Microbubble type self-closed aerator

The utility model discloses a microbubble type self-closed aerator which is classified into an embedded type and an integral type, and comprises a panel and a plurality of air nozzles, wherein a plurality of mounting holes are formed in the panel, one air nozzles is arranged in each mounting hole, the head parts of the air nozzles are of semi-spherical aeration structure, the middle parts of the air nozzles are of cylindrical bayonet structures, the tail parts of the air nozzles are of outward extension limit structures, the bayonet structures are provided with the mounting holes in a bayonet interference fit manner, the external diameters of the limit structures of the air nozzles are larger than the bore diameters of the mounting holes, the limit structures are matched with the lower surface of the panel, the inner cavities of the air nozzles are cone frustum-like channels which are gradually increased from top to bottom, and the head parts of the air nozzles are provided with at least one self-closed needl