The utility model discloses a water dispenser
system with
backflow pressure relief function, which comprises a filter unit, a
booster pump, a
reverse osmosis membrane group and a drinking device which are communicated in sequence, a three-way
backflow valve is arranged on a water path where the
booster pump is communicated with the filter unit, and a
water flow switch valve is arranged at the
water production end of the
reverse osmosis membrane group. The water inlet end of the
water flow switch valve is provided with a return
pipe communicated with the three-way return valve, and the water outlet end of the
water flow switch valve is intersected with the water inlet end of the drinking water equipment; water at the
water production end is conveyed to the three-way return valve through the return
pipe, so that the
water production end of the
reverse osmosis membrane group is decompressed to avoid frequent starting of the water flow switch valve, and then the water is conveyed to the reverse
osmosis membrane group through the
booster pump. When the
water consumption of the water using end is small, repeated power-on and power-off of the water flow switch valve can be avoided, potential safety hazards of a water dispenser
system are reduced, meanwhile, pressure relief can be achieved at the water producing end, and normal use and the filtering effect of the reverse
osmosis membrane
group function are ensured.