Centrifugal machine inner cover provided with anti-dropping device of centrifugal tube cover

The utility model relates to a centrifugal machine inner cover provided with an anti-dropping device of a centrifugal tube cover. The centrifugal machine inner cover provided with the anti-dropping device of the centrifugal tube cover comprises a cover body and an angle rotor, wherein the anti-dropping device of the centrifugal tube cover is fixed on the cover body, an angle rotor annular concave surface is arranged on the angle rotor, a centrifugal tube inserting hole is formed in the angle rotor annular concave surface, a centrifugal tube with the centrifugal tube cover can be inserted into the centrifugal tube inserting hole, and the anti-dropping device of the centrifugal tube cover is attached to the centrifugal tube cover. The centrifugal machine inner cover provided with the anti-dropping device of the centrifugal tube cover is simple in structure and convenient to use. The cover body and the angle rotor are combined through the anti-dropping device of the centrifugal tube cover, and bouncing off or falling off the tube cover of the centrifugal tube can be effectively prevented in a high-speed centrifugation process.