Rotary bottle with replaceable inner container

A rotary bottle with replaceable inner container, comprising:

• an outer bottle (1), an inner container (9) and a rotating device, wherein an upper cover (12) is removably attached above the outer bottle (1), a rotating base (5) is rotatably attached below the outer bottle (1), and the inner container (9) is coaxially installed at an inner of the outer bottle (1), an inner cover (11) is installed above the inner container (9), a clamping point (13) protruding outwards is provided at a outer wall of the inner container (9), and the clamping point is correspondingly clamped in a groove at an inner wall of the outer bottle (1);
• a screw (10) is provide in the inner of the inner container (9), an upper clamping ring (7) connected with the inner container (9) is provide in a position, close to a circumferential edge, of an upper surface of a bottom of the screw (10), the upper clamping ring (7) is clamped in an annular groove at an inner wall of the inner container (9), a bottom plug (6) is installed in a position between a lower surface of the bottom of the screw (10) and the rotating base (5), the bottom plug (6) is clamped on a lower clamping ring (2) in a position, close to the circumferential edge, of the lower surface of the bottom of the screw (10), and a circular boss (3) is provided at a center of the lower surface of the screw (10) and is synchronously rotatably connected with the rotating base (5).