Cleaning device

A cleaning device, comprising:

• a device body;
• a cleaning assembly movably connected to the device body, the cleaning assembly having an initial position and a retracted position;
• and
• a restoring member having one end connected to the cleaning assembly and the other end connected to the device body, the restoring member providing a restoring force for holding the cleaning assembly in the initial position,
• wherein a part of the cleaning assembly is located outside a peripheral side of the device body when the cleaning assembly is in the retracted position;
• and
• the part of the cleaning assembly that is located outside the peripheral side of the device body when the cleaning assembly is in the initial position is larger than the part of the cleaning assembly that is located outside the peripheral side of the device body when the cleaning assembly is in the retracted position, and the cleaning assembly switches from the initial position to the retracted position when the part of the cleaning assembly that is located outside the peripheral side of the device body abuts against an edge of an obstacle.