Head lifting mechanism

The utility model provides a head lifting mechanism which comprises a bed body, a plurality of supporting legs are fixedly installed at the bottom of the bed body, a bottom plate is arranged at the bottoms of the supporting legs, two supporting plates are arranged at one end of the top of the bottom plate, a driving mechanism is arranged at the top of the other supporting plate, and a lifting mechanism is connected into one side of the bed body in a penetrating mode. The device has the beneficial effects that a user can conveniently turn on the stepping motor through a stepping motor switch by arranging the stepping motor, so that the output end of the stepping motor rotates to drive a driving bevel gear to drive a driven bevel gear to rotate, and when the driven bevel gear rotates to drive a rotating rod to rotate, the rotating rod drives a screw rod to rotate; a lead screw is matched with a limiting rod through an external thread, then a moving plate drives a moving rod to move, when the moving rod moves, t