CN105422601A

CN105422601A - Lock nut

Info

Publication number: CN105422601A
Application number: CN201410477182.1A
Authority: CN
Inventors: 高征
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-09-18
Filing date: 2014-09-18
Publication date: 2016-03-23

Abstract

The invention discloses a lock nut which is formed by combining a nut body and a plastic gasket. A groove formed in the length direction is formed in the inner wall of a central hole of the nut body. A ring-shaped thin shell is arranged at one lateral end of the nut body, the plastic gasket is inlaid in the ring-shaped thin shell and tightly attached to the lateral end face of the nut body so as to form a whole, and the plastic gasket is consistent with the nut body in inner diameter. The thickness of the plastic gasket is 1-3 times of the distance between threads. The lock nut is simple in structure, convenient to use, convenient to rotate and long in service life, and a spring gasket or other lock devices which are commonly adopted by people can be omitted. The lock nut is suitable for the occasions where mechanical components, locomotive vehicles and the like need to be fixed with nuts and bolts, and the lock nut is wide in application range.

Description

Lock nut

Technical field

The invention belongs to mechanical fastening system technical field, is a kind of lock nut for stationary mechanism part or object.

Background technique

Nut and bolt are that one applies mechanical fixed part very widely.Common nut coordinates stationary mechanism part during with bolt, due to motion or the vibrations of machinery, the time is slightly long, and nut easily loosens, come off, and makes fixture produce displacement or loosen.Light then, damage is caused to mechanical part, heavy then fault or accident may be caused.In order to solve the loosening problem of nut, people, for different application conditions and environment, have devised many Anti-loosening nuts or device, and these lock nuts or device serve some anti-loosening effect to a certain extent.But the general more complicated of their structure, and some use operations are convenient not, and screw thread on the easy damage bolt had, makes nut decline and cause difficulty.

In addition, nut utilizes the tapped hole at center to be meshed with screw or bolt, thus be fixed together by two parts.But in use, if the screw thread of bolt or nut gets rusty, then can cause dismounting difficulty by damaged screw.

Summary of the invention

For above-mentioned the deficiencies in the prior art part, the invention provides a kind of improved locknut,

Can solve the problem completely.

The technical solution used in the present invention is: a kind of lock nut, combined by nut and plastic washer, the center bore inner wall of described nut is provided with groove along its length, nut one side is ring book housing, in plastic washer is embedded in, and be close to nut side end face and form an entirety, plastic washer internal diameter is consistent with nut internal diameter.

As preferably, the thickness of described plastic washer be 1 ~ 3 times to flight pitch.

As preferably, described plastic washer thickness be 1.3 ~ 2.5 times to flight pitch.

As preferably, described groove has more than two.

The profile of this improved locknut can be common nut shape, as six-sided nut.And be applicable to the nut of various standard model.During use, this lock nut is equally screwed on corresponding bolt by usual nut.After nut is fixedly tightened parts, the screw thread on bolt shoots the internal surface of plastic washer automatically, thus avoids fixed component loosening and displacement in motion or vibrations process.Because plastic washer has certain elasticity, when the tap of bolt is fashionable can not damaged screw.And when screwing on or backing off nut, the anvil cinder on nut or bolt and other impurity automatically can be got rid of from groove, thus it is damaged to avoid screw thread, extends its working life.

The invention has the advantages that: structure is simple, easy to use, rotates light, long service life, and the compression spring or other locking devices that people adopt usually can be saved.Be applicable to the occasion that the various use nut such as mechanical part, rolling stock, bolt are fixing, wide application amount is large.

Accompanying drawing explanation

Fig. 1 is the sectional view of the present invention along middle section;

Fig. 2 is worm's eye view of the present invention.

Embodiment

Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.

As shown in Figure 1 and Figure 2, a kind of lock nut, combined by nut 1 and plastic washer 3, the center bore inner wall of described nut 1 is provided with three grooves 4 along its length, nut 1 one side is ring book housing 2, in plastic washer 3 is embedded in, and is close to nut 1 side end face and forms an entirety, plastic washer 3 internal diameter is consistent with nut 1 internal diameter.The thickness of described plastic washer 3 be 1 ~ 3 times to flight pitch.

During manufacture, comprised the thin walled shell 2 of a side by machining making nut 1(), the plastic washer 3 made in advance is placed in thin walled shell 2, with seaming machine, shell is flattened, plastic washer 3 envelope is pressed in ring, makes nut 1 and plastic washer 3 form an entirety, re-plating.Groove 4 is even Cuo Chu tri-roads on nut 1 center bore inner wall.

The profile of this lock nut can be common nut shape, as six-sided nut.And be applicable to the nut of various standard model.During use, this lock nut is equally screwed on corresponding bolt by usual nut.After nut is fixedly tightened parts, the screw thread on bolt shoots the internal surface of plastic washer 3 automatically, thus avoids fixed component loosening and displacement in motion or vibrations process.Because plastic washer 3 has certain elasticity, when the tap of bolt is fashionable can not damaged screw.And when screwing on or backing off nut, the anvil cinder on nut or bolt and other impurity automatically can be got rid of from groove 4, thus it is damaged to avoid screw thread, extends its working life.

Claims

1. a lock nut, combined by nut and plastic washer, it is characterized in that: the center bore inner wall of described nut is provided with groove along its length, nut one side is ring book housing, in plastic washer is embedded in, and be close to nut side end face and form an entirety, plastic washer internal diameter is consistent with nut internal diameter.

2. a kind of lock nut according to claim 1, is characterized in that: the thickness of described plastic washer be 1 ~ 3 times to flight pitch.

3. a kind of lock nut according to claim 1, is characterized in that: described plastic washer thickness be 1.3 ~ 2.5 times to flight pitch.

4. a kind of lock nut according to claim 1, is characterized in that: described groove has more than two.