How do riding helmets protect our heads?

Current cycling Helmet There are many kinds of fake and inferior products, so how should we choose a safe and reliable helmet?

The main principle of the helmet is to resist part of the impact through the external hard shell, and maintain the approximate shape of the helmet, so as to prevent the head from directly contacting the ground for impact. At the same time, its internal cushioning material absorbs most of the impact energy through extrusion deformation, or even cracking, making the rider's head stop relatively slowly to reduce the impact force reaching the head, thus protecting the rider's head from injury. From the operating principle of the riding helmet, we can easily see that a riding helmet with sufficient safety protection performance is not "unbreakable", and even needs to "actively break" in some cases.

The helmet is mainly composed of a shell, an internal buffer material, and a regulating and fixing device.

Shell: The outermost hard shell of a helmet. In case of accidental collision, the shell is the first line of defense to protect the head, which is used to disperse the impact. The main material is ABS plastic. The mountain bike helmet also uses glass fiber, carbon fiber materials and other materials.

Internal cushioning material:

Helmet The foam buffer material inside is the second line of defense to protect the head and absorb most of the impact force. Most helmets are made of a single foam buffer material. Some helmets use foam materials of different densities for protection. For example, the riding helmets of Luckysonics use EPS and EPP materials.