Sleeved combined type traction towing bracket

By designing a modular towing trailer with a trapezoidal frame structure and shock absorption modules, the stability and safety issues of existing towing devices under various road conditions have been resolved. This enables smooth towing of large vehicles in complex road conditions, improving the mobility and safety of the fleet.

CN224197544UActive Publication Date: 2026-05-05中国人民武装警察部队第二机动总队机动第四支队
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
中国人民武装警察部队第二机动总队机动第四支队
Filing Date
2025-06-30
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing towing devices have problems such as difficulty in turning, easy tail-end slamming during braking, easy loss of control on downhill slopes, and easy detachment due to bumps when towing large vehicles, resulting in low safety and failing to meet the needs of rapid training, deployment, and emergency rescue.

Method used

A modular towing trailer was designed, featuring a trapezoidal frame structure, equipped with an elastic tow bar and a shock-absorbing module, along with replaceable towing quick-connect fittings and movable side frames. Real-time monitoring via video surveillance ensures stable towing under various road conditions.

Benefits of technology

It enables the towing trailer to travel smoothly on curves, slopes and bumpy roads even without power, braking and steering, improving the vehicle's maneuverability and safety. It has a wide range of applications and is simple and convenient to operate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sleeved combined type traction bracket, which comprises a bracket main body and two movable side frames, the bracket main body is of a trapezoidal frame structure, the front end of the bracket main body is provided with an elastic tractor, two sides of the rear end of the bracket main body are respectively provided with an extension rod, a replaceable traction quick connecting piece is sleeved in the extension rod, and the traction quick connecting piece is connected with the movable side frames. A connecting plate connected with a trailer device on the front side of a towed vehicle is arranged on the traction quick connecting piece, and a connecting hole is formed in the connecting plate. The two movable side frames are detachably arranged on the two sides of the towing bracket body, a connecting transverse rod is arranged in the middle of the towing bracket body, the front ends of the movable side frames are hinged to the connecting position of the transverse rod and the towing bracket body through connecting bases, and the rear ends of the movable side frames are provided with sleeving pipes connected with the extension rods. The traction towing bracket is stable and reliable in structure, convenient to carry, convenient to quickly assemble and use, and capable of being matched with different vehicles for quick connection, and ensures that the vehicles can smoothly run on a curve ramp or a bumpy road section through the traction towing bracket under the conditions of no power, no braking and no steering.
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Description

Technical Field

[0001] This utility model relates to the field of vehicle equipment technology, and in particular to a modular towing trailer. Background Technology

[0002] When large vehicles (such as transport trucks and RVs) experience power failure while traveling on the road, it is difficult to tow them using common trailers. They require other vehicles to be used to tow them back to a repair shop via tow ropes, tow bars, or similar means. Existing technologies generally include single-bar rigid towing, wire rope flexible towing, and nylon flexible towing devices. However, these existing towing devices present problems such as difficulty in towing and turning, risk of tailgating during braking, loss of control on downhill slopes, and susceptibility to detachment due to bumps. Their limitations are significant, their applicability is narrow, and their safety is low, resulting in limited towing speeds and failing to meet the vehicle repair and rescue needs of large convoys in scenarios such as rapid training, deployment, and emergency rescue.

[0003] Therefore, in order to reduce the time that disabled vehicles spend on the road during mobile training and driving, and to effectively improve the overall mobility of the fleet, it is necessary to optimize and upgrade the existing traction devices. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this utility model is to provide a modular towing trailer that is easy to carry in a vehicle, quick to install and connect, and adaptable to different vehicles. This ensures that even when a vehicle is without power, braking, or steering, it can still travel smoothly on curves, slopes, or bumpy roads using the towing trailer.

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

[0006] A modular towing trailer includes a trailer body and two movable side frames. The trailer body has a trapezoidal frame structure. An elastic tow bar is located at the front end of the trailer body, and extension rods are located on both sides of the rear end of the trailer body. Replaceable quick-connect towing components are fitted into the extension rods. Each quick-connect tow bar has a connecting plate that connects to a trailer hitch on the front of the towed vehicle, and the connecting plate has connecting holes. The two movable side frames are detachably mounted on both sides of the trailer body. A connecting crossbar is located in the middle of the trailer body. The front end of each movable side frame is hinged to the connecting crossbar at the connection point between the movable side frame and the trailer body via a connecting seat. The rear end of each movable side frame has a sleeve connecting to the extension rod.

[0007] Furthermore, a buffer and shock absorption module is provided between the elastic traction device and the main body of the trailer.

[0008] Furthermore, the traction quick-connect component and connecting plate include two or more specifications.

[0009] Furthermore, the traction quick-connect fitting not installed on the main body of the trailer is stored in the component box.

[0010] Furthermore, the connecting seat is provided with a hinge hole, and a detachable connecting pin is provided in the hinge hole.

[0011] Furthermore, the sleeve is provided with a sleeve fixing hole, the extension rod is provided with a pin hole, and a detachable pin is provided between the sleeve fixing hole and the pin hole.

[0012] Furthermore, the main body of the trailer is welded from metal tubing and connectors.

[0013] Furthermore, a video monitoring device is provided on the front side of the main body of the trailer.

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

[0015] 1. The main structure of this utility model trailer is stable and reliable. The main body of the trailer, the movable side frame and different traction quick connectors are easy to assemble and use quickly, easy to carry with vehicles, and can be adapted to different vehicles for quick connection and use. It ensures that the vehicle can carry out towing operations in various road environments such as straight sections, turning sections, and bumpy or uneven sections when there is no power, no braking and no steering. It has the characteristics of simple and convenient operation, wide vehicle compatibility, flexible expansion and upgrading, and safe and stable structure.

[0016] 2. The towing quick-connect parts in this utility model are configured according to different vehicles. Multiple models of towing quick-connect parts can be stored in one component box. The towing trailer and component box can be easily stored in the repair vehicle in the fleet. Two people can quickly complete the use, installation and storage. It has a wide range of applications. Attached Figure Description

[0017] Figure 1 This is a front view schematic diagram of the modular towing trailer of this utility model.

[0018] Figure 2 This is a three-dimensional schematic diagram of the modular towing trailer of this utility model.

[0019] Figure 3 This is a three-dimensional schematic diagram of the main body of the trailer of this utility model.

[0020] Figure 4 This is a three-dimensional schematic diagram of the movable side frame of this utility model.

[0021] Figure 5 This is a three-dimensional schematic diagram of one of the traction quick-connect components of this utility model.

[0022] Figure 6 This is a three-dimensional schematic diagram of the second structure of the traction quick-connect component of this utility model.

[0023] Figure 7 This is a three-dimensional schematic diagram of the third structure of the traction quick-connect component of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Main body of the trailer; 11. Extension rod; 12. Connecting crossbar; 2. Movable side frame; 21. Connecting seat; 211. Hinge hole; 22. Sleeve pipe; 221. Sleeve fixing hole; 3. Elastic traction device; 4. Traction quick connector; 41. Connecting plate; 5. Buffer and shock absorption module. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0027] See Figure 1-7As shown, a modular towing trailer includes a trailer body 1 and two movable side frames 2. The trailer body 1 has a trapezoidal frame structure and is welded from high-strength metal pipes and connectors to ensure structural rigidity under various road conditions. It is designed to have a maximum traction force of 15 tons and a speed of up to 60 km / h on straight roads. An elastic tow bar 3 is located at the front end of the trailer body 1. A shock-absorbing module 5 is installed between the elastic tow bar 3 and the trailer body 1. The shock-absorbing module 5 contains multiple sets of shock-absorbing springs, which effectively absorb and mitigate the impact of pushing and pulling forces from uphill and downhill slopes, braking, and turning, as well as the bumpy impact from unpaved roads, significantly expanding its applicable road range and making it suitable for off-road use. Extension rods 11 are located on both sides of the rear end of the trailer body 1. Replaceable towing quick-connect fittings 4 are fitted into the extension rods 11. A connecting plate 41 is provided to connect to the trailer hitch on the front side of the towed vehicle. The connecting plate 41 has connecting holes. The connecting plate 41 is prefabricated according to the structure of the towed vehicle, including two or more specifications, up to more than twenty types, which can be widely compatible with vehicle models with different ground clearance, wheelbase, and towing ring positions. When adding a new type of vehicle, only the corresponding towing quick-connect component 4 needs to be designed and manufactured. The prefabricated towing quick-connect component 4, not installed on the trailer body 1, is stored in a component box for easy transport along with the trailer body 1. Two movable side frames 2 are detachably set on both sides of the trailer body 1. A connecting crossbar 12 is provided in the middle of the trailer body 1. The front end of the movable side frame 2 is hinged to the connection between the connecting crossbar 12 and the trailer body 1 via a connecting seat 21. The rear end of the movable side frame 2 is provided with a sleeve 22 connected to the extension rod 11. The connecting seat 21 has a hinge hole 211, and a detachable connecting pin is provided in the hinge hole 211. The sleeve 22 is provided with a sleeve fixing hole 221, and the extension rod 11 is provided with a pin hole. A detachable pin is provided between the sleeve fixing hole 221 and the pin hole. Multiple connection safety is formed by connecting pins and pins to effectively prevent accidental disengagement and ensure that the towing trailer as a whole can absorb instantaneous impact force to the greatest extent.

[0028] Furthermore, a video monitoring device is provided on the front side of the trailer body 1; the camera of the video monitoring device can be set at the rear of the towing vehicle and aimed at the towing trailer, and the monitoring screen can be set in the cab to facilitate real-time observation of the status of the towing trailer and the towed vehicle.

[0029] The above description is only a specific embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural transformations made based on the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A modular towing trailer, comprising a trailer body (1) and two movable side frames (2), characterized in that: The trailer body (1) is a trapezoidal frame structure. The front end of the trailer body (1) is provided with an elastic traction device (3). The rear ends of the trailer body (1) are provided with extension rods (11) on both sides. Replaceable traction quick connectors (4) are sleeved in the extension rods (11). The traction quick connectors (4) are provided with connecting plates (41) that are connected to the trailer device on the front side of the towed vehicle. The connecting plates (41) are provided with connecting holes. The two movable side frames (2) are detachably set on both sides of the trailer body (1). A connecting crossbar (12) is provided in the middle of the trailer body (1). The front end of the movable side frame (2) is hinged to the connection between the connecting crossbar (12) and the trailer body (1) through a connecting seat (21). The rear end of the movable side frame (2) is provided with a sleeve (22) that is connected to the extension rod (11).

2. The modular towing trailer according to claim 1, characterized in that: A buffer and shock absorption module (5) is provided between the elastic traction device (3) and the trailer body (1).

3. The modular towing trailer according to claim 1, characterized in that: The traction quick connector (4) and connecting plate (41) include two or more specifications.

4. The modular towing trailer according to claim 3, characterized in that: The traction quick-connect (4) not installed on the main body of the trailer (1) is stored in the component box.

5. The modular towing trailer according to claim 1, characterized in that: The connecting seat (21) is provided with a hinge hole (211), and a detachable connecting pin is provided in the hinge hole (211).

6. The modular towing trailer according to claim 1, characterized in that: The sleeve (22) is provided with a sleeve fixing hole (221), and the extension rod (11) is provided with a pin hole. A detachable pin is provided between the sleeve fixing hole (221) and the pin hole.

7. The modular towing trailer according to claim 1, characterized in that: The main body of the trailer (1) is welded from metal pipes and connectors.

8. The modular towing trailer according to claim 1, characterized in that: The trailer body (1) is equipped with a video monitoring device on the front side.