1. What is the use of riding a helmet hat?

The helmet hat is an important part of riding a helmet, which can effectively protect the rider's eyes and faces from strong sunlight and rainfall.At the same time, in the process of high -speed cycling, the brim can also prevent foreign bodies such as wind sand and insects from entering the eyes, enhancing the safety and comfort of cycling.The effect of riding a helmet hat is as follows:

1. Protection of the eyes

When the riding is fatigue or faces the burning sun, the brim of the helmet can play a certain sunscreen and heat insulation, protect visual clarity, reduce eye fatigue, thereby reducing the probability of accidents.

2. Resistance to rainfall

During the cycling process, the brim of the helmet can also prevent rainwater from dripping directly on the eyes, improve the clarity of the sight, avoid the interference of rainwater, and improve the comfort of the cycling.

3. Prevent the entry of foreign matter

During the cycling process, the brim of the helmet can play a role like glasses to prevent small stones, insects, and other debris fly into the eyes of the cyclist, thereby protecting the safety of riders.

2. There are hats on the ride helmet, so there is no good

There are generally two types of people who can buy riding helmets. mountain car enthusiasts and road car enthusiasts, so riding helmets with no brims depends mainly on which kind of bicycle.

Generally speaking, there are hoods.Because the angle of the mountain car is relatively straight, if it is facing the sun, you can look directly at the sun, and you need to block the brim.Then there is a low branch of the mountain off -road. The low branches can also be blocked by the brim, which protects the head and eyes from scratching the branches.

The highway helmet does not need to be a hat, because the road vehicle only walks on the road, there is no branch, and there is no branches. The posture of the highway cars climb relatively low. It is not easy to see the sun when looking up at the road.

As for the color of the riding helmet, it is generally better to be bright. You can match it with your cycling suit. It has the effect of a suit. If the ride is dark, you can also consider the corresponding color such as bright yellow and bright red.Choosing a bright color helmet is mainly considering safety, and it is easy to be discovered and avoided you.

1. What are the constituent structures of riding a helmet?

1. hat shell

That is the hard shell of the outermost layer of the helmet.If an accidental collision occurs, the hat shell is the first line of defense to protect the head for decentralized impact.

2. hat body

That is the inner layer of the foam inside the helmet.It is the second line of defense to protect the head.It is mainly used to absorb the impact in the accident and reduce the damage of the accident.

3. Dipping ring and hat band

Used to fix the position of the helmet.The hat is fixed below the ears on both sides, and the position of the buckle is fixed to the throat.Note that after the buckle ring, the buckle and throat should reserve a space of 1 to 2 fingers. Remember not to be too tight or too loose.

4.

The brim is divided into two types: fixed and adjustable.Generally, there is no brim riding helmet on highway cars.The role of the brim is to avoid foreign bodies flying into the eyes of the riders and at the same time to achieve a certain Shading effect.

5.

The pores are to help the head heat dissipation and ventilation, and can ensure the dry hair in the long -distance cycling.The more pores, the cooler the riders will feel, but the lower the relatively safe factor.Generally, you choose a helmet with an appropriate amount of pores.

6, knob

There is a knob after riding a helmet to adjust the tightness.Rider can adjust the size of the helmet according to their head size.

7. Pad

The pad can absorb the sweat and trace vibration of the human body during cycling.

2. How to choose a bicycle cycling helmet

1. Product type

bicycle cycling helmets can be divided into two types: integrated and non -integrated molding according to the structure.One -piece molding refers to putting well -sucking PC shells and foam materials into the molding machine to form a product at one time. The shell and hat body have better fit and stronger strength to better protect our heads.Non -type molding means that the foam is formed first, and then the PC or PVC suction shell is put on the foam.The strength is relatively weak.But the price is cheaper.

2. Shell texture

cycling helmet shells are usually composed of PC (polyethylene) or PVC (polyvinyl chloride). The integrated helmet made of PC material is durable and cold -resistant.PVC material is not cold -tolerant, and has poor thermal stability and impact resistance. Whether it is rigid or soft PVC, it is easy to produce brittleness, poor use, and the safety factor is not high.Generally, the integration of PCs is better, the texture is better, it feels more real, and there is no gap.

3. End linage texture

It is the part of the inner side of the helmet with the head of the head. It can increase the comfort of wearing, and produce a buffer effect when the head is impacted.The well -handled helmet has a large coverage and better texture, and it is more strong with the inside of the helmet.

The inner lining is generally made of EPS foam, which can be divided into three colors: white, black, and gray. Among them, black and gray materials are imported raw materials.When buying, you can pinch the EPS foam with your hands. If you have a depression, the density is not enough. If the depression is serious, it is best not to buy this helmet.

4. Size

Most of the riding helmets only provide a single size adjustment, so choose the right size.To determine the size of your helmet, you can use a thin rope around the head of the head, and mark it, and then measure the length of the ruler.

5. Safe beam band

The safety beam band is also a critical accessory on the helmet. It is also one of the main accessories of the helmet. The quality of the safety bundle Belt is generally fine and soft, and the feel is very good.Poor safety beam bands are generally rough and hard. This poor safety bundle Belt will be broken at critical moments of danger, or ascension, without elasticity.The safety beam band is tightly attached to the face Skin, so you must try it when you buy it. It is better to be soft, tough, not hurting the Skin, and not allergic.

6. Adjustor

The regulator is used to adjust and fix the helmet, and it is also a critical accessory. The regulator is plastic. Generally, it depends on whether it can resist high or low temperature.It is likely that it is likely that high temperature or low temperature will easily break.

7. Belt ring buckle

Pay attention to whether the fastening method of the band ring buckle is Smooth and stable.So as not to clip or break easily, of course, loosening is also very easy to be fast, avoiding rough and sharp corners to cut the Skin.

8. Product quality

When buying a cycling helmet, you must check whether the selected helmet is labeled by the State Administration of Quality Supervision, Inspection and Quarantine.riding helmets sold in my country must meet the safety standards stipulated by the General Administration of Quality Supervision, Inspection and Quarantine before they can sell to customers, otherwise it is an illegal product.

9, breathability

Breath is the key to the helmet. It can ensure the dryness of the head during long -distance cycling. If the head is in an opaque state for a long time, it will have adverse effects on the scalp.Or the larger, the more the head is exposed, so the degree of protection decreases accordingly.

10. Wind resistance effect

The helmet puts the human hair in the helmet, and it has reduced the wind resistance of the head in itself. For friends who are keen to improve the speed, the impact of riding helmet shape on wind resistance is also worthy of attention.

1. The correct way to ride a helmet

cycling motion is also called a bicycle motion. It is a kind of sport that uses bicycles as a Tool race. As a sport, it is important to do a good job of safety protection.The safety of the head can also reduce the resistance through special design and improve the rider's achievements.However, the Bicycle helmet is not just worn casually. You also have to master the correct method of wear. So how do you wear a cycling helmet?

1. Open the band and sort out other accessories of the riding helmet to facilitate wear.

2. Put the level of the helmet on your head and slowly tighten the bundle until you feel comfortable.

3. Adjust the band below the ears and adjust the position of the band.

4. After the band is adjusted, tighten the band close to the chin and buckle the bundle band buckle ring.

5. After completing the above operations, make sure that the range of the helmet movement does not exceed 1 inch (1 inches = 2.54 cm). At the same time, it is guaranteed that the helmet without loosening the front helmet will not fall off and it means that you can wear it.

2. What are the precautions for wearing Bicycle helmets

1. After the helmet is worn correctly, it should be ensured that the front of the helmet should be a horizontal line above the eyebrow heart. The two sides are close to the temples, and the position of the helmet is not impartial.

2. Most out of control and collision are fell forward, so the helmet's wearing angle should not be too much leaning, the front of the helmet should be pressed to the eyebrows, do not expose the forehead, but too much forward will cover the sight.As a result, the helmet fixed mechanism cannot be well fixed, and it is easy to cause a helmet to move or wear uncomfortable in the bumps.

3. The buckle position also has a direct impact on the comfort of the helmet. The correct position of the "Y" font buckle should be located at about 5-10cm below the ear.Tighterness will affect comfort.

4. After wearing a helmet, you should pull down the loose regulator in the back of the head, so that the regulator can fully wrap the back of the head and then adjust the tightness.Then, the twisting knob allows the headband to give a certain pressure beam and tighten the head. It is better to shake the helmet with both hands without loosening.

5. The tightness of the band of the chin is based on the standard of one finger, and Taisong will not be able to fix the position of the helmet.The helmet needs to be worn correctly to exert its greatest effect.

6. Regardless of whether or not you fall or collide, the cyclist should change the riding helmet every three years.Because even if the helmet has not collided, the sun exposure and sweat erosion can make the safety beam band aging, thereby weakening the surrounding fitting system and damaging the protection performance of the helmet.

3. What are the principle of protection of a helmet

The principle of cycling helmet is to play a protective role by absorbing the impact of collision in the inner layer of the foam. Each cycling helmet hasMaterial orEPP (foam polypropylene) foamIn the inner layer, when the accident occurs, the inner layer of the foam will buffer collision to reduce accident damage.

It should be noted that the cycling helmet made of EPS (foam polystyrene) material, once the EPS bubble is crushed and deformed in the accident, it cannot be recovered and reused.The inner helmet made from EPP (foam polypropylene) foam can be restored to use again after being hit, but the intensity of its absorption impact is far less than the EPS bubble. ThereforeRiding a helmet, after all, safety is the first.