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The design of Anti-splash bottle mouth is inspired by an ancient Chinese diversion technique, namely bamboo-pipe diversion.
A device to direct flow is added to the original bottle mouth, so as to converge the liquid into a line and thus avoid splashing. With an elastic rubber ring served as connector , the device to direct flow can contract freely when the bottle cap is put on. Without changing the design of the bottle cap and original bottle mouth, the problem of splashing liquid is easily solved.