Rotor arm quick connecting structure of multi-rotor unmanned aerial vehicle and unmanned aerial vehicle

Abstract

The utility model relates to the technical field of unmanned aerial vehicles, in particular to a multi-rotor unmanned aerial vehicle rotor arm quick connection structure and an unmanned aerial vehicle, the quick connection structure comprises clamping plates arranged on the two sides of a rotor arm, and the surfaces, connected with the rotor arm, of the clamping plates are curved surfaces attached to the outer surface of the rotor arm; the elastic piece is fixedly connected to the clamping plate and is used for tightly pressing the rotor wing arm on the rotor wing arm; the base is in the shape of a cylinder with openings formed in the two ends; the opening and closing assembly is arranged on the base and used for controlling the clamping plates to move oppositely so that the clamping plates can be separated from the rotor arms; the rotor arm quick connection structure of the multi-rotor unmanned aerial vehicle disclosed by the embodiment of the utility model can be used for quickly connecting the rotor arm of the unmanned aerial vehicle, so that the rotor arm of the unmanned aerial vehicle can be quickly disassembled and assembled, and the maintenance and the use of the unmanned aerial vehicle are greatly facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, in particular to a rotor arm quick-connect structure of a multi-rotor unmanned aerial vehicle and the unmanned aerial vehicle. Background Art

[0002] A multi-rotor drone is an unmanned aerial vehicle with three or more rotor arms. With the development of drone technology, drones are being used in more and more fields, such as express delivery, agriculture, and photography.

[0003] At present, the rotor arms of multi-rotor drones are generally fixed to the drone body by bolts, which is not convenient to disassemble, making the drone inconvenient to use. For example, when maintaining the wings of the drone, it is inconvenient to disassemble and assemble, and multiple bolts need to be removed; for example, some large multi-rotor drones have wings installed on the body in a divergent shape, making the drone large and inconvenient to transport. If the wings of the drone can be quickly disassembled and assembled, the size of the drone can be reduced during transportation without affecting the operation. Therefore, the present application proposes a multi-rotor drone rotor arm disassembly structure and a drone. Utility Model Content

[0004] The utility model aims to provide a multi-rotor UAV rotor arm quick-connect structure and a UAV, so as to solve the problem of inconvenient assembly and disassembly of the UAV rotor arm.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A multi-rotor UAV rotor arm quick-connect structure, used for fixing the rotor arm in the UAV, the quick-connect structure comprising:

[0007] Clamping plates are arranged on both sides of the rotor arm, and the surfaces of the clamping plates connected to the rotor arm are curved surfaces that fit the outer surface of the rotor arm;

[0008] an elastic member fixedly connected to the clamping plate, used for pressing the rotor arm onto the rotor arm;

[0009] A base, the base is a cylinder with openings at both ends, the clamping plate and the elastic member are located inside the base, the two ends of the elastic member are respectively abutted against the clamping plate and the elastic member, and at least one elastic member is provided on each side of the rotor arm;

[0010] An opening and closing assembly arranged on the base is used to control the opposite movement of the clamping plates to make them disengage from the rotor arm, wherein the opening and closing assembly includes an opening and closing plate and two opening and closing columns, the opening and closing plate is provided with two arc holes, the arc holes are evenly distributed on the opening and closing plate in a divergent shape in the circumferential direction, the opening and closing plate is rotatably connected to the base via a rotating shaft, the two opening and closing columns are respectively fixedly connected to the clamping plates on both sides of the rotor arm, the opening and closing columns are slidably connected in the arc holes, and a limiting hole is also provided on the base to limit the opening and closing column, and the opening and closing column can only move in a direction perpendicular to the clamping plate.

[0011] Furthermore, a limiting groove is provided at the end of the rotor arm, and the limiting groove is located on both sides of the rotor arm. A limiting protrusion is provided on a side where the clamping plate is connected to the rotor arm, and the limiting protrusion is located in the limiting groove.

[0012] Furthermore, at least two limiting grooves are provided on each side of the rotor arm, and the number of the limiting protrusions is the same as the number of the limiting grooves.

[0013] Furthermore, the elastic member is a spring structure, and the elastic member is installed on the clamping plate through a guide column. The elastic member is sleeved on the guide column, one end of the guide column is fixedly connected to the clamping plate, and the other end of the guide column is slidably connected to the base.

[0014] Furthermore, the base comprises:

[0015] A first mounting shell, wherein the first mounting shell is U-shaped, and a first mounting portion is disposed on an outer side of the first mounting shell for connecting to a drone;

[0016] The second mounting shell is U-shaped, and the two are connected to form a cylindrical structure. The outer side of the second mounting shell is provided with a second mounting portion for connecting the drone. The first mounting shell and the second mounting shell are detachably connected.

[0017] Furthermore, the opening and closing assembly also includes:

[0018] The connecting plate is an L-shaped plate, the connecting plate is fixedly connected to the middle position of the clamping plate, and the opening and closing column is arranged on the connecting plate.

[0019] Furthermore, the opening and closing assembly also includes a handle, and the handle is fixed to the end of the rotating shaft.

[0020] The utility model also discloses a drone, the rotor arms of which are connected by the above-mentioned multi-rotor drone rotor arm quick-connect structure.

[0021] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0022] The multi-rotor UAV rotor arm quick connection structure disclosed in the embodiment of the utility model can quickly connect the rotor arm of the UAV, so that the rotor arm of the UAV can be quickly disassembled and installed, which greatly facilitates the maintenance and use of the UAV. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The present invention is a schematic diagram of the overall structure of a multi-rotor UAV rotor arm quick-connect structure disclosed in an embodiment of the present invention.

[0024] Figure 2 This is a front view of the rotor arm quick-connect structure of a multi-rotor UAV disclosed in an embodiment of the utility model.

[0025] Figure 3 This is a top view of the rotor arm quick-connect structure of a multi-rotor UAV disclosed in an embodiment of the utility model.

[0026] Figure 4 This is a schematic diagram of the internal structure of the rotor arm quick-connect structure of a multi-rotor UAV disclosed in an embodiment of the utility model.

[0027] Figure 5 This is a structural schematic diagram of the rotor arm in the rotor arm quick-connect structure of a multi-rotor UAV disclosed in an embodiment of the utility model.

[0028] Figure 6 The present invention is a schematic structural diagram of a clamping plate in a quick-connect structure of a rotor arm of a multi-rotor UAV disclosed in an embodiment of the present utility model.

[0029] Figure 7 This is a structural schematic diagram of the first mounting shell in the multi-rotor UAV rotor arm quick-connect structure disclosed in an embodiment of the utility model.

[0030] Figure 8 It is a structural schematic diagram of the second mounting shell in the multi-rotor UAV rotor arm quick-connect structure disclosed in an embodiment of the utility model.

[0031] Reference numerals:

[0032] 100, rotor arm; 101, limiting groove; 200, clamping plate; 201, limiting protrusion; 202, first threaded hole; 300, elastic member; 310, guide column; 400, base; 410, first mounting shell; 411, first mounting portion; 412, buckle hole; 413, limiting opening; 414, first guide hole; 420, second mounting shell; 421, second mounting portion; 422, buckle head; 423, limiting head; 424, second guide hole; 425, shaft hole; 426, limiting hole; 500, opening and closing assembly; 510, connecting plate; 511, opening and closing column; 520, opening and closing plate; 521, arc hole; 522, shaft; 530, handle. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0034] Example 1

[0035] like Figures 1 to 4 As shown, an embodiment of the utility model provides a multi-rotor UAV rotor arm quick connection structure for fixing a rotor arm 100 in the UAV, and the quick connection structure includes:

[0036] The clamping plates 200 are arranged on both sides of the rotor arm 100, and the surface where the clamping plates 200 are connected to the rotor arm 100 is a curved surface that fits the outer surface of the rotor arm 100;

[0037] an elastic member 300 fixedly connected to the clamping plate 200, used to press the rotor arm 100 onto the rotor arm 100;

[0038] A base 400, wherein the base 400 is in a cylindrical shape with openings at both ends, the clamping plate 200 and the elastic member 300 are located inside the base 400, and both ends of the elastic member 300 abut against the clamping plate 200 and the elastic member 300, respectively, and at least one elastic member 300 is disposed on each side of the rotor arm 100;

[0039] The opening and closing assembly 500 arranged on the base 400 is used to control the opposite movement of the clamping plate 200 to make it disengage from the rotor arm 100, wherein the opening and closing assembly 500 includes an opening and closing plate 520 and two opening and closing columns 511, and the opening and closing plate 520 is provided with two arc holes 521, and the arc holes 521 are evenly distributed on the opening and closing plate 520 in a divergent shape in the circumferential direction, and the opening and closing plate 520 is rotatably connected to the base 400 through a rotating shaft 522, and the two opening and closing columns 511 are respectively fixedly connected to the clamping plates 200 on both sides of the rotor arm 100, and the opening and closing columns 511 are slidably connected in the arc holes 521, and a limiting hole 426 is also provided on the base 400 to limit the opening and closing column 511, and the opening and closing column 511 can only move in a direction perpendicular to the clamping plate 200.

[0040] In this embodiment, when connecting the rotor arm 100, Figure 4, the clamping plate 200 moves back and forth under the drive of the opening and closing column 511. At this time, the distance between the clamping plates 200 can be used to install the rotor arm 100. When the rotor arm 100 is inserted into the clamping plate 200, the opening and closing column 511 is limited by the limit hole 426 so that the opening and closing column 511 can only move in a straight line. The clamping plate 200 is between the clamping plates 200, and the opening and closing plate 520 is loosened. The elastic member 300 presses the clamping plate 200 onto the rotor arm 100 under the action of the rebound force. The opening and closing plate 520 is driven to rotate by the clamping plate 200. When disassembling the rotor arm 100, the opening and closing plate 520 is rotated clockwise to disengage the clamping plate 200 from the rotor arm 100, thereby removing the rotor arm 100. When the rotor arm 100 is connected to the drone, the clamping plate 200 always clamps the rotor arm 100 under the action of the elastic member 300, thereby preventing the rotor arm 100 from loosening. The base 400 is installed on the drone.

[0041] Specifically, in this embodiment, the rotor arm 100 is tubular, and the wires of the electronic devices on the rotor arm 100 pass through the rotor arm 100 and are connected to the electronic structure inside the drone through an electrical interface. After the rotor arm 100 is removed, the connection between the electronic devices on the rotor arm 100 and the electronic structure inside the fuselage is disconnected by pulling out the electrical interface, so that the rotor arm 100 can be placed alone.

[0042] As a preferred implementation in this embodiment, Figure 5 and Figure 6 As shown, a limiting groove 101 is provided at the end of the rotor arm 100, and the limiting groove 101 is located on both sides of the rotor arm 100. A limiting protrusion 201 is provided on one side of the clamping plate 200 connected to the rotor arm 100, and the limiting protrusion 201 is a protrusion provided on the inner side of the clamping plate 200. The limiting protrusion 201 is located in the limiting groove 101 to limit the axial direction of the clamping plate 200.

[0043] Specifically, the cross section of the rotor arm 100 is waist-shaped, the clamping plate 200 is U-shaped, the clamping plate 200 is attached to the outer side of the rotor arm 100, the limiting groove 101 is concave, the limiting protrusion 201 is a protrusion, and the limiting protrusion 201 is clamped in the limiting groove 101;

[0044] At least two limiting grooves 101 are disposed on each side of the rotor arm 100 , and the number of the limiting protrusions 201 on each side is the same as the number of the limiting grooves 101 .

[0045] Preferably, in this embodiment, the elastic member 300 is a spring structure, the elastic member 300 is installed on the clamping plate 200 through a guide column 310, the elastic member 300 is sleeved on the guide column 310, one end of the guide column 310 is fixedly connected to the clamping plate 200, the other end of the guide column 310 is slidably connected to the base 400, the clamping plate 200 is provided with a first threaded hole 202, and the guide column 310 is fixed to the first threaded hole 202 through a threaded connection;

[0046] In this embodiment, three guide posts 310 and an elastic member 300 are provided on each of the clamping plates 200 to increase the pressure of the clamping plates 200;

[0047] In other structures of this embodiment, the elastic member 300 may also be a V-shaped spring sheet structure, and two ends of the V-shaped spring sheet are respectively abutted against the clamping plate 200 and the base 400 .

[0048] As a preferred implementation in this embodiment, Figure 1 , Figure 2 , Figure 7 and Figure 8 As shown, the base 400 includes a first mounting shell 410 and a second mounting shell 420, the first mounting shell 410 and the second mounting shell 420 are both U-shaped, and the two are connected to form a cylindrical structure, the first mounting shell 410 is provided with a first mounting portion 411 on the outer side, and the second mounting shell 420 is provided with a second mounting portion 421 on the outer side, the first mounting portion 411 and the second mounting portion 421 are connected to the body of the UAV, and are used to install the quick connection structure on the UAV, the first mounting shell 410 is provided with a first guide hole 414, and the second mounting shell 420 is provided with a second guide hole 424, the first guide hole 414 and the second guide hole 424 are used to connect the guide column 310, the second mounting shell 420 is provided with a shaft hole 425, the opening and closing plate 520 is rotatably connected to the shaft hole 425, the second mounting shell 420 is also provided with a limiting hole 426, and the opening and closing column 511 is slidably connected in the limiting hole 426;

[0049] Specifically, in this embodiment, the structures of the first mounting portion 411 and the second mounting portion 421 are designed according to the structure of the drone, and the specific structures are not limited. For example, in this embodiment, the first mounting portion 411 and the second mounting portion 421 are both plate-shaped structures, and the first mounting portion 411 and the second mounting portion 421 are provided with through-hole structures. The first mounting portion 411 and the second mounting portion 421 are fixedly connected to the body of the drone by bolts. In other embodiments, the first mounting portion 411 and the second mounting portion 421 may also be other structures, such as a buckle structure, etc.;

[0050] The first mounting shell 410 and the second mounting shell 420 are connected by a buckle structure. The first mounting shell 410 is provided with a buckle hole 412, and the buckle head 422 is provided with a buckle head 422. When the first mounting shell 410 and the second mounting shell 420 are connected, the buckle head 422 is buckled into the buckle hole 412;

[0051] Preferably, a limit head 423 is provided at the portion where the second mounting shell 420 is connected to the first mounting shell 410 , a limit opening 413 is provided on the first mounting shell 410 , and the limit hole 426 and the shaft hole 425 are provided on the limit head 423 .

[0052] Specifically, the opening and closing plate 520 is a disc structure, the arc hole 521 passes through the opening and closing plate 520, and a rotating shaft 522 is provided on the opening and closing plate 520, and the rotating shaft 522 is rotatably connected to the rotating shaft hole 425;

[0053] Preferably, the opening and closing assembly 500 further includes a connecting plate 510, which is an L-shaped plate. The connecting plate 510 is fixedly connected to the middle position of the clamping plate 200 through a guide column 310. The guide column 310 passes through the connecting plate 510 and presses it onto the clamping plate 200. The opening and closing column 511 is arranged on the connecting plate 510. The arrangement of the connecting plate 510 can make the clamping plate 200 evenly stressed, so that the stress point is located at the center, thereby preventing the clamping plate 200 from deflecting.

[0054] Preferably, the opening and closing assembly 500 further includes a handle 530 , and the handle 530 is fixed to the end of the rotating shaft 522 by interference fit.

[0055] Example 2

[0056] As one of the embodiments of the utility model, this embodiment also discloses a UAV, wherein the rotor arm 100 is installed by the rotor arm quick-connect structure of the rotor UAV described in the embodiment, wherein the first mounting portion 411 and the second mounting portion 421 are fixedly connected to the body of the UAV by bolts.

[0057] It should be noted that, in the present invention, the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the invention of the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-rotor UAV rotor arm quick connection structure, used to fix the rotor arm in the UAV, characterized in that: The quick-connect structure comprises: Clamping plates are arranged on both sides of the rotor arm, and the surfaces of the clamping plates connected to the rotor arm are curved surfaces that fit the outer surface of the rotor arm; an elastic member fixedly connected to the clamping plate, used for pressing the rotor arm onto the rotor arm; A base, the base is a cylinder with openings at both ends, the clamping plate and the elastic member are located inside the base, the two ends of the elastic member are respectively abutted against the clamping plate and the elastic member, and at least one elastic member is provided on each side of the rotor arm; An opening and closing assembly arranged on the base is used to control the opposite movement of the clamping plates to make them disengage from the rotor arm, wherein the opening and closing assembly includes an opening and closing plate and two opening and closing columns, the opening and closing plate is provided with two arc holes, the arc holes are evenly distributed on the opening and closing plate in a divergent shape in the circumferential direction, the opening and closing plate is rotatably connected to the base via a rotating shaft, the two opening and closing columns are respectively fixedly connected to the clamping plates on both sides of the rotor arm, the opening and closing columns are slidably connected in the arc holes, and a limiting hole is also provided on the base to limit the opening and closing column, and the opening and closing column can only move in a direction perpendicular to the clamping plate.

2. The multi-rotor UAV rotor arm quick connection structure according to claim 1, characterized in that: A limiting groove is arranged at the end of the rotor arm, and the limiting groove is located at both sides of the rotor arm. A limiting protrusion is arranged on one side of the clamping plate connected to the rotor arm, and the limiting protrusion is located in the limiting groove.

3. The multi-rotor UAV rotor arm quick connection structure according to claim 2, characterized in that: At least two limiting grooves are arranged on each side of the rotor arm, and the number of the limiting protrusions is the same as the number of the limiting grooves.

4. The multi-rotor UAV rotor arm quick connection structure according to claim 1, characterized in that: The elastic member is a spring structure, and the elastic member is installed on the clamping plate through a guide column. The elastic member is sleeved on the guide column. One end of the guide column is fixedly connected to the clamping plate, and the other end of the guide column is slidably connected to the base.

5. The multi-rotor UAV rotor arm quick connection structure according to claim 1, characterized in that: The base comprises: A first mounting shell, wherein the first mounting shell is U-shaped, and a first mounting portion is disposed on an outer side of the first mounting shell for connecting to a drone; The second mounting shell is U-shaped, and the two are connected to form a cylindrical structure. The outer side of the second mounting shell is provided with a second mounting portion for connecting the drone. The first mounting shell and the second mounting shell are detachably connected.

6. The multi-rotor UAV rotor arm quick connection structure according to any one of claims 1 to 5, characterized in that: The opening and closing assembly also includes: The connecting plate is an L-shaped plate, the connecting plate is fixedly connected to the middle position of the clamping plate, and the opening and closing column is arranged on the connecting plate.

7. The multi-rotor UAV rotor arm quick connection structure according to any one of claims 1 to 5, characterized in that: The opening and closing assembly further comprises a handle, which is fixed to the end of the rotating shaft.

8. A drone, characterized in that: The rotor arm of the drone is connected by the multi-rotor drone rotor arm quick-connect structure described in any one of claims 1-7.

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