Leak-Resistant Cup Diaphragm Valve for Low-Vacuum Drinking
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Solution Overview
Problem
Conventional leak-resistant drinking cups for young children face challenges in balancing a strong seal with ease of use, as they often require significant vacuum pressure to open, leading to potential leaks and difficulties in cleaning and reassembly.
Innovation Solution
A leak-resistant drinking cup design featuring a flexible diaphragm that moves between sealed and unsealed positions using vacuum pressure, with a simplified structure for easy cleaning and assembly, reducing the need for high vacuum pressure and minimizing the risk of leaks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a strong seal is used to prevent liquid leakage, then leak resistance is improved, but the vacuum pressure required to open the valve increases, making it harder for children to use
Solution Approach 1:
The valve is divided into multiple sealing elements distributed across a larger area rather than a single concentrated seal. This segmentation allows the sealing function to be distributed, reducing the vacuum pressure needed at any single point while maintaining overall leak resistance.
Solution Approach 2:
The sealing mechanism transitions from a point-based or small-area seal to a distributed multi-point sealing system across a larger surface area. This dimensional expansion of the sealing interface reduces the pressure concentration and makes valve opening easier for children.
2Reliability
If the valve is permanently attached to the cover for strong sealing, then leak resistance is improved, but cleaning becomes difficult and may require destruction of components
Solution Approach 1:
The valve assembly is segmented into separable components including the valve body, cover, and container portions. This segmentation enables the valve to be detached for thorough cleaning while maintaining strong sealing when assembled, resolving the conflict between permanent attachment for sealing and separability for cleaning.
3Device complexity
If a small valve is used under the spout, then the cup structure is compact, but substantial vacuum pressure is required to actuate the valve
Solution Approach 1:
The valve sealing interface is expanded from a small concentrated area to a larger distributed area across the valve body. This dimensional expansion increases the surface area available for vacuum actuation, reducing the pressure required to open the valve while maintaining a compact overall cup structure.
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 allows for easy drinking with reduced vacuum pressure requirements and facilitates thorough cleaning and reassembly, enhancing user experience and safety by minimizing the risk of leaks and component loss.
Implementation Method 1
The diaphragm is moveable from the sealed position to the unsealed portion by a vacuum being applied to the diaphragm by a user sucking on the liquid discharge member
Implementation Method 2
The vacuum causes the diaphragm to flex toward the container and at least in part away from the closure member
Data Source
AI summary
A leak resistant drinking cup has a container with an open top and a lid assembly for removable attachment to the container for selectively closing the open top. The lid assembly includes a liquid discharge member for allowing liquid in the container to exit the cup. A closure member is adapted for placement adjacent the open top of the container when the lid assembly is attached to the container. A flexible diaphragm is moveable between a sealed position and an unsealed position. The diaphragm is moveable from the sealed position to the unsealed portion by a vacuum being applied to the diaphragm by a user sucking on the liquid discharge member. The vacuum causes the diaphragm to flex toward the container and at least in part away from the closure member and thereby move the diaphragm from the sealed position to the unsealed position.