Fire extinguishing system and fire-fighting aircraft with same

Abstract

The invention relates to a fire extinguishing system and a fire-fighting aircraft with the same, which are used for solving three defects (geologic limitation, low efficiency of a fire extinguishing mode and extremely low risk of flight) of a currently used forest fire extinguishing mode. The fire extinguishing system according to the present invention is a fire extinguishing system installed in a cargo hold of an aircraft to extinguish fire, and comprises: a fire extinguishing agent container mounted in the cargo hold and storing a fire extinguishing agent; the pump is connected with the fire extinguishing agent container through a first fire hose and pumps the fire extinguishing agent; and a firing device for firing the fire extinguishing agent pumped from the pump to extinguish the fire, the firing device may comprise: a firing tube provided with a nozzle connected to the pump through a second fire hose, the nozzle spraying or spraying the fire extinguishing agent pumped from the pump; a support part provided in the cargo hold; a rotating part which is provided between the support part and the firing tube, and which enables the firing tube to rotate in the vertical and horizontal directions; and a manipulation unit provided so as to surround the firing tube and manipulate the direction of the nozzle of the firing tube in the vertical and horizontal directions.

Description

Technical Field

[0001] The present invention relates to a fire extinguishing system and a fire fighting aircraft equipped with the same. Background Art

[0002] In recent years, large forest fires have continued to occur around the world, and as the effects of global warming intensify, the likelihood of such fires continuing to occur in the future is increasing.

[0003] Like any other fire, it is very important to extinguish a forest fire in its early stages. If this early extinguishing period is missed, it will expand into a large forest fire that spreads to several mountains and forests, causing huge losses to the ecology, economy, and society, and even causing the deaths of firefighters and civilians. In the long run, it will take 40 to 100 years for the mountains and forests burned by such forest fires to recover, and it will require continuous efforts and costs. However, the bigger problem is that such large forest fires have occurred repeatedly almost every year in recent years, and are likely to become more frequent.

[0004] In order to extinguish such forest fires, no matter which country, firefighters, fire trucks, etc., fire-fighting helicopters, fire-fighting aircraft, etc., and even civilians will be dispatched to extinguish the fire, but it often expands into a large forest fire, making the efforts of the fire department seem insignificant. This is the reality. In other words, in the case of some large forest fires, many fire trucks and firefighters, many helicopters and civilians are involved in forest fire fighting, but the reality is that it seems not enough to extinguish the forest fire. The reason why forest fire fighting is so difficult is that there are difficulties in the current fire fighting methods used.

[0005] At present, the main fire-fighting equipment used to extinguish forest fires are fire-fighting helicopters and fire-fighting aircraft. However, they have three major disadvantages. First, there is the disadvantage of geographical restrictions. For fire-fighting aircraft, it is necessary to travel back and forth between the aircraft take-off and landing site. Even for helicopters, the distance between the water source (river or lake) and the fire area is an important factor in determining the effectiveness of forest fire extinguishing. At this time, if the water source is close, it is fine, but if it is far, it will waste a lot of time to go back and forth. In addition, even if every second counts after receiving the initial forest fire alarm, water cannot be transported directly to the fire scene, and if the water source is very far away, it must pass through the very far water source before going. Secondly, the fire-fighting method itself is inefficient. This method is different from the fire-fighting water extinguishing process at the general fire scene on land. You can't aim at the fire hose while looking at the fire, but simply pour water on the fire, which is extremely inefficient. This method is easy to leave embers on branches or anywhere else. Because of the embers left, the helicopter needs to go to the water source again, so it is inefficient in terms of water and helicopter fuel. Third, there is the danger of low-altitude flight. Firefighting helicopters are always faced with the danger of having to fly very low to get water from the water source. Due to the characteristics of helicopters, extremely low flight is very dangerous.

[0006] With forest fires increasing due to climate change, many countries around the world, including the United States and South Korea, have set up their own independent forest fire fighting equipment research departments to develop forest fire fighting equipment, but somehow they are still using methods that are 50 years old or more. In other words, even for firefighting helicopters, there have been no major developments except for enhancing the performance of helicopters so that they can carry more water than in the past. This may form a slowly increasing vicious cycle, that is, when forests in many countries around the world are burned by forest fires, the earth's ability to purify carbon dioxide decreases according to the burned forest area, which further exacerbates global warming and further increases the frequency of forest fires. Therefore, it is necessary to develop technologies that overcome the above three shortcomings as soon as possible. Summary of the invention

[0007] The purpose of the present invention is to overcome the three disadvantages of the prior art mentioned above. First, the initial extinguishing of forest fires. Even if the initial extinguishing fails due to strong winds or other reasons and the forest fire expands to a large scale, the forest fire can be extinguished in a more effective way than the existing forest fire extinguishing methods. Among them, the initial extinguishing means that the aircraft completely extinguishes the forest fire within 2 hours or at most 3 hours, under the premise that the occurrence of the forest fire and its alarm occur almost simultaneously.

[0008] Therefore, in order to overcome the above-mentioned practical difficulties of the present invention, the following problems must be solved. First, in order to overcome the difficulties of geographical restrictions, the fire department must be able to select a water supply location that can supply water by itself. Only in this way can a systematic and efficient forest fire extinguishing plan be established regardless of the location of the river or lake. Secondly, more advanced technology is needed to overcome the inefficiency of simply pouring water on the fire. In other words, an efficient fire-fighting method is needed, such as ground firefighters using fire trucks' hoses to efficiently extinguish fires while observing the fire. Third, in order to reduce the danger of fire-fighting helicopters, the danger of flying at extremely low altitudes above the water must first be eliminated and the number of flights must be reduced as much as possible.

[0009] A fire extinguishing system according to one aspect of the present invention is a fire extinguishing system arranged in a cargo hold of an aircraft to extinguish a fire, comprising: a fire extinguishing agent container, loaded in the cargo hold, storing the fire extinguishing agent; a pump, connected to the fire extinguishing agent container via a first fire hose, pumping the fire extinguishing agent; and a launching device, launching the fire extinguishing agent pumped from the pump to extinguish a fire, the launching device may include: a launching tube, provided with a nozzle, the nozzle being connected to the pump via a second fire hose, ejecting or spraying the fire extinguishing agent pumped from the pump; a supporting portion, arranged in the cargo hold; a rotating portion, arranged between the supporting portion and the launching tube, allowing the launching tube to rotate upward, downward, leftward, and rightward; an operating portion, arranged to surround the launching tube, controlling the direction of the nozzle of the launching tube upward, downward, leftward, and rightward; and a control portion, connected to a display that displays various function buttons and notifies the current situation, and connected to various sensors that detect the operation of the operating portion and the remaining amount of the fire extinguishing agent stored in the fire extinguishing agent container.

[0010] Specifically, the rotating part may include: a rotating gear box fixedly mounted on the upper part of the supporting part; and a rotating member disposed between the rotating gear box and the launching tube, capable of rotating forward, backward, left and right according to the operation of the operating part.

[0011] Specifically, the control unit can control the pump by selecting whether the pump is in action (on or off) on the display, control the rotating part by selecting the forward, backward, left and right rotation function (manual function or semi-automatic function) of the rotating part on the display, control the nozzle by selecting the emission mode (injection mode or spraying mode) of the fire extinguishing agent sprayed through the nozzle on the display, and control the nozzle by selecting the emission pressure (high pressure, medium pressure or low pressure) of the fire extinguishing agent sprayed through the nozzle on the display.

[0012] Specifically, when the forward, backward, left and right rotation function of the rotating part is selected as a manual function on the display, the control unit can control the operation of the rotating gear box to be in a closed state, so that the rotating member can rotate freely according to the operation of the operating unit.

[0013] Specifically, when the front, back, left, and right rotation function of the rotating part is selected as a semi-automatic function on the display, the control unit can control the movement of the rotating gear box to turn it into an open state, and control the rotating component to force it to rotate or be fixed according to whether the operating unit is operated.

[0014] Specifically, the control unit can control the rotating gear box to realize gear rotation when the sensor for detecting the manipulation of the manipulation of the manipulation unit detects manipulation, and force the rotating member to rotate in any direction of the forward, backward, left, and right directions corresponding to the manipulation direction of the manipulation unit, thereby moving the nozzle of the launch tube in any direction of the upward, downward, left, and right directions. When the sensor for detecting the manipulation of the manipulation unit does not detect manipulation, the control unit can control the rotating gear box to stop the gear rotation, and force the rotating member to be fixed during the period when there is no manipulation of the manipulation unit, thereby fixing the launch tube in a state in which the direction of the nozzle is maintained.

[0015] Specifically, the control unit may display the remaining amount value measured by the sensor for detecting the remaining amount of the fire extinguishing agent stored in the fire extinguishing agent container on the display in real time, and issue an alarm when the measured remaining amount value reaches a preset value.

[0016] Specifically, the support portion may be disposed on a guide rail provided in the cargo compartment, and may be slid forward and backward along the guide rail to adjust a position, and may be fixed by a limiter provided on the guide rail during fire extinguishing.

[0017] Specifically, the fire extinguishing agent container may include: a main body, storing the fire extinguishing agent; an inlet, arranged on the upper surface of the main body, to store the fire extinguishing agent inside the main body; an outlet, arranged on the side of the main body and connected to the first fire hose, to supply the fire extinguishing agent stored in the main body to the launching device; and a plurality of wheels, arranged on the lower surface of the main body, to be loaded from land to the cargo hold of the aircraft.

[0018] Specifically, the fire extinguisher container can be loaded from land to the aircraft by a loading device provided in the cargo hold, and can be detachably mounted on a container fixing device provided in the cargo hold.

[0019] Specifically, the fire extinguishing agent container may further include a sway suppression device disposed inside the main body to prevent the movement of the aircraft from being hindered due to swaying of the fire extinguishing agent stored in the main body.

[0020] Specifically, the sway suppression device may be formed as any one or a combination of at least one porous plate arranged at a certain height upward from the lower surface of the main body, and a plurality of buffer plates arranged at a certain height inward from the inner side of the main body.

[0021] Specifically, the sway suppression device may include: a buoyancy plate, covering the upper surface of the fire extinguishing agent, and having a plurality of flow holes; a plurality of guide members, arranged longitudinally on the side of the main body and spaced apart at certain intervals in the transverse direction; and a plurality of sliding members, one end of which is connected to each of the plurality of guide members in a manner capable of rising and falling according to the liquid level on the upper surface of the fire extinguishing agent, and the other end of which is fixedly connected to the edge of the buoyancy plate.

[0022] Specifically, the pump can be a drainage and water supply pump installed in the cargo hold of the aircraft or a part of the fire extinguishing agent container. During fire extinguishing, the pump acts as a drainage pump, and the fire extinguishing agent is launched from the nozzle through the first fire hose connected to the outflow port of the fire extinguishing agent container and the second fire hose connected to the launching tube of the launching device. When the fire extinguishing agent container is carried in the cargo hold, when new fire extinguishing agent is replenished during flight, the pump acts as a water supply pump, and the first fire hose is separated from the outflow port and then connected to the inflow port of the fire extinguishing agent container, and the second fire hose is separated from the launching tube and then connected to the third fire hose, thereby replenishing the new fire extinguishing agent.

[0023] Specifically, the third fire hose can be connected to the second fire hose at one end and have a length extending to a water source on land, and has a hollow cylindrical body at the other end, and an inlet pipe for the new fire extinguishing agent to flow into the upper part of one side of the body to prevent the influx of foreign matter.

[0024] According to another aspect of the present invention, a fire-fighting aircraft may include: the fire-extinguishing system according to claim 1; and the aircraft provided with the fire-extinguishing system, the aircraft including: a cockpit; the cargo hold, separated by a partition wall, carrying the fire-extinguishing agent container; a loading ramp, arranged at the rear of the cargo hold, for loading or unloading the fire-extinguishing agent container from land; and an access portion, arranged at the side of the cargo hold, for positioning the launching device.

[0025] Specifically, it can also include a loading device, which is arranged on the above-mentioned partition wall side of the above-mentioned cargo hold to load the above-mentioned fire extinguisher container from land to the cargo hold. The above-mentioned loading device is a winding machine that connects the above-mentioned fire extinguisher container with a wire rope and pulls it into the above-mentioned cargo hold.

[0026] Specifically, it can also include a container fixing device which is arranged at the bottom of the above-mentioned cargo hold and fixes the above-mentioned fire extinguisher container, and the above-mentioned container fixing device includes: a front fastening portion, which is arranged to correspond to the front width of the above-mentioned fire extinguisher container, and is arranged at the bottom of the above-mentioned cargo hold in a fixed manner, so that the front of the above-mentioned fire extinguisher container is fixed; a rear fastening portion, which is arranged to correspond to the rear width of the above-mentioned fire extinguisher container, and is arranged at the bottom of the above-mentioned cargo hold in a variably manner to avoid interference when the above-mentioned fire extinguisher container is loaded into the interior of the above-mentioned cargo hold, and fixes the rear of the above-mentioned fire extinguisher container; and a wheel fastening portion, which is arranged to correspond to a plurality of wheels arranged on the lower surface of the main body of the above-mentioned fire extinguisher container, and is arranged at the bottom of the above-mentioned cargo hold in a variably manner to avoid interference when the above-mentioned fire extinguisher container is loaded into the interior of the above-mentioned cargo hold, and fixes the above-mentioned plurality of wheels.

[0027] Specifically, it may further include a wheel guide extending from the loading ramp toward the partition wall side, so as to guide a plurality of wheels provided on the lower surface of the main body of the fire extinguisher container when the fire extinguisher container is loaded into the cargo hold.

[0028] Specifically, it can also include a guide rail, which is configured to extend a certain length from the above-mentioned entrance and exit part to the inner side of the above-mentioned cargo hold, so that the above-mentioned launching device can slide back and forth to adjust the position, and a limiter is provided to fix the above-mentioned launching device after the position is adjusted.

[0029] The fire extinguishing system according to the present invention and the fire-fighting aircraft equipped with the same can overcome the three shortcomings of the existing forest fire extinguishing methods mentioned above.

[0030] The first is the disadvantage of geographical restrictions. The fire extinguishing system according to the present invention and the fire-fighting aircraft equipped with the same can overcome the geographical restrictions of the existing fire-fighting methods. That is, the fire-fighting aircraft of the present invention can directly transport the fire-fighting agent container filled with fire-fighting agent to the forest fire extinguishing site by arranging a fire-fighting agent container that can be carried and replaced in the aircraft, so that the fire-fighting agent can be directly and quickly carried to the forest fire extinguishing site regardless of the water source at the beginning of the forest fire alarm. Just like the fire truck on land directly brings water to the fire scene while issuing a fire alarm. Although this is a response method that the fire department has nothing to do with the water source at the beginning of the forest fire alarm, the fire department can also formulate a fire-fighting plan that has nothing to do with the water source for the entire forest fire potential area. For example, assuming that there is a huge forest fire potential area, there will be several cities or villages around or within the forest fire potential area. If it is assumed that the fire-fighting aircraft of this embodiment also uses tap water as a fire extinguishing agent like the fire truck on land, then those cities or villages that produce tap water become the target areas for the supply of fire extinguishing agent (water). In these target areas, several areas are appropriately selected to configure the firefighting aircraft of the present embodiment. At this time, if the area to be configured must be inevitably large, multiple firefighting aircraft of the present embodiment are configured in proportion. If the area to be configured is small, the configuration is reduced in proportion. Of course, a take-off and landing field for the firefighting aircraft of the present embodiment is set in the selected area, and a pump facility that can act as a large faucet by filling empty fire extinguishing agent containers 31 is built. In order to deal with large forest fires, it is preferred to build several pump facilities. This is to fill multiple empty fire extinguishing agent containers at the same time. In addition, a large number of redundant fire extinguishing agent containers are also prepared. This is also for the same reason. Therefore, if a forest fire alarm is received, the firefighting aircraft of the present embodiment closest to the selected fire extinguishing agent supply site will be dispatched to extinguish the fire. In addition, while they are extinguishing the fire, other firefighting aircraft of the present embodiment at a farther location come to help extinguish the fire. If it is to this extent, given the speed of the firefighting aircraft of the present embodiment, it is highly likely that the fire can be extinguished. However, if the fire-fighting aircraft of the present embodiment that is first dispatched fails to extinguish the forest fire in the first takeoff and must further perform fire-fighting operations, it is necessary to return to the fire-extinguishing agent supply site again, quickly replace the fire-extinguishing agent container filled with fire-extinguishing agent, and go to the forest fire area again. In addition, at the fire-extinguishing agent supply site, multiple water supply facilities (pump facilities) are used to simultaneously fill empty fire-extinguishing agent containers. Therefore, even if the fire-fighting aircraft of the present embodiment that arrives at the forest fire scene for the second time to perform fire-fighting operations fails to complete the fire-fighting, it will also go to the nearby area to replace the fire-extinguishing agent container. Of course, if the fire-extinguishing agent supply facilities (pump facilities, etc.) at the fire-extinguishing agent supply site closest to the forest fire area do not have enough time to fill the empty fire-extinguishing agent container of the fire-fighting aircraft of the present embodiment that is returned with fire-extinguishing agent, the same operation is repeated at the fire-extinguishing agent selection site that is second closest to the forest fire area.This is sufficient to be achieved by wireless communication between drivers or between fire extinguishing agent supply locations.

[0031] Secondly, there is the disadvantage of inefficient fire extinguishing methods. The fire extinguishing system according to the present invention and the fire-fighting aircraft equipped with the same can overcome the inefficient fire-fighting methods of existing fire-fighting methods. That is, in the fire-fighting aircraft of the present invention, in order to be similar to the way firefighters extinguish fires on land, a fire-fighting system such as a fire extinguishing agent container, a pump and a fire hose is equipped in the aircraft, and when extinguishing forest fires, firefighters take the aircraft together. Therefore, firefighters directly observe the spread of the fire through the helicopter window in the air at the scene of the forest fire, and only concentrate on spraying or spraying fire extinguishing agents such as water at necessary locations. This fire-fighting method is quite effective compared to existing methods. This is because it is no different from the way firefighters on land only spray water at the required locations on land. In addition, due to this effective fire-fighting method, the waste of fire extinguishing agents (water) is greatly reduced.

[0032] Third, the dangerous disadvantage of low-altitude flight. The fire extinguishing system according to the present invention and the fire-fighting aircraft equipped with the same can reduce the flight danger of the existing fire-fighting method. That is, unlike the existing method, the pilot of the fire-fighting aircraft of the present invention only focuses on driving, and does not perform operations such as fetching water from a water source or spraying water on the fire. In other words, since the fire-fighting itself is the responsibility of the firefighters who are also on the aircraft, the pilot can only focus on driving, thus greatly reducing flight accidents. Moreover, since the fire-fighting method itself is more effective than the existing method, it not only reduces the waste of water, but also reduces the corresponding number of flights. Most importantly, it eliminates the danger of having to fly very low above the water. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 Schematic diagram of a fire extinguishing system and a fire fighting aircraft equipped with the same according to an embodiment of the present invention.

[0034] Figure 2 1 is a top cross-sectional view of a fire extinguishing system and a fire-fighting aircraft equipped with the same according to an embodiment of the present invention.

[0035] Figure 3 yes Figure 2 A top view cross-sectional view of an aircraft carrying a fire extinguisher container.

[0036] Figure 4 It is a diagram for explaining the configuration of the fire extinguishing system of the present invention.

[0037] Figure 5 It is a side sectional view for explaining an embodiment of a sloshing suppression device provided inside a fire extinguishing agent container in the fire extinguishing system of the present invention.

[0038] Figure 6It is a side sectional view for explaining another embodiment of the sloshing suppression device provided inside the fire extinguishing agent container in the fire extinguishing system of the present invention.

[0039] Figure 7 It is a top cross-sectional view for explaining another embodiment of the sloshing suppression device provided inside the fire extinguishing agent container in the fire extinguishing system of the present invention.

[0040] Figure 8 for Figure 7 Magnified view of section "A". DETAILED DESCRIPTION

[0041] The purpose, specific advantages and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments associated with the accompanying drawings. In this specification, when the components of the drawings are given reference numerals, it should be noted that the same components are given the same reference numerals as much as possible even if they appear on different drawings. In addition, in the description of the present invention, when it is considered that the detailed description of the related known technology may unnecessarily confuse the main purpose of the present invention, its detailed description will be omitted.

[0042] The firefighting aircraft of the present invention is built around a helicopter rather than an airplane. This is because it is impossible for an airplane to stay in one place in the air for a long time, and it is difficult for firefighters in the firefighting aircraft to concentrate on one place to spray fire extinguishing agent (water). In addition, it is assumed that the rear door of the helicopter is open. In addition, a large helicopter such as a Chinook is preferred. This is because the amount of water that can be loaded in a helicopter is large. Therefore, after installing a fire extinguishing agent container, i.e., a water tank, and a high-pressure pump for spraying water in the helicopter, the helicopter goes to the forest fire scene together with the firefighters. Afterwards, the firefighters use the water in the fire extinguishing agent container and the water pipe connected to the high-pressure pump in the air at the fire scene, and spray water toward the fire in the helicopter through the window of the helicopter or the side inlet of the helicopter that can see the outside. This is such a way. This is the basic concept of the firefighting aircraft of the present invention.

[0043] In order to construct the fire-fighting aircraft of the present invention, four types of equipment or devices are generally required. The first is a fire-extinguishing agent container (water tank) and fire-fighting equipment for extinguishing the fire itself, the second is a device for loading and fixing the fire-extinguishing agent container, the third is a number of alarm devices and a waterproof cover for stable flight, and the fourth is other equipment or devices for more effective fire extinguishing.

[0044] In addition, in the fire-fighting aircraft of the present invention, the helicopter window refers to a portion where firefighters can spray water while looking outside the helicopter, regardless of whether it is a window of the helicopter or a side entrance of the helicopter. In the fire-fighting aircraft of the present invention, its position is considered to be on the right side behind the driver. (Even if it is a helicopter entrance, if the helicopter entrance door is made into two parts, upper and lower, and the lower door is closed, the upper part that is not closed also serves as a window.)

[0045] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0046] Figure 1 is a schematic diagram of a fire extinguishing system and a fire fighting aircraft equipped with the same according to an embodiment of the present invention, Figure 2 is a top cross-sectional view of a fire extinguishing system and a fire-fighting aircraft equipped with the same according to an embodiment of the present invention, Figure 3 yes Figure 2 A top view of a state where a fire extinguisher container is loaded in an aircraft. Figure 4 is a diagram for explaining the structure of the fire extinguishing system of the present invention, Figure 5 is a side sectional view for explaining an embodiment of a sway suppression device provided inside a fire extinguishing agent container in a fire extinguishing system of the present invention, Figure 6 is a side sectional view for explaining another embodiment of the sway suppression device provided inside the fire extinguishing agent container in the fire extinguishing system of the present invention, Figure 7 is a top cross-sectional view for explaining another embodiment of a sway suppression device provided inside a fire extinguishing agent container in a fire extinguishing system of the present invention, Figure 8 for Figure 7 Magnified view of section "A".

[0047] Reference Figures 1 to 4 A firefighting aircraft 1 according to an embodiment of the present invention may include an aircraft 2 and a fire extinguishing system 3 .

[0048] The aircraft 2 may include a cockpit 21 , a cargo hold 22 , a partition wall 23 , a loading ramp 24 , and an access section 25 .

[0049] The cargo hold 22 may be partitioned by the cab 21 and the partition wall 23 , and provides a space in which a fire extinguishing agent container 31 may be loaded.

[0050] In order to load or unload the fire extinguishing agent container 31 from land, a loading ramp 24 may be provided at the rear of the cargo hold 22 .

[0051] The access portion 25 may be disposed on the side of the cargo hold 22 for positioning the launching device 33 of the fire extinguishing system 3 .

[0052] In order to load the fire extinguishing agent container 31 from land into the cargo hold 22 , the above-mentioned aircraft 2 may further include a loading device 26 disposed on the partition wall 23 side of the cargo hold 22 .

[0053] The loading device 26 may be a winder 261 that connects the fire extinguisher container 31 with a wire rope 262 and pulls the fire extinguisher container 31 into the cargo hold 22, but it is not limited to this and may also include a device that can load and unload the fire extinguisher container 31, which is obvious.

[0054] In addition, the aircraft 2 may further include a container fixing device 27 disposed at the bottom of the cargo hold 22 to fix the fire extinguishing agent container 31 .

[0055] The container fixing device 27 may include a front fastening portion 271 , a rear fastening portion 272 , and a wheel fastening portion 273 .

[0056] The front fastening portion 271 may be provided to correspond to the front width of the fire extinguisher tank 31 , and may fix the front of the fire extinguisher tank 31 .

[0057] This front fastening portion 271 may be referred to as a main fastening portion for fixing the fire extinguishing agent container 31, and may be disposed at the bottom of the cargo hold 22 in a fixed manner because no interference occurs when the fire extinguishing agent container 31 is loaded into the cargo hold.

[0058] like Figure 2 and Figure 3 As shown, the front fastening portion 271 can be provided as a pair to fix the front two corner portions of the fire extinguishing agent container 31. In this embodiment, although the front fastening portion 271 is described as being provided as a pair, it is not limited thereto and can also be provided to fix the entire front surface including the front two corner portions.

[0059] The rear fastening portion 272 may be provided to correspond to the rear width of the fire extinguisher tank 31 , and may fix the rear of the fire extinguisher tank 31 .

[0060] Since such a rear fastening portion 272 may interfere when the fire extinguisher tank 31 is loaded into the interior of the cargo hold 22 through the loading ramp 24, it may be variably provided at the bottom of the cargo hold 22 in order to avoid interference.

[0061] That is, the rear fastening portion 272 may be provided as a pair to fix the rear side corner portions of the fire extinguishing agent container 31, and may be variable in the following manner, that is, as shown in FIG. Figure 2 As shown in FIG. 1 , before the fire extinguisher container 31 is loaded into the cargo hold 22, it is located at a position wider than the width of the fire extinguisher container 31. Figure 3As shown, when the fire extinguisher container 31 is loaded into the cargo hold 22, the rear corners of the fire extinguisher container 31 can be fixed. The rear fastening portion 272 can be reversely variable when the fire extinguisher container 31 is unloaded from the cargo hold 22 to land.

[0062] When a plurality of wheels 314 are provided on the lower surface of the main body 311 of the fire extinguisher tank 31 , the wheel fastening portion 273 may be provided to correspond to the plurality of wheels 314 and may fix the plurality of wheels 314 of the fire extinguisher tank 31 .

[0063] Since such a wheel fastening portion 273 may interfere when the fire extinguishing agent container 31 is loaded into the interior of the cargo hold 22 through the loading ramp 24, it may be variably provided at the bottom of the cargo hold 22 in order to avoid interference.

[0064] That is, the wheel fastening portion 273 may be provided in a plurality of wheels 314 for fixing the fire extinguishing agent container 31, and may be variable in the following manner, that is, as shown in FIG. Figure 2 As shown, before the fire extinguishing agent container 31 is loaded into the cargo hold 22, it is located in a portion avoiding the path passed by the plurality of wheels 314. Figure 3 As shown, when the fire extinguisher tank 31 is loaded into the cargo hold 22, a plurality of wheels 314 can be fixed. The wheel fastening portion 273 can be reversely variable when the fire extinguisher tank 31 is unloaded from the cargo hold 22 onto land.

[0065] When a plurality of wheels 314 are provided on the lower surface of the main body 311 of the fire extinguisher tank 31 , the aircraft 2 may further include a wheel guide 28 for guiding the plurality of wheels 314 .

[0066] The wheel guide 28 may be provided to extend from the loading ramp 24 toward the partition wall 23 side in order to guide the plurality of wheels 314 when loading the fire extinguisher tank 31 into the cargo hold 22 .

[0067] Such wheel guide 28 may be different depending on the type of wheel 314. As an example, when wheel 314 is a tire type, wheel guide 28 may be provided in a groove shape, and when wheel 314 is a track type, wheel guide 28 may be provided in a track shape.

[0068] When the launching device 33 of the fire extinguishing system 3 is variable, the aircraft 2 may further include a guide rail 29 for guiding the launching device 33 .

[0069] The guide rail 29 can be configured to extend a certain length from the entrance and exit portion 25 to the inner side of the cargo hold 22, allowing the launch device 33 to slide back and forth to adjust the position, and a limiter (not shown) can be provided to fix the adjusted position of the launch device 33.

[0070] As described above, the aircraft 2 of the present invention basically includes a cockpit 21, a cargo hold 22, a loading ramp 24 and an access portion 25. In addition, in order to include a fire extinguishing system 3 including a mobile fire extinguishing agent container 31 that can be carried in the cargo hold 22, it can be constructed to also include a loading device 26, a container fixing device 27, a wheel guide portion 28 and a guide rail 29.

[0071] In addition, although not shown in the figure, the aircraft 2 of the present invention may also include components required for forest fire extinguishing, such as headlights, approach warning devices, heat detection alarm devices, cameras, etc.

[0072] The headlight is necessary for nighttime firefighting. The headlight of this embodiment is usually not used for nighttime flying, but can be arranged near the launching device 33 for use by firefighters aboard the aircraft 2 when extinguishing fires at night.

[0073] The approach warning device is a device that emits a warning sound when other aircraft are approaching the aircraft 2 , and can be set in the blind spots on both sides of the aircraft 2 .

[0074] Normally, when multiple aircraft are jointly performing tasks during forest fire fighting, especially during nighttime fire fighting, there are many cases where aircraft pilots are unaware of the approach of other aircraft and are exposed to dangerous conditions. The proximity warning device can inform the pilot of this dangerous situation to ensure flight safety.

[0075] The heat detection alarm device is a device that emits a warning sound when the aircraft 2 approaches a fire scene, and can be arranged at the bottom of the aircraft 2.

[0076] Normally, when fighting a forest fire, due to the uneven height of the mountains, gullies and other terrain features, it is possible that the pilot may approach the fire scene without realizing it. The thermal detection alarm device can notify the pilot of this dangerous situation to ensure flight safety.

[0077] The camera can be set at the bottom of the aircraft 2 to observe when a fire breaks out accidentally under the aircraft 2 during forest fire fighting or when a residual fire is extinguished. The camera can be linked to the display 336. At this time, the display 336 can be provided with six buttons (e.g., left / right / up / down arrow buttons and zoom in / out buttons), and a small red cross is drawn in the center of the screen. When the "zoom in" button is pressed, the part is enlarged, and when the "zoom out" button is pressed, the part is reduced. If the part to be enlarged is other parts of the screen, the left / right / up / down buttons can be used to move the red cross.

[0078] The cameras may include heat detection cameras, which can help fight fires not only at night but even during the day in locations that are difficult to identify with the naked eye, such as dense forests.

[0079] The fire extinguishing system 3 provided in the above-mentioned aircraft 2 is described in detail below.

[0080] The fire extinguishing system 3 may include a fire extinguishing agent container 31, a pump 32, and a launching device 33, and may be arranged in the aircraft 2 in a manner similar to the manner in which firefighters extinguish fires on land. However, the fire extinguishing agent container 31 may be configured to be stored on land and to be loaded in the aircraft 2 when extinguishing a forest fire.

[0081] The fire extinguisher container 31 is a container for storing the fire extinguisher FA. It is usually kept on land. When extinguishing a forest fire, it can be carried in the cargo hold 22 of the aircraft 2. In the present embodiment, the fire extinguisher container 31 is described as being carried in the cargo hold 22 of the aircraft 2, but of course it can also be fixed in the cargo hold 22. In addition, in the present embodiment, the fire extinguisher container 31 is illustrated as a rectangular parallelepiped, but it is not limited to this. That is, the fire extinguisher container 31 does not have to be a rectangular parallelepiped. If the pump 32 is placed between the firefighter and the front seat, and the launch device 33 is installed in the helicopter window between the side entrance of the aircraft 2 and the pump 32, the space between the firefighter and the rear door is left. Therefore, this part can be used to expand the fire extinguisher container 31 with the concept of increasing a small rectangular parallelepiped to load more fire extinguisher FA. This can be achieved by loading the fire extinguisher container 31 from the rear of the helicopter. However, in this case, the container fixing device 27 should be made stronger. This is because the four corners are likely to be subjected to different forces. In addition, the fire extinguishing agent container 31 may be provided with an entrance at the top so that personnel can enter from the top to clean and maintain the interior of the container.

[0082] Here, the fire extinguishing agent FA may include water and / or a moisture enhancer such as foam and gel, but is not limited thereto.

[0083] The fire extinguishing agent container 31 can be loaded onto the aircraft 2 from land via the loading device 26 provided in the cargo hold 22, and can be loaded and unloaded onto the container fixing device 27 provided in the cargo hold 22. In the present embodiment, the loading or unloading of the fire extinguishing agent container 31 using the loading device 26 is described, but it is not limited thereto, and a forklift or the like can also be used, and it is obvious that the forklift can directly lift the container and push it into the rear door.

[0084] The fire extinguishing agent container 31 may include a main body 311 , an inlet 312 , an outlet 313 , and wheels 314 .

[0085] The body 311 can store the fire extinguishing agent FA and can be manufactured into a shape suitable for the cargo hold 22. In this embodiment, the body 311 is described as a hexahedron, but it is not limited thereto and can be manufactured into various shapes to maximize the loading capacity of the fire extinguishing agent FA, which is obvious.

[0086] The inlet 312 may be provided at a portion of the main body 311 , for example, at an upper surface thereof, so that the fire extinguishing agent FA may be stored from the outside into the inside of the main body 311 .

[0087] The outflow port 313 may be provided at a portion of the main body, such as the rear side, so that the fire extinguishing agent stored in the main body 311 can be supplied to the launching device 33, and can be connected to the pump 32 combined with the first fire hose 34. At the outflow port 313, a switch device such as a faucet may be provided to lock and open when connected or disconnected with the fire hose.

[0088] A plurality of wheels 314 may be provided on the lower surface of the main body 311 so that the fire extinguishing agent container 31 can be loaded from land to the cargo hold 22 of the aircraft 2 or unloaded from the cargo hold 22 to land.

[0089] The fire extinguishing agent container 31 constructed as described above can be loaded from land to the cargo hold 22 or unloaded from the cargo hold 22 to land by means of a loading device 26 provided on the aircraft 2. During loading or unloading, the plurality of wheels 314 can be guided by a wheel guide 28 provided in a manner extending from the loading ramp 24 of the aircraft 2 toward the partition wall 23 side.

[0090] In addition, the fire extinguisher container 31 can be fixed to the bottom of the cargo hold 22 by a container fixing device 27 including fastening parts such as a front fastening part 271, a rear fastening part 272, and a wheel fastening part 273, so as to prevent it from shaking when being flown by the aircraft 2 or when extinguishing a forest fire while being carried in the cargo hold 22.

[0091] In order to prevent the movement of the aircraft 2 from being hindered by the shaking of the fire extinguishing agent FA stored in the main body 311, the fire extinguishing agent container 31 may also include a shaking suppression device 315, 316 arranged inside the main body 311, referring to Figures 4 to 8 Provide explanation.

[0092] First, refer to Figure 5 The following describes the sway suppression device 315 provided inside the fire extinguishing agent container 31 in the fire extinguishing system 3 of the present invention.

[0093] The sloshing suppression device 315 may include a porous plate 3151 and a baffle 3152 .

[0094] The porous plate 3151 is formed by forming a plurality of flow holes through which the fire extinguishing agent FA can flow on a plate having a certain height, and at least one of the porous plates 3151 may be provided at a certain height upward from the lower surface of the main body 311 .

[0095] Such a porous plate 3151 can prevent a large amount of fire extinguishing agent FA from being thrown to one side in an instant, thereby reducing the impact load applied to the side plate of the fire extinguishing agent container 31.

[0096] A plurality of buffer plates 3152 may be provided at a certain height from the inner side surface of the main body 311 toward the inner side.

[0097] The plurality of buffer plates 3152 protrude toward the inner side of the main body 311 by a predetermined length, and may be spaced apart at predetermined intervals along a vertical direction.

[0098] The plurality of buffer plates 3152 may be arranged to be parallel to the upper surface of the fire extinguishing agent container 31 and perpendicular to the side surface, and may be formed into a flat plate shape having a preset thickness. However, the plurality of buffer plates 3152 are not limited thereto, and the cross-sectional shape may be formed into a protrusion shape such as a triangle or a trapezoid protruding to the inside of the main body 311 by a preset length.

[0099] When the fire extinguishing agent FA sways inside the fire extinguishing agent container 31 due to the flight of the aircraft 2 and the fire extinguishing agent FA flowing left and right or front and back hits the side plate of the fire extinguishing agent container 31, air pockets are generated between the fire extinguishing agent FA hitting the side plate and the side plate. Thus, the air pockets play a buffering role between the fire extinguishing agent FA and the side plate, thereby reducing the impact pressure applied to the fire extinguishing agent container 31.

[0100] The sway suppression device 315 may be formed by a combination of the porous plate 3151 and the buffer plate 3152 described above, but is not limited thereto and may be formed by either the porous plate 3151 or the buffer plate 3152 .

[0101] Reference Figures 6 to 8 Another sway suppression device 316 provided inside the fire extinguishing agent container 31 in the fire extinguishing system 3 of the present invention will be described.

[0102] The sloshing suppression device 316 may include a buoyancy plate 3161 , a flow hole 3162 , a guide member 3163 , and a sliding member 3164 .

[0103] The buoyancy plate 3161 can be configured to be a plate shape that can cover the entire upper surface of the fire extinguishing agent FA stored in the fire extinguishing agent container 31, and can have a plurality of flow holes 3162 that pass through the upper and lower parts and are spaced at certain intervals so that the fire extinguishing agent FA can flow into the fire extinguishing agent container 31.

[0104] By forming a plurality of flow holes 3162 on the buoyancy plate 3161 in this way, not only can the fire extinguishing agent FA stored in the fire extinguishing agent container 31 naturally flow into the fire extinguishing agent container 31 through the flow holes 3162 from the upper part of the buoyancy plate 3161, but also when the fire extinguishing agent FA shakes inside the fire extinguishing agent container 31 due to the flight of the aircraft 2, the water surface of the fire extinguishing agent FA can be pressed to suppress the shaking of the fire extinguishing agent FA, thereby reducing the impact pressure applied to the fire extinguishing agent container 31.

[0105] The buoyancy plate 3161 is always located on the upper surface (water surface) of the fire extinguishing agent FA through the guide member 3163 and the sliding member 3164 regardless of the high or low liquid level of the fire extinguishing agent FA.

[0106] The guide member 3163 may be disposed on the side surface of the main body 311 of the fire extinguisher tank 31 along the longitudinal direction, and may be arranged in plurality at regular intervals in the transverse direction.

[0107] The guide member 3163 may be formed in a groove shape so that the sliding member 3164 can slide up and down when inserted. Based on the cross-sectional shape, the guide member 3163 may have a cross-sectional shape of various shapes such as a quadrilateral, a polygon, a T-shape, etc., and may be formed with a groove into which one end of the sliding member 3164 can be inserted.

[0108] The sliding member 3164 can be formed in multiple forms corresponding to the guide members 3163 , one end of which can be connected to each of the multiple guide members 3163 in a manner that allows it to rise and fall along the upper surface liquid level of the fire extinguishing agent FA, and the other end of which can be fixed to the edge of the buoyancy plate 3161 .

[0109] As described above, the sway suppression device 316 can effectively suppress the sway of the fire extinguishing agent FA by making the buoyancy plate 3161 always located on the upper surface (water surface) of the fire extinguishing agent FA regardless of the high or low liquid level of the fire extinguishing agent FA using the guide member 3163 and the sliding member 3164.

[0110] The pump 32 can pump the fire extinguishing agent FA stored in the fire extinguishing agent container 31. The pump 32 can be connected to the fire extinguishing agent container 31 through a first fire hose 34, and connected to the launch tube 331 of the launch device 33 through a second fire hose 35.

[0111] The pump 32 may be provided in the cargo hold 22 of the aircraft 2 and may be a high pressure pump for both drainage and water supply. Of course, the pump 32 may be provided in a part of the fire extinguishing agent container 31.

[0112] The pump 32 can be operated as a drainage pump during fire extinguishing. At this time, the fire extinguishing agent FA can be pumped to the nozzle 3311 through the first fire hose 34 connected to the outlet 313 of the fire extinguishing agent container 31 and the second fire hose 35 connected to the launch tube 331 of the launch device 33 to launch the fire extinguishing agent FA. It is preferable that the second fire hose 35 has a sufficient length. This is because when the launch tube 331 is made to spray the fire extinguishing agent FA at a nearly vertical downward angle and at a high pressure, the pressure must be taken into consideration.

[0113] In addition, when the fire extinguisher container 31 is carried in the cargo hold 22, the fire extinguisher FA stored in the fire extinguisher container 31 is completely consumed, and the storage location of the fire extinguisher container 31 filled with the fire extinguisher FA is far away but the water source is close, the pump 32 can operate as a water supply pump to fill the empty fire extinguisher container 31 with water (new fire extinguisher) from the water source.

[0114] When the pump 32 operates as a water supply pump, the first fire hose 34 can be separated from the outlet 313 and connected to the inlet 312 of the fire extinguishing agent container 31, the second fire hose 35 can be separated from the launching tube 331 and connected to the third fire hose (not shown), and the third fire hose can be lowered to the water source, so that the water (new fire extinguishing agent) at the water source can be pumped into the emptied fire extinguishing agent container 31.

[0115] In the above, the third fire hose can be separately provided in the storage box 36 provided in the cargo hold 22, and can be a fire hose having a sufficient length to reach the water source from the aircraft 2. The storage box 36 can store not only the third fire hose, but also the first fire hose 34, the second fire hose 35 and other fire-related components, tools for maintenance, etc., and can be provided in the free space of the cargo hold 22.

[0116] This third fire hose can be connected to the second fire hose 35 at one end and have a length extending to a water source on land, and has a hollow cylindrical body at the other end, and has an inlet pipe at the upper part of one side of the body for water (new fire extinguishing agent) from the water source to flow in in order to prevent the influx of foreign matter.

[0117] As described above, in this embodiment, by using the pump 32 as a dual-purpose drainage and water supply pump and providing a separate third fire hose, when the fire extinguishing agent FA in the fire extinguishing agent container 31 carried in the cargo hold 22 is completely exhausted during the forest fire extinguishing process, even if the fire extinguishing agent container 31 carrying the fire extinguishing agent FA is not moved to a storage place on land where the fire extinguishing agent container 31 storing the fire extinguishing agent FA is stored and replaced with a new fire extinguishing agent container, new fire extinguishing agent can be replenished by moving to the water source closest to the forest fire extinguishing site.

[0118] The fire extinguisher container 31 of this embodiment can be always equipped in a designated storage place on land in consideration of areas prone to forest fires, etc. However, if a forest fire occurs in a place far away from the storage place, a vehicle such as a trailer can be used to transport it to an open space at the scene of the forest fire, so that the aircraft 2 can replace the fire extinguisher container 31 at a close distance.

[0119] The fire extinguisher tank 31 constructed as described above can also be manufactured to a size that is easy to transport on land by a forklift or the like. For example, the fire extinguisher tank 31 can be manufactured to a size that allows two of them to be loaded in series in an aircraft 2 with a long interior such as a Chinook helicopter. The fire extinguisher tank 31 manufactured in this way can include a structure for connecting a fire hose at the bottom so that the fire extinguisher FA can be moved to an adjacent fire extinguisher tank 31 when connected in series.

[0120] The launching device 33 may be disposed near the entrance and exit portion 25 of the aircraft 2 and may launch the fire extinguishing agent FA pumped from the pump 32 to extinguish a fire.

[0121] The launching device 33 may include a launching tube 331, a supporting portion 332, a rotating portion 333, a manipulating portion 334, a control portion 335 and a display 336. Figure 4 Provide explanation.

[0122] The launching tube 331 may be connected to the pump 32 via the second fire hose 35 and may include a nozzle 3311 for injecting or spraying the fire extinguishing agent FA pumped from the pump 32 .

[0123] The launch tube 331 can be configured to rotate up and down, left and right by a certain angle through the operation of the operating unit 334, and thus the fire extinguishing agent FA can be sprayed or sprayed at various angles to effectively extinguish the fire. Since the water pressure emitted when the nozzle 3311 of the launch tube 331 is directed toward the side of the aircraft 2 may cause danger, the angle of rotation up and down, left and right can be set to any angle taking the above situation into consideration. In addition, the upward angle of the launch tube 331 is preferably 30 degrees upward to maximize the emission distance of the fire extinguishing agent FA, while preventing the fire extinguishing agent FA from being emitted to the propeller of the helicopter, and the downward angle of the launch tube 331 is preferably close to 90 degrees downward to extinguish the fire directly below the aircraft 2.

[0124] The support portion 332 may be disposed in the cargo hold 22 and may be supported and fixed so that the launch tube 331 can withstand water pressure.

[0125] The support part 332 can be set on the guide rail 29 provided in the cargo hold 22. The support part 332 can be arranged at the best position when the fire is extinguished, and can slide forward and backward along the guide rail 29 so that it can be safely stored after the fire is extinguished. Of course, the support part 332 can also be fixed to the bottom of the cargo hold 22 instead of being set on the guide rail 29.

[0126] The rotating part 333 may be disposed between the supporting part 332 and the launching tube 331 , so that the launching tube 331 can rotate up and down and left and right. The rotating part 333 may include a rotating gear box 3331 and a rotating member 3332 .

[0127] The rotating gear box 3331 may be fixedly mounted on the upper portion of the supporting portion 332 .

[0128] The rotating gear box 3331 may operate in such a manner that the rotating member 3332 freely rotates or forcibly rotates according to the manipulation of the manipulation portion 334 , and this operation will be described below.

[0129] The rotating member 3332 may be disposed between the rotating gear box 3331 and the launching tube 331 .

[0130] The rotating member 3332 can be linked to the movement of the rotating gear box 3331 and can rotate forward, backward, left, and right according to the operation of the operating unit 334.

[0131] The control unit 334 may be arranged to surround the launch tube 331 and control the direction of the nozzle 3311 of the launch tube 331 upward, downward, leftward, and rightward. After the control unit 334 horizontally moves the support unit 332 in a manner that the launch tube 331 further protrudes toward the outside of the aircraft 2, the nozzle 3311 of the launch tube 331 is rotated downward, thereby fully ensuring the downward angle of the nozzle 3311 when the fire is extinguished. In addition, the control unit 334 may be configured to be adjustable in height, so that after the control unit 334 is vertically moved, the launch tube 331 is rotated downward, thereby fully ensuring the downward angle of the nozzle 3311 when the fire is extinguished. In addition, the support portion 332 may be composed of a fixed portion and a rotating portion. In this case, the fixed portion is disposed on the guide rail 229, and the rotating portion is rotatably disposed at the upper end of the fixed portion using an angle adjustment device (not shown). Thus, after the fixed portion is horizontally moved in a manner that allows the launch tube 331 to further protrude toward the outside of the aircraft 2, the rotating portion is rotated in a manner that allows the downward angle of the launch tube 331 to approach verticality, thereby fully ensuring the downward angle of the nozzle 3311 when the fire is extinguished.

[0132] The control unit 335 can be linked with the display 336 that displays various function buttons (not shown) and notifies the current situation, and can be linked with various sensors (not shown) that detect the operation of the operating unit 334 and the remaining amount of the fire extinguishing agent FA stored in the fire extinguishing agent container 31, so as to control each of the pump 32, the rotating unit 333 and the nozzle 3311, and notify the remaining amount of the fire extinguishing agent FA.

[0133] In the above, the display 336 can be a directly pressed button type display rather than a screen touch type display. This is because, due to the characteristics of fire extinguishing, the firefighter's hands will inevitably have moisture (in addition to touching the launcher, moisture may remain on the hands during operations such as replacing the container), so it is preferred to set the display 336 in a directly pressed button type rather than a screen touch type. Since the display 336 has only a few functions, buttons are feasible, but the part of the control control unit 335 is preferably made into a structure that takes moisture into consideration. In order to solve the problem caused by moisture, the screen of the display 336 can be covered with waterproof transparent plastic.

[0134] In this embodiment, the display 336 is shown to be provided on the operating unit 334, but the present invention is not limited thereto. That is, the display 336 may be provided at any place where the firefighter can easily see and operate it.

[0135] The control unit 335 can control the pump 32 by selecting whether the pump 32 is to be operated (on or off) on the display 336 .

[0136] The control unit 335 can control the rotating unit 333 by selecting a forward, backward, leftward, or rightward rotating function (a manual function or a semi-automatic function) of the rotating unit 333 on the display 336 .

[0137] In the above, when the forward, backward, left and right rotation function of the rotating part 333 is selected as a manual function on the display 336, the control part 335 can control the action of the rotating gear box 3331 to make it into a closed state, thereby allowing the rotating member 3332 to rotate freely according to the operation of the operating part 334.

[0138] In addition, when the display 336 selects the forward, backward, left and right rotation function of the rotating part 333 as a semi-automatic function, the control part 335 can control the movement of the rotating gear box 3331 to make it open, thereby controlling the rotating member 3332 to be forced to rotate or forcibly fixed according to whether the operating part 334 is operated or not.

[0139] In addition, when the sensor for detecting the manipulation of the manipulation unit 334 detects manipulation, the control unit 335 controls the rotating gear box 3331 to realize gear rotation, thereby forcing the rotating member 3332 to rotate in any direction of the forward, backward, left, and right directions corresponding to the manipulation direction of the manipulation unit 334, thereby enabling the nozzle 3311 of the launch tube 331 to move in any direction of the upward, downward, left, and right directions.

[0140] In addition, when the sensor for detecting the manipulation of the manipulation part 334 does not detect the manipulation, the control part 335 controls the rotating gear box 3331 to stop the rotation of its gears, thereby forcibly fixing the rotating member 3332 during the period without the manipulation of the manipulation part 334, so that the launching tube 331 can be fixed in a state of maintaining the direction of the nozzle 3311.

[0141] The control unit 335 can control the nozzle 3311 by selecting the emission method (injection method or spraying method) of the fire extinguishing agent FA injected through the nozzle 3311 on the display 336 .

[0142] The control part 335 can control the nozzle 3311 by selecting the emission pressure (high pressure, medium pressure, or low pressure) of the fire extinguishing agent FA sprayed through the nozzle 3311 on the display 336 .

[0143] The control unit 335 displays the remaining amount value measured by the sensor for detecting the remaining amount of the fire extinguishing agent FA stored in the fire extinguishing agent container 31 on the display 336 in real time, and can issue an alarm when the measured remaining amount value reaches a preset value. The preset value can be a remaining amount value corresponding to the height of the outlet 313 of the fire extinguishing agent container 31.

[0144] As described above, in this embodiment, although it is described that the fire extinguishing system 3 is electrically controlled by the control unit 335, since a large amount of fire extinguishing agent FA such as water will inevitably remain inside the aircraft 2, or the fire extinguishing system 3 may not be able to extinguish the fire due to erroneous operation due to some collision or electrical failure, the fire extinguishing system 3 can remove all electrical elements such as the control unit 335 and only consist of mechanical elements required for fire extinguishing.

[0145] As described above, this embodiment can overcome the geographical limitations of existing fire extinguishing methods. That is, the fire-fighting aircraft 1 of the present invention can directly transport the fire-fighting agent container 31 filled with fire-fighting agent to the forest fire extinguishing site by arranging a fire-fighting agent container 31 that can be carried and replaced in the aircraft 2. Therefore, in the early stage of the forest fire alarm, the fire-fighting agent can be directly and quickly carried to the forest fire extinguishing site regardless of the water source. Just like a fire truck on land directly brings water to the fire scene when a fire alarm is issued.

[0146] In addition, the present embodiment can overcome the inefficiency of the existing fire extinguishing methods. That is, the firefighting aircraft 1 of the present invention is equipped with a fire extinguishing system 3 on the aircraft 2 in a manner similar to the way firefighters extinguish fires on land, so that firefighters can directly observe the forest fire scene and intensively spray or spray fire extinguishing agents such as water, thereby effectively extinguishing forest fires without wasting fire extinguishing agents unnecessarily.

[0147] In addition, the present embodiment can reduce the flight danger of the existing fire-fighting method. That is, the fire-fighting aircraft 1 of the present invention is different from the existing method in that the pilot only focuses on driving and does not perform the operation of collecting water from the water source or spraying the water on the fire. In other words, the fire-fighting itself is the responsibility of the firefighters who are riding on the aircraft 2, so the pilot can only focus on driving, which can greatly reduce flight accidents. Moreover, the fire-fighting method itself is more efficient than the existing method, so not only does it reduce the waste of water, the number of flights is also reduced accordingly, and most importantly, the danger of having to fly very low above the water is eliminated.

[0148] As described above, the fire-fighting aircraft 1 of the present embodiment can overcome the three problems of the existing forest fire extinguishing methods described above (inefficient fire-fighting methods, geographical restrictions and flight hazards), so the fire department can establish a systematic forest fire extinguishing system. That is, for example, assuming that there is a huge forest fire potential area, there will be multiple cities or villages around or within the forest fire potential area. If it is assumed that the fire-fighting aircraft 1 of the present embodiment also uses tap water as a fire extinguishing agent like a fire truck on land, then those cities or villages that produce tap water become the target areas for the supply of fire extinguishing agent (water). In these target areas, several areas are appropriately selected to configure the fire-fighting aircraft 1 of the present embodiment. At this time, if the area that must be responsible for the place to be configured is inevitably large, multiple fire-fighting aircraft 1 of the present embodiment are configured in proportion, and if the area responsible is small, the configuration is reduced in proportion. Of course, the take-off and landing field of the fire-fighting aircraft 1 of the present embodiment is set in the selected area, and a pump facility that can act as a large faucet by filling the empty fire extinguishing agent container 31 is built. In order to deal with large forest fires, it is preferred to build several pump facilities. This is to load multiple empty fire extinguisher containers 31 at the same time. In addition, a large number of redundant fire extinguisher containers 31 are prepared. This is also the same reason. Therefore, if a forest fire alarm is received, the fire-fighting aircraft 1 of the present embodiment that is closest to the selected fire-extinguishing agent supply site will be dispatched to extinguish the fire. In addition, during their execution of fire extinguishing, other fire-fighting aircraft 1 of the present embodiment at a farther location will rush to help extinguish the fire. If it is to this extent, given the speed of the fire-fighting aircraft 1 of the present embodiment, it is likely that the fire can be extinguished. However, if the fire-fighting aircraft 1 of the present embodiment that is dispatched first fails to extinguish the forest fire in the first takeoff and further fire-fighting operations must be carried out, it is necessary to return to the fire-extinguishing agent supply site, quickly replace the fire-extinguishing agent container 31 filled with fire-extinguishing agent, and go to the forest fire area again. In addition, at the fire-extinguishing agent supply site, multiple water supply facilities (pump facilities) are used to simultaneously load empty fire-extinguishing agent containers 31. Therefore, even if the fire-fighting aircraft 1 of the present embodiment that arrives at the forest fire scene for the second time to perform fire-fighting operations fails to complete the fire extinguishing, it will also go to a nearby area to replace the fire-extinguishing agent container 31. Of course, if the fire extinguishing agent supply facility (pump facility, etc.) at the fire extinguishing agent supply site closest to the forest fire area does not have enough time to refill the empty fire extinguishing agent container 31 of the returning fire-fighting aircraft 1 of the present embodiment with fire extinguishing agent, the same operation is repeated at the fire extinguishing agent selection site that is second closest to the forest fire area. This can be achieved by wireless communication between pilots or between fire extinguishing agent supply sites.

[0149] If the number of fire-fighting aircraft 1 of the present embodiment is sufficient, and the above-mentioned method is used and the wind is not so strong that the fire-fighting aircraft 1 of the present embodiment cannot take off, it is sufficient to carry out initial fire extinguishing regardless of the forest fire. However, even if the forest fire inevitably becomes larger due to strong wind or some other conditions, as long as sufficient excess fire extinguishing agent containers 31 are prepared in advance, the fire can be extinguished more systematically and effectively than the existing method. This is because the fire extinguishing method itself is efficient and the fire extinguishing agent can be smoothly supplied.

[0150] In addition, the firefighting aircraft 1 of this embodiment is different from the existing methods in that there is no danger of having to fly at a very low altitude above the water source, so if a headlight is properly installed on the firefighting aircraft 1 of this embodiment, it is not difficult to fly at night. This is because the fire extinguishing agent supply area is as bright as during the day anyway, and the fire in the forest fire area itself is very dazzling.

[0151] In addition, the fire-fighting aircraft 1 of this embodiment can also be used for other tasks of the fire department, namely rescue activities or emergency transportation activities in remote areas. This is because the fire extinguishing agent container 31 is detachable.

[0152] In the above, the present invention is described around the embodiments of the present invention, but this is only an example and does not limit the present invention. Anyone skilled in the art to which the present invention belongs can know that various combinations or modifications and applications not illustrated in the embodiments can be made within the scope of the essential technical content of the embodiments. Therefore, the technical contents involved in the modifications and applications that can be easily derived from the embodiments of the present invention should be interpreted as included in the present invention.

Claims

1. A fire extinguishing system, which is installed in the cargo hold of an aircraft to extinguish fire, in, include: a fire extinguishing agent container, loaded in the cargo hold, for storing the fire extinguishing agent; a pump connected to the fire extinguishing agent container via a first fire hose to pump the fire extinguishing agent; and a launching device for launching the fire extinguishing agent pumped from the pump to extinguish the fire, The transmitting device comprises: a launching tube having a nozzle, the nozzle being connected to the pump via a second fire hose and ejecting or spraying the fire extinguishing agent pumped from the pump; A support portion, disposed in the cargo hold; A rotating part, arranged between the supporting part and the launching tube, so that the launching tube can rotate upward, downward, left and right; A control unit is arranged to surround the launch tube and control the direction of the nozzle of the launch tube upward, downward, leftward and rightward; and The control unit is connected to a display that displays various function buttons and notifies current situations, and is connected to various sensors that detect the operation of the operation unit and the remaining amount of the fire extinguishing agent stored in the fire extinguishing agent tank.

2. The fire extinguishing system according to claim 1, wherein: The rotating part comprises: A rotating gear box is fixedly mounted on the upper portion of the support portion; and The rotating member is arranged between the rotating gear box and the launching tube, and can rotate forward, backward, left and right according to the operation of the operating part.

3. The fire extinguishing system according to claim 2, wherein: The control unit controls the pump by selecting whether the pump is to be operated (on or off) on the display. The rotating part is controlled by selecting a forward, backward, left, right, and right rotation function (manual function or semi-automatic function) of the rotating part on the display. The nozzle is controlled by selecting a launching mode (injection mode or spraying mode) of the fire extinguishing agent sprayed through the nozzle on the display, The nozzle is controlled by selecting the emission pressure (high pressure, medium pressure or low pressure) of the fire extinguishing agent ejected through the nozzle on the display.

4. The fire extinguishing system according to claim 3, wherein: When the control unit selects the forward, backward, left, and right rotation function of the rotating unit as a manual function on the display, The operation of the rotating gear box is controlled to be in a closed state, so that the rotating member can rotate freely according to the operation of the operating part.

5. The fire extinguishing system according to claim 3, wherein: When the control unit selects the front, back, left, and right rotation function of the rotating unit as a semi-automatic function on the display, The operation of the rotating gear box is controlled to be in an open state, and the rotating member is controlled to be forcibly rotated or forcibly fixed according to whether the operating part is operated.

6. The fire extinguishing system according to claim 5, wherein: When the sensor for detecting the manipulation of the manipulation of the manipulation part detects the manipulation, the control part controls the rotating gear box to realize gear rotation, and the rotating member is forced to rotate in any direction of the forward, backward, left, and right directions corresponding to the manipulation direction of the manipulation part, thereby moving the nozzle of the launch tube in any direction of the upward, downward, left, and right directions. When the sensor for detecting the manipulation of the manipulation part detects no manipulation, the rotation gear box is controlled to stop the rotation of its gears, and the rotating member is forcibly fixed during the period when there is no manipulation of the manipulation part, thereby fixing the launch tube in a state where the nozzle direction is maintained.

7. The fire extinguishing system according to claim 3, wherein: The control unit displays a remaining amount value measured by a sensor for detecting a remaining amount of the fire extinguishing agent stored in the fire extinguishing agent container on the display in real time, and issues an alarm when the measured remaining amount value reaches a preset value.

8. The fire extinguishing system according to claim 1, wherein: The support portion is provided on a guide rail provided in the cargo hold, and can slide forward and backward along the guide rail to adjust the position, and is fixed by a limiter provided on the guide rail during fire extinguishing.

9. The fire extinguishing system according to claim 1, wherein: The fire extinguishing agent container comprises: A main body storing the fire extinguishing agent; an inlet, disposed on the upper surface of the main body, to store the fire extinguishing agent inside the main body; an outflow port, provided on a side of the main body and connected to the first fire hose, so as to supply the fire extinguishing agent stored in the main body to the launching device; and A plurality of wheels are provided on the lower surface of the main body so as to be loaded into the cargo hold of the aircraft from land.

10. The fire extinguishing system according to claim 9, wherein: The fire extinguisher tank is loaded from land to the aircraft by a loading device provided in the cargo hold, and is detachably mounted on a tank fixing device provided in the cargo hold.

11. The fire extinguishing system according to claim 9, wherein: The fire extinguishing agent container further includes a sloshing suppression device disposed inside the main body to prevent the movement of the aircraft from being hindered due to sloshing of the fire extinguishing agent stored in the main body.

12. The fire extinguishing system according to claim 11, wherein: The sway suppression device is formed by either one or a combination of at least one porous plate arranged at a certain height upward from the lower surface of the main body and a plurality of buffer plates arranged at a certain height inward from the inner side of the main body.

13. The fire extinguishing system according to claim 11, wherein: The sway suppression device comprises: a buoyancy plate, covering the upper surface of the fire extinguishing agent, and having a plurality of flow holes; a plurality of guide members, which are arranged on the side of the main body along the longitudinal direction and are arranged at a certain interval in the transverse direction; and A plurality of sliding members have one end connected to each of the plurality of guide members in a manner capable of rising and falling according to the upper surface liquid level of the fire extinguishing agent, and the other end fixed to the edge of the buoyancy plate.

14. The fire extinguishing system according to claim 9, wherein: The pump is a water-drainage and water-supply pump installed in the cargo hold of the aircraft or in a part of the fire-extinguishing agent container. During fire extinguishing, the pump acts as a drainage pump, and the fire extinguishing agent is ejected from the nozzle through the first fire hose connected to the outflow port of the fire extinguishing agent container and the second fire hose connected to the launching tube of the launching device. When the fire extinguishing agent container is loaded into the cargo hold and new fire extinguishing agent is replenished during flight, the pump operates as a water supply pump, and the first fire hose is separated from the outflow port and connected to the inflow port of the fire extinguishing agent container, and the second fire hose is separated from the launching tube and connected to the third fire hose, thereby replenishing the new fire extinguishing agent.

15. The fire extinguishing system according to claim 14, wherein: One end of the third fire hose is connected to the second fire hose and has a length extending to a water source on land, and the other end has a cylindrical body with a hollow interior, and an inlet pipe for the new fire extinguishing agent to flow into the upper part of one side of the body to prevent the inflow of foreign matter.

16. A firefighting aircraft, in, include: The fire extinguishing system according to claim 1; and the aircraft provided with the fire extinguishing system, The aircraft comprises: Cab; The cargo hold is separated by a partition wall and carries the fire extinguishing agent container; a loading ramp, disposed at the rear of the cargo hold, for loading or unloading the fire extinguishing agent container from land; and The access portion is arranged on the side of the cargo hold for positioning the launching device.

17. The firefighting aircraft according to claim 16, wherein: It also includes a loading device, which is arranged on the partition wall side of the cargo hold to load the fire extinguishing agent container from land into the cargo hold, The loading device is a winding machine that connects the fire extinguishing agent container with a steel wire rope and pulls the container into the cargo hold.

18. The firefighting aircraft according to claim 16, wherein: It also includes a container fixing device disposed at the bottom of the cargo hold and fixing the fire extinguishing agent container. The container fixing device comprises: A front fastening portion, which is arranged to correspond to the front width of the fire extinguishing agent container and is fixedly arranged at the bottom of the cargo hold to fix the front of the fire extinguishing agent container; a rear fastening portion, which is arranged to correspond to the rear width of the fire extinguisher container and is variably arranged at the bottom of the cargo hold to avoid interference when the fire extinguisher container is loaded into the interior of the cargo hold and to secure the rear of the fire extinguisher container; and The wheel fastening part is arranged to correspond to the multiple wheels arranged on the lower surface of the main body of the fire extinguishing agent container, and is variably arranged at the bottom of the cargo hold to avoid interference when the fire extinguishing agent container is loaded into the interior of the cargo hold, and to fix the multiple wheels.

19. The firefighting aircraft according to claim 16, wherein: It also includes a wheel guide extending from the loading ramp toward the partition wall side to guide a plurality of wheels provided on the lower surface of the main body of the fire extinguisher container when the fire extinguisher container is loaded into the cargo hold.

20. The firefighting aircraft according to claim 16, wherein: It also includes a guide rail, which is configured to extend a certain length from the entrance and exit portion to the inner side of the cargo hold for the launch device to slide back and forth to adjust the position, and is provided with a limiter to fix the launch device after the position is adjusted.

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