| 摘要 |
A mounting ring is suited for installation in an opening in a wall or ceiling to provide support thereat for a device, such as a sensor. The ring includes an annular frame with a pair of deformable retaining tabs extending therefrom for manual deformation into retaining engagement with the inner surface of the wall or ceiling. Centering tabs may aid in centering the ring about the opening. One or more antirotation tabs may extend from the frame into the wall or ceiling to prevent rotation of the mounting ring. One or more support tabs on the frame are sized and positioned to longitudinally support a tubular device extending within the opening in the ceiling or wall. The device may be provided with a complementary supporting surface or shoulder. Conveniently, the device is rotated about its longitudinal axis to bring its supporting surface into supported alignment with that of the mounting ring. Such rotation may also serve, via the mounting ring support tab, to urge the device into engagement with the wall or ceiling. Detents may be provided on the mounting ring to interact with the device and inhibit rotation of the device out of supported engagement with the mounting ring. |
