The utility model relates to a combined structure of a head end of a pipe endoscope and a flexible neck,It includes: an image head,It has a shell；A bridge connector；And a neck,It has a skeletonI. water proofing pipeAn outer spring tube and an inner coil tube；Among them,The two ends of the framework are respectively connected with the shell and the bridge piece；The waterproof pipe,The pipe wall is made of seamless elastic plastic,And is sheathed and covered outside the skeleton；The outer spring tube,The two ends are respectively connected to the shell and the bridge piece,And is sheathed outside the waterproof pipe；The inner coil tube,It is sheathed outside the waterproof pipe,The diameter of the inner coil tube is smaller than that of the outer spring tube,Between the waterproof pipe and the outer spring pipe,The spiral direction of the inner coil tube is opposite to that of the outer spring tube.一種管道內視鏡之頭端與可撓頸部之組合結構，包含有：一取像頭，具有一殼體；一橋接件；以及一頸部，具有一骨架、一防水管、一外彈簧管以及一內線圈管；其中，該骨架之兩端分別連接於殼體以及該橋接件；該防水管，管壁係為無縫的彈性塑料材質，且套設並包覆於該骨架外；該外彈簧管，兩端分別連接於該殼體以及該橋接件，且套設於該防水管外；該內線圈管，套設於該防水管外，該內線圈管的口徑小於該外彈簧管，而位於該防水管與該外彈簧管之間，該內線圈管的螺旋方向與該外彈簧管的螺旋方向相反。
