Pepper mill

A pepper mill comprising:

• a receiving unit that includes a stationary seat, and a rotatable seat disposed under said stationary seat and rotatable relative to said stationary seat;
• a grinding unit that includes an outer grinding seat mounted fixedly to said stationary seat, and an inner grinding seat surrounded by said outer grinding seat;
• and
• an adjusting mechanism that includes
• an operating base mounted in said rotatable seat and operable to rotate about a rotary axis relative to said rotatable seat, said operating base including an accessible portion that is adapted for access of a user, and a threaded rod that extends upwardly from said accessible portion along the rotary axis and that is rotatable about the rotary axis, and
• a movable seat disposed between said operating base and said inner grinding seat, said threaded rod extending into and threadedly engaging said movable seat, said inner grinding seat being connected co-movably to said movable seat;
• wherein said movable seat is connected co-rotatably to said rotatable seat, is movable along the rotary axis relative to said rotatable seat, and is not rotatable relative to said rotatable seat;
• wherein rotation of said rotatable seat relative to stationary seat drives, via said movable seat, rotation of said inner grinding seat relative to said outer grinding seat for grinding peppercorns retained between said inner and outer grinding seats;
• and
• wherein rotation of said operating base about the rotary axis relative to said rotatable seat drives said movable seat to move along the rotary axis under guidance of said rotatable seat, thereby driving said inner grinding seat to move along the rotary axis relative to said outer grinding seat.