Linear pash-rod motor

The utility model discloses a linear pushrod motor transforming rotation into linear motion, which is composed of a motor, a speed-down unit, a cabinet, a fixed link, a telescoping rod, a microswitch, a lead screw and a nut, of which the motor is in drive connection with the speed-down unit, the speed-down unit is in drive connection with the lead screw, the lead screw is engaged with the nut, the nut is fixed with the telescoping rod and is in beeline sliding matching with the fixed link and the telescoping rod moves against the fixed link, a 1st microswitch and a 2nd microswitch are arranged in the cabinet; the nut is provide with a trigger piece and a dialing piece; the trigger piece can be pressed against a contact of the 1st microswitch, and the dialing piece can be pressed against a travel tie bar; an end of the travel tie bar can be pressed against a contact of the 2nd microswitch; travel tie bar and the offsetting spring are arranged in the fixed link. The offsetting spring can press the travel tie bar to the 2nd microswitch. The utility model can be installed conveniently, used safely; it can accurately control and easily adjust the travel.