Abstract: The invention provides a squeezing device, which comprises a squeezing structure and a squeezing head; the internal of the squeezing device is provided with a holding cavity, a squeezing cavity and a diversion cavity, the diversion cavity has a relatively arranged connection port I and a connection port II, the connection port I is connected to the holding cavity, and the connection port II is connected to the squeezing cavity; the cross section area of the connection port I is greater than that of the connection port II; the squeezing head is at least partially placed in the squeezing cavity, and the squeezing head is arranged with respect to the squeezing structure for relative rotation. The main body is used to drive the squeezing head of the squeezing device for rotation.