Firefighting unmanned aerial vehicle for fire extinguishing bomb launching

Abstract

The utility model relates to fire -fighting unmanned plane technical field discloses a fire -fighting unmanned plane for fire bomb delivery, including unmanned plane body, the inside of unmanned plane body is provided with airframe, one end of airframe is provided with airfoil mechanism, the lower surface fixed connection of unmanned plane body has the bomb storage, the inside fixed connection of bomb storage has the fixed plate, the outer wall of fixed plate is provided with delivery assembly, the delivery assembly includes electric push rod, triangular connecting plate and pivot. In the utility model, through the linkage design of electric push rod, pivot, triangular connecting plate, pressing plate, extension spring and push plate, the orderly delivery and accurate control of fire bomb can be realized, the delivery deviation caused by external force interference is effectively avoided, and the subsequent fire bomb can be lifted and reset after bomb delivery through the reset of pressing plate, the coherence and reliability of continuous bomb delivery process are guaranteed, and the efficiency and accuracy of fire bomb delivery in fire fighting operation are significantly improved.

Description

Technical Field

[0001] This utility model relates to the field of fire-fighting drone technology, and in particular to a fire-fighting drone for dropping fire extinguishing bombs. Background Technology

[0002] In the field of firefighting, drones have become essential equipment for modern firefighting operations due to their rapid response and ability to penetrate dangerous areas. Especially in scenarios involving high-rise buildings and forest fires, firefighting drones equipped with fire extinguishing bomb delivery capabilities can achieve remote and precise fire suppression, effectively reducing casualties and property damage. However, existing firefighting drones face technical challenges in the delivery of fire extinguishing bombs, including insufficient accuracy and low reliability during continuous operation. Therefore, how to achieve orderly delivery and stable control of fire extinguishing bombs through mechanical structural innovation has become a key research direction for improving the practical effectiveness of firefighting drones.

[0003] Currently, most common fire-fighting drone fire extinguishing bomb delivery devices employ gravity-based delivery or simple mechanical triggering structures. Gravity-based delivery relies on the drone's tilt angle to control the bomb's descent, and its accuracy is easily affected by external factors such as the drone's flight attitude and wind speed. While some mechanical triggering structures achieve single-bomb delivery via motors or springs, they lack a coordinated control mechanism for multiple bombs, leading to issues like bomb jamming, dislocation, or trajectory deviation during continuous delivery. These traditional structures rely primarily on a single power source and lack a multi-component, collaborative closed-loop control system, making it difficult to ensure the stability and continuity of the delivery process in complex environments.

[0004] In existing fire extinguishing grenade delivery devices, when multiple extinguishing grenades need to be delivered consecutively, it is difficult to effectively avoid mutual interference between adjacent grenades. This can easily lead to situations where the preceding grenades do not completely detach before causing subsequent grenades to shift, resulting in a chaotic delivery sequence and individual grenades deviating from their preset trajectories. Furthermore, the lack of a dynamic support and reset mechanism for the grenades during their descent makes the remaining grenades unstable after delivery, further affecting the efficiency and accuracy of continuous delivery and failing to meet the practical needs of rapid response and precise strikes in firefighting operations. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a fire-fighting drone for dropping fire extinguishing bombs, aiming to improve the existing fire extinguishing bomb dropping devices. When multiple fire extinguishing bombs need to be dropped continuously, it is difficult to effectively avoid mutual interference between adjacent bombs. The lack of dynamic support and reset mechanism for the falling process of the bombs makes the position of the remaining bombs unstable after dropping, which further affects the efficiency and accuracy of continuous dropping and makes it difficult to meet the actual needs of rapid response and precise strike in fire-fighting operations.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a fire-fighting drone for dropping fire extinguishing bombs, comprising a drone body, an internal wing support frame, an internal wing mechanism at one end of the wing support frame, a bomb storage compartment fixedly connected to the lower surface of the drone body, a fixed plate fixedly connected to the internal part of the bomb storage compartment, and a dropping component provided on the outer wall of the fixed plate;

[0007] The delivery assembly includes an electric push rod, a triangular connecting plate, and a rotating shaft. One end of the electric push rod is rotatably connected to the top of the fixed plate. One side of the outer wall of the rotating shaft is fixedly connected to the output end of the electric push rod. One end of the triangular connecting plate is rotatably connected to the rotating shaft. A pressure plate is fixedly connected to the inner side of the triangular connecting plate. A push plate is slidably connected inside the pressure plate. A sliding rod and a telescopic spring are provided between the push plate and the pressure plate. A rotating shaft is rotatably connected inside the ammunition storage compartment. A torsion spring is sleeved on the outer wall of the rotating shaft. A support plate is fixedly connected to one side of the outer wall of the rotating shaft.

[0008] Furthermore, a body support is fixedly connected to the lower surface of the drone body, a connecting plate is fixedly connected to the bottom of the body support, a base is slidably connected to the outer wall of the connecting plate, shock-absorbing components are provided at both ends of the connecting plate, a telescopic rod is fixedly connected inside the connecting plate, and a buffer spring is sleeved on the outer wall of the telescopic rod.

[0009] Furthermore, the shock absorption assembly includes two connecting rods, one end of each connecting rod being rotatably connected to the inside of the connecting plate, one end of each connecting rod being rotatably connected to a piston plate, an oil tank being slidably connected to the outer wall of the piston plate, an oil chamber being formed in the middle of the oil tank, a cavity being formed on the outer side of the inside of the oil tank, and a micro-perforated plate being fixedly connected to the middle of the oil tank.

[0010] Furthermore, one end of the buffer spring is fixedly connected to the inside of the base, and the other end of the buffer spring is fixedly connected to the inside of the connecting plate.

[0011] Furthermore, one end of the telescopic spring is fixedly connected to the inner wall of the pressure plate, and the other end of the telescopic spring is fixedly connected to the inside of the push plate.

[0012] Furthermore, one end of the torsion spring is fixedly connected to the inside of the rotating shaft, and the other end of the torsion spring is fixedly connected to the inside of the ammunition storage compartment.

[0013] Furthermore, one end of the triangular connecting plate is rotatably connected to the bottom of the fixed plate, and the interior of the ammunition storage compartment is sloped.

[0014] Furthermore, the outer wall of the slide rod is slidably connected to the inside of the pressure plate, and the slide rod is used to guide the telescopic spring.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, through the linkage design of electric push rod, rotating shaft, triangular connecting plate, pressure plate, telescopic spring and push plate, the orderly release and precise control of fire extinguishing bombs can be realized. The inclined design inside the storage chamber can make the fire extinguishing bombs move automatically to the designated position. When the bomb is released, the triangular connecting plate rotates to open the bottom of the storage chamber. With the support and reset mechanism of the support plate and torsion spring, it can ensure that a single fire extinguishing bomb falls stably and avoid multiple bombs from dislodging at the same time. The dual pressure structure of the pressure plate and push plate, combined with the torsional action of the telescopic spring and torsion spring, can not only give the fire extinguishing bomb a downward moving impact force, so that it is released stably along the preset track and effectively avoids the release deviation caused by external interference, but also can drive the subsequent fire extinguishing bombs to move upward and reset after the bomb is released by the reset of the pressure plate, ensuring the continuity and reliability of the continuous bomb release process, and significantly improving the efficiency and accuracy of fire extinguishing bomb release in fire fighting operations.

[0017] 2. The shock absorption structure design of the drone during landing in this utility model can effectively improve the safety and service life of the equipment. After the base is in contact with the ground, the buffer spring is pressed down by the connecting plate to achieve initial shock absorption. At the same time, the connecting rod drives the piston plate to slide in the oil tank. The flow of oil through the micro-perforated plate between the oil chamber and the cavity forms a hydraulic buffer effect. When the buffer spring rebounds, the flow of oil can reduce the vibration impact force, avoiding the violent rebound oscillation that may be generated by traditional pure spring shock absorption. This can greatly reduce the risk of impact damage when the drone lands, ensure stable landing of the equipment under complex terrain conditions, and provide reliable protection for the repeated operation and long-term use of fire-fighting drones. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a fire-fighting drone for dropping fire extinguishing bombs, as proposed in this utility model.

[0019] Figure 2 This is a schematic diagram of the airframe structure of a fire-fighting drone for dropping fire extinguishing bombs, as proposed in this utility model.

[0020] Figure 3 This is a schematic diagram of the lower structure of the drone body of a fire-fighting drone for dropping fire extinguishing bombs, as proposed in this utility model.

[0021] Figure 4 This is a schematic diagram of the internal structure of the ammunition storage compartment of a fire-fighting drone for deploying fire extinguishing bombs, as proposed in this utility model.

[0022] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0023] Figure 6 This is a schematic diagram of the internal structure of the pressure plate of a fire-fighting drone for deploying fire extinguishing bombs, as proposed in this utility model.

[0024] Figure 7 This is a schematic diagram of the internal structure of the base of a fire-fighting drone for dropping fire extinguishing bombs, as proposed in this utility model.

[0025] Figure 8 This is a schematic diagram of the internal structure of the fuel tank of a fire-fighting drone for dropping fire extinguishing bombs, as proposed in this utility model.

[0026] Legend:

[0027] 1. UAV fuselage; 2. Wing support; 3. Wing mechanism; 4. Bomb magazine; 5. Fuselage support; 6. Fixing plate; 7. Rotating shaft; 8. Torsion spring; 9. Support plate; 10. Electric push rod; 11. Triangular connecting plate; 12. Rotating shaft; 13. Pressure plate; 14. Push plate; 15. Slide rod; 16. Telescopic spring; 17. Base; 18. Connecting plate; 19. Telescopic rod; 20. Buffer spring one; 21. Connecting rod; 22. Piston plate; 23. Oil chamber; 24. Micro-perforated plate; 25. Cavity; 26. Fuel tank. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Reference Figures 1-6 The present invention provides an embodiment of a fire-fighting drone for dropping fire extinguishing bombs, comprising a drone body 1, an internal wing support 2, and a wing mechanism 3 at one end of the wing support 2. The wing support 2 and the wing mechanism 3 constitute the drone's powertrain, which generates lift, thrust, and torque through a multi-rotor motor to achieve flight attitude control. A bomb storage compartment 4 is fixedly connected to the lower surface of the drone body 1 to store fire extinguishing bombs and provide a directional transport track. A fixed plate 6 is fixedly connected inside the bomb storage compartment 4. The fixed plate 6 serves as a support base for the bomb dropping mechanism, fixing the rotation fulcrum of the triangular connecting plate 11 to ensure the stability of mechanical movement. A dropping component is provided on the outer wall of the fixed plate 6.

[0030] The delivery assembly includes an electric push rod 10, a triangular connecting plate 11, and a rotating shaft 12. The rotating shaft 12 provides the rotation axis for the triangular connecting plate 11, and the gradual opening of the bottom opening of the ammunition storage compartment 4 is achieved by controlling the rotation angle. One end of the electric push rod 10 is rotatably connected to the top of the fixed plate 6. The electric push rod 10 serves as a power source, driving the triangular connecting plate 11 to rotate through linear extension and retraction, realizing the linkage of "push-open" of the ammunition. One side of the outer wall of the rotating shaft 12 is fixedly connected to the output end of the electric push rod 10. The triangular connecting plate 11... One end is rotatably connected to the rotating shaft 12. The triangular connecting plate 11 converts the linear motion of the push rod into the horizontal thrust of the pressure plate 13 and the opening and closing motion of the bottom of the ammunition storage compartment 4 through the lever principle, forming a closed-loop control with multiple components working together. The pressure plate 13 is fixedly connected to the inner side of the triangular connecting plate 11, and the push plate 14 is slidably connected inside the pressure plate 13. The push plate 14 provides a vertically downward thrust under the drive of the telescopic spring 16, forming an orthogonal force field with the pressure plate 13 to ensure that the projectile slides down stably along the preset track. The push plate 14 and the pressure plate 13 form a horizontal thrust. A sliding rod 15 and a telescopic spring 16 are arranged between plates 13. A rotating shaft 7 is rotatably connected inside the ammunition storage compartment 4. A torsion spring 8 is sleeved on the outer wall of the rotating shaft 7. The torsion spring 8 releases stored energy when the projectile is released, driving the support plate 9 to quickly reset and prepare for the next bombing. A support plate 9 is fixedly connected to one side of the outer wall of the rotating shaft 7. The support plate 9 is hinged to the bottom of the ammunition storage compartment 4 through the rotating shaft 7. During the bombing process, it receives the support force transfer of the triangular connecting plate 11, provides temporary support and guides the trajectory of the projectile. One end of the telescopic spring 16 is fixedly connected to the inner wall of the pressure plate 13, and the other end of the telescopic spring 16 is fixedly connected to the inside of the push plate 14. One end of the torsion spring 8 is fixedly connected to the inside of the rotating shaft 7, and the other end of the torsion spring 8 is fixedly connected to the inside of the ammunition storage compartment 4. One end of the triangular connecting plate 11 is rotatably connected to the bottom of the fixed plate 6. The inside of the ammunition storage compartment 4 is set at an angle. The outer wall of the sliding rod 15 is slidably connected to the inside of the pressure plate 13. The sliding rod 15 is used to guide the telescopic spring 16.

[0031] Specifically, the firefighting drone first achieves stable hovering through its internal flight system and the powertrain consisting of wing support 2 and wing mechanism 3. This part adopts a mature multi-rotor aerodynamic layout design, achieving three-dimensional spatial positioning through motor speed control, providing a stable platform for subsequent bombing operations. During the bombing preparation stage, the inclined missile ramp inside the bomb storage compartment 4 uses gravity to push the fire extinguishing bombs inside the compartment along a preset track to the deployment position near the fixed plate 6. At this time, the bottom of the fire extinguishing bomb contacts the upper surface of the support plate 9, and the support plate 9 provides initial support force through the hinge fulcrum formed by the rotating shaft 7. After the bombing command is triggered, the electric push rod 10 begins linear extension and retraction. Through the hinge point between the end of the push rod and the triangular connecting plate 11, it drives the rod to rotate clockwise around the fixed rotating shaft 12 on the fixed plate 6. During this process, the long side of the triangular connecting plate 11 pushes the pressure plate 13 to move towards the top surface of the fire extinguishing bomb, while the short side simultaneously unfolds outward, gradually opening the bombing opening at the bottom of the bomb storage compartment 4. When the triangular connecting plate 11 rotates to the critical angle, its supporting force on the fire extinguishing bomb is completely transferred to the support plate 9. At this time, the torsion spring 8 is in the initial compression state, and provides the support plate 9 with a counterclockwise reset torque through the rotating shaft 7. As the triangular connecting plate 11 continues to rotate, the pressure plate 13 applies a horizontal thrust to the fire extinguishing bomb through the rubber buffer layer. At the same time, the telescopic spring 16 drives the push plate 14 to generate a vertical downward thrust. Under the action of the dual forces, the fire extinguishing bomb overcomes the surface friction of the support plate 9 and begins to slide downward, pushing the support plate 9 to rotate clockwise around the rotating shaft 7, compressing the torsion spring 8 to the limit position. When the fire extinguishing bomb disengages from the support plate 9, the torsion spring 8 releases its stored energy to drive the support plate 9 to quickly reset. At the same time, the telescopic spring 16 rebounds and pushes the push plate 14 to apply a pre-tightening force to the next fire extinguishing bomb to prevent it from sliding forward due to inertia. Throughout the process, the pressure plate 13 cooperates with the inner wall of the ammunition storage compartment 4 through the limiting boss to form a double anti-displacement structure to ensure the stability of the queue during continuous bombing.

[0032] Reference Figure 1 , Figure 7 and Figure 8A body support 5 is fixedly connected to the lower surface of the drone body 1. A connecting plate 18 is fixedly connected to the bottom of the body support 5, transferring the weight of the drone body to a buffer spring 20. A base 17 is slidably connected to the outer wall of the connecting plate 18. The base 17 absorbs the initial impact of landing through an elastic rubber pad, reducing rigid collision damage. Shock-absorbing components are provided at both ends of the connecting plate 18. A telescopic rod 19 is fixedly connected inside the connecting plate 18. A buffer spring 20 is sleeved on the outer wall of the telescopic rod 19. The buffer spring 20 absorbs impact energy through elastic deformation. The shock-absorbing components include two connecting rods 21. The connecting rods 21 convert the vertical movement of the connecting plate 18 into the horizontal movement of the piston plate 22. One end of the connecting rod 21 is rotatably connected to the inside of the connecting plate 18. One end of the connecting rod 21 is rotatably connected to the piston plate 22. The outer wall of the piston plate 22 is slidably connected to the oil tank 26. The oil tank 26 contains damping fluid and is divided into an oil chamber 23 and a cavity 25 to form a hydraulic buffer circuit. The oil chamber 23 is opened in the middle of the oil tank 26, and the cavity 25 is opened on the outer side of the inside of the oil tank 26. A micro-perforated plate 24 is fixedly connected to the middle of the oil tank 26. The micro-perforated plate 24 allows the damping fluid to flow between the two cavities, generating viscous resistance and converting kinetic energy into heat energy. One end of the buffer spring 20 is fixedly connected to the inside of the base 17, and the other end of the buffer spring 20 is fixedly connected to the inside of the connecting plate 18.

[0033] Specifically, when the UAV lands after completing its mission, the elastic rubber pad of the base 17 first contacts the ground, absorbing the initial impact energy through deformation. Then, the weight of the fuselage is transmitted through the connecting plate 18 to the buffer spring 20, causing it to compress and deform, achieving primary mechanical buffering. Simultaneously, as the connecting plate 18 moves downwards, the connecting rod 21 hinged to its side drives the piston plate 22 to reciprocate linearly within the oil chamber 23 of the oil tank 26. Twelve guide holes are evenly distributed on the surface of the piston plate 22, forming a hydraulic damping channel in conjunction with the micro-perforated plate 24. When the piston plate 22 presses down, the damping fluid in the oil chamber 23 flows through the micro-perforated plate 24 to... The flow in cavity 25 generates viscous resistance, converting kinetic energy into heat energy. When the buffer spring 20 reaches its maximum compression, the fuselage speed drops to near zero. During the spring rebound phase, connecting rod 21 drives piston plate 22 to move in the opposite direction. The damping fluid flows back to oil chamber 23 through microporous plate 24, forming a reverse damping force to suppress the secondary impact generated by the spring rebound. Throughout the buffering process, the guide column between connecting plate 18 and base 17, in conjunction with linear bearings, ensures vertical movement accuracy and avoids structural damage caused by lateral offset. This can control the landing impact acceleration of the UAV within a certain range, meeting the requirements for repeated take-off and landing in complex terrain.

[0034] Working Principle: When a fire-fighting drone is needed for dropping fire extinguishing bombs, the drone first uses its internal flight system in conjunction with wing brackets 2 and wing mechanism 3 to provide power and hovering capability. This is a mature existing technology and will not be elaborated further. Next, the fire extinguishing bombs inside the ammunition storage compartment 4 are moved to the end of the compartment 4 near the fixed plate 6 via the inclined surface inside the compartment. When dropping the bombs, the electric push rod 10 is activated, cooperating with the rotating shaft 12 to move one end of the triangular connecting plate 11. This causes the triangular connecting plate 11 to rotate around the connection point between the triangular connecting plate 11 and the fixed plate 6. This, in turn, moves the pressure plate 13 towards the fire extinguishing bomb. Simultaneously, the side of the triangular connecting plate 11 away from the pressure plate 13 moves outwards, gradually opening the bottom of the ammunition storage compartment 4. When the triangular connecting plate 11 no longer supports the fire extinguishing bombs, the support plate 9 then... The fire extinguishing projectile is further supported, and the gradual rotation of the triangular connecting plate 11 drives the pressure plate 13 to apply pressure to the fire extinguishing projectile. The pressure plate 13 can also prevent the second fire extinguishing projectile from dislodging. At the same time, the extension spring 16 drives the push plate 14 to further apply pressure to the fire extinguishing projectile, causing the fire extinguishing projectile to move downward. Thus, the fire extinguishing projectile causes the support plate 9 to rotate around the rotating shaft 7 as the center. At the same time, the torsion spring 8 is torsion. At this time, the extension spring 16 and the torsion spring 8 generate torque. When the fire extinguishing projectile is separated from the support plate 9, the torsion spring 8 is no longer under force and rebounds, driving the support plate 9 to reset. At this time, the extension spring 16 is also no longer under force and rebounds, driving the push plate 14 to apply pressure to the fire extinguishing projectile, causing the fire extinguishing projectile to move and impact downward. This can effectively prevent the fire extinguishing projectile from deviating from the track due to external forces. When the electric push rod 10 drives the triangular connecting plate 11 to reset, the movement of the pressure plate 13 can drive the fire extinguishing projectile to move upward and reset.

[0035] Furthermore, when the drone falls, the base 17 first contacts the ground, and then the weight of the drone itself causes the connecting plate 18 to press down. The movement of the connecting plate 18 applies pressure to the buffer spring 20, causing it to contract. At the same time, the movement of the connecting plate 18 also moves one end of the connecting rod 21, which in turn causes the piston plate 22 to slide inside the oil tank 26. This allows the piston plate 22 to slide stably inside the oil tank 26, thus pressurizing the oil inside the oil chamber 23 and causing the oil to flow through the micro-perforated plate 24 into the cavity 25. When the buffer spring 20 rebounds, it pushes the connecting plate 18 upward, which in turn causes the piston plate 22 to move back to its original position via the connecting rod 21. During this process, the movement of the piston plate 22 causes the oil to flow back into the oil chamber 23 through the micro-perforated plate 24, thereby reducing the vibration generated when the buffer spring 20 rebounds and achieving shock absorption for the drone.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fire-fighting drone for delivering fire extinguishing bombs, comprising a drone body (1), characterized in that: The UAV body (1) is provided with an internal wing support (2), and an internal wing mechanism (3) is provided at one end of the wing support (2). The lower surface of the UAV body (1) is fixedly connected to a bomb storage compartment (4), and a fixed plate (6) is fixedly connected inside the bomb storage compartment (4). The outer wall of the fixed plate (6) is provided with a delivery component. The delivery assembly includes an electric push rod (10), a triangular connecting plate (11), and a rotating shaft (12). One end of the electric push rod (10) is rotatably connected to the top of the fixed plate (6). One side of the outer wall of the rotating shaft (12) is fixedly connected to the output end of the electric push rod (10). One end of the triangular connecting plate (11) is rotatably connected to the rotating shaft (12). A pressure plate (13) is fixedly connected to the inner side of the triangular connecting plate (11). A push plate (14) is slidably connected inside the pressure plate (13). A slide rod (15) and a telescopic spring (16) are provided between the push plate (14) and the pressure plate (13). A rotating shaft (7) is rotatably connected inside the ammunition storage compartment (4). A torsion spring (8) is sleeved on the outer wall of the rotating shaft (7). A support plate (9) is fixedly connected to one side of the outer wall of the rotating shaft (7).

2. A fire-fighting drone for delivering fire extinguishing bombs according to claim 1, characterized in that: The lower surface of the drone body (1) is fixedly connected to a body support (5). A connecting plate (18) is fixedly connected to the bottom of the body support (5). A base (17) is slidably connected to the outer wall of the connecting plate (18). Shock-absorbing components are provided at both ends of the connecting plate (18). A telescopic rod (19) is fixedly connected inside the connecting plate (18). A buffer spring (20) is sleeved on the outer wall of the telescopic rod (19).

3. A fire-fighting drone for delivering fire extinguishing bombs according to claim 2, characterized in that: The shock absorption assembly includes two connecting rods (21), one end of each connecting rod (21) is rotatably connected to the inside of the connecting plate (18), one end of each connecting rod (21) is rotatably connected to a piston plate (22), the outer wall of the piston plate (22) is slidably connected to an oil tank (26), an oil chamber (23) is opened in the middle of the oil tank (26), a cavity (25) is opened on the outer side of the inside of the oil tank (26), and a micro-perforated plate (24) is fixedly connected to the middle of the oil tank (26).

4. A fire-fighting drone for delivering fire extinguishing bombs according to claim 3, characterized in that: One end of the buffer spring (20) is fixedly connected to the inside of the base (17), and the other end of the buffer spring (20) is fixedly connected to the inside of the connecting plate (18).

5. A fire-fighting drone for delivering fire extinguishing bombs according to claim 1, characterized in that: One end of the telescopic spring (16) is fixedly connected to the inner wall of the pressure plate (13), and the other end of the telescopic spring (16) is fixedly connected to the inside of the push plate (14).

6. A fire-fighting drone for delivering fire extinguishing bombs according to claim 1, characterized in that: One end of the torsion spring (8) is fixedly connected to the inside of the rotating shaft (7), and the other end of the torsion spring (8) is fixedly connected to the inside of the ammunition storage compartment (4).

7. A fire-fighting drone for delivering fire extinguishing bombs according to claim 1, characterized in that: One end of the triangular connecting plate (11) is rotatably connected to the bottom of the fixed plate (6), and the interior of the ammunition storage compartment (4) is set with an inclined surface.

8. A fire-fighting drone for delivering fire extinguishing bombs according to claim 1, characterized in that: The outer wall of the slide rod (15) is slidably connected to the inside of the pressure plate (13), and the slide rod (15) is used to guide the telescopic spring (16).

Images