Fully automatic washing machine drainage device and washing machine

Abstract

The invention discloses a fully automatic washing machine drainage device. The drainage device includes a drainage structure. The drainage device also includes an overflow structure in which a water inlet communicates with a water inlet pipe of the drainage device. An overflow valve plug controlled by a valve spring is arranged in the overflow structure. When a water level in a washing machine ishigher than an overflow line, the overflow valve plug is opened and drains against the spring force of the valve spring under the action of water pressure. When the water level of the washing machineis lower than the overflow line, the overflow structure is closed under the spring force of the valve spring. The overflow structure is directly arranged in the water inlet pipe of the drainage device. The overflow structure does not occupy the inner space of a washing machine shell, increases the utilization rate of the inner space of the washing machine, and can increase the washing capacity ofthe washing machine without changing the shell and an outer barrel. Moreover, water pressure caused by the water level is used to open or close the overflow structure to realize automatic drainage ofthe overflow structure. Furthermore, the components of the overflow structure do not need glue for fixing so as to avoid water leakage.

Description

technical field [0001] The invention relates to the technical field of household appliances, in particular to a washing machine with the drainage device for a fully automatic washing machine and the drainage device. Background technique [0002] An overflow port is provided in the existing fully automatic washing machine outer tub structure, and when the water level in the washing machine outer tub exceeds the overflow port, excess water enters the drain valve through the overflow pipe and is directly discharged. [0003] For example, Chinese patent document CN203878373U discloses a fully automatic washing machine drain valve, wherein the upper part of the overflow pipe is connected to the bucket, the lower part is connected to the short drain pipe, the short drain pipe is connected to the drain hose, and the overflow pipe Installed on the right side of the bucket; when the water level of the bucket exceeds the uppermost position of the overflow pipe, the washing liquid will...

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Problems solved by technology

[0004] In the above-mentioned patent documents, when the drain valve of the fully automatic washing machine fails to work normally, the water or washing liquid in the bucket will accumulate more and more, and the water level will become higher and higher. At the uppermost position, the water or washing liquid is discharged to the outside of the machine through the overflow pipe to the drain hose to realize drainage; but there are the following disadvantages: 1. The overflow pipe set in this way occupies the inner space of the washing machine shell, and at the same time restricts the water tank of the washing machine The expansion of the capacity and the height of the water level in the bucket ultimately limit the expansion of the washing capacity; 2. At present, the joints between the parts of the overflow structure set up in this way are mainly sealed by applying sealant. Problems such as uneven glue application can easily lead to water leakage

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