A kind of link piece structure,It includes a fasteners and one can be arranged the revolving part rotated on fastener,The fastener has a rod segment and a block,The revolving part sets a loop shaped set portion so that a body of rod one end is curved,Another end bends a switching part,And the rod segment of the fastener is arranged by the loop shaped set portion and on what block； Wherein,The adapter is ring or the shape of falling R； Another person,The adapter also can upwardly extend a movable hook part at a U-shaped switching part Hou by rod segment reflexed or upper ring buckles in the what rod segment； In addition,The fastener further includes the I-shaped shape rotary sleeve or convex character shape rotary sleeve for being nested with rod segment,Revolving part is provided and is nested with Hou formation bispin rotating function,To reach the rotates effe of flexibility ratio more preferably.一種連結件結構，其包含一扣件及一可套設扣件上旋轉的旋轉件，該扣件具有一桿段及一擋塊，該旋轉件以一桿體一端彎設一環圈狀套部，另端彎折一轉接部，並由該環圈狀套部套設該扣件之桿段而抵靠於擋塊上；其中，該轉接件為環圈或倒R狀；另者，該轉接件亦可由桿段反折成一U狀轉接部後向上延伸一活動勾部或上環圈扣結於該桿段上；此外，該扣件更包含套置桿段的一工字狀旋轉套或凸字狀旋轉套，提供旋轉件套置後形成雙旋轉功能，以達靈活度更佳之旋轉效果。
