Modular Accessible Passageway with Snap-Fit Assembly and Adjustable Gradients
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Solution Overview
Problem
Conventional accessible passageways are inflexible and unable to adjust to different locations or user conditions, lacking stability and safety, especially in temporary setups like outdoor exhibitions or large gatherings.
Innovation Solution
A snap-fit assembly of components such as railing units, columns, and slope guide plates with movable pivots allows for adjustable gradients and shapes (U-shape, L-shape, linear) using high-strength aluminum alloy materials, ensuring safe and stable access for individuals with mobility issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional fixed passageways are used, then stability is ensured, but flexibility and adaptability are lost
Solution Approach 1:
The passageway is divided into modular components (railing units, columns, step plates, slope guide plates) that can be independently assembled and configured. Each component is a discrete unit with standardized connection interfaces, enabling flexible arrangement while maintaining structural integrity through proven connection mechanisms.
Solution Approach 2:
The connection parts between railing units and columns incorporate movable pivots that allow gradient adjustment from 0° to 13°. This dynamic adjustment capability enables the passageway to adapt to different terrain conditions and user needs while maintaining stability through controlled mechanical connections.
2Adaptability or versatility
If temporary passageways are constructed through assembly of plates, then flexibility is improved, but stability and safety deteriorate
Solution Approach 1:
The connection parts feature arc-shaped recesses and convex portions that enable rotational movement and gradient adjustment. This curved geometry provides smooth angular adjustment while maintaining secure mechanical engagement, ensuring safety during gradient changes.
Solution Approach 2:
The passageway components are designed with adjustable parameters including gradient (0°-13°), shape (U-shape, L-shape, linear), and configuration. These parameter changes are achieved through controlled mechanical adjustments rather than arbitrary plate assembly, maintaining reliability while providing flexibility.
3Stability of the object's composition
If fixed passageways are laid with cement and stone, then stability is achieved, but ease of manufacture and assembly deteriorate
Solution Approach 1:
The passageway is segmented into pre-fabricated modular components that can be manufactured separately and assembled on-site through snap-fit connections. This eliminates the need for cement and stone laying, dramatically improving ease of assembly while maintaining stability through engineered connections.
Solution Approach 2:
The components are designed with self-aligning and self-locking features that enable easy assembly without specialized tools or expertise. The snap-fit connections and movable pivots allow individuals to assemble and adjust the passageway independently, improving ease of manufacture and assembly.
4Ease of operation
If snap-fit assembly is used, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The modular components feature standardized connection interfaces that serve multiple functions: structural support, gradient adjustment, and shape configuration. This universality reduces the number of different component types needed, simplifying the overall system despite the snap-fit assembly mechanism.
Data Source
AI summary
An accessible passageway assembly is assembled by a plurality of railing units, a plurality of columns, a plurality of step plates and slope guide plates; specifically, the plurality of railing units are spaced by columns to form inner fences and outer fences of the passageway. A support bar is positioned between the lower end of columns of the inner fences and the lower end of columns of the outer fences. A platen is disposed above the support bar. The rear and front end of the support bar and the platen include an extending tongue piece respectively for fast snap-fit of the step plate and the slope guide plate of the passageway. The connection part of the railing unit and the column can be a movable hinge, such that the angle of the railing unit can be adjusted according to the passageway height difference and change, such that the accessible passageway can be quickly assembled and disassembled indoors or outdoors.