The present disclosure discloses a quick assembly table and an installation method thereof. The table includes a tabletop and legs. The legs are evenly arranged at a bottom of the tabletop, a sliding slot is disposed at the bottom of the tabletop, the legs slide along and fit into the sliding slot, the legs are connected by an annular beam in between, the annular beam is fitted with a locking screw, and the locking screw expands or shrinks the annular beam to push the legs to slide along the sliding slot. The tabletop and legs are installed in a slide-and-fit manner without screws, and are convenient to assemble and disassemble. In addition, relative locations between all the legs and the tabletop can be adjusted synchronously through expansion or shrinkage of the annular beam, making adjustment flexible and convenient.

A travel bassinet includes a first side structure, a second side structure, a fixed end structure and a pivoting end panel. The fixed end structure is disposed between ends of the first side structure and the second side structure. The pivoting end panel is movably disposed between the first side structure and the second side structure and opposite to the fixed end structure. The pivoting end panel is utilized to switch between a first operation mode and a second operation mode for adjusting an accommodating space of the travel bassinet.

A travel bassinet includes a first side structure, a second side structure, a fixed end structure and a pivoting end panel. The fixed end structure is disposed between ends of the first side structure and the second side structure. The pivoting end panel is movably disposed between the first side structure and the second side structure and opposite to the fixed end structure. The pivoting end panel is utilized to switch between a first operation mode and a second operation mode for adjusting an accommodating space of the travel bassinet.

A leg coupling for a table includes a coupling body for supporting a lower surface of a top plate. The coupling body includes an upper coupling projecting downward. The upper coupling is configured to be inserted into a coupling insertion hole of a leg. A lower coupling with a thread hole is coaxially arranged under the upper coupling. The coupling body includes a bolt insertion hole. A bolt inserted into the bolt insertion hole is screwed into the thread hole of the lower coupling. A peripheral surface of the upper coupling or a peripheral surface of the lower coupling can be press-fitted to an inner surface of the leg. The peripheral surface of the upper coupling has the same diameter as the peripheral surface of the lower coupling. Opposing ends of the upper coupling and the lower coupling have taper surfaces that can be engaged with each other.

A leg coupling for a table includes a coupling body for supporting a lower surface of a top plate. The coupling body includes an upper coupling projecting downward. The upper coupling is configured to be inserted into a coupling insertion hole of a leg. A lower coupling with a thread hole is coaxially arranged under the upper coupling. The coupling body includes a bolt insertion hole. A bolt inserted into the bolt insertion hole is screwed into the thread hole of the lower coupling. A peripheral surface of the upper coupling or a peripheral surface of the lower coupling can be press-fitted to an inner surface of the leg. The peripheral surface of the upper coupling has the same diameter as the peripheral surface of the lower coupling. Opposing ends of the upper coupling and the lower coupling have taper surfaces that can be engaged with each other.

For a flexible fastening, a fastening device for fastening a column to a support device comprises: a column plate which can be fastened to one end of the column and an accommodation device which can be fastened to the support device. The accommodation device has a longitudinal shape with a longitudinal direction and a predetermined length in the longitudinal direction and a cross-section, whereby an accommodation space configured to accommodate the column plate in a manner shiftable in the longitudinal direction and in an exactly fitting manner in the direction perpendicular to the longitudinal direction is formed. The fastening device comprises a fastening member configured to fasten the column plate to the accommodation device along the longitudinal direction, and, in the longitudinal direction, the column plate has a dimension which is smaller than the predetermined length in a state mounted in the fastening device.

An assembly includes an elongated channel member, a clip and a leg. The clip includes a hook proximate the first end of the clip, a fastener proximate the second end of the clip, and a pivot protrusion disposed between the first and second ends of the clip. The clip is attached to the first end of the elongated channel member. The leg is oriented at a first angle to the elongated channel member and adjacent the first end of the elongated channel member. The leg includes an opening. The hook of the clip is configured for insertion into the opening of the leg. Using the fastener to move the second end of the clip toward a surface of the elongated channel member causes the hook of the clip to rotate about the pivot protrusion, thereby engaging a surface of the leg. A method is described for assembling a structure.

A foldable supporting frame includes an upper frame and a plurality of legs disposed below the upper frame when unfolded to support the upper frame. The upper frame includes a plurality of bars, with adjacent bars in the plurality of bars coupled to each other or integrally formed with each other at their adjacent end portions. Each of the plurality of legs is coupled with a corresponding bar in the plurality of bars and independently rotatable about an axis defined by the corresponding bar. When folded, the plurality of legs is disposed in an interior defined by the upper frame.

A foldable supporting frame includes an upper frame and a plurality of legs disposed below the upper frame when unfolded to support the upper frame. The upper frame includes a plurality of bars, with adjacent bars in the plurality of bars coupled to each other or integrally formed with each other at their adjacent end portions. Each of the plurality of legs is coupled with a corresponding bar in the plurality of bars and independently rotatable about an axis defined by the corresponding bar. When folded, the plurality of legs is disposed in an interior defined by the upper frame.

An assembled product includes at least three elements arranged in three different planes. A first element is connected perpendicular to a second element, and a third element is connected perpendicular to the second element. The assembled product includes one or more locking devices, each comprising a flexible tongue arranged in an insertion groove one of the at least three elements. The flexible tongue cooperates with a tongue groove, at an adjacent one of the at least three elements, for locking the one element and the adjacent element together. A second edge of the second element is connected to a second edge of the third element by a first of said locking devices.