Self-sealing protective structure for eliminating the gap between the anti-blast door and the ground under the action of shock waves

Abstract

The invention discloses a self-sealing protective structure used for eliminating the gap between a blast resistant door and the ground under the effect of shock waves. The self-sealing protective structure is composed of a Y-shaped movable sealing strip and an adjustment base plate. The Y-shaped movable sealing strip is installed on a door plate in an inverted mode; the bottom of the Y-shaped movable sealing strip is flush with the bottom of the door plate; the Y-shaped movable sealing strip is composed of an upper half cuboid and a lower half inverted V-shaped body; the upper half cuboid is tightly connected with the door plate through a blot 4; the lower half inverted V-shaped body is composed of a vertically-downward plate block and an obliquely-downward plate block; a gap is arranged between the vertically-downward plate block close to the door plate and the door plate; the adjustment base plate is arranged at the gap between the lower half inverted V-shaped body and the door plate; a U-shaped groove with an opening facing toward the door plate is further formed between the upper half cuboid and the lower half inverted V-shaped body; and the depth of the U-shaped groove is one second to two thirds of the thickness of the upper half cuboid. The self-sealing protective structure is simple and compact in structure, safe and reliable.

Description

technical field [0001] The invention relates to the technical field of explosive test safety, in particular to a self-sealing protection structure for eliminating the gap between an anti-blast door and the ground under the action of shock waves. Background technique [0002] There is a risk of explosion in workshops or laboratories in key industries such as chemical industry, nuclear power, and weaponry. In order to prevent the shock wave and blasting flying pieces from endangering the safety of staff and equipment outside the anti-blast room in the event of an explosion, steel anti-blast doors are generally used as protection. At present, steel anti-blast doors have threshold type and non-threshold type. The type with threshold can prevent the shock wave from leaking from the gap between the bottom of the anti-blast door and the ground, but the threshold affects the transportation of materials, especially dangerous goods, Explosives require a smooth transportation process,...

AI Technical Summary

Problems solved by technology

Because the anti-blast door body is generally heavy, it is difficult to adjust the gap between the door body and the ground, and considering the possible unevenness of the ground and the deformation of the anti-blast door after long-term use, it is generally necessary to install the anti-blast door with the ground Reserve a gap of 5mm to 10mm between them. The existence of this gap becomes a loophole in the protection ability of the anti-blast door. When an explosion occurs, the shock wave will leak out of this gap, affecting the safety of people and equipment outside the door.

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