A vent of foldable tent frame

Abstract

The present invention provides a foldable tent frame with a double-roof vent typically comprised of poles, stay bars and roof cross braces hinged on a tip hub, all of them construct the main body of the tent, a small ventilation roof-boom frame connected on the top center of the main body of the tent; said ventilation roof-boom frame is consisted of a central stem, side struts, upper bracing ribs and central rib-hub; said central stem is fastened on the up side of the tip hub with the low end vertically, and fastened on the bottom side of the rib-hub with the top end; each side strut is hinged on one side of the corresponded roof brace with the low end, and hinged on the same side of the coordinated upper bracing rib with the top end; all the upper bracing ribs are hinged on the central rib-hub with the tip ends respectively. This structure can make the whole tent mount and disassemble conveniently and rapidly, and guarantee the tent use normally.

1 . A foldable tent frame with a double-roof vent typically comprised of poles, stay bars and roof cross braces hinged on a tip hub, all of them construct the main body of the tent, a small ventilation roof-boom frame connected on the top center of the main body of the tent; said ventilation roof-boom frame is consisted of a central stem, side struts, upper bracing ribs and central rib-hub; said central stem is fastened on the up side of the tip hub with the low end vertically, and fastened on the bottom side of the rib-hub with the top end; each side strut is hinged on one side of the corresponded roof brace with the low end, and hinged on the same side of the coordinated upper bracing rib with the top end; all the upper bracing ribs are hinged on the central rib-hub with the tip ends respectively.  
   
   
       2 . A foldable tent frame with a double-roof vent typically comprised of poles, stay bars and roof cross braces hinged on a tip hub, all of them construct the main body of the tent, a small ventilation roof-boom frame connected on the top center of the main body of the tent; said ventilation roof-boom frame is consisted of a central stem, side struts, upper bracing ribs and central rib-hub; said central stem is fastened on the up side of the tip hub with the low end vertically, and fastened on the bottom side of the rib-hub with the top end; each side strut is hinged on one side of the corresponded roof brace with the low end via a pivot bearing, and hinged on the same side of the coordinated upper bracing rib with the top end; all the upper bracing ribs are hinged on the central rib-hub with the top ends eccentrically and respectively so that the upper bracing ribs are closed between the roof cross braces and the side struts in folded state for folding to a minimalist volume.