Reinforcing device for fabricated building joint

The utility model discloses a reinforcing device used for a fabricated building joint, and relates to the technical field of fabricated buildings, the reinforcing device comprises a horizontal plate and a guide frame plate which are connected with each other, the horizontal plate is provided with a locking stud I, the guide frame plate is provided with two vertical plates which are symmetrically arranged, each vertical plate is provided with a locking connecting assembly, and the locking connecting assemblies are connected with the horizontal plate. A sliding sleeve block is installed on the horizontal plate in a sliding mode, a driving screw is installed on the sliding sleeve block in a threaded connection mode, a crank handle is installed at the end of the driving screw, and a supporting plate is hinged between the sliding sleeve block and the guide frame plate; the two vertical plates can be driven at the same time through the arranged driving mechanism, the two vertical plates can move oppositely or oppos