Yi Seed underarm crutch Zhang structures, wherein:The flat row Inter of The pipes Body have the main tube passage With looped pipelines channel that Like is worn in Consistent every Open Let, and the main tube passage With The looped pipelines channels The all Open Let have Complex Number Ge location holes, the main tube passage With looped pipelines channel that the main pipe Round Rod With pairs pipe Round Rod of The divide Do to wear Let what The pipes Body, And engages The location holes with The the second convex grains of the one convex With The, again on the same Line always in the main tube passage With The looped pipelines channels The location holes all equidistant arrangement what The, the positions straight Line of the rotation Turn energy Let Off From The location holes of With The second convex of The the one convex of the main pipe Round Rod With The pairs pipe Round Rod of The, Jin and can be along the The position of positioning hole of The Guan Body Inner wall Zhi Jie Shen Shrink Zhi Yu Election Select, revolving the main pipe Round Rod With The pairs pipe Round Rod of Turn The again makes The the second convex grains of the one convex With The be embedded in the specified location holes of The again, the effect of Bi Yi Da to Kuai Su Tone Zheng Long are spent.一種腋下拐杖結構,其中:該管體平行間隔開設有呈貫穿狀的主管通道與副管通道,且該主管通道與該副管通道皆開設有複數個定位孔,該主管圓桿與副管圓桿分別穿設於該管體之主管通道與副管通道,並以該第一凸粒與該第二凸粒卡合該定位孔,又該定位孔皆等距排列於該主管通道與該副管通道的同一直線上,該主管圓桿與該副管圓桿的旋轉能讓該第一凸粒與該第二凸粒脫離該定位孔之直線位置,進而能沿著該管體內壁直接伸縮至欲選擇之該定位孔位置,再旋轉該主管圓桿與該副管圓桿使該第一凸粒與該第二凸粒重新嵌入該指定的定位孔,俾以達到快速調整長度之功效。10‧‧‧管體11‧‧‧主管通道12‧‧‧副管通道111、121‧‧‧定位孔13‧‧‧底蓋131‧‧‧副管開口14‧‧‧頂套141‧‧‧主管開口142‧‧‧握把20‧‧‧主管圓桿21‧‧‧腋下夾柄22‧‧‧第一彈片221‧‧‧第一凸粒23‧‧‧通孔24‧‧‧標示刻度25、34‧‧‧管塞251、341‧‧‧彈性部30‧‧‧副管圓桿31‧‧‧彈性墊32‧‧‧第二彈片321‧‧‧第二凸粒33‧‧‧穿孔
