Public toilet automatic flush tank leaking

Theoretically, it is possible, when someone approaches, a relay signal output is triggered, and an external siren horn can be connected. But I don't know if you've noticed, that thing's sensing distance is very limited, is there twenty centimeters? It is not practical, and the sensing distance of infrared probes on the market is at least about ten meters.

The principle of automatic flushing of toilets:

There is a float valve inside, as the water level in the tank rises, the buoyancy generated by the float increases, and when the water level rises to a predetermined value, the buoyancy generated by the float will be transmitted to the plug that discharges the water through a seesaw structure, and the plug can be automatically pulled up as long as the drain button is pressed. After the water is discharged, the plug automatically returns to its position under the action of the spring and enters the next round of water filling cycle. >>>More

Hello! Go outside and get a basin to fetch water.

Yes, that's what I do, you can find the local sanitation bureau, and if there are fewer machines, go directly to the administrator, and give some delicious food.

It may be that the downtown area has a large flow of people, so if you use an automatic flushing device. It's more cost-effective, some. In places with fewer people, using this device may consume more power.