The invention discloses a
water level alarm for emergency risk disposal and an alarm method. The
water level alarm comprises a protective shell, a battery, an alarm
assembly, a contact piece and a foam
buoy. A bionic bottom plate is arranged below the protective shell, a hollow area is arranged in the bionic bottom plate, and the hollow area is communicated with the protective shell; a
buoy is arranged on the bionic bottom plate, and the contact piece is fixed to the
buoy. The alarm
assembly comprises a
buzzer and a display lamp unit. And the leads are reserved at the tails of the battery andthe display lamp unit. And an umbrella stand-shaped structure similar to the shape of the Wanglian leaf is arranged in the interlayer of the bionic bottom plate. When water enters the protective shellthrough the hollowed-out part on the bionic bottom plate, the foam buoy rises along with the
water level; after the water level reaches the set height, the contact head of the wire makes contact withthe contact piece, the
buzzer gives an alarm, and the display lamps are sequentially lightened. The problems that an existing movable water level alarm is unstable and prone to shaking in water, theaccuracy of a monitoring result is affected, and
rollover is prone to happening when the movable water level alarm is impacted are solved, and the movable water level alarm has high practicability.