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Blade protection device for multi-rotor unmanned aerial vehicle and multi-rotor unmanned aerial vehicle

A technology of a multi-rotor unmanned aerial vehicle and a protective device, which is applied in the field of unmanned aerial vehicles, can solve the problems of inconvenient and quick loading and unloading, and the structure of the blade protective cover is complicated, and achieves the effect of avoiding the bombing of the aircraft.

Pending Publication Date: 2022-02-01
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the complex structure of the blade protective cover of the multi-rotor UAV in the prior art and the inconvenient fast loading and unloading problem, the purpose of the present invention is to provide a blade protection device for the multi-rotor UAV and a multi-rotor unmanned aerial vehicle. man-machine

Method used

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  • Blade protection device for multi-rotor unmanned aerial vehicle and multi-rotor unmanned aerial vehicle
  • Blade protection device for multi-rotor unmanned aerial vehicle and multi-rotor unmanned aerial vehicle
  • Blade protection device for multi-rotor unmanned aerial vehicle and multi-rotor unmanned aerial vehicle

Examples

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Effect test

Embodiment 1

[0028] A blade protection device for multi-rotor drones, such as Figure 1-4 As shown, it includes bracket 1 and net cover 2. Among them, the bracket 1 is used to detachably connect with the arm of the multi-rotor UAV when the device is in use, and the net cover 2 is used to enclose the blades of the multi-rotor UAV when the device is in use. Carry out isolation protection.

[0029] In this embodiment, the bracket 1 includes two clamping members 11 each having a receiving groove, and the two clamping members 11 are detachably connected to each other by bolts or screws. And when the two clamping members 11 are connected to each other by bolts or screws, the two accommodating grooves are butted with each other, and the accommodating holes formed after the abutment are adapted to the arms of the multi-rotor UAV. For example, when the cross-section of the side wall of the arm of the multi-rotor UAV is circular, the above-mentioned accommodating groove is correspondingly configur...

Embodiment 2

[0039] A multi-rotor UAV, such as Figure 5 As shown, it includes a fuselage 4, a plurality of arms 5 connected to the fuselage 4, and a lift assembly installed on each arm 5. The lift assembly includes a motor and a paddle mounted on the output shaft of the motor, each Each blade is equipped with the blade protection device disclosed in Embodiment 1. And it can be understood that the output shaft of the motor passes through the protective net 25 connected to the lower shroud ring 21 and then connects with the paddle located in the accommodating gap. In addition, a notch is provided on the clamping member 11, so that after the two clamping members 11 are docked, the motor can pass through the through hole surrounded by the two notches.

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Abstract

The invention discloses a blade protection device for a multi-rotor unmanned aerial vehicle and the multi-rotor unmanned aerial vehicle, and belongs to the field of unmanned aerial vehicles. The blade protection device comprises a support used for being detachably connected with vehicle arms of the multi-rotor unmanned aerial vehicle and a mesh cover fixedly connected with the support; the net cover comprises an upper cover ring and a lower cover ring which are arranged on the outer sides of blades of the multi-rotor unmanned aerial vehicle in a surrounding mode, the lower cover ring is fixedly connected with the support through a connecting piece, the upper cover ring is detachably connected to the upper portion of the lower cover ring, and protective nets are arranged on the upper end face of the upper cover ring and the lower end face of the lower cover ring correspondingly. And an accommodating gap is formed between the two protective nets to accommodate blades of the multi-rotor unmanned aerial vehicle. The multi-rotor unmanned aerial vehicle comprises a vehicle body, a plurality of vehicle arms connected to the vehicle body and lifting force assemblies installed on all the vehicle arms, each lifting force assembly comprises a motor and a blade, and each blade is provided with a blade protection device. The blade protection device is reasonable in structural design, the blade can be protected, and quick disassembly and assembly are facilitated.

Description

technical field [0001] The invention relates to the field of unmanned aerial vehicles, in particular to a blade protection device for a multi-rotor unmanned aerial vehicle and the multi-rotor unmanned aerial vehicle. Background technique [0002] Generally, UAVs are divided into three categories: fixed-wing aircraft, single-rotor helicopters, and multi-rotor helicopters. In the early days, fixed-wing aircraft and helicopters dominated. As the theory of multi-rotors has matured in the past decade, multi-rotor UAVs with simple assembly and flexible control have gradually become people's favorite UAVs. [0003] The propeller of a multi-rotor UAV is an important part of the power system, and it is a necessary accessory to maintain the stability of the flight power. During the flight, ensuring the integrity of the propeller is one of the important conditions to prevent the UAV from blowing up. In addition, the high-speed rotation of the propeller is also an important factor for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C27/20B64C27/14
CPCB64C27/20B64C27/006B64C27/14B64U50/19B64U30/20B64U10/10
Inventor 龚帮民艾剑良
Owner FUDAN UNIV
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