A decorative moulding assembly for a wall or ceiling in an interior space. The decorative moulding assembly may include a first moulding piece and a second moulding piece each having an ornamental front surface, a rear surface, and a channel in the rear surface and a connector for connecting the first and second moulding pieces together. The connector may include a first portion that nests within the channel of the first moulding piece and a second portion that nests within the channel of the second moulding piece. The first portion of the connector may include a U-shaped body having first and second legs that deflect inwardly towards one another as the first portion of the connector is being inserted into the first channel of the first moulding piece.

An internal splice joint that facilitates coupling of a pair of joist members together is provided. The internal splice joint includes a main wall, first and second side flanges, and first and second end flanges. The first side flange extends upwardly from the main wall. The second side flange extends upwardly from the main wall and is spaced from the second side flange. The first end flange extends from the first side flange. The second end flange extends from the second side flange. The first end flange and the second end flange extend inwardly towards each other and are spaced from each another. A joist assembly that includes the internal splice joint is also provided.

An installation system for partition panels in a room, the system including at least one upper telescopic group, having sections and constrained to the ceiling, and at least one lower telescopic group, having sections and constrained to the floor, a series of partition panels positioned between the upper and lower telescopic groups with coupling-uncoupling groups, where both the upper telescopic group and lower telescopic group comprise a first section and a second section for coupling with each other, the second section slidingly arranged inside the first section and adjustable with respect thereto, each of the coupling-uncoupling groups comprising a first female coupling element and a second male coupling element, one connected to the second section and the other to the partition panel, which can be engaged with each other by a releasable constraint.

The present invention provides a cross beam of a canopy, which addresses the problem that existing cross beams cannot simultaneously ensure convenience of assembly and guarantee stability in use. The present cross beam of a canopy comprises a plurality of hollow elongated beams, an inner side surface of each of the beams has at least one protruding and elongated protrusion along a length direction of the beams, each of the protrusions is provided with an mounting hole or a mounting groove penetrating along the length direction of the beams, at least one long rod is inserted into the mounting holes or the mounting grooves to connect all the beams in series, and two ends of the long rod protrude out of the beams and are detachably connected with a locking fastener respectively. The present invention ensures convenience of installation and guarantees the assembled cross beam has good stability.

An assembled structure system includes a prefabricated member, a fastener and a locking member. The prefabricated member is provided with at least one cavity, and the fastener is assembled in the at least one cavity. At least one fastener is assembled in each cavity. The cavity includes an upper end surface, a lower end surface, a left end surface and a right end surface. The left end surface or the right end surface includes a vertical surface perpendicularly connected to the upper end surface and an inclined surface connected to the vertical surface. A connection angle between the vertical surface and the outer side of the inclined surface forms an obtuse angle. The inclined surface is connected to the lower end surface. The fastener includes a fixed surface, two side surfaces and a bottom surface. The fixed surface, the two side surfaces and the bottom surface are hingedly connected.

A fast, flexible, and affordable structural building solution is disclosed. Current construction methodologies are prohibitively costly, slow, and wasteful. This construction method provides responsive and adaptive short to long term structural solutions. A reconfigurable flat packed modular structure can be shipped, assembled, and move-in ready in a fraction of the time of standard structural solutions. This system is easy to assemble and reusable with decreased maintenance costs and utilizes standardized shipping infrastructure. The structural elements are designed to build flexible residential, commercial, and industrial spaces. Component standardization reduces construction and maintenance cost over traditional building methods. The ease of construction reduces the learning curve for the assembly process. Embedded utilities in the components further minimize construction time. The modular nature of the design system allows for rapid assembly, disassembly, and redeployment as needed. Components are specifically built to ship using standard shipping containers for optimal organization of components and transportation.

A modular construction system comprising: a main connector having a body and an integrally formed rod, the rod having a rod tubular body, a rod insertion end, and a rod hollow chamber traversing the rod from the rod tubular body through the rod insertion end, and wherein the rod is radially disposed about the body; a plurality of main bars, the main bars having a first receiving end, a main bar tubular body, a second receiving end, a main bar hollow chamber traversing the main bar from the first receiving end through the main bar tubular body to the second receiving end, at least three main bar longitudinal sides, a plurality of apertures on the main bar longitudinal sides, and at least three main bar grooves between adjacent main bar longitudinal sides, the main bar grooves being parallel with the main bar tubular body and the main bar hollow chamber.

The present invention provides a cross beam of a canopy, which addresses the problem that existing cross beams cannot simultaneously ensure convenience of assembly and guarantee stability in use. The present cross beam of a canopy comprises a plurality of hollow elongated beams, an inner side surface of each of the beams has at least one protruding and elongated protrusion along a length direction of the beams, each of the protrusions is provided with an mounting hole or a mounting groove penetrating along the length direction of the beams, at least one long rod is inserted into the mounting holes or the mounting grooves to connect all the beams in series, and two ends of the long rod protrude out of the beams and are detachably connected with a locking fastener respectively. The present invention ensures convenience of installation and guarantees the assembled cross beam has good stability.

A connector for coupling a first column segment having a first inner surface and a first end surface to a second column segment having a second inner surface and a second end surface such that the end surfaces are adjacent one another is provided. The connector includes a plurality of fasteners and a plurality of plates each having a front face, a rear face, and a plurality of fastener apertures extending from the front face toward the rear face. Each of the fastener apertures is sized to receive one of the fasteners when coupling the first column segment to the second column segment such that the plates are spaced apart from one another. Each of the front faces is contoured to seat flush against the first inner surface and the second inner surface when the plates span the adjacent end surfaces of the coupled-together column segments.

A corner piece for mounting two profiles at an angle, the corner piece comprising at least a first and a second leg mounted mounted together at an angle to each other, wherein the first leg is arranged to be slid into a mounting channel of a first profile along the first direction and the second leg is arranged to be slid into a mounting channel of a second profile along the second direction, characterized in that at least the first leg comprises at least one protrusion extending along a height direction of the mounting channel, so that when sliding the first leg into the mounting channel of the first profile, the protrusion clamps the first leg into a predetermined position in the mounting channel of the first profile.