| 摘要 |
The coupler (100) includes a male coupler (110) formed with an annular groove (111), and a female coupler (120) into which the male coupler (110) is detachably inserted. The female coupler (120) includes a first body part (130) downwardly open, a second body part (140) upwardly open, being rotatably connected with the first body part (130), and defining a hollow space (160) together with the first body part (130), and a guide (150) housed in the space (160), and supporting the male coupler (110) inserted into the female coupler (120). The guide (150) is composed of a material having elasticity, and exerts an elastic force on the first body part (130) and the second body part (140) such that they are closed to each other. |
