Automatic uncovering mechanism for liquid nitrogen tank

The utility model relates to the technical field of cryopreservation equipment, and discloses a liquid nitrogen tank automatic uncovering mechanism which comprises a driving motor arranged on a mounting plate and an uncovering structure arranged on a mounting frame. The rotating shaft is mounted on the mounting frame and is connected with the output end of the driving motor; one end of the rotating arm is connected with the rotating shaft; the fixed plate is mounted at one end, far away from the rotating shaft, of the rotating arm; according to the mechanism, the uncovering mechanism is driven by the driving motor to rotate so as to open the liquid nitrogen container plug, automatic opening of the liquid nitrogen container plug is achieved, convenience is brought to a user, and potential safety hazards caused by manual operation are reduced. 本实用新型涉及冻存设备技术领域，公开了一种液氮罐自动开盖机构，一种液氮罐自动开盖机构，包括设置在安装板上的驱动电机和设置在安装架上的开盖结构，所述开盖结构包括：旋转轴，所述旋转轴安装在所述安装架上且与所述驱动电机的输出端连接；旋转臂，所述旋转臂的一端与所述旋转轴连接；固定板，所述固定板安装在所述旋转臂远离所述旋转轴的一端；本机构通过驱动电