RU26045U1 - INFLATABLE RESCUE RAFT - Google Patents

Description

2002117758

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INFLATABLE RESCUE RAFT

The proposal is limited to collective rescue equipment for personnel deployed mainly on floating vehicles, such as h-boats and submarines.

An inflatable liferaft is known, which is equipped with a floating handrail in the form of a closed network to facilitate the landing of those rescued from water and the turning drive of this floating handrail (RU No. 2092375 S1.1997g).

Also known is an inflatable liferaft, made in the form of toroidal chambers stacked on top of each other, separated by flexible material, about the railing bottom of the raft (US No. 2784425.1957 g).

A liferaft is also known, consisting of elastic buoyancy chambers filled with gas, an awning and awning racks, a ballast compartment, a bottom located by buoyancy chambers, with an epgome the lower and upper parts of the sub space have a symmetrical design with respect to the bottom of the raft, awning racks covering the outside buoyancy chambers, vertically in bushings, mounted on the outer part of the buoyancy chambers, forming one part of the subtent volume to accommodate people, and the other part, divided by the bottom of the raft to create a llastnogo compartment (RU №96110821 A, 1998 g).

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The closest known one is an inflatable life preserver containing a body of two buoyancy chambers made in the form of closed tubular shells and an inflatable bottom between them, tents with entrances, {not laid on opposite sides of the bottom, racks for supporting tents mounted on buoyancy chambers, and also a gas-filling system, while the struts of the volcanoes 1Y are inflatable and are located in mutually perpendicular intersecting planes around the perimeter of the isosceles trapezoid in each of these ducts, while the entrances are ying with schtorkami. In addition, the entrances of the awnings are located symmetrically relative to the bottom and are equipped with a device for the simultaneous opening of the shutters, made in the form of a line connected at its ends with the corresponding shutters of the symmetrically located inputs (RU No. 2079249 C1.1997 g).

Known liferafts do not adequately ensure their deployment efficiency and operational reliability during the extreme period, do not have reliable thermal insulation of the tent area when the latter is cooled with water from the bottom of the raft. In addition, all known constructions of inflatable rafts have the disadvantage of insufficiently effective ability to completely remove air (other gas) from the chambers of the plow after the end of its operation, which, when reused, the board in extreme conditions (in particular, with a sharp drop in pressure outside cameras) leads to the formation of

The most vivid of the known is an inflatable liferaft, containing a body of two buoyancy chambers made in the form of closed tubular shells and an inflatable bottom between them, cantilevers with entrances located on opposite sides of the bottom, racks for supporting tents installed on floating chambers, and also a gas filling system, while the racks are inflatable and are located in mutually perpendicular intersecting planes around the perimeter of an isosceles trapezoid in each of these planes, while Nena with schtorkami. In addition, the entrances of the awnings are located symmetrically relative to the bottom and are equipped with a device for the simultaneous opening of the curtains, made in the form of a line connected at its ends with the corresponding curtains of the symmetrically located inputs (RU No. 2079249 C1.1997 g).

Known liferafts do not adequately ensure their deployment and operational reliability in an extreme period, do not have reliable thermal insulation of the sub-gang space when the latter is cooled by water from the bottom of the raft. In addition, all known constructions of inflatable rafts have a drawback that they cannot be completely removed. air (go other gas) from the chambers of the raft after the end of its operation, which when reusing the raft in extreme conditions s (in particular, with a sharp drop of pressure chambers) results: the formation

vyoushnyh (gas) puzfei in the shell and reduces the efficiency of the use of the raft

The objective of this utility model is to increase the efficiency of deployment and addition of the raft and ensure operational reliability in an extreme period.

This is achieved by the fact that the inflatable liferaft contains a hull of two buoyancy chambers placed on top of one another, having a plan view of a regular polygon, each of which ensures that the number of people calculated for this raft is kept afloat and is made in the form of a tubular shell made of rubberized fabric, and the bottom between them with an inflatable pillow along the inner perimeter of the chamber, and a centered ring located on the bottom center of the bottom, over which an awning with an inflatable support is placed, having an inlet and an outlet located from its opposite sides, as well as the gas system of the chambers. In addition, an inflatable ramp can be located at the entrance of the raft, consisting, for reliable operation, of at least two sections, which, to ensure its guaranteed buoyancy, are pneumatically connected to different buoyancy chambers through a non-return valve. Further, between the sections of the inflatable ramp a tray is placed, made of a cloth, which serves to facilitate the entry (crawl) into the raft, as well as pulling victims from it into the water. Between the buoyancy chambers the halyard is fixed.

HanpHMq), for towing, on the free end of which a link with tensile strength of not more than 1.5 kN is secured. The design of the tent's inflatable support provides for struts of tubular chambers pneumatically combined in their lower part into a single cavity with an annular base connected to an autonomous basin filling system and designed to be mounted on the upper of the buoyancy chambers, while the sewing is equipped with means for attaching the base ring to the said chamber buoyancy. At the same time, the said racks are pneumatically united by an annular base intended for 1 fastening on the upper of the buoyancy chambers, which are made in the form of quick-release fasteners in the form of, for example, burdock zippers. In the internal cavities of the buoyancy chambers, it is advisable to fix the surface of the loose structure — having a C1 foot of fibers of not more than 50 per 1 m, placing this beginning in the zone of the gas inlet / outlet opening of the underfill system and further along the axis of each of the aforementioned buoyancy chambers.

The proposed technical solution is illustrated by drawings, where:

Fig. 1 shows a frontal center in front of an inflatable liferaft in a deployed state;

figure 2 is the same, a top view;

Fig. 3 is a view of the sewing along arrow A in Fig. 2 (from the side of the ramp);

An inflatable liferaft made in accordance with the claimed 11 utility model contains a housing of one mounted on one another, dvzos

KaMq) 1 and 2 of buoyancy, each in the form of a regular polygon in plan (figure 2). Each of chambers 1 or 2 independently ensures that the number of people calculated for a given raft is kept afloat. Chambers 1 and 2 are made in the form of a tubular shell made of rubberized fabric, from which the remaining (indicated below) inflatable elements of the raft are also made, as well as the bottom 3 between the chambers, which has an inflatable pillow 4 along the inner perimeter of the chambers and a similar pillow located in the center of the bottom 3 in the form of a ring (not indicated in the drawing), intended for thermal insulation of the tent area from cold water. To fill all the chambers and pads, preferably with carbon dioxide, a chamber gas filling system (not shown) is used. Above the bottom 3 there is an orientable tent 5 with an inflatable support 6, consisting of uprights and an annular base (not indicated in the drawing), having inputs (outputs) 7 (Fig. 1,2), preferably located on its opposite sides. At each entrance 7 there is an inflatable ramp 8, consisting, for reliable operation, of at least two sections 9 (Fig. 3), which, to ensure its guaranteed buoyancy, are pneumatically connected to different floating chambers 1 or 2 through a non-return valve 10. In the middle part of the ramp between its sections a tray 11 is fixed, made of a cloth. Between the buoyancy chambers 1 and 2 is fixed, used, for example, for towing, a halyard 12 (figL), on the free end of which a link is fixed

13 with tensile strength not more than 1.5 kN to ensure efficiency

and the safety of its use in an emergency. If it is necessary to save the number of people in excess of the number calculated for a given raft, the rails fixed along the perimeter of the raft (not shown) could be used. In the internal cavities of all the buoyancy chambers, a well-arranged textile cord 14 (FIG. 3) is fixed, having a C1 fiber bundle of not more than 50 per 1 m, which makes it possible to obtain a cord structure of cord and provides y; The improvement of the conditions for the removal of air (or carbon dioxide) residues from the tfi layer of the shell increases the compactness of the shell. The end of the said cord is placed in the area of the hole (not shown) for gas inlet / outlet of the gas filling system along the internal cavity of each of these buoyancy chambers. In the folded position, the awning 5 together with the support 6 is placed between the buoyancy chambers 1, 2 and is fixed in this position, and in the working position the tent is fastened with its annular base to the buoyancy chambers using quick-release fasteners 15 (Fig. 1,2), for example, crutches on a flexible leash or burdock fasteners (type). The awning 5 of the raft is equipped with an individual gas system of the inflatable support 6 (not shown). An inflatable liferaft is designed for emergency deployment when saving the estimated number of up to 20 people of the personnel of a watercraft, for example, a submarine. The gas filling system of chambers 1 and 2 provides emergency filling of their volume. Moreover, through

the check valve 10 is also filled with gas by the cavity of the sections 9 of the ramp 8, which is used to ensure the personnel rise from the water and then move along the tray 11 under the tenge 5 through the entrances to it 7.

In an extreme situation, when manually working out the gas filling system of the tent support, the last one of the team members turns around, navigates in the right direction and pushes on the raft, forming a small shape with two entrances opposite each of the ramps 8. Then, the people in the raft attach the mentioned the roof to the upper buoyancy chamber by means of quick-release fasteners, for example, burdock zippers 15 or fasteners in the form of crutches on a flexible leash. The presence of inflatable pillows on the bottom of the raft provides thermal insulation of team members in the tent area from cooling and thereby prolongs the permissible (safe without overcooling) period of people on the raft. After the operation of the raft is completed, team members sag the raft shell, depressurize its internal cavities, and tightly fold the shell, folding it along the placement of psur 14 in the buoyancy chambers. The resulting package is put into packaging.

The inflatable raft is provided with the necessary emergency supply of provisions, including fresh water, a set of medical, technical and signaling devices.

Claims (9)

1. An inflatable liferaft containing a hull of two buoyancy chambers placed on top of each other in the form of a regular polygon in plan, each of which ensures the number of people calculated for a given raft afloat and is made in the form of a tubular shell made of rubberized fabric, and the bottom between them with an inflatable pillow along the inner perimeter of the chamber and an inflatable ring located in the center of the bottom, over which an awning with an orientable inflatable support is placed, having an entrance and an exit, preferably located with its opposite sides, as well as a gas system for chambers.  2. The raft according to claim 1, in which at its entrance and / or exit there is a ramp consisting of at least two inflatable sections.  3. The raft according to claim 2, in which the inflatable sections of the ramp are pneumatically connected to different buoyancy chambers of the raft through a non-return valve.  4. The raft according to claim 2 or 3, in which between the inflatable sections of the ramp is placed a tray made of a cloth.  5. The raft according to claim 1, in which a halyard having a link with a breaking strength of not more than 1.5 kN is fixed between the buoyancy chambers.  6. The raft according to claim 1, in which the inflatable tent support is made in the form of symmetrically arranged racks of tubular chambers, pneumatically combined in its lower part into a single chamber with an annular base connected to an autonomous gas-filling system of the tent support and designed to be mounted on the upper of the chambers buoyancy, while the raft is equipped with means for attaching the tent to the aforementioned buoyancy chamber.  7. The raft according to claim 1, in which the means of fastening the tent to the upper buoyancy chamber of the raft are made in the form of quick-release fasteners in the form of, for example, burdock zippers.  8. The raft according to claim 1, in which in the cavity of each buoyancy chamber, pillows, tent supports and ramps a cord of predominantly textile material is fixed with the number of fiber strands per 1 m of its length not more than 50. 9. The raft according to claim 1 or 8, in which said cord is placed along the axis of the cavity of each of the buoyancy chambers, wherein one end of said cord is placed in the zone of the gas inlet / outlet of the gas filling system of the buoyancy chambers.