The "safety" suit junior high school mechanics has become the primary consideration for drivers and occupants, and it is also one of the most important performances of automobiles. Traditional components that ensure safe driving, such as rearview mirrors and left and right door mirrors (traditional rearview system), seat belts, AIRBAG (airbag) and ABS (anti-lock brake system), etc., have been used by the majority of drivers and passengers. People are familiar with it and are widely used in imported luxury cars. However, the traditional concept of safe driving: seat belt ten AIRBAG ABS ten traditional rear-view system is not equal to the full concept of safety, because the traditional rear-view system consists of three flat mirrors or wide-angle mirrors. The flat mirrors have blind spots (dead corners) and wide-angle mirrors. There is parallax, and blind spots and parallax are often the causes of car accidents.

1. Seat belt pre-tightening device When an accident occurs, the person is forward and the seat is backward. At this time, if the seat belt is too loose. The consequence is likely to be: the occupant slips out from under the seat belt: or, the person has touched the airbag, and the seat belt has not been tightened in time due to the excessive tension margin, that is, it has not eaten as expected. Part of the impulse, but handed over all the burden to the airbag. Both of these situations can result in serious injuries to the occupants. But the problem is that the seat belt is properly installed. Where does the room for loosening come from? First, because the occupant's clothes themselves have a certain thickness, and some loose room is also hidden in the seat belt device. This room cannot be eliminated, but when an accident is really encountered, it should be eliminated as much as possible. What to do? For this reason, this seat belt pre-tightening device has appeared, which is responsible for providing an instant-tightening seat belt.

2. After the accident of the seat belt tension limiter, the seat belt has been tightened under the action of the pre-tightening device. But we hope that after the peak force has passed, the tension of the seat belt will be reduced immediately to reduce the force on the occupants. This special task is completed by the seat belt tension limiter: on the seat belt device, there is a As mentioned above, the pre-tensioning device is wound with a seat belt underneath. The inside of the shaft core is a steel torsion bar. When the load reaches the predetermined condition, the torsion bar starts to twist, so that the seat belt is loosened to a certain extent, and the tension limit function of the seat belt is realized.

　　junior high school mechanics suitUnder the joint action of the seat belt pre-tensioning device and the seat belt tension limiter, the protection capacity of the seat belt has almost reached the ideal state. The so-called spirit in the subtle, advanced seat belts can indeed provide reliable safety protection for the occupants.

3. When the car encounters an emergency braking in an unexpected situation, it can restrain the driver and passengers on the seat to avoid forward collision, thereby protecting the driver and passengers from injury caused by the second collision. Equipment Description:

Seat belt: the original 3-point seat belt of the car is used and installed firmly.

Seat: regular car adjustable seat.