| 摘要 |
The disclosed Drain Apparatus with Branch Tube and Valve is a cylindrical tube consisting of the outer tube ( 1 ) and inner tube ( 13 ). The bottom part of the outer tube ( 1 ) has 2 locks ( 4 ) ( 5 ) to prevent the movement when inserting the inner tube ( 13 ) into the outer tube ( 1 ). The upper part of the inner tube ( 13 ) has a hole ( 8 ) of similar size to the branch tube ( 2 ), branching from the outer tube ( 1 ), to allow high-pressure water or air flow through the inner tube ( 13 ). Above the hole ( 8 ), a valve ( 6 ) is mounted inside the inner tube ( 13 ). In its normal position, the valve ( 6 ) will perfectly close the end of the hole ( 8 ). When high-pressure water or air flows in, the valve ( 6 ) will be pushed upwards to close the upper opening. The water or air will flow along to push blockage and waste out of the drain.
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