Multi-push button for vacuum food storage container having vacuum valve
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional vacuum food storage containers face issues with maintaining a weak vacuum state due to abrasion, damage, torsion, and gas pressure, leading to air leakage and spoilage of food.
Innovation Solution
A multi-push button system with a circular flange, support part, height-varying part, and airtightness-maintaining rod, formed from soft synthetic resin or silicone, that maintains airtightness and forms multiple vacuum states by pressing the cover and push button, preventing air inflow/outflow even with abrasion or impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single airtight member and vacuum holding member are used to maintain vacuum, then the structure is simple, but the airtightness deteriorates due to abrasion, damage, and torsion over time
Solution Approach 1:
The vacuum valve is divided into multiple independent airtight members (first airtight member and second airtight member) with separate air inflow/outflow holes. This segmentation allows each member to independently maintain airtightness, so that wear or damage to one member does not compromise the overall vacuum sealing capability.
Solution Approach 2:
The patent incorporates multiple airtight members and vacuum holding members as redundant backup systems before airtightness failure occurs. When one airtight member deteriorates, the other members continue to provide sealing function, cushioning against complete vacuum failure and extending the service life of the vacuum container.
2Reliability
If the airtight member is pressed against the boss part to maintain vacuum, then the initial airtightness is good, but the airtightness fails due to long-term use, washing, and impact
Solution Approach 1:
The pressing mechanism is segmented into multiple pressing parts (first pressing part and second pressing part) that independently press against different airtight members. This distributes the mechanical stress and prevents single-point failure, enhancing the duration of airtightness maintenance under various usage conditions.
Solution Approach 2:
Different airtight members are positioned at different locations (first airtight member at first boss part, second airtight member at second boss part) with localized pressing forces. This local quality distribution ensures that each airtight member operates optimally in its specific location, improving overall durability against impact and washing.
3Device complexity
If a single vacuum holding member contacts the airtight member, then the structure is simple, but gas pressure from food oxidation causes air leakage
Solution Approach 1:
Multiple vacuum holding members (first vacuum holding member and second vacuum holding member) are distributed to contact different airtight members. This segmentation of the vacuum holding function allows the system to withstand gas pressure from food oxidation better, as the pressure is distributed across multiple contact points rather than concentrating on a single point.
4Strength
If impact is applied to the container body and cover, then the container is durable, but torsion between airtight member and vacuum holding member causes air introduction
Solution Approach 1:
The vacuum system is segmented into multiple independent airtight members and vacuum holding members, each capable of withstanding impact forces independently. When impact occurs, the torsional stress is distributed across multiple joints rather than concentrating on a single connection, preventing air leakage and maintaining vacuum reliability.
Data Source
AI summary
The present invention relates to a push button made from one selected from soft synthetic resin and soft silicone, comprising: a protruding annular rim protruding downward from the circumferential direction of the perimeter of a support part; a guide groove for the linear movement of a pressing part, which is recessed downward from a portion at which the outer circumferential end portion of the pressing part and the upper end of a height-varying part are in contact with each other; and a cylindrical airtightness-maintaining rod for vertically moving downward by the pressing of the pressing part.