RU2079311C1 - Device for fire-rescue operations - Google Patents

Abstract

FIELD: fire-fighting and rescue equipment. SUBSTANCE: device has basket for people connected with pulling rope. One end of rope is fixed to building's roof, other end is connected with winch. Provided are two ropes to control spacious position of basket. These ropes are linked with unit for redistribution of forces between ropes. Winch and rope force redistribution unit are located in basket. Also provided is duplicated rope force redistribution unit mounted on ground surface facility. EFFECT: high efficiency. 2 cl, 1 dwg

Description

 The invention relates to hoisting and transport machinery, and in particular to devices for evacuating people from a burning building and delivery of fire extinguishing means.

 A device for servicing buildings in case of fire [1] comprising a vehicle with outriggers, a telescopic column, a cab with a mechanism for moving it and guide ropes, a swivel console with a trolley on which a cab is suspended, while the upper ends of the guide ropes are mounted on the trolley.

 However, this device has disadvantages that reduce its efficiency. Namely: the bulkiness of the designs of the telescopic column, the rotary console mounted on the vehicle requires a relatively large investment of time for transportation and deployment of the known device for servicing a burning building, which sometimes leads to dire consequences for people in distress.

 Another device is known pneumatic line-thrower "RESQVE ISTA -100" [2] (hereinafter, line-thrower), which is a rescue tool and is designed to feed the rescue end to the evacuation zone, which has a guide traction rope, one end fixed in the right place, and the other on a ground stationary object.

 However, the known line thrower has disadvantages that reduce its efficiency. For example, this device is limited to use when the building height is not higher than 60-80 m; its design does not provide for the simultaneous movement of more than one person, and the principle of operation does not allow serving more than one evacuation zone.

 The closest device to the solution we offer is a cable elevator for facades [3] Here, a device for performing fire and rescue operations contains a basket for accommodating people connected to a traction rope, one end of which is used to fasten on the roof of the building, and the other is connected by a winch, and two ropes controlling its spatial position associated with the force redistribution unit between them.

 Among the specific disadvantages of this device is the fact that it will allow serving no more than one evacuation zone and requires unconditional readiness to connect the traction rope to auxiliary elements permanently located in the building.

 We set the task of improving the tactical and technical parameters of the device for performing fire and rescue operations, increasing the efficiency of the device.

 This problem is solved due to the fact that the winch and the power redistribution unit between the control ropes are installed in the basket of the device, which is equipped with a redundant force redistribution unit between the control ropes mounted on a ground vehicle. In addition, the traction rope is fixed to the roof of the building by means of a line thrower.

 The drawing shows in static time the moment of inspection of the building at a given height H and a safe distance B using the proposed device, which consists of a basket 1. In the basket 1 there is a winch with a drum 2, on which the traction rope 3. The traction rope 3 is fixed at one end to desired location. Here, in basket 1, there is a block 5 of the redistribution of control efforts between the control ropes 4.

 To increase the reliability and safety of the device on a ground stationary object, for example, on a vehicle 6, a redundant control unit 5 is placed so that the control ropes 4 are connected at their ends to block 5, and others to the backup block 5.

 Known elements of the line thrower 7 are also located on the vehicle 6.

 The device operates as follows. A "blank" with an attached end of the traction rope 3 is inserted into the line-feeder 7. The other end of the traction rope 3 is wound on the drum of the winch 2 located together with the basket 1 on the vehicle. The line-thrower 7 is directed in the required direction and a shot is fired (dashed-dotted line in the drawing). During the flight of the "blanks" the traction rope 3 is wound from the drum of the winch 2. As a result, the end of the traction rope 3 falls into the desired place, for example, flies through the building and is fixed. (In Fig. The dashed line shows the state of readiness of the basket 1 for lifting).

 The combat crew of firefighters takes up places in basket 1, a winch 2 is turned on, on which a traction rope 3 is wound, and simultaneously using block 5 (or a backup block 5), the control forces are redistributed between the control ropes 4 and the basket 1 is lifted to a predetermined height H and safety distance B. The device works similarly when lowering the basket 1.

 Thus, the task of evacuating people from a burning building and delivering fire extinguishing means with improved tactical and technical indicators to ensure the effectiveness of work on fires is solved.

Claims (3)

 1. A device for performing fire-rescue operations, comprising a basket for accommodating people connected to a traction rope, one end of which is used to fasten on the roof of the building, and the other is connected to the winch, and two ropes controlling its spatial position associated with the force redistribution unit between them, characterized in that the winch and the redistribution unit between the control ropes are installed in the basket.  2. The device according to claim 1, characterized in that it is equipped with a redundant force redistribution unit between control ropes mounted on a ground vehicle.  3. The device according to claim 1, characterized in that the traction rope is fixed to the roof of the building by means of a line thrower.