Foldable structure for baby stroller

A foldable structure for a baby stroller comprising two joints;

• a push rod pivotally connected to each of the joints,
• a front support connected to each of the joints and having a sliding member fitted thereover and located close to the joint;
• a rear support connected to each of the joints;
• a quadrilateral linkage that is pivotally connected between the two front supports;
• and
• a seat that is pivotally connected to and located above the quadrilateral linkage;
• wherein the sliding member is pivotally connected to and moved together with the push rod and the rear support by an upper link and a lower link respectively;
• the quadrilateral linkage is linked to two front wheel sets and the two sliding members;
• the two front wheel sets are pivotally connected to one end of the front support opposite to the end of the front support pivotally connected to the joint;
• when the joint is released from a locked state, the sliding members are pushed by the push rod through the upper link and the lower link;
• the quadrilateral linkage is also moved together with the sliding members so as to make the seat move to a lowered position;
• the seat is further moved together with the front wheel sets by the quadrilateral linkage to be folded into a flat form.