Lightweight and portable disassembly large-load unmanned aerial vehicle

Abstract

The utility model discloses a kind of lightweight and portable disassembly and assembly's large load unmanned aerial vehicle, the quick connecting structure includes high head knurled bolt, the outer wall of the center frame is fixed with connecting piece by screw, the arm includes the power motor of being arranged in arm terminal, the connecting part for being arranged at top for enhancing and center frame connection intensity, and the extension part for being arranged at the top of connecting part for unmanned aerial vehicle equipment installation, one end of high head knurled bolt is connected with locking latch and is connected with connecting part and connecting piece and is perforated;The utility model center frame uses integrated molding, reduces connecting structure, can reduce the weight of overall rack, each arm only needs to remove one high head knurled bolt to be separated from corresponding arm center frame;The local thickness of center frame and extension part connecting place can be made as greater than its surrounding part thickness 3-5mm, replace the uniform thickness structure of traditional center frame, can strengthen the connection intensity of arm and center frame.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, specifically a lightweight and portable heavy-duty UAV that is easy to assemble and disassemble. Background Technology

[0002] To ensure structural strength, traditional heavy-duty drones often use thick materials and connect multiple components with screws. After assembly, the drone is heavy and not very portable, which may affect its rapid deployment and storage during outdoor operations.

[0003] In existing technologies, although some drones attempt to use lightweight materials, they often sacrifice structural strength while reducing weight, making it impossible to achieve high load capacity. On the other hand, models that focus on load capacity are difficult to balance between convenient assembly and disassembly and efficient transportation. Utility Model Content

[0004] The purpose of this utility model is to provide a lightweight and portable heavy-duty drone that is easy to assemble and disassemble. By using a hollow carbon fiber frame to make an integrally molded central frame and arms, and using a quick-connect structure composed of high-head knurled bolts and connectors, it can achieve stability after a high-head knurled bolt connection, reducing the number of connecting parts, thereby reducing the overall weight of the drone. A detachable support rod is set between the legs to make the device easy to assemble and disassemble.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lightweight and portable heavy-duty drone, comprising an integrally formed central frame and arms installed around the central frame via a quick-connect structure;

[0006] The quick-connect structure includes a high-head knurled bolt. The outer wall of the central frame is fixed with a connector by screws. The arm includes a power motor at the end of the arm, a connecting part at the top of the arm to enhance the connection strength with the central frame, an extension part at the top of the connecting part for installing UAV equipment, and a carbon fiber arm tube at one end of the connecting part. One end of the high-head knurled bolt passes through the connecting part and the connector and has a hole for connecting a locking pin.

[0007] Preferably, the connector is L-shaped, and an integrally formed bearing seat is provided on one side of the vertical plate of the connector. The outer wall of the extension is integrally formed with a protrusion, and an insertion hole is provided in the protrusion. The high-head knurled bolt is inserted into the insertion hole and the bearing seat.

[0008] Preferably, the extension part is L-shaped and integrally formed with the connecting part. The vertical plate of the extension part has a mounting hole on one side. The carbon fiber arm tube is inserted into the inner cavity at the bottom of the connecting part and fixed to the connecting part by screws.

[0009] Preferably, both the central frame and the arm are hollow carbon fiber frames, and the outer wall of the central frame has wire holes for the arrangement of UAV cables.

[0010] Preferably, the lightweight and portable heavy-duty drone also includes two sets of legs fixed to the bottom of the central frame by screws. The legs are arranged in a trapezoidal shape, and a detachable support rod is installed between the two sets of legs.

[0011] Preferably, the detachable support rod includes a rod body and rod body connecting sleeves fastened to both ends of the rod body with screws. One end of the rod body connecting sleeve is fixed with a fastening bolt, and the outer wall of the support leg is fastened with a connecting block by screws. One end of the fastening bolt is fastened to the connecting block by screws.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The central frame of this utility model is integrally molded, reducing the connection structure and reducing the weight of the overall frame. The arm is set as an extension part and a connecting part, which are fastened with carbon fiber screws and connected to the central frame through pins. During disassembly and assembly, each arm only needs to remove one high-head knurled bolt to remove the corresponding arm from the central frame, making disassembly and assembly quick.

[0014] 2. This utility model uses carbon fiber material. When the central frame is integrally molded, the local thickness at the connection with the extension part can be made to be 3-5mm greater than the thickness of the surrounding part, which replaces the uniform thickness structure of the traditional central frame and can strengthen the connection strength between the arm and the central frame. Attached Figure Description

[0015] Figure 1 This is an isometric drawing of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the arm of this utility model;

[0017] Figure 3 This is a structural schematic diagram of the detachable support rod of this utility model.

[0018] In the diagram: 1. Center frame; 2. Machine arm; 3. High-head knurled bolts; 4. Connecting parts;

[0019] 201. Carbon fiber arm tube; 202. Connecting part; 203. Extension part; 204. Locking pin; 205. Power motor;

[0020] 401, Shaft seat; 402, Protrusion; 403, Insertion hole;

[0021] 6. Mounting holes; 7. Cable holes; 8. Support legs; 9. Detachable support rods;

[0022] 901. Rod body; 902. Rod body connecting sleeve; 903. Fastening bolt; 904. Connecting block. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-3 This utility model provides a technical solution: a lightweight and portable heavy-duty drone, including an integrally formed central frame 1 and arms 2 installed around the central frame 1 via a quick-connect structure; the integrally formed central frame 1 design can reduce the connection structure of multiple parts splicing and reduce the overall weight, and a power motor 205 is installed at the end of the arms 2.

[0025] The quick-connect structure includes a high-head knurled bolt 3. The outer wall of the center frame 1 is fixed with a connector 4 by screws. The arm 2 includes a power motor 205 at the end of the arm 2, a connecting part 202 at the top of the arm 2 to enhance the connection strength with the center frame 1, an extension part 203 at the top of the connecting part 202 for installing UAV equipment, and a carbon fiber arm tube 2 at one end of the connecting part 202. The connecting part 202 strengthens the connection strength with the center frame 1, and the extension part 203 provides a mounting carrier for sensors and other equipment, improving the functional expandability of the UAV. One end of the high-head knurled bolt 3 passes through the connecting part 202 and the connector 4, and the screw is tightened with a locking pin 204.

[0026] In the quick-connect structure, the high-head knurled bolt 3 passes through the connecting part 202 and the connecting piece 4, and is locked by the locking pin 204 to ensure that the arm 2 and the center frame 1 are stably connected during drone flight. During disassembly, the high-head knurled bolt 3 can be pulled out by pulling out the locking pin 204, which quickly separates the arm 2 from the center frame 1 and meets the requirements for portable assembly and disassembly.

[0027] The connector 4 is L-shaped. An integrally formed bearing seat 401 is provided on one side of the vertical plate of the connector 4. The bearing seat 401 is integrally formed with the connector 4, eliminating the need for subsequent assembly steps and reducing the number of parts. A protrusion 402 is integrally formed on the outer wall of the extension portion 203. An insertion hole 403 is formed within the protrusion 402, and the high-head knurled bolt 3 is inserted into the insertion hole 403 and the bearing seat 401. The vertical and horizontal plates of the connector 4 are respectively adapted to the installation angle of the connection between the outer wall of the center frame 1 and the connecting portion 202 of the arm 2, forming a close-fitting connection surface.

[0028] The extension part 203 is L-shaped and integrally formed with the connecting part 202. The extension part 203 has a mounting hole 6 on one side of the vertical plate. The carbon fiber arm tube 2 is inserted into the inner cavity at the bottom of the connecting part 202 and fixed to the connecting part 202 by screws.

[0029] Both the central frame 1 and the arm 2 are constructed using hollow carbon fiber frames. The outer wall of the central frame 1 has cable holes 7 for arranging the drone's cables. The hollow carbon fiber frame significantly reduces the weight of the central frame 1 and the arm 2 while ensuring structural strength, achieving a lightweight design.

[0030] Furthermore, by setting the central frame 1 as a hollow carbon fiber frame, the local thickness of the central frame 1 at the connection with the extension part 203 is 3-5mm greater than the thickness of its surroundings, thereby improving the connection stability at the connection point.

[0031] The lightweight and portable heavy-duty drone also includes two sets of legs 8 fixed to the bottom of the central frame 1 with screws. The legs 8 are trapezoidal in shape, and a detachable support rod 9 is installed between the two sets of legs 8. The detachable support rod 9 connects to form an integral support structure, enhancing the deformation resistance of the legs 8 and preventing them from swaying during takeoff and landing. At the same time, the detachable design of the support rod 9 facilitates storage and transportation.

[0032] The detachable support rod 9 includes a rod body 901 and rod body connecting sleeves 902 fastened to both ends of the rod body 901 with screws. A fastening bolt 903 is fixed to one end of the rod body connecting sleeve 902. A connecting block 904 is fastened to the outer wall of the support leg 8 with screws, and one end of the fastening bolt 903 is fastened inside the connecting block 904. After the fastening bolt 903 is fastened to the connecting block 904 on the support leg 8, the detachable support rod 9 is fixed to the support leg 8. The screw fastening has a self-locking characteristic, which can prevent loosening caused by flight vibration and ensure the stability of the support rod connection. During disassembly and assembly, rotating the rod body connecting sleeve 902 can separate or lock the fastening bolt 903 from the connecting block 904, making the operation convenient.

[0033] When in use, attach the connecting part 202 of the machine arm 2 to the vertical plate of the connector 4, and adjust the angle of the machine arm 2 so that the insertion hole 403 of the protrusion 402 is coaxially aligned with the bearing seat 401 of the connector 4.

[0034] Insert the high-head knurled bolt 3 from one side of the bearing seat 401, through the insertion hole 403 between the bearing seat 401 and the protrusion 402, until the other end of the high-head knurled bolt 3 is completely protruding; insert the locking pin 204 into the protruding end of the high-head knurled bolt 3 to complete the assembly of a single arm 2. Follow the same steps to complete the assembly of all the arms 2 around the center frame 1.

[0035] The device uses minimal connection structure to install the heavy-duty arm 2, and a connection part 202 is set at the connection position between the arm 2 and the central frame 1 to enhance connection stability. This not only reduces the overall weight of the drone and makes the drone lightweight, but also makes the arm 2 quick and easy to assemble and disassemble, which is conducive to the convenient storage and transportation of the drone for outdoor use.

[0036] 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 lightweight and portable heavy-duty unmanned aerial vehicle (UAV) characterized by: It includes an integrally formed central frame (1) and machine arms (2) installed around the central frame (1) via a quick-connect structure; The quick-connect structure includes a high-head knurled bolt (3), and the outer wall of the center frame (1) is fixed with a connector (4) by screws. The arm (2) includes a power motor (205) at the end of the arm (2), a connecting part (202) at the top of the arm (2) to enhance the connection strength with the center frame (1), an extension part (203) at the top of the connecting part (202) for installing UAV equipment, and a carbon fiber arm tube (201) at one end of the connecting part (202). One end of the high-head knurled bolt (3) passes through the connecting part (202) and the connector (4) and has a hole for connecting a locking pin (204).

2. The lightweight and portable heavy-load UAV according to claim 1, characterized in that: The connector (4) is L-shaped. One side of the vertical plate of the connector (4) is provided with an integrally formed bearing seat (401). The outer wall of the extension part (203) is integrally formed with a protrusion (402). An insertion hole (403) is opened in the protrusion (402). The high-head knurled bolt (3) is inserted into the insertion hole (403) and the bearing seat (401).

3. The lightweight and portable heavy-duty UAV according to claim 2, characterized in that: The extension part (203) is L-shaped and integrally formed with the connecting part (202). The extension part (203) has a mounting hole (6) on one side of the vertical plate. The carbon fiber arm tube (201) is inserted into the inner cavity at the bottom of the connecting part (202) and fixed to the connecting part (202) by screws.

4. A lightweight and portable heavy-duty UAV according to claim 3, characterized in that: Both the central frame (1) and the arm (2) are hollow carbon fiber frames, and the outer wall of the central frame (1) is provided with wire holes (7) for the arrangement of UAV cables.

5. A lightweight and portable heavy-duty UAV according to claim 4, characterized in that: The lightweight and portable heavy-duty drone also includes two sets of legs (8) fixed to the bottom of the central frame (1) by screws. The legs (8) are arranged in a trapezoidal shape, and a detachable support rod (9) is installed between the two sets of legs (8).

6. A lightweight and portable heavy-duty UAV according to claim 5, characterized in that: The detachable support rod (9) includes a rod body (901) and rod body connecting sleeves (902) with screws fastened to both ends of the rod body (901). One end of the rod body connecting sleeve (902) is fixed with a fastening bolt (903). The outer wall of the support leg (8) is screwed with a connecting block (904). One end of the fastening bolt (903) is screwed into the connecting block (904).

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