Hopper alarm for tip lorry

The utility model belongs to a hopper alarm for tip lorry. A controller is arranged at a hopper of the tip lorry , the controller K1 is a mechanical switch, an upper support plate and a lower support plate are arranged in a machine shell, a pressure spring is arranged between the upper support plate and the lower support plate and a carrier rod is connected with the controller below via the machine shell and the upper support plate; a power positive pole goes through a resistor R1, a ZD indicating lamp, a RD fuse, a switch K and a negative plate via the controller k1to form a loop to light an indicating lamp. The power positive pole goes through a resistor R2 via the controller k1, provides table voltage to a circuit of a buzzer YD or a voice device DF via a stabilivolt D, and goes through a RD fuse, the power switch K and a negative pole to form a loop to enable the buzzer YD or the voice device DF of the alarming system to alarm. The device has the advantages of a simple structure, low cost, safety and reliability and strong practicability.