Rear floor longitudinal beam assembly and vehicle

Abstract

The utility model discloses a rear floor longitudinal beam assembly which comprises a rear floor longitudinal beam body and a longitudinal beam connecting plate, one end of the rear floor longitudinal beam body is provided with a skid hole, and the longitudinal beam connecting plate is fixedly connected with the other end of the rear floor longitudinal beam body. According to the rear floor longitudinal beam assembly, the skid holes are formed in the rear floor longitudinal beam body, and the longitudinal beam connecting plates are additionally arranged on the rear floor longitudinal beam body, so that platform and general rear floor longitudinal beam assemblies with different axle distances are realized, the platform and general design of the rear floor longitudinal beam assembly is improved, and the development cost is reduced; and flexible production of vehicle types with different wheelbases is realized. The utility model further discloses a vehicle.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobiles. Specifically, the invention relates to a rear floor longitudinal beam assembly and a vehicle. Background Art

[0002] At present, for vehicles with different wheelbases, rear floor longitudinal beams of different lengths need to be developed to meet the requirements of wheelbase changes. Therefore, developing a rear floor longitudinal beam for each vehicle model is not conducive to the platformization and generalization strategies, and flexible production cannot be achieved in factories of different vehicle models, resulting in a significant increase in development and production costs.

[0003] Chinese Patent with application number 202110586824.1 discloses a wheelbase change part, a floor assembly and a vehicle, belonging to the technical field of vehicles. The wheelbase change part includes a body, a rear section of the middle channel, two rear sections of the middle channel side beams, two rear sections of the front floor longitudinal beams and two rear sections of the thresholds; the rear section of the middle channel is fixed on the body and is located in the middle in the width direction of the body; the two rear sections of the middle channel side beams, the two rear sections of the front floor longitudinal beams and the two rear sections of the thresholds are respectively symmetrical about the central axis of the body and are fixed on the body in sequence along the width direction of the body from the side close to the rear section of the middle channel to the side far from the rear section of the middle channel.

[0004] It is desired to provide an improved rear floor longitudinal beam assembly, especially regarding how to achieve the platformization and generalization design of the rear floor longitudinal beam assembly and reduce the development cost. Summary of the Utility Model

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a rear floor longitudinal beam assembly with the aim of improving universality.

[0006] To solve the above technical problems, the technical solution adopted by the utility model is: the rear floor longitudinal beam assembly includes a rear floor longitudinal beam body and a longitudinal beam connecting plate. A skid hole is provided at one end of the rear floor longitudinal beam body, and the longitudinal beam connecting plate is fixedly connected to the other end of the rear floor longitudinal beam body.

[0007] The longitudinal beam connecting plate is welded to the rear floor longitudinal beam body.

[0008] The longitudinal beam connecting plate is a structure with a U-shaped cross-section.

[0009] The longitudinal beam connecting plate includes a first side wall and a second side wall connected to each other. There are two first side walls and the two first side walls are arranged oppositely. The second side wall is located between the two first side walls.

[0010] The longitudinal beam connecting plate further includes a flanging connected to the first side wall, and the flanging is fixedly connected to the rear floor longitudinal beam body.

[0011] The present utility model also provides a vehicle, including the rear floor longitudinal beam assembly described above.

[0012] For the rear floor longitudinal beam assembly of the present utility model, by providing skid holes on the rear floor longitudinal beam body and adding longitudinal beam connection plates on the rear floor longitudinal beam body, a platformized and generalized rear floor longitudinal beam assembly for different wheelbases is realized, improving the platformization and generalization design of the rear floor longitudinal beam assembly, reducing development costs, and realizing flexible production of vehicles with different wheelbases. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of a long-wheelbase rear floor longitudinal beam assembly;

[0014] Figure 2 is a schematic structural diagram of a long-wheelbase rear floor longitudinal beam body;

[0015] Figure 3 is a schematic structural diagram of a rear longitudinal beam connection plate;

[0016] Figure 4 is a schematic structural diagram of a short-wheelbase rear floor longitudinal beam assembly;

[0017] Figure 5 is a schematic structural diagram of a short-wheelbase rear floor longitudinal beam body;

[0018] The markings in the above figures are all: 1, short-wheelbase rear floor longitudinal beam assembly; 2, long-wheelbase rear floor longitudinal beam assembly; 1-1, short-wheelbase rear floor longitudinal beam body; 1-1-1, skid hole; 2-1, rear floor longitudinal beam body; 2-1-1, skid hole; 2-2, longitudinal beam connection plate; 2-3, first side wall; 2-4, second side wall; 2-5, flange. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following is a more detailed description of the specific embodiments of the present utility model with reference to the accompanying drawings. The purpose is to help those skilled in the art have a more complete, accurate, and in-depth understanding of the concept and technical solution of the present utility model and to facilitate its implementation.

[0020] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", and similar expressions used herein are only for the purpose of illustration.

[0021] It should be noted that in the following embodiments, the "first" and "second" do not represent an absolute distinction relationship in terms of structure and / or function, nor do they represent the order of execution, but are only for the convenience of description.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this invention belongs. The terms used in the description of the present invention herein are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0023] As Figures 1 to 3 shown, the utility model provides a rear floor longitudinal beam assembly, which includes a rear floor longitudinal beam body 2-1 and a longitudinal beam connecting plate 2-2. A skid hole 2-1-1 is arranged at one end of the rear floor longitudinal beam body 2-1, and the longitudinal beam connecting plate 2-2 is fixedly connected to the other end of the rear floor longitudinal beam body 2-1.

[0024] Specifically, in the utility model, the difference between the short wheelbase rear floor longitudinal beam body 2-11-1 and the long wheelbase rear floor longitudinal beam body 2-12-1 is only the difference in the skid hole positions. The stamping dies for the two rear longitudinal beam bodies are only different in the punching die; the spatial absolute coordinates of the skid hole 1-1-1 on the short wheelbase rear longitudinal beam body 1-1 are the same as those of the skid hole 2-1-1 on the long wheelbase rear longitudinal beam body. While achieving the change in the wheelbase through the change in the skid hole positions, the skids for welding and painting are universal. After the long wheelbase rear floor longitudinal beam body 2-1 and the rear longitudinal beam connecting plate 2-2 are welded together, the length of the long wheelbase rear longitudinal beam assembly is increased, thereby achieving the change in the wheelbase.

[0025] As Figures 1 to 3 shown, the longitudinal beam connecting plate 2-2 is a structure with a U-shaped cross-section. The longitudinal beam connecting plate 2-2 includes a first side wall 2-3 and a second side wall 2-4 which are connected. Two first side walls 2-3 are provided and the two first side walls 2-3 are arranged oppositely. The second side wall 2-4 is located between the two first side walls 2-3. The two ends of the second side wall 2-4 are respectively fixedly connected to the ends of the two first side walls 2-3. The length directions of the first side wall 2-3 and the second side wall 2-4 are parallel, and the two first side walls 2-3 are on the same side of the second side wall 2-4.

[0026] As Figures 1 to 3 shown, the longitudinal beam connecting plate 2-2 further includes flanges 2-5 connected to the first side wall 2-3. Two flanges 2-5 are provided, and the two flanges 2-5 are respectively fixedly connected to the edges of the two first side walls 2-3. The first side wall 2-3 is located between the flange 2-5 and the second side wall 2-4. The flange 2-5 extends along the entire length direction of the first side wall 2-3, and the two flanges 2-5 are fixedly connected to the rear floor longitudinal beam body 2-1.

[0027] The utility model also provides a vehicle, which includes the rear floor longitudinal beam assembly with the above structure. For the specific structure of this rear floor longitudinal beam assembly, reference can be made toFigures 1 to 3 , which will not be elaborated here. Since the vehicle of the present utility model includes the rear floor longitudinal beam assembly in the above embodiments, it has all the advantages of the above rear floor longitudinal beam assembly.

[0028] The present utility model has been described exemplarily above in conjunction with the accompanying drawings. Obviously, the specific implementation of the present utility model is not limited by the above methods. As long as various non-substantive improvements are made by adopting the method concept and technical solution of the present utility model, or the concept and technical solution of the present utility model are directly applied to other occasions without improvement, they are all within the protection scope of the present utility model.

Claims

1. The rear floor longitudinal beam assembly is characterized by: The utility model comprises a rear floor longitudinal beam body and a longitudinal beam connecting plate. A sliding hole is arranged at one end of the rear floor longitudinal beam body, and the longitudinal beam connecting plate is fixedly connected with the other end of the rear floor longitudinal beam body.

2. The rear floor longitudinal beam assembly according to claim 1, characterized in that: The longitudinal beam connecting plate is connected to the rear floor longitudinal beam body by welding.

3. The rear floor longitudinal beam assembly according to claim 1 or 2, characterized in that: The longitudinal beam connecting plate is a structure with a U-shaped cross section.

4. The rear floor longitudinal beam assembly according to claim 3, characterized in that: The longitudinal beam connecting plate comprises a first side wall and a second side wall connected to each other, two first side walls are provided and the two first side walls are arranged opposite to each other, and the second side wall is located between the two first side walls.

5. The rear floor longitudinal beam assembly according to claim 4, characterized in that: The longitudinal beam connecting plate further comprises a flange connected to the first side wall, and the flange is fixedly connected to the rear floor longitudinal beam body.

6. A vehicle, characterized in that: It comprises the rear floor longitudinal beam assembly as described in any one of claims 1 to 5.

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