A cross twin-rotor unmanned helicopter and a protection frame thereof

Abstract

The invention discloses a protection frame of a cross twin-rotor unmanned helicopter, comprising a connecting frame for connecting with the fuselage of the cross twin-rotor unmanned helicopter and a protection beam fixedly connected with the connecting frame, wherein the protection beam comprises two longitudinal bars and two transverse bars, and the transverse bars and the longitudinal bars are arranged in a zigzag shape. The cross twin rotor unmanned helicopter provided by the present application adopts the longitudinal bar and the transverse bar distributed in the shape of a well, can avoidthe forward turning and the side turning of the cross twin rotor unmanned helicopter, has high protection performance for the cross twin rotor unmanned helicopter, and enables the cross twin rotor unmanned helicopter to land smoothly on the complex ground. The invention also discloses a cross double-rotor unmanned helicopter, which has strong adaptability to external environment and is difficultto roll over when landing.

Description

technical field The invention relates to the technical field of helicopters, more specifically, to a protective frame. In addition, the present invention also relates to an unmanned cross-rotor helicopter comprising the protective frame. Background technique The cross-rotor unmanned helicopter is prone to unstable landing due to the offset of the center of gravity when landing. In order to improve the stability of the cross-rotor unmanned helicopter when it lands, the cross-rotor unmanned helicopter is usually equipped with a protective frame. The protective frame of the traditional cross-rotor unmanned helicopter mostly adopts a skid structure. However, when the cross-rotor unmanned helicopter lands, especially when the cross-rotor unmanned helicopter is on a complex ground, the cross-rotor unmanned helicopter There is a risk of tilting the fuselage in all directions, and the skid-type protective frame can only prevent the cross-rotor unmanned helicopter from turning forw...

AI Technical Summary

Problems solved by technology

The protective frame of the traditional cross-rotor unmanned helicopter mostly adopts a skid structure. However, when the cross-rotor unmanned helicopter lands, especially when the cross-rotor unmanned helicopter is on a complex ground, the cross-rotor unmanned helicopter There is a risk of tilting the fuselage in all directions, and the skid-type protective frame can only prevent the cross-rotor unmanned helicopter from turning forward. When the center of gravity of the cross-rotor unmanned helicopter tilts sideways, the protective frame cannot Make the intersecting twin-rotor unmanned helicopter land smoothly

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