Helmet Dustproof Assembly with Intermediary Covers
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Solution Overview
Problem
Mineral ash enters miners' helmets during excavation, leading to respiratory diseases due to the lack of effective dustproof solutions in existing mining technologies.
Innovation Solution
A dustproof assembly for helmets comprising a mask, fastening buckles, dustproof covers, and a fitting system that reduces mineral ash entry through the junctions between the mask and helmet, utilizing a combination of detachable connections and fitting notches and protrusions to prevent ash infiltration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a mask is detachably connected to the helmet through fastening buckles, then the mask can be easily installed and removed, but mineral ash can still enter through the junction gaps between the mask and helmet
Solution Approach 1:
A dustproof cover is introduced as an intermediary component between the mask and the helmet. The dustproof cover includes a first dustproof portion that contacts the mask and a second dustproof portion that contacts the helmet, forming a sealed barrier that prevents mineral ash from entering through the junction gaps while maintaining the detachable connection functionality.
Solution Approach 2:
The dustproof cover is constructed as a flexible shell component that can adapt to the junction between the mask and helmet. The flexible material allows the dustproof cover to conform to the mating surfaces while maintaining a sealed structure that prevents ash infiltration through the connection interface.
2Device complexity
If the dustproof cover is made detachable to facilitate maintenance, then the structure becomes simpler, but the sealing effectiveness may be reduced
Solution Approach 1:
The dustproof cover is segmented into distinct portions: a first dustproof portion that interfaces with the mask and a second dustproof portion that interfaces with the helmet. This segmentation allows each portion to be optimized for its specific function while maintaining overall detachability for maintenance purposes.
Solution Approach 2:
The dustproof cover is pre-formed with specific geometric features including protrusions and corresponding recesses that ensure proper alignment and sealing when assembled. The preliminary formation of these sealing features ensures that when the dustproof cover is installed, it automatically achieves effective sealing without requiring additional adjustment or complex assembly steps.
Data Source
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AI summary
The present invention relates to the field of mining technologies, and more particularly, to a helmet and a dustproof assembly thereof. The dustproof assembly includes a mask, a first fastening buckle, a second fastening buckle, a first dustproof cover, and a second dustproof cover; the first fastening buckle and the second fastening buckle are located at side edges of a window respectively and are disposed on both sides of the helmet respectively; each of both ends of the mask is provided with at least one fixing hole; a latch is detachably disposed in the fixing holes respectively; the mask is detachably connected to the first fastening buckle and the second fastening buckle through the latches respectively, so that the mask is movably or detachably disposed on the surface of the window of the helmet; a first clamping buckle and a second clamping buckle are also disposed on the side edge of the helmet respectively; the first dustproof cover and the second dustproof cover are detachably disposed on the first clamping buckle and the second clamping buckle respectively; and when the first dustproof cover and the second dustproof cover are detectably disposed on the first clamping buckle and the second clamping buckle respectively, the first dustproof cover and the second dustproof cover are in contact and connection with both ends of the mask respectively. Therefore, mineral ash entering the helmet is reduced.