Adaptive Safety Wall with Decompression Valves
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Solution Overview
Problem
Existing inflatable safety walls have fixed air pressures that do not adapt to varying collision forces, leading to inadequate shock absorption and potential 'trampoline' effects from excessive pressure.
Innovation Solution
Incorporating a decompression valve system between inflatable elements to transfer air beyond predetermined pressure thresholds, allowing pressure variation and additional external air evacuation, along with compartmentalization and stiffening strips for optimal force distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the inflatable elements are inflated to a high predetermined pressure to improve shock absorption capability, then the shock absorption for severe collisions is improved, but the safety wall becomes too hard and induces a trampoline effect for minor collisions
Solution Approach 1:
The safety wall transitions from a static fixed-pressure system to a dynamic adaptive-pressure system. The decompression valves enable the inflatable elements to automatically adjust their internal pressure in real-time based on the magnitude of collision forces detected, allowing the wall to be soft for minor impacts and hard for severe impacts.
Solution Approach 2:
The internal pressure parameter of the inflatable elements is changed from a fixed predetermined value to a variable parameter that automatically adjusts based on collision magnitude. The decompression valves control pressure release to maintain optimal pressure levels, transforming the wall's mechanical properties dynamically.
2Object-affected harmful factors
If the inflatable elements are inflated to a low predetermined pressure to avoid the trampoline effect, then the safety for minor collisions is improved, but the shock absorption becomes insufficient for severe collisions
Solution Approach 1:
The system dynamically adjusts pressure levels rather than maintaining a static low pressure. The decompression valves work in conjunction with the multi-element design to allow pressure buildup for severe collisions while preventing excessive pressure for minor collisions, achieving both softness and hardness as needed.
Solution Approach 2:
The safety wall is divided into multiple inflatable elements (first, second, and optionally third elements) that can independently manage pressure levels. This segmentation allows different zones to handle different collision magnitudes, with air transfer between elements providing additional shock absorption capacity for severe impacts.
3Device complexity
If the safety wall uses a fixed predetermined pressure system to simplify the design, then the device complexity is reduced, but the adaptability to varying collision forces is lost
Solution Approach 1:
The safety wall is equipped with self-regulating decompression valves that automatically control pressure levels without external intervention. The system monitors its own pressure state and releases air when thresholds are exceeded, enabling autonomous adaptation to varying collision forces while maintaining relatively simple valve mechanisms.
Solution Approach 2:
The decompression valves provide negative feedback control by monitoring internal pressure and releasing air when predetermined pressure thresholds are exceeded. This automatic feedback mechanism enables the system to adapt to varying collision forces while maintaining pressure within safe and effective ranges.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The safety wall effectively adapts pressure to collision magnitude, ensuring optimal shock absorption and preventing excessive pressure buildup, thereby improving the safety and effectiveness of collision force management.
Implementation Method 1
said first element communicates with said second element via at least one decompression valve allowing a transfer of the air contained in said first element to said second element beyond a predetermined pressure threshold in said first element
Implementation Method 2
said second element further having at least one external air evacuation valve arranged to allow a transfer of the air contained in said second element to a surrounding medium, beyond a predetermined pressure threshold in said second element
Implementation Method 3
said first element being arranged to be inflated to a first predetermined pressure by means of air and having a collision zone
Implementation Method 4
partially absorb a collision shock with said obstacle
Data Source
Figure 1~2
Figure 3
AI summary
Safety wall intended to be placed in front of at least one obstacle to partially absorb a collision shock with said obstacle, said safety wall comprising a first element (1) having an inlet (3) arranged to be connected to a source of pressurized air, said first element (1) being arranged to be inflated to a first predetermined pressure by means of air and having a collision zone (4), said first element (1) being further connected to a second element (2) arranged to be inflated to a second predetermined pressure by means of air.