Title:
ANTI-LOOSENING RAIL FASTENING DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/181377
Kind Code:
A1
Abstract:
An anti-loosening rail fastening device, comprising a pressing plate (4) provided with a through-hole, a threaded rod (5) passing through the through-hole of the pressing plate, a nut (6) provided on an end portion of the threaded rod, and an anti-loosening nut engagement member (7) sleeved around and provided at the nut. A mounting hole (75) is provided at a middle portion of the anti-loosening nut engagement member, and matches the external surface of the nut. An anti-loosening mechanism is provided on the anti-loosening nut engagement member, and cooperates with the pressing plate to prevent the anti-loosening nut engagement member and the nut from rotating in the reverse direction. By means of the cooperation of the anti-loosening nut engagement member and the pressing plate, the present invention prevents a nut from loosening and rotating in the reverse direction.
Inventors:
JI PEIMIN (CN)
Application Number:
PCT/CN2016/079795
Publication Date:
October 26, 2017
Filing Date:
April 20, 2016
Export Citation:
Assignee:
JI PEIMIN (CN)
International Classes:
B66C7/08; E01B9/12
Foreign References:
| CN2499434Y | 2002-07-10 | |||
| US4284114A | 1981-08-18 | |||
| US4193544A | 1980-03-18 | |||
| CN203143938U | 2013-08-21 | |||
| CN101806322A | 2010-08-18 |
Attorney, Agent or Firm:
ZHENGZHOU ZHONGYUAN PATENT AGENCY CO., LTD. (CN)
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