A delivery device for unmanned aerial vehicles with automatic unhooking function

Abstract

This utility model discloses a drone delivery device with an automatic unhooking function, including a drone body. A landing gear is fixedly connected to the surface of the drone body, and a slot is opened on the bottom surface of the drone body. A hook cable is attached to the inner wall of the slot, and a collar is fixedly connected to the surface of the hook cable. The hook cable is passed through the target material for hoisting. The drone body is started to transport the material to the delivery point. The drive component is activated to drive the anti-detachment mechanism to flip forward and detach from the drone body, thereby unlocking the hook cable. At the same time, the unhooking component is activated to move and detach from the collar to release the limit, and the material can be airdropped. The reeling mechanism is activated to reel in the hook cable for centralized storage. This achieves the goal of facilitating the automatic reeling of the hook cable of the delivery device, avoiding the problem that the hook cable of existing delivery devices is difficult to store after unhooking and airdrop, which can easily affect the flight safety of the drone.

Description

Technical Field

[0001] This utility model relates to the field of civilian unmanned aerial vehicle (UAV) technology, and in particular to a UAV delivery device with an automatic unhooking function. Background Technology

[0002] Civilian drones are aircraft that do not require a pilot to board and fly remotely or autonomously. They are widely used in aerial photography, agricultural plant protection, logistics distribution, and emergency rescue. When drones are used for emergency rescue and other tasks, they need to be equipped with delivery devices to airdrop supplies.

[0003] Currently available delivery devices cannot automatically retrieve the grappling hook after delivery. The grappling hook is usually suspended below the drone, and its length is often quite long. Therefore, during the drone's return flight, the grappling hook is prone to colliding with other objects, causing the drone to lose balance and fall, which greatly reduces the safety of drone use. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a drone delivery device with an automatic unhooking function to solve the aforementioned problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A drone delivery device with automatic unhooking function includes a drone body, a landing gear fixedly connected to the surface of the drone body, a slot on the bottom surface of the drone body, a hook cable attached to the inner wall of the slot, a collar fixedly connected to the surface of the hook cable, a fixing ring fixedly connected to the front surface of the drone body, a drive shaft rotatably connected to the inner wall of the fixing ring, an anti-detachment mechanism on the surface of the drive shaft, a drive assembly on the top surface of the drone body, a winding mechanism on the top surface of the drone body, and an unhooking assembly on the top surface of the drone body.

[0007] Preferably, the anti-detachment mechanism consists of a connecting frame and an anti-detachment hook plate. The inner wall of the connecting frame is fixedly connected to the surface of the transmission shaft, and the anti-detachment hook plate is fixedly connected to the back of the connecting frame, and the anti-detachment hook plate overlaps with the inner wall of the drone body.

[0008] Preferably, the drive assembly consists of a first servo motor, a worm gear, and a worm wheel. The first servo motor is fixedly connected to the top surface of the UAV body, the worm gear is fixedly connected to the output end of the first servo motor, and the inner wall of the worm wheel is fixedly connected to the surface of the transmission shaft, with the worm wheel meshing with the worm gear.

[0009] Preferably, the winding mechanism consists of a fixed frame, a second servo motor, a fixed shaft, and a winding wheel. The fixed frame is fixedly connected to the top surface of the UAV body, the second servo motor is fixedly connected to the front surface of the fixed frame, and the output end of the second servo motor is rotatably connected to the inner wall of the fixed frame. The fixed shaft is rotatably connected to the inner wall of the fixed frame, and the fixed shaft is fixedly connected to the output end of the second servo motor. The inner wall of the winding wheel is fixedly connected to the surface of the fixed shaft.

[0010] Preferably, the unhooking assembly consists of a fixed base, an electric push rod, a connecting shaft, and a limiting ring. The fixed base is fixedly connected to the top surface of the drone body, the electric push rod is fixedly connected to the inner wall of the fixed base, the connecting shaft is fixedly connected to the output end of the electric push rod, and the connecting shaft is slidably connected to the inner wall of the ring. The limiting ring is fixedly connected to the top surface of the drone body, and the inner wall of the limiting ring is slidably connected to the surface of the connecting shaft.

[0011] Preferably, there are multiple landing gears, and the multiple landing gears are symmetrically arranged with the vertical center line on the left side of the UAV body as the axis of symmetry.

[0012] Preferably, the anti-detachment hook plate is rectangular in shape and is made of metal.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This drone delivery device with automatic unhooking function allows the hook to pass through the target material for hoisting operations. Starting the drone body allows the material to be transported to the delivery point. Activating the drive component drives the anti-detachment mechanism forward to flip and detach from the drone body, thus unlocking the hook. Simultaneously, activating the unhooking component moves to release the detachment ring and remove the limit, allowing the material to be airdropped. Activating the reel mechanism allows the hook to be wound up for centralized storage. This achieves the goal of facilitating the automatic reeling of the hook of the delivery device, avoiding the problem of existing delivery devices where the hook is difficult to store after unhooking and airdrop, which could easily affect the flight safety of the drone. Attached Figure Description

[0014] Figure 1 This is an isometric drawing of the structure of this utility model;

[0015] Figure 2 This is an enlarged view of the structure at point A of this utility model;

[0016] Figure 3 This is a right sectional view of the structure of this utility model;

[0017] Figure 4 This is an enlarged view of the structure at point B of this utility model;

[0018] Figure 5 This is a rear sectional view of the structure of this utility model;

[0019] Figure 6 This is an enlarged view of the structure at point C of this utility model.

[0020] In the diagram: 1. UAV body; 2. Landing gear; 3. Slot; 4. Hook; 5. Loop; 6. Fixing ring; 7. Drive shaft; 8. Connecting frame; 9. Anti-detachment hook plate; 10. First servo motor; 11. Worm gear; 12. Worm wheel; 13. Fixing frame; 14. Second servo motor; 15. Fixing shaft; 16. Reel; 17. Fixing base; 18. Electric push rod; 19. Connecting shaft; 20. Limiting ring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example: Refer to Figure 1-6A drone delivery device with automatic unhooking function includes a drone body 1. Multiple landing gears 2 are fixedly connected to the surface of the drone body 1, symmetrically arranged about the vertical center line on the left side of the drone body 1 to assist the drone body 1 in takeoff and landing, improving stability. A slot 3 is provided on the bottom surface of the drone body 1, with a hook 4 attached to the inner wall of the slot 3. A collar 5 is fixedly connected to the surface of the hook 4. A fixing ring 6 is fixedly connected to the front of the drone body 1, with a drive shaft 7 rotatably connected to the inner wall of the fixing ring 6. An anti-detachment mechanism is provided on the surface of the drive shaft 7. A drive assembly and a winding mechanism are provided on the top surface of the drone body 1. The winding mechanism consists of a fixed frame 13, a second servo motor 14, a fixed shaft 15, and a winding wheel 16. The fixed frame 13 is fixedly connected to the top surface of the drone body 1, and the second servo motor 14 is fixedly connected to the fixed frame 13. The front is fixedly connected, and the output end of the second servo motor 14 is rotatably connected to the inner wall of the fixed frame 13. The fixed shaft 15 is rotatably connected to the inner wall of the fixed frame 13, and the fixed shaft 15 is fixedly connected to the output end of the second servo motor 14. The inner wall of the winding wheel 16 is fixedly connected to the surface of the fixed shaft 15 for automatic winding of the hook 4, which is convenient for storage. The top surface of the drone body 1 is provided with a hook release assembly, which consists of a fixed base 17, an electric push rod 18, a connecting shaft 19, and a limiting ring 20. The fixed base 17 is fixedly connected to the top surface of the drone body 1. The electric push rod 18 is fixedly connected to the inner wall of the fixed base 17. The connecting shaft 19 is fixedly connected to the output end of the electric push rod 18, and the connecting shaft 19 is slidably connected to the inner wall of the collar 5. The limiting ring 20 is fixedly connected to the top surface of the drone body 1, and the inner wall of the limiting ring 20 is slidably connected to the surface of the connecting shaft 19, which is used to release the limitation on the hook 4, which is convenient for automatic hook release and airdrop.

[0023] Specifically, the anti-detachment mechanism consists of a connecting frame 8 and an anti-detachment hook plate 9. The anti-detachment hook plate 9 is rectangular and made of metal. The metal anti-detachment hook plate 9 has higher strength, is less prone to deformation and damage under stress, and is more durable. The inner wall of the connecting frame 8 is fixedly connected to the surface of the drive shaft 7, and the anti-detachment hook plate 9 is fixedly connected to the back of the connecting frame 8. The anti-detachment hook plate 9 overlaps with the inner wall of the drone body 1 to lock the hook cable 4, preventing the goods from swinging significantly during flight and improving transportation stability.

[0024] Specifically, the drive assembly consists of a first servo motor 10, a worm gear 11, and a worm wheel 12. The first servo motor 10 is fixedly connected to the top surface of the UAV body 1, the worm gear 11 is fixedly connected to the output end of the first servo motor 10, and the inner wall of the worm wheel 12 is fixedly connected to the surface of the transmission shaft 7. The worm wheel 12 meshes with the worm gear 11 and is used to drive the anti-detachment mechanism to rotate, so as to facilitate the automatic locking and unlocking of the hook 4.

[0025] In use: First, the hook 4 is passed through the target material for hoisting. The main body of the drone 1 is started to carry the material for transportation. When it reaches the target drop point, the first servo motor 10 is started to drive the worm gear 11 to rotate. Through the meshing of the worm gear 11 and the worm wheel 12, the transmission shaft 7 is driven to rotate along the inner wall of the fixed ring 6. The rotation of the transmission shaft 7 drives the connecting frame 8 and the anti-detachment hook plate 9 to flip forward and detach from the main body of the drone 1, thus unlocking the hook 4. At the same time, the electric push rod 18 is started to drive the connecting shaft 19 to move to the left. Through the movement of the connecting shaft 19 and the limiting ring 20, the connecting shaft 19 can slide off the collar 5 and release the limit. After the limit is released, the material will fall naturally and detach from the hook 4. After the material is dropped, the second servo motor 14 is started to drive the fixed shaft 15 to rotate along the inner wall of the fixed frame 13. The rotation of the fixed shaft 15 drives the winding wheel 16 to rotate, thus winding up the hook 4 for centralized storage.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A delivery device for a drone with automatic unhooking function, comprising a drone main body (1), characterized in that, The drone body (1) is fixedly connected to a landing gear (2). The bottom surface of the drone body (1) is provided with a slot (3). A hook (4) is attached to the inner wall of the slot (3). A collar (5) is fixedly connected to the surface of the hook (4). A fixing ring (6) is fixedly connected to the front of the drone body (1). A drive shaft (7) is rotatably connected to the inner wall of the fixing ring (6). An anti-detachment mechanism is provided on the surface of the drive shaft (7). A drive assembly is provided on the top surface of the drone body (1). A winding mechanism is provided on the top surface of the drone body (1). A hook release assembly is provided on the top surface of the drone body (1).

2. The unmanned aerial vehicle delivery device with automatic unhooking function according to claim 1, characterized in that, The anti-detachment mechanism consists of a connecting frame (8) and an anti-detachment hook plate (9). The inner wall of the connecting frame (8) is fixedly connected to the surface of the transmission shaft (7), and the anti-detachment hook plate (9) is fixedly connected to the back of the connecting frame (8). The anti-detachment hook plate (9) overlaps with the inner wall of the drone body (1).

3. The unmanned aerial vehicle delivery device with automatic unhooking function according to claim 1, characterized in that, The drive assembly consists of a first servo motor (10), a worm (11) and a worm wheel (12). The first servo motor (10) is fixedly connected to the top surface of the UAV body (1). The worm (11) is fixedly connected to the output end of the first servo motor (10). The inner wall of the worm wheel (12) is fixedly connected to the surface of the transmission shaft (7), and the worm wheel (12) meshes with the worm (11).

4. The unmanned aerial vehicle delivery device with automatic unhooking function according to claim 1, characterized in that, The winding mechanism consists of a fixed frame (13), a second servo motor (14), a fixed shaft (15), and a winding wheel (16). The fixed frame (13) is fixedly connected to the top surface of the UAV body (1). The second servo motor (14) is fixedly connected to the front of the fixed frame (13), and the output end of the second servo motor (14) is rotatably connected to the inner wall of the fixed frame (13). The fixed shaft (15) is rotatably connected to the inner wall of the fixed frame (13), and the fixed shaft (15) is fixedly connected to the output end of the second servo motor (14). The inner wall of the winding wheel (16) is fixedly connected to the surface of the fixed shaft (15).

5. The unmanned aerial vehicle delivery device with automatic unhooking function according to claim 1, characterized in that, The unhooking assembly consists of a fixed base (17), an electric push rod (18), a connecting shaft (19), and a limiting ring (20). The fixed base (17) is fixedly connected to the top surface of the UAV body (1). The electric push rod (18) is fixedly connected to the inner wall of the fixed base (17). The connecting shaft (19) is fixedly connected to the output end of the electric push rod (18), and the connecting shaft (19) is slidably connected to the inner wall of the collar (5). The limiting ring (20) is fixedly connected to the top surface of the UAV body (1), and the inner wall of the limiting ring (20) is slidably connected to the surface of the connecting shaft (19).

6. A delivery device for a drone with automatic unhooking function according to claim 1, characterized in that, The number of landing gears (2) is multiple, and the multiple landing gears (2) are symmetrically arranged with the vertical center line on the left side of the UAV body (1) as the axis of symmetry.

7. A delivery device for a drone with automatic unhooking function according to claim 2, characterized in that, The anti-detachment hook plate (9) is rectangular and made of metal.

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