CN202170915U

CN202170915U - Self-locking nut

Info

Publication number: CN202170915U
Application number: CN2011202102707U
Authority: CN
Inventors: 陈四甫; 陈明举; 胡永涛; 赵磊成
Original assignee: XUCHANG SIDA ELECTRIC POWER EQUIPMENT CO Ltd
Current assignee: XUCHANG SIDA ELECTRIC POWER EQUIPMENT CO Ltd
Priority date: 2011-06-21
Filing date: 2011-06-21
Publication date: 2012-03-21
Anticipated expiration: 2021-06-21

Abstract

The utility model relates to a nut, in particular to a self-locking nut, which is characterized by comprising a nut body and an outer sleeve. The outside of the nut body is a solid body, and the inside of the nut body is provided with a first hollow core for a bolt to be screwed in. Viewing from the longitudinal section, the lower portion of the solid body is in a triangular structure, threads inside the solid body and threads outside the solid body are in opposite directions. A second hollow core structure is arranged inside the outer sleeve, a sleeve body in a prism structure is arranged outside the outer sleeve, the structure of the second hollow core is matched with the nut body, and threads matched with the outside of the nut body are arranged inside the outer sleeve. The upper end of the outer sleeve is provided with a notch, the upper end of a nut sleeve is provided with extending-out rim which is matched with the notch, and the lower portion of the solid body is provided with vertical openings arranged at intervals. The self-locking nut has the advantages of simple structure and good locking effect.

Description

A kind of from jam nut

Technical field

The utility model relates to nut, and is particularly a kind of from jam nut.

Background technique

In order to lock, the technological scheme of taking has plenty of double nut stack and uses, and what have adds locking spiral shell pad etc., and such measure has the shortcoming that locks weak effect, the use anti-theft nut that also has, and such measure has complex structure, shortcoming that cost is high.

Summary of the invention

The purpose of the utility model is exactly to above-mentioned shortcoming, provide a kind of have simple in structure, lock effective from jam nut.

The purpose of the utility model is achieved in that a kind of from jam nut; It is characterized in that: comprise nut body and overcoat; The outside of said nut body is that entity, inside have first hollow that is screwed into bolt; Seeing from longitudinal section, is triangular structure below the described entity, and entity inside and outside has rightabout screw thread; Said overcoat inside has the body that second hollow core structures, outside have prism structure, second hollow core structures nut body that coincide, and its external sleeve inside has the outside screw thread of identical nut body.

Say that further said outer set upper side has a groove mouth, said nut sleeve upper end has the periphery of stretching out, and stretches out the identical groove mouth of periphery.

Say that further said otherwise solid lower portion has vertical openings at interval.

The beneficial effect of the utility model is: this spline structure from jam nut have simple in structure, lock effective advantage.

Description of drawings

Fig. 1 is the structural representation of the utility model from jam nut.

Wherein: 1, nut body 2, overcoat 3, entity 4, first hollow 5, second hollow core structures 6, groove mouth 7, stretch out periphery 8, vertical openings.

Embodiment

Below in conjunction with accompanying drawing the utility model is done further to describe.

As shown in Figure 1, a kind of from jam nut, it is characterized in that: comprise nut body 1 and overcoat 2; The outside of said nut body 1 is that entity 3, inside have first hollow 4 that is screwed into bolt, sees from longitudinal section, and be triangular structure below the described entity 3; Entity 3 inside and outside has rightabout screw thread; Said rightabout screw thread is meant along direction rotary threaded of inner or outside screw thread and rises that another descends to unified direction rotation, the alleged positive silk or the anti-silk that promptly have; Said overcoat inside has the body that second hollow core structures 5, outside have prism structure, second hollow, the 5 structures nut body 1 that coincide, and its external sleeve inside has the outside screw thread of identical nut body.

During use, in second cavity of nut body its external sleeve, owing to having anti-silk inside and outside the nut body; In the time of can guaranteeing to tighten overcoat like this; What nutting body and overcoat combined more is tight more, and the acute angle portion of the triangular structure of entity shrinks, and holds the purpose that bolt plays the utility model tightly.

Say that further said outer set upper side has a groove mouth 6, said nut sleeve upper end has stretches out periphery 7, stretches out periphery 7 identical groove mouths 6, can guarantee that like this nut body is not removed, and plays the effect of antitheft.

Say that further said otherwise solid lower portion has vertical openings 8 at interval, such opening can further play relaxation effect.

Claims

1. one kind from jam nut; It is characterized in that: comprise nut body and overcoat, the outside of said nut body is that entity, inside have first hollow that is screwed into bolt, sees from longitudinal section; Be triangular structure below the described entity, entity inside and outside has rightabout screw thread; Said overcoat inside has the body that second hollow core structures, outside have prism structure, second hollow core structures nut body that coincide, and its external sleeve inside has the outside screw thread of identical nut body.

2. nut according to claim 1 is characterized in that: said outer set upper side has a groove mouth, and said nut sleeve upper end has the periphery of stretching out, and stretches out the identical groove mouth of periphery.

3. nut according to claim 1 and 2 is characterized in that: said otherwise solid lower portion has vertical openings at interval.