Filtering device

Abstract

A filtering device is used for solving the problem that the pore density of a filter element of an existing filtering device cannot be adjusted. The utility model relates to a shaft tube assembly, which comprises a base provided with a shaft tube, the shaft tube is combined with the base through a closed end, the other end of the shaft tube forms an open end, the open end is provided with an opening, the shaft tube is provided with a plurality of through holes between the open end and the closed end, and each through hole penetrates through the tube wall of the shaft tube; the filter element is provided with a plurality of filter units, the filter element is provided with a first end and a second end which are opposite to each other, and the filter element is fixed on one surface of the base through the second end; the cover plate is provided with a through hole, the cover plate is annularly arranged on the outer surface of the shaft tube through the through hole and can rotate relative to the shaft tube, and one surface of the cover plate is combined with the first end of the filter element.

Description

technical field [0001] The present invention relates to a filter device, especially a filter device whose pore density can be changed. Background technique [0002] Generally, the filter layer of the filter device has a fixed pore size to prevent impurities with a particle size larger than the pore in the water from passing through, but impurities with a smaller particle size will pass through the pore together with the water. In the existing filtering device, the water to be filtered needs to pass through multiple filter layers with pores from large to small in order to filter out the impurities in the water step by step. If the water to be filtered directly passes through the filter layer with smaller pores The filter layer, too large debris will soon cause the filter layer to be blocked, and reduce the service life of the filter layer. [0003] However, the water quality varies from region to region, and the pollutants and impurities contained in the water in different r...

AI Technical Summary

Problems solved by technology

In the existing filtering device, the water to be filtered needs to pass through multiple filter layers with pores from large to small in order to filter out the impurities in the water step by step. If the water to be filtered directly passes through the filter layer with smaller pores Filter layer, too large debris will soon cause the filter layer to block, and reduce the service life of the filter layer

[0003] However, the water quality varies from region to region, and the pollutants and impurities contained in the water in different regions are also different. If the same multiple filter layers are used to filter the water in various regions, it may lead to the filtration of impurities in the water in some regions Incomplete, or the situation that reduces the service life of the filter device

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