Quantitative brine feeding device

The utility model discloses a brine quantitative feeding device, which belongs to the technical field of brine, and comprises a loading box, a buffer pipe positioned below the loading box and a U-shaped plate positioned below the loading box, the outer side of the loading box is fixedly communicated with a connecting pipe fixedly communicated with the outer side of the buffer pipe, and a first electromagnetic valve is mounted in the connecting pipe. According to the quantitative brine feeding device, the amount of brine needing to be fed into soybean milk is determined according to the amount of the soybean milk in the containing cylinder and the proportion, then a first threaded rod is rotated to drive a switch to move, the switch is made to horizontally coincide with a needed metering scale line on a calibrated scale, and a first electromagnetic valve is opened; the brine enters the buffer pipe to drive the floating plate to move upwards to touch the switch, so that the first electromagnetic valve is closed