Reinforced tow hook
By designing a reinforced trailer hitch and using a combination structure such as a reinforced crossbeam to connect with the vehicle's main beam, the stress points are distributed, solving the problem of the trailer hitch tearing and falling off under heavy loads, thus achieving improved strength and convenient installation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO XINZHIHUA AUTOMOBILE COMPONENT
- Filing Date
- 2025-06-04
- Publication Date
- 2026-05-08
AI Technical Summary
Existing trailer hitches are prone to tearing and detaching from the crash beam connection point under heavy loads, affecting vehicle driving safety.
A reinforced trailer hitch was designed, which uses a combination of reinforced crossbeams, triangular reinforcing plates, fan-shaped reinforcing plates, side plates, extension columns, and connecting plates to connect to the vehicle beam with high-strength bolts, thereby distributing the stress points and increasing the connection strength.
It effectively prevents the trailer hook from tearing and falling off from the anti-collision beam connection point under heavy loads, improving the strength and ease of installation of the trailer hook.
Smart Images

Figure CN224210853U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of trailer hitch technology, and in particular to a reinforced trailer hitch. Background Technology
[0002] Trailer hooks are typically installed at the rear of a vehicle, primarily for towing and carrying loads, and are the component most subjected to concentrated stress during towing and carrying. Most existing trailer hooks are directly welded to the rear of the vehicle. Under heavy loads, this method of fixing can lead to the trailer hook tearing and detaching from the connection point with the crash beam, or deforming at the connection point, thus affecting vehicle safety. Therefore, a reinforced trailer hook has been designed to address these issues. Utility Model Content
[0003] In view of the shortcomings of existing trailer hitch technology, the purpose of this utility model is to provide a reinforced trailer hitch with advantages such as improved connection strength and ease of installation.
[0004] To achieve the above objectives, the present invention employs the following technical solution: a reinforced trailer hitch, comprising a reinforcing beam, a triangular reinforcing plate, a fan-shaped reinforcing plate, side plates, extension columns, a connecting plate, a plug bracket, and a trailer hitch. Side plates are symmetrically welded to both sides of the reinforcing beam. Each side plate has a combined positioning hole at its outer end for fixing to the vehicle body. A triangular reinforcing plate is welded at the angle between the side plate and the reinforcing beam. Two extension columns are symmetrically fixedly connected to the middle of the reinforcing beam. A fan-shaped reinforcing plate is welded to the connection point between the extension columns and the reinforcing beam. The connecting plate is fixedly connected to the outer ends of the two extension columns. A trailer hitch is provided in the middle of the connecting plate. The thickness of the connecting plate is greater than 5mm. The plug bracket is located on the outer side of any extension column.
[0005] Preferably, the combined positioning hole has a positioning through hole and an opening hole. The positioning through hole is located in the middle of the side plate, and the opening hole is located on the outside of the side plate. When fixing the trailer hook, the side plate is first assembled to the position of the vehicle frame, and then high-strength bolts are inserted into the positioning through hole and the opening hole and locked to the inside of the vehicle beam.
[0006] Preferably, one end of the trailer hook has a connecting flange, and the other end of the trailer hook has a ball head. The connecting flange is detachably fixed to the connecting plate by high-strength bolts.
[0007] Preferably, a wire harness clip fixing bracket is also provided on one side of the reinforcing crossbeam;
[0008] Preferably, each of the side panels is provided with a U-shaped lug for fixing to the vehicle on its outer side, and the end face of the U-shaped lug has a reinforcing fixing hole;
[0009] The beneficial effects of this utility model are: 1. By connecting the trailer hook to the vehicle beam with multiple high-strength bolts, the stress points between the trailer hook and the vehicle can be increased, thereby preventing the trailer hook from tearing and falling off from the connection point of the anti-collision beam under heavy load; 2. The trailer hook disperses the stress points through the reinforcing crossbeam, triangular reinforcing plate, fan-shaped reinforcing plate, side plate, extension column and connecting plate, thereby dispersing the force transmission path and increasing the strength of the trailer hook; 3. The trailer hook and the vehicle are positioned and fixed through the combined positioning holes, eliminating the need for tooling for positioning during installation, thus achieving the purpose of easy installation. Attached Figure Description
[0010] Figure 1 , 2 3 is a three-dimensional structural view of this utility model;
[0011] Figure 4 This is a top view of the present invention;
[0012] Figure 5 This is a front view of the present invention;
[0013] Figure 6 This is a side view of the present invention. Detailed Implementation
[0014] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.
[0015] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.
[0016] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "equipped with," and "set up" 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 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.
[0017] Please see Figures 1 to 6 The embodiments of this utility model include:
[0018] A reinforced trailer hitch includes a reinforcing beam 1, a triangular reinforcing plate 2, a fan-shaped reinforcing plate 3, a side plate 4, an extension column 5, a connecting plate 6, a plug bracket 7, and a trailer hitch 8. The reinforcing beam 1 has side plates 4 symmetrically welded to both sides. The outer end of each side plate 4 has a combined positioning hole 41 for fixing to the vehicle body. The side plate 4 and the reinforcing beam 1 are connected at an angle by a triangular reinforcing plate 2. Two extension columns 5 are symmetrically fixedly connected to the middle of the reinforcing beam 1. A fan-shaped reinforcing plate 3 is welded to the connection position between the extension column 5 and the reinforcing beam 1. The connecting plate 6 is fixedly connected to the outer ends of the two extension columns 5. A trailer hitch 8 is provided in the middle of the connecting plate 6. The thickness of the connecting plate 6 is greater than 5mm. The plug bracket 7 is located on the outer side of any extension column 5.
[0019] The combined positioning hole 41 has a positioning through hole 411 and an opening hole 412. The positioning through hole 411 is located in the middle of the side plate 4, and the opening hole 412 is located on the outside of the side plate 4. When fixing the trailer hook 8, the side plate 4 is first assembled to the position of the vehicle frame, and then the bolts are inserted into the positioning through hole 411 and the opening hole 412 and locked to the vehicle.
[0020] The trailer hook 8 has a connecting flange 81 at one end and a ball head 82 at the other end. The connecting flange 81 is detachably fixed to the connecting plate 6 by high-strength bolts.
[0021] One side of the reinforcing crossbeam 1 is also provided with a wire harness buckle fixing bracket 11;
[0022] The outer side of each side plate 4 is provided with a U-shaped lug 42 for fixing to the vehicle, and the end face of the U-shaped lug 42 has a reinforcing fixing hole 421;
[0023] With the above settings, its specific working principle in actual operation is as follows:
[0024] When fixing the trailer hook 8, first assemble the side plate 4 to the position of the vehicle frame, then insert the high-strength bolt into the positioning through hole 411 and the opening hole 412, and lock it to the inside of the vehicle beam. Then insert the high-strength bolt into the reinforcing fixing hole 421 on the end face of the U-shaped lifting lug 42, and lock it to the bottom of the vehicle beam.
[0025] By connecting the trailer hook 8 to the vehicle beam with multiple high-strength bolts, the stress points between the trailer hook 8 and the vehicle can be increased, thereby preventing the trailer hook 8 from tearing and falling off from the connection point with the anti-collision beam under heavy loads.
[0026] During the traction process, the trailer hook 8 disperses the stress points through the reinforcing crossbeam 1, triangular reinforcing plate 2, fan-shaped reinforcing plate 3, side plate 4, extension column 5 and connecting plate 6, thereby dispersing the force transmission path and increasing the strength of the trailer hook 8.
[0027] The trailer hook 8 is positioned and fixed to the vehicle through the combination positioning hole 41. During installation, no tooling is needed to position it, thus facilitating installation.
[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, 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 reinforced trailer hitch, characterized in that, The device includes a reinforcing crossbeam, a triangular reinforcing plate, a fan-shaped reinforcing plate, side plates, extension columns, a connecting plate, a plug bracket, and a trailer hitch. Side plates are symmetrically welded to both sides of the reinforcing crossbeam. The outer ends of the side plates have combination positioning holes for fixing to the vehicle body. A triangular reinforcing plate is welded to the side plates at the angle where they connect to the reinforcing crossbeam. Two extension columns are symmetrically fixedly connected to the middle of the reinforcing crossbeam. A fan-shaped reinforcing plate is welded to the connection point between the extension columns and the reinforcing crossbeam. A connecting plate is fixedly connected to the outer ends of the two extension columns. A trailer hitch is located in the middle of the connecting plate. The connecting plate has a thickness greater than 5mm. The plug bracket is located on the outer side of any extension column.
2. The reinforced trailer hitch according to claim 1, characterized in that, The combined positioning hole has a positioning through hole and an opening hole. The positioning through hole is located in the middle of the side plate, and the opening hole is located on the outer side of the side plate.
3. The reinforced trailer hitch according to claim 1, characterized in that, The trailer hook has a connecting flange at one end and a ball head at the other end. The connecting flange is detachably fixed to the connecting plate by high-strength bolts.
4. The reinforced trailer hitch according to claim 1, characterized in that, The reinforcing beam is also equipped with a wire harness clip fixing bracket on one side.
5. A reinforced trailer hitch according to claim 1, characterized in that, Each side panel has a vertically arranged U-shaped lug for fixing to the vehicle, and the end face of the U-shaped lug has a reinforcing fixing hole.