A structural module includes a first strut pair including a first strut and a second strut pivotably connected to each other at a first strut pair pivotable connection point, a second strut pair including a third strut and a fourth strut pivotably connected to each other at a second strut pair pivotable connection point, a first hub, a first end of the first strut and a first end of the third strut being pivotably connected to the first hub, a second huh, a first end of the second strut and a first end of the fourth strut being pivotably connected to the second hub, and a stop arrangement attached to at least one of the first hub, the first strut, and the third strut, the stop arrangement including an abutment end. The structural module is movable between a closed position in which longitudinal axes of struts of the first strut pair and the second strut pair are substantially parallel to one another. A collapsible structure and a method of erecting i collapsible structure are also disclosed.

A structural module includes a first strut pair including a first strut and a second strut pivotably connected to each other at a first strut pair pivotable connection point, a second strut pair including a third strut and a fourth strut pivotably connected to each other at a second strut pair pivotable connection point, a first hub, a first end of the first strut and a first end of the third strut being pivotably connected to the first hub, a second hub, a first end of the second strut and a first end of the fourth strut being pivotably connected to the second hub, and a stop arrangement attached to at least one of the first hub, the first strut, and the third strut, the stop arrangement including an abutment end. The structural module is movable between a closed position in which longitudinal axes of struts of the first strut pair and the second strut pair are substantially parallel to one another. A collapsible structure and a method of erecting a collapsible structure are also disclosed.

Apparatus for use in isolating a subject, the apparatus including a frame movable between collapsed and erected configurations, a body supported by the frame, wherein in the erected configuration, the body defines an internal volume for containing a subject to thereby substantially isolate the subject from a surrounding environment and a door actuator supported by the frame for moving a door between open and closed positions to thereby provide access to the internal volume.

Disclosed is a double-spliced foldable tent with central lifting and automatic opening and closing structure, including two groups of central tops, one group of middle frame and two groups of edge frames. Any group of edge frame and middle frame are connected by telescopic fork frame. Two groups of side inclined frames are arranged between a group of central top and middle frame. At least one group of side inclined frame is arranged between a group of central top and a group of edge frame. One group of central tops includes an upper top and a lower support locked or separated by spring pin. One group of side inclined frame includes a first inclined rod hinged on upper top at one end and a second inclined rod hinged on lower support at one end, of which the other end is hinged on the side wall of first inclined rod.

Passageway including a section that is extendable and retractable, the section including a frame, slide track assemblies, and scissor bar assembly. The frame has upright members. The slide track assemblies are disposed proximately to respective upright members. Each of the slide track assemblies includes a slide track and slide block. The slide track has a cavity and channel. The slide block is configured to ascend, descend, and rotate within the cavity. The slide block includes a guide block that extends from the slide block at least partially through the channel. The scissor bar assembly is secured to the upright members and slide track assemblies such that the upright members are enabled to extend and retract with respect to each other along at least one arcuate path, wherein the guide block limits rotation of the slide block within the slide track to rotation of the guide block within the channel.

Apparatus for use in isolating a subject, the apparatus including a frame movable between collapsed and erected configurations, a body supported by the frame, wherein in the erected configuration, the body defines an internal volume for containing a subject to thereby substantially isolate the subject from a surrounding environment and a door actuator supported by the frame for moving a door between open and closed positions to thereby provide access to the internal volume.

A collapsible shelter includes a group of legs for supporting the collapsible shelter, a group of outer truss links connected the group of legs, and a group of upper truss links. The collapsible shelter also includes a center hub connected to a first subset of upper truss links of the group of upper truss links. The collapsible shelter further includes a group of mounting points, each mounting point attached to a respective outer truss link of the group of outer truss links. The collapsible shelter also includes a group of flexible rods, each flexible rod having a first end attached to a respective mounting point and a second end attached to the center hub.

An anti-ponding foldable canopy tent including a tent frame assembly, a ceiling assembly, and a tarpaulin is provided. The ceiling assembly is mounted on the tent frame assembly. The tarpaulin is disposed on the ceiling assembly. The ceiling assembly includes a central lock mechanism and multiple foldable arm mechanisms annularly distributed about a periphery of the central lock mechanism. The ceiling assembly also includes multiple elastic rod mechanisms annularly distributed about the periphery of the central lock mechanism. A first end of each of the elastic rod mechanisms is rotatably connected to the central lock mechanism. A second end of each of the elastic rod mechanisms is connected to the tarpaulin for tensioning the tarpaulin. When the foldable canopy tent is in an extended state, the elastic rod mechanisms support the tarpaulin tightly to preclude ponding on the tarpaulin. The tarpaulin is elastic during tensioning, which precludes ponding.

An anti-ponding foldable canopy tent including a tent frame assembly, a ceiling assembly, and a tarpaulin is provided. The ceiling assembly is mounted on the tent frame assembly. The tarpaulin is disposed on the ceiling assembly. The ceiling assembly includes a central lock mechanism and multiple foldable arm mechanisms annularly distributed about a periphery of the central lock mechanism. The ceiling assembly also includes multiple elastic rod mechanisms annularly distributed about the periphery of the central lock mechanism. A first end of each of the elastic rod mechanisms is rotatably connected to the central lock mechanism. A second end of each of the elastic rod mechanisms is connected to the tarpaulin for tensioning the tarpaulin. When the foldable canopy tent is in an extended state, the elastic rod mechanisms support the tarpaulin tightly to preclude ponding on the tarpaulin. The tarpaulin is elastic during tensioning, which precludes ponding.