Fire pit conversion ring and method
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Solution Overview
Problem
Existing double-walled fire pits cannot be used independently of block fire pit rings, limiting their portability and versatility.
Innovation Solution
A conversion ring that allows a portable, stand-alone fire pit to be used both independently and as a fire pit insert within a block fire pit ring, featuring locking mechanisms to prevent relative rotation and interlock with the fire pit and block ring, enabling seamless installation and removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If locking mechanisms are added to prevent rotation, then stability is improved, but device complexity increases
Solution Approach 1:
The locking mechanism utilizes asymmetric geometry where locking fingers on the conversion ring engage with corresponding asymmetric features on the fire pit and block ring. This asymmetric design provides automatic rotational locking through simple geometric interlocking without requiring complex active locking components, motors, or control systems.
Solution Approach 2:
The locking mechanism operates through self-service geometric interlocking where the asymmetric features of the conversion ring, fire pit, and block ring automatically engage to prevent rotation. The system locks itself through its own structural geometry without requiring external power sources, control systems, or complex actuating mechanisms.
Data Source
AI summary
A conversion ring for a portable fire pit allows the portable fire pit to be used within a block fire pit ring. If desired, the owner can remove the fire pit from the conversion ring and the block ring and use it in different locations. The conversion ring and the fire pit can lock together to limit rotational movement after installation. The conversion ring includes locking fingers that cooperate with elements of the fire pit. In one configuration, the locking fingers of the conversion ring cooperate with the legs of the fire pit when the fire pit is installed through the conversion ring.