Air filter assembly

Abstract

The utility model relates to the technical field of automobile air filters, and provides an air filter assembly which comprises a cylinder body, the cylinder body comprises a fine filtering cylinder body and a rough filtering square box, an upper flange is arranged at the lower end of the fine filtering cylinder body, a lower flange is arranged at the upper end of the rough filtering square box, and a sealing ring is arranged between the upper flange and the lower flange. The upper flange and the lower flange are fixedly connected through bolts, and a front air inlet and a rear air inlet are formed in the front and the rear of the rough filtration square box respectively. According to the utility model, the upper and lower split design is adopted, so that the disassembly and the replacement are convenient, the downward turnups arranged on the two sides of the upper flange of the fine filtration cylinder body are convenient for clamping the lower flange of the rough filtration square box, and the fine filtration cylinder can be better positioned during installation, so that the lower flange is not easy to misplace during installation and is firmer during positioning; the front air inlet and the rear air inlet are arranged, so that the front air inlet and the rear air inlet can be better formed in the two sides of the frame during installation, and the problem that only one air inlet can be formed in the right side, so that the rotated air inlet cannot be connected with an air inlet pipeline is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile air filters, in particular to an air filter assembly. Background Art

[0002] The air filter assembly is a component that provides clean, dry, and temperature-appropriate air to the engine. The shell structure of the air filter assembly is relatively complex, and the mold cost is relatively high. Comprehensive considerations must be made at the beginning of the design. Once the mold is completed, the structure is not easy to change.

[0003] For National VI models, as emission requirements become more stringent, catalytic mufflers are getting bigger and bigger, and the space for air filter assembly is gradually compressed. We have to consider placing the air filter assembly on the left side. However, when designing the air filter assembly in the early stage, left-mounted models were not considered. After rotating 180 degrees, the air inlet faces backwards and cannot be connected to the pipeline, resulting in the need to redesign the air filter assembly or find suitable resources again, which is time-consuming and laborious. At the same time, there will be problems such as the shape of the air filter assembly air inlet and the air inlet base interface not matching, and the inability to design a transition hose.

[0004] The traditional air filter assembly structure is as follows: Figure 1 , Figure 2 As shown in the figure, the upper and lower filter cylinders of this structure are integrated, and only one side has an air inlet. This air filter assembly can only be arranged on the right side and is only suitable for air inlet bases with the same oval interface. This structure has poor versatility, high cost for redeveloping molds, and time-consuming to find suitable resources again. Summary of the invention

[0005] The utility model provides an air filter assembly to solve the problems that the existing air filter has poor versatility, can only be arranged on the right side, has only one air inlet, and when arranged on the left side, the air inlet cannot be connected to the pipeline after rotation, and the interface shape of the air inlet and the air inlet base is easily mismatched.

[0006] In order to solve the technical problem, the utility model adopts the following technical solution:

[0007] An air filter assembly includes a body, wherein the body includes a fine filter cylinder and a coarse filter square box, an upper flange is provided at the lower end of the fine filter cylinder, a lower flange is provided at the upper end of the coarse filter square box, a sealing ring is provided between the upper flange and the lower flange, the upper flange and the lower flange are fixedly connected by bolts, and a front air inlet and a rear air inlet are respectively provided at the front and rear of the coarse filter square box.

[0008] Furthermore, the upper flange has flanges extending downward on both sides thereof.

[0009] Furthermore, the front air inlet and the rear air inlet may both be circular or elliptical, or the front air inlet may be elliptical and the rear air inlet may be circular, or the front air inlet may be circular and the rear air inlet may be elliptical.

[0010] Furthermore, a flange surface is installed on the outer side of the air inlet, and a blocking cover is fixedly provided on the outer side of the flange surface of the air inlet.

[0011] The beneficial effects of the utility model are:

[0012] The utility model adopts the design of upper and lower split bodies, which is convenient for disassembly and replacement. The downward flanges arranged on both sides of the upper flange of the fine filter cylinder are convenient for clamping the lower flange of the coarse filter box, which can be better positioned during installation, making the installation of the lower flange not easy to be misplaced and more secure during positioning;

[0013] The front air inlet and the rear air inlet can be better arranged on both sides of the frame during installation, avoiding the problem that the air inlet can only be set on the right side and there is only one air inlet, which causes the air inlet after rotation to be unable to connect to the air inlet pipeline;

[0014] The flanges provided on the front air inlet and the rear air inlet can be matched with air inlet pipes of different shapes through the flange surface; the same shape of the front air inlet and the rear air inlet is more convenient in use, and different shapes are convenient for selection according to needs;

[0015] The setting of the blocking cover can block the unused air inlet when one air inlet is in use, so that the product can be used better. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a traditional plastic air filter assembly;

[0017] Figure 2 This is a schematic diagram of the structure of a traditional iron air filter assembly;

[0018] Figure 3 It is a schematic diagram of the structure of the utility model;

[0019] Figure 4 It is a side view structural schematic diagram of the utility model;

[0020] Figure 5 For this utility model Figure 3 A magnified image of A;

[0021] Figure 6 This is a schematic diagram of the installation and use of the front inlet connecting pipeline of the utility model;

[0022] Figure 7 This is a schematic diagram of the installation and use of the rear inlet connecting pipeline of the utility model.

[0023] In the figure: 1. Main body, 2. Fine filter cylinder, 3. Coarse filter box, 4. Upper flange, 5. Lower flange, 6. Sealing ring, 7. Bolts, 8. Front air inlet, 9. Rear air inlet, 10. Plug cover, 11. Right longitudinal beam of the frame, 12. Left longitudinal beam of the frame, 13. Air inlet pipeline. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0025] refer to Figures 3 to 7 An air filter assembly comprises a body, wherein the body comprises a fine filter cylinder 2 and a coarse filter square box 3, an upper flange 4 is arranged at the lower end of the fine filter cylinder 2, a lower flange 5 is arranged at the upper end of the coarse filter square box 3, a sealing ring 6 is arranged between the upper flange 4 and the lower flange 5, the upper flange 4 and the lower flange 5 are fixedly connected by bolts 7, and a front air inlet 8 and a rear air inlet 9 are arranged at the front and rear of the coarse filter square box 3, respectively, the front air inlet 8 and the rear air inlet 9 can both be circular or elliptical, or the front air inlet 8 is elliptical and the rear air inlet 9 is circular, or the front air inlet 8 is circular and the rear air inlet 9 is elliptical; the front air inlet 8 and the rear air inlet 9 are symmetrically arranged below the upper lower flange 5 of the coarse filter square box 3.

[0026] refer to Figure 5 Furthermore, the left and right sides of the upper flange surface 4 have downwardly extending flanges, which are used to further restrict the lower flange, so that the positioning is secure and the installation is convenient, and the sealing ring is also more secure.

[0027] Furthermore, flanges are installed on the outer sides of the front air inlet 8 and the rear air inlet 9, and a plugging cover 10 is fixed on the outer side of the flange surface by bolts.

[0028] The front air inlet 8 of the utility model is oval and the rear air inlet 9 is circular, or the front air inlet 8 is circular and the rear air inlet 9 is oval. When in use, the coarse filter box can be rotated 180° according to needs.

[0029] The fine filter cylinder and the coarse filter square box of the utility model are made of plastic or iron.

[0030] Working principle:

[0031] refer to Figure 6 , Figure 7 When the utility model is used, when the front air inlet and the rear air inlet are of different shapes, the shape of the air inlet is selected according to actual needs, and then the coarse filter box is rotated or not, the air inlet on the used side is opened, and the unused side is blocked with a plug cover;

[0032] When the front air inlet and the rear air inlet are of the same shape, when the product is arranged on the right side, the front air inlet is opened and the rear air inlet is blocked with a plugging cover; when the product is arranged on the left side, the front air inlet is blocked with a plugging cover and the rear air inlet is opened. The air inlet on the used side is opened and the unused side is blocked with a plugging cover.

[0033] Based on the above description, those skilled in the art can make simple changes and modifications without departing from the technical concept of the present invention, which should fall within the protection scope of the present invention.

Claims

1. An air filter assembly, comprising a body, characterized in that: The main body includes a fine filter cylinder and a coarse filter square box. The lower end of the fine filter cylinder is provided with an upper flange, and the upper end of the coarse filter square box is provided with a lower flange. A sealing ring is provided between the upper flange and the lower flange. The upper flange and the lower flange are fixedly connected by bolts. The front and rear of the coarse filter square box are respectively provided with a front air inlet and a rear air inlet.

2. An air filter assembly according to claim 1, characterized in that: The left and right sides of the upper flange are provided with flanges extending downwards.

3. An air filter assembly according to claim 1, characterized in that: The front air inlet and the rear air inlet may both be circular or elliptical, or the front air inlet may be elliptical and the rear air inlet may be circular, or the front air inlet may be circular and the rear air inlet may be elliptical.

4. The air filter assembly according to claim 1, characterized in that: A flange surface is installed on the outer side of the air inlet, and a plug cover is fixedly arranged on the outer side of the flange surface of the air inlet.

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