Round filter element convenient for ash removal
By using a star-shaped filter element cross-section design and a two-component adhesive sealing structure, the problem of inconvenient dust cleaning of existing circular filter elements is solved, achieving efficient and convenient dust cleaning.
Patent Information
- Application Number
- CN202520107348.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-01-17
AI Technical Summary
Existing circular filter cartridges are difficult and time-consuming to clean after a period of use due to the inconvenience of dust removal.
It adopts a star-shaped filter element cross-section design and a two-component adhesive sealing structure. There is no adhesive between the outer folds of the filter paper, allowing dust to be cleaned from the gaps. The bottom is sealed with two-component adhesive, and the inner folds of the filter paper are sealed with hot melt adhesive.
It achieves efficient dust removal, simplifies the dust removal process, and improves cleaning efficiency and effectiveness.
Smart Images

Figure CN223732385U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter technology, specifically a circular filter element that is easy to clean. Background Technology
[0002] The conventional circular filter cartridge structure involves gluing the filter paper to both ends with an upper and lower cover. After the filter has been used for a period of time, the filter paper accumulates dust, and the dust can only be cleaned by sweeping it out from the side of the filter paper. This is not only inconvenient and time-consuming, but also difficult to clean thoroughly. Summary of the Invention
[0003] To overcome the shortcomings of the prior art, this utility model provides a circular filter element that is easy to clean. Technicians can use this filter element to easily clean out the dust, which can be cleaned out from the bottom along the crests of the filter element.
[0004] To achieve the above objectives, a circular filter element that is easy to clean is designed. The filter includes a top cover, a filter element, hot melt adhesive, and a two-component adhesive. The filter element is cylindrical, and its outer surface has several filter element crests. The gaps inside the filter element crests are coated with hot melt adhesive. One end of the filter element is connected to the top cover, and the other end of the filter element is connected to the two-component adhesive.
[0005] The top cover can be made of ABS material, and the top cover is connected to the filter element by sealant.
[0006] The filter element is formed by rolling folded filter paper into a cylindrical shape, and the cross-section of the filter element is star-shaped.
[0007] The star-shaped filter element cross-section is composed of several triangular protrusions, with the outer protrusions being the filter element peaks and the inner concave protrusions being the filter element valleys.
[0008] The two-component adhesive is cylindrical in shape, and the diameter of the cylindrical adhesive needs to be smaller than the inner diameter formed by the troughs of the cylindrical filter element.
[0009] Compared with the prior art, this utility model uses glue to seal one end of the filter paper. The filter paper is sealed with glue between the folds of two adjacent filter paper on the inner side. The round hole of the bottom filter element is sealed with two-component glue. There is no glue between the folds on the outer side of the filter paper. Dust can be cleaned down along the fold lines of the gaps. The dust removal is convenient, efficient and very easy to clean. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of this utility model.
[0011] Figure 2 This is a top view of the present invention.
[0012] Figure 3This is a magnified view of a portion of the two-component adhesive.
[0013] Figure 4 This is a schematic diagram of the filter element unfolded.
[0014] Figure 5 This is a schematic diagram of the filter cartridge assembly.
[0015] Figure 6 This is a dispensing diagram for a two-component adhesive.
[0016] See Figures 1 to 6 1 is the top cover, 2 is the filter element, 2.1 is the peak of the filter element, 2.2 is the trough of the filter element, 2.3 is the pleated filter paper, 3 is the hot melt adhesive, and 4 is the two-component adhesive. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings.
[0018] like Figure 1 As shown, the filter includes a top cover 1, a filter element 2, hot melt adhesive 3, and a two-component adhesive 4, such as... Figure 2 As shown, the filter element 2 is cylindrical, and its outer surface is provided with several filter element peaks 2.1, such as... Figure 5 As shown, filter element 2 is formed by rolling pleated filter paper 2.3 into a cylindrical shape. The cross-section of filter element 2 is star-shaped. Filter paper 2.3 is as follows... Figure 4 As shown, the outer surface of the filter element 2 is provided with several filter element peaks 2.1. The cross-section of the star-shaped filter element is composed of triangular protrusions. The gaps inside the filter element peaks 2.1 are coated with hot melt adhesive 3. The hot melt adhesive 3 has stable chemical properties, is non-toxic and odorless, and is used for sealing. One end of the filter element 2 is connected to the top cover 1. The protruding part on the outside is the filter element peak 2.1, and the concave part on the inside is the filter element valley 2.2.
[0019] The top cover 1 can be made of ABS material, and the top cover 1 is connected to the filter element 2 by sealant.
[0020] The other end of filter element 2 is connected to a two-component adhesive 4. The two-component adhesive 4 is cylindrical in shape, and its diameter is smaller than the inner diameter formed by the trough 2.2 of the cylindrical filter element 2. The two-component adhesive 4 is used to seal the through hole at the bottom of filter element 2, such as... Figure 6 As shown, filter element 2 first needs to be inserted into the injection mold, the two-component adhesive is injected, and then it is demolded.
[0021] This utility model is specifically designed for the rapid cleaning of filter elements. Technicians can fold the filter paper 2.3 into multiple filter element peaks 2.1 and roll the filter paper 2.3 into a cylindrical shape. The inner sides of adjacent filter element peaks 2.1 are sealed with hot melt adhesive 3. After a period of use, dust will only remain on the outer sides of adjacent filter element peaks 2.1. At this point, the other end of the filter element 2 is sealed with a smaller diameter cylindrical two-component adhesive 4. Figure 3As shown, the bottom outer edges of the two adjacent filter element peaks 2.1 are unobstructed, allowing dust to be removed from below.
Claims
1. A circular filter cartridge facilitating ash clean-up, comprising a filter, characterized by: The filter comprises an upper cover (1), a filter core (2), hot melt adhesive (3), and two-component adhesive (4), the filter core (2) is in a cylindrical shape, the outer surface of the filter core (2) is provided with a plurality of filter core wave crests (2.1), the inside of the filter core wave crest (2.1) is coated with hot melt adhesive (3), one end of the filter core (2) is connected with the upper cover (1), and the other end of the filter core (2) is connected with the two-component adhesive (4).
2. The circular filter cartridge of claim 1, wherein: The upper cover (1) can be made of ABS material, and the upper cover (1) is connected with the filter core (2) through sealing glue.
3. The circular filter cartridge of claim 1, wherein: The filter core (2) is formed by winding a folded filter paper (2.3) into a cylindrical shape, and the cross section of the filter core (2) is in a star shape.
4. The circular filter cartridge of claim 3, wherein: The cross section of the filter core in the star shape is composed of a plurality of triangular protrusions, the outer side protrusion is the filter core wave crest (2.1), and the inner side concave is the filter core wave trough (2.2).
5. The circular filter cartridge of claim 1, wherein: The two-component adhesive (4) is in a cylindrical shape, and the diameter of the two-component adhesive (4) is smaller than the inner diameter formed by the filter core wave trough (2.2) of the cylindrical filter core (2).