CONNECTION STRUCTURE AND IN-PIPE WORK DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an in-pipe work device that comprises a connection structure enabling insertion into a pipe and in-pipe work to be performed with ease.SOLUTION: An interval between extension members 50 and 80 and storage members 70 and 100 can switch between the first state of making barrel parts 52 and 82 separated from storage parts 71 and 101 in the state of making spherical parts 54 and 84 housed in the storage parts 71 and 101, and the second state of making a part of the barrel parts 52 and 82 and the spherical parts 54 and 84 housed in the storage parts 71 and 101.SELECTED DRAWING: Figure 6