Integrated dust removal filter cartridge structure
The filter cartridge design with a snap-fit assembly structure solves the problems of complicated and wasteful replacement of existing filter cartridges, and realizes convenient replacement of the filter paper adsorption layer and efficient utilization of components.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINING FUTURE FILTRATION SYST CO LTD
- Filing Date
- 2025-07-03
- Publication Date
- 2026-08-04
AI Technical Summary
When existing dust collector filter cartridges need to be replaced after a period of use, the overall structure is complex and wasteful, and the external filter layer cannot be replaced efficiently.
It adopts a snap-fit assembly structure, which combines a support concave ring cover, snap-fit positioning block and annular positioning retaining ring to realize convenient installation and disassembly of filter cartridge components, only the external pleated filter paper adsorption layer needs to be replaced.
It enables convenient installation and disassembly of filter cartridge components, reduces unnecessary waste, and improves replacement efficiency and flexibility.
Smart Images

Figure CN224585571U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of integrated dust collector filter cartridge structure, and more specifically, to an integrated dust collector filter cartridge structure. Background Technology
[0002] An air filter cartridge is a type of filter primarily used to filter particulate matter and impurities from gases, ensuring air cleanliness. It is commonly referred to as an air filter cartridge, air purifier, or style. Dust collector filter cartridges are star-shaped cartridges made by folding stiff filter media of a certain length into pleats and bonding them end-to-end. These cartridges have no cage-like structure, making installation easy. Filter cartridges come in various types, ranging from thin and long to thick and short. Thin, long cartridges have larger gaps and angles between pleats, with fewer and shallower pleats, resulting in a filtration area 2-5 times larger than filter bags of the same diameter and length. They are easy to clean and provide good performance; suitable for filtering dust concentrations ≥15g / m³, with a filtration velocity of 0.6-1.2m / min. The large diameter, short length, numerous and deep pleats, and small gaps between pleats result in a large filtration area, 14 to 35 times larger than that of a filter bag of the same diameter and length. This makes it suitable for installation in confined spaces. However, due to the small pleat angles, dust easily accumulates, making cleaning difficult. It is suitable for filtering dust concentrations ≤5g / m³, and the filtration velocity should not exceed 0.6m / min. There are three installation methods for cartridge pulse dust collectors: vertical, inclined, and horizontal.
[0003] In existing technologies, such as the authorized publication number CN215962676U, this utility model discloses a dust collector filter cartridge with a multi-layer filtration structure, relating to the field of dust collector filter cartridge technology. It addresses the problem that existing dust collector filter cartridges, which are all single-layer filter screen structures, cannot achieve their designed filtration values after a period of use. The dust collector filter cartridge body has a cover end plate on its upper part, a first filter screen on its inner side, a first inner cavity inside the first filter screen, a second filter screen inside the first inner cavity, a flow guide baffle on one side between the second and first filter screens, a second inner cavity inside the second filter screen, and a rotating shaft inside the second inner cavity. The rotating shaft is fixedly connected to the second filter screen via four second connecting rods.
[0004] In the existing integrated dust collector filter support cylinder body, the outer filter layer first adsorbs dust during filtration and needs to be replaced after a period of use. However, when replacing the existing integrated dust collector filter support cylinder body, all components such as the internal metal mesh and cover are replaced, which will result in unnecessary waste, and the overall structure of the filter support cylinder body is complicated to assemble. Utility Model Content
[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide an integrated dust collector filter cartridge structure. By adopting a snap-fit assembly structure, all components can be installed as a whole. When replacing it, only the outer pleated filter paper adsorption layer needs to be replaced. Installation and disassembly are convenient, and replacement is easy, thus avoiding unnecessary waste.
[0006] To solve the above problems, the present invention adopts the following technical solution.
[0007] An integrated dust collector filter cartridge structure includes a filter support cylinder body. A pleated filter paper adsorption layer is sleeved on the outer surface of the filter support cylinder body. A support concave ring cover is snapped onto the outer surfaces of the filter support cylinder body and the pleated filter paper adsorption layer. The support concave ring cover is snapped onto the inner surface of the filter support cylinder body. A protrusion is provided on the inner surface of the support concave ring cover, and a sliding groove is provided on the inner surface of the protrusion. A spring and a snap-fit positioning block are slidably connected within the sliding groove. The snap-fit positioning block is snapped onto the inner surface of the filter support cylinder body. An annular positioning retaining ring is fixedly connected to the outer surface of the filter support cylinder body. The outer surface of the pleated filter paper adsorption layer is snapped onto the inner surface of the annular positioning retaining ring. By adopting a snap-fit assembly structure, all components can be installed as a single unit. When replacing, only the outer pleated filter paper adsorption layer needs to be replaced. Installation and disassembly are convenient, and replacement is easy, avoiding unnecessary waste.
[0008] Furthermore, a support ring is fixedly connected to the upper and lower surfaces of the filter support cylinder body, and a snap-fit interface is provided on the outer surface of the support ring, and the outer surface of the snap-fit positioning block snaps into the inner surface of the snap-fit interface.
[0009] Furthermore, a toggle block is fixedly connected to the upper surface of the snap-fit positioning block, and the toggle block extends out of the slide groove.
[0010] Furthermore, the pleated filter paper adsorption layer is tightly fitted onto the outer surface of the filter support cylinder body, with one end of the pleated filter paper adsorption layer tightly engaged with the inner surface of the support concave ring cover, and the other end tightly engaged with the inner surface of the annular positioning retaining ring.
[0011] Furthermore, the snap-fit positioning blocks are distributed on the inner two end surfaces of the supporting concave ring cover.
[0012] Furthermore, the actuating block adopts a convex snap-fit block structure, and its outer end snap-fit protrusion is provided with an inclined cut.
[0013] Furthermore, the main body of the filter support cylinder is a metal mesh cylinder, and its support ring is welded and fixed to the end face of the main body of the filter support cylinder.
[0014] Compared with existing technologies, the advantages of this utility model are:
[0015] (1) By adopting a snap-fit assembly structure, all components can be installed as a whole. When replacing them, only the external pleated filter paper adsorption layer needs to be replaced. Installation and disassembly are convenient and replacement is easy, and it will not cause unnecessary waste. Attached Figure Description
[0016] Figure 1 This is a first schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a second schematic diagram of the overall structure of this utility model;
[0018] Figure 3 This is a schematic cross-sectional view of the overall structure of this utility model;
[0019] Figure 4 This is a partial structural diagram of the filter support cylinder of this utility model;
[0020] Figure 5 This is a partial structural diagram of the toggle block of this utility model.
[0021] Explanation of the labels in the diagram:
[0022] 1. Filter support cylinder body, 2. Pleated filter paper adsorption layer, 3. Support concave ring cover, 4. Annular positioning retaining ring, 5. Spring, 6. Snap-fit positioning block, 100. Support ring, 101. Snap-fit interface, 7. Toggle block. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Example 1
[0025] Please see Figure 1-5An integrated dust collector filter cartridge structure includes a filter support cylinder body 1, a pleated filter paper adsorption layer 2 sleeved on the outer surface of the filter support cylinder body 1, a support concave ring cover 3 snapped onto the outer surface of the filter support cylinder body 1 and the pleated filter paper adsorption layer 2, and the support concave ring cover 3 snapped onto the inner surface of the filter support cylinder body 1. The inner surface of the support concave ring cover 3 has a protrusion, and the inner surface of the protrusion has a sliding groove. A spring 5 and a snap-fit positioning block 6 are slidably connected within the sliding groove. The snap-fit positioning block 6 is snapped onto the inner surface of the filter support cylinder body 1. An annular positioning retaining ring 4 is fixedly connected to the outer surface of the filter support cylinder body 1, and the outer surface of the pleated filter paper adsorption layer 2 is snapped onto the inner surface of the annular positioning retaining ring 4. By adopting a snap-fit assembly structure, all components can be installed as a single unit. When replacing, only the outer pleated filter paper adsorption layer needs to be replaced. Installation and disassembly are convenient, and replacement is easy, avoiding unnecessary waste.
[0026] A support ring 100 is fixedly connected to the upper and lower surfaces of the filter support cylinder body 1, and a snap-fit interface 101 is provided on the outer surface of the support ring 100. The outer surface of the snap-fit positioning block 6 snaps into the inner surface of the snap-fit interface 101. This makes it easy for the snap-fit positioning block 6 to snap into the snap-fit interface 100 for positioning, and it can be snapped and fixed tightly. It is easy to install and easy to disassemble.
[0027] A toggle block 7 is fixedly connected to the upper surface of the snap-fit positioning block 6. The toggle block 7 extends out of the slide groove. The toggle block 7 can be pulled to move during use, which can cause the toggle block 7 to slide and cause the snap-fit positioning block 6 to slide away from the snap-fit interface 101, and the support recessed ring cover 3 can be pulled out. It is easy to disassemble.
[0028] The pleated filter paper adsorption layer 2 is tightly fitted onto the outer surface of the filter screen support cylinder body 1. One end of the pleated filter paper adsorption layer 2 is tightly engaged with the inner surface of the support concave ring cover 3, and the other end is tightly engaged with the inner surface of the annular positioning retaining ring 4; the engagement is convenient.
[0029] The snap-fit positioning blocks 6 are distributed on the inner two ends of the support concave ring cover 3; they can be snapped and fixed to the metal mesh tube 1 from the left and right sides, which is convenient to install and snap-fit.
[0030] The snap-fit positioning block 6 adopts a convex snap-fit block structure, and its outer end snap-fit protrusion is provided with an inclined cut; when snapping, it can be snapped into the snap-fit interface 101 through the snap-fit protrusion at the outer end.
[0031] The filter support cylinder body 1 is a metal mesh cylinder, and its support ring 100 is welded and fixed to the end face of the filter support cylinder body 1; the fixing is firm.
[0032] In use, a support concave ring cover 3 is snapped onto the outer surface of the filter support cylinder body 1 and the pleated filter paper adsorption layer 2. The support concave ring cover 3 is snapped onto the inner surface of the filter support cylinder body 1. An annular positioning retaining ring 4 is fixedly connected to the outer surface of the filter support cylinder body 1. The outer surface of the pleated filter paper adsorption layer 2 is snapped onto the inner surface of the annular positioning retaining ring 4. The pleated filter paper adsorption layer 2 is tightly fitted onto the outer surface of the filter support cylinder body 1. One end of the pleated filter paper adsorption layer 2 is tightly snapped onto the inner surface of the support concave ring cover 3, and the other end is tightly fitted onto the inner surface of the support concave ring cover 3. The snap-fit is attached to the inner surface of the annular positioning retaining ring 4; the snap-fit is convenient; when the cover is attached to the supporting concave ring cover 3, a protrusion is provided on the inner surface of the supporting concave ring cover 3, and a sliding groove is provided on the inner surface of the protrusion. A spring 5 and a snap-fit positioning block 6 are slidably connected in the sliding groove. During installation, the snap-fit positioning block 6 snaps onto the inner surface of the filter screen support cylinder body 1, and the outer surface of the snap-fit positioning block 6 snaps onto the inner surface of the snap-fit interface 101; this facilitates the snap-fit positioning block 6 to snap into the snap-fit interface 100 for positioning, and can be tightly snapped and fixed. It is convenient to install and disassemble.
[0033] During disassembly, a toggle block 7 is fixedly connected to the upper surface of the snap-fit positioning block 6, and the toggle block 7 extends out of the slide groove. The toggle block 7 can be pulled to move during use, which can cause the toggle block 7 to slide and cause the snap-fit positioning block 6 to slide out of the snap-fit interface 101, so that the support concave ring cover 3 can be pulled out, which can facilitate disassembly and is convenient. Installation is convenient and disassembly is convenient. When replacing, the pleated filter paper adsorption layer 2 can be replaced, and other parts can continue to be used without causing unnecessary waste. Different materials of pleated filter paper adsorption layer 2 can be replaced as needed, which is convenient to use.
[0034] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.
Claims
1. An integrated dust removal filter cartridge structure comprising a filter screen support cartridge body (1), characterized in that: The outer surface of the filter support cylinder body (1) is fitted with a pleated filter paper adsorption layer (2). The outer surfaces of the filter support cylinder body (1) and the pleated filter paper adsorption layer (2) are fitted with a support concave ring cover (3). The support concave ring cover (3) is fitted with the inner surface of the filter support cylinder body (1). The inner surface of the support concave ring cover (3) is provided with a protrusion. The inner surface of the protrusion is provided with a sliding groove. A spring (5) and a locking positioning block (6) are slidably connected in the sliding groove. The locking positioning block (6) is locked in the inner surface of the filter support cylinder body (1). The outer surface of the filter support cylinder body (1) is fixedly connected with an annular positioning retainer (4). The outer surface of the pleated filter paper adsorption layer (2) is locked in the inner surface of the annular positioning retainer (4).
2. The integrated dust removal filter cartridge structure according to claim 1, characterized in that: The upper and lower surfaces of the filter support cylinder body (1) are fixedly connected to a support ring (100), and the outer surface of the support ring (100) is provided with a snap-fit interface (101), and the outer surface of the snap-fit positioning block (6) is snapped onto the inner surface of the snap-fit interface (101).
3. The integrated dust filtration cartridge structure of claim 2, wherein: The upper surface of the snap-fit positioning block (6) is fixedly connected to a toggle block (7), which extends out of the groove.
4. The integrated dust filtration cartridge structure of claim 1, wherein: The pleated filter paper adsorption layer (2) is tightly fitted onto the outer surface of the filter support cylinder body (1). One end of the pleated filter paper adsorption layer (2) is tightly engaged with the inner surface of the support concave ring cover (3), and the other end is tightly engaged with the inner surface of the annular positioning retaining ring (4).
5. The integrated dust filtration cartridge structure of claim 1, wherein: The snap-fit positioning blocks (6) are distributed on the inner two ends of the support concave ring cover (3).
6. The integrated dust filtration cartridge structure of claim 3, wherein: The actuating block (7) adopts a convex snap-fit block structure, and its outer end snap-fit protrusion is provided with an inclined cut.
7. The integrated dust filtration cartridge structure of claim 2, wherein: The filter support cylinder body (1) is a metal mesh cylinder, and its support ring (100) is welded and fixed to the end face of the filter support cylinder body (1).