A link ring,The utility model comprises a first connecting piece and a second connecting piece at two ends of a connecting body.The first connector and at least one connector of the second connector have a suitable length rod.The rod body forms a connecting part with one end of the connecting body.The other end is provided with a through hole and a ring.The second connecting piece is an u03a9 - type rotating ring；Accordingly,It can swing flexibly by the ring of the pivoted bar body.When it is connected with the bus in series, it can achieve proper relaxation and release effect.Effectively avoid the occurrence of continuous pulling and easy twisting.And it has the effect of flexible swing when it is connected with the sub line.一種連結環，其包含一連結本體兩端分別各樞結有一第一連結件及一第二連結件，該第一連結件及該第二連結件至少一連結件具有一適長桿體，該桿體相對連結本體一端形成一結合部，另端貫設一穿孔樞結一環圈，該第二連結件為一Ω型轉環；據此，可藉由樞結桿體之環圈具靈活擺動作用，俾與母線串組時可達到適當鬆弛釋放效果，有效避免持續拉持易扭斷發生，而與子線串組時又具靈活擺動效果。
