Cantilever folding mechanism of electric unmanned aerial vehicle

Abstract

The invention relates to a cantilever folding mechanism of an electric unmanned aerial vehicle. The cantilever folding mechanism comprises a first part, a second part, a rotating shaft and an elastichook, wherein the first part is connected with a vehicle body of the electric unmanned aerial vehicle; the second part is connected with a cantilever of the electric unmanned aerial vehicle; the rotating shaft is used for connecting the first part and the second part together; the elastic hook is used for connecting the first part and the second part together; the first part is provided with a first concave part and a first convex part relative to the second part; the second part is provided with a second concave part and a second convex part relative to the first part; and the shape of the first concave part corresponds to that of the second convex part, and the shape of the second concave part corresponds to that of the first convex part. According to the cantilever folding mechanism disclosed by the invention, through the closing of convex-concave structures, a meshing relation is formed, so that the possibility that malposition is generated in a circumferential direction is avoided, and adding external reinforcing weight is not needed; and the connection of a detachable structure cannot be influenced, and the connecting reliability of the folding mechanism is improved.

Description

technical field [0001] The invention relates to the technical field of unmanned aerial vehicles, in particular to a multi-rotor electric unmanned aerial vehicle, and in particular to a cantilever folding mechanism of the electric unmanned aerial vehicle. Background technique [0002] Multi-rotor electric UAV is an unmanned aerial vehicle with multiple cantilevers. It has the advantages of simple structure, low noise, flexible maneuverability, fast response, and low operation requirements. It is widely used in agricultural plant protection, forest fire monitoring, aerial Photography, land surveying, post-disaster damage assessment and other tasks. [0003] Most of the current electric UAVs are multi-axis UAVs, such as four-axis and six-axis, etc. The take-off weight of the whole machine is very small, but the cantilever is very large, which brings certain advantages to the transportation, carrying and storage of UAVs. difficulty. Therefore, in order to improve the portabili...

AI Technical Summary

Problems solved by technology

There is a problem in these folding mechanisms of the prior art, that is, the positioning between the first part and the second part is basically carried out by the rotating shaft. Because the rotating shaft will rotate relative to these two parts, there will always be a certain gap. The relative displacement between the two parts where the rotating shaft is positioned is easy to occur, so other connection methods such as bolts have to be considered for reinforcement. In addition, the force generated by the displacement of these two parts will be transmitted to the detachable structure. It will make the detachable structure loose, because the detachable structure is originally used to facilitate connection and detachment. Preventive reinforcement leads to complex structure, heavy weight and relatively low reliability of these existing folding mechanisms

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