A cart comprises a body structure and at least one wheel connecting structure. The body structure comprises a support shaft, a first frame member and a second frame member. Both the first and second frame members are disposed on the support shaft. The wheel connecting structure is disposed on one end of the support shaft and comprises a driving assembly, a rotating assembly, a linking assembly, and an energy assembly. The driving assembly is connected to the first frame member. One end of the rotating assembly is disposed in correspondence with the one end of the support shaft, and the other end of the rotating assembly is mounted on a wheel member. The linking assembly is disposed between the driving assembly and the rotating assembly. The linking assembly comprises a pushing unit, which is pivotally connected to the rotating assembly. The energy assembly is connected to the linking assembly.

The assembled-type traveling carriage includes: the telescopic cylindrical body being an extendable telescopic cylindrical body rotatably provided with a first screw at each end thereof, and incorporating an actuator configured to extend and withdraw a nest; a joint block provided with a second screw; a traveler rotatably provided with the first screw and attached a driving device thereto; and a coupling rod rotatably provided with the first screw on each end thereof. A first planar frame body is assembled by screwing joint blocks to four of the telescopic cylindrical bodies, screwing the travelers to the joint blocks such that the travelers are positioned on extension lines of the telescopic cylindrical bodies, and coupling one ends of the four telescopic cylindrical bodies to one another by the coupling rods through the joint blocks.

A foldable wagon is provided that is configurable in a use configuration and folded configuration. The foldable wagon has a front frame assembly, a rear frame assembly, a first upper pivot bracket and a first lower pivot bracket connecting the front frame assembly to the rear frame assembly. The wagon has a timing member to maintain the front and rear frame assemblies synched during folding and unfolding of the wagon. The wagon also has a footrest with a first end connected to the rear frame assembly and a second end free from connection to the front frame assembly. When the second end of the footrest is raised the rear frame assembly and the front frame assembly pivot from the use configuration to the folded configuration. The wagon also has foldable front and rear seatbacks.

A foldable golf trolley includes a standing tube assembly movably coupled with a front wheel assembly through a front wheel connecting rod. A bottom tube assembly is connected with the front wheel assembly and the standing tube assembly. A four-rod linkage is formed by the standing tube assembly, the front wheel connecting rod, the front wheel assembly and the bottom tube assembly. The standing tube assembly is connected with the left and right wheel assemblies through a left and right wheel connecting rod assembly respectively. The left/right wheel connecting rod assembly includes a left/right wheel driving connecting rod and a left/right wheel driven connecting rod, and a left/right wheel four-rod linkage is formed by the left/right wheel driving connecting rod, the left/right wheel assembly, the left/right wheel driven connecting rod and the bottom tube assembly. The trolley could be quickly folded into a compact structure and unfolded.

A wheel reversing mechanism, a cart frame, and an apparatus are provided. The wheel reversing mechanism includes a frame, a wheel assembly and a linkage assembly provided within the frame. The linkage assembly includes a locking mechanism and an actuator cooperated with the wheel assembly. The wheel assembly includes a wheel joint and a wheel connected to the wheel joint. The wheel joint is rotatably connected to a lower end of the frame, the actuator is connected to the wheel joint. The locking mechanism is locked to the wheel joint. The linkage assembly is acted by an external force, such that the locking mechanism is unlocked from the wheel joint, and further, the actuator controls the wheel joint to rotate relative to the frame.

A child stroller apparatus includes a rear and a front leg frame respectively having a first and a second side segment, and a handle frame having a grip portion and a third side segment that are respectively connected fixedly with a first and a second joining part pivotally connected with each other, the second and third side segments being respectively connected pivotally with the first side segment. A latch is disposed between the first and second joining parts, and can lock the grip portion in an unfolded position relative to the third side segment. A cable has two opposite ends respectively anchored with the grip portion and the third side segment, wraps around a prominent portion provided on one of the first and second joining parts, and is tensioned to bias the grip portion to fold toward the third side segment.

A handle height adjusting mechanism includes an upper fixing base, a lower fixing base pivoted to the upper fixing base, and an engaging component movably disposed between the upper fixing base and the lower fixing base and for engaging with the upper fixing base and the lower fixing base. The engaging component includes a protrusion. The handle height adjusting mechanism can adjust a handle height and prevent accidental folding operation of a child carrier for enhancing safety. The present application further discloses the child carrier having the handle height adjusting mechanism.

A child stroller apparatus includes a rear and a front leg frame respectively having a first and a second side segment, and a handle frame having a grip portion and a third side segment that are respectively connected fixedly with a first and a second joining part pivotally connected with each other, the second and third side segments being respectively connected pivotally with the first side segment. A latch is disposed between the first and second joining parts, and can lock the grip portion in an unfolded position relative to the third side segment. A cable has two opposite ends respectively anchored with the grip portion and the third side segment, wraps around a prominent portion provided on one of the first and second joining parts, and is tensioned to bias the grip portion to fold toward the third side segment.

A collapsible chassis for strollers includes a base frame supporting at least one front post and at least one rear post with wheel assemblies. The base frame further supports at least one handle tube. An actuation element is supported by the base frame and is actuated by the user to move the chassis from the open condition to the closed condition. The actuation element is movable with respect to both the handle tube and the movable post and is connected by way of a first kinematic connection element to the movable post and by way of a second kinematic connection element to the handle tube. Actuating the actuation element causes the rotation of the movable post and handle tube. A third kinematic connection element is provided which includes an articulation element adapted to cause a motion of mutual approach in a transverse direction of the two rear posts.

A child stroller apparatus includes a rear leg frame having a first side segment fixedly connected with a first coupling part, a front leg frame having a second side segment fixedly connected with a second coupling part, a handle frame having a third side segment fixedly connected with a third coupling part, the second and third coupling parts being respectively connected pivotally with the first coupling part, a front guard pivotally connected with the first coupling part, a first linking assembly rotationally coupling the second side segment with the third side segment, and a second linking assembly rotationally coupling the front guard with the second side segment. The front leg frame, the handle frame and the front guard are linked and rotatable relative to the rear leg frame during folding and unfolding of the child stroller apparatus.