CN216950625U

CN216950625U - Folding filter element

Info

Publication number: CN216950625U
Application number: CN202220825733.9U
Authority: CN
Inventors: 李长明; 陈志彬
Original assignee: Zhangzhou Kangchuang Purifying Material Co ltd
Current assignee: Zhangzhou Kangchuang Purifying Material Co ltd
Priority date: 2022-04-11
Filing date: 2022-04-11
Publication date: 2022-07-12
Anticipated expiration: 2032-04-11

Abstract

The utility model discloses a folding filter element, which belongs to the field of filter elements and comprises four filter element components which are arranged in a rectangular shape, wherein rectangular flexible rings are arranged at two ends of each filter element component and are adhered to the end parts of the four filter element components at the same time; the filter element assembly comprises a rectangular flexible ring, wherein the top corners of the outer side of the rectangular flexible ring are provided with inwards concave notch parts, two sides of each notch part are provided with bonding parts matched with the end parts of the filter element assembly, and the top corners of the inner sides of two adjacent bonding parts are provided with flexible connecting parts; when buckling, lie in two of rectangle diagonal angle breach portion closure makes adjacent two filter element group spare side laminating is located another diagonal angle of rectangle two breach portion expandes to be 180. Can conveniently fold during the transportation, expand the flexible ring of back rectangle and can make fine design, convenient to use that resets when using.

Description

Folding filter element

Technical Field

The utility model relates to the field of filter elements, in particular to a folding filter element.

Background

The dry air filter is a filter which separates impurities in air through a dry filter element (such as a paper filter element). The air filter for light vehicles (including cars and minicars) is generally single-stage. Its shape is oblate or ellipse and flat plate type. The filter material is filter paper or non-woven cloth. The end cover of the filter element is made of metal or polyurethane, and the shell is made of metal or plastic. At a rated air volume flow rate, the original filtering efficiency of the filter element is not lower than 99.5%. Heavy-duty vehicles must have a large number of air filters due to the harsh operating environment. The first level is cyclone prefilter (like blade ring, cyclone tube etc.) for the coarse particle impurity of filtering, and filtration efficiency is more than 80%, and the fine filtration of second level is microporous paper filter core (generally called main filter core), and its filtration efficiency reaches more than 99.5%. A safety filter is also placed after the main filter, which prevents dust from entering the engine when the main filter is installed and replaced, or when the main filter is accidentally damaged. The material of the safety core is mostly non-woven fabric, and filter paper is also used.

Chinese patent publication No. CN208809678U discloses an air purification filter element capable of being folded in multiple ways, which comprises a plurality of filter elements independent from each other, and adjacent filter elements are connected in point contact manner by strip-shaped flexible connecting strips to realize ball-and-socket connection between two adjacent filter elements. The filter core adopting the structure realizes the ball hinge type connection of the adjacent filter cores through the flexible connecting strip.

The filter core generally is the cavity structure, and its space that occupies is great, often need occupy a large amount of spaces when the transportation to make the cost of transportation high, current inconvenient direct expansion after folding is used, the design effect is not good.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a folding filter element which can be conveniently folded into a plane and can be conveniently unfolded when in use, so that the folding filter element is convenient to transport and use.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a folding filter element which comprises four filter element assemblies arranged in a rectangular shape, wherein rectangular flexible rings are arranged at two ends of each filter element assembly and are simultaneously adhered to the end parts of the four filter element assemblies; the top corners of the outer sides of the rectangular flexible rings are provided with inwards concave notch parts, the two sides of each notch part are provided with bonding parts matched with the end parts of the filter element assemblies, and the top corners of the inner sides of two adjacent bonding parts are provided with flexible connecting parts; when buckling, be located two of rectangle diagonal angle the breach portion is closed makes adjacent two filter element group spare side laminating, is located two of another diagonal angle of rectangle the breach portion expandes and is 180.

The utility model preferably adopts the technical scheme that connecting soft paper is arranged on the side wall between two adjacent filter element assemblies and is adhered to the side walls of the filter element assemblies on two sides.

The filter element assembly comprises a paper element base body positioned on the outer side and a composite adsorption body positioned on the inner side, the inner side wall of the paper element base body is fixedly adhered to one side of the composite adsorption body, and the end parts of the upper end and the lower end of the paper element base body are adhered to the rectangular flexible ring.

The composite adsorbent comprises air-permeable base cloth and a plurality of activated carbon particles, wherein one side of the air-permeable base cloth is adhered to the paper core substrate, and the other side of the air-permeable base cloth is adhered to the activated carbon particles.

The utility model preferably adopts the technical scheme that the width of the flexible connecting part is 2mm-8 mm.

The utility model preferably adopts the technical scheme that the four filter element assemblies are equal in size, and are arranged into two layers of two parallel filter element assemblies when folded.

The utility model has the beneficial effects that:

the utility model provides a folding filter element which comprises four filter element assemblies arranged in a rectangular shape, wherein rectangular flexible rings are arranged at two ends of each filter element assembly and are simultaneously adhered to the end parts of the four filter element assemblies; the top corners of the outer sides of the rectangular flexible rings are provided with inwards concave notch parts, the two sides of each notch part are provided with bonding parts matched with the end parts of the filter element assemblies, and the top corners of the inner sides of two adjacent bonding parts are provided with flexible connecting parts; when buckling, be located two of rectangle diagonal angle the breach portion is closed makes adjacent two filter element group spare side laminating, is located two of another diagonal angle of rectangle the breach portion expandes and is 180. Can conveniently fold during the transportation, expand the flexible ring of back rectangle when using and can make fine design, convenient to use that resets.

Drawings

Fig. 1 is an overall schematic view of a pleated filter cartridge provided in an embodiment of the utility model;

FIG. 2 is a schematic cross-sectional view of a filter cartridge assembly provided in an embodiment of the present invention;

in the figure:

1. a rectangular flexible ring; 2. connecting soft paper; 3. a filter element assembly; 11. an adhesive portion; 12. a notch portion; 13. A flexible connection; 31. a paper core substrate; 32. a composite adsorbent; 321. a breathable base fabric; 322. activated carbon particles.

Detailed Description

The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.

As shown in fig. 1-2, the present embodiment provides a foldable filter element, which includes four filter element assemblies 3 arranged in a rectangular shape, wherein two ends of each filter element assembly 3 are respectively provided with a rectangular flexible ring 1, and the rectangular flexible rings 1 are simultaneously adhered to the ends of the four filter element assemblies 3; the outside apex angle department of the flexible ring 1 of rectangle is provided with inside

sunken breach portion

12, 12 both sides of breach portion be provided with 3 tip complex adhesion part 11 of filter element group spare, adhesion part 11 are fixed in filter element group spare 3 for filter element group spare 3 maintains stable shape, can not damage when the transportation. Flexible connecting parts 13 are arranged at the inner vertex angles of two adjacent bonding parts 11; when bending, two of the gap portions 12 located at opposite corners of the rectangle are closed so that two of the adjacent filter element assemblies 3 are attached to the side, and two of the gap portions 12 located at the other opposite corners of the rectangle are unfolded to form 180 °. The rectangular flexible ring 1 is preferably made of silica gel. When transportation is required, the filter element assemblies 3 are folded along the opposite corners so that two adjacent filter element assemblies 3 are folded together in two layers. The notch 12 of the rectangular flexible ring 1 allows enough space to fold it up, while the flexible connecting portion 13 does not break when bent and can be well restored when unfolded.

Preferably, adjacent two the lateral wall is provided with between the filter element group spare 3 and connects soft paper 2, connect soft paper 2 simultaneously with both sides the 3 lateral wall adhesions of filter element group spare. The soft paper 2 is connected at the junction of two adjacent filter element assemblies 3, so that the toughness is better when the folding is carried out, and the soft paper 2 is connected at the same time, so that the junction can also play a better filtering effect. The connection soft paper 2 is made of the same filter paper material as the paper core substrate 31.

In order to improve the filter effect, the filter element assembly 3 is including the refill base member 31 that is located the outside to and be located inboard combined adsorption body 32, refill base member 31 inside wall with combined adsorption body 32 one side adhesion is fixed, refill base member 31 upper and lower both ends tip with the flexible ring 1 adhesion of rectangle. After the primary filtration of the paper core substrate 31, the composite adsorbent 32 can further adsorb some fine particles, so that the filtering effect is better.

Further, the composite adsorbent 32 includes a breathable base cloth 321 and a plurality of activated carbon particles 322, one side of the breathable base cloth 321 is adhered to the paper core substrate 31, and the other side is adhered to the plurality of activated carbon particles 322. The activated carbon particles 322 can well adsorb fine particles, so that the filtering effect is better.

Preferably, the width of the flexible connecting part 13 is 2mm-8 mm. Preferably 5mm in width so that the joint is not easily damaged when bent and the shape is maintained after restoration.

Preferably, the four filter element assemblies 3 are equal in size, and when the filter element assemblies 3 are folded, the four filter element assemblies 3 are arranged into two layers and are arranged in parallel.

While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the utility model. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.

Claims

1. A foldable filter core which characterized in that:

the filter element assembly comprises four filter element assemblies (3) which are arranged in a rectangular shape, rectangular flexible rings (1) are arranged at two ends of each filter element assembly (3), and the rectangular flexible rings (1) are adhered to the end parts of the four filter element assemblies (3) at the same time;

an inwards concave notch part (12) is arranged at the top corner of the outer side of the rectangular flexible ring (1), adhesive connecting parts (11) matched with the end parts of the filter element assemblies (3) are arranged on two sides of the notch part (12), and flexible connecting parts (13) are arranged at the top corners of the inner sides of two adjacent adhesive connecting parts (11);

when the filter element is bent, the two notches (12) at opposite corners of the rectangle are closed, so that the two adjacent filter element components (3) are attached to the side surfaces of the filter element components, and the two notches (12) at the other opposite corners of the rectangle are unfolded to form an angle of 180 degrees.

2. The folding filter insert of claim 1, wherein:

adjacent two the lateral wall is provided with between filter element group spare (3) and connects soft paper (2), connect soft paper (2) simultaneously with both sides filter element group spare (3) lateral wall adhesion.

3. The folding filter insert of claim 1, wherein:

the filter element group spare (3) is including the refill base member (31) that is located the outside to and be located inboard combined adsorption body (32), refill base member (31) inside wall with combined adsorption body (32) one side adhesion is fixed, refill base member (31) upper and lower both ends tip with flexible ring (1) adhesion of rectangle.

4. The folding filter insert of claim 3, wherein:

the composite adsorbent (32) comprises air-permeable base cloth (321) and a plurality of activated carbon particles (322), wherein one side of the air-permeable base cloth (321) is adhered to the paper core substrate (31), and the other side of the air-permeable base cloth is adhered to the activated carbon particles (322).

5. The folding filter insert of claim 1, wherein:

the width of the flexible connecting part (13) is 2mm-8 mm.

6. The folding filter insert of claim 1, wherein:

the four filter element assemblies (3) are equal in size, and when the filter element assemblies are folded, the four filter element assemblies (3) are arranged into two layers of two parallel filter elements.