| 摘要 |
<p>A device for locking covering plates to the anchoring means of the walls to be covered is composed of one or more self-locking anti-unscrewing elastic washers (4) that are placed one on top of the other and can be inserted into a cylindrical blind hole (6) that is made in covering plate (5) and is equipped with units (1) which are coaxial with it and are able to connect it to the anchoring means, the tabs of said washers (4), when subjected to axial traction, bend and push radially against the walls of the cylindrical blind hole, thus keeping them from unscrewing. <IMAGE></p> |
