Unmanned aerial vehicle with bent arms capable of being folded in horizontal direction

Abstract

The utility model is applicable to the technical field of unmanned aerial vehicles, and provides an unmanned aerial vehicle with a horizontal foldable bent arm, which comprises an unmanned aerial vehicle body, a plurality of first hinges, wherein the plurality of first hinges are fixedly mounted on the unmanned aerial vehicle body; the plurality of connecting arms are respectively mounted on the plurality of first hinges through bolts; the unmanned aerial vehicle comprises an unmanned aerial vehicle body, a limiting cylinder and a plurality of limiting cylinders, the plurality of limiting cylinders are fixed on the unmanned aerial vehicle body, and threaded cylinders are rotatably mounted in the plurality of limiting cylinders. According to the unmanned aerial vehicle with the bent arms capable of being folded in the horizontal direction, the vehicle arms can be folded during storage so as to reduce the occupied space, so that storage and transportation are facilitated, and meanwhile, the time needed by subsequent installation and debugging can be saved by folding the vehicle arms instead of disassembling the vehicle arms.

Description

Technical Field

[0001] The utility model belongs to the technical field of unmanned aerial vehicles, and in particular relates to an unmanned aerial vehicle with a horizontally foldable bending arm. Background Art

[0002] A drone is an aircraft that does not carry people and can perform flight missions. Drones are mainly controlled by radio remote control equipment or self-contained program control devices. They can perform a variety of tasks such as reconnaissance, photography, and cargo transportation. From a technical point of view, drones can be divided into different types such as unmanned helicopters, unmanned fixed-wing aircraft, unmanned multi-rotor aircraft, unmanned airships, and unmanned paragliders. In addition, drones are widely used in both military and civilian fields, such as aerial photography, agricultural plant protection, power inspections, disaster relief, etc.

[0003] In order to reduce the space occupied by drones and make them easier to store and transfer, the arms of some drones can be disassembled. Although this method can reduce the space occupied by drones, after the drone components are disassembled and assembled, the drone flight control system needs to be recalibrated and debugged, which is inconvenient. At the same time, the disassembled components are also prone to the risk of being lost. Utility Model Content

[0004] The utility model provides a drone with a horizontally foldable arm, aiming to solve the problem proposed in the above background technology that although disassembling the drone arm can achieve the effect of saving space, it is inconvenient to recalibrate, debug and assemble accessories.

[0005] To solve the above problems, the utility model is implemented as follows: a drone with horizontally foldable bending arms, comprising: a drone body; a plurality of first hinges, which are fixedly mounted on the drone body; a plurality of connecting arms, which are respectively mounted on the plurality of first hinges by bolts; a plurality of limiting cylinders, which are fixed on the drone body, and in which threaded cylinders are rotatably mounted; a plurality of threaded rods, which are respectively threadedly mounted in the plurality of limiting cylinders; a plurality of retaining rings, which are respectively mounted on the plurality of connecting arms, and the plurality of threaded rods can be respectively extended into the plurality of retaining rings; a plurality of secondary folding components, which are respectively arranged on the plurality of connecting arms, and the secondary folding components are used to assist in folding fan blades.

[0006] Preferably, a plurality of the connecting arms are fixedly mounted with an electric control fan for the drone, and a plurality of the fan blades are respectively mounted on the plurality of the electric control fans for the drone.

[0007] Preferably, the secondary folding assembly includes a second hinge, a rotating shaft, a clamping rod and a cylinder, the second hinge is installed on any one of the fan blades and is connected to any one of the UAV electric adjustment fans, the rotating shaft is fixedly installed on the UAV electric adjustment fan, the clamping rod is rotatably installed on the rotating shaft, and the cylinder is fixedly installed on the clamping rod and can contact the fan blades.

[0008] Preferably, springs are installed in the multiple cylinders, and limiting blocks are fixed at the bottoms of the multiple springs. The multiple limiting blocks are respectively located in the multiple cylinders, and clamping blocks are fixedly installed on the multiple limiting blocks. The multiple clamping blocks can be extended outside the multiple cylinders respectively. The multiple fan blades are provided with clamping sockets, and the multiple clamping blocks can be extended into the multiple clamping sockets respectively.

[0009] Preferably, a plurality of the blocks are all fixedly mounted with connecting rods, the plurality of the connecting rods can be divided and extended outside the plurality of cylinders, and a pull ring is all fixedly mounted on the plurality of the connecting rods.

[0010] Preferably, the plurality of connecting arms are each provided with an anti-sliding block, the plurality of anti-sliding blocks are each provided with anti-slip grooves, and the plurality of threaded rods are each installed with a fixing rod.

[0011] Preferably, the plurality of connecting arms, limiting cylinders, threaded cylinders, threaded rods, clamping rings, fixed rods, rotating shafts, clamping rods, cylinder bodies, limiting blocks, clamping blocks, connecting rods and pull rings are all made of carbon fiber materials, and empty chambers are provided in the plurality of connecting arms, threaded rods, fixed rods and clamping rods.

[0012] Compared with the related art, the drone with horizontally foldable arms provided by the utility model has the following beneficial effects:

[0013] Compared with the prior art, the drone with a horizontally foldable arm provided by the present invention can fold the connecting arm and the fan blades when needed by setting a first hinge and a second hinge, thereby reducing the space occupied by the device. The threaded rod and the clamping ring can be used to stabilize the unfolded connecting arm to prevent the connecting arm from bending during the flight of the drone. The cylinder can be used to limit the unfolded fan blades to prevent the fan blades from bending during rotation and causing the drone to fall. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of a top view structure of a UAV with a horizontally foldable bending arm provided by the utility model;

[0015] Figure 2 for Figure 1 An enlarged structural diagram of part A shown in FIG.

[0016] Figure 3 for Figure 1 An enlarged schematic diagram of the structure of part B shown in FIG.

[0017] Figure 4 for Figure 1 An enlarged schematic diagram of the structure of part C shown in FIG.

[0018] Figure 5 It is a schematic diagram of the main cross-sectional structure of the cylinder in the utility model.

[0019] Figure numerals: 1. UAV body; 2. first hinge; 3. connecting arm; 4. limiting cylinder; 5. threaded cylinder; 6. threaded rod; 7. clamping ring; 8. fixing rod; 9. UAV electric adjustment fan; 10. fan blades; 11. second hinge; 12. rotating shaft; 13. clamping rod; 14. cylinder body; 15. spring; 16. limiting block; 17. clamping block; 18. connecting rod; 19. pull ring; 20. anti-sliding block. DETAILED DESCRIPTION

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including" and "having" in the specification and claims of the present application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present application or the above-mentioned figures are used to distinguish different objects, rather than to describe a specific order; the terms "inside", "outside", "left", and "right" indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0021] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0022] The utility model provides a drone with a horizontally foldable arm, such as Figure 1-5As shown, the drone with horizontally foldable bending arms includes: a drone body 1; a plurality of first hinges 2, wherein the plurality of first hinges 2 are fixedly mounted on the drone body 1; a plurality of connecting arms 3, wherein the plurality of connecting arms 3 are respectively mounted on the plurality of first hinges 2 by bolts; a plurality of limiting cylinders 4, wherein the plurality of limiting cylinders 4 are fixed on the drone body 1, wherein the plurality of limiting cylinders 4 are rotatably mounted with threaded cylinders 5; a plurality of threaded rods 6, wherein the plurality of threaded rods 6 are respectively threadedly mounted in the plurality of limiting cylinders 4; a plurality of retaining rings 7, wherein the plurality of retaining rings 7 are respectively mounted on the plurality of connecting arms 3, and the plurality of threaded rods 6 can respectively extend into the plurality of retaining rings 7; a plurality of secondary folding components, wherein the plurality of secondary folding components are respectively arranged on the plurality of connecting arms 3, and the secondary folding components are used to assist in folding the fan blades 10.

[0023] In this embodiment, the UAV body 1 is the main part of the UAV, which includes the main flight control system, power supply and other necessary components. The first hinge 2 serves as the installation base of the connecting arm 3. Through the hinge structure, the connecting arm 3 can be folded in the horizontal direction. When the UAV is not needed, the connecting arm 3 can be folded to significantly reduce its volume. The threaded rod 6 cooperates with the retaining ring 7 to fix and lock the position of the connecting arm 3 to ensure the stability and safety of the connecting arm 3 during flight. The secondary folding component is used to assist in folding the fan blades 10. In this way, in addition to the folding of the connecting arm 3 itself, the fan blades 10 can also be folded, further reducing the overall size of the UAV while preventing the fan blades 10 from colliding with each other and affecting the folding of the connecting arm 3.

[0024] In a further preferred embodiment of the utility model, a plurality of the connecting arms 3 are fixedly mounted with an electric adjustable fan 9 for a UAV, and a plurality of the fan blades 10 are respectively mounted on the plurality of the electric adjustable fans 9 for a UAV.

[0025] In this embodiment, the UAV electric fan 9 is one of the important components of the UAV, which is responsible for driving the fan blades 10 to rotate, thereby generating thrust to enable the UAV to fly. The UAV electric fan 9 can perform corresponding actions as the connecting arm 3 is folded and unfolded, maintaining the stability and functionality of its structure. The fan blades 10 are the parts that directly interact with the air, and they generate lift by rotating at high speed. Since the connecting arm 3 has a folding function, the fan blades 10 can also be folded when not needed, thereby further reducing the overall size of the UAV.

[0026] In a further preferred embodiment of the utility model, the secondary folding component includes a second hinge 11, a rotating shaft 12, a clamping rod 13 and a cylinder 14, the second hinge 11 is installed on any one of the fan blades 10 and is connected to any one of the UAV electric adjustment fans 9, the rotating shaft 12 is fixedly installed on the UAV electric adjustment fan 9, the clamping rod 13 is rotatably installed on the rotating shaft 12, and the cylinder 14 is fixedly installed on the clamping rod 13 and can contact the fan blades 10.

[0027] In this embodiment, the design of the second hinge 11 enables the fan blades 10 to be folded relative to the UAV's electrically adjustable fan 9, thereby further reducing the overall size of the UAV. At the same time, the hinge structure also ensures the stability and reliability of the fan blades 10 during the folding and unfolding process. The presence of the rotating shaft 12 enables the lever 13 to rotate around it, thereby realizing the locking function of the fan blades 10. When the fan blades 10 need to be unfolded, it is only necessary to make the cylinder 14 contact with the fan blades 10 to prevent the fan blades 10 from easily changing angles during rotation.

[0028] In a further preferred embodiment of the utility model, springs 15 are installed in multiple cylinders 14, and limit blocks 16 are fixed at the bottom of multiple springs 15. Multiple limit blocks 16 are respectively located in multiple cylinders 14, and multiple limit blocks 16 are fixedly installed with clamping blocks 17. Multiple clamping blocks 17 can be extended to the outside of multiple cylinders 14 respectively. Multiple fan blades 10 are provided with bayonet holes, and multiple clamping blocks 17 can be extended into multiple bayonet holes respectively.

[0029] In this embodiment, the spring 15 provides elastic force for the limit block 16 and the clamping block 17. When the clamping block 17 needs to be inserted into the clamping slot of the fan blade 10, the elastic force of the spring 15 can push the clamping block 17 to smoothly enter the clamping slot to achieve the locking of the fan blade 10. The function of the limit block 16 is to prevent the clamping block 17 from over-extending. The design of the clamping block 17 enables it to be easily inserted into the clamping slot of the fan blade 10, thereby achieving the locking function of the fan blade 10 and increasing the stability of the contact between the cylinder 14 and the fan blade 10.

[0030] In a further preferred embodiment of the present invention, a plurality of the blocks 17 are fixedly mounted with connecting rods 18 , the plurality of connecting rods 18 can be divided and extended outside the plurality of cylinders 14 , and a pull ring 19 is fixedly mounted on the plurality of connecting rods 18 .

[0031] In this embodiment, the connecting rod 18 serves as a bridge connecting the block 17 and the pull ring 19. Its function is to effectively transfer the pulling force of the pull ring 19 to the block 17, so that the user can conveniently operate the block 17 by pulling the pull ring 19 to achieve the folding and locking functions of the fan blade 10. The design of the pull ring 19 allows the user to easily hold and pull it, thereby achieving control over the block 17, improving the convenience of operation, and reducing the possibility of misoperation, making the use of the secondary folding component simpler and more intuitive.

[0032] In a further preferred embodiment of the utility model, a plurality of the connecting arms 3 are provided with anti-sliding blocks 20 , a plurality of the anti-sliding blocks 20 are provided with anti-slip grooves, and a plurality of the threaded rods 6 are provided with fixing rods 8 .

[0033] In this embodiment, the anti-sliding block 20 increases the surface friction of the connecting arm 3, so that the user can hold the connecting arm 3 more firmly and not easily slip, thereby improving the safety of operation. At the same time, when limiting rings are mounted on multiple connecting arms 3 to stabilize the angles of the connecting arms 3, the limiting rings can be stabilized by the anti-sliding block 20. The function of the fixing rod 8 is to increase the support and stability of the threaded rod 6. The staff can stabilize the threaded rod 6 by holding the fixing rod 8 to prevent it from rotating, and can adjust the extension and retraction of the threaded rod 6 by rotating the threaded tube 5.

[0034] In a further preferred embodiment of the utility model, multiple connecting arms 3, limiting tubes 4, threaded tubes 5, threaded rods 6, clamping rings 7, fixing rods 8, rotating shafts 12, clamping rods 13, cylinder bodies 14, limiting blocks 16, clamping blocks 17, connecting rods 18 and pull rings 19 are all made of carbon fiber materials, and multiple connecting arms 3, threaded rods 6, fixing rods 8 and clamping rods 13 are each provided with an empty compartment.

[0035] This drone is large in size, with a wheelbase of 2-5 meters or even larger, and its foldable arms are convenient for storage, transportation, and daily use.

[0036] In this embodiment, carbon fiber has the characteristics of light weight, high strength, and corrosion resistance, so that the UAV can effectively reduce the overall weight while maintaining structural stability, thereby improving flight efficiency and endurance. Carbon fiber also has good impact resistance. The hollow chamber not only reduces the weight of the component, but also provides it with good heat dissipation performance.

[0037] To sum up, compared with the related art, the present device can fold the connecting arm 3 and the fan blade 10 when needed by setting the first hinge 2 and the second hinge 11, thereby reducing the space occupied by the present device; the threaded rod 6 and the retaining ring 7 can be used to stabilize the unfolded connecting arm 3 to prevent the connecting arm 3 from bending during the flight of the drone; the cylinder 14 can be used to limit the unfolded fan blade 10 to prevent the fan blade 10 from bending during rotation and causing the drone to fall.

[0038] In the several embodiments provided in this application, it should be understood that the disclosed device can be implemented in other ways.

[0039] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A drone with horizontally foldable arms, characterized in that: include: The drone itself; A plurality of first hinges, wherein the plurality of first hinges are fixedly mounted on the drone body; A plurality of connecting arms, wherein the plurality of connecting arms are respectively mounted on the plurality of first hinges by bolts; A limiting cylinder, a plurality of limiting cylinders, wherein the plurality of limiting cylinders are fixed on the drone body, and a threaded cylinder is rotatably installed in the plurality of limiting cylinders; A plurality of threaded rods, wherein the plurality of threaded rods are respectively threadedly installed in the plurality of limiting cylinders; A plurality of snap rings, wherein the plurality of snap rings are respectively mounted on the plurality of connecting arms, and the plurality of threaded rods can respectively extend into the plurality of snap rings; A plurality of secondary folding components are respectively arranged on the plurality of connecting arms, and the secondary folding components are used to assist in folding the fan blades.

2. The drone with horizontally foldable arms as claimed in claim 1, characterized in that: The plurality of connecting arms are all fixedly mounted with UAV electric adjustment fans, and the plurality of fan blades are respectively mounted on the plurality of UAV electric adjustment fans.

3. The drone with horizontally foldable arms as claimed in claim 2, characterized in that: The secondary folding assembly includes a second hinge, a rotating shaft, a clamping rod and a cylinder. The second hinge is installed on any one of the fan blades and is connected to any one of the UAV electric adjustment fans. The rotating shaft is fixedly installed on the UAV electric adjustment fan. The clamping rod is rotatably installed on the rotating shaft. The cylinder is fixedly installed on the clamping rod and can contact the fan blades.

4. The drone with horizontally foldable arms as claimed in claim 3, characterized in that: Springs are installed in the multiple cylinders, and limiting blocks are fixed at the bottoms of the multiple springs. The multiple limiting blocks are respectively located in the multiple cylinders. Card blocks are fixedly installed on the multiple limiting blocks, and the multiple card blocks can be extended outside the multiple cylinders respectively. Card slots are provided on the multiple fan blades, and the multiple card blocks can be extended into the multiple card slots respectively.

5. The drone with horizontally foldable arms as claimed in claim 4, characterized in that: Connecting rods are fixedly mounted on the plurality of clamping blocks, the plurality of connecting rods can be divided and extended outside the plurality of cylinders, and pull rings are fixedly mounted on the plurality of connecting rods.

6. The drone with horizontally foldable arms as claimed in claim 1, characterized in that: Anti-sliding blocks are provided on the plurality of connecting arms, anti-sliding blocks are provided with anti-slip grooves, and fixing rods are installed on the plurality of threaded rods.

7. The drone with horizontally foldable arms as claimed in claim 5, characterized in that: The plurality of connecting arms, limiting cylinders, threaded cylinders, threaded rods, clamping rings, fixing rods, rotating shafts, clamping rods, cylinder bodies, limiting blocks, clamping blocks, connecting rods and pull rings are all made of carbon fiber material, and the plurality of connecting arms, threaded rods, fixing rods and clamping rods are each provided with an empty compartment.

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