| 摘要 |
<p>The device has a plate (2) joining first and second tubes (1, 3), and a third tube (4) sliding in the second tube. The third tube has a head comprising a fork (5), and a base comprising a bore (8) to receive a pin. The first tube is introduced around a cylinder of a fork of a shoring tower. The third tube supports a post of a balustrade. Two flanges (7) are welded at ends of the first tube, where outer diameter of the flanges is larger than diameter of the cylinder.</p> |
