Automobile towing bracket with adjustable height
By designing an adjustable-height car trailer and utilizing a structure of crossbeams, support columns, and T-slots, adaptive positioning and transportation for different car models are achieved, improving the trailer's versatility and reducing production costs.
Patent Information
- Application Number
- CN202521294310.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-24
- Publication Date
- 2026-05-01
- Estimated Expiration
- 2035-06-24
AI Technical Summary
The positioning structure of existing car trailers cannot be adjusted, which means that they can only be positioned and transported for a certain type of car model, affecting the versatility of the car body transport trailer and increasing production costs.
An adjustable-height car trailer was designed. By setting up crossbeams, support columns, and T-slots, and utilizing the connection characteristics between the crossbars and the frame, a stable connection between the support columns, crossbars, and frame is achieved. The height of the crossbeams can be adjusted by adjusting the columns and buffer components to adapt to different car body sizes.
It improves the efficiency of car trailer usage and reduces equipment operating costs. It is suitable for different car models and avoids damage to the vehicle body and increased production costs.
Smart Images

Figure CN224184390U_ABST
Abstract
Description
An adjustable height car trailer Technical Field
[0001] This utility model relates to the field of car trailer technology, and in particular to a height-adjustable car trailer. Background Technology
[0002] Cars shipped as disassembled parts typically do not have engines, front and rear axles, tires, or other components installed on the body, depending on customer requirements. During normal assembly on the assembly line, the front and rear wheels are often used for alignment. Therefore, when assembling other parts without these components, specialized devices are needed to position the car body before assembly. Furthermore, after the car body with only some parts assembled rolls off the assembly line, it needs to be transported to the packaging line using specialized equipment or tools for packaging. During packaging, it must be moved to a specialized packaging positioning device. This process not only requires significant manpower and resources to manufacture and use specialized assembly, transportation, and packaging positioning devices, but also easily damages car body parts due to repeated loading, unloading, and installation processes, thus affecting product quality, increasing costs, and reducing production efficiency.
[0003] For example, a patent entitled "An Automobile Body Transport Trailer" (patent application number: CN200920308499.7) discloses an automobile body transport trailer, including a front trailer located at the front bottom of the vehicle body and a rear trailer located at the rear bottom of the vehicle body. The bottom of the front trailer is provided with a steering wheel, and the bottom of the rear trailer is provided with a directional wheel. The vehicle body is suspended between the front trailer and the rear trailer. This structure is simple and lightweight, can be positioned on the assembly line, and can be easily transported to the packaging line after it comes off the assembly line, improving efficiency. However, the positioning structure in this device cannot be adjusted. This structure can only be positioned and transported for a certain vehicle model, which seriously affects the versatility of the vehicle body transport trailer and the production cost in the automobile production process.
[0004] Therefore, it is necessary to propose an adjustable-height car trailer to solve the above problems. Summary of the Invention
[0005] The purpose of this invention is to provide an adjustable-height car trailer to solve the problem that the positioning structure in the device cannot be adjusted, and this structure can only be used for positioning and transportation of a certain car model. This seriously affects the versatility of the car body transport trailer and the production cost in the car production process.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an adjustable height car trailer, including a rear frame, a frame fixedly connected to the top of the rear frame, and a crossbar fixedly connected inside the frame, wherein multiple crossbars are provided and the multiple crossbars are evenly distributed;
[0007] A crossbeam is provided above the frame, and support components are provided on both sides of the crossbeam. Each support component includes a support column, and a T-shaped groove is provided at the bottom of the support column. The support column is inserted into the connection between the crossbeam and the frame through the T-shaped groove. A sliding groove is provided at the top of the support column, and an adjusting column is slidably arranged inside the sliding groove. The adjusting column is connected to the crossbeam through a buffer component.
[0008] Preferably, the buffer assembly includes a support plate, a fixed plate, and a damping element. The support plate is fixedly connected to the crossbeam, the fixed plate is fixedly connected to the side wall of the adjusting column, the top end of the damping element is fixedly connected to the support plate, and the bottom end of the damping element is fixedly connected to the fixed plate.
[0009] Preferably, there are two crossbeams.
[0010] Preferably, the adjusting column has a through groove that extends through the upper and lower surfaces of the adjusting column, and a threaded rod is rotatably connected inside the through groove. The bottom end of the sliding groove has a threaded groove that mates with the threaded rod.
[0011] Preferably, a rotating block is fixedly connected to the top of the threaded rod.
[0012] Preferably, an annular groove is formed on the inner wall of the through groove, and an annular block is fixedly connected to the outside of the threaded rod, the annular block being rotatably connected inside the annular groove.
[0013] Preferably, an extension plate is fixedly connected to both sides of the support column.
[0014] Preferably, a moving mechanism is provided at the bottom of the rear frame, and the front frame is connected to the rear frame.
[0015] The technical effects and advantages of this utility model are as follows:
[0016] This utility model cleverly utilizes the connection characteristics between the crossbar and the frame by setting up structures such as crossbeams, support columns, and T-slots to improve the stability of the connection between the support column and the crossbar and frame. It also uses the weight of the vehicle body to position the support column at the connection point between the crossbar and the frame. At the same time, the distance between the two crossbeams and the height of the crossbeams can be flexibly adjusted to improve the efficiency of the car trailer. Attached Figure Description
[0017] Figure 1 is a first-view structural schematic diagram of the adjustable-height car trailer of this utility model.
[0018] Figure 2 is a second-view structural schematic diagram of the adjustable-height car trailer of this utility model.
[0019] Figure 3 is a third-view structural diagram of the adjustable-height car trailer of this utility model.
[0020] Figure 4 is a schematic diagram of the support column and adjustment column structure of this utility model.
[0021] Figure 5 is a schematic diagram of the support column and T-groove structure of this utility model.
[0022] In the diagram: 1. Rear frame; 2. Moving mechanism; 3. Front frame; 4. Frame; 5. Crossbar; 6. Support plate; 7. Support column; 8. T-slot; 9. Adjusting column; 10. Slide groove; 11. Through groove; 12. Threaded rod; 13. Threaded groove; 14. Rotating block; 15. Ring groove; 16. Ring block; 17. Crossbeam; 18. Fixing plate; 19. Damping component; 20. Extension plate. Detailed Implementation
[0023] This utility model provides an adjustable height car trailer as shown in Figures 1 to 5, including a rear frame 1, a moving mechanism 2 at the bottom of the rear frame 1, the moving mechanism 2 including wheels and other structures, for assisting the rear frame 1 in moving, and a front frame 3 connected to the rear frame 1, using the front frame 3 to connect to drive a trolley, etc., thereby achieving the effect of moving.
[0024] The top of the rear frame 1 is fixedly connected to a frame 4, and the inside of the frame 4 is fixedly connected to a crossbar 5. There are multiple crossbars 5, and the multiple crossbars 5 are evenly distributed.
[0025] A crossbeam 17 is installed above the frame 4, and there are two crossbeams 17. Support components are installed on both sides of the crossbeam 17, including support columns 7. The bottom end of the support column 7 has a T-shaped groove 8. The support column 7 is inserted into the connection between the crossbar 5 and the frame 4 through the T-shaped groove 8. The T-shaped groove 8 at the bottom end of the support column 7 cleverly utilizes the connection characteristics between the crossbar 5 and the frame 4 to improve the stability of the connection between the support column 7 and the crossbar 5 and the frame 4. Moreover, since there are multiple crossbars 5, the position of the support column 7 is adjustable, thereby adjusting the distance between the two crossbeams 17. The weight of the vehicle body is used to position the support column 7 at the connection between the crossbar 5 and the frame 4. This is suitable for vehicle bodies of different sizes, eliminates the need for a complex positioning structure, and reduces the cost of equipment use.
[0026] Both sides of the support column 7 are fixedly connected with extension plates 20. The support column 7 is inserted into the connection between the crossbar 5 and the frame 4 using T-slots 8. The extension plates 20 abut against the frame 4 to form a support structure and improve the stability of the support.
[0027] A groove 10 is provided at the top of the support column 7. An adjusting column 9 is slidably arranged inside the groove 10. The adjusting column 9 is connected to the crossbeam 17 through a buffer assembly. The buffer assembly includes a support plate 6, a fixed plate 18, and a damping element 19. The support plate 6 is fixedly connected to the crossbeam 17, the fixed plate 18 is fixedly connected to the side wall of the adjusting column 9, the top end of the damping element 19 is fixedly connected to the support plate 6, and the bottom end of the damping element 19 is fixedly connected to the fixed plate 18. A spring can be provided to cooperate with the damping element 19 (not shown in the figure). The buffer assembly is set up to provide shock absorption and buffering during the transfer process to avoid damage to the vehicle body.
[0028] An adjusting column 9 has a through groove 11 that extends through both the upper and lower surfaces. A threaded rod 12 is rotatably connected inside the through groove 11. The bottom end of the sliding groove 10 has a threaded groove 13 that mates with the threaded rod 12. An annular groove 15 is formed on the inner wall of the through groove 11. An annular block 16 is fixedly connected to the outside of the threaded rod 12 and is rotatably connected inside the annular groove 15. The annular groove 15 and the annular block 16 are designed so that the threaded rod 12 can only rotate inside the through groove 11 and cannot move up or down. The friction coefficient between the threaded rod 12 and the threaded groove 13 is suitable, preventing random rotation.
[0029] A rotating block 14 is fixedly connected to the top of the threaded rod 12.
[0030] In actual use, the operator rotates the rotating block 14, which drives the threaded rod 12 to rotate. The threaded rod 12 rises and falls inside the threaded groove 13, which drives the adjusting column 9 to rise and fall synchronously, so as to flexibly adjust the height of the crossbeam 17, which is suitable for different body sizes.
[0031] This utility model, by setting up structures such as crossbeams 17, support columns 7, and T-shaped grooves 8, cleverly utilizes the connection characteristics between the crossbar 5 and the frame 4 to improve the stability of the connection between the support column 7 and the crossbar 5 and frame 4. It also uses the weight of the vehicle body to position the support column 7 at the connection point between the crossbar 5 and the frame 4. At the same time, the distance between the two crossbeams 17 and the height of the crossbeams 17 can be flexibly adjusted to improve the efficiency of the car trailer.
Claims
1. An adjustable-height car trailer, comprising a rear frame (1), characterized in that: The top of the rear frame (1) is fixedly connected to a frame (4), and the inside of the frame (4) is fixedly connected to a crossbar (5). There are multiple crossbars (5), and the multiple crossbars (5) are distributed at equal distances. A crossbeam (17) is provided above the frame (4). Support components are provided on both sides of the crossbeam (17). The support components include a support column (7). A T-shaped groove (8) is provided at the bottom of the support column (7). The support column (7) is inserted into the connection between the crossbar (5) and the frame (4) using the T-shaped groove (8). A sliding groove (10) is provided at the top of the support column (7). An adjusting column (9) is slidably provided inside the sliding groove (10). The adjusting column (9) is connected to the crossbeam (17) through a buffer component.
2. The height-adjustable car trailer according to claim 1, characterized in that: The buffer assembly includes a support plate (6), a fixing plate (18), and a damping element (19). The support plate (6) is fixedly connected to the crossbeam (17), the fixing plate (18) is fixedly connected to the side wall of the adjusting column (9), the top end of the damping element (19) is fixedly connected to the support plate (6), and the bottom end of the damping element (19) is fixedly connected to the fixing plate (18).
3. The adjustable-height car trailer according to claim 1, characterized in that: Two crossbeams (17) are provided.
4. The height-adjustable car trailer according to claim 1, characterized in that: The adjusting column (9) has a through groove (11) that penetrates the upper and lower surfaces of the adjusting column (9). A threaded rod (12) is rotatably connected inside the through groove (11). A threaded groove (13) that mates with the threaded rod (12) is provided at the bottom of the sliding groove (10).
5. The adjustable-height car trailer according to claim 4, characterized in that: The top of the threaded rod (12) is fixedly connected to a rotating block (14).
6. The adjustable-height car trailer according to claim 4, characterized in that: The inner wall of the through groove (11) is provided with an annular groove (15), and the threaded rod (12) is fixedly connected to the outside of an annular block (16), which is rotatably connected inside the annular groove (15).
7. The height-adjustable car trailer according to claim 1, characterized in that: Both sides of the support column (7) are fixedly connected with extension plates (20).
8. The adjustable height car trailer according to claim 1, characterized in that: The bottom of the rear frame (1) is provided with a moving mechanism (2), and the front frame (3) is connected to the rear frame (1).
Citation Information
Patent Citations
Vehicle body transportation carriage
CN201516882U
