Title:
FASTENER FOR PREVENTING SELF-TURNING MOTION IN LOOSENING DIRECTION
Document Type and Number:
WIPO Patent Application WO/2022/174758
Kind Code:
A1
Abstract:
A fastener for preventing self-turning motion in a loosening direction, comprising a bolt (1), a first nut (2), a washer (3), and a second nut (4). The center of the washer (3) is provided with a through hole (5) allowing a screw rod of the bolt (1) to pass through, and the top of the washer is provided with a conical raised surface (6); one end of the second nut (4) is provided with a conical recessed surface (7); after the bolt (1), the first nut (2), the washer (3), and the second nut (4) are installed and tightened on a workpiece (8), the bottom of the first nut (2) is in contact with the workpiece (8); and the bottom of the washer (3) is in contact with the top of the first nut (2). The continuous turning motion in the loosening direction of the first nut (2), the second nut (4), and the bolt (1) under lateral vibration or impact can be prevented.
Inventors:
XU SONGLIN (CN)
Application Number:
PCT/CN2022/076201
Publication Date:
August 25, 2022
Filing Date:
February 14, 2022
Export Citation:
Assignee:
XU SONGLIN (CN)
International Classes:
F16B39/24; F16B37/00
Domestic Patent References:
| WO1988001024A1 | 1988-02-11 |
Foreign References:
| CN108488200A | 2018-09-04 | |||
| CN108468704A | 2018-08-31 | |||
| CN112814986A | 2021-05-18 | |||
| CN214945652U | 2021-11-30 | |||
| CN103291729A | 2013-09-11 | |||
| CN203374616U | 2014-01-01 | |||
| CN208252561U | 2018-12-18 | |||
| GB1082816A | 1967-09-13 | |||
| US20100183399A1 | 2010-07-22 |
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