Liftable trailer device

By designing a liftable trailer device, which uses a motor-driven bidirectional screw to achieve direct lifting and lowering of the pallet, the problem of equipment wear during trailer transfer is solved, and safe and damage-free equipment transfer is achieved.

CN223546120UActive Publication Date: 2025-11-14WUXI JD MPC CO LTD
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Patent Information

Application Number
CN202422936383.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-29
Publication Date
2025-11-14
Estimated Expiration
2034-11-29

AI Technical Summary

Technical Problem

The lack of a lift-and-lower mechanism on existing trailers makes it easy for the chassis of transported equipment to be worn during the transfer process, especially for vehicles with low chassis.

Method used

A liftable trailer device was designed. The motor drives a bidirectional screw to move the lifting rod and slider up and down in the vertical slot, realizing the direct lifting and lowering function of the pallet and adjusting it to the state of minimum height difference with the transported equipment.

Benefits of technology

Equipment can be safely and effectively transferred to trailers without the need for hoisting equipment, avoiding wear and tear during the transfer process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a liftable trailer device which comprises two stand columns, the number of the stand columns is two, the opposite bottom edges of the two stand columns are fixedly connected with a supporting beam, a bottom groove is formed in the middle of the side wall of the top of the supporting beam, a vertical groove is formed in the middle of the opposite side walls of the two stand columns, the vertical groove is communicated with the bottom groove, and two lifting rods are arranged in the bottom groove. The lifting device has the advantages that the motor is started to drive the two-way screw to rotate, the movable block is driven to move along the bottom groove according to the threaded connection principle, the lifting rod is driven to move along with movement of the bottom groove, and therefore the sliding block is driven to ascend and descend in the vertical groove; the supporting plate can be driven to ascend and descend synchronously along with ascending and descending of the sliding block, so that the vertical ascending and descending function of the supporting plate is achieved, the height of the supporting plate is lowered to the minimum, it is guaranteed that the height difference between the supporting plate and transported equipment is in the minimum state, and the transported equipment does not need to be placed on the supporting plate through hoisting equipment.
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Description

Technical Field

[0001] This utility model relates to the technical field of a trailer lifting device, specifically to a liftable trailer device. Background Technology

[0002] A trailer is a device used for transporting goods. There are many types of trailers on the market now. Some are connected to the vehicle body, while others are attached to the vehicle body. The vehicle or equipment to be transported is transferred to the trailer, and then it can be transported to the designated location. It is one of the most commonly used transportation devices.

[0003] No trailer has a direct lifting and lowering device. Since the height of the trailer is generally higher than the equipment being transported, the equipment needs to be lifted onto the trailer with additional suspension. When the equipment being transported is a vehicle with a low chassis, the process of transferring it to the trailer can easily cause wear and tear on the vehicle body. Therefore, a liftable trailer device is proposed here. Utility Model Content

[0004] The technical solution adopted by this utility model to solve the technical problem is: a liftable trailer device, including columns, two columns, a support beam fixedly connected to the bottom edge sidewalls of the two columns, a bottom groove in the middle of the top sidewall of the support beam, a vertical groove in the middle of the opposite sidewalls of the two columns, the vertical groove and the bottom groove are connected, two lifting rods are provided in the bottom groove, a slider is slidably connected in the vertical groove, a support plate is provided in the middle of the columns, a guide plate is rotatably connected to the lower edge of one end of the support plate, and the end of the guide plate away from the support plate is inclined.

[0005] As a preferred embodiment of this utility model, the slider has side plates fixedly connected to both sides near the bottom end, and the side plates and the slider have a U-shaped structure. One end of the lifting rod is rotatably connected between the two side plates.

[0006] As a preferred embodiment of this utility model, a rotating shaft is embedded in the middle of the top side wall of the slider, one end of the rotating shaft is rotatably connected to the middle of the two side walls of the support plate, and a motor is embedded in the bottom of one of the vertical slots.

[0007] As a preferred technical solution of this utility model, the output end of the motor is detachably connected to a bidirectional screw, and a movable block is threadedly sleeved at both ends of the bidirectional screw. The upper edge of one end of the movable block is rotatably connected to one end of the lifting rod. A limiting post is sleeved at one end of the movable block, and the two ends of the limiting post extend into two vertical grooves and are fixed on their inner walls.

[0008] As a preferred technical solution of this utility model, the side wall of the column away from the support beam is provided with an inlay groove, and a connecting shaft is detachably inlaid in the inlay groove. The connecting shaft is rotatably connected to a roller through its end away from the column.

[0009] This utility model has the following advantages: The starting motor drives the bidirectional screw to rotate, and through the principle of threaded connection, it drives the moving block to move along the bottom groove. As the bottom groove moves, it drives the lifting rod to move, thereby driving the slider to move up and down in the vertical groove. As the slider moves up and down, it drives the pallet to move up and down synchronously, realizing the function of direct lifting and lowering of the pallet. This reduces the height of the pallet to the minimum, ensuring that the height difference between the pallet and the transported equipment is minimized. This eliminates the need to use hoisting equipment to place the transported equipment on the pallet and also avoids problems such as wear and tear on the chassis of the transported vehicle during the transfer process. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural schematic diagram of a preferred embodiment of the present invention;

[0011] Figure 2 This is a partially exploded structural diagram of the support beam according to a preferred embodiment of the present invention;

[0012] Figure 3 This is a schematic diagram of the exploded structure of the column according to a preferred embodiment of the present invention.

[0013] Explanation of reference numerals in the attached drawings: 1. Column; 2. Support beam; 3. Bottom groove; 4. Vertical groove; 5. Lifting rod; 6. Support plate; 7. Guide plate; 8. Roller; 9. Motor; 10. Bidirectional screw; 11. Moving block; 12. Limiting post; 13. Sliding block; 14. Rotating shaft; 15. Side plate; 16. Inlay groove; 17. Connecting shaft. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] Please refer to the following: Figure 1-3 The present invention relates to a liftable trailer device, comprising a column 1, two columns 1, a support beam 2 fixedly connected to the bottom edge sidewalls of the two columns 1, a bottom groove 3 in the middle of the top sidewall of the support beam 2, a vertical groove 4 in the middle of the opposite sidewalls of the two columns 1, the vertical groove 4 communicating with the bottom groove 3, two lifting rods 5 in the bottom groove 3, a slider 13 slidably connected in the vertical groove 4, a support plate 6 in the middle of the column 1, a guide plate 7 rotatably connected to the lower edge of one end of the support plate 6, and the end of the guide plate 7 away from the support plate 6 having an inclined structure.

[0016] Side plates 15 are fixedly connected to both sides of the slider 13 near the bottom. The side plates 15 and the slider 13 have a U-shaped structure. One end of the lifting rod 5 is rotatably connected between the two side plates 15. A motor 9 is embedded in the bottom of one of the vertical slots 4. The output end of the motor 9 is detachably connected to a bidirectional screw 10. A moving block 11 is threaded onto both ends of the bidirectional screw 10. The upper edge of one end of the moving block 11 is rotatably connected to one end of the lifting rod 5. A limit post 12 is sleeved on one end of the moving block 11. The two ends of the limit post 12 extend into the two vertical slots 4 and are fixed on their inner walls.

[0017] The technical effect of this solution is as follows: When lifting and adjustment are required, the motor 9 is started, which drives the bidirectional screw 10 to rotate. Through the principle of threaded connection, the two columns 1 move along the bottom groove 3, thereby driving the lifting rod 5 to move. The movement of the lifting rod 5 drives the slider 13 to rise and fall along the vertical groove 4, thereby driving the pallet 6 connected to the rotating shaft 14 to rise and fall synchronously, thus realizing the function of direct lifting and lowering. According to the state of the transported equipment, the pallet 6 is adjusted to the state with the minimum height difference, so that the transported equipment can be easily placed on the pallet 6 without the need for hoisting equipment. Also, the small height difference can avoid wear and tear on the equipment during vehicle transfer.

[0018] A rotating shaft 14 is inlaid and connected in the middle of the top side wall of the slider 13. One end of the rotating shaft 14 is rotatably connected to the middle of the two side walls of the support plate 6. An inlay groove 16 is opened on the side wall of the column 1 away from the support beam 2. A connecting shaft 17 is detachably inlaid and connected in the inlay groove 16. A roller 8 is rotatably connected to the end of the connecting shaft 17 away from the column 1.

[0019] The technical effect of this solution is as follows: the rotating shaft 14 can drive the pallet 6 to rotate along the rotating shaft 14, thereby adjusting the pallet 6 to an inclined state. Then, the guide plate 7 is unfolded and one end of the guide plate 7 is set in an inclined state, so that one end of the guide plate 7 can fit more tightly with the ground. The inclination of the guide plate 7 makes it easier to transfer the transported equipment to the pallet 6.

[0020] Specifically, when using this utility model, the equipment is moved to a suitable position, the motor 9 is started to drive the bidirectional screw 10 to rotate, thereby driving the moving block 11 to move along the bottom groove 3. As the bottom groove 3 moves, one end of the lifting rod 5 moves, and as the lifting rod 5 moves, the slider 13 moves up and down along the vertical groove 4. Thus, the pallet 6 can be adjusted to different heights as needed, thereby minimizing the height difference between the pallet 6 and the transported equipment. Then, the pallet 6 is rotated and tilted along the rotating shaft 14, and the guide plate 7 is unfolded. The transported equipment is then placed on the pallet 6 along the guide plate 7. After the transported equipment is fixed on the pallet 6, the pallet 6 is adjusted to a suitable transport height as needed. Then, the pallet 6 is connected to the vehicle body, and the equipment can then be transported away.

[0021] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

[0022] All other parts of this utility model that are not described in detail belong to the prior art, and therefore will not be described in detail here.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A liftable trailer device, comprising a column (1), characterized in that, Two columns (1) are provided. A support beam (2) is fixedly connected to the bottom edge sidewall of the two columns (1). A bottom groove (3) is opened in the middle of the top sidewall of the support beam (2). A vertical groove (4) is opened in the middle of the sidewall of the two columns (1). The vertical groove (4) and the bottom groove (3) are connected. Two lifting rods (5) are provided in the bottom groove (3). A slider (13) is slidably connected in the vertical groove (4). A support plate (6) is provided in the middle of the column (1). A guide plate (7) is rotatably connected to the lower edge of one end of the support plate (6). The end of the guide plate (7) away from the support plate (6) is inclined.

2. The liftable trailer device as described in claim 1, characterized in that, The slider (13) has side plates (15) fixedly connected to both sides near the bottom. The side plates (15) and the slider (13) have a U-shaped structure. One end of the lifting rod (5) is rotatably connected between the two side plates (15).

3. The liftable trailer device as described in claim 1, characterized in that, A rotating shaft (14) is embedded in the middle of the top side wall of the slider (13). One end of the rotating shaft (14) is rotatably connected to the middle of the two side walls of the support plate (6). A motor (9) is embedded in the bottom of one of the vertical grooves (4).

4. The liftable trailer device as described in claim 3, characterized in that, The output end of the motor (9) is detachably connected to a bidirectional screw (10). Both ends of the bidirectional screw (10) are threaded with a moving block (11). The upper edge of one end of the moving block (11) is rotatably connected to one end of the lifting rod (5). One end of the moving block (11) is fitted with a limiting post (12). Both ends of the limiting post (12) extend into two vertical grooves (4) and are fixed on their inner walls.

5. A liftable trailer device as described in claim 1, characterized in that, The column (1) has an inlay groove (16) on the side wall away from the support beam (2). A connecting shaft (17) is detachably inlaid in the inlay groove (16). A roller (8) is rotatably connected to the end of the connecting shaft (17) away from the column (1).