Intelligent sensor preventing nut from loosening and dropping

Abstract

The invention discloses an intelligent sensor preventing a nut from loosening and dropping. The intelligent sensor comprises a shell body, a shell inner column and an early warning component, whereinthe early warning component is fixedly installed on the shell body, the shell body and the shell inner column enclose to form a hollow cylindrical structure, the shell body and the shell inner columnform an integral top end and the top end is provided with an upper cover, an elastic body is arranged between the inner bottom end of the shell body and the lower end outer surface of the upper cover,the elastic body is sleeved on the outer surface of the shell inner column, the lower end outer surface of the upper cover is provided with a conductive ring, the inner bottom end of the shell body is provided with a conductive strip, the top end of the conductive strip is provided with a conductive contact, the conductive strip and the conductive contact are electrically connected, and an input / output end of the conductive strip is electrically connected with a two-core wire. The sensor related in the invention has a contact type conduction structure, is simple in structure, has a small size, is low in manufacturing cost, and has stable use performance.

Description

technical field [0001] The invention relates to the technical field of sensors, in particular to an intelligent sensor for preventing nuts from loosening and falling off. Background technique [0002] Bolt and nut fastening connection forms are widely used. Nuts are one of the most commonly used fasteners. In principle, the matched thread is a self-locking thread. The self-locking thread will not loose due to the existence of axial force, but the working conditions of many occasions where the thread is applied are harsh, and the force on the thread pair is not only axial force but also other directions. Nuts may loosen. The impact of the loosening of the nut is unpredictable, and it may seriously cause life safety and other major property losses. [0003] There are many ways to prevent nuts from loosening, such as using locknuts, installing cotter pins with bolts, and using double nuts. However, long-term use will still cause the nuts to loosen, and the time for the nuts t...

AI Technical Summary

Problems solved by technology

The impact of the loosening of the nut is unpredictable, and it may seriously cause life safety and other major property losses

[0003] There are many ways to prevent loosening of nuts, such as using anti-loosening nuts, installing cotter pins with bolts, using double nuts, etc. However, long-term use will still cause the nuts to loosen, and the time for the nuts to loosen is unpredictable.

In the prior art, most of the tightening force measurement sensors are used to detect loose nuts, but the tightening force measurement sensors are relatively thick, complex in structure, expensive, and costly, and each sensor is equipped with a back-end analog acquisition processor. Multiple combinations use the early warning system to be complex

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