Filtering device and using method thereof

Abstract

The invention provides a filtering device and a using method thereof, and belongs to the field of air purifiers, solving a problem that an existing air purifier filtering device is not convenient forusers to replace. The filtering device comprises an upper connecting ring, a lower connecting ring, inner connecting rods whose bottom ends are hinged to inner hinge parts through inner hinge shafts,outer connecting rods whose bottom ends are hinged to outer hinge parts through outer hinge shafts, and filter paper. The top surface of the lower connecting ring is provided with a plurality of innerhinge parts and outer hinge parts, a plurality of inner connecting grooves and outer connecting grooves are formed in the bottom surface of the upper connecting ring, a plurality of inner guiding grooves and outer guiding grooves are formed in the bottom surface of the upper connecting ring, positioning rods are fixed on the top surface of the lower connecting ring, positioning sleeves are fixedon the bottom surface of the upper connecting ring, positioning holes are formed in the upper connecting ring, limiting mechanisms and inner torsion springs are arranged between the inner connecting rod and the inner hinge shafts, and limiting mechanisms and outer torsion springs are arranged between the outer connecting rod and the outer hinge shafts. The filtering device can facilitate the usersto assemble and disassemble the filter paper and recycle a skeleton structure.

Description

technical field [0001] The invention belongs to the technical field of air purifiers, and relates to a filtering device and a using method thereof. Background technique [0002] In order to achieve a better filtering effect, the filtering device of the existing air purifier generally adopts cylindrical filter paper with a wavy structure. However, because the filter paper is bent to form a wavy shape, the strength is relatively low, and the wavy part is easily bent and deformed. As a result, the filtering effect is deteriorated. The traditional method is to increase the support structure inside, but it still cannot cooperate with the wave structure to form a support. It is necessary to bend the support structure and the wave structure together, but this will make the production process more complicated; [0003] The existing application number is 201710091070.6, which is a Chinese invention patent application titled "A filter device for an air purifier and its manufacturing m...

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Problems solved by technology

[0004] 1. After the filter paper is used, it needs to be replaced together with the support cylinder, and it is difficult for the user to replace it by himself, which makes the use cost high;

[0005] 2. The support hole is naturally formed after pressing the support sheet, so the opening is small, resulting in low utilization rate of filter paper and poor use effect;

[0006] 3. The support is only on the inner side of the filter paper, resulting in poor stability of the installed filter paper, and there may be folds at the same time, resulting in low use efficiency;

[0007] 4. There is no support structure at the upper and lower ends of the filter paper, so that the filter paper will move or shift along the axial direction of the support cylinder; therefore, it is necessary to improve

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