Oval Pressure Cooker Lid Locking Assembly for First-Try Closure
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Solution Overview
Problem
Existing cooking appliances with oval pressure cookers face difficulties in properly closing the pot lid on the first try due to the need for multiple adjustments, leading to operational challenges and reduced reliability.
Innovation Solution
A cooking appliance design featuring a pot lid with orthogonal long and short axes, a limiting boss on the pot body to guide and lock the lid, and a pot lid locking assembly with guide rails and snaps to ensure accurate and secure closure, enhancing structural strength and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional pot lid design is used without positioning features, then the structure is simple, but the lid cannot be properly closed on the first try and requires multiple adjustments
Solution Approach 1:
The patent applies preliminary action by providing positioning protrusions on the pot lid that correspond to positioning grooves on the pot body before closure. These pre-configured positioning features guide the lid into the correct position during placement, ensuring proper alignment and closure on the first try without requiring user adjustment.
Solution Approach 2:
The patent uses positioning protrusions and positioning grooves as intermediary elements between the pot lid and pot body. These intermediaries facilitate the closure operation by providing mechanical guidance and constraint, enabling the lid to be properly positioned and secured during the closing action.
2Measurement precision
If multiple adjustments are required to close the lid properly, then the user can achieve correct positioning, but the operation becomes complex and time-consuming
Solution Approach 1:
The positioning protrusions and grooves are pre-configured on the lid and body respectively, establishing the correct geometric relationship before closure. This preliminary configuration ensures that when the lid is placed on the pot, the positioning features automatically align and constrain the lid to the accurate position, eliminating the need for multiple adjustments and reducing closure time.
Solution Approach 2:
The positioning mechanism operates automatically through the interaction between positioning protrusions and grooves. The system self-corrects and self-aligns during the closure process without requiring user intervention for adjustment, achieving both high positioning accuracy and rapid operation.
3Reliability
If the pot lid locking assembly is added to ensure secure closure, then the reliability of lid closure is improved, but the device complexity increases
Solution Approach 1:
The patent merges the positioning function and locking function into a unified assembly. The positioning protrusions not only guide the lid into correct position but also work with the locking assembly to secure the lid. This integration of multiple functions into coordinated components achieves reliable closure without proportionally increasing overall device complexity.
Solution Approach 2:
The positioning protrusions and grooves serve multiple functions: they guide alignment during placement, maintain precise positioning during closure, and work with the locking assembly to secure the lid. This multi-functionality reduces the need for separate dedicated components for each function, thereby limiting the increase in device complexity while improving reliability.
Data Source
AI summary
A cooking appliance includes a pot lid, a pot body, and a pot lid. The pot lid has an oval cross section with a long axis and a short axis orthogonal to each other. The pot body includes a limiting boss provided at an upper surface of the pot body. The limiting boss is configured to abut against an outer peripheral edge of the pot lid when the pot lid is closed. The pot lid locking assembly is configured to lock the pot lid in a closed state. The pot lid locking assembly includes at least one of a lid locking part disposed at the pot lid or a pot locking part disposed at the pot body.