A water draining device of a washing machine, a washing machine and a control method

Abstract

Cleaning particles for cleaning a tub wall of a washing machine are provided between an inner tub and an outer tub. The cleaning particles are collected into a particle collecting chamber when draining water, and float upwards from a water inlet to be between the inner tub and the outer tub of the washing machine during water feeding. A water draining device comprises a drain valve body, a water inlet and a water outlet. The water inlet communicates with an outlet of the outer tub, the valve body has a particle collecting chamber communicating with the water inlet, a particle filtering structure is between the collecting chamber and the water outlet. The draining device further comprises a water/air access mechanism, the collecting chamber has a port in communication with the water/air access mechanism, and the water/air access mechanism controls water or air flow into the collecting chamber.

1 - 20 . (canceled) 
     
     
         21 . A water draining device of a washing machine comprising, a drain valve body, a water inlet and a water outlet, the water inlet being in communication with a water draining outlet of an outer tub of the washing machine, the drain valve body being provided therein with a particle collecting chamber communicating with the water inlet, a particle filtering structure being provided between the particle collecting chamber and the water outlet, wherein:
 the water draining device further comprises a water/air access mechanism for controlling water or air to flow into the particle collecting chamber, the particle collecting chamber is provided therein with a port, the port is communicated with the water/air access mechanism.   
     
     
         22 . The water draining device of the washing machine according to  claim 21 , wherein: the water/air access mechanism is a water inlet valve of the washing machine, the water inlet valve is communicated with the port through a water guide pipe, and the water inlet valve controls to feed water into the particle collecting chamber. 
     
     
         23 . The water draining device of the washing machine according to  claim 21 , wherein: the water/air access mechanism is an air pump, and the air pump is communicated with the port through an air guide pipe, and the air pump controls to blow air into the particle collecting chamber. 
     
     
         24 . The water draining device of the washing machine according to  claim 21 , wherein: a check valve is provided between the port and the water/air access mechanism. 
     
     
         25 . The water draining device of the washing machine according to  claim 21 , wherein: a water flow/air flow direction of the port is set corresponding to a front part of the particle filtering structure. 
     
     
         26 . The water draining device of the washing machine according to  claim 21 , wherein: at least one port is provided, which is provided at an upper or a side or a bottom part of the particle collecting chamber, in communication with the water/air access mechanism through a multi-pass pipe. 
     
     
         27 . The water draining device of a washing machine according to  claim 21 , wherein:
 the water/air access mechanism is a pump device feeding water to the particle collecting chamber.   
     
     
         28 . The water draining device of the washing machine according to  claim 27 , wherein: the pump device comprises a reverse pump, a water outlet of the reverse pump is communicated with the water outlet of the water draining device, and a water inlet of the reverse pump is communicated with a drain pipe of the washing machine. 
     
     
         29 . The water draining device of the washing machine according to  claim 28 , wherein: a drain pump which drains water outward is provided on a rear of the reverse pump, and a water inlet of the drain pump is communicated with the water inlet of the reverse pump, and a water outlet of the drain pump is communicated with the drain pipe of the washing machine. 
     
     
         30 . The water draining device of the washing machine according to  claim 27 , wherein: the pump device comprises a circulating pump, and a water inlet of the circulating pump is communicated with a bottom of an outer tub of the washing machine, and a water outlet of the circulating pump is communicated with the particle collecting chamber. 
     
     
         31 . The water draining device of the washing machine according to  claim 27 , wherein: the pump device comprises a bi-directional drain pump, and the bi-directional drain pump comprises one water inlet and two water outlets, the water inlet is communicated with the water outlet of the water draining device, one water outlet is communicated with a drain pipe of the washing machine and the other water outlet is communicated with the particle collecting chamber. 
     
     
         32 . The water draining device of the washing machine according to  claim 27 , wherein: the pump device comprises a drain pump, a water inlet of the drain pump is communicated with the water outlet of the water draining device, and a water outlet of the drain pump is communicated with a multi-way reversing valve, one water outlet of the multi-way reversing valve is communicated with the particle collecting chamber. 
     
     
         33 . The water draining device of the washing machine according to  claim 31 , wherein: a check valve or a shut-off valve is provided on a waterway connected between the particle collecting chamber and the pump device. 
     
     
         34 . The water draining device of the washing machine according to  claim 32 , wherein: a check valve or a shut-off valve is provided on a waterway connected between the particle collecting chamber and the pump device. 
     
     
         35 . A washing machine with the water draining device according to  claim 21  comprising an inner tub, an outer tub and cleaning particles for cleaning a tub wall being provided between the inner tub and the outer tub, the water draining outlet of the outer tub being communicated with the water draining device below, wherein:
 the cleaning particles are collected into the particle collecting chamber when the water draining device is draining or dehydrating, and float upward from the water inlet to a space between the inner tub and the outer tub of the washing machine under buoyancy force during water feeding. 
 
     
     
         36 . A control method of the washing machine according to  claim 34  comprising that when the washing machine delivers the cleaning particles, the water/air access mechanism intermittently or continuously controls to flow water/air into the particle collecting chamber, the cleaning particles are impacted to move and delivered the space between the inner tub and the outer tub of the washing machine with a feeding water level rising. 
     
     
         37 . The control method according to  claim 36 , wherein: the water/air access mechanism stops working after the water/air access mechanism controls to flow water/air into the particle collecting chamber for a set time, or the outer tub feeds water to a set water level. 
     
     
         38 . The control method of the washing machine according to  claim 36 , wherein: during a draining process, when a reducement of the water level in the outer tub is detected to be smaller than a set value or the water level reduces to a set water level per a unit time, the water/air access mechanism controls to flow water/air into the particle collecting chamber, or, during the draining process, water/air is flowed into the particle collecting chamber at a set time interval. 
     
     
         39 . The control method of the washing machine according to  claim 36 , wherein: during a draining process, the pump device is controls water to be fed into the particle collecting chamber, to scatter the fibre debris wound on the cleaning particles and/or fibre debris groups blocked by the particle filtering structure, in order to drain smoothly. 
     
     
         40 . The control method according to  claim 39 , wherein: during the draining process, when a reducement of a water level in the outer tub is detected to be smaller than a set value or the water level reducing to a set water level per unit time, the pump device controls water to flow into the particle collecting chamber, or, during the draining process, the pump device controls water to be fed into the particle collecting chamber at a set time interval.