SEALING PLUG FOR CLOSING HOLES IN WALLS AND THE LIKE

摘要

A sealing plug including an elastic body and a stem coaxially assembled to one another. The elastic body has a main body which is suitable for being expanded radially when pulling on the free end of the stem which emerges out of said elastic body. The elastic body also has a head attached to the main body, the head having a compressive strength less than that in the main body.

主权项

1. A sealing plug for closing holes in walls and the like, of the type comprising
an elastic body and a stem coaxially assembled with one another, said elastic body comprising
a main body which is configured for being expanded radially when pulling on the free end of the stem which emerges out of the elastic body, thus exerting a radial closing pressure (p) on the inner face of the hole to be plugged, anda head attached to the main body, said head being configured for being compressed and for exerting an axial closing pressure (P) on the outer contact wall of the hole to be plugged when pulling on the free end of the stem, the head comprising a compressive strength less than that of the main body such that at least part of said head changes its geometry to adapt to the shape of the outer contact wall of the hole to be plugged, the sealing plug also comprising a first thrust washer arranged close to the opposite end of the area of attachment between said head and the main body and a second thrust washer arranged on the outer face of the head such that it enables the compression of the plug between said first and second thrust washers.