Double-layer mask protective helmet and manufacturing method thereof
A mask and helmet technology, applied in the field of double-layer mask protective helmet and its production, can solve the problem that gas masks and protective masks cannot be used at the same time, so as to facilitate adjustment of head circumference and wearing depth, enhance protective performance, and improve light transmittance. high effect
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[0042] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0043] refer to Figure 1 to Figure 4 As shown, a protective helmet with a double-layer mask includes: a helmet shell, a cushioning layer, a liner, a face shield and a neck guard;
[0044] Further, the helmet shell comprises: an outer shell 1 and an inner shell 9 bonded together by an adhesive;
[0045] The outer casing 1 is injection molded by an injection molding machine using a PC / ABS alloy material;
[0046] The inner casing 9 adopts multi-layer impregnated PE non-weft cloth or PE woven cloth, and is molded;
[0047] As an example, PE non-woven fabric and ultra-high molecular weight polyethylene fiber, also known as high-strength and high-modulus polyethylene fiber, are the fibers with the highest specific strength and specific modulus in the world; PE non-woven fabric or woven fabric has high specific strength , high specific modulus,...
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