Building structure reinforcing and connecting device based on building construction

The utility model discloses a building structure reinforcing and connecting device based on building construction, and relates to the technical field of building construction. According to the technical key points, the device comprises a base, a sleeve is fixedly connected to the top of the base, a threaded rod is inserted into the top of the sleeve, a sliding groove is formed in the threaded rod in the axial direction, a sliding block is slidably connected into the sliding groove, the sliding block is fixedly connected with the inner side wall of the sleeve, and the threaded rod is sleeved with an adjusting threaded sleeve; the adjusting screw sleeve is in threaded connection with the threaded rod, the end face of one side of the adjusting screw sleeve is rotationally connected with the sleeve, a plurality of grooves are formed in the peripheral side of the adjusting screw sleeve, a first U-shaped frame is fixedly connected to the top end of the threaded rod, a sliding sleeve is rotationally connected into t