Sample cooling and storage mechanism

A sample cooling and storage mechanism, comprising:

• a refrigeration device and a gradient cooling device;
• wherein the refrigeration device is configured to perform temperature-controlled refrigeration on storage vials;
• the gradient cooling device is configured to perform programmed gradient cooling on the storage vials;
• the refrigeration device comprises at least one refrigeration zone;
• a nitrogen spraying component, a heating component and a storage vial rack are provided in the refrigeration zone;
• the nitrogen spraying component is configured to spray nitrogen in the refrigeration zone;
• and the heating component heats an interior of the refrigeration zone;
• the refrigeration device comprises a plurality of refrigeration zones, and the plurality of refrigeration zones are arranged in an array in a refrigerator component;
• an upper end of the refrigeration device is provided with a movable insulation cover, and the movable insulation cover rolls or slides to open or close the refrigeration device;
• the movable insulation cover comprises two parallel guide rails, a movable rod with two ends slidably provided on the guide rails, and a flexible insulation cover with one end provided on the movable rod and the other end connected to a counterweight and suspended;
• and
• the movable insulation cover further comprises a drive motor and a drive shaft connected to an output shaft of the drive motor;
• a driving wheel is provided on the drive shaft;
• the driving wheel is synchronized and connected to a driven wheel through a driving belt;
• a second slider is provided on the driving belt;
• an end of the movable rod is fixedly connected to the second slider;
• and the second slider is slidably fit with the guide rail.