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Special eccentric lock nut

A technology of eccentric locking and locking nuts, which is applied in the direction of nuts, locking fasteners, screws, etc., can solve the problems of unsatisfactory anti-loosening measures, achieve the increase of anti-loosening friction, overcome easy self-loosening, and firmness good effect

Inactive Publication Date: 2018-10-16
JIANGSU DONGQI STANDARD PARTS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The fastening method of ordinary bolt and nut connection has a history of hundreds of years. It is widely used in all aspects of human production and life. Because it is related to the safety of life and property, the anti-loosening technology of bolt connection has always been the focus of people's research. So far, various anti-loosening measures are unsatisfactory, and all have defects in varying degrees.

Method used

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  • Special eccentric lock nut
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  • Special eccentric lock nut

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Embodiment 1

[0020] Such as Figure 1-3 As shown, a special eccentric lock nut of the present invention includes a lock nut 1, an eccentric nut 2 and a bolt 3 used in conjunction with the lock nut and the eccentric nut. Platform 4, the lower end surface of the lock nut 1 is provided with a groove hole 5 matched with the boss 4, the central axis of the boss of the eccentric nut 2 is not concentric with the central axis where the screw thread is located, and the lock nut 1 The central axis of the groove hole 5 is concentric with the central axis where the thread is located, and a 30-degree wedge-shaped slope 6 is formed at the bottom of the internal thread on the eccentric nut 2. When the bolt 3 and the eccentric nut are tightened mutually, the bolt 3 The cusps of the external thread on the top are abutted on the wedge-shaped slope 6 , and a washer 7 is provided on the lower end surface of the lock nut 1 , and the washer 7 is integrally formed with the lock nut 1 .

[0021] Preferably, as t...

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Abstract

The invention relates to connecting fasteners, in particular to a special eccentric lock nut. According to the adopted technical scheme, the special eccentric lock nut comprises a lock nut body, an eccentric nut and a bolt. The upper end face of the eccentric nut is provided with a boss extending upwards. The lower end face of the lock nut body is provided with a groove hole matched with the boss.A 30-degree wedge slope is formed at the thread bottom of an internal thread of the eccentric nut. When the bolt and the eccentric nut are mutually tightened, the thread tip of an external thread ofthe bolt abuts against the wedge slope. A gasket is arranged on the lower end face of the lock nut body. The gasket and the lock nut body are integrally formed. The special eccentric lock nut has theadvantages that compared with a traditional nut, the special eccentric lock nut has higher locking force, anti-fatigue and anti-shock effects and antiskid and anti-falling capabilities. The threads ofthe bolt and the nut are not damaged while the special eccentric lock nut conducts locking. The special eccentric lock nut can be reused, quite low in installation noise, stable in installation, freeof vibration and capable of effectively reducing impact to an operator and reducing the fatigue degree of the operator.

Description

technical field [0001] The invention relates to a connection fastener, in particular to a special eccentric lock nut. Background technique [0002] The fastening method of ordinary bolt and nut connection has a history of hundreds of years. It is widely used in all aspects of human production and life. Because it is related to the safety of life and property, the anti-loosening technology of bolt connection has always been the focus of people's research. So far, various anti-loosening measures are all unsatisfactory, and all have defectives in various degrees. Therefore, a new technical solution should be provided to solve the above problems. Contents of the invention [0003] The object of the present invention is to provide an eccentric lock nut with reasonable structure and good anti-loosening effect in view of the above-mentioned deficiencies. [0004] In order to achieve the above object, the technical scheme adopted in the present invention is: [0005] A special ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B39/12F16B37/00
CPCF16B39/12F16B37/00
Inventor 徐倚山徐小山沈峰花四艳
Owner JIANGSU DONGQI STANDARD PARTS