Drainage tube anti-falling automatic alarm device

The utility model relates to a drainage tube anti-drop automatic alarm device, the drainage tube anti-drop automatic alarm device comprises two half shells which are rotatably connected, rotating rods are rotatably connected in the two half shells, one end of each rotating rod is connected with a conductive chuck, and the two conductive chucks contact with each other; an elastic reset device is arranged on the rotating rod, and the other end of the elastic reset device is connected with the inner wall of the half shell; wherein one half shell is provided with a power supply, a control box and a buzzer, and the control box, the buzzer, the power supply and the two conductive chucks are sequentially connected to form a loop. The elastic clamping device is arranged to clamp the drainage tube, once the drainage tube falls off, the two conductive chucks make contact with each other to form a loop, the honey device gives an alarm for reminding, medical staff or accompanying staff can discover and handle the situati