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Multi-rotor aircraft folding blade unfolding mechanism capable of flexibly locking

A multi-rotor aircraft and deployment mechanism technology, applied in propellers, aircraft parts, transportation and packaging, etc., can solve problems such as poor user experience, broken propellers, and increased maintenance costs, and achieve a good user experience, low cost, and compact structure. Effect

Pending Publication Date: 2018-10-16
NO 719 RES INST CHINA SHIPBUILDING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, after a period of time, it is necessary to replace worn gaskets and even blades to ensure that the power system of the multi-rotor aircraft can work normally, which makes the user experience poor and increases maintenance costs
However, if the fixed propeller structure is adopted at 180°, when the propeller contacts with external objects, it cannot play a protective role, and there is a possibility of breaking the propeller

Method used

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  • Multi-rotor aircraft folding blade unfolding mechanism capable of flexibly locking
  • Multi-rotor aircraft folding blade unfolding mechanism capable of flexibly locking
  • Multi-rotor aircraft folding blade unfolding mechanism capable of flexibly locking

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Embodiment Construction

[0017] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0018] as attached figure 1 As shown, the present invention provides a multi-rotor aircraft folding paddle expansion mechanism that can be flexibly locked, including: blade 1, paddle clamp base 2, slider 3, spring 4, lower gasket 5, upper gasket 6 and paddle Clamp cover plate 7, wherein the propeller clamp base 2 includes a propeller shaft 2-1, a support column 2-2, and a guide groove 2-3. The lower gasket 5, the blade 1, and the upper gasket 6 are successively set on the propeller shaft 2-1 on the propeller clamp base 2, one end of the spring 4 is connected to the support column 2-2 on the propeller clamp base 2, and the other end is connected to On the slider 3, the end surface of the slider 3 is matched with the end of the paddle 1, the slider 3 is embedded in the guide groove 2-3 on the paddle clamp base 2, and the spring 4 is in a pre-compressed stat...

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Abstract

The invention discloses a multi-rotor aircraft folding blade unfolding mechanism capable of flexibly locking. When blades are in a folded state, the side surfaces of the end parts of the blades lock the blades in the folded state by using a pre-compression force of a mechanism; when an external motor drives a blade clip to rotate, the blades generate unfolding trends under an effect of inertia; after an inertia force is sufficient for the blades to overcome the pre-compression force of the mechanism and the blades rotate for 90 degrees around guide columns on a blade clip base, the front surfaces of the end parts of the blades are flexibly locked in an unfolded state under an effect of a restoring force; and when the blades are folded after a multi-rotor aircraft lands, the blades reversely rotate for 90 degrees to overcome the pre-compression force of the mechanism to be in the folded state. According to the multi-rotor aircraft folding blade unfolding mechanism capable of flexibly locking, the wears of structures such as the blades can be furthest reduced, and protection effects on the blades can be realized to a certain degree.

Description

technical field [0001] The invention belongs to the field of multi-rotor aircraft, and in particular relates to a multi-rotor aircraft folding paddle unfolding mechanism that can be flexibly locked. Background technique [0002] Multi-rotor aircraft is a kind of unmanned aerial vehicle, mainly composed of power system, navigation system, control system, energy supply system and so on. The power system of a small multi-rotor aircraft is usually powered by a motor, and also includes propellers and their mounting and fixing accessories. Portability is one of the most important characteristics of multi-rotor aircraft. Therefore, existing products often adopt a folding paddle structure to reduce the space occupied by the multi-rotor aircraft when it is not in use, and it is also conducive to the protection of the blades during transportation. [0003] Generally, the folding paddle is fixed on the rotating part of the outer rotor motor through upper and lower paddle clamps, gaske...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C11/28
CPCB64C11/28
Inventor 杨雪松李强郭寒贝纪仁超
Owner NO 719 RES INST CHINA SHIPBUILDING IND
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