Micro protein purifying sample loading device

The utility model provides a micro protein purifying sample loading device mainly comprising an injector clamping device (1), a stepping motor (5), a screw rod (9), a push plate (2), an injector (12), and an operation control panel (6). The micro protein purifying sample loading device is mainly characterized in that the leftmost end of the micro protein purifying sample loading device is provided with the injector clamping device (1) provided with a groove, the injector clamping device (1) is fixed on an outer shell (3), a clamping piece is arranged on the injector clamping device (1), a syringe of the injector is placed in the groove of the injector clamping device (1) and fixed through the clamping piece, a piston push rod of the injector tightly abuts against the push plate (2), the push plate (2) is vertically connected with the screw rod (9) and can move forward and backward through threads on the push plate self and threads on the screw rod (9), and the stepping motor (5) is connected with the right re