Patent ID: 11946684
Assignee: SHANGHAI ORIGINCELL BIOLOGICAL CRYO EQUIPMENT CO., LTD.
Field: Other consumer goods (Other fields)
Classification: CPC A  F  B  Y | IPC A  F

Claim 3:
4. The spirally ascending/descending cryogenic storage apparatus according to claim 3, wherein the drive shaft assembly comprises a lead screw and a rotation shaft sleeve, the transition gear assembly is connected to the rotation shaft sleeve; the rotation shaft sleeve is sleeved on a periphery of an upper half of the lead screw, and a lower end of the lead screw extends out of the rotation shaft sleeve;
a periphery of a circumference of the rotation shaft sleeve extends outwards to form at least one guide ball, an inner wall of the operation channel of the rotating storage rack is recessed inwards to form at least one guide groove, the guide ball extends into the guide groove; under a cooperation of the guide ball and the guide groove, the rotation shaft sleeve is capable of driving the rotating storage rack to rotate in a circumferential direction;
the operation channel of the rotating storage rack is fixedly provided with an inner nut seat at a lower end thereof, the lower end of the lead screw passes through the operation channel and is threadedly connected to the inner nut seat.