Title:
LANDING GEAR DAMPING STRUCTURE FOR UNMANNED AERIAL VEHICLE
Document Type and Number:
WIPO Patent Application WO/2021/208139
Kind Code:
A1
Abstract:
A landing gear damping structure for an unmanned aerial vehicle, comprising: a connecting plate (1) fixedly installed at the bottom part of an unmanned aerial vehicle, a primary damping plate (2) fixedly installed on one side of the connecting plate (1), connecting elbows (3) symmetrically installed at two ends of the primary damping plate (2), hydraulic damping pipes (4) fixedly connected to the other ends of the connecting elbows (3), and airbag brackets (5) fixedly installed at the other ends of the hydraulic damping pipes (4). When landing, the airbag brackets (5) touch the ground, a reaction force generated by the gravity of the unmanned aerial vehicle directly acts on airbag feet (51), and the airbag feet (51) bounce upward to act on an arc-shaped damping sheet (54). After being limited and offset by the arc-shaped damping sheet (54), a vibration force is transmitted upwards to the hydraulic damping pipes (4) by means of an elastic connecting frame, so that the reaction force in the vertical direction that is reduced twice passes through the primary damping plate (2) for three-stage damping to lessen damage to elements on the unmanned aerial vehicle due to the reaction force in the vertical direction.
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Inventors:
YANG SIQIANG (CN)
Application Number:
PCT/CN2020/087248
Publication Date:
October 21, 2021
Filing Date:
April 27, 2020
Export Citation:
Assignee:
NANJING ZUHANG AVIATION TECH CO LTD (CN)
International Classes:
B64C25/60; B64C25/10; B64C25/58; B64C25/62; B64C27/02
Foreign References:
| CN209650535U | 2019-11-19 | |||
| CN210175120U | 2020-03-24 | |||
| CN105438451A | 2016-03-30 | |||
| CN110877716A | 2020-03-13 | |||
| CN108341047A | 2018-07-31 | |||
| CN209037837U | 2019-06-28 | |||
| CN207389540U | 2018-05-22 | |||
| KR20190092752A | 2019-08-08 |
Attorney, Agent or Firm:
NANJING TAIPU PATENT AGENCY (GENERAL PARTNERSHIP) (CN)
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