Air filter with graded filtering function

Abstract

The utility model relates to the technical field of automobile filters, in particular to an air filter with a graded filtering function, which comprises a filter body, and a filtering assembly is arranged on the side wall of the filter body and used for filtering air. According to the utility model, the filter assembly with good waterproof effect and high filtering precision is arranged on the filter main body, and the inner filter cylinder and the outer filter plate on the filter assembly are respectively arranged on the inner side and the outer side of the filter main body, so that the outer filter plate is fixed on the filter main body; dust impurities in the air can be filtered for the second time, the filtering effect is improved, and the service life is prolonged; meanwhile, the fixing assembly and the stabilizing assembly which are convenient for disassembling and assembling the outer filter plate are arranged on the filter main body, so that the outer filter plate and the inner filter cylinder can be quickly assembled, and the outer filter plate and the inner filter cylinder can be conveniently cleaned or replaced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automobile filter, in particular to an air filter with graded filtration. BACKGROUND

[0002] Air filter, also known as air filter cartridge, is mainly used in automobile, engineering locomotive and other equipment, filters dust, sand and other impurities in air, prevents it from entering the engine or pneumatic machinery inside, causes damage, air filter has important role to protect engine, prolong service life, ensure engine power effective play and reduce environmental pollution etc.

[0003] At present, the air filter mainly filters air through the paper filter element inside, since the paper filter element is mostly semi-gum paper material, and the paper filter element absorbs water molecules in the high humidity environment, which increases air resistance, affects the air intake efficiency of the engine, and after the fiber structure of the paper filter element is damaged by water molecules, the filtering effect on part of the fine dust in the air is limited, which further easily causes the internal damage of the engine. UTILITY MODEL CONTENT

[0004] The utility model aims at providing an air filter with graded filtration to solve the problem that the paper filter element easily absorbs water molecules to damage its fiber structure, affects the air intake efficiency of the engine, and easily affects the filtration of fine dust in the air.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: an air filter with graded filtration, comprising a filter main body,

[0006] A filter assembly is arranged on the side wall of the filter main body, the filter assembly is used for filtering air, and the filter assembly comprises an inner filter cartridge, the inner filter cartridge is threadedly connected to the inner wall of the filter main body, and outer filter plates are movably clamped on the two sides of the filter main body.

[0007] A fixing assembly is arranged at the two ends of the filter main body, the fixing assembly is used for fixing the outer filter plates, the fixing assembly comprises a clamping plate, the clamping plate is fixedly connected to the two sides of the outer filter plate, a fixing piece is inserted into the side wall of the clamping plate, and the fixing piece is slidingly connected to the inside of the filter main body.

[0008] Preferably, a plurality of clamping grooves are formed in the two sides of the filter main body, and the clamping plate is inserted into the inside of the clamping grooves.

[0009] Preferably, the fixing assembly further comprises a connecting plate, the connecting plate is fixedly installed at the end of the fixing piece, a fixing groove is formed in the side wall of the clamping plate, and the fixing piece is inserted into the inside of the fixing groove.

[0010] Preferably, a sliding groove is arranged inside the filter body, and sliding members are fixedly connected to the two sides of the connecting plate and are slidingly connected inside the sliding groove.

[0011] Preferably, screws are threadedly connected to the two ends of the filter body, and wedge-shaped members are rotatably connected to the bottoms of the screws and slidingly connected inside the filter body, and connecting members are fixedly connected to the side walls of the connecting plate and slidingly connected to the side walls of the wedge-shaped members.

[0012] Preferably, a stabilizing assembly for defining the inner filter cartridge is arranged at the top of the filter body, and the stabilizing assembly comprises a shaft rod fixedly installed at the top of the filter body and an outer peripheral wall of the shaft rod rotatably connected to a limiting plate.

[0013] Preferably, a circular plate is fixedly connected to the outer peripheral wall of the shaft rod, a plurality of circular grooves are arranged at the top of the circular plate, a circular rod penetrates through the top of the limiting plate and is inserted into the circular grooves, springs are sleeved to the outer peripheral wall of the circular rod and are fixedly installed between the circular rod and the limiting plate.

[0014] Preferably, a rubber pad is fixedly connected to the bottom of the limiting plate and is pressed against the top of the inner filter cartridge.

[0015] Compared with the prior art, the filter body has the advantages that:

[0016] The filter assembly has good waterproof effect and high filtering precision, the inner filter cartridge and the outer filter plate on the filter assembly are respectively installed at the inner and outer sides of the filter body, dust and impurities in the air can be filtered twice, the filtering effect and service life are improved, the fixing assembly and the stabilizing assembly are arranged on the filter body and facilitate disassembly and assembly of the outer filter plate, the outer filter plate and the inner filter cartridge can be quickly assembled, and the outer filter plate and the inner filter cartridge can be cleaned or replaced. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model makes further explanation in connection with the drawings:

[0018] Figure 1 It is whole structure schematic diagram of filter body of the utility model;

[0019] Figure 2 It is expanded structure schematic diagram of filter assembly of the utility model;

[0020] Figure 3 It is cross section structure schematic diagram of filter body of the utility model;

[0021] Figure 4It is the unfolding structure schematic diagram of the fixed assembly of the utility model.

[0022] Figure 5 It is the unfolding structure schematic diagram of the stable assembly of the utility model.

[0023] In the drawing: 1, filter main body; 2, filter assembly; 201, inner filter cylinder; 202, outer filter plate; 3, fixed assembly; 301, clamping plate; 3011, clamping groove; 3012, fixed groove; 302, fixed part; 3021, connecting plate; 303, connecting part; 304, wedge part; 305, screw rod; 306, sliding part; 3061, sliding groove; 4, stable assembly; 401, limiting plate; 402, shaft rod; 403, round plate; 4031, round groove; 404, round rod; 405, spring; 406, rubber pad. DETAILED DESCRIPTION

[0024] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The technical solutions in the embodiments of the present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0025] In order for the person skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the present application.

[0026] As Figures 1-5 shown, the utility model provides a kind of technical scheme: a kind of air filter with hierarchical filtration, including filter main body 1,

[0027] Specifically, as Figure 2 shown, the side wall of filter main body 1 is provided with filter assembly 2, filter assembly 2 is used to filter air, filter assembly 2 includes inner filter cylinder 201, inner filter cylinder 201 is threadedly connected to the inner wall of filter main body 1, outer filter plate 202 is movably clamped on the two sides of filter main body 1, outer filter plate 202 can be used by high-density fiber material, has the advantages of good waterproof, easy to clean, high filtration precision, can filter dust in air;Secondly, inner filter cylinder 201 is arranged in the inside of filter main body 1, inner filter cylinder 201 can be used by activated carbon material, has the advantages of strong adsorption capacity, long service life, can secondary filter fine dust in air, by setting inner and outer double-layer inner filter cylinder 201 and outer filter plate 202, improve the filtration effect of filter main body 1 as a whole;

[0028] Specifically, as shown in Figure 3 The filter body 1 is provided with a fixing assembly 3 at both ends, which is used for fixing the outer filter plate 202. The fixing assembly 3 comprises a clamping plate 301 fixedly connected to both sides of the outer filter plate 202. The side wall of the clamping plate 301 is inserted with a fixing piece 302 which is slidingly connected to the inside of the filter body 1.

[0029] A plurality of clamping grooves 3011 are formed on both sides of the filter body 1. The clamping plate 301 is inserted into the clamping grooves 3011.

[0030] The end of the fixing piece 302 is fixedly provided with a connecting plate 3021. The side wall of the clamping plate 301 is provided with a fixing groove 3012. The fixing piece 302 is inserted into the fixing groove 3012.

[0031] A sliding groove 3061 is formed in the inside of the filter body 1. The two sides of the connecting plate 3021 are fixedly connected with a sliding piece 306 which is slidingly connected to the inside of the sliding groove 3061. By moving the wedge-shaped piece 304 upwards, the connecting plate 3021 can be slid outward in the sliding groove 3061 until the fixing piece 302 is away from the fixing groove 3012. At this time, the outer filter plate 202 can be taken out for cleaning or replacement.

[0032] The filter body 1 is threadedly connected with a lead screw 305 at both ends. The bottom of the lead screw 305 is rotatably connected with a wedge-shaped piece 304 which is slidingly connected to the inside of the filter body 1. The side wall of the connecting plate 3021 is fixedly connected with a connecting piece 303 which is slidingly connected to the side wall of the wedge-shaped piece 304. By rotating the lead screw 305 upwards, the wedge-shaped piece 304 can be moved upwards.

[0033] Specifically, as shown in Figure 5 The top of the filter body 1 is provided with a stabilizing assembly 4 for defining the inner filter cylinder 201. The stabilizing assembly 4 comprises a shaft 402 fixedly installed at the top of the filter body 1. The outer peripheral wall of the shaft 402 is rotatably connected with a limiting plate 401.

[0034] The outer peripheral wall of the shaft rod 402 is fixedly connected with a circular plate 403, a plurality of groups of circular grooves 4031 are formed in the top of the circular plate 403, a circular rod 404 penetrates the top of the limiting plate 401, the circular rod 404 is inserted into the circular grooves 4031, a spring 405 is sleeved on the outer peripheral wall of the circular rod 404, the spring 405 is fixedly installed between the circular rod 404 and the limiting plate 401, the circular rod 404 is pressed downward to slide out of the circular grooves 4031, the limiting plate 401 is rotated towards the top of the inner filter cartridge 201, at this time, the limiting plate 401 can further fix the inner filter cartridge 201, and the stability of the installation of the inner filter cartridge 201 is improved; the circular rod 404 is reset upward by the tension of the spring 405, at this time, the circular rod 404 is inserted into the circular grooves 4031 to fix the limiting plate 401, and the situation that the limiting plate 401 is randomly rotated is avoided.

[0035] The bottom of the limiting plate 401 is fixedly connected with a rubber pad 406, and the rubber pad 406 is pressed on the top of the inner filter cartridge 201; the tightness when the inner filter cartridge 201 is pressed and fixed can be improved by the rubber pad 406.

[0036] In use, the inner filter cartridge 201 is first rotated and threadedly connected to the inner wall of the filter main body 1, the circular rod 404 is pressed downward to slide out of the circular grooves 4031, the limiting plate 401 is rotated to the top of the inner filter cartridge 201, and further pressing and fixing are performed, then the clamping plates 301 on the two groups of outer filter plates 202 are inserted into the clamping grooves 3011 on the filter main body 1, and the screw rod 305 is rotated downward to drive the wedge-shaped pieces 304 to move downward, the wedge-shaped pieces 304 drive the connecting plates 3021 to slide inward in the sliding grooves 3061, until the fixing pieces 302 on the connecting plates 3021 are inserted into the fixing grooves 3012 on the clamping plates 301, the outer filter plates 202 can be further fixed, and finally the filter main body 1 can be installed on the automobile for use.

[0037] Those skilled in the art will appreciate that the discussion of any implementation is merely exemplary in nature, and is not intended to suggest any limitation on the scope (including the claims) of the present application. In fact, many variations, modifications and alternatives are possible beyond those already described within the scope of the present application as outlined in the following claims. Thus, it is intended that the present application embrace all such variations, modifications and alternatives.

[0038] The present application is intended to cover all such alternatives, modifications and variations as fall within the scope of the broadest possible interpretation of the appended claims. Accordingly, any and all such alternatives, modifications and variations are intended to be encompassed by the appended claims.

Claims

1. An air filter with hierarchical filtering, comprising a filter body (1), characterized in that: a filtering assembly (2) is arranged on the side wall of the filter body (1), and is used for filtering air, and comprises an inner filter cylinder (201) which is threadedly connected to the inner wall of the filter body (1), and outer filter plates (202) which are movably clamped on both sides of the filter body (1); a fixing assembly (3) is arranged at both ends of the filter body (1), and is used for fixing the outer filter plates (202), and comprises clamping plates (301) which are fixedly connected to both sides of the outer filter plates (202), and fixing members (302) which are inserted into the side wall of the clamping plates (301) and are slidingly connected to the inside of the filter body (1); a plurality of clamping grooves (3011) are formed in the filter body (1), and the clamping plates (301) are inserted into the clamping grooves (3011); the fixing assembly (3) further comprises connecting plates (3021) which are fixedly installed at the end of the fixing members (302), and the side wall of the clamping plates (301) is provided with fixing grooves (3012) into which the fixing members (302) are inserted; a sliding groove (3061) is formed in the filter body (1), and sliding members (306) are fixedly connected to both sides of the connecting plates (3021) and are slidingly connected to the inside of the sliding groove (3061); screw rods (305) are threadedly connected to both ends of the filter body (1), and wedge-shaped members (304) are rotatably connected to the bottom of the screw rods (305) and are slidingly connected to the inside of the filter body (1), and connecting members (303) are fixedly connected to the side wall of the connecting plates (3021) and are slidingly connected to the side wall of the wedge-shaped members (304). A stabilizing assembly (4) for limiting the inner filter cylinder (201) is arranged on the top of the filter body (1), and comprises a shaft rod (402) which is fixedly installed on the top of the filter body (1), and a limiting plate (401) which is rotatably connected to the outer circumferential wall of the shaft rod (402). The outer circumferential wall of the shaft rod (402) is fixedly connected with a circular plate (403), the top of the circular plate (403) is provided with a plurality of circular grooves (4031), the top of the limiting plate (401) penetrates a circular rod (404) which is inserted into the circular grooves (4031), the outer circumferential wall of the circular rod (404) is sleeved with a spring (405) which is fixedly installed between the circular rod (404) and the limiting plate (401). ​ ​ ​ ​ 2. An air filter with staged filtration according to claim 1, characterized in that: ​ 3. An air filter with staged filtration according to claim 2, characterized in that: ​ 4. An air filter with staged filtration according to claim 3, characterized in that: The bottom of the limiting plate (401) is fixedly connected with a rubber pad (406), which is pressed on the top of the inner filter cartridge (201).

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