The closed car transporter lifting mechanism includes: a vertically arranged slide rail and a sliding plate. The lifting platform is pivotally connected to the sliding plate through a horizontal flipping pin, wherein there is a first distance between the flipping pin and the sliding rail; There is a door closing limit pin fixed on the rail; the door crank is pivotally connected to the lifting platform through a horizontal pivot shaft, and the door closing crank is limited to the side facing the slide rail by a horizontal bump provided on the lifting platform. One end of the door-closing crank facing the slide rail is a hook-shaped limit groove, which extends to or beyond the bottom of the door-closing limit pin. It is used to hook on the door-closing limit pin when the lifting platform rises along the slide rail. When the lifting platform continues to rise, the lifting platform is pulled to flip around the flip pin toward the slide rail.
The lifting platform in the lifting mechanism of the present invention is equivalent to the rear door panel and can automatically complete the closing and opening operations, reducing the labor intensity of workers and improving the loading and unloading efficiency.