| 摘要 |
<p>The invention concerns a length adjustable telescopic pin support. The telescopic pin support fixes for example a concrete drilling machine between floor and ceiling at a place of work. When you have adjusted the telescope and found the right level the screw mechanism is placed up in the ceiling and you need to stand on a stool or such like to reach the screw mechanism. The invention is solving this problem owing to the fact that the pin is working as both pin and screw mechanism. The pin is equipped with both a screw (7) and a carried in a bearing grasp (8), whose grasp-slits (9) get a three-side range of the perforated hole edge (10) of the inner support (2). In this way a pin support with the safe grasp of the pin is received and the screw is placed in a comfortable place. The invention is used mostly at fixing of concrete drilling machines on building-places of work.</p> |
