Fire-fighting unmanned aerial vehicle for throwing

Abstract

The application discloses a fire extinguishing unmanned aerial vehicle for throwing and launching, which comprises an unmanned aerial vehicle, throwing and launching clamping mechanisms, a pushing mechanism, a safety mechanism and a landing gear, two groups of symmetrical throwing and launching clamping mechanisms and a centrally arranged pushing mechanism are fixedly connected to the bottom of the unmanned aerial vehicle, the safety mechanism is assembled at the bottom of the throwing and launching clamping mechanism, the landing gear is assembled at the side of the unmanned aerial vehicle, the throwing and launching clamping mechanism clamps and fixes a fire extinguishing bomb, the safety mechanism is limited and matched with the fire extinguishing bomb, the pushing mechanism is transmissionally connected with the safety mechanism, and the unlocking driving of the safety mechanism is realized. The multistage connecting rod clamping structure composed of a folding main arm, a sub-arm and a clamping ring is arranged on the device, a control instrument driving connecting seat is slidingly connected on a main supporting rod, the stable clamping and quick releasing of the fire extinguishing bomb can be realized, the shaking and falling in the flight process are effectively avoided, and the transportation safety is improved.

Description

Technical Field

[0001] This invention relates to the field of firefighting drone equipment technology, specifically a firefighting drone for throwing and extinguishing fires. Background Technology

[0002] With the acceleration of urbanization, fire rescue in high-rise buildings and complex terrain areas is becoming increasingly difficult. Firefighting drones, due to their mobility and rapid response, are gradually becoming important equipment for assisting firefighting. Especially in the early stages of a fire or in dangerous areas that are difficult for personnel to reach, using drones to carry fire extinguishing bombs for precise delivery has become an effective means of handling the situation.

[0003] Existing fire-fighting drones typically use electromagnets or simple mechanical hooks to secure fire extinguishing bombs when performing drop missions. These structures are prone to accidental detachment of the fire extinguishing bombs due to vibration when the drone is flying at high speed or encountering strong air current disturbances, or they may fail to release smoothly due to mechanical jamming when drop is required. Furthermore, the single connection method lacks multiple safety guarantees and is difficult to adapt to complex fire scene environments.

[0004] The problem with existing technologies is that traditional drone throwing devices lack reliable mechanical self-locking and linkage unlocking mechanisms, resulting in insufficient load limiting stability during flight. Furthermore, they cannot achieve synchronous linkage between the opening and locking of the clamping components when performing the throwing action, which can easily lead to throwing failure or accidental throwing, affecting firefighting efficiency and flight safety. Summary of the Invention

[0005] The purpose of this invention is to provide a fire-fighting drone for throwing firefighting equipment in order to solve the problems mentioned above.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a fire-fighting drone for throwing and extinguishing fires, comprising: a drone, a throwing and clamping mechanism, a pushing mechanism, a safety mechanism, and landing gear. Two sets of symmetrically arranged throwing and clamping mechanisms and a centrally arranged pushing mechanism are fixedly connected to the bottom of the drone. A safety mechanism is mounted at the bottom of the throwing and clamping mechanism. The landing gear is mounted on the side of the drone. The throwing and clamping mechanism clamps and fixes a fire extinguishing bomb. The safety mechanism limits and cooperates with the fire extinguishing bomb. The pushing mechanism is connected to the safety mechanism to unlock and drive the safety mechanism.

[0007] Preferably, the throwing and clamping mechanism includes a connecting plate, the top of which is fixedly connected to the bottom of the drone, and the bottom of which is fixedly equipped with a controller and a vertically arranged main support rod.

[0008] Preferably, a connecting seat is slidably sleeved on the inner side of the main support rod, and folding main arms are symmetrically hinged on both sides of the connecting seat, with a secondary arm hinged at the bottom end of the folding main arm.

[0009] Preferably, the inner wall of the auxiliary arm is fixedly connected with a clamping ring, and the two clamping rings on both sides form an annular clamping space and tightly hold and limit the fire extinguishing bomb.

[0010] Preferably, the safety mechanism includes a safety compartment fixed to the center of the bottom of the main support rod, the bottom of the safety compartment having a vertical through hole, and a locking rod vertically inserted inside the through hole.

[0011] Preferably, the top end of the locking rod is inserted into the docking hole at the top of the safety compartment, the middle part of the locking rod body has a locking ring groove with an annular structure, and the bottom end of the locking rod is fixed to the fire extinguishing bomb as a whole.

[0012] Preferably, a semi-circular retaining wheel is rotatably connected inside the safety compartment, and the arc-shaped segment of the semi-circular retaining wheel engages and embeds into the locking ring groove to form an axial limiting structure.

[0013] Preferably, the shaft of the semi-circular retaining wheel extends vertically through the bottom of the safety compartment and outwards, and a transmission gear is fixedly connected to the extended end of the shaft.

[0014] Preferably, the pushing mechanism includes a connecting rod fixed at the center of the bottom of the drone, and a horizontally arranged bidirectional cylinder is fixedly connected to the bottom end of the connecting rod.

[0015] Preferably, both ends of the bidirectional cylinder are fixedly connected to horizontally arranged drive rods, and the outer ends of the drive rods are fixedly connected to push tooth plates, the tooth surfaces of the push tooth plates meshing with the transmission gears.

[0016] Compared with the prior art, the beneficial effects of the present invention are: This device uses a linkage mechanism consisting of a folding main arm, a secondary arm, and a clamping ring. The controller drives the connecting seat to slide on the main support rod, thereby causing the clamping ring to open and close. Compared with simple electromagnetic adsorption, this mechanical clamping structure can maintain physical locking even in the event of power failure or signal interference, thus improving safety during flight transportation.

[0017] By driving the pusher plate to move through the bidirectional cylinder in the mechanism, the transmission gear rotates, and finally the semi-circular retaining wheel rotates to release the locking lever. This achieves a two-stage unlocking of the throwing action, that is, first opening the clamping arm and then releasing the top lock. This effectively prevents the fire extinguishing bomb from falling accidentally before it is completely out of the clamping range, ensuring the accuracy of the throwing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a fire-fighting drone for throwing and extinguishing fires, as described in this invention. Figure 2 This is a frontal structural diagram of a fire-fighting drone for throwing and extinguishing fires, as described in this invention. Figure 3 This is a schematic diagram of the throwing mechanism in a fire-fighting drone for throwing fires, as described in this invention. Figure 4 This is a schematic diagram of the throwing and clamping mechanism in a fire-fighting drone for throwing fires, as described in this invention. Figure 5 This is a schematic diagram of the safety mechanism in a fire-fighting drone for throwing and extinguishing fires, as described in this invention. Figure 6 This is a schematic diagram of the propulsion mechanism in a fire-fighting drone for throwing and extinguishing fires, as described in this invention.

[0019] In the diagram: 1. Unmanned Aerial Vehicle (UAV); 2. Throwing and clamping mechanism; 3. Pushing mechanism; 4. Safety mechanism; 5. Landing gear; 21. Connecting plate; 22. Controller; 23. Main support rod; 24. Connecting seat; 25. Folding main arm; 26. Secondary arm; 27. Clamping ring; 28. Fire extinguishing bomb; 31. Connecting rod; 32. Two-way cylinder; 33. Drive rod; 34. Push tooth plate; 41. Safety compartment; 42. Through hole; 43. Locking rod; 44. Locking ring groove; 45. Semi-arc stop wheel; 46. Transmission gear. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The following describes embodiments of the invention based on its overall structure.

[0022] Reference Figures 1 to 6 In this embodiment of the invention, a fire-fighting drone for throwing and extinguishing fires includes: Embodiment 1: A fire-fighting drone for throwing and extinguishing fires includes a drone 1, a throwing and holding mechanism 2, a propulsion mechanism 3, a safety mechanism 4, and a landing gear 5. Two sets of symmetrically arranged throwing and holding mechanisms 2 and a centrally arranged propulsion mechanism 3 are fixedly connected to the bottom of the drone 1. The bottom of the throwing and holding mechanism 2 is equipped with a safety mechanism 4. The landing gear 5 is mounted on the side of the drone 1. The throwing and holding mechanism 2 holds and fixes a fire extinguishing bomb 28. The safety mechanism 4 limits and cooperates with the fire extinguishing bomb 28. The propulsion mechanism 3 is connected to the safety mechanism 4 to unlock and drive the safety mechanism 4. It is used for precise fire extinguishing scenarios such as fires on the exterior walls of high-rise buildings and fires with open windows. The two symmetrically arranged throwing and holding mechanisms can carry two fire extinguishing bombs at the same time, which is suitable for the needs of handling large-area fires in high-rise buildings.

[0023] The throwing and clamping mechanism 2 includes a connecting plate 21. The top of the connecting plate 21 is attached and fixed to the bottom surface of the UAV 1. The controller 22 and the vertically extending main support rod 23 are fixedly installed on the lower surface of the connecting plate 21. The connecting plate 21 adopts a high-strength rigid plate structure, which can stably support the weight of the clamping structure below and the fire extinguishing bomb 28. The controller 22 is an independent control component, which can independently control the opening and closing action of a single throwing and clamping mechanism 2, and is suitable for single-time throwing operations for local fires on one side of high-rise buildings.

[0024] The main support rod 23 has a vertical through-cavity, and the connecting seat 24 is slidably sleeved inside the cavity. The outer walls of the left and right sides of the connecting seat 24 are respectively hinged to the folding main arm 25. The lower end of each folding main arm 25 is hinged to the auxiliary arm 26. The connecting seat 24 can slide smoothly vertically along the main support rod 23. When working in the narrow space of a high-rise building, the upward sliding of the connecting seat 24 can drive the folding main arm 25 and auxiliary arm 26 to retract, reducing the space occupied by the overall structure.

[0025] The auxiliary arm 26 is fixedly connected to the inner side wall of the clamping ring 27. The two sets of clamping rings 27 on the left and right sides are aligned to form a complete annular cavity. The fire extinguishing bomb 28 is tightly clamped and limited inside the cavity. The annular enclosure structure can fit the outer wall of the fire extinguishing bomb 28 in all directions, and always maintains stable clamping of the fire extinguishing bomb 28 in the strong wind environment at high altitude of high-rise buildings.

[0026] The safety mechanism 4 is fixedly installed at the center of the bottom of the main support rod 23. The safety mechanism 4 includes a safety compartment 41. A vertical through hole 42 is opened on the bottom wall of the safety compartment 41. A locking rod 43 is vertically inserted inside the through hole 42. The safety compartment 41 is a closed cavity structure, which can prevent high-altitude wind and sand and debris from entering the interior and avoid the unlocking structure from being blocked by debris in high-rise buildings.

[0027] A docking hole is opened in the center of the top surface of the safety compartment 41. The upper end of the locking rod 43 is inserted into the docking hole to achieve center positioning. A ring-shaped locking groove 44 is opened around the middle of the locking rod 43. The lower end of the locking rod 43 is integrally connected to the fire extinguishing bomb 28. The center positioning structure can ensure that the vertical force of the locking rod 43 is uniform, and avoid deviation and jamming during high-altitude operations.

[0028] The inner cavity of the safety compartment 41 is equipped with a semi-circular stop wheel 45. The arc section of the semi-circular stop wheel 45 is embedded in the locking ring groove 44, which forms an axial blocking limit on the semi-circular stop wheel. During high-altitude flight, the locking rod 43 can be firmly locked to prevent the fire extinguishing bomb 28 from accidentally falling and injuring pedestrians on the ground.

[0029] A rotating shaft is inserted through the center of the semi-circular stop wheel 45. The rotating shaft extends vertically downward through the bottom of the safety compartment 41 and outward. A transmission gear 46 is fixedly installed at the lower end of the rotating shaft extending out of the safety compartment. The transmission gear 46 can rotate synchronously and precisely with the rotating shaft to ensure the stability of the unlocking action.

[0030] The propulsion mechanism 3 is located at the bottom center of the drone 1. The propulsion mechanism 3 includes a connecting rod 31. The upper end of the connecting rod 31 is fixedly connected to the bottom surface of the drone 1, and the lower end of the connecting rod 31 is horizontally fixed to the bidirectional cylinder 32. The connecting rod 31 is arranged vertically to bear the load and can stably support the working load of the bidirectional cylinder 32.

[0031] The front and rear ends of the bidirectional cylinder 32 are respectively fixedly connected to the horizontally arranged drive rods 33. The end of each drive rod 33 away from the cylinder is fixed with a pusher plate 34. The outer side of the pusher plate 34 is provided with meshing teeth. The teeth mesh with the teeth on the outer wall of the transmission gear 46. The synchronous extension and retraction of the bidirectional cylinder 32 can realize the synchronous unlocking and throwing of the fire extinguishing bombs 28 on both sides, which is suitable for the fire extinguishing needs of large-area fires in high-rise buildings. Example 2

[0032] A fire-fighting drone for throwing and extinguishing fires includes a drone 1, a throwing and clamping mechanism 2, a propulsion mechanism 3, a safety mechanism 4, and a landing gear 5. Two sets of symmetrically arranged throwing and clamping mechanisms 2 and a centrally arranged propulsion mechanism 3 are fixedly connected to the bottom of the drone 1. The bottom of the throwing and clamping mechanism 2 is equipped with a safety mechanism 4. The landing gear 5 is mounted on the side of the drone 1. The throwing and clamping mechanism 2 clamps and fixes a fire extinguishing bomb 28. The safety mechanism 4 limits and cooperates with the fire extinguishing bomb 28. The propulsion mechanism 3 is connected to the safety mechanism 4 through transmission, thereby unlocking and driving the safety mechanism 4. This embodiment is suitable for handling large-scale open fires in wild forests, wastelands, etc. It can achieve long-distance cruising and multi-point, multi-stage throwing and extinguishing operations, and is suitable for complex fire scenarios in the wild where no personnel can approach.

[0033] The throwing and clamping mechanism 2 includes a connecting plate 21. The top of the connecting plate 21 is fixedly connected to the bottom of the UAV 1. The bottom of the connecting plate 21 is fixedly equipped with a controller 22 and a vertically arranged main support rod 23. In complex airflow environments in the field, the integrated fixed structure of the connecting plate 21 can improve the overall structural stability. The controller 22 supports remote time-sharing control and can realize the sequential deployment of fire extinguishing bombs 28 at multiple points during a single cruise.

[0034] The main support rod 23 is slidably sleeved with a connecting seat 24. The connecting seat 24 is symmetrically hinged with a folding main arm 25 on both sides. The bottom of the folding main arm 25 is hinged with a secondary arm 26. When cruising in the field, the folding main arm 25 and the secondary arm 26 are kept in a retracted clamping state, which can reduce the wind resistance of the UAV 1 and improve the long-distance cruising endurance.

[0035] The inner wall of the auxiliary arm 26 is fixedly connected with a clamping ring 27. The clamping rings 27 on both sides form an annular clamping space and hold the fire extinguishing bomb 28 tightly. The full-coverage structure of the clamping rings 27 can resist the impact of turbulent water in the field and prevent the fire extinguishing bomb 28 from loosening and shifting during the cruise.

[0036] The safety mechanism 4 includes a safety compartment 41 fixed at the bottom center of the main support rod 23. The bottom of the safety compartment 41 has a vertical through hole 42, and a locking rod 43 is vertically inserted inside the through hole 42. The closed structure of the safety compartment 41 can effectively prevent outdoor grass and wood debris and rainwater from entering the interior, and protect the stable operation of the internal transmission structure.

[0037] The top of the locking rod 43 is inserted into the docking hole at the top of the safety compartment 41. The locking rod 43 has a ring-shaped locking groove 44 in the middle. The bottom of the locking rod 43 is fixed to the fire extinguishing bomb 28. The ring-shaped locking groove 44 can adapt to high-frequency turbulence flight conditions in the field and always maintains precise matching and positioning with the semi-circular stop wheel 45.

[0038] The safety compartment 41 is rotatably connected to a semi-circular retaining wheel 45. The arc-shaped section of the semi-circular retaining wheel 45 engages and embeds into the locking ring groove 44 to form an axial limiting structure. The double limiting structure can completely prevent the fire extinguishing bomb 28 from accidentally falling off during long-distance field patrols, thus improving operational safety.

[0039] The shaft of the semi-circular stop wheel 45 runs vertically through the bottom of the safety compartment 41 and extends outward. The extended end of the shaft is fixedly connected to a transmission gear 46. The gear transmission structure is suitable for complex field conditions, with high transmission accuracy and low failure rate, ensuring stable operation of multiple continuous unlocking operations.

[0040] The propulsion mechanism 3 includes a connecting rod 31 fixed at the center of the bottom of the drone 1. A horizontally arranged bidirectional cylinder 32 is fixedly connected to the bottom of the connecting rod 31. The centrally arranged propulsion mechanism 3 can synchronously link the safety mechanisms 4 on both sides to meet the needs of simultaneous deployment of two projectiles and rapid suppression of fire in large-scale fires in the wild.

[0041] Both ends of the bidirectional cylinder 32 are fixedly connected to horizontally arranged drive rods 33. The outer ends of the drive rods 33 are fixedly connected to push tooth plates 34. The tooth surfaces of the push tooth plates 34 mesh with the transmission gears 46 for transmission. The unlocking timing can be precisely controlled according to the fire location to achieve targeted and efficient fire extinguishing operations in the field.

[0042] The working principle of this invention is: When the drone 1 hovers above the fire, the controller 22 drives the telescopic component inside the main support rod 23 to push the connecting seat 24 downward. The connecting seat 24 slides vertically down along the main support rod 23 and squeezes the upper hinge points of the folding main arms 25 on both sides, forcing the folding main arms 25 to open outward, thereby driving the auxiliary arm 26 and the clamping ring 27 to expand outward in sync, releasing the mechanical clamping constraint on the circumference of the fire extinguishing bomb 28.

[0043] At the same time, the bidirectional cylinder 32 located in the middle area at the bottom of the UAV 1 is activated, and the piston rods at both ends extend outward synchronously and push the drive rod 33 to move horizontally. The pusher plate 34 at the end of the drive rod 33 then performs linear reciprocating motion. The rack structure of the pusher plate 34 meshes with the transmission gear 46 on the outside of the safety compartment 41, converting the linear thrust into the rotational torque of the transmission gear 46.

[0044] When the transmission gear 46 rotates, it drives the coaxially connected semi-arc-shaped retaining wheel 45 to rotate, causing the arc surface of the semi-arc-shaped retaining wheel 45, which was originally stuck in the locking ring groove 44, to gradually deflect and disengage from the locking ring groove 44, thereby releasing the axial limit on the locking rod 43. At this time, the fire extinguishing bomb 28 falls vertically to the target area through the through hole 42 under the action of gravity to complete the throwing operation.

[0045] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A fire-fighting drone for throwing and extinguishing fires, comprising a drone (1), a throwing and holding mechanism (2), a propulsion mechanism (3), a safety mechanism (4), and landing gear (5); The bottom of the UAV (1) is fixedly connected to two sets of symmetrically arranged throwing clamping mechanisms (2) and a centrally arranged pushing mechanism (3). The bottom of the throwing clamping mechanism (2) is equipped with a safety mechanism (4), and the landing gear (5) is mounted on the side of the UAV (1). The throwing and clamping mechanism (2) clamps and fixes the fire extinguishing bomb (28), the safety mechanism (4) limits and cooperates with the fire extinguishing bomb (28), and the pushing mechanism (3) is connected to the safety mechanism (4) to unlock the safety mechanism (4).

2. The firefighting drone for throwing and extinguishing fires according to claim 1, characterized in that, The throwing and clamping mechanism (2) includes a connecting plate (21), the top of which is fixedly connected to the bottom of the UAV (1), and the bottom of the connecting plate (21) is fixedly equipped with a controller (22) and a vertically arranged main support rod (23).

3. The firefighting drone for throwing and extinguishing fires according to claim 2, characterized in that, The main support rod (23) is slidably sleeved with a connecting seat (24), and the connecting seat (24) is symmetrically hinged with a folding main arm (25) on both sides, and a secondary arm (26) is hinged at the bottom of the folding main arm (25).

4. The firefighting drone for throwing and extinguishing fires according to claim 3, characterized in that, The inner wall of the auxiliary arm (26) is fixedly connected with a clamping ring (27), and the two clamping rings (27) on both sides form an annular clamping space and hold the fire extinguishing bomb (28) tightly.

5. The firefighting drone for throwing and extinguishing fires according to claim 2, characterized in that, The insurance mechanism (4) includes an insurance compartment (41) fixed at the center of the bottom of the main support rod (23). The bottom of the insurance compartment (41) has a vertical through hole (42), and a locking rod (43) is vertically inserted inside the through hole (42).

6. The firefighting drone for throwing and extinguishing fires according to claim 5, characterized in that, The top end of the locking rod (43) is inserted into the docking hole at the top of the safety compartment (41). The locking rod (43) has a locking ring groove (44) with an annular structure in the middle. The bottom end of the locking rod (43) is fixed to the fire extinguishing bomb (28).

7. The firefighting drone for throwing and extinguishing fires according to claim 6, characterized in that, The safety compartment (41) is rotatably connected to a semi-arc-shaped stop wheel (45), and the arc-shaped section of the semi-arc-shaped stop wheel (45) engages and embeds into the locking ring groove (44) to form an axial limiting structure.

8. The firefighting drone for throwing and extinguishing fires according to claim 7, characterized in that, The shaft of the semi-circular stop wheel (45) extends vertically through the bottom of the safety compartment (41) and outwards, and a transmission gear (46) is fixedly connected to the extended end of the shaft.

9. The firefighting drone for throwing and extinguishing fires according to claim 1, characterized in that, The pushing mechanism (3) includes a connecting rod (31) fixed at the center of the bottom of the UAV (1), and a horizontally arranged bidirectional cylinder (32) is fixedly connected to the bottom end of the connecting rod (31).

10. The firefighting drone for throwing and extinguishing fires according to claim 9, characterized in that, Both ends of the bidirectional cylinder (32) are fixedly connected to horizontally arranged drive rods (33), and the outer ends of the drive rods (33) are fixedly connected to push tooth plates (34). The tooth surfaces of the push tooth plates (34) mesh with the transmission gears (46) for transmission.

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