. This second frame 5 is a rectangular frame, also constructed of square steel, and welded to the first frame 1. The width of the second frame 5 is the same as that of the first frame 1, 350mm, to facilitate movement along with the first frame 1 within the narrow space between body supports on the automotive assembly line. The bottom of the second frame 5 is flush with the bottom of the first frame 1, while the top of the second frame 5 is higher than the maximum rising height of the horizontal pedal 4.3. A push-pull handle 6 is located at the top of the second frame 5, on the side of the second frame 5 furthest from the horizontal pedal 4.3. A pair of directional casters 7 are located at the bottom of the second frame 5 directly below the push-pull handle 6. The bottom surface of these directional casters 7 should be slightly higher than the bottom surface of the stabilizing leg 2, ensuring that the two directional casters 7 remain suspended when the stabilizing leg 2 is stably supported, thus guaranteeing the stability of the support for the first frame 1 and the second frame 5. When it is necessary to push or pull the first frame 1 and the second frame 5, such as... Figure 3 As shown, by simply tilting the entire frame at a certain angle toward the directional caster 7, the directional caster 7 can touch the ground, while the stabilizing support leg 2 is raised. At this point, the entire frame can be easily moved, achieving a quick switch between stable support and walking movement. This not only meets the assembly requirements of the production line but also facilitates movement between narrow vehicle body supports, improving the efficiency of parts assembly. It has good practicality, convenience, and scalability.

[0017] To further improve the lifting stability of the scissor lift platform 4, vertical grooves 8 can be opened on the two uprights of the second frame 5 near the scissor lift platform 4, and guide sliders 9 can be installed on the edge of the horizontal pedal 4.3, sliding up and down along the vertical grooves 8. The sliding of the guide sliders 9 along the vertical grooves 8 guides the horizontal pedal 4.3, making the up and down lifting of the horizontal pedal 4.3 more stable. Furthermore, a tool box 10 can be installed on the top of the second frame 5, allowing workers to conveniently and quickly retrieve materials or tools when assembling parts while standing on the horizontal pedal 4.3.

[0018] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0019] In this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature.

Claims

1. A lifting and moving platform for an automobile assembly line, characterized in that: The system includes a first frame with stabilizing legs at the bottom. A scissor lift platform, capable of vertical lifting, is connected to the first frame via a pair of parallel slide rails. The scissor lift platform consists of an X-shaped fork, an electric hydraulic cylinder that drives the X-shaped fork to lift, and a horizontal pedal connected to the X-shaped fork. The top of the X-shaped fork has a first lifting end and a second lifting end that lift synchronously. The first lifting end is hinged to the bottom surface of the horizontal pedal, and the second lifting end is slidably connected to the bottom surface of the horizontal pedal via a horizontal sliding assembly. A second frame extending vertically upward is connected to the first frame located on one side of the horizontal pedal. The bottom of the second frame is flush with the bottom of the first frame, and its top is higher than the maximum lifting height of the horizontal pedal. A push-pull handrail is provided on the side of the top of the second frame away from the horizontal pedal. A pair of directional casters are provided at the bottom of the second frame directly below the push-pull handrail, and the bottom surface of the directional casters is higher than the bottom surface of the stabilizing legs.

2. The lifting and moving platform for an automobile assembly line according to claim 1, characterized in that: Both the first frame and the second frame are rectangular frames, and the stabilizing legs are in four groups, evenly distributed at the four corners of the bottom surface of the first frame.

3. The lifting and moving platform for the automobile assembly line according to claim 2, characterized in that: The first frame and the second frame have the same width, both being 350mm.

4. The lifting and moving platform for an automobile assembly line according to claim 2, characterized in that: The second frame has vertical grooves on the two uprights near the scissor lift platform, and the horizontal pedal is provided with a guide slider that slides up and down along the vertical grooves.

5. The lifting and moving platform for an automobile assembly line according to claim 1, characterized in that: The horizontal sliding assembly includes a horizontal sliding groove fixed to the bottom surface of the horizontal pedal, a reciprocating guide wheel being fitted inside the horizontal sliding groove, and the guide wheel being hinged to the second lifting end of the X-shaped fork.

6. The lifting and moving platform for an automobile assembly line according to claim 1, characterized in that: A tool box is provided at the top of the second frame.