Campfire Rod-and-Loop Structure for Chimney Draft Cooking
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Solution Overview
Problem
Existing camp fire aid systems fail to efficiently support logs for a chimney effect and provide a safe, convenient, and economical cooking surface over campfire flames.
Innovation Solution
A camp fire aid system comprising 7-shaped rods with acute angles, a large circular loop welded to the lower ends, and a small circular loop positioned at the acute angles, creating a frusto-conical chamber for air draft and a support surface for cooking, fabricated from steel for durability and low cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional fire aid systems are used, then logs can be supported for burning, but they fail to create an efficient chimney effect and provide safe cooking surfaces
Solution Approach 1:
The fire aid system is designed to perform multiple functions: supporting logs for burning, creating a chimney effect for efficient combustion, and providing a stable cooking surface. The structure includes both a lower support portion for logs and an upper support portion for cooking equipment, allowing one device to fulfill multiple purposes that traditionally required separate tools
Solution Approach 2:
The system transitions from ground-level burning to elevated burning by positioning the fire structure above ground level. This vertical elevation serves two purposes: it creates the chimney effect by positioning the fire at a height that allows hot air and smoke to rise naturally, and it provides a stable platform for cooking equipment that is safely elevated from the ground
2Ease of manufacture
If simple log support structures are used, then construction is easy, but they cannot create effective air draft for chimney effect
Solution Approach 1:
The support rods are positioned asymmetrically around the central axis, with three rods arranged in a triangular pattern. This asymmetric arrangement creates natural air channels and pathways for air flow, facilitating the chimney effect without requiring complex mechanical draft systems. The asymmetric geometry allows air to enter from multiple directions and flow upward through the fire chamber
3Object-affected harmful factors
If elevated cooking surfaces are provided, then safety is improved, but device complexity increases
Solution Approach 1:
The upper support portion serves dual purposes: it acts as a safety barrier that elevates the cooking surface away from ground-level hazards, and simultaneously provides the structural framework for supporting cooking equipment. The same elevated structure that ensures safety also serves as the mounting system, eliminating the need for separate support mechanisms
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
Facilitates efficient burning of logs for a chimney effect and provides a safe, convenient, and economical cooking surface over campfire flames, ensuring effective heat generation for cooking while being durable and cost-effective.
Implementation Method 1
creating a frusto-conical chamber for air draft and a support surface for cooking
Implementation Method 2
efficient burning of logs for a chimney effect and provides a safe, convenient, and economical cooking surface over campfire flames, ensuring effective heat generation for cooking
Data Source
AI summary
Each of a plurality of 7-shaped rods has a short leg above and a long leg below with an acute angle between the short leg and the long leg. A circular large loop is positionable in a first plane in contact with and welded to the lower ends the rods. A circular small loop is positionable in a second plane parallel with the first plane. The small loop is coupled to the rods adjacent to the acute angles. An axis extends through the centers of the loops.