The pressure bearing principle of the safety hat
Release time: 2023-07-05
The helmet can withstand pressure mainly by using three principles:
1. Buffer damping effect: there is a gap of 25~50mm between the hat shell and the hat liner, when the object hits the helmet, the hat shell does not directly affect the top of the head due to force deformation.
2. Dispersive stress effect: the cap shell is elliptical or hemispherical, the surface is smooth, and when the object falls on the cap shell, the object can not stay and slide immediately; Moreover, the force borne by the impact point of the cap shell is transmitted to the surrounding, and the force reduced by the buffer of the cap lining can reach more than 2/3, and the rest of the force is transmitted to the human skull through the entire area of the cap lining, so that the focus point becomes the focus surface, thereby avoiding the stress concentration of the impact force at a certain point on the cap shell and reducing the force per unit area.
3. Biomechanics: The national standard stipulates that the helmet must be able to absorb 4900N. This is because of biological tests, the maximum limit of the human cervical vertebra when it is stressed, exceeding this limit, the cervical vertebra will be injured, the light cause paralysis, and the serious endanger life.
The harm of low quality and low price helmet:
Some low-quality and low-cost helmets are just a facade, and can not play a protective role. In the choice of materials, the design of the lining simply cannot meet the requirements of the national standard, and when it receives the impact, it can not produce deformation and disperse stress in time. If you choose these products, once there is an accident at work, it will cause great damage to the user's head, causing concussion in the light, and life-threatening in the serious.
Keywords: Pressure bearing principle of safety helmets
Our products are well-designed, comfortable to wear and durable. The quality of products is stable, and the variety is rich and diverse. Some products have passed the test, and they meet the EU CE standards and American ANSI standards, and have obtained certification certificates.
Jiyuan City Jinxing Mining Rubber Plastics Co., Ltd.
Service hotline: +86-4008866091
Email:jinxingfanghu2024@163.com
COPYRIGHT 2023 Jiyuan City Jinxing Mining Rubber Plastics Co.,Ltd This website supports ipv6
