Helmet Inner Buffering Structure with Detachable Air Bladder
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Solution Overview
Problem
Traditional helmets lack effective buffering against direct hard collisions and often suffer from poor air permeability and hygiene issues, especially in shared use scenarios.
Innovation Solution
A helmet design featuring double layers of air bladders with ventilation openings, a detachable inner-layer air bladder for private use, and a reusable outer-layer air bladder for public use, along with a hook-and-loop fastener and adjustable air valves for enhanced fit and hygiene.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional helmets use a hard shell with flexible lining directly fixed inside, then head protection from sliding damage is achieved, but buffering against direct hard collision is insufficient and air permeability is poor
Solution Approach 1:
The air bladder system is segmented into an inner-layer air bladder and an outer-layer air bladder, with each layer having distinct functions. The outer-layer provides primary buffering against direct hard collision, while the inner-layer provides additional buffering and comfort contact with the user's head. This segmentation allows each layer to be optimized for its specific function, improving overall buffering effectiveness without excessive complexity.
Solution Approach 2:
The inner-layer air bladder is nested within the outer-layer air bladder, creating a multi-layered buffering system. The inner-layer fits closely to the user's head while the outer-layer provides additional protection and structural support. This nesting arrangement maximizes the buffering effect within the available space while maintaining a relatively simple overall structure.
2Reliability
If traditional helmets use non-removable linings, then structural simplicity is maintained, but hygiene issues arise in shared use scenarios
Solution Approach 1:
The air bladder system is divided into removable inner-layer and fixed outer-layer components. The inner-layer air bladder can be easily removed and cleaned by the user, while the outer-layer remains fixed to the helmet shell. This segmentation enables hygienic maintenance in shared use scenarios without complicating the overall structure or usage.
Solution Approach 2:
The inner-layer air bladder is extracted as a removable component from the helmet system, allowing users to take it out for cleaning or replacement. This extraction enables hygienic maintenance while the outer-layer air bladder remains fixed to provide continuous protection. The removable design addresses hygiene concerns in shared helmets without significantly impacting ease of operation.
3Ease of operation
If air bladders are equipped without ventilation openings, then structural integrity is maintained, but air permeability is poor causing stuffiness
Solution Approach 1:
Ventilation openings are incorporated into both the inner-layer and outer-layer air bladders, creating a porous structure that allows air to pass through. These openings enable air circulation to prevent stuffiness while the air bladder material itself maintains its integrity and buffering function. The porous design balances breathability with structural reliability.
4Strength
If the inner-layer air bladder is made thick for better buffering, then protection is improved, but comfort and air permeability are reduced
Solution Approach 1:
The buffering function is segmented between two layers: the outer-layer air bladder provides the primary thick buffering against direct hard collision, while the inner-layer air bladder is thinner to ensure comfort and close fit to the user's head. This segmentation allows each layer to be optimized for its specific function - protection versus comfort - without compromising either.
Solution Approach 2:
Different thicknesses are applied to different layers based on their specific functions. The outer-layer air bladder is made thicker to provide robust buffering against external impacts, while the inner-layer air bladder is made thinner to ensure comfort and close contact with the user's head. This local differentiation of quality optimizes both protection and comfort.
Data Source
AI summary
An inner buffering structure of a helmet comprising an air bladder, wherein the air bladder comprises a detachable inner-layer air bladder and an outer-layer air bladder, and the inner-layer air bladder is used for being in contact with a user's head; a plurality of ventilation openings is formed in the inner-layer air bladder and the outer-layer air bladder; the portions where the inner-layer air bladder and the outer-layer air bladder correspond to the ventilation openings are provided with inner convex edges extending towards the interior of the ventilation openings; a first air valve is arranged on the inner-layer air bladder, a second air valve is arranged on the outer-layer air bladder, and a reserved hole allowing the first air valve to pass through is formed in the outer-layer air bladder.