RU202975U1 - Inflatable life raft - Google Patents

Abstract

The utility model relates to the means of collective rescue of passengers and crew of surface ships, floating structures and means. It includes a body of lower and upper buoyancy chambers made in the form of tubular closed shells, a bottom, an awning with inlet openings located on opposite sides, an inflatable stand made in conjunction with an upper buoyancy chamber, a gas filling system. The bottom is made of two layers and contains a lower layer of rubberized material and an upper layer of flexible closed-cell polypropylene laminated with aluminum foil. The upper layer of the bottom is made with a thermal conductivity coefficient of no more than 0.0344 W / mK. The awning of the raft is made of two layers that are not connected to each other. The inner layer of the awning is made on the basis of polyamide fabric, the outer layer is made of a waterproof membrane material with an oil-water-repellent finish. Provides increased safety and reliability when rescuing people in extreme conditions. 9 p.p. f-ly, 3 dwg

Description

The utility model relates to the means of collective rescue of passengers and crew of surface ships, floating structures and means.

The known inflatable life raft for yachting according to the patent document RU175072 (publ. 11/17/2017) includes a body of two buoyancy chambers made in the form of tubular closed shells, a single-layer bottom, a single-layer awning with an inlet, a general gas filling system for the buoyancy chambers. Contains one inflatable rack, made in conjunction with the upper buoyancy chamber. The buoyancy chambers are made in the form of polygons in the plan, and the inflatable rack is made in the form of an isosceles trapezoid.

The well-known inflatable liferaft according to RU 169168 (publ. 03/07/2017) is a means of collective rescue of passengers and crew of inland navigation vessels and vessels of mixed (river-sea) navigation. The inflatable life raft includes a body of two buoyancy chambers made in the form of tubular closed shells, a bottom, an awning with inlets located on opposite sides, a gas filling system. Contains one inflatable stand made in conjunction with the upper buoyancy chamber, and the lower buoyancy chamber contains an inflatable platform. Buoyancy chambers with autonomous gas filling systems are made in the form of regular polygons, and the inflatable stand is made in the form of an isosceles trapezoid.

The technical problem solved by the present utility model is to improve safety and reliability in rescuing people in extreme conditions.

The solution to the technical problem is achieved by the fact that the inflatable life raft includes a body of lower and upper buoyancy chambers made in the form of tubular closed shells, a bottom, an awning with inlet openings located on opposite sides,

an inflatable stand made in conjunction with an upper buoyancy chamber, a gas filling system, while the bottom is made of two layers and contains a lower layer of rubberized material and an upper layer of elastic closed-cell polypropylene laminated with aluminum foil. The upper layer of the bottom is made with a thermal conductivity coefficient of no more than 0.0344 W / mK.

The awning of the raft is made of two layers that are not connected to each other. The inner layer of the awning is made on the basis of polyamide fabric, and the outer layer is made of a waterproof membrane fabric with an oil-water-repellent finish. The outer layer of the awning has an orange fluorescent color with a luminance factor of 0.4.

On the awning there is an electric signal fire combined with an internal electric lighting, the power source for the electric signal fire is a battery with a dry cell.

The lower buoyancy chamber contains a non-inflatable platform with a ladder at the inlet on one side, the buoyancy chambers are made in the form of regular polygons, the inflatable stand is made in the form of an isosceles trapezoid. The main ladder is located at the inlet on the opposite side. The inflatable rack is filled automatically through non-return valves located on the upper buoyancy chamber.

The present utility model is illustrated by the following drawings: FIG. 1 shows the inventive raft, General view, FIG. 2 - the same, general view without an awning, in Fig. 3 - the same, the scheme of laying the launch line in the cassette.

The raft (Fig. 1, Fig. 2) is an inflatable floating device, made mainly of rubberized fabric, and consists of the following components:

- lower and upper buoyancy chambers 1;

- bottom 6;

- awning 10

- gas filling systems 4.

Buoyancy chambers 1 are autonomous and located one above the other, and in case of damage to one of them or if one of them is not filled, the intact or full buoyancy chamber 1 ensures that the raft is afloat for the estimated number of users with a positive freeboard along the entire perimeter.

Buoyancy chambers 1 are equipped with a safety valve (or valves) 2, a combined pump and release valve 3. The buoyancy chambers 1 can be refilled with a hand bellows (not shown).

The gas filling system 4 serves to fill the buoyancy chambers with 1 gas mixture. It consists of cylinders with a starting device and component supply lines (not shown). The lower buoyancy chamber 1 is filled from one cylinder, and the upper buoyancy chamber 1 together with the rack is filled from another cylinder of the gas filling system 4.

The upper buoyancy chamber 1 is made together with an inflatable stand (not indicated). The inflatable rack is filled automatically through non-return valves (not shown) located on the upper buoyancy chamber 1. The rack has a combined pump and release valve 3.

The lower buoyancy chamber 1 from the side of one inlet 11 has a non-inflatable landing platform 5 with a ladder, designed to facilitate the entry of users into the raft. At the inlet 11c of the opposite side of the awning 10, the main ladder 21 is located.

The bottom of the raft 6 is two-layer: it contains an outer layer of rubberized material and an inner layer of flexible closed-cell polypropylene laminated with aluminum foil (for example, the material "Penotherm"). The double layer bottom 6 provides insulation from the cold. On the bottom 6 there is a drainage tube with a stopper (not shown) to prevent the raft from sticking to the water surface. On the outside of the bottom 6 there are seven ballast compartments 7, an auxiliary ladder 8 and reflective strips 9.

Ballast compartments 7 provide stability on the wave and reduce the drift speed of the raft.

The auxiliary ladder 8 serves to turn the raft in case it turns out to be bottom 6 upwards during filling.

The awning of the raft 10 is made in two layers, it includes an outer layer made of a waterproof membrane material with an oil-water-repellent finish, and an inner layer based on a polyamide fabric. The air space between the layers of the awning 10 serves for thermal insulation and helps to maintain optimal temperature conditions inside the raft. For the inner layer of the awning 10, special technical fabric (nylon) is mainly used, and for the outer layer of the awning 10 - "Climate 150". The outer layer of the awning has an orange fluorescent color with a luminance factor of 0.4.

On the awning 10, there are inlets 11 from opposite sides, devices for collecting rainwater 12, ventilation openings 13, a window 14, reflective strips 9, an electric signal fire 15 combined with an internal electric lighting, an antenna outlet 16 and a floating knife 17.

Signal electric fire 15, combined with internal lighting, is designed to facilitate the search for the raft at night and to illuminate the space inside the raft.

The power source is a dry cell battery, which, after opening the raft, ensures normal combustion of a signaling electric fire lamp 15 with a luminous intensity of at least 4.3 cd and an internal lighting lamp with a luminous intensity of at least 0.5 cd for at least 12 hours.

In the daytime, to extend the life of the batteries, the signal electric fire 15 is turned off using manual switches.

The floating knife 17 serves to cut off the starting line if necessary. The knife 17 can also be used to handle the caught fish. For safety reasons, the cutting edge of the knife is recessed relative to the side surface. Knife 17 has a tie bar. The knife 17 is placed outside on the awning at the inlet 11 above the towing device.

A second floating knife (not shown) is located in a knife pocket located on the upper buoyancy chamber 1 inside the raft.

The inlet openings 11 for tightness from the outside or inside are closed by means of an inlet panel with a zipper. Ventilation openings 13 located above the inlet openings 11 serve to exchange air in the under-cover space when the inlet openings 11 are closed.

There are instructional stickers inside the raft to organize and facilitate the correct actions of people in distress.

From the outer and inner sides of the buoyancy chambers 1 are fixed internal rails 18 and - outer rails 19 for those who are fleeing.

At the inlet 11 from the side of the landing platform 5, a ladder 20 is located on the inner side to facilitate entry into the raft.

At the inlet 11, which does not have a landing pad 5, the main ladder 21 is located to facilitate lifting into the raft.

The floating anchor 22 (Fig. 2) is made like a parachute and serves to reduce the speed of the raft drift in the wind. The floating anchor 22 is attached by means of a drektovo, which has two swivels.

When packing the raft, the floating anchor 22 is stacked so that when the raft is filled, it automatically finds itself in the water and the raft is installed with the inlet holes 11 at an angle of 90 ° to the wind direction. Draktov has a line that allows you to turn the raft so that the inlets 11 are located in the direction of the wind.

The floating anchor 22 can be used to maneuver and move the raft over short distances.

Life ring with a floating line 23, 30 m long, is designed to help people in the water away from the raft.

Hand fur is used for pumping buoyancy chambers 1, inflatable rack. The fur with the hose is placed in a container with supply 24.

The supply container 24 and the drinking water container 25 (Fig. 2) are rubberized fabric sleeves that are pulled together

ends with bundles. They are designed to protect emergency supplies, drinking water bags from damage and moisture.

The container with supplies 24 is placed inside the raft and attached to the loops of the inner rail 19.

The scoop 26 with sponges 27 are used to remove water trapped in the raft and are attached to the inner rail 19 at the inlet 11.

Pack with liferaft life saving instructions and liferaft table 28 fixed to inner rail 19.

The instructions give recommendations on providing first aid to victims and on the behavior of people on the raft. The table shows the distress signaling techniques used in maritime practice.

Emergency screw plugs are designed to temporarily seal damage to the raft tissue. The bag of corks 29 is tied to the loop of the inner rail 19.

The cassette is designed for storing a starting line (falin) into it. The starting line in the cassette is stacked according to the scheme (Fig. 3).

The claimed raft ensures that the survivors are kept afloat in sea conditions, protects them from the effects of bad weather and sharp temperature fluctuations. The inflatable life raft can be operated in the temperature range from minus 30 ° С to plus 65 ° С. The design of the life raft ensures its use in any sea conditions afloat for at least 30 days. The raft can withstand multiple jumps on it from a height of 4.5 m from its bottom both with the awning raised and without it. The design of the raft allows it to be towed with a full load of people and supplies at a speed of 3 knots in calm water with one floating anchor 22 lowered into the water.

The raft has supplies of water, food ration, basic necessities to preserve life, signaling equipment, repair materials and reflective strips to facilitate the search for people.

The raft is packed in a container.

Claims (10)

1. Inflatable life raft, including a body of lower and upper buoyancy chambers made in the form of tubular closed shells, a bottom, an inflatable rack, an awning with inlets located on opposite sides, a gas filling system, characterized in that the bottom and the awning are made of two layers, in this case, the bottom contains a lower layer of rubberized material, the upper layer of elastic closed-cell polypropylene laminated with aluminum foil, and the outer and inner layers of the awning are not interconnected. 2. A raft according to claim 1, characterized in that the outer layer of the awning is made of a waterproof membrane material with an oil-water-repellent finish. 3. A raft according to claim 2, characterized in that the outer layer of the awning has an orange fluorescent color with a luminance factor of 0.4. 4. A raft according to claim 1, characterized in that the inner layer of the awning is made on the basis of polyamide fabric. 5. A raft according to claim 1, characterized in that the upper layer of the bottom is made with a thermal conductivity coefficient of not more than 0.0344 W / mK. 6. The raft according to claim 1, characterized in that the inflatable strut is made in conjunction with the upper buoyancy chamber. 7. The raft according to claim 1, characterized in that a signal electric fire is located on the tent, combined with an internal electric lighting. 8. The raft according to claim 7, characterized in that the power source for the signal electric fire is a dry cell battery. 9. The raft according to claim 1, characterized in that the lower buoyancy chamber comprises a non-inflatable landing platform with a ladder at the inlet on one side. 10. The raft according to claim 1, characterized in that the inflatable rack is filled automatically through non-return valves located on the upper buoyancy chamber.

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