Movement assisting device of transmission mechanism

According to the movement assisting device of the transmission mechanism, the transmission mechanism comprises a mounting bottom plate, a transmission gear and a transmission rack, the transmission rack is movably arranged on one side face of the mounting bottom plate, and the movement assisting device comprises a floating bottom plate, an elastic supporting piece, a fixed base and a floating base; the side face, not provided with the transmission rack, of the installation bottom plate is in floating connection with a floating bottom plate through an installation assembly, a transmission through hole is formed in the installation bottom plate, the transmission gear is rotationally arranged on the floating bottom plate and penetrates through the transmission through hole to be connected with the transmission rack in a meshed mode, and a fixed base is fixedly arranged on the side face, not provided with the transmission rack, of the installation bottom plate. A floating base is fixedly arranged at the position,