Disclosed is a folding car for children. The folding car comprises a rear frame, rear frame is connected with a seat; a front frame connected to the rear frame in a back-and-forth movable manner; a front lateral rod, a front portion of which is rotatably connected with the front frame; a rear lateral rod rotatably connected to the front lateral rod and the rear frame; a pedal rod rotatably connected to the front frame; and a connecting rod connected with the rear frame in a back-and-forth movable manner, and a front portion of the connecting rod being connected with the pedal rods in a slidable and rotatable manner. The folding car for children realizes the folding of a seat-type scooter for children, has a simple and new overall structure, is convenient to fold and has a small volume after being folded.

The present application relates to the field of bicycle manufacturing technology, and in particular to a bicycle and a crank assembly thereof, comprising a first handle and a second handle, wherein one of the handles is connected to a transmission shaft and the other of the handles is connected to a pedal, the first handle and the second handle are rotatably connected, and the axis of rotation coincides with the extending direction of the crank; and further comprising a locking mechanism, wherein the first handle is rotatable with respect to the second handle when the locking mechanism is in the first state, and the locking mechanism limits the relative rotation of the first handle and the second handle when the locking mechanism is in the second state.

Disclosed herein is a folding bicycle comprising a handlepost joint and two joints in the mainbeam forward of the seat tube, wherein the pins of the hinges in the two mainbeam joints (i) are located on opposite sides of the mainbeam when viewed in a top view, and (ii) when the bicycle in folded, place the front wheel parallel to rear wheel and the wheel axles inline on the same lateral axis or on parallel lateral axes, wherein the wheels roll in parallel track.

An auto-balancing transportation device having first and second wheels that are independently drivable. The device includes foot platforms, a control circuit and sensors. Device control is preferably achieved through the position or weight distribution of a rider's feet. The wheels may be arranged in parallel or non-parallel and the foot platforms may be located on the interior are exterior side of the wheels. The wheels may be coupled to one another in a manner that affords tilting, thereby increasing stability when executing a turn, among other benefits. Various embodiments and features are disclosed.

A folding vehicle has a frame body which has a front split ring (1) and a rear split ring (2) connected by a folding mechanism (3), and the front split ring (1) and the rear split ring (2) form a closed loop body after folding, thereby reducing the space occupied by the folding vehicle, and at the same time reducing the material consumption, significantly reducing the vehicle weight, and improving the portability.

A method for automatic retraction of a pedal of a bicycle. A first electric actuator is provided on a crank, and the pedal is driven to be retracted by the first electric actuator to complete a first retraction, so that long side of the pedal is changed into a front-rear direction from a left-right direction; a second electric actuator mounted on a bicycle frame drives the crank to idle, and the pedal is gradually straightened in the first retraction process to be parallel with the plane of the bicycle frame to complete a second retraction of the pedal. Using this method, the pedal can be conveniently retracted, and the transverse (left-right) occupying space is minimized, thereby facilitating the automatic storage and saving the storage space.

A folding frame and a folding vehicle are provided. The folding frame includes a cross beam, a pillar, and a supporting column; the cross beam includes a front beam and a rear beam. A rear-end bottom of the front beam is rotationally connected to a front-end bottom of the rear beam so that the two can be vertically folded. An angle between a rotational axis of the front beam and a central axis of the rear beam is an acute angle. The supporting column includes a front column and a rear column, the front column is inserted in the front beam to cooperate, the front column is rotationally connected to the rear column, and the rear column is rotationally connected to the pillar. The front beam and the rear beam are vertically folded, and then they will not spontaneously rotate to fold in the riding process, possessing relatively good reliability.

The present invention relates to a telescoping and foldable electric vehicle, belonging to the field of traffic tools, comprising a front frame (1), a rear frame (2), a power supply and a controller, and also comprising a foldable pedal (3) and a locking assembly (4) for locking the front frame (1) and the rear frame (2), wherein the front frame (1) and the rear frame (2) are in a sliding connection, the front frame (1) is equipped with a front seat (1-1), and the rear frame (2) is equipped with a rear seat (2-1); the front frame (1) is equipped with a front fork (1-2); the front fork (1-2) is equipped with a front wheel (1-3); the rear frame (2) is equipped with a rear bridge (2-1); the rear bridge (2-1) is equipped with rear wheels (2-2); the rear bridge (2-1) is provided with a driving motor (2-3); and the foldable pedal (3) is arranged between the front frame (1) and the rear frame (2). The present invention can reduce the size of the vehicle body, realizes two forms on one vehicle, and can conveniently enter into elevators and houses. The telescoping and foldable electric vehicle of the present invention is purely operated with electricity, has a simple structure, and is conveniently controlled.

A folding frame and a folding vehicle are provided. The folding frame includes a cross beam, a pillar, and a supporting column; the cross beam includes a front beam and a rear beam. A rear-end bottom of the front beam is rotationally connected to a front-end bottom of the rear beam so that the two can be vertically folded. An angle between a rotational axis of the front beam and a central axis of the rear beam is an acute angle. The supporting column includes a front column and a rear column, the front column is inserted in the front beam to cooperate, the front column is rotationally connected to the rear column, and the rear column is rotationally connected to the pillar. The front beam and the rear beam are vertically folded, and then they will not spontaneously rotate to fold in the riding process, possessing relatively good reliability.

An elliptical bicycle comprises a structural frame including two stringers in opposing arcs, one upper and the other lower, a front wheel and a rear wheel driven by a crankset from its support platforms, as well as a steering box formed by fork, steering tube and handlebar. The elliptical bicycle has multiple hinges. The structural frame is provided with a set of main hinges, each applied to a bipartite stringer having an articulation at an approximate angle of up to 170. A secondary hinge is applied in a bipartite steering tube of the handlebar having an articulation at an approximate angle of up to 180. A set of tertiary hinges is applied between a crankset and support platforms of the user's feet, each of them having an articulation at an approximate angle of up to 90 upwards.