| 摘要 |
A snorkel breathing tube regulator includes: a tubular hollow base and a supplementary tube which jointly form an inverted U-shaped structure, and a float provided in the supplementary tube. During snorkeling, the float is buoyed upward as the water surface rises in relation to the snorkel breathing tube regulator. If the water surface continues to rise in this way, the float will eventually form a seal that prevents water from entering the base. On the other hand, when the water surface falls in relation to the snorkel breathing tube regulator, the float falls along to allow smooth ventilation. Thus, ventilation is regulated with enhanced sensitivity, and splashing water is also prevented from entering the base. Furthermore, the snorkel breathing tube regulator can be easily produced.
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