There are two colors of adult life jackets: yellow-white and bright red. Among them, bright red is for the crew, and yellow and white is for tourists. Both of these colors are warning colors, making it easy for rescuers to spot and distinguish in the vast sea. The life jacket is made of nylon material, which has the effect of double insurance. There are two high-pressure gas cylinders on the left and right, which can be automatically inflated within 2 seconds as long as they pull the bright red door handles on both sides, and the mouth boiler blowpipes on both sides can also manually pump air to improve buoyancy. The switching power supply of the sitting indicator light is stimulated by the seawater, and the power supply system time can be nearly 12 hours or more, which is easy to find at night. Some are also equipped with wind whistles (for calls) and vanity mirrors (reflective surface light sources).
Maybe many people will unconsciously ignore the necessity of life-saving equipment when freeswimming, especially the current children, a summer to swim by the river children can be described as a "group", because parents have no experience, feel the risk of swimming in the water, just advise children not to swim in the river, but they ignore the child's adolescent rebellious psychology, often resulting in irreparable results, in fact, we only need to prepare some life-saving equipment for children since childhood, such as lifebuoys, Buoyancy vests, etc., add advice not to go to Suezhi River to swim at will, and then let them develop the Xi of carrying life-saving equipment with them when they go swimming, so that accidents can be avoided to a large extent.
When a drowning person steps on water and wants to surface, the life jacket becomes an obstacle, causing choking. For those who can swim, they may be able to adjust their bodies on their own, but those who can't swim are already helpless when they drown, and the inability of life jackets to help them adjust will make them panic even more and cause drowning. At present, the buckle design of life jackets is relatively convenient and sturdy, if you wear it correctly, even if the sea shock or sea level floats for a period of time, it is not easy to disperse, and the possibility of survival will be greatly increased. The most important thing is to tie the strap in the knot to prevent it from being impacted or floating for too long and letting go.
First of all, put the life jacket around your neck and place the square buoyancy bag in front of you; Tie the strap of the collar. Then the left and right abdominal bands are crossed over the buckle loops on the left and right sides respectively, and they are intersected behind the body; *Then put the belly strap over the buckle loop on the chest and tie the dead knot. Remember to make sure that the two straps at the base of the thighs are fastened, if you just put them on your body like a shoulder, it will not be useful. Because the human body moves down in the water, the life jacket is adjusted upward, and if you don't tie these two straps, the life jacket will run upward, strangling the neck and shoulders Needless to say, the life jacket will be taken off after a few waves. In fact, 88% of people don't know, but this is a rescue point.
Among them, the test-firing wireless antenna is installed around the cabin door of the tourist's import and export trade, and the signal range can be adjusted. When the plane lands, the conductor opens the control board (prohibited in the middle of the airline) into the working state, and if someone takes the life jacket without permission and brings it to the perimeter of the cabin door, the signal range can be adjusted. When the plane lands, the conductor will open the control board (prohibited in the middle of the air) into the working attitude, the life jacket manufacturer will take the life jacket without permission and take it to the cabin door of the wireless antenna test signal range, the control board will send out the alarm sound, and at the same time, the target block installed in the life jacket will also send out the alarm sound. When the stolen life jacket leaves the range of the wireless antenna, the control board stops the alarm sound, but the target block will still sound the alarm for the conductor to take action. The role of the portable tester is to eliminate the siren sound, as well as the target block used to remove the life jacket, etc.
