External Pivot Fume Extractor Arm for 3D Hood Positioning
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Solution Overview
Problem
Existing adjustable gaseous fluid extractor assemblies often have hoods that are limited to pivoting in a single plane, which can restrict optimal gas extraction and compromise the flexibility and length of the extractor arm arrangement.
Innovation Solution
The adjustable gaseous fluid extractor assembly features a pivot mechanism that allows the first portion to pivot relative to the second portion about both a first and second axis, with the pivot mechanism arranged exterior to the flexible tubing element. This configuration enables three-dimensional adjustment of the hood while maintaining undisturbed gas flow through the tubing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the pivot mechanism is placed inside the flexible tubing, then the structure is compact, but the mechanism is exposed to hot gases and requires heavy heat-resistant materials
Solution Approach 1:
The pivot mechanism is extracted from the interior of the flexible tubing and positioned on the exterior surface. This allows the mechanism to be made from lightweight materials like aluminum or composite matrices instead of heat-resistant materials, significantly reducing weight while maintaining functional compactness through external mounting.
2Adaptability or versatility
If the hood is pivotable about multiple axes, then optimal gas extraction positioning is achieved, but the device complexity increases
Solution Approach 1:
The pivot mechanism provides multi-axis rotation capability, allowing the hood to be positioned in three-dimensional space. This enables optimal extraction positioning by adjusting the hood's orientation along multiple axes (vertical, horizontal, and angular adjustments) without significantly increasing overall device complexity through modular design.
3Length of moving object
If the extractor arm arrangement is made flexible and lengthy, then reach and accessibility are improved, but gas flow resistance increases
Solution Approach 1:
A flexible tubing element is used to connect the pivot mechanism to the extraction arm, allowing the arm to be lengthy and flexible for improved reach and accessibility. The tubing is designed with sufficient internal diameter and smooth interior surfaces to minimize gas flow resistance, maintaining efficient airflow despite the extended flexible configuration.
Data Source
AI summary
An adjustable gaseous fluid extractor assembly including a first portion and a second portion. The assembly further includes a pivot mechanism providing that the first portion is pivotable relative the second portion about a respective first and second axis. The assembly further includes a flexible tubing element coupled to the first portion and to the second portion. The pivot mechanism is arranged exterior the flexible tubing element.