Flow rate regulating structure and bubbler

A flow rate regulating structure, comprising:

• a water passing member, provided with an accommodating cavity with an opening on a top of the water passing member and a water passing cavity whose opening is at a bottom wall of the accommodating cavity;
• wherein a periphery of a bottom wall of the water passing cavity is circumferentially provided with a plurality of water passing holes;
• and
• a middle part of the bottom wall of the water passing cavity is protruded with a spreading platform, the spreading platform comprises a first protrusion, the bottom wall of the water passing cavity is provided with a first boss group, the first boss group comprising a plurality of first bosses and a plurality of second bosses, and all of the first bosses and all of the second bosses are evenly and circumferentially arranged, and first gaps communicating with the water passing holes are formed between two of the first bosses adjacent to each other, the second bosses are all located on inner sides of the first bosses and respectively face the first gaps, and
• an elastic member, comprising an elastic member body;
• wherein a periphery of the elastic member body abuts against the bottom wall of the accommodating cavity and shields the water passing cavity;
• an inner hole passing through the elastic member body and communicating with the water passing cavity is provided on the elastic member, and the inner hole faces the spreading platform.