The invention discloses a propeller and an unmanned aerial vehicle, the propeller comprises a blade and an anti-injury piece, the blade can rotate around a rotating axis, the blade is provided with a blade tip, the anti-injury piece is arranged on the blade tip, in the rotating direction of the blade, the anti-injury piece is provided with an anti-injury part and a flow guide part located behind the anti-injury part, and the flow guide part is located behind the anti-injury part. The anti-injury part is provided with a cambered surface which is convexly arranged in the direction deviating from the flow guide part, the flow guide part is gradually shrunk in the direction deviating from the anti-injury part, and the curvature of the cambered surface is smaller than that of the peripheral surface of the flow guide part in the rotating direction of the paddle. According to the technical scheme, the situation that the propeller tip scratches the human body is reduced, and therefore the harm of the propeller to the human body is reduced.
本发明公开一种螺旋桨和无人机,其中螺旋桨包括:桨叶和防伤件,桨叶可绕转动轴线转动,所述桨叶具有桨尖,防伤件设于所述桨尖,在所述桨叶的转动方向上,所述防伤件具有防伤部、及位于所述防伤部后方的导流部,所述防伤部具有朝背离所述导流部方向凸设的弧面,所述导流部在朝背离所述防伤部的方向呈渐缩设置,在所述桨叶的转动方向上,所述弧面的曲率小于所述导流部的外周面的曲率。本发明的技术方案旨在减少桨尖划伤人体的情况发生,从而降低螺旋桨对人体的伤害。
Propeller and unmanned aerial vehicle
螺旋桨和无人机
2022-12-09
Patent
Electronic Resource
Chinese
IPC: | B64C AEROPLANES , Flugzeuge |
Propeller blade, unmanned aerial vehicle propeller and unmanned aerial vehicle
European Patent Office | 2024
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