Filter with filter element capable of winding paper up and down
By designing an upper and lower paper-wound filter element structure, and utilizing a separator plate and support structure, the filtration accuracy and area of the filter element are improved, solving the problem of small filtration area in existing filter elements and achieving a more efficient filtration effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENJIANG FIRST FILTRATION TECHNOLOGY CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-08
AI Technical Summary
The existing filter cartridges have a small filtration area, resulting in low filtration accuracy.
It adopts an upper and lower paper-wound filter element structure, including a shell, a partition plate, a support strip, a support column, a baffle and annular ribs. Through the joint filtration of the first and second paper-wound filter elements, the filtration accuracy and area are improved.
It improves filtration accuracy and speed, increases filtration area, and enhances filtration effect and dirt holding capacity.
Smart Images

Figure CN224207593U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oil filter technology, specifically a filter with upper and lower paper-wound filter elements. Background Technology
[0002] The precision filtration industry for lubricating oil primarily uses it in industrial equipment lubrication systems, hydraulic systems, engine systems, and other mechanical equipment that uses lubricating oil.
[0003] Existing filter elements consist of a core and filter paper. The filter paper is continuously folded in a V-shape along the circumference of the core to form a cylinder. Fuel enters the filter element from its outer circumference, is filtered, and then enters the inner cavity of the core. The technical problem with the above-mentioned filter elements is that their overall filtration area is relatively small, resulting in low filtration accuracy. To address this, we propose a top-and-bottom wound paper filter element. Utility Model Content
[0004] The purpose of this invention is to provide a top-and-bottom paper-wound filter to solve the problems in the prior art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a top and bottom paper-wound filter element, comprising a housing, the housing comprising a housing body, a partition plate disposed in the middle of the housing body, a through hole being provided in the middle of the partition plate, a first paper-wound filter element and a second paper-wound filter element being disposed on both sides of the housing body located on the partition plate, a top cover being installed at one end of the housing body located on the first paper-wound filter element, and a bottom cover being installed at one end of the housing body located on the second paper-wound filter element.
[0006] Preferably, multiple support strips are evenly distributed on both sides of the partition plate, and multiple support columns are provided between adjacent support strips of the partition plate.
[0007] Preferably, the partition plate is provided with a plurality of baffles evenly arranged at the through hole, and the two ends of the baffles extend into the interior of the first paper-wound filter element and the interior of the second paper-wound filter element, respectively.
[0008] Preferably, the edges of both sides of the partition plate are provided with annular ribs, and the two annular ribs are respectively inserted into the interior of the first paper-wound filter element and the interior of the second paper-wound filter element.
[0009] Preferably, the cross-sectional shape of the annular rib is triangular.
[0010] Preferably, both the top cover and the bottom cover have a mesh structure.
[0011] Compared with the prior art, the beneficial effects of this utility model are: the filtration accuracy is improved by the joint filtration of the first and second paper-wound filter elements; the two oil inlet surfaces at the top and bottom double the filtration speed; and compared with the V-shaped pleated filter element, the paper-wound filter element can increase the filtration area, thereby improving the filtration effect and dirt holding capacity. Attached Figure Description
[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is an exploded view of this utility model;
[0015] Figure 3 This is the front view of this utility model;
[0016] Figure 4 This is a utility model Figure 3 Sectional view of AA;
[0017] Figure 5 This is a schematic diagram of the structure of the shell of this utility model;
[0018] Figure 6 This is a top view of the casing of this utility model;
[0019] Figure 7 This is a utility model Figure 6 A cross-sectional view of BB.
[0020] In the diagram: 1. Shell; 2. Top cover; 3. Bottom cover; 4. First paper-wound filter element; 5. Second paper-wound filter element; 11. Shell body; 12. Support column; 13. Annular rib; 14. Divider plate; 15. Support bar; 16. Baffle. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.
[0022] Please see Figure 1-7 In this embodiment of the present invention, a top and bottom paper-wound filter includes a housing 1, the housing 1 including a housing body 11, a partition plate 14 is provided in the middle of the housing body 11, a through hole is provided in the middle of the partition plate 14, a first paper-wound filter 4 and a second paper-wound filter 5 are respectively provided on both sides of the housing body 11 located on the partition plate 14, a top cover 2 is installed at one end of the housing body 11 located on the first paper-wound filter 4, and a bottom cover 3 is installed at one end of the housing body 11 located on the second paper-wound filter 5, both the top cover 2 and the bottom cover 3 are mesh structures.
[0023] Multiple support strips 15 are evenly distributed on both sides of the partition plate 14. Multiple support columns 12 are provided between adjacent support strips 15 on the partition plate 14. Multiple baffles 16 are evenly provided at the through holes of the partition plate 14. The two ends of the baffles 16 extend into the interior of the first paper-wound filter element 4 and the second paper-wound filter element 5, respectively. The baffles 16 can limit the movement of the first paper-wound filter element 4 and the second paper-wound filter element 5. Annular ribs 13 are provided on both sides of the partition plate 14. Two annular ribs 13 are inserted into the interior of the first paper-wound filter element 4 and the second paper-wound filter element 5, respectively. The cross-sectional shape of the annular ribs 13 is triangular. The annular ribs 13 improve the stability of the first paper-wound filter element 4 and the second paper-wound filter element 5. The filtration accuracy is improved through the joint filtration of the first paper-wound filter element 4 and the second paper-wound filter element 5. Moreover, compared with the V-shaped pleated filter element, the paper-wound filter element can increase the filtration area, thereby improving the filtration effect.
[0024] The working principle of this utility model is as follows: the filtration accuracy is improved by the joint filtration of the first paper-wound filter element 4 and the second paper-wound filter element 5; the two oil inlet surfaces at the top and bottom double the filtration speed; and compared with the V-shaped pleated filter element, the paper-wound filter element can increase the filtration area, thereby improving the filtration effect and dirt holding capacity.
[0025] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A top-and-bottom wound paper filter, comprising a housing (1), characterized in that: The housing (1) includes a housing body (11), a partition plate (14) is provided in the middle of the housing body (11), a through hole is provided in the middle of the partition plate (14), a first paper-wound filter element (4) and a second paper-wound filter element (5) are respectively provided on both sides of the housing body (11) located on the partition plate (14), a top cover (2) is installed at one end of the housing body (11) located on the first paper-wound filter element (4), and a bottom cover (3) is installed at one end of the housing body (11) located on the second paper-wound filter element (5).
2. The top and bottom paper-wound filter element according to claim 1, characterized in that: Multiple support strips (15) are evenly distributed on both sides of the partition plate (14), and multiple support columns (12) are provided between adjacent support strips (15) of the partition plate (14).
3. The top and bottom paper-wound filter element according to claim 1, characterized in that: The partition plate (14) is provided with a plurality of baffles (16) evenly arranged at the through hole, and the two ends of the baffles (16) extend into the interior of the first paper-wound filter element (4) and the second paper-wound filter element (5), respectively.
4. A filter with upper and lower paper winding cartridges according to claim 1, characterized in that: The two sides of the partition plate (14) are provided with annular ribs (13), and the two annular ribs (13) are respectively inserted into the interior of the first paper-wound filter element (4) and the interior of the second paper-wound filter element (5).
5. A filter with upper and lower paper winding cartridges according to claim 4, characterized in that: The cross-sectional shape of the annular reinforcement (13) is triangular.
6. A filter with upper and lower paper winding cartridges according to claim 1, characterized in that: Both the top cover (2) and the bottom cover (3) are mesh structures.