| 摘要 |
PROBLEM TO BE SOLVED: To provide a pipe joint structure simple in structure, having high durability, and capable of firmly connecting a pipe to be connected, and keeping a stable connecting state without looseness. SOLUTION: This pipe joint structure is provided with a joint main body 1 having a female screw part 10 at an open end, and a cylindrical retainer 4 having a male screw part 13 engaged with the female screw part 10 and a pipe stopping small disk 6 buried to be partly projected on the outer periphery side along the ridge of the male screw part 13 and partly exposed to the inner peripheral surface. A short pipe-like inner 20 is fitted to the inner peripheral surface of the tip of an inserted pipe 7 to be connected.
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