Non-pressure storage type forest fire extinguishing device

Abstract

The utility model belongs to the technical field of dry powder fire extinguishing equipment, and relates to a non-pressure storage type forest fire extinguishing device for unmanned aerial vehicle forest fire extinguishing, which comprises a shell, an unmanned aerial vehicle detacher and a device lifting hook are arranged at the top of the shell, and a control integrator is arranged at the upper part of the shell. The upper part of the control integrator is provided with a control integrator power supply switch, a detection delayer, a signal line socket and a battery switch socket, and the lower part of the control integrator is connected with a solid-gas converter; a fire extinguishing agent is arranged in the closed cavity of the shell, and the solid-gas converter is embedded in the fire extinguishing agent; the signal wire socket is matched with a signal wire plug with a stay wire, and the battery switch socket is matched with a battery switch plug. The impulse obtained by the fire extinguishing agent of the fire extinguishing device is larger and is easy to diffuse; the fire extinguishing device is safer; an existing forest fire extinguishing device is started to work through two times of programs after being mounted, and the forest fire extinguishing device needs to be started to work through three times of programs, so that the reliability is higher.

Description

Technical Field

[0001] This utility model belongs to the technical field of dry powder fire extinguishing equipment, and relates to a non-pressurized forest fire extinguishing device for use in unmanned aerial vehicle (UAV) forest fire extinguishing. Background Technology

[0002] With the development of the low-altitude economy and the widespread application of drones, drones equipped with non-pressurized forest fire extinguishing devices (hereinafter referred to as forest fire extinguishing devices) play a crucial role in the early detection, early handling, and early extinguishing of early forest fires, thus preventing major forest fires.

[0003] Currently, the typical structure of forest fire extinguishing devices used by drones to extinguish forest fires is shown in the attached figure. Figure 1 The main components include: 1. UAV unhooking device, 2. Device hook, 3. Detection delay device, 4. Explosive wire socket, 5. Control integrator, 6. Control integrator power supply switch, 7. Explosive unit, 8. Fire extinguishing agent, 9. Shell, etc.

[0004] The process before the forest fire extinguishing device is as follows: set the parameters of the forest fire extinguishing device detection delay device 3, the drone release device 1 hangs the forest fire extinguishing device through the device hook 2, insert the blasting wire plug (accessory with pull wire) into the blasting wire socket 4 and fix the pull wire to the drone frame, turn on the power switch 6 of the control integrator, and the drone carrying the forest fire extinguishing device takes off and reaches the predetermined altitude above the forest fire.

[0005] Dropping process: The drone release device 1 releases, the forest fire extinguishing device falls under its own weight, the blasting wire plug is pulled away from the blasting wire socket 4 by the pull wire under the weight of the device, the detection delay device 3 starts to work to detect or time, the forest fire extinguishing device falls to the predetermined height or delays to the set time, the control integrator 5 supplies power to the blasting unit 7 to detonate, the shell 9 breaks under the impact force, and the extinguishing agent 8 is thrown into the fire area under the impact force to extinguish the fire.

[0006] Current unmanned aerial vehicles (UAVs) equipped with non-pressurized forest fire suppression systems mainly suffer from the following prominent problems:

[0007] Firstly, according to the provisions of XF 602-2013 dry powder fire extinguishing devices and the law of conservation of energy, non-pressurized fire extinguishing devices are gas-driven; the extinguishing agent particles are small and lightweight (such as ABC dry powder), the particles gain less energy, and the extinguishing agent particles cannot diffuse well. Using blasting units to drive the diffusion of extinguishing agents is not very effective.

[0008] Secondly, the blasting unit of the forest fire extinguishing device uses an electric ignition head, with a reliable starting current ≥0.6A and a safe non-starting current ≤150mA. Since the forest fire extinguishing device is carried by a drone, this special device is prone to generating electromagnetic fields, causing the control integrator of the forest fire extinguishing device to generate a micro current. When the current exceeds the safe non-starting current of 150mA, the forest fire extinguishing device is prone to false activation.

[0009] Third, during the production, transportation, storage and use of forest fire extinguishing equipment, the power supply switch of the control integrator is very easy to be accidentally turned on. If the blasting wire plug is accidentally touched and disconnected, the blasting unit will be activated, causing injury to the operator and posing a safety hazard. Utility Model Content

[0010] The purpose of this invention is to address the aforementioned problems by proposing a non-pressurized forest fire extinguishing device for use on unmanned aerial vehicles (UAVs).

[0011] The main technical solution of this utility model is a non-pressurized forest fire extinguishing device, characterized in that it includes a shell, the top of which is provided with a drone release device and a device hook, the upper part of which is provided with a control integrator, the upper part of which is provided with a control integrator power supply switch, a detection delay device, a signal line socket and a battery switch socket, and the lower part of the control integrator is connected to a solid-gas converter; the sealed cavity of the shell contains a fire extinguishing agent, and the solid-gas converter is buried in the fire extinguishing agent; the signal line socket is equipped with a signal line plug with a pull cord, and the battery switch socket is equipped with a battery switch plug.

[0012] Preferably, the control integrator is powered by a built-in battery, and the power supply is controlled by a battery switch plug and a battery switch socket, and a power supply switch for the control integrator.

[0013] Preferably, the activation of the detection delay device is controlled by a signal line socket and a signal line plug.

[0014] Preferably, the start-up of the solid-gas converter is controlled by a detection delay unit and a control integrator.

[0015] Preferably, the solid-gas converter includes a housing, which houses an ignition device and a solid gas-generating agent, and the housing is provided with a dense array of exhaust holes.

[0016] More preferably, the diameter of the exhaust port is 3.5 mm.

[0017] More preferably, the ignition device uses an electric starter with a reliable starting current ≥1.2A and a safe non-starting current ≤400mA.

[0018] More preferably, the electric starter is a commercially available RY3006 model.

[0019] The fire extinguishing method of the non-pressurized forest fire extinguishing device of this utility model generally includes the following process: (1) Set the delay parameters of the detection delay device (set the detector delay time to 2s or 3s), hang the forest fire extinguishing device on the drone through the device hook and the drone unhooking device, insert the signal line plug with the pull line into the signal line socket and fix the pull line to the drone frame, then insert the battery switch plug into the battery switch socket, turn on the power supply switch of the control integrator, start the control integrator 5, and the drone carrying the forest fire extinguishing device takes off and reaches the predetermined altitude above the forest fire; (2) The drone unhooking device is unhooked, the forest fire extinguishing device falls under its own weight, the signal line plug is pulled out of the signal line socket by the pull line, the detection delay device starts to start working and timing, the forest fire extinguishing device falls until the detection delay device 3 ends, the control integrator powers the solid-gas converter to start, the solid-gas converter generates a large amount of gas and releases it quickly through the exhaust port, the shell is ruptured under the action of gas, the fire extinguishing agent is thrown into the fire area under the action of gas, and the fire extinguishing agent is extinguished by the dual action of gas and fire extinguishing agent.

[0020] This utility model's fire extinguishing device addresses one of the problems existing in the prior art: by using a solid-gas converter to generate nitrogen to drive the diffusion of the extinguishing agent, it effectively solves the problem of insufficient energy for driving the extinguishing agent in existing blasting units. The solid-gas converter mainly includes an ignition device, a solid gas-generating agent, and a shell. The ignition device and the solid gas-generating agent are housed inside the shell. The solid gas-generating agent is ignited by the ignition device, producing a large amount of nitrogen gas. This nitrogen gas is discharged through the exhaust port on the solid-gas converter shell and mixes with the extinguishing agent inside the fire extinguishing device shell, rapidly building up pressure until the shell ruptures. The nitrogen gas and extinguishing agent mixture is then sprayed onto the fire source, extinguishing the fire through a dual action.

[0021] This utility model addresses the second problem with existing technologies: increased starting current and safe non-starting current. The ignition device of the solid-gas converter uses an electric starter with a reliable starting current ≥1.2A and a safe non-starting current ≤400mA. Both the starting current and the safe non-starting current are doubled compared to the above currents, making the forest fire extinguishing device safer and more reliable.

[0022] This utility model addresses the third problem with existing technologies in its fire extinguishing device: it incorporates a battery switch socket. Even if the power supply switch of the control integrator is accidentally activated, or the signal plug and socket become disconnected, the battery will not supply power when the battery switch plug is not plugged in. Consequently, the forest fire extinguishing device will not operate due to the lack of electrical signal, thus further enhancing safety.

[0023] The beneficial effects of this utility model are:

[0024] 1. The impulse gained by the extinguishing agent in physics: impulse = force gained × time of force action (I=F*t); the time of the blasting unit acting on the extinguishing agent is no more than 10ms; the time of the solid-gas converter acting on the extinguishing agent is more than 30ms; therefore, the extinguishing agent of this utility model fire extinguishing device gains a larger impulse and is easier to diffuse.

[0025] 2. When the micro-current generated by the electromagnetic radiation of the drone is constant, the larger the starting current and the safe non-starting current of the device, the safer it is. The starting current of the electric starter is twice that of the ignition head of the explosive unit, and the safe non-starting current of the electric starter is about 2.7 times that of the ignition head of the explosive unit; therefore, the fire extinguishing device of this utility model is safer.

[0026] 3. An extra step to prevent accidental touch adds to safety; existing forest fire extinguishing devices require two activation procedures after being mounted, while this new invention requires three activation procedures, resulting in higher reliability. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of an existing non-pressurized forest fire extinguishing device.

[0028] In the diagram: 1. Unmanned aerial vehicle (UAV) release device, 2. Device hook, 3. Detection delay device, 4. Explosive wire socket, 5. Control integrator, 6. Control integrator power switch, 7. Explosive unit, 8. Fire extinguishing agent, 9. Casing.

[0029] Figure 2 This is a schematic diagram of the structure of a non-pressurized forest fire extinguishing device according to an embodiment of the present invention.

[0030] In the diagram: 1. Unloader, 2. Device hook, 3. Detection delay device, 4. Signal line socket, 5. Control integrator, 6. Control integrator power switch, 7. Solid-gas converter, 8. Fire extinguishing agent, 9. Housing, 10. Battery switch socket. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the embodiments and accompanying drawings. Example

[0032] Non-pressurized forest fire suppression device, used for unmanned aerial vehicle (UAV) forest fire suppression, its structure is shown in the attached reference. Figure 2The device mainly includes a housing 9. The top of the housing 9 is equipped with a drone release device 1 and a device hook 2. The upper part of the housing 9 is equipped with a control integrator 5. The upper part of the control integrator 5 is equipped with a control integrator power supply switch 6, a detection delay device 3, a signal line socket 4, and a battery switch socket 10. The lower part of the control integrator 5 is connected to a solid-gas converter 7. The sealed cavity of the housing 9 contains a fire extinguishing agent 8, and the solid-gas converter 7 is buried in the fire extinguishing agent 8. The signal line socket 4 is equipped with a signal line plug with a pull cord, and the battery switch socket 10 is equipped with a battery switch plug.

[0033] In this embodiment, the control integrator 5 is powered by a built-in battery, and its power supply is controlled by the battery switch plug and battery switch socket 10 and the control integrator power supply switch 6; the activation of the detection delay 3 is controlled by the signal line socket 4 and signal line plug; the start-up of the solid-gas converter 7 is controlled by the detection delay 3 and the control integrator 5.

[0034] In this embodiment, the solid-gas converter 7 includes a housing, an ignition device and a solid gas-generating agent are built into the housing, and the housing is provided with a dense array of exhaust holes with a diameter of 3.5 mm; the ignition device adopts an electric starter with a reliable starting current ≥1.2A and a safe non-starting current ≤400mA. Example 1

[0035] The structure of the non-pressurized forest fire extinguishing device is the same as above. The electric starter is the commercially available RY3006 model, which complies with the provisions of XF 499.1-2010. It is tested using a gas generator Pt test system. The reliable starting current is ≥1.2A and the safe non-starting current is ≤400mA.

[0036] The mass percentage of the solid gas-generating agent components is: 60% strontium nitrate and 40% 5-AT (5-aminotetrazolium); the maximum particle size of the solid residue after action is less than 0.2 mm.

[0037] Example 1: Fire extinguishing method of non-pressurized forest fire extinguishing device:

[0038] (1) Set the parameters of the forest fire extinguishing device detection delay timer 3, i.e. select the delay time of 2S or 3S, hang the forest fire extinguishing device on the drone through the device hook 2 and the drone unhooking device 1, insert the signal line plug with the pull cable into the signal line socket 4 and fix the pull cable to the drone frame, then insert the battery switch plug into the battery switch socket 10, turn on the power supply switch 6 of the control integrator, start the control integrator 5, and the drone carrying the forest fire extinguishing device takes off and reaches the predetermined altitude above the forest fire.

[0039] (2) The drone unhooking device 1 is unhooked, and the forest fire extinguishing device falls under its own weight. The signal line plug is pulled out of the signal line socket 4 by the pull wire. The detection delay 3 starts working and starts timing. During the fall of the forest fire extinguishing device, the control integrator 5 supplies power to the solid-gas converter 7 and starts. The solid-gas converter generates a large amount of gas and releases it rapidly through the exhaust port. The housing 9 ruptures under the action of the gas. The fire extinguishing agent is thrown into the fire area under the action of the gas. The fire extinguishing agent and the gas work together to extinguish the fire.

[0040] The fire extinguishing device in this embodiment uses a solid-gas converter, which acts on the extinguishing agent for more than 30ms. Therefore, the extinguishing agent in this embodiment receives a larger impulse and is easier to diffuse.

[0041] The following is a comparison between this utility model embodiment and existing non-pressurized forest fire extinguishing devices:

[0042]

[0043] For fire extinguishing devices used by drones in forest fire suppression, when the micro-current generated by the electromagnetic radiation from the drone is constant, the larger the device's starting current and safe non-starting current, the safer it is. From the comparative data above, it can be seen that the starting current of the electric starter in the embodiment is twice that of the ignition head of the explosive unit in the existing device, and the safe non-starting current of the electric starter is approximately 2.7 times that of the ignition head of the explosive unit in the existing device; therefore, the fire extinguishing device in the embodiment is safer.

[0044] For safety, the fire extinguishing device in this embodiment is designed with a battery switch socket. Even if the power switch of the control integrator is accidentally touched, or the signal plug and socket become disconnected, the battery switch socket will not supply power if the plug is not plugged in, and the forest fire extinguishing device will not work without an electrical signal. Existing forest fire extinguishing devices require two program activations after being mounted, while the device in this embodiment requires three program activations, making it more reliable.

[0045] Any aspects not described in this embodiment are conventional techniques in the field.

Claims

1. A non-pressurized forest fire extinguishing device, characterized in that... It includes a housing, with a drone release device and a device hook on the top of the housing. A control integrator is located in the upper part of the housing, and the upper part of the control integrator is equipped with a control integrator power supply switch, a detection delay device, a signal line socket, and a battery switch socket. A solid-gas converter is connected to the lower part of the control integrator. The sealed cavity of the housing contains a fire extinguishing agent, and the solid-gas converter is buried in the fire extinguishing agent. The signal line socket is equipped with a signal line plug with a pull cord, and the battery switch socket is equipped with a battery switch plug.

2. The non-pressurized forest fire extinguishing device according to claim 1, characterized in that... The control integrator is powered by a built-in battery, and its power supply is controlled by a battery switch plug and a battery switch socket, as well as a power supply switch for the control integrator.

3. The non-pressurized forest fire extinguishing device according to claim 1, characterized in that... The activation of the detection delay device is controlled by the signal line socket and the signal line plug.

4. The non-pressurized forest fire extinguishing device according to claim 1, characterized in that... The start-up of the solid-gas converter is controlled by a detection delay unit and a control integrator.

5. The non-pressurized forest fire extinguishing device according to claim 1 or 4, characterized in that... The solid-gas converter includes a housing, which houses an ignition device and a solid gas-generating agent. The housing is provided with a dense array of exhaust holes.

6. The non-pressurized forest fire extinguishing device according to claim 5, characterized in that... The diameter of the exhaust port is 3.5 mm.

7. The non-pressurized forest fire extinguishing device according to claim 5, characterized in that... The ignition device uses an electric starter with a reliable starting current ≥1.2A and a safe non-starting current ≤400mA.

8. The non-pressurized forest fire extinguishing device according to claim 7, characterized in that... The electric starter used is the commercially available RY3006 model.

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