Water-saving washing machine and control method
First Claim
1. A water-saving washing machine, comprising a washing drum and an outer drum, wherein a circulating pipeline is arranged between an outer drum drainage outlet and an outer drum water inlet, a drainage pump and a main filter are arranged on the circulating pipeline, a pre-filter is further arranged on the circulating pipeline, the pre-filter is located between the drainage pump and the main filter, and a compactness of a filter screen of the pre-filter is lower than that of a filter screen of the main filter;
- wherein the pre-filter is provided with a first inlet, the first inlet is connected to an air pump through a pipeline, and the pipeline between the air pump and the first inlet is further provided with a check valve for controlling airflow to flow from the air pump to the pre-filter;
wherein the pre-filter is provided with an aeration device positioned between the first inlet and the filter screen of the pre-filter, the aeration device is a flat plate that fits to the pre-filter in cross-section shape, and the flat plate is evenly provided with a plurality of air holes.
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Abstract
A water-saving washing machine and a control method are provided. The washing machine includes a washing drum and an outer drum, where a circulating pipeline is arranged between an outer drum drainage outlet and an outer drum water inlet, a drainage pump and a main filter are arranged on the circulating pipeline, a pre-filter is further arranged on the circulating pipeline, the pre-filter is located between the drainage pump and the main filter, and a compactness of a filter screen of the pre-filter is lower than that of a filter screen of the main filter.
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Citations
15 Claims
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1. A water-saving washing machine, comprising a washing drum and an outer drum, wherein a circulating pipeline is arranged between an outer drum drainage outlet and an outer drum water inlet, a drainage pump and a main filter are arranged on the circulating pipeline, a pre-filter is further arranged on the circulating pipeline, the pre-filter is located between the drainage pump and the main filter, and a compactness of a filter screen of the pre-filter is lower than that of a filter screen of the main filter;
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wherein the pre-filter is provided with a first inlet, the first inlet is connected to an air pump through a pipeline, and the pipeline between the air pump and the first inlet is further provided with a check valve for controlling airflow to flow from the air pump to the pre-filter; wherein the pre-filter is provided with an aeration device positioned between the first inlet and the filter screen of the pre-filter, the aeration device is a flat plate that fits to the pre-filter in cross-section shape, and the flat plate is evenly provided with a plurality of air holes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification