Pipeline switching device, washing machine backwater switching method and washing machine

Abstract

The invention relates to the technical field of washing machines, and discloses a pipeline switching device, a backwater drain switching method of a washing machine, and a washing machine. The pipeline switching device includes a bracket and a pipe clamp. The bracket includes a first plate body and a second plate body arranged at intervals. The pipe clamp is arranged between the first plate body and the second plate body to form a first plate between the three. The pipeline passes through the space and the second pipeline passes through the space. The pipe clamp can move towards the first plate under the action of external force; the pipe clamp can move towards the second plate under the action of external force. When applied to a washing machine, there is no need to install a special drain pump with a reflux pump in the prior art. The washing water can be returned by a common drain pump, and the water flow in the washing chamber can be disturbed by the return water to accelerate the dissolution of the detergent and increase the rubbing of the clothes. , Through the disturbance of the water flow to increase the contact with the air, so that the water correspondingly increases the air content. It can keep the surface of the inner diameter of the return and drain pipe of the washing machine smooth, avoid being blocked by dander, and reduce production costs.

Description

technical field [0001] The invention relates to the technical field of washing machines, in particular to a pipeline switching device, a washing machine backwater switching method and a method. Background technique [0002] At present, with the improvement of people's quality of life, the penetration rate of washing machines is getting higher and higher. For example, washing machines on the market are mainly divided into two types: pulsator washing machines and drum washing machines. [0003] For example, in order to speed up the dissolution of detergent and increase the cleaning ratio, and reduce the wear on the surface of the clothes and the metal inner cylinder, the current drum washing machine usually uses the drain pump to drain and return, that is, the drain pump will be activated during the washing process. However, the drainage is not discharged, but is returned to the washing chamber through the return device after being discharged by the drainage pump, so as to in...

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Problems solved by technology

[0004] Although the above-mentioned methods can realize the backflow of drainage, there will be some shortcomings in actual use. Since it is necessary to use a special drainage pump with an additional backflow pump or set a reversing device inside the drainage pump, such a backflow method The cost is high, the structure is complex, and it is prone to failure. For example, when a reversing device such as a reversing vane is installed inside the drainage pump, the reversing device is usually relatively fine due to the limited internal space of the drainage pump, which is easy to cause Fur piles up to block or make the reversing device not tightly closed, so that part of the washing water is discharged to the outside of the washing machine during the process of draining and returning, resulting in waste of washing water, which is usually not easy to be noticed by users

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