Title:
MULTI-ROTOR UNMANNED AERIAL VEHICLE
Document Type and Number:
WIPO Patent Application WO/2022/077290
Kind Code:
A1
Abstract:
A multi-rotor unmanned aerial vehicle, comprising a frame (10), rotors (20), and an elastic member (30). Each rotor (20) comprises a motor (21), a propeller (22), and a fixed member (23); the motor (21) is mounted on the frame (10); the fixed member (23) is fixed onto the motor (21), and rotates along with a rotor of the motor (21); the propeller (22) is mounted on the motor (21) by means of the fixed member (23); the motor (21) drives the propeller (22) to rotate. The elastic member (30) is mechanically coupled to a base (221) of the propeller (22) and is used for providing an elastic force to the base (221) of the propeller (22); the base (221) of the propeller (22) is provided with a though hole (223) and a clamping groove (224); the fixed member (23) can pass through the through hole (223), and is engaged with the clamping groove (224) after rotating a preset angle with respect to the base (221) of the propeller (22); and the propeller (22) keeps the clamping groove (224) and the fixed member (23) being in an engaged state under the action of the elastic force of the elastic member (30), so that the motor (21) drives, by means of engagement between the fixed member (23) and the clamping groove (224), the propeller (22) to rotate.
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Inventors:
XIAO XIANG (CN)
XIE YITIAN (CN)
XIE YITIAN (CN)
Application Number:
PCT/CN2020/120962
Publication Date:
April 21, 2022
Filing Date:
October 14, 2020
Export Citation:
Assignee:
SZ DJI TECHNOLOGY CO LTD (CN)
International Classes:
B64C27/08; B64C11/04; B64C27/14
Foreign References:
| CN205661649U | 2016-10-26 | |||
| CN106347653A | 2017-01-25 | |||
| CN206202677U | 2017-05-31 | |||
| CN104583073A | 2015-04-29 | |||
| US20170305542A1 | 2017-10-26 |
Attorney, Agent or Firm:
BEIJING INTELLEGAL INTELLECTUAL PROPERTY AGENT LTD. (CN)
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