Cooking device, and drainage device on cooking device
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Solution Overview
Problem
Existing cooking appliances with drainage systems suffer from seal wear and leakage due to high temperatures causing encrustation, leading to functional failures and increased maintenance costs, especially during grilling and preheating processes.
Innovation Solution
A cooking appliance with a linearly displaceable plunger that executes a rotational movement to gently separate the seal from the drainage surface, maintaining sealing properties and extending the seal's lifespan by converting drive rotation into linear movement of the drain plug, allowing for coaxial and linear movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the drainage plug moves linearly to close the drain opening, then the drainage function is achieved, but the seal experiences rapid wear due to encrustation from high temperature
Solution Approach 1:
Instead of moving the seal linearly along the drain opening axis, the invention inverts the approach by rotating the seal around the axis while maintaining axial positioning. This rotational movement prevents encrustation buildup and reduces frictional wear, thereby extending seal service life while maintaining drainage functionality
Solution Approach 2:
The invention transforms the static linear sealing mechanism into a dynamic rotational system. The seal is coupled to a rotating element that spins during operation, creating dynamic separation from the drain opening surface and preventing the encrustation that occurs with static linear movement
2Reliability
If the seal rests on the conical drainage surface, then the drainage opening is sealed, but high temperature causes encrustation leading to rapid wear
Solution Approach 1:
Instead of having the seal statically rest on the conical surface, the invention rotates the seal around the cone axis. This rotational motion prevents the seal from adhering to the hot surface, eliminating encrustation formation while maintaining the sealing function through periodic contact
Solution Approach 2:
The rotational movement creates a vibration-like effect between the seal and the conical drainage surface, preventing encrustation buildup by continuously disrupting the contact interface and reducing thermal adhesion
3Ease of operation
If the drain plug executes linear movement, then the drainage opening is opened or closed, but friction and encrustation cause rapid seal wear
Solution Approach 1:
The invention inverts the movement paradigm from linear translation to rotational motion. The seal rotates around the drain opening axis rather than moving linearly, which maintains ease of drainage operation while dramatically reducing frictional wear and encrustation-related degradation
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Significantly increases the service life of the seal and reduces design and manufacturing costs while maintaining the appliance's functionality and reducing leakage issues.
Implementation Method 1
a linearly displaceable plunger (11), which, at least in the closure area, executes a rotational movement that is transmitted to the drainage plug seal (18) via the drain plug (10)
Implementation Method 2
The prerequisite for maintaining the sealing properties of the coaxial / linear movement of the plunger with the drainage plug and the rotation of the plunger are achieved by the drive mechanism according to the invention. This mechanism converts the drive rotation movement into the linear movement of the plunger with the drain plug
Implementation Method 3
the separation of the seal, which is encrusted with the drainage surface, is gentle and has a positive effect on the service life of the seal. As a result, the separation of the seal, which is encrusted with the drainage surface, is gentle and has a positive effect on the service life of the seal and thus also on the duration of the functionality of an overpressure device
Data Source
Figure 1
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AI summary
The invention relates to a cooking appliance (1) consisting of a trough-like container, preferably a pan (2), for holding and cooking food, having the base area (3) with adjoining walls (4) and an open area opposite the base area (3). Side (5), which can be closed by a cover (6), with a drain opening (7) being located in the bottom area (3), which can be moved parallel to the drain opening (7) and parallel to the drain pipe axis (9) by a drain plug (10) can be closed in a controlled manner, the drain plug (10) being actuated by a plunger (11) and this being coupled to a device (13) for rotating the drain plug (10) about the drain plug axis (9).