Low-flatbed obstacle-removing semitrailer with traction module

By designing a low-flatbed semi-trailer with a traction module and adopting ramp towing technology, the problem of existing recovery vehicles being unable to handle vehicles of different tonnages has been solved, achieving safe and efficient vehicle transfer.

CN223962074UActive Publication Date: 2026-03-03CHINA EVERGRAND COMMERCIAL VEHICLES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-15
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

Existing tow trucks are unable to efficiently handle vehicles of different tonnages at the same time, especially heavy vehicles, and there is a risk of secondary accidents.

Method used

Design a low-flatbed semi-trailer for clearing obstacles with a traction module, including a first frame, a second frame, a lifting module and a traction motor. The vehicle can be loaded by towing on a ramp to avoid secondary accidents and adapt to vehicles of different sizes.

Benefits of technology

It enables the safe towing and transfer of vehicles of different tonnages, improves the efficiency of road emergency rescue, and avoids secondary accidents.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of wrecker equipment, in particular to a low-flat-bed wrecker semitrailer with a traction module, which is characterized in that the traction module is mounted at the front end of a first frame, a second frame is mounted above the first frame, and the second frame can slide along the length direction of the first frame; the lifting module is arranged between the first frame and the second frame and used for changing the inclination angle of the second frame, a slope is conveniently formed at the tail end of the first frame during operation of the traction module, a faulty vehicle can be conveniently dragged, and compared with an existing mode that front wheels or rear wheels of the faulty vehicle are lifted, the whole vehicle can be borne, and the working efficiency is improved. Secondary accidents in the transferring process are avoided, the whole obstacle clearing operation is safer, and meanwhile the second vehicle frame can move to achieve transferring and obstacle clearing of fault vehicles of different sizes.
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Description

Technical Field

[0001] This utility model relates to the technical field of clearing vehicle equipment, specifically to a low-flatbed clearing semi-trailer with a traction module. Background Technology

[0002] As specialized rescue equipment, tow trucks primarily perform the dual functions of righting and rescuing accident vehicles and rapidly clearing obstacles. Currently, mainstream products in the domestic market have significant functional limitations: while boom-type tow trucks possess a 360° rotating boom system, enabling vehicle righting, attitude adjustment, and single-vehicle towing operations, they face bottlenecks in handling multi-vehicle collisions; flatbed tow trucks, through a combination of back-loading and towing, can achieve one-towing-two operations, but lack the core functional module for righting and rescuing accident vehicles, and existing products are generally limited to clearing small vehicles under 6 tons. It is worth noting that 34.7% of actual road accidents involve heavy vehicles, and existing equipment is insufficient to handle situations where multiple tonnage vehicles coexist in complex accidents.

[0003] For example, Chinese patent (application number 2013103980238) discloses a multi-functional recovery vehicle, including a truck-mounted crane, a multi-section vehicle platform, a lifting and towing mechanism, and a buffer-type towing hook mounted on a chassis. This multi-functional recovery vehicle has a simple structure and is easy to operate, offering multiple functions and configurations. It not only enhances the recovery vehicle's operational capabilities, maximizing its flatbed carrying and lifting capacity, but also expands its operational range. However, this type of recovery vehicle cannot fully tow large vehicles during operation, which can easily lead to secondary accidents during missions.

[0004] Therefore, enabling a single vehicle to simultaneously handle accident vehicles of different tonnages (3.5-25 tons) has become a key technological breakthrough direction for improving the efficiency of road emergency rescue. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a low-flatbed semi-trailer with a traction module capable of towing different types of vehicles.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a low-flatbed clearing semi-trailer with a traction module, comprising a first frame, a traction module disposed at the end of the first frame, a second frame disposed above the first frame, a lifting module disposed between the first frame and the second frame, the traction module comprising a traction bracket, a traction motor disposed on the traction bracket, and a traction rope connected to the output end of the traction motor.

[0007] As a further improvement to the above technical solution:

[0008] The front end of the traction bracket is provided with a first guide pulley, and the second frame is provided with a second guide pulley.

[0009] The second frame includes a positioning platform and a movable platform, wherein the movable platform is slidably connected to the positioning platform.

[0010] The positioning platform is equipped with a telescopic hydraulic cylinder for driving the movable platform to make lateral displacement.

[0011] The lifting module uses a lifting cylinder, with the fixed end of the lifting cylinder connected to the first frame and the telescopic end connected to the positioning platform.

[0012] The beneficial effects of this utility model embodiment are as follows: The low-flatbed semi-trailer with a traction module has a traction module installed at the front end of the first frame, and a second frame installed above the first frame. The second frame can slide along the length of the first frame. A lifting module is provided between the first and second frames to change the tilt angle of the second frame, so that a ramp is formed at the end of the first frame when the traction module is working, which facilitates the towing of the disabled vehicle. The traction module includes a traction bracket installed at the front end of the first frame, a traction motor installed in the traction bracket, a take-up roller installed at the output end of the traction motor, and a traction rope installed on the take-up roller. One end of the traction rope is connected to the take-up roller, and the other end is connected to the disabled vehicle. The disabled vehicle is towed onto the semi-trailer for transfer by means of the ramp formed by the second frame. Compared with the existing method of lifting the front or rear wheels of the disabled vehicle, this method can support the entire vehicle and avoid secondary accidents during the transfer, making the entire clearing operation safer. At the same time, the second frame can move to transfer and clear disabled vehicles of different sizes. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the usage state of this utility model. Figure 1 (with a disabled vehicle);

[0015] Figure 3 This is a schematic diagram of the usage state of this utility model. Figure 2 (with a disabled vehicle);

[0016] Figure 4 This is a schematic diagram of the traction module in this utility model.

[0017] In the diagram: 1. First frame; 2. Second frame; 3. Traction bracket; 4. Traction motor; 5. Traction rope; 6. First guide pulley; 7. Second guide pulley; 8. Positioning platform; 9. Movable platform; 10. Telescopic cylinder; 11. Lifting cylinder. Detailed Implementation

[0018] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0019] See Figure 1 This utility model discloses a low-flatbed semi-trailer for clearing obstacles, with a traction module. The traction module is installed at the front end of a first frame 1, and a second frame 2 is installed above the first frame 1. The second frame 2 can slide along the length of the first frame 1. A lifting module is provided between the first frame 1 and the second frame 2 to change the tilt angle of the second frame, so that a ramp is formed at the end of the first frame 1 when the traction module is working, facilitating the towing of disabled vehicles. The traction module includes a traction bracket 3 installed at the front end of the first frame 1, a traction motor 4 installed inside the traction bracket 3, a take-up roller installed at the output end of the traction motor 4, and a traction rope 5 installed on the take-up roller. One end of the traction rope 5 is connected to the take-up roller, and the other end is connected to the disabled vehicle. The disabled vehicle is towed onto the semi-trailer for transfer by means of the ramp formed by the second frame 2. Compared with the existing method of lifting the front or rear wheels of the disabled vehicle, this method can support the entire vehicle and avoid secondary accidents during the transfer, making the entire clearing operation safer. At the same time, the second frame 2 can move to transfer and clear disabled vehicles of different sizes.

[0020] The front end of the traction bracket 3 is provided with a first guide pulley 6 to guide the retraction of the traction rope 5. The front end of the second frame 2 is provided with a second guide pulley 7. The function of the second guide pulley 7 is to prevent the traction rope 5 from rubbing against the end of the second frame 2 during traction operations and causing wear.

[0021] The second frame 2 includes a positioning platform 8 and a movable platform 9. The movable platform 9 is slidably connected to the positioning platform 8. A telescopic cylinder 10 is installed between the movable platform 9 and the positioning platform 8. The movable platform 9 can be moved by operating the telescopic cylinder 10. The end of the movable platform 9 is provided with a ramp for contacting the ground. The lifting module adopts a lifting cylinder 11. The fixed end of the lifting cylinder is hinged to the first frame 1, and the telescopic end is hinged to the positioning platform 8. During operation, the lifting cylinder 11 is first used to lift the second frame 2 as a whole, so that it forms an angle of 8-13 degrees with the ground. Then, the telescopic cylinder 10 is activated to move the movable platform 9 backward and contact the ground. Then, the movable end of the towing rope 5 is connected to the disabled vehicle. After towing, the disabled vehicle is transferred to the semi-trailer and then transferred.

[0022] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0025] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A low flatbed wrecker semitrailer with traction modules, comprising a first frame (1), characterized in that: The end of the first frame (1) is provided with a traction module, the upper part of the first frame (1) is provided with a second frame (2), and the first frame (1) and the second frame (2) are provided with a lifting module; The traction module comprises a traction support (3), the traction support (3) is provided with a traction motor (4), and the output end of the traction motor (4) is connected with a traction rope (5).

2. The low deck recovery tractor trailer with traction modules of claim 1, wherein: The front end of the traction support (3) is provided with a first guide pulley (6), and the second frame (2) is provided with a second guide pulley (7).

3. The low deck recovery tractor trailer with traction modules of claim 1, wherein: The second frame (2) comprises a positioning platform (8) and a movable platform (9), and the movable platform (9) is in sliding connection with the positioning platform (8).

4. The low deck recovery tractor trailer with traction modules of claim 3, wherein: The positioning platform (8) is provided with a telescopic oil cylinder (10) for driving the movable platform (9) to move laterally.

5. The low deck recovery tractor trailer with traction modules of claim 3, wherein: The lifting module adopts a lifting oil cylinder (11), the fixed end of the lifting oil cylinder (11) is connected with the first frame (1), and the telescopic end is connected with the positioning platform (8).