Power-assisted anesthetic syringe

The utility model relates to the technical field of traditional Chinese medical appliances, in particular to a power-assisted anesthetic syringe, which comprises a syringe consisting of a needle tube, a piston, a push-pull rod, a needle seat and a needle. The power-assisted anesthetic syringe is characterized in that the power-assisted anesthetic syringe is provided with a retracting spring, a positioning rod, an ejector plate, a retracting button and a hinge shaft, the retracting spring is arranged on the lateral face of the needle tube, one end of the retracting spring is fixedly connected with the needle tube, the other end of the retracting spring is fixedly connected with the push-pull rod, a positioning groove is arranged on one side of the rear of the push-pull rod, the positioning rod is arranged in the positioning groove and hinged to the push-pull rod through the hinge shaft, one end of the positioning rod is hinged to the retracting button, the other end of the positioning rod is connected with the