CN219197868U

CN219197868U - Lock nut

Info

Publication number: CN219197868U
Application number: CN202320624114.8U
Authority: CN
Inventors: 周文兵
Original assignee: Wuhan Chuanbo Fastener Co ltd
Current assignee: Wuhan Chuanbo Fastener Co ltd
Priority date: 2023-03-27
Filing date: 2023-03-27
Publication date: 2023-06-16
Anticipated expiration: 2033-03-27

Abstract

The utility model discloses a locknut which comprises a positioning cylinder and two nuts, wherein one end of the positioning cylinder is coaxially provided with a limiting ring, both ends of the limiting ring are coaxially provided with annular grooves, one end of each nut is coaxially provided with annular protrusions corresponding to the annular grooves, the two nuts are arranged on both sides of the limiting ring, the annular protrusions are respectively embedded in the corresponding annular grooves, and the other end of each nut positioned in the positioning cylinder is flush with the other end of the positioning cylinder. The utility model provides a lock nut capable of being used repeatedly.

Description

Lock nut

Technical Field

The present utility model relates to the field of fasteners. More particularly, the present utility model relates to a locknut.

Background

The nut is a fastener matched with a bolt or a screw rod, and the connection between the nut and the bolt or the screw rod is realized through the threaded connection between the inner threads and the outer threads on the bolt or the screw rod, so that two parts with through holes are fastened together. Locknuts are common fastening locknuts, and have good vibration resistance, wear resistance, shearing resistance and locking performance, so the locknuts are widely used. At present, special anti-loosening elements are arranged on the market and are bonded and loosened by combining adhesives, and although a certain anti-loosening effect can be achieved, the anti-loosening nut cannot be reused.

Disclosure of Invention

The utility model aims to provide a check nut capable of being used repeatedly.

The technical scheme for solving the technical problems is as follows: the utility model provides a locknut, includes a positioning section of thick bamboo and two nuts, a coaxial spacing ring that is equipped with in positioning section of thick bamboo one end, the both ends of spacing ring all coaxial be equipped with annular groove, the one end coaxial of nut be equipped with annular bulge that annular groove corresponds, two the nut sets up spacing ring both sides, its annular bulge inlays respectively and establishes in corresponding in the annular groove, be located a positioning section of thick bamboo the other end of nut with the other end parallel and level of a positioning section of thick bamboo.

Preferably, in the locknut, a plurality of teeth are uniformly distributed at the other end of the positioning cylinder.

Preferably, in the locknut, the bottom wall of the annular groove and the end of the annular protrusion are rough surfaces.

Preferably, in the locknut, the positioning cylinder and the limiting ring are integrally formed.

Preferably, in the locknut, a spring washer is disposed in the annular groove, and two ends of the spring washer respectively abut against the annular groove and the annular protrusion.

The locknut can be used for multiple times, and the locknut can be prevented from sliding left and right by connecting the positioning cylinder with the two nuts and connecting the positioning cylinder with the fastened piece.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.

Drawings

FIG. 1 is a schematic view of a locknut according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of a locknut according to an embodiment of the utility model;

fig. 3 is a cross-sectional view of a locknut according to another embodiment of the utility model.

Detailed Description

The present utility model is described in further detail below with reference to the drawings to enable those skilled in the art to practice the utility model by referring to the description.

It should be noted that, in the description of the present utility model, the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Fig. 1-2 are diagrams of an anti-loose nut provided by the embodiment of the utility model, which comprises a positioning cylinder 1 and two nuts 2, wherein one end of the positioning cylinder 1 is coaxially provided with a limiting ring 3, both ends of the limiting ring 3 are coaxially provided with annular grooves, one end of each nut 2 is coaxially provided with annular protrusions 4 corresponding to the annular grooves, the two nuts 2 are arranged on both sides of the limiting ring 3, the annular protrusions 4 are respectively embedded in the corresponding annular grooves, and the other end of each nut 2 positioned in the positioning cylinder 1 is flush with the other end of the positioning cylinder 1.

In this embodiment, as shown in fig. 1-2, the bolt passes down through the two parts, the head of the bolt is in abutment with the upper part by the washer, and then a nut 2 is first screwed onto the bolt, with the annular projection 4 of the nut 2 facing downwards. The nut 2 is screwed down to fix the bolt and the two parts, and then the positioning cylinder 1 penetrates through the bolt with the opening upwards until the annular bulge 4 of the nut 2 above is embedded in the annular groove above the positioning cylinder 1, so that the positioning cylinder 1 is fixed. And then the other nut 2 is installed on the bolt through threads, the annular bulge 4 of the nut 2 is upwards arranged, the nut 2 is screwed down so as to fix the positioning cylinder 1 with the bolt, at the moment, as shown in fig. 2, the two annular bulges 4 are mutually abutted with the limiting ring 3, the upper end of the positioning cylinder 1 is abutted with a part, and therefore the stability of the upper nut 2 during use is enhanced through the positioning cylinder 1, and the loosening of the upper nut is prevented.

Preferably, in the locknut, a plurality of teeth 5 are uniformly distributed at the other end of the positioning cylinder 1.

In the embodiment, the plurality of teeth 5 are uniformly distributed at the other end of the positioning cylinder 1, and the friction force between the positioning cylinder 1 and the part is enhanced through the plurality of teeth 5, so that the stability of the locknut is enhanced.

Preferably, in the locknut, the bottom wall of the annular groove and the end of the annular protrusion 4 are rough surfaces.

In this embodiment, the end of annular recess diapire and annular protruding 4 are the roughness, can increase the frictional force between annular protruding 4 and the spacing ring 3 for the connection between annular protruding 4 and the spacing ring 3 is more firm.

Preferably, in the locknut, the positioning cylinder 1 and the limiting ring 3 are integrally formed.

Preferably, as another embodiment of the present utility model, as shown in fig. 3, a spring washer 6 is disposed in the annular groove, and two ends of the spring washer 6 respectively abut against the annular groove and the annular protrusion 4.

In this embodiment, by arranging the spring washer 6 in the annular groove, the spring washer 6 can play a role of preventing loosening and increasing the pretightening force.

Although embodiments of the present utility model have been disclosed above, it is not limited to the details and embodiments shown, it is well suited to various fields of use for which the utility model is suited, and further modifications may be readily made by one skilled in the art, and the utility model is therefore not to be limited to the particular details and examples shown and described herein, without departing from the general concepts defined by the claims and the equivalents thereof.

Claims

1. The utility model provides a locknut, its characterized in that, including locating cylinder (1) and two nuts (2), locating cylinder (1) one end is coaxial to be equipped with spacing ring (3), the both ends of spacing ring (3) all are coaxial to be equipped with annular groove, the one end of nut (2) coaxial be equipped with annular bulge (4) that annular groove corresponds, two nut (2) set up spacing ring (3) both sides, its annular bulge (4) are inlayed respectively and are established in corresponding in the annular groove, are located the other end of nut (2) in locating cylinder (1) with the other end parallel and level of locating cylinder (1).

2. A locknut as claimed in claim 1, wherein a plurality of teeth (5) are uniformly distributed at the other end of the positioning barrel (1).

3. A locknut as claimed in claim 1, wherein the end portions of the annular recess bottom wall and the annular projection (4) are roughened.

4. A locknut as claimed in claim 1, wherein the locating cylinder (1) and the stop collar (3) are integrally formed.

5. A locknut as claimed in any of claims 1-4, wherein a spring washer (6) is provided in the annular recess, both ends of the spring washer (6) abutting the annular recess and the annular projection (4), respectively.