Remote jet fire extinguishing device for unmanned aerial vehicle

Abstract

The invention discloses a remote jet fire extinguishing device for an unmanned aerial vehicle, and belongs to the field of unmanned aerial vehicles, the remote jet fire extinguishing device comprises the unmanned aerial vehicle, the unmanned aerial vehicle is provided with a protection piece replacement mechanism, the unmanned aerial vehicle comprises a first fuselage, a first mounting plate is rotatably arranged at the bottom of the first fuselage, and a first jet pipe and a second jet pipe with adjustable spacing are detachably mounted on the first mounting plate; the protection piece replacement mechanism comprises a box body, the box body is fixed to the unmanned aerial vehicle, a sealing door is rotatably arranged on the box body, a camera is detachably installed in the box body, a storage area and a storage area are arranged in the box body and located above and below the camera, a first baffle is slidably arranged on the storage area, and a second baffle is slidably arranged in the storage area. Movement can be achieved through the propellers of the unmanned aerial vehicle, when the distance between buildings is too small, the included angle of the multiple rotating arms is rotationally adjusted, the size of the unmanned aerial vehicle is changed, and the four sets of walking wheels are attached to the walls of the two sides defining the slit correspondingly, so that the unmanned aerial vehicle can walk in the slit and move to the position close to a fire source.

Description

Technical Field

[0001] This invention relates to the field of unmanned aerial vehicles (UAVs), and in particular to a remote spray fire extinguishing device for UAVs. Background Technology

[0002] In old residential areas, urban villages, and densely populated factory areas, narrow ventilation alleys, light gaps, or safety clearance gaps often form between two buildings. These spaces are so small that neither personnel nor fire trucks can enter, creating typical blind spots for firefighting in the event of a fire. Traditional firefighting equipment has significant limitations in such scenarios. Fire truck water cannons and nozzles are limited by angle and space constraints; the jets are easily blocked by walls or deflected by airflow, making it difficult to reach the fire inside the narrow gap. The high temperature, dense smoke, and strong chimney effect inside the fire scene prevent rescuers from approaching, attacking from the inside, setting up water cannons, or carrying out breaching operations, creating a "visible but inextinguishable" dilemma. At the same time, the narrow gaps act like chimneys, allowing flames and smoke to spread rapidly upwards, easily igniting upper-level windows and exterior wall insulation materials. Accumulated debris, wood, and construction waste inside can easily smolder, which conventional water flow cannot penetrate, resulting in a very high risk of reignition after extinguishing the fire. Furthermore, equipment such as ladders and aerial ladders cannot reach into narrow gaps and are therefore ineffective.

[0003] In current practice, the only effective methods are passive, such as pouring water from the rooftop, spraying water into the building through windows on both sides, partially breaching walls or windows, or waiting for the fire to subside before cooling. These methods are inefficient, time-consuming, and rarely completely extinguish the fire. Summary of the Invention

[0004] This invention provides a remote spray fire extinguishing device for drones, which can solve the problem of difficulty in extinguishing fires in narrow gaps in the prior art.

[0005] A remote spray fire extinguishing device for drones includes a drone, the drone being equipped with a protective plate replacement mechanism, the drone including a first fuselage, and a first mounting plate rotatably mounted on the bottom of the first fuselage having a first spray pipe and a second spray pipe with adjustable spacing. The protective plate replacement mechanism includes a housing, which is fixed to the drone. A sealed door is rotatably provided on the housing. A camera is detachably installed inside the housing. A storage area and a collection area are respectively provided above and below the camera inside the housing. A first baffle is slidably provided on the storage area, and a second baffle is slidably provided in the collection area.

[0006] Furthermore, the drone includes a first fuselage, with second fuselages fixedly or slidably mounted on both sides of the first fuselage. Several struts are slidably mounted on each of the two second fuselages. The drone also includes four sets of wings with identical structures, which are rotatably mounted on the two second fuselages respectively. Each wing includes a rotating arm rotatably mounted on the second fuselage. A mounting rod is fixedly mounted on the rotating arm, and a walking wheel is rotatably mounted on the rotating arm. The walking wheel is cylindrical and has a through-cavity inside. A propeller is rotatably mounted on the mounting rod and is hidden inside the walking wheel. A drive mechanism is provided inside the rotating arm to drive the walking wheel to rotate. Removable protective covers are also provided at both ends of the walking wheel.

[0007] Furthermore, the drone is also equipped with a jetting mechanism, which is connected to a water pipe or fire extinguishing water source. A first mounting plate is rotatably mounted on the bottom of the first fuselage. A first gear and a second gear are rotatably mounted on the first mounting plate. A third gear is located between the first gear and the second gear. The third gear meshes with the first gear and the second gear for transmission. The third gear is driven by a motor. A first connecting rod is fixedly mounted on the first gear, and a second connecting rod is fixedly mounted on the second gear. Several clamping components are fixedly mounted on both the first and second connecting rods. A first jetting pipe is fixed to the first connecting rod through the clamping components, and a second jetting pipe is fixed to the second connecting rod through the clamping components. The first jetting pipe and the second jetting pipe are connected by a metal hose, which is connected to a water inlet through a connector.

[0008] Furthermore, the first and second injection pipes are provided with a plurality of injection ports, including those disposed on the sidewalls and tops of the injection pipes.

[0009] Furthermore, the protective sheet replacement mechanism includes a window at one end of the housing, a rotatable sealing door located above the window on the housing, short rods fixedly mounted symmetrically on both sides of the sealing door, which can cover the window when rotated downwards, an installation area in the middle of the housing, a camera detachably installed near the window in the installation area, a storage area above the installation area in the housing for storing clean protective sheets, and a collection area below the installation area in the housing for collecting used and contaminated protective sheets. The bottoms of the storage area and the collection area are designed to be inclined, and a push plate is also slidably mounted in the storage area.

[0010] Furthermore, the storage area is provided with a sliding first baffle at the discharge port, the bottom of the storage area is an inclined first base plate, and there is a notch between the first base plate and the box body for the material of the protective sheet. The first baffle is slidably engaged with the box body, and inserts are fixedly provided on both sides of the first baffle. The first base plate is provided with corresponding insertion holes that engage with the inserts.

[0011] Furthermore, a second baffle is provided at the top of the storage area. The second baffle is slidably disposed at the feed inlet of the storage area. A top plate is provided at the top of the storage area. An installation groove is provided on the top plate. Several first springs are fixedly connected in the installation groove. The other end of the first springs is fixedly connected to the top plate. Extension rods are fixedly provided on both sides of the second baffle. Both extension rods are close to the window. The two extension rods located outside the window are also provided with a one-way rotating rod.

[0012] Furthermore, the sealing door includes a motor-driven mechanism.

[0013] Furthermore, side plates are fixedly provided on both sides of the first baffle, and through holes are provided on the side plates. A second mounting plate is fixedly provided on the side wall of the box, and a plurality of second springs are fixedly provided on the second mounting plate. The other ends of the plurality of second springs are fixedly connected to the side plates through connecting plates.

[0014] Furthermore, a cylindrical component is rotatably provided on the lower side of the box body. A first pressure rod and a second pressure rod are fixedly connected to the cylindrical component. The included angle between the first pressure rod and the second pressure rod is greater than 90 degrees. The two first pressure rods are fixedly connected by a crossbar, and the second pressure rod is inserted into the through hole.

[0015] Beneficial effects

[0016] 1. In this invention, when the distance between buildings is too large, the drone moves using its propellers. When the distance between buildings is too small, the angle of several rotating arms is adjusted to change the size of the drone. The four sets of wheels are respectively attached to the two walls forming a narrow gap, allowing the drone to move through the gap until it reaches the fire source to extinguish the fire. At the same time, the first and second spray pipes can be rotated to a straight line according to the actual width between buildings to achieve the maximum spray range. The first mounting plate can also be rotated according to the fire location to adjust the spray position of the first and second spray pipes to meet different fire extinguishing needs.

[0017] 2. The present invention also includes a protective sheet replacement mechanism. The replacement of the protective sheet is carried out in an environment isolated from smoke. The replacement sequence of the protective sheet in the present invention is as follows: First, the sealing door is closed, the extension rod moves to allow the contaminated protective sheet to fall into the collection area for collection, the extension rod returns to the collection area and closes, then the first baffle moves, and the uncontaminated protective sheet falls into the protection area, and finally the sealing door is opened and all components are reset. The sealing door is kept relatively closed throughout the protective sheet replacement process to prevent a large amount of smoke from directly contacting the lens during the replacement process, thus protecting the lens. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure I ; Figure 2This is a front view of the overall structure of the present invention; Figure 3 This is a schematic diagram of the overall structure of the present invention. Figure II ; Figure 4 This is a schematic diagram of the protective sheet replacement mechanism of the present invention; Figure 5 This is an enlarged schematic diagram of part A of the present invention; Figure 6 This is an enlarged schematic diagram of part B of the present invention; Figure 7 This is a front view of the protective sheet replacement mechanism of the present invention; Figure 8 This is a cross-sectional view at point AA of the present invention; Figure 9 This is an enlarged schematic diagram of part C of the present invention; Figure 10 This is an enlarged schematic diagram of part D of the present invention; Figure 11 This is a schematic diagram of the protective plate replacement mechanism of the present invention (part a shows the contact between the sealing door and the one-way rotating rod, part b shows the sealing door starting to squeeze the one-way rotating rod, part c shows the one-way rotating rod resetting, and part d shows the sealing door rotating and opening).

[0019] Explanation of reference numerals in the attached figures: 100. Unmanned Aerial Vehicle (UAV); 200. Protective Plate Replacement Mechanism; 101. First Fuselage; 102. Second Fuselage; 103. Support Rod; 104. Rotating Arm; 105. Mounting Rod; 106. Walking Wheel; 107. Chamber; 108. Propeller; 109. Protective Cover; 110. First Mounting Plate; 111. First Linkage Rod; 112. Second Linkage Rod; 113. Clamping Assembly; 114. First Jet Pipe; 115. Second Jet Pipe; 116. Metal Flexible Hoses; 117. First Gear; 118. Second Gear; 119. Third Gear; 120. Water Inlet; 201. Housing; 202. Sealing Door; 20 3. Window; 204. Cylindrical component; 205. First pressure rod; 206. Crossbar; 207. Second pressure rod; 208. Second mounting plate; 209. Second spring; 210. Connecting plate; 211. Side plate; 212. First baffle; 213. Through hole; 214. Second baffle; 215. Extension rod; 216. Installation area; 217. Storage area; 218. Organizing area; 219. Camera; 220. Push plate; 221. Protective plate; 222. First base plate; 223. Insert strip; 224. Insert hole; 225. Mounting groove; 226. First spring; 227. One-way rotating rod; 228. Short rod. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] like Figure 1 As shown in the figure, an embodiment of the present invention provides a remote spray fire extinguishing device for drones, including a drone 100 and a protective plate replacement mechanism 200, wherein the drone 100 is connected to a spray fire extinguishing water pipe for fire extinguishing in high-rise buildings and narrow gaps in buildings.

[0022] In response to the dangers posed by narrow gaps in buildings, where conventional firefighting equipment such as ladders and water cannons cannot reach the fire area, this embodiment proposes a drone firefighting device. When a fire occurs in a narrow gap, the drone can be controlled to fly and approach the fire source to spray fire extinguishing agents. When the gap is too small to support the drone's continued flight, the drone's walking mode can be activated, and the size of the drone can be adjusted according to the actual gap to allow it to move between the gaps, thus meeting different usage needs.

[0023] like Figure 2As shown, the drone 100 includes a first fuselage 101, with second fuselages 102 fixedly or slidably mounted on both sides of the first fuselage 101. Several struts 103 are slidably mounted on each of the two second fuselages 102. The drone 100 also includes four sets of wings, all with identical structures, rotatably mounted on the two second fuselages 102. Taking one set of wings as an example, the wing specifically includes a rotating arm 104 rotatably mounted on the second fuselage 102. A mounting rod 105 is fixedly mounted on the rotating arm 104, and a traveling wheel 106 is rotatably mounted on the rotating arm 104. The traveling wheel 106 is cylindrical and has a through-cavity 107 inside. A propeller 108 is rotatably mounted on the mounting rod 105, and the propeller 108 is hidden inside the traveling wheel 106. A drive mechanism is provided inside the rotating arm 104 to drive the traveling wheel 106 to rotate, thus enabling the drone to move. The drive mechanism includes, but is not limited to, [specific examples of such mechanisms]. The system is driven directly by a motor, and also includes other conventional techniques known to those skilled in the art. In use, when the distance between buildings is large enough for the drone 100 to fly, the propellers 108 are activated to move it. When the distance between buildings is too small to achieve flight, the included angle of several rotating arms 104 is adjusted to change the size of the drone 100, so that the four sets of wheels 106 respectively contact the walls on both sides of the narrow gap, allowing the drone to move within the gap until it reaches a point close to the fire source for firefighting. In this embodiment, several support rods 103 can be driven by cylinders, and the spacing between the support rods 103 is adjustable, controlling the extension of the support rods 103 on both sides and their contact with the wall. Since the drone uses spray firefighting during the firefighting process, the reaction force generated by the spray may cause the fuselage to sway. Therefore, this embodiment uses support rods 103 to further fix the fuselage and prevent it from falling. Figure 3 As shown, the walking wheels 106 are also equipped with detachable protective covers 109 at both ends. The protective covers 109 are used to protect the propellers 108 and prevent damage to the flight components when the drone crashes.

[0024] To accommodate firefighting in narrow spaces, the drone 100 in this embodiment is also equipped with a jetting mechanism. This mechanism can be connected to a water pipe or fire extinguishing water source to extinguish the fire at its source. Figure 3As shown, a first mounting plate 110 is rotatably mounted on the bottom of the first body 101. A first gear 117 and a second gear 118 are rotatably mounted on the first mounting plate 110. A third gear 119 is located between the first gear 117 and the second gear 118. The third gear 119 meshes with the first gear 117 and the second gear 118 for transmission. The third gear 119 is driven by a motor. A first connecting rod 111 is fixedly mounted on the first gear 117, and a second connecting rod 112 is fixedly mounted on the second gear 118. In use, the first gear 117 rotates, and the meshing transmission between the gears enables the rotation of the first gear 117 and the second gear 118. The first connecting rod 111 and the second connecting rod 112 rotate and open / close accordingly. Several clamping components 113 are fixedly mounted on both the first connecting rod 111 and the second connecting rod 112. The first connecting rod 111 is fixed to the first spray pipe 114 by the clamping components 113, and the second connecting rod 112 is fixed to the first spray pipe 114 by the clamping components 113. A second spray pipe 115 is fixedly installed on 113. The first spray pipe 114 and the second spray pipe 115 are connected by a metal hose 116. The metal hose 116 is connected to the water inlet 120 through a connector. In use, the water inlet 120 is connected to an external water pipe to achieve overall water supply. The water source passes through the water inlet 120 and then enters the first spray pipe 114 and the second spray pipe 115 simultaneously through the connector and the metal hose 116 for spraying and fire extinguishing. In use, the first spray pipe 114 and the second spray pipe 115 can be rotated to a straight line arrangement according to the actual width between buildings to achieve the maximum spray range. At the same time, the first mounting plate 110 can be rotated according to the fire location to adjust the spray position of the first spray pipe 114 and the second spray pipe 115 to meet different fire extinguishing needs. In this embodiment, the first spray pipe 114 and the second spray pipe 115 are provided with several spray nozzles, including those set on the side wall and the top of the spray pipe. The clamping component 113 in this embodiment includes, but is not limited to, fixing the first spray pipe 114 and the second spray pipe 115 by means of a snap-fit, which is a conventional technical means well known to those skilled in the art and will not be described in detail here.

[0025] In fire scenarios involving narrow gaps in buildings, the smoke, dust, and suspended particles produced by combustion can significantly impact infrared thermal imaging equipment. While infrared systems can effectively penetrate smoke and identify fire points under light smoke conditions, they attenuate and scatter in environments with dense smoke and high dust concentrations, leading to decreased fire point location accuracy and reduced image contrast. Furthermore, smoke and tar-like substances adhere to the surface of the infrared lens protective film, reducing image clarity and requiring regular cleaning. However, protective films are more susceptible to contamination in narrow-gap fires, necessitating frequent cleaning. Typically, drones are used to return to base for manual lens replacement, significantly delaying rescue efforts and potentially causing further fire spread, threatening life and property. Therefore, this embodiment proposes a protective film replacement mechanism 200 to replace the protective film, saving drone travel time.

[0026] like Figure 4 As shown, the protective plate replacement mechanism 200 includes a housing 201 fixed to the first body 101, a window 203 at one end of the housing 201, and a sealing door 202 rotatably mounted on the housing 201 above the window 203. Figure 11 As shown in Figure a, the sealing door 202 has short rods 228 fixedly installed on both sides symmetrically. When the sealing door 202 rotates downwards, it can cover the window 203. Figure 8 As shown, the middle position inside the housing 201 is the installation area 216. A camera 219 is detachably installed in the installation area 216 near the window 203. Above the installation area 216 inside the housing 201, there is a storage area 217 for storing clean protective sheets 221. Below the installation area 216 inside the housing 201, there is a collection area 218 for collecting used and contaminated protective sheets. In this embodiment, to facilitate the discharge of clean protective sheets 221 and the collection of contaminated protective sheets 221, the bottom of the storage area 217 and the collection area 218 are designed to be inclined. A push plate 220 is also slidably installed in the storage area 217. The push plate 220 includes, but is not limited to, being pushed by a cylinder. The push plate 220 can push several neatly arranged protective sheets 221 toward the outlet to assist in the replacement of the protective sheets 221.

[0027] like Figure 8 and Figure 9As shown, to facilitate the replacement of the protective sheet 221, this embodiment has a sliding first baffle 212 at the discharge port of the storage area 217. The bottom of the storage area 217 is an inclined first base plate 222. A notch is provided between the first base plate 222 and the box body 201 for the discharge of the protective sheet 221. The first baffle 212 slides in conjunction with the box body 201. When the first baffle 212 is spliced ​​with the end of the first base plate 222, the notch is blocked by the first baffle 212. 1. Unable to fall, the first baffle 212 has fixed inserts 223 on both sides, and the first base plate 222 has corresponding holes 224 that cooperate with the inserts 223. That is, when it is necessary to unload, the first baffle 212 only needs to be slid outward. At this time, the inserts 223 slide relative to the holes 224. When the inserts 223 slide to the end, the protective sheet 221 will fall along the position between the two inserts 223 to the position in front of the camera 219, thus realizing the installation of the protective sheet 221.

[0028] like Figure 8 and Figure 10 As shown, to facilitate the replacement of the contaminated protective sheet 221, this embodiment also provides a second baffle 214 at the top of the collection area 218. The second baffle 214 is slidably positioned at the inlet of the collection area 218, meaning the protective sheet 221 can fall into the collection area 218 along this inlet, thus collecting the contaminated protective sheet 221. The second baffle 214 is the same size as the inlet. The top of the collection area 218 is provided with a top plate, and an installation groove 225 is provided on the top plate. Several first springs 226 are fixedly connected in the installation groove 225, and the other end of the first springs 226 is fixedly connected to the top plate. Extension rods 215 are fixedly provided on both sides of the second baffle 214, such as... Figure 4 and Figure 5 As shown, both extension rods 215 are close to window 203, as... Figure 11 As shown in Figure a, the two extension rods 215 located outside the window 203 are also equipped with a one-way rotating rod 227, as shown in Figure a. Figure 10 As shown, when the protective sheet 221 needs to be replaced after contamination, simply press the extension rod 215 inward. At this time, the second baffle 214 gradually moves and hides in the mounting groove 225. The extension rod 215 will then move to the feed inlet position. At this time, there is a gap between the two extension rods 215 that matches the size of the protective sheet 221. The protective sheet 221 falls into the collection area 218 under the action of gravity for collection.

[0029] This embodiment uses a driving mechanism to move the first baffle 212 and the second baffle 214. Specifically, as shown in the example... Figure 4 As shown, the sealing door 202 in this embodiment includes, but is not limited to, being directly driven by a motor, such as... Figure 5As shown, side plates 211 are fixedly provided on both sides of the first baffle 212. Through holes 213 are provided on the side plates 211. A second mounting plate 208 is fixedly provided on the side wall of the housing 201. Several second springs 209 are fixedly provided on the second mounting plate 208. The other ends of the second springs 209 are fixedly connected to the side plates 211 via connecting plates 210. That is, when the first baffle 212 slides outward, the second springs 209 will be stretched. Figure 4 As shown, a cylindrical component 204 is rotatably provided on the lower side of the housing 201. A first pressure rod 205 and a second pressure rod 207 are fixedly connected to the cylindrical component 204. The included angle between the first pressure rod 205 and the second pressure rod 207 is greater than 90 degrees. The two first pressure rods 205 are fixedly connected by a crossbar 206. When in use, when the crossbar 206 is squeezed, it will drive the cylindrical component 204 to rotate, which will further realize the rotation of the second pressure rod 207. The second pressure rod 207 is inserted into the through hole 213. That is, when the second pressure rod 207 rotates, it will drive the side plate 211 to slide outward, so as to facilitate the removal of the first baffle 212 and the unloading of the protective plate 221.

[0030] During use, since this device is always within the smoke-filled area, the replacement of the protective sheet should be carried out in a smoke-free environment. Therefore, in this embodiment, the replacement sequence of the protective sheet 221 is as follows: First, close the sealing door 202, move the extension rod 215 to allow the contaminated protective sheet 221 to fall into the collection area 218 for collection, and then return the extension rod 215 to the collection area 218 and close it. Subsequently, the first baffle 212 moves, and the uncontaminated protective sheet 221 falls into the protected area. Finally, the sealing door 202 is opened, and all components are reset. Throughout the replacement process of the protective sheet 221, the sealing door 202 is kept relatively closed to prevent a large amount of smoke from directly contacting the lens during the replacement process, thus protecting the lens.

[0031] like Figure 11 As shown in a and b, during use, the sealing door 202 is first driven to rotate and close. Before the sealing door 202 is fully closed, the short rods 228 fixed on both sides of the sealing door 202 will gradually come into contact with the one-way rotating rod 227. The one-way rotating rod 227 is compressed, and the compression is transmitted to the first spring 226 through the extension rod 215. The first spring 226 is compressed, and the protective plate 221 falls into the storage area 218 for collection under the action of gravity through the gap between the two extension rods 215. Figure 11As shown in Figure c, as the sealing door 202 further closes and rotates, the one-way rotating rod 227 and the short rod 228 are misaligned, meaning the one-way rotating rod 227 moves to a position above the short rod 228. At this time, the one-way rotating rod 227 is in an unobstructed state. The first spring 226 restores its deformation and pushes the one-way rotating rod 227 to reset. The reset of the one-way rotating rod 227 causes the extension rod 215 to reset, and the material discharge port above the storage area 218 is hidden. As the sealing door 202 further closes and rotates, the sealing door 202 will gradually squeeze the crossbar 206. The crossbar 206 rotates, ultimately causing the second pressure rod 207 to rotate and drive the side plate 211 to slide outward, realizing the extraction of the first baffle 212. The protective plate 221 will fall along the position between the two inserts 223 to the position in front of the camera 219, realizing the installation of the protective plate 221. Figure 11 As shown in Figure d, after the protective plate 221 is replaced and installed, the sealing door 202 rotates and opens. At this time, the crossbar 206 is reset under the action of the second spring 209. Meanwhile, the one-way rotating rod 227 will rotate slightly upward during the return contact with the sealing door 202, so that the extension rod 215 will not be displaced. There will be no interference between the sealing door 202 and the one-way rotating rod 227 until it rotates to the unobstructed area above.

[0032] In the description of this invention, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on the invention. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "multiple" means two or more.

[0033] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0034] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A remote-controlled spray fire extinguishing device for unmanned aerial vehicles, characterized in that, The drone (100) includes a protective plate replacement mechanism (200) on the drone (100). The drone (100) includes a first fuselage (101). The bottom of the first fuselage (101) is rotatably provided with a first mounting plate (110) on which a first spray pipe (114) and a second spray pipe (115) with adjustable spacing are detachably mounted. The protective plate replacement mechanism (200) includes a housing (201), which is fixed on the drone (100). A sealing door (202) is rotatably provided on the housing (201). A camera (219) is detachably installed inside the housing (201). A storage area (217) and a collection area (218) are respectively provided above and below the camera (219) inside the housing (201). A first baffle (212) is slidably provided on the storage area (217), and a second baffle (214) is slidably provided in the collection area (218).

2. The remote-controlled spray fire extinguishing device for unmanned aerial vehicles as described in claim 1, characterized in that, The drone (100) includes a first fuselage (101), with second fuselages (102) fixedly or slidably mounted on both sides of the first fuselage (101). Several struts (103) are slidably mounted on each of the two second fuselages (102). The drone (100) also includes four sets of wings, all with identical structures, rotatably mounted on the two second fuselages (102). Each wing includes a rotating arm (104) rotatably mounted on the second fuselage (102), and a mounting rod is fixedly mounted on the rotating arm (104). 105), a traveling wheel (106) is also rotatably mounted on the rotating arm (104). The traveling wheel (106) is cylindrical and has a through-cavity (107) inside. A propeller (108) is rotatably mounted on the mounting rod (105). The propeller (108) is hidden inside the traveling wheel (106). A drive mechanism is provided inside the rotating arm (104). The drive mechanism is used to drive the traveling wheel (106) to rotate. A detachable protective cover (109) is also provided at both ends of the traveling wheel (106).

3. The remote-controlled spray fire extinguishing device for unmanned aerial vehicles as described in claim 1, characterized in that, The drone (100) is also equipped with a jetting mechanism, which is connected to a water pipe or fire extinguishing water source. A first mounting plate (110) is rotatably mounted on the bottom of the first fuselage (101). A first gear (117) and a second gear (118) are rotatably mounted on the first mounting plate (110). A third gear (119) is provided between the first gear (117) and the second gear (118). The third gear (119) meshes with the first gear (117) and the second gear (118) for transmission. The third gear (119) is driven by a motor. A first connecting rod is also fixed on the first gear (117). A second connecting rod (112) is fixedly mounted on the rod (111) and the second gear (118). Several clamping components (113) are fixedly mounted on the first connecting rod (111) and the second connecting rod (112). The first connecting rod (111) is fixed with a first spray pipe (114) through the clamping components (113). The second connecting rod (112) is fixed with a second spray pipe (115) through the clamping components (113). The first spray pipe (114) and the second spray pipe (115) are connected through a metal hose (116). The metal hose (116) is connected to the water inlet (120) through a connector.

4. A remote-controlled spray fire extinguishing device for unmanned aerial vehicles as described in claim 3, characterized in that, The first injection pipe (114) and the second injection pipe (115) are provided with a plurality of injection ports, including those provided on the side wall and the top of the injection pipe.

5. A remote-controlled spray fire extinguishing device for unmanned aerial vehicles as described in claim 1, characterized in that, The protective plate replacement mechanism (200) includes a box (201) with a window (203) at one end, a sealing door (202) rotatably mounted on the box (201) above the window (203), short rods (228) symmetrically mounted on both sides of the sealing door (202), which can cover the window (203) when the sealing door (202) rotates downwards, and an installation area (216) in the middle of the box (201), where a camera can be detachably mounted near the window (203). The head (219) and the box (201) are provided with a storage area (217) above the installation area (216). The storage area (217) is used to store clean protective sheets (221). The box (201) is provided with a storage area (218) below the installation area (216). The storage area (218) is used to collect used and contaminated protective sheets. The bottom of the storage area (217) and the storage area (218) are designed to be inclined. The storage area (217) is also provided with a sliding push plate (220).

6. A remote-controlled spray fire extinguishing device for unmanned aerial vehicles as described in claim 1, characterized in that, The storage area (217) has a sliding first baffle (212) at the discharge port. The bottom of the storage area (217) is an inclined first base plate (222). There is a notch between the first base plate (222) and the box (201). The notch is used for the material feeding of the protective sheet (221). The first baffle (212) and the box (201) are slidably engaged. Inserts (223) are fixedly provided on both sides of the first baffle (212). The first base plate (222) has corresponding insertion holes (224) that cooperate with the inserts (223).

7. A remote-controlled spray fire extinguishing device for unmanned aerial vehicles as described in claim 1, characterized in that, The storage area (218) is provided with a second baffle (214) at the top. The second baffle (214) is slidably disposed at the feed inlet of the storage area (218). The storage area (218) is provided with a top plate at the top. An installation groove (225) is provided on the top plate. Several first springs (226) are fixedly connected in the installation groove (225). The other end of the first springs (226) is fixedly connected to the top plate. Extension rods (215) are fixedly provided on both sides of the second baffle (214). Both extension rods (215) are close to the window (203). The two extension rods (215) located outside the window (203) are also provided with a one-way rotating rod (227).

8. A remote-controlled spray fire extinguishing device for unmanned aerial vehicles as described in claim 1, characterized in that, The sealing door (202) is driven by a motor.

9. A remote-controlled spray fire extinguishing device for unmanned aerial vehicles as described in claim 7, characterized in that, The first baffle (212) has side plates (211) fixed on both sides, and the side plates (211) have through holes (213). The side wall of the box (201) is fixed with a second mounting plate (208), and a number of second springs (209) are fixed on the second mounting plate (208). The other end of the number of second springs (209) is fixedly connected to the side plate (211) through a connecting plate (210).

10. A remote-controlled spray fire extinguishing device for unmanned aerial vehicles as described in claim 8, characterized in that, A cylindrical component (204) is rotatably provided on the lower side of the box body (201). A first pressure rod (205) and a second pressure rod (207) are fixedly connected to the cylindrical component (204). The included angle between the first pressure rod (205) and the second pressure rod (207) is greater than 90 degrees. The two first pressure rods (205) are fixedly connected by a crossbar (206). The second pressure rod (207) is inserted into the through hole (213).

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