A rebar-free, high-sealing flanged built-in bracket flue structure

Abstract

This utility model discloses a high-sealing flanged built-in bracket box flue structure that requires no rebar installation. It includes a flanged built-in bracket box, with a flanged skirt plate vertically fixed to the middle of the box body and the outer walls of each side panel. The box body above the flanged skirt plate forms an upper insertion protrusion, and the box body below the flanged skirt plate forms a lower insertion protrusion. The prefabricated flue includes a lower prefabricated flue and an upper prefabricated flue. The flue opening accommodates the insertion of the lower and upper insertion protrusions. All connections are sealed with caulking rings. The flanged skirt plate extends to the floor side and covers the pre-reserved flue opening on the floor, extending to the top surface of the floor. This utility model replaces the rebar support bars with a flanged built-in bracket box, which is entirely built into the prefabricated flue. The connection to the floor is achieved through the flanged skirt plate, resulting in stable force distribution and convenient construction. The flanged skirt plate controls the installation position of the upper prefabricated flue. The connection between the flue and the flanged skirt plate is sealed with double-layer grouting, effectively avoiding the risk of smoke leakage during flue construction.

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