CN115339274A - A kind of car trailer ball assembly - Google Patents

Abstract

An automobile trailer ball assembly, comprising a trailer ball assembly, a rear bumper beam, a beam reinforcement assembly, a trailer arm, an energy-absorbing box, and a rear body of the rear longitudinal beam; the trailer ball assembly is fixedly mounted on the outer middle of the rear bumper beam, The inner side of the crossbeam is provided with a crossbeam reinforcement assembly; two trailer arms are respectively fixedly arranged at both ends of the inner side of the rear crossbeam, and each trailer arm is sequentially inserted into the energy-absorbing box and the rear body of the rear longitudinal beam for fixed connection. The trailer ball assembly of the present invention has a symmetrical and reasonable layout of the force transmission path and load-bearing position, large towing mass, and greater load-carrying capacity; Simple and easy to mass produce.

Description

A car tow ball assembly

technical field

The invention belongs to the technical field of automobile tow hooks, in particular to an automobile tow ball assembly.

Background technique

As consumers have higher and higher requirements for the functions of cars, the car is required not only to carry people, but also to have the ability to tow a caravan. The tow ball assembly is an indispensable key component for towing a caravan. The role of towing a motorhome. The towing mass of the existing tow ball assembly is small, and the towed caravan is prone to structural fractures, resulting in separation from the vehicle in front, resulting in serious traffic accidents, especially when driving on high-speed roads or slopes, the tow ball assembly bears a large force, which is easy to Cause damage to the tow ball assembly.

Contents of the invention

The purpose of the present invention is to provide a car tow ball assembly to solve the problem that the towing mass of the existing tow ball assembly is small, and the towed caravan is prone to structural breakage, resulting in separation from the vehicle in front, causing serious traffic accidents, especially on high-speed roads. Or when driving on a slope, the tow ball assembly bears a relatively large force, which is likely to cause damage to the tow ball assembly.

To achieve the above object, the present invention adopts the following technical solutions:

An automobile trailer ball assembly, comprising a trailer ball assembly, a rear bumper beam, a beam reinforcement assembly, a trailer arm, an energy-absorbing box, and a rear body of the rear longitudinal beam; the trailer ball assembly is fixedly mounted on the outer middle of the rear bumper beam, The inner side of the crossbeam is provided with a crossbeam reinforcement assembly; two trailer arms are respectively fixedly arranged at both ends of the inner side of the rear crossbeam, and each trailer arm is sequentially inserted into the energy-absorbing box and the rear body of the rear longitudinal beam for fixed connection.

Further, the car ball assembly includes a tow ball body and a tow hook, the tow ball body and the tow hook are connected by bolts, and the tow hook is connected to the rear crossbeam by bolts.

Further, the crossbeam strengthening component includes a rear-guaranteed crossbeam reinforcement plate and reinforcing ribs; the rear-guaranteed crossbeam reinforcement plate is arranged on the inner side of the rear-guaranteed crossbeam, and the reinforcing ribs are arranged on both ends of the rear-guaranteed crossbeam, and the rear-guaranteed crossbeam is strengthened by welding boards and ribs.

Further, the reinforcement plate of the rear cross beam is a hollow plate.

Further, the number of reinforcing ribs is at least three, and all reinforcing ribs are arranged alternately.

Further, the trailer arm is connected to the end of the rear crossbeam by welding, and the trailer arm and the reinforcing rib are connected by welding.

Further, the trailer arm is inserted into the energy-absorbing box and the rear body of the rear longitudinal beam, and are respectively connected by projection welding nuts.

Further, the side of the energy-absorbing box close to the rear body of the rear longitudinal beam is fixedly connected with a rear safety installation end plate through bolts, and the rear safety installation end plate and the rear body of the rear longitudinal beam are connected with a rear reinforcement of the rear longitudinal beam through bolts. plate.

Further, welding gaps are provided on the upper sides of both ends of the rear crossbeam.

Compared with the prior art, the present invention has the following technical effects:

The trailer ball assembly of the present invention has a symmetrical and reasonable layout of the force transmission path and load-bearing position, large towing mass, and greater load-carrying capacity; Simple, easy mass production;

The trailer arm of the present invention is overlapped with reinforcing ribs, which is beneficial to improve the local strength; the trailer arm of the present invention is connected with the rear body of the rear longitudinal beam and the energy-absorbing box by projection welding nuts, which is easy to install and disassemble;

The rear beam reinforcement plate of the present invention is a hollow structure, which can achieve the purpose of weight reduction;

In the present invention, welding gaps are arranged on the upper sides of both ends of the rear crossbeam, which can not only achieve the purpose of weight reduction, but also effectively improve the stability of the structural connection.

Description of drawings

Fig. 1 is the assembly diagram of the trailer ball assembly of the present invention;

Fig. 2 is a side view of the tow ball assembly;

Figure 3 is an axonometric view of the tow ball assembly.

in:

1. Trailer ball body 2. Trailer hook 3. Rear beam 4. Reinforcement plate for rear beam 5. Rib 6. Energy-absorbing box; 7. End plate for rear guard 8. Reinforcement plate for rear longitudinal beam 9. Rear The rear body of the longitudinal beam 10. Trailer arm; 11. Welding gap.

Detailed ways

The present invention is further described below in conjunction with accompanying drawing:

Please refer to Fig. 1 to Fig. 3, the purpose of the present invention is to address the deficiencies of the prior art. The purpose of the present invention is to provide a car tow ball assembly with a stable structure, safety and effectiveness, and greater towing quality, so as to meet the functional needs of consumers. The assembly not only reasonably distributes the force situation to improve the structural strength, but also increases the structural durability and stability of the tow ball assembly, prolonging the service life.

The invention provides an automobile trailer ball assembly, comprising a trailer ball assembly, a rear beam 3, a beam reinforcement assembly, a trailer arm 10, an energy absorbing box 6 and a rear body 9 of the rear longitudinal beam; the trailer ball assembly is fixedly mounted on the rear beam The outer middle part of the crossbeam 3 and the inner side of the rear crossbeam 3 are provided with a crossbeam reinforcement assembly; two trailer arms 10 are fixedly arranged at both ends of the inner side of the rear crossbeam 3 respectively, and each trailer arm 10 is sequentially inserted into the energy absorbing box 6 and the rear Longitudinal beam rear part body 9 is fixedly connected.

The tow ball body 1 and the tow hook 2 are connected by bolts, which are easy to install and disassemble, and the tow hitch 2 is connected to the rear crossbeam 3 by bolts;

The rear crossbeam 3 is connected to the rear crossbeam reinforcing plate 4, the trailer arm 10, and the ribs 5 by welding;

The trailer arm 10 is inserted into the energy-absorbing box 6 and the rear body 9 of the rear longitudinal beam, respectively connected by projection welding nuts;

The trailer arm 10 is connected to the reinforcing rib 5 by welding, and the energy-absorbing box 6 is connected to the end plate 7 of the rear protection installation and the rear reinforcement plate 8 of the rear longitudinal beam by bolts, so as to achieve the purpose of connecting the trailer ball assembly with the vehicle body. The reinforcement ribs on the arm can reasonably distribute the load-bearing positions, effectively improve the structural stability, and make the load-bearing capacity meet the requirements.

Example:

Taking three reinforcing ribs as an example, the crossbeam reinforcement assembly includes a rear crossbeam reinforcement plate 4 and a reinforcement rib 5; The rear beam 3 is connected to the reinforcement plate 4 and the rib 5 of the rear beam by welding.

The number of reinforcing ribs 5 is three, and the three reinforcing ribs are arranged in a staggered manner, and are all vertically welded to the inner two ends of the rear crossbeam 3 .

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present invention can still be Any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention shall fall within the protection scope of the claims of the present invention.

Claims (9)

1. An automobile trailer ball assembly is characterized by comprising a trailer ball component, a rear protective beam (3), a beam reinforcing component, a trailer arm (10), an energy absorption box (6) and a rear longitudinal beam rear body (9); the trailer ball assembly is fixedly arranged in the middle of the outer side of the rear protection cross beam (3), and a cross beam reinforcing assembly is arranged on the inner side of the rear protection cross beam (3); two trailer arms (10) are respectively and fixedly arranged at two ends of the inner side of the rear protective beam (3), and each trailer arm (10) is sequentially inserted into the energy absorption box (6) and the rear longitudinal beam rear body (9) to be fixedly connected.

2. The automobile trailer ball assembly as claimed in claim 1, wherein the ball assembly comprises a trailer ball body (1) and a trailer hook (2), the trailer ball body (1) and the trailer hook (2) are connected through bolts, and the trailer hook (2) is connected with the rear protective beam (3) through bolts.

3. The ball assembly of claim 1, wherein the beam reinforcement assembly comprises a rear fender beam reinforcement plate (4) and a reinforcement rib (5); the rear protective beam reinforcing plate (4) is arranged on the inner side of the rear protective beam (3), the reinforcing ribs (5) are arranged at two ends of the inner side of the rear protective beam (3), and the rear protective beam (3) is connected with the rear protective beam reinforcing plate (4) and the reinforcing ribs (5) through welding.

4. A vehicle hitch ball assembly as claimed in claim 3, in which the rear fender beam stiffening panel (4) is a hollowed out panel.

5. A vehicle hitch ball assembly as claimed in claim 3, wherein there are at least three reinforcing ribs (5) and all of the ribs are staggered.

6. The vehicle trailer ball assembly as claimed in claim 3, wherein the trailer arm (10) is connected with the end of the rear protective beam (3) by welding, and the trailer arm (10) is connected with the reinforcing rib (5) by welding.

7. The ball assembly of claim 1, wherein the trailer arm (10) is inserted into the crash box (6) and the rear body (9) of the rear longitudinal member and is connected thereto by projection-welded nuts.

8. The automobile trailer ball assembly as claimed in claim 1, wherein a rear security mounting end plate (7) is fixedly connected to one side of the energy absorption box (6) close to the rear longitudinal beam rear body (9) through a bolt, and a rear longitudinal beam rear reinforcing plate (8) is connected between the rear security mounting end plate (7) and the rear longitudinal beam rear body (9) through a bolt.

9. The vehicle trailer ball assembly of claim 1, wherein the rear fender beam is provided with welding notches (11) at the upper sides of both ends.

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