Safety inspection well

Safety inspection well

  • CN 102,477,749 A
  • Filed: 11/25/2010
  • Published: 05/30/2012
  • Est. Priority Date: 11/25/2010
  • Status: Active Application
First Claim
Patent Images

1. manhole;

  • Comprise inspection shaft (1);

    Well lid (2) is characterized in that;

    the inspection shaft mouth is equipped with well lid (2), and the interior well lid (3) with rigidity is installed under the well lid (2);

    Well lid (3) is installed on the interior support (4) of inspection shaft or on the seam (5) in described, and the part of described support (4) is inserted at least one hole on the inspection shaft wall.

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