A platform to be used to secure objects for delivery by air. As a platform is lowered toward the ground, the legs of the platform touch the ground and interact with each other to stabilize the platform. A stable platform does not tip over. The platform may stabilize itself even when lowered onto uneven terrain. As the platform is lowered, the legs, except the last leg, move upward or inside the body of the platform until the last leg touches the terrain. On uneven terrain, the legs of the platform move upward or inside different amounts, so the legs have different lengths. The last leg to touch locks the other legs so that they cannot move up or down thereby stabilizing the platform. An incompressible material is used to detect when the last leg touches the terrain and to lock the other legs.

A hinge includes a bearing plate, a linkage mechanism, a shell element, and an elastic element. The linkage mechanism is linked to the bearing plate. The shell element is disposed on the support, is connected to the linkage mechanism and includes a receiving space. The elastic element is disposed in the receiving space and abuts against between the linkage mechanism and the shell element to provide an elastic force. When an external force is applied, the display device and the bearing plate rotate relative to the support between a first position and a second position. The bearing plate is linked to the linkage mechanism to compress or loosen the elastic element, and then the elastic force is changed. When the external force is removed, the display device and the bearing plate can be stopped at once at any position between the first position and the second position.

A display stand holder with slide rail structure includes a stand body, a pivot member, a display assembly module, and one or more constant-force springs. The stand body has a top end. The pivot member has a first end and a second end. The first end is provided with a pivot portion. The pivot portion is pivotally connected to the top end of the stand body, and the second end is away from the top end with respect to the first end. The display assembly module is disposed at the second end of the pivot member. The display module includes a slide rail assembly. The slide rail assembly includes a guide member and a slide member, and the slide member is slidably assembled on the guide member. The constant-force spring is connected between the guide member and the slide member.

A method of presenting visual information to a user includes detecting a position of a display relative to a surrounding environment, detecting movement of the display relative to the surrounding environment in real time, and updating a present of visual information on the display relative to a virtual reference frame updated in real time based upon the movement of the display relative to the surrounding environment.

The embodiment of the present application provides a balance mechanism and a mounting bracket. Wherein, the balance mechanism includes: a mounting part; a sliding part, which is slidably connected to the mounting part; a spring, the first end of the spring is fixed to the sliding part; an adjuster, which has a third end and a fourth end opposite to the third end, wherein the third end is connected to the mounting part, and the fourth end is connected to the second end of the spring. The adjuster is configured to to adjust the spring, so as to stretch and compress the spring. The embodiments of the present application can reduce the cost of the balance mechanism and thereby reduce the cost of the mounting bracket.

A supporting device is provided and includes: a base; an upright column disposed on the base; a lifting module disposed on the upright column; a constant force arm unit including: a first rotating member rotatably disposed on the upright column and defining a constant first effective force arm; and a first wire wound on the first rotating member; a variable force arm unit including: a second rotating member linked with the first rotating member and defining a variable second effective force arm; and a second wire wound on the second rotating member; and an elastic force module connected to the first wire; where the torques respectively generated in the first wire and the second wire are balanced with each other.

A floating mechanism (300) and an ultrasonic diagnostic apparatus. The floating mechanism (300) and the ultrasonic diagnostic apparatus can implement the direct superposition of lifting movements and rotational movements, so that the floating mechanism (300) can move in more directions. In addition, a lifting structure and a rotation structure in the floating mechanism (300) are integrally linked in design, accordingly, the link performance is good, the response is fast, the occupied space is small, and the operation range is great.

This disclosure is directed to a mount assembly for a rearview assembly, which may comprise a member, a pivot, a cup, and/or a spring. The member may have a cavity with a tapered opening. The pivot may comprise a ball and be configured to support the rearview assembly. The cup may have an end portion, a wall portion, and a cavity. The cavity may be defined, at least in part, by the end and wall portions. Further, the cup may be disposed within the member and the ball portion may be disposed, at least in part, within the cavity of the cup. The spring may be disposed within the member and exert a force on the end portion of the cup. The force exerted onto the cup may be operable to jam the wall portion into the taper, causing the cup's wall portion to deflect and grip the ball portion.

A monitor support assembly includes a base designed to rest on an ambient floor surface. An upright frame structure is spaced forward to the rear of the base and extends vertically upward from the base. The frame structure includes first and second vertical members and a top frame member that extends horizontally between the vertical members, A shroud assembly is mounted to the upright frame structure and includes a first central wall member and first and second additional wall members extending from the first and second lateral edges in the same direction. The first central wall member and the additional wall members form a receiving space. A mounting plate mountable to the rear surface of a displays screen is releasably supported by the upright frame structure within the receiving space. A depth dimension of the receiving space is sufficient to accommodate a display screen mounted via the mounting plate.

Described are display riser, height adjustable stand (HAS) and a method to support lift and tilt of multiple weight classes of displays. A lift includes a primary spring and one or more boost springs. The primary spring is used for all displays supported by the HAS and the one or more boost springs are engaged when supporting displays requiring additional lift support. A pivot assembly includes a primary torsion spring and one or more boost torsion springs. The primary spring torsion is used for all displays supported by the HAS and the one or more boost torsion springs are engaged when supporting displays requiring additional tilt support.