CN218894860U9

CN218894860U9 - Lock nut

Info

Publication number: CN218894860U9
Application number: CN202222961616.8U
Authority: CN
Inventors: 王英峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-06-09
Anticipated expiration: 2032-10-31
Also published as: CN218894860U

Abstract

The locknut comprises a nut body, threads, a wedge-shaped inclined plane and a damping ring. When the locknut is screwed into the required position of the screw rod, the bolt and the locknut are mutually screwed, the tip of the thread of the bolt tightly props against the wedge-shaped inclined plane at the thread root of the locknut, and meanwhile, the damping ring embedded by the locknut is extruded and deformed by the screw thread and rebound to extrude the screw thread to be matched with the wedge-shaped inclined plane of the locknut, and meanwhile, double extrusion force and friction force are applied to the screw thread, so that the locknut cannot loosen under strong vibration.

Description

Lock nut

Technical Field

The utility model relates to the technical field of fasteners, in particular to a locknut.

Background

The locking by using screws is already an existing technology in many industries, but the existing screws often have the problems that the clearance left after the external screw thread of the screw rod is meshed with the internal screw thread of the nut is too large, the bearing surface is single, the clamping force is insufficient, the locking force and the anti-loosening effect are greatly reduced, and the screw and the nut are often loosened in the vibration environment or after long-term use. In order to solve this problem, many proposals have been made to improve the screw structure, but the problem of loosening cannot be thoroughly solved, and the structure is complex and the cost is high. For example, both the 30-degree wedge thread locknut and the locknut embedded in the nylon ring cannot achieve ideal locking performance, but after the two are skillfully combined, a very ideal locking effect can be generated.

The utility model comprises the following steps:

the utility model aims to provide a nut which thoroughly solves the defect of poor anti-loosening effect of the existing nut.

The locknut of the present utility model includes: nut body, screw thread, wedge inclined plane, embedded part, damping circle.

The locknut of the utility model has the characteristics that: the nut is characterized in that the nut body is provided with a through hole, internal threads are arranged in the through hole, a wedge-shaped inclined plane is arranged on the side surface of the thread at the root of each internal thread, an embedded part is arranged at one end part of the nut body, the embedded part is annular, a damping ring is arranged in the hollow space, or a damping ring with a protruding part at the inner side is embedded.

Description of the drawings:

FIG. 1 is a schematic top view of a locknut of the present utility model embedded in a damping band.

FIG. 2 is a schematic plan view of a locknut of the present utility model embedded in a damping band with a protrusion.

Fig. 3 is an exploded perspective view of the locknut of the present utility model embedded in a damping band.

FIG. 4 is a schematic top view of the inner side of the damping band of the present utility model with a protrusion.

Fig. 5 is an enlarged partial schematic view of the threads of the locknut and wedge bevel extrusion screw threads of the present utility model.

Fig. 6 is a schematic view of a locknut of the present utility model from below.

The reference symbols in the drawings: the nut comprises a nut body (1), a nut thread (2), a wedge-shaped inclined plane (3), a damping ring (4), a damping ring (5), a damping ring with a protruding part (6), a screw thread (7) and an embedded part.

Detailed Description

The utility model is further described below with reference to the drawings and the implementation, but is not to be taken as a basis for limiting the utility model. All simple and equivalent changes and modifications made in accordance with the claims and the specification are intended to be within the scope of the claims.

The locknut of the present utility model includes a nut body, threads, wedge ramps, an embedded portion, and a damping ring. When the locknut is screwed into the required position of the screw, as the thread bottoms of the locknut are provided with the wedge-shaped inclined planes, when the bolt and the locknut are mutually screwed, the thread tips of the bolt tightly prop against the wedge-shaped inclined planes at the thread bottoms of the locknut, so that a large locking force is generated, at the moment, the damping rings in the embedded part of the locknut or the damping rings provided with the convex parts are extruded and deformed by the screw threads and rebound to extrude the screw threads, the friction force and the locking force between the damping rings and the screw threads are increased, and the damping rings are matched with the wedge-shaped inclined planes of the locknut, and simultaneously, double extrusion force and friction force are applied to the screw threads, so that the locknut cannot loosen under strong vibration.

Claims

1. The anti-loose nut comprises a nut body (1), threads (2), wedge-shaped inclined planes (3), embedded parts (7) and damping rings (4), and is characterized in that the nut body is provided with a through hole, the through hole is provided with internal threads (2), each internal thread root is provided with a wedge-shaped inclined plane (3), one end part of the nut body is provided with one embedded part (7), and the damping rings (4) are arranged in the embedded parts.

2. Locknut according to claim 1, characterized in that the damping ring (4) is provided with damping projections on the inside, which damping ring is arranged to be deformable and spring back against the screw thread (6) after being pressed by the screw thread (6).