本发明涉及一种折叠凉棚，包括刚性铰接装置，交叉平面刚性铰接装置，单向锁装置、竖管单向滑套装置，腿单向滑套装置，各型水平交叉管，直向交叉管，水平单交叉管，四角伸顶棚装置，延伸管，竖直套管，伸缩腿管，腿管等，铰接组成四面矩形或放射性交叉管铰接的桁架结构，使各刚性铰接交叉管能落入刚性铰接装置和交叉平面刚性铰接装置的对夹长槽形铰接啮合结构内，实现刚性铰接；采用单向离合的锁装置和滑套，实现无级调整折叠凉棚的高度；采用水平交叉绳索、斜交叉绳索，水平环向绳索、外沿绳索等各种柔、弹性绳索绷紧折叠凉棚，改善和提高了凉棚系统刚性和增加遮阳面积，同时降低了凉棚的材料消耗和制造成本，减低了凉棚的重量，便于携带。

The invention relates to a folding shade shed. The folding shade shed comprises rigid hinge devices, cross plane rigid hinge devices, one-way lock devices, vertical pipe one-way sliding sleeve devices, leg one-way sliding sleeve devices, various horizontal cross pipes, straight cross pipes, horizontal single cross pipes, four-corner extending ceiling devices, extending pipes, vertical sleeves, telescopic leg pipes, leg pipes and the like. A truss structure hinged by rectangular or radioactive cross pipes on four sides is formed by hinging, so that rigid hinged cross pipes can fall into a butt-clamping long-groove-shaped hinged meshing structure of the rigid hinge devices and the cross plane rigid hinge devices to realize rigid hinging; the one-way clutch lock devices and the one-way clutchsliding sleeves are adopted, and stepless adjustment of the height of the folding shade shed is achieved; and various flexible and elastic ropes such as a horizontal cross rope, an oblique cross rope, a horizontal annular rope and an outer edge rope are adopted to tighten the folding shade shed, so that the rigidity of the shade shed system is improved, the sunshade area is increased, the material consumption and the manufacturing cost of the shade shed are reduced, the weight of the shade shed is reduced, and the shade shed is convenient to carry.