Reinforced rear trailer hook

Abstract

The utility model discloses a reinforced rear tow hook, which belongs to the technical field of automobile parts and comprises a rear tow hook structure assembly and a rear longitudinal beam assembly. The rear trailer hook structure assembly is connected with the rear longitudinal beam assembly; the rear tow hook structure assembly comprises a tow hook and a connecting plate; the tow hook is fixedly connected with the connecting plate; the rear longitudinal beam assembly comprises a reinforcing plate and a longitudinal beam; reinforcing plates are arranged on the inner walls of the longitudinal beams; the connecting plate is connected with a longitudinal beam provided with a reinforcing plate; wherein the thickness of the reinforcing plate is 1.0-1.5 times that of the longitudinal beam. The U-shaped rear trailer hook structure assembly is connected with the rear longitudinal beam assembly through the bolts, the reinforcing plates are arranged at the mounting points in the longitudinal beam and are welded with the longitudinal beam body, double reinforcement is carried out from the arrangement form and the structural design, the overall structural strength is higher, manufacturing is easy, mounting is easy, cost is low, and the structure is simple. And subsequent modification is also facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile parts, and particularly relates to a reinforced rear trailer hook. Background Art

[0002] As SUVs (Sports Utility Vehicles) are widely welcomed by the public, the current There are more and more load-bearing hard-core off-road models such as off-road hard-core SUVs. This type of model is comfortable in urban conditions and can cope with medium-intensity off-road conditions. The structural design of the rear trailer hook plays a vital role in the use of the vehicle, especially when rescuing a vehicle. The rear trailer hook needs to have sufficient strength. If the structural design and its strength are insufficient, the rescue will not be successful and may even cause life-threatening danger. Considering the complexity of off-road rescue conditions, the structural design of the rear trailer hook is required to be higher. The current cylindrical trailer hook with a round hole cannot meet the use requirements of this load-bearing hard-core off-road vehicle by being screwed with the anti-collision beam and the energy absorption box welding structure. Once it fails during use, it will seriously affect the user's life and property safety. Therefore, a reinforced rear trailer hook is needed. Utility Model Content

[0003] In view of the above problems, the utility model discloses a reinforced rear trailer hook, comprising: a rear trailer hook structure assembly and a rear longitudinal beam assembly;

[0004] The rear trailer hook structure assembly is connected to the rear longitudinal beam assembly;

[0005] The rear trailer hook structure assembly includes a trailer hook and a connecting plate;

[0006] The trailer hook is fixedly connected to the connecting plate;

[0007] The rear longitudinal beam assembly includes a reinforcement plate and a longitudinal beam;

[0008] A reinforcement plate is provided on the inner wall of the longitudinal beam;

[0009] The connecting plate is connected to the longitudinal beam provided with the reinforcing plate;

[0010] Among them, the thickness of the reinforcement plate is 1.0-1.5 times the thickness of the longitudinal beam.

[0011] Furthermore, the end of the connecting plate is provided with a flange structure, which is in the shape of a groove as a whole.

[0012] Furthermore, the connecting plate is provided with a plurality of through holes.

[0013] Furthermore, the connecting plate is provided with reinforcing ribs;

[0014] The reinforcing rib is oval.

[0015] Furthermore, the trailer hitch is U-shaped.

[0016] Furthermore, the rear longitudinal beam assembly further includes: a rear longitudinal beam end plate;

[0017] The rear longitudinal beam end plate is connected to one end of the longitudinal beam.

[0018] Furthermore, a number of through holes are provided on the reinforcing plate and the longitudinal beam;

[0019] The through holes on the reinforcing plate correspond to the through holes on the longitudinal beam.

[0020] Furthermore, the rear longitudinal beam assembly further includes: projection welding nuts;

[0021] The projection welding nuts are fixedly arranged on the reinforcing plate and correspond to the through holes of the reinforcing plate.

[0022] Furthermore, the rear trailer hitch structure assembly further includes: mounting bolts;

[0023] The connecting plate is connected to the projection welding nuts on the reinforcing plate through the mounting bolts.

[0024] Furthermore, the materials of the connecting plate, the reinforcing plate and the longitudinal beam are cold-formed hot-rolled automotive structural steel plates.

[0025] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model changes the layout form of the rear trailer hitch of the previous models and designs through a unique reinforcing structure. The U-shaped rear trailer hitch structure assembly is connected to the rear longitudinal beam assembly through bolts. Inside the longitudinal beam, a reinforcing plate is arranged at the installation point, and the reinforcing plate is welded to the longitudinal beam body. Double reinforcement is carried out from the layout form and its structural design. The overall structural strength is greater, which can meet complex rescue working conditions, ensure the smooth progress of rescue, and is easy to manufacture, simple to install, low in cost, and also conducive to subsequent modification.

[0026] Other features and advantages of the present utility model will be described in the following specification, and part of them will be obvious from the specification, or will be understood by implementing the present utility model. The objectives and other advantages of the present utility model can be achieved and obtained through the structures pointed out in the specification and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0028] Figure 1 Shows a schematic structural view of a reinforced rear trailer hitch according to an embodiment of the present invention;

[0029] Figure 2 Shows a schematic structural view of a rear trailer hitch structure assembly according to an embodiment of the present invention;

[0030] Figure 3 Shows a schematic structural view of a rear longitudinal beam assembly according to an embodiment of the present invention;

[0031] Figure 4 Shows a schematic installation view of a reinforcement plate according to an embodiment of the present invention.

[0032] Reference numerals: 1, rear trailer hitch structure assembly; 11, trailer hitch; 12, connecting plate; 13, weld; 14, flanging structure; 15, mounting bolt; 16, reinforcing rib;

[0033] 2, rear longitudinal beam assembly; 21, reinforcement plate; 22, welding spot; 23, rear longitudinal beam end plate; 24, projection welding nut; 25, projection welding nut weld; 26, longitudinal beam. Detailed implementation manners

[0034] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0035] Figure 1 Shows a schematic structural view of a reinforced rear trailer hitch according to an embodiment of the present invention. As Figure 1 shown, a reinforced rear trailer hitch proposed by the present invention includes: a rear trailer hitch structure assembly 1 and a rear longitudinal beam assembly 2;

[0036] The rear trailer hitch structure assembly 1 is connected to the rear longitudinal beam assembly 2 through a detachable structure.

[0037] Figure 2 Shows a schematic structural view of a rear trailer hitch structure assembly according to an embodiment of the present invention. As Figure 2 shown, the rear trailer hitch structure assembly 1 includes a trailer hitch 11 and a connecting plate 12;

[0038] The trailer hitch 11 is fixedly connected to the connecting plate 12; by way of example, the trailer hitch 11 is connected to the connecting plate 12 by welding; the connecting plate 12 is arranged parallel to the longitudinal beam 26;

[0039] Figure 3 Shows a structural schematic diagram of a rear longitudinal beam assembly according to an embodiment of the present utility model. As Figure 3 shown, the rear longitudinal beam assembly 2 includes a reinforcing plate 21 and a longitudinal beam 26;

[0040] The reinforcing plate 21 is provided on the inner wall of the longitudinal beam 26;

[0041] The connecting plate 12 is connected to the longitudinal beam 26 provided with the reinforcing plate 21 through a detachable structure;

[0042] Among them, the thickness of the reinforcing plate 21 is 1.0 - 1.5 times the thickness of the longitudinal beam 26. Preferably, the thickness of the reinforcing plate 21 is 1.2 times the thickness of the longitudinal beam 26.

[0043] The trailer hitch 11 is used for the connection between the trailer rope and the vehicle;

[0044] The connecting plate 12 is used for welding the trailer hitch 11 and is bolt - connected to the longitudinal beam 26;

[0045] The reinforcing plate 21 is used to play a strengthening role, for bolt fastening and enhancing the local stiffness and strength during use;

[0046] The longitudinal beam 26 is used to fix the rear trailer hitch structure assembly 1.

[0047] Exemplarily, as Figure 4 shown, the reinforcing plate 21 is welded on the inner wall of the longitudinal beam 26; there are four rows of welding spots 22 arranged between the two, and the specific distribution is as follows: the first row has three welding spots 22; the second row has two welding spots 22; the third row has two welding spots 22; the fourth row has three welding spots 22. All the welding spots 22 are spaced apart, and the specific spacing can be determined according to the actual situation.

[0048] In some other design methods, the trailer hitch 11 and the connecting plate 12 can adopt an integrally formed design, which can effectively improve the overall strength of the rear trailer hitch structure assembly 1.

[0049] The utility model discloses a reinforced rear trailer hitch, which changes the layout form of the rear trailer hitch of previous vehicle models and is designed through a unique reinforcement structure. The U-shaped rear trailer hitch structure assembly 1 is connected to the rear longitudinal beam assembly 2 by bolts. Inside the longitudinal beam 26, a reinforcing plate 21 is arranged at the installation point, and the reinforcing plate 21 is welded to the body of the longitudinal beam 26. Double reinforcement is carried out from the layout form and its structural design, the overall structural strength is greater, it can meet complex rescue working conditions, ensure the smooth progress of rescue, and is easy to manufacture, simple to install, low in cost, and also beneficial to subsequent modification; the usage scenario is considered at the beginning of the design, providing a precondition for modification, and reinforcement is carried out in full combination with the scenario from the layout form and position to the design of the structure itself, and the maintenance convenience is also improved.

[0050] As Figure 2 shown, in some embodiments, flanging structures 14 are provided at both the upper and lower ends of the connecting plate 12, and the connecting plate 12 is integrally in a groove shape.

[0051] The trailer hitch 11 is divided into a connecting end and a towing end. The connecting end is connected to the connecting plate 12 by welding, and the flanging structures 14 on both sides of the connecting plate 12 are connected to the trailer hitch 11 by welding. The specific positions of the welds 13 are as Figure 2 shown. There are eight welds 13, and four welds 13 are provided on each side.

[0052] The towing end of the trailer hitch 11 is used to connect with the steel wire rope for rescue.

[0053] The flanging structure 14 is connected to the two connecting ends of the trailer hitch 11 by welding, which can effectively strengthen the overall strength of the rear trailer hitch structure assembly 1.

[0054] In some other design methods, multiple reinforcing rods can be arranged between the two connecting ends of the trailer hitch 11 to improve the strength of the trailer hitch 11.

[0055] In some embodiments, a number of through holes are provided on the connecting plate 12 for the bolts 15 to pass through.

[0056] As Figure 2 shown, in some embodiments, reinforcing ribs 16 are provided on the connecting plate 12. The reinforcing ribs 16 are oval.

[0057] Among them, the reinforcing ribs 16 are arranged on the surface of the connecting plate 12 where it is connected to the trailer hitch 11.

[0058] Setting the reinforcing ribs 16 can improve the strength of the connecting plate 12, thereby improving the overall structural strength of the rear trailer hitch structure assembly 1.

[0059] Although the reinforcing rib 16 is exemplarily introduced above with an oval shape as an example, the present invention is not limited thereto. The reinforcing rib 16 can be designed in various forms, such as rectangular, square, circular, annular, strip-shaped and other shapes. Those skilled in the art can design or improve according to the specific actual situation and the reinforcing design principle of the present invention, as long as the reinforcing design principle of the present invention can be realized.

[0060] In some embodiments, the trailer hitch 11 is in a bent U shape. On the one hand, it is convenient for the trailer hitch 11 to be connected with rescue tools such as steel wire ropes. On the other hand, the strength of the trailer hitch 11 can be effectively improved.

[0061] The cross-section of the trailer hitch 11 is circular, and the trailer hitch 11 is formed by bending a cylindrical steel bar.

[0062] Although the above takes the cross-section of the trailer hitch 11 as circular as an example for exemplary introduction, the present invention is not limited thereto. The cross-section of the trailer hitch 11 can be designed in various forms, such as oval, rectangular, square and other shapes. Those skilled in the art can make a comprehensive consideration according to the specific actual situation and the reinforcing design principle of the present invention, as long as the reinforcing design principle of the present invention can be realized.

[0063] As Figure 3 shown, in some embodiments, the rear longitudinal beam assembly 2 further includes: a rear longitudinal beam end plate 23;

[0064] The rear longitudinal beam end plate 23 is connected to one end of the longitudinal beam 26.

[0065] The rear longitudinal beam end plate 23 is used for installing an anti-collision beam and enhancing the cross-section stability of the longitudinal beam 26.

[0066] In some embodiments, a plurality of through holes are provided on the reinforcing plate 21 and the longitudinal beam 26 for the mounting bolts 15 to pass through;

[0067] The through holes on the reinforcing plate 21 are correspondingly arranged with the through holes on the longitudinal beam 26.

[0068] As Figure 3 shown, in some embodiments, the rear longitudinal beam assembly 2 further includes: a projection welding nut 24;

[0069] The projection welding nut 24 is fixedly arranged on the reinforcing plate 21 and corresponds to the through hole of the reinforcing plate 21.

[0070] Exemplarily, the projection welding nut 24 is fixedly installed on the reinforcing plate 21 by welding. The specific projection welding nut weld 25 is as Figure 3 shown, which is convenient for the rear trailer hitch structure assembly 1 to be quickly installed on the longitudinal beam 26 provided with the reinforcing plate 21.

[0071] AsFigure 2 As shown, in some embodiments, the rear trailer hitch structure assembly 1 further includes: mounting bolts 15;

[0072] The connecting plate 12 is connected to the projection welding nut 24 on the reinforcing plate 21 through the mounting bolts 15. The connection method is simple, the connection is firm, and it is not easy to fail.

[0073] In some embodiments, the materials of the connecting plate 12, the reinforcing plate 21, and the longitudinal beam 26 are cold-formed hot-rolled automotive structural steel plates (QSTE420TM).

[0074] In the description of the embodiments of the present invention, it should be understood that the terms "mounted", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the creation of the present invention can be understood through specific situations.

[0075] It should be understood that the "one embodiment" or "an embodiment" mentioned throughout the specification means that the specific features, structures, or characteristics related to the embodiment are included in at least one embodiment of the present disclosure. Therefore, the "in one embodiment" or "in an embodiment" that appears throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that in various embodiments of the present disclosure, the magnitudes of the serial numbers of the above processes do not mean the order of execution is prior or subsequent. The order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present disclosure. The serial numbers of the embodiments of the present disclosure above are only for description and do not represent the advantages or disadvantages of the embodiments.

[0076] Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An enhanced rear trailer hitch, characterized in that, Including: Rear trailer hook structure assembly (1) and rear longitudinal beam assembly (2); The rear trailer hook structure assembly (1) is connected to the rear longitudinal beam assembly (2); The rear trailer hook structure assembly (1) includes a trailer hook (11) and a connecting plate (12); The trailer hook (11) is fixedly connected to the connecting plate (12); The rear longitudinal beam assembly (2) includes a reinforcing plate (21) and a longitudinal beam (26); The reinforcing plate (21) is arranged on the inner wall of the longitudinal beam (26); The connecting plate (12) is connected to the longitudinal beam (26) provided with the reinforcing plate (21); Wherein, the thickness of the reinforcing plate (21) is 1.0 - 1.5 times the thickness of the longitudinal beam (26).

2. The enhanced rear trailer hitch according to claim 1, wherein The end of the connecting plate (12) is provided with a flanging structure (14), which is integrally in a groove shape.

3. The enhanced rear trailer hitch according to claim 1 or 2, characterized in that, A plurality of through holes are arranged on the connecting plate (12).

4. The enhanced rear trailer hitch according to claim 1 or 2, characterized in that, Reinforcing ribs (16) are arranged on the connecting plate (12); The reinforcing ribs (16) are oval.

5. The enhanced rear trailer hitch according to claim 1, wherein The trailer hook (11) is U-shaped.

6. The enhanced rear trailer hitch according to claim 1, characterized in that, The rear longitudinal beam assembly (2) further includes: a rear longitudinal beam end plate (23); The rear longitudinal beam end plate (23) is connected to one end of the longitudinal beam (26).

7. The enhanced rear trailer hitch according to claim 1, wherein A plurality of through holes are arranged on the reinforcing plate (21) and the longitudinal beam (26); The through holes on the reinforcing plate (21) correspond to the through holes on the longitudinal beam (26).

8. The reinforced rear tow hook according to claim 7, characterized in that, The rear longitudinal beam assembly (2) further includes: projection welding nuts (24); The projection welding nuts (24) are fixedly arranged on the reinforcing plate (21) and correspond to the through holes of the reinforcing plate (21).

9. The enhanced rear trailer hitch according to claim 8, wherein, The rear trailer hook structure assembly (1) further includes: mounting bolts (15); The connecting plate (12) is connected to the projection welding nuts (24) on the reinforcing plate (21) through the mounting bolts (15).

10. The enhanced rear trailer hitch according to claim 1, characterized in that, The materials of the connecting plate (12), the reinforcing plate (21) and the longitudinal beam (26) are cold-formed hot-rolled automotive structural steel plates.

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