A retractable elastic outer frame for engine air filter

Abstract

The present invention relates to the technical field of automobile engine air filter components, and in particular to a retractable elastic outer frame for an engine air filter, comprising an outer frame body. The retractable elastic outer frame for an engine air filter of the present invention is provided with a connected strip-shaped lateral mounting groove and a wavy lateral mounting groove on the inner side of the outer frame body, so as to facilitate the assembly of multiple layers of filter paper. A lateral extrusion groove with a built-in lateral rebound sheet is provided on the outer side of the outer frame body, and the outer frame body is deformed by downward extrusion, and the resilience of the lateral rebound sheet is used to control the reset of the outer frame body. The filter paper is controlled by reset, so that dust and impurities adsorbed on the surface of the filter paper are bounced off, which facilitates the dust removal and cleaning of the entire filter, prolongs the service life of the air filter, and can improve the sealing of the filter assembly end.

Description

Technical Field

[0001] The invention relates to the technical field of automobile engine air filter components, in particular to a telescopic elastic outer frame for an engine air filter. Background Art

[0002] A device that removes particulate impurities from the air. When a piston machine (internal combustion engine, reciprocating compressor, etc.) is working, if the inhaled air contains impurities such as dust, it will aggravate the wear of the parts, so an air filter must be installed. The air filter consists of two parts: the filter element and the shell. The main requirements of the air filter are high filtration efficiency, low flow resistance, and long-term continuous use without maintenance. The traditional air filter structure is mostly an integrated fixed structure, and it is impossible to quickly clean the filter element on the air filter manually, which makes the maintenance of the air filter very difficult. Once dust accumulates, it can only be replaced as a whole, and the maintenance cost is relatively high. Summary of the invention

[0003] The technical problem to be solved by the present invention is: in order to solve the problems existing in the above-mentioned background technology, an improved retractable elastic outer frame for an engine air filter is provided to solve the problem that the traditional air filter structure is mostly an integrated fixed structure, and the filter element on the air filter cannot be quickly cleaned manually, which makes the maintenance of the air filter very difficult. Once dust is accumulated, it can only be replaced as a whole, and the maintenance cost is relatively high.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a telescopic elastic outer frame for an engine air filter comprises an outer frame body, a strip-shaped lateral mounting groove is provided on the left inner wall and the right inner wall of the outer frame body, a wave-shaped lateral mounting groove connected with the strip-shaped lateral mounting grooves at both ends is provided on the front inner wall and the back inner wall of the outer frame body, a lateral extrusion groove is provided in the middle section of the outer side surface of the outer frame body, a top slot is provided on the top surface of the lateral extrusion groove, a bottom slot is provided on the bottom surface of the lateral extrusion groove located directly below the top slot, an arc-shaped assembly hole is provided on the inner side surface of the lateral extrusion groove located between the top slot and the bottom slot, an elastically resettable lateral rebound sheet is provided inside the lateral extrusion groove, the lateral rebound sheet is connected to the inner side surface of the lateral extrusion groove by inserting the arc-shaped assembly hole, and the upper and lower ends of the lateral rebound sheet are respectively inserted into the corresponding top slot and the bottom slot and the upper and lower ends of the lateral extrusion groove are clamped and fixed.

[0005] Furthermore, in order to facilitate assembly and reduce costs, the top slot and the bottom slot are of the same size.

[0006] Furthermore, in order to facilitate the installation of the filter paper, a sticky fixing layer for installing the flexible non-woven filter paper is pasted on the inner bottom surface and the inner top surface of the lateral extrusion groove.

[0007] Furthermore, in order to improve the durability of the upper and lower ends, plastic extrusion sleeves are clamped and fixed inside the top slot and the bottom slot.

[0008] Furthermore, in order to improve the assembly degree, the inner diameter of the arc-shaped assembly hole is the same as the cross-sectional size of the lateral springback sheet.

[0009] Furthermore, in order to facilitate assembly, lateral assembly grooves for installing the filter are provided at the upper and lower opening positions on the inner side surfaces of the outer frame body.

[0010] The beneficial effect of the present invention is that a retractable elastic outer frame for an engine air filter of the present invention is convenient for assembling multiple layers of filter paper by opening interconnected strip-shaped lateral mounting grooves and wavy lateral mounting grooves on the inner side surface of the outer frame body, and a lateral extrusion groove with a built-in lateral springback sheet is opened on the outer side surface of the outer frame body. The outer frame body is deformed by downward extrusion, and the resilience of the lateral springback sheet is used to control the resetting of the outer frame body. The closing of the filter paper is controlled by resetting, so that dust and impurities adsorbed on the surface of the filter paper are bounced off, which facilitates dust removal and cleaning of the entire filter, prolongs the service life of the air filter, and at the same time can improve the sealing of the filter assembly end. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0012] Figure 1 It is a structural schematic diagram of the present invention.

[0013] Figure 2 It is a cross-sectional view of the present invention.

[0014] In the figure: 1. outer frame body, 2. strip-shaped lateral mounting groove, 3. wavy lateral mounting groove, 4. lateral extrusion groove, 5. top slot, 6. bottom slot, 7. arc-shaped assembly hole, 8. lateral rebound sheet, 9. plastic extrusion sleeve, 10. lateral assembly groove. DETAILED DESCRIPTION

[0015] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0016] Figure 1 and Figure 2The telescopic elastic outer frame for an engine air filter shown in the figure comprises an outer frame body 1, strip-shaped lateral mounting grooves 2 are provided on the left inner wall and the right inner wall of the outer frame body 1, wave-shaped lateral mounting grooves 3 connected with the strip-shaped lateral mounting grooves 2 at both ends are provided on the front inner wall and the back inner wall of the outer frame body 1, a lateral extrusion groove 4 is provided in the middle section of the outer side surface of the outer frame body 1, a top slot 5 is provided on the inner top surface of the lateral extrusion groove 4, a bottom slot 6 is provided on the inner bottom surface of the lateral extrusion groove 4 directly below the top slot 5, an arc-shaped assembly hole 7 is provided on the inner side surface of the lateral extrusion groove 4 between the top slot 5 and the bottom slot 6, an elastically resettable lateral rebound sheet 8 is provided inside the lateral extrusion groove 4, the lateral rebound sheet 8 is connected to the inner side surface of the lateral extrusion groove 4 by inserting into the arc-shaped assembly hole 7, and the upper and lower ends of the lateral rebound sheet 8 are respectively inserted into the corresponding top slot 5 and the bottom slot 6 and are clamped and fixed to the upper and lower ends of the lateral extrusion groove 4.

[0017] Furthermore, in order to facilitate assembly and reduce costs, the top slot 5 and the bottom slot 6 are of the same size. Furthermore, in order to facilitate the installation of the filter paper, the inner bottom surface and the inner top surface of the lateral extrusion slot 4 are both pasted with a sticky fixing layer for installing the flexible non-woven filter paper. Further, in order to improve the durability of the upper and lower ends, the top slot 5 and the bottom slot 6 are internally clamped and fixed with a plastic extrusion sleeve 9. Further, in order to improve the assembly degree, the inner diameter of the arc-shaped assembly hole 7 is the same as the cross-sectional size of the lateral rebound sheet 8. Further, in order to facilitate assembly, the inner side surface of the outer frame body 1 is provided with a lateral assembly slot 10 for installing the filter screen at the upper and lower opening positions. A telescopic elastic outer frame for an engine air filter is disclosed, wherein a connected strip-shaped lateral mounting groove 2 and a wavy lateral mounting groove 3 are provided on the inner side surface of an outer frame body 1, thereby facilitating the assembly of multiple layers of filter paper; a lateral extrusion groove 4 with a built-in lateral springback sheet 8 is provided on the outer side surface of the outer frame body 1, so that the outer frame body 1 is deformed by downward extrusion, and the resilience of the lateral springback sheet 8 is used to control the resetting of the outer frame body 1, and the closing of the filter paper is controlled by the resetting, so that dust and impurities adsorbed on the surface of the filter paper are bounced off, thereby facilitating dust removal and cleaning of the entire filter, extending the service life of the air filter, and at the same time improving the sealing of the filter assembly end.

[0018] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A retractable elastic outer frame for an engine air filter, comprising an outer frame body (1), characterized in that: The outer frame body (1) has a strip-shaped lateral mounting groove (2) on its left inner wall and right inner wall, the outer frame body (1) has a wave-shaped lateral mounting groove (3) on its front inner wall and back inner wall, the wave-shaped lateral mounting groove (3) connected to the strip-shaped lateral mounting grooves (2) at both ends, the outer frame body (1) has a lateral extrusion groove (4) in the middle section of its outer side surface, the top surface of the lateral extrusion groove (4) has a top slot (5), the bottom surface of the lateral extrusion groove (4) is located directly below the top slot (5) and has a bottom slot (6) 6), an arc-shaped assembly hole (7) is provided on the inner side of the lateral extrusion groove (4) between the top slot (5) and the bottom slot (6), and an elastically resetting lateral springback sheet (8) is provided inside the lateral extrusion groove (4), and the lateral springback sheet (8) is connected to the inner side of the lateral extrusion groove (4) by inserting the arc-shaped assembly hole (7), and the upper and lower ends of the lateral springback sheet (8) are respectively inserted into the top slot (5) and the bottom slot (6) at corresponding positions and are clamped and fixed to the upper and lower ends of the lateral extrusion groove (4); The outer frame body (1) is deformed by pressing downward, and the outer frame body (1) is controlled to reset by utilizing the resilience of the lateral rebound sheet (8). The filter paper is controlled to close by resetting, thereby rebounding dust and impurities adsorbed on the surface of the filter paper.

2. The retractable elastic outer frame for an engine air filter according to claim 1, characterized in that: The top slot (5) and the bottom slot (6) are of the same size.

3. The retractable elastic outer frame for an engine air filter according to claim 1, characterized in that: The inner bottom surface and the inner top surface of the lateral extrusion groove (4) are both pasted with a sticky fixing layer for mounting the flexible non-woven filter paper.

4. The retractable elastic outer frame for an engine air filter according to claim 1, characterized in that: A plastic extrusion sleeve (9) is clamped and fixed inside the top slot (5) and the bottom slot (6).

5. The retractable elastic outer frame for an engine air filter according to claim 1, characterized in that: The inner diameter of the arc-shaped assembly hole (7) is the same as the cross-sectional size of the lateral rebound sheet (8).

6. The retractable elastic outer frame for an engine air filter according to claim 1, characterized in that: The inner side surface of the outer frame body (1) is provided with lateral assembly grooves (10) for installing the filter screen at the upper and lower opening positions.

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