Retractable straw

Abstract

The invention discloses a retractable straw. The retractable straw is composed of a plurality of tubes, which are arrayed in a manner of gradually increased or decreased diameters, in a sleeve joint manner; the inner and outer tubes can be pulled out or retracted back; a connection structure is arranged at a connection part of each two adjacent tubes; each connection structure is formed by arranging one section of convex tube at an end part of the tube with a small diameter at a connection end of the adjacent tubes, arranging one circle of convex ring at a part which is 6 to 8mm from the convex tube, and one section of necking-down section at an end part of the tube with a large diameter at the connection end of the adjacent tubes; the convex tubes, the outer diameter of the convex rings and the inner diameter of the necking-down sections are matched and in sleeve joint; the convex tubes, the convex rings and the necking-down sections, and the tubes from an integrated structure; at least two fixing buckles are arranged at the connection ends of the tubes provided with the convex tubes, except a first tube and a final tube; the outer surfaces of the fixing buckles on the tubes are grooves; the inner surfaces of the tubes are bulges; the fixing buckles and the tubes form an integrated structure. The retractable straw has the advantages of simple structure, good sealing performance, convenience for utilization and storage and capability of being repeatedly utilized, effectively reduces the environment pollution and is more environmentally friendly.

Description

technical field [0001] The invention relates to a straw, in particular to a retractable straw. Background technique [0002] At present, restaurants, beverage stores, canteens and other catering establishments are inseparable from straws when eating liquid food. However, the straws commonly used in the above-mentioned places are all disposable straws, which waste materials and cannot be reused, generate a large amount of plastic waste, pollute the environment, are not conducive to environmental protection, and have brought certain impacts on our lives. Existing also has some reusable drinking straws, but all are non-retractable, store and take up a large space. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a retractable straw with simple structure, good sealing performance, convenient use and storage, reusable stainless steel material, effectively reducing environmental pollution and being more environmentally...

AI Technical Summary

Problems solved by technology

However, the straws commonly used in the above places are all disposable straws, which waste materials and cannot be reused. They generate a lot of plastic waste, pollute the environment, are not conducive to environmental protection, and have a certain impact on our lives.

There are also some reusable straws, but they are all non-retractable and take up a lot of space for storage

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