CN2153669Y

CN2153669Y - Safety tight nut

Info

Publication number: CN2153669Y
Application number: CN 93207841
Authority: CN
Inventors: 杨建跃
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-03-31
Filing date: 1993-03-31
Publication date: 1994-01-19
Anticipated expiration: 2003-03-31

Abstract

The utility model relates to a safety tight nut, comprising an upper nut and a lower nut. The utility model is characterized in that a recessed part is arranged in the upper nut, and a convex part which is corresponding to the recessed part of the upper nut is arranged in the lower nut, the axial leads of the upper nut and the lower nut are respectively coincident to the central lines of the recessed part and the convex part, and the axial leads are deviated from the central line of the threaded holes of the upper nut and the lower nut. The utility model overcomes the defects of a common nut that the common is easy to damage and loose, and the utility model has the advantages of simple structure, convenient and safe use, favorable tightening effect, strong anti-vibration ability, long service life, etc.; the utility model brings convenience to the daily life and working of people; at the same time, the utility model creates favorable conditions to guarantee the safe daily life and production.

Description

Safety tight nut

The utility model belongs to a kind of fastener, especially relates to a kind of nut that is fastened securely.

In people's daily life and work; often can use fastener; wherein nut is that application surface is the widest; but present employed nut is by last; the structural type that lower plane matches with hole, screw thread garden; wherein the center line of the shaft axis in hole, screw thread garden and nut coincides; conventional nut mainly is by screw thread and bolt; the cooperation of screw or axle reaches fastening purpose; its interaction force bears by screw thread; therefore, in actual use, sliding easily tooth of screw thread or damage; in the dynamic duty occasion; the anti-vibration ability of nut usually can be become flexible voluntarily, and the trouble and the accident that cause thus are many.

The purpose of this utility model is to provide a kind of fastening effective, new type nut that shock resistance is strong, easy to use, safe, for people's live and work has been removed trouble and worry.

The purpose of this utility model is to realize like this, it comprises upper cap nut and lower nut, it is characterized in that being provided with in the upper cap nut recess, lower nut is provided with protuberance, the recess of upper cap nut is corresponding with the protuberance of lower nut, the shaft axis of upper cap nut and the central lines of its recess, the shaft axis of lower nut and the center line of its protuberance coincide, and the center line of bolt hole of the center line of bolt hole of upper cap nut and lower nut departs from certain spacing with the shaft axis of upper and lower nut respectively.

That advantage of the present utility model is is reasonable in design, simple in structure, changed the stressed traditional approach of screw thread, has improved the life cycle of nut, has increased fastening stability and Security, and its Applicable scope is extensive.

In conjunction with the accompanying drawings and embodiments, the utility model specifically is described below:

Fig. 1 is a structure sectional view of the present utility model:

Fig. 2 is a plan view of the present utility model:

The utility model is made by metallic material, it is made up of upper cap nut 1 and lower nut 6 two-part, in upper cap nut 1, be provided with recess 4, on lower nut 6, be provided with protuberance 7, the recess 4 of upper cap nut 1 is corresponding with the protuberance 7 of lower nut 6, the center line of the shaft axis of upper cap nut 1 and its recess 4 coincides, the center line of the shaft axis of lower nut 6 and its protuberance 7 also coincides, and the center line 10 of the center line 3 of upper cap nut 1 screw 2 and lower nut 6 screws 9 departs from certain spacing with the shaft axis of upper cap nut 1 and lower nut 6 respectively, on recess 4, be shaped on inclination curved surface 5, on protuberance 7, also be shaped on and curved surface 5 corresponding plane of inclination 8, when the utility model uses, upper cap nut 1 and lower nut 6 can match with bolt or screw by screw 2 and screw 9, when upper cap nut 1 is revolved when disturbing to lower nut 6 gradually, because it is last, lower nut 1,6

screw

2,9 center line 3, the 10th, with last lower nut 1,6 shaft axis phase deviation, therefore at last lower nut 1,6 screw screw 2 in the process, the inclination curved surface 5 of 9 suffered longitudinal forces by recess 4 and the interaction of the inclination curved surface 8 of protuberance 7, make, lower nut 1, be subjected to force direction and stress form between 6 are improved, thereby also improved shock resistance, last lower nut 1, also be difficult between 6 becoming flexible, using effect and Security are relatively good.

Claims

1, a kind of nut that is fastened securely, comprise upper cap nut (1) and lower nut (6), it is characterized in that being provided with in the upper cap nut (1) recess (4), lower nut (6) is provided with protuberance (7), the recess (4) of upper cap nut (1) is corresponding with the protuberance (7) of lower nut (6), the central lines of the shaft axis of upper cap nut (1) and its recess (4), the center line of the shaft axis of lower nut (6) and its protuberance (7) coincides, and upward the shaft axis of lower nut (1), (6) departs from certain spacing with center line (3), (10) of its screw (2), (9) respectively.

2, the nut that is fastened securely according to claim 1 is characterized in that being respectively equipped with inclination curved surface (5), (8) in the described recess (4) of going up lower nut (1), (6) and the protuberance (7).