Five-connecting-rod lifting mechanism

The invention discloses a five-connecting-rod lifting mechanism, which relates to the field of automobile seat lifting mechanisms, and comprises a controller, an automobile seat five-connecting-rod lifting mechanism, a protection displacement mechanism, an automobile backrest and a head protection mechanism, the five-connecting-rod lifting mechanism comprises a lifting driving assembly, a fixed base, a first connecting rod close to the rear side of a seat, a supporting seat frame, an upper connecting rod close to the front side of the seat and a lower connecting rod, the protection displacement mechanism is located at the bottom of the fixed base, and the bottom of the protection displacement mechanism is connected with the automobile seat supporting, adjusting and sliding assembly; the protection displacement mechanism comprises a protection displacement driving assembly, a supporting guide rod and a sliding guide rod, the supporting guide rod and the sliding guide rod are arranged in a symmetrical structure