Patent ID: 8109482

Claim:
A sprinkler mounting device comprising: T-shaped frames each including a projecting jaw portion formed on an upper portion thereof and formed by a sidewall having a slot; support units, each including: a vertical body; a horizontal plane portion bent to one side and formed at an upper portion of the vertical body; a first screw hole formed on the horizontal plane portion; a fastening screw joined to the support unit and a support bar through the first screw hole and having a tip portion penetrating the support bar; support portions projecting from the horizontal plane portion; a pressurizing member having both end portions, which are axially mounted to the support portions, the pressurizing member having pressure portions pressing the support bar when the pressurizing member is laid down; a rectangular hole formed beneath the horizontal plane portion for allowing an insertion of the support bar; an elastic member having upper portions hingedly joined to a central portion of the vertical body and a bent portion formed on a lower portion thereof to clamp a lower end of the projecting jaw portion; a joining portion formed on a lower portion of the vertical body for fixing the projecting jaw portion thereinto; a second screw hole formed on the joining portion; and a fastening screw joined to the support unit and the T-shaped frame through the second screw hole and having a sharp tip portion penetrating the projecting jaw portion; the support bar being of a rectangular section, whose both end portions are fit into the rectangular holes of the support units, the support bar crossing the T-shaped frames; and a mounting bracket including: a body having a mounting portion for fitting a reducer thereto from a front; a rotating member having one side axially mounted on the front of the body for opening and closing the mounting portion and an other side having a groove; a fastening member to which the groove is fit; restricting jaw portions formed on both sides of a rear part of the mounting portion in such a way as to be bent upwardly for supporting the support bar; a first tightening screw mounted on an upper portion of a rear part of the body for tightening the support bar; and a second tightening screw joined to a center of the rotating member for closely contacting the reducer to the support bar.