Framework structure for backwashing filter element
By designing a detachable backwash filter element skeleton structure, the problem of wasted consumables during filter element replacement is solved, enabling the filter element to be detachable and reused, extending its service life and reducing the amount of consumables used.
Patent Information
- Application Number
- CN202520415931.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-11
AI Technical Summary
After a period of use, existing backwash filter cartridges accumulate solid impurities inside, leading to increased pressure and reduced liquid filtration volume. Furthermore, it is impossible to distinguish which components can still be used during replacement, resulting in waste of consumables.
Design a detachable frame structure, including a chassis and a top plate, to achieve the detachability and reusability of the filter element through components such as support columns, sealing strips, sliding grooves and buckles, ensuring a sealing effect.
It enables the filter cartridge to be detachable and reusable, reducing the amount of consumables used, extending service life, and maintaining sealing and filtration efficiency.
Smart Images

Figure CN223861451U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filtration equipment technology, specifically a skeleton structure for backwashing filter cartridges. Background Technology
[0002] Backwash filter cartridges are the core components of backwash filters, used to filter impurities in fluids. They are mostly in the form of pleated corrugations or wire winding filters, and consist of end caps, a support frame, a filter layer, and a sealing ring. After a period of use, a lot of solid impurities will accumulate inside the filter cartridge, the pressure will increase, the liquid filtration volume will decrease, and the filter cartridge will need to be replaced.
[0003] Currently, most filter cartridges have a single integrated structure, including the filter layer, frame, and end caps. When replacing the filter cartridge, all parts are replaced at the same time. However, only the contaminated filter layer is actually unusable, while the other components still have value for continued use, resulting in a waste of consumables. Utility Model Content
[0004] The purpose of this invention is to provide a skeleton structure for backwashing filter cartridges to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A skeleton structure for a backwash filter cartridge, comprising:
[0007] The chassis structure includes a chassis body, a sliding plate, and a sliding groove. A support column is fixedly installed at the edge of the upper surface of the chassis body, the sliding plate is fixedly installed at the upper end of the support column, and the sliding groove is intersected and opened on both the inner and outer sides of the sliding plate.
[0008] The top plate structure includes a top plate body, the bottom edge of the top plate body and the upper end of the support column are slidably engaged with a filter element structure, and the filter element structure is clamped between the chassis body and the top plate body.
[0009] Furthermore, sealing strips are fixedly installed on both sides of the support column.
[0010] Furthermore, the chassis structure also includes a buckle groove, which is formed on the upper edge of the inner side of the skateboard.
[0011] Furthermore, the top plate structure also includes:
[0012] A slot is inserted into the edge of the top plate body and slides into the sliding plate.
[0013] A limiting slide post is fixedly installed at the lower opening of the slot, and the limiting slide post is slidably engaged with the slide groove;
[0014] A spring clip is fixedly installed on the edge of the upper surface of the top plate body, and the clip plate of the spring clip is movably connected to the clip groove.
[0015] Furthermore, filter media slots are provided on one side of the sealing strip, the upper edge of the chassis body, and the bottom edge of the top plate body; and sealing plate slots are provided on both the inner and outer edges of the upper opening of the chassis body and the bottom opening of the top plate body.
[0016] Furthermore, the filter element structure also includes:
[0017] A snap-fit frame, wherein the four edges of the snap-fit frame are snapped into the filter material slots;
[0018] The filter element is fixedly installed inside the snap-fit frame;
[0019] Inner mesh plate, the inner mesh plate being attached to the inner surface of the filter element;
[0020] An outer mesh plate, which is attached to the outer surface of the filter element;
[0021] The plug-in strip is fixedly installed on the upper and lower edges of the inner and outer mesh panels, and the plug-in strip is inserted into the sealing plate slot.
[0022] Compared with the prior art, the beneficial effects of this utility model are:
[0023] 1. When it is necessary to clean or replace the filter element structure, the top plate body can be lifted upwards, allowing the top plate body to slide and rise a certain distance on the upper end of the support column. This increases the actual distance between the base plate body and the top plate body, thereby providing room for the filter element structure to move. The filter element structure can then be directly removed for cleaning or replacement, giving the overall skeleton structure the characteristic of being reusable, improving its service life, and reducing the amount of consumables used.
[0024] 2. After raising the main body of the top plate, first use the interlocking strips and sealing plate slots to snap on each inner mesh plate. Then, use the snap-fit frame and filter media slots to snap on each filter element. Finally, install each outer mesh plate against the outside of the filter element. At this time, the two edges of the outer surface of the inner mesh plate and the two edges of the inner surface of the outer mesh plate are respectively attached to the inner and outer sides of the sealing strip. The snap-fit frame and filter media slots are snapped on to ensure the sealing effect of the joints on both sides. Press down the main body of the top plate to clamp and limit the overall structure of the filter element, realizing the installation. The inner and outer mesh plates are supported against the inner and outer sides of the filter element. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0026] Figure 2This is a schematic diagram of the chassis structure in this utility model;
[0027] Figure 3 This is a schematic diagram of the top plate structure in this utility model;
[0028] Figure 4 This is a schematic diagram of the filter element structure in this utility model.
[0029] In the diagram: 1. Chassis structure; 101. Chassis main body; 102. Support column; 103. Sealing strip; 104. Filter media slot; 105. Slide plate; 106. Slide groove; 107. Clip groove; 108. Sealing plate slot; 2. Top plate structure; 201. Top plate main body; 202. Slot; 203. Limiting slide column; 204. Spring buckle; 3. Filter element structure; 301. Snap-fit frame; 302. Filter element; 303. Inner mesh plate; 304. Outer mesh plate; 305. Insertion strip. Detailed Implementation
[0030] 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.
[0031] Please see Figure 1-4 In this embodiment of the present invention, a skeleton structure for a backwashing filter element includes a chassis structure 1, a top chassis structure 2, and a filter element structure 3. The chassis structure 1 includes a chassis body 101, and a support column 102 is fixedly installed at the edge of the upper surface of the chassis body 101. The top chassis structure 2 includes a top chassis body 201, and the bottom edge of the top chassis body 201 is slidably engaged with the upper end of the support column 102. The filter element structure 3 is clamped between the chassis body 101 and the top chassis body 201.
[0032] Specifically, when it is necessary to clean or replace the filter element structure 3, the top plate body 201 can be pulled upwards, causing the top plate body 201 to slide and rise a certain distance on the upper end of the support column 102, increasing the actual distance between the base plate body 101 and the top plate body 201, thereby providing room for the filter element structure 3 to move, and thus the filter element structure 3 can be directly removed for cleaning or replacement, giving the overall skeleton structure the characteristic of reusability, improving service life and reducing the amount of consumables.
[0033] Example 1
[0034] like Figure 1-3As shown, in this embodiment, the chassis structure 1 further includes a sliding plate 105, a sliding groove 106, and a buckle groove 107. The sliding plate 105 is fixedly installed on the upper end of the support column 102. The sliding groove 106 is intersected and opened on both the inner and outer sides of the sliding plate 105. The buckle groove 107 is opened on the upper edge of the inner side of the sliding plate 105. The top plate structure 2 further includes a slot 202, a limiting sliding post 203, and a spring buckle 204. The slot 202 is intersected and opened at the edge of the top plate body 201, and the slot 202 is slidably engaged with the sliding plate 105. The limiting sliding post 203 is fixedly installed at the lower opening of the slot 202, and the limiting sliding post 203 is slidably engaged with the sliding groove 106. The spring buckle 204 is fixedly installed on the upper surface edge of the top plate body 201, and the buckle plate of the spring buckle 204 is movably engaged with the buckle groove 107.
[0035] In this embodiment, the sliding engagement of the slide plate 105 with the slot 202 allows the top plate body 201 to move freely a certain distance on the upper end of the support column 102. The sliding engagement of the limiting slide column 203 within the slide groove 106 restricts the range of motion of the top plate body 201. When the chassis body 101 and the top plate body 201 clamp the filter element structure 3, the upper end of the slide plate 105 passes through the upper surface of the slot 202 and is fastened into the latching groove 107 by the spring buckle 204, locking the position of the slide plate 105 and the top plate body 201 and maintaining the clamping state of the filter element structure 3.
[0036] Example 2
[0037] Based on Example 1, this invention supplements the specific methods for replacing and installing filter element 302 that were not mentioned in Example 1.
[0038] like Figure 1-4 As shown, in this embodiment, sealing strips 103 are fixedly installed on both sides of the support column 102; filter media slots 104 are provided on one side of the sealing strip 103, the upper edge of the chassis body 101, and the bottom edge of the top plate body 201; sealing plate slots 108 are provided on both the inner and outer edges of the upper opening of the chassis body 101 and the bottom opening of the top plate body 201; the filter element structure 3 also includes a snap-fit frame 301, a filter element 302, an inner mesh plate 303, and an outer mesh plate 304. The mesh plate 304 and the insert strip 305, the four sides of the snap-fit frame 301 are snapped together with the filter media slot 104; the filter element 302 is fixedly installed inside the snap-fit frame 301; the inner mesh plate 303 is attached to the inner surface of the filter element 302; the outer mesh plate 304 is attached to the outer surface of the filter element 302; the insert strip 305 is fixedly installed on the upper and lower sides of the inner mesh plate 303 and the outer mesh plate 304, and the insert strip 305 is inserted into the sealing plate slot 108.
[0039] In practice, after the top plate body 201 is raised, the inner mesh plates 303 are first clamped by interlocking the insert strips 305 and the sealing plate slots 108. Then, the filter elements 302 are clamped by interlocking the clamping frame 301 and the filter media slots 104. Finally, the outer mesh plates 304 are attached to the outside of the filter elements 302 for installation. At this time, the two edges of the outer surface of the inner mesh plate 303 and the two edges of the inner surface of the outer mesh plate 304 are respectively attached to the inner and outer sides of the sealing strip 103. The clamping frame 301 and the filter media slots 104 are clamped to ensure the sealing effect of the joints on both sides. The top plate body 201 is pressed down to clamp and limit the filter element structure 3 as a whole, thus realizing the installation. The inner mesh plates 303 and the outer mesh plates 304 are respectively supported by the inner and outer sides of the filter element 302.
[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A skeleton structure for a backwashing filter element, characterized in that, include: The chassis structure (1) includes a chassis body (101), a sliding plate (105), and a sliding groove (106). A support column (102) is fixedly installed at the edge of the upper surface of the chassis body (101). The sliding plate (105) is fixedly installed on the upper end of the support column (102). The sliding groove (106) is intersected and opened on both the inner and outer sides of the sliding plate (105). The top plate structure (2) includes a top plate body (201), the bottom edge of the top plate body (201) is slidably engaged with the upper end of the support column (102); The filter element structure (3) is clamped between the chassis body (101) and the top chassis body (201).
2. The skeleton structure for backwashing filter cartridges according to claim 1, characterized in that, Sealing strips (103) are fixedly installed on both sides of the support column (102).
3. The skeleton structure for backwashing filter cartridges according to claim 2, characterized in that, The chassis structure (1) also includes a buckle groove (107), which is formed on the upper inner edge of the slide plate (105).
4. The skeleton structure for backwashing filter cartridges according to claim 3, characterized in that, The top plate structure (2) also includes: A slot (202) is inserted into the edge of the top plate body (201), and the slot (202) is slidably engaged with the slide plate (105); A limiting slide post (203) is fixedly installed at the lower opening of the slot (202), and the limiting slide post (203) is slidably engaged with the slide groove (106); A spring clip (204) is fixedly installed on the upper surface edge of the top plate body (201), and the clip plate of the spring clip (204) is movably fastened to the clip groove (107).
5. The skeleton structure for backwashing filter cartridges according to claim 4, characterized in that, The sealing strip (103) is provided with filter material slots (104) on one side, the upper edge of the chassis body (101) and the bottom edge of the top plate body (201), and sealing plate slots (108) are provided on both the inner and outer edges of the upper opening of the chassis body (101) and the bottom opening of the top plate body (201).
6. The skeleton structure for backwashing filter cartridges according to claim 5, characterized in that, The filter element structure (3) also includes: The snap-fit frame (301) has four edges that snap into the filter material slot (104). The filter element (302) is fixedly installed inside the snap-fit frame (301); An inner mesh plate (303) is attached to the inner surface of the filter element (302); An outer mesh plate (304) is attached to the outer surface of the filter element (302); The plug strip (305) is fixedly installed on the upper and lower edges of the inner mesh plate (303) and the outer mesh plate (304), and the plug strip (305) is plugged into the sealing plate slot (108).