A framing system includes a first connection assembly that engages with a substrate. The first connection assembly includes a first connector and a track. At least one spring flange defined by the first connector engages with a fastener positioned along the substrate to maintain the first connection assembly in a fixed position relative to the substrate and to interconnect the substrate with the track. The framing system further includes a second connection assembly defining a second connector engaged to a stud. The second connection assembly engages with the first connection assembly to interconnect the stud with the track.

A joint for a composite frame includes a first composite rod, a first shell abutting the first composite rod, a second shell abutting the first composite rod and disposed opposite the first shell relative to the first composite rod. The first and second shells are joined together such that composite rod is fixed therebetween. A method of forming joints of composite frame includes forming a composite frame by interconnecting a plurality of composite rods formed by an Automated Fiber Placement (AFP) manufacturing method around a mandrel, applying a first shell to the plurality of composite rods at a first location where composite rods are interconnected, applying a second shell at the first location opposite the first shell relative to the composite rods, and joining the first and second shells together with the composite rods at the first location disposed between the first and second shells.

This application discloses a support frame and an LED display screen system including the support frame. An LED display screen includes a plurality of splicing units that are spliced to each other. The support frame includes a bracket and a first rod extending in a first direction. The bracket includes a second rod and a first connection assembly, and one end of the second rod is connected to the first rod and extends in a second direction. The first connection assembly includes a connection portion and a first positioning portion, and the connection portion is disposed on the other end of the second rod and is configured to form a detachable connection with the splicing unit

The invention relates to a locking device designed to lock objects to tubes or other elongated elements. The locking device generally comprises one or more lock plates and lock housings. In one exemplary embodiment, when assembling the locking device to a tube, two lock housings are put together with open sides against each other around a tube with a dimension corresponding to approximately half of a recess which is found on the lock housing's sides and are oriented in the tube's axial direction. The two lock housings form a closed geometry around the tube. Lock plates are used to connect the two lock housings together. By applying a screw in a threaded hole in one of the lock housings' cover, the through tube is pressed against an opposite lock housing at substantially the same time as the lock plates hold the lock housings together.

A tube construction set. The tube construction set includes a set of tubes. Each tube includes a wall, where the wall is the body of the tube, a first end and a second end, where the second end is opposite the first end. Each tube also includes four holes near the first end of tube and four holes near the second end of the tube. The tube construction set also includes a set of connectors. Each connector is configured to attach two or more tubes to one another and includes a first port, where the first port is configured to receive a first tube a second port, where the second port is configured to receive a second tube. Each connector also includes a first hole near the first port and a second hole near the second port.

Arms and an associated unmanned aerial vehicle (UAV) are disclosed, which include a connecting component, a frame and arms. Each arm includes a longitudinal tube having an inverted teardrop shape-cross section with a hollow interior. The upper end of the longitudinal tube is a first curved surface. The lower end of the longitudinal tube is a second curved surface. The arc length of the first curved surface is greater than the arc length of the second curved surface. The connecting component connects the arm to the frame, and comprises an installing component and a mounting component. The installing component and the mounting component are mounted on two respective ends of the arm. The frame of UAV and the driving assembly are connected through the arm. Compared to circular shape, the raindrop/half lemniscate shape is more streamlined than those having a circular cross-sectional shape, resulting in substantially improved air fluidities.

A modular frame comprising a connector (3), a first frame member (1, 2) and a second frame member (1, 2), wherein the first frame member (1, 2) comprises one or more engagement members (5, 7) profiled to key with a first slot (6) on the connector (3) and a second slot (8) on the second frame member (1, 2).

A trampoline has a side frame supported by support legs, multiple fiberglass guardrail poles joined to the side frame or the support legs, and a guardrail netting held open by the guardrail poles. Each guardrail pole includes two fiberglass rods joined together by a connector that includes two nested securing tubes, where two respective ends of the two fiberglass rods are inserted in the internal securing tube. The external securing tube is secured outside of the internal securing tube. The guardrail netting has multiple securing fabric sleeves stitched to its top end. Each sleeve has a first part with a sealed top and a width matching that of a wider top section of the fiberglass guardrail pole, and a second part connected to the first part with a width matching that of the fiberglass guardrail pole, where the second part has a gap in the middle.

A frame assembly for a frame pool and a frame pool including a frame assembly are provided. The frame assembly includes a horizontal support, a vertical support, a T-joint, and a coupling assembly releasably connecting a corresponding one of the horizontal support or the vertical support to the T-joint. The coupling assembly includes a collar having a tubular body. In some embodiments, a guide extends outwardly from the tubular body, and a limiting member moves through the guide between a locked position and an unlocked position to selectively retain the corresponding one of the horizontal support or the vertical support to the T-joint. In some embodiments, the limiting member is integrally formed with the tubular body and movable between the unlocked and locked positions to selectively retain the corresponding one of the horizontal support or the vertical support to the T-joint.

An elongated sheet metal channel for transversely supporting drywall grid tees at regular intervals along the channel, the channel having a generally vertical web, and a lower flange and an upper flange, a vertical spacing between the flanges being sufficient to receive upright grid tees at the intervals, the lower flange having outer and mid-width portions lying in a generally horizontal plane at an interval when a tee is received therein, opposed formations stamped into one of the flanges at the intervals to longitudinally locate the grid tee, the upper flange at said intervals having a pocket for receiving a distorted end of a grid tee.