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smart nut

A nut, clever technology, applied in the direction of nuts, threaded fasteners, connecting components, etc., can solve the problems of high cost, volume and shape of measuring tools affecting nuts, difficulties, etc.

Active Publication Date: 2015-12-16
徐子玉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is very difficult to set a force gauge on a small nut
On the one hand, the use of nuts cannot be affected in terms of volume and shape; on the other hand, since the nut itself is a low-value product, measuring tools cannot introduce excessive costs

Method used

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Embodiment Construction

[0012] The smart nut of the present invention includes a nut body 1, which is characterized in that: the side of the body 1 is provided with an induction layer 2 made of elastic transparent material, and there is a cavity 3 in the induction layer 2. The cavity 3 is filled with piezochromic material.

[0013] Further, the piezochromic material emits light when the pressure exceeds a safe pressure.

[0014] The sensing layer 2 is made of a transparent elastic material such as polymethyl methacrylate, and has a cavity 3 inside, and the cavity 3 is filled with a piezochromic material, such as liquid crystal or liquid crystal mixture.

[0015] In this embodiment, liquid crystal cholesteryl ester or a mixture thereof is used as the piezochromic material. This material can be purchased from Hallcrest Liquid Crystal Technology, Inc., Stepnell Reach, 541 Blandford Road, Hamworthy, Poole, United 9, Dorset BH 165BW. Available mixtures vary in color and physical properties, including CN...

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Abstract

The invention discloses an intelligent nut, which comprises a nut body. The intelligent nut is characterized in that: a sensing layer made from an elastic transparent material is arranged on the lateral surface of the body; and a cavity is formed in the sensing layer, and is filled with a piezochromism material.

Description

technical field [0001] The invention relates to a nut. Background technique [0002] Nuts are commonly used fastening tools, which provide fastening force for mechanical parts by tightening threads. In many occasions of mechanical assembly, it is necessary to measure the tightening force of the nut more accurately. This often requires complex specialist tools, such as electric screwdrivers with set torque. For nuts with different fastening forces, different types of electric screwdrivers are required, which is very troublesome. [0003] Therefore, there is an idea: if the nut itself can reflect the size of the tightening force, there is no need to equip complicated tools. However, it is very difficult to set a force measurement tool on a small nut. On the one hand, the use of the nut cannot be affected in terms of volume and shape, and on the other hand, since the nut itself is a low-value product, the measuring tool cannot introduce excessive costs. Contents of the in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16B37/00
Inventor 徐子玉
Owner 徐子玉