Rear anti-collision beam structure of vehicle body

Abstract

The utility model relates to the technical field of automobile parts, and discloses an automobile body rear anti-collision beam structure which comprises a longitudinal beam, one end of the longitudinal beam is fixedly connected with an automobile body, the end, away from the automobile body, of the longitudinal beam is fixedly connected with a connecting beam, and the top of the longitudinal beam is fixedly connected with a cross beam. The longitudinal beam, the connecting beam and the cross beam are all fixedly connected with the special-shaped beam, the end, away from the longitudinal beam, the connecting beam and the cross beam, of the special-shaped beam is fixedly connected with a connecting plate, the outer portion of the connecting plate is fixedly connected with a pedal beam, and the special-shaped beam comprises a first connecting part, a second connecting part, a third connecting part, a fourth connecting part and a fifth connecting part. The special-shaped beam is fixedly connected with the longitudinal beam, the connecting beam and the cross beam through the first connecting part, the second connecting part and the third connecting part respectively; the vehicle body rear anti-collision beam structure solves the problems that in the prior art, the structure is complex, light-weight design of a vehicle body is not facilitated, installation is inconvenient, and operation needs to be conducted at the vehicle bottom.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a rear anti-collision beam structure of a vehicle body. Background Art

[0002] The anti-collision beam is a U-shaped groove stamped from cold-rolled steel plates and connected to the longitudinal beam of the frame. As the first barrier to the passive safety of the vehicle, the anti-collision beam is an important safety device that absorbs and mitigates external impact forces and protects the front and rear parts of the vehicle body.

[0003] In order to meet the requirements of footrest function and footrest space, the existing rear anti-collision beam is designed with connecting beams and connecting plates that are connected to the rear anti-collision beam and the longitudinal beam through lateral bolts. The structure is complex, which is not conducive to lightweight design of the vehicle body. In addition, the cantilever between the connection point and the footrest point is long, and the rigidity of the footrest point is difficult to ensure. Moreover, this anti-collision beam is inconvenient to install and needs to be operated under the vehicle. Utility Model Content

[0004] (1) Technical problems solved:

[0005] In response to the shortcomings of the existing technology, the utility model provides a rear anti-collision beam structure for the vehicle body, which has the advantages of simple structure, easy installation and strong rigidity of the footrest point. It solves the problem that the existing technology has a complex structure, is not conducive to lightweight design of the vehicle body, and the cantilever between the connection point and the footrest point is long, making it difficult to ensure the rigidity of the footrest point; and this anti-collision beam is inconvenient to install and needs to be operated under the vehicle.

[0006] (2) Technical solution:

[0007] In order to achieve the above-mentioned purpose of simple structure, easy installation and strong rigidity of the footrest point, the utility model provides the following technical solution: a rear anti-collision beam structure of a vehicle body, including a longitudinal beam, one end of the longitudinal beam is fixedly connected to the vehicle body, the end of the longitudinal beam away from the vehicle body is fixedly connected to a connecting beam, the top of the longitudinal beam is fixedly connected to a cross beam, the longitudinal beam, connecting beam and cross beam are all fixedly connected to the special-shaped beam, the end of the special-shaped beam away from the longitudinal beam, connecting beam and cross beam is fixedly connected to a connecting plate, and the outside of the connecting plate is fixedly connected to the footrest beam.

[0008] Preferably, the special-shaped beam includes a first connecting part, a second connecting part, a third connecting part, a fourth connecting part, a fifth connecting part and a footrest part, the footrest part is parallel to the top of the footrest beam and forms a footrest surface, the special-shaped beam is fixedly connected to the longitudinal beam, the connecting beam and the cross beam through the first connecting part, the second connecting part and the third connecting part respectively, and the special-shaped beam is fixedly connected to the fifth connecting part and the connecting plate through the fourth connecting part.

[0009] Preferably, there are two connecting beams, and both ends of the two connecting beams are fixedly connected to the longitudinal beam and the second connecting portion respectively.

[0010] Preferably, the connecting plate is C-shaped, the fourth connecting portion is fixedly connected to the inner top wall of the connecting plate, and the fifth connecting portion is fixedly connected to the inner side surface of the connecting plate.

[0011] Preferably, the interior of the footrest beam is fixedly connected to a support beam located on the outer side of the connecting plate, and the number of the support beams is two.

[0012] Preferably, the footrest beam is threadedly connected to the connecting plate through bolts, and the bolts pass through the connecting plate and extend into the interior of the special-shaped beam, so that the footrest beam is fixedly connected to the special-shaped beam.

[0013] (3) Beneficial effects:

[0014] Compared with the prior art, the present invention provides a rear anti-collision beam structure for a vehicle body, which has the following beneficial effects:

[0015] 1. The rear anti-collision beam structure of the vehicle body is provided with a footrest beam, and the footrest beam and the connecting plate are fixed to the special-shaped beam by bolts, so that the footrest beam can be directly installed outside the vehicle. By providing a footrest portion, the footrest portion and the top of the footrest beam form a footrest surface, which increases the footrest space and makes it more stable when someone stands. By providing fixed connections between various parts, the footrest beam is firmly fixed to the vehicle body, thereby achieving the purpose of simple structure and easy installation, and solving the problems of the prior art that the structure is complex, is not conducive to the lightweight design of the vehicle body, is inconvenient to install, and requires operation under the vehicle.

[0016] 2. The rear anti-collision beam structure of the vehicle body is provided with a longitudinal beam, a transverse beam and a special-shaped beam, and a cavity is formed between the longitudinal beam, the transverse beam and the special-shaped beam. The rigidity of the cavity is increased by the connecting beam, and the support of the special-shaped beam is further stabilized. At the same time, the rigidity of the footrest part of the longitudinal beam is also increased. By providing a connecting plate and connecting it with the special-shaped beam in two directions, the connection between the connecting plate and the special-shaped beam is made more secure. By providing a supporting beam and a threaded connection between the footrest beam, the connecting plate and the special-shaped beam, the rigidity of the footrest beam is increased, and the overall rigidity is increased, thereby achieving the purpose of strong footrest point rigidity and solving the problem in the prior art that the cantilever between the connecting point and the footrest point is long and the rigidity of the footrest point is difficult to ensure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the utility model;

[0019] Figure 3 It is a partial structural diagram of the utility model.

[0020] In the figure: 1. longitudinal beam; 2. connecting beam; 3. cross beam; 4. special-shaped beam; 41. first connecting part; 42. second connecting part; 43. third connecting part; 44. fourth connecting part; 45. fifth connecting part; 46. footrest part; 5. connecting plate; 6. footrest beam; 7. support beam. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-3 , a rear anti-collision beam structure of a vehicle body, including a longitudinal beam 1, one end of the longitudinal beam 1 is fixedly connected to the vehicle body, the end of the longitudinal beam 1 away from the vehicle body is fixedly connected to a connecting beam 2, the top of the longitudinal beam 1 is fixedly connected to a cross beam 3, the longitudinal beam 1, the connecting beam 2 and the cross beam 3 are all fixedly connected to the special-shaped beam 4, and the end of the special-shaped beam 4 away from the longitudinal beam 1, the connecting beam 2 and the cross beam 3 is fixedly connected to a connecting plate 5, the special-shaped beam 4 includes a first connecting portion 41, a second connecting portion 42, a third connecting portion 43, a fourth connecting portion 44, a fifth connecting portion 45 and a footrest portion, the special-shaped beam 4 is fixedly connected to the longitudinal beam 1, the connecting beam 2 and the cross beam 3 respectively through the first connecting portion 41, the second connecting portion 42 and the third connecting portion 43, the number of the connecting beams 2 is two, and the two connecting beams 2 are fixedly connected to the longitudinal beam 1 and the second connecting portion 42 respectively, the special-shaped beam 4 is fixedly connected to the fifth connecting portion 45 and the connecting plate 5 through the fourth connecting portion 44, the connecting plate 5 is C-shaped, the fourth connecting portion 44 is fixedly connected to the inner top wall of the connecting plate 5, the fifth connecting portion 45 is fixedly connected to the inner side of the connecting plate 5, the outside of the connecting plate 5 is fixedly connected to the foot beam 6, the foot beam 6 is threadedly connected to the connecting plate 5 by bolts, and the bolts pass through the connecting plate 5 and extend to the inside of the special-shaped beam 4, so that the foot beam 6 is fixedly connected to the special-shaped beam 4, the foot portion 46 is parallel to the top of the foot beam 6 and forms a foot surface, the inside of the foot beam 6 is fixedly connected to the support beam 7 located on the outer side of the connecting plate 5, and the number of support beams 7 is two.

[0023] In summary, the rear anti-collision beam structure of the vehicle body is provided with a footrest beam 6, and the footrest beam 6 and the connecting plate 5 are fixed to the special-shaped beam 4 by bolts, so that the footrest beam 6 can be directly installed outside the vehicle. By providing a footrest portion 46, the footrest portion 46 and the top of the footrest beam 6 form a footrest surface, which increases the footrest space, making it more stable when someone stands. By providing fixed connections between various parts, the footrest beam 6 is firmly fixed to the vehicle body, thereby achieving the purpose of simple structure and easy installation, solving the problem of complex structure in the prior art, which is not conducive to lightweight design of the vehicle body, inconvenient installation, and requires operation under the vehicle. A cavity is formed between the beam 3 and the special-shaped beam 4, the longitudinal beam 1, the cross beam 3 and the special-shaped beam 4, and the rigidity of the cavity is increased by the connecting beam 2, thereby making the support of the special-shaped beam 4 more stable, and also increasing the rigidity of the footrest part of the longitudinal beam 1. By setting the connecting plate 5 and the special-shaped beam 4 in two directions, the connection between the connecting plate 5 and the special-shaped beam 4 is made more secure. By setting the supporting beam 7 and the threaded connection between the footrest beam 6 and the connecting plate 5 and the special-shaped beam 4, the rigidity of the footrest beam 6 is increased, and then the overall rigidity is increased, achieving the purpose of strong footrest point rigidity, and solving the problem in the prior art that the cantilever between the connection point and the footrest point is long and the rigidity of the footrest point is difficult to ensure.

[0024] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0025] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rear anti-collision beam structure for a vehicle body, comprising a longitudinal beam (1), one end of the longitudinal beam (1) being fixedly connected to the vehicle body, characterized in that: The end of the longitudinal beam (1) away from the vehicle body is fixedly connected to a connecting beam (2), the top of the longitudinal beam (1) is fixedly connected to a cross beam (3), the longitudinal beam (1), the connecting beam (2) and the cross beam (3) are all fixedly connected to a special-shaped beam (4), the end of the special-shaped beam (4) away from the longitudinal beam (1), the connecting beam (2) and the cross beam (3) is fixedly connected to a connecting plate (5), and the outside of the connecting plate (5) is fixedly connected to a footrest beam (6).

2. The rear anti-collision beam structure of a vehicle body according to claim 1, characterized in that: The special-shaped beam (4) comprises a first connecting portion (41), a second connecting portion (42), a third connecting portion (43), a fourth connecting portion (44), a fifth connecting portion (45) and a footrest portion (46); the special-shaped beam (4) is fixedly connected to the longitudinal beam (1), the connecting beam (2) and the cross beam (3) via the first connecting portion (41), the second connecting portion (42) and the third connecting portion (43); the special-shaped beam (4) is fixedly connected to the fifth connecting portion (45) and the connecting plate (5) via the fourth connecting portion (44); and the footrest portion (46) is parallel to the top of the footrest beam (6) and forms a footrest surface.

3. The rear anti-collision beam structure of a vehicle body according to claim 2, characterized in that: There are two connecting beams (2), and both ends of the two connecting beams (2) are fixedly connected to the longitudinal beam (1) and the second connecting portion (42), respectively.

4. The rear anti-collision beam structure of a vehicle body according to claim 2, characterized in that: The connecting plate (5) is C-shaped, the fourth connecting portion (44) is fixedly connected to the inner top wall of the connecting plate (5), and the fifth connecting portion (45) is fixedly connected to the inner side surface of the connecting plate (5).

5. The rear anti-collision beam structure of a vehicle body according to any one of claims 1 to 4, characterized in that: The interior of the footrest beam (6) is fixedly connected to a support beam (7) located on one side of the exterior of the connecting plate (5), and the number of the support beams (7) is two.

6. The rear anti-collision beam structure of a vehicle body according to any one of claims 1 to 4, characterized in that: The footrest beam (6) is threadedly connected to the connecting plate (5) via bolts, and the bolts penetrate the connecting plate (5) and extend into the interior of the special-shaped beam (4), thereby fixedly connecting the footrest beam (6) to the special-shaped beam (4).

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