RU2329838C2 - Suspended platform for evacuation from multistorey buildings - Google Patents

Abstract

FIELD: construction, life saving equipment.

SUBSTANCE: suspended platform for evacuation from multistorey buildings consists of a working platform with boards and is equipped with a telescopic crossover trap with folding boards. The working platform board situated above the place of trap telescoping is arranged with a sliding door to provide an access to the telescopic crossover trap. The trap is fixed with a metal bow with a crossbar and has a narrowing and a locking pin in the shape of a hook at its end. The technic task of the invention is safety control of people evacuation from multistorey buildings during a fire and a decrease of the time period required for delivery and performance of fire fighting and rescue works. Any floor is available for the saving platform all over a high building because the platform is hung by means of the hooks and is lowered by means of cable ropes from the roof down to the window opening or to the balcony. Unlike ground means of evacuation several suspended saving platform units can be installed and function at the same time on the roof at a small distance from each other. Fire extinguishing can be performed from the same platform following evacuation of people.

EFFECT: safety control of people evacuation from high buildingds during a fire and decrease of the time period required for delivery and performance of fire fighting and rescue works.

2 dwg

Description

The invention relates to devices for evacuating people from high-rise buildings during a fire or other emergency situations using rescue lifts.

A well-known automobile fire escape containing a vehicle with outriggers, a lifting and turning device mounted on it, a set of telescopic sections in the form of ladders with a telescoping mechanism mounted on a lifting and turning device, and a device for conducting fire rescue operations on high-rise buildings and structures ( see RF patent No. 2263625, IPC B66F 11/04; A62B 1/02).

The main disadvantages of the known device are a long time and the practical difficulty of putting into working position, as well as an insufficient level of the ability to raise fire-fighting equipment to the desired height.

A device for evacuating from high-rise buildings and extinguishing a fire is known, which consists of a turntable located on a vehicle on which sealed hollow sections of a cylindrical shape are installed, which are a folding inverted cup, the upper section of which is made in the form of a rescue cabin, equipped with a folding ladder with a latch in the form of a closed oval gutter, along the lateral sides of which there are hoisting paths, the bottom of the rescue cabin and the connection platform us rope-winch (see. № RF Patent 2126281, cl. A62V 1/20).

The disadvantages of this device are the complexity of the design, significant time spent on deployment and limited ability to lift to the required height.

Closest to the technical nature of the claimed invention is a lifting platform for repair and installation works, comprising a working platform with winches mounted on it with working ropes, brackets with blocks fixed to the platform and deflecting blocks, through each of which a corresponding working rope is passed, one of which their end is fixed to the platform, and the other end is passed through the bracket blocks and its end is fixed on the axis of one of the blocks (see AS No. 1293301, class E04G 3/16, 3/10).

The disadvantages of this lifting platform is that it cannot be used to evacuate people from the windows of a burning multi-storey building due to the lack of a retractable ladder providing a safe transition for people to the rescue platform.

An object of the invention is to reduce the time for delivery and carrying out fire rescue operations, ensuring the safety of evacuating people from high-rise buildings in case of fire.

This object is ensured by the fact that the suspension platform for evacuation from multi-storey buildings, containing a working platform with sides, characterized in that it is equipped with a bottom located under the working platform, in which a mechanically retractable transitional ladder with folding sides fixed by a metal arch is installed on roller guides with a crossbeam and having at the end a narrowing and a latch in the form of a hook, and one of the sides is made with a sliding door.

Due to the fact that the platform is equipped with a bottom located under the working platform, in which a mechanically retractable transitional ladder with folding sides is made on roller guides, the compact design, quick and reliable access to the windows and balconies of the burning building is ensured.

The implementation of the ladder with folding sides ensures the safety of people when moving from a burning building to the platform.

Fastening the folding sides with a metal bow and crossbar ensures the strength and stability of the structure.

The execution of one of the sides with a sliding door provides quick access to the transitional ladder.

Due to the fact that the gangway has a narrowing at the end, it freely enters the window opening of any width. A hook-shaped latch secures the gangway for evacuation.

The invention is illustrated by drawings, where figure 1 shows a General view of the suspension platform inoperative.

Figure 2 - General view of the suspension platform in working condition.

The platform consists of a working platform 1 with sides 2, where one of the sides 2 is made with a sliding door 3, a retractable transition ladder 4 with folding sides 5, fixed with a metal bow 12 with a crossbeam 13 and a latch 9 in the form of a hook.

The transitional ladder 4, having a narrowing 8 at the end, is removed along the roller guides 7 in the bottom of the working platform 6. The suspension platform is connected via hooks 10 and cable 11 to a lifting device located on the roof of a multi-storey building.

The suspension platform is as follows.

On alarm, the helicopter delivers a wheeled lifting device, for example, a Pioneer crane with a lifting capacity of 1000 kg, a lifting height of 70 m and a suspension platform to the roof of a burning building. The suspension platform is hung on hooks 10 and lowered by cables 11 to a window opening or balcony, from which people must be evacuated.

The level of the working platform 1 should be on the same level with the window sill of the window from which people need to be evacuated. Then, from the bottom 6, located under the work platform 1, the transition ladder 4 with folding sides 5 is mechanically extended, which are fixed with a metal arch 12 with the crossbar 13. The transition ladder 4, having a narrowing 8 at the end, enters the window opening and is fixed in the form of a hook 9 behind the windowsill. The sliding door 3, made on one of the sides 2 and working on the principle of a sliding wardrobe door, opens, allowing access to the transition ladder 4. Next, the professional rescuer lifts the folding sides 5 and fixes them with a metal handle 12 with a crossbeam 13, after which the transition ladder 4 acquires a rigid, stable construction. Evacuated people on a rigid stable ladder 4 go to the working platform 1 of the suspension platform. Then a professional lifeguard disassembles the retractable structure in the reverse order from the assembly. The sides 5 are folded, the transitional ladder 4 slides in the bottom 6 of the working platform 1 and is fixed with a pin retainer. Victims are delivered to a safe place (on the roof of the building or on the ground). Fire extinguishing is carried out from the same suspension platform after the evacuation of people.

A rescue platform is available on any floor around the perimeter of a high-rise building.

Unlike ground-based evacuation equipment, suspended rescue platforms can be installed and operate several units simultaneously at a short distance from each other to more quickly eliminate fires and evacuate people, which ground fire-fighting equipment currently used cannot afford.

Claims (10)

1. Suspension platform for evacuation from multi-storey buildings, containing a working platform with sides, characterized in that the platform is equipped with a sliding transition ladder with folding sides, and the side of the working platform located above the place of extension of the ladder is configured to provide access to the sliding transition ladder. 2. The suspension platform according to claim 1, characterized in that the retractable transition ladder is installed under the working platform in the bottom made for it. 3. The suspension platform according to claim 1, characterized in that the retractable transitional ladder with folding sides extends on roller guides. 4. The suspension platform according to claim 1, characterized in that the transitional ladder with folding sides is equipped with a metal handle and a crossbeam. 5. The suspension platform according to claim 1, characterized in that the sliding transition ladder has a narrowing at the end. 6. The suspension platform according to claim 1, characterized in that the sliding transition ladder is equipped with a latch, for example in the form of a hook. 7. The suspension platform according to claim 1, characterized in that the board of the working platform located above the extension of the ladder is made with a sliding door. 8. The suspension platform according to claim 1, characterized in that the device for lifting and lowering the platform and moving around the perimeter of the building is a wheeled crane, for example, a Pioneer crane with a lifting capacity of one ton or more. 9. The suspension platform according to claim 1, characterized in that the delivery of the suspension platform, the Pioneer crane on a wheeled drive and maintenance personnel to the roof of a burning building produces a helicopter. 10. The suspension platform according to claim 1, characterized in that it serves as a platform for extinguishing fire.

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