Centrifugal micro-fluidic chip loading and fixing device

The utility model relates to the technical field of centrifugal micro-fluidic chip loading, in particular to a centrifugal micro-fluidic chip loading and fixing device which comprises a chuck, a central column is fixedly connected to the middle of the top of the chuck, and limiting columns are fixedly connected to the periphery of the surface of the central column. According to the loading and fixing device for the centrifugal micro-fluidic chip, the spring plunger is arranged, the chip slides to the position above the clamping boss of the spring plunger, the chip is tightly attached to the chuck through the elastic force of the marble so as to limit the chip to move up and down, meanwhile, the limiting column of the chuck is matched with the positioning groove of the chip, and the chip is clamped in the clamping boss of the spring plunger. According to the technical scheme, deviation of the chip in the circumferential direction is achieved, relative rotation of the chip and the chuck in the circumferential d