Prefabricated part grouting device

The utility model discloses a grouting device for prefabricated parts, which is arranged between an upper prefabricated part and a lower prefabricated part to assist in grouting between the upper prefabricated part and the lower prefabricated part and comprises two long square timbers arranged in parallel and two short square timbers arranged at two ends of the long square timbers and used for connecting the two long square timbers. The long square timbers and the short square timbers define a rectangular frame, and a rectangular grouting cavity is formed in the rectangular frame. Exhaust holes communicated with the grouting cavity are formed in the two ends of the rectangular timber, and a grouting hole for grouting a grouting material into the grouting cavity is formed in the middle of the rectangular timber on at least one side; a through hole communicated with the grouting cavity is formed in the middle of the short square timber and connected with a guide pipe in a matched mode, and the outlet end of the