Introduce nine earthquake rescue tools

Earthquake, this terrible vocabulary is now pushed to the cusp. From the Wenchuan earthquake, to the earthquake in Haiti, to the earthquake in Yushu County in Qinghai, the following times touched people. While silently praying for the Yushu people, how can we help more lives with the fastest speed has become the focus of national attention. Next, keep this heavy topic for a moment and briefly introduce several rescue tools needed in the earthquake relief.

1: life detector

Life detector is currently the most advanced search and rescue and detection instrument in the world. It mainly finds the “living person” position by sensing the electric field (generated by the heart) generated by ultra-low-frequency waves emitted by the human body. The ultra-low frequency electric field emitted by the human body can penetrate reinforced concrete walls, steel plates, planks, and even water. Therefore, as long as there are signs of life, whether it is awake, unconscious, trapped in a rubble, or hiding in a container, a life detector can be used. Find it in the shortest possible time. The life detector has an open detection range of up to 500 meters and can detect life through ordinary steel plates 80 centimeters thick. What is even more amazing is that the life detector detects only human life and does not work on the lives of other animals. It is highly targeted.

2: "Snake Eyes"

The first step to rescue rubble deep is search. The survivors were buried in the rubble and it was clearly too slow to dig through the rubble with their hands. Using heavy machinery to move them could injure others. Various search instruments can help. "Snake Eye" is a kind of search instrument. Its scientific name is "optical life detector" and it uses light reflection to carry out life detection. The body of the instrument is very flexible, like a snake skin tube used in the sewer, which can be freely twisted in the rubble. There are small probes in front of the instrument that can penetrate into the tiny gap detection. Similar to the camera equipment, the information is sent back. The rescue team can use the viewer to clearly see the depth of the rubble. The anti-theft device used in many museums and supermarkets is such an optical probe plus an observer.

3: Small air cushion

Small air cushion can support dozens of tons of weight. Finding survivors should be saved. This is an effort, sometimes lifting heavy floors. It is hard to imagine that a small air cushion can accomplish this task. This kind of air cushion is not much bigger than a pillow. If you do not inflate, you can stuff it with a 5 cm gap. Then use a gas cylinder to add the air pressure inside it to 8 atmospheres, and the “gas drum” mat can lift the floor. The material of the air cushion is quite particular. The earliest people used steel mesh to add rubber, and later switched to a new type of material, high-strength aramid. This material is very tough. The riot police used gloves to do it, and to wear it. The police can hold the blade of a sharp dagger without hesitation.

4: hydraulic clamp open bite rebar

If the reinforcements on the site are staggered, we must look at the hydraulic clamp. The size of this type of pliers is not large, but due to the application of the hydraulic principle, a small pliers can cut a single steel bar, which will earn valuable time for the rescue work.

5: Moon Light

The sky is dark, but the rescue cannot stop. The role of the moon light is very eye-catching. The moonlight is powered by up to 2,000 watts of electricity. It is said that two moon lights will illuminate a football field.

6: Rescue robot

Not long ago, Japanese scientists developed a snake-like robot and said that it could soon play a role in earthquake rescue. The principle of this robot is similar to the aforementioned "Snake Eye" search instrument. Snake-shaped robots are more flexible than Snake Eyes. Each joint has a micro-motor to provide power and activities are more convenient.

7: Thermal infrared detector

The thermal infrared life detector has a night vision function. Its principle is to judge different targets by sensing the temperature difference, so it can also work in the dark. Professor Wang said that this kind of instrument is a bit like the instrument that measures the temperature of the door of the mall, but it is more than that, and it has an image display.

8: Sound wave vibration life detector

The sonic vibration life detector relies on identifying the sound of a trapped person. Humans have two ears. The instrument has three to six ears. Its ears are called "vibrators". They are also called vibration sensors. They can judge the specifics of survivors based on the small differences in sounds heard by each ear. position. The voice of speech is the easiest to recognize for it because the designer has fully studied the frequency of human voice. If the survivor can no longer speak, just tap with your finger and make a slight noise that can also be heard by it. The key is that the impact of noise cannot be too great.

9: Rescue dogs

The most "smart" search specialists are search and rescue dogs. They are the best searchers in the world. The bravery of rescue tools is no match for people's self-rescue measures during the earthquake. High-rise tenants should not blindly jump to escape. You can try to hide in a narrow space such as a bathroom. Pay attention to hiding on the edge of the load-bearing wall. Do not take advantage of the wall or wall that is not loaded. In addition, the large wardrobe and the table can also hide, provided that the furniture is adequate