| 主权项 |
1. A bracket for fixing a fire-fighting sprinkler including end brackets mounted to both end portions of a support frame to fix the support frame to a ceiling and a center bracket to fix the fire-fighting sprinkler to the support frame, wherein
the center bracket includes an opened side portion, a hinge pin and a locking part coupled to the hinge pin and configured to pivot about the hinge pin, the locking part including a cam lever and a cam protrusion having an eccentric axis, whereby the sprinkler fitted in the center bracket is directly pressurized and clamped by the cam protrusion by pivoting the locking part about the hinge pin while keeping the opened side portion opened, wherein the cam protrusion is formed at one end portion of the cam lever, and the locking part further includes one of a ball bearing and a roller bearing which is rotatably coupled to a hinge pin mounted to an edge portion of the cam protrusion, whereby as the locking part pivots, the sprinkler is pressurized and clamped by the ball bearing or the roller bearing which rotates about the hinge pin. |
