Washing box anti-overflow device and washing machine

Abstract

The invention provides a washing box anti-overflow device and a washing machine. The washing box anti-overflow device comprises a washing box, a water inlet pipe, an outer drum and a water discharge pipe in sequential communication. The washing box anti-overflow device also comprises a flow guide pipe assembly; the flow guide pipe assembly communicates between the washing box and the water discharge pipe; and the flow guide pipe assembly communicates between the water inlet pipe and the water discharge pipe. The washing machine comprises the washing box anti-overflow device. The internal pressure of the washing box is atmospheric pressure. Through such arrangement, the problem of air pressure abnormality of the water discharge pipe can be solved. Water in the washing box gradually enters the flow guide pipe assembly from the water inlet pipe, and finally flows out from the water discharge pipe; in the process, foam in the water inlet pipe and the water discharge pipe is gradually eliminated and taken away by the water flow; the internal pressure of the water inlet pipe and the internal pressure of the water discharge pipe tend to normal change; the amount of the water flow enteringthe inner drum through the water inlet pipe gradually rises back to eliminate the foam in the drum, and the air pressure in the washing box, the water inlet pipe, the drum and the water discharge pipe recovers to a normal state; at the moment, the foam in the drum can be effectively eliminated when water is continuously supplemented; and the water overflow problem of the washing box cannot occuragain.

Description

technical field [0001] The invention relates to the technical field of washing machines, in particular to a washing box overflow prevention device and a washing machine. Background technique [0002] The existing drum washing machine has a washing box, a water inlet pipe, a drum and a drain pipe connected in sequence, and the drum includes an outer drum and an inner drum positioned in the outer drum. When the washing machine is working, the incoming water first reaches the washing box, and then enters the drum through the water inlet pipe. When the user puts in too much washing powder or washing liquid, a large amount of foam will be generated in the drum during the washing process, and the foam will accumulate at the water inlet pipe to make the internal pressure of the drum abnormal; when the liquid level sensor detects that the pressure in the drum is abnormal, the washing machine will Enter the defoaming mode and pour plenty of water to remove and bring out the foam. ...

AI Technical Summary

Problems solved by technology

[0004] The existing problem of this type of washing machine is that when the drum is filled with foam, the foam not only blocks the water inlet pipe, but also the exhaust pipe and drain pipe are filled with foam and the air pressure is abnormal. At this time, the exhaust pipe and drain pipe fail, and the water flow remains It is difficult to enter the tub through the water inlet pipe, and the overflow problem at the washing box has not been solved

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