A compact collapsible stroller in accordance with the present disclosure includes a mobile cart and a seat coupled to the mobile cart. The mobile cart includes a rolling base and a foldable frame that fold inwardly and outwardly from the rolling base.

Disclosed are a child seat frame and a compact foldable stroller. The child seat frame comprises a seat mounting part, a lower frame body, and an upper frame body. The upper frame body is provided with an upper frame body lock which can be actuated to lock and disengage from a second latch part, and the upper frame body is pivotable relative to a lower seat frame hub when the upper frame body lock is disengaged from the lower seat frame hub; and when the lower frame body pivots relative to the seat mounting part, the upper frame body lock locks over the second latch part. The child seat frame can be folded in a main suitable for the folding boundary dimensions of a main stroller frame, thereby maintaining the folding dimensions of a stroller unit to a minimum.

The stroller can folded into a more compact space. The stroller can include a pair of handle frames that include an upper handle frame, a lower handle frame, and a handle frame folding mechanism. The stroller can also include at least one rear wheel frame, at least one front wheel frame, a first frame folding mechanism rotatably connecting the front wheel frame, the rear wheel frame and one of the lower handle frames, and a second frame folding mechanism rotatably connecting the front wheel frame, the rear wheel frame, and the other of the lower handle frames. A seat can be attached to the stroller frame in a forward or rearward facing configuration. The stroller can be compactly folded with the seat still attached to the stroller frame in both the forward and rearward facing configurations.

A stroller which may be folded or collapsed for storage purposes and a hinge for facilitating the stroller folding. The hinge includes a housing, a first pivoting hinge member that is pivotally connected to the housing, and a second pivoting hinge member that is pivotally connected to the housing. The first pivoting hinge member may be connected to the second pivoting hinge member, such as by a linking member, so that the pivoting hinge members rotate in opposite directions. The hinge may also include a slide member having a pin that may move between a locked position and an unlocked position. In the locked position, the slide member engages protrusions on one or both of the pivoting hinge members in order to hold the hinge in an operational position.

A locking mechanism for opening and folding a baby stroller and a locking method therefor are revealed. The baby stroller includes an outer tube of a handle, a front wheel frame, and a rear wheel frame, each of which is arranged with a pivot member for connection. An inner tube is mounted and moveable in the outer tube and a push button for folding is arranged therebetween. A locking hook and a locking rod are pivotally connected to the pivot member of the outer tube and the pivot member of the rear wheel frame respectively. The handle, the front and the rear wheel frames are extended and fixed by the locking hook hooked onto the locking rod. While operating the push button for retracting the inner tube into the outer tube, the locking hook is released from the locking rod so that the baby stroller is folded.

A collapsible stroller includes a stroller frame, at least one hinge mechanism, a wheel, and a swivel mechanism. The stroller frame is moveable between a deployed position and a collapsed position. The hinge mechanism allows for movement of the stroller frame between the collapsed position and the deployed position. The swivel mechanism connects the wheel to the stroller frame. The swivel mechanism includes a vertical axle, a cam follower, and a cam. The vertical axle connects with the wheel and is rotatable with respect to the stroller frame about a vertical axis. The cam follower is fixed to the vertical axle. The cam includes a sloped cam surface at least partially surrounding the vertical axle. The sloped cam surface contacts the cam follower to move the cam follower along the sloped cam surface, which results in rotation of the vertical axle about the vertical axis.

A baby stroller is provided and includes a stroller frame and a child carrier. The stroller frame includes two supports, a first fixing component, a second fixing component and a locking component. The first fixing component and the second fixing component are fixed on one and the other one of the two supports, respectively, and pivotally connected to each other. The locking component is movably disposed on the first fixing component and configured to engage with the second fixing component for restraining a folding action of the stroller frame. The child carrier is disposed on the stroller frame and pivotable relative to the stroller frame. The child carrier is for providing a releasing force to the locking component for disengaging the locking component from the second fixing component to allow the folding action of the stroller frame during a pivotal movement of the child carrier relative to the stroller frame.

A foldable infant walker includes a base, a front support, a rear support and a walker chair. Respective bottom ends of the front support and the rear support are disposed relative to the base and rotatably connected to the base. A front end of the walker chair is detachably connected to an upper end of the front support. Because the front support and the rear support can be turned relative to the base and then folded, the folded infant walker whose whole volume is largely reduced can be easy to carry, store and manage. The folding operation is also simple and convenient.

A collapsible stroller includes a stroller frame, at least one hinge mechanism, a wheel, and a swivel mechanism. The stroller frame is moveable between a deployed position and a collapsed position. The hinge mechanism allows for movement of the stroller frame between the collapsed position and the deployed position. The swivel mechanism connects the wheel to the stroller frame. The swivel mechanism includes a vertical axle, a cam follower, and a cam. The vertical axle connects with the wheel and is rotatable with respect to the stroller frame about a vertical axis. The cam follower is fixed to the vertical axle. The cam includes a sloped cam surface at least partially surrounding the vertical axle. The sloped cam surface contacts the cam follower to move the cam follower along the sloped cam surface, which results in rotation of the vertical axle about the vertical axis.

A collapsible stroller includes a stroller frame, at least one hinge mechanism, a wheel, and a swivel mechanism. The stroller frame is moveable between a deployed position and a collapsed position. The hinge mechanism allows for movement of the stroller frame between the collapsed position and the deployed position. The swivel mechanism connects the wheel to the stroller frame. The swivel mechanism includes a vertical axle, a cam follower, and a cam. The vertical axle connects with the wheel and is rotatable with respect to the stroller frame about a vertical axis. The cam follower is fixed to the vertical axle. The cam includes a sloped cam surface at least partially surrounding the vertical axle. The sloped cam surface contacts the cam follower to move the cam follower along the sloped cam surface, which results in rotation of the vertical axle about the vertical axis.