Barbecue Stove Coal Tray Elevator for Consistent Flame Control
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Solution Overview
Problem
Existing coal-based barbecue stoves suffer from inconsistent food quality due to varying flame intensity, leading to overcooked or undercooked food, and previous solutions with adjustable food trays are complex and costly.
Innovation Solution
A barbecue stove design featuring a coal tray elevator with cranks and a handle system that allows for adjustable elevation of the coal tray relative to the food tray, enabling precise control over flame exposure and cooking conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the food tray elevation is adjusted relative to the coal tray to accommodate varying flame intensity, then food cooking quality can be improved, but the device structure becomes complicated and costs increase
Solution Approach 1:
Instead of adjusting the food tray elevation as in prior art, this patent inverts the approach by adjusting the coal tray elevation relative to the fixed food tray. The coal tray is made movable through a crank mechanism while the food tray remains stationary, achieving the same flame intensity control objective with simpler structure.
Solution Approach 2:
The patent extracts the adjustment mechanism from the food tray side and relocates it to the coal tray side. By removing the complexity of adjusting the food tray and instead providing a crank mechanism for the coal tray, the solution achieves elevation adjustment functionality with reduced structural complexity.
2Manufacturing precision
If the coal tray elevation is adjusted to control flame intensity, then consistent food cooking quality can be achieved, but the mechanism complexity increases
Solution Approach 1:
The crank mechanism is designed to be manually operated by the user, eliminating the need for motors, sensors, or automated control systems. The user directly controls the coal tray elevation by turning the crank, achieving precise flame intensity control through simple manual operation.
Solution Approach 2:
The crank acts as an intermediary mechanism that converts rotational motion into linear motion for elevating the coal tray. This simple mechanical intermediary provides smooth, controlled elevation adjustment without requiring complex electronic or automated systems.
3Device complexity
If a fixed coal tray design is used, then the device structure remains simple, but food cooking quality becomes inconsistent due to varying flame intensity
Solution Approach 1:
The patent transitions from a static coal tray design to a dynamic one by introducing a movable coal tray with crank-based elevation adjustment. This allows the system to adapt to varying cooking requirements and flame intensity conditions, significantly improving food cooking quality consistency.
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
This solution ensures consistent food quality by allowing for tailored cooking based on flame intensity, reducing the risk of overcooking or undercooking, while being more cost-effective and simpler in design compared to prior solutions.
Implementation Method 1
The elevator includes two cranks positioned beneath the coal tray in the bowl and a handle for rotating the cranks, thus adjusting the elevation of the coal tray
Implementation Method 2
the flame due to the combustion of coal on the coal tray
Data Source
AI summary
A barbecue stove includes a bowl for installment on the ground, a food tray for supporting food, a coal tray for supporting coal and an elevator for adjusting the elevation of the coal tray. The food tray is installed on the bowl. The coal tray is positioned in the bowl below the food tray. The elevator is provided between the coal tray and the bowl.