US Patent 11706893 Rotating assembly, handle locking devices, and chassis

A rotating assembly includes a first handle; the first handle includes a connecting part. The connecting part has first and second extensions and the connecting part is rotatably connected to a box holding one or more devices. The first and second extensions are arranged on opposite sides of the connecting part, the first extension can rotate with the connecting part until it rests on a base, on which base the box is rotatably arranged. The first extension and the second extension extend to both sides of the connecting part to lessen the force required for driving the box to rotate.