Ceiling inspection opening

Abstract

This article is an inspection opening in the ceiling space for inspecting the ceiling space, which is fixed by clamping by rotating a wing nut with respect to a through-hole provided in the ceiling board of a building. The wing nut of this article can be accommodated by simply changing the tightening allowance even if the thickness of the ceiling board is different, and since an anti-slip is provided at the clamping portion, it is stably fixed. By inserting a camera from below, the lid opens and it is possible to photograph and monitor all directions of the ceiling space (see the reference drawing showing the usage state).

Images