CN210239881U

CN210239881U - Air filter

Info

Publication number: CN210239881U
Application number: CN201920999513.6U
Authority: CN
Inventors: Xuedong Liu; 刘学东
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-30
Filing date: 2019-06-30
Publication date: 2020-04-03
Anticipated expiration: 2029-06-30

Abstract

The utility model provides an air filter, filter the core including the tube-shape, the tube-shape is filtered the core and is included the non-woven fabrics layer. The non-woven fabric layer comprises a plurality of folding pieces, and adjacent folding pieces are connected and fixed through glue layers. The shape of the adhesive layer is matched with the triangular shape formed by the adjacent connected folding pieces; the glue layers between the adjacent folding pieces are connected together to form a glue layer fixing strip; the folding pieces are connected to form a non-woven fabric layer of the annular filtering and folding structure, the adhesive layer fixing strip is positioned on the outer wall of the non-woven fabric layer of the annular filtering and folding structure, and the adhesive layer enables the distance H between every two adjacent folding pieces on the outer wall of the non-woven fabric layer to be equal. The air filter of the utility model has high strength, is not easy to damage, can be washed by water and repeatedly used, and has the advantages of energy saving, environmental protection and low cost; gaps between folds are fixed and equal and do not deform, so that the air filtering efficiency and the air filtering quality are greatly improved; reasonable structure and convenient use.

Description

Air filter

Technical Field

The utility model relates to a filter technical field especially relates to an air cleaner.

Background

The filter is a filter that filters impurities or gas through filter paper. Generally referred to as an automobile filter, is an accessory of an engine. The method is divided into the following steps according to different filtering functions: oil filters, fuel filters (gasoline filters, diesel filters, oil-water separators, hydraulic filters), air filters, air-conditioning filters, and the like. The engine has three filters of air, engine oil and fuel oil, generally called three filters, and an air-conditioning filter, commonly called four filters. Respectively takes charge of the filtration of a lubricating system, a medium in a combustion system, an engine air inlet system and a carriage air circulating system.

At present, the air filter used for the engine adopts the filter paper made of wood pulp for filtering, and the filter paper made of wood pulp is easy to be damaged, cannot be cleaned and reused, has serious waste phenomenon and high cost. The filter paper 10 made of wood pulp is provided with a plurality of protrusions 101, as shown in fig. 8, when in use, adjacent filter paper sheets are close together, and the protrusions 101 on the adjacent filter paper sheets abut against each other, so that gaps are formed between the adjacent filter paper sheets. This is a weak paper, so the gap width between adjacent filter paper sheets formed by the protrusions 101 is not uniform, which affects the air filtering quality.

Furthermore, some conventional air cleaners employ nonwoven fabric for filtration, for example, patent application No. 201820565953.6 entitled "an air cleaner", which employs nonwoven fabric for air filtration, but specifically has a complex structure of outer layer nonwoven fabric + felt fabric + inner layer nonwoven fabric, and the three-layer filter structure performs three times of filtration on impurities in air, so that the filter effect is better than that of the filter paper made of wood pulp, but the air is greatly prevented from entering the air cleaner; and the felt cloth is the annular structure of straining, though the top and the bottom of felt cloth are fixed in the downward both ends of filter, the intermediate position of felt cloth easily appears folding and fold between the clearance inequality, leads to the problem such as filter effect difference.

Disclosure of Invention

Aiming at the defects, the utility model aims to provide an air filter which has high strength, is not easy to damage, can be washed by water and repeatedly used, is energy-saving and environment-friendly and has low cost; gaps between folds are fixed and equal and do not deform, so that the air filtering efficiency and the air filtering quality are greatly improved; reasonable structure and convenient use.

In order to achieve the above object, the utility model provides an air cleaner, filter the core including the tube-shape, the tube-shape is filtered the core and is included the non-woven fabrics layer. The non-woven fabric layer comprises a plurality of folding pieces, and adjacent folding pieces are connected and fixed through glue layers. The shape of the adhesive layer is matched with the triangular shape formed by the adjacent connected folding pieces;

the glue layers between the adjacent folding pieces are connected together to form a glue layer fixing strip;

the folding pieces are connected to form a non-woven fabric layer of the annular filtering and folding structure, the adhesive layer fixing strip is positioned on the outer wall of the non-woven fabric layer of the annular filtering and folding structure, and the adhesive layer enables the distance H between every two adjacent folding pieces on the outer wall of the non-woven fabric layer to be equal.

Preferably, a plurality of glue layer fixing strips are arranged on the non-woven fabric layer at equal intervals.

Further, the distance H between two adjacent folded sheets on the outer wall of the non-woven fabric layer of the annular filter-folded structure is larger than the distance H between two adjacent folded sheets on the inner wall.

Further, the distance H between two adjacent folded sheets on the outer wall of the nonwoven fabric layer is 1.5 times the distance H between two adjacent folded sheets on the inner wall of the nonwoven fabric layer 1.

Further, the air filter also comprises an outer supporting net and an inner supporting net, the cylindrical filter element is positioned between the outer supporting net and the inner supporting net, the tops of the outer supporting net and the inner supporting net are fixed through annular end covers, and the bottoms of the outer supporting net and the inner supporting net are sealed and fixed through bottom end covers.

Further, the outside of bottom end cover still is provided with the fixed block, the fixed block is the bar and is the annular distribution and is provided with the polylith.

Furthermore, the cylindrical filter element also comprises an auxiliary filter layer positioned inside the non-woven fabric layer, the auxiliary filter layer comprises a plurality of auxiliary filter sheets, the auxiliary filter sheets are connected to form the auxiliary filter layer with an annular filter structure, and the auxiliary filter layer is made of non-woven fabric.

Furthermore, adjacent auxiliary filter sheets are connected and fixed through auxiliary adhesive layers, and the shape of each auxiliary adhesive layer is matched with the shape of a triangle formed by the adjacent connected auxiliary filter sheets; the auxiliary adhesive layers between the adjacent auxiliary filter sheets are connected together to form an auxiliary adhesive layer fixing strip; the auxiliary glue layer fixing strip is positioned on the inner wall of the auxiliary filtering layer of the annular filtering structure.

Furthermore, the auxiliary filter sheets are inserted into two adjacent folding sheets of the non-woven fabric layer at equal angles.

Furthermore, an auxiliary filter sheet is inserted between every 2-10 folding sheets.

The utility model provides an air filter, which has high strength, is not easy to damage, can be washed by water and repeatedly used, and has the advantages of energy saving, environmental protection and low cost; gaps between folds are fixed and equal and do not deform, so that the air filtering efficiency and the air filtering quality are greatly improved; reasonable structure and convenient use.

Drawings

FIG. 1 is a sectional view of an air cleaner according to embodiment 1 of the present invention;

fig. 2 is a side view of an outer support net;

FIG. 3 is a cross-sectional view of a nonwoven layer;

FIG. 4 is an expanded view of a nonwoven layer;

FIG. 5 is a schematic view of the connection relationship between adjacent flaps and adhesive layers;

FIG. 6 is a schematic view of a flap of the nonwoven layer;

FIG. 7 is a sectional view of a cartridge of example 2;

FIG. 8 is a schematic structural view of a filter paper made of wood pulp in the background art;

1-non-woven fabric layer, 2-outer supporting net, 3-inner supporting net, 4-annular end cover, 5-bottom end cover, 6-fixed block, 7-adhesive layer, 11-auxiliary filtering layer and 71-auxiliary adhesive layer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

EXAMPLE 1 air Filter

Referring to fig. 1 to 6, the present invention provides an air cleaner, which comprises a cylindrical filter element, wherein the cylindrical filter element comprises a non-woven fabric layer 1. The non-woven fabric layer 1 comprises a plurality of folding pieces, and the adjacent folding pieces are connected and fixed through a glue layer 7. The shape of the glue layer 7 is matched with the triangular shape formed by the adjacent connected folding pieces.

The glue layers 7 between the adjacent folding sheets are connected together to form a glue layer fixing strip. A plurality of glue layer fixing strips are arranged on the non-woven fabric layer 1 at equal distances. The folding pieces are connected to form a non-woven fabric layer 1 of an annular filtering and folding structure. The glue line fixing strip is positioned on the outer wall of the non-woven fabric layer 1 of the annular filter-fold structure.

The glue layer 7 enables the distance H between two adjacent folded sheets on the outer wall of the non-woven fabric layer 1 to be equal, the distance H is 0.3-0.5 cm, and the glue layer 7 can effectively prevent the non-woven fabric layer 1 from deforming and improve the strength of the non-woven fabric layer 1; the distance between two adjacent folded sheets on the outer wall of the non-woven fabric layer 1 is equal, so that the air filtering efficiency of the filter can be greatly improved.

The distance H between two adjacent folded sheets on the outer wall of the non-woven fabric layer 1 of the annular filter-folded structure is larger than the distance H between two adjacent folded sheets on the inner wall. Preferably, the distance H between two adjacent folded sheets on the outer wall of the non-woven fabric layer 1 is 1.5 times the distance H between two adjacent folded sheets on the inner wall of the non-woven fabric layer 1, so that the arrangement not only improves the air throughput, but also greatly improves the air filtering quality. The problems of high cost and air passing obstruction and air passing reduction caused by using too much non-woven fabrics are avoided.

Air cleaner still includes outer support network 2 and interior support network 3, the tube-shape is filtered the core and is located between outer support network 2 and the interior support network 3, it is fixed that annular end cover 4 is passed through at outer support network 2 and the top of interior support network 3, the bottom of outer support network 2 and interior support network 3 is sealed fixed through bottom end cover 5, the outside of bottom end cover 5 still is provided with fixed block 6, fixed block 6 is the bar and is the annular distribution and be provided with the polylith.

The thickness of the non-woven fabric is 1-1.5 mm, and the width of each folded piece is 3-5 cm.

EXAMPLE 1 air Filter

Referring to fig. 7, the present invention provides an air cleaner, which is different from the above embodiments in that: the cylindrical filter element comprises a non-woven fabric layer 1 and an auxiliary filter layer 11 positioned inside the non-woven fabric layer 1. The auxiliary filtering layer 11 comprises a plurality of auxiliary filtering sheets, and the plurality of auxiliary filtering sheets are connected to form the auxiliary filtering layer 11 with an annular filtering structure.

The auxiliary filter layer 11 is made of non-woven fabrics.

The adjacent auxiliary filter sheets are connected and fixed through an auxiliary adhesive layer 71. The shape of the auxiliary adhesive layer 71 is matched with the triangular shape formed by the adjacent connected auxiliary filter sheets.

The auxiliary glue layers 71 between a plurality of adjacent auxiliary filter sheets are connected together to form an auxiliary glue layer fixing strip. A plurality of auxiliary glue layer fixing strips are equidistantly arranged on the auxiliary filtering layer 11. The auxiliary glue layer fixing strip is positioned on the inner wall of the auxiliary filtering layer 11 of the annular filtering structure.

The auxiliary filter sheets are inserted into two adjacent folding sheets of the non-woven fabric layer 1 at equal angles. Preferably, an auxiliary filter sheet is inserted between every 2-10 folding sheets.

The filter layers made of two layers of non-woven fabrics are arranged, so that the air throughput can be ensured, and the air filtering quality is greatly improved. And light in weight, can directly use high-pressure water to wash after long-time use, can recycle many times, and green is pollution-free.

Naturally, the present invention can be embodied in many other forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be made by one skilled in the art without departing from the spirit or essential attributes thereof, and it is intended that all such changes and modifications be considered as within the scope of the appended claims.

Claims

1. The air filter is characterized by comprising a cylindrical filter element, wherein the cylindrical filter element comprises a non-woven fabric layer (1), the non-woven fabric layer (1) comprises a plurality of folded pieces, adjacent folded pieces are connected and fixed through an adhesive layer (7), and the shape of the adhesive layer (7) is matched with the triangular shape formed by the adjacent connected folded pieces;

the glue layers (7) between the adjacent folding pieces are connected together to form a glue layer fixing strip;

the folding pieces are connected to form a non-woven fabric layer (1) of an annular filtering and folding structure, the adhesive layer fixing strip is located on the outer wall of the non-woven fabric layer (1) of the annular filtering and folding structure, and the adhesive layer (7) enables the distance H between every two adjacent folding pieces on the outer wall of the non-woven fabric layer (1) to be equal.

2. An air cleaner according to claim 1, wherein the nonwoven fabric layer (1) is provided with a plurality of adhesive layer fixing strips at equal intervals.

3. An air cleaner according to claim 1, wherein the distance H between two adjacent flaps on the outer wall of the nonwoven layer (1) of the annular filter structure is greater than the distance H between two adjacent flaps on the inner wall.

4. An air cleaner according to claim 3, wherein the distance H between two adjacent flaps on the outer wall of the nonwoven layer (1) is 1.5 times the distance H between two adjacent flaps on the inner wall of the nonwoven layer (1).

5. The air cleaner according to claim 1, further comprising an outer support net (2) and an inner support net (3), wherein the cylindrical filter element is positioned between the outer support net (2) and the inner support net (3), the top of the outer support net (2) and the top of the inner support net (3) are fixed through an annular end cover (4), and the bottom of the outer support net (2) and the bottom of the inner support net (3) are sealed and fixed through a bottom end cover (5).

6. The air cleaner as recited in claim 5, characterized in that a fixing block (6) is further disposed on the outer side of the bottom end cover (5), and the fixing block (6) is in the shape of a strip and is annularly provided with a plurality of blocks.

7. The air cleaner according to claim 1, wherein the cylindrical filter element further comprises an auxiliary filter layer (11) located inside the non-woven fabric layer (1), the auxiliary filter layer (11) comprises a plurality of auxiliary filter sheets, the plurality of auxiliary filter sheets are connected to form the auxiliary filter layer (11) with an annular filter structure, and the auxiliary filter layer (11) is made of non-woven fabric.

8. The air cleaner as recited in claim 7, wherein adjacent auxiliary filter sheets are connected and fixed through an auxiliary adhesive layer (71), and the shape of the auxiliary adhesive layer (71) is matched with the triangular shape formed by the connected adjacent auxiliary filter sheets; the auxiliary glue layers (71) between the adjacent auxiliary filter sheets are connected together to form an auxiliary glue layer fixing strip; the auxiliary glue layer fixing strip is positioned on the inner wall of the auxiliary filtering layer (11) of the annular filtering and folding structure.

9. An air cleaner according to claim 8, wherein the auxiliary filter is inserted into two adjacent flaps of the non-woven fabric layer (1) at equal angles.

10. The air cleaner of claim 9, wherein an auxiliary filter is inserted between every 2-10 folded pieces.