Fire-fighting unmanned aerial vehicle with good stability

Abstract

The fire-fighting unmanned aerial vehicle with the good stability comprises a transportation assembly, the transportation assembly comprises an unmanned aerial vehicle body, the output end of the top of the unmanned aerial vehicle body is connected with a transmission shaft, paddles are installed through the transmission shaft, the corners of a shell of the unmanned aerial vehicle body are designed to be arc-shaped, and a sliding rail is installed at the bottom of the unmanned aerial vehicle body; and a plurality of groups of sliding rails are arranged, and sliding blocks are slidably mounted through the sliding rails. By arranging the transportation assembly, various needed materials can be conveniently loaded through the storage bin, meanwhile, the limiting clamping block can be driven to fix the storage bin, rapid loading of the materials is completed, meanwhile, material putting can be rapidly and conveniently completed, and the practicability is high. The problem that a traditional fire-fighting unmanned aerial vehicle cannot rapidly load and put materials during use is solved, tedious steps are avoided, the material conveying efficiency is greatly improved, meanwhile, the material receiving efficiency of a fire-fighting base station is improved, and the situation that the materials are insufficient in emergency is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles (UAVs), and in particular to a fire-fighting UAV with good stability. Background Art

[0002] A drone, or unmanned aerial vehicle, is a type of flying device controlled by remote control, autonomous programming, or artificial intelligence, without the need for a human pilot. Drones are commonly used in logistics, agricultural lifting, urban services, and emergency rescue. For example, machine learning algorithms can be used to optimize flight paths and obstacle avoidance, while agricultural drones can be used for intelligent diagnosis of pests and diseases and precise application of pesticides. Firefighting in forests or mountainous areas requires large quantities of firefighting supplies, necessitating the establishment of firefighting base stations to store these supplies. However, due to the rugged terrain of forests, mountains, and hills, reliably transporting these supplies to the base stations is difficult for vehicles. Therefore, the use of firefighting drones makes transportation more convenient and efficient.

[0003] After searching, the Chinese patent application number 202220165378.7 discloses a firefighting drone, which includes a drone body and a base frame. The drone body is provided with a control unit for controlling the flight of the drone body; the base frame is loaded with fire extinguishing bombs, and the control unit is also used to control the release of the fire extinguishing bombs; wherein, one of the drone body and the base frame is provided with a buckle, and the other is provided with a slot, and the buckle is engaged with the slot. The firefighting drone in the above patent has the following shortcomings: it is not possible to load and deliver supplies conveniently and quickly during use. The process is relatively cumbersome, and it is impossible to complete the loading and delivery of supplies quickly, which will reduce the efficiency of supply transportation and greatly reduce the efficiency of receiving supplies at the fire base station, resulting in a shortage of supplies in an emergency. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the existing technology and to propose a fire-fighting drone with good stability.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A fire-fighting drone with good stability includes a transport component, the transport component including a drone body, an output end at the top of the drone body is connected to a transmission shaft, and a blade is installed through the transmission shaft. The corners of the shell of the drone body are of arc-shaped design, a slide rail is installed at the bottom of the drone body, and the slide rail is provided with several groups. A slider is slidably installed through the slide rail. A storage bin is installed at the bottom of the slider, and limit slots are symmetrically provided on both sides of the storage bin. A support frame is installed at the bottom of the drone body, and a first spring is installed on one side of the support frame. The first springs are arranged in sequence in several groups, and a first mounting seat is installed at the bottom of the drone body. A limit block is rotatably installed through the first mounting seat, and the position and size of the limit block are adapted to the limit slot. One end of the first spring is fixed to the limit block, and a third mounting seat is installed on one side of the limit block. A connecting block is rotatably installed through the third mounting seat, and a pull rod is installed on one side of the connecting block. An opening is provided on one side of the support frame, and one end of the pull rod passes through the opening of the support frame. A handle is installed at the end of the pull rod. A delivery component for delivering materials and a limit component for fixing the position of the limit block are provided on one side of the storage bin.

[0007] As a further solution of the present invention: the delivery component includes a second mounting seat, and the second mounting seat is provided in two groups, which are symmetrically installed on the outer walls on both sides of the storage bin. A second rotating motor is installed on one side of the second mounting seat, and the output end of one side of the second rotating motor is connected to a second rotating shaft. One end of the second rotating shaft can rotate through the second mounting seat, and a closed bottom plate is installed on the second rotating shaft.

[0008] As a further solution of the present invention: the limit assembly includes a mounting bracket, and the mounting bracket is provided with several groups, which are respectively installed on the outer walls on both sides of the storage bin, and an electric telescopic rod is installed on one side of the mounting bracket. The telescopic end on one side of the electric telescopic rod can slide through the mounting bracket, and fixing holes are symmetrically opened on both sides of the limit block, and the position and size of the telescopic end of the electric telescopic rod are adapted to the fixing holes.

[0009] As a further solution of the present invention: a group of connecting brackets are symmetrically installed on the outer walls on both sides of the storage bin, a first rotating motor is installed at the bottom of the connecting bracket, the output end of the bottom of the first rotating motor is connected to the first rotating shaft, and a limiting block is installed at one end of the first rotating shaft.

[0010] As a further solution of the present invention: several groups of fixing frames are installed on the top of the drone body, and an adjusting frame is slidably installed through the fixing frame. The adjusting frame has several groups of positioning holes arranged in sequence, and the fixing frame also has positioning holes. A fixing bracket is installed on one side of the fixing bracket, and the fixing bracket has an opening. A limit rod is slidably installed through the opening, and a sleeve is installed on one side of the fixing bracket. The sleeve has a guide hole, and one end of the limit rod can slide through the guide hole. A pull ring is provided at the end of the limit rod, and a fixing ring is installed at one end of the limit rod. A second spring is installed on one side of the fixing ring, and the other end of the second spring is fixed to the sleeve. A protective cover is installed on the top of the adjusting frame, and the size of the protective cover is consistent with the size of the blade.

[0011] As a further solution of the present invention: several groups of mounting brackets are symmetrically installed on the outer walls on both sides of the storage bin, an electric push rod is installed on the top of the mounting bracket, the telescopic end of the bottom of the electric push rod can slide through the mounting bracket, and a universal wheel is installed at the bottom of the electric push rod.

[0012] As a further solution of the present invention: the protective cover is provided with ventilation holes, and the ventilation holes are arranged in a circular shape and provided in a plurality of groups.

[0013] As a further solution of the present invention: an air bag is installed at the bottom of the closed bottom plate, and an air pump is connected to one side of the air bag.

[0014] As a further solution of the present invention: a fireproof ceramic fiber layer is provided on the outside of the shell of the drone body, and the fireproof ceramic fiber layer uniformly wraps the shell of the drone body.

[0015] As a further solution of the present invention: the material of the blade is carbon fiber composite material, and the blade is integrally formed.

[0016] The beneficial effects of the present invention are:

[0017] 1. By setting up the transport component, various required materials can be conveniently loaded into the storage bin. At the same time, the limit card block can be driven to fix the storage bin to complete the rapid loading of materials. At the same time, the materials can also be delivered quickly and conveniently, solving the problem that traditional fire-fighting drones cannot quickly load and deliver materials when in use, avoiding cumbersome steps, greatly increasing the efficiency of material transportation, and also improving the efficiency of material receiving at the fire base station to prevent the occurrence of emergency situations with insufficient materials.

[0018] 2. The arc-shaped design of the drone's main shell can smooth airflow separation and reduce turbulent resistance during flight. Compared with the right-angle design, it can improve energy efficiency by about 8%-12%. The rounded shell edge can weaken the impact of lateral wind disturbances and reduce the fluctuation amplitude of roll angle by more than 15%. At the same time, the arc edge can reduce the stress peak caused by external force impact by 40%-60%, avoiding the risk of shell cracking caused by stress concentration at right angles, greatly increasing flight stability.

[0019] 3. In the case that it is impossible to land to complete the delivery of materials, the closed bottom plate can be controlled to open by the second rotating motor. By opening the closed bottom plate, the materials in the storage bin can be quickly delivered, which can further increase the convenience and efficiency of material delivery. At the same time, fire extinguishing bombs can be loaded into the storage bin. After the main body of the drone is controlled to fly above the fire point, the closed bottom plate can be controlled to open to deliver fire extinguishing bombs to the fire point for extinguishing the fire, which greatly increases the efficiency of fire fighting. When loading materials or fire extinguishing bombs, the closed bottom plate is closed to seal the storage bin to avoid leakage.

[0020] 4. When the limit block moves and snaps into the limit slot to secure the storage bin, the fixing hole and the electric telescopic rod are aligned. By activating the electric telescopic rod and controlling its telescopic end to extend and snap into the fixing hole, the limit block is fixed in place, preventing the limit block from loosening during flight and causing the storage bin to fall. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural diagram of the main perspective of a fire-fighting drone with good stability proposed by the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the mobile part of a fire-fighting drone with good stability proposed by the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the protective part of a fire-fighting drone with good stability proposed by the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of a fire-fighting drone with good stability proposed by the present invention when viewed from above;

[0025] Figure 5 This is a schematic diagram of the structure of the fixed part of a fire-fighting drone with good stability proposed by the present invention;

[0026] Figure 6 This is a schematic structural diagram of the limiting part of a fire-fighting drone with good stability proposed by the present invention;

[0027] Figure 7 This is a structural diagram of the positioning part of a fire-fighting drone with good stability proposed by the present invention;

[0028] Figure 8 This is a schematic diagram of the structure of a fire-fighting drone with good stability proposed by the present invention, viewed from above.

[0029] In the figure: 1. UAV body; 2. Blade; 3. Protective cover; 4. Adjustment frame; 5. Sleeve; 6. Pull ring; 7. Fixed bracket; 8. Fixed bracket; 9. Storage compartment; 10. Slider; 11. Connecting bracket; 12. First rotating motor; 13. First rotating axis; 14. Limit block; 15. Electric telescopic rod; 16. Mounting frame; 17. Support frame; 18. Pull rod; 19. Universal wheel; 20. Mounting bracket; 21. Electric push rod; 22. Handle; 23. Slide rail; 24. Limit rod; 25. First mounting seat; 26. Limit block; 27. Second rotating motor; 28. Closed bottom plate; 29. ​​Limit groove; 30. Airbag; 31. Air pump; 32. Second rotating axis; 33. Second mounting seat; 34. Connecting block; 35. First spring; 36. Third mounting seat; 37. Second spring; 38. Fixing ring; 39. Fixing hole. DETAILED DESCRIPTION

[0030] The technical solution of the present invention will be further described in detail below in conjunction with specific implementation methods.

[0031] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0032] Example 1

[0033] A firefighting drone with good stability, such as Figure 1-8As shown, it includes a transport component, which includes a drone body 1. The output end at the top of the drone body 1 is connected to a transmission shaft, and a blade 2 is installed through the transmission shaft. The corners of the shell of the drone body 1 are designed to be arc-shaped. A slide rail 23 is installed at the bottom of the drone body 1. The slide rail 23 is provided with several groups. A slider 10 is slidably installed through the slide rail 23. A storage bin 9 is installed at the bottom of the slider 10. The storage bin 9 has limited slots 29 symmetrically provided on both sides. A support frame 17 is installed at the bottom of the drone body 1. A first spring 35 is installed on one side of the support frame 17. The first spring 35 is arranged in sequence in several groups. The bottom of the drone body 1 A first mounting seat 25 is installed, and a limit block 26 is rotatably installed through the first mounting seat 25. The position and size of the limit block 26 are adapted to the limit slot 29. One end of the first spring 35 is fixed to the limit block 26. A third mounting seat 36 is installed on one side of the limit block 26. A connecting block 34 is rotatably installed through the third mounting seat 36. A pull rod 18 is installed on one side of the connecting block 34. An opening is provided on one side of the support frame 17. One end of the pull rod 18 passes through the opening of the support frame 17. A handle 22 is installed at the end of the pull rod 18. A delivery component for delivering materials and a limit component for fixing the position of the limit block 26 are provided on one side of the storage bin 9.

[0034] When in use, the drone body 1 drives the blades 2 to rotate and the driving device can fly, and the materials to be transported can be loaded into the storage bin 9. After loading is completed, the slider 10 is slidably installed on the slide rail 23. After installation, the position of the limit groove 29 is adapted to the limit card block 26, and under the influence of the elastic force of the first spring 35, one end of the limit card block 26 can be controlled to be clamped in the limit groove 29 to limit and fix the storage bin 9, and the installation of the storage bin 9 can be completed quickly. After installation, the drone body 1 drives the storage bin 9 to fly together and can be quickly moved to a fire base station or a temporary base for the delivery of materials. After arriving at the designated position, the handle 22 is pulled, and the limit card block 26 can be pulled by the movement of the pull rod 18 to overcome the elastic force of the first spring 35 and move it out of the limit groove 29 to release the fixation of the storage bin 9. After completion, the storage bin 9 is pulled to slide the slider 10 can be quickly disassembled from the slide rail 23 to complete the disassembly of the storage bin 9 and complete the delivery of fire-fighting materials, which solves the problem that traditional fire-fighting drones cannot quickly load and deliver materials when in use, avoids cumbersome steps, greatly increases the efficiency of material transportation, and also improves the efficiency of material receiving at the fire base station, preventing the situation of insufficient materials in emergency situations. The arc-shaped design of the drone body 1 shell separates the airflow smoothly, reduces the turbulent resistance during flight, especially in the high-speed cruising stage, and can improve the energy efficiency by about 8%-12% compared with the right-angle design. The rounded shell edge can weaken the influence of lateral wind disturbances and reduce the fluctuation amplitude of the roll angle by more than 15%. At the same time, the arc edge can reduce the stress peak caused by external force impact by 40%-60%, avoiding the risk of shell cracking caused by stress concentration at the right angle, and greatly increasing the stability of flight.

[0035] The delivery assembly includes a second mounting base 33, which is provided with two groups and symmetrically mounted on the outer walls of the storage bin 9 on both sides. A second rotary motor 27 is mounted on one side of the second mounting base 33, and an output end of one side of the second rotary motor 27 is connected to a second rotary shaft 32. One end of the second rotary shaft 32 is rotatably arranged to pass through the second mounting base 33, and a closed bottom plate 28 is mounted on the second rotary shaft 32.

[0036] When in use, the second rotating shaft 32 and the closed bottom plate 28 can be controlled to rotate by the second rotating motor 27. The bottom of the storage bin 9 can be closed by rotating the closed bottom plate 28. In the case that it is impossible to land and complete the delivery of materials, the closed bottom plate 28 can be controlled to open by the second rotating motor 27. By opening the closed bottom plate 28, the materials in the storage bin 9 can be quickly delivered, which can further increase the convenience and efficiency of the delivery of materials. At the same time, fire extinguishing bombs can be loaded into the storage bin 9. After the drone body 1 is controlled to fly above the fire point, the closed bottom plate 28 can be controlled to open to deliver fire extinguishing bombs to the fire point for extinguishing the fire, which greatly increases the efficiency of fire fighting. When loading materials or fire extinguishing bombs, the closed bottom plate 28 is closed to seal the storage bin 9 to avoid leakage.

[0037] The limiting assembly includes a mounting bracket 16, which is provided with several groups and is respectively installed on the outer walls of both sides of the storage bin 9. An electric telescopic rod 15 is installed on one side of the mounting bracket 16. The telescopic end of one side of the electric telescopic rod 15 can slide through the mounting bracket 16. Fixing holes 39 are symmetrically opened on both sides of the limiting block 26. The position and size of the telescopic end of the electric telescopic rod 15 are adapted to the fixing holes 39.

[0038] During use, the mounting bracket 16 is provided with multiple groups, which are located on both sides of the limit block 26. When the limit block 26 moves and snaps into the limit groove 29 to fix the storage bin 9, the fixing hole 39 and the electric telescopic rod 15 are aligned. By starting and controlling the electric telescopic rod 15 to extend its telescopic end and snap into the fixing hole 39, the limit block 26 can be fixed in place, thereby preventing the limit block 26 from loosening during flight and causing the storage bin 9 to fall.

[0039] In order to limit the position of the closed bottom plate 28, as shown in FIG. Figure 1 、 3 As shown, a group of connecting brackets 11 are symmetrically installed on the outer walls of both sides of the storage bin 9, a first rotating motor 12 is installed at the bottom of the connecting bracket 11, the output end of the bottom of the first rotating motor 12 is connected to a first rotating shaft 13, and a limit block 14 is installed at one end of the first rotating shaft 13;

[0040] When in use, the position and size of the limit block 14 are adapted to the closed bottom plate 28. After the closed bottom plate 28 is closed, the first rotary motor 12 can control the first rotary shaft 13 and the limit block 14 to rotate, and the limit block 14 can clamp the closed bottom plate 28 to limit and fix it, effectively restricting it and preventing the closed bottom plate 28 from accidentally opening during flight.

[0041] In order to protect the blade 2, Figure 1 、 5 As shown in Figure 7, several groups of fixing frames 8 are installed on the top of the drone body 1, and the adjusting frame 4 is slidably installed through the fixing frame 8. The adjusting frame 4 has several groups of positioning holes arranged in sequence. The fixing frame 8 also has positioning holes. A fixing bracket 7 is installed on one side of the fixing bracket 8. The fixing bracket 7 has an opening, and a limit rod 24 is slidably installed through the opening. A sleeve 5 is installed on one side of the fixing bracket 7. The sleeve 5 has a guide hole. One end of the limit rod 24 can slide through the guide hole. A pull ring 6 is provided at the end of the limit rod 24. A fixing ring 38 is installed at one end of the limit rod 24. A second spring 37 is installed on one side of the fixing ring 38. The other end of the second spring 37 is fixed to the sleeve 5. A protective cover 3 is installed on the top of the adjusting frame 4. The size of the protective cover 3 is the same as that of the blade 2.

[0042] When in use, the position and size of the limit rod 24 are adapted to the positioning hole of the fixing frame 8, and the adjusting frame 4 can be controlled to slide on the fixing frame 8 to adjust the height of the protective cover 3. By adjusting to a suitable height, the blade 2 can be covered to protect it. After adjusting to a suitable height, the positioning holes of the adjusting frame 4 and the fixing frame 8 are aligned. After alignment, the limit rod 24 is affected by the elastic force of the second spring 37 and inserted into the positioning hole for limit fixing to prevent the adjusting frame 4 from sliding unnecessarily. When adjustment is needed, the pull ring 6 is pulled so that the fixing ring 38 overcomes the elastic force of the second spring 37 and slides in the sleeve 5. When the limit rod 24 is removed from the positioning hole, the limit of the fixing frame 8 and the adjusting frame 4 is released for adjustment. When the adjustment is completed, the pull ring 6 is released and the limit rod 24 is reset to limit. By wrapping the blade 2 with the protective cover 3 to protect it, it can be avoided that the blade 2 is damaged due to collision during flight, thereby ensuring normal flight.

[0043] To facilitate movement during loading, such as Figure 3 As shown, the outer walls on both sides of the storage bin 9 are symmetrically mounted with a plurality of mounting brackets 20, the top of the mounting brackets 20 is mounted with an electric push rod 21, the telescopic end of the bottom of the electric push rod 21 can slide through the mounting bracket 20, and the bottom of the electric push rod 21 is mounted with a universal wheel 19;

[0044] When in use, the device can be pushed or pulled, and the universal wheel 19 can be rotated by contacting the ground to drive the device to move, which is convenient for quickly controlling the movement of the storage bin 9 when loading a large amount of materials, and for accelerating the connection speed between it and the drone body 1. The height of the universal wheel 19 can be adjusted by the electric push rod 21, so that it can be adjusted to different heights according to different road conditions to increase passability;

[0045] In order to avoid air obstruction, such as Figure 1 As shown, the protective cover 3 is provided with ventilation holes, and the ventilation holes are arranged in a circular shape and are provided in several groups;

[0046] When in use, the vent holes provided in the protective cover 3 allow air to pass through normally, avoiding air obstruction and affecting normal flight;

[0047] To protect yourself from falling, Figure 2 As shown, an air bag 30 is installed at the bottom of the closed bottom plate 28, and an air pump 31 is connected to one side of the air bag 30;

[0048] When in use, if an uncontrolled fall occurs during flight, the air pump 31 can be controlled to start inflating the airbag 30. The inflation of the airbag 30 can play a cushioning and protective role when falling, greatly reducing damage to the device;

[0049] In order to increase the heat resistance, such as Figure 1 As shown, a fireproof ceramic fiber layer is provided on the outside of the shell of the drone body 1, and the fireproof ceramic fiber layer evenly wraps the shell of the drone body 1;

[0050] When in use, the fireproof ceramic fiber layer wrapped around the outside of the drone body 1 can effectively increase the temperature resistance, and can increase the tolerable temperature to 800°C, making it easier for it to enter and exit the fire scene.

[0051] Example 2

[0052] To increase the stability during flight, refer to Figure 1 A firefighting drone with good stability. Compared with Example 1, this embodiment makes the following improvements: the blade 2 is made of carbon fiber composite material and is integrally formed;

[0053] When in use, Blade 2 is processed as an integrated molding process. Through prepreg laying and autoclave curing process, an overall structure without rivets / bolts is achieved, eliminating the risk of stress concentration at traditional connection points. The density of carbon fiber composite materials is only one-fifth of that of steel, and the strength is up to 9 times that of metal. It can reduce the weight of the wing by 30%-50%, improve flight efficiency and extend flight time. At the same time, it has high rigidity characteristics, which can effectively reduce deformation deviation during high-speed flight and maintain stability during flight.

[0054] The above is only a preferred specific embodiment of the present invention. Parts that do not require creative work such as circuit control and signal control transmission may refer to the existing technology, but the scope of protection of the present invention is not limited to this. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, can make equivalent replacements or changes based on the technical solution and inventive concept of the present invention, which should be covered by the scope of protection of the present invention.

Claims

1. A firefighting drone with good stability, comprising a transport component, characterized in that: The transport assembly comprises a drone body (1), an output end at the top of the drone body (1) is connected to a transmission shaft, a blade (2) is installed through the transmission shaft, the shell corners of the drone body (1) are designed in an arc shape, a slide rail (23) is installed at the bottom of the drone body (1), the slide rail (23) is provided with a plurality of groups, a slider (10) is slidably installed through the slide rail (23), a storage bin (9) is installed at the bottom of the slider (10), and a limiting slot (29) is symmetrically provided on both sides of the storage bin (9), a support frame (17) is installed at the bottom of the drone body (1), a first spring (35) is installed on one side of the support frame (17), and the first spring (35) is arranged in a plurality of groups in sequence, and a first support frame (35) is installed at the bottom of the drone body (1). A mounting seat (25) is rotatably mounted on a limiting block (26) through the first mounting seat (25), the position and size of the limiting block (26) are adapted to the limiting groove (29), one end of a first spring (35) is fixed to the limiting block (26), a third mounting seat (36) is mounted on one side of the limiting block (26), a connecting block (34) is rotatably mounted through the third mounting seat (36), a pull rod (18) is mounted on one side of the connecting block (34), an opening is provided on one side of the support frame (17), one end of the pull rod (18) passes through the opening of the support frame (17), a handle (22) is mounted on the end of the pull rod (18), and a delivery component for delivering materials and a limiting component for fixing the position of the limiting block (26) are provided on one side of the storage bin (9).

2. A firefighting drone with good stability according to claim 1, characterized in that: The delivery assembly includes a second mounting seat (33), wherein the second mounting seat (33) is provided with two groups and is symmetrically mounted on the outer walls of both sides of the storage bin (9). A second rotating motor (27) is mounted on one side of the second mounting seat (33), and an output end on one side of the second rotating motor (27) is connected to a second rotating shaft (32). One end of the second rotating shaft (32) is rotatably arranged to pass through the second mounting seat (33), and a closed bottom plate (28) is mounted on the second rotating shaft (32).

3. The firefighting drone with good stability according to claim 1, characterized in that: The position limiting assembly comprises a mounting frame (16), wherein the mounting frame (16) is provided with a plurality of groups, which are respectively installed on the outer walls of both sides of the storage bin (9), and an electric telescopic rod (15) is installed on one side of the mounting frame (16), and the telescopic end on one side of the electric telescopic rod (15) can slide through the mounting frame (16), and fixing holes (39) are symmetrically opened on both sides of the position limiting block (26), and the position and size of the telescopic end of the electric telescopic rod (15) are adapted to the fixing holes (39).

4. A firefighting drone with good stability according to claim 2, characterized in that: A set of connecting brackets (11) are symmetrically mounted on the outer walls of both sides of the storage bin (9); a first rotating motor (12) is mounted on the bottom of the connecting bracket (11); an output end at the bottom of the first rotating motor (12) is connected to a first rotating shaft (13); and a limiting block (14) is mounted on one end of the first rotating shaft (13).

5. The firefighting drone with good stability according to claim 1, characterized in that: The top of the drone body (1) is provided with a plurality of fixing frames (8), and an adjusting frame (4) is slidably installed through the fixing frames (8). The adjusting frame (4) is provided with a plurality of positioning holes arranged in sequence. The fixing frame (8) is also provided with a positioning hole. A fixing bracket (7) is installed on one side of the fixing bracket (8). The fixing bracket (7) is provided with an opening. A limiting rod (24) is slidably installed through the opening. A sleeve (5) is installed on one side of the fixing bracket (7). The sleeve (5) is provided with a guide hole. One end of the limiting rod (24) can slide through the guide hole. A pull ring (6) is provided at the end of the limiting rod (24). A fixing ring (38) is installed on one end of the limiting rod (24). A second spring (37) is installed on one side of the fixing ring (38). The other end of the second spring (37) is fixed to the sleeve (5). A protective cover (3) is installed on the top of the adjusting frame (4). The size of the protective cover (3) is consistent with that of the blade (2).

6. The firefighting drone with good stability according to claim 1, characterized in that: A plurality of mounting brackets (20) are symmetrically mounted on the outer walls of both sides of the storage bin (9), an electric push rod (21) is mounted on the top of the mounting bracket (20), a telescopic end at the bottom of the electric push rod (21) is slidable through the mounting bracket (20), and a universal wheel (19) is mounted on the bottom of the electric push rod (21).

7. The firefighting drone with good stability according to claim 5, characterized in that: The protective cover (3) is provided with ventilation holes, and the ventilation holes are arranged in a circular shape and provided in a plurality of groups.

8. The firefighting drone with good stability according to claim 2, characterized in that: An air bag (30) is installed at the bottom of the closed bottom plate (28), and an air pump (31) is connected to one side of the air bag (30).

9. The firefighting drone with good stability according to claim 1, characterized in that: A fireproof ceramic fiber layer is provided on the outside of the shell of the drone main body (1), and the fireproof ceramic fiber layer uniformly wraps the shell of the drone main body (1).

10. The firefighting drone with good stability according to claim 1, characterized in that: The material of the blade (2) is a carbon fiber composite material, and the blade (2) is integrally formed.

Images