External thread rotating type profiled bar structure

External thread rotating type profiled bar structure

  • CN 205,118,635 U
  • Filed: 11/28/2013
  • Issued: 03/30/2016
  • Est. Priority Date: 11/28/2013
  • Status: Active Grant
First Claim
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1. the rotatable profile shapes structure of external thread rotary, it is characterized in that:

  • comprise profile shapes cylindrical shell (1) and helical vertically hung scroll (2), described profile shapes cylindrical shell (1) inside is provided with cross section and does not have vicissitudinous rib (3) and hollow cylinder (4), described helical vertically hung scroll (2) along extruding the sectional shape in direction, size, area all do not change, but have the center line along a setting to rotate a certain angle between every layer cross section.

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