Combined anti-loosening fastener

An anti-loosening and combined technology, applied in the direction of threaded fasteners, locking fasteners, connecting components, etc., can solve the problems of difficulty and trouble in processing wedge-shaped teeth, difficulty in mass production, etc., and achieve assembly process convenient effect
CN113294423APending Publication Date: 2021-08-24蒋建伟 +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
蒋建伟
Publication Date
2021-08-24

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Abstract

The invention discloses a combined anti-loosening fastener, and relates to the technical field of fasteners. The fastener comprises a bolt, a nut and an anti-loosening washer; the upper end surface of the anti-loosening washer is coaxially and fixedly connected with a ratchet wheel, the outer diameter of the ratchet wheel is smaller than that of the anti-loosening washer, radial wedge-shaped teeth are annularly arranged on the lower end surface of the anti-loosening washer, the orientation direction of the side end surfaces of the wedge-shaped teeth is consistent with the unscrewing direction of the nut, the bottom end of the nut is fixedly connected with a female cover, the female cover can cover the ratchet wheel, the bottom end of the female cover can be pressed on the upper end surface of the anti-loosening washer, a plurality of pawls matched with the ratchet wheel are arranged on the side wall of the female cover, and one end of the rod part of the bolt can sequentially penetrate through a workpiece, the anti-loosening washer, the ratchet wheel, the female cover and the nut to be connected with the workpiece in a fastened mode. When being used for fixing an object, the anti-loosening fastener can effectively prevent loosening, and is convenient to assemble and relatively low in machining difficulty.
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Description

technical field

[0001] The invention relates to the technical field of fasteners, in particular to a combined anti-loosening fastener. Background technique

[0002] The existing fasteners use traditional structures such as bolts, nuts and washers. The fastening principle is that the bolts are inserted into the connectors, and the nuts are tightened and fixed, or springs, washers and other accessories are added to prevent Bolts and nuts are loose, which has the advantages of simple structure, low cost, and good fastening effect under normal circumstances, but it is prone to loosening after long-term use, thereby posing potential safety hazards. In some special environments, such as vibration environments, strong sports environments, equipment with high assembly requirements, and other special environments, the self-locking ability of bolts and threads is not enough to maintain the stability of fasteners.

[0003] Chinese patent CN101173693 provides a kind of anti-loosening w...

Claims

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