Patent ID: 8474199

Claim:
A sprinkler mounting device comprising: a pair of T-shaped frames mounted on a ceiling parallel with each other at a predetermined interval; a pair of support units perpendicularly standing and joined to the T-shaped frames; a support bar disposed on upper portions of the support units in such a way as to cross the T-shaped frames; and a mounting bracket including: upper and lower plates, each of the upper and lower plates having an open portion facing one of the pair of T-shaped frames, and a mounting space portion communicatively formed with the open portion; so that a reducer can be inserted thereinto from a side and through the open portion into the mounting space portion; a retaining jaw portion formed between the open portion and the mounting space portion; an insertion portion formed by a C-shaped plate for positioning the upper and lower plates parallel, the insertion portion having a height corresponding to that of the support bar; cut portions formed at both sides of a rear part of the lower plate; an elastically bent portion of the cut portions having front and rear inclined faces; and a tightening screw fastened to a screw hole formed on a vertical face located on an opposite side of the insertion portion for tightening against the support bar and pulling the mounting bracket backward while moving the support bar into engagement with the elastically bent portion of the cut portions.