A multi-rotor drone

Abstract

This utility model discloses a multi-rotor drone, relating to the field of drone technology. It includes a drone with multiple first support rods equidistantly mounted around its periphery. A connecting block is fixed to the other end of each first support rod, and a hinge block is hinged to the other end of each connecting block. A second support rod is fixed to one side of the hinge block, and a rotor base is mounted to the other end of the second support rod. A disassembly mechanism is mounted on the connecting block, and a limit block is also mounted on the connecting block, with a limit mechanism installed inside the limit block. This utility model, through the cooperation of the positioning block, locking block, first inclined section, and second inclined section, facilitates the release of the limit on the hinge block. Furthermore, the limit lever can be used to release the limit hook from the hinge block, achieving rapid folding of components such as the rotor base, mounting frame, and helicopter blades. Ultimately, it solves the problem of the large footprint of multi-rotor drone rotors during storage.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a multi-rotor UAV. Background Technology

[0002] With the rapid development of the low-altitude economy, multi-rotor drones, with their advantages of simple structure, flexible take-off and landing, and stable hovering, have become core equipment in fields such as aerial surveying and mapping, agricultural plant protection, power line inspection, logistics distribution, and emergency rescue. Compared with fixed-wing drones, multi-rotor drones do not require dedicated runways, can take off and land vertically in narrow spaces, and can achieve long-term hovering operations, greatly expanding the application scenarios of drones. For example, in the agricultural field, multi-rotor drones can carry plant protection agents and spray them precisely according to the crop growth conditions; in emergency rescue, they can quickly reach the disaster site and transmit real-time images through onboard high-definition cameras, thermal imagers, and other equipment, providing data support for rescue decision-making. However, current multi-rotor drones still face many technical bottlenecks in practical applications, making it difficult to meet the needs of efficient and stable operation in complex scenarios. Traditional multi-rotor drones often require a large space for storage due to the limitations of the rotor structure. This not only brings great inconvenience to carrying and storing, but also makes it difficult to achieve effective storage in some space-limited scenarios. Therefore, the above problems need to be improved. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multi-rotor unmanned aerial vehicle (UAV).

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a multi-rotor unmanned aerial vehicle (UAV), comprising a UAV, wherein a plurality of first support rods are equidistantly installed on the periphery of the UAV, a connecting block is fixedly connected to the other end of the first support rod, a hinge block is hinged to the other end of the connecting block, a second support rod is fixedly connected to one side of the hinge block, a rotor base is installed at the other end of the second support rod, a disassembly mechanism is installed on the connecting block, and a limit block is installed on the connecting block, with a limit mechanism installed inside the limit block.

[0005] Preferably, a motor is installed inside the rotor base, the upper end of the motor's output shaft passes through the rotor base and is fixedly connected to a mounting bracket, and helicopter blades are installed at both ends of the mounting bracket.

[0006] Preferably, the limiting mechanism includes an installation groove formed inside the limiting block and a T-shaped positioning block inserted into the installation groove. The lower end of the positioning block has a first inclined section, and both sides of the lower end of the positioning block are provided with locking blocks. The lower end of the locking block is fixedly connected with a card block, and the upper end of the card block has a second inclined section that matches the first inclined section. Multiple equidistant springs are connected between the locking block and the inner wall of the installation groove.

[0007] Preferably, a positioning rod is inserted into one end of the locking block, and two L-shaped sliding grooves are opened at one end of the limiting block. The positioning rod is located at one end of the sliding groove, and rubber damping strips are installed on the two inner walls of the other end of the sliding groove.

[0008] Preferably, the disassembly mechanism includes a limiting rod fixed to one side of the positioning block, a U-shaped mounting block fixed to the other end of the limiting rod, ear plates rotatably connected to both sides of the U-shaped mounting block, a U-shaped limiting rod installed on the two ear plates, and a fixing rod hinged to the inner side of one end of the U-shaped mounting block, the other end of the fixing rod being fixed to one side of the connecting block.

[0009] Preferably, two limiting hooks are fixedly connected to one side of the hinge block, and one end of the limiting rod is located inside the limiting hooks.

[0010] Compared with the prior art, the beneficial effects of this utility model are: by cooperating with the positioning block, locking block, first inclined section and second inclined section, this utility model facilitates the release of the limit on the hinge block, and then the limit rod can be used to release the limit hook on the hinge block, realizing the quick folding function of components such as rotor base, mounting frame and helicopter blades, and finally solving the problem of large footprint when storing multi-rotor UAV rotors. Attached Figure Description

[0011] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall appearance of the device proposed in this utility model; Figure 2 This is a schematic diagram of the rotor base structure proposed in this utility model; Figure 3 This is a schematic diagram of the disassembly mechanism proposed in this utility model; Figure 4 This is a schematic diagram of the limiting mechanism structure proposed in this utility model; Figure 5 This is a schematic cross-sectional view of the limiting mechanism proposed in this utility model; Figure 6 This is a schematic diagram of the limiting tie rod structure proposed in this utility model.

[0012] The numbers in the diagram are: 1. UAV; 2. Connecting block; 3. Rotor base; 4. Mounting bracket; 5. Helicopter blade; 6. Limiting block; 7. Positioning block; 8. Locking block; 9. Positioning rod; 10. Spring; 11. Rubber damping strip; 12. Limiting rod; 13. U-shaped mounting block; 14. Limiting rod; 15. Fixing rod; 16. Hinge block; 17. Limiting hook. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0014] Example: See Figures 1 to 6 This utility model discloses a multi-rotor drone, comprising a drone 1. Multiple first support rods are equidistantly mounted around the drone 1. A connecting block 2 is fixed to the other end of each first support rod, facilitating the installation of a limiting mechanism and a disassembly mechanism. A hinge block 16 is hinged to the other end of each connecting block 2, allowing the rotor base 3 to be rotated inwards for storage. A second support rod is fixed to one side of the hinge block 16, with the rotor base 3 mounted at the other end, facilitating the installation of a mounting frame 4 and helicopter blades 5. A disassembly mechanism is mounted on the connecting block 2, and a limiting block 6 is also mounted on the connecting block 2, containing a limiting mechanism. A motor is installed inside the rotor base 3, with the upper end of the motor's output shaft passing through the rotor base 3 and fixedly connected to the mounting frame 4, facilitating the installation of helicopter blades 5. Helicopters 5 are mounted at both ends of the mounting frame 4. The lifting blade 5 and the limiting mechanism include an installation groove inside the limiting block 6 and a T-shaped positioning block 7 inserted into the installation groove. The positioning block 7 facilitates the locking block 8 to prevent the limiting rod 12 from shaking. The lower end of the positioning block 7 has a first inclined section, and locking blocks 8 are provided on both sides of the lower end of the positioning block 7. The lower end of the locking block 8 is fixed with a locking block, and the upper end of the locking block has a second inclined section that matches the first inclined section. Multiple equidistant springs 10 are connected between the locking block 8 and the inner wall of the installation groove. The springs 10 facilitate the locking block 8 to reset and be limited by the positioning block 7. A positioning rod 9 is inserted into one end of the locking block 8, which facilitates the manual movement of the locking block 8. The limiting block 6 has two L-shaped sliding grooves at one end, and the positioning rod 9 is located at one end of the sliding groove. Rubber damping strips 11 are installed on the two inner walls of the other end of the sliding groove, which facilitate the limiting of the positioning rod 9.

[0015] In this utility model, the disassembly mechanism includes a limiting rod 12 fixedly connected to one side of the positioning block 7. Pulling the limiting rod 12 facilitates the release of the limiting hook 17, thereby allowing the hinge block 16 to rotate. The other end of the limiting rod 12 is fixedly connected to a U-shaped mounting block 13. The U-shaped mounting block 13 facilitates the rotation of the fixing rod 15 to limit the hinge block 16. Both sides of the U-shaped mounting block 13 are rotatably connected to ear plates. U-shaped limiting rods 14 are installed on the two ear plates. A fixing rod 15 is hinged to the inner side of one end of the U-shaped mounting block 13. The other end of the fixing rod 15 is fixedly connected to one side of the connecting block 2. Two limiting hooks 17 are fixedly connected to one side of the hinge block 16. The limiting hooks 17 prevent the second support rod from rotating. One end of the limiting rod 14 is located inside the limiting hook 17.

[0016] Working principle: When using this utility model, first move the positioning rod 9 to the other end of the slide. At this time, the moving rod is limited by the rubber damping strip 11. When the positioning rod 9 moves, it will drive the locking block 8 to move to both sides, and at the same time squeeze the spring 10. At this time, the locking block 8 and the positioning block 7 are released from the limit. Then pull the limit rod 12. The limit rod 12 moves upward and drives the positioning block 7 to move upward. The U-shaped mounting block 13 moves accordingly, which in turn drives the U-shaped limit rod 14 to disengage from the limit hook 17, releasing the limit on the hinge block 16. Then, the hinge block 16 can be rotated around the connecting block 2, so that the second support rod, rotor base 3, mounting frame 4 and helicopter blade 5 and other components are directed towards the UAV 1. The folding mechanism significantly reduces the floor space required for storage. When unfolding for use, first reset the two positioning rods 9, then unfold the folded parts to restore the hinge block 16 to its original position. Then push the limiting rod 12 to move the positioning block 7 downward. The first inclined section at the lower end of the positioning block 7 will contact the second inclined section of the locking block 8, squeezing the locking block 8 to move to both sides. After the bottom of the positioning block 7 passes the locking block 8, the spring 10 pushes the locking block 8 to reset, limiting the positioning block 7 and re-limiting the hinge block 16. At the same time, the U-shaped limiting rod 14 will also re-engage in the limiting hook 17, ensuring that the connection of each component is stable and reliable during the flight of the UAV 1.

[0017] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A multi-rotor unmanned aerial vehicle (UAV), comprising a UAV (1), characterized in that: The UAV (1) has multiple first support rods installed at equal intervals around its periphery. A connecting block (2) is fixed to the other end of the first support rod. A hinge block (16) is hinged to the other end of the connecting block (2). A second support rod is fixed to one side of the hinge block (16). A rotor base (3) is installed at the other end of the second support rod. A disassembly mechanism is installed on the connecting block (2), and a limit block (6) is installed on the connecting block (2). A limit mechanism is installed inside the limit block (6).

2. The multi-rotor unmanned aerial vehicle according to claim 1, characterized in that: The rotor base (3) is equipped with a motor. The upper end of the output shaft of the motor passes through the rotor base (3) and is fixedly connected to the mounting bracket (4). Both ends of the mounting bracket (4) are equipped with helicopter blades (5).

3. A multi-rotor unmanned aerial vehicle according to claim 2, characterized in that: The limiting mechanism includes an installation groove inside the limiting block (6) and a T-shaped positioning block (7) inserted into the installation groove. The lower end of the positioning block (7) is provided with a first inclined section, and both sides of the lower end of the positioning block (7) are provided with locking blocks (8). The lower end of the locking block (8) is fixed with a card block, and the upper end of the card block is provided with a second inclined section that matches the first inclined section. Multiple equidistant springs (10) are connected between the locking block (8) and the inner wall of the installation groove.

4. A multi-rotor unmanned aerial vehicle according to claim 3, characterized in that: One end of the locking block (8) is connected to a positioning rod (9), and one end of the limiting block (6) has two L-shaped grooves. The positioning rod (9) is located at one end of the groove, and rubber damping strips (11) are installed on the two inner walls of the other end of the groove.

5. A multi-rotor unmanned aerial vehicle according to claim 3, characterized in that: The disassembly mechanism includes a limiting rod (12) fixed to one side of the positioning block (7), and a U-shaped mounting block (13) fixed to the other end of the limiting rod (12). Both sides of the U-shaped mounting block (13) are rotatably connected to ear plates. A U-shaped limiting rod (14) is installed on the two ear plates. A fixing rod (15) is hinged to the inner side of one end of the U-shaped mounting block (13). The other end of the fixing rod (15) is fixed to one side of the connecting block (2).

6. A multi-rotor unmanned aerial vehicle according to claim 5, characterized in that: Two limiting hooks (17) are fixed to one side of the hinge block (16), and one end of the limiting rod (14) is located inside the limiting hook (17).

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