Front tow hook assembly structure
By designing a box-shaped mounting bracket that is larger at the top and smaller at the bottom and welding it to the front longitudinal beam, and combining it with an arc-shaped positioning flange and welding it to the towing hook, the problem of the front trailer hook being bulky and easily damaged is solved, achieving lightweighting and improved safety.
Patent Information
- Application Number
- CN202423196841.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-24
AI Technical Summary
Existing automobile front trailer hooks are bulky, occupy a large space, are easily damaged during towing, are difficult to repair, and lack effective energy absorption capacity in the event of a collision.
The mounting bracket adopts a box structure with a larger top and a smaller bottom, which is connected to the front longitudinal beam by welding. Combined with the arc-shaped positioning flange and welding with the towing hook, it achieves lightweight and enhanced structural strength to absorb collision energy.
It improves structural strength and towing capacity, reduces weight, achieves lightweight, and absorbs energy in the event of a collision to improve safety.
Smart Images
Figure CN223478692U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the front unhook of automobiles or pickup trucks, and more particularly to a front trailer hitch assembly structure. Background Art
[0002] In recent years, with the rapid development of the automotive industry, automobiles have become an indispensable means of transportation for people. Pickup trucks, as multi-purpose vehicles, are also seeing a gradual increase in market size. Pickup truck users generally have needs for light cargo transport or heavy off-roading. Heavy off-roading involves complex road conditions and relies heavily on the vehicle's ability to get out of trouble. When a vehicle breaks down and loses power, or when tires lose traction, or when the vehicle bottoms out and the tires are suspended in the air, towing is often necessary. The front tow hook is an essential component for vehicle towing. It consists of a hook body and a mounting structure, which is connected to welded nuts on the bottom of the front longitudinal beam using bolts. To ensure the structural strength of the connection, the mounting structure is large and bulky, occupying installation space and being quite heavy. Furthermore, during towing, due to the significant impact force, the front tow hook is subjected to very high stress, frequently resulting in bolt breakage and nut loosening, making repairs very difficult. Summary of the Invention
[0003] In view of this, the present invention proposes a front trailer hitch assembly structure. The mounting bracket of the present invention is a box structure, and the towing hook is welded to the front longitudinal beam through the mounting bracket. This not only ensures structural strength, but also makes the structure compact, convenient for installation and maintenance, and achieves lightweighting.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] The front trailer hitch assembly structure of this utility model includes a mounting bracket and a towing hook. The mounting bracket is a box structure with a larger top and a smaller bottom, and includes a bottom plate, a front side plate, a rear side plate, a left side plate, and a right side plate. The top of the front side plate has a mounting groove that mates with the bottom of the front longitudinal beam. The rear side plate is inclined and has a horizontally bent rearward edge at its upper part to form a welded edge that mates with the bottom of the front longitudinal beam.
[0006] The left and right side plates are trapezoidal structures that are wider at the top and narrower at the bottom. The top of the left and right side plates is higher than the bottom of the front longitudinal beam, and the protruding parts are welded to the side of the front longitudinal beam.
[0007] The base plate has a first positioning flange on both the left and right sides for limiting the traction hook, and the rear plate has a second positioning flange on both the left and right sides for cooperating with the inclined section of the traction hook. The traction hook is welded together with the first positioning flange and the second positioning flange.
[0008] The beneficial effects are as follows: The mounting bracket of this utility model has a box structure that is larger at the top and smaller at the bottom. Its upper opening is welded to the front longitudinal beam to form a relatively closed space, which greatly improves the structural strength. The drag strength of this utility model far exceeds the national standard. The mounting bracket of this utility model improves the structural strength and reduces the requirements for the mounting bracket plate. In actual processing, 2mm plate is sufficient to meet the requirements. Its weight is only 1 / 3 of the original mounting bracket, achieving lightweighting. The first positioning flange and the second positioning flange of this utility model are arc-shaped structures that cooperate with the traction hook, which have a positioning function and facilitate the welding of the traction hook and the mounting bracket.
[0009] Preferably, the front edges of the left and right side plates are integrally formed with the front side plate, the bottom edges of the left and right side plates are clearance-fitted with the first positioning flange, and the oblique edges of the left and right side plates are clearance-fitted with the second positioning flange; the top edges of the left and right side plates have a notch running from top to bottom in the middle. The beneficial effects are: the left and right side plates of the mounting bracket are both connected to the front side plate via their front vertical edges, their bottom edges are clearance-fitted with the bottom plate, and their oblique edges are clearance-fitted with the rear side plate. In the event of a frontal collision, this allows the mounting bracket to have a certain deformation space, which can absorb some of the collision energy and improve safety; the notch further increases the deformation space to absorb more collision energy. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of this utility model.
[0011] Figure 2 yes Figure 1 The main view.
[0012] Figure 3 yes Figure 1 Top view.
[0013] Figure 4 This is a diagram showing the installation state of this utility model at the front of the front longitudinal beam.
[0014] Figure 5 yes Figure 4 The main view. DETAILED DESCRIPTION
[0015] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings. These embodiments are implemented based on the technical solution of this utility model and provide detailed implementation methods and specific operation processes. However, the protection scope of this utility model is not limited to the following embodiments.
[0016] It should be noted that in the description of this utility model, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.
[0017] It should be noted that in the description of this utility model, the term "front" refers to the direction in which the vehicle is moving forward, and the opposite is "rear"; "left" refers to the left side of the driver's seat, and "right" refers to the right side of the driver's seat.
[0018] like Figure 1-4 As shown, the front trailer hitch assembly structure of this utility model includes a mounting bracket (which can be made of a 2mm thick steel plate) and a towing hook 1 (made of bent steel bars) welded to the mounting bracket. The mounting bracket is a box-shaped structure with a larger top and a smaller bottom, including a bottom plate, a front side plate 2, a rear side plate 3, a left side plate 4, and a right side plate 5. The top of the front side plate 2 has a mounting groove that matches the bottom of the front longitudinal beam 6, and the front longitudinal beam 6 is placed in the mounting groove. The rear side plate 3 is arranged at an angle, and the upper part of the rear side plate 3 has a horizontally bent rearward edge 7 that matches the bottom of the front longitudinal beam 6. The front longitudinal beam 6 is welded together with the mounting groove and the welding edge 7, thereby fixing the mounting bracket to the front longitudinal beam 6. The left side plate 4 and the right side plate 5 are trapezoidal structures with a wider top and a narrower bottom. The top height of the left side plate 4 and the right side plate 5 is higher than the bottom surface of the front longitudinal beam 6. The higher parts of the left side plate 4 and the right side plate 5 are welded together with the side of the front longitudinal beam 6 to further improve the structural strength and thus ensure the towing strength.
[0019] The base plate has first positioning flanges 8 on both the left and right sides to limit the lower horizontal section 1.3 of the traction hook 1. The rear side plate 3 has second positioning flanges 9 on both the left and right sides to cooperate with the inclined section 1.1 and upper horizontal section 1.2 of the traction hook 1. Both the first positioning flanges 8 and the second positioning flanges 9 are arc-shaped structures that cooperate with the traction hook 1, which not only position the traction hook 1 but also facilitate the welding between the traction hook 1 and the mounting bracket. In actual installation, the traction hook 1 can be inserted into the first positioning flanges 8 and the second positioning flanges 9 from bottom to top, so that the right end of the upper horizontal section 1.2 of the traction hook 1 is aligned with the right end of the welding edge 7, and the hook ring 1.4 of the traction hook 1 is located on the front side of the mounting bracket. Then, the traction hook 1 is welded to the positioning flanges to achieve a reliable connection between the mounting bracket and the traction hook 1.
[0020] The mounting bracket of this utility model has a box structure that is larger at the top and smaller at the bottom. Its upper opening is welded to the front longitudinal beam 6 to form a relatively closed space, which greatly improves the structural strength. The drag strength of this utility model far exceeds the national standard. The mounting bracket of this utility model improves the structural strength and reduces the requirements for the mounting bracket plate. In actual processing, 2mm plate is sufficient to meet the requirements. Its weight is only 1 / 3 of the original mounting bracket, which achieves lightweighting. The first positioning flange 8 and the second positioning flange 9 of this utility model are arc-shaped structures that cooperate with the traction hook 1 and have a positioning function, which facilitates the welding between the traction hook 1 and the mounting bracket.
[0021] In actual processing, the mounting bracket of this utility model is integrally formed from steel plate. Its left side plate 4 and right side plate 5 are only connected to the front side plate 2 at the front. The bottom edge of the left side plate 4 and right side plate 5 is clearance-fitted with the bottom plate, and its inclined edge is also clearance-fitted with the rear side plate 3. The front side plate 2, the bottom plate and the rear side plate 3 are connected together in sequence, so that the mounting bracket has a certain deformation space, which can absorb some collision energy and improve safety.
[0022] The top edge of the left side plate 4 and the right side plate 5 has a top-down notch 10, which further increases the deformation space to absorb more collision energy and improve safety.
[0023] In actual assembly, the utility model will be arranged according to... Figure 4 The tow hook assembly is positioned below the front end of the front longitudinal beam 6 as shown, and its upper opening is then welded to the front longitudinal beam 6. This utility model's front tow hook assembly structure is suitable for both left-hand drive and right-hand drive vehicles, exhibiting excellent versatility.
[0024] Finally, it should be emphasized that the above description is merely a preferred embodiment of this utility model and is not intended to limit this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Therefore, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A front trailer hitch assembly structure, comprising a mounting bracket and a towing hook, characterized in that: The mounting bracket is a box structure with a larger top and a smaller bottom, and includes a bottom plate, a front side plate, a rear side plate, a left side plate, and a right side plate. The top of the front side plate has a mounting groove that mates with the bottom of the front longitudinal beam. The rear side plate is arranged at an angle, and its upper part has a horizontally bent rearward edge that mates with the bottom of the front longitudinal beam. The left and right side plates are trapezoidal structures that are wider at the top and narrower at the bottom. The top of the left and right side plates is higher than the bottom of the front longitudinal beam, and the protruding parts are welded to the side of the front longitudinal beam. The base plate has a first positioning flange on both the left and right sides for limiting the traction hook, and the rear plate has a second positioning flange on both the left and right sides for cooperating with the inclined section of the traction hook. The traction hook is welded together with the first positioning flange and the second positioning flange.
2. The front trailer hitch assembly structure according to claim 1, characterized in that: The front edges of the left and right side plates are integrally formed with the front side plate, the bottom edges of the left and right side plates are fitted with the first positioning flange with a gap, and the oblique edges of the left and right side plates are fitted with the second positioning flange with a gap; the top edges of the left and right side plates have a notch from top to bottom in the middle.