Reusable, foldable, drinking straw in storage case
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Solution Overview
Problem
The widespread use of single-use plastic straws results in significant environmental pollution, and existing reusable straws are often inconvenient to carry and store due to their bulkiness and fragility.
Innovation Solution
A foldable reusable drinking straw design featuring a rigid external tube formed of multiple segments and a flexible internal tubing made of elastic material, which can be easily stored in a compact configuration and cleaned using a provided cleaning device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If reusable straws are made of glass or metal, then they can be reused multiple times, but they become long and inconvenient to carry around and require bulky cases for storage
Solution Approach 1:
The external tube is divided into multiple rigid segments that can be separated from one another and slideable along the flexible internal tubing. This segmentation allows the straw to be compacted for portability while maintaining structural integrity during use
Solution Approach 2:
The straw transitions between static extended configuration (for drinking) and dynamic folded configuration (for storage). The flexible internal tubing enables this dynamic transformation, allowing the straw to adapt between long and compact states
2Reliability
If glass straws are used, then they are reusable, but they are easy to break and need a bulky case to keep them from snapping
Solution Approach 1:
The internal tubing is made of flexible material that can bend and flex without breaking, replacing the fragile glass structure while maintaining the reusable function. This flexible shell allows the straw to withstand deformation during folding and storage
Solution Approach 2:
The external tube is segmented into multiple rigid sections that can separate during folding, preventing the kind of snapping that occurs with continuous glass structures. The segments can slide along the flexible internal tubing without breaking
3Object-affected harmful factors
If reusable straws are carried everywhere, then they can avoid single-use plastic, but they require a case that is even bigger and bulkier than the straws themselves
Solution Approach 1:
The segmented external tube sections nest within each other during folding, while the flexible internal tubing is contained within the external tube segments. This nested configuration dramatically reduces the storage volume required
Solution Approach 2:
The straw dynamically transforms from an extended state (requiring large storage) to a compact folded state (requiring minimal storage). This dynamic capability allows the same object to serve both functional and portable storage requirements
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The straw is easy to carry, store, and clean, maintaining its functionality while reducing environmental impact by being more convenient and sustainable than traditional reusable straws.
Implementation Method 1
The internal tubing being formed of an elastic material for conducting liquid through the passageway and being impermeable to liquids
Data Source
Figure 1
Figure 2A
Figure 2B
AI summary
A reusable drinking straw (100) that is foldable into a compact configuration for storage and easily transportable in a storage case (300). The straw (100) comprises a preferably rigid external tube (102) and a flexible internal tubing (200) that is foldable to a compact configuration for storage. In a folded configuration, the reusable straw (100) has a significantly reduced length of approximately one-half to one-fourth of its extended length when in use. The external tube (102) of the straw (100) is preferably formed of multiple tubular segments (104) for supporting the flexible internal tubing (200) in the extended configuration during use as a drinking straw (100). A simple cleaning device is provided to clean the straw (100) after use. A storage case (300) is provided to store the straw (100) in the folded configuration in a compact form and to store the cleaning device.