Foldable convenient structure for disassembling and assembling trolley at vehicle bottom

The design of the foldable undercarriage disassembly trolley solves the problems of large space occupation and complicated operation of traditional undercarriage maintenance trolleys, achieving flexible storage and stable operation.

CN223889991UActive Publication Date: 2026-02-10YANCHENG HAINUOSI AUTOMATION EQUIP CO LTD
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Patent Information

Application Number
CN202520563404.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-27
Publication Date
2026-02-10
Estimated Expiration
2035-03-27

AI Technical Summary

Technical Problem

Traditional undercarriage inspection trolleys have a fixed structure, occupy a large space, and are complex to install and disassemble, increasing operation time and costs.

Method used

A foldable undercarriage disassembly trolley was designed. Through the combination of hinged adjustment grooves and T-shaped grooves with T-shaped strips, along with inclined blocks and elastic components, tool-free folding and unfolding can be achieved, ensuring stability in the working state.

Benefits of technology

It reduces storage space requirements, improves operational flexibility and safety, ensures stability and safety during operation, and can be folded and unfolded without additional tools.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of trolleys for vehicle bottom maintenance, in particular to a foldable vehicle bottom dismounting trolley convenient structure which comprises a trolley body, an adjusting groove is formed in the trolley body, the two sides of the adjusting groove are connected through a hinge, T-shaped grooves and a fastening groove are formed in one side of the trolley body, the two T-shaped grooves are symmetrically arranged, and the fastening groove is connected with the two T-shaped grooves. A T-shaped groove is formed in the middle of the vehicle body, a T-shaped strip is arranged on the T-shaped groove, pulleys are arranged at the bottom end of the T-shaped strip, the number of the pulleys is two, a fixing groove is formed between the fastening groove and the interior of the vehicle body, and fastening holes are formed between the fixing groove and the two T-shaped grooves. The device is particularly important for a working environment with limited space, so that the device is more flexible and convenient to store, and the whole folding and unfolding process can be completed without any tool.
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Description

Technical Field

[0001] This utility model relates to the technical field of trolleys for undercarriage inspection, specifically a convenient structure for a foldable trolley for disassembling and assembling undercarriage. Background Technology

[0002] As is well known, in the process of automobile repair and maintenance, technicians need to enter the underside of the vehicle to perform various operations, such as inspection, repair, or replacement of parts. Traditionally, this usually requires the use of specially designed undercarriage inspection trolleys to assist in the work. Most traditional trolleys have a fixed structure and cannot be folded, resulting in them occupying a large storage space. For repair shops with limited space, this is undoubtedly a great challenge. In order to ensure the stability and safety of the trolley during use, many bolts and other parts are often needed to fix the position of the vehicle body. Additional tools are required to complete the installation or disassembly, which increases the time cost and complexity of the operation. Therefore, it is necessary to propose a solution to this technical problem. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a convenient structure for a foldable, detachable, and removable vehicle chassis.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a convenient structure for a foldable, detachable, and removable trolley, comprising a trolley body, an adjustment groove on the trolley body, a hinge connecting the two sides of the adjustment groove, a T-shaped groove and a fastening groove on one side of the trolley body, two T-shaped grooves symmetrically arranged, a T-shaped strip on the T-shaped groove, and two pulleys at the bottom end of the T-shaped strip, a fixing groove between the fastening groove and the interior of the trolley body, a fastening hole between the fixing groove and the two T-shaped grooves, a slot on the T-shaped strip, an inclined block between the slot and the fastening hole, an adjustment plate on the inclined block, an elastic component connecting the two adjustment plates, a fastening plate on the fastening groove, a limiting block between the fastening plate and the fixing groove, a conical groove at one end of the fastening plate, and a guide mechanism between the fixing groove and the two adjustment plates.

[0007] Furthermore, the present invention is improved in that the guiding mechanism includes a guiding groove and a guiding block, the guiding groove is formed at the bottom end of the fixed groove, and the guiding block is installed at the bottom end of the two adjusting plates and located in the guiding groove.

[0008] Furthermore, the present invention is improved in that both the guide groove and the guide block are T-shaped structures.

[0009] Furthermore, an improvement of this utility model is that a handle is provided at one end of the fastening plate.

[0010] Furthermore, the present invention is improved in that the limiting blocks are provided in two symmetrical arrangements.

[0011] Furthermore, an improvement of this utility model is that the elastic component is an alloy spring.

[0012] Furthermore, an improvement of this utility model is that the pulley is a universal wheel.

[0013] Furthermore, the present invention is improved by providing a wheel lock on the pulley.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a convenient structure for a foldable, detachable vehicle chassis, which has the following advantages:

[0016] This foldable, modular trolley features a convenient structure. When not in use, the trolley body can be folded up via hinges, significantly reducing the space required for storage. This is especially important in space-constrained work environments, making equipment storage more flexible and convenient. The entire folding and unfolding process can be completed without any tools. Utilizing a combination of T-slots and T-bars, along with inclined blocks and elastic components, ensures the trolley body's stability in the unfolded state. Even when subjected to shaking or other external forces during operation, it maintains its position, providing a stable platform for maintenance work. The support force provided by the elastic components to the inclined blocks ensures the stability of the T-bars in the slots, avoiding safety risks caused by accidental loosening. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present utility model. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the structure of the present utility model. Figure 2 ;

[0019] Figure 3 This is a top half-sectional view of the structure of this utility model;

[0020] Figure 4 This is a frontal half-sectional view of the structure of this utility model.

[0021] In the diagram: 1. Vehicle body; 2. Hinge; 3. T-bar; 4. Pulley; 5. Inclined block; 6. Adjusting plate; 7. Elastic component; 8. Fastening plate; 9. Limiting block; 10. Conical groove; 11. Guide groove; 12. Guide block; 13. Handle. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-4 This utility model relates to a convenient structure for a foldable, detachable, and removable trolley, comprising a vehicle body 1. The vehicle body 1 has an adjustment groove, and a hinge 2 connects the two sides of the adjustment groove. One side of the vehicle body 1 has a T-shaped groove and a fastening groove. Two T-shaped grooves are provided and symmetrically arranged. A T-shaped strip 3 is provided on each T-shaped groove, and two pulleys 4 are provided at the bottom of each T-shaped strip 3. A fixing groove is provided between the fastening groove and the interior of the vehicle body 1. A fastening hole is provided between the fixing groove and the two T-shaped grooves. A locking groove is provided on the T-shaped strip 3, and the locking groove is connected to the fastening hole. An inclined block 5 is provided, and an adjusting plate 6 is provided on the inclined block 5. An elastic component 7 is provided between the two adjusting plates 6. A fastening plate 8 is provided on the fastening groove, and a limiting block 9 is provided between the fastening plate 8 and the fixing groove. A conical groove 10 is opened at one end of the fastening plate 8. A guide mechanism is provided between the fixing groove and the two adjusting plates 6. In this embodiment, when it is needed, the vehicle body 1 is folded and rotated by the hinge 2 of the adjusting groove, so that the vehicle body 1 is unfolded and the T-shaped grooves at both ends of the vehicle body 1 are aligned. Then, the personnel insert the T-shaped strip 3 into the T-shaped groove, so that the inclined block 5 is squeezed and moved by the T-shaped strip 3. When the T-shaped strip 3 is inserted into the T-shaped groove, the inclined block 5 is squeezed and moved by the T-shaped strip 3. After insertion into the T-slot, the elastic support force of the elastic component 7 on the two adjusting plates 6 aligns the inclined block 5 and abuts against the slot opened on the T-slot 3, thus securing the T-slot 3 in the T-slot. The T-slot 3 passing through the T-slot of the vehicle body 1 ensures that the vehicle body 1 maintains a horizontal angle without angular deviation. The two pulleys 4 on the two T-slots 3 allow the vehicle body 1 to move smoothly on the ground, facilitating easy movement of the vehicle body 1 under the vehicle for maintenance and repair. Furthermore, the elastic support force of the elastic component 7 on the inclined block 5 ensures the stability of the inclined block. 5. Stable and securely held in the slot, maintaining its firmness and reliability even under shaking or other conditions. When not in use and stored to reduce space occupation, by pushing the fastening plate 8, the fastening plate 8 moves from the fastening groove to the fixing groove. The fastening plate 8 contacts and pushes the two inclined blocks 5 through the conical groove 10, thereby squeezing the inclined blocks 5 and generating lateral thrust to move them away from the slot. This causes the elastic component 7 to be squeezed and deformed by the two adjusting plates 6. Then, the person pulls the T-shaped strip 3 away from the T-shaped groove, and the vehicle body 1 is folded through the hinge 2, thereby reducing the space occupied for storage. Folding and use can be completed without the use of any tools.

[0024] In this scheme, the guiding mechanism includes a guide groove 11 and a guide block 12. The guide groove 11 is formed at the bottom end of the fixed groove, and the guide block 12 is installed at the bottom end of the two adjusting plates 6 and located in the guide groove 11. When the adjusting plates 6 move, they drive the guide block 12 to move. The guide block 12 moves linearly in the guide groove 11, thereby enabling the adjusting plates 6 to move more stably in the fixed groove, thereby further ensuring the stable linear movement of the inclined block 5.

[0025] In this design, both the guide groove 11 and the guide block 12 are T-shaped. The T-shaped guide groove 11 and guide block 12 can improve the linear movement stability of the guide block 12 in the guide groove 11.

[0026] In this solution, a handle 13 is provided at one end of the fastening plate 8, which makes it easy to grip and push the fastening plate 8.

[0027] In this solution, there are two limiting blocks 9 arranged symmetrically. By having two limiting blocks 9 arranged symmetrically, the fastening plate 8 can be more stably limited.

[0028] In this design, the elastic component 7 is an alloy spring, which has the characteristic of good elastic support, thereby improving the elastic support stability of the two adjusting plates 6.

[0029] In this design, the pulley 4 is a swivel wheel, which allows for more flexible movement of the vehicle body 1, facilitating easy repositioning in the limited space under the vehicle.

[0030] In this solution, the pulley 4 is equipped with a wheel lock, which can easily lock the pulley 4, thereby locking the vehicle body 1 so that it will not move.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A foldable, easily detachable cart structure, comprising a cart body (1), wherein an adjustment groove is provided on the cart body (1), and a hinge (2) is provided between the two sides of the adjustment groove, characterized in that, The vehicle body (1) has a T-shaped groove and a fastening groove on one side. There are two T-shaped grooves arranged symmetrically. A T-shaped strip (3) is provided on the T-shaped groove. A pulley (4) is provided at the bottom end of the T-shaped strip (3). There are two pulleys (4). A fixing groove is provided between the fastening groove and the interior of the vehicle body (1). A fastening hole is provided between the fixing groove and the two T-shaped grooves. A slot is provided on the T-shaped strip (3). An inclined block (5) is provided between the slot and the fastening hole. An adjusting plate (6) is provided on the inclined block (5). An elastic component (7) is provided between the two adjusting plates (6). A fastening plate (8) is provided on the fastening groove. A limiting block (9) is provided between the fastening plate (8) and the fixing groove. A conical groove (10) is provided at one end of the fastening plate (8). A guide mechanism is provided between the fixing groove and the two adjusting plates (6).

2. The foldable undercarriage disassembly and assembly trolley convenient structure according to claim 1, characterized in that, The guiding mechanism includes a guide groove (11) and a guide block (12). The guide groove (11) is opened at the bottom end of the fixed groove, and the guide block (12) is installed at the bottom end of the two adjusting plates (6) and located in the guide groove (11).

3. The foldable undercarriage assembly / disassembly trolley convenient structure according to claim 2, characterized in that, Both the guide groove (11) and the guide block (12) have a T-shaped structure.

4. The foldable undercarriage disassembly and assembly trolley convenient structure according to claim 3, characterized in that, One end of the fastening plate (8) is provided with a handle (13).

5. The foldable undercarriage disassembly and assembly trolley convenient structure according to claim 4, characterized in that, The limiting block (9) is provided in two symmetrical positions.

6. The foldable undercarriage disassembly and assembly trolley convenient structure according to claim 5, characterized in that, The elastic component (7) is an alloy spring.

7. The foldable undercarriage disassembly and assembly trolley convenient structure according to claim 6, characterized in that, The pulley (4) is a universal wheel.

8. The foldable undercarriage disassembly and assembly trolley convenient structure according to claim 7, characterized in that, The pulley (4) is equipped with a wheel lock.