Dishwasher and drainage system and drainage method thereof

• Main Author: LIU RICHAO
• Format: Patent
• Language: Chinese; English
• Published: 08.11.2019
• Subjects: COFFEE MILLS; DOMESTIC ARTICLES OR APPLIANCES; DOMESTIC WASHING OR CLEANING; FURNITURE; HUMAN NECESSITIES; SPICE MILLS; SUCTION CLEANERS IN GENERAL

The invention discloses a drainage system, a drainage method and a dishwasher. The drainage system is used for the dishwasher and comprises a first drainage assembly and a second drainage assembly. The first drainage assembly comprises a water cup, a drainage pump and a first drainage pipe. An inlet of the drainage pump is communicated with the bottom of the water cup, and one end of the first drainage pipe is communicated with an outlet of the drainage pump. The second drainage assembly comprises a water inlet pipe, a second drainage pipe, a third drainage pipe and an injection pipe. The injection pipe comprises a water inlet end, a water outlet end and an injection end. The water inlet end is communicated with a water supply system through the water inlet pipe. The injection end is communicated with a pump cavity of the drainage pump through the second drainage pipe. The water outlet end is communicated with one end of the third drainage pipe. When the drainage system is applied to the dishwasher, the drain