Water inlet system of washing machine and washing machine

Abstract

A water inlet system for a washing machine is disclosed, comprising a first barrel for accommodating clothes and an exhaust pipeline connected to the first barrel. A first water inlet pipe is configured such that its water outlet communicates with the exhaust pipeline, enabling reverse flushing of foam overflowing from the first barrel back into the barrel. In some embodiments, a second water inlet pipe communicates with the water inlet of the first barrel, and the first water inlet pipe is further connected to the second water inlet pipe via a three-way valve. The system may also include a second barrel, forming a double-drum washing machine configuration, with additional water inlet pipes for each barrel and a water inlet box with multiple water paths for controlled distribution of water and detergent.

What is claimed is: 
     
         1 . A water inlet system of a washing machine, comprising:
 a first barrel for accommodating clothes, wherein the first barrel is provided with an exhaust pipeline; and   a first water inlet pipe, wherein a water outlet of the first water inlet pipe is communicated with the exhaust pipeline, and the first water inlet pipe is configured to reversely flush foam overflowing from the first barrel into the exhaust pipeline back into the first barrel.   
     
     
         2 . The water inlet system of the washing machine according to  claim 1 , wherein the water inlet system of the washing machine further comprises a second water inlet pipe, a water outlet of the second water inlet pipe is communicated with a water inlet of the first barrel, and a water inlet of the first water inlet pipe is communicated with the second water inlet pipe. 
     
     
         3 . The water inlet system of the washing machine according to  claim 2 , wherein a three-way valve is provided on the second water inlet pipe, and the water inlet of the first water inlet pipe is communicated with the three-way valve. 
     
     
         4 . The water inlet system of the washing machine according to  claim 2 , wherein the water inlet system of the washing machine further comprises a second barrel, and a barrel diameter of the first barrel is smaller than a barrel diameter of the second barrel. 
     
     
         5 . The water inlet system of the washing machine according to  claim 4 , wherein the exhaust pipeline is located on a side portion of the first barrel. 
     
     
         6 . The water inlet system of the washing machine according to  claim 4 , wherein the water inlet system of the washing machine further comprises a third water inlet pipe, and a water outlet of the third water inlet pipe is communicated with a water inlet of the second barrel. 
     
     
         7 . The water inlet system of the washing machine according to  claim 6 , wherein the water inlet system of the washing machine further comprises a water inlet box, an inlet of the water inlet box is communicated with a water inlet valve through a pipeline, and water inlets of the second water inlet pipe and the third water inlet pipe are respectively communicated with an outlet of the water inlet box. 
     
     
         8 . The water inlet system of the washing machine according to  claim 7 , wherein the water inlet box is provided with a first water path communicated with the water inlet valve, a second water path communicated with the first barrel, and a third water path communicated with the second barrel. 
     
     
         9 . The water inlet system of the washing machine according to  claim 8 , wherein the water inlet box is provided with a first water inlet interface and a first water outlet interface communicated with the first water path, a second water inlet interface and a second water outlet interface communicated with the second water path, and a third water inlet interface and a third water outlet interface communicated with the third water path, wherein:
 the first water inlet interface is suitable for communicating with the water inlet valve, the first water outlet interface is suitable for communicating with a dispensing box for accommodating laundry detergent, the second water inlet interface and the third water inlet interface are suitable for communicating with the dispensing box, the second water outlet interface is suitable for communicating with the first barrel, and the third water outlet interface is suitable for communicating with the second barrel.   
     
     
         10 . The water inlet system of the washing machine according to  claim 1 , wherein a water guide structure is provided in the exhaust pipeline for at least partially guiding water discharged from the first water inlet pipe into the first barrel, and/or the exhaust pipeline is provided obliquely and a lower end of the exhaust pipeline is located at a side of the first barrel. 
     
     
         11 . The water inlet system of the washing machine according to  claim 1 , wherein the water outlet of the first water inlet pipe is arranged toward the first barrel. 
     
     
         12 . The water inlet system of the washing machine according to  claim 1 , further comprising a drainage and ventilation box, wherein the drainage and ventilation box comprises a shell, and a ventilation cavity and a drainage cavity that are independent and separated from each other and arranged inside the shell, and the exhaust pipeline and the water outlet of the first water inlet pipe are respectively communicated with the ventilation cavity. 
     
     
         13 . The water inlet system of the washing machine according to  claim 12 , wherein the shell is provided with an air inlet, a first water inlet pipe interface and an air outlet that are respectively communicated with the ventilation cavity, wherein the air outlet is communicated with an external environment, the air inlet is communicated with the exhaust pipeline, the first water inlet pipe interface is communicated with the first water inlet pipe, and water discharged from the first water inlet pipe interface can be reversely flushed back into the first barrel through the air inlet. 
     
     
         14 . The water inlet system of the washing machine according to  claim 13 , wherein the ventilation cavity comprises a first ventilation chamber and a second ventilation chamber that are communicated with each other, wherein the first ventilation chamber is communicated with the air outlet, the second ventilation chamber is communicated with the air inlet and the first water inlet pipe interface respectively, and the second ventilation chamber is formed by extending downward from a side portion of the first ventilation chamber. 
     
     
         15 . The water inlet system of the washing machine according to  claim 12 , wherein the shell is provided with a first water inlet, a second water inlet and a drain, and the drainage cavity is provided with a first drainage channel and a second drainage channel that are communicated with each other;
 an upstream end of the first drainage channel is communicated with the first water inlet, and a downstream end of the first drainage channel is communicated with the drain;   an upstream end of the second drainage channel is communicated with the second water inlet, and a downstream end of the second drainage channel is communicated with the downstream end of the first drainage channel and is communicated with the drain.   
     
     
         16 . The water inlet system of the washing machine according to  claim 15 , wherein the first drainage channel comprises a first channel section and a second channel section;
 an upstream end of the first channel section is communicated with the first water inlet, a downstream end of the first channel section is communicated with an upstream end of the second channel section, and a downstream end of the second channel section is communicated with the drain;   the downstream end of the second drainage channel is communicated with the downstream end of the second channel section and is communicated with the drain.   
     
     
         17 . A washing machine, comprising:
 a water inlet system, wherein the water inlet system comprises:   a first barrel for accommodating clothes, wherein the first barrel is provided with an exhaust pipeline; and   a first water inlet pipe, wherein a water outlet of the first water inlet pipe is communicated with the exhaust pipeline, and is capable of reversely flushing foam overflowing from the first barrel into the exhaust pipeline back into the first barrel.   
     
     
         18 . The washing machine according to  claim 17 , wherein the washing machine is a double-drum washing machine, and the first barrel is a small barrel. 
     
     
         19 . The washing machine according to  claim 17 , wherein the water inlet system of the washing machine further comprises a second water inlet pipe, a water outlet of the second water inlet pipe is communicated with a water inlet of the first barrel, and a water inlet of the first water inlet pipe is communicated with the second water inlet pipe. 
     
     
         20 . The washing machine according to  claim 19 , wherein a three-way valve is provided on the second water inlet pipe, and the water inlet of the first water inlet pipe is communicated with the three-way valve.