Fire-fighting unmanned aerial vehicle loaded with fire extinguishing bomb

Abstract

The fire-fighting unmanned aerial vehicle comprises an unmanned aerial vehicle body, a bomb filling mechanism and a bomb dropping mechanism, the bomb filling mechanism is installed at the bottom of the unmanned aerial vehicle body and used for filling the fire-extinguishing bomb, and the bomb dropping mechanism is installed in the bomb filling mechanism and used for dropping the fire-extinguishing bomb. The bomb dropping mechanism is used for dropping the fire extinguishing bombs in the bomb filling mechanism; wherein the elastic filling mechanism comprises a columnar shell, and the columnar shell is installed at the bottom of the unmanned aerial vehicle body; the bomb filling mechanism comprises a columnar shell with at least four bomb filling holes in the bottom and is used for storing a fire extinguishing bomb body, the fire extinguishing bomb body is attracted and fixed to an electromagnet through a metal block and is prevented from falling off in flight, filling operation is simple and rapid, and after the unmanned aerial vehicle reaches a fire extinguishing position, a micro motor drives a disc to rotate, and the fire extinguishing bomb body is filled with fire extinguishing bomb. And the permanent magnet at the bottom of the disc triggers the magnetic inductive sensor to power off the corresponding electromagnet to release the fire extinguishing bomb body.

Description

Technical Field

[0001] The present invention relates to the technical field of fire-fighting drones, and specifically relates to a fire-fighting drone with a payload of fire extinguishing bombs. Background Technique

[0002] A fire-fighting drone is an unmanned aerial vehicle specially designed for fire-fighting and rescue. It can perform fire extinguishing, reconnaissance, and emergency rescue tasks in complex or dangerous environments. The drone equipment can be equipped with a high-definition camera or an infrared thermal imager to monitor the fire scene in real time, providing accurate fire source positioning and personnel search information. In addition, some models of fire-fighting drones also have functions such as dropping fire extinguishing bombs and spraying fire extinguishing agents, improving the fire extinguishing efficiency. Compared with traditional rescue methods, fire-fighting drones can quickly reach areas that are difficult to access, such as high-rise buildings and forest fires, effectively reducing casualties and improving the success rate of rescue.

[0003] However, among the existing fire-fighting drones with the function of dropping fire extinguishing bombs, the bomb-filling method is relatively cumbersome, and it is necessary to cooperate with special filling tools or professional technicians to fill the fire extinguishing bombs. As a result, in emergency fire-fighting tasks, the replenishment efficiency of fire extinguishing bombs is low, and the release time during the bomb-dropping process is difficult to accurately control, resulting in an unsatisfactory fire extinguishing effect and affecting the continuous operation ability of the drone. Summary of the Invention

[0004] The purpose of the present invention is to provide a fire-fighting drone with a payload of fire extinguishing bombs to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A fire-fighting drone with a payload of fire extinguishing bombs, including a drone main body, a bomb-filling mechanism, and a bomb-dropping mechanism. The bomb-filling mechanism is installed at the bottom of the drone main body, and the bomb-filling mechanism is used for filling fire extinguishing bombs. The bomb-dropping mechanism is installed inside the bomb-filling mechanism, and the bomb-dropping mechanism is used for dropping the fire extinguishing bombs in the bomb-filling mechanism;

[0006] Among them, the bomb-filling mechanism includes a cylindrical shell, the cylindrical shell is installed at the bottom of the drone main body, the bottom of the cylindrical shell is evenly distributed with no less than four bomb-filling holes at equal intervals in a circumferential direction. The inner wall of the bomb-filling hole is provided with a limiting block, the bottom of the limiting block is provided with a cylindrical groove, the inner wall of the top of the limiting block is embedded with an electromagnet, the inner wall of the cylindrical shell is fixedly connected with a partition plate, and the inner wall of the bomb-filling hole is symmetrically provided with four chutes.

[0007] Preferably, the bomb-dropping mechanism includes a micro motor, the micro motor is installed on the inner wall of the top of the cylindrical shell, the rotating shaft of the micro motor is fixedly connected with a disc, a permanent magnet is installed at the bottom of the disc, a magnetic isolation block is installed at the top of the electromagnet, and no less than four magnetic induction sensors are evenly distributed at equal intervals in a circumferential direction on the top of the partition plate.

[0008] Preferably, a microcontroller is installed on the inner wall of the top of the columnar housing, the magnetic induction sensor is signal-connected to the microcontroller, and the micro motor is electrically connected to the microcontroller.

[0009] Preferably, a ring plate is fixedly connected to the top of the UAV body, and an arc-shaped cover plate is connected to the outer wall of the ring plate through external threads.

[0010] Preferably, a fire extinguishing bomb body is arranged inside the columnar housing. A detonation unit is installed on the top of the fire extinguishing bomb body, and a double-layer petal-shaped shell is installed at the bottom of the fire extinguishing bomb body. An initiation controller is arranged on the detonation unit, a metal block is installed on the top of the initiation controller, and the initiation controller is electrically connected to the microcontroller.

[0011] Preferably, four tail fins are symmetrically arranged on the outer wall of the detonation unit, and the tail fins are slidably installed inside the chute.

[0012] Preferably, the disc is provided with weight-reducing holes.

[0013] Preferably, two buffer frames are symmetrically installed at the bottom of the UAV body, and feet are installed at the bottom of the buffer frames.

[0014] Preferably, a rod body is fixedly connected to the top of the UAV body, and one end of the top of the rod body abuts against the inner wall of the top of the arc-shaped cover plate.

[0015] Preferably, a flight control mechanism is installed on the UAV body. The flight control mechanism includes a wireless transceiver module installed on the top of the arc-shaped cover plate, an acceleration sensor and a gyroscope are respectively installed on the outer wall of the UAV body, and a GPS module is installed on the inner wall of the top of the columnar housing.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] First, the ammunition loading mechanism of the present invention includes a columnar housing with no less than four ammunition loading holes at the bottom for storing the fire extinguishing bomb body. The fire extinguishing bomb body is adsorbed and fixed on the electromagnet through a metal block to prevent it from falling off during flight, and the loading operation is simple and fast.

[0018] Second, when the UAV reaches the fire extinguishing position, the micro motor drives the disc to rotate. The permanent magnet block at the bottom of the disc triggers the magnetic induction sensor, causing the corresponding electromagnet to power off and release the fire extinguishing bomb body. When the disc continues to rotate, all the fire extinguishing bombs can be sequentially dropped, improving the fire extinguishing ability and operation efficiency of the fire-fighting UAV. Description of the Drawings

[0019] Figure 1Schematic structural diagram of the fire - fighting drone with the payload fire - extinguishing bomb of the present invention;

[0020] Figure 2 Another perspective structural diagram of the fire - fighting drone with the payload fire - extinguishing bomb of the present invention;

[0021] Figure 3 Schematic sectional structural diagram of the fire - fighting drone with the payload fire - extinguishing bomb of the present invention;

[0022] Figure 4 Schematic structural diagram of the fire - extinguishing bomb body, limit block and electromagnet in the fire - fighting drone with the payload fire - extinguishing bomb of the present invention;

[0023] Figure 5 Schematic structural diagram of the micro - motor and disc in the fire - fighting drone with the payload fire - extinguishing bomb of the present invention;

[0024] Figure 6 Schematic structural diagram of the annular plate and arc - shaped cover plate in the fire - fighting drone with the payload fire - extinguishing bomb of the present invention.

[0025] In the figure:

[0026] 1. Drone main body; 101. Arc - shaped cover plate; 102. Buffer frame; 103. Support leg; 104. Rod body; 105. Annular plate; 106. External thread;

[0027] 2. Ammunition - filling mechanism; 201. Columnar shell; 202. Ammunition - filling hole; 203. Electromagnet; 204. Magnetic isolation block; 205. Limit block; 206. Partition board; 207. Fire - extinguishing bomb body; 208. Metal block; 209. Slide groove; 210. Detonation unit; 211. Tail fin; 212. Double - layer petal - shaped shell; 213. Initiation controller;

[0028] 3. Bomb - dropping mechanism; 301. Micro - motor; 302. Disc; 303. Permanent magnet block; 304. Magnetic induction sensor; 305. Micro - controller; 306. Weight - reducing hole;

[0029] 4. Flight control mechanism; 401. Wireless transceiver module; 402. Gyroscope; 403. Acceleration sensor; 404. GPS module. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to Figures 1-3, an embodiment of the present invention provides a fire - fighting drone for payload fire - extinguishing bombs, including: a drone main body 1, a bomb - filling mechanism 2, and a bomb - dropping mechanism 3.

[0032] In this embodiment, as Figures 1-4 shown, the bomb - filling mechanism 2 is installed at the bottom of the drone main body 1. The bomb - filling mechanism 2 includes a columnar housing 201. The columnar housing 201 is installed at the bottom of the drone main body 1. At least four bomb - filling holes 202 are equidistantly distributed in a circular pattern at the bottom of the columnar housing 201. A limiting block 205 is installed on the inner wall of the bomb - filling hole 202. A columnar groove is provided at the bottom of the limiting block 205. An electromagnet 203 is embedded in the top inner wall of the limiting block 205. A partition 206 is fixedly connected to the inner wall of the columnar housing 201. Four chutes 209 are symmetrically provided on the inner wall of the bomb - filling hole 202.

[0033] Specifically, the principle of the bomb - filling mechanism 2: At least four bomb - filling holes 202 are provided at the bottom of the columnar housing 201 for storing the fire - extinguishing bomb body 207. The fire - extinguishing bomb body 207 inside the bomb - filling hole 202 fits against the inner wall of the columnar groove of the limiting block 205 to limit the installation position of the fire - extinguishing bomb body 207, and the electromagnet 203 is energized to adsorb and fix the metal block 208 on the fire - extinguishing bomb body 207 to fix the position of the fire - extinguishing bomb body 207.

[0034] The fuselage material of the drone main body 1 is selected as aluminum alloy material. The drone main body 1 made of this material has a high strength - to - weight ratio, can effectively reduce the overall weight of the drone, improve the endurance and flight efficiency. At the same time, aluminum alloy has high strength and rigidity, enhancing the durability.

[0035] Among them, referring to Figure 4 , the fire - extinguishing bomb body 207 is in a cylindrical shape as a whole. It is filled with detonating ammunition and fire - extinguishing materials. A detonating unit 210 for igniting the detonating ammunition is installed at the top of the fire - extinguishing bomb body 207. A detonation controller 213 is installed on the detonating unit 210. A double - layer petal - shaped shell 212 is installed at the bottom of the fire - extinguishing bomb body 207. When the detonation controller 213 controls the detonating unit 210 to ignite the detonating ammunition, the fire - extinguishing materials push the double - layer petal - shaped shell 212 to open under the action of high temperature and high pressure, so that the fire - extinguishing materials are ejected. The double - layer petal - shaped shell 212 plays a sealing role for the fire - extinguishing materials and is forced to open when the detonating ammunition is ignited. A metal block 208 is installed on the top of the detonation controller 213. The metal block 208 can be adsorbed by the electromagnet 203. Tail fins 211 are installed on the outer wall of the detonating unit 210. When the fire - extinguishing bomb body 207 is installed inside the bomb - filling hole 202, the tail fins 211 can slide along the chutes 209, facilitating the sliding and loading of the fire - extinguishing bomb body 207.

[0036] It should be noted that, referring to Figure 4, a magnetic isolation block 204 is installed on the top of the electromagnet 203, and the magnetic isolation block 204 can prevent the magnetism of the electromagnet 203 from affecting the magnetic induction sensor 304 upward.

[0037] In this embodiment, as Figures 1-5 shown, the bomb throwing mechanism 3 is installed inside the ammunition loading mechanism 2. The bomb throwing mechanism 3 includes a micro motor 301, and the micro motor 301 is a forward and reverse motor. The micro motor 301 is installed on the top inner wall of the columnar housing 201. The rotating shaft of the micro motor 301 is fixedly connected with a disc 302. A permanent magnet block 303 is installed at the bottom of the disc 302. At least four magnetic induction sensors 304 are evenly distributed in a circular pattern on the top of the partition plate 206.

[0038] Specifically, the principle of the bomb throwing mechanism 3: Start the micro motor 301 to drive the disc 302 on its rotating shaft to rotate. The permanent magnet block 303 installed at the bottom of the disc 302 moves accordingly. When the permanent magnet block 303 approaches the magnetic induction sensor 304, the magnetic induction sensor 304 detects the magnetic field change and sends a signal, causing the corresponding electromagnet 203 to power off. After the electromagnet 203 powers off, the fire extinguishing bomb body 207 originally adsorbed on the electromagnet 203 is released through the ammunition loading hole 202 under the action of gravity, completing the bomb throwing process.

[0039] Furthermore, a micro controller 305 is installed on the top inner wall of the columnar housing 201. The magnetic induction sensor 304 is signal connected to the micro controller 305, and the micro motor 301 is electrically connected to the micro controller 305. The micro controller 305 can receive the inductive signal of the magnetic induction sensor 304 and control the operating state of the micro motor 301.

[0040] As Figure 1 and Figure 6 shown, a ring plate 105 is fixedly connected to the top of the UAV body 1. The outer wall of the ring plate 105 is connected with an arc-shaped cover plate 101 through an external thread 106. A rod body 104 is fixedly connected to the top of the UAV body 1. One end of the top of the rod body 104 abuts against the top inner wall of the arc-shaped cover plate 101. The inside of the ring plate 105 can place the fire extinguishing bomb body 207 to be installed, and the arc-shaped cover plate 101 is connected by a thread to cover the ring plate 105 and the fire extinguishing bomb body 207, and plays a role in anti-collision protection. The rod body 104 can increase the anti-collision strength of the arc-shaped cover plate 101.

[0041] In order to reduce the overall weight of the disc 302, weight reduction holes 306 are provided on the disc 302.

[0042] As Figure 1 and Figure 2As shown in the figure, two buffer frames 102 are symmetrically installed at the bottom of the UAV body 1, and a support leg 103 is installed at the bottom of the buffer frame 102. When the UAV body 1 lands, the buffer frame 102 and the support leg 103 can be used to achieve a stable effect during landing.

[0043] In this embodiment, as Figure 1 and Figure 3 shown in the figure, a flight control mechanism 4 is installed on the UAV body 1. The flight control mechanism 4 includes a wireless transceiver module 401, which is installed on the top of the arc-shaped cover plate 101. An acceleration sensor 403 and a gyroscope 402 are respectively installed on the outer wall of the UAV body 1, and a GPS module 404 is installed on the inner wall of the top of the columnar housing 201.

[0044] Specifically, the principle of the flight control mechanism 4: The flight control mechanism 4 is used to control the flight state of the UAV and realize data transmission. Among them, the wireless transceiver module 401 is installed on the top of the arc-shaped cover plate 101 and is used to receive and send control instructions and flight data. The acceleration sensor 403 and the gyroscope 402 are respectively installed on the outer wall of the UAV body 1 to monitor the acceleration and angular velocity of the UAV in real time, so as to judge the flight attitude and provide attitude correction data. The GPS module 404 is responsible for obtaining positioning and navigation information to ensure that the UAV flies according to the set trajectory, so that the UAV body 1 can perform stable control and precise flight of the airframe through the flight control mechanism 4.

[0045] Summarize and sort out the working steps of this solution according to the above technical solution: When the present invention is used, there are no less than four ammunition filling holes 202 at the bottom of the columnar housing 201 in the ammunition filling mechanism 2 for storing the fire extinguishing bomb body 207. A detonation unit 210 for igniting and detonating the ammunition is installed at the top of the fire extinguishing bomb body 207, and a double-layer petal-shaped shell 212 is installed at the bottom. When the detonation unit 210 ignites and detonates the ammunition, the fire extinguishing material pushes the double-layer petal-shaped shell 212 to open under the action of high temperature and high pressure, so that the fire extinguishing material is ejected, and the double-layer petal-shaped shell 212 plays a sealing role on the fire extinguishing material.

[0046] In addition, a metal block 208 is installed on the top of the detonation controller 213. The fire extinguishing bomb body 207 inside the ammunition filling hole 202 can fit on the inner wall of the groove of the limiting block 205 to limit the installation position of the fire extinguishing bomb body 207, and the metal block 208 on the fire extinguishing bomb body 207 is adsorbed and fixed by the electromagnet 203 to fix the position of the fire extinguishing bomb body 207 to prevent it from falling off during flight, and the operation of filling the fire extinguishing bomb is simple and fast, and no professional personnel are required for filling.

[0047] When the UAV body 1 reaches the predetermined fire extinguishing position, the bomb dropping mechanism 3 starts the micro-motor 301 to drive the rotation of the disc 302 on its rotating shaft. The permanent magnet block 303 installed at the bottom of the disc 302 moves accordingly. When the permanent magnet block 303 approaches the magnetic induction sensor 304, the magnetic induction sensor 304 detects the magnetic field change and sends a signal, causing the corresponding electromagnet 203 to lose power. After the electromagnet 203 loses power, the fire extinguishing bomb body 207 originally adsorbed on the electromagnet 203 is released through the ammunition loading hole 202 under the action of gravity, completing the bomb dropping process. And as the disc 302 continues to rotate, the fire extinguishing bomb bodies 207 can be released sequentially. When all the fire extinguishing bomb bodies 207 are dropped, the task can be continued by reloading the fire extinguishing bombs, thereby improving the fire extinguishing ability and operation efficiency of the fire-fighting UAV.

[0048] In summary, the ammunition loading mechanism 2 of the present invention includes a columnar housing 201 with no less than four ammunition loading holes 202 at the bottom, which is used to store the fire extinguishing bomb bodies 207. The fire extinguishing bomb bodies 207 are adsorbed and fixed on the electromagnet 203 through metal blocks 208 to prevent them from falling off during flight, and the loading operation is simple and fast.

[0049] When the UAV reaches the fire extinguishing position, the micro-motor 301 drives the disc 302 to rotate. The permanent magnet block 303 at the bottom of the disc 302 triggers the magnetic induction sensor 304, causing the corresponding electromagnet 203 to lose power and release the fire extinguishing bomb body 207. When the disc 302 continues to rotate, all the fire extinguishing bombs can be dropped in sequence, improving the fire extinguishing ability and operation efficiency of the fire-fighting UAV.

[0050] Parts not involved in the present invention are the same as or can be implemented by the prior art. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A firefighting drone carrying fire extinguishing bombs, comprising a drone body (1), a bomb loading mechanism (2) and a bomb throwing mechanism (3), characterized in that: The bomb loading mechanism (2) is installed at the bottom of the drone body (1), and is used to load fire extinguishing bombs. The bomb throwing mechanism (3) is installed inside the bomb loading mechanism (2), and is used to throw the fire extinguishing bombs inside the bomb loading mechanism (2). The bullet-loading mechanism (2) comprises a columnar shell (201), the columnar shell (201) is installed at the bottom of the drone body (1), the bottom of the columnar shell (201) is provided with no less than four bullet-loading holes (202) equidistantly distributed around a circle, a limit block (205) is installed on the inner wall of the bullet-loading hole (202), a columnar groove is provided at the bottom of the limit block (205), an electromagnet (203) is embedded on the top inner wall of the limit block (205), a partition (206) is fixedly connected to the inner wall of the columnar shell (201), and four slide grooves (209) are symmetrically provided on the inner wall of the bullet-loading hole (202).

2. The firefighting drone carrying fire extinguishing bombs according to claim 1, characterized in that: The bomb launching mechanism (3) comprises a micro motor (301), the micro motor (301) is mounted on the top inner wall of the columnar housing (201), the rotating shaft of the micro motor (301) is fixedly connected to a disk (302), a permanent magnet block (303) is mounted on the bottom of the disk (302), a magnetic isolation block (204) is mounted on the top of the electromagnet (203), and no less than four magnetic induction sensors (304) are equidistantly distributed on the top of the partition (206) according to the circumference.

3. The firefighting drone carrying fire extinguishing bombs according to claim 2, characterized in that: A microcontroller (305) is installed on the top inner wall of the columnar housing (201), the magnetic induction sensor (304) is signal-connected to the microcontroller (305), and the micromotor (301) is electrically connected to the microcontroller (305).

4. The firefighting drone carrying fire extinguishing bombs according to claim 1, characterized in that: An annular plate (105) is fixedly connected to the top of the drone body (1), and an outer wall of the annular plate (105) is connected to an arc-shaped cover plate (101) via an external thread (106).

5. The firefighting drone carrying fire extinguishing bombs according to claim 3, characterized in that: A fire extinguishing bomb body (207) is arranged inside the columnar shell (201), a detonation unit (210) is installed on the top of the fire extinguishing bomb body (207), a double-layer petal-shaped shell (212) is installed on the bottom of the fire extinguishing bomb body (207), a detonation controller (213) is arranged on the detonation unit (210), a metal block (208) is installed on the top of the detonation controller (213), and the detonation controller (213) is electrically connected to the microcontroller (305).

6. The firefighting drone carrying fire extinguishing bombs according to claim 5, characterized in that: Four tail wings (211) are symmetrically arranged on the outer wall of the detonation unit (210), and the tail wings (211) are slidably mounted inside the sliding groove (209).

7. The firefighting drone carrying fire extinguishing bombs according to claim 2, characterized in that: The disc (302) is provided with a weight-reducing hole (306).

8. The firefighting drone carrying fire extinguishing bombs according to claim 1, characterized in that: Two buffer frames (102) are symmetrically mounted on the bottom of the drone body (1), and supporting feet (103) are mounted on the bottom of the buffer frames (102).

9. The firefighting drone carrying fire extinguishing bombs according to claim 4, characterized in that: A rod body (104) is fixedly connected to the top of the drone body (1), and one end of the top of the rod body (104) abuts against the top inner wall of the arc-shaped cover plate (101).

10. The firefighting drone carrying fire extinguishing bombs according to claim 9, characterized in that: A flight control mechanism (4) is installed on the drone body (1), and the flight control mechanism (4) comprises a wireless transceiver module (401). The wireless transceiver module (401) is installed on the top of the arc-shaped cover plate (101). An acceleration sensor (403) and a gyroscope (402) are installed on the outer wall of the drone body (1), and a GPS module (404) is installed on the top inner wall of the columnar shell (201).

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