| 摘要 |
<p>The cover device is for an aperture in an underground pipe conduit or an underground container. It comprises an insert arrangement and a cover (20) for closing the insert arrangement. The cover has an edge on its under side. The insert arrangement comprises a primary insert (10) consisting of an aperture (11) in the upper side for accommodation of an edge (21) of the cover (20). It also has a second aperture (13). At least one secondary insert (30) is provided, which has a first aperture (31) in the upper side for accommodation of the edge of the cover. It has a second aperture (33) and an edge (34) on the under side for introduction in the second apertures (13,33) of the first insert. A further secondary insert (30) is provided, which can be made available between the cover and the primary insert, so that the height of the cover, when necessary, can be adjusted.</p> |
