One embodiment provides a method and apparatus for suspending air conditioning duct works from a support structure comprising unistrut type support beams which apparatus includes a plurality of support brackets arranged and configured for being slidably interlockable with the interior of the unistrut beam members. The support brackets can be slid inside the interior of the support beam until adjacent a support beam which support beam can be connected to the support bracket. In like manner additional support brackets can be inserted into the interior of the support beam members to be adjustably located next to their respective support rod. In such manner multiple support rods can be used to support a frame member even where the support rods are not symmetrically located along the length of the support beam as the support bracket can be slid/moved inside the support beam until lining up with its respective support rod. Additionally, the entire support framework can be moved relative to the plurality of support rods by sliding the framework relative to the support brackets. In such manner the location of the supporting frame member can be changed without moving the support rods.

A mounting bracket for a ceiling lamp includes a support frame, a lamp bracket body, and a locking screw. The lamp bracket body is secured to the support frame by the locking screw. The support frame includes a frame body, a locking hook, and a limit locking plate. The limit locking plate has a threaded limit hole. The locking screw includes a nut, a movable section, and a threaded fastening section. The movable section is mounted in the limit hole. The lamp bracket body has a first function portion and a second function portion. The second function portion has a threaded locking hole. In assembly, the first function portion is mounted on the locking hook, and the fastening section is screwed into the locking hole.

A trapeze hanger fitting includes a strut connecting portion configured for insertion into an open interior of a strut through an open longitudinal end of the strut to connect the trapeze hanger fitting to the strut. A rod securement portion is connected to the strut connecting portion and configured for securement to a rod to secure the trapeze hanger fitting to the rod. The rod securement portion is configured to be disposed outside the open interior of the strut and longitudinally outward from the open longitudinal end of the strut when the strut connecting portion is inserted into the open interior of the strut.

This application discloses a stand assembly that includes an upper portion for holding electronic components and a lower portion for supporting the upper portion. The lower portion including a base, a joint, and a second fastener structure configured to mate with a first fastener structure of the upper portion. The first fastener structure and the joint are configured to respectively provide a first degree of freedom of motion and a second degree of freedom of motion of the upper portion with respect to the lower portion. Movement of the upper portion at the first degree of freedom has substantially consistent resistance through first part of a first full range of motion associated with the first degree of freedom of motion. Movement of the upper portion at the second degree of freedom has substantially consistent resistance through a second full range of motion associated with the second degree of freedom.

A ceiling fan assembly can include a motor for rotating one or more blades to drive a volume of air about a space. The ceiling fan assembly can include a ceiling fan mount with a canopy. The canopy can be received by a mounting bracket to enclose the mounting hardware near the ceiling.

A mounting plate assembly has a mounting plate for mounting a light fixture in holes of different diameters and wherein a guide rail assembly is secured to a rear face of the mounting plate on opposed sides of an aperture. Each guide rail assembly has a novel displaceable spring clamp structure having to a displaceable base coupled for sliding displacement along a guide rail assembly. Spring biasing elements are provided between the displaceable base and the guide rail assembly to urge a bottom face of the displaceable base against a flat top surface of a mounting base to which the guide rails are secured. A retention formation is provided in the bottom surface of the displaceable base for retention coupling with a selected one of space-apart engageable retainers immovably secured to the flat top surface of the mounting base and aligned with the retention formation to arrest the displaceable base at a desired location to position the spring clamp structures at a desired location with respect to the size of a hole formed in the sheet material and to which a light fixture is to be secured.

In order to facilitate horizontally hanging an object, a hanging mechanism includes: a first hanging shaft to be hung from a ceiling; a second hanging shaft supported so as to be hung from the first hanging shaft; and a connecting section connecting the first hanging shaft and the second hanging shaft. The connecting section includes: a protruding spherical surface of a first connecting member that is provided on the first hanging shaft side; and a recessed surface portion, which is a recessed spherical surface of a second connecting member that is provided on the second hanging shaft side and that is in contact with the spherical surface of the first connecting member.

Embodiments of the present invention provide systems and methods for mounting an electrically-powered device to a ceiling or other supporting structure. The electrically-powered device can be, for example, a ceiling fan, a ceiling fan with a lighting fixture, or a lighting fixture.

A horizontal protective device (10) for a medical display hanger comprises an upper ring (1), a middle ring (2), a lower ring (3), an upper rotating shaft (4) and a lower rotating shaft (5), wherein the upper ring (1) is connected to the bottom of a medical pendant (6), the lower ring (3) is connected to the top of the medical display hanger (7), and the middle ring (2) is provided with a total of four holes (8) in front, rear, left, and right portions thereof; one end of the upper rotating shaft (4) is fixedly connected to the upper ring (1), and the other end of the upper rotating shaft (4) passes through one of the holes (8) of the middle ring (2) to form a shaft-hole clearance fit; one end of the lower rotating shaft (5) is fixedly connected to the lower ring (3), and the other end of the lower rotating shaft (5) passes through a further one of the holes (8) of the middle ring (2) to form a shaft-hole clearance fit; and the upper rotating shaft (4) and the lower rotating shaft (5) are spatially perpendicular to each other. The medical display hanger (7) can be subjected to tilt avoidance in the event of an accidental collision in any horizontal direction.

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.