Telescopic Ventilation Arm Glide Sleeve for Precise Positioning
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Solution Overview
Problem
Existing ventilation systems face challenges in achieving precise placement of the extraction mouthpiece due to the complexity of multiple components and joints with multiple degrees of freedom, leading to imprecise movement towards or away from the source of contamination.
Innovation Solution
A ventilation arm with a telescopic arrangement of tubular elements connected via a glide sleeve and joint constructions, allowing for precise pivoting and adjustment, utilizing a glide sleeve with adjustable tension and a flexible glide control to enhance precision and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple components and joints with multiple degrees of freedom are used to form the ventilation arm, then the adaptability and range of motion are improved, but the manufacturing precision and placement precision deteriorate
Solution Approach 1:
The ventilation arm is divided into multiple telescopic segments that can move independently along the arm's length. Each segment is controlled by its own actuator, allowing precise positioning of the extraction mouthpiece while maintaining overall adaptability. The segmentation enables independent control of each section, improving placement precision without sacrificing range of motion.
Solution Approach 2:
The joint constructions are designed with dynamic locking mechanisms that can transition between locked and unlocked states. When a precise position is reached, the locking mechanism engages to maintain that position with high precision. The dynamic nature allows the system to achieve both adaptability during movement and precision when positioned.
2Adaptability or versatility
If multiple components are connected to form the ventilation arm, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
Multiple functions are merged into integrated joint constructions that combine telescopic movement, pivoting, and locking capabilities in single assemblies. The glide sleeve integrates both telescopic adjustment and positioning functions, reducing the number of separate components needed while maintaining full adaptability.
Solution Approach 2:
The joint constructions are designed as universal connectors that can perform multiple functions: telescopic extension, angular pivoting, and position locking. This multi-functionality reduces the overall component count while preserving the ventilation arm's adaptability and range of motion.
3Manufacturing precision
If telescopic movement is enabled through sleeve and locking mechanisms, then the placement precision is improved, but the device complexity increases
Solution Approach 1:
The telescopic mechanism uses nested tubular elements where inner tubes slide within outer tubes, with glide sleeves nested within the telescopic sections. This nested arrangement achieves precise telescopic movement while compacting the mechanism space, reducing overall complexity compared to extended mechanisms.
Solution Approach 2:
Glide sleeves are introduced as intermediary elements between the telescopic tubes and locking mechanisms. These glide sleeves facilitate smooth movement and precise positioning while simplifying the interaction between moving parts, reducing the complexity of the overall telescopic system.
Data Source
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AI summary
This invention concerns an arrangement (3) that is comprised as a component (4.2) of an airtransport channel where the air-transport channel component (4.2) comprises two tubular sub-elements, a first sub-element (7) and a second sub-element (8), where the second element (8) has a diameter that is somewhat larger than that of the first element (7), which allows the first element (7) to be inserted into the second element (8) such that the two elements (7, 8) can be displaced relative to each other in a telescopic manner. The arrangement (3) is characterised in that it comprises a glide sleeve (11) that is arranged between the first element (7) and the second element (8), that the glide sleeve (11) comprises a first part (12) that retains the glide sleeve (11) at the second element (8), that the glide sleeve (11) comprises a second part (13) that makes contact with the first element (7) under a force (F) that can be adjusted and that is united with the first part (12), and that all parts of the second part (13) are located in front of the first end (8.1) of the second element. The invention concerns also a ventilation arm (2) and a ventilation system (1).