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Life hammer

April 22, 2023
Concept A life-saving hammer, also known as a hammer, is an assisted escape tool in a closed cabin. It is generally installed in a place that is easily accessible in closed cabins such as automobiles. In the event of an emergency such as a fire in a car or a car falling into the water, it can be easily removed and smashed through the glass window door to escape.

Use method 1, the use of a hammer The life hammer is mainly the use of its conical tip, because the tip of the contact area is very small, so when using hammer hammer glass, the contact point pressure on the glass (not pressure Oh, and The pressure per unit area is quite large. This is similar to the principle of the pushpin. The film is easily pierced, and the glass of the vehicle is subjected to a large external force at this point to cause a slight crack, and for the tempered glass. In terms of cracking, a little bit of cracking means that the stress distribution inside the entire glass has been destroyed, and innumerable spider-like cracks are generated in an instant. At this time, the glass fragments can be removed by gently tapping the hammer again. .

The middle part of the tempered glass is the strongest, with the four corners and the edges being the weakest. The best way is to hit the edges and corners of the glass with a safety hammer, especially in the middle of the top edge of the glass. Once the glass cracks, you can knock a few more times. It is said that about 2 kilograms of pressure can smash the corners of the tempered glass. 2.

If you take a long-distance car, it is best to choose to sit near the safety door or the roof safety exit. If you like, you can take a closer look at the instructions on how to open the safety door, because in the event of an accident, you can't look at the instructions quietly.
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