Pressure Cooker Fool-Proof Buckling Structures for Alignment Safety
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Solution Overview
Problem
Pressure cookers face reduced pressure-resistance strength and safety risks due to improper buckling of the pot lid and pot body if they are not correctly aligned, which can lead to operational performance issues and potential user safety threats.
Innovation Solution
A cooking device with a pot lid assembly and pot body featuring fool-proof structures on the pot teeth that ensure precise alignment and buckling through one-to-one cooperation, enhancing stability and safety by preventing incorrect assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the pot lid and pot body are screwed together without proper buckling, then the assembly process is simple and fast, but the pressure-resistance strength decreases and safety is compromised
Solution Approach 1:
The fool-proof structures on the pot teeth perform preliminary alignment action before the screwing operation. The protrusions and recesses engage first to establish correct buckling position, ensuring that the buckling alignment is predetermined and verified before the main fastening action occurs, thus preventing incorrect assembly while maintaining operational simplicity
Solution Approach 2:
The fool-proof structures act as intermediary elements between the pot lid and pot body. These intermediate features (protrusions and recesses) mediate the alignment process, providing a verification mechanism that ensures proper buckling before the final screwing connection is established, thereby guaranteeing both ease of operation and reliability
2Manufacturing precision
If fool-proof structures are added to the pot teeth, then alignment accuracy and safety are improved, but the device complexity increases
Solution Approach 1:
The fool-proof structures are segmented into discrete protrusion and recess features located at specific positions on the pot teeth. This segmentation allows the alignment function to be distributed across multiple simple geometric features rather than requiring a single complex alignment mechanism, thereby improving manufacturing precision while minimizing the increase in device complexity
Solution Approach 2:
The fool-proof structures apply local quality modifications to specific areas of the pot teeth. Rather than changing the overall complexity of the pot lid or pot body, the invention introduces localized protrusions and recesses only where needed for alignment, maintaining simplicity in the majority of the structure while achieving precise alignment where critical
Data Source
AI summary
A cooking device includes a pot lid assembly and a pot body. The pot lid assembly includes a pot lid including a plurality of first pot teeth. The pot lid including at least two first fool-proof structures each formed at one of the plurality of first pot teeth. The pot body includes a plurality of second pot teeth. The pot body includes at least two second fool-proof structures each provided at one of the plurality of second pot teeth. The pot lid and the pot body are configured to be buckled with each other via a one-to-one cooperation between the at least two first fool-proof structures and the at least two second fool-proof structures.