A foldable baby stroller movable between unfolded and folded states. The stroller includes a frame, a front wheel assembly on a front portion of the frame including a front wheel, a rear wheel assembly on a rear portion of the frame including two rear wheels, and a seat assembly on an upper portion of the frame. The frame includes a head tube; at least one beam having a first end pivotally connected to the head tube; at least one joint, to which a second end of the beam is pivotally connected; and at least two rear fork rods having a first end pivotally connected to the joint and a second end connected to the rear wheel assembly. Parts of the foldable baby stroller do not need to be detached during folding, thereby implementing “one-click” folding, and making the operation more convenient and efficient.

A scooter includes a frame which has a footboard and supports a rear wheel, a steering column provided with a front wheel pivotably mounted on the frame, and a motor provided with a drive shaft coupled to the rear wheel via a transmission system. The transmission system includes a rear transverse shaft having a first end portion and a second end portion rotatably coupled to the rear wheel; —a gear system having a sprocket coupled rotatably to the first end portion and in meshing engagement with a toothed gear rotatably coupled to the drive shaft; and—a rear structure attached to the frame, supporting the gear system and the rear transverse shaft, and extending laterally along one side only—right or left—of the rear wheel, such that the second end portion extends from the rear structure to support the rear wheel in a cantilevered fashion.

A pedal driven cycle comprising a cantilevered frame member coupled to a power input sprocket and a driven sprocket; a belt drive connecting the power input sprocket to the driven sprocket; and a side mounted rear wheel releasably coupled to a multi-speed gear hub that is coaxial with the side mounted rear wheel, wherein the multi-speed gear hub is coupled to the driven sprocket.

A transformable bicycle or tricycle is presently provided. The transformable bicycle has a first seat and a second seat disposed rearward or forward of the first seat. At least one of the first seat and the second seat is transformable and has a planar seat and a planar back. The transformable seat is configured and disposed to transform into an enclosure or into a flat planar bench having the planar seat and the planar back substantially in the same plane.

A folding device for folding or disassembling rigid objects is provided with engaged toothed rows on opposing surfaces of two connecting plates. Opposite surfaces of protruded teeth of the toothed rows are provided with toothed grooves meshing with each other. When a locking mechanism perpendicular to a direction of the toothed rows is locked, the two connecting plates are driven by the locking mechanism to move toward each other in opposite directions along a pulling rod, so that the toothed grooves on the toothed rows tightly engage with one another, and the two connecting plates are pressed tightly and fixedly connected. When the folding device is in a connected state, meshing surfaces of the two connecting plates tightly mesh with each other through the corresponding toothed grooves, so that the two connected parts are combined together to form a whole rigid combination.

A foldable structure includes: a first folding seat; a second folding seat rotatably connected with the first folding seat and including a position limiting boss; and a locking assembly including a locking buckle and an unlocking part connected with each other, which are rotatably connected with the first folding seat, respectively. When the foldable structure is in an unlocked state, and the first folding seat rotates around the second folding seat in a first direction, the locking buckle moves along with the first folding seat to be engaged with the second folding seat and the unlocking part moves to abut against the position limiting boss, so that the foldable structure is switched to a pre-locked state where the position limiting boss prevents the unlocking part from rotating around the first folding seat to unlock the locking buckle.

A folding structure of a personal mobility device includes a front foot plate having an internal space and a hinge shaft at an upper end of a rear end. A rear foot plate includes a hinge shaft overlapping the front foot plate hinge shaft, at an upper end of a front end, being folded over the front foot plate or unfolded there-behind by rotating about the hinge shafts, and extending in a front foot plate extension plane when rotating to be unfolded. Apertures are formed at a rear end portion of the front foot plate. Insert protrusions protrude from a front end portion of the rear foot plate and are inserted into the internal space through the apertures when the rear foot plate is rotated to be unfolded. Locking members are disposed in the internal space, fix the insert protrusions by locking thereto, or release the fixed insert protrusions.

A sensing-enabled automatically foldable scooter frame includes a support frame, a seat, an electric pushrod, a sensor, a controller, and an operating member. The electric pushrod is provided at the support frame to drive folding and unfolding of the support frame. The sensor is provided at a surface of the seat. The controller receives a signal from the sensor to control extension or retraction of the electric pushrod. The operating member is electrically connected to the controller. The operating member is disabled when the sensor detects existence of pressure, and the controller controls the electric pushrod in a retracted state, thereby ensuring the support frame in an unfolded state. The operating member is enabled when no pressure is detected, and the controller drives folding or unfolding of the support frame. The present invention can prevent a scooter frame from being folded accidentally, thereby protecting a user from being hurt.