[Haichuan Equipment Guess] Leisure Chapter - Why is the thread of the carbonated drink bottle mouth discontinuous?
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Did you notice it and don't know why?
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It should be to reserve buffer space for volume expansion.
It has enhanced self-locking function. Continuous thread, even if it works, has 3 to 4 teeth. I don’t know if that’s right?
The internal threads of carbonated drink bottle caps are also discontinuous, and they cooperate with the discontinuous threads of the bottle body during the opening process to provide intermittent pressure relief.
No, the self-locking depends on the end of the bottle cap.