Unmanned aerial vehicle arm anti-loosening structure and unmanned aerial vehicle

Abstract

The utility model relates to the technical field of unmanned aerial vehicles, and particularly discloses an unmanned aerial vehicle arm anti-loosening structure and an unmanned aerial vehicle, the unmanned aerial vehicle arm anti-loosening structure comprises a spiral fastening unit, the spiral fastening unit comprises an arm connecting module and a vehicle body connecting module, one end of the arm connecting module is connected with an arm, one end of the vehicle body connecting module is connected with a vehicle body fixing seat, and the other end of the vehicle body connecting module is connected with a vehicle body. The vehicle arm connecting module and the vehicle body connecting module are connected through a screw, and a rotation stopping device is arranged on one side of the screw position of the vehicle arm connecting module and the vehicle body connecting module. According to the unmanned aerial vehicle arm anti-loosening structure, the vehicle arm connecting module and the vehicle body connecting module are spirally connected, and then the rotation stopping device is used for preventing the vehicle arm connecting module and the vehicle body connecting module from rotating again, so that loosening between the vehicle arm connecting module and the vehicle body connecting module is prevented; and the arm connecting module and the body connecting module are in spiral connection, so that relative displacement between the arm connecting module and the body connecting module under vibration is prevented, and the whole arm structure is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, and more specifically, to an anti-loosening structure for the arm of an unmanned aerial vehicle. Background Technique

[0002] Rotary-wing unmanned aerial vehicles are widely used, such as for surveying, carrying goods, and even carrying people. In existing unmanned aerial vehicles, usually four rotors are used for lifting, and the four rotors are installed on the unmanned aerial vehicle body through the arms. Moreover, the four rotors can be disassembled and assembled relative to the unmanned aerial vehicle body to facilitate reducing the packing size of the unmanned aerial vehicle and facilitating transportation and storage.

[0003] However, in the installation structure of the arms of unmanned aerial vehicles on the market, usually the arm is inserted into the carbon tube on the body, and then the quick-release lock is used to tighten the clamps on the two carbon tubes to complete the locking. However, during the flight of the unmanned aerial vehicle, the operation of the motor is prone to vibration, which causes the entire arm to vibrate, resulting in easy displacement between the two carbon tubes, thus affecting the operation of the unmanned aerial vehicle. Summary of the Utility Model

[0004] In order to overcome the defects existing in the prior art, the utility model provides an anti-loosening structure for the arm of an unmanned aerial vehicle, aiming to solve the problems in the above-mentioned prior art.

[0005] The technical solution adopted by the utility model to solve its technical problems is: an anti-loosening structure for the arm of an unmanned aerial vehicle, including a spiral fastening unit. The spiral fastening unit includes an arm connection module and a body connection module. One end of the arm connection module is connected to an arm, one end of the body connection module is connected to a body fixing seat, and the arm connection module and the body connection module are connected by a spiral. A rotation stopper is arranged on one side of the spiral of the arm connection module and the body connection module.

[0006] In the above anti-loosening structure for the arm of an unmanned aerial vehicle, the body connection module includes a fixing seat connection pipe. The body fixing seat is inserted into one end of the fixing seat connection pipe. The other end of the fixing seat connection pipe is provided with an external thread section. The arm connection module is threadedly connected to the external thread section. The rotation stopper is installed on the side of the external thread section away from the arm connection module.

[0007] In the above anti-loosening structure for the arm of an unmanned aerial vehicle, the arm connection module includes an arm connection pipe. The arm is sleeved on one end of the arm connection pipe. The other end of the arm connection pipe is sleeved with a screw sleeve that matches the external thread section. The screw sleeve is provided with a reduced-diameter opening near the arm. A limit ring is arranged on the edge of the arm connection pipe near the external thread section.

[0008] In the above-mentioned anti-loosening structure of the drone arm, a clamping groove is provided on the outer wall of one end of the screw sleeve close to the anti-rotation device, so that when the screw sleeve is tightened with the external thread section, the anti-rotation device corresponds to the clamping groove, and the anti-rotation device is clamped in the clamping groove.

[0009] In the above-mentioned anti-loosening structure of the drone arm, the anti-rotation device includes a mounting seat installed on the outer wall of the fixed seat connecting pipe. A wrench is hinged to the mounting seat through a rotating shaft. A torsion spring sleeved on the rotating shaft is arranged between the wrench and the fixed seat connecting pipe. A clamping block capable of being inserted into the clamping groove is arranged at one end of the wrench close to the screw sleeve.

[0010] In the above-mentioned anti-loosening structure of the drone arm, an insertion connecting pipe is provided at one end of the body fixed seat close to the fixed seat connecting pipe. The insertion connecting pipe is inserted into the fixed seat connecting pipe, and corresponding first screw holes are provided on both the insertion connecting pipe and the fixed seat connecting pipe.

[0011] In the above-mentioned anti-loosening structure of the drone arm, corresponding second screw holes are provided on both the arm and the arm connecting pipe.

[0012] A drone includes the above-mentioned anti-loosening structure of the drone arm, and further includes a drone body. The body fixed seat is fixedly installed on the drone body.

[0013] The beneficial effect of the present utility model is that by spirally connecting the arm connection module and the body connection module, and then using the anti-rotation device to prevent the arm connection module and the body connection module from rotating again, thereby preventing loosening between the arm connection module and the body connection module. Moreover, since the arm connection module and the body connection module are spirally connected, relative displacement between the two under vibration is prevented, making the entire arm structure more stable. Description of the Drawings

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the anti-loosening structure of the drone arm of the present utility model.

[0015] Figure 2 It is an exploded structural schematic diagram of the anti-loosening structure of the drone arm of the present utility model.

[0016] Figure 3 It is an internal structural schematic diagram of the arm connection module and the body connection module.

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the arm connection module.

[0018] Figure 5 It is a three-dimensional structural schematic diagram of the body connection module and the anti-rotation device.

[0019] In the figure: the body fixing base 1, the fixing base connecting pipe 2, the arm 3, the arm connecting pipe 4, the screw sleeve 5, the anti-rotation device 6, the insertion connecting pipe 7, the limiting ring 8, the clamping groove 9, the mounting base 10, the wrench 11, the clamping block 12, the external thread section 13. Specific embodiments

[0020] The following further describes the specific embodiments of the present utility model in conjunction with the accompanying drawings. It should be noted here that the description of these embodiments is used to help understand the present utility model, but does not constitute a limitation to the present utility model. In addition, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0021] Combined with Figures 1 to 5 Shown is an anti-loosening structure for a drone arm, including a spiral fastening unit. The spiral fastening unit includes an arm connection module and a body connection module. One end of the arm connection module is connected to the arm 3, and one end of the body connection module is connected to the body fixing base 1. The arm connection module and the body connection module are connected by a spiral, and an anti-rotation device 6 is provided on one side of the spiral of the arm connection module and the body connection module; by spirally connecting the arm connection module and the body connection module, and then using the anti-rotation device 6 to prevent the arm connection module and the body connection module from rotating again, thereby preventing loosening between the arm connection module and the body connection module. Moreover, since the arm connection module and the body connection module are spirally connected, relative displacement between the two under vibration is prevented, making the entire arm structure more stable.

[0022] The body connection module of this embodiment includes a fixing base connecting pipe 2. The body fixing base 1 is inserted into one end of the fixing base connecting pipe 2. The other end of the fixing base connecting pipe 2 is provided with an external thread section 13. The arm connection module is threadedly connected to the external thread section 13, and the anti-rotation device 6 is installed on the side of the external thread section 13 away from the arm connection module; this enables the arm connection module to be connected to the fixing base connecting pipe 2 through the external thread section 13. After tightening, it is convenient for the anti-rotation device 6 to prevent rotation and prevent the arm connection module from accidentally disengaging from the external thread section 13.

[0023] The arm connection module of this embodiment includes an arm connecting pipe 4. The arm 3 is sleeved on one end of the arm connecting pipe 4. The other end of the arm connecting pipe 4 is sleeved with a screw sleeve 5 that cooperates with the external thread section 13. The end of the screw sleeve 5 close to the arm 3 is provided with a reduced-diameter opening, and a limiting ring 8 is provided on the edge of the arm connecting pipe 4 close to the external thread section 13; the inner diameter of the screw sleeve 5 is greater than the outer diameter of the arm connecting pipe 4, and the inner diameter of the reduced-diameter opening is less than the outer diameter of the limiting ring 8, so that when the screw sleeve 5 is threadedly connected to the external thread section 13, the arm connecting pipe 4 and the external thread section 13 of the fixing base connecting pipe 2 can be tightly joined together, making the entire arm structure more compact and stable.

[0024] On one end outer wall of the sleeve 5 near the anti-rotation device 6 in this embodiment, a clamping groove 9 is provided, so that when the sleeve 5 is screwed tightly with the external thread section 13, the anti-rotation device 6 corresponds to the clamping groove 9, and the anti-rotation device 6 is clamped in the clamping groove 9; after the sleeve 5 is threadedly connected to the external thread section 13, the anti-rotation device 6 is used to prevent the sleeve 5 from rotating, so that the arm connecting pipe 4 and the fixed seat connecting pipe 2 are kept in a tight connection state, and even after a long flight, the sleeve 5 can be prevented from rotating.

[0025] Specifically, the anti-rotation device 6 includes a mounting seat 10 installed on the outer wall of the fixed seat connecting pipe 2. A wrench 11 is hinged to the mounting seat 10 through a rotating shaft. A torsion spring sleeved on the rotating shaft is arranged between the wrench 11 and the fixed seat connecting pipe 2. One end of the wrench 11 close to the sleeve 5 is provided with a clamping block 12 that can be inserted into the clamping groove 9; by pressing the wrench, the clamping block 12 can swing, so as to be conveniently inserted into or disengaged from the clamping groove 9, the operation is simpler, the overall structure is simpler, and the wind resistance during flight is prevented from increasing.

[0026] In some embodiments, one end of the body fixing seat 1 close to the fixed seat connecting pipe 2 is provided with an insertion pipe 7. The insertion pipe 7 is inserted into the fixed seat connecting pipe 2. Corresponding first screw holes are provided on both the insertion pipe 7 and the fixed seat connecting pipe 2; so that the insertion pipe 7 and the fixed seat connecting pipe 2 can be further disassembled and assembled through the first screw holes; corresponding second screw holes are provided on both the arm 3 and the arm connecting pipe 4, so that the arm 3 and the arm connecting pipe 4 can be further disassembled and assembled through the second screw holes.

[0027] The anti-loosening structure of the drone arm in this embodiment can be applied to a drone. The drone includes a drone body, and the body fixing seat 1 is fixedly installed on the drone body, so that the drone can disassemble and assemble the arm to facilitate transportation, and at the same time, the arm can be prevented from loosening or shifting during flight.

[0028] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present invention, various changes, modifications, substitutions and variations made to these embodiments still fall within the protection scope of the present invention.

Claims

1. An anti-loosening structure for a drone arm, characterized in that, It includes a spiral fastening unit, and the spiral fastening unit includes an arm connection module and a body connection module. One end of the arm connection module is connected to an arm (3), one end of the body connection module is connected to a body fixing base (1), the arm connection module and the body connection module are spirally connected, and a rotation stopper (6) is arranged on one side of the spiral part between the arm connection module and the body connection module.

2. The anti-loosening structure of the drone arm according to claim 1, characterized in that, The body connection module includes a fixing base connection pipe (2). The body fixing base (1) is inserted into one end of the fixing base connection pipe (2). The other end of the fixing base connection pipe (2) is provided with an external thread section (13). The arm connection module is threadedly connected to the external thread section (13), and the rotation stopper (6) is installed on the side of the external thread section (13) away from the arm connection module.

3. The anti-loosening structure of the drone arm according to claim 2, characterized in that, The arm connection module includes an arm connection pipe (4). The arm (3) is sleeved on one end of the arm connection pipe (4). A bushing (5) matched with the external thread section (13) is sleeved on the other end of the arm connection pipe (4). A reduced-diameter port is arranged at one end of the bushing (5) close to the arm (3). A limit ring (8) is arranged on the edge of one end of the arm connection pipe (4) close to the external thread section (13).

4. The anti-loosening structure of the drone arm according to claim 3, characterized in that, A clamping groove (9) is arranged on the outer wall of one end of the bushing (5) close to the rotation stopper (6). When the bushing (5) and the external thread section (13) are in a tightened state, the rotation stopper (6) corresponds to the clamping groove (9), and the rotation stopper (6) is clamped in the clamping groove (9).

5. The anti-loosening structure of the drone arm according to claim 4, characterized in that, The rotation stopper (6) includes a mounting seat (10) installed on the outer wall of the fixing base connection pipe (2). A wrench (11) is hinged to the mounting seat (10) through a rotating shaft. A torsion spring sleeved on the rotating shaft is arranged between the wrench (11) and the fixing base connection pipe (2). A clamping block (12) capable of being inserted into the clamping groove (9) is arranged at one end of the wrench (11) close to the bushing (5).

6. The anti-loosening structure of the drone arm according to claim 2, characterized in that, An insertion pipe (7) is arranged at one end of the body fixing base (1) close to the fixing base connection pipe (2). The insertion pipe (7) is inserted into the fixing base connection pipe (2). Corresponding first screw holes are formed in both the insertion pipe (7) and the fixing base connection pipe (2).

7. The anti-loosening structure of a drone arm according to claim 3, characterized in that, Corresponding second screw holes are formed in both the arm (3) and the arm connection pipe (4).

8. A drone, comprising the anti-loosening structure for the drone arm according to any one of claims 1-7, characterized in that, It further includes a drone body, and the body fixing base (1) is fixedly installed on the drone body.

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