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Title:
UNMANNED AERIAL VEHICLE IRREGULAR-SHAPED ARM FOLDING DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/132808
Kind Code:
A1
Abstract:
An unmanned aerial vehicle irregular-shaped arm folding device, comprising an internally hollow arm (1), a rotation base (2) and a rotation stem (3), the rotation stem (3) being T-shaped, the vertical end of the T shape being inserted in the arm (1) and fixedly secured to the arm by means of a screw; one end of the crossbar of the rotation stem (3) T shape is provided with a through-hole, the rotation base (2) being provided with a U-shaped cavity corresponding to the rotation stem (3), screw holes corresponding with the through-hole being provided symmetrically on the inner wall of the cavity; the device further comprises a rotation bolt (21) which goes through the screw holes and through-hole, and a nut (22) corresponding to the rotation bolt (21), the cavity also being provided with a locking shaft (23) vertically parallel with the rotation bolt (21), a locking nut (24) being provided corresponding to the locking shaft (23) and used to lock same, and the crossbar of the rotation stem (3) T shape being provided with a clamp opening (30) used to clamp the locking shaft (23). When folding is necessary, all that is required is to loosen the locking nut (24) and disengage the clamp opening (30) from the locking shaft (23), then the rotation stem (3) can rotate downward around the rotation bolt (21), allowing for ease of use; the rotation stem (3) can be used for many types of irregular-shaped arms, has strong applicability and is easy to popularize, and the overall structure is simple and low-cost.

Inventors:
ZHANG WANBIN (CN)
Application Number:
PCT/CN2016/073094
Publication Date:
August 10, 2017
Filing Date:
February 01, 2016
Export Citation:
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Assignee:
ZHANG WANBIN (CN)
International Classes:
B64C1/30; B64C1/06; B64C3/56
Domestic Patent References:
WO2014059549A12014-04-24
Foreign References:
CN205469771U2016-08-17
CN105539810A2016-05-04
CN104163238A2014-11-26
CN203921185U2014-11-05
CN204871580U2015-12-16
CN204979233U2016-01-20
US6036442A2000-03-14
KR101456035B12014-11-04
CN204548479U2015-08-12
Attorney, Agent or Firm:
SHENZHEN KEGUAN INTELLECTUAL PROPERTY AGENCY CO.,LTD (CN)
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