Boarding Bridge Outer Tunnel Deck Step Difference Reduction
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Solution Overview
Problem
Conventional boarding bridges have a complex structure with many components, leading to high maintenance and repair challenges, increased failure rates, and unsuitable stiffness for handling multiple passengers, particularly due to a large step difference between inner and outer tunnels that poses safety risks and convenience issues for passengers.
Innovation Solution
A boarding bridge design with an outer tunnel walking deck that can be moved relative to the inner tunnel walking deck to minimize step differences, featuring a simple structure with fewer components, high stiffness, and easy maintenance, where the outer tunnel walking deck is provided above the outer tunnel floor and the inner tunnel walking deck is above the inner tunnel floor, allowing for gentle gradients and safe passage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a variable-length passage with partition plates is used to eliminate step difference, then the step difference between inner and outer tunnels is reduced, but the device complexity increases due to multiple components including partition plates, supporting parts, chains, and sprockets
Solution Approach 1:
The invention extracts and eliminates the unnecessary partition plates from the walking passage structure. By removing these partition plates that created complexity in conventional designs, the patent achieves a simplified single-body structure while still effectively reducing the step difference between inner and outer tunnels through the variable-length passage mechanism alone.
Solution Approach 2:
The invention merges the partition plates and supporting structures into a single integrated walking passage body. This consolidation of multiple separate components into one unified structure reduces device complexity while maintaining the functionality of eliminating step difference between tunnels.
2Object-affected harmful factors
If multiple components are used to eliminate step difference, then the step difference is reduced, but the reliability decreases due to increased failure rate and maintenance difficulty
Solution Approach 1:
The invention removes multiple separate components (partition plates, supporting parts, chains, sprockets) that were sources of potential failures. By extracting these individual components and replacing them with a simplified single-body structure, the patent reduces the overall failure rate and improves reliability while still achieving step difference elimination.
3Adaptability or versatility
If partition plates are used in the variable-length passage, then the passage can be adjusted in length, but the manufacturing precision and stiffness are reduced making it unsuitable for multiple passengers
Solution Approach 1:
The invention combines multiple partition plates into a single integrated walking passage body with high manufacturing precision. This unified structure provides the necessary stiffness to support multiple passengers simultaneously while maintaining the adaptability of variable-length adjustment through the passage mechanism.
Data Source
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AI summary
A boarding bridge comprising: an inner tunnel walking deck which is provided above a floor of an inner tunnel with a space the therebetween, and forms a walking passage of the inner tunnel; and an outer tunnel walking deck which is provided above a floor of the outer tunnel with a space therebetween, and forms a walking passage of the outer tunnel. The outer tunnel walking deck is provided at a height between the floor of the inner tunnel and the inner tunnel walking deck.