Abstract: A base station of a cleaning device and a cleaning system are provided. The base station of the cleaning device includes: a base station body having an accommodating chamber for accommodating the cleaning device and an opening for the cleaning device to enter or exit the accommodating chamber; and a water injection assembly including a movable base, and a movable plate, a lifting mechanism, and a water injection pipe that are disposed on the movable base. The water injection pipe is configured to inject water into the cleaning device. The lifting mechanism is configured to drive the water injection pipe to move. A first elastic member is disposed between the movable plate and a side wall of the accommodating chamber. The cleaning device is contacted with the movable plate during a water injection process of the water injection assembly.

Abstract: Provided is a self-moving cleaning device, including a shell, a water tank, a groove, and a roller assembly. A mounting part is arranged at the bottom of the shell; the water tank is detachably mounted on the mounting part; the groove is provided in the mounting part and/or the groove is provided in the water tank at a position cooperating with the mounting part; and the roller assembly is mounted on the mounting part and can extend and retract. When the water tank is mounted on the shell, the roller assembly retracts into the groove and is in a retracted state, and when the water tank is removed from the shell, the roller assembly is in an extended state.

Abstract: A water tank for a sweeper and a sweeper including the same are provided. The water tank for the sweeper includes: a water tank lower cover, a bottom of which is provided with a containing groove; a water tank upper cover, which is connected with the water tank lower cover; a water tank release button arranged at the containing groove; and a reset member, a first end of which is coupled to the water tank release button and a second end is coupled to the water tank lower cover.

Abstract: A cleaning robot includes a housing, a camera rotationally connected to the housing, and power component mounted on the housing. The power component includes a motor and a gear set, and is connected to the camera via the gear set, and the motor is configured to drive the camera to rotate around a rotation axis via the gear set. The present disclosure also provides a cleaning robot system.