Content reference: Summary of a 10,000-word long article: How to match a King Kong helmet that suits you?
Can hard hats be a substitute for helmets?
Some people think that hard hats, especially some half-helmet hard hats, seem to be able to play a protective role, but there is actually a big difference between hard hats and safety helmets. Hard hats mainly protect the top of the head, generally for damage caused by falling objects from high altitudes. Helmets have protective functions for the top, front, and sides of the head. Wang Weijie, a professor said that helmets can reduce the sudden deceleration of the skull. Some soft materials in the helmet can absorb part of the impact force. The helmet spreads the external impact force to a larger surface area so that the impact force will not be concentrated in a specific area of the skull. The helmet can act as a mechanical barrier between the head and the object, preventing direct contact between the skull and the impact object. In comparison, the impact surface and buffering force that a hard hat can withstand are much smaller than those of a helmet.
At the same time, using a compliant helmet can not only avoid head and brain injuries in accidents, but also has other advantages. Goggles can block the invasion and damage of wind, sand and flying insects to the eyes, and avoid the accidental risk caused by the rider rubbing his eyes subconsciously; wearing a suitable winter helmet in winter can also keep warm, ensure brain supply, and avoid slowing blood circulation in the head due to long-term cold when riding.
Therefore, you should not wear a construction safety helmet when riding a motorcycle or electric vehicle, and you must choose an appropriate safety helmet.
What are the tips for choosing a helmet?
In addition to understanding the classification of helmets and choosing the right type of helmet according to the vehicle you drive, you also need to pay attention to the material of the helmet. Carbon fiber, which combines strength and lightness, is an ideal material for helmets. Wang Chunsong, Secretary General of the Nanjing Electric Bicycle Industry Association, said that the weight of a helmet does not determine whether it is good or bad. Although the cost of carbon fiber is relatively high, it is light and comfortable.
Some helmets have been sprayed to give them a matte or skin-like texture, but they are still made of engineering plastics, which not only do not improve safety, but may also cause secondary injuries in accidents. When a traffic accident occurs, the greater the friction, the more serious the damage to the rider caused by the friction lag. Therefore, the new national standard stipulates that the surface of the helmet should not be blocked by friction and should be smooth.
The main structure of the helmet also has an important component: goggles. Some riders tend to choose dark goggles, but Wang Chunsong pointed out that this may pose a safety hazard. Although dark lenses can protect riders from sunlight, they are not conducive to safety in darker environments, so when choosing goggles, it is not advisable to choose goggles that are too dark. In addition, the wear resistance of goggles, that is, haze, is also an important safety indicator. The new national standard stipulates that the transmittance of goggles must reach more than 85%, which is a requirement for the transmittance and wear resistance of goggles. After the falling sand test, the degree of damage to the goggles cannot affect normal use, and the haze should not be greater than 10%.
Hao Xinrui, an engineer at the China Quality Certification Center, suggested that consumers should try on helmets in physical stores or offline stores when purchasing them. During the trial wearing process, it is necessary to observe whether the cushioning layer is tight and dense. A thick cushioning layer will rebound when slightly pressed. You can also smell the helmet. Many inferior materials will emit a pungent smell. Finally, try to avoid choosing a helmet that is too cheap.
There are thousands of roads, but safety comes first. Choosing and wearing a helmet correctly is not only a compliance with traffic regulations, but also a responsibility for your own safety.
