Safety piezoresistor

The utility model discloses a safety type piezoresistor. Explosion-proof enclosure, the inner bottom wall of the explosion-proof shell is fixedly connected with a damping sheet; the upper surface of the damping sheet is fixedly connected with a supporting seat; symmetrical first springs are fixedly connected to the upper surface of the supporting base. The upper surface of the supporting base is fixedly connected with a supporting column. A sliding plate is arranged above the supporting seat; the top end of each first spring is fixedly connected with the bottom surface of the sliding plate; symmetrical first sliding grooves are formed in the inner side wall of the explosion-proof shell. The interior of each first sliding groove is fixedly connected with a first sliding block matched with the first sliding groove. Through cooperation of a damping piece, a supporting base, a first spring, a sliding plate, a first sliding groove and a second sliding block, the impact force at the moment of breakdown of the piezo