Vehicle rear-floor frame structure, vehicle body and vehicle

Abstract

The invention provides a vehicle rear-floor frame structure, a vehicle body and a vehicle. The vehicle rear-floor frame structure comprises a pair of longitudinal beams and a cross beam assembly, wherein the cross beam assembly enables the longitudinal beams to be connected with each other. The cross beam assembly comprises a first cross beam, a second cross beam, a third cross beam, a first longitudinal beam set and a second longitudinal beam set, wherein the first cross beam, the second cross beam and the third cross beam are arranged at intervals, the first longitudinal beam set connects the second cross beam with the third cross beam, and the second longitudinal beam set extends towards a vehicle head from the third cross beam. The first longitudinal beam set comprises two first branched longitudinal beams arranged in a spaced mode, the second longitudinal beam set comprises two second branched longitudinal beams arranged in a spaced mode, and the second branched longitudinal beams and the first branched longitudinal beams are arranged in a one-to-one correspondence mode so as to be located on the same straight lines. The vehicle rear-floor frame structures are installed on the vehicle body and the vehicle. According to the vehicle rear-floor frame structure, the structural strength and the reliability of the frame structure at a rear floor can be guaranteed, the rigidity and the bending resistance of the cross beams can be improved, the constancy of a vehicle body force transferring channel can also be guaranteed, and the integral mode of the vehicle rear floor can be improved.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to a vehicle rear floor frame structure suitable for vehicles with short rear overhangs. The present invention also relates to a vehicle body equipped with the rear floor frame structure of the vehicle, and a vehicle with the vehicle body. Background technique [0002] The vehicle rear floor frame structure is an important part of the vehicle body structure, which is mainly used for supporting the rear floor and for the installation arrangement of related structural parts. The rear floor beam frame structure of existing vehicles is mostly composed of cross beams and longitudinal beams. In actual use, it is found that there are problems such as insufficient force transmission of the longitudinal beams, insufficient overall rigidity, and weak beam structures that are prone to bending. It will affect the overall mode of the rear floor, and there are also hidden dangers such as the fa...

AI Technical Summary

Problems solved by technology

The rear floor beam frame structure of existing vehicles is mostly composed of cross beams and longitudinal beams. In actual use, it is found that there are problems such as insufficient force transmission of the longitudinal beams, insufficient overall rigidity, and weak beam structures that are prone to bending. It will affect the overall mode of the rear floor, and there are also hidden dangers such as the failure of the rear floor depression

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