Introduction of safety helmet

Safety helmet is a shallow dome made of steel or similar materials to protect the head, and it is a protective article to prevent the head from being injured by an impact object. Consists of a cap shell, a cap liner, a lower cheek strap and a back hoop. The cap shell is hemispherical, firm, smooth and elastic, and the impact and puncture kinetic energy of hitting objects are mainly borne by the cap shell. There is a certain space between the cap shell and the cap lining, which can buffer and disperse the instantaneous impact force, thus avoiding or reducing the direct injury to the head. Impact absorption, puncture resistance, lateral rigidity, electrical insulation and flame retardancy are the requirements for the basic technical performance of safety helmet.