Belt buckle seat structure

The invention discloses a belt buckle seat structure. The structure comprises a belt buckle seat and a plate control piece, a fastening part is arranged at the front end of the belt buckle seat; the rear end of the belt buckle seat is provided with a coupling portion, a pivot groove is formed in the center of the upper part of the fastening part; a pair of grooves are also formed in the inner sidebelow the fastening part; a bolt hole is formed in each of the two sides of the belt buckle seat; the plate control piece is integrally formed and manufactured. A fastening shaft with a convex stopper is arranged at one end of the plate control piece; the fastening shaft is arranged in the fastening part; a convex part of a fixing piece is embedded into the grooves; at least more than one bolt ismatched and penetrates through the grooves from the bolt hole to be positioned in the positioning hole of the fixing piece; the two sides of a main limiting frame are matched with the bolts to be fixed to the two sides of the