BLAST RESISTANT PANEL Russian patent published in 2014 - IPC E04B1/92 E04B1/36 

FIELD: blasting operations.

SUBSTANCE: in blast resistant panel comprising a metal armoured frame with metal armoured plating and filler - lead crumbs there are four fixed pipe-supports in the ends. In the cover of the explosive object four support rods are tightly sealed, which are telescopically inserted into the fixed pipe-supports of the panel. On each of the elastic support rods the sheet-rest is secured by welding, which is screwed to the damper base, and the base, coaxially with the rod, is attached to the sleeve by a flange with the screws, made of a brittle decaying material (porcelain). The elastic part of the decaying element is made in the form of at least three leaf springs, facing with their convex part towards the axis of the rod, which has a threaded part for fastening the clamping sleeve-type element with grooves for fixing one end of the leaf springs, and their other end is secured in a damper base by cast polyurethane.

EFFECT: improving reliability of triggering of explosion protection devices at emergency explosion at the object and ensuring the return of these structures to the initial position after the explosion.

4 cl, 2 dwg