A lifting device for unmanned aerial vehicle fire fighting

Abstract

The utility model discloses a kind of for unmanned aerial vehicle fire operation's up pop launching cradle, including fixed plate, fixed plate below is equipped with hook bracket, hook shaft is rotatably connected with hook bracket, hook shaft front end is equipped with the hook of a certain amplitude, hook shaft is rotated by motor drive located at the rear end of fixed plate, the rotation of hook shaft makes hook amplitude upwards or downwards realize up pop locking or release down pop. Utilize motor drive hook shaft rotation, cleverly through hook amplitude direction change, simply and efficiently complete the mounting locking of fire bomb and launching action. Compared with traditional complex locking launching structure, simplify operation process, improve operation efficiency, and mechanical structure is simple, reliability is high, can adapt to the complex environment of unmanned aerial vehicle fire operation, guarantee fire bomb steady mounting in flight process, accurate release when launching. Still can be received instruction by unmanned aerial vehicle and realize automatic launching operation, hanger also has rope hoisting operation, with very high versatility.

Description

Technical Field

[0001] This utility model relates to the field of drone firefighting technology, and in particular to a bomb loading and dropping rig for drone firefighting operations. Background Technology

[0002] In modern firefighting operations, drones are playing an increasingly important role in fire rescue due to their flexibility, maneuverability, and ability to penetrate dangerous areas. Especially in scenarios such as forest fires and high-rise building fires, drones can quickly reach the scene to perform tasks such as fire reconnaissance, material delivery, and fire extinguishing bomb deployment, greatly improving the efficiency and safety of firefighting operations. Among these, using drones to carry fire extinguishing bombs for precise bomb delivery has become a widely recognized firefighting method.

[0003] Currently, existing drone fire extinguishing bomb mounting and delivery devices on the market have many shortcomings. Common mounting methods often employ simple mechanical hooks or clamping structures, which, in practical applications, cannot ensure the stability of the fire extinguishing bomb during flight. For example, during drone flight, especially under complex weather conditions such as strong winds, the fire extinguishing bomb is prone to loosening from the mounting device due to shaking. This not only affects the drone's flight stability but may also cause the fire extinguishing bomb to detach prematurely, creating serious safety hazards. Furthermore, existing bomb-deploying mechanisms are complex to operate and have slow response times, failing to meet the requirements for rapid and accurate bomb delivery in firefighting operations. When facing an emergency fire, the cumbersome bomb-deploying process may cause the optimal firefighting opportunity to be missed, allowing the fire to spread further.

[0004] In some existing technical solutions, although some devices attempt to address the aforementioned problems by adding extra locking components or complex control systems, this results in overly complex device structures, significantly increased costs, and no substantial improvement in reliability. Furthermore, the complex structure increases the difficulty and cost of maintenance, hindering its widespread application in actual firefighting operations.

[0005] This application proposes a bomb loading and dropping pyrotechnic device for drone firefighting operations. It uses a curved hook to rotate and lock the fire extinguishing bombs on the drone for dropping. The aim is to solve the above-mentioned problems in the prior art and provide a simple, stable, reliable and easy-to-operate solution for loading and dropping fire extinguishing bombs for drone firefighting operations. Summary of the Invention

[0006] The technical problem to be solved by this utility model is to provide a bomb loading and unloading gantry for drone firefighting operations, so as to solve the automatic loading and unloading of materials on drones.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A bomb loading and dropping bracket for drone firefighting operations includes a fixed plate, a hook bracket below the fixed plate, a hook shaft rotatably connected to the hook bracket, a hook with a certain arc at the front end of the hook shaft, and the hook shaft is driven to rotate by a motor located at the rear end of the fixed plate. The rotation of the hook shaft causes the hook arc to face up or down to lock the bomb loading or release the bomb dropping.

[0008] The bottom of the arc of the hook is flush with the side of the hook shaft cylinder, and the top of the arc of the hook protrudes from the other side of the hook cylinder to form the hook part.

[0009] The aforementioned fixing plate is equipped with a baffle, the lower end of which has a notch facing the protruding end of the hook, and the front end of the baffle has a rounded corner for easy insertion.

[0010] The motor is fixedly connected to the motor bracket, and the top of the motor bracket is fixedly connected to the fixing plate.

[0011] The rear end of the aforementioned hook shaft passes through the hook bracket and is connected to the hook shaft fixing nut. The end of the motor shaft is provided with a motor turntable, which is connected to the hook shaft fixing nut.

[0012] The motor bracket has a drive board at its lower end. The drive board is electrically connected to the motor and has components for communicating with the UAV. The drive board is used to control the reciprocating rotation of the motor.

[0013] The hook described above has a concave groove on its arc, and a rope clip connected to the end of the groove by an elastic component. In its natural state, the rope clip closes the opening of the groove. The groove and the rope clip are used to lift heavy objects.

[0014] The motor mentioned above is a stepper motor, which is controlled by a drive board to perform 180-degree reciprocating rotation.

[0015] This invention provides an automatic sensor-driven cleaning device to prevent kitchen knives from absorbing odors. It utilizes a motor-driven hook shaft rotation, cleverly changing the hook's curvature to efficiently and simply lock and release fire extinguishing bombs. Compared to traditional, complex locking and releasing structures, this simplifies the operation, improves efficiency, and features a simple, reliable mechanical structure. It can adapt to the complex environment of drone-based firefighting operations, ensuring the fire extinguishing bombs are securely mounted during flight and accurately released upon deployment. Furthermore, it can receive commands from the drone to automatically release the bombs, and the mounting bracket also features rope lifting capabilities, making it highly versatile. Attached Figure Description The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is an exploded schematic diagram of the bomb loading and dropping pylon used in drone firefighting operations according to this utility model; Figure 2 This is a side view of the bomb loading and dropping pylon of this utility model used for drone firefighting operations.

[0016] In the diagram: 1. Fixing plate; 2. Motor bracket; 3. Drive plate; 4. Motor turntable; 5. Hook shaft fixing nut; 6. First bearing; 7. Second bearing; 8. Hook bracket; 9. Hook shaft; 10. Baffle; 11. Rope clip; 12. Hook; 13. Notch; 14. Slot; 15. Detailed Implementation

[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0018] like Figure 1 and 2 As shown, Figure 2 The image shows the state when the motor is not connected to the hook shaft fixing nut. A bomb loading and dropping bracket for UAV fire fighting includes a fixed plate 1, a hook bracket 9 below the fixed plate 1, a hook shaft 10 rotatably connected to the hook bracket 9, and a hook 13 with a certain arc at the front end of the hook shaft 10. The hook shaft 10 is driven to rotate by a motor 4 located at the rear end of the fixed plate 1. The rotation of the hook shaft 10 causes the hook 13 to be curved upward or downward to lock the bomb loading or release the bomb dropping.

[0019] By using a motor to drive the hook shaft to rotate, and cleverly changing the direction of the hook's curvature, the mounting, locking, and dropping of fire extinguishing bombs are completed simply and efficiently. Compared to traditional, complex locking and dropping structures, this simplifies the operation process, improves operational efficiency, and features a simple mechanical structure, high reliability, and adaptability to the complex environment of drone firefighting operations. It ensures that the fire extinguishing bombs are securely mounted during flight and accurately released during dropping. The bottom of the arc of the hook 13 is flush with the side of the cylinder of the hook shaft 10, and the top of the arc of the hook 13 protrudes from the other side of the cylinder of the hook 10 to form a hook.

[0020] This structural design allows the hook to reliably engage with the fire extinguishing grenade's fitting structure, such as the hanging ring on the grenade body, during rotation, achieving a secure lock. When the grenade needs to be released, the hook faces downwards after rotation, allowing the fire extinguishing grenade to detach smoothly. The flat bottom ensures minimal interference with surrounding components during hook shaft rotation, resulting in smooth movement and improving the overall rationality and practicality of the hook and hook shaft structure, thus enhancing the stability of the mounting and locking mechanism.

[0021] The aforementioned fixing plate 1 is provided with a baffle 11. The lower end of the baffle 11 is provided with a notch 14 that faces the protruding end of the hook 13. The front end of the baffle 11 is provided with a rounded corner for easy insertion.

[0022] The baffle 11 serves as an auxiliary limit and protection. The notch 14 provides room for the hook of the hook 13 to move, ensuring that the hook can properly cooperate with or release the fire extinguishing bomb when rotating; the rounded corner at the front end facilitates the smooth insertion of the fire extinguishing bomb's mounting structure into the space between the hook and the baffle during the installation of the fire extinguishing bomb, guiding the fire extinguishing bomb into position quickly and accurately, improving the convenience and accuracy of the loading operation, reducing loading time, and meeting the emergency needs of firefighting operations. The motor 4 is fixedly connected to the motor bracket 2, and the top of the motor bracket 2 is fixedly connected to the fixing plate 1.

[0023] The motor bracket 2 establishes a stable connection between the motor 4 and the fixed plate 1, enabling the motor to maintain a stable posture during operation. This prevents the connection between the motor and other components from becoming loose due to vibration or other factors, ensuring the stability and reliability of the motor's drive on the hook shaft 10. Consequently, it ensures the overall working stability of the gantry and provides stable power support for the mounting and dropping of fire extinguishing bombs. The rear end of the aforementioned hook shaft 10 passes through the hook bracket 9 and is connected to the hook shaft fixing nut 6. The end of the motor 4 shaft is provided with a motor turntable 5, which is connected to the hook shaft fixing nut 6.

[0024] This connection method enables reliable transmission between the motor 4 and the hook shaft 10. The hook shaft fixing nut 6 not only fixes the position of the hook shaft 10, but also connects with the motor turntable 5 to stably transmit the rotational power of the motor to the hook shaft 10, ensuring the efficiency and accuracy of power transmission. This allows the hook shaft 10 to rotate precisely according to the motor's drive commands, achieving precise locking and release of the fire extinguishing bomb by the hook 13.

[0025] The motor bracket 2 is provided with a drive plate 3 at its lower end. The drive plate 3 is electrically connected to the motor 4. The drive plate 3 is provided with components for communicating with the UAV. The drive plate 3 is used to control the reciprocating rotation of the motor 4.

[0026] As the core control component, the drive board 3 can communicate with the drone to receive instructions from the drone and achieve remote control, allowing operators to flexibly and promptly control the bomb-dropping action according to the fire situation. On the other hand, it precisely controls the reciprocating rotation of the motor 4 to ensure the accuracy of the rotation angle of the hook shaft 10, so that the hook 13 can accurately complete the action switching between loading and locking the bomb and releasing the bomb, improving the intelligence and precision of the entire hoist operation and adapting to the remote and precise operation requirements of drone fire fighting.

[0027] The hook 13 described above has a concave groove 15 on its arc. The end of the groove 15 is provided with a rope clip 12 connected by an elastic component. In its natural state, the rope clip 12 closes the opening of the groove 15. The groove 15 and the rope clip 12 are used to lift heavy objects.

[0028] This structure expands the functionality of the lifting frame, enabling it not only to be used for dropping fire extinguishing bombs but also, when necessary, to assist in lifting heavy objects such as small rescue supplies during firefighting operations. The groove 15 is used to accommodate lifting ropes, and the rope clamp 12, under the action of elastic components, closes the opening to prevent accidental rope slippage, ensuring the safety and reliability of the lifting process. This enhances the multifunctionality and practicality of the lifting frame, increasing its application value in firefighting operations and related scenarios.

[0029] The aforementioned motor 4 is a stepper motor, and the motor 4 is controlled by the drive board 3 to perform 180-degree reciprocating rotation.

[0030] Stepper motors are characterized by high control precision and fast response speed. The drive board 3 controls its 180-degree reciprocating rotation, which can precisely control the rotation angle of the hook shaft 10, enabling the hook 13 to accurately switch between locking the fire extinguishing bomb with the arc facing upward and releasing the fire extinguishing bomb with the arc facing downward. This ensures the accuracy and timeliness of the bomb-dropping action, meeting the requirements of drone firefighting operations for bomb-dropping accuracy and efficiency. Furthermore, the characteristics of stepper motors make the entire control process stable and reliable, reducing action errors. Working principle: This bomb-loading and dropping pyrotechnic device, designed for drone-based firefighting operations, is powered by a stepper motor (4). A drive board (3) receives commands from the drone and controls the motor (4) to rotate 180 degrees. The rotational power of the motor (4) is transmitted to the hook shaft (10) via a motor turntable (5) and a hook shaft fixing nut (6), causing the hook shaft (10) to rotate around its own axis, which in turn rotates the hook (13) at its front end, which has a certain arc. When the hook (13) is curved upwards, its protruding hook engages with a baffle (11) to securely lock the fire extinguishing bomb onto the pyrotechnic device, achieving bomb loading and locking. When bombs need to be dropped, the motor (4) drives the hook shaft (10) to rotate 180 degrees, the hook (13) is curved downwards, the fire extinguishing bomb loses its lock, and releases under gravity, completing the dropping action. Furthermore, if extended for lifting heavy objects, the groove (15) on the curved hook (13) can accommodate ropes, and a rope clamp (12) ensures the ropes do not fall off, achieving the lifting function. The entire process, through the ingenious cooperation of various components, achieves simple, efficient, and precise fire extinguishing bomb loading and dropping operations, as well as multi-functional extended applications, adapting to the actual needs of drone firefighting operations.

Claims

1. A bomb loading and dropping pylon for unmanned aerial vehicle (UAV) firefighting operations, characterized in that: Includes a fixed plate (1), a hook bracket (9) is provided below the fixed plate (1), a hook shaft (10) is rotatably connected to the hook bracket (9), a hook (13) with a certain arc is provided at the front end of the hook shaft (10), the hook shaft (10) is driven to rotate by a motor (4) located at the rear end of the fixed plate (1), the rotation of the hook shaft (10) causes the hook (13) to be curved upward or downward to achieve upper locking or lower release.

2. The bomb loading and dropping pylon for UAV firefighting operations according to claim 1, characterized in that, The bottom of the arc of the hook (13) is flush with the side of the cylinder of the hook shaft (10), and the top of the arc of the hook (13) protrudes from the other side of the cylinder of the hook (10) to form a hook part.

3. The bomb loading and dropping pylon for UAV firefighting operations according to claim 2, characterized in that, The fixing plate (1) is provided with a baffle (11), the lower end of the baffle (11) is provided with a notch (14) facing the protruding end of the hook (13), and the front end of the baffle (11) is provided with a rounded corner for easy insertion.

4. A bomb loading and dropping pylon for unmanned aerial vehicle (UAV) firefighting operations according to claim 3, characterized in that, The motor (4) is fixedly connected to the motor bracket (2), and the top of the motor bracket (2) is fixedly connected to the fixing plate (1).

5. A bomb loading and dropping pylon for unmanned aerial vehicle (UAV) firefighting operations according to claim 4, characterized in that, The rear end of the hook shaft (10) passes through the hook bracket (9) and is connected to the hook shaft fixing nut (6). The end of the motor (4) shaft is provided with a motor turntable (5) which is connected to the hook shaft fixing nut (6).

6. A bomb loading and dropping pylon for unmanned aerial vehicle (UAV) firefighting operations according to claim 5, characterized in that, The motor bracket (2) is provided with a drive plate (3) at the lower end. The drive plate (3) is electrically connected to the motor (4). The drive plate (3) is provided with components for communicating with the UAV. The drive plate (3) is used to control the reciprocating rotation of the motor (4).

7. A bomb loading and dropping pylon for unmanned aerial vehicle (UAV) firefighting operations according to claim 6, characterized in that, The hook (13) has a concave groove (15) on its arc. The end of the groove (15) is provided with a rope clip (12) connected by an elastic component. In its natural state, the rope clip (12) closes the opening of the groove (15). The groove (15) and the rope clip (12) are used to lift heavy objects.

8. A bomb loading and dropping pylon for unmanned aerial vehicle (UAV) firefighting operations according to claim 6, characterized in that, The motor (4) is a stepper motor, and the motor (4) is controlled by the drive board (3) to perform 180-degree reciprocating rotation.

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