An elongate trailer hitch

Abstract

This utility model discloses an extended trailer hitch, including a crossbeam, a trailer hitch, side plates, a locking assembly, a rotating seat, a plug bracket, a triangular reinforcing plate, an arc-shaped reinforcing plate, and a positioning plate. The side plates are symmetrically welded to both ends of the crossbeam and are used for fixed connection with the vehicle. Two symmetrical positioning plates are welded to the middle of the crossbeam, and a detachable rotating seat is provided between the positioning plates. The bottom end of the rotating seat is rotatably connected to the trailer hitch. A locking assembly for fixing the rotation position of the trailer hitch is provided inside the rotating seat. A triangular reinforcing plate is provided on the outer side of the positioning plate and welded to the crossbeam. An arc-shaped reinforcing plate is also provided at the welding position of the triangular reinforcing plate and the crossbeam to increase the welding area. The plug bracket is fixedly connected to the end face of one of the positioning plates. When the trailer hitch is not in use, the trailer hitch can be rotated and retracted to the inside of the vehicle by unlocking the locking assembly, so that it will not affect other vehicles when the trailer hitch is not in use.

Description

Technical Field

[0001] This utility model relates to the field of trailer hitch technology, and in particular to an extended trailer hitch. Background Technology

[0002] Trailer hooks are typically installed at the rear of a vehicle, primarily for towing and carrying. To ensure the ability to tow different sized trailer hooks, they are typically extended towards the rear of the vehicle. However, existing trailer hooks are usually welded directly to the rear of the vehicle. When not in use, an excessively long trailer hook can pose a threat to following vehicles, especially in the event of a rear-end collision, where the trailer hook may become embedded in the engine compartment of the following vehicle, causing serious vehicle damage. Therefore, an extended trailer hook has been designed to address these issues. Utility Model Content

[0003] In view of the shortcomings of existing trailer hitches, the purpose of this utility model is to provide an extended trailer hitch with advantages such as retractable trailer hitch and easy operation.

[0004] To achieve the above objectives, the present invention employs the following technical solution: an extended trailer hitch, comprising a crossbeam, a trailer hitch, side plates, a locking assembly, a rotating seat, a plug bracket, a triangular reinforcing plate, an arc-shaped reinforcing plate, and a positioning plate. The side plates are symmetrically welded to both ends of the crossbeam and are used for fixed connection with the vehicle. Two symmetrical positioning plates are welded to the middle of the crossbeam, and a detachable rotating seat is provided between the positioning plates. The bottom end of the rotating seat is rotatably connected to the trailer hitch. A locking assembly for fixing the rotation position of the trailer hitch is provided inside the rotating seat. A triangular reinforcing plate is provided on the outer side of the positioning plate and welded to the crossbeam. An arc-shaped reinforcing plate is also provided at the welding position of the triangular reinforcing plate and the crossbeam to increase the welding area. The plug bracket is fixedly connected to the end face of one side of the positioning plate.

[0005] Preferably, the trailer hook has a ball head, an extended hook body and a rotating shaft. One end of the extended hook body has a ball head, and the other end of the extended hook body has a rotating shaft. The rotating shaft is rotatably connected to a rotating seat, and the end face of the rotating shaft also has a first spline groove for mounting a locking assembly.

[0006] Preferably, the rotating seat has a second spline groove and a rotating groove, the rotating groove is used to install the trailer hook shaft, and the spline groove is located at the top of the rotating groove;

[0007] Preferably, the locking assembly includes a cam, a knob, a spline, and a spring. The knob is rotatably connected to the outside of the trailer hook shaft. The cam is located at the bottom of the first spline groove. The cam is coaxially fixedly connected to the knob via a connecting shaft. The spline is axially slidably connected between the first spline groove and the second spline groove. The spring is located in the second spline groove to force the spline to abut against the cam.

[0008] Preferably, positioning frames for fixing wire harnesses are also provided on both sides of the crossbeam;

[0009] The beneficial effects of this utility model are: 1. When the trailer hook is not in use, the trailer hook can be rotated and retracted to the inside of the vehicle by unlocking the locking component, so that it will not affect other vehicles when the trailer hook is not in use; 2. By rotating the knob, the cam is driven to rotate synchronously, and the cam drives the spline to move between the first spline groove and the second spline groove, so that the trailer hook can be easily unlocked and retracted. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural view of the present invention;

[0011] Figure 2 This is a top view of the present invention;

[0012] Figure 3 This is a front view of the present invention;

[0013] Figure 4 This is a cross-sectional view of the trailer hook and rotating seat assembly of this utility model. 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 4 The embodiments of this utility model include:

[0018] An extended trailer hitch 2 includes a crossbeam 1, a trailer hitch 2, side plates 3, a locking assembly 4, a rotating seat 5, a plug bracket 6, a triangular reinforcing plate 7, an arc-shaped reinforcing plate 8, and a positioning plate 9. The side plates 3 are symmetrically welded to both ends of the crossbeam 1 and are used for fixed connection with a vehicle. Two symmetrical positioning plates 9 are welded to the middle of the crossbeam 1. A detachable rotating seat 5 is provided between the positioning plates 9. The bottom end of the rotating seat 5 is rotatably connected to the trailer hitch 2. The rotating seat 5 is provided with a locking assembly 4 for fixing the rotation position of the trailer hitch 2. The outer side of the positioning plate 9 is provided with a triangular reinforcing plate 7 that is welded to the crossbeam 1. An arc-shaped reinforcing plate 8 is also provided at the welding position of the triangular reinforcing plate 7 and the crossbeam 1 to increase the welding area. The plug bracket 6 is fixedly connected to the end face of one side of the positioning plate 9.

[0019] The trailer hook 2 has a ball head 21, an extended hook body 22 and a rotating shaft 23. One end of the extended hook body 22 has a ball head 21 and the other end of the extended hook body 22 has a rotating shaft 23. The rotating shaft 23 is rotatably connected to the rotating seat 5. The end face of the rotating shaft 23 also has a first spline groove 24 for installing the locking assembly 4.

[0020] The rotating seat 5 has a second spline groove 51 and a rotating groove 52. The rotating groove 52 is used to install the trailer hook 2 shaft 23. The spline 43 groove is located at the top of the rotating groove 52.

[0021] The locking assembly 4 includes a cam 41, a knob 42, a spline 43, and a spring 44. The knob 42 is rotatably connected to the outside of the rotating shaft 23 of the trailer hook 2. The cam 41 is located at the bottom of the first spline groove 24. The cam 41 is coaxially and fixedly connected to the knob 42 through a connecting shaft. The spline 43 is axially slidably connected between the first spline groove 24 and the second spline groove 51. The spring 44 is located in the second spline groove 51 to force the spline 43 to abut against the cam 41.

[0022] The crossbeam 1 is also provided with positioning frames 11 on both sides for fixing wire harnesses;

[0023] With the above settings, its specific working principle in actual operation is as follows:

[0024] When the trailer hook 2 is not in use, the cam 41 is rotated synchronously by turning the knob 42, so that the high point of the contact between the cam 41 and the spline 43 is switched to the low point. At this time, the spring 44 forces the spline 43 to slide completely into the first spline groove 24, so that the trailer hook 2 and the rotating seat 5 are not restricted by the spline 43, and the trailer hook 2 can be rotated to retract to the inside of the vehicle.

[0025] After the trailer hook 2 is retracted, the cam 41 is rotated synchronously by rotating the knob 42, so that the low point of the contact between the cam 41 and the spline 43 is switched to the high point. At this time, the cam 41 drives the spline 43 to slide between the first spline groove 24 and the second spline groove 51, thereby fixing and limiting the trailer hook 2 and the rotating seat 5.

[0026] 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. An extended trailer hitch, characterized in that, The device includes a crossbeam, a trailer hitch, side plates, a plug bracket, a triangular reinforcing plate, an arc-shaped reinforcing plate, a positioning plate, a rotating seat, and a locking assembly. The side plates are symmetrically welded to both ends of the crossbeam and are used for fixed connection with the vehicle. Two symmetrical positioning plates are welded to the middle of the crossbeam, and a detachable rotating seat is provided between the positioning plates. The bottom end of the rotating seat is rotatably connected to the trailer hitch, and a locking assembly is provided inside the rotating seat to fix the rotation position of the trailer hitch. A triangular reinforcing plate is provided on the outside of the positioning plate and welded to the crossbeam. An arc-shaped reinforcing plate is also provided at the welding position of the triangular reinforcing plate and the crossbeam to increase the welding area. The plug bracket is fixedly connected to the end face of one side of the positioning plate.

2. The extended trailer hitch according to claim 1, characterized in that, The trailer hook has a ball head, an extended hook body and a pivot. One end of the extended hook body has a ball head and the other end has a pivot. The pivot is rotatably connected to a rotating seat. The end face of the pivot also has a first spline groove for mounting a locking assembly.

3. The extended trailer hitch according to claim 1, characterized in that, The rotating seat has a second spline groove and a rotating groove. The rotating groove is used to install the trailer hook shaft, and the second spline groove is located at the top of the rotating groove.

4. The extended trailer hitch according to claim 1, characterized in that, The locking assembly includes a cam, a knob, a spline, and a spring. The knob is rotatably connected to the outside of the trailer hook shaft. The cam is located at the bottom of the first spline groove. The cam is coaxially fixedly connected to the knob via a connecting shaft. The spline is axially slidably connected between the first spline groove and the second spline groove. The spring is located in the second spline groove to force the spline to abut against the cam.

5. An extended trailer hitch according to claim 1, characterized in that, The crossbeam is also equipped with positioning frames on both sides for fixing the wire harness.

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