| 摘要 |
A socket for use with a plug, having a cylindrical connector, to form a pipe coupling comprises a main cylinder provided with a cylindrical side wall for defining an axial hole, an axial extending slit formed at the side wall of the main cylinder, and a lock system for selectively locking the connecting portion of the plug. The socket further comprises an inner sleeve including a rear portion axially guided through the inner hole of the main cylinder, an inner flow passage, end an engaging member having a front and projected outward from the rear sleeve in the radial direction and then outside through the slit. The inner sleeve can move between its advanced position where the inner flow passages are communicated with a flow passage in the connecting portion of the plug and its retreated position where they are separated from each other. An operating lever is pivoted on the side wall of the main cylinder at one end thereof to selectively move between first and second positions, and curved slits formed at the operating lever guides the engaging member in such a way that the sleeve is positioned at its advanced position when the operating lever is at the first position and that the sleeve is positioned at its retreated position when the operating lever is at the second position.
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