How to use the safety hammer and precautions

This article is to introduce you to the two aspects of the safety hammer, one is the use method, the other is the use of precautions.

How to use the safety hammer

The main purpose is to use the conical tip of the life-saving hammer. Since the contact area of ​​the pointed tip is small, when the hammer glass is used, the contact point has a relatively large pressure on the glass (this is somewhat similar to the principle of the pushpin), and the glass of the car is made. At this point, a large external force is applied to cause a slight crack. For tempered glass, a little cracking means that the stress distribution inside the whole glass is destroyed, so that numerous spider web cracks are generated in an instant, so you can use a hammer to lick a few more times. The glass fragments are removed.

Safety hammer use precautions

Since the middle part of the tempered glass is the strongest, the four corners and the edges are the weakest. Therefore, when there is danger, the best way is to hit the edge and four corners of the glass with a safety hammer, especially in the middle of the upper edge of the glass. Once the glass has cracks, you can knock it a few more times. It is said that about 2 kg of pressure can smash the corners of the tempered glass.

When you are on a long-distance bus, it is best to choose a closer to the safety hammer, safety door or roof safety exit. If you like, you can take a closer look at the instructions for opening the security door, because in the event of an accident, you can't calmly look at the instructions.

The car is equipped with a safety hammer and the hammer can still function. If the car is equipped with a safety hammer, it must be placed in a convenient position.

In the event of an emergency, the driver should aim at the center of the left and right sides of the bottom two-thirds to ensure that they can quickly get out. The strength of hitting the glass with a safety hammer will be significantly stronger than that of blunts such as pebbles, and the general tempered glass can be crushed.