A threaded joint arrangement with visual and tactile indication of correct tightening force, includes a threaded fastener having a fastener shaft and a fastener head, a biasing member, a first object provided with a cavity in a reference surface with a bottom surface provided with a through hole, and a second object with a threaded hole. The through hole is aligned with the threaded hole and the fastener shaft extends through the through hole and is in threaded engagement with the threaded hole. The biasing member is arranged in the cavity between the fastener head and the bottom surface and is compressed between the fastener head and the bottom surface in response to rotation of the threaded fastener. An alignment surface is movable by rotation of the threaded fastener between a first position outside the cavity, a second position flush with the reference surface and a third position inside cavity.

A mounting base of a ceiling fan has a mounting disc, a fitting sleeve, and a positioning unit. The mounting disc has a through hole. The fitting sleeve is mounted in the through hole and has a hanging block located on an end of the fitting sleeve. The fitting sleeve is hung on the mounting disc via the hanging block. An accommodating space is formed through the fitting sleeve and is adapted to accommodate a hanging rod. The positioning unit is mounted in the accommodating space and is capable of engaging with the hanging rod. The positioning unit has a bending edge. The positioning unit is hung on the fitting sleeve via the bending edge. The mounting base has a simplified assembling process and a great stability in mounting structure.

A suspension holder and a frame unit thereof are provided. The frame unit includes a main segment, a suspension segment, and a holding segment. The main segment is in an elongated shape defining a longitudinal direction. The main segment includes a selecting portion, two long lateral edges, a first mating portion, and a second mating portion, the latter two of which are spaced apart from the selecting portion along the longitudinal direction. The suspension segment and the holding segment extend from the two long lateral edges of the main segment, respectively. The selecting portion selectively geometrically corresponds with the first mating portion or the second mating portion.

An accessory mounting apparatus and system are provided. The system includes a structural framing, an accessory mounting apparatus, and an accessory. The accessory mounting apparatus includes a first component, a second component, and a connector arm. The first component includes a first base, a first rail connector that extends from the first base, and one or more first connectors. The second component includes a second base and a second rail connector that extends from the second base. The connector arm includes a second connector and a mounting arm, and the second connector is coupled to the one or more first connectors. Further, the first rail connector and the second rail connector are configured to engage a first rail slot and a second rail slot of the structural framing, accordingly. Additionally, the accessory is coupled to the mounting arm.

One embodiment provides a pre fabricated kit for assembling a supporting framework comprising a plurality of customized beams or supports with a connection openings/hole patterns selected from a set of connection hole patterns and using a plurality of generic connectors which fit on the interior of the customized beams or supports.

A photobooth that is suspended from a rigid non-moving structure, such as a ceiling, is disclosed. The photobooth may include a support structure that includes a non-movable section and a movable section. The non-movable section is not moved and remains fixed after installation relative to the ceiling. The movable section may comprise posts or brackets, may move relative to the non-movable section, and may include one or both of a camera or lighting. Further, to rigidize the support structure, a track may be attached to some or all of the posts or brackets, thereby rigidizing the structure and reducing jitter which may affect operation of the camera or lighting.

A mounting base of a ceiling fan has a mounting disc, a fitting sleeve, and a positioning unit. The mounting disc has a through hole. The fitting sleeve is mounted in the through hole and has a hanging block located on an end of the fitting sleeve. The fitting sleeve is hung on the mounting disc via the hanging block. An accommodating space is formed through the fitting sleeve and is adapted to accommodate a hanging rod. The positioning unit is mounted in the accommodating space and is capable of engaging with the hanging rod. The positioning unit has a bending edge. The positioning unit is hung on the fitting sleeve via the bending edge. The mounting base has a simplified assembling process and a great stability in mounting structure.

A security camera system includes: a camera module; a support portion arranged at one side of the camera module and connected to a housing bracket or an outside structure; a tilt axis portion connected to one side of the camera module and coupled to the support portion to be rotatable relative to the support portion; and a tilt motor configured to transfer a rotation force to the tilt axis portion and revolve around a rotation axis of the tilt axis portion during rotation of the tilt axis portion.

An adjustable hanging device for securing an electronic device and being capable of angular adjustment is provided. One control screw is disposed for the operation along one dimension. When the adjustable hanging device is used for multi-dimensional angular adjustments, the control screws are disposed to extend to one operational side. Due to the mechanical integration and the compact design of the adjustable hanging device, the advantages of volume reduction and simpler manipulation at one operational side would be expectable.

A device for stabilizing a sheet material to a stud member includes two side members that sandwich the stud member and a back member joining the two side members together. One or more protrusions may extend inward from one or both of the side members so that the device is frictionally fit and secured to the stud member. A shelf extends away and outward from the back member so that the sheet material can be placed on the shelf before the sheet member is fastened to the stud member. The device can include an angled portion at the bottom of the back member so that a hammer can apply a force to the angled portion to cause the device to move away from the stud member for removal.