A stroller assembly may include a stroller frame, a plurality of wheels, and a support. The stroller frame may include a front horizontal bar and a rear horizontal bar. The stroller frame may be configured to operate between an open position and a collapsed position. The plurality of wheels may be connected to the stroller frame. The plurality of wheels may include one or more front wheels and one or more rear wheels. The support may be connected to the stroller frame. The support may include a first arm, a second arm, and a support wheel. The support and the one or more rear wheels may be configured to support the stroller assembly in a substantially vertical position when the stroller frame is in the collapsed position.

A folding cart includes a frame including front and rear plates having two inner extensions with a fastening hole, and four corner plates having a first pivot hole, a first hole, and an oval second hole; two rear wheels; four legs having a second pivot hole, a first hole member, and a second hole member; and four folding devices each including a trigger including two bent wings having a first through hole, and a top projection having a second through hole; a first pivot driven through the first pivot hole, the second pivot hole, and the fastening hole; a second pivot driven through the second hole member and the first through holes; a spring loaded pin driven through the first hole member and the second through hole; and a clip ring partially disposed in the groove and urging against the projection.

A trailer assembly is provided for a wagon. The trailer assembly has a trailer frame comprising a first frame pivotally connected to the wagon, a second frame pivotally connected to the wagon, and a first link pivotally connecting the first frame to the second frame. The trailer frame is positionable between a first or use position and a second or folded position, A wheel is rotatedly connected to the trailer frame to support the trailer frame in the use position.

A folding handcart includes: a main body provided with a supporter configured to extend vertically from a lower portion thereof; and a loading plate provided with at least one loading plate wheel unit, connected to the supporter of the main body through a hinge unit, folded while being rotated toward the main body by the hinge unit, and stowing an article or a folding box, wherein, when the loading plate is folded while being rotated toward the main body, a predetermined stowing space is provided between the main body and the loading plate in accordance with an area of the supporter such that the folding box is folded and stowed therein.

A folding wagon allowing a user initiate a folding action by pressing or stepping down on a lever disposed on the front end, the rear end, or both ends of the folding wagon.

The present disclosure relates to a double stroller, with a frame thereof including three side supports and two transverse supports. Each two adjacent side supports are connected to each other via one transverse support. Each transverse support includes at least one connecting rod assembly, and each connecting rod assembly includes an outer connecting rod fixedly connected with the side support on a left or right side and an inner connecting rod fixedly connected with the side support in the middle. The outer connecting rod is connected to the inner connecting rod in a horizontally rotatable manner. The outer connecting rods and inner connecting rods connected in a horizontally rotatable manner to enable the side supports on two sides to close together as the outer connecting, rods are turned transversely and folded, and thus, after being folded, the space occupied by the double stroller in the left-right direction is lessened.

A collapsible cart may include a first frame member, a second frame member, a front spacing member, a rear spacing member, and a base member. The front and rear spacing members are configured to separate the first frame member and the second frame member for a predetermined distance to create a receiving space for the cart when it is in a fully open status. The base member may have a plurality of base connecting bars and a center unit that has four opening to pivotally engage with the base connecting bars, and the center unit and the four base connecting bars are positioned on the same plane surface when the cart is in a fully open status. The user can start collapsing the cart by simply pushing down the center unit to disengage the center units with the base connecting bars.

A wheeled carrier device such as a baby stroller, golf cart, child carrier, or general carrier or cargo cart, comprising a bottom frame with at least two rear wheels and at least one front wheel, and may include a movably mounted upper carrier frame with a selectively removable, adjustable and/or reversible carrying element which may include child seating, with a unique wheel folding mechanism that interconnects all the wheels, so that simple movement of a wheel folding grasp synchronously moves all the wheels between the operative, rolling position and their stowed fold flat positions parallel with the bottom frame, with the wheel folding mechanism operable independently of collapsing movement of an optional upper carrier frame which also folds flat and parallel with the bottom frame.

A collapsible cart may include a first frame member, a second frame member, a front spacing member, a rear spacing member, and a base member. The front and rear spacing members are configured to separate the first frame member and the second frame member for a predetermined distance to create a receiving space for the cart when it is in a fully open status. The base member may have a plurality of base connecting bars and a center unit that has four opening to pivotally engage with the base connecting bars, and the center unit and the four base connecting bars are positioned on the same plane surface when the cart is in a fully open status. The user can start collapsing the cart by simply pushing down the center unit to disengage the center units with the base connecting bars.

A folding cart includes a frame body and a handle mechanism. The frame body comprises a chassis, four lower hinged seats at four corners of the chassis, a front folding mechanism in front of the chassis, a rear folding mechanism behind the chassis and two side folding mechanisms on the side of the chassis. A bottom portion of the lower hinged seats is provided with wheels. The chassis is an X-shaped cross-hinged structure and has four end portions respectively hinged to the lower hinged seats. The side folding mechanism has at least one X-shaped cross-hinged rod assembly with upper ends hinged to the upper hinged seats and lower ends hinged to the lower hinged seats. The front folding mechanism and the rear folding mechanism respectively have at least one X-shaped cross-hinged rod assembly having two hinged cross rods.