Pre-tightening nut assembly, centrifugal fan and air-conditioning equipment

Pre-tightening nut assembly, centrifugal fan and air-conditioning equipment

  • CN 105,240,378 A
  • Filed: 11/12/2015
  • Published: 01/13/2016
  • Est. Priority Date: 11/12/2015
  • Status: Active Application
First Claim
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1. a pre-load nut assembly (100, 100 '"'"'), for fastening to be tightened, it is characterized in that, comprise initiatively nut (1, 1 '"'"') and trimming piece (3, 3 '"'"'), described trimming piece (3, 3 '"'"') described active nut (1 is set in, 1 '"'"') outside, at described active nut (1, 1 '"'"') and described trimming piece (3, 3 '"'"') regulating mechanism is provided with between, described trimming piece (3, 3 '"'"') can by described regulating mechanism relative to described active nut (1, 1 '"'"') move to described to be tightened direction to compress described to be tightened.

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