A boarding bridge walking mechanism with a safety protection apparatus, the safety protection apparatus includes an inner retainer mechanism, an outer retainer mechanism, a connecting mechanism and an induction and control mechanism. The inner retainer mechanism includes an inner bracket and a first universal wheel. The outer retainer mechanism includes an outer bracket. The outer bracket is disposed on the outer circumference of the inner bracket, and a lower end of the outer bracket is lower than a lower end of the inner bracket. The connecting mechanism includes a first connecting component. The first connecting component is connected between the inner bracket and the outer bracket, such that the inner bracket is hinged with the outer bracket. The induction and control mechanism includes an induction unit.

A boarding bridge walking mechanism with a safety protection apparatus, the safety protection apparatus includes an inner retainer mechanism, an outer retainer mechanism, a connecting mechanism and an induction and control mechanism. The inner retainer mechanism includes an inner bracket and a first universal wheel. The outer retainer mechanism includes an outer bracket. The outer bracket is disposed on the outer circumference of the inner bracket, and a lower end of the outer bracket is lower than a lower end of the inner bracket. The connecting mechanism includes a first connecting component. The first connecting component is connected between the inner bracket and the outer bracket, such that the inner bracket is hinged with the outer bracket. The induction and control mechanism includes an induction unit.

A deployable bridge carried on or by a vehicle, the bridge being movable from a stowed position to a deployed position, in which a bridge launch mechanism is provided and has only a single actuator.

A deployable bridge carried on or by a vehicle, the bridge being movable from a stowed position to a deployed position, in which a bridge launch mechanism is provided and has only a single actuator.

A giant gully-crossing vehicle for polar scientific expeditions, including a gully-crossing bridge and a vehicle body. The vehicle body includes a stage and a travelling portion. The stage includes a top platform, a front bottom plate, a rear bottom plate and a multifunctional lock platform assembly. The front bottom plate and the rear bottom plate are capable of sliding independently relative to the top platform. The travelling portion includes a first travelling component, a second travelling component, a third travelling component, a fourth travelling component, a fifth travelling component and a sixth travelling component which are symmetrically provided at left and right sides of the stage and below the stage. Bridge bodies of the bridge components can be assembled to two gully-crossing bridges, and are connected to the multifunctional lock platform assembly when crossing gullies.

A giant gully-crossing vehicle for polar scientific expeditions, including a gully-crossing bridge and a vehicle body. The vehicle body includes a stage and a travelling portion. The stage includes a top platform, a front bottom plate, a rear bottom plate and a multifunctional lock platform assembly. The front bottom plate and the rear bottom plate are capable of sliding independently relative to the top platform. The travelling portion includes a first travelling component, a second travelling component, a third travelling component, a fourth travelling component, a fifth travelling component and a sixth travelling component which are symmetrically provided at left and right sides of the stage and below the stage. Bridge bodies of the bridge components can be assembled to two gully-crossing bridges, and are connected to the multifunctional lock platform assembly when crossing gullies.

A display device displays displacement of a bridge serving as a structure on a display part in the form of image information that is visually recognizable, based on a displacement amount of the bridge, the displacement amount having been calculated based on an output signal output from an acceleration detector serving as a physical quantity sensor provided on the bridge.

A display device displays displacement of a bridge serving as a structure on a display part in the form of image information that is visually recognizable, based on a displacement amount of the bridge, the displacement amount having been calculated based on an output signal output from an acceleration detector serving as a physical quantity sensor provided on the bridge.

A deployable bridge carried on or by a vehicle, the bridge being movable from a stowed position to a deployed position, in which a bridge launch mechanism is provided and has only a single actuator.

A deployable bridge carried on or by a vehicle, the bridge being movable from a stowed position to a deployed position, in which a bridge launch mechanism is provided and has only a single actuator.