Self-locking nut

A self-locking nut and nut body technology, applied to nuts, screws, bolts, etc., to achieve the effect of firm locking, wide industrial application value, and easy installation and operation
CN101608657AActive Publication Date: 2009-12-23BEIJING CHUNLIZHENGDA MEDICAL INSTR

Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING CHUNLIZHENGDA MEDICAL INSTR
Publication Date
2009-12-23

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Abstract

The invention relates to a self-locking nut which comprises a nut body and an elastic part, wherein the cross section of the elastic part is a hollow circular shape, the bottom side of the elastic part is fixed on the nut body, and the outer diameter of the bottom side is larger than that of the top; the top is provided with an opening, the size of which is equivalent to the large diameter of a screw hole of the nut body; and one or more rabbet(s) is / are arranged from the opening to the bottom side. The self-locking nut has fewer parts, easy installation and firm locking, so as to shorten the operation time, improve the working efficiency and enhance the fastness of a locking piece.
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Description

technical field

[0001] The invention relates to a mechanical locking device, in particular to a self-locking nut. Background technique

[0002] Nut locking is a commonly used mechanical connection method in the prior art. However, in fields such as medical devices that require high connection firmness, the single-nut connection cannot meet the requirements of locking and stability because it is easy to loosen. At present, there are mainly two kinds of devices to enhance the locking effect: one is to fix the object together by the main nut and the auxiliary nut. One is to put the spring washer in the operation first, and then screw in the nut to lock, which can also achieve a better fastening effect.

[0003] Although the above-mentioned locking device has a good fastening effect and is indeed progressive, it appears that there are many locking parts and high notches when used in products such as medical devices that require precise operation and firm locking. It is not eas...

Claims

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