Quick-inflating and thermal insulating type waterborne life-saving equipment

Abstract

This invention provides quick air charging thermal insulating water live-saving equipment and comprises life jacket (or air bag) and low temperature pyrotechnic gas generator with electric igniter, which is characterized in that the device can negate temperature adjustable gas to keep temperature in live-saving equipment on 40~50Deg and compensate gas for live-saving equipment decreased for temperature fall to prolong life time of person in ice-cold sea and enhance help possibility. It is fit to use in river, lake and sea under all weather conditions particular to cold autumn and winter.

Description

Technical field [0001] The invention relates to a fast-inflating, warm-keeping water life-saving device. In particular, it is a marine lifesaving device that automatically inflates air after a person falls into the water, and keeps the gas temperature in the lifejacket at 25-35°C for a long time to keep the human body warm. technical background [0002] Existing water life-saving device mainly divides three classes, and a class is the buoy ring, lifejacket etc. that kapok or foam etc. are done, can float a period of time in water. But the disadvantage is that it is usually bulky and inconvenient to carry and store. The second type is a self-inflating water lifesaving device, and its gas source is usually composed of a high-pressure cylinder filled with carbon dioxide or air and a more complicated mechanism for controlling the inflation operation. Its advantages are: easy to use and good life-saving effect, etc., but due to the use of high-pressure gas cylinders as the gas ...

AI Technical Summary

Problems solved by technology

Its advantages are: easy to use and good life-saving effect, etc., but due to the use of high-pressure gas cylinders as the gas source, there are the following disadvantages: (1) The inflation speed is greatly affected by the ambient temperature. The expansion of the gas absorbs heat, so the phenomenon of "freezing" occurs at the exhaust port, blocking the exhaust port, failing to achieve the purpose of lifesaving, and the temperature is lower than -20°C and cannot be used; (2) Explosion occurs when encountering high temperature or severe impact (3) The structure of the gas source device is relatively complicated, and the technical requirements and costs are also relatively high

However, there are disadvantages that the combustion temperature of gunpowder is high, the gas is difficult to cool, and it is easy to burn out the life jacket or air bag, or even burn the human body.

There is also a common shortcoming in the above technologies: there is no heat preservation function

After the person fell into the water, the body temperature of the person in distress continued to drop due to the low temperature of the water, and he could not survive in the water for a long time and waited for rescue.

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