Rotation type seed classification tool

The utility model discloses a rotation type seed classification tool, including urceolus and inner tube, the inner tube through the pivot can the free rotation be fixed in the urceolus inside, evenly be provided with four at least constant head tanks on the urceolus inner wall, compression spring and locating pin has set gradually in the constant head tank, evenly be provided with unanimous with constant head tank quantity and the relative locating hole that sets up on the inner tube outer wall, the urceolus is confined cavity structures, and the inner tube is the open cavity structures in upper end, and the inner tube partition is provided with the same with the constant head tank quantity division region who is used for depositing the seed, and the pivot upper end extends to the rotatory handle of urceolus upper end outside back fixed connection, and the urceolus upper end is provided with the opening relative with one of them division region, is provided with the lid of matching on the opening. The utility