Loosening-proof method used for a screw fastening unit and the device thereof
AssigneeXiamen Yuchengjie Electromechanical Science & Technology Co., Ltd
InventorYuen Liu
Life of this patent
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Abstract
A loosening-proof screw fastening device, including at least one stop wheel on at least one of a plurality of contacting faces; the at least one stop wheel is rotatably assembled in a locating hole on said at least one contacting face with its stop tooth slightly protruded beyond the contacting face; upon application of a backward action force for loosening the fastening device a created torque will bring the at least one stop wheel into rotation and make a stop tooth of the at least one stop wheel protrude beyond the contacting face and penetrate into a surface closely opposed to the at least one contacting face for preventing the fastening device from loosening.
Claims7
A loosening-proof fastening device for fastening a fastener, comprising:
- a gasket including at least one contacting face, said at least one contacting face being transverse to a longitudinal axis of the fastener;
- at least one locating hole, which is set on said at least one contacting face with an axial direction parallel to the longitudinal axis of the fastener and transverse to said at least one contacting face;
- and
- at least one stop wheel rotatably mounted in said at least one locating hole, said at least one locating hole being a through hole and said at least one stop wheel having two stop teeth at opposing places on said stop wheel, said at least one contacting face referring to both of the contacting faces on the two sides of the gasket.
Dependencies are inferred from the claim text.