Automatically operable safety shield system for syringes

A of the automatic operation safety protection sleeve system for injector (60) is (10), (60) capable of inserting the spiral clamping comprising a syringe (20); The outer sheath the spiral plate (20) is outwards (30), wherein a frame and corresponding positions of the end part; The locating the spiral plate (20) and outer sheath (30) and a spring, the spring pushes the protective sleeve (30) is supported at the corresponding position; The spiral plate (20) at least one first opening (130), at least one first gap wherein distant seat (170), (30) at least one first lock with outer sheath (300), wherein the outer sheath (30) is a a of the first lock and opening (130) connected; when the outer sheath (30) is at the end of the first lock and a notch (170) connected; Screw clamping motion through the locating or the projection through the syringeplunger of releasable and high efficiency protection sleeve a position.