Lifting Cover Hinge Structure for Cleaner Frying-Roasting Access
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electrical frying-roasting devices are inconvenient to use and difficult to clean due to the need for a space to accommodate the upper cover during cooking and the spattering of hot oil onto the wall behind the device.
Innovation Solution
A lifting-cover frying-roasting device with a jointed shaft mechanism allows the upper cover to be lifted and separated from the bottom base for easy cleaning, featuring r-shaped orbits and blocking walls to prevent oil splatters from reaching the wall, and a hinged connection that slopes the cover for efficient food handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the upper cover is removed and placed aside during cooking, then the cover can be accessed for flipping food, but additional space is required and convenience is reduced
Solution Approach 1:
Instead of removing the cover completely to access it, the patent inverts the approach by allowing the cover to remain connected but inverted (flipped open) using a hinge mechanism. The cover can be rotated 180 degrees from its closed position to an open position where it rests on the rear support, providing access while utilizing the existing cover structure as the support surface.
Solution Approach 2:
The patent introduces a hinge connection between the cover and bottom base, transforming the static cover into a dynamic component that can rotate between closed and open positions. This dynamic mechanism allows the cover to move from a fixed covering position to an accessible open position without requiring external space.
2Ease of manufacture
If the upper cover is fixed to the bottom base, then the device structure is simple, but the cover cannot be separated for cleaning
Solution Approach 1:
The patent segments the cover assembly into separable components: the cover body, the hinge connection, and the support structure. The hinge connection acts as a detachable joint that allows the cover to be separated from the bottom base for cleaning while maintaining structural simplicity when assembled. The cover can be easily detached by reversing the hinge connection assembly process.
3Ease of operation
If the cover is positioned horizontally when open, then food handling is convenient, but oil splatters onto the wall behind the device
Solution Approach 1:
The patent changes the spatial dimension of the open cover position by introducing a rear support that allows the cover to rest at an elevated angle rather than horizontally. The cover is supported in a tilted position where its rear edge rests on the support, creating a three-dimensional configuration that redirects oil splatter away from the wall while maintaining food accessibility.
Solution Approach 2:
The rear support acts as an intermediary element between the cover and the wall. Instead of the cover resting directly on the wall or horizontal surface, the support mediates the position, elevating the cover rear edge to create a slope that prevents oil from reaching the wall while still allowing convenient food handling.
Data Source
AI summary
A frying-roasting device comprises a bottom base, an oil storing plate, an electric heating frying-roasting plate and an upper cover. There are bosses extending backwards at two sides of a back end of the bottom base. R-shaped orbits are included that have openings from the bosses' back end that extend toward the bosses' front lower parts. Jointed shafts extend outward at a back end of two sides of the upper cover. The jointed shafts are inserted in the r-shaped orbits to form a hinging connection. There are two blocking walls that extend from a back end to an inside of each boss. The height of the two blocking walls is lower than openings of the r-shaped orbits. When the upper cover is opened, the back connecting member is blocked by the frying-roasting plate and the two blocking walls so that the upper cover remains sloped.