Fire rescue unmanned aerial vehicle

Abstract

This invention relates to the field of fire rescue technology, specifically to a fire rescue drone, comprising a drone body with a suspension module connected to its bottom. The suspension module includes a storage mechanism capable of holding fire extinguishing balls. A throwing compartment is connected to the bottom output end of the storage mechanism. A launching mechanism is located on the side of the throwing compartment away from the throwing port. The launching mechanism has a striking rod, one end of which extends into a perforation to form a material interception structure between the storage mechanism and the throwing compartment. The other end of the striking rod is connected to an elastic reset component and a drive mechanism. The drive mechanism includes a snail cam, and a side wing rod is provided on the side wall of the striking rod. The snail cam, when rotating, works in conjunction with the side wing rod to form an impact drive structure for the striking rod. A baffle capable of self-resetting and blocking the throwing port is provided on one side of the throwing port, and a pulling structure is provided between the baffle and the striking rod. This invention can adapt to complex fire environments, effectively and continuously throw fire extinguishing balls, and improve fire rescue efficiency.

Description

Technical Field

[0001] This invention relates to the field of fire rescue technology, and specifically to a drone for fire rescue. Background Technology

[0002] With the popularization of technology, drones have gradually come into the public eye. Industrial-grade drones are increasingly being applied in various fields, playing their role, especially in high-risk areas such as firefighting. The importance of using drones to replace some human labor in firefighting is self-evident. In China, many fire departments have successfully used drones for fire scene reconnaissance and monitoring, and for dropping rescue supplies, with very significant results.

[0003] When fires occur in high-rise buildings, factories, forests, or mountainous vegetation areas, the complex terrain and fire conditions often make it difficult for firefighters to reach the appropriate location in a timely manner. While fire extinguishing balls can be thrown a certain distance and break upon contact with the ground or after being burned by the fire, allowing the extinguishing agent inside to quickly cover the surrounding area and weaken the fire, there are still situations where fire extinguishing balls cannot be delivered accurately in the aforementioned scenarios. Most existing fire rescue drones are not effective at dropping fire extinguishing balls at fire scenes, their deployment methods are relatively limited, and they are often limited to single drops. This makes it impossible to continuously drop fire extinguishing balls based on the actual fire situation and the accuracy of the drop. Therefore, the current field of drone-based fire rescue still has significant shortcomings regarding the dropping of fire extinguishing balls. Summary of the Invention

[0004] This invention provides a fire-fighting and rescue drone that can adapt to complex fire environments, effectively and continuously drop fire extinguishing balls, and improve fire-fighting and rescue efficiency.

[0005] This invention is implemented as follows:

[0006] A fire-fighting and rescue drone includes a drone body with a suspension module connected to its bottom. The suspension module includes a storage mechanism capable of holding several fire extinguishing balls. A throwing chamber is connected to the bottom output end of the storage mechanism. The throwing chamber is an L-shaped tubular structure. The opening at the end of the horizontal section at the bottom of the throwing chamber is the throwing port. A perforation is provided on the side of the throwing chamber away from the throwing port. A launching mechanism is provided outside the perforation. The launching mechanism has a striking rod that can launch the fire extinguishing balls in the throwing chamber after displacement. One end of the striking rod extends into the perforation to form a material interception structure between the storage mechanism and the throwing chamber. The other end of the striking rod is connected to an elastic reset component and a drive mechanism. The drive mechanism includes a snail cam. A side wing rod is provided on the side wall of the striking rod. The side wing rod abuts against the outer peripheral end face of the snail cam. The snail cam can work with the side wing rod to form an impact drive structure for the striking rod when rotating. A baffle that can self-reset and block the throwing port is provided on one side of the throwing port. A traction structure is provided between the baffle and the striking rod. The traction structure causes the baffle to open synchronously when the striking rod hits the fire extinguishing ball.

[0007] Based on the above technical solution, the drone body is provided with a suspension base at the bottom, the storage mechanism body is provided with an upper bracket that is detachably connected to the suspension base at the top, the storage mechanism body is provided with a lower bracket at the bottom, and the upper bracket and the lower bracket form a storage container. The storage container has an inner cavity for accommodating fire extinguishing balls, and a cone hopper is provided at the bottom of the inner cavity. The bottom output end of the cone hopper is connected to the internal space of the throwing chamber below.

[0008] Based on the above technical solution, the throwing chamber, launching mechanism and driving mechanism are all connected to the bottom of the lower support.

[0009] Based on the above technical solution, the throwing port is defined to face forward, the launching mechanism is located on the rear side of the throwing chamber, the launching mechanism includes a base that is fixedly connected to the lower support, the base is provided with a track groove, the impact rod is movably connected in the track groove and can move linearly back and forth along the track groove, the driving structure can drive the impact rod to move backward and move forward periodically in a "jumping" manner, and the elastic reset component can drive the impact rod to move backward.

[0010] Based on the above technical solution, the outer end of the perforation is provided with an extension of the tube structure, and the front end of the impact rod passes through the inner hole of the extension to form a displacement orientation structure.

[0011] Based on the above technical solution, the launching structure is provided with two symmetrically distributed drive mechanisms on the left and right sides. The drive mechanism includes a drive box that is fixedly connected to the lower support. The drive box contains a motor and a power supply. The output end of the motor is connected to the snail cam transmission. The rotating shaft of the snail cam is horizontally pivotally connected between the drive box and the base.

[0012] Based on the above technical solution, the left and right side walls of the base are provided with guide grooves. The guide grooves are strip-shaped through-hole structures with the length direction parallel to the front and rear directions. Two symmetrical side wing rods are vertically arranged on the left and right side walls of the impact rod. The outer ends of the side wing rods extend to the outside of the base through guide holes. The bottom of the left and right side wing rods are connected to the connecting rods with a "U"-shaped structure. A protrusion is provided at the bottom of the base in front of the connecting rod. A first tension spring is provided between the front side wall of the connecting rod and the rear side wall of the protrusion. A second tension spring is provided between the side wing rod and the front drive box. The first tension spring and the second tension spring can provide forward driving force for the impact rod.

[0013] Based on the above technical solution, the bottom of the baffle is hinged to the bottom of the throwing port via a pivot. The pivot is equipped with a torsion spring that can drive the baffle to flip up and block the throwing port. The base is located below the track groove and is provided with a front-to-back pulling channel. A pull rope is connected to the front side wall of the baffle. The other end of the pull rope passes through the pulling channel from front to back and is connected and fixed to the rear side wall of the connecting rod.

[0014] Based on the above technical solution, the front side of the impact rod is provided with a groove that adapts to the outer contour of the fire extinguishing ball.

[0015] Based on the above technical solution, the inner wall of the throwing chamber near the throwing port is provided with spiral rifling.

[0016] Compared with the prior art, the present invention has at least the following advantages:

[0017] Based on the inherent flexibility and maneuverability of drones, which enable them to adapt to various complex fire scenarios such as high-rise buildings, factories, forests, and mountainous vegetation, this invention utilizes the rotational drive of a single snail cam to enable the ramming stick to periodically move forward in a "jumping" manner, continuously launching fire extinguishing balls and greatly improving fire extinguishing efficiency. It can also be deployed multiple times in a timely manner according to the actual fire situation to ensure the fire extinguishing effect.

[0018] In this invention, the suspension module and the main body of the drone adopt a detachable connection structure, which facilitates the maintenance, repair, and replacement of the suspension module in the future. At the same time, different types and capacities of storage mechanisms and other components can be flexibly selected and combined according to different fire scenarios and actual needs, so that the drone and suspension module have diversified mounting combination schemes, greatly improving the adaptability to various fire environments.

[0019] The present invention effectively improves the stability and force transmission efficiency of the fire extinguishing ball during the throwing process by the rifling inside the throwing chamber and the groove design on the front side of the impact bar that adapts to the outer contour of the fire extinguishing ball. This allows the fire extinguishing ball to be subjected to a forward positive overall force, reducing deviations during flight and thus significantly improving throwing accuracy. This ensures that the fire extinguishing ball can accurately hit the fire source and improve the fire extinguishing effect. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a fire rescue drone in one embodiment;

[0022] Figure 2 for Figure 1 A sectional view;

[0023] Figure 3 for Figure 1 Schematic diagram of the mid-suspension module;

[0024] Figure 4 for Figure 3 A sectional view;

[0025] Figure 5 for Figure 3 A schematic diagram of the bottom structure;

[0026] Figure 6 A schematic diagram showing the side wing rod positioned at the highest point of the snail cam.

[0027] Figure 7 A schematic diagram showing the side wing rod positioned at the lowest point of the snail cam.

[0028] Figure 8 This is a partial structural diagram of the baffle;

[0029] Figure 9 This is a partial schematic diagram of the mounting structure of the impact bar in another embodiment;

[0030] Figure 10 This is a schematic diagram of the rifling structure in another embodiment.

[0031] The diagram is labeled as follows: 100, UAV body; 110, suspension base; 200, storage mechanism; 210, upper support; 220, lower support; 230, inner cavity; 240, conical hopper; 300, throwing compartment; 310, throwing port; 320, perforation; 330, extension; 340, baffle; 341, lanyard loop; 342, wire guide groove; 350, pull rope; 360, rifling; 400, launch. Mechanism; 410, base; 411, track groove; 412, traction channel; 420, impact rod; 421, side wing rod; 422, connecting rod; 423, groove; 430, guide groove; 440, protrusion; 450, first tension spring; 460, second tension spring; 500, drive mechanism; 510, snail cam; 511, high position; 512, low position; 520, drive box; a, fire extinguishing ball. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0033] In the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0035] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0036] Fire extinguishing balls can be thrown over long distances. Upon contact with the ground or after being burned by a fire, they break apart, and the extinguishing agent inside quickly covers the surrounding area, thereby weakening the fire. Because the extinguishing agent diffuses radially, it is denser in the central area and sparser at the edges. In actual use, a large amount of extinguishing agent accumulates in the central area, resulting in an overdose of extinguishing agent there, while the extinguishing agent in the edge areas is insufficient to extinguish or effectively weaken the fire. This results in a smaller extinguishing range for the fire extinguishing ball and a significant decrease in the utilization rate and extinguishing capacity of the extinguishing agent. Fire extinguishing balls are existing technology. Their specific structure and working principle can be found in the patent CN202011216495.3, and will not be repeated here. Those skilled in the art can select and implement from existing technologies based on actual operational conditions.

[0037] Example 1: Combination Figure 1 As shown in the figure, this embodiment of a fire rescue drone mainly includes a drone body 100 and a suspension module. The suspension module includes a storage mechanism 200, a throwing compartment 300, a launching mechanism 400, and a drive mechanism 500. All parts work together to achieve the continuous throwing function of fire extinguishing ball a.

[0038] The main drone 100 serves as the platform for the entire system, employing a mature quadcopter or multi-rotor drone model available on the market, such as the DJI Matrice M300 RTK drone. This model boasts advantages such as high stability, strong payload capacity, and long flight time. Its maximum takeoff weight reaches 6.3 kg, its maximum horizontal flight speed is 23 m / s, and its maximum endurance is up to 55 minutes, meeting the flight performance requirements of fire rescue missions. The main drone 100 is equipped with a suspension base 110 at its bottom for connecting the suspension module, ensuring the stability and reliability of the suspension module during flight. The main drone can be equipped with appropriate models and functional modules according to actual needs, including but not limited to cameras, infrared sensors, and GPS positioning systems.

[0039] Combination Figure 2 and Figure 3 As shown, the storage mechanism 200 includes an upper support 210, which is detachably connected to the suspension base 110 by bolts. This detachable structure facilitates the maintenance, repair and replacement of the suspension module in the later stage. It also enables the suspension module to be flexibly selected and matched according to the actual fire fighting needs. For example, different capacity or type of storage mechanism 200 can be selected according to different fire scenarios, so that the drone and the suspension module have diversified mounting combination schemes and improve the adaptability to various fire environments.

[0040] The storage mechanism 200 has a lower support 220 at its bottom, and the upper support 210 and the lower support 220 are connected by sealing plates around the perimeter to form a storage container. Figure 4 As shown, the storage container has an inner cavity 230 for accommodating fire extinguishing balls a. A conical hopper 240 is located at the bottom of the inner cavity 230, and the bottom outlet of the conical hopper 240 communicates with the internal space of the throwing chamber 300 below. This design allows the fire extinguishing ball a to smoothly fall from the storage mechanism 200 into the throwing chamber 300 under the influence of gravity. In other embodiments, the storage container may have an opening and closing plate on its side wall, which eliminates the need to disassemble the suspension module and facilitates the loading of the fire extinguishing ball a.

[0041] The throwing compartment 300 is a tubular structure with an "L"-shaped longitudinal profile, welded to the bottom of the lower support 220.

[0042] The opening at the end of the bottom horizontal section of the throwing compartment 300 is the throwing port 310. Figure 4 The throwing port 310 is located on the bottom right side of the throwing chamber 300 and is used to throw the fire extinguishing ball a. The throwing chamber 300 is provided with a perforation 320 on the side away from the throwing port 310, and a launching mechanism 400 is provided on the outside of the perforation 320.

[0043] Define the throwing port 310 to face directly forward.

[0044] The outer end of the perforation 320 is provided with an extension 330 of the tube structure. The front end of the impact rod 420 passes through the inner hole of the extension 330 to form a displacement orientation structure. This structure helps to prevent the front end of the impact rod 420 from falling off the launch chamber 300 when it moves backward. At the same time, it helps to improve the directional stability of the front end of the impact rod 420 during high-speed forward and backward displacement, greatly reducing the probability of jamming and ensuring the smooth progress of the launch process.

[0045] Combination Figure 3 , 4 8. A self-resetting baffle 340 is provided on one side of the throwing port 310 to block the throwing port 310. The bottom of the baffle 340 is hinged to the bottom of the throwing port 310 via a pivot. A torsion spring (not shown in the figure) is provided at the hinge point of the pivot to drive the baffle 340 to flip up and block the throwing port 310. This hinge structure is prior art, and its specific structure and working principle will not be described in detail here. Those skilled in the art can select and implement it from the prior art according to the actual operation.

[0046] In its natural state, the baffle 340 flips upward under the action of the torsion spring, forming an interception structure at the throwing port 310 to prevent the fire extinguishing ball a inside the throwing port 310 from falling.

[0047] The launching mechanism 400 includes a base 410, which is a rectangular shell structure and is connected and fixed to the lower support 220 by welding. The base 410 has a track groove 411 inside, and a striker 420 is provided in the track groove 411, which can launch the fire extinguishing ball a in the throwing compartment 300 after displacement. The track groove 411 is adapted to the outer contour of the striker 420, and the striker 420 is movably connected in the track groove 411 and can make linear forward and backward displacement along the track groove 411.

[0048] Combination Figure 2 and Figure 4 As shown, the front end of the impact rod 420 (the right end of the impact rod 420 in the figure) extends into the perforation 320 to form a material interception structure between the storage mechanism 200 and the throwing chamber 300, preventing other fire extinguishing balls a from falling into the throwing chamber 300 prematurely during the throwing process and affecting normal throwing. Figure 2 As shown in the image.

[0049] The rear end of the impact rod 420 (the left end of the impact rod 420 in the figure) is connected to an elastic reset component and a drive mechanism 500.

[0050] Specifically, in combination Figure 5 As shown, the base 410 has guide grooves 430 on its left and right side walls. The guide grooves 430 are strip-shaped through holes with their length direction parallel to the front-back orientation. Two symmetrical side wing rods 421 are vertically arranged on the left and right side walls of the impact rod 420. The outer ends of the side wing rods 421 extend to the outside of the base 410 through guide holes. The bottom of the two side wing rods 421 are connected to a "U"-shaped connecting rod 422. A protrusion 440 is provided at the bottom of the base 410 in front of the connecting rod 422. The protrusion 440 is a vertically extending sheet structure. A first tension spring 450 is provided between the front side wall of the connecting rod 422 and the rear side wall of the protrusion 440. A second tension spring 460 is provided between the side wing rod 421 and the front drive box 520. The first tension spring 450 and the second tension spring 460 can provide forward driving force for the impact rod 420. The guide groove 430 not only further improves the displacement direction stability of the impact rod 420, but also serves as a connection structure between the tension spring and the impact rod 420, ensuring the stable operation of the entire drive system.

[0051] like Figure 4 As shown, the base 410 is located below the track groove 411 and has a front-to-back traction channel 412. A pull rope 350 is connected to the front side wall of the baffle 340. Figure 8As shown, a rope loop 341 is provided on the front side wall of the baffle 340. The front end of the pull rope 350 passes through the rope loop 341 from bottom to top and is connected to a limiting bead to ensure its assembly stability. A wire groove 342 is also provided on the bottom corner edge of the baffle 340 so that the pull rope 350 will not easily deviate from left to right when it moves back and forth, thereby improving the stability of the path when the pull rope 350 is pulled. The other end of the pull rope 350 passes through the pulling channel 412 from front to back and is connected and fixed to the rear side wall of the connecting rod 422. When the impact rod 420 moves backward, the connecting rod 422 moves backward accordingly. At this time, the first tension spring 450 is stretched, and the pull rope 350 on the side near the connecting rod 422 is not pulled. The pull rope 350 is in a relatively relaxed state. At this time, the baffle 340 can be flipped up and reset due to the influence of the torsion spring on its bottom pivot, forming an interception structure at the throwing port 310 to prevent the fire extinguishing ball a inside the throwing port 310 from falling. When the impact rod 420 moves forward, the connecting rod 422 moves forward accordingly, and the pull rope 350 near the connecting rod 422 is pulled. This causes the pull rope 350 on the side near the baffle 340 to be subjected to a backward pulling force, which causes the baffle 340 to be pulled out and flipped down. The throwing port 310 switches to the open state, and the fire extinguishing ball a can be launched smoothly.

[0052] like Figures 3 to 5 As shown, the drive mechanism 500 includes a snail cam 510, and a side wing rod 421 is provided on the side wall of the impact rod 420. The side wing rod 421 abuts against the outer peripheral end face of the snail cam 510, and engages... Figure 6 and Figure 7 As shown, the snail cam 510 rotates clockwise around its axis. Figure 6 The middle side wing rod 421 abuts against the high point 511 of the outer peripheral end face of the worm cam 510. As the worm cam 510 continues to rotate, as... Figure 7As shown, the side wing rod 421, originally abutting at the high point 511, will be affected by the tension of the tension spring and the difference in the outer circumferential contour of the snail cam 510, causing it to "fall" instantaneously from the high point 511 to the low point 512. This positional change is reflected in the horizontal front-back direction. During this process, the impact rod 420 will "jump" forward to perform an impact action. The next rotation cycle of the snail cam 510 will then occur, and the side wing rod 421, originally abutting at the low point 512, will "crawl" along the outer circumferential end face of the snail cam 510 to the high point 511, and then "fall" back to the low point 512, repeating the cycle. In fact, the snail cam 510 only performs rotational movement; the side wing rod 421 only drives the impact rod 420 to perform synchronous front-back displacement movement. The snail cam 510 can work with the side wing rod 421 to form the impact drive structure of the impact rod 420 during rotation. Specifically, the drive mechanism 500 has two symmetrically distributed drive boxes 520 on its left and right sides, which are connected and fixed to the lower bracket 220. Each drive box 520 houses a motor and power supply. The motor is a high-performance brushless DC motor, such as the 57BL55S-2300 model, with a rated power of 55W and a rated speed of 3000r / min, providing stable and powerful power output. The motor's output is connected to the snail cam 510 via a transmission structure such as gears. The rotating shaft of the snail cam 510 is horizontally pivotally connected between the drive box 520 and the base 410, and its position is flush with the horizontal position of the side wing rod 421. This ensures a reliable and stable transmission structure between the two, converting the rotational motion of the snail cam 510 into the forward and backward displacement of the striking rod 420.

[0053] Working principle: First, fire extinguishing balls a are loaded into the inner cavity 230 of the storage mechanism 200. Under the action of gravity, the fire extinguishing balls a are arranged sequentially above the cone hopper 240. After the UAV takes off and arrives at a suitable position at the fire scene, the drive mechanism 500 is activated. The motor of the drive mechanism 500 starts running, driving the snail cam 510 to rotate through the transmission gear. During the rotation cycle of the snail cam 510, the curve change of its outer circumference is used to coordinate with the side wing rod 421 to drive the impact rod 420 to move backward away from the fire extinguishing balls a in the delivery compartment 300. As the snail cam 510 continues to rotate, when its outer circumference reaches the drop position, it causes the impact rod 420 to move forward suddenly in a "jump" motion after moving backward. This action causes the impact rod 420 to move forward at high speed and strike the fire extinguishing ball a inside the throwing chamber 300. Simultaneously, the connecting rod 422 moves forward, pulling the pull rope 350 to cause the baffle 340 to flip downwards, opening the throwing port 310. Under the combined force of the impact of the impact rod 420 and its own weight, the fire extinguishing ball a is successfully launched from the throwing port 310 and flies towards the fire source. After the fire extinguishing ball a is launched, the impact rod 420 moves forward under the action of the elastic reset components (first tension spring 450 and second tension spring 460), returning to its initial position. At the same time, the baffle 340 flips upwards under the action of the torsion spring, re-blocking the throwing port 310 to prevent the next fire extinguishing ball a from falling prematurely. At this time, the next fire extinguishing ball a in the storage mechanism 200 falls into the throwing chamber 300 under gravity, awaiting the next launch. The continuous rotation of the snail cam 510 enables the continuous execution of the aforementioned cyclical drive mode, allowing the fire extinguishing ball A to be continuously thrown. Combined with the agility and maneuverability of the drone, it can quickly and accurately deliver the fire extinguishing ball A to the fire source in fire environments where firefighters cannot reach the scene in time, effectively weakening the fire and improving firefighting and rescue efficiency.

[0054] Example 2: Based on Example 1, as follows Figure 9 As shown in this embodiment, the front side of the impact rod 420 is provided with a groove 423 that is adapted to the outer contour of the fire extinguishing ball a. The groove 423 is a spherical groove structure, which helps to improve the stability of the force transmission at the front end of the impact rod 420 during impact, so that the fire extinguishing ball a is subjected to a forward positive overall force, thereby improving the throwing accuracy and ensuring that the fire extinguishing ball a can accurately hit the fire source.

[0055] In other embodiments, a rubber pad may be provided on the front side of the impact rod 420 in order to properly protect the outer shell structure of the fire extinguishing ball a.

[0056] Example 3: Based on Example 2, such as Figure 10As shown, in this embodiment, the inner wall of the throwing chamber 300 near the throwing port 310 is provided with a spiral rifling 360. By reasonably extending the length of the horizontal section at the bottom of the throwing chamber 300, the influence of the rifling 360 can be enhanced, and its "rifling principle" can be appropriately utilized to make the fire extinguishing ball a rotate during the throwing process, further improving the throwing stability and ensuring that the fire extinguishing ball a can accurately reach the target position.

[0057] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A type of unmanned aerial vehicle (UAV) for fire and rescue, characterized in that, The device includes a drone body (100), with a suspension module connected to the bottom of the drone body (100). The suspension module includes a storage mechanism (200) capable of holding a number of fire extinguishing balls (a). The bottom output end of the storage mechanism (200) is connected to a throwing chamber (300). The throwing chamber (300) is an "L"-shaped tubular structure. The opening at the end of the horizontal section at the bottom of the throwing chamber (300) is a throwing port (310). A perforation (320) is provided on the side of the throwing chamber (300) away from the throwing port (310). A launching mechanism (400) is provided on the outside of the perforation (320). The launching mechanism (400) has a striking rod (420) capable of launching the fire extinguishing balls (a) in the throwing chamber (300) after displacement. One end of the striking rod (420) extends into the perforation (320) to form a storage chamber. The material interception structure between the mechanism (200) and the throwing chamber (300) has an elastic reset component and a drive mechanism (500) connected to the other end of the impact rod (420). The drive mechanism (500) includes a snail cam (510). A side wing rod (421) is provided on the side wall of the impact rod (420). The side wing rod (421) abuts against the outer peripheral end face of the snail cam (510). The snail cam (510) can cooperate with the side wing rod (421) to form the impact drive structure of the impact rod (420) when rotating. A baffle (340) that can self-reset and block the throwing port (310) is provided on one side of the throwing port (310). A traction structure is provided between the baffle (340) and the impact rod (420). The traction structure makes the baffle (340) open synchronously when the impact rod (420) hits the fire extinguishing ball (a).

2. The unmanned aerial vehicle for fire rescue according to claim 1, characterized in that, The main body (100) of the drone is provided with a suspension base (110) at the bottom. The main body of the storage mechanism (200) is provided with an upper bracket (210) that is detachably connected to the suspension base (110) at the top. The main body of the storage mechanism (200) is provided with a lower bracket (220) at the bottom. The upper bracket (210) and the lower bracket (220) form a storage container. The storage container has an inner cavity (230) for accommodating fire extinguishing balls (a). The bottom of the inner cavity (230) is provided with a cone (240). The bottom output end of the cone (240) is connected to the internal space of the throwing chamber (300) below.

3. The unmanned aerial vehicle for fire rescue according to claim 2, characterized in that, The throwing chamber (300), launching mechanism (400) and driving mechanism (500) are all connected to the bottom of the lower support (220).

4. The unmanned aerial vehicle for fire rescue according to claim 2, characterized in that, The throwing port (310) is defined to face forward. The launching mechanism (400) is located on the rear side of the throwing chamber (300). The launching mechanism (400) includes a base (410) that is fixedly connected to the lower support (220). The base (410) has a track groove (411) inside. The impact rod (420) is movably connected in the track groove (411) and can move linearly back and forth along the track groove (411). The driving structure can drive the impact rod (420) to move backward and move forward in a periodic "jumping" manner. The elastic reset component can drive the impact rod (420) to move backward.

5. A fire-fighting and rescue drone according to claim 4, characterized in that, The outer end of the perforation (320) is provided with an extension (330) of the tube structure, and the front end of the impact rod (420) passes through the inner hole of the extension (330) to form a displacement orientation structure.

6. A fire-fighting and rescue drone according to claim 4, characterized in that, The launching structure is provided with two symmetrically distributed drive mechanisms (500) on the left and right sides. The drive mechanism (500) includes a drive box (520) that is fixedly connected to the lower bracket (220). The drive box (520) is provided with a motor and a power supply. The output end of the motor is connected to the snail cam (510) for transmission. The rotating shaft of the snail cam (510) is horizontally pivotally connected between the drive box (520) and the base (410).

7. A fire-fighting and rescue drone according to claim 6, characterized in that, The base (410) has guide grooves (430) on its left and right side walls. The guide grooves (430) are strip-shaped through holes with their length direction parallel to the front and back orientation. The impact rod (420) has two symmetrical side wing rods (421) vertically arranged on its left and right side walls. The outer ends of the side wing rods (421) extend to the outside of the base (410) through guide holes. The bottom of the two side wing rods (421) is connected to a "U"-shaped connecting rod (422). The bottom of the base (410) is provided with a protrusion (440) in front of the connecting rod (422). A first tension spring (450) is provided between the front side wall of the connecting rod (422) and the rear side wall of the protrusion (440). A second tension spring (460) is provided between the side wing rod (421) and the front drive box (520). The first tension spring (450) and the second tension spring (460) can provide forward driving force for the impact rod (420).

8. A fire-fighting and rescue drone according to claim 7, characterized in that, The bottom of the baffle (340) is hinged to the bottom of the throwing port (310) via a pivot. The pivot is provided with a torsion spring that can drive the baffle (340) to flip up and block the throwing port (310). The base (410) is located below the track groove (411) and has a front-to-back traction channel (412). A pull rope (350) is connected to the front side wall of the baffle (340). The other end of the pull rope (350) passes through the traction channel (412) from front to back and is then connected and fixed to the rear side wall of the connecting rod (422).

9. A fire-fighting and rescue drone according to claim 1, characterized in that, The front side of the impact bar (420) is provided with a groove (423) that is adapted to the outer contour of the fire extinguishing ball (a).

10. A fire-fighting and rescue drone according to claim 1, characterized in that, The inner wall of the throwing chamber (300) near the throwing port (310) is provided with spiral rifling (360).

Images