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Hard-lock

A technology of nuts and pre-tightening nuts, applied in the direction of nuts, screws, bolts, etc., can solve the problems of loose workpieces, troubles, easy loosening of nuts, etc., and achieve the effect of improving the ability of anti-loosening

Active Publication Date: 2020-10-20
石卫东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in actual use, after the nut is tightened for a long time, the nut is prone to loosening due to vibration, etc., which further leads to loosening of the workpiece and brings unnecessary troubles

Method used

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Embodiment Construction

[0022] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail with reference to the accompanying drawings.

[0023] The present invention provides Figure 1-5 The shown never loosening nut includes a bolt 1 and a groove nut 2. A groove 3 is opened in the groove nut 2 and a thread is provided in the middle of the side wall of the groove 3. The groove 3 The groove nut 2 is threaded with the bolt 1 through the thread connection, the bottom end of the groove nut 2 is provided with a pre-tightening nut 4, the inner wall of the pre-tightening nut 4 is threadedly connected to the bolt 1, and the groove nut 2 and the pre-tightening nut 4 are arranged between There is a metal lock ring 5, the inner wall of the metal lock ring 5 is threadedly connected with the bolt 1, the metal lock ring 5 matches the groove 3, and the metal lock ring 5 is provided with a notch 6 on one si...

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Abstract

The invention discloses a hard-lock. The hard-lock comprises a bolt and a groove nut. A groove is formed in the groove nut. The inner wall of the groove is in threaded connection with the bolt. A pre-tightening nut is arranged at the bottom end of the groove nut. The interior of the pre-tightening nut is in threaded connection with the bolt. A metal lock ring is arranged between the groove nut andthe pre-tightening nut. The inner wall of the metal lock ring is in threaded connection with the bolt. A notch is formed in one side of the metal lock ring. The notch is internally and movably connected with a wire. The wire is matched with the notch. The top end of the wire is attached to the side wall of the bolt. The top end of the wire is matched with the groove nut. According to the hard-lock, through the cooperative action of the groove nut, the wire and the metal lock ring, the pre-tightening nut can not be unscrewed, when a workpiece vibrates, vibration reduction is conducted by the pre-tightening nut and the metal lock ring, then in cooperation with the clamping of an eccentric groove by the metal lock ring, the anti-loosening capability is greatly improved, and the effect of never loosening is achieved.

Description

Technical field [0001] The invention relates to the technical field of nuts, and in particular to a nut that never loosens. Background technique [0002] Nut, also known as nut, is a kind of fixing tool. There is a threaded cavity in the center of the nut. There are threads on the inside of the threaded cavity. Nuts are mostly hexagonal, followed by square. It is an element that all manufacturing machinery must use. Different materials are divided into carbon steel, stainless steel, non-ferrous metals (such as copper), etc. According to the attributes, they mainly include national standard (GB), German standard (DIN), international standard (ISO), Japanese standard (JIS), American standard standards (ASTM / ANSI) and other standards, among which the national standard, German standard, and Japanese standard are represented by M (such as M8, M16), and the American and British standards are represented by fractions or # (such as 8#, 10#, 1 / 4, 3 / 8), Nuts are parts that closely co...

Claims

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Application Information

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IPC IPC(8): F16B39/12F16B39/20F16B39/282
CPCF16B39/126F16B39/20F16B39/282
Inventor 石卫东
Owner 石卫东
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