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Compound nut

A nut and compound technology, applied in the direction of nuts, screws, bolts, etc., can solve the problems of inability to prevent loosening, unsuitable fastening, and large thread damage, etc., and achieve the effect of strong practicability and simple structure

Inactive Publication Date: 2008-12-31
招远金王仪表科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of anti-theft nut has the following disadvantages: arc grooves are opened on the wall of the internal thread, which greatly damages the thread and is not suitable for fastening; only relying on steel pins or steel balls to block the rotation of the nut cannot prevent loosening

Method used

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Embodiment Construction

[0018] As shown in Figures 1 to 5, the specific embodiment of the present invention is a compound nut, which includes a nut body (1) and an outer casing (2). The nut body (1) is provided with a through internal thread, and the nut body (1) ) is provided with a shoulder (11) on the outer diameter of the upper end, the outer diameter of the shoulder (11) is larger than the inner diameter of the jacket (2), and the joint between the nut body (1) and the jacket (2) is provided with a ratchet mechanism for one-way engagement The ratchet mechanism consists of two ratchets (12) arranged on the outer diameter of the nut body (1) and two ratchets (21) arranged on the inner diameter of the outer casing (2). The end is provided with a slot (13) in the axial direction, and the axial height of the slot (13) is less than the height of the nut body (1), that is, the slot (13) is not cut to the bottom in the axial direction, and the nut body (1 ) is provided with an outer cone (14) on the out...

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PUM

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Abstract

The invention relates to a fastening piece, in particular to a compound nut. The compound nut comprises a nut body and a outer sleeve, wherein, a penetrated internal thread is arranged on the nut body, a circular bead is arranged on the external diameter of the upper end of the nut body, the external diameter of the circular bead is larger than the internal diameter of the outer sleeve, a ratchet mechanism forming one-way meshing is arranged at the matching position between the nut body and the outer sleeve, and the ratchet mechanism is composed of one or more ratchet wheels arranged on the external diameter of the nut body and one or more ratchet wheels which are arranged on the internal diameter of the outer sleeve. The compound nut has the functions of fastening, anti-loosing and anti-unloading, and has the advantages of simple structure and strong practicability.

Description

Technical field [0001] The invention relates to a fastener, in particular to a compound nut. Background technique [0002] The compound nut of the prior art is to make two arc grooves from deep to shallow gradually on the wall of the internal thread axisymmetrically. The axial length of the groove is the pitch of 2.5 to 4.5, and a steel pin or steel ball is respectively placed in the groove. Then use the core plug and the end retaining ring to fix the relative position of the steel pin or steel ball. This type of anti-theft nut has the following disadvantages: arc grooves are opened on the wall of the internal thread, which greatly damages the thread and is not suitable for fastening; only relying on steel pins or steel balls to block the rotation of the nut cannot prevent loosening. Contents of the invention [0003] The object of the present invention is to overcome the deficiencies of the prior art, and provide a compound nut (type III) for preventing loosening and unl...

Claims

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Application Information

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IPC IPC(8): F16B41/00F16B39/24F16B37/00
Inventor 孙吉发
Owner 招远金王仪表科技有限公司
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