Fire extinguishing unmanned aerial vehicle for fire fighting

Abstract

The invention provides a fire extinguishing unmanned aerial vehicle for fire fighting, and relates to the field of fire fighting. The fire extinguishing unmanned aerial vehicle for fire fighting comprises a rack structure, a throwing structure is arranged at the center of the lower end face of the rack structure, three supporting frames are arranged at the position, close to the edge, of the center of the lower end face of the rack structure in a circumferential array mode, and a launching structure is arranged at the position, close to the rear side, of the inner center of the throwing structure. By arranging the throwing structure, during use, a first connecting base is movably connected with a tail plate, the vertical inclination angle of a launching tube can be adjusted in the process that a first low-speed motor drives one side wall of the tail plate to rotate, position adjustment can be conveniently carried out according to ignition points at different positions, and through cooperation with a coiled pipe, the ignition points can be conveniently put into the launching tube; even if the angle is changed, the normal throwing of the internal fire extinguishing bomb is not influenced.

Description

Technical Field

[0001] This invention relates to the field of fire fighting technology, specifically to a fire-fighting drone. Background Technology

[0002] Traditional firefighting methods are often limited when facing fires deep in forests or fires in complex terrain. For example, in forest fires, the complex terrain makes it difficult for fire trucks to penetrate deep into the area, making firefighting work difficult. Due to their advantages such as rapid response and high mobility, drones are widely used in the firefighting industry.

[0003] Currently, while existing firefighting drones on the market have alleviated the above problems to some extent, they still have certain shortcomings: most drones use a method of suspending fire extinguishing bombs to load them, and then rely on the bombs' own weight to drop them from top to bottom. When a fire occurs inside a building, relying on gravity cannot achieve accurate delivery, and the number of fire extinguishing bombs they can carry is limited, sometimes only one or two. After the deployment is completed, they need to return to reload fire extinguishing bombs, which is inefficient. Furthermore, existing drones have low overall protection when flying indoors and inside buildings. Therefore, those skilled in the art provide a firefighting drone to solve the problems mentioned in the background art. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a fire-fighting drone that solves the problems of low accuracy and small overall ammunition load during the deployment of fire extinguishing bombs by existing drones.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solution: a fire-fighting drone, including a frame structure, a delivery structure is provided at the center of the lower end face of the frame structure, three support frames are arranged in a circular array near the edge of the center of the lower end face of the frame structure, and a launching structure is provided at the rear side of the inner center of the delivery structure;

[0008] The delivery structure includes a connecting slide plate, the upper end of which is fixedly connected to the center of the lower end face of the frame structure. A delivery box is provided at the lower end of the connecting slide plate, and the upper end of the delivery box is slidably connected to the lower end of the connecting slide plate. A bottom plate is provided through the center of the lower end face of the delivery box. A first connecting seat is fixedly connected to the center of the front side wall of the delivery box. A tail plate is provided at the front end of the first connecting seat. The rear end of the tail plate is movably connected to the first connecting seat. A first low-speed motor is fixedly connected to the center of the side wall of the first connecting seat on one side. The output end of the first low-speed motor passes through the side wall of the first connecting seat on one side and leads to the interior, and its end is fixedly connected to the side wall of the tail plate. A launching tube is fixedly connected to the center of the front side wall of the tail plate. The rear end of the launching tube passes through the front side wall of the tail plate and leads to the rear end, and its end is fixedly connected to a serpentine tube. A first connecting tube is fixedly connected to the rear end of the serpentine tube. The rear end of the first connecting tube passes through the front side wall of the delivery box and leads to the interior, and its end is connected to the front side wall of the launching structure.

[0009] Preferably, the launching structure includes a housing, the upper end of which is fixedly connected to the center of the upper inner wall of the launch box. A temporary storage tube is provided inside the housing, and a connecting frame is provided inside the temporary storage tube. The rear end of the connecting frame passes through the rear inner wall of the temporary storage tube and the rear inner wall of the housing and extends to the rear end, and an elastic rope is fixedly connected to the end of the frame. Two first springs are fixedly connected to the center of the rear side wall of the housing in front of the elastic rope on both sides. The other ends of the two first springs are fixedly connected to the front side wall of the elastic rope. A telescopic device is fixedly connected to the center of the rear inner wall of the launch box. An adjusting plate is fixedly connected to the output end of the telescopic device. A second low-speed motor is fixedly connected through the center of one side wall of the adjusting plate. The output end of the second low-speed motor passes through the side wall of the adjusting plate and extends to the interior, and a buckle is fixedly connected to the end of the motor.

[0010] Preferably, the launching structure further includes a magazine and a connecting hole. A connecting hole is provided at the center of one side wall of the delivery box. A magazine is provided inside the connecting hole. A through hole is provided at the center of the lower inner wall of the connecting hole at the lower end of the magazine. A partition plate is provided inside the through hole. The side wall of the partition plate is fixedly connected to the inner side wall of the through hole. A second spring is provided at the upper end of the through hole. The lower end of the second spring is fixedly connected to the upper end surface of the partition plate. A locking block is fixedly connected to the upper end of the second spring. A tension rope is fixedly connected at the center of the lower end surface of the locking block. The lower end of the tension rope passes through the second spring and the partition plate and extends to the lower end. A limit block is fixedly connected to the end of the rope. The upper end of the locking block engages with the lower end surface of the magazine. Multiple fire extinguishing bullets are provided inside the magazine.

[0011] Preferably, the frame structure includes a chassis, a main unit is fixedly connected to the center of the upper surface of the chassis, a connecting ring is fixedly connected to the upper end of the main unit, a signal receiver is fixedly connected to the center of the upper surface of the connecting ring, a frame is provided on the outside of the chassis, a reflective strip is fixedly connected to the center of the side wall of the frame, the side wall of the connecting ring is fixedly connected to the inner side wall of the frame by multiple connecting rods, and multiple wings are arranged in a circular array near the edge of the center of the upper surface of the chassis.

[0012] Preferably, the upper end face of the connecting ring has a circumferential array of multiple warning lights near the edge.

[0013] Preferably, the adjusting plate is C-shaped.

[0014] Preferably, the telescopic device and the connecting frame are coaxial.

[0015] Preferably, the base plate and the delivery box are detachably connected.

[0016] (III) Beneficial Effects

[0017] This invention provides a firefighting drone. It has the following beneficial effects:

[0018] 1. In this invention, by setting a frame structure and setting the shape of the frame to be circular, the connecting ring and the frame are fixedly connected by multiple connecting rods. The circular shape helps to improve the overall stability and wind resistance, can provide better airflow distribution during flight, reduce air resistance, and set multiple wings inside the frame, which can provide good protection for the wings when flying inside buildings. The multiple warning lights and reflective strips facilitate the observation and positioning of the drone's position.

[0019] 2. In this invention, by setting up a delivery structure, during use, by utilizing the movable connection between the first connecting seat and the tail plate, the vertical tilt angle of the launch tube can be adjusted during the rotation of one side wall of the tail plate driven by the first low-speed motor, which facilitates positional adjustment for different ignition points. Furthermore, by cooperating with the serpentine tube, even if the angle changes, it will not affect the normal delivery of the internal fire extinguishing bomb.

[0020] 3. In this invention, by setting up a launching structure, during use, the magazine is inserted into the connecting hole and leads to the middle of the temporary storage tube inside the housing. Then, the telescopic device is controlled to move the buckle forward. Subsequently, the second low-speed motor drives the buckle to rotate, using the buckle to hook the elastic rope. Then, the telescopic device is controlled to move backward, thereby stretching the two first springs and simultaneously moving the connecting frame backward. When the launching angle is adjusted, the second low-speed motor is controlled to rotate in the opposite direction, causing the buckle to release from the side wall of the elastic rope. Under the elastic action of the two first springs, the connecting frame is quickly pushed forward, thereby ejecting the fire extinguishing bullets inside the magazine. The bullets are launched along the first connecting tube, the serpentine tube, and the adjusted launching tube to the designated position. After ejection, the above steps are repeated, and the fire extinguishing bullets inside the magazine will continue to be replenished for the next use. This method is fast and efficient. Attached Figure Description

[0021] Figure 1 This is an isometric view of the overall structure of the present invention;

[0022] Figure 2 This is an isometric view of the overall structure of the present invention from another perspective;

[0023] Figure 3 This is a top view of the present invention;

[0024] Figure 4 This is an isometric view of the deployment structure in this invention;

[0025] Figure 5 This is an axonometric view of the projection structure from another perspective in this invention;

[0026] Figure 6 This is a partial cross-sectional view of the magazine connection in this invention.

[0027] Among them, 1. Frame structure; 101. Connecting support rod; 102. Warning light; 103. Connecting ring; 104. Signal receiver; 105. Reflective strip; 106. Chassis; 107. Main unit; 108. Wing; 109. Frame; 2. Support frame; 3. Launching structure; 301. Launch box; 302. Connecting slide plate; 303. First connecting pipe; 304. Base plate; 305. First connecting seat; 306. Launch tube; 307. Tail plate; 308. ... 1. Low-speed motor; 309. Serpentine tube; 4. Launching structure; 401. Temporary storage tube; 402. First spring; 403. Elastic rope; 404. Second low-speed motor; 405. Telescopic device; 406. Adjusting plate; 407. Buckle; 408. Connecting frame; 409. Connecting hole; 410. Box; 411. Magazine; 412. Fire extinguishing bomb; 413. Locking block; 414. Second spring; 415. Limiting block; 416. Tension rope; 417. Through hole. Detailed Implementation

[0028] 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.

[0029] Example 1:

[0030] like Figure 1-6 As shown, this embodiment of the invention provides a fire-fighting drone, including a frame structure 1, a delivery structure 3 is provided at the center of the lower end face of the frame structure 1, three support frames 2 are arranged in a circular array at the center of the lower end face of the frame structure 1 near the edge, and a launching structure 4 is provided at the rear side of the inner center of the delivery structure 3.

[0031] The dispensing structure 3 includes a connecting slide plate 302. The upper end of the connecting slide plate 302 is fixedly connected to the center of the lower end face of the frame structure 1. A dispensing box 301 is provided at the lower end of the connecting slide plate 302. The upper end of the dispensing box 301 is slidably connected to the lower end of the connecting slide plate 302. A bottom plate 304 is provided through the center of the lower end face of the dispensing box 301. A first connecting seat 305 is fixedly connected to the center of the front side wall of the dispensing box 301. A tail plate 307 is provided at the front end of the first connecting seat 305. The rear end of the tail plate 307 is movably connected to the first connecting seat 305. A first low-speed motor 308 is fixedly connected to the center of the side wall of the first connecting seat 305. The output end of the first low-speed motor 308 passes through the side wall of the first connecting seat 305 and extends into the interior. The end is fixedly connected to the side wall of the tail plate 307. A launching tube 306 is fixedly connected to the center of the front side wall of the tail plate 307. The rear end of the launching tube 306 passes through the front side wall of the tail plate 307 and extends to the rear end. A serpentine tube 309 is fixedly connected to the end of the serpentine tube 309. A first connecting tube 303 is fixedly connected to the rear end of the serpentine tube 309. The rear end of the first connecting tube 303 passes through the front side wall of the delivery box 301 and extends to the interior. The end of the first connecting tube 303 is connected to the front side wall of the launching structure 4. By utilizing the movable connection between the first connecting seat 305 and the tail plate 307, the vertical tilt angle of the launching tube 306 can be adjusted during the rotation of one side wall of the tail plate 307 driven by the first low-speed motor 308. This facilitates positional adjustment for different ignition points. Furthermore, by cooperating with the serpentine tube 309, the normal delivery of the internal fire extinguishing bomb 412 will not be affected even if the angle changes.

[0032] The launch structure 4 includes a housing 410. The upper end of the housing 410 is fixedly connected to the center of the upper inner wall of the launch box 301. A temporary storage tube 401 is provided inside the housing 410. A connecting frame 408 is provided inside the temporary storage tube 401. The rear end of the connecting frame 408 passes through the rear inner wall of the temporary storage tube 401 and the rear inner wall of the housing 410 and extends to the rear end. An elastic rope 403 is fixedly connected to the end of the frame. On both sides of the center of the rear side wall of the housing 410 in front of the elastic rope 403, there are two fixed connections. The first spring 402, the other ends of the two first springs 402 are respectively fixedly connected to the front side wall of the elastic rope 403. A telescopic device 405 is fixedly connected to the center of the rear inner wall of the delivery box 301. An adjusting plate 406 is fixedly connected to the output end of the telescopic device 405. A second low-speed motor 404 is fixedly connected through the center of one side wall of the adjusting plate 406. The output end of the second low-speed motor 404 passes through the side wall of the adjusting plate 406 and leads to the interior, and a buckle 407 is fixedly connected to the end.

[0033] The launching structure 4 also includes a magazine 411 and a connecting hole 409. A connecting hole 409 is provided at the center of one side wall of the delivery box 301. The magazine 411 is housed inside the connecting hole 409. A through hole 417 is provided at the center of the lower inner wall of the connecting hole 409 at the lower end of the magazine 411. A partition plate is provided inside the through hole 417, and the side wall of the partition plate is fixedly connected to the inner side wall of the through hole 417. A second spring 414 is provided at the upper end of the through hole 417, and the lower end of the second spring 414 is fixedly connected to the inner side wall of the through hole 417. A locking block 413 is fixedly connected to the upper end of the partition plate. A tension rope 416 is fixedly connected to the center of the lower end face of the locking block 413. The lower end of the tension rope 416 passes through the second spring 414 and the partition plate and extends to the lower end. A limit block 415 is fixedly connected to the end of the rope. The upper end of the locking block 413 engages with the lower end face of the magazine 411. The magazine 411 contains multiple fire extinguishing bullets 412. The magazine 411 is inserted into the connecting hole 409. Inside the housing 410, the cable passes through the middle of the temporary storage tube 401. Then, by controlling the telescopic device 405, the latch 407 moves forward. Next, the second low-speed motor 404 rotates the latch 407, hooking the elastic rope 403. Then, the telescopic device 405 moves backward, stretching the two first springs 402 and simultaneously moving the connecting frame 408 backward. When the launch angle is adjusted, the second low-speed motor 404... 04. Reverse rotation causes the latch 407 to release from the side wall of the elastic rope 403. Under the elastic action of the two first springs 402, the connecting frame 408 is quickly pushed forward, thereby ejecting the fire extinguishing bullet 412 inside the magazine 411. The bullet is then launched at the designated position along the first connecting tube 303, the serpentine tube 309, and the adjusted firing tube 306. After ejection, the above steps are repeated, and the fire extinguishing bullet 412 inside the magazine 411 will continue to be replenished for the next use. This method is fast and efficient.

[0034] The frame structure 1 includes a chassis 106. A main unit 107 is fixedly connected to the center of the upper surface of the chassis 106. A connecting ring 103 is fixedly connected to the upper end of the main unit 107. A signal receiver 104 is fixedly connected to the center of the upper surface of the connecting ring 103. A frame 109 is provided on the outside of the chassis 106. A reflective strip 105 is fixedly connected to the center of the side wall of the frame 109. The side wall of the connecting ring 103 and the inner side wall of the frame 109 are fixedly connected by multiple connecting rods 101. Multiple wings 108 are arranged in a circular array near the edge of the center of the upper surface of the chassis 106. By setting the frame structure 1, the frame 109 is made into a ring shape. The connecting ring 103 is fixedly connected to the frame 109 by multiple connecting rods 101. The ring shape helps to improve the overall stability and wind resistance, and can provide better airflow distribution during flight, reduce air resistance. Multiple wings 108 are set inside the frame 109, which can provide good protection for the wings 108 when flying inside buildings. Multiple warning lights 102 and reflective strips 105 are set to facilitate the observation and positioning of the UAV.

[0035] The upper end face of the connecting ring 103 has a circular array of multiple warning lights 102 near the edge. The adjusting plate 406 is C-shaped. The telescopic device 405 and the connecting frame 408 are coaxial. The base plate 304 and the delivery box 301 are detachably connected.

[0036] Example 2: The difference from Example 1 is that the delivery structure 3 can be set as a fixed structure, and the angle and position can be adjusted by adjusting the whole structure to achieve precise delivery;

[0037] like Figure 1-6 As shown, this embodiment of the invention provides a fire-fighting drone, including a frame structure 1, a delivery structure 3 is provided at the center of the lower end face of the frame structure 1, three support frames 2 are arranged in a circular array near the edge of the center of the lower end face of the frame structure 1, and a launching structure 4 is provided at the rear side of the inner center of the delivery structure 3.

[0038] The launch structure 4 includes a housing 410. The upper end of the housing 410 is fixedly connected to the center of the upper inner wall of the launch box 301. A temporary storage tube 401 is provided inside the housing 410. A connecting frame 408 is provided inside the temporary storage tube 401. The rear end of the connecting frame 408 passes through the rear inner wall of the temporary storage tube 401 and the rear inner wall of the housing 410 and extends to the rear end. An elastic rope 403 is fixedly connected to the end of the frame. On both sides of the center of the rear side wall of the housing 410 in front of the elastic rope 403, there are two fixed connections. The first spring 402, the other ends of the two first springs 402 are respectively fixedly connected to the front side wall of the elastic rope 403. A telescopic device 405 is fixedly connected to the center of the rear inner wall of the delivery box 301. An adjusting plate 406 is fixedly connected to the output end of the telescopic device 405. A second low-speed motor 404 is fixedly connected through the center of one side wall of the adjusting plate 406. The output end of the second low-speed motor 404 passes through the side wall of the adjusting plate 406 and leads to the interior, and a buckle 407 is fixedly connected to the end.

[0039] The launching structure 4 also includes a magazine 411 and a connecting hole 409. A connecting hole 409 is provided at the center of one side wall of the delivery box 301. The magazine 411 is housed inside the connecting hole 409. A through hole 417 is provided at the center of the lower inner wall of the connecting hole 409 at the lower end of the magazine 411. A partition plate is provided inside the through hole 417, and the side wall of the partition plate is fixedly connected to the inner side wall of the through hole 417. A second spring 414 is provided at the upper end of the through hole 417. The lower end of the second spring 414 is fixedly connected to the upper surface of the partition plate. A locking block 413 is fixedly connected to the upper end of the second spring 414. A tension rope 416 is fixedly connected at the center of the lower end face of the locking block 413. The lower end of the tension rope 416 passes through the second spring 414 and the partition plate and extends to the lower end. A limit block 415 is fixedly connected to the end of the rope. The upper end of the locking block 413 engages with the lower end face of the magazine 411. The magazine 411 contains multiple... The fire extinguishing grenade 412 is produced by inserting the magazine 411 into the connecting hole 409, which leads to the middle of the temporary storage tube 401 inside the housing 410. Then, the telescopic device 405 is controlled to move the latch 407 forward. Subsequently, the second low-speed motor 404 drives the latch 407 to rotate, using the latch 407 to hook the elastic rope 403. Then, the telescopic device 405 is controlled to move backward, thereby stretching the two first springs 402 and simultaneously moving the connecting frame 408 backward. When the firing angle is adjusted, the second low-speed motor 404 is controlled to rotate in the opposite direction, causing the latch 407 to release from the side wall of the elastic rope 403. Under the elastic action of the two first springs 402, the connecting frame 408 is quickly pushed forward, thereby ejecting the fire extinguishing grenade 412 from inside the magazine 411. The fire extinguishing grenade 412 inside the magazine 411 will be replenished for the next use. This method is fast and efficient.

[0040] The frame structure 1 includes a chassis 106. A main unit 107 is fixedly connected to the center of the upper surface of the chassis 106. A connecting ring 103 is fixedly connected to the upper end of the main unit 107. A signal receiver 104 is fixedly connected to the center of the upper surface of the connecting ring 103. A frame 109 is provided on the outside of the chassis 106. A reflective strip 105 is fixedly connected to the center of the side wall of the frame 109. The side wall of the connecting ring 103 and the inner side wall of the frame 109 are fixedly connected by multiple connecting rods 101. Multiple wings 108 are arranged in a circular array near the edge of the center of the upper surface of the chassis 106. By setting the frame structure 1, the frame 109 is made into a ring shape. The connecting ring 103 is fixedly connected to the frame 109 by multiple connecting rods 101. The ring shape helps to improve the overall stability and wind resistance, and can provide better airflow distribution during flight, reduce air resistance. Multiple wings 108 are set inside the frame 109, which can provide good protection for the wings 108 when flying inside buildings. Multiple warning lights 102 and reflective strips 105 are set to facilitate the observation and positioning of the UAV.

[0041] The upper end face of the connecting ring 103 has a circular array of multiple warning lights 102 near the edge. The adjusting plate 406 is C-shaped. The telescopic device 405 and the connecting frame 408 are coaxial. The base plate 304 and the delivery box 301 are detachably connected.

[0042] Working principle: This application is a fire-fighting drone. By setting the frame 109 to a circular shape, the connecting ring 103 is fixedly connected to the frame 109 by multiple connecting rods 101. The circular shape helps to improve the overall stability and wind resistance, and can provide better airflow distribution and reduce air resistance during flight. Multiple wings 108 are set inside the frame 109, which can provide good protection for the wings 108 when flying inside buildings. Multiple warning lights 102 and reflective strips 105 are set to facilitate the observation and positioning of the drone's position.

[0043] By utilizing the movable connection between the first connecting seat 305 and the tail plate 307, the vertical tilt angle of the launching tube 306 can be adjusted during the rotation of one side wall of the tail plate 307 driven by the first low-speed motor 308, which facilitates positional adjustment for different ignition points. Furthermore, by cooperating with the serpentine tube 309, the normal deployment of the internal fire extinguishing bomb 412 will not be affected even if the angle changes.

[0044] By inserting the magazine 411 into the connecting hole 409 and connecting it to the middle of the temporary storage tube 401 inside the housing 410, the telescopic device 405 is controlled to move the latch 407 forward. Then, the second low-speed motor 404 drives the latch 407 to rotate, hooking the elastic rope 403. The telescopic device 405 is then controlled to move backward, stretching the two first springs 402 and simultaneously moving the connecting frame 408 backward. When the firing angle is adjusted, the control... The second low-speed motor 404 is rotated in the opposite direction, causing the latch 407 to be released from the side wall of the elastic rope 403. Under the elastic action of the two first springs 402, the connecting frame 408 is pushed forward quickly, thereby pushing out the fire extinguishing bullet 412 inside the magazine 411. The bullet is then launched to the designated position along the first connecting tube 303, the serpentine tube 309, and the adjusted launching tube 306. After being pushed out, the above steps are repeated, and the fire extinguishing bullet 412 inside the magazine 411 will continue to be replenished for the next use. This method is fast and efficient.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fire extinguishing drone for firefighting, comprising a frame structure (1), characterized in that: The lower end face center of the rack structure (1) is provided with a delivery structure (3), and three support frames (2) are arranged in a circular array at the edge of the lower end face center of the rack structure (1); the inner center of the delivery structure (3) is provided with a launching structure (4) at the rear side; The delivery structure (3) comprises a connecting slide plate (302), the upper end of the connecting slide plate (302) is fixedly connected at the lower end face center of the rack structure (1), the lower end of the connecting slide plate (302) is provided with a delivery box (301), the upper end of the delivery box (301) is slidably connected with the lower end of the connecting slide plate (302), the lower end face center of the delivery box (301) is provided with a bottom plate (304) penetrating through, the center of the front side wall of the delivery box (301) is fixedly connected with a first connecting seat (305), the front end of the first connecting seat (305) is provided with a tail plate (307), the rear end of the tail plate (307) is movably connected with the first connecting seat (305), the center of the side wall of the first connecting seat (305) on one side is fixedly connected with a first low-speed motor (308), the output end of the first low-speed motor (308) penetrates through the side wall of the first connecting seat (305) on one side and extends to the inside, and the end is fixedly connected on one side wall of the tail plate (307), the center of the front side wall of the tail plate (307) is fixedly connected with a launching tube (306), the rear end of the launching tube (306) penetrates through the front side wall of the tail plate (307) and extends to the rear end, and the end is fixedly connected with a coiled tube (309), the rear end of the coiled tube (309) is fixedly connected with a first connecting pipe (303), the rear end of the first connecting pipe (303) penetrates through the front side wall of the delivery box (301) and extends to the inside, and the end is connected on the front side wall of the launching structure (4).

2. The fire extinguishing drone according to claim 1, characterized in that: The launching structure (4) comprises a box body (410), the upper end of the box body (410) is fixedly connected at the center of the upper inner wall of the delivery box (301), the inside of the box body (410) is provided with a temporary storage pipe (401), the inside of the temporary storage pipe (401) is provided with a connecting frame (408), the rear end of the connecting frame (408) penetrates through the rear inner wall of the temporary storage pipe (401) and the rear inner wall of the box body (410) and extends to the rear end, and the end is fixedly connected with an elastic rope (403), the center of the rear side wall of the box body (410) on the front side of the elastic rope (403) is fixedly connected with a first spring (402) on both sides, the other end of the two first springs (402) is fixedly connected on the front side wall of the elastic rope (403), the center of the rear inner wall of the delivery box (301) is fixedly connected with a telescopic device (405), the output end of the telescopic device (405) is fixedly connected with an adjusting plate (406), the center of the side wall of the adjusting plate (406) is fixedly connected with a second low-speed motor (404) penetrating through, the output end of the second low-speed motor (404) penetrates through the side wall of the adjusting plate (406) and extends to the inside, and the end is fixedly connected with a buckle (407).

3. The fire extinguishing drone according to claim 1, characterized in that: The launching structure (4) further comprises a spring clip (411) and a connecting hole (409), a connecting hole (409) is arranged at the center of one side wall of the delivery box (301), the inside of the connecting hole (409) is provided with a spring clip (411), a through hole (417) is arranged at the center of the lower inner wall of the connecting hole (409) below the spring clip (411), the inside of the through hole (417) is provided with a partition plate, the side wall of the partition plate is fixedly connected to the inner side wall of the through hole (417), a second spring (414) is arranged at the upper end of the inside of the through hole (417), the lower end of the second spring (414) is fixedly connected to the upper end face of the partition plate, a clamping block (413) is fixedly connected to the upper end of the second spring (414), a tension rope (416) is fixedly connected to the center of the lower end face of the clamping block (413), the lower end of the tension rope (416) penetrates through the second spring (414) and the partition plate and extends to the lower end, and a limiting block (415) is fixedly connected to the end portion, the upper end of the clamping block (413) is matched and clamped in the inside of the lower end face of the spring clip (411), and a plurality of fire extinguishing bombs (412) are arranged in the inside of the spring clip (411).

4. The fire-fighting unmanned extinguishing drone according to claim 1, characterized in that: The rack structure (1) comprises a chassis (106), a main machine (107) is fixedly connected to the center of the upper end face of the chassis (106), a connecting ring (103) is fixedly connected to the upper end of the main machine (107), a signal receiver (104) is fixedly connected to the center of the upper end face of the connecting ring (103), a frame (109) is arranged outside the chassis (106), a reflective strip (105) is fixedly connected to the center of the side wall of the frame (109) in a sleeved manner, and the side wall of the connecting ring (103) and the inner side wall of the frame (109) are fixedly connected through a plurality of connecting struts (101), and a plurality of airfoils (108) are circumferentially arranged at the center of the upper end face of the chassis (106) near the edge.

5. The fire-fighting unmanned extinguishing drone according to claim 4, characterized in that: A plurality of warning lights (102) are circumferentially arranged at the center of the upper end face of the connecting ring (103) near the edge.

6. The fire-fighting unmanned extinguishing drone according to claim 2, characterized in that: The shape of the adjusting plate (406) is C-shaped.

7. The fire-fighting unmanned drone of claim 2, wherein: The telescopic device (405) and the connecting frame (408) are coaxial.

8. The fire-fighting unmanned drone of claim 1, wherein: The bottom plate (304) and the delivery box (301) are detachably connected.

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