Weak current engineering security monitoring device

The utility model relates to a weak current engineering security monitoring device, which comprises a mounting frame and a cleaning mechanism, and the cleaning mechanism is arranged on one side of the surface of a monitor. According to the weak current engineering security and protection monitor, through the arrangement of the cleaning mechanism, when dust on the surface of a lens of the monitor needs to be cleaned, a spray head is firstly controlled to spray a cleaning agent in a cleaning agent box to the surface of the lens through a conveying pipe, then a third motor is started, the third motor drives a screw rod to rotate at the moment, and a sliding block cannot rotate due to the limitation of a brush; the screw drives the slide block to move along the direction of the screw, and the slide block drives the brush to move, so that the brush cleans the lens, and long-term dust accumulation of the lens is avoided, so that a shot monitoring picture is fuzzy, and the security monitoring effect is influenced. 本