Hole-opening positioning device for fire-fighting spray header in suspended ceiling

The invention relates to a drilling and positioning device for a fire-fighting spray header in a suspended ceiling. The drilling and positioning device comprises a screw thread, a main body, an infrared lamp switch and an infrared lamp holder, an infrared emitting device and a battery are arranged in the main body, an infrared lamp switch is arranged on the side edge of the main body, and an infrared lamp holder is arranged at the lower end of the main body. The device is convenient to use, the working efficiency of workers is greatly improved, fire-fighting spraying trepanning is accurate, and the mounting effect of a fire-fighting spraying head is standard and attractive. 本发明涉及一种吊顶内消防喷淋头开孔定位装置，包括：丝扣、主体、红外线灯开关、红外线灯头；所述丝扣下面是装置主体，主体内含红外线发射装置和电池，主体侧边有红外线灯开关，主体下端是红外线灯头。本发明使用方便，大大提高工作人员工作效率，消防喷淋开孔准确，消防喷淋头安装效果规范美观。