Lifebuoy, commonly known as water float.
Usually made of cork.
Foam or other light materials with a small specific gravity, wrapped in canvas.
Plastic, etc. For swimming practice, a lifebuoy can also be made of rubber and filled with air.
It is one of the main types of life-saving equipment, usually as a necessary product for water rescue and related production and operation processes of safety protection, is a circle that will float on the surface of the water, to give support to drowning people to avoid sinking to the bottom.
The role of the ship lifebuoy is to ensure the safety of the crew and passengers so that if there are people in the water or the ship is in distress abandon the ship.
All the occupants of the ship can use this life-saving equipment to wait for rescue.
In water navigation, only the correct grasp and use of a lifebuoy, encounter danger to no safety concerns, to really ensure safety.
So, what is the use of drowning life preservers? We lead everyone together to understand it!
A lifebuoy is a river, lake, sea or swimming pool, and other water lifesaving necessities, it is a circle that will float on the surface of the water, to give support to the drowning, to avoid sinking to the bottom of the water.
The use of the lifebuoy is the thrower one hand holds the lifeline of the lifebuoy, and the other hand will be thrown in the direction of the downstream of the fallen person.
No flow and wind should be thrown in the upwind so that the fallen person climbs to take, pay attention not to hit the body of the fallen person.
But also the lifeline tied to the side of the railing, two hands to throw the lifebuoy.
A falling person first grabs the handle rope, and then both hands while pressing down the side of the lifebuoy.
So that the lifebuoy erect, hands and head into the circle, and then the lifebuoy in the two armpit face, keep the head above the water.
The body floating in the water, the thrower recovery lifeline, the falling person pulled to the side of the boat.
The production requirements of the lifebuoy
Appearance
1. Lifebuoy appearance color should be orange-red, and no color difference.
2. The surface of the lifebuoy should be no bump. No cracks.
3. Four equally spaced positions along the circumference of the lifebuoy should be surrounded by a 50mm width of reverse reflective tape.
Size
1. The outer diameter of the lifebuoy should be no more than 800mm, and the inner diameter should be no less than 400mm.
2. The periphery of the lifebuoy should be equipped with a diameter of not less than 9.5mm.
The length is not less than four times the outer diameter of the lifebuoy, and the floating handle rope.
This rope should be fastened in four equidistant positions around the ring body, and form four equal-length rope rings.
Weight
Lifebuoy weight should be greater than 2.5 kg. With self-emitting smoke signals and self-lighting floating lights attached to the speed-throwing device, the weight of the lifebuoy should be greater than 4 kg.
Material
Integral lifebuoy material and shell-filling type lifebuoy inner filling material should be used closed-cell foam material.
Performance
1. Lifebuoy should be resistant to high and low temperatures, with no crumbling. Rupture. Expansion. Disintegration.
2. Lifebuoy from the specified height after throwing, should be no cracking or broken.
3. Lifebuoy should be resistant to oil, with no crumbling. Cracking. Swelling. Disintegration.
4. Lifebuoy should be fire-resistant, and should not burn or continue to melt after the fire.
5. Lifebuoy should be able to support 14.5kg of iron in fresh water to continue to float for 24h.
6. Lifebuoy in the case of free suspension, should be able to withstand 90kg of weight for 30min without rupture and permanent deformation.
7. For the lifebuoy with a self-emitting smoke signal and self-lit floating light attached to the speed-throwing device, the release should be able to trigger the device.
Rescue life buoy throwing position to be correct, not to hit the water fallen person.
Lifebuoys do not store in the place of chemical agents or corrosive products, lifebuoy storage places are flat, and usually do not randomly drag.
So as not to break the ring body accessories or the ring body grinding out burrs.