DEVICE FOR DELIVERY OF FIRE EXTINGUISHING AGENTS FROM AN UNMANNED AERIAL VEHICLE

Abstract

The utility model relates to means for delivering fire extinguishing agent to extinguish a fire using an unmanned aerial vehicle (UAV) for delivery to the source of the fire.A device for delivering fire extinguishing agents from an unmanned aerial vehicle includes a frame adapted for attachment to a helicopter-type UAV, a dry pipe, and a guy rope. The frame contains four horizontal supports connected to a locking sleeve into which an L-shaped dry pipe is pressed, and connected in pairs by cross beams. The fastening tips of each support have openings and are adapted for axial movement and position fixation. The inlet end of the dry pipe is oriented downward in the operating position and is equipped with a coupling head capable of securing a fire hose. Adjustable guy ropes are attached to the outlet end of the dry pipe and are adapted for attachment to the UAV frame. The outlet end of the dry pipe is equipped with a coupling head capable of securing a fire nozzle nozzle and extends beyond the projection of the air jet. The dry pipe and frame are made of a composite material.The outlet end of the dry pipe is equipped with a coupling head capable of attaching a fire nozzle, providing a compact stream, a spray stream, or a combination with switchable modes, or a fire nozzle with a foam generator. The technical result: a lightweight, reliable, and quickly assembled device for the precise delivery of extinguishing agent to a fire at height, universal for various UAVs and fire extinguishing agents. 2 reference digits, 2 figs.

Description

[0001] The utility model relates to means for delivering fire extinguishing agent to extinguish a fire using an unmanned aerial vehicle (UAV) for delivery to the source of the fire.

[0002] The “Device for extinguishing fire using an unmanned aerial vehicle” is known (patent RU 229600, IPC B64U 101 / 45 (2023.01) B64D 1 / 16 (2006.01), which includes a device for extinguishing fire using a UAV, made with the possibility of being mounted on a helicopter-type UAV, contains a frame in the form of a framework of four inclined supports, fastened with horizontal strips with a horizontal perforated plate on top for fastening to the frame of the UAV, equipped with a replaceable powder fire extinguishing module fixed below on the horizontal perforated plate with an electrically controlled launching device connected to a launch control controller made with the possibility of being connected to the flight controller of the UAV, the outlet nozzle of the powder fire extinguishing module is provided with a flexible hose with a barrel for local delivery of a fire extinguishing agent, which is made with the possibility of changing the length, the barrel is provided with means for fastening to the frame of the UAV in such a way that the tip of the barrel extends beyond the projection of the jet stream of air created by the propellers of the UAV, and one of the inclined supports is provided with a means for fixing the flexible hose.The frame is made of metal. The inclined supports and horizontal bars are made of composite material, and the horizontal perforated plate is made of metal. The perforated plate has 5 mm diameter holes staggered at 6 mm intervals. The nozzle for localized delivery of extinguishing agent is telescopic.

[0003] The disadvantage of this device is the limited amount of extinguishing agent and limited extinguishing time.

[0004] A “Device for extinguishing fire in high-rise buildings using a helicopter” is known (patent RU 2289531, IPC A62C 31 / 00, B64D 1 / 16, 2006), which includes tanks with a fire extinguishing agent, a flexible pipeline for supplying a fire extinguishing agent, an external rod, an emergency disconnection unit, a nozzle remotely controlled in a vertical plane and is equipped with a remotely controlled lock fixed to the helicopter, a stand fixed on an external cargo suspension to the remotely controlled lock, and a shut-off valve.

[0005] The disadvantage of this device is the complexity of its design, control, difficulty of maneuvering to accurately deliver the extinguishing agent to the combustion area, the limited amount of extinguishing agent, as well as the need for the fire brigade to have a helicopter and maintain it.

[0006] A device for extinguishing fires in high-rise buildings is known (patent RU 2711267, "Device and method for extinguishing fires in high-rise buildings and fire-explosion hazardous technological installations", IPC A62C 27 / 00, B64B 1 / 16, 2020), including a flexible fire suction hose for drawing water from an external fire water supply through a fire hydrant, a fire engine equipped with a high-pressure pump, fire flexible pressure hoses, including a high-pressure fire hose, a fire nozzle with a nozzle, n unmanned aerial vehicles with fire hoses attached to them of a length corresponding to the height of the fire source of the building, an automated control system for unmanned aerial vehicles and a pump, a metal protective casing connected to an electric drive are installed in the upper part of the fire engine.

[0007] The disadvantage of this device is the fixed attachment of fire hoses and water pumping equipment to unmanned aerial vehicles, low efficiency of using UAVs, limited to the possibility of using UAVs only for extinguishing fires in high-rise buildings, and limited possibilities of using fire extinguishing agents.

[0008] The technical result consists in creating a lightweight and reliable device that is universal for various UAVs and fire extinguishing agents, quickly assembled and designed for the precise delivery of fire extinguishing agent to the source of a fire at height.

[0009] The technical result is achieved in that the device for delivering fire extinguishing agents from an unmanned aerial vehicle includes a frame configured to be attached to a helicopter-type UAV, a dry pipe and a guy rope. The frame contains four horizontal supports connected to a locking sleeve into which an L-shaped dry pipe is pressed and connected in pairs by cross beams. The fastening tips of each support have openings and are configured to allow axial movement and position fixation. The inlet end of the dry pipe is oriented downward in the working position, equipped with a coupling head capable of securing a fire hose. Adjustable guy ropes configured to be attached to the UAV frame are fixed to the outlet end of the dry pipe. The outlet end of the dry pipe is equipped with a coupling head capable of securing a fire nozzle nozzle and extends beyond the projection of the air jet. The dry pipe and frame are made of a composite material.The outlet end of the dry pipe is equipped with a connecting head with the ability to fix a fire nozzle, which provides a compact jet or a spray jet, or a combination with switching modes, or a fire nozzle with a foam generator.

[0010] The essence of the utility model is explained by graphic materials. Fig. 1 shows an image of the frame of the claimed device for delivering fire extinguishing agents from a UAV, and Fig. 2 shows an image of the device mounted on the UAV in the operating position.

[0011] A device for delivering fire extinguishing agents from an unmanned aerial vehicle includes a frame 1 configured to be attached to a helicopter-type UAV, a dry pipe 2, and a guy wire 3. The frame comprises four horizontal supports 4 connected to a locking sleeve 5, into which an L-shaped dry pipe 2 is pressed, and paired with crossbars 6, which ensures the lightness and reliability of the structure. The fastening tips 7 of each support 4 have openings 8 and are configured to be axially displaceable and lock in position, for example, by couplings 9. This allows the claimed device to be universally applicable to various UAVs and increases the reliability of its attachment to the UAV frame. The inlet end of the dry pipe 2 is oriented downwards in the operating position and is equipped with a coupling head 10 capable of securing a fire hose 11.This ensures a connection to a ground-based fire extinguishing agent delivery station (generator or fire engine) for continuous water / foam delivery during extended fire operations, eliminating kinks in the fire hose. Adjustable guy wires 3 are attached to the outlet end of the dry pipe 2 and can be attached to the UAV frame 12. This secures the outlet end of the dry pipe 2, preventing vibrations and improving the precision of extinguishing agent delivery. The outlet end of the dry pipe 2 is equipped with a coupling head 13 capable of securing the nozzle of the fire nozzle 14 and extends beyond the projection of the air jet, improving the precision of extinguishing agent delivery. The dry pipe 2 and frame 1 of the claimed device are made of a composite material, such as carbon fiber reinforced plastic (CFRP), fiberglass, etc., ensuring a reliable and lightweight design.When operating the claimed device, it is possible to use replaceable nozzles of the fire nozzle, for example, to produce a compact stream, a spray stream, combined nozzles with switching modes, foam generators, which ensures versatility in the use of various fire extinguishing agents, expands the functionality of the claimed device, and increases the efficiency of its use for extinguishing fires at height.

[0012] The device for delivering fire extinguishing agents from an unmanned aerial vehicle operates as follows. Firefighters widely use UAVs for reconnaissance, monitoring, searching for people and rescue, and delivering cargo. The claimed device allows using UAVs as a means of delivering fire extinguishing agents to the source of a fire. The device for delivering fire extinguishing agents is fixed with fasteners, such as bolts (not shown in the drawing), through openings 8 to the standard UAV frame from below. Dry pipe 2 is secured coaxially with the UAV camera lens to its frame such that the outlet end of dry pipe 2 extends beyond the projection of the air jet created by UAV propellers 15. Adjustable guy wires 3 secure dry pipe 2 to UAV frame 12. Coupling head 13 secures the required nozzle of fire nozzle 14. Coupling head 10 secures fire hose 11.From the ground control station, the operator transmits commands to the UAV's flight controller, which controls the aircraft's movement and attitude. The UAV is brought close to the fire, with the nozzle of the fire nozzle 14 aimed at it. Fire extinguishing agents, such as those from a fire truck, are transported through flexible fire hoses 11 and delivered horizontally through the dry pipe 2 through the nozzle of the fire nozzle 14 into the fire. If necessary, the device can be easily removed from the UAV, allowing it to be used for other purposes and increasing its efficiency.

[0013] The manufactured experimental prototype of the proposed device, based on research tests, demonstrated the operability and effectiveness of the proposed design. This device for delivering fire extinguishing agents from an unmanned aerial vehicle is universally compatible with various UAVs and fire extinguishing agents. It features a lightweight and reliable design, ensures quick installation on the UAV frame, and precise delivery of extinguishing agent to the source of a fire at altitude.

Claims

1. A device for delivering fire extinguishing agents from an unmanned aerial vehicle (UAV), characterized in that it includes a frame configured to be attached to a helicopter-type UAV, a dry pipe and a guy rope, the frame contains four horizontal supports connected to a locking sleeve into which an L-shaped dry pipe is pressed, and connected in pairs by cross beams, the fastening tips of each support have openings and are configured to be axially displaced and to fix the position, the inlet end of the dry pipe is oriented downwards in the working position, is provided with a connecting head with the ability to fix a fire hose, adjustable guy ropes are fixed to the outlet end of the dry pipe, configured to be attached to the frame of the UAV, the outlet end of the dry pipe is provided with a connecting head with the ability to fix the nozzle of a fire nozzle and extends beyond the projection of the air jet.

2. A device for delivering fire extinguishing agents from an unmanned aerial vehicle according to paragraph 1, characterized in that the dry pipe and frame are made of a composite material.

3. A device for delivering fire extinguishing agents from an unmanned aerial vehicle according to paragraph 1, characterized in that the outlet end of the dry pipe is equipped with a connecting head with the possibility of fixing a fire nozzle that provides a compact stream or a sprayed stream, or a combined one with switching modes, or a fire nozzle with a foam generator.

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