Self-locking bolt

A bolt and self-locking technology, which is applied in the direction of bolts, screws, nuts, etc., can solve the problems of unsatisfactory use effect, poor strength and high production cost of self-locking bolts, and achieve good self-locking effect, easy manufacture and low cost Effect

Inactive Publication Date: 2012-10-31
兴化市长江铁路器材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some self-locking bolts are unsatisfactory in use, and some are troublesome to manufacture, and the production cost is high; and some are not very strong.

Method used

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  • Self-locking bolt

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Embodiment Construction

[0012] Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail, but does not constitute any restriction to the present invention:

[0013] See attached figure 1 , a self-locking bolt, including a screw 2 and a nut 3 with a nut 1, the nut 3 and the screw 2 are respectively provided with internal and external threads matching each other, and one end of the nut 3 is also partially connected to a locking Pad 4, the locking pad 4 is provided with an internal thread that matches the external thread of the screw rod 2, and the locking pad 4 is provided with a local notch 5 that is opened inside and outside, and the locking pad 4 is surrounded by The length of the notch 5 arranged in the direction is 1 / 2 of the circumferential length of the lock pad 4, and the local connection surface between the nut 3 and the end face of the lock pad 4 is the same as the partial notch 5 arranged in the circumferential direction of the lock p...

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Abstract

The invention discloses a self-locking bolt which comprises a screw with a screw cap and a nut, wherein the nut and the screw are provided with internal and external threads in mutual matching respectively; one end of the nut is also connected with a locking pad; the locking pad is provided with an internal thread matched with the external thread of the screw; and the locking pad is circumferentially provided with a local notch penetrating through the inside and outside. The self-locking bolt disclosed by the invention has the advantages of simple structure, low cost and good anti-loosening self-locking effect, and is easy to manufacture.

Description

technical field [0001] The invention relates to an anti-loosening bolt. Background technique [0002] Fasteners composed of bolts and nuts are widely used in many occasions such as science and technology, production, processing and testing, as well as mechanical equipment and instruments. Ordinary bolts generally do not have a self-locking function, and they can basically meet the requirements for use in general occasions. However, when used in some occasions with high vibration, the bolts will loosen due to the vibration. Especially on a moving vehicle or a dynamic instrument, this imperceptible looseness will affect the normal operation of the work, and the severe one will cause an accident. Therefore, in some special occasions, it is necessary to use self-locking bolts to prevent loosening. Chinese patent CN200920218937.0 discloses a kind of anti-loosening combined bolt and nut, which is characterized in that one or both ends of the bolt or nut are designed a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B39/26
Inventor 钱中民王有清范军平蒋东升王春梅
Owner 兴化市长江铁路器材有限公司
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