Memory folding sleeve for drinking straw of water cup

Abstract

This utility model discloses a memory folding sleeve for a water cup straw, which is not easily blocked in the water outlet channel and has a wide range of applications. It includes an outer cylinder and a temperature-sensitive folding component. The outer cylinder is tubular and made of flexible material, including a connecting part and a bending part. The upper and lower ends are the water outlet and the water inlet, respectively, and a water flow channel runs through the middle. The connecting part is located at least at one end of the water outlet. The temperature-sensitive folding component is covered inside the cylinder wall of the bending part and can be triggered to change between two states, bending and extension, according to changes in ambient temperature. When the temperature-sensitive folding component is bent, it drives the bending part to bend and fold. At this time, the inner wall of the bending part abuts and seals and closes the water flow channel. When the temperature-sensitive folding component returns to the extension state, the bending part also returns to its original state and opens the water flow channel.

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