US Patent 10512308 Buckle assembled with whistle

The present disclosure relates to a buckle assembled with a whistle, the buckle including: a plug member having locking arms that are formed at both ends at a front side of a base, and a guide rod that protrudes from the base at an intermediate side between the locking arms; and a socket member having a guide groove which is formed at a center of the socket member so as to be opened at an upper side thereof to accommodate the guide rod at the center, and chambers which are formed at both sides of the guide groove so that the locking arms at the both ends are inserted into the chambers, in which the guide rod is configured as the whistle.