Strollers with removable seats and related methods are disclosed herein. An example stroller includes a wheeled frame, a receiver coupled to the frame, and a seat. The seat includes a hub, a mount, and a lock disposed in the mount. The lock is to move from a first positon to a second position when the mount is disposed in the receiver to removably couple the seat to the frame. The seat includes a handle and a pin disposed between the handle and the hub. The handle is moveable from a retracted position to an extended position when the pin is in a third position relative to the handle and the lock is to move from the second position to the first position when the handle moves from the retracted position to the extended position.

A twice-foldable stroller including a frame main body which is configured to have right and left front-angle frames to support front wheels and a horizontal frame connected at a lower part between the right and left front-angle frames, right and left rear-angle frames to support rear wheels and connecting frames connected between the right and left rear-angle frames and the right and left front-angle frames, and vertical frames connected to the right and left connecting frames; seat frames; backrest frames; support frames; extension frames; canopy frames rotatably connected to the extension frames; and handles, each connected to the extension frames, wherein right and left central portions are rotatably connected to each other.

A passenger transport carrier includes a lower frame having a first end and a second end, and an upper frame having a first channel defined therein, a first end, and a second end. The carrier also includes a rear frame extending from the second end of the lower frame to the second end of the upper frame. The carrier further includes a first upper seat support including a cross-member extending transversely across the carrier and having a first end and a second end, and a first elongate member extending from the first end of the cross-member of the first upper seat support and slidably received within the first channel of the upper frame. The first upper seat support is configured to move between a first seat position and a second seat position.

A collapsible child seat (1) is disclosed, comprising a backrest (10), a seat surface element (20) and an adapter element (30, 30) or a plurality of adapter elements (30, 30) via which the child seat (1) can be connected to a pushchair frame, and a first locking element (50) via which the seat surface element (20) can be locked in relation to the adapter element (30, 30) or adapter elements (30, 30), wherein the first locking element (50) is configured in such a way that by reducing the angle between the backrest (10) and the seat surface element (20) the locking of the seat surface element (20) in relation to the adapter element (30, 30) or adapter elements (30, 30) can be released.

A baby carriage frame has a frame body, a front-seat panel, a rear-seat panel, and two rear-seat fixing assemblies. The two seat panels are mounted on the frame body, and the rear-seat panel is front-and-rear moveable. Two clamping recesses in a bottom of the rear-seat panel are downwardly disposed around the frame body. Each rear-seat fixing assembly has a seat pivot frame and a seat clamping panel pivotally connected to each other, and the seat clamping panel has a seat eccentric part to abut tightly against a transverse side of the rear-seat panel to fix the rear-seat panel on the frame body, which is convenient and quick in use. The clamping recesses on a bottom of the rear-seat panel enable the rear-seat panel to move continuously front-and-rear along the frame body in one step, thereby adjusting the space between the two seat panels to be adapted to various situations.

Foldable strollers and related methods are disclosed herein. An example frame for use with a stroller includes a first leg having a first wheel coupled thereto, a second leg having a second wheel coupled thereto, a first joint to couple the first leg and the second leg, a handle arm, and a second joint to couple the handle arm and the first leg. The handle arm is to rotate relative to the first leg via the second joint. The rotation of the handle via the second joint is to cause the second leg to rotate relative to the first leg via the first joint to fold the frame.

A child seat includes a seat portion, a backrest frame and a front guard respectively connected pivotally with the seat portion, a latch connected with the seat portion, and a linking part respectively coupled to the latch and the backrest frame. The latch is operable to lock the front guard in position, wherein the latch is engaged with the front guard for locking the front guard and disengaged from the front guard for unlocking the front guard. The linking part is pivotally connected with the backrest frame, and the backrest frame is rotatable to cause the latch to unlock for rotation of the front guard.

A stroller includes a chassis and a child support. The chassis is configured to roll along the ground in response to being pushed by a caregiver. The child support is coupled selectively to the chassis and is configured to support a child resting therein.

A foldable convertible stroller for children, converting between stroller (concealed-stroller and open-stroller), playpen (full or partial), and folded configurations, featuring four U-shaped chassis support bars movable about joint side-hubs into a raised deployed position when fully expanded, when in a concealed-stroller or the playpen configuration, or a lowered deployed position when partially expanded, when in an open-stroller configuration, and foldable into a folded configuration by collapsing into a nested arrangement. The stroller further features a foldable base support, a circumferential main curtain spanning between the base and the upper front and rear support bars for surrounding the stroller in a playpen configuration, an optional foldable rest, and an optional handle portion of an upper rear support bar that allows selectively erecting and folding. A complementary method for converting the stroller between the configurations is also provided.

A device for transporting a child with an adjustable child seat. The device comprises a tensioning device comprising a first band which is coupled to the seat part and a pair of substantially inelastic bands which are each connected at a first end to the first band and connected at a second end to respective sides of the frame. The device also comprises an adjusting device with which the pair of inelastic bands can be fixed relative to the back part. The first band is an elastic band which, at least after termination of the fixation of the pair of inelastic bands, exerts a tensile force on the inelastic bands, whereby these bands are tightened.