This Chong Zuo Shi Off Yu mono- Seed Shen Shrink formula Fishing poles, Qi Bao Kuo Complex Number Festival Gan Body, the Kong Xin Guan Body of each Festival Gan Body As straight Trail in front end small Er Cheng Cone shape Likes Trail more straight than Hou end, tail sleeve Jie Group Cheng Shen Shrink formula Fishing poles first of each Festival Gan Body, outer surface in the belled position of each Festival poles Body of what or shape leads to the channel in the external world at Even on a wherein surface on the surfaces Inner discharge the moisture for stretching Shrink formula Fishing poles Inner or the easy whats of sky Gas, and Let stretch Shrink formula Fishing poles stretch exhibition or Shrink closing operation energy Cis Chang plus with Jin rows, therefore can Da to Long is prolonged use Real effects of Shou lives.本創作是關於一種伸縮式釣竿,其包括複數節竿體,各節竿體為前端直徑比後端直徑小而呈錐形狀的空心管體,各節竿體之首尾套接組成伸縮式釣竿,於各節竿體的套接部位中之外表面或內表面之其中一表面上形成連通外界之通道,使伸縮式釣竿內的水分或空氣易於向外排出,而讓伸縮式釣竿的伸展或縮合操作能順暢的加以進行,故能達到延長使用壽命之實用功效。
