Water Outlet Device and Aerator Thereof

An aerator, comprising:

• a housing, provided with a mounting cavity and a water inlet, a water outlet and an air inlet all communicated with the mounting cavity;
• an aerator mesh having flexibility or elasticity, an edge of the aerator mesh being connected to the housing, and the aerator mesh being capable of covering the water outlet, and provided with a plurality of first mesh holes and a dirt outlet having a cross-sectional area larger than that of a first mesh hole;
• an acceleration member, provided in the mounting cavity and slidable in a direction toward the aerator mesh and in a direction away from the aerator mesh, wherein the acceleration member abuts against an area of the aerator mesh close to the dirt outlet;
• and
• an elastic member, for applying an elastic force toward the acceleration member to the area of the aerator mesh close to the dirt outlet;
• wherein the acceleration member is configured to slide in the direction toward the aerator mesh under an action of a water flow, so as to prop the aerator mesh to arch in a direction away from the acceleration member.