At this time, the helmet came in handy. As the most vulnerable part of the human body, the head is actually the most deadly place when it happens, so it is very necessary to give the helmet to the sanitation workers. However, because some people are biased against their work and think that sanitation workers are disgraceful in sweeping the road, they will not respect sanitation workers. But work is not 369, everyone deserves respect. If there are no sanitation workers, how can there be such a clean and tidy street on the road? Moreover, it is precisely because of the existence of sanitation workers that we have such a beautiful urban environment, all of which are attributed to sanitation workers.
The helmet plays an important role in protecting the human head. In the event of an accident, the impact force can be dispersed to all points instead of concentrated in one place, thus reducing the damage to the human body caused by the accident. The helmet can absorb 4900N according to the regulations, because scientists have found that this is the maximum stress value of the human spine, and exceeding this value will endanger people's life and health. When the helmet is designed into a semicircle, the object will not stay on the head, but slide down directly, which can play a role in relieving.