CN218294109U

CN218294109U - Variable-tooth anti-loosening thread

Info

Publication number: CN218294109U
Application number: CN202220887371.6U
Authority: CN
Inventors: 王英峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-06
Filing date: 2022-04-06
Publication date: 2023-01-13
Anticipated expiration: 2032-04-06

Abstract

The utility model discloses become tooth locking screw includes: threads and thread-to-thread bevels or curves. The thread on two sides of the thread form angle between the variable-thread anti-loosening threads is provided with a variable-thread inclined plane or curved surface respectively, and under the matching action of external force, the two inclined planes of the threads corresponding to the mutual connection of the variable-thread anti-loosening threads can be clamped tightly.

Description

Variable-tooth anti-loosening thread

Technical Field

The utility model relates to a fastener technical field especially relates to a locking screw thread.

Background

The locking by utilizing the screw is the existing technology in many industries, but the conventional screw has the problems that the clearance left after the external thread of the screw is meshed with the internal thread of the nut is too large, the force bearing surface is single, the clamping force is insufficient, and the locking force and the anti-loosening effect are greatly reduced, so that the screw and the nut are loosened in a vibrating environment or after long-term use. In order to improve the problem, many previous proposals have been made to improve the screw structure, but the problem of loosening cannot be solved completely, and the structure is complex and the cost is high.

The invention content is as follows:

the utility model aims at providing a thoroughly solve the not good drawback of current screw thread locking effect.

The utility model discloses become tooth locking screw includes: screw thread, screw thread variable pitch bevel.

The utility model discloses become tooth locking screw's characteristics: one or two variable-tooth inclined planes or variable-tooth curved surfaces are arranged on the threads on two sides of the tooth form angle between every two adjacent threads, and the variable-tooth anti-loose threads and the tooth form angle are matched with external force and can clamp two inclined side surfaces of the thread threads connected with the variable-tooth anti-loose threads. The tooth form angle space or angle of the variable-tooth anti-loose thread is smaller than the volume or angle of the corresponding threads connected with the variable-tooth anti-loose thread.

Description of the drawings:

fig. 1 is a partial enlarged view of two oblique side surfaces of the variable-pitch check thread of the present invention, which are clamped by external force, of the thread teeth connected to each other.

Fig. 2 is a partial enlarged view of two oblique side surfaces of the screw thread which is tightly connected with the variable-thread anti-loosening screw thread of the utility model, wherein the thread form angle and the two variable-thread oblique surfaces are under the action of external force.

Reference numbers in the drawings: (1) screw thread, (2) screw thread variable tooth inclined plane, (3) clamped screw tooth, (4) tooth profile angle

Detailed Description

The following further describes the present invention with reference to the drawings and examples, but the present invention is not limited thereto. All simple equivalent changes and modifications made according to the claims and the contents of the specification are included in the scope of the claims of the present invention.

Embodiment the utility model discloses become tooth locking screw, become tooth inclined plane or curved surface including screw thread and screw thread. After the nut screw in screw required position that is provided with variable tooth check screw, because the utility model discloses a tooth form angle space or the angle of variable tooth screw are less than the volume or the angle of the screw tooth that corresponds rather than interconnect, so it receives the mating reaction of external force to become tooth check screw, makes tooth form angle and variable tooth inclined plane or curved surface can press from both sides two oblique sides of pressing from both sides tight screw thread rather than interconnect.

Claims

1. The variable-thread anti-loosening thread comprises a thread (1) and a thread variable-thread inclined plane (2) or a curved surface, and is characterized in that: one or two variable tooth inclined planes (2) or curved surfaces are arranged on the screw teeth on two sides of the tooth form angle (4) between every two adjacent screw threads and are matched with external force, so that the tooth form angle (4) and the variable tooth inclined planes (2) or curved surfaces can clamp two inclined side surfaces of the screw teeth (3) which are connected with each other correspondingly.

2. The variable thread anti-loosening screw according to claim 1, wherein: the tooth form angle space or angle of the variable-tooth anti-loose thread is smaller than the volume or angle of the corresponding threads connected with the variable-tooth anti-loose thread.