| 摘要 |
<p>A cleaning brush is composed of a brush head(1), a main body(2) and a brush rod(3). The brush head(1) is mounted on the main body(2), and a holding groove(23) is formed in the main body(2) for inserting the brush rod(3). A rotating loop(24) is fixed in the holding groove(23), location holes(25) are shaped at both sides of the holding groove(23), pivots(242) are shaped at both sides of the rotating loop(24), and the pivots(242) are wedged in the location holes(25). The end of the brush rod(3) connecting with the main body(2) is sleeved in the rotating loop(24), and a protruding block(301) is mounted on said end of the brush rod(3) so as to prevent the brush rod(3) from departing from the rotating loop(24). Further the end of the brush rod(3) connecting with the main body(2) is provided with outer thread, a flute(22) is provided on the main body(2) for inserting the end of the brush rod(3) with outer thread, and inner thread is provided in the flute(22) in order to cooperate with the outer thread of the brush rod(3). Thread fit between the brush rod(3) and the main body(2) urge both expanding orientation exactly, effectively and expediently.</p> |
