Test tube centrifugal device

The utility model discloses a test tube centrifugal device which comprises a rack, the lower end of the rotating shaft is in transmission connection with the rotating driving device, and the upper endis provided with a plurality of supporting rods; the test tube rack is provided with a plurality of mounting holes for test tubes to extend in; an opening is formed in the top of the box body, the number of the box bodies is multiple, the box body is arranged between any two adjacent supporting rods, and the box body is rotationally connected with the two supporting rods; each box body is connected with the corresponding sliding block through a first connecting rod, one end of each first connecting rod is hinged to the corresponding sliding block, the other end of each first connecting rod ishinged to the corresponding box body, the hinge point of each first connecting rod and the corresponding box body is located below the pivot, the rotating shaft is further provided with two limitingrings used for limiting the