Adjustment of a posture of a ball joint is facilitated. A support device includes a pan head unit, a ball joint having a first end to which the pan head unit is attached and a second end provided with a ball portion, a ball holder configured to selectively fix the ball portion, a ball fixing screw connected to the ball holder and configured to move the ball holder between a locked position at which the ball portion is fixed and an unlocked position at which the ball portion is freely rotatable, and an elastic member configured to urge the ball holder toward the ball portion. The ball holder and the ball fixing screw are connected to each other so as to be strokable with a predetermined stroke amount. The predetermined stroke amount is smaller than a movement amount of the ball fixing screw between a first position corresponding to the locked position and a second position corresponding to the unlocked position.

A display includes a screen, a stand and a hanging element. The stand is connected to the screen and has a first end and a second end. The hanging element is selectively disposed on the first end or the second end. When the hanging element is disposed on the first end, the hanging element could clamp a first plate; when the hanging element is disposed on the second end, the hanging piece could clamp a second plate, wherein the first plate is perpendicular to the second plate.

Disclosed is a display device. The display device of the present disclosure may include: a base; a head spaced apart from the base and including a display panel; a pole extending from the base in a direction in which the head is spaced apart from the base; an articulated connector coupled to the head; an elevating module movably coupled to the pole in a length direction of the pole; and an arm extending in a direction intersecting the head and the pole, the arm having one side connected to the articulated connector and the other side connected to the elevating module.

In some embodiments, a computer peripheral mounting device for connecting a peripheral device to a support, wherein the support defines a thickness, comprises a fixed tubing extending in a longitudinal direction; a clamp coupled to a first end of the fixed tubing; an adjustment mechanism positioned at a second end of the fixed tubing, opposite the first end, and a shaft positioned within the fixed tubing and coupled between the adjustment mechanism and the clamp, wherein the adjustment mechanism is configured to rotate around the longitudinal direction relative to the fixed tubing in order to rotate the shaft within the fixed tubing and without the adjustment mechanism nor the shaft translating along the longitudinal direction relative to the fixed tubing, and wherein rotation of the shaft is configured to cause the distance between the first surface and the second surface to change.

Disclosed is a display stand, including a moving unit configured to extend in a direction perpendicular to a first link configured to extend from one side of a monitor fixing unit, and an elevating unit including a housing configured to have an elevating hole formed therein so that the moving unit is inserted into the elevating unit therethrough, a support member installed in the housing so that the moving unit is movable in a lengthwise direction of the housing and configured to extend in a direction perpendicular to a floor surface, and friction units configured to surround the support member, to have one surface coupled to the moving unit and a plurality of friction members, and to come into contact with an inner surface of the housing.

Disclosed is a display stand, including a moving unit configured to extend in a direction perpendicular to a first link configured to extend from one side of a monitor fixing unit, and an elevating unit including a housing configured to have an elevating hole formed therein so that the moving unit is inserted into the elevating unit therethrough, a support member installed in the housing so that the moving unit is movable in a lengthwise direction of the housing and configured to extend in a direction perpendicular to a floor surface, and friction units configured to surround the support member, to have one surface coupled to the moving unit and a plurality of friction members, and to come into contact with an inner surface of the housing.

A stackable and nestable support apparatus the stackable and nestable support apparatus of the present invention includes multiple support elements that are stackable to provide for support base of varied elevations. In a stacked, supporting position, one or more of the support elements are selected for emplacement between a foot of a leveling jack utilized to level the recreational vehicle (RV). The number and orientation of the one or more support elements are selected based on a needed vertical support elevation between the foot of the leveling jack and the terrain T in which the RV is emplaced. The multiple support elements are also nestable to reduce storage space when not in use.

A stackable and nestable support apparatus the stackable and nestable support apparatus of the present invention includes multiple support elements that are stackable to provide for support base of varied elevations. In a stacked, supporting position, one or more of the support elements are selected for emplacement between a foot of a leveling jack utilized to level the recreational vehicle (RV). The number and orientation of the one or more support elements are selected based on a needed vertical support elevation between the foot of the leveling jack and the terrain T in which the RV is emplaced. The multiple support elements are also nestable to reduce storage space when not in use.

A vertical protective device for a medical display hanger comprises a contact piece (1), a microswitch (2), a rotating shaft (3) and a vertical protective plate (4), wherein the contact piece (1) is connected to one end of the rotating shaft (3), the vertical protective plate (4) is connected to the other end of the rotating shaft (3), and the microswitch (2) is arranged on a microswitch support (10); and when a collision of the vertical protective plate (4) happens, the rotating shaft (3) drives the contact piece (1) to rotate, and the contact piece (1) triggers the microswitch (2), so as to control the medical display hanger (30) to stop moving or immediately rise. When an accidental collision of the medical display hanger (30) happens in a substantially vertical direction, the medical display hanger (30) can effectively come to an emergency stop or avoid.

Disclosed are a calibration system (600a) and a calibration support (100a) therefor. The calibration support (100a) comprises: a base (10); a vertical frame assembly (20a), comprising a fixed vertical rod (22) and a movable vertical rod (24), wherein the fixed vertical rod (22) is mounted on the base (10), and the movable vertical rod (24) is capable of moving, within a preset range relative to the base (10), in the length direction of the fixed vertical rod (22); and a cross beam (30a), which is detachably mounted to one of a first mounting seat (35a) and a second mounting seat (36a) which are connected to the movable vertical rod (24), the cross beam (30a) being used for mounting a calibration element, and the calibration element being used for calibrating an advanced driver assistant system of a vehicle. The position of the first mounting seat (35a) is higher than the position of the second mounting seat (36a); and when moving relative to the base (10) in the length direction of the fixed vertical rod (22), the movable vertical rod (24) drives the first mounting seat (35a) and the second mounting seat (36a) to move relative to the base (10) in the length direction of the fixed vertical rod (22).