METHOD OF SECURING PROTECTIVE DOOR IN PREFABRICATED REINFORCED CONCRETE FORTIFICATION STRUCTURE Russian patent published in 2024 - IPC E04H9/00 E06B5/10 

FIELD: construction.

SUBSTANCE: invention relates to a method of securing a protective door to an opening of a prefabricated fortification structure. Method of securing a protective metal door in a prefabricated reinforced concrete fortification, the main volume of which is formed from ordinary and end blocks, and the approach gate is assembled from the blocks of the input group, consists in the fact that in the gap between the blocks of the input group of the gate, an additional element is installed, which forms a protrusion inside the input gate, to which a protective door is attached by means of six bolts, wherein the connection is sealed by means of a rubber seal available in the door set, and as an additional element forming a projection inside the entrance porch, to which the protective door is attached, a door frame of the protective door is used, which is made in the form of a plate.

EFFECT: creation of a technological method of fastening and design of a protective door in a prefabricated fortification structure, significantly reducing labour and material costs, reducing the time for its arrangement, ensuring the tightness of the structure, at the same time, the range of used elements is reduced and there is a possibility of dismantling the structure with transfer and assembly in another place.

2 cl, 6 dwg