A foldable zero-gravity seat, comprising a seat
cushion framework, wherein the seat
cushion framework comprises a seat
cushion frame
assembly, with the front end of the seat cushion frame
assembly being hinged to upper front links, lower front links and seat cushion mounting brackets in sequence, and the rear end of the seat cushion frame
assembly being hinged to rear links and the seat cushion mounting brackets in sequence; angle driving devices are provided at two hinge joints to drive the seat to switch between a
normal position, a zero-gravity position and a folded position; in the
normal position, the rear links are tilted backwards, and the lower front links are tilted; in the zero-gravity position, the rear and front ends of the seat cushion framework are higher than those of the seat cushion framework in the
normal position; and during the process of switching to the folded position, the lower front links are driven to rotate, the rear links are driven to tilt forward simultaneously, and the upper front links are driven to rotate relative to the lower front links. On the basis of a five-link structure, the seat of the present application enables a more flexible rotation range of the seat cushion framework, thereby realizing zero-gravity position adjustment, forward folding of a seat cushion and height adjustment of the rear end of the seat cushion, and preventing the problem of a backrest abutting against the
waist in the zero-gravity position.