WO2018214011A1

WO2018214011A1 - Forest-fire-extinguishing bomb

Info

Publication number: WO2018214011A1
Application number: PCT/CN2017/085453
Authority: WO
Inventors: 李广赫
Original assignee: 李广赫
Priority date: 2017-05-23
Filing date: 2017-05-23
Publication date: 2018-11-29

Abstract

Provided is a forest-fire-extinguishing bomb, comprising a bomb body (1), a fire-extinguishing trigger device and a central explosion tube (3), wherein a trigger end of the fire-extinguishing trigger device is connected to a trigger end of the central explosion tube (3), the central explosion tube (3) is provided inside the bomb body (1), and the bomb body (1) is internally filled with a fire-extinguishing agent. At least three rotating tail wings (2) are comprised, wherein the at least three rotating tail wings (2) are provided around an outer wall of the tail of the bomb body (1) in a rotating manner; during the falling of the bomb body (1), the rotating tail wings (2) form a rotational flow at the periphery of the bomb body (1), enabling the rotation of the bomb body (1) to be accelerated; and an inertia force generated by the acceleration of the rotation of the bomb body (1) and an explosive force generated by the explosion caused by the fire-extinguishing trigger device triggering the central explosion tube (3) enable the fire-extinguishing agent internally filled in the bomb body (1) to be diffused in a wide range. According to the forest-fire-extinguishing bomb, setting at least three rotating tail wings (2) at the outer wall of the tail of the bomb body (1) in a rotating manner enables the bomb body (1) to rotate at a high speed in the horizontal direction during the falling, providing power for the diffusion of the fire-extinguishing agent and sand after the bomb body (1) explodes, thereby improving fire-extinguishing efficiency of the fire-extinguishing bomb.

Description

Forest fire bomb

Technical field

The invention relates to the technical field of fire extinguishing devices, in particular to a forest fire extinguishing bomb.

Background technique

Forest fires are natural disasters that are sudden, destructive, and difficult to handle. The commonly used forest fire fighting method is to use the aircraft to throw fire extinguishing agents to extinguish the fire. However, the fire extinguishing agent thrown by the aircraft will be affected by the wind direction, and the fire extinguishing agent will not fall within the specified range as expected, and it is difficult to effectively extinguish the fire. In view of the above problems, the person skilled in the art has developed a forest fire extinguishing bomb, which can be projected at a fixed point, and will release the fire extinguishing agent after a certain distance from the fire source, thereby effectively avoiding the distance fire source caused by directly using the aircraft to throw the fire extinguishing agent. Farther away, the extinguishing agent is blown off the path by the wind. However, during the fall of the existing forest fire-fighting bomb, the projectile does not rotate in the horizontal direction. The divergence of the fire-extinguishing agent depends only on the explosive force of the fire-fighting bomb itself, and the coverage is limited, even if enough fire-extinguishing agent is stored in the fire-extinguishing bomb. It also does not exert its due effect, resulting in waste of resources and low fire-fighting efficiency.

Summary of the invention

In order to solve the technical problem in the prior art, the divergence of the fire extinguishing agent in the forest fire extinguishing bomb relies solely on the explosive force of the projectile itself, resulting in a small range of fire extinguishing agent divergence. The technical solution of the present invention is as follows:

The forest fire extinguishing bomb of the present invention comprises an elastic body, a fire extinguishing trigger device and a central squib; the trigger end of the fire extinguishing trigger device is connected to the trigger end of the central squib, and the central squib is disposed on the projectile Internally, the body is filled with a fire extinguishing agent; and further includes at least three rotating tails; the at least three rotating tails are arranged around the outer wall of the tail of the projectile, and the rotating tail is in the process of falling The swirling flow is formed around the body, so that the rotation of the elastic body is accelerated, and the inertial force generated by the acceleration of the rotation of the elastic body and the explosive force generated by the fire extinguishing trigger device triggering the explosion of the central explosion tube cause the fire extinguishing agent filled inside the elastic body to diverge widely.

In a preferred embodiment, the fire extinguishing trigger device comprises a switch button, a controller and an ignition device; an output end of the switch button is connected to an input end of the timing module in the controller, and an output of the timing module The end is connected to the input end of the control module in the controller, the output end of the control module is connected to the input end of the ignition device, and the output end of the ignition device is connected to the trigger end of the central squib When the switch button is turned on, the timing module in the controller starts timing, and sends the timing data to the control module of the controller, and the control module compares the received timing data with the set time in the control module, when the set time is reached. The control module in the controller sends information to the ignition device to cause the ignition device to operate in a detonating center.

In a preferred embodiment, the method further includes: a standby fire extinguishing trigger device; the standby fire extinguishing trigger device includes a vibration sensor, a standby controller, and a standby ignition device; the vibration sensor is disposed on the inner wall of the bomb, the vibration An output end of the sensor is connected to an input end of the control module in the controller, an output end of the control module in the controller is connected to an input end of the standby controller, and an output end of the standby controller is connected to the standby The input end of the ignition device is connected, and the output end of the standby ignition device is connected to the trigger end of the central squib; when the timing data sent by the timing module in the controller reaches the set time in the controller, the control in the controller The module can still receive the vibration information sent by the vibration sensor, and the control module in the controller sends information to the standby controller, and the standby controller controls the standby ignition device to operate and detonate the central explosion tube.

In a preferred embodiment, the fire extinguishing trigger is a mechanical instant triggering fuze.

In a preferred embodiment, the shape of the elastic body is a cylinder, and the inner part of the elastic body is a cavity of a sand chamber and a fire extinguishing agent cavity, the sand cavity is filled with sand, and the fire extinguishing agent cavity is filled. Dry powder fire extinguishing agent.

In a preferred embodiment, the ignition device and the standby ignition device are non-contact electronic ignition devices.

In a preferred embodiment, the non-contact electronic ignition device is a magnetic induction type non-contact electronic ignition device.

In a preferred embodiment, a protective cover is further included; the protective cover is disposed at a front end of the elastic body, and the protective cover is detachably coupled to the elastic body.

In a preferred embodiment, a delay device is included; an input end of the delay device is connected to the switch button, and an output end of the delay device is connected to an input end of the controller, the control The output end of the device is connected to the ignition device; when the switch button is turned on, after the delay time set in the delay device, the control module in the controller sends a message to the ignition device, so that the ignition device works to detonate the center burst tube .

The forest fire extinguishing bomb of the present invention has the beneficial effects compared with the prior art:

In the forest fire extinguishing bomb of the present invention, at least three rotating tail fins are arranged on the outer wall of the tail end of the elastic body, so that the elastic body rotates at a high speed in the horizontal direction during the falling process, and provides power for the diffusion of the fire extinguishing agent and the sand after the bomb explosion. Thereby improving the fire extinguishing efficiency of the fire extinguisher.

The invention provides a plurality of triggering devices, and the user can select different triggering devices according to actual use occasions, wherein the triggering device utilizes a timer or a delay device to realize triggering after a certain time interval after starting, and the mechanical instant triggering fuze Can achieve floor triggering. This arrangement increases the scope of application of the forest fire extinguishing bomb of the present invention.

DRAWINGS

Figure 1 is a schematic view showing the structure of a forest fire extinguishing bomb in the present invention;

Figure 2 is a schematic view showing the structure of the tail of a forest fire extinguishing bomb in the present invention.

detailed description

The technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

As shown in FIG. 1, the forest fire extinguishing bomb of the present invention comprises an elastic body 1 and at least three rotating tail fins 2; at least three rotating tail fins 2 are arranged around the outer wall of the tail of the elastic body 1 so that the falling process of the elastic body 1 In the middle, the rotating tail 2 forms a swirl around the body 1, so that the rotation of the body is accelerated. This acceleration principle is the same as that of the swirl vane. During the falling of the projectile 1, due to the action of the rotary tail 2, the projectile 1 rotates in a direction perpendicular to the direction of the drop, and the speed of the rotation increases with the drop. In this way, when the projectile 1 throws out the fire extinguishing agent in the explosion, the explosive force inside the fire extinguishing bomb and the inertial force during the rotation of the projectile 1 will promote the wide dispersion of the fire extinguishing agent inside the fire extinguishing bomb, thereby increasing the fire extinguishing area. Improve fire-fighting efficiency and effectively use the resources in the fire-fighting bombs without wasting resources.

When the aircraft is air-delivered, it will stay in the forest directly above or above the slope, and ensure a certain safety distance. In order to ensure the fire-fighting efficiency, the distance between the aircraft and the fire ground needs to be calculated and set. The explosion time of the fire-fighting bombs, so that the fire-fighting bombs can exert the maximum power. The fire extinguishing bomb of the present invention comprises a fire extinguishing trigger device and a central squib 3, and the trigger end of the central squib 3 is connected to the fire extinguishing trigger device. The fire extinguishing trigger device is disposed at the inner front end of the projectile, and the central burst tube 3 is disposed in the middle of the inner body of the projectile. The fire extinguishing trigger device comprises a switch button 6, a controller 13 and an ignition device 9; the output end of the switch button is connected to the input end of the timing module 7 in the controller 13, the output end of the timing module 7 and the control module 8 in the controller 13 The input end is connected, the output end of the control module 8 is connected to the input end of the ignition device 9, the output end of the ignition device 9 is connected to the trigger end of the central squib 3, and when the switch button 6 is turned on, the timing module 7 in the controller 13 The timing is started, and the timing data is sent to the control module 8 of the controller 13, and the control module 8 compares the received timing data with the set time in the control module 8, and when the set time is reached, the control module in the controller 13 8 sends information to the ignition device 9 to cause ignition The device 9 operates to detonate the center squib 3. The explosion of the center squib 3 causes the entire fire blast to explode, and the fire extinguishing agent inside the fire extinguisher is released to extinguish the fire. The central detonator 3 is provided with a detonator in the middle, and the central detonator 3 is internally filled with explosives, and the detonator is connected with the ignition device 9 and the standby ignition device in the fire extinguishing trigger device. The chip type used by the controller is 89C51; the ignition device is a magnetic induction type non-contact electronic ignition device. The timing is performed using the timing module 7 in the control module 8, and the set time in the control module 8 can be adjusted according to the fire situation. If the fire is large, the aircraft needs to be lifted into the higher air. Therefore, it is necessary to extend the set time in the control module 8 so that the fire extinguisher can be exploded at a preset height to maximize its effect; If the fire is small, the aircraft can fly at low altitude. Therefore, it is necessary to shorten the set time in the control module 8, so that the fire extinguisher can be exploded at a preset height to maximize the effect.

In order to avoid the failure of the fire extinguishing trigger device, the fire extinguishing bomb cannot be exploded, which wastes resources and delays the fire. The fire extinguishing bomb of the present invention further includes a standby fire extinguishing triggering device, the standby fire extinguishing triggering device comprising a vibration sensor 10, a standby controller 11 and a backup ignition device 12; the vibration sensor 10 is disposed on the inner wall of the front end of the elastic body 1, and the output end of the vibration sensor 10 Connected to the input of the controller 7, the output of the controller 7 is connected to the input of the standby controller 11, the output of the standby controller 11 is connected to the input of the standby ignition device 12, and the output of the backup ignition device 12 is The center squib 3 input is connected. When the timing data transmitted by the timer 8 reaches the set time in the controller 7, the vibration sensor 10 can still detect the vibration of the projectile 1, the controller 7 transmits information to the standby controller 11, and the standby controller 11 controls the standby ignition. The device 12 operates to detonate the central squib 3. The chip used by the standby controller is 89C51; the standby ignition device is a non-contact electronic ignition device; the model of the vibration sensor is MLV-9268.

In order to ensure the fire extinguishing effect, it is sometimes necessary to control the fire extinguishing bomb to touch the ground before exploding, thereby completely extinguishing the open flame. Therefore, the fire extinguishing trigger device of the forest fire extinguishing bomb of the present invention adopts a mechanical instant triggering fuze. The mechanical instantaneous trigger fuze can ensure that the fire extinguisher hits the ground in the first time, and the explosion is guaranteed. The effect of fire.

The invention also provides another fire extinguishing trigger device, including a delay device; the input end of the delay device is connected to the switch button 6, the output end of the delay device is connected to the input end of the controller 13, and the output end of the controller 13 Connected to the ignition device 9; when the switch button 6 is turned on, after the delay time set in the delay device, the control module in the controller 13 sends a message to the ignition device 9 to cause the ignition device 9 to operate to detonate the center burst.

In order to make the fire extinguishing effect better, the shape of the projectile 1 is set as a cylinder, and the inside of the projectile 1 is divided into two chambers of a sand chamber 4 and a fire extinguishing agent chamber 5, and the sand chamber 4 and the fire extinguishing agent chamber 5 are annularly arranged. The fire extinguishing agent chamber 5 abuts against the outer wall of the elastic body 1, the sand chamber 4 is filled with sand, and the fire extinguishing agent chamber 5 is filled with a dry powder fire extinguishing agent. When the fire extinguishing bomb explodes, firstly the dry powder fire extinguishing agent in the fire extinguishing agent chamber 5 is scattered and falls into the fire source to extinguish the fire. The sand in the sand chamber 4 is placed on the fire source to ensure that every fire is completely destroyed.

In order to prevent accidental contact with the switch button 6, a shield 13 is provided at the front end of the projectile 1, and the shield 13 is detachably connected to the projectile 1 and covers the switch button 6. The detachable connection includes a threaded connection, a snap connection, and the like. Before use, it is necessary to set the set time in the controller 7; in use, the shield needs to be removed, and then the switch button 6 is pressed, the timer starts counting, and the timing data is sent to the controller 13.

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

a forest fire extinguishing bomb, comprising an elastic body, a fire extinguishing trigger device and a central squib; the trigger end of the fire extinguishing trigger device is connected to a trigger end of the central squib, the central squib is disposed inside the projectile, The body is filled with a fire extinguishing agent; and is characterized in that it further comprises at least three rotating tails; the at least three rotating tails are arranged around the outer wall of the tail of the body, and the rotating tail is around the body during the falling of the body The swirling flow is formed to accelerate the rotation of the projectile body, and the inertial force generated by the acceleration of the rotation of the projectile and the explosive force generated by the fire extinguishing trigger device triggering the explosion of the central explosion tube cause the fire extinguishing agent filled inside the projectile to diverge widely.
The forest fire extinguishing device according to claim 1, wherein the fire extinguishing trigger device comprises a switch button, a controller and an ignition device; and an output end of the switch button is connected to an input end of the timing module in the controller, An output end of the timing module is connected to an input end of a control module in the controller, an output end of the control module is connected to an input end of the ignition device, and an output end of the ignition device and the center explosion The trigger end of the tube is connected. When the switch button is turned on, the timing module in the controller starts timing, and sends the timing data to the control module of the controller, and the control module compares the received timing data with the set time in the control module. When the set time is reached, the control module in the controller sends a message to the ignition device to cause the ignition device to operate in a detonating center.
The forest fire extinguishing bomb according to claim 2, further comprising: a standby fire extinguishing triggering device; the standby fire extinguishing triggering device comprises a vibration sensor, a standby controller and a standby ignition device; wherein the vibration sensor is disposed on the bullet An inner wall, an output end of the vibration sensor is connected to an input end of the control module in the controller, and an output end of the control module in the controller is connected to an input end of the standby controller, and the standby controller is The output end is connected to the input end of the standby ignition device, and the output end of the standby ignition device is connected to the trigger end of the central squib; when the timing data sent by the timing module in the controller reaches the set time in the controller The control module in the controller can still receive the vibration information sent by the vibration sensor, and the control module in the controller sends the information to the standby controller. The standby controller controls the standby ignition device to operate and detonate the central squib.
The forest fire extinguisher according to claim 1, wherein said fire extinguishing trigger is a mechanical instant triggering fuze.
The forest fire extinguishing bomb according to claim 3, wherein the shape of the projectile is a cylinder, and the inner portion of the body is a cavity of a sand chamber and a fire extinguishing agent chamber, and the sand chamber is filled with sand. The fire extinguishing agent cavity is filled with a dry powder fire extinguishing agent.
The forest fire extinguisher according to claim 5, wherein said ignition means and said standby ignition means are non-contact electronic ignition means.
The forest fire extinguisher according to claim 6, wherein said non-contact electronic ignition device is a magnetic induction type non-contact electronic ignition device.
The forest fire extinguishing bomb according to claim 1, further comprising a protective cover; the protective cover is disposed at a front end of the elastic body, and the protective cover is detachably coupled to the elastic body.
The forest fire extinguishing bomb according to claim 2, comprising a delay device; an input end of said delay device is connected to said switch button, an output end of said delay device and an input of said controller End connection, the output end of the controller is connected to the ignition device; when the switch button is turned on, after the delay time set in the delay device, the control module in the controller sends information to the ignition device to make the ignition The device works to detonate the center burst.