| 摘要 |
<p>A brush drill attachment for cleaning the bottom surface of a pile borehole is provided, the attachment comprising: a body (1); an air chamber (3) and a suction pipe (4) provided in said body (1); a chamber plate (5); and a brush (5), the clamping plate (5) is fitted onto the lower surface of a base plate (1-2) of the body (1), a first end of the brush (6) is held in the clamping plate (5) and the second end of the brush extends downwardly from the clamping plate (5) for performing a cleaning task on the bottom surface of the pile borehole in use.</p> |
