Large-scale deployable multi-rotor unmanned aerial vehicle mechanism

By using an internal hexagonal structure and an internally and externally hinged scissor drive mechanism, the problem of existing drones being unable to retract and deploy over a large area is solved, achieving high volume utilization and stable multi-rotor drone motion, and supporting module expansion.

CN116513525BActive Publication Date: 2026-06-23TIANJIN POLYTECHNIC UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TIANJIN POLYTECHNIC UNIV
Filing Date
2023-03-07
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing folding rotor drones cannot achieve large-area shrinking and unfolding, have many unstable mechanical parts, are highly susceptible to environmental influences due to their large degree of freedom, have limited functionality, and cannot be expanded.

Method used

It adopts an internal regular hexagonal structure and realizes the folding and extension of the drone through hinged connection and internal and external scissor drive devices. There are only rotating joints. The internal scissor restricts the degree of freedom, the external scissor ensures synchronous unfolding, the lift drive device provides flight force, and the control module controls the power source.

Benefits of technology

It achieves high volume utilization, lightweight design, stable movement, easy folding and unfolding, avoids jamming, supports module expansion, and maintains stable movement.

✦ Generated by Eureka AI based on patent content.

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    Figure CN116513525B_ABST
Patent Text Reader

Abstract

The application discloses a large foldable multi-rotor unmanned aerial vehicle mechanism, and the mechanism comprises a regular hexagon frame, a rectangular frame and a scissors connecting each regular hexagon frame, and the unmanned aerial vehicle mechanism is mainly formed by the mutual hinging of the frames. The hollow design is adopted for each frame, so that the weight is reduced as much as possible under the premise of ensuring the performance. The length of the long side of the rectangular frame influences the folding rate and the mechanism size, and a rotor and a brushless motor are arranged in the vertex regular hexagon frame. The mechanism has high volume utilization rate and light weight; when folding, the rotor is gathered to the center, only a rotating pair exists, and the folding and unfolding movement process is stable, and the folding and unfolding can be completed in the air; one circle of structure can be expanded into two circles and three circles of structure, and the unmanned aerial vehicle mechanisms of one circle, two circles and three circles all have only one degree of freedom, and stable unfolding can be realized in the flight process.
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