Automobile maintenance trailer frame convenient to adjust

Abstract

The utility model relates to the field of automobile maintenance devices, and discloses an automobile maintenance trailer frame convenient to adjust, which comprises a bottom frame and a supporting arm, hydraulic rods are fixedly connected to two sides of the bottom frame, a first sliding rail is fixedly connected to the top of each hydraulic rod, and a first sliding block is slidably connected to the outer wall of each first sliding rail. A telescopic assembly is installed on the outer wall of the first sliding block, a third sliding groove is formed in the top of the supporting arm, and a fine adjustment assembly is installed in the third sliding groove. The first sliding block is slidably connected to the top of the first sliding rail and matched with the telescopic assembly, so that hauling of vehicles of different sizes is achieved, universality is improved, meanwhile, the bearing block is driven to slide along the inner wall of the sliding rail at the top of the supporting arm by means of rotation of a screw in the fine adjustment assembly assembled at the top of the supporting arm, and after the position of the bearing block is accurately adjusted, the supporting arm is fixed. Nuts on the outer sides of the screws are used for fixing, so that frequent moving of the trailer frame is avoided, unnecessary operation is reduced, and working efficiency is improved.

Description

An easily adjustable car repair trailer rack Technical Field

[0001] This utility model relates to the field of automobile repair equipment, and in particular to an easily adjustable automobile repair trailer frame. Background Technology

[0002] In the field of automotive repair equipment, trailer racks have long played an indispensable role as a key auxiliary tool. However, traditional trailer racks have many limitations in design and function, making it difficult to meet the diverse and sophisticated needs of modern automotive repair work.

[0003] From an overall structural perspective, some traditional trailer frames adopt a fixed structure, and their size and shape cannot be easily changed after manufacturing. This design greatly reduces the versatility of the trailer frame when facing vehicles of different models and sizes. Most traditional trailer frames cannot be adjusted for some small distances, which increases the difficulty and time required for operation. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an easily adjustable car repair trailer frame. This frame utilizes a first slider, slidably connected to a first slide rail at the top, in conjunction with a telescopic component to enable the towing of vehicles of different sizes, improving compatibility. Simultaneously, the rotation of the screw in the micro-adjustment component at the top of the support arm allows the load-bearing block to slide along the inner wall of the slide rail, achieving fine-tuning of its position. This is further secured by a nut on the outer wall of the screw, reducing unnecessary trailer frame position adjustments and improving work efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An easily adjustable car repair trailer frame includes: a base frame and a support arm. Hydraulic rods are fixedly connected to both sides of the base frame. A first slide rail is fixedly connected to the top of the hydraulic rods. A first slider is slidably connected to the outer wall of the first slide rail. A telescopic component is installed on the outer wall of the first slider. A third slide groove is formed at the top of the support arm. A fine-tuning component is installed inside the third slide groove. A fourth slide groove is formed inside the base frame. A fourth slider is slidably connected between the fourth slide grooves.

[0007] Furthermore, the telescopic assembly includes a support arm fixedly connected to the outer wall of the first slider, and a second sliding groove is provided inside the support arm, with a second slider slidably connected between the second sliding grooves.

[0008] Furthermore, the support arm has first mounting holes on both sides, and a mounting rod is provided inside the first mounting hole. The mounting rod passes through the first mounting hole and the second slider.

[0009] Furthermore, the fine-tuning component includes a third slider that is slidably connected inside the third groove, a support block that is fixedly connected to the top of the third slider, a screw that is threadedly connected to the inner wall of the top of the first slider, and the front end of the screw that is rotatably connected to the outer wall of the support block.

[0010] Furthermore, a nut is threaded onto the outer wall of the screw, and the nut is installed between the bearing block and the first slider.

[0011] Furthermore, a second mounting hole is provided inside the first slide rail, and a fixing hole is provided on the outer wall of the first slider. A mounting rod is inserted through the second mounting hole and the fixing hole respectively.

[0012] Furthermore, a stabilizing block is fixedly connected to the inner wall of the first slider, and a groove is provided at the bottom of the first slide rail, with the stabilizing block slidably connected to the inner wall of the groove.

[0013] Furthermore, a tie rod is rotatably connected to the outer wall of the base frame, and a pulley is fixedly connected to the bottom of the base frame.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the length and width of the device can be changed by the cooperation between the first slider, which is slidably connected to the first slide rail at the top, and the telescopic component, thereby enabling the towing of vehicles of different sizes and improving the compatibility of the device.

[0016] 2. In this utility model, the screw installed on the fine-tuning component at the top of the support arm rotates, causing the bearing block to slide on the inner wall of the slide rail at the top of the support arm, thereby achieving fine-tuning of the position of the bearing block. Then, the screw is locked by the nut on the outer wall of the screw, eliminating the need to repeatedly adjust the position of the trailer frame, reducing unnecessary operations, and improving work efficiency. Attached Figure Description

[0017] Figure 1 is a perspective view of an easily adjustable car repair trailer frame proposed in this utility model;

[0018] Figure 2 is a cross-sectional view of an easily adjustable telescopic assembly for an automotive repair trailer frame proposed in this utility model;

[0019] Figure 3 is a cross-sectional view of an easily adjustable car repair trailer frame proposed in this utility model;

[0020] Figure 4 is a cross-sectional view of a fine-tuning component for an easily adjustable car repair trailer frame proposed in this utility model.

[0021] Legend:

[0022] 1. Base frame; 2. First slide rail; 3. First slider; 4. Bearing block; 5. Support arm; 6. Screw; 7. Pulley; 8. Hydraulic rod; 9. Mounting rod; 10. First mounting hole; 11. Second slider; 12. Second slide groove; 13. Second mounting hole; 14. Fixing hole; 15. Third slider; 16. Stabilizing block; 17. Third slide groove; 18. Nut; 19. Groove; 20. Fourth slide groove; 21. Fourth slider; 22. Pull rod. Detailed Implementation

[0023] 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.

[0024] Referring to Figures 1-4, one embodiment of this utility model provides an easily adjustable car repair trailer frame, comprising: a base frame 1 and a support arm 5. Hydraulic rods 8 are fixedly connected to both sides of the base frame 1. Hydraulic oil is drawn from the oil tank and pressurized by an electric hydraulic pump, then the high-pressure hydraulic oil is delivered to the hydraulic cylinder, pushing the piston to move, thereby extending or retracting the rod. A first slide rail 2 is fixedly connected to the top of the hydraulic rod 8, and a first slider 3 is slidably connected to the outer wall of the first slide rail 2. A telescopic component is installed on the outer wall of the first slider 3. A third slide groove 17 is formed at the top of the support arm 5, and a fine-tuning component is installed inside the third slide groove 17. A fourth slide groove 20 is formed inside the base frame 1 on both sides. A fourth slider 21 is slidably connected between the two slide rails. The base frame 1 is designed to distribute the force evenly across the entire bottom surface. A second mounting hole 13 is provided inside the first slide rail 2. A fixing hole 14 is provided on the outer wall of the first slider 3. The second mounting hole 13 and the fixing hole 14 are on the same horizontal plane. Mounting rods 9 are inserted through the interior of the second mounting hole 13 and the fixing hole 14 respectively. A stabilizing block 16 is fixedly connected to the inner wall of the first slider 3. A groove 19 is provided at the bottom of the first slide rail 2. The stabilizing block 16 is slidably connected to the inner wall of the groove 19. The stabilizing block 16 slides on the inner wall of the groove 19. This structural design makes the force evenly distributed on the outer wall of the first slide rail 2. A pull rod 22 is rotatably connected to the outer wall of the base frame 1. A pulley 7 is fixedly connected to the bottom of the base frame 1.

[0025] Specifically, in use, the first slider 3 on the first slide rail 2 is slid to bring the support arm 5 between the two ends of the first slider 3 to the appropriate position. When the hole on the first slider 3 corresponds to the second mounting hole 13, the mounting rod 9 is inserted and fixed for longitudinal adjustment. Then, the telescopic component is used to adjust the lateral width of the equipment. At the same time, the fourth slider 21 sliding inside the fourth slide groove 20 on the base frame 1 will also slide and telescopic to achieve compatibility with different vehicles. After the adjustment is completed, the equipment is inserted into the bottom of the vehicle to be towed through the pulley 7. Then, the position of the fine-tuning component at the top of the support arm 5 is adjusted, the hydraulic rod 8 is started, the hydraulic pump works, the hydraulic oil is pressurized and input into the hydraulic cylinder, pushing the piston upward, causing the rod to extend and lift the entire upper device upward. The upper bearing block 4 supports the bottom beam of the vehicle, lifting the vehicle. Then, the vehicle is moved by pulling the pull rod 22.

[0026] Referring to Figures 1 and 2, the outer wall of the first slider 3 is fixedly connected to the support arm 5. The inside of the support arm 5 on both sides is provided with a second slide groove 12. The second slider 11 is slidably connected between the second slide grooves 12 on both sides. The support arm 5 is provided with a first mounting hole 10 on both sides. The first mounting hole 10 is provided with a mounting rod 9 inside. The mounting rod 9 passes through the first mounting hole 10 and the inside of the second slider 11 to fix the support arm 5 so that it will not move.

[0027] Specifically, by pulling the first slide rail 2 on one side, the second slider 11 slides on the inner wall of the second slide groove 12 opened in the support arm 5, causing it to extend and retract. When it reaches the desired position, the mounting rod 9 is inserted into the first mounting hole 10, so that it passes through the hole opened in the second slider 11, thereby fixing the device.

[0028] Referring to Figures 1 and 4, the third slide 17 is internally connected to the third slider 15, the top of the third slider 15 is fixedly connected to the bearing block 4, the top inner wall of the first slider 3 is threadedly connected to the screw 6, the front end of the screw 6 is rotatably connected to the outer wall of the bearing block 4, and the outer wall of the screw 6 is threadedly connected to the nut 18, which is installed between the bearing block 4 and the first slider 3.

[0029] Specifically, by rotating the screw 6, the bearing block 4, which is rotatably connected to its front end, moves along the third slide groove 17. When it reaches the desired position, the rotation stops. Then, the nut 18, which is threaded onto the screw 6, is rotated to prevent the fine-tuning assembly from displacing in the direction of the first slider 3.

[0030] Working principle: In use, firstly, slide the first slider 3 on the first slide rail 2 so that the support arm 5 between the two ends of the first slider 3 reaches the appropriate position. When the fixing hole 14 on the first slider 3 is aligned with the second mounting hole 13 on the first slide rail 2, insert the mounting rod 9 to fix it, completing the longitudinal adjustment. Then, the equipment is adjusted laterally by the telescopic component. At the same time, the fourth slider 21 sliding in the fourth slide groove 20 on the base frame 1 will also slide and extend to adapt to different vehicle sizes. After the adjustment is completed, the equipment is moved to the underside of the vehicle to be towed by the pulley 7 at the bottom of the base frame 1. Then, by rotating the screw 6, the bearing block 4 rotatably connected to it moves along the third slide groove 17 at the top of the support arm 5. After precisely adjusting the position of the bearing block 4, and fixing it by rotating the nut 18 on the outer wall of the screw 6 to prevent it from shifting towards the first slider 3, start the hydraulic rod 8 to lift the entire upper device upward. The top of the bearing block 4 supports the bottom beam of the vehicle, lifting the vehicle. Finally, pull the tie rod 22 on the outer wall of the chassis 1 to move the vehicle under the action of the pulley 7, completing the towing work. After the towing is completed, the hydraulic pump stops working, and the hydraulic oil flows back to the oil tank through the control valve. The piston retracts under its own weight or external action, and the rod shortens accordingly, realizing the smooth descent of the vehicle. The hydraulic rod 8 is lowered, and the vehicle is placed smoothly on the ground. Loosen the nut 18, restore all components to their initial positions, disconnect the power, clean and properly store the trailer frame.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automotive service dolly that facilitates adjustment, characterized by, include: The base frame (1) and the support arm (5) are provided. Hydraulic rods (8) are fixedly connected to both sides of the base frame (1). A first slide rail (2) is fixedly connected to the top of the hydraulic rods (8). A first slider (3) is slidably connected to the outer wall of the first slide rail (2). A telescopic component is installed on the outer wall of the first slider (3). A third slide groove (17) is opened at the top of the support arm (5). A fine adjustment component is installed inside the third slide groove (17). A fourth slide groove (20) is opened inside the base frame (1). A fourth slider (21) is slidably connected between the fourth slide grooves (20).

2. The adjustable vehicle service trailer frame of claim 1, wherein: The telescopic assembly includes a support arm (5) fixedly connected to the outer wall of the first slider (3), and a second slide groove (12) is provided inside the support arm (5), and a second slider (11) is slidably connected between the second slide grooves (12).

3. The easily adjustable car repair trailer frame according to claim 2, characterized in that: The support arm (5) has first mounting holes (10) on both sides. A mounting rod (9) is provided inside the first mounting hole (10). The mounting rod (9) passes through the first mounting hole (10) and the second slider (11).

4. The adjustable vehicle service trailer frame of claim 1, wherein: The fine-tuning component includes a third slider (15) slidably connected inside the third slide groove (17), a bearing block (4) is fixedly connected to the top of the third slider (15), and a screw (6) is threadedly connected to the inner wall of the top of the first slider (3), and the front end of the screw (6) is rotatably connected to the outer wall of the bearing block (4).

5. The easily adjustable car repair trailer frame according to claim 4, characterized in that: The screw (6) has a nut (18) threadedly connected to its outer wall. The nut (18) is installed between the bearing block (4) and the first slider (3).

6. The easily adjustable car repair trailer frame according to claim 1, characterized in that: The first slide rail (2) has a second mounting hole (13) inside, and the first slider (3) has a fixing hole (14) on its outer wall. The second mounting hole (13) and the fixing hole (14) are respectively provided with mounting rods (9).

7. The easily adjustable car repair trailer frame according to claim 1, characterized in that: The inner wall of the first slider (3) is fixedly connected to a stabilizing block (16), and the bottom of the first slide rail (2) is provided with a groove (19), and the stabilizing block (16) is slidably connected to the inner wall of the groove (19).

8. The easily adjustable car repair trailer frame according to claim 1, characterized in that: A tie rod (22) is rotatably connected to the outer wall of the base frame (1), and a pulley (7) is fixedly connected to the bottom of the base frame (1).

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