A kind of elastic anti-seismic anti-loosening nut

Abstract

The invention discloses an elastic anti-shock and anti-loosening nut, which comprises a nut processed with connecting threads, an elastic washer is arranged at the end of the nut, and the wall of the elastic washer is opened with the upper end of the elastic washer being pressed. Elastic press-fit groove that produces press-fit deformation. The present invention improves the end of the nut so that it has the phenomenon of preventing the bolt from loosening when the bolt is connected by a conventional spring washer, avoids placing the spring washer at the end of the nut, reduces the space occupation phenomenon at this position, and ensures It ensures that the bolt and nut have a sufficient effective length, thereby ensuring the connection strength of the bolt and nut, and at the same time makes the bolt connection have an elastic anti-seismic and anti-loosening effect, without additional elastic washers, and does not shorten the effective length of the bolt and nut connection.

Description

technical field [0001] The invention relates to a nut matched with a bolt, in particular to an elastic anti-seismic anti-loosening nut, which is widely used in the fields of automobile tires and mechanical fastening to solve the connection of easily loosened bolts and nuts. Background technique [0002] At present, there is a combined nut on the market, which includes a nut and a movable washer. The movable washer enables the nut to be used universally regardless of left-handed or right-handed bolts when the nut is rotated. However, this kind of combined nut generally has the problem that the contact area between the nut and the movable washer is small, so that the bearing force of the nut is small, resulting in the problem that the nut is easy to loosen and fall off or the screw rod is easy to be twisted off. Its specific structure is as in 2009 A kind of nut applied on December 02, 2009 (application number 200920264486.4, it can be known from this invention patent that th...

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Problems solved by technology

[0005] The purpose of the present invention is to provide an elastic anti-vibration and anti-loosening nut to solve the technical problem that the reinforced tire nut in the prior art does not have the pretightening force of the elastic washer, so that the bolts have an elastic anti-vibration and anti-loosening effect without the need for In addition, the elastic washer is added to not shorten the effective length of the connection between the bolt and the nut

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