| 摘要 |
<p>An outlet plug including a cylindrical part (107) with a circular base, a first flared end (108) defining a valve seat, and a second end provided with an external thread (115), the cylindrical wall of said part (107) having channels (112) for an overflow outlet. Said thread (115) connects the plug to the outlet apparatus, a threaded portion (130) having the same diameter and pitch as the first thread (115) is provided between said thread (115) and said channels (112) for receiving a mounting nut (133), and an opening (131) is provided between the threaded portion (130) and the thread (115) for receiving a movable ball support device (232) for controlling a valve (217) interacting with said valve seat. The ball support (232) consists of a cylindrical tubular member with a circular internal cross-section, and the lower end of the valve has an abutment which is upwardly engaged by the end of a control rod (23), regardless of its spatial position.</p> |
