Releasable Mouthpiece Locking for Child-Resistant Cartridge Access
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Solution Overview
Problem
Existing personal vaporization devices face issues with child-proof mouthpiece locking mechanisms that are permanently connected, preventing access to the e-liquid reservoir for refilling or testing, and leading to contamination during destructive removal.
Innovation Solution
A releasable locking mechanism using doubly hooked arms on the mouthpiece and a release pin allows for secure, child-resistant access to the vaporization cartridge while enabling easy removal and refilling, with a locking adapter that accepts interchangeable mouthpieces via friction or press fit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a permanently connected mouthpiece locking mechanism is used, then child-proof safety is improved, but access to e-liquid reservoir for refilling or testing is prevented
Solution Approach 1:
The locking mechanism is divided into separate components: a mouthpiece assembly with hooks and a cartridge assembly with corresponding engagement features. This segmentation allows the mouthpiece to be detached from the cartridge through a controlled release mechanism, enabling access to the e-liquid reservoir while maintaining child-proof safety during normal use.
Solution Approach 2:
The locking mechanism transitions from a static permanent connection to a dynamic releasable connection. The mouthpiece can be locked in place during normal vaping use and then released through a specific action (such as applying force to a release tab or button), allowing controlled access when needed while maintaining safety during operation.
2Reliability
If a permanently connected mouthpiece locking mechanism is used, then child-proof safety is improved, but the mouthpiece cannot be removed for saving cartridge contents or testing
Solution Approach 1:
The device is segmented into removable mouthpiece and cartridge components. The mouthpiece assembly includes hooks that engage with corresponding features on the cartridge, allowing the mouthpiece to be detached from the cartridge body. This enables users to remove the mouthpiece for saving cartridge contents or testing purposes while maintaining child-proof safety during normal use.
Solution Approach 2:
The mouthpiece can be extracted from the cartridge through a controlled release mechanism. The hooks on the mouthpiece can be disengaged from the cartridge features by applying force to a release mechanism, allowing the mouthpiece to be taken out for saving cartridge contents or testing while maintaining safety during normal operation.
3Ease of operation
If a releasable mouthpiece locking mechanism is used, then access to e-liquid reservoir is enabled, but device complexity increases
Solution Approach 1:
The locking mechanism is segmented into simple, discrete components: hooks on the mouthpiece and corresponding engagement features on the cartridge. This segmentation simplifies the overall structure compared to complex multi-component locking systems, while still enabling controlled access to the e-liquid reservoir through the release mechanism.
4Ease of manufacture
If a releasable mouthpiece locking mechanism is used, then refilling capability is enabled, but manufacturing complexity increases
Solution Approach 1:
The locking mechanism is divided into separate mouthpiece and cartridge components with standardized engagement features. This segmentation simplifies the manufacturing process by allowing independent production of each component, which can then be assembled together. The standardized interface enables refilling capability while maintaining relatively simple manufacturing procedures.
Data Source
AI summary
A releasable mouthpiece locking mechanism comprises one or more pairs of flexible, hooked arms that can be disposed in an interior portion of a mouthpiece housing. The arms can engage a tube of a vaporization cartridge to lock the vaporization cartridge and can be radially displaced to release the vaporization cartridge.