| 摘要 |
PROBLEM TO BE SOLVED: To provide a joint structure for connecting pipes that enhances safety and simplifies work procedures.SOLUTION: A pipe connection joint structure 1 for connecting pipes 6 includes a tubular elastic body 20 of tubular form that is made of an elastic material and is inserted into the pipe 6, and a bolt member 30 and a nut member 40 that serve as a compression part for elastically deforming the tubular elastic body 20, in such a way to have the tubular elastic body 20 swell in the direction to enlarge the diameter by compressing the tubular elastic body 20 in the direction of tube axis. The tubular elastic body 20 is pressed against the inner peripheral surface 6b of the pipe 6 as the tubular elastic body 20 is elastically deformed due to compression in the direction of tube axis by the compression part when the tubular elastic body 20 has been inserted in the pipe 6, and a fixing effect for connecting the pipes 6 arises between the pipe 6 and the tubular elastic body 20, due to frictional resistance between the outer peripheral surface 21 of the tubular elastic body 20 and the inner peripheral surface 6b of the pipe 6. |
