Unmanned aerial vehicle arm connecting device

Abstract

The utility model relates to the technical field of unmanned aerial vehicle equipment, in particular to an unmanned aerial vehicle arm connecting device, which is used for realizing detachable connection between an unmanned aerial vehicle arm and an unmanned aerial vehicle body, and is provided with a first connecting piece, a second connecting piece and a fool-proof mechanism, the second connecting piece is provided with an inserting part, the fool-proof mechanism is provided with at least one group of guide structures, and each guide structure is configured to be provided with a first guide surface and a second guide surface; and during insertion, the second guide surface can slide along the first guide surface, so that the insertion part is inserted into the insertion groove at a set angle, and the problem that when the unmanned aerial vehicle arm is assembled and connected with the unmanned aerial vehicle body, the assembly direction of a propeller is easily reversed, and the unmanned aerial vehicle cannot be normally used is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicle equipment, in particular to an arm connecting device for an unmanned aerial vehicle. Background Art

[0002] At present, a large number of civilian unmanned aerial vehicles have emerged. With the gradual development of multi-rotor unmanned aerial vehicles, unmanned aerial vehicles have been widely popularized in different fields, such as aerial photography, surveying and mapping, and agricultural plant protection. In order to meet different needs, there are also differences in the body shape and size. For example, a small-scale model aircraft is only as big as a palm, while the shape and size of an unmanned aerial vehicle for plant protection are dozens of times that of it. However, the large body size brings inconvenience to transportation and operation transfer. Reducing the body size, improving the transportation convenience and reducing the transportation cost have become urgent problems to be solved.

[0003] In this regard, the design of detachable or scalable connection between the arm of the unmanned aerial vehicle and the fuselage has become inevitable. However, several propellers on the existing unmanned aerial vehicles are usually installed on the arms of the unmanned aerial vehicle. When the propellers rotate, the rotation direction of each propeller is different. In this case, when the arm of the unmanned aerial vehicle is assembled and connected to the fuselage of the unmanned aerial vehicle, it is easy to cause the assembly direction of the propeller to be reversed, so that the unmanned aerial vehicle cannot be used normally.

[0004] Therefore, the above technical problems need to be solved. Content of the Utility Model

[0005] In order to overcome the deficiencies of the prior art, the utility model provides an arm connecting device for an unmanned aerial vehicle, which is used to realize the detachable connection between the arm of the unmanned aerial vehicle and the fuselage of the unmanned aerial vehicle, so as to reduce the body size of the unmanned aerial vehicle, and at the same time, the arm of the unmanned aerial vehicle can be assembled and connected to the fuselage of the unmanned aerial vehicle at a specific angle, thereby preventing the propeller from not working properly due to the reverse installation of the arm of the unmanned aerial vehicle and affecting the normal flight of the unmanned aerial vehicle.

[0006] In order to solve the above technical problems, the basic technical solution proposed by the utility model is as follows:

[0007] An arm connecting device for an unmanned aerial vehicle is used to realize the detachable connection between the arm of the unmanned aerial vehicle and the fuselage of the unmanned aerial vehicle. The connecting device has a first connecting piece, a second connecting piece and an anti-fooling mechanism. The first connecting piece has a slot, and the second connecting piece has a plugging part. During assembly, the plugging part is plugged into the slot. The anti-fooling mechanism has at least one set of guiding structures, and the guiding structures are configured to have:

[0008] A first guiding surface formed on the inner wall surface of the slot;

[0009] A second guiding surface formed on the outer side surface of the plugging part;

[0010] When plugging in, the second guiding surface can slide along the first guiding surface so that the plugging part is inserted into the slot at a set angle.

[0011] Furthermore, there are at least two groups of the guiding structures;

[0012] The different groups of the guiding structures are arranged at intervals.

[0013] Furthermore, on both sides of the open end of the slot, there are outer guiding inclined surfaces that are inclined in the direction away from the opening respectively;

[0014] On both sides of the end of the plugging part that corresponds to and cooperates with the outer guiding inclined surface, there are inner guiding inclined surfaces that are inclined respectively;

[0015] The outer guiding inclined surface and the inner guiding inclined surface are arranged in parallel.

[0016] Furthermore, a clamp is sleeved on the second connecting piece;

[0017] The clamp has two clamping ends;

[0018] By bringing the two clamping ends into contact, the second connecting piece firmly assembles the drone arm.

[0019] Furthermore, the second connecting piece has an adjusting part;

[0020] The clamp is sleeved on the adjusting part;

[0021] By adjusting the distance between the two clamping ends, the adjusting part changes the inner diameter size of the second connecting piece.

[0022] It further includes an electric control component; the electric control component is built into the drone arm connecting device and is used for electrically connecting with the drone fuselage.

[0023] Furthermore, the electric control component includes a first terminal and a second terminal;

[0024] After the first connecting piece and the second connecting piece are assembled and connected, the first terminal and the second terminal are inserted and connected.

[0025] Furthermore, the drone arm connecting device also has a fixing piece built in;

[0026] The fixing piece is used to assist the effective plugging of the first terminal and the second terminal.

[0027] Furthermore, the drone arm connecting device is connected to the fuselage in a forward rotation connection or a reverse rotation connection.

[0028] The beneficial effects of the present utility model are:

[0029] Technical solution of the present utility model: A drone arm connection device. In this technical solution, the drone arm has a first connector, a second connector, and an anti-misassembly mechanism. The first connector and the second connector are respectively connected to the drone fuselage and the drone arm. Then, the anti-misassembly mechanism enables the first connector and the second connector to be assembled at a specific angle, so as to correctly assemble the drone arm on the drone fuselage, and avoid the technical problem that the propeller is installed reversely and affects the normal flight of the drone. Description of the Drawings

[0030] Figure 1 Structural schematic diagram of the drone arm connection device according to Embodiment 1 of the present utility model;

[0031] Figure 2 Structural schematic diagram of the anti-misassembly mechanism according to Embodiment 1 of the present utility model;

[0032] Figure 3 Structural schematic diagram of the slot and the insertion part according to Embodiment 1 of the present utility model;

[0033] Figure 4 Front rotation assembly schematic diagram of the connection device relative to the fuselage according to Embodiment 1 of the present utility model;

[0034] Figure 5 Reverse rotation assembly schematic diagram of the connection device relative to the fuselage according to Embodiment 1 of the present utility model;

[0035] Figure 6 Structural schematic diagram of the clamp and the adjustment part according to Embodiment 1 of the present utility model;

[0036] Figure 7 Internal structure diagram of the drone arm connection device according to Embodiment 1 of the present utility model;

[0037] Description of the reference numerals:

[0038] 1 - Drone arm connection device, 11 - First connector, 111 - Slot, 1111 - Outer guiding inclined surface, 12 - Second connector, 121 - Insertion part, 1211 - Inner guiding inclined surface, 122 - Clamp, 1221 - Clamping end, 123 - Adjustment part, 13 - Anti-misassembly mechanism, 131 - Guiding structure, 1311 - First guiding surface, 1312 - Second guiding surface, 2 - Fuselage, 3 - Drone arm, 4 - Electric control component, 41 - First terminal, 42 - Second terminal, 5 - Fixing part. Detailed implementation manners

[0039] The following will be combined with the attached Figure 1 to the attached Figure 7The technical solutions in the embodiments of the present utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0040] In order to facilitate the storage of some large unmanned aerial vehicles (UAVs), the arms of existing UAVs and their fuselages are usually designed to be foldable, detachable, or telescopic. However, since propellers are usually installed on the arms, and on a UAV, the rotation directions of each propeller are inconsistent. Therefore, the arm needs to be assembled into the fuselage in a directional manner to prevent the propellers from being installed in reverse, which may cause the UAV to be unable to fly normally.

[0041] In response to this, the present inventor provides a UAV arm connection device. One end of this UAV arm connection device is connected to the fuselage, and the other end is connected to the UAV arm. The UAV arm connection device also has an anti-fooling mechanism, aiming to enable this end of the UAV arm to be assembled into this end of the fuselage at a specific angle, so as to prevent the technical problem that the rotation direction of the propeller blades is incorrect due to the reverse installation of the UAV arm, resulting in the UAV being unable to fly normally.

[0042] As Figure 1 shown, a UAV arm connection device of the present technical solution is used to detachably connect the UAV arm 3 to the UAV fuselage 2. The connection device 1 has a first connector 11, a second connector 12, and an anti-fooling mechanism 13. The anti-fooling mechanism 13 has a guiding structure 131. Both the first connector 11 and the second connector 12 are hollow structures, and an electric control component 4 is assembled inside their hollows. The electric control component 4 is used to electrically connect to the fuselage 1 and the propellers at the end of the UAV arm 3. The first connector 11 is assembled and connected to the second connector 12 at a specific angle through an anti-fooling mechanism 13.

[0043] The first connector 11 has a slot 111, and the second connector 12 has a plug-in portion 121. During assembly, the plug-in portion 121 is inserted into the slot 111, and by nesting the plug-in portion 121 into the slot 111, the assembly connection between the first connector 11 and the second connector 12 is achieved.

[0044] In this embodiment, the longitudinal cross-section of the plug-in portion 121 presents a rectangular block structure, and correspondingly, the longitudinal cross-section of the slot 111 also presents a rectangular hollow structure. The shapes and sizes of the two components are adapted, and the hollow of the slot 111 can accommodate the block of the plug-in portion 121, so that the plug-in portion 121 is snugly and properly assembled in the slot 111.

[0045] In some other embodiments, the plugging portion 121 and the slot 111 are not limited to a rectangular cross-sectional shape, and as long as they have a concave-convex nesting structure, they are within the protection scope of the present technical solution.

[0046] Further, as Figure 2 shown, the anti-fooling mechanism 13 has at least one set of guiding structures 131, and the guiding structures 131 are configured to have: a first guiding surface 1311 formed at the inner wall surface of the slot 111; a second guiding surface 1312 formed at the outer side surface of the plugging portion 121; when plugging, the second guiding surface 1312 can slide along the first guiding surface 1311 so that the plugging portion 121 is inserted into the slot 111 at a set angle.

[0047] It should be understood that in this embodiment, the first guiding surface 1311 and the second guiding surface 1312 play a guiding role, and the purpose is to facilitate the assembly of the second connecting member 12 into the first connecting member 11 at a set angle. The guiding structure is not only a surface, but also other structures, such as shape, thickness, etc., as long as it can realize the assembly of the second connecting member 12 into the first connecting member 11 at a set angle.

[0048] In addition, the first guiding surface 1311 and the second guiding surface 1312 should be adapted so that after the second connecting member 12 is assembled into the first connecting member 11, the outer surface of the second connecting member 12 can be in contact with the inner surface of the first connecting member 11 to achieve a reliable assembly of the first connecting member 11 and the second connecting member 12.

[0049] Further, as Figure 2 shown, the guiding structure 131 has at least two sets; different sets of the guiding structures 131 are arranged at intervals.

[0050] It should be understood that different sets of the guiding structures 131 should be different at least in terms of shape, area, thickness, structure, etc., so that the user can assemble the second connecting member 12 into the first connecting member 11 at a set angle.

[0051] For example, in this embodiment, Figure 2 when viewed from left to right, the thickness from the first guiding surface 1311 of the first set of the guiding structures 131 on the left side to the outer surface of the first connecting member 11 is less than the thickness from the first guiding surface 1311 to the outer surface of the second connecting member 12. And Figure 2 when viewed from top to bottom as shown, the height of the first guiding surface 1311 on the left side is less than the height of the first guiding surface 1311 on the right side.

[0052] Through these two differences, it is convenient for the user to assemble the second connecting member 12 into the first connecting member 11 at a set angle.

[0053] Furthermore, as Figure 3 shown, on both sides of the opening end of the slot 111, outer guiding inclined surfaces 1111 are respectively inclined in a direction away from the opening; on both sides of the end of the insertion portion 121 corresponding to and cooperating with the outer guiding inclined surface 1111, inner guiding inclined surfaces 1211 are respectively inclined; the outer guiding inclined surface 1111 and the inner guiding inclined surface 1211 are arranged in parallel.

[0054] It should be understood that during assembly, when assembling the second connecting member 12 into the first connecting member 11, the inner guiding inclined surface 1211 will first touch the outer guiding inclined surface 1111 and fall into the slot 111 along the outer guiding inclined surface 1111 until the end surface of the insertion portion 121 contacts the bottom groove surface of the slot 111. Thus, the second connecting member 12 is assembled in the first connecting member 11. It can be understood that the outer guiding inclined surface 1111 and the inner guiding inclined surface 1211 are for the effective and accurate assembly of the second connecting member 12 and the first connecting member 11.

[0055] Furthermore, as Figures 4 to 5 shown, the drone arm connecting device 1 is connected to the fuselage 2 in a forward rotation connection or a reverse rotation connection.

[0056] It should be understood that in order to simplify the assembly of the drone and save the production materials of the drone. A drone arm connecting device of the present technical solution can be applied to the assembly of the drone arm and the fuselage 2 of the same drone. In particular, especially the rotation directions of the propeller blades of adjacent drones are inconsistent. Therefore, when the connecting device 1 installed on one side needs to be applied to the adjacent drone arm 3, the entire connecting device 1 is adjusted in a forward rotation direction relative to the fuselage 2 from left to right to be in the state as Figure 4 shown to achieve the forward rotation of the connecting device 1 relative to the fuselage 2; conversely, making the connecting device 1 rotate in the reverse direction relative to the fuselage 2 from right to left results in a state as Figure 5Just keep the state shown. Moreover, after the connection device 1 adjusts the angle, at this time, the structures on the upward-facing sides of the guiding structures 131 inside two adjacent connection devices 1 arranged adjacent to each other are different. Thus, it is convenient for the user to slide the second guiding surface 1312 corresponding to the structure on the upward-facing side of the second connecting member 12 along the first guiding surface 1311 into the first connecting member 11. This design method does not require the entire drone arm 3 to be disassembled. As long as the assembly angle of the connection device 1 relative to the fuselage 2 is adjusted, it is convenient and fast.

[0057] Furthermore, as Figure 6 shown, a clamp 122 is sleeved on the second connecting member 12; the clamp 122 has two clamping ends 1221; by bringing the two clamping ends 1221 into contact, the second connecting member 12 is firmly assembled to the drone arm 3. Furthermore, the second connecting member 12 has an adjusting portion 123; the clamp 122 is sleeved on the adjusting portion 123; by adjusting the distance between the two clamping ends 1221, the adjusting portion 123 changes the inner diameter size of the second connecting member 12.

[0058] In this embodiment, the clamp 122 is sleeved at the adjusting portion 123. By reducing the distance between the two clamping ends 1221, the diameter of the adjusting portion 123 becomes smaller, thereby changing the inner diameter of the second connecting member 12 so that the second connecting member 12 can better fix the drone arm 3.

[0059] Furthermore, as Figure 1 and Figure 7 shown, a drone arm connection device of this technical solution further includes an electric control component 4; the electric control component 4 is built into the drone arm connection device 3 for electrical connection with the fuselage 2. The electric control component 4 includes a first terminal 41 and a second terminal 42; after the first connecting member 11 and the second connecting member 12 are assembled and connected, the first terminal 41 and the second terminal 42 are inserted and connected.

[0060] It should be understood that in this embodiment, the first terminal 41 is electrically connected to the fuselage 2, and the second terminal 42 is electrically connected to the drone arm 3. When the first connecting member 11 and the second connecting member 12 are assembled and connected, the first terminal 41 and the second terminal 42 are inserted and connected, thereby realizing the electrical connection between the drone arm 3 and the fuselage 2.

[0061] When the first connecting member 11 and the second connecting member 12 are disassembled and separated, the first terminal 41 is withdrawn from the second terminal 42, thereby disconnecting the electrical connection between the drone arm 3 and the fuselage 2.

[0062] However, in order for the first terminal 41 and the second terminal 42 to be effectively plugged in and to prevent misalignment and dislocation of the first terminal 41 and the second terminal 42 during the assembly process.

[0063] Furthermore, as Figure 7 shown, the connecting device 1 further internally has a fixing member 5; the fixing member 5 is used to assist the effective plugging of the first terminal 41 and the second terminal 42.

[0064] In this embodiment, there are at least two fixing members 5, which are respectively placed in the first connecting member 11 and the second connecting member 12. Each fixing member 5 is assembled with the first terminal 41 or the second terminal 42, and the fixing member 5 is used to fix the first terminal 41 or the second terminal 42 to prevent the first terminal 41 and the second terminal 42 from moving in position during the plugging process.

[0065] In summary, a connecting device for a drone arm according to this technical solution can enable adjacent drone arms 3 to be correctly assembled on the fuselage 2 through the respective connecting devices 1 connected thereto, so as to avoid the problem that the drone cannot fly normally due to incorrect assembly of the propellers.

[0066] According to the disclosure and teaching of the above specification, those skilled in the art to which the present invention pertains can also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present invention.

Claims

1. A drone arm connection device, used to realize the detachable connection between the drone arm and the drone body, the connection device comprises a first connection member, a second connection member and an anti-fool mechanism, the first connection member has a slot, the second connection member has a plug-in portion, and the plug-in portion is plugged into the slot during assembly; characterized in that: The foolproof mechanism has at least one set of guide structures, and the guide structures are configured to have: A first guide surface formed on an inner wall surface of the slot; A second guide surface formed on the outer side surface of the plug-in portion; During insertion, the second guide surface can slide along the first guide surface so that the inserting portion is inserted into the slot at a set angle.

2. The drone arm connection device according to claim 1, characterized in that: The guide structure has at least two groups; The guide structures of different groups are arranged at intervals.

3. The drone arm connection device according to claim 1, characterized in that: Both sides of the opening end of the slot are respectively provided with outer guiding inclined surfaces inclined in a direction away from the opening; Inner guide slopes are arranged obliquely on both sides of the end of the plug-in portion corresponding to the outer guide slope; The outer guiding inclined surface is arranged in parallel with the inner guiding inclined surface.

4. The drone arm connection device according to claim 1, characterized in that: The second connecting piece is provided with a clamp; The clamp has two clamping ends; The second connecting member is firmly assembled to the drone arm by bringing the two clamping ends into contact.

5. The drone arm connection device according to claim 4, characterized in that: The second connecting member has an adjusting portion; The clamp is sleeved on the adjusting portion; The adjustment portion changes the inner diameter of the second connecting member by adjusting the distance between the two clamping ends.

6. The drone arm connection device according to claim 1, characterized in that: Also includes an electronic control component; The electric control component is built into the drone arm connection device for being electrically connected to the drone body.

7. The drone arm connection device according to claim 6, characterized in that: The electric control assembly includes a first terminal and a second terminal; After the first connector and the second connector are assembled and connected, the first terminal and the second terminal are inserted and connected.

8. The drone arm connection device as claimed in claim 7, characterized in that: The drone arm connection device also has a built-in fixing piece; The fixing member is used to assist the effective plugging of the first terminal and the second terminal.

9. The drone arm connection device according to claim 6, characterized in that: The drone arm connection device is connected to the fuselage in a forward rotation or a reverse rotation.

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