一种防松机构

Anti-loosening mechanism

Abstract

The utility model relates to an anti-loosening mechanism which comprises a bolt, a screw nut, a gasket, a spring, a limiting shaft, a toothed gear and a cover body, wherein the toothed shaft and the limiting shaft are arranged inside the cover body, the limiting shaft is positioned below the toothed shaft, the top of the limiting shaft adopts a wedged structure, the spring is sleeved at the lower part of the limiting shaft, the wedged structure at the top of the limiting shaft is engaged with the tooth socket between two teeth of the toothed shaft, and the cover body and the limiting shaft are combined to form a mechanism for fixing an upper position and a lower position of the limiting shaft. By moving the limiting shaft between the upper and the lower positions back and forth, the limiting shaft is engaged with or disengaged from the teeth of the toothed shaft, so as to achieve the anti-loosening state and the release state of the anti-loosening mechanism. The utility model can solve the problems of the prior art that the locking mechanism of the screw is inconvenient to operate and has poor reliability.
本实用新型涉及一种防松机构,包括螺钉、螺母、垫圈、弹簧、限位轴、齿轴及罩体;齿轴和限位轴置于罩体内,齿轴下方为限位轴,限位轴顶部是楔形结构,限位轴下部套有弹簧,限位轴顶部的楔形结构和齿轴两齿间的齿槽相楔合,罩体和限位轴配合形成固定限位轴上、下位置的机构,通过限位轴上、下位来回移动,使限位轴与齿轴的齿啮合或分离,达到防松机构的防松和松开状态。本实用新型可解决现有技术中螺丝的锁紧机构的操作方便性和可靠性的问题。

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    Publication numberPublication dateAssigneeTitle
    CN-106015268-AOctober 12, 2016海盐龙腾高强度紧固件有限公司Firmly fixed screw group