Sample storage device for conventional physical and chemical detection of food

The utility model discloses a sample storage device for conventional physical and chemical detection of food, which relates to the technical field of food and comprises a bottom fixing component, a placement component fixedly mounted at the upper end of the bottom fixing component, a separation component in threaded connection with the interior of an inner cavity of the placement component, and a cover sealing component arranged at the upper end of the placement component. When food in an inner cavity of a hollow long cylinder needs to be detected, a round cover can be directly rotated, square blocks arranged at the two ends of the round cover and rolling wheels at the upper end of the round cover can slide in an inner cavity of a round groove, and after the operator rotates a corresponding groove to the upper end of a corresponding penetrating groove, the food in the inner cavity of the hollow long cylinder can be detected. The long rod and the flat block fixedly installed at the lower end of the long rod ca