No-spill drinking container
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Solution Overview
Problem
Current spill-proof water bottles have complex designs with many parts and crevices that are difficult to clean, and existing solutions either introduce leaks or make flushing and drying challenging.
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 tethered hinged valve straw and a locking mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex spill-proof valve mechanism is used, then spill-proof functionality is improved, but device complexity and difficulty of cleaning increase
Solution Approach 1:
The spill-proof valve is divided into separate functional components: a float element that moves independently within the valve body, a separate drain hole, and a distinct overflow hole. This segmentation allows each component to be simple in shape while collectively providing reliable spill-proof functionality, and also facilitates easier cleaning by allowing disassembly.
Solution Approach 2:
The float element is extracted as a separate movable component from the valve body, allowing it to be removed for cleaning. The drain hole and overflow hole are also designed as separate openings rather than integrated complex channels, making the overall structure simpler and more cleanable while maintaining spill-proof operation.
2Reliability
If multiple parts and crevices are present for spill-proof operation, then spill-proof functionality is improved, but ease of cleaning deteriorates
Solution Approach 1:
The float element is designed to be movable within the valve body, dynamically adjusting its position based on liquid level. This dynamic component provides spill-proof functionality through its movement rather than through complex fixed structures, and the mobility of the float also enables it to be removed for thorough cleaning of hard-to-reach areas.
Solution Approach 2:
The float element acts as an intermediary mechanism between the liquid level and the valve opening. Instead of using complex mechanical linkages or multiple moving parts, the float directly controls the valve opening through its buoyancy-driven movement, simplifying the structure while maintaining reliable spill-proof operation and improving cleanability.
3Reliability
If a bite valve design is used, then spill-proof functionality is improved, but ease of cleaning deteriorates due to buildup
Solution Approach 1:
The float element is extracted as a separate removable component from the valve body, allowing users to take out the float for cleaning. This separation enables thorough cleaning of the float's exterior surfaces and the interior of the valve body, eliminating the cleaning access problems associated with integrated bite valve designs where contaminants can accumulate in hard-to-reach areas.
4Ease of operation
If a simple drink hole is used, then ease of cleaning is improved, but spill-proof functionality deteriorates as users cannot drink without spilling
Solution Approach 1:
The float element provides spill-proof functionality through its own buoyancy-driven movement without requiring external control mechanisms. The float automatically rises with liquid level and blocks the valve opening when the container is tilted, providing self-regulating spill-proof operation. This simple mechanism maintains ease of cleaning while enabling reliable spill-proof drinking.
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 provides a spill-proof and easy-to-clean liquid container that prevents dirt buildup, allows for thorough cleaning of internal components, and ensures easy access to the valve for maintenance, while maintaining leak-proof functionality.
Implementation Method 1
a straw having a pivotably mounted internal one-way spill preventing valve
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.