Patent attributes
A foldable structure for baby strollers is revealed. The foldable structure includes two joints at each side thereof. A push rod, a front support with a sliding member and a rear support are pivotally connected to each joint. The sliding member is linked to the push rod and the rear support by an upper link and a lower link respectively. A quadrilateral linkage is arranged between the two front supports while a seat is pivotally connected to and located above the quadrilateral linkage. The quadrilateral linkage is linked to front wheel sets and the sliding members. Thereby the quadrilateral linkage is driven to move through the upper and the lower links and the sliding members when the joint is released from a locked state and the push rod is pushed forward. The front wheel sets are also folded. Thus the baby stroller is folded into a compact size.