An elevation working platform includes a lower support and an upper support. At least one group of X-type elevation mechanisms is provided between the lower support and the upper support. The elevation working platform further includes an elastic element. A first end of the elastic element is connected between two end points of a first support rod or a second support rod. A second end of the elastic element is connected to the lower support or a second hinging seat capable of sliding relative to the lower support. Using the X-type elevation mechanisms, the front and back positions of the upper support do not change in an elevating process of the upper support, the structure is simple and practical, and the cost is relatively low.

A supporting device is configured to hold and support a portable electronic device. The supporting device includes a main shaft, a plurality of swing arms, a holder, and a plurality of adjustable legs. The portable electronic device is configured to lean against the main shaft. The swing arms are pivotally coupled to two opposite ends of the main shaft and configured to rotate relatively to the main shaft. The holder is configured to receive an edge of the portable electronic device. The swing arms are slidably connected to the holder for adjusting a distance between the main shaft and the holder through the rotating of the swing arms. The adjustable legs are pivotally coupled to the two opposite ends of the main shaft. The adjustable legs are independently movable in at least two degrees of freedom.

A supporting device is configured to hold and support a portable electronic device. The supporting device includes a main shaft, a plurality of swing arms, a holder, and a plurality of adjustable legs. The portable electronic device is configured to lean against the main shaft. The swing arms are pivotally coupled to two opposite ends of the main shaft and configured to rotate relatively to the main shaft. The holder is configured to receive an edge of the portable electronic device. The swing arms are slidably connected to the holder for adjusting a distance between the main shaft and the holder through the rotating of the swing arms. The adjustable legs are pivotally coupled to the two opposite ends of the main shaft. The adjustable legs are independently movable in at least two degrees of freedom.

An elevation working platform includes a lower support and an upper support. At least one group of X-type elevation mechanisms is provided between the lower support and the upper support. The elevation working platform further includes an elastic element. A first end of the elastic element is connected between two end points of a first support rod or a second support rod. A second end of the elastic element is connected to the lower support or a second hinging seat capable of sliding relative to the lower support. Using the X-type elevation mechanisms, the front and back positions of the upper support do not change in an elevating process of the upper support, the structure is simple and practical, and the cost is relatively low.

A support apparatus includes: a first support member; a second support member rotatably connected to the first support member and capable of rotating within a first angle range starting from a position where the first support member is located; and a third support member rotatably connected to the second support member and capable of, after the second support member rotates to a maximum angle thereof, continuing to rotate in a direction in which the second support member rotates within a second angle range starting from a position where the second support member is located. The second angle range is greater than or equal to the first angle range.

A support for video playback devices includes a headwear device, a support mechanism, and a holding mechanism. The support mechanism is connected to the headwear device. The holding mechanism is connected to the support mechanism, and is used to hold a video playback device. Viewing distance and angle of the video playback device is adjusted by varying relative positions of the headwear device and the support mechanism and by varying relative positions of the support mechanism and the holding mechanism. The structure of the support for video playback devices is simple. The support for video playback devices is useful when a user lies down, thus improving the user's sense of experience.

A storage device coupleable to a structure includes a mounting plate and an external plate coupled to the mounting plate to define a receiving cavity. The storage device also includes a hinge plate received in the receiving cavity and coupled to the external plate, with the hinge plate pivotably moveable about a pivot axis between an open position and a closed position.

A system for mounting to an underside of a work surface of an office furniture structure includes a storage structure and a bracket. The storage structure includes at least one storage chamber and at least one installation feature coupled to the at least one storage chamber. The bracket includes at least one securing feature configured to secure the bracket to the underside of the work surface of the office furniture structure. The bracket further includes at least one installation feature configured to couple the least one installation features of the storage structure. At least one of the storage structure and the bracket includes at least one restraining feature configured to engage the other of the storage structure and the bracket and inhibit the storage structure from being detached from the bracket.