Anti-negative-pressure folding straw

Abstract

The invention provides an anti-negative-pressure folding straw. The anti-negative-pressure folding straw is characterized by adopting a thin-wall hollow-tube-shaped structure, wherein the section of the straw is provided with at least one lateral inwards-folded section; the section of the straw is of a circular thin-wall structure, and one section of one side is inwards-folded. The anti-negative-pressure folding straw provided by the invention is simple in structure and low in manufacturing cost; the straw can be flatly pressed and folded when not in use, and heaved by pinching when in use; when a plastic film or an aluminium foil to package a drink, a negative-pressure problem is solved by ventilation due to the existence of a notch.

Description

technical field [0001] The invention relates to the field of straws, in particular to a negative pressure-proof folding straw. Background technique [0002] As a simple and convenient drinking tool, the straw has been widely used. However, when sucking milk products such as boxes, the straw penetrates into the plastic film or aluminum foil packaging. Since the outer edge of the straw is a smooth cylindrical surface, it is easy to be tightly attached to the plastic film. Fitting together, there is no gap between the straw and the plastic film, so that when the liquid is sucked, a negative pressure will be created, making it difficult to suck the drink. [0003] Therefore, Patent No. 201110306093.7 "An Anti-Negative Pressure Straw" proposed a solution, using a hexagonal straw to add an indented gap, and after piercing through the gap, the air can circulate through the gap to solve the negative pressure, but the wall of this straw is too thick, The manufacturing cost is high, ...

AI Technical Summary

Problems solved by technology

[0002] As a simple and convenient drinking tool, the straw has been widely used. However, when sucking milk products such as boxes, the straw penetrates into the plastic film or aluminum foil packaging. Since the outer edge of the straw is a smooth cylindrical surface, it is easy to be tightly attached to the plastic film. Fitting, there is no gap between the straw and the plastic film, so that when the liquid is sucked, it will cause negative pressure, making it difficult to suck the drink

[0003] Therefore, Patent No. 201110306093.7 "An Anti-Negative Pressure Straw" proposed a solution, using a hexagonal straw to add an indented gap, and after piercing through the gap, the air can circulate through the gap to solve the negative pressure, but the wall of this straw is too thick, High manufacturing cost and inconvenient to carry

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