A hinge synchronization module includes a base unit, and two hinge units. The two hinge units are connected to the base unit, and each of the hinge units has a gear member, a rotating platform, and a connecting member. The gear members of the hinge units mesh with each other. The rotating platform of each hinge unit has a platform body pivotable relative to the base unit. The connecting member of each hinge unit has a gear part mashing with the gear member of the hinge unit, and a slide hole. A slidable rod of the rotating platform of each hinge unit is disposed in and slidable along the slide hole of the connecting member of the hinge unit.

A protection and/or charging assembly includes a power apparatus, a protection housing, a charging apparatus and/or a locking assembly. The power apparatus provides electrical power to components of the protection and/or charging assembly. The protection housing houses one or more personal belongings and/or electronic devices. The charging apparatus receives power from the power apparatus and charges the one or more electronic devices. The locking assembly locks and/or unlocks the protection housing and allows the one or more personal belongings to be stored in an interior of the protection housing.

A breakaway hinge for a portable medical device, such as a cart-borne ultrasound system, enables the movement of an access door in other dimensions than the hinge access. The hinge includes a sliding magnet which attaches to a fixed magnet, and a hinge pin, all acting together to allow the door to open, to shift the door away from the hinge, and to detach the door as desired.

A hinge, a left rotating bracket and a right rotating bracket of the hinge are provided on a left linkage mechanism and a right linkage mechanism and are connected to a middle support frame by the linkage mechanisms. A synchronization structure is provided between the linkage mechanisms such that the rotating brackets simultaneously rotate in a reverse direction. The rotating brackets are respectively provided with sliding connection slots. The sides of the middle support frame are provided with mechanisms for providing rotational resistance. Rotating members in the mechanisms providing rotational resistance on the sides are each provided with a connection arm. The mechanisms are slidably connected to the sliding connection slots of the rotating brackets by the connection arms, respectively. The rotating brackets of the hinge are in direct sliding connection with the rotating members in the resistance mechanisms hinged to the middle support structure by guiding slots.

A door connector for a litter container includes a base portion and a hook. The base portion is configured to attach to an interior surface of a hood of the litter container. The hook is configured to attach to a cylindrical connector on the door. The base portion is configured to attach to the interior surface such that when connected the hook is at least partially hidden when viewed from an exterior of the litter container.

A displaceable rotating shaft structure and a foldable device having the rotating shaft structure are disclosed. The displaceable rotating shaft structure comprises a support, a rotating shaft, a connecting rod assembly, a guide assembly, and a torsion assembly. The support has a supporting portion. The connecting rod assembly has a first outer end that is rotatably connected to the linking section of the rotating shaft and a second outer end that is pivotally connected to the supporting portion. The guide assembly has a guide rod. The guide rod is configured to displace relative to the supporting portion. When the rotating shaft is rotated, the rotating shaft drives the connecting rod assembly to adjust the angle and the total length of a joint of connecting rods of the connecting rod assembly, a distance between the rotating shaft and the support is changed through the guide assembly.

A hinge having dual axes includes two hinge members each having a hinge leaf and one or more knuckles, a pivot pin received in a longitudinally extending bore in each knuckle, each pivot pin also received in one of two apertures in one or more connector plates that interconnect the hinge members, and one or more springs biasing the hinge members toward a closed position, so that the knuckles are rotatably disposed adjacent to each other, each hinge member independently rotatable about one of two pivot axes, and only a single seam is presented between the two knuckles as the hinge members move between open and closed configurations. In one embodiment a connector incorporating the connecting plates covers and hides the springs from view.

A system of panels is provided for use as panels for walls, doors and storage containers, where these panels can be quickly and conveniently assembled to build a variety of modular storage containers or other structures. The panels can include straight panels, L-panels, door end panels, door landing panels, and swivel hinge panels.

A hinge for rotating a first object relative to a fixed second object. The hinge has left and right upper rear brackets coupled to a lower edge of the first object at the rear of the first object. Each of the left and right upper rear brackets has a pin coupled thereto. The hinge also has left and right lower rear brackets coupled to an upper edge of the second object at the rear of the second object. An arcuate slot is defined in a portion of the left and right lower rear brackets. The slot is sized and shaped such that at least a portion of the pin can be positioned in and can slidingly move through the slot.

A foldable device may include a foldable layer and a hinge mechanism. The hinge mechanism may include a plurality of hinge segments, arranged in a plurality of rows, and with adjacent hinge segments being movably coupled so as to guide a folding and an unfolding motion of the foldable layer.