Ten misunderstandings of helmets

Helmets are protective devices for the protection of the head. They are used by military personnel to train and wear combat hats. They are an indispensable tool in people's traffic. It is mostly semi-circular, mainly composed of three parts: shell, lining and suspension device. The shells are made of special steel, glass steel, reinforced plastic, leather, nylon and other materials to withstand the head damage caused by bullets, shrapnel and other striking objects. In ancient China, it was known as 胄, 铠, 鍪 or 鍪.

Use Misunderstanding 1. The helmet should be as light as possible. Relatively speaking, the helmet should be as light as possible. However, the lighter the riding helmet, the less chance it will test the national safety certification test standard, and the higher the relative price. Therefore, the premise of selecting a helmet is to pass the national safety certification test standard. Most helmets over 200 yuan can achieve about 260G. Even if the weight is long distance, it will not make you tired. Therefore, you don't need to care too much about the helmet's weight index. Unless you are for a bike race. Try to lighten your weight. Otherwise, it is not worth spending extra money to buy an ultralight helmet.

2. The bigger or more the hole in the helmet, the more breathable the ventilation is the key to the helmet, to ensure your head is dry when riding long distances. The more or larger the ventilation holes in the helmet, the greater the airflow around your head, and the cooler you feel. However, keep in mind that the more or larger the ventilation holes in the helmet, the more your head is exposed, so the degree of protection is reduced accordingly. Road bike helmets have more or larger ventilation holes than mountain bike helmets. Similarly, road cyclists need to consider helmet weight factors more than mountain bikers. In general, the lighter the weight of the helmet, the more expensive the price. Therefore, unless you are trying to compete in cycling, try to reduce your weight. Otherwise, it is not worth spending extra money to buy an ultralight bicycle helmet.

3, small buckles and pull belts are related to life, buckles and pull belts can not withstand a certain force, it will break.

You may only know that the riding helmet should do some crash tests. However, the buckles and drawstrings should also be tested for pull. If they fail to pass the corresponding pull test, they cannot be used on helmets. Therefore, a qualified riding helmet, small buckle and drawstring must pass the corresponding test, only if a person truly meets the national safety certification test standard helmet.

4. If the helmet breaks or is overused, it will not be used if it is cracked. If you wear it, it is only a comforting feeling. There is not much substantive use. If you touch it, it doesn’t matter if you touch it. Not necessarily to play a protective role. Do not underestimate a crack, which has changed the force and force of the helmet on the physical structure. Do you know the cause of the collapse of a bridge in Seoul in the 1990s? It was later inferred that it may be due to a crack in one of the solder joints on one side of the bridge that was not welded solidly. For the simple principle, if you try to pull a brand new A4 paper from both ends, it may take a little effort to tear it off, but once you tear a small hole in the middle of the paper, it is easy to tear the paper.

The rider should change his riding helmet every three years, regardless of whether he has fallen or crashed. Because, although the helmet does not have a collision, the sun exposure and sweat erosion will also make the helmet and some accessories aging, thereby weakening the safety factor and damaging the helmet protection performance.

5. Wearing a helmet without a helmet with a helmet may feel more comfortable, but if the head is collided, it will easily bounce off and will naturally not protect. Therefore, in order to exert the protection of the helmet, please wear a helmet strap at any time.

6. Wear an oversized or narrow helmet. If the helmet is not the correct size, it cannot protect your head from impact. Do not make the mistake of buying an unfit helmet. To determine the correct size of the helmet, first measure the largest part of the head (usually 1 cm above the eyebrows) and then purchase the helmet according to this measurement. Since the helmet is often divided into small, medium, and large codes, you may only be able to buy a relatively suitable size, and then use the resize knob to adjust to achieve the best fit. After wearing a helmet, turn the helmet from one side to the other and from the front to the back, and feel comfortable. If it is too loose or too tight, you need to continue to adjust or replace it.

7, the use of inferior helmets in China helmets do not need to be certified helmet manufacturing is a strict technical standards, poor helmets often fail to meet the safe collision standards, will cause danger. It may be that many riders do not know how to know if the helmet they bought is not safe. In fact, whether or not a helmet is affixed with a CE mark on the helmet cannot determine whether the helmet is safe or not. It must also have a corresponding test report and certification. The CE mark certification is for product-specific certification and focuses on the product's safety features. It is a conformity certification that reflects the product's requirements for public safety, hygiene, environment, and personal safety.

So in China, riding helmets do not need certification? the answer is negative. Before 2009, China did not have a complete standard for the safety of riding helmets. At that time, it was the safety requirements and experiments for sports helmets, bicycles, skateboards and roller skating helmets that were jointly drafted by Speeding Helmet Inc. and other companies. The method was formally implemented in 2010, after which different versions of the national standard appeared.

However, in China, most helmets are produced in accordance with the CE EN 1078 standard. Most helmet manufacturers in China still export more. Therefore, helmets purchased in the Chinese market are basically CE EN 1078. Some have posted this CE mark, but they have not been sent to TUV and SGS has been certified. Each product and different size should have corresponding test reports and certifications. Consumers must pay special attention. Helmets without safety certification are dangerous.

Therefore, helmets that circulate in the Chinese market need not be labeled with CE, but also have corresponding test reports and certifications before they can be considered as truly qualified helmets.

8, wearing the position is not the most effective helmet position to wear to maintain the helmet and head level, helmet edge should be about 1 cm above the eyebrows. If this is not the case, check the size of the helmet and adjust the adjuster knobs and straps to make sure that the helmet is in the correct position.

9. The loose and loose banding of the bandage makes it possible for the helmet to jump and move at any time. When the head is impacted, the secondary collision will cause the protection effect to decline. Therefore, the length of the pull strap needs to be adjusted so that the distance between the pull strap and the chin is adjusted to a space between the fingers to maximize the effective safety protection performance of the helmet.

10. After riding helmets are used after riding helmets are used, please put them in a cool and ventilated place to avoid high temperature, or long-term exposure to sunlight.