| 摘要 |
A multiple-direction bendable tube structure comprises a tube cut into a primary section and a secondary section joined by a clamp; a groove provided axially in the wall of the end where the secondary section connects the primary section; a positioning member inserted by a core pin pivoted to the clamp between free ends of the clamp attached with a fast wrench; the positioning member inserted into the groove to form at its inner end a conic stopper protruding inside the primary section while a longitudinal groove corresponding to the conic stopper of the positioning member being formed on the tube surface where the secondary section inserted into the primary section; a fixing member is connected to the end of the secondary section; and an elastic cord connects the fixing member and the buffer stop for the end having the fixing member of the secondary section to be inserted into the primary section and secured therein by the clamp provided with the fast wrench, or having the buffer stop to move until restricted by the conic stopper when the clamp is released to pull out the secondary section from the primary section for the secondary section to be bent at any direction as desired by stretching the elastic cord.
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