Hand-held liquid medium fire extinguishing system detector

The utility model relates to the technical field of detectors, in particular to a handheld liquid medium fire extinguishing system detector which comprises a box body, the box body comprises a protective shell, and a sliding groove is formed in the inner side surface of the protective shell. According to the utility model, through cooperation of a silica gel pad, a fixing groove, a first spring column, a movable shaft, a second spring column, a fixing rod, a tension spring column, a torsion spring, a sealing plate, a pulley, an abutting spring column, an electric shock rod, a connecting plate and an arc-shaped plate, the detection device is movably connected to the inner side of the protection shell, so that the protection capability of the detection device is effectively improved, and the device is prevented from being damaged when falling off. And the sealing performance of the device is effectively improved, it is guaranteed that when the device is not used, a detection part connected to the surface of the