DOWEL FOR FIXATION OF HEAT INSULATION BOARDS Russian patent published in 2012 - IPC F16B13/00 

FIELD: construction.

SUBSTANCE: dowel for fixation of heat insulation boards comprises a polymer fastening element in the form of a rod with a longitudinal hole, consisting of a head zone with a pressing disc at its end and arranged as a whole with a disc of a flap cover, capable of closing the inlet section of the longitudinal hole in its closed position, a distance and a spacer zones, and also a spacer element in the form of a rod with a head at its one end. A cavity formed by a longitudinal hole and a cover in its closed position is connected is connected with atmospheric air by a ventilation channel, configuration and location of which prevent ingress of drop moisture from atmosphere into the cavity, also in the initial position of the cover its axis is parallel to the axis of the longitudinal hole. The lower surface of the cover is distant from the upper surface of the disc.

EFFECT: simplification and higher quality of dowel installation procedure actuation and higher level of dowel spacer element head protection against corrosive action of atmospheric moisture.

5 cl, 5 dwg