A drinking straw with a built-in nanobubble generating mechanism

Abstract

To provide a drinking straw with a built-in nanobubble generating mechanism, which allows a user to constantly ingest a beverage containing nanobubbles through the straw without requiring any special operation. [Solution] The straw body sucks fluid from tip 4 and simultaneously takes in air from within the liquid through hole 5. Shear stress is generated as the fluid passes through spiral part 2 inside the straw body. As the fluid passes through the straw tube and finishes passing through spiral part 2, the water pressure drops suddenly, creating a pressure difference. Repeated pressure differences generate nanobubbles due to shear stress and the Venturi effect.

Description

[Technical Field]

[0001] The present invention relates to a straw for consuming beverages, and more particularly to an improved straw that has the function of generating nanobubbles (or microbubbles) in beverages. [Background technology]

[0002] Regular straws do not have a bubble-generating mechanism and do not contribute to improving the quality or functionality of beverages.

[0003] Nanobubbles are known to contribute to maintaining the flavor of beverages, assisting in sterilization, and promoting absorption.

[0004] However, there is no technology that can stably generate nanobubbles using a portable straw-type structure.

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-020005 [Patent Document 2] Japanese Patent Publication No. 2022-008179 [Patent Document 3] Japanese Patent Publication No. 2020-041331 Summary of the Invention

[0006] We propose a technology that uses pressure difference, fluid collision, porous film, and Venturi structure to generate nanobubbles in liquid that is sucked and pressurized through a straw. [Problem to be solved by the invention]

[0007] The straw has a built-in pressure chamber and venturi structure, allowing nanobubbles to be generated naturally by the suction flow of the beverage.

[0008] The material used is highly corrosion-resistant resin, elastomer, or silicone. [Effects of the Invention]

[0009] Users can constantly consume beverages containing nanobubbles through a straw without any special operations.

[0010] It can also be used for medical, nursing care, health and pet purposes. [Means for solving the problem]

[0011] We propose a technology that uses pressure difference, fluid collision, porous film, and Venturi structure to generate nanobubbles in liquid that is sucked and pressurized through a straw. [Brief explanation of the drawings]

[0012] [Figure 1] Appearance of the straw [Figure 2] Cross section of a straw [Figure 3] When in use

[0013] Figure 1 shows the external appearance, Figure 2 shows the storage state, and Figure 3 shows the fluid flow during use. When fluid is sucked through the straw, it passes through the spiral part inside the straw, generating shear stress in the spiral part. By repeating this action, multiple shear stresses and the Venturi effect are generated. By providing a hole at the tip, air present in the liquid is taken in, effectively generating nanobubbles. [Explanation of symbols]

[0014] 1 straw body 2 spiral part 2 3 nozzles 3 4 Tip 4 5 holes 5 6 Collar 6 7 Flow Channel 7

Claims

1. A drinking straw for sucking up a beverage from a beverage container, made of silicone or elastomer, which has a spiral portion inside the straw and generates nanobubbles due to the shear stress of the fluid passing through the spiral portion.

2. The drinking straw of claim 1, wherein the spiral cutting start position of the spiral portion is 20 mm to 180 mm from the mouthpiece, the number of spiral rotations is 10 to 30, the inner diameter of the ring crest is 3 mm to 8 mm, the inner diameter of the spiral portion is 0.3 mm to 1.2 mm, and the inner diameter of the spiral portion has a ring pitch of 3 mm to 5 mm.

3. The drinking straw of claim 1, characterized in that it has 0 to 4 holes with a diameter of 0.3 mm to 0.6 mm located 5 to 30 mm from the tip of the drinking straw to promote the generation of nanobubbles.

4. The drinking straw of claim 1 has a collar to prevent rolling.

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