Multi-rotor unmanned aerial vehicle with variable lift force structure

Abstract

The multi-rotor unmanned aerial vehicle with the variable lift force structure comprises a vehicle body, a fixed bottom plate is fixedly connected to the bottom face of the vehicle body, installation inserting grooves are formed in the two side faces of the fixed bottom plate, installation inserting plates are connected into the installation inserting grooves in a sliding mode, and the installation inserting plates are connected with the installation inserting grooves in a limiting mode through positioning mechanisms. A mounting plate is fixedly connected to one side face of the mounting insertion plate, two supporting frames are fixedly connected to one side face of the mounting plate, a connecting plate is fixedly connected to the lower ends of the supporting frames, and a buffering mechanism is arranged below the connecting plate. According to the multi-rotor unmanned aerial vehicle with the variable lift force structure, the supporting frame can be conveniently disassembled by a subsequent worker, so that the overall area of the unmanned aerial vehicle is effectively reduced, the subsequent storage of the unmanned aerial vehicle is facilitated, and the multi-rotor unmanned aerial vehicle is relatively practical.

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 with a variable lift structure. Background Technology

[0002] Drones can effectively utilize advanced core technologies such as artificial intelligence, autonomous driving, and signal processing. Due to their advantages such as small size, long range, and unmanned operation, they are now widely used in the military field, as well as in photography, reconnaissance, toys, and other fields.

[0003] The patent document with publication number CN218559161U discloses a multi-rotor drone with detachable rotors, including a body. Several fixing posts are fixedly connected to the outer surface of the body, and the ends of the fixing posts away from the body are fixedly connected to a connecting mechanism by screws.

[0004] However, the existing technology has its shortcomings. The support frame in the existing technology is fixedly installed on the lower end of the mounting plate, so the support frame cannot be disassembled, which increases the overall area of ​​the drone and is not conducive to the subsequent storage of the drone. To this end, we propose a multi-rotor drone with a variable lift structure. Utility Model Content

[0005] This invention provides a multi-rotor unmanned aerial vehicle with a variable lift structure, which solves the technical problems mentioned in the background art.

[0006] The solution of this utility model to solve the above-mentioned technical problems is as follows: It includes a body, a fixed base plate is fixedly connected to the bottom surface of the body, and mounting slots are opened on both sides of the fixed base plate. A mounting plate is slidably connected inside the mounting slot. The mounting plate is limited to the mounting slot through a positioning mechanism. A mounting plate is fixedly connected to one side of the mounting plate. Two support frames are fixedly connected to one side of the mounting plate. A connecting plate is fixedly connected to the lower end of the support frame. A buffer mechanism is provided below the connecting plate.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, a camera is fixedly connected to the middle of the lower end face of the fixed base plate, and multiple robotic arms are connected to the body.

[0009] Furthermore, each of the aforementioned arms is connected to a propeller, and each of the aforementioned arms is equipped with a variable lift structure, wherein the propeller is driven to rotate by a fuel engine.

[0010] Furthermore, the buffer mechanism includes a shock-absorbing plate disposed below the connecting plate, and two slide rods that both penetrate the connecting plate and are slidably connected to the upper surface of the shock-absorbing plate.

[0011] Furthermore, a limiting circular plate is fixedly connected to the upper end of the slide rod, and a buffer spring is sleeved on the surface of the slide rod, with its two ends fixedly connected to the upper surface of the shock absorber plate and the lower surface of the connecting plate, respectively.

[0012] Furthermore, the positioning mechanism includes a U-shaped plate fixedly connected to the lower end face of the fixed base plate, and a positioning plate that penetrates the fixed base plate and is slidably connected to the penetration portion is provided inside the U-shaped plate.

[0013] Furthermore, the positioning plate is slidably connected to the positioning groove formed on the surface of the mounting plate, the positioning plate has a threaded groove inside, and the U-shaped plate has limit grooves on both sides inside.

[0014] Furthermore, the limiting slide groove is slidably connected to a limiting slider that is fixedly connected to the positioning plate, and the threaded groove is threadedly connected to a threaded rod that passes through the U-shaped plate and is rotatably connected to the through part via a bearing. One end of the threaded rod is fixedly connected to a rotating cap.

[0015] The beneficial effects of this utility model are as follows: This utility model provides a multi-rotor UAV with a variable lift structure, which has the following advantages:

[0016] The fixed base plate, mounting plate, mounting insert, mounting slot, and positioning mechanism work together to facilitate the disassembly and installation of the support frame by the staff. This makes it easier for the staff to store the drone, effectively reducing the overall size of the drone and improving its practicality.

[0017] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0018] 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:

[0019] Figure 1 A schematic diagram of a multi-rotor unmanned aerial vehicle with a variable lift structure is provided for one embodiment of this utility model;

[0020] Figure 2 for Figure 1 A front view schematic diagram of a multi-rotor UAV with a variable lift structure is provided.

[0021] Figure 3 for Figure 2 A top-view sectional view of the fixed base plate in a multi-rotor UAV with a variable lift structure is provided.

[0022] Figure 4 for Figure 2 A side sectional view of the fixed base plate structure in a multi-rotor UAV with a variable lift structure is provided.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Variable lift structure; 2. Arm; 3. Fuselage; 4. Connecting plate; 5. Limiting circular plate; 6. Support frame; 7. Fixed base plate; 8. Mounting plate; 9. Slide rod; 10. Buffer spring; 11. Shock absorber plate; 12. U-shaped plate; 13. Rotating cap; 14. Camera; 15. Mounting slot; 16. Mounting insert plate; 17. Positioning groove; 18. Positioning plate; 19. Threaded groove; 20. Limiting slider; 21. Limiting slide groove; 22. Threaded rod. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-4 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0026] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0027] Unless otherwise defined, 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. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] like Figure 1-4 As shown, this utility model provides a multi-rotor unmanned aerial vehicle with a variable lift structure, including a fuselage 3. A fixed base plate 7 is fixedly connected to the bottom surface of the fuselage 3. Mounting slots 15 are provided on both sides of the fixed base plate 7. Mounting inserts 16 are slidably connected inside the mounting slots 15. The mounting inserts 16 are limitedly connected to the mounting slots 15 through a positioning mechanism. A mounting plate 8 is fixedly connected to one side of the mounting insert 16. Two support frames 6 are fixedly connected to one side of the mounting plate 8. A connecting plate 4 is fixedly connected to the lower end of the support frame 6. A buffer mechanism is provided below the connecting plate 4.

[0029] Preferably, a camera 14 is fixedly connected to the middle of the lower end face of the fixed base plate 7, and multiple robotic arms 2 are connected to the body 3.

[0030] Preferably, each of the robotic arms 2 is connected to a propeller, and each of the robotic arms 2 is provided with a variable lift structure 1. The propeller is driven to rotate by a fuel engine. The variable lift structure 1 is prior art and has been disclosed in publication number CN206926816U. This application will not describe it in detail.

[0031] Preferably, the buffer mechanism includes a shock-absorbing plate 11 disposed below the connecting plate 4, and two slide rods 9, both of which penetrate the connecting plate 4 and are slidably connected to the upper end face of the shock-absorbing plate 11, are fixedly connected.

[0032] Preferably, a limiting circular plate 5 is fixedly connected to the upper end of the slide rod 9, and a buffer spring 10 is sleeved on the surface of the slide rod 9, with its two ends fixedly connected to the upper end face of the shock-absorbing plate 11 and the lower end face of the connecting plate 4, respectively. The buffer spring 10 can play a buffering role.

[0033] Preferably, the positioning mechanism includes a U-shaped plate 12 fixedly connected to the lower end face of the fixed base plate 7. The U-shaped plate 12 has a positioning plate 18 that penetrates the fixed base plate 7 and is slidably connected to the penetration portion. The positioning plate 18 can cooperate with the positioning groove 17 to limit the mounting plate 16 in the mounting slot 15.

[0034] Preferably, the positioning plate 18 is slidably connected to the positioning groove 17 formed on the surface of the mounting plate 16. The positioning plate 18 has a threaded groove 19 inside. The U-shaped plate 12 has a limiting groove 21 on both sides inside. The limiting groove 21 can cooperate with the limiting slider 20 to limit the sliding of the positioning plate 18.

[0035] Preferably, the limiting slide groove 21 is slidably connected to a limiting slider 20 that is fixedly connected to the positioning plate 18, and the threaded groove 19 is threadedly connected to a threaded rod 22 that passes through the U-shaped plate 12 and is rotatably connected to the through part through a bearing. One end of the threaded rod 22 is fixedly connected to a rotating cap 13, and the rotating cap 13 is provided to facilitate the rotation of the threaded rod 22.

[0036] The specific working principle and usage of this utility model are as follows:

[0037] This utility model provides a multi-rotor drone with a variable lift structure. In use, when the drone needs to be stored, the two rotating caps 13 at the lower end of the fixed base plate 7 are rotated respectively. The rotating caps 13 drive the threaded rod 22 to rotate, causing the threaded rod 22 to rotate. Then, under the action of the threaded groove 19, the positioning plate 18 can slide under the action of the limiting slider 20 and the limiting groove 21, thereby separating the positioning plate 18 from the positioning groove 17, thus releasing the limiting connection between the mounting plate 16 and the mounting slot 15. Then, the drone can be stored... The mounting plate 16 can be pulled out of the mounting slot 15, allowing the support frame 6 to be disassembled. This effectively reduces the overall size of the drone, making it easier for staff to store the drone. When the support frame 6 needs to be reinstalled later, the mounting plate 16 is reinserted into the mounting slot 15, and then the rotating cap 13 is reversed to reverse the threaded rod 22, which allows the positioning plate 18 to move in the opposite direction and slide into the positioning groove 17. This completes the limiting connection between the mounting plate 16 and the mounting slot 15, thereby completing the limiting installation of the support frame 6, which is quite convenient.

[0038] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any ordinary technician in this industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with this profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A multi-rotor unmanned aerial vehicle with a variable lift structure, comprising a fuselage (3), characterized in that, The bottom surface of the body (3) is fixedly connected to a fixed base plate (7). The fixed base plate (7) has mounting slots (15) on both sides. The mounting slots (15) are slidably connected to a mounting plate (16). The mounting plate (16) is limited to the mounting slot (15) by a positioning mechanism. The mounting plate (16) is fixedly connected to a mounting plate (8) on one side. The mounting plate (8) is fixedly connected to two support frames (6) on one side. The lower end of the support frame (6) is fixedly connected to a connecting plate (4). A buffer mechanism is provided below the connecting plate (4).

2. The multi-rotor UAV with a variable lift structure according to claim 1, characterized in that, A camera (14) is fixedly connected to the middle of the lower end face of the fixed base plate (7), and multiple robotic arms (2) are connected to the body (3).

3. The multi-rotor UAV with a variable lift structure according to claim 2, characterized in that, Each of the aforementioned arms (2) is connected to a propeller, and each of the aforementioned arms (2) is provided with a variable lift structure (1), the propeller being driven to rotate by a fuel engine.

4. The multi-rotor UAV with a variable lift structure according to claim 1, characterized in that, The buffer mechanism includes a shock-absorbing plate (11) disposed below the connecting plate (4), and two slide rods (9) that both penetrate the connecting plate (4) and are slidably connected to the upper end face of the shock-absorbing plate (11).

5. A multi-rotor UAV with a variable lift structure according to claim 4, characterized in that, The upper end of the slide rod (9) is fixedly connected to a limiting circular plate (5), and the surface of the slide rod (9) is fitted with a buffer spring (10) whose two ends are fixedly connected to the upper end face of the shock-absorbing plate (11) and the lower end face of the connecting plate (4), respectively.

6. The multi-rotor UAV with a variable lift structure according to claim 1, characterized in that, The positioning mechanism includes a U-shaped plate (12) fixedly connected to the lower end face of the fixed base plate (7), and a positioning plate (18) is provided inside the U-shaped plate (12) that penetrates the fixed base plate (7) and is slidably connected to the penetration part.

7. A multi-rotor UAV with a variable lift structure according to claim 6, characterized in that, The positioning plate (18) is slidably connected to the positioning groove (17) on the surface of the mounting plate (16). The positioning plate (18) has a threaded groove (19) inside, and the U-shaped plate (12) has a limiting groove (21) on both sides inside.

8. A multi-rotor UAV with a variable lift structure according to claim 7, characterized in that, The limiting slide groove (21) is slidably connected to the limiting slider (20) which is fixedly connected to the positioning plate (18). The threaded groove (19) is threadedly connected to the threaded rod (22) which passes through the U-shaped plate (12) and is rotatably connected to the through part through a bearing. One end of the threaded rod (22) is fixedly connected to a rotating cap (13).

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