Hinge assembly for backrest framework and cushion framework of automobile seat

The utility model relates to the technical field of automobile seats, in particular to an automobile seat backrest framework and cushion framework hinging assembly which comprises a cushion framework assembly, a backrest framework assembly is hinged to the cushion framework assembly, and a same turnover mechanism is installed between the cushion framework assembly and the backrest framework assembly. The turnover mechanism comprises two screw rods which are rotationally connected to the inner walls of the two ends of the cushion framework assembly; the two chain wheels are fixedly arranged on the outer walls of the circumferences of the two screw rods in a sleeving mode, and the two chain wheels are sleeved with the same chain; the turnover mechanism is arranged, the push rods are arranged on the two sides of the seat cushion framework assembly, the stability of a seat can be guaranteed, the seat cannot occupy too large space, the turnover mechanism is arranged, the push rods are arranged on the two sides of