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Huaqiang Security Network News ]
As a fast and maneuverable vehicle, cars bring great convenience to people's production and life, and there is also the risk of causing traffic accidents. Traffic accidents often result in casualties of occupants. The car seat belt can restrain the occupant tightly on the seat, prevent the occupant from colliding with the hard parts inside the car, and prevent the occupant from being pulled out of the car, thereby protecting the occupant's safety and reducing the occupant's body damage.
The car seat belt consists of a webbing, a buckle lock, a seat belt adjustment device, and an attachment that secures it in the vehicle. According to different fixing methods, car seat belts can be divided into three types: two-point, three-point, and full-back.
The production and use of automobile seat belts in China began in 1990 and has been developed for more than 20 years. There are about 57 national automobile seat belt manufacturers, which are distributed in 19 provinces and cities nationwide. It is mainly concentrated in 8 regions including Tianjin, Beijing, Shanghai, Jilin, Jiangsu, Zhejiang, Hubei and Guangdong, accounting for 70% of the total number of production enterprises in the country.
Most of the domestic automobile belt manufacturers with large production scale are foreign-funded enterprises. With advanced foreign technology and abundant funds, they occupy the high-end market, with high profits, large production and sales, sophisticated production testing equipment and superior product performance. Small-scale enterprises are mostly limited liability companies or private enterprises (including individuals), and production testing equipment is relatively simple.
The advanced technology of car seat belts is currently controlled by well-known large foreign companies. China introduced and absorbed, gradually mastered these technologies, and developed advanced prefabricated and force-limited seat belt products. The product is not mature enough and needs to be improved.
Car seat belts are one of the first auto parts in China to adopt compulsory certification management. After more than 20 years of development, the quality of car seat belt products has increased significantly. From the perspective of national supervision and spot checks in recent years, the quality of its products is in good condition and the production of the industry is relatively standardized. Production enterprises have a certain scale: they have a formal factory, a production line, and necessary testing equipment.
At present, China's national mandatory standards for car seat belts mainly include:
(1) GB 14166-2003 "Safety belts and restraint systems for adult occupants of motor vehicles" is a national mandatory standard for car seat belt products. It defines the definition, technical requirements and test methods of car seat belts. He is the main basis for assessing the quality of car seat belt products.
(2) GB 8410-2006 "Combustion Characteristics of Automotive Interior Materials" specifies the flame retardant requirements for flammable components in vehicles. Among the car seat belt products, only the webbing is involved in this item.
(3) GB 14166-2013 "Safety belt for motor vehicles, restraint system, child restraint system ISOFIX child restraint system" standard has been released, its mandatory content mainly increases the child restraint system ISOFD (child restraint system and other technical requirements.
Common main problems
1, the retractor tilt lock
When the vehicle is tilted at a large angle, it is often easy to roll over, and the tilt lock function of the car seat belt should function. If it is not locked, the occupant will fall over and collide with the hard object inside the car and be hurt.
Reasons for disqualification: The vehicle is driving on the hilly bumps, and the seat belts are frequently locked, which makes the occupants very restrained and uncomfortable. In order to improve the comfort of the occupants, the manufacturer reduces the locking sensitivity of the seat belt. Tilt lock performance does not meet the requirements.
2, seat belt strength
When the vehicle collides, it generates a huge inertia force. If the car seat belt breaks, the occupant will be thrown off the seat and collide with the hard objects such as the steering wheel, windshield, seat back, and door in the car, and even get out of the car. Caused casualties.
Reasons for disqualification: First, the company uses inferior materials to produce safety belts; second, the quality of parts purchased by enterprises is flawed.
Purchase and use tips
1, the correct wearing of car seat belts
It is necessary to get on the car seat belt, but it is often overlooked. The correct way to wear the three-point seat belt: the waist belt should be attached to the pith, not to the abdomen; the shoulder belt should be diagonally across the shoulder in the center of the chest, never in the neck, nor slip off the shoulder under. The seat belt should be placed close to the occupant and the webbing should not be twisted.
2, the use of car seat belt misunderstanding
(1) Vehicles with airbags do not need to wear seat belts
Airbags are not a substitute for car seat belts. In the event of a car accident, relying solely on airbags is very dangerous. Because the explosive force of the airbag is very large, if there is no traction buffer of the seat belt, it will directly hit the airbag that is erupting, which will cause serious damage to the body. Therefore, the airbag is to be used in conjunction with a seat belt to provide a safety effect.
(2) City roads do not need to wear seat belts
Wearing a seat belt can affect people's activities and make people feel uncomfortable. Many people are not willing to bring a seat belt. Especially when driving on urban roads, it is considered that the speed of the vehicle is low and there is no danger without the seat belt. In fact, in low-speed collisions and emergency braking, the body's forward thrust is also very large. It can't be controlled by its own hands and feet, and the occupants are often injured. Wearing a seat belt can avoid injury or reduce injury.
3, car seat belt daily maintenance inspection
After the car seat belt is used for a long time, the seat belt parts may be squeezed and cut, and dust and debris may enter the retractor and the buckle lock, which may reduce the function of the seat belt. Seat belts should be taken care of and maintained.
The webbing and edges of the webbing of the car seat belt should be smooth and flat. When the surface of the webbing is fluffed, the edges are loose, the web is broken, and the web is scratched, the strength of the webbing is greatly reduced.
From the retractor, pull out and retract the webbing, and the movement of the webbing should be smooth and free. When the webbing is quickly pulled out, the webbing should be locked immediately.
The engagement of the locking tongue with the buckle should be light and brittle. Should not block and virtual engagement.
If the car seat belt is old or damaged, you must go to the 4S shop to replace it. Seat belts cannot be dismantled. If you have any problems, please ask a professional to repair them.
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