2014年1月23日星期四

Fire helmet at all times and the evolution of

    Earlier HENGDA fire helmet is copper helmet . Its main function is to prevent brain bruise . 1800 in Berlin, Germany City firefighter wearing helmet atop the copper cone is pointed , you can fall in the above object distribution side . 50 years after the Paris firefighters helmet has a convex curved top bar empty room above objects can fall from decompression vent force, this helmet a great impact on the world. Firefighter helmet raised on China Palace train , also plays the same role that it had prevailed in the Qing Dynasty 200 years .
    19th century French also produced a helmet , body inside with leather lining made ​​of heavy falling dampening effect , lightweight helmet helmet than copper , but not as bright copper helmet , identifying poor performance in the field of fire .
    Later, in Berlin, Germany with a non-combustible fire brigade helmet plus fabric to edge after a software block above the combustion fall , let it fall into the firefighter 's neck, which has a trailing edge of the helmet by the Japanese Fire widely adoption.
    The United States is manufactured using fiberglass fire helmet , low cost , lightweight, have a variety of colors . U.S. fire brigade helmet with a white body color , red or yellow cap badge to identify good effect .
    With the development of firefighting practice needs and science and technology, more and more modern fire helmet , with a variety of functions , not only to protect the head, cephalic protection , higher strength , better impact resistance , but also lightweight and breathable. Timber mostly fiberglass -based, pay more attention to the bright color . Some also additional decorations, such as team logo , team numbers , and even additional light-emitting element . Some positions are still ear sound transmission components or additional ventilation devices.
    Interestingly, foreign fire dogs are wearing helmets when entering the scene to ensure the safety or identified ....

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