The invention relates to the technical field of automobiles, in particular to an automobile and a rear floor framework
assembly thereof, and aims to solve the problems that an existing automobile rear floor framework
assembly cannot meet the rear high-
low speed collision requirement of the automobile, and the strength, durability and
torsional rigidity need to be improved. In order to achieve the purpose, the rear floor framework
assembly comprises a left longitudinal beam structure, a right longitudinal beam structure, a front cross beam, a middle cross beam, a rear cross beam, a middle left longitudinal beam structure and a middle right longitudinal beam structure, and a left Y-shaped force transmission structure and a right Y-shaped force transmission structure are formed. A first left reinforcing structure and a second left reinforcing structure which extend upwards and are arranged side by side are arranged on the left longitudinal beam structure, and a first right reinforcing structure and a second right reinforcing structure which extend upwards and are arranged side by side are arranged on the right longitudinal beam structure. The problem of rear collision of the automobile can be solved,
personnel safety in the rear collision process of the automobile is effectively protected, the strength, durability and torsion performance of the automobile are improved, and the automobile body structure is simplified.