Wing folding-unfolding mechanism for small unmanned aerial vehicle with folding wings

Abstract

The invention discloses a wing folding-unfolding mechanism for a small unmanned aerial vehicle with folding wings. The wing folding-unfolding mechanism comprises an upper cover plate (1), a spring drive mechanism (2), a manual unlocking rod (3), a vertical wing rib plate (4), a rotary plate (5), a lower cover plate (6), a front vertical plate (7), a steering engine (8), a middle vertical plate (9), a steering engine unlocking link mechanism (10), a small vertical plate (11), a right vertical plate (12), a locking hook mechanism (13) and a rotary shaft (14). By virtue of the deformation of a slider-swing rod mechanism, the wing folding-unfolding mechanism has a self-locking function, and is simple in structure and reliable in action; drive force comes from a spring, the change rule of output force is simple, and the wing folding-unfolding mechanism is simple to design and produce, low in cost and convenient to use, and can be reused; and the steering engine unlocking link mechanism is designed to be of a unidirectional stressed type, and thus the conversion process from an unfolding state to a folding state is simplified.

Description

technical field [0001] The invention relates to an unmanned aerial vehicle structure, in particular to a wing folding and unfolding mechanism of a small folding wing unmanned aerial vehicle. Background technique [0002] Nowadays, the development of drone technology is changing with each passing day, and the application of drones is becoming more and more extensive. All military powers in the world are equipped with various types of large, medium and small UAVs to complete strategic and tactical reconnaissance, attack, electronic interference and other tasks, which greatly improves the combat effectiveness of the troops. Departments such as forestry and surveying and mapping are also equipped with some small UAV systems to complete tasks such as forest fire prevention and aerial surveying and mapping. [0003] Most of the small UAVs in active service are disassembled and transported. Although the transportation volume is much smaller than the use volume, the parts are scatt...

AI Technical Summary

Problems solved by technology

[0005] The main problems of the existing mechanism are: 1) The general slider swing rod type and the rack and pinion type deployment mechanism are simple in structure, but the mechanism cannot be self-locked, and an additional locking device is required to lock the deployment position, which increases the complexity of the system 2) The screw nut type and worm gear type deployment mechanism can generally realize self-locking, but the structure is complex, the pressure angle is small, the force transmission efficiency is low, and the deployment speed is slow; 3) The driving force is generally gas As a moving cylinder, it cannot be reused, and the output force changes non-linearly

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