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    • 4. 发明申请
    • Articulative extension pipe of vacuum cleaner
    • 真空吸尘器的延伸管
    • US20060156510A1
    • 2006-07-20
    • US11207454
    • 2005-08-19
    • Heung-Jun ParkHwa-Joong KimKeon-Soo Choi
    • Heung-Jun ParkHwa-Joong KimKeon-Soo Choi
    • A47L9/24
    • A47L9/242A47L9/009A47L9/248
    • An articulative extension pipe for a vacuum cleaner has a first extension pipe having a joint, a second extension pipe having a joint receiving part in which a joint of the first extension pipe is inserted, a sealing cover enclosing the first and the second extension pipes, and a locking button disposed between the sealing cover and the first extension pipe, and having at least one coupling protrusion on the outer circumference. One of the sealing cover, and the first and the second extension pipes has at least one coupling recess in which the coupling protrusion of the locking button is selectively inserted so that the first extension pipe can rotate with respect to the second extension pipe. The sealing cover further includes a wheel, which rolls in contact with the surface being cleaned, and a cotton flannel is disposed on the outer circumference of the wheel.
    • 一种用于真空吸尘器的铰接延伸管具有一个具有接头的第一延伸管,一个具有接头接收部分的第二延伸管,其中插入有第一延伸管的接头,密封盖包围第一和第二延伸管, 以及设置在所述密封盖和所述第一延伸管之间并且在所述外周上具有至少一个联接突起的锁定按钮。 密封盖中的一个以及第一和第二延伸管具有至少一个联接凹槽,锁定按钮的联接突起被选择性地插入其中,使得第一延伸管能够相对于第二延伸管旋转。 密封盖还包括与待清洁的表面接触的滚轮,并且棉花绒布设置在车轮的外圆周上。