Clever nut

Clever nut

  • CN 102,619,846 B
  • Filed: 03/31/2012
  • Issued: 12/16/2015
  • Est. Priority Date: 03/31/2012
  • Status: Active Grant
First Claim
Patent Images

1. a clever nut, comprises nut body, it is characterized in that:

  • the side of described body is provided with the inducing layer made with elastic apparent material, has a cavity in described inducing layer, is full of piezochromic material liquid crystal cholesterol ester in described cavity;

    Described body pressure is transmitted on described piezochromic material liquid crystal cholesterol ester, when described body pressurized exceedes fastening force threshold value, causes the piezochromic material liquid crystal cholesterol ester in described cavity to produce optic response.

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