Components of a safety helmet

A safety helmet is a hat that protects the head from injuries caused by falling objects and other specific factors. A safety helmet consists of a shell, a lining, a chin strap and accessories.

Shell:

Description: The shell is the main component of a safety helmet, and it usually adopts an elliptical or hemispherical thin shell structure.

Function: Under impact pressure, the shell will produce a certain pressure deformation, and absorb and disperse the force through the rigidity of the material. Its smooth surface and circular curve design make it easy for the impact object to slide away, thereby reducing the impact time.

Type: According to needs and to enhance the strength of the shell, the shell can be made into a variety of types such as a smooth top, top ribs, with edges and without edges.

Lining:

Description: The lining is the part of the shell that directly contacts the top of the wearer's head. It consists of multiple components, such as a hat hoop, a top strap, a protective strap, a support strap, a sweat-absorbing belt, a padding and a tether.

Function: The materials of the lining are diverse, including cotton webbing, synthetic fiber straps and plastic lining straps. The hat hoop is a ring-shaped band that surrounds the head when worn. The forehead part is lined with sweat-absorbing material, which has a certain sweat-absorbing effect. The hat hoop ring band is divided into fixed band and adjustable band, and can be divided into two types: with a back neck hoop and without a back neck hoop.

Chin strap:

Description: The chin strap is a strap tied on the chin, used to fix the helmet.

Composition: The chin strap consists of a strap and a locking card. In the hat lining without a back neck hoop, a "y"-shaped chin strap is often used.

Other accessories:

The helmet may also contain other accessories, such as ventilation holes, lining strap holes and chin strap hangers, etc. These accessories vary according to the specific design and purpose.

Summary: The components of the helmet are mainly the shell, the hat lining and the chin strap, each of which has different functions and roles to ensure that the wearer's head is fully protected when it is impacted by external forces. The shell is responsible for absorbing and dissipating impact, the lining provides comfort and sweat absorption, and the chin strap ensures the stable wearing of the helmet.