A lifebuoy is a water lifesaving equipment, usually made of cork, foam plastic or other lightweight materials with small specific gravity, covered with canvas, plastic, etc. Lifebuoys for swimming practice can also be made of rubber and filled with air, also known as rubber rings.

A lifebuoy is a tool that people rely on to survive when they are in distress on the water. For safety reasons, people often like to bring a lifebuoy when swimming in the summer.

People who are new to swimming prefer to accompany it. Even sailors who are familiar with waterways should have several lifebuoys on hand on each boat when going out to sea.

How does a lifebuoy float on the water?

The principle is that the density of air is greater than that of water. Lifebuoys are usually made of cork, foam, or other lightweight materials with low specific gravity.

It is small in mass, large in volume, contains a lot of air, has high buoyancy, can carry people, and is often used for surface rescue.

The difference between lifebuoy and swimming ring:

The lifebuoy is for life saving and has many auxiliary functions. Swimming rings are defined as water toys and only implement toy standards.

Therefore, compared with the real life buoy, the toy swimming ring is easily damaged and leaked, has poor pressure resistance and is extremely easy to burst. The plastic surface is slippery and difficult to grip. Dangerous if taken into deep water.

Lifebuoy is a kind of water lifesaving equipment, the production process is complicated, and the requirements are relatively strict.

The weight should be greater than 2.5 kg. A lifebuoy equipped with a self-igniting smoke signal and a quick throwing device with a self-igniting float light should weigh more than 4kg.

Choose the lifebuoy correctly.

1. Choose a lifebuoy with smooth seams, thick material, and contrasting colors with the water surface.

2. Choose a soft and elastic swimming ring on the fabric, so that it has a buffering effect in the event of a collision and avoids injury.

3. When buying a lifebuoy, you can choose a product with multiple airbags and independent inflatable nozzles, so that even if one of the airbags leaks, there will be enough air support.

4. Beware of lifebuoys with pungent odors, which may be made of low-quality plastic and contain chemicals that are harmful to humans.

5. Some consumers like beautiful styles, but they must pay attention to the quality and function of the lifebuoy when choosing.

With the application of new technologies and new materials, all kinds of life-saving equipment emerge in an endless stream: lifeboats, life jackets, everything.

But the traditional equipment of lifebuoy is still used by people and is still a simple life-saving tool.