A collapsible cart frame includes four vertical bars defining four corners of the cart frame, four scissor linkages extending between different pairs of the vertical bars to define four sides of the cart frame and four wheels mounted at the bottom ends of the vertical bars. The scissor linkages are configured to expand and collapse independently from one another. Each of the lower scissor ends are attached to a pair of vertical bars at a fixed height and each of the upper scissor ends are slidably attached to the pair vertical bars. Height defining elements selectively define heights of at least one of the upper scissor ends of each of the scissor linkages.

A hand truck includes a base that is able to roll along the ground underlying the base and a push handle coupled to the base. A pivotable toe plate is coupled to a lower end of the base.

A stroller includes a front leg, a rear leg, a handle assembly, a locking component and a linking component. The rear leg is rotatably connected to the front leg. The handle assembly is rotatably connected to the front leg. The locking component is movably disposed on the handle assembly. The locking component is configured to engage with the front leg for restraining a rotating movement of the handle assembly relative to the front leg and further to be driven to disengage from the front leg for allowing the rotating movement of the handle assembly relative to the front leg. The linking component is rotatably connected to the handle assembly and the rear leg. The handle assembly drives the rear leg to rotate relative to the front leg forwardly when the handle assembly rotates relative to the front leg forwardly. Therefore, the stroller can be folded easily and compactly.

A frame structure and a baby stroller are provided. The frame structure includes a hand-gripping part; a front leg pivotally connected with the hand-gripping part; a rear leg pivotally connected with the hand-gripping part; a basket tube including two side rods and a rear rod connected with the two side rods, each of the side rods including a first end and a second end, the first end being pivotally connected to the front leg, and the second end being pivotally connected to the rear leg; a fixing seat slidably disposed on the front leg for connecting the seat bracket to the front leg; a linkage rod having an end pivotally connected to the basket tube, and the other end pivotally connected to the fixing seat. The front leg includes a sliding rail along its longitudinal direction, and the fixing seat includes a sliding groove matched with the sliding rail.

A child seat includes a seat portion fixedly connected with a first coupling part, a connector pivotally connected with the first coupling part of the seat portion, the connector being operable to detachably engage with a corresponding structure provided on a child supporting apparatus, a locking mechanism operable to lock and unlock the connector with respect to the seat portion, a backrest frame fixedly connected with a second coupling part that is pivotally connected with the first coupling part, and a coupling mechanism operable to movably couple the seat portion to the backrest frame so that the seat portion and the backrest frame are movable in unison relative to the connector during adjustment of the backrest frame between an unfolded state and a folded state.

The present invention discloses a folding cart, which comprises a left frame, a right frame, plurality of platforms, a left connecting rod, a right connecting rod, a guide rod, a sliding sleeve, a pressing member, a moving block and an elastic member. The sliding sleeve, disposed on the guide rod and slidable up and down relative to the guide rod, has a limiting hole opposite to the second opening of the guide rod. The pressing member has a first slope. The moving block has a second slope and a limiting protrusion. By the slope sliding between the pressing member and the moving block and the sliding of the sliding sleeve along the guide rod, the sliding is smooth, with low friction. Therefore, not too much force is required and the operation is thus easier.

A collapsible child's stroller with a handle frame (30), a front wheel frame (10) and a rear wheel frame (20), mutually connected at a hinge joint (12, 22, 42) for mutual angular displacement between folded and unfolded configurations. The hinge joint has two spaced apart, parallel hinge axes, about which the frames (10, 20, 30) mutually rotate. The stroller is further provided with a locking element (43, 44) moveable between a locked position in which the frames (10, 20, 30) are locked in the unfolded configuration, and an unlocked position allowing the frames (10, 20, 30) to rotate to the folded configuration. The locking element (43, 44) moves in a direction traverse to the parallel hinge axes to better transfer loads between the frames.

Proposed is a baby carriage having improved convenience of use, the baby carriage including a main frame, a seat frame, a storage basket, and a wheel unit, wherein the baby carriage is generally used as a single baby carriage and a seat is detachably coupled to the rear of the single baby carriage such that the single baby carriage is utilized as a twin baby carriage when a second baby is born, and wherein it is possible to carry a pet in the baby carriage irrespective of carrying a baby or an infant in the baby carriage, whereby the baby carriage is used in various forms depending on circumstances of a user or a home.

A foldable cart frame has a folding mechanism, a connecting seat, two rear legs, and a handle unit. The folding mechanism has a base seat, at least one guiding rod connected to the base seat, a sliding seat slidably disposed on the at least one guiding rod, and a linkage assembly moveably connected to the sliding seat. The connecting seat is movably disposed on the folding mechanism. The two rear legs are disposed on the base seat. The handle unit is moveably inserted through the base seat, is fixedly connected to the sliding seat, and can drive the sliding seat and the connecting seat to move. The two rear legs are driven by the linkage assembly. The foldable cart frame can be folded and expanded conveniently and quickly. The connecting seat and its connecting components can form a stable supporting structure after expanding.

A child stroller apparatus includes a standing frame, a handle frame pivotally coupled to the standing frame and having a first coupling part, a front guard having a second coupling part pivotally connected with the first coupling part, and a locking mechanism including a front guard latch. The handle frame is rotatable for folding and unfolding the child stroller apparatus. The front guard is positionable in a deployed configuration while the child stroller apparatus is in an unfolded state. The front guard latch is movable between a locking position where it is engaged with the first and second coupling parts so that the front guard is locked to the handle frame in the deployed configuration, and an unlocking position where the front guard latch is disengaged from one of the first and second coupling parts for rotation of the front guard relative to the handle frame and the standing frame.