Hollow body for electrical installation

摘要

The invention relates to a hollow body for electrical installation. This hollow body has an accommodation space for electrical devices such as lights, boxes, terminals or the like. It is furthermore provided with retaining means to fix it on one boundary of a cavity wall which has insulating material. In this case, the invention relates in particular to the lower boundary of a suspended ceiling with the insulating material located above it. In order to enable simple insertion and accommodation of such a hollow body for electrical installation in the hollow space of a cavity wall, the hollow body has the combination of the following features: a) the hollow body (10) has a rear part (11) which at least partially bounds the accommodation space (14), b) a mounting ring (12) is assigned to the rear part (11), c) the mounting ring (12) is fixed in the region of the boundary wall of an aperture (19) in the covering (16) of the hollow wall, d) the rear part (11) of the hollow body is designed as a screw-in spring (13) which can be screwed into the interior of the hollow wall, through the aperture (19) in the covering (16), to create a free space (18) in the insulating material, e) the space inside the screw-in spring (13) is the accommodation space for the electrical device, f) an electrical device such as a lamp, a terminal, a box or the like can optionally be put into the accommodation space in the rear part (11) through the opening (23) in the mounting ring (12), and ... Original abstract incomplete.