Four-wheel pulley

Four-wheel pulley

  • CN 202,181,779 U
  • Filed: 08/05/2011
  • Issued: 04/04/2012
  • Est. Priority Date: 08/05/2011
  • Status: Active Grant
First Claim
Patent Images

1. four-wheel pulley;

  • It is characterized in that;

    comprise an outrigger, a crane, two internal frames, first bolster, second bolster, the 3rd bolster and four movable pulleies;

    Said first bolster, second bolster, the 3rd bolster are installed on the outrigger;

    Said crane be installed in the outrigger and with first bolster, second bolster on and the 3rd bolster be connected, this crane is provided with two internal frame installation shaft, said two internal frames are installed in the crane and respectively at the internal frame installation shaft and are connected;

    Said two internal frames respectively are provided with two movable pulleies, and a side of said outrigger is provided with the adjusting device that is used to regulate the crane position.

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