A waterproof plugging connection structure for an outer wall bolt hole

Abstract

This utility model discloses a pre-waterproof sealing connection structure for bolt holes in exterior walls, comprising: a waterproof load-bearing base layer, which is a flexible waterproof membrane with a centrally symmetrical shape; a waterproof coating layer, the outer side of which is fixedly connected to the inner side of the waterproof load-bearing base layer, and made of a viscous waterproof coating; a tearable protective film, the outer side of which is bonded to the inner side of the waterproof coating layer; and a positioning mold column, which is a positioning component whose inner end is inserted into the bolt hole of the concrete structure, with a variable cross-section, gradually decreasing in size from the outside to the inside. The outer end of the positioning mold column passes through connection holes opened at corresponding positions in the center of the waterproof load-bearing base layer, the waterproof coating layer, and the tearable protective film, and the outer end surface of the positioning mold column is fixedly connected to each connection hole around its circumference. This utility model realizes the construction sequence of waterproofing first and then sealing, and is an integrated prefabricated waterproof structure with double protection. It eliminates the need for on-site painting, ensures the thickness of the waterproof coating, ensures construction quality, and saves construction time.

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