| 摘要 |
<p>The anchor has anchor bars (4) fastened at a joint retaining plate (6) by joints (5) on a side, and provided in an interior of a cylindrical sleeve (1). The sleeve is fixedly connected with a tip (2), and includes peripheral outlet openings (3) such that the bars widely escape through the openings by external application of force on the joint retaining plate in a longitudinal direction of the tip till the bars form a right angle to a longitudinal axis of the sleeve. A fixed connection is obtained between the sleeve and the bars. The openings are closed by sanitary silicone.</p> |
