Automobile window lifting device

The utility model discloses an automobile window lifting device. The device comprises a fixed plate and a mounting frame mounted on the fixed plate in a sliding manner, the mounting frame comprises amounting plate, two auxiliary rods and a tooth-shaped plate; the middle part of the bottom of the mounting plate is fixedly connected with the top of a tooth-shaped plate; the left side and the rightside of the bottom of the mounting plate are fixedly connected with the top ends of the two auxiliary rods respectively, sliding holes are formed in the left side and the right side of the top of thefixing plate, and the inner surfaces of the sliding holes are connected with the outer surfaces of the auxiliary rods in a sliding mode. Automobile window lifting device, a reinforcing box is mountedat the bottom of the fixing plate; and a spring is slidably mounted in the reinforcing box to abut against the push plate, so that a second gear can apply certain pressure to abut against the tooth-shaped plate in the ascending