Vascular injection device for animal medical experiment

The invention discloses a blood vessel injection device for animal medical experiments, which comprises a bottom plate, a disinfection cover, an injection pressure tank and a spray head, the outer ring of the top of the bottom plate is fixedly connected with a shell through clamping, the center of the top of the shell is rotatably connected with a turntable through a bearing, and the center of the bottom of the turntable is fixedly connected with a rotating shaft through a screw; when blood injection is carried out, injection is carried out on animals by manually pulling an injection needle, at the moment, a spring is in a stretching state, an electromagnetic valve is controlled to be opened through a pedal control panel, and then the injection needle is pulled out to conduct injection on the animals; liquid medicine in the injection pressure tank is automatically injected under the action of pressure, the stepping motor drives the rotary table to rotate so that the injection tube and the injection needle can