A stand having a pivoting mechanism is included in a set of electronic device. The pivoting mechanism includes a first pivoting element, a second pivoting element pivotally connected to the first pivoting element, a multi-positioning assembly connected to the first and the second pivoting element, and a restoring element having two ends that are respectively contacting the first and the second pivoting element. When the second pivoting element is, respectively, at a first and a second position, a first and a second angle are formed between the first and the second pivoting element. The first angle is less than the second angle. The multi-positioning assembly temporarily positions the first pivoting element with the second pivoting element. When the second pivoting element is, respectively, at the first and the second position, the restoring element has a first and a second deformation. The first deformation is less than the second deformation.

A self-balancing Two-Rotation Driving Mechanism (TRDM) uses parallelogram and has low weight, high load, high accuracy, quick response and good adaptation with multi equipment. A longitudinal rotation motor assembly is constrained fully with a base assembly and drives a longitudinal rotation assembly through connecting rod parallelogram. The lateral rotation motor assembly is assembled in the hub of a longitudinal rotation assembly and rotates an equipment clamping assembly in a lateral direction. Generally, the TRDM can drive equipment clamping assembly in two rotations, with longitudinal rotation in the range of ±45° and lateral rotation in range of ±20°. A rotation limitation is reached when limitation shafts touch the end of respective grooves.

A supporting stand is provided. The supporting stand includes an upright, a slidable clipping unit, a slider, an elastic element, and a bearing board. The upright includes a column body. The slidable clipping unit clamps the column body, and includes a structural sleeve element and a contact element. The contact element has a first contact body and a second contact body being rollable relative to the column body. The elastic element is connected to the column body and the structural sleeve element. The slider is configured to the structural sleeve element. The bearing board is disposed on the slider and bears the display. When an external force is applied, the structural sleeve element makes the slider move between a highest position and a lowest position, and when the external force is removed, the slider stops at any position between the highest position and the lowest position.

Adjustable bearing supports for single-axis trackers supported by truss foundations. A two-piece assembly joins a pair of adjacent truss legs to form a rigid foundation while providing a movable support for a tracker bearing housing assembly or other structure. The movable support may slide in-plane, or alternatively, enable the bearing housing assembly to slide and rotate with respect to the truss cap structure joining the adjacent truss legs.

Disclosed is an electronic motor with two bearings. The motor is structured so that, when loaded, the majority of the load (e.g., a radial load) is borne by one of the bearings. The bearing that bears a greater load may be larger and, thus, better suited for a heavy load. In some embodiments, the larger bearing may include rolling elements that have respective radii larger than respective radii of rolling elements of the other bearing by a ratio of at least 1.5 (150%). In some embodiments, the larger bearing may have an outer race with a radius that is greater than a radius of the outer race of the smaller bearing by a ratio of at least 1.5. In some embodiments, the motors may include a third bearing between the two bearings. The third bearing may reduce vibration in the motor.

Disclosed is an ultrasonic diagnostic apparatus including an improved actuator to compensate for a weight of an input/output device. The ultrasonic diagnostic apparatus includes a main body, an input/output device coupled to the main body and configured to receive information from a user or output information received from the main body, and a connection device to connect the main body and the input/output device, wherein the connection device includes a shaft having a shaft body, a link frame having a frame body and a shaft coupling portion extending from the frame body to be coupled with the shaft, and an actuator including a torsion spring having a first end supported by the shaft and a second end supported by the link frame, so as to compensate for a weight of the input/output device.

A stabilization degree adjustment method includes obtaining a stabilization degree adjustment instruction and adjusting a stabilization degree of a stabilization mechanism according to the stabilization degree adjustment instruction. The stabilization mechanism is configured to support a load.

The present disclosure discloses a stabilizer configured to be rotatable about a pitch axis and a roll axis for stabilizing a photographing device. Said stabilizer includes: a handle with a pitch axis motor, on a side face of which is provided with a first coupling part; a connection arm, on the distal end portion of which is provided with a holder driven by the roll axis motor and on a side face of which is provided with a second coupling part coupled with said first coupling part, such that said connection arm can move towards the distal direction or the proximal direction relative to said handle, and can move into a storage configuration with reduced storage space.

The invention relates to handheld devices for stabilizing film and video recording equipment (film cameras, video cameras and other recording devices), which compensate for shaking and vibrations from the hands or shoulder of the operator when filming in motion and allow the smooth movement of video equipment. A device for stabilizing video equipment comprises a base and a movable platform connected to one another by at least one hinge mechanism that is configured on the basis of the relationship expressed in formula (I), where x is the distance from the upper horizontal surface of the platform to the point of intersection of the axes of a hinge mechanism; K≤0.5; Vi=ai×bi×ci; ai is the length of a three-dimensional parallelepiped; bi is the height of a three-dimensional parallelepiped; ci is the width of a three-dimensional parallelepiped; n is the total number of hinge mechanisms. The technical result lies in reducing the dimensions and weight of the stabilizing device.

Examples are disclosed that relate to the rotational mounting of a display device to another supporting structure, such as a stand or a wall. One example provides a system comprising a display device, a support structure configured to be mounted to another structure to thereby support the display device on the other structure, and a mechanical interface rotationally connecting the display device and the support structure. The mechanical interface comprises three or more rail segments including a cam rail segment comprising a cam, and for each rail segment, one or more corresponding rollers, a roller for the cam rail segment being a follower and being coupled with a spring configured to bias the follower toward the cam rail segment.