Emergency Evacuation Oxygen Mask with Rotating Coupling
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Solution Overview
Problem
Existing emergency evacuation oxygen masks are cumbersome and difficult for ordinary people, especially elderly individuals, children, and women, to use effectively during emergencies due to their bulkiness and the need to carry heavy oxygen tanks, which hinders mobility and portability.
Innovation Solution
The emergency evacuation oxygen mask features a compact design with a hood, an oxygen canister, and a coupling mechanism that allows for easy and rapid oxygen supply when the upper cover or oxygen canister is rotated, ensuring pure oxygen is provided only during the critical evacuation period.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a mask provided with self-contained breathing function including an oxygen tank is used, then oxygen supply capability is improved, but weight and mobility are worsened
Solution Approach 1:
The oxygen supply system is segmented into a reusable mask body and a separate disposable oxygen tank. This allows the heavy oxygen tank to be replaced rather than carried continuously, reducing the weight burden on users during evacuation while maintaining reliable oxygen supply capability when needed.
Solution Approach 2:
The patent changes the operational parameters by providing oxygen only during the critical golden time of evacuation rather than continuously. This temporary, targeted oxygen supply reduces the required tank volume and weight while maintaining adequate oxygen capability for the specific emergency scenario.
2Weight of moving object
If a purifying canister mask is used, then portability is improved, but oxygen supply capability is worsened
Solution Approach 1:
The patent merges the lightweight purifying canister mask design with a detachable oxygen tank attachment. The mask body remains lightweight and portable like traditional smoke masks, but gains oxygen supply capability through the separate, attachable oxygen tank that connects via a coupling mechanism.
Solution Approach 2:
The oxygen supply function is extracted as a separate, detachable component (oxygen tank) from the mask body. This allows the mask to maintain its lightweight, portable characteristics while enabling oxygen supply capability when the tank is attached during emergency evacuation.
3Reliability
If a complex coupling mechanism is used for oxygen discharge, then oxygen supply control is improved, but ease of operation is worsened
Solution Approach 1:
The coupling mechanism is pre-configured with alignment features and guide structures that automatically orient the oxygen tank correctly when attached. This preliminary arrangement of components ensures that the complex coupling mechanism operates reliably while requiring minimal manual adjustment from the user during emergency use.
Data Source
AI summary
Proposed is an emergency evacuation oxygen mask provided with a hood configured to be worn on a user's head and an oxygen canister configured to supply oxygen to the user who wears the hood. The emergency evacuation oxygen mask includes an upper cover in which the hood is accommodated, a female coupling portion coupled to a lower end portion of the upper cover and connected to an oxygen supply port that is provided at the hood, and a male coupling portion provided on the oxygen canister and coupled to the female coupling portion, wherein when the upper cover or the oxygen canister is rotated, oxygen is discharged from the oxygen canister.