Fastening element

Fastening element

CN
  • CN 102,652,226 A
  • Filed: 12/01/2010
  • Published: 08/29/2012
  • Est. Priority Date: 12/16/2009
  • Status: Active Application
First Claim
Patent Images

1. one kind is used for being anchored at by the fastening piece of the boring of undercutting (1),-have bar section (2) and an expansion element (3),-wherein, on bar section (2), be provided with the expanding body (8) and the load device (7) that are used for dilating expansion element (3),-wherein, expansion element (3) is designed to sleeve shape,It is characterized in that,-expansion element (3) has the matrix (13) of annular,-upward be provided with intumescent sheet (14) at matrix (13) in the side of packing into, and-this intumescent sheet (14) has aperture (17).

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×