| 摘要 |
A breathing structure of snorkeling apparatus of present invention is characterized in that a ventilating valve is provided between a space formed by tube body under main tube with main body under mouthpiece and above exhaust valve, the ventilating valve includes a valve seat and a valve plate, a through hole connecting with main tube is provided on the valve seat, the valve plate which can cover the through hole and its specific body; the structure of the valve plate is designed to form movement by means of closing as blowing and opening as sucking, which can make snorkelers breathe fully. A recess provided on the main body, which is a stagnant position as the valve plate being floated off. The specific gravity of the valve plate for ventilating valve is between 0.95-0.2.
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