An expandable and collapsible support device for multiple use enables attaining an expanded open state for use or return to a compact closed state in mere seconds. The device includes an accordion-style frame that expands laterally from a compact closed state to an expanded open state for use, and a material support cover forming the top of the device and attachable to the frame to provide a support surface above ground level for the device.

An expandable and collapsible support device for multiple use enables attaining an expanded open state for use or return to a compact closed state in mere seconds. The device includes an accordion-style frame that expands laterally from a compact closed state to an expanded open state for use, and a material support cover forming the top of the device and attachable to the frame to provide a support surface above ground level for the device.

A spring bed with quick assembly and disassembly includes two cross bars, a plurality of vertical bars, a plurality of springs, and a plurality of fixing bases. The two cross bars and the vertical bars are parallel arranged with spacing. The two ends of the vertical bars are detachably assembled to the two cross bars. Each vertical bar is disposed with a plurality of fixing bases. The springs are detachably assembled to the fixing bases. Two ends of the vertical bar are detachably connected to the two cross bars.

An expandable and collapsible support device for multiple use enables attaining an expanded open state for use or return to a compact closed state in mere seconds. The device includes an accordion-style frame that expands laterally from a compact closed state to an expanded open state for use, and a material support cover forming the top of the device and attachable to the frame to provide a support surface above ground level for the device.

An expandable and collapsible support device for multiple use enables attaining an expanded open state for use or return to a compact closed state in mere seconds. The device includes an accordion-style frame that expands laterally from a compact closed state to an expanded open state for use, and a material support cover forming the top of the device and attachable to the frame to provide a support surface above ground level for the device.

New forms of sand-resistant towels, mats, and other textiles, devices, systems and methods are provided. In some aspects of the invention, a beach towel or mat with an inherent sand guard at its edge, and around its periphery, is provided. In other aspects, the guard comprises an internal inflatable skeleton, optimized to demark a home base and prevent small children from wandering from a play area on or about the home base. In still other aspects, the towel or mat is configured for packing and toting by folding and rolling techniques, and the towel or mat presents specialized packing, toting and other devices, such as a sealable pocket(s), reversible self-holding strap(s) and a shoulder strap(s), when so folded and rolled. In several embodiments, the profile and component material(s) of the towel or mat are also specialized to prevent the influx and retention of sand and other loose ground particles.

A connecting piece (100) comprises a first body (101), two supporting legs (102) respectively connected to the left and right sides of the first body (101), a supporting arm (103) connected to the first body (101) and extends upward; the first body (101) has a first mounting hole (1011) opening forward; the supporting arm (103) has a second mounting hole (1031). It is convenient to assemble and simplifies the connection operation of a cot. A tensioning piece comprises a second body (201), a clamping portion (202), the second body (201) has a connecting hole (2011), the clamping portion (202) has an opening (2021) for clamping onto a side rod (400) of the cot, and the opening (2021) is arc-shaped. So it can be easily disassembled and assembled without additional tools. And a cot is convenient to store and disassemble and assemble.

A connecting piece (100) comprises a first body (101), two supporting legs (102) respectively connected to the left and right sides of the first body (101), a supporting arm (103) connected to the first body (101) and extends upward; the first body (101) has a first mounting hole (1011) opening forward; the supporting arm (103) has a second mounting hole (1031). It is convenient to assemble and simplifies the connection operation of a cot. A tensioning piece comprises a second body (201), a clamping portion (202), the second body (201) has a connecting hole (2011), the clamping portion (202) has an opening (2021) for clamping onto a side rod (400) of the cot, and the opening (2021) is arc-shaped. So it can be easily disassembled and assembled without additional tools. And a cot is convenient to store and disassemble and assemble.

At least one embodiment of the inventive technology may be a disassemblable platform system in a pickup truck cab, or other vehicle, such as, but not limited to, a SUV or van that (after installation), comprises: a plurality of panels (generally, 40, as installed) relatively positioned to form a flat, raised rigid platform 41 in a pickup truck cab and that is elevated above lower seat cushions, where such panels include two rear panels 1,2 (i.e., in the rear seat area), a driver area panel 3, a passenger area panel 6, and a console area panel 42 between said driver area panel and said passenger area panel. The system further includes horizontal supports 43 that underlie at least some of said panels, such horizontal supports including at least two right-left horizontal support bars 44 (i.e., a horizontal support bar that is installed in a right-left direction defined by the vehicle); and panel-attached horizontal supports 45, each of which is attached to a panel to which it is dedicated.

A portable hammock stand includes first and second identical collapsible pod assemblies. Each pod assembly incorporates a plurality of elongated rigid legs having respective top and bottom ends. A top fastening hub holds the legs together proximate their top ends, and the bottom ends of the legs diverging to a ground surface. A flexible suspension strap extends downwardly from the top fastening hub, and has a free end adapted for hanging a first end of a flexible hammock. An elongated ridge pole extends substantially horizontally between the first and second pod assemblies, and has first and second opposite ends. The first end of the ridge pole attaches to the first suspension strap between its free end and the first top fastening hub, and the second end of the ridge pole attaches to the second suspension strap between its free end and second top fastening hub.