WATER-SAVING TOILET Russian patent published in 2018 - IPC E03D5/10 

FIELD: sanitary equipment.

SUBSTANCE: group of inventions relates to sanitary equipment. Water-saving system according to the first embodiment comprises a first radiator with a first emitter with first wavelength (λ1), second emitter with second wavelength (λ2), at least one detector (30, 31), wherein emitters (21, 22) and detector (30, 31) are configured to be mounted on toilet (1) such that the first beam and the second beam pass through the water present in toilet bowl (2) before being received by the detectors. System further comprises controller (8) for receiving and processing data from detector (30, 31), flush volume control device (10) First and second wavelengths (λ1, λ2) are different from each other, and λ1 is in the range from 300 to 495 nm, and λ2 is in the range from 590 to 900 nm. Toilet bowl comprises bowl (2), receiving part (3), water supply device (7), the above-described water-saving system. Control device (10) is designed for flushing a variable volume of water from water supply device (7). Method for controlling the volume of toilet flush water (1), depending on the level of waste in toilet bowl (2) for saving water includes steps of emitting a first beam with first wavelength (λ1), emitting a second beam with second wavelength (λ2), detecting the first and second beams after they pass through the water contained in toilet bowl (2), receiving and processing the data, said data being an indication of the level of waste in toilet bowl (2), controlling the flush water volume depending on said data. Water-saving system according to the second embodiment comprises an ultraviolet radiation emitter for emitting UV radiation, passing through the wet portion of the toilet bowl, a UV detector for detecting said UV radiation, said UV radiation varying depending on the concentration of urine, a solid detector for detecting a solid within said toilet bowl, a controller for receiving and processing data from said UV detector and said solid detector, and a flush volume control device operated by said controller to flush the variable water volume depending on said data. Combined data from the UV detector and solid detector make it possible to minimise said water volume. Method for modifying a toilet bowl for water saving includes steps of making one or more openings in a toilet bowl, sealing to said one or more openings on the outside of the toilet bowl a UV radiation emitter, a UV detector and an IR detector for detecting contaminants in said toilet bowl, providing a controller for receiving and processing data from said UV and IR detectors, and providing presence of a flush volume control device controlled by the controller. Method of making a toilet bowl includes a step of forming a ceramic toilet bowl on which there are at least two opposing and aligned recesses with an open end extending in an outward direction to receive the UV emitter, a UV detector and an IR detector. Water-saving system according to the third embodiment comprises a UV radiation emitter, a UV detector, a controller for receiving and processing data from said UV detector and a flush volume control device, driven by said controller to flush the variable water volume depending on said data, so as to minimise said water volume. Water-saving system according to the fourth embodiment comprises an IR emitter, an IR detector, a controller for receiving and processing data from said IR detector, and a flush volume control device driven by said controller for flushing a variable water depending on said data, so as to minimise said water volume.

EFFECT: effective water-saving system is provided.

47 cl, 12 dwg