Culture bottle and stirring assembly thereof

The utility model relates to the technical field of cell culture bottle equipment, and discloses a stirring assembly of a culture bottle, which comprises a mounting shaft, a shaft sleeve, a clamping sleeve and a rotating part, the rotating part comprises an outer cylinder and a stirring part, the clamping sleeve and the shaft sleeve are sequentially sleeved on the periphery of the mounting shaft from top to bottom, and the mounting shaft can limit the downward sliding of the shaft sleeve. The stirring part is arranged at the bottom of the outer cylinder, a cavity is formed in the outer cylinder, an opening is formed in the top of the cavity, the bottom of the cavity is closed, the bottom of the mounting shaft is inserted into the cavity from top to bottom from the opening, the shaft sleeve is located in the cavity, the clamping sleeve is rotationally connected with the mounting shaft, and the clamping sleeve is connected with the top of the outer cylinder; the bottom end of the clamping sleeve extends into th