A multi-leg independent mobile carrier device, comprising: a base (1), a traveling mechanism (2), and a posture adjustment mechanism (3). The base (1) is used for carrying a human being or an object. The traveling mechanism (2) comprises a driving unit (21) connected to the base (1) and a connecting rod unit (22) rotatably connected to the driving unit. The traveling mechanism (2) is used for driving the base (1) to travel and get over any obstacles. The posture adjustment mechanism (3) is connected to the base (1) and used for keeping the human being or object balanced. The multi-leg independent mobile carrier device integrates a traveling mechanism and a posture adjustment mechanism. The posture adjustment mechanism is used for keeping the base balanced all the time and the traveling mechanism is used for driving the entire device to travel and turn around more flexibly. Therefore, the technical problem of a carrier device being unable to satisfy requirements of good obstacle performance, comfortable riding experience, and flexible traveling is effectively solved. The obstacle crossing ability of the multi-leg independent mobile carrier device is enhanced, and user experience is improved.

Device for manually lifting a load such as a cart, suitcase and the like, making it easier to ascend and descend staircases and various obstacles. The device has a first part comprising a frame secured to wheels, and handles being fixed to the frame. A second part comprises a load support secured to the wheels and a load being mounted in a fixed manner on the load support, the second part being able to slide with respect to the first part by the action of a telescopic lever arm in order to ascend a step of a staircase in two phases, the telescopic lever arm being fixed to the handles by a first articulation, a second articulation connecting the telescopic lever arm to a transmission which is in turn connected by a third articulation to the load support of the second part.

A multi-leg independent mobile carrier device, comprising: a base (1), a traveling mechanism (2), and a posture adjustment mechanism (3). The base (1) is used for carrying a human being or an object. The traveling mechanism (2) comprises a driving unit (21) connected to the base (1) and a connecting rod unit (22) rotatably connected to the driving unit. The traveling mechanism (2) is used for driving the base (1) to travel and get over any obstacles. The posture adjustment mechanism (3) is connected to the base (1) and used for keeping the human being or object balanced. The multi-leg independent mobile carrier device integrates a traveling mechanism and a posture adjustment mechanism. The posture adjustment mechanism is used for keeping the base balanced all the time and the traveling mechanism is used for driving the entire device to travel and turn around more flexibly. Therefore, the technical problem of a carrier device being unable to satisfy requirements of good obstacle performance, comfortable riding experience, and flexible traveling is effectively solved. The obstacle crossing ability of the multi-leg independent mobile carrier device is enhanced, and user experience is improved.

Device for manually lifting a load with a lever for a cart, suitcase and the like, making it easier to ascend and descend staircases and various obstacles, said device comprising two parts:a first part comprising: a frame (1) secured to wheels (2), the wheels (2) and the handles (3) being fixed to the frame (1),a second part comprising: a load support (4) secured to wheels (5), the wheels (5) and a load (12) being mounted in a fixed manner on the load support (4), the second part being able to slide with respect to the first part by the action of a telescopic lever arm (10) in order to ascend a step of a staircase in two phases, the telescopic lever arm (10) being fixed to the handles (3) by an articulation (9), a second articulation (8) connecting the telescopic lever arm (10) to a transmission (6) which is in turn connected by a third articulation (7) to the load support (4) of the second part.

A control method for a stair climber having a support frame; a motorized mechanical group; a stabilizing element; a sensor detecting steps during the descent process; and a processing and control logic unit connected to the sensor, the stabilizing element, and the mechanical group. The control method includes a descent process, in which the logic unit commands the mechanical group to advance the climber until the sensor detects a first step; the logic unit stops the mechanical group interrupting the advancement of the climber; the logic unit commands the extraction of the stabilizing element to arrange it in an operating configuration; the logic unit commands the mechanical group so that the climber advances until the sensor detects a second step; the logic unit commands the retraction of the stabilizing element to arrange it in a rest configuration; and the logic unit commands the group so that the climber advances again.

A method of operating a payload-carrying vehicle having two laterally disposed wheels positioned along a central axis is described. The method includes measuring a force applied by a user to the hand truck, where the measured force comprising a direction and a magnitude, and providing torque to each wheel to cause each wheel to rotate in a respective direction as a function of the measured magnitude and direction. The amount of torque provided to each wheel in response to the force from the user is such that the magnitude of measured force applied by the user is not greater than a predetermined threshold value.

A wheel-alternate stair climbing cart at least has one row of wheels (preferably two or more rows of wheels). Each row comprises a plurality of wheels. Two adjacent groups of wheels are intersected. The total length formed by connecting axle centers of a plurality of wheels can at least cross a vertex of three steps. The wheels on the stair at least keep contact with a vertex of two steps. The present invention better solves the problem that a traditional cart is blocked when operating on the stair or is bumpy when moving, and has the advantages of strong weight loading capability, difficult wear and low manufacturing cost.

Device for manually lifting a load with a lever for a cart, suitcase and the like, making it easier to ascend and descend staircases and various obstacles, said device comprising two parts:a first part comprising: a frame (1) secured to wheels (2), the wheels (2) and the handles (3) being fixed to the frame (1),a second part comprising: a load support (4) secured to wheels (5), the wheels (5) and a load (12) being mounted in a fixed manner on the load support (4), the second part being able to slide with respect to the first part by the action of a telescopic lever arm (10) in order to ascend a step of a staircase in two phases, the telescopic lever arm (10) being fixed to the handles (3) by an articulation (9), a second articulation (8) connecting the telescopic lever arm (10) to a transmission (6) which is in turn connected by a third articulation (7) to the load support (4) of the second part.

A self-propelled goods stair climber includes: first and second motorized tracks and an elongated configuration parallel to a straight forward travel direction; a loading surface implemented to tilt with respect to the tracks around a first transverse axis perpendicular to the tracks; an actuated stabilization member movable between an extracted position so that the weight of the stair climber is carried at least in part by the stabilization member and a retracted position in which the stabilization member is not loaded; a proximity or support sensor carried by the stabilization member to send a signal of approach or contact with a floor; an electronic control unit programmed to activate the first and second tracks on the basis of said signal when the stabilization member is extracted; and check an inclination of the loading surface to be maintained in a predefined angular range with respect to a horizontal direction.