Spill-Proof Drinking Container with Cleanable One-Way Valve Straw
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Solution Overview
Problem
Current spill-proof liquid containers are difficult to clean due to numerous parts and crevices that trap dirt and debris, and often require complex manipulation to transition between drinking and leak-proof modes.
Innovation Solution
A lid assembly featuring a pivotably mounted internal one-way spill-preventing valve and a closable drinking spout with an overmolded drinking sleeve, which reduces the number of cracks and crevices and allows easy access for cleaning by incorporating a hinged valve straw with a tether for secure separation during cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a simple drink hole is used, then ease of operation is improved, but spill prevention capability deteriorates
Solution Approach 1:
The one-way valve automatically opens when the user sucks on the spout and automatically closes when the user stops sucking, without requiring manual manipulation. The valve serves itself by using the user's suction action to trigger opening and gravity/pressure to trigger closing, eliminating the need for separate manual operation mechanisms.
Solution Approach 2:
The one-way valve mechanism is extracted from traditional manual flip-top or crimped straw systems and integrated as an automatic internal component within the spout assembly, separating the spill prevention function from manual operation requirements.
2Reliability
If multiple parts are used to achieve spill-proof functionality, then spill prevention capability is improved, but device complexity increases
Solution Approach 1:
The one-way valve is integrated directly into the spout assembly, merging the spill prevention function with the drinking spout structure. This consolidation reduces the number of separate components compared to traditional systems that use separate flip-tops, crimped straws, or manual valve mechanisms.
Solution Approach 2:
The spout assembly serves multiple functions: it allows drinking when the valve opens, prevents spills when closed, and provides an easy-to-clean smooth surface. The integrated design combines drinking, spill prevention, and cleanability into a single multi-functional component system.
3Reliability
If multiple parts with cracks and crevices are used, then spill-proof functionality is improved, but ease of cleaning deteriorates
Solution Approach 1:
The spout features a locally optimized smooth, crack-free surface in the areas that contact liquid and require cleaning. The one-way valve and spout body are designed with smooth transitions and eliminated crevices in critical zones, while maintaining structural integrity for spill prevention.
Solution Approach 2:
The one-way valve is integrated into the spout assembly rather than being a separate component, merging what would traditionally be multiple parts with potential gaps and crevices into a single smooth-surface component that is easier to clean.
4Reliability
If manual manipulation is required to transition between drink mode and leak-proof mode, then spill prevention capability is improved, but ease of operation deteriorates
Solution Approach 1:
The one-way valve automatically transitions between closed (spill-proof) and open (drinking) states based on user suction action and internal pressure changes, eliminating the need for manual flipping, crimping, or other manual manipulation operations.
Solution Approach 2:
The valve transitions dynamically between states based on operational conditions rather than requiring manual intervention. The system adapts its state (closed or open) automatically in response to user action and pressure differentials, providing effortless operation.
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 enhances cleanability by minimizing dirt accumulation, providing easy access to internal components, and ensuring the container remains spill-proof even when the spout is open, while allowing effortless transition between modes without complex manipulation.
Implementation Method 1
a spout assembly (18, 22) including a one way valve (54) that allows liquid flow in a first direction but prevents liquid flow in a second, opposite direction
Implementation Method 2
The pivotable collar or straw nut (50) is attached to the straw tube (48)
Data Source
AI summary
An easily cleanable liquid container includes a straw having a pivotably mounted internal one-way spill preventing valve and a closable drinking spout with an overmolded drinking tip. The pivotably mounted internal one-way spill preventing valve is retained in a pivotable straw nut that is pivotably attached to a straw tube, which allows easy access to internal straw components for easier cleaning. The overmolded drinking tip and a wiper seal limit the number of cracks and crevices that may collect dirt or other contaminants.