| 摘要 |
<p>A telescopable vacuum cleaner suction pipe comprises an outer tube (7), an inner tube (2) inserted inside said outer tube (7), a sleeve (10) fixed with the outer tube (7) and inserted between said outer tube (7) and said inner tube (2), and a locking means which locks the outer tube (7) and the inner tube (2) to be at respective positions. The locking means comprises a slider (5), a pushbutton (6) connected with the slider (5), and a locking element (9) composed of two locking pins and a connecting element (18) connected therebetween. In the locking state, the slider (5) is pressed onto the locking element (9) and the two locking pins locate respectively in two adjacent recesses on the inner tube (2) at the same time. In the unlocking state, the locking element (9) is deviated from the recesses. With the locking means, the slider is pressed uniformly and the sleeve is not easy to deform, thereby the hand handling the suction pipe could be comfortable when the suction pipe is telescoped.</p> |
