Intelligent inspection fire-fighting unmanned aerial vehicle

Abstract

The invention provides an intelligent inspection fire-fighting unmanned aerial vehicle, and relates to the technical field of fire-fighting unmanned aerial vehicles, and the unmanned aerial vehicle comprises an unmanned aerial vehicle body, and a mounting seat and a mounting rack which are mounted at the bottom of the unmanned aerial vehicle body. An adjustable reverse thrust mechanism is arranged on one side of the mounting frame, two rotatable nozzle clamps are arranged on the other side of the mounting frame, a transmission mechanism is arranged at the bottom, and tank clamping frames are in sliding fit with the two sides of the mounting frame. And the transmission mechanism is configured to synchronously drive the two nozzle clamps to clamp or release nozzles of the fire extinguisher tank body and synchronously drive the two tank body clamping frames to clamp or release a tank body of the tank body. Through the integrated linkage design, rapid and automatic clamping, aiming, reverse thrust posture stabilizing, jetting and releasing of the fire extinguisher tank are achieved, and the fire extinguishing operation efficiency of the unmanned aerial vehicle is remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of firefighting drone technology, and in particular to an intelligent inspection firefighting drone. Background Technology

[0002] Intelligent inspection and firefighting drones are high-tech devices that combine drone technology with fire safety management. They are typically used for tasks such as fire monitoring, fire inspection, and firefighting support. They can significantly improve the efficiency of firefighting work and have high safety and flexibility.

[0003] Existing firefighting drones, when flying to forest fire areas, adapt to the strong airflow caused by the flames by deforming their impact-resistant rubber plates to improve flight stability. However, these drones typically carry internal extinguishing agents or use fixed extinguishing devices, which presents a challenge in quickly replenishing and replacing the extinguishing agents once they are depleted. This severely limits the drones' efficiency in continuous operations or when dealing with multiple fires, making it difficult to efficiently complete large-scale, long-duration firefighting missions. Summary of the Invention

[0004] To address the technical problem of the inconvenience of quickly carrying and replacing fire extinguishing agent tanks in the aforementioned background technology, this invention provides an intelligent inspection firefighting drone. By setting up a tank clamping frame and nozzle clamp driven synchronously by a transmission mechanism, it realizes the rapid and automated clamping and release of fire extinguishing agent tanks.

[0005] This invention provides an intelligent inspection and firefighting drone, including a drone body with a mounting base at the bottom. A mounting frame is detachably connected to the mounting base. An adjustable reverse thrust mechanism is rotatably connected to one side of the mounting frame, and two rotatable nozzle clamps are symmetrically arranged on the other side. A transmission mechanism is provided at the bottom of the mounting frame, and canister clamps for clamping fire extinguisher canisters are slidably fitted on both sides of the mounting frame. The transmission mechanism is configured to synchronously drive the two nozzle clamps to move towards or away from each other to clamp or release the nozzles of the fire extinguisher canister, and synchronously drive the two canister clamps to move towards or away from each other to clamp or release the canister body of the fire extinguisher canister.

[0006] Furthermore, the inner walls at both ends of the mounting base are slidably fitted with snap-fit ​​strips, and the inner ends of the snap-fit ​​strips are connected to the inner walls of the mounting base via springs; the top of the mounting frame is provided with a slot for movably inserting into the mounting base and the snap-fit ​​strips.

[0007] Furthermore, a first electric actuator is fixedly mounted on the mounting frame, and an I-shaped rack is fixedly connected to the output end of the first electric actuator; the adjustable reverse thrust mechanism includes a rotating seat that is rotatably connected to the mounting frame via a rotating shaft, and a first gear that meshes with one side of the I-shaped rack is fixed to one end of the rotating shaft.

[0008] Furthermore, a first motor is fixedly installed inside the rotating base, and a second electric push rod is connected to the output end of the first motor. A reverse thrust propeller is fixed to the output end of the second electric push rod. A protective base for housing the reverse thrust propeller is also provided on the rotating base.

[0009] Furthermore, each of the nozzle clamps is connected to a sleeve rod, on which a rotating sleeve is slidably sleeved and rotatably connected to the mounting bracket. A second gear that meshes with the other side of the I-shaped rack is fixed on the rotating sleeve. The end of the sleeve rod away from the nozzle clamp is movably connected to the transmission mechanism via a connecting rod.

[0010] Furthermore, the transmission mechanism includes a hydraulic rod, which is fixed to the mounting frame, and its output end is connected to a movable frame; the movable frame is rotatably connected to the two connecting rods respectively through two symmetrical connecting rods.

[0011] Furthermore, each of the tank clamping frames is fixed with a guide plate, and the guide plate is provided with a transmission groove; the lower side of the movable frame is rotatably connected to two guide shafts, and the two guide shafts are respectively slidably engaged with the inner walls of the two transmission grooves.

[0012] Furthermore, it also includes a pressing rod, one end of which slides in contact with the spray handle on the fire extinguisher tank, and the other end is rotatably connected to one of the tank clamps via a fixed base. The fixed base is provided with a second motor for driving the pressing rod to rotate.

[0013] Furthermore, the protective seat has two baffles that slide symmetrically at the opening. The baffles slide in contact with the blades of the reverse thrust propeller, and the baffles are connected to the rotating seat by a tension spring.

[0014] Furthermore, a guide rod is fixed on the tank clamping frame, and the guide rod is slidably engaged with the mounting frame.

[0015] Compared with existing technologies, the intelligent inspection and firefighting drone provided by this invention has the following beneficial effects: (1) By setting up a tank clamp, the UAV body can quickly disassemble and assemble the fire extinguisher tank, making it convenient for the UAV body to carry the fire extinguisher tank. At the same time, by setting up a transmission mechanism, the fire extinguisher tank can be quickly disassembled and automatically released, reducing the load of the UAV, improving flight performance and operational efficiency, enabling fire-fighting UAVs to cope with long-term, high-intensity fire-fighting tasks more efficiently, and enhancing their emergency response capabilities and continuous operation capabilities at the fire scene. (2) By setting a rotatable nozzle clamp, the nozzle of the fire extinguisher can be clamped and adjusted up and down according to the location of the fire source. At the same time, the rotatable pressing rod can automatically press the spray handle of the fire extinguisher, which can accurately control the nozzle direction and spray intensity of the fire extinguisher, improve fire extinguishing efficiency and operational safety, and reduce the reliance on human operation, enabling the drone to carry out fire extinguishing tasks efficiently and continuously. It has significant advantages in automation, intelligence and efficiency. (3) By setting an adjustable reverse thrust mechanism, the axis of the reverse thrust propeller is aligned with the nozzle of the fire extinguisher by rotating the adjustable reverse thrust mechanism that rotates simultaneously with the nozzle clamp. When the fire extinguisher is opened, the rotating reverse thrust propeller can effectively counteract the recoil generated when the fire extinguisher sprays the extinguishing agent, which significantly improves the flight stability, control accuracy and mission execution capability of the UAV. Attached Figure Description

[0016] The accompanying drawings, which form part of this disclosure, are used to provide a further understanding of this disclosure. The illustrative embodiments of this disclosure and their descriptions are used to explain this disclosure and do not constitute an undue limitation of this disclosure. The spacing or dimensions between parts are exaggerated to show the position of each part, and the schematic diagrams are for illustrative purposes only.

[0017] Figure 1 This is a schematic diagram of the overall structure of an intelligent inspection and firefighting drone provided in Embodiment 1 of the present invention; Figure 2 This is a partial structural diagram of an intelligent inspection and firefighting drone provided in Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the mounting base structure of an intelligent inspection and firefighting drone provided in Embodiment 1 of the present invention; Figure 4 This is a schematic diagram of the mounting frame structure of an intelligent inspection and firefighting drone provided in Embodiment 1 of the present invention; Figure 5 This is a partial cross-sectional schematic diagram of the adjustable reverse thrust mechanism structure of an intelligent inspection and firefighting drone provided in Embodiment 1 of the present invention; Figure 6 This is a schematic diagram of the nozzle clamp structure of an intelligent inspection and firefighting drone provided in Embodiment 1 of the present invention; Figure 7This is a schematic diagram of the transmission mechanism structure of an intelligent inspection and firefighting drone provided in Embodiment 1 of the present invention; Figure 8 This is a schematic diagram of the tank clamping frame and pressing rod structure of an intelligent inspection and fire-fighting drone provided in Embodiment 1 of the present invention.

[0018] The components include: 1. UAV body; 2. Mounting base; 201. Connecting strip; 202. Spring; 3. Mounting bracket; 301. Slot; 302. First electric push rod; 303. I-beam rack; 4. Adjustable reverse thrust mechanism; 401. Rotating seat; 402. Rotating shaft; 403. First gear; 404. First motor; 405. Second electric push rod; 406. Reverse thrust propeller; 407. Protective base; 408. Baffle; 409. 5. Tension spring; 6. Nozzle clamp; 7. Sleeve rod; 8. Rotating sleeve; 9. Second gear; 10. Connecting rod; 11. Transmission mechanism; 12. Hydraulic rod; 13. Moving frame; 14. Connecting rod; 15. Guide shaft; 16. Tank clamping frame; 17. Fire extinguisher tank; 18. Guide rod; 19. Guide plate; 20. Transmission sloping groove; 10. Pressing rod; 11. Fixed base; 12. Second motor. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] It should be noted that the following detailed descriptions are exemplary and intended to provide further illustration of the invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0021] It should be noted that the terminology used herein is for the purpose of describing specific embodiments only and is not intended to limit the exemplary embodiments of the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form as well. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof. The use of the words "upper," "lower," "left," and "right" in this invention only indicates alignment with the upper, lower, left, and right directions of the drawings themselves and does not limit the structure. They are merely for the convenience of describing the 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. Therefore, they should not be construed as limiting the invention.

[0022] Example 1 This embodiment provides an intelligent inspection and firefighting drone, such as Figure 1 and Figure 2 As shown, the device includes a drone body (1), a mounting base (2) is provided at the bottom of the drone body (1), and a mounting frame (3) is detachably connected to the mounting base (2); an adjustable reverse thrust mechanism (4) is rotatably connected to one side of the mounting frame (3), and two rotatable nozzle clamps (5) are symmetrically arranged on the other side; a transmission mechanism (6) is provided at the bottom of the mounting frame (3); and canister clamping frames (7) for clamping fire extinguisher canisters (701) are slidably fitted on both sides of the mounting frame (3); the transmission mechanism (6) is configured to synchronously drive the two nozzle clamps (5) to move towards or away from each other to clamp or release the nozzles of the fire extinguisher canister (701), and synchronously drive the two canister clamping frames (7) to move towards or away from each other to clamp or release the canister body of the fire extinguisher canister (701).

[0023] Specifically, the inner walls at both ends of the mounting base (2) are slidably fitted with snap-fit ​​strips (201), and the inner ends of the snap-fit ​​strips (201) are connected to the inner walls of the mounting base (2) by springs (202); the top of the mounting bracket (3) is provided with a slot (301) that is movably inserted into the mounting base (2) and the snap-fit ​​strips (201).

[0024] When the slot (301) of the mounting bracket (3) is aligned with the mounting base (2) and pressed down, the inclined surface of the outer end of the locking strip (201) is compressed and retracted, compressing the spring (202); when the slot (301) reaches the locking position, the spring (202) pushes the outer end of the locking strip (201) to pop out and lock into the recess on the side wall of the slot (301), achieving automatic locking. During disassembly, simply press the locking strips (201) on both sides inward against the spring force to disengage. This structure enables rapid modular docking between the carrying platform and the flight platform, facilitating the maintenance, replacement, or deployment of the entire fire extinguishing module among different UAVs.

[0025] Specifically, a first electric push rod (302) is fixedly installed on the mounting frame (3), and an I-shaped rack (303) is fixedly connected to the output end of the first electric push rod (302); the adjustable reverse push mechanism (4) includes a rotating seat (401) rotatably connected to the mounting frame (3) via a rotating shaft (402), and a first gear (403) meshing with one side of the I-shaped rack (303) is fixed at one end of the rotating shaft (402).

[0026] The first electric actuator (302) extends and retracts, driving the I-shaped rack (303) to move linearly. One side of the I-shaped rack (303) drives the first gear (403) to rotate, thereby driving the entire rotating base (401) and its thrust reverser assembly to rotate around the axis via the rotating shaft (402). This provides the basic drive for the subsequent synchronous alignment of the thrust reverser propeller and the nozzle.

[0027] Specifically, a first motor (404) is fixedly installed inside the rotating base (401), and a second electric push rod (405) is connected to the output end of the first motor (404). A reverse thrust propeller (406) is fixed to the output end of the second electric push rod (405). A protective base (407) for housing the reverse thrust propeller (406) is also provided on the rotating base (401).

[0028] The rotating base (401) enables two actions: first, "extension," where the second electric actuator (405) pushes the thrust reverser (406) out of the protective base (407) to the working position; second, "rotation and thrust," where the first motor (404) starts and drives the thrust reverser (406) to rotate at high speed to generate thrust. The direction of this thrust can be adjusted. In addition, the protective base (407) stores and protects the propeller when not in operation.

[0029] Specifically, each of the nozzle clamps (5) is connected to a sleeve rod (501), and a rotating sleeve (502) that is slidably sleeved on the sleeve rod (501) and rotatably connected to the mounting bracket (3) is rotatably connected to it. A second gear (503) that meshes with the other side of the I-shaped rack (303) is fixed on the rotating sleeve (502). The end of the sleeve rod (501) away from the nozzle clamp (5) is movably connected to the transmission mechanism (6) through a connecting rod (504).

[0030] When the same I-shaped rack (303) moves, the rack on its other side will synchronously drive the second gear (503) to rotate. The second gear (503) drives the rotating sleeve (502), the sleeve rod (501), and the nozzle clamp (5) to rotate as a whole, thereby realizing the adjustment of the pitch angle of the fire extinguishing nozzle. At the same time, the sleeve rod (501) can slide inside the rotating sleeve (502) to meet the needs of the clamping action. This design cleverly decouples the angle adjustment and the clamping action and uses the same drive source (the first electric actuator (302)), simplifying the structure.

[0031] Specifically, the transmission mechanism (6) includes a hydraulic rod (601), which is fixed on the mounting frame (3) and its output end is connected to a movable frame (602); the movable frame (602) is rotatably connected to the two connecting rods (504) respectively through two symmetrical connecting rods (603).

[0032] The hydraulic rod (601) serves as a power source, driving the moving frame (602) to move linearly. The moving frame (602) converts the linear motion into the opposite or opposite motion of the two connecting rods (504) through two symmetrical connecting rods (603), thereby pushing the sleeve rod (501) and the nozzle clamp (5) to complete the clamping or releasing action of the fire extinguisher nozzle.

[0033] Specifically, each of the tank clamping frames (7) is fixed with a guide plate (703), and the guide plate (703) is provided with a transmission groove (704); the lower side of the moving frame (602) is rotatably connected with two guide shafts (604), and the two guide shafts (604) are respectively slidably engaged with the inner walls of the two transmission grooves (704).

[0034] When the movable frame (602) is driven to move linearly by the hydraulic rod (601), the guide shaft (604) on it slides within the transmission sloping groove (704). Due to the guiding effect of the sloping groove, the force generated by the guide shaft (604) on the sloping groove wall can be decomposed into a force perpendicular to the sloping groove (which is constrained and canceled out) and a component force along the inclination direction of the sloping groove. This component force drives the guide plate (703) and the tank clamping frame (7) fixed thereto to move in a direction perpendicular to the movement of the movable frame (602) (i.e., the horizontal direction). By reasonably designing the inclination direction of the two sloping grooves, the synchronous opposite (clamping) or opposite (releasing) movement of the two tank clamping frames (7) can be achieved. This structure cleverly and reliably transmits one linear drive of the movable frame (602) synchronously to the tank clamping frame (7), realizing the linkage effect of "single power source, dual clamping".

[0035] Specifically, it also includes a pressing rod (8), one end of which slides in contact with the spray handle on the fire extinguisher tank (701), and the other end is rotatably connected to one of the tank clamps (7) via a fixed base (801). A second motor (802) for driving the pressing rod (8) to rotate is provided on the fixed base (801).

[0036] When fire extinguishing is required, the second motor (802) is controlled to rotate, driving the pressing lever (8) to rotate like a lever around the fulcrum on the fixed base (801). The other end of the lever presses down on the spray handle of the fire extinguisher tank (701), initiating the spraying of the extinguishing agent. This design achieves remote electronic automation of the extinguishing agent spraying, eliminating the need for additional manual operation or complex mechanical transmissions, thus improving the timeliness of response and operational safety.

[0037] Specifically, the protective seat (407) has two baffles (408) that slide symmetrically at the opening. The baffles (408) slide in contact with the blades of the reverse thrust propeller (406), and the baffles (408) are connected to the rotating seat (401) by a tension spring (409).

[0038] When the reverse thrust propeller (406) retracts into its protective seat (407), the blade edges push open the baffles (408) on both sides, compressing the tension spring (409). After the propeller is fully inside, the baffles (408) automatically reset and close under the action of the tension spring (409), sealing the opening and preventing foreign objects from entering. When the propeller needs to extend, its rotational centrifugal force or the thrust of the second electric push rod (405) can easily push open the baffles (408). This structure provides effective protection for the propeller in its non-working state without affecting its normal extension and retraction.

[0039] Specifically, a guide rod (702) is fixed on the tank clamping frame (7), and the guide rod (702) slides through the mounting frame (3).

[0040] The guide rod (702) and the guide hole on the mounting bracket (3) form a sliding pair, which provides precise linear guidance and support for the horizontal movement of the tank clamping bracket (7), ensuring the smoothness and centering of the clamping action and preventing the tank from deviating or getting stuck during the clamping process.

[0041] In one specific embodiment, the intelligent inspection and fire-fighting drone has a mounting base (2) fixedly connected to the bottom of the drone body (1), a mounting frame (3) on the mounting base (2), an adjustable reverse thrust mechanism (4) rotatably connected to one side of the mounting frame (3), two nozzle clamps (5) symmetrically arranged on the other side of the mounting frame (3), a transmission mechanism (6) fixedly connected to the bottom of the mounting frame (3), and tank clamping frames (7) slidably fitted on both sides of the mounting frame (3), with a pressing rod (8) on one side of one of the tank clamping frames (7).

[0042] like Figure 3 As shown, both ends of the mounting base (2) are fitted with snap-fit ​​strips (201) that slide together. The lower side of the outer end of the snap-fit ​​strip (201) has a bevel. Multiple springs (202) are fixedly connected to the inner end of the snap-fit ​​strip (201), and the other end of the springs (202) is fixedly connected to the inner wall of the mounting base (2). The bevel on the lower side of the outer end of the snap-fit ​​strip (201) facilitates the quick installation of the mounting bracket (3).

[0043] like Figure 4 As shown, the top of the mounting bracket (3) is provided with a slot (301), the slot (301) is movably inserted into the mounting base (2) and the snap-fit ​​strip (201), the mounting bracket (3) is fixedly connected with a first electric push rod (302), and the first electric push rod (302) is fixedly connected with an I-shaped rack (303).

[0044] like Figure 5As shown, the adjustable thrust reverser mechanism (4) includes a rotating base (401). Rotating shafts (402) are fixedly connected to both sides of the rotating base (401). The rotating shafts (402) are rotatably connected to the mounting bracket (3). A first gear (403) is fixedly connected to one end of the rotating shaft (402), and the first gear (403) meshes with an I-shaped rack (303) for transmission. A first motor (404) is fixedly connected inside the rotating base (401). A second electric push rod (405) is fixedly connected to the output end of the first motor (404), and a thrust reverser propeller (406) is fixedly connected to the other end of the second electric push rod (405). The other side of the I-shaped rack (303) drives the rotating shaft (402) connected to the first gear (403) to rotate, so that the rotating shaft (402) can drive the connected rotating base (401) to rotate, making the axis of the thrust reverser propeller (406) and the axis of the nozzle collinear.

[0045] A protective seat (407) is fixedly connected to one side of the rotating base (401). The protective seat (407) is rotatably connected to the second electric push rod (405). Two baffles (408) are symmetrically arranged and slidably fitted at the opening on one side of the protective seat (407). Both sides of the baffles (408) have inclined surfaces. The inclined surfaces of the baffles (408) are in sliding contact with the reverse thrust propeller (406). Multiple tension springs (409) are fixedly connected to one end of the baffles (408), and the other end of the tension springs (409) is fixedly connected to the rotating base (401). The inclined surfaces of the baffles (408) allow the reverse thrust propeller (406) to move smoothly, and the tension springs (409) allow the baffles (408) to automatically reset, thus protecting the reverse thrust propeller (406) in conjunction with the protective seat (407). The first motor (404) drives the second electric push rod (405) connected to the reverse thrust propeller (406) to rotate, thereby counteracting the recoil generated when the fire extinguisher sprays the extinguishing agent.

[0046] like Figure 6 As shown, a sleeve rod (501) is fixedly connected to one end of the nozzle clamp (5). A rotating sleeve (502) is slidably fitted on the sleeve rod (501). The rotating sleeve (502) is rotatably connected to the mounting bracket (3). A second gear (503) is fixedly connected to the rotating sleeve (502). The second gear (503) meshes with the I-shaped rack (303) for transmission. A connecting rod (504) is rotatably connected to the other end of the sleeve rod (501). The first electric actuator (302) drives the I-shaped rack (303) to move. At this time, one side of the I-shaped rack (303) will drive the rotating sleeve (502) connected to the second gear (503) to rotate, so that the rotating sleeve (502) can drive the nozzle clamp (5) connected to the sleeve rod (501) to adjust the angle.

[0047] like Figure 7As shown, the transmission mechanism (6) includes a hydraulic rod (601). One end of the hydraulic rod (601) is fixedly connected to the mounting frame (3). A movable frame (602) is fixedly connected to the output end of the hydraulic rod (601). Two connecting rods (603) are rotatably connected to the movable frame (602) in a symmetrical structure. The other end of the connecting rod (603) is rotatably connected to the connecting rod (504). Two guide shafts (604) are rotatably connected to the lower side of the movable frame (602) in a symmetrical structure. The hydraulic rod (601) drives the connected movable frame (602) to move, so that the movable frame (602) drives the sleeve rod (501) connected to the connecting rod (504) to move through the connecting rod (603). This causes the nozzle clamp (5) connected to the sleeve rod (501) to clamp and fix the nozzle of the fire extinguisher tank (701). At the same time, the guide shaft (604) on the movable frame (602) slides in the transmission inclined groove (704), which will drive the tank clamping frame (7) connected to the guide plate (703) to move, thereby clamping and fixing the fire extinguisher tank (701).

[0048] like Figure 8 As shown, a fire extinguisher canister (701) is held between two canister clamps (7). The nozzle of the fire extinguisher canister (701) is adapted to the nozzle clamp (5). Two guide rods (702) are fixedly connected to one side of the canister clamp (7). The guide rods (702) and the mounting bracket (3) are slidably connected through each other. A guide plate (703) is fixedly connected to the canister clamp (7). A transmission groove (704) is opened on the guide plate (703). The inner wall of the transmission groove (704) is slidably connected to the outer wall of the guide shaft (604).

[0049] By setting a tank clamp (7), the UAV body (1) can quickly disassemble and assemble the fire extinguisher tank (701), making it convenient for the UAV body (1) to carry the fire extinguisher tank (701). At the same time, by setting a transmission mechanism (6), the fire extinguisher tank (701) can be quickly disassembled and automatically released, reducing the UAV's load, improving flight performance and operational efficiency, enabling fire-fighting UAVs to cope more efficiently with long-term, high-intensity fire-fighting tasks, and enhancing their emergency response capabilities and continuous operation capabilities at fire scenes.

[0050] like Figure 8As shown, one end of the pressing rod (8) is slidably in contact with the outer wall of the spray handle on the fire extinguisher tank (701), and the other end of the pressing rod (8) is rotatably connected to a fixed base (801). The fixed base (801) is fixedly connected to the tank clamp (7), and a second motor (802) is fixedly installed on the fixed base (801). The output end of the second motor (802) is fixedly connected to one end of the pressing rod (8). The second motor (802) drives the connected pressing rod (8) to rotate, so that the pressing rod (8) presses the spray handle on the fire extinguisher tank (701), so that the extinguishing agent in the fire extinguisher tank (701) can be sprayed out.

[0051] Working principle: When intelligent fire inspection is required, the mounting bracket (3) is first installed on the drone body (1). By aligning the slot (301) on the mounting bracket (3) with the mounting base (2) and fitting it onto the mounting base (2), the spring (202) will cause the snap-fit ​​strip (201) to snap into the slot (301), thus realizing the installation of the mounting bracket (3). Then, the fire extinguisher canister (701) is placed between two canister clamps (7), and the nozzle of the fire extinguisher canister (701) is placed between two nozzle clamps (5). Then, the hydraulic rod (601) drives the connected moving frame (602) to move, so that the moving frame (602) drives the sleeve rod (501) connected to the connecting rod (504) to move through the connecting rod (603), so that the nozzle clamp (5) connected to the sleeve rod (501) clamps and fixes the nozzle of the fire extinguisher canister (701). At the same time, the guide shaft (604) on the moving frame (602) slides in the transmission inclined groove (704), which will drive the canister clamp (7) connected to the guide plate (703) to move, clamping and fixing the fire extinguisher canister (701). Then, the drone body (1) carries the fire extinguisher tank (701) for inspection. When a fire point is detected, the second electric push rod (405) is used to drive the reverse thrust propeller (406) to move out of the protective seat (407). Then, the first electric push rod (302) is used to drive the I-shaped rack (303) to move. At this time, one side of the I-shaped rack (303) will drive the rotating sleeve (502) connected to the second gear (503) to rotate, so that the rotating sleeve (502) can drive the nozzle clamp (5) connected to the sleeve rod (501) to adjust the angle, so that the clamped nozzle can be aimed at the fire point. At the same time, the other side of the I-shaped rack (303) will drive the rotating shaft (402) connected to the first gear (403) to rotate, so that the rotating shaft (402) can drive the connected rotating seat (401) to rotate, so that the axis of the reverse thrust propeller (406) and the axis of the nozzle are on the same straight line; Then, the second motor (802) drives the connected pressing rod (8) to rotate, so that the pressing rod (8) presses the spray handle on the fire extinguisher tank (701), so that the extinguishing agent in the fire extinguisher tank (701) can be sprayed out. At this time, the first motor (404) drives the reverse thrust propeller (406) connected to the second electric push rod (405) to rotate, thereby counteracting the recoil generated when the fire extinguisher sprays out the extinguishing agent and ensuring the flight stability of the UAV. After the extinguishing agent in the fire extinguisher canister (701) is used up, in order to improve the endurance and efficiency of the drone body (1), the nozzle clamp (5) and canister clamp (7) can be released by controlling the transmission mechanism (6), so that the fire extinguisher canister (701) can fall automatically, making it convenient for the drone body (1) to return quickly and carry a new fire extinguisher canister (701).

[0052] In the description of this specification, the terms "connection", "installation", "fixing", "setting", etc. are interpreted broadly. For example, "connection" can be a fixed connection or an indirect connection through an intermediate component without affecting the relationship between components and the technical effect. It can also be an integral connection or a partial connection. In such cases, those skilled in the art can understand the specific meaning of the above terms in this invention or invention according to the specific circumstances.

[0053] The above description is only 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. An intelligent patrol fire-fighting unmanned aerial vehicle, comprising an unmanned aerial vehicle body (1), characterized in that, The bottom of the unmanned aerial vehicle body (1) is provided with a mounting seat (2), and a mounting rack (3) is detachably connected to the mounting seat (2); one side of the mounting rack (3) is rotatably connected with an adjustable reverse thrust mechanism (4), and the other side is symmetrically provided with two rotatable nozzle clamps (5); the bottom of the mounting rack (3) is provided with a transmission mechanism (6), and both sides of the mounting rack (3) are slidably connected with a tank clamping rack (7) for clamping a fire extinguisher tank body (701); the transmission mechanism (6) is configured to synchronously drive the two nozzle clamps (5) to move towards or away from each other to clamp or release the nozzle of the fire extinguisher tank body (701), and synchronously drive the two tank clamping racks (7) to move towards or away from each other to clamp or release the tank body of the fire extinguisher tank body (701).

2. The intelligent patrol fire-fighting drone of claim 1, wherein, The inner walls of both ends of the mounting seat (2) are slidably connected with a clamping strip (201), and the inner end of the clamping strip (201) is connected with the inner wall of the mounting seat (2) through a spring (202); the top end of the mounting rack (3) is provided with a clamping groove (301) which is movably inserted into the mounting seat (2) and the clamping strip (201).

3. The intelligent patrol fire-fighting drone of claim 2, wherein, A first electric push rod (302) is fixedly arranged on the mounting rack (3), and the output end of the first electric push rod (302) is fixedly connected with a I-shaped rack (303); the adjustable reverse thrust mechanism (4) comprises a rotating seat (401) rotatably connected with the mounting rack (3) through a rotating shaft (402), and one end of the rotating shaft (402) is fixedly connected with a first gear (403) meshing with one side of the I-shaped rack (303).

4. The intelligent patrol fire-fighting drone of claim 3, wherein, A first motor (404) is fixedly arranged in the rotating seat (401), the output end of the first motor (404) is connected with a second electric push rod (405), and the output end of the second electric push rod (405) is fixedly connected with a reverse thrust propeller (406); the rotating seat (401) is further provided with a protective seat (407) for accommodating the reverse thrust propeller (406).

5. The intelligent patrol fire-fighting drone of claim 3, wherein, Each nozzle clamp (5) is connected with a sleeve rod (501), a rotating sleeve (502) is slidably sleeved on the sleeve rod (501) and rotatably connected with the mounting rack (3), a second gear (503) is fixedly arranged on the rotating sleeve (502) and meshing with the other side of the I-shaped rack (303); one end of the sleeve rod (501) away from the nozzle clamp (5) is movably connected with the transmission mechanism (6) through a connecting rod (504).

6. The intelligent patrol fire-fighting drone of claim 5, wherein, The transmission mechanism (6) comprises a hydraulic rod (601), the hydraulic rod (601) is fixed on the mounting rack (3), and the output end of the hydraulic rod (601) is connected with a moving rack (602); the moving rack (602) is rotatably connected with two connecting rods (504) through two symmetrical connecting rods (603).

7. The intelligent patrol fire-fighting drone of claim 6, wherein, Each of the tank clamping frames (7) is fixed with a guide plate (703), and the guide plate (703) is provided with a transmission inclined groove (704); the lower side of the moving frame (602) is rotatably connected with two guide shafts (604), and the two guide shafts (604) are respectively in sliding fit with the inner walls of the two transmission inclined grooves (704). 8.The intelligent patrol fire-fighting drone of any one of claims 1 to 7, wherein, A pressing rod (8) is further included, one end of the pressing rod (8) is in sliding contact with a spraying pressure knob on the fire extinguisher tank (701), and the other end is rotatably connected to one of the tank clamping frames (7) through a fixing seat (801), and the fixing seat (801) is provided with a second motor (802) for driving the pressing rod (8) to rotate.

9. The intelligent patrol fire-fighting drone of claim 4, wherein, Two baffle plates (408) are symmetrically and slidingly fitted at the opening of the protection seat (407), the baffle plates (408) are in sliding contact with the blades of the reverse thrust propeller (406), and the baffle plates (408) are connected with the rotating seat (401) through tension springs (409).

10. The intelligent patrol fire-fighting drone of claim 1, wherein, The tank clamping frame (7) is fixed with a guide rod (702), and the guide rod (702) is in sliding fit with the mounting frame (3).

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