Safety Hammer

The rescue hammer, also known as the safety hammer, is an auxiliary escape tool installed in a closed cabin. It is usually installed in an easily accessible place in a closed compartment such as a car. When the car and other closed cabin fire or fall into the water and other emergency, can be convenient to take out and break the window door to escape smoothly.

Mainly using the conical tip of the lifesaving hammer, because the contact area of the tip is very small, so when using the hammer to smash the glass, the contact point on the glass pressure is quite large (which is a bit similar to the principle of the thumbtack), and the car glass at this point by a large external force and slightly cracked. For tempered glass, a little bit of cracking means that the stress distribution inside the whole glass has been destroyed, which produces countless spider network cracks in an instant. At this time, as long as the hammer is gently hit a few times, the glass fragments can be removed.

How to use it ?

because the middle part of the tempered glass is the strongest, the corners and edges are the weakest. So, in case of danger, the best thing to do is to hit the edges and 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 hit it a few more times. It is said that about two kilograms of pressure can break the corners of toughened glass

When you take a long distance bus, it is best to choose a seat near the safety hammer, the safety door or the safety exit on the roof. If you want to, you can read the instructions for opening the safety door carefully, because in the event of an accident, you will not be able to sit still and read the instructions.

A car with a safety hammer can still play a role. If a private 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 from the bottom up two-thirds of the left and right side of the center of the hammer, to ensure rapid escape. The force of hitting glass with a safety hammer will be significantly stronger than cobblestones and other blunt objects, and the general tempered glass can be broken.