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Self-locking nut

A technology of self-locking nuts and nut bodies, which is applied in the direction of nuts, screws, bolts, etc., to achieve the effects of easy installation, guaranteed geometric accuracy, and improved work efficiency

Active Publication Date: 2011-08-03
BEIJING CHUNLIZHENGDA MEDICAL INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of the existing locking device and provide a self-locking nut with a new structure. The technical problem to be solved is to make it less parts, easy to install, firm to lock, and can shorten the operation time , improve work efficiency and enhance the firmness of locking parts, making it more suitable for practical use

Method used

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Examples

Experimental program
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Embodiment Construction

[0027] see Figure 1-3 As shown, the self-locking nut of the present invention includes a nut body 1 and an elastic part 2 .

[0028] Wherein, the structure of the nut body 1 is the same as that of the existing nut, and the center is a screw hole 11 with an internal thread, and the outer side can be designed as a hexagonal nut or other shapes as required.

[0029] The elastic part 2 can be in the shape of a hollow spherical crown as shown in the figure, and can be fixedly connected with the nut body 1 through the bottom edge 21 , or the elastic part 2 and the nut body 1 can be integrally formed. Preferably, the joint between the elastic part 2 and the nut body 1 is arc-shaped as shown in the figure, the radius of the bottom surface of the spherical cap is equal to the radius of the circumscribed circle of the nut body, and the ratio of the radius of the bottom surface of the spherical cap to the radius of the spherical cap surface can be It is 23:24.

[0030] The top of the ...

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PUM

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Abstract

The present 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 joint part of the bottom side of elastic part and the nut body is arc-shaped. 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.

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16B37/00F16B39/284
Inventor 史春宝张金锁
Owner BEIJING CHUNLIZHENGDA MEDICAL INSTR
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