Constructional engineering profiled steel sheet fixed connection structure

The utility model discloses a profiled steel sheet fixing and connecting structure for constructional engineering, and relates to the technical field of profiled steel sheet connecting structures. The device comprises a pipe sleeve and a contour plate piece, the circumferential side of the pipe sleeve is provided with two inserting ports which are arranged oppositely and used for inserting the contour plate piece, a rotating shaft is rotationally installed in the pipe sleeve along the axis of the pipe sleeve, and two connecting plates located on the two end sides in the pipe sleeve are fixedly connected to the rotating shaft. And two arc-shaped insertion plates which are arranged around the same hour hand are fixedly connected between the two connecting plates. The arc-shaped inserting plate rotates and then penetrates through the penetrating openings of the two contour plate pieces, plane abutting stress after connection can be formed, a point stress structure of bolt connection is avoided, the stability of