ADJUSTABLE BUCKLE APPARATUS

An adjustable buckle apparatus, comprising a buckle base () and an adjustment assembly (), the adjustment assembly () being movably arranged on the buckle base (); when the adjustment assembly () moves from a first position to a second position, the adjustment assembly () can be linked to a connecting strap () so as to change the length of the connecting strap () within the buckle base (); when the length of the connecting strap () within the adjustable buckle apparatus increases, the connecting strap () located between a child safety seat and an automobile seat can be rapidly tightened, so as to constraint the child safety seat stably.