The present invention provides a foldable baby carriage frame comprising a handle assembly, a front leg assembly, a front leg support assembly, a rear leg assembly, a rear foot connecting assembly, a horizontal support rod and a torsion spring. The torsion spring is provided at the connection between the front leg support assembly and the rear leg connection assembly, and the torsion spring controls the opening and closing of the front leg support assembly and the rear leg connection assembly by the rotation. When downward force is applied to the rear leg assembly, the rear leg assembly pivots downward with the torsion spring as the pivot point, so that the front leg support assembly and the rear leg connecting assembly realizes the effect of automatic folding. After the downward force is released, the front leg support assembly and the rear leg connecting assembly return to the state when the baby carriage is in use.

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.

Foldable strollers and related methods are disclosed herein. An example frame for use with a stroller includes a first leg, a second leg, 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 second joint includes a first portion having a pocket and a second portion including a lock slidably disposed in the second portion. The lock is to be removably coupled to the pocket. The handle arm is to rotate relative to the first leg via the second joint when the lock is removed from the pocket. The rotation of the handle via the second joint is to enable the second leg to rotate relative to the first leg via the first joint to fold the frame.

Embodiments include, but are not limited to, a stroller with a collapsible frame where an upper end of the side armrest rotatably connected to a slider, the lower end of the side armrest rotatably connected to an upper end of the rear leg set, a middle portion of the rear leg set rotatably connected to a lower end of the handlebar set, the upper end of the rear leg set and the lower end of the side armrest rotatably connected to the upper end of the front leg set, the middle portion of the front leg set rotatably connected to the front end of the seat set, the rear end of the seat set rotatably connected to the lower end of the handlebar set, and the slider capable of sliding along the length of the handlebar set, wheel assemblies, and a locking mechanism, between the handlebar set and the slider.

A cart including a body that has a frame and a caster, and the frame including first and second bars. The cart further includes a basket, first and second couplers attached to the basket such that the first and second couplers removably couple in a snug fit with either the first and second bars respectively, or the second and first bars respectively. The cart further includes first and second latches attached to the basket such that the first and second latches are constructed to reversibly secure the first and second couplers respectively to either the first bar and the second bar, or the second bar and the first bar, and a latch-connecting means having a first end attached to the first latch and a second end attached to the second latch such that the latch-connecting means permits the second latch to be controlled by the first latch.

A cart including a body that has a frame and a caster, and the frame including first and second bars. The cart further includes a basket, first and second couplers attached to the basket such that the first and second couplers removably couple in a snug fit with either the first and second bars respectively, or the second and first bars respectively. The cart further includes first and second latches attached to the basket such that the first and second latches are constructed to reversibly secure the first and second couplers respectively to either the first bar and the second bar, or the second bar and the first bar, and a latch-connecting means having a first end attached to the first latch and a second end attached to the second latch such that the latch-connecting means permits the second latch to be controlled by the first latch.

Disclosed is a stroller (1) moveable between a fully deployed state and a fully collapsed state. The stroller (1) comprises: a seat (2) comprising a seat back (5) pivotably connected to a seat base (6), and one or more stops arranged to prevent the stroller (1) from moving from its fully deployed state to its fully collapsed state, wherein the one or more stops arranged to be released to permit the stroller (1) to move from its fully deployed state to its fully collapsed state when at least one of the seat base (6) and seat back (5) is pivoted towards the other. The stroller provides improved safety.

A child stroller apparatus includes a rear and a front leg frame respectively having a first and a second side segment, a handle frame having a grip portion and a third side segment respectively connected fixedly with a first and a second joining part that are pivotally connected with each other, a latching mechanism for locking the rear and front leg frames and the handle frame in an unfolded state, and a latch carried with the third side segment. The latch can engage and disengage the first joining part to lock and unlock the grip portion relative to the third side segment. Moreover, a linking part couples the latch to the rear leg frame or the front leg frame so that a folding rotation of the handle frame relative to the rear leg frame causes the latch to disengage from the first joining part.

A child seat is detachably mounted on a foldable stroller comprising a stroller handle and front and rear leg portions. The stroller handle is foldably connected to the rear leg portion. The front leg portion is foldably connected to the rear leg portion and has a first adaptor. The child seat includes a first pivot and a seat frame having a lower seat portion and an upper seat portion foldably connected to the lower seat portion. The first pivot is pivotably connected to the lower seat portion and detachably mounted on the first adaptor. When the front leg portion and the stroller handle are folded relative to the rear leg portion, the upper seat portion is folded on the lower seat portion, and the lower seat portion is folded on the front leg portion via the first pivot together with the upper seat portion.

Trailer for stroller includes a wheel frame with a lifting seat, and a push rod capable of sliding along the movement direction of front and rear wheels, which can be folded between the wheel frame and the seat. The push rod drives the seat to rise and fall; and a locking structure used for locking the push rod to limit the slide of the push rod when the seat rises is disposed between the push rod and the wheel frame. The seat is driven to rise when the push rod slides and is pulled up, and the seat is driven to fall when the push rod slides and is retracted; and the locking structure ensures the stability of the seat.