Fire extinguishing unmanned aerial vehicle for fire fighting

Abstract

The invention provides a fire extinguishing unmanned aerial vehicle for fire fighting, and belongs to the technical field of unmanned aerial vehicle fire fighting. Comprising a wing adjusting device and an unmanned aerial vehicle body, the wing adjusting device is installed in the unmanned aerial vehicle body and can change the loading mode of the unmanned aerial vehicle body, duplex frames are fixedly installed on the inner walls of the two sides of the unmanned aerial vehicle body, the wing adjusting device comprises two sets of swing assemblies, and the two sets of swing assemblies are symmetrically arranged; and the two connecting rods are arranged between the two groups of duplex frames. According to the bomb dropping device, the first caterpillar track and the second caterpillar track are matched in an inserted mode, the second caterpillar track with a foundation bed or a toggle clip can be rapidly replaced, the linkage driving mode of the wing adjusting device and the loading assembly is utilized, the bomb loading mode and the pipe loading mode can be rapidly switched according to different fire behaviors, the precise bomb dropping requirements of open-air fire disasters and electrical fire disasters are met, and the bomb dropping efficiency is improved. And the unmanned aerial vehicle can meet the continuous water supply cooling requirements of indoor fire and large-scale storage fire, so that the problem that an existing fire extinguishing unmanned aerial vehicle is single in function is solved.

Description

Technical Field

[0001] This invention relates to the field of drone firefighting technology, and in particular to a firefighting drone for firefighting. Background Technology

[0002] With the acceleration of urbanization and the increase in complex environments such as high-rise buildings, forests, and industrial areas, the difficulty and danger of fire fighting are increasing. Firefighting drones, with their advantages of flexibility, maneuverability, and lack of terrain limitations, have become key equipment in fire rescue.

[0003] Currently, most firefighting drones are designed for a single function, making it difficult to adapt to the needs of fighting different types of fires. For example, bomb-dropping drones, which are designed for outdoor fires and electrical fires, can only drop fire extinguishing bombs once and cannot meet the continuous water supply and cooling needs of indoor fires and large warehouse fires. On the other hand, pipe-carrying drones, which are designed to carry fire hoses, are difficult to deal with scattered small fires or scenarios that require precise and targeted firefighting due to their fixed structure. Furthermore, switching between the two types of drones requires additional resource allocation, which may delay the best time to extinguish the fire. Meanwhile, replacing fire extinguishing equipment by manually disassembling and assembling parts on a drone is not only cumbersome and time-consuming, but also easily causes the center of gravity of the aircraft to shift. Furthermore, since the wing position is fixed, switching loading modes can easily disrupt flight balance, causing the aircraft to shake or even risk crashing. This safety hazard is particularly prominent in complex fire environments with high temperatures and dense smoke.

[0004] Therefore, this application provides a fire-fighting drone to meet the needs. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a fire-fighting drone. By setting up a connecting and interlocking track one and track two, track two with a base bed or clamp can be quickly replaced. By using the linkage drive of the wing adjustment device and the loading component, it can quickly switch between two modes of bomb-carrying and tube-carrying for different fire situations. It can meet the needs of accurate bomb-dropping for open fires and electrical fires, and can also adapt to the needs of continuous water supply and cooling for indoor fires and large warehouse fires, so as to solve the problem of the single function of existing fire-fighting drones.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A fire-fighting drone includes a wing adjustment device and a drone body. The wing adjustment device is installed inside the drone body and can change the loading mode of the drone body. Double frames are fixedly installed on the inner walls of both sides of the drone body. The wing adjustment device includes a swing assembly. There are two sets of swing assemblies. The two sets of swing assemblies are symmetrically arranged and are installed between the two sets of double frames. The swing assembly includes a cylindrical shell, which is formed by two sets of semi-circular shells fixedly connected by bolts. The two ends of the cylindrical shell are respectively fixedly connected to the inner walls of two sets of double-frames. A swing groove is opened on the outer wall of the middle part of the cylindrical shell. A rotating shaft is provided inside the cylindrical shell. Bearings are installed at both ends of the rotating shaft, and the rotating shaft is rotatably connected to the cylindrical shell through two sets of bearings. A swing shaft is welded to the outer wall of the middle part of the rotating shaft. The end wall of the swing shaft is located in the swing groove and is rotatably connected to the swing groove. A gear is fixedly installed on the outer end of the rotating shaft, and two sets of gears mesh with each other.

[0007] Optionally, the outer end of the swing shaft is provided with a support arm, the middle of the support arm is fixedly installed with a connecting seat, the outer wall of the middle of the support arm is rotatably connected with a three-way pipe, a central groove is opened at the top center of the three-way pipe, and the connecting seat is located in the central groove. The end wall of the swing shaft is inserted into the outer end of the three-way pipe. A positioning seat is fixedly installed at the top center of the cylindrical shell. A connecting rod is rotatably connected to the positioning seat, and the other end of the connecting rod is rotatably connected to the top of the connecting seat. Rotor mechanisms are installed at both ends of the support arm. A motor is fixedly installed on the inner wall of the UAV body, and the output end of the motor is fixedly connected to the left end wall of the swing shaft.

[0008] Optionally, a main shaft is rotatably connected to the inner wall of the UAV body, the main shaft is fixedly connected to the right side rotating shaft end wall, a secondary shaft is rotatably connected to the inner wall of the UAV body, a helical gear one is fixedly installed on the end wall of the main shaft, a helical gear two is fixedly installed on the end wall of the secondary shaft, and the helical gear two meshes with the helical gear one, and a loading component is installed on the secondary shaft.

[0009] Optionally, the inner walls of both sides of the end of the UAV body are provided with arc-shaped grooves. The loading assembly includes a connecting bridge, which is fixedly connected to the secondary shaft. A rotating plate is fixedly installed at the bottom of the connecting bridge, and the middle parts of both sides of the rotating plate are slidably connected to two sets of arc-shaped grooves respectively. A first track is fixedly installed at the bottom of the rotating plate. A first insertion hole is provided in the middle of the first track. A second track is inserted into the inner wall of the first track. A second insertion hole is provided in the middle of the second track, and the second insertion hole can be used in conjunction with the first insertion hole. A first insert can be inserted into the second insertion hole and the first insertion hole.

[0010] Optionally, a base bed can be fixedly installed at the bottom of the track 2. Slide rods are fixedly installed on both sides of the base bed. Multiple sets of insertion holes 3 are evenly opened at the bottom of the outer slide rods. A displacement block is provided in the middle of the base bed. Insertion slots are opened on the inner walls of both sides of the displacement block. The insertion slots cooperate with the corresponding slide rods, and the displacement block is slidably connected to the base bed. An insertion hole 4 is opened at the bottom of the displacement block, and the insertion hole 4 cooperates with multiple sets of insertion holes 3. Insertion steel 2 can be inserted into the insertion holes 3 and 4. A loading bridge is fixedly installed at the top of the displacement block. Clamping slots are opened at the bottom of both ends of the loading bridge. A linkage mechanism is installed on the inner walls of both sides of the loading bridge, and the linkage mechanism can cooperate with the corresponding clamping slots. A motor 2 is fixedly installed on the inner walls of both sides of the loading bridge, and the output end of the motor 2 is fixedly connected to the drive end of the corresponding linkage mechanism. The linkage mechanism and the clamping slots can cooperate to clamp the fire extinguishing bomb.

[0011] Optionally, a clamp can be fixedly installed at the bottom of the second track, and the clamp is provided in two sets, and the two sets of clamps can jointly clamp the fire water pipe.

[0012] Compared with the prior art, the present invention has at least the following beneficial effects: In the above scheme, by setting up the plug-in cooperation between track one and track two, track two with base bed or clamp can be quickly replaced. By using the linkage drive mode of wing adjustment device and loading component, it is possible to quickly switch between bomb-carrying and tube-carrying modes for different fire situations. This not only meets the precise bomb-dropping requirements of open fire and electrical fire, but also adapts to the continuous water supply and cooling requirements of indoor fire and large warehouse fire. There is no need to allocate drones with different functions, thus avoiding delays in the best fire-fighting opportunity.

[0013] In the ammunition loading mode, the displacement block can slide along the slide bar on the base bed. The spacing between different displacement blocks is fixed by inserting steel rods, thereby adapting to the loading of different numbers of fire extinguishing bombs. This meets the needs of multi-point precise fire extinguishing for dispersed small fires. At the same time, in the pipe loading mode, two sets of clamps can firmly hold the fire water pipe, ensuring the stability of continuous water supply. This fully covers the fire fighting needs of different scales and types of fires, improving fire extinguishing efficiency and reliability. Attached Figure Description

[0014] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0015] Figure 1 This is a three-dimensional structural diagram of a firefighting drone. Figure 2 This refers to the missile-carrying mode of the drone's airframe. Figure 3 For the carrier mode of the drone body; Figure 4 This is a schematic diagram showing the assembly of the wing adjustment device with the UAV body. Figure 5 This is a schematic diagram of the wing adjustment device; Figure 6 This is a schematic diagram of the swing assembly. Figure 7 This is an assembly diagram of the positioning seat, connecting rod, and coupling seat; Figure 8 This is a schematic diagram of the assembly of the rotating shaft and the pendulum shaft inside the cylindrical shell; Figure 9 This is a schematic diagram of the assembly of the boom and the T-joint. Figure 10 This is a schematic diagram of the structure of the drone's airframe; Figure 11 This is a schematic diagram of the assembly of the loading component and the secondary shaft; Figure 12 This is a schematic diagram of the assembly of two sets of helical gears; Figure 13 This is a structural diagram of the loading component; Figure 14 This is a schematic diagram of the assembly of track 2 and track 1 in the ammunition loading mode; Figure 15 This is a schematic diagram of the assembly of the displacement block and the base bed in the missile loading mode; Figure 16 This is an assembly diagram of the components on the displacement block; Figure 17 This is a schematic diagram of the assembly of the bridge and the rotating plate in the pipe-carrying mode; Figure 18 This is a schematic diagram of the assembly of track 2 and track 1 in the tube-carrying mode.

[0016] Figure label: 100, wing adjustment device, 110, cylindrical shell, 111, sway groove, 112, rotor shaft, 113, bearing, 114, gear, 115, swing shaft, 116, positioning seat, 117, connecting rod, 118, motor one, 119, support arm, 120, coupling, 121, tee pipe, 123, center clearance groove, rotor mechanism, 124, main shaft, 130, helical gear one, 131, secondary shaft, helical gear two, 133, UAV body, 200, double frame. 210, Arc-shaped groove; 220, Loading assembly; 230, Connecting bridge; 231, Turning plate; 232, Track 1; 233, Insertion hole 1; 234, Track 2; 235, Insertion hole 2; 236, Insertion steel 1; 237, Base bed; 240, Slide rod; 241, Insertion hole 3; 242, Displacement block; 243, Insertion port; 244, Insertion hole 4; 245, Insertion steel 2; 246, Loading bridge; 250, Clamp; 251, Linkage mechanism; 252, Motor 2; 253, Clamp; 260.

[0017] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0018] The fire-fighting drone provided by the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0019] like Figures 1 to 18 As shown, an embodiment of the present invention provides a fire-fighting drone, including a wing-adjusting device 100 and a drone body 200. The wing-adjusting device 100 is installed inside the drone body 200 and can change the loading mode of the drone body 200. The drone body 200 has two loading modes, namely a projectile-carrying mode (refer to the appendix of the specification). Figure 2 (as shown) and the carrier mode (refer to the instruction manual appendix) Figure 3 As shown), the inner walls of both sides of the UAV body 200 are fixedly equipped with double-frames 210. The wing adjustment device 100 includes a swing assembly 110, which has two sets. The two sets of swing assemblies 110 are symmetrically arranged and installed between the two sets of double-frames 210. The swing assembly 110 includes a cylindrical shell 111, which is formed by two sets of semi-circular shells fixedly connected by bolts. The two ends of the cylindrical shell 111 are fixedly connected to the inner walls of the two sets of double-frames 210 respectively. The double-frames 210 support the cylindrical shell 111. A swing groove 112 is provided on the outer wall of the middle part of the cylindrical shell 111. A rotating shaft 113 is provided inside the cylindrical shell 111. Bearings 114 are installed at both ends of the rotating shaft 113, and the rotating shaft 113 is rotatably connected to the cylindrical shell 111 through two sets of bearings 114. A swing shaft 116 is welded to the outer wall of the middle part of the rotating shaft 113. The end wall of the swing shaft 116 is located in the swing groove 112 and is rotatably connected to the swing groove 112. The swing groove 112 can limit the movement of the swing shaft 116. A gear 115 is fixedly installed on the outer end of the rotating shaft 113, and two sets of gears 115 mesh with each other.

[0020] In this embodiment, as Figures 4 to 9As shown, a support arm 120 is provided at the outer end of the swing shaft 116. A connecting seat 121 is fixedly installed in the middle of the support arm 120. A three-way pipe 122 is rotatably connected to the outer wall of the middle part of the support arm 120. The support arm 120 can rotate within the three-way pipe 122. A center clearance groove 123 is provided at the top center of the three-way pipe 122, and the connecting seat 121 is located in the center clearance groove 123. The center clearance groove 123 can limit the rotation of the support arm 120. When the support arm 120 is above the UAV body 200, the connecting seat 121 is located at the right limit position of the center clearance groove 123 (refer to the instruction manual). Figure 5 As shown), similarly, when the boom 120 is located below the UAV body 200, the coupling 121 is located at the left limit position of the center clearance groove 123 (refer to the instruction manual appendix). Figure 6 As shown), the end wall of the swing shaft 116 is inserted into the outer end of the three-way pipe 122. A positioning seat 117 is fixedly installed at the center of the top of the cylindrical shell 111. A connecting rod 118 is rotatably connected to the positioning seat 117, and the other end of the connecting rod 118 is rotatably connected to the top of the connecting seat 121. Rotor mechanisms 124 are installed at both ends of the boom 120. A motor 119 is fixedly installed on the inner wall of the UAV body 200, and the output end of the motor 119 is fixedly connected to the end wall of the left rotating shaft 113. In this invention, the output shaft of the motor 119 drives the rotating shaft 113 to rotate, so that the two sets of gears 115 mesh, thereby driving the swing shaft 116 on the two sets of rotating shafts 113 to move downward, so that the boom 120 moves from the top of the UAV body 200 to the bottom. During this process, the connecting rod 118 can pull the connecting seat 121, thereby ensuring that the rotor mechanisms 124 at both ends of the boom 120 always remain upward during the movement.

[0021] As one implementation method in this embodiment, such as Figure 5 , Figures 10 to 12As shown, a main shaft 130 is rotatably connected to the inner wall of the UAV body 200. The main shaft 130 is fixedly connected to the end wall of the right rotating shaft 113. The left rotating shaft 113 is driven by a motor 119, which drives two sets of gears 115 to mesh, thereby driving the right rotating shaft 113 to rotate, which in turn drives the right main shaft 130 to rotate. A secondary shaft 132 is rotatably connected to the inner wall of the UAV body 200. A helical gear 131 is fixedly installed on the end wall of the main shaft 130, and a helical gear 133 is fixedly installed on the end wall of the secondary shaft 132, and the helical gear 133 meshes with the helical gear 131. A loading assembly 230 is mounted on the secondary shaft 132. Arc-shaped grooves 220 are formed on the inner walls of both sides of the end of the UAV body 200. The loading assembly 230 includes a connecting bridge 231, which is fixedly connected to the secondary shaft 132. A rotating plate 232 is fixedly mounted on the bottom of the connecting bridge 231, and the middle portions of both sides of the rotating plate 232 are slidably connected to two sets of arc-shaped grooves 220. When the two sets of helical gears mesh, the secondary shaft 132 can drive the connecting bridge 231 to rotate, causing the connecting bridge 231 to drive the rotating plate 232 to rotate. Under the limiting action of the arc-shaped grooves 220, the rotating plate 232 flips over. The bottom of the rotating plate 232 is moved to the top. A first track 233 is fixedly installed at the bottom of the rotating plate 232. A first insertion hole 234 is provided in the middle of the first track 233. A second track 235 is inserted into the inner wall of the first track 233. A second insertion hole 236 is provided in the middle of the second track 235, and the second insertion hole 236 can be used in conjunction with the first insertion hole 234. A first inserter 237 can be inserted into both the second insertion hole 236 and the first insertion hole 234. When changing fire extinguishers, the first inserter 237 can be removed to replace different second tracks 235 on the first track 233. In this invention, the rotating shaft 1 on the right side... 13 can drive the main shaft 130 to rotate, so that the helical gear 131 on the end wall of the main shaft 130 meshes with the helical gear 133 on the secondary shaft 132, thereby driving the secondary shaft 132 to rotate. When the secondary shaft 132 rotates, the guide of the connecting bridge 231 can drive the rotating plate 232 to rotate in the arc groove 220, thereby moving the track 235 installed with the bottom track 233 of the rotating plate 232 from below the drone body 200 to above. Then, the rotor mechanism 124 is used to transport the drone body 200 to the vicinity of the fire, and the fire extinguishing operation can be completed through the fire water pipe.

[0022] In this embodiment, as Figure 2 , Figures 13 to 16As shown, a base bed 240 can be fixedly installed at the bottom of the track 235. The base bed 240 and the track 235 are integral products. Slide rods 241 are fixedly installed on both sides of the base bed 240. Multiple sets of insertion holes 242 are evenly opened at the bottom of the outer slide rods 241. A displacement block 243 is provided in the middle of the base bed 240. Insertion slots 244 are opened on the inner walls of both sides of the displacement block 243. The insertion slots 244 cooperate with the corresponding slide rods 241, and the displacement block 243 is slidably connected to the base bed 240. The bottom of the displacement block 243... The device has a receiving hole 245, which works in conjunction with multiple sets of receiving holes 242. Insertion steel 246 can be inserted into the receiving holes 242 and 245. Displacement blocks 243 can slide on the slide rod 241. The number of displacement blocks 243 installed on the slide rod 241 is selected based on the severity of the fire (the greater the fire, the more fire extinguishing bombs are needed, therefore more displacement blocks 243 are installed on the slide rod 241). After installing multiple sets of displacement blocks 243 on the slide rod 241, the... After inserting the second insert 246 into the third insert hole 242 and the fourth insert hole 245, the displacement block 243 can be fixed. A loading bridge 250 is fixedly installed on the top of the displacement block 243. Clamping slots 251 are opened at the bottom of both ends of the loading bridge 250. A linkage mechanism 252 is installed on the inner walls of both sides of the loading bridge 250, and the linkage mechanism 252 can be used in conjunction with the corresponding clamping slot 251. A second motor 253 is fixedly installed on the inner walls of both sides of the loading bridge 250, and the output end of the second motor 253 is connected to the corresponding linkage mechanism 251. The drive end of the lever mechanism 252 is fixedly connected, and the lever mechanism 252 and the clamp 251 can cooperate to hold the fire extinguishing bomb. In this invention, when fighting open fires or electrical fires, the fire extinguishing bomb is hung between the two sets of clamps 251 and the lever mechanism 252. The rotor mechanism 124 is used to transport the drone body 200 to the fire. Then, the second drive motor 253 separates the lever mechanism 252 from the clamp 251, thereby dropping the fire extinguishing bomb held in the clamp 251 to complete the fire extinguishing operation.

[0023] In this embodiment, as Figure 3 , Figure 17 and Figure 18 As shown, a clip 260 can be fixedly installed at the bottom of the track 235. There are two sets of clips 260, and the two sets of clips 260 can jointly clamp the fire water pipe. The clip 260 and the track 235 are an integral product. When fighting indoor fires or large fires, the track 235 with clips 260 can be removed by pulling out the insert steel 1 237 and taking off the track 235 of the loading base bed 240. The track 235 with clips 260 can be installed on the track 1 233, and the fire water pipe can be installed on the clips 260 for subsequent fire fighting operations.

[0024] The working principle of the technical solution provided by this invention is as follows: When fighting open-air fires or electrical fires, fire extinguishing bombs are hung between the two sets of clamps 251 and the linkage mechanism 252. At this time, the wing adjustment device 100 is located above the UAV body 200, and the loading component 230 is located below the UAV body 200 (see the attached specification). Figure 2 As shown in the figure, the rotor mechanism 124 is used to transport the drone body 200 to the top of the fire. Then, the drive motor 253 causes the linkage mechanism 252 to separate from the clamp 251, thereby dropping the fire extinguishing bomb held in the clamp 251 to complete the fire extinguishing operation. When responding to indoor or large fires, the following steps are taken: The insertion steel bar 237 is removed, and the track 235 of the loading bed 240 is taken off. The track 235 with a clamp 260 is then installed on the track 233, and the fire hose is attached to the clamp 260. At this time, the output shaft of the drive motor 119 drives the rotating shaft 113 to rotate, causing the two sets of gears 115 to mesh. This drives the swing shafts 116 on the two sets of rotating shafts 113 to move downwards, allowing the boom 120 to move from the top to the bottom of the drone body 200. During this process, the connecting rod 118 can pull the connecting seat 121. This ensures that the rotor mechanisms 124 at both ends of the boom 120 remain upward during movement. Simultaneously, the right-side rotating shaft 113 drives the main shaft 130 to rotate, causing the helical gear 131 on the end wall of the main shaft 130 to mesh with the helical gear 133 on the secondary shaft 132, thus driving the secondary shaft 132 to rotate. When the secondary shaft 132 rotates, the guide of the connecting bridge 231 drives the rotating plate 232 to rotate within the arc-shaped groove 220, thereby moving the track 235, which is installed with the bottom track 233 of the rotating plate 232, from below the UAV body 200 to above (refer to the instruction manual). Figure 3 (As shown), the drone body 200 is then transported to the vicinity of the fire using the rotor mechanism 124, and fire extinguishing operations can be completed through the fire hose.

[0025] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0026] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A firefighting drone, comprising a wing adjustment device (100) and a drone body (200), wherein the wing adjustment device (100) is installed inside the drone body (200) and can change the loading mode of the drone body (200), characterized in that, The inner walls on both sides of the UAV body (200) are fixedly installed with double frames (210). The wing adjustment device (100) includes a swing assembly (110). There are two sets of swing assemblies (110). The two sets of swing assemblies (110) are symmetrically arranged and are installed between the two sets of double frames (210). The swing assembly (110) includes a cylindrical shell (111), which is formed by two sets of semi-circular shells fixedly connected by bolts. The two ends of the cylindrical shell (111) are fixedly connected to the inner walls of two sets of double-linked frames (210). A swing groove (112) is provided on the outer wall of the middle part of the cylindrical shell (111). A rotating shaft (113) is provided inside the cylindrical shell (111). Bearings (114) are installed at both ends of the rotating shaft (113). The rotating shaft (113) is rotatably connected to the cylindrical shell (111) through two sets of bearings (114). A swing shaft (116) is welded to the outer wall of the middle part of the rotating shaft (113). The end wall of the swing shaft (116) is located in the swing groove (112) and is rotatably connected to the swing groove (112). A gear (115) is fixedly installed on the outer end of the rotating shaft (113), and the two sets of gears (115) mesh with each other.

2. The firefighting drone according to claim 1, characterized in that, The swing shaft (116) is provided with a support arm (120) at its outer end. A connecting seat (121) is fixedly installed in the middle of the support arm (120). A three-way pipe (122) is rotatably connected to the outer wall of the middle part of the support arm (120). A central groove (123) is opened at the center of the top of the three-way pipe (122), and the connecting seat (121) is located in the central groove (123). The end wall of the swing shaft (116) is inserted into the outer end of the three-way pipe (122). The cylindrical shell ( 111) A positioning seat (117) is fixedly installed at the top center. A connecting rod (118) is rotatably connected to the positioning seat (117), and the other end of the connecting rod (118) is rotatably connected to the top of the connecting seat (121). Rotor mechanisms (124) are installed at both ends of the support arm (120). A motor (119) is fixedly installed on the inner wall of the UAV body (200), and the output end of the motor (119) is fixedly connected to the end wall of the left rotating shaft (113).

3. A firefighting drone according to claim 1, characterized in that, The inner wall of the UAV body (200) is rotatably connected to a main shaft (130), the main shaft (130) is fixedly connected to the end wall of the right rotating shaft (113), the inner wall of the UAV body (200) is rotatably connected to a secondary shaft (132), the end wall of the main shaft (130) is fixedly installed with a helical gear one (131), the end wall of the secondary shaft (132) is fixedly installed with a helical gear two (133), and the helical gear two (133) meshes with the helical gear one (131), and a loading assembly (230) is installed on the secondary shaft (132).

4. A firefighting drone according to claim 3, characterized in that, The inner walls of both ends of the UAV body (200) are provided with arc-shaped grooves (220). The loading assembly (230) includes a bridge (231), which is fixedly connected to the sub-shaft (132). A rotating plate (232) is fixedly installed at the bottom of the bridge (231), and the middle parts of both sides of the rotating plate (232) are slidably connected to two sets of arc-shaped grooves (220). The bottom of the rotating plate (232) is fixedly installed with... The first track (233) has a receiving hole (234) in the middle. The second track (235) is inserted into the inner wall of the first track (233). The second track (235) has a receiving hole (236) in the middle. The second receiving hole (236) can be used in conjunction with the first receiving hole (234). The first inserting steel (237) can be inserted into the second receiving hole (236) and the first receiving hole (234).

5. A firefighting drone according to claim 4, characterized in that, A base bed (240) can be fixedly installed at the bottom of the second track (235). Slide rods (241) are fixedly installed on both sides of the base bed (240). Multiple sets of insertion holes (242) are evenly distributed at the bottom of the outer slide rods (241). A displacement block (243) is provided in the middle of the base bed (240). Insertion slots (244) are provided on the inner walls of both sides of the displacement block (243). The insertion slots (244) cooperate with the corresponding slide rods (241), and the displacement block (243) is slidably connected to the base bed (240). An insertion hole (245) is provided at the bottom of the displacement block (243), and the insertion hole (245) cooperates with multiple sets of insertion holes (242). Insertion steel 2 (246) can be inserted into insertion hole 3 (242) and insertion hole 4 (245). Loading bridge (250) is fixedly installed on the top of displacement block (243). Clamping slots (251) are opened at the bottom of both ends of loading bridge (250). Linkage mechanism (252) is installed on both sides of the inner wall of loading bridge (250). Linkage mechanism (252) can be used in conjunction with the corresponding clamping slot (251). Motor 2 (253) is fixedly installed on both sides of the inner wall of loading bridge (250). The output end of motor 2 (253) is fixedly connected to the driving end of the corresponding linkage mechanism (252). Linkage mechanism (252) and clamping slot (251) can be used to clamp fire extinguishing bomb.

6. A firefighting drone according to claim 4, characterized in that, The bottom of the second track (235) can be fixedly installed with a clip (260). There are two sets of clips (260), and the two sets of clips (260) can jointly clamp the fire water pipe.

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