FIELD: vending machines.
SUBSTANCE: invention relates to water vending machines, i.e. to machines for selling water by automatically controlled water supply from a water reservoir inside the body of the machine into the container of a water buyer. The technical problem consists in the need for a hydraulic system for water vending machines which is characterized by low noise, low electricity consumption, a long period of operation of the pump without technical maintenance, electrical safety, simplicity of ensuring the necessary water sterility. The technical result consists in creating a new integral property of the hydraulic system which consists in forming a hydraulic closure during the operation of the hydraulic system in a pipeline which connects the water reservoir to the pouring chamber in which during the operation of the hydraulic system a centrifugal pump with a «wet» rotor is loaded, the working wheel of which is driven by a drive with a low (safe) power supply voltage. The hydraulic system for water vending machines comprises water reservoir 1 with inlet pipe 2 for filling the water reservoir with water, outlet pipe 3 for supplying water to the container of the water buyer and funnel (cone) bottom 4. Water reservoir 1 comprises protective tube 5 for placing a bactericidal ultraviolet radiation lamp therein. The hydraulic system also comprises chamber 6 for pouring water with pipe 7 for pouring water into the container of the buyer of water, U-shaped pipeline 8 for supplying water from water reservoir 1 to chamber 6, centrifugal pump 9 with a «wet» rotor and direct current electric drive (submersible pump), and shutoff element 10.
EFFECT: technical result consists in creating a new integral property of the hydraulic system.
3 cl, 4 dwg
