Inflatable life jackets are mainly composed of air-tight inflatable vest airbags, miniature high-pressure gas cylinders and rapid inflation valves, etc., and are often used in work where there is a possibility of falling into the water. Under normal conditions (not inflated), the entire inflatable life jacket is worn like a belt and hung on the shoulders of people. Because of its small size, it does not hinder people's freedom of operation; once it falls into the water, it will encounter danger in the water and require buoyancy. In an emergency, it can be inflated automatically according to the action of water (automatic inflatable life jacket), or pull the cable on the inflation valve by hand (manual inflatable life jacket), it will be inflated within 5 seconds to produce 8-15 kg of buoyancy, upward Hold the human body so that the head and shoulders of the person who accidentally fall into the water are exposed to the surface of the water, so as to obtain safety protection in time.
