Straw Cup Non-Return Pad Design for Leakage Prevention and Hygiene
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Solution Overview
Problem
Existing straw cups face issues with leakage when tipped over and contamination of straws, as well as environmental concerns due to disposable plastic materials.
Innovation Solution
A straw cup design featuring a cup with an upper lid, a straw base, a non-return pad for leakage prevention, and an outer cover with a loop handle for easy carrying, ensuring the straw is protected from contamination and preventing liquid leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the straw is exposed outside the cup, then it is convenient for drinking, but the straw is easily contaminated by dirt, stains, mosquitoes and insects
Solution Approach 1:
The straw is nested inside the cup body when not in use, with only the necessary portion extending outward for drinking. The cup structure provides a protective cavity that shields the straw from external contaminants while maintaining accessibility during use.
Solution Approach 2:
The straw is pre-positioned within the cup structure during manufacturing, eliminating the need for separate insertion and ensuring proper placement that prevents contamination from the outset.
2Reliability
If a flip cap is used to hold the straw, then liquid flow is prevented, but the flip cap is easily opened by accidental touch causing leakage
Solution Approach 1:
The flip cap mechanism is removed entirely from the design. Instead, the straw is directly integrated into the cup structure with a fixed positioning system that prevents accidental movement while maintaining liquid flow control through the straw's positioning alone.
Solution Approach 2:
Instead of using a movable flip cap to control liquid flow, the design inverts the approach by using a fixed straw structure within the cup that naturally controls flow through its positioning, eliminating the need for a movable closing mechanism.
3Reliability
If disposable plastic straws are used, then hygiene is maintained through single use, but environmental pollution increases due to non-degradable material
Solution Approach 1:
The material parameter of the straw is changed from disposable plastic to reusable food-grade silicone or similar durable materials. This transformation allows the straw to be cleaned and reused multiple times, maintaining hygiene through proper sanitation while eliminating the environmental pollution associated with single-use plastic.
Solution Approach 2:
Instead of discarding the straw after single use, the design enables recovery and reuse of the straw through the cup system. The reusable straw can be removed, cleaned, and reinserted for multiple uses, converting a disposable item into a sustainable reusable component.
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 design effectively prevents leakage when the cup is tipped over and provides easy carrying and hygiene benefits by keeping the straw clean, addressing the inconvenience and contamination issues of current straw cups.
Implementation Method 1
A non-return pad for leakage prevention is arranged at the straw base
Data Source
AI summary
A straw cup is provided. The straw cup includes a cup and an upper lid which is mounted with a straw base therein and connected with a straw. A non-return pad used to prevent leakage is arranged at the straw base which is covered and fastened with an outer cover, and the outer cover is provided with a loop handle for carrying. Thereby users can drink beverages by the straw on the upper lid and the straw is protected from contamination by the upper lid. Moreover, the beverage will not leak out when the straw cup is tipped over and users can carry the straw cup easily.