Nozzle structure, additive delivery device and washing machine

An additive delivery device, comprising a water supply waterway;

• and a delivery unit configured to deliver additives to the water supply waterway;
• wherein:
• an outlet of the water supply waterway is connected to a nozzle structure, the delivery unit includes liquid storage cavities for storing the additives, and the liquid storage cavities communicate with the water supply waterway;
• the water supply waterway is integrated on a housing of the delivery device, the outlet of the water supply waterway is disposed on an outer side of the housing, the nozzle structure is disposed outside the housing, and the outlet of the water supply waterway communicates with the nozzle structure by a guide pipe;
• a top of the housing of the delivery device is an upper cover, the water supply waterway is disposed inside the upper cover, and the outlet of the water supply waterway is exposed on an outer circumferential side of the upper cover;
• and an independent guide pipe is disposed outside the housing, an inlet end of the guide pipe communicates with the outlet of the water supply waterway, and an outlet end of the guide pipe communicates with the nozzle structure disposed outside the housing.