Patent ID: 8281464

Claim:
A buckle, including a first fastener and a second fastener mating with the first fastener, wherein the second fastener has a hook, the first fastener has a socket, a locking piece being provided in the socket, a first locking portion being formed on the socket to be engaged with the hook, wherein the locking piece is slidingly mounted in the socket to prevent the hook from separating from the first locking portion, wherein the socket is mounted with a push button connected to the locking piece for pushing the locking piece, and the push button has a button hook connected to the locking piece, wherein the locking piece and the socket are in interference fit, the locking piece is connected with an elastic piece, one end of the elastic piece is mounted on the locking piece, and the other end thereof abuts the socket, wherein the locking piece includes a pushing portion connected to the push button and a stopper connected to the pushing portion and formed on both sides of the pushing portion, the stopper is positioned to cooperate with the second fastener, one end surface of the stopper is formed with an accommodating trough for receiving an elastic piece, the elastic piece is received in the accommodating trough with a portion thereof protruding from the accommodating trough to abut the socket, the socket has a guiding groove, and the locking piece is mounted in the guiding groove to slide along the guiding groove, wherein an upper surface and a lower surface of the pushing portion protrude from the stopper, the stopper includes a stopping body and a stopping boss protruding from the stopping body, the stopping boss is positioned adjacent to the pushing portion, the stopping boss is formed on each side of the pushing portion and located at a level higher than that of one end surface of the pushing portion, the stopping boss and the pushing portion form a restricting trough, and the pushing portion has a button locking trough for mating with the push button, and wherein the stopper has a stopping strip, a mounting groove is formed between the stopping strip and the pushing portion, one end surface of the stopping body and the stopping boss are positioned to cooperate with the second fastener, and one end surface of the stopping body cooperating with the second fastener is formed into a slope.