Multi-stage filter separated type air filter

Abstract

The invention discloses a multi-stage filter separated type air filter. The multi-stage filter separated type air filter comprises an outer shell and a fine filtering assembly; the outer shell sequentially comprises an upper cover (3), a middle shell (7) and a lower shell (16); an air inlet pipe (6) is installed inside the middle shell; a primary rough filtering assembly (5) is installed at the upper end of the air inlet pipe; a dust accumulating cup (14) is installed between the upper cover and the middle shell and on the side of the primary rough filtering assembly; the fine filtering assembly is installed inside the middle shell and the lower shell and sleeves the lower end of the air inlet pipe; the middle shell is externally connected with an air outlet pipe; the upper cover is connected with the air inlet pipe through combination of a nut (1) and a bolt (26) and fixes the dust accumulating cup; and the middle shell and the lower shell are connected through a buckle assembly. Through the separated design of the outer shell, air sequentially passes through the primary rough filtering assembly and the fine filtering assembly for multiple filtering, the design is scientific and reasonable, the structure is compact, the filtering effect is remarkable, clean air is provided, and the overall quality of the filter is improved.

Description

technical field [0001] The invention relates to a filtering device, in particular to an air filter. Background technique [0002] At present, the air filter for a vehicle is a filter used for air purification of the vehicle intake system, which includes a fine filter assembly (a paper filter element), which is a single-layer type, and has a single function of filtering air impurities. The integral type affects the filtering effect and assembly efficiency of the filter. Contents of the invention [0003] The object of the present invention is to overcome the above-mentioned disadvantages, and provide a multi-stage filter split air filter which realizes the split design of the outer shell and multiple times of air filtration. [0004] The purpose of the present invention is achieved through the following technical solutions: a multi-stage filter split air filter, including an outer shell and a fine filter assembly, the outer shell is sequentially composed of an upper cover,...

AI Technical Summary

Problems solved by technology

[0002] At present, the air filter for a vehicle is a filter used for air purification of the vehicle intake system, which includes a fine filter assembly (a paper filter element), which is a single-layer type, and has a single function of filtering air impurities. Integral type, which affects the filtering effect and assembly efficiency of the filter

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