Three-dimensional adjusting and connecting system suitable for mounting special-shaped aluminum plate on inner side

The utility model relates to the technical field of curtain wall installation, and discloses a three-dimensional adjusting and connecting system suitable for installing a special-shaped aluminum plate on the inner side. The three-dimensional adjusting assembly comprises horizontal longitudinal adjustment formed by a second sliding groove and a sliding plate, horizontal transverse adjustment formed by a round hole and a long round hole, and vertical adjustment formed by a first sliding groove and a transverse section of a T-shaped connecting piece, and therefore adjustment of the spatial position of the three-dimensional adjusting assembly is achieved. Due to the fact that the three-dimensional adjusting assemblies are arranged between the aluminum plate curtain wall and the main body support, each three-dimensional adjusting assembly serves as a connecting point, and based on adjustment of the three-dimensional adjusting assemblies in the horizontal transverse direction, the horizontal longitudinal direction