Concealed Exhausting Valve for Moisture-Proof Sealing Bag
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Solution Overview
Problem
Existing moisture-proof bags face challenges in ensuring airtight sealing, leading to residual air leakage, which can cause contents to deteriorate and result in unpleasant odors polluting the environment, and their manufacturing is costly due to complex structures and exposed valve components.
Innovation Solution
A moisture-proof sealing bag design featuring a concealed exhausting valve with a flexible belt and a spiral spring mechanism that allows for easy sealing and air evacuation, either manually or using a vacuum cleaner, to maintain a vacuum state and prevent moisture damage, while minimizing bag volume and avoiding wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional exhausting valve with upper and down valve elements is used, then the valve can function to exhaust air, but the structure becomes complex and manufacturing cost increases
Solution Approach 1:
The patent merges the upper valve element and down valve element into a single integrated exhausting valve assembly. The valve body contains both the upper valve element (with exhaust hole) and down valve element (pasted on inner bag body) as unified components, eliminating the need for separate assembly of multiple valve units. This reduces structural complexity while maintaining the dual-valve functionality for air exhaustion.
Solution Approach 2:
The exhausting valve is designed with a nested structure where the upper valve element is positioned within the valve body, and the down valve element is integrated into the bag body opening. The valve gate mechanism is nested within the valve body structure, allowing compact arrangement of multiple functional elements in a space-efficient manner that reduces overall device complexity.
2Ease of operation
If the upper valve element is exposed outside the bag body, then the valve can be operated, but the bag volume increases and wear and tear risk increases
Solution Approach 1:
The patent repositions the exhausting valve from an external protruding structure to an integrated component within the bag body's dimensional framework. The valve body is positioned such that its outer surface aligns with the bag body's outer surface, effectively moving the valve structure into the same dimensional plane as the bag body, thereby eliminating volume increase and external exposure.
Solution Approach 2:
The valve body outer surface is merged with the bag body outer surface to create a flush, integrated appearance. This combining of surfaces eliminates the protruding valve structure that would increase bag volume and expose the valve to external wear and tear, while the valve remains accessible for operation through the integrated design.
3Adaptability or versatility
If the bag is opened and sealed repeatedly, then the bag can be reused, but residual air remains causing odor leakage and content deterioration
Solution Approach 1:
The patent incorporates a vacuum exhaust function that can be activated before sealing the bag to remove residual air and moisture. This preliminary action of exhausting air through the valve mechanism prevents the accumulation of harmful residues that would cause odor leakage and content deterioration during subsequent repeated opening and sealing operations.
Solution Approach 2:
The exhausting valve is designed to enable the bag system to self-regulate internal air pressure and remove excess air automatically. The valve mechanism allows the bag to service itself by exhausting residual air after contents are placed inside, preventing odor leakage and content deterioration without requiring external intervention during repeated use cycles.
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 solution enables convenient repeated opening and sealing, prevents content deterioration, reduces bag volume, and maintains air quality by effectively removing residual air and moisture, while being cost-effective and structurally robust.
Implementation Method 1
an elastomer 24...pushed against the valve gate 23...to push the valve gate down
Implementation Method 2
a vacuum cleaner can be applied to inhale the residual air in the bag through the exhausting valve. Then the wet-proof sealing bag forms a status of vacuum
Data Source
AI summary
A moisture-proof sealing bag comprises a bag body and an exhausting valve. The bag body has an opening, which has a flexible belt on the opening end. A proper position under the flexible belt of the bag body has the exhausting valve. The exhausting valve is concealed inner the bag body, which comprises a valve body, an exhausting unit, a valve gate and an elastomer. The moisture-proof sealing bag has functions of moisture-proof and air-tightness so as to preserve the contents in the bag by use of sealing the opening of the bag with the flexible belt and exhausting the residual air with the exhausting valve.