Self-reset mechanical acceleration overload switch

The utility model discloses a self-reset mechanical acceleration overload switch. A conductive baffle plate and a vibration damping pad are fixed at the right end opening of a cylindrical conductive housing, the inner end of a pin II is electrically connected with the conductive baffle plate; a metal ball and a spring are arranged in the cylindrical conductive housing, the right end of the metal ball is abutted against the vibration damping pad, and the left end is abutted against the spring; an insulation baffle plate is fixed at the left end opening of the cylindrical conductive housing, a big cylinder at the outer end of the insulation baffle plate cooperates with the cylindrical conductive housing in circumference, and a small cylinder at the inner end is inserted in the spring; an annular conductive plate is sleeved on the small cylinder at the inner end of the insulation baffle plate, the spring is abutted against the annular conductive plate, and a small end of a fixed contact is inserted in a central