External corrugated-type plastic enwound structure-wall tube with reinforced inner fin

External corrugated-type plastic enwound structure-wall tube with reinforced inner fin

CN
  • CN 202,125,676 U
  • Filed: 05/11/2011
  • Issued: 01/25/2012
  • Est. Priority Date: 07/06/2010
  • Status: Active Grant
First Claim
Patent Images

1. internal rib reinforcing outer ripple type plastic twining structured wall pipe;

  • Comprise the tubing body that twines the welding moulding by the band spiral;

    Said tubing body comprises cylindrical wall, spiral surrounding hollow stiffening rib above that and the enhancing internal-rib perpendicular to tube wall that is positioned at the hollow stiffening rib;

    This enhancing internal-rib is divided into two hollow cavities arranged side by side with said hollow stiffening rib, it is characterized in that;

    the junction plane of said welding moulding is positioned at this enhancing internal-rib place.

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