Trailer device of heavy duty vehicle

By designing a combination of a trailer boom, a load-bearing boom, and a tire-fixing trolley, flexible steering and safe towing of forklift malfunctioning vehicles are achieved, solving safety hazards and difficulties during forklift towing and improving rescue efficiency.

CN224184190UActive Publication Date: 2026-05-01JCC GUIXI LOGISTICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JCC GUIXI LOGISTICS CO LTD
Filing Date
2025-05-19
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

A malfunctioning forklift cannot steer flexibly when towing, posing safety hazards and inconvenience. Furthermore, the forks and cargo are prone to contact with the ground, making towing difficult.

Method used

A heavy-duty vehicle trailer design includes a trailer bar, a load-bearing bar, a load-bearing adjustment beam, and a tire-fixing trolley. By raising and fixing the front of the vehicle, steering is achieved using rigid traction, adapting to different vehicle models and environments.

Benefits of technology

It improves the safety and efficiency of towing disabled vehicles, avoids the forks and cargo from contacting the ground, adapts to different working environments, and enhances the flexibility and safety of on-site rescue.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of vehicle trailer rescue, and discloses a heavy duty vehicle trailer device which comprises a trailer rod, a stress rod, a load-bearing adjusting beam and two sets of tire fixing trolleys, the stress rod is detachably installed at one end of the trailer rod, the load-bearing adjusting beam is welded to the opposite end, away from the trailer rod, of the stress rod, and the two sets of tire fixing trolleys are welded to the load-bearing adjusting beam. The two sets of tire fixing trolleys are welded to the two ends of the bearing adjusting beam correspondingly, and multiple sets of bearing universal wheels are arranged at the bottoms of the two sets of tire fixing trolleys correspondingly. Through cooperation of the trailer rod, the stress rod, the load-bearing adjusting beam and the two sets of tire fixing trolleys, a faulty vehicle can be lifted and then placed on the tire fixing trolleys, so that a fork knife is separated from the ground after the forklift ascends by a certain height, great difficulty caused by the fact that the fork knife and goods make contact with the ground is effectively avoided, and meanwhile the forklift is convenient to use. The device is suitable for trailer operation of different vehicle types and different operation environments, and the efficiency of field rescue of the heavy duty vehicle is improved.
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Description

Technical Field

[0001] This utility model relates to the field of vehicle towing and rescue technology, specifically to a towing device for heavy vehicles. Background Technology

[0002] Forklifts are industrial handling vehicles, referring to various wheeled handling vehicles used for loading, unloading, stacking, and short-distance transportation of palletized goods. They are called industrial vehicles by the International Organization for Standardization and are commonly used for transporting large items in warehouses. They are usually powered by fuel engines or batteries. Forklifts operate in complex environments, and if a malfunction occurs, it can easily cause traffic congestion and affect production.

[0003] However, forklifts are front-wheel drive and rear-wheel steering. When a faulty vehicle is towed, it cannot be steered flexibly, which poses a great safety hazard and inconvenience for on-site repair. At the same time, the faulty vehicle may be carrying goods or the forks and goods may be in contact with the ground, which makes towing extremely difficult. Therefore, we need to propose a towing device for heavy vehicles. Utility Model Content

[0004] The purpose of this utility model is to provide a towing device for heavy vehicles, which can place the front wheels of the vehicle on it, raise and secure the front of the vehicle body, so that the forks or cargo are lifted off the ground, and the vehicle can be turned by hard traction. After moving to a suitable site, it can be towed for rescue, which is very convenient and quick, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a trailer towing device for heavy vehicles, comprising a trailer bar, a load-bearing bar, a load-bearing adjusting beam, and two sets of tire-fixing trolleys. The load-bearing bar is detachably installed at one end of the trailer bar. The load-bearing adjusting beam is welded to the end of the load-bearing bar opposite to the trailer bar. The two sets of tire-fixing trolleys are respectively welded to both ends of the load-bearing adjusting beam. The bottom of each set of tire-fixing trolleys is provided with multiple sets of load-bearing casters. The load-bearing adjusting beam is provided with multiple sets of through bolts.

[0006] Preferably, one end of the trailer rod is provided with a groove for mounting a force-bearing rod, the force-bearing rod is connected to the trailer rod via a steering shaft, and the other end of the trailer rod is provided with a trailer pin for connecting to a trailer.

[0007] Preferably, the load-bearing adjustment beam includes a main beam and an extended inner beam, the extended inner beam is inserted into one end of the main beam, the force-bearing rod is welded to one side of the main beam, and both the main beam and the extended inner beam are provided with mounting holes for multiple sets of through bolts.

[0008] Preferably, the tire fixing trolley includes a load-bearing panel, a force-bearing panel, and two sets of symmetrically arranged contact panels. Both sets of contact panels and the force-bearing panel are welded to the upper surface of the load-bearing panel, and both sets of contact panels are welded to one side of the force-bearing panel. The two sets of contact panels are arranged at an angle.

[0009] Preferably, the opposite ends of the main beam and the extended inner beam are respectively welded to the other side of the force-bearing panel of the two sets of tire fixing trolleys, and anti-slip ridges are provided on one side of the two sets of contact panels.

[0010] Preferably, one end of each side of the load-bearing rod is provided with a right-angled iron block welded to the main beam, and the right-angled iron block is also welded to the connection end between the main beam and the extended inner beam and the load-bearing panel.

[0011] Preferably, one end of the trailer rod is further provided with multiple sets of fixing bolts that pass through the load-bearing rod, and the multiple sets of fixing bolts are arranged at equal angles.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model mainly utilizes the cooperation between the trailer boom, the load-bearing boom, the load-bearing adjustment beam, and two sets of tire-fixing trolleys to lift a disabled vehicle and place it on the tire-fixing trolleys. This allows the forklift to be raised to a certain height before the forks are off the ground, effectively avoiding the great difficulties caused by the forks and goods contacting the ground. At the same time, it is suitable for towing operations of different vehicle models and different working environments, improving the efficiency of on-site rescue of heavy vehicles. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the front planar structure of this utility model.

[0016] In the diagram: 1. Trailer arm; 2. Load-bearing bar; 3. Load-bearing adjusting beam; 31. Main beam; 32. Extended inner beam; 4. Through bolt; 5. Right-angle iron block; 6. Contact panel; 7. Trailer pin; 8. Steering shaft; 9. Fixing bolt; 10. Tire fixing trolley; 11. Load-bearing caster wheel; 12. Load-bearing panel; 13. Load-bearing panel. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1-2 This utility model provides a technical solution: a trailer towing device for heavy vehicles, including a trailer bar 1, a load-bearing bar 2, a load-bearing adjusting beam 3, and two sets of tire fixing trolleys 10. The load-bearing bar 2 is detachably installed at one end of the trailer bar 1. The load-bearing adjusting beam 3 is welded to the end of the load-bearing bar 2 opposite to the trailer bar 1. The two sets of tire fixing trolleys 10 are respectively welded to both ends of the load-bearing adjusting beam 3. The bottom of each set of tire fixing trolleys 10 is provided with multiple sets of load-bearing casters 11. The load-bearing adjusting beam 3 is provided with multiple sets of through bolts 4.

[0019] One end of the trailer boom 1 is provided with a groove for mounting the load-bearing rod 2. The load-bearing rod 2 is connected to the trailer boom 1 via a steering shaft 8. The other end of the trailer boom 1 is provided with a trailer pin 7 for connecting to a trailer. The trailer pin 7 facilitates the connection of the trailer boom 1 to the rear of the trailer, thereby facilitating the use of the trailer towing device for rescuing heavy forklifts. Furthermore, the connection between the load-bearing rod 2 and the trailer boom 1 via the steering shaft 8 is designed to adapt to different road conditions and trailer operating conditions, thereby improving the applicable rescue environment.

[0020] The load-bearing adjustment beam 3 includes a main beam 31 and an extended inner beam 32. The extended inner beam 32 is inserted into one end of the main beam 31, and the force-bearing rod 2 is welded to one side of the main beam 31. Both the main beam 31 and the extended inner beam 32 are provided with mounting holes for installing multiple sets of through bolts 4. By adjusting the depth of the extended inner beam 32 inserted into the main beam 31, the relative distance between the two sets of tire fixing trolleys 10 can be adjusted to accommodate vehicles with different tire spacing, thus improving the applicability. Furthermore, the use of through bolts 4 to penetrate the main beam 31 and the extended inner beam 32 improves the stability of the connection between the main beam 31 and the extended inner beam 32. The cross-section of the main beam 31 can be square or circular.

[0021] The tire-fixing trolley 10 includes a load-bearing panel 13, a force-bearing panel 12, and two sets of symmetrically arranged contact panels 6. Both sets of contact panels 6 and the force-bearing panel 12 are welded to the upper surface of the load-bearing panel 13. Both sets of contact panels 6 are welded to one side of the force-bearing panel 12, and the two sets of contact panels 6 are arranged at an angle. By placing the tire of the disabled vehicle between the two sets of contact panels 6, the tire of the disabled vehicle is fixed. The two sets of contact panels 6 form an inverted trapezoidal limiting space, thereby improving the limiting effect on the tire. The load-bearing casters 11 enable the disabled vehicle to steer flexibly when towing, improving the efficiency of rescue.

[0022] The opposite ends of the main beam 31 and the extended inner beam 32 are respectively welded to the other side of the force-bearing panel 12 of the two sets of tire fixing trolleys 10. Anti-slip ridges are provided on one side of the two sets of contact panels 6. The anti-slip ridges further improve the stability of the tires placed on the tire fixing trolleys 10, thereby improving the safety of the rescue.

[0023] One end of each side of the force-bearing rod 2 is provided with a right-angled iron block 5 welded to the main beam 31. The right-angled iron block 5 is also welded to the connection end of the main beam 31 and the extended inner beam 32 with the force-bearing panel 12. By setting the right-angled iron block 5 at different connection ends, the stability of the device is increased, and the welding between adjacent sets of components is more stable.

[0024] One end of the trailer boom 1 is also provided with multiple sets of fixing bolts 9 that pass through the load-bearing rod 2. The multiple sets of fixing bolts 9 are set at equal angles. The multiple sets of fixing bolts 9 are used to easily fix the trailer boom 1 and the load-bearing rod 2, thereby restricting the two to a straight line and preventing them from turning flexibly. This is suitable for use on road sections with good road conditions.

[0025] In use, adjust the length of the extended inner beam 32 according to the wheelbase of the disabled vehicle so that the distance between the two sets of tire fixing trolleys 10 is the same as the wheelbase. Then, fix the extended inner beam with multiple sets of through bolts 4 and lift the front end of the disabled vehicle so that the forklift forks are away from the ground. At this time, place the two sets of tire fixing trolleys 10 of the trailer device under the two sets of front wheels respectively. After lowering the disabled vehicle, let the front wheels fall between the two sets of contact panels 6 to limit the front wheels and prevent the front wheels of the disabled vehicle from coming off. Then, connect the trailer bar 1 to the rear end of the trailer with the trailer pin 7 to facilitate towing the disabled vehicle to a safe area to wait for rescue and improve the safety of rescue.

[0026] 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 trailer hitch for a heavy vehicle, comprising a trailer boom (1), a load-bearing rod (2), a load-bearing adjusting beam (3), and two sets of tire-fixing trolleys (10), characterized in that: The force-bearing rod (2) is detachably installed at one end of the trailer rod (1). The load-bearing adjustment beam (3) is welded to the end of the force-bearing rod (2) away from the trailer rod (1). The two sets of tire-fixing trolleys (10) are respectively welded to both ends of the load-bearing adjustment beam (3). The bottom of the two sets of tire-fixing trolleys (10) is provided with multiple sets of load-bearing casters (11). The load-bearing adjustment beam (3) is provided with multiple sets of through bolts (4).

2. The trailer-mounted device for a heavy vehicle according to claim 1, characterized in that: One end of the trailer rod (1) is provided with a groove for mounting the force rod (2), the force rod (2) is connected to the trailer rod (1) through a steering shaft (8), and the other end of the trailer rod (1) is provided with a trailer pin (7) connected to the trailer.

3. The trailer-mounted device for a heavy vehicle according to claim 2, characterized in that: The load-bearing adjustment beam (3) includes a main beam (31) and an extended inner beam (32). The extended inner beam (32) is inserted into one end of the main beam (31). The force-bearing rod (2) is welded to one side of the main beam (31). The main beam (31) and the extended inner beam (32) are both provided with mounting holes for multiple sets of through bolts (4).

4. A trailer-mounted device for a heavy vehicle according to claim 3, characterized in that: The tire-fixing trolley (10) includes a load-bearing panel (13), a force-bearing panel (12), and two sets of symmetrically arranged contact panels (6). The two sets of contact panels (6) and the force-bearing panel (12) are welded to the upper surface of the load-bearing panel (13), and the two sets of contact panels (6) are welded to one side of the force-bearing panel (12). The two sets of contact panels (6) are arranged at an angle.

5. A trailer-mounted device for a heavy vehicle according to claim 4, characterized in that: The main beam (31) and the extended inner beam (32) are respectively welded to the other side of the force-bearing panel (12) of the two sets of tire-fixing trolleys (10), and anti-slip ridges are provided on one side of the two sets of contact panels (6).

6. A trailer-mounted device for a heavy vehicle according to claim 5, characterized in that: One end of the force-bearing rod (2) is provided with a right-angled iron block (5) welded to the main beam (31), and the right-angled iron block (5) is also welded to the connection end of the main beam (31) and the extended inner beam (32) with the force-bearing panel (12).

7. A trailer-mounted device for a heavy vehicle according to claim 1, characterized in that: One end of the trailer rod (1) is also provided with multiple sets of fixing bolts (9) that pass through the force-bearing rod (2), and the multiple sets of fixing bolts (9) are arranged at equal angles.