Locking structure with tongue-shaped elastic piece for unmanned aerial vehicle, load cabin and unmanned aerial vehicle

The invention relates to the field of miniature unmanned aerial vehicles, in particular to a locking structure with a tongue-shaped elastic piece for an unmanned aerial vehicle, a load cabin and the unmanned aerial vehicle. The locking structure comprises a head load cabin and a load restraining frame with a tongue-shaped elastic piece, the head load cabin comprises a wedge-shaped bayonet, and the root of the tongue-shaped elastic piece comprises a limiting spigot; the locking structure has the advantages of being simple, compact and light in weight. The load restraining frame is provided with a tongue-shaped elastic piece and a spigot of the tongue-shaped elastic piece so that elastic force can be provided, and the head load cabin can be reliably locked under the assembling condition. The tongue-shaped elastic piece is pressed downwards, so that the limiting seam allowance at the root of the tongue-shaped elastic piece moves downwards to avoid the wedge-shaped bayonet of the head load cabin, the head load ca