The utility model belongs to the technical field of alarms, and discloses an alarm patch device, which comprises a support frame, a PCB (
printed circuit board) mounting plate is fixedly connected inside the support frame, a power supply
assembly and a
buzzer are welded on the PCB mounting plate, a wire is fixedly connected to the bottom of the
buzzer, and the power supply
assembly is connected with the wire. The end, away from the
buzzer, of the
electric wire is fixedly connected with a conductive socket, and a sliding rail is arranged at the bottom of the supporting frame. By arranging a buzzer, a cylindrical
cam and clamping blocks, the problems that falling of a rubber tube is inconvenient to monitor, and danger is caused to a patient are solved, the cylindrical
cam drives the clamping blocks to slide in a sliding groove when rotating, so that the two clamping blocks move in opposite directions, and when the patient pulls the rubber tube, the clamping blocks are driven to slide in the sliding groove, so that the clamping blocks move in the sliding groove. At the moment, the rubber
pipe drives the outer box to slide on the sliding rail, and then the buzzer is powered on through the
electric wire, so that the buzzer gives an alarm, and the effect of monitoring the hose is achieved.