Vacuum Bag Valve Diaphragm Assembly for Airtight One-Way Sealing
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Solution Overview
Problem
Existing vacuum storage bag valves are prone to disassembly errors, air leakage, and safety risks due to non-foolproof designs, leading to inadequate air tightness and potential suffocation hazards, especially for pets and infants.
Innovation Solution
A valve design featuring a flexible diaphragm secured at three or more evenly distributed edge portions to the body, with a central air passage that reversibly moves to block or allow airflow, and polygonic coupling regions for enhanced stability and airtightness, preventing dislocation and leakage, and incorporating a pivotable lid for improved safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the valve uses a simple hinge design for the lid, then the device complexity is reduced, but the reliability deteriorates due to easy disassembly by mistake and wearing off
Solution Approach 1:
The hinge connection is designed with asymmetric geometry where the lid has a protrusion that fits into a corresponding recess in the holder. This asymmetric design allows the lid to pivot only in one direction (opening) while preventing accidental disassembly, as the hinge cannot be separated by simple linear force. The asymmetric shape ensures that the lid must be deliberately manipulated to open, solving the reliability issue while maintaining structural simplicity.
2Ease of manufacture
If the diaphragm is secured at only two edge portions, then the ease of manufacture is improved, but the reliability deteriorates due to potential dislocation and air leakage
Solution Approach 1:
The diaphragm is secured at three or more specific edge portions rather than uniformly across the entire edge. This local quality approach places securing points at critical locations where the diaphragm is most prone to dislocation, providing enhanced reliability at these vulnerable points while maintaining ease of manufacture by not requiring complete circumferential securing. The selective positioning of securing points optimizes both manufacturing simplicity and air tightness reliability.
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 provides a valve with extended service life, improved air tightness, and enhanced safety by preventing disassembly errors and air leakage, ensuring reliable operation and safety in vacuum storage bags.
Implementation Method 1
a mainly flat diaphragm (300) made of a flexible material... The diaphragm (300) has a first position where the air passage (210) is covered by a central portion (310) of the diaphragm (300), such that air flow through the air passage (210) is blocked, and a second position where the central portion (310) of the diaphragm (300) is reversibly moved away from the air passage (210)
Data Source
AI summary
A valve for one-way transfer of air from vacuum storage bags, including a body, a flat diaphragm made of a flexible material, and a holder for securing the diaphragm to the body; a central portion of the body includes an air passage; the diaphragm has a first position where the air passage is covered by a central portion of the diaphragm thus blocking air flow through the air passage, and a second position where the central portion of the diaphragm is reversibly moved away from the air passage thus allowing air flow through the air passage; the diaphragm is secured between the body and the holder, at its three or more distinct edge portions of the diaphragm. A vacuum storage bag equipped with the valve.