Centrifuge adapter

A centrifuge adapter is characterized by comprising a first adapter main body segment, a second adapter main body segment, a third adapter main body segment, a first positioning pin, a second positioning pin, a first mark, and a second mark, wherein the first adapter main body segment is provided with blind holes; the second adapter main body segment is provided with through holes, each of which is composed of an upper segment and a lower segment in the hole axis direction with a step arranged in the place where the upper segment and the lower segment are connected; and the third adapter main body segment is provided with concave holes, the opening of each of which faces towards the top part of the upper segment of the corresponding through hole 12. The depth of each blind hole is smaller than the length of each pipe body. The sum of the depth of each lower segment and the depth of each blind hole is greater than the length from the lower end of each protection cap to the bottom end of the corresponding pipe