The invention discloses a foldable arm and a multi-rotor unmanned aerial vehicle, and belongs to the field of unmanned aerial vehicles. The foldable arm comprises an inner arm, an outer arm and an arm folding mechanism; the arm folding mechanism comprises a fastening sleeve, a folding assembly and a locking nut; the far end of the inner arm is detachably and fixedly connected with the near end of the fastening sleeve; the folding assembly comprises a fixed pipe part and a movable pipe part which are coaxial during use, the fixed pipe part is fixedly connected to one side of the far end of the fastening sleeve, the movable pipe part is connected to the other side of the far end of the fastening sleeve through a pin shaft, and the near end of the outer arm is fixedly connected to the inner wall of the movable pipe part; outer threads matched with the locking nut are arranged on the outer side wall of the fixed pipe part and the outer side wall of the movable pipe part, and when the movable pipe part rotates to the position coaxial with the fixed pipe part, the locking nut is screwed on the fixed pipe part and the movable pipe part at the same time so that the position, relative to the inner arm, of the outer arm can be fixed. The unmanned aerial vehicle is reasonable in design and convenient to operate, and the size of medium-large unmanned aerial vehicles during transportation and storage can be effectively reduced.
本发明公开了一种可折叠机臂及多旋翼无人机,属于无人机领域,可折叠机臂包括内臂、外臂和机臂折叠机构;机臂折叠机构包括紧固套、折叠组件和锁紧螺母;内臂的远端与紧固套的近端可拆卸固定连接;折叠组件包括使用时共轴线的固定管片和活动管片,固定管片固定连接在紧固套远端的一侧,活动管片通过销轴连接在紧固套远端的另一侧,外臂的近端固定连接在活动管片的内壁上;固定管片和活动管片的外侧壁上均设置有与锁紧螺母相适配的外螺纹,当活动管片转动到与固定管片共轴线的位置时,锁紧螺母通过同时旋拧在固定管片和活动管片上以使外臂相对于内臂的位置被固定。本发明设计合理且方便操作,能够有效降低中大型无人机运输和保存时的尺寸。
Foldable arm and multi-rotor unmanned aerial vehicle
一种可折叠机臂及多旋翼无人机
2021-12-31
Patent
Electronic Resource
Chinese
IPC: | B64C AEROPLANES , Flugzeuge |
Large foldable multi-rotor unmanned aerial vehicle mechanism
European Patent Office | 2023
|Downwards foldable-type multi-rotor wing unmanned aerial vehicle
European Patent Office | 2015
|