A composite flat plate filter structure
By designing circular holes and splicing tracks on the surface of the non-woven filter layer, and using double-headed hooks and cylindrical hanging methods, the filter layer is stably installed, solving the gap problem when the length of the filter mechanism is shortened, and improving the filtration effect and structural stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU MEEKO ENVIRONMENTAL TECH CO LTD
- Filing Date
- 2025-07-24
- Publication Date
- 2026-07-31
AI Technical Summary
In the prior art, when the length of the filter mechanism is shortened, large gaps easily appear between the upper and lower sides and the mounting frame, affecting the filtration effect.
The filter layer is made of non-woven fabric with round holes on the surface. A round seat is slidably installed inside the splicing rail and fixedly connected to a double-headed hook. The double-headed hook passes through the round hole and hangs on the cylindrical surface. Combined with the design of the side plate and the fixing plate, the filter layer can be quickly installed and fixed on the top, bottom and left and right edges.
This ensures that there are no large gaps at the top, bottom, left, and right edges of the non-woven filter layer after size adjustment, improving filtration capacity and structural stability, and enhancing filtration effect and service life.
Smart Images

Figure CN224573293U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of filter structure technology, specifically relating to a composite flat plate filter structure. Background Technology
[0002] Nonwoven fabric filtration relies primarily on its fiber structure and porosity. Nonwoven fabrics are cloth-like materials made from fibers through mechanical, thermal bonding, or chemical methods. Their fiber structure has a large specific surface area and uniform pore distribution, enabling them to effectively trap particulate matter in the air or suspended matter in liquids.
[0003] In the prior art, patent application (publication number: CN219318591U) discloses a flat-plate primary filter, including a first mounting frame and a second mounting frame. An adjustment mechanism is fixedly connected to the upper part of the first and second mounting frames. A movable plate is movably connected to the lower part of the first and second mounting frames. A first connecting groove is opened on the left inner wall of the first mounting frame. A first connecting rod is fixedly connected between the upper and lower groove walls of the first connecting groove. A second connecting groove is opened on the right inner wall of the second mounting frame. A second connecting rod is fixedly connected between the upper and lower groove walls of the second connecting groove. A filter mechanism is movably connected between the first and second connecting rods. The adjustable mechanism facilitates the adjustment of the length of the air filter, which can meet the installation requirements of different devices.
[0004] The filter mechanism in the prior art can change its size by adjusting the extension and retraction of the mechanism. However, since it only fixes the two sides of the filter mechanism, when the length of the filter mechanism is shortened, large gaps are likely to appear between the upper and lower sides and the mounting frame, which will affect the filtration effect of the filter mechanism. Utility Model Content
[0005] To address the problems mentioned in the background art, this utility model provides a composite flat plate filter structure, which solves the problem that large gaps easily appear between the upper and lower sides and the mounting frame when the length of the filter mechanism is shortened.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a composite flat plate filter structure, comprising:
[0007] A non-woven filter layer, wherein a circular hole 1 is formed on the surface of the non-woven filter layer, and a circular hole 2 is formed on the surface of the non-woven filter layer;
[0008] The splicing rail has a circular seat that is slidably installed inside it, and a double-headed hook is fixedly connected to the surface of the circular seat, the double-headed hook passing through a circular hole.
[0009] Side plates are slidably mounted on the surface of the splicing rail. A fixing plate is fixedly connected to the inner side of the side plates. A cylinder is fixedly connected to the side of the fixing plate. The non-woven filter layer is hung on the surface of the cylinder through two round holes.
[0010] As a further optimization, a circular plate is fixedly connected to one end of the cylinder, and the diameter of the circular plate is 2mm larger than the diameter of the second circular hole.
[0011] As a further optimization, the top of the fixing plate is provided with a threaded hole, and a bolt is installed in the internal thread of the threaded hole.
[0012] As a further optimization, the splicing rail includes:
[0013] The rail unit has a protrusion fixedly connected to one end, a round protrusion fixedly connected to the side of the protrusion, and a slot opened at the other end of the rail unit. A round groove is opened on the inner wall of the slot, and the protrusion is 1mm narrower than the slot.
[0014] As a further optimization, a through groove is provided on the upper surface of the rail unit, and a U-shaped rod is inserted into the inside of the through groove.
[0015] As a further optimization, the surface of the rail unit is fixedly connected with a protrusion, and the inner side of the side plate is provided with a groove corresponding to the protrusion.
[0016] As a further optimization, the inner side of the rail unit is provided with a groove for the circular seat to be slidably installed.
[0017] As a further optimization, the circular hole, the circular seat, and the double-headed hook are all arranged in a horizontal array and divided into two groups, with the circular seats and double-headed hooks in opposite directions in the two groups.
[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: by using a double-headed hook to pass through the first round hole and the non-woven filter layer to be hung on the cylindrical surface through the second round hole, the filter layer can be quickly installed and its upper, lower, left, and right edges can be fixed. This improves the filtration capacity of the non-woven filter layer. Since its upper, lower, left, and right edges are fixed, after adjusting the size of the non-woven filter layer by sliding the side plate, there will be no large gaps between the upper, lower, left, and right edges of the non-woven filter layer and the upper and lower splicing rails and left and right fixing plates, which can help improve the filtration capacity of the non-woven filter layer. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of this utility model, used together with the embodiments of this utility model to explain this utility model, and do not constitute a limitation on this utility model. In the drawings:
[0020] Figure 1 This is a complete structural schematic diagram of the present invention;
[0021] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;
[0022] Figure 3 This is a cross-section of the present invention. Figure 1 ;
[0023] Figure 4 This utility model Figure 3 Enlarged view at point B in the middle;
[0024] Figure 5 This utility model Figure 3 Enlarged view at point C;
[0025] Figure 6 This is a cross-section of the present invention. Figure 2 ;
[0026] Figure 7 This utility model Figure 6 Enlarged view of point D in the middle.
[0027] In the diagram: 1. Non-woven filter layer; 101. Hole 1; 102. Hole 2; 2. Splicing rail; 201. Rail unit; 202. Protrusion; 203. Round protrusion; 204. Slot; 205. Round groove; 206. Through groove; 207. U-shaped rod; 208. Protruding strip; 209. Groove; 3. Circular seat; 4. Double-headed hook; 5. Side plate; 6. Fixing plate; 7. Cylinder; 8. Circular piece; 9. Threaded hole; 10. Bolt; 11. Slide groove. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0029] like Figures 1 to 7 As shown, this utility model provides the following technical solution: a composite flat plate filter structure, comprising:
[0030] Non-woven filter layer 1, the surface of non-woven filter layer 1 has a first round hole 101 and a second round hole 102.
[0031] The splicing rail 2 has a circular seat 3 that is slidably installed inside it. A double-headed hook 4 is fixedly connected to the surface of the circular seat 3 and passes through the circular hole 101.
[0032] Side plates 5 are slidably installed on the surface of the splicing rail 2. A fixing plate 6 is fixedly connected to the inner side of the side plate 5. A cylinder 7 is fixedly connected to the side of the fixing plate 6. The non-woven filter layer 1 is hung on the surface of the cylinder 7 through the second round hole 102.
[0033] The present invention provides a technical solution in which the filter layer is quickly installed and its upper, lower, left, and right edges can be fixed by passing a double-headed hook 4 through a circular hole 101 and hanging the non-woven filter layer 1 on the surface of the cylinder 7 through a circular hole 102. This improves the filtration capacity of the non-woven filter layer 1. Since its upper, lower, left, and right edges are fixed, after adjusting the size of the non-woven filter layer 1 by sliding the side plate 5, there will be no large gaps between the upper, lower, left, and right edges of the non-woven filter layer 1 and the upper and lower splicing rails 2 and the left and right fixing plates 6.
[0034] Furthermore, a circular piece 8 is fixedly connected to one end of the cylinder 7. The diameter of the circular piece 8 is 2mm larger than the diameter of the circular hole 102.
[0035] Specifically, this design effectively prevents the nonwoven filter layer 1 from falling off the cylinder 7, ensuring the stable installation of the filter layer.
[0036] Furthermore, the top of the fixing plate 6 is provided with a threaded hole 9, and a bolt 10 is installed in the internal thread of the threaded hole 9.
[0037] Specifically, by tightening the bolts 10, the fixing plate 6 can be positioned, which can further strengthen the connection between the fixing plate 6 and the splicing rail 2 and enhance the stability of the entire structure.
[0038] Furthermore, the splicing rail 2 includes:
[0039] The rail unit 201 has a protrusion 202 fixedly connected to one end, a round protrusion 203 fixedly connected to the side of the protrusion 202, and a slot 204 opened at the other end of the rail unit 201. A round groove 205 is opened on the inner wall of the slot 204. The protrusion 202 is 1mm narrower than the slot 204.
[0040] Furthermore, a through groove 206 is provided on the upper surface of the track unit 201, and a U-shaped rod 207 is inserted into the inside of the through groove 206.
[0041] Furthermore, a protrusion 208 is fixedly connected to the surface of the track unit 201, and a groove 11 corresponding to the protrusion 208 is opened on the inner side of the side plate 5.
[0042] Furthermore, the inner side of the track unit 201 is provided with a groove 209 for sliding installation of the circular seat 3.
[0043] Specifically, the individual rail units 201 can be easily spliced together. Simply insert the protrusion 202 into the slot 204 and the round protrusion 203 into the round groove 205 to achieve quick connection and expansion of the splicing rail 2, meeting the filtration needs of different sizes. The U-shaped rod 207 can be inserted into the through groove 206 to further strengthen the overall strength of the splicing rail 2. It can also serve as an installation auxiliary component to increase structural stability. The cooperation between the protrusion 208 and the slide groove 11 makes the sliding of the side plate 5 on the splicing rail 2 smoother and more stable, preventing the side plate 5 from shaking or shifting during the sliding process, ensuring installation accuracy. The groove 209 facilitates the flexible sliding of the round seat 3 inside the splicing rail 2, thereby realizing the adjustment of the position of the double-headed hook 4 to adapt to the installation needs of non-woven filter layers 1 of different sizes or layouts.
[0044] Furthermore, the circular hole 101, the circular seat 3, and the double-headed hook 4 are all arranged in a horizontal array and are divided into two groups, one above the other, with the two groups of circular seats 3 and double-headed hooks 4 facing opposite directions.
[0045] Specifically, this layout allows for more even tensioning and fixing of the nonwoven filter layer 1, ensuring it remains flat under pressure during the filtration process, thus improving filtration efficiency and extending the filter layer's lifespan.
[0046] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. The selection and detailed description of these embodiments in this specification are for the purpose of better explaining the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. 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 composite flat sheet filtration structure, characterized by, include: Non-woven filter layer (1), the surface of the non-woven filter layer (1) is provided with a first round hole (101) and the surface of the non-woven filter layer (1) is provided with a second round hole (102); The splicing rail (2) has a circular seat (3) slidably installed inside it. A double-headed hook (4) is fixedly connected to the surface of the circular seat (3). The double-headed hook (4) passes through a circular hole (101). The splicing rail (2) is slidably mounted with a side plate (5), and a fixing plate (6) is fixedly connected to the inner side of the side plate (5). A cylinder (7) is fixedly connected to the side of the fixing plate (6). The non-woven filter layer (1) is hung on the surface of the cylinder (7) through the second round hole (102).
2. The composite flat sheet filtration structure according to claim 1, wherein: One end of the cylinder (7) is fixedly connected to a disc (8), the diameter of which is 2 mm larger than the diameter of the second hole (102).
3. The composite flat sheet filtration structure according to claim 1, wherein: The top of the fixing plate (6) is provided with a threaded hole (9), and a bolt (10) is installed in the internal thread of the threaded hole (9).
4. The composite flat sheet filtration structure according to claim 1, wherein: The splicing rail (2) includes: A rail unit (201) is provided with a protrusion (202) fixedly connected to one end of the rail unit (201), a round protrusion (203) fixedly connected to the side of the protrusion (202), a slot (204) is provided at the other end of the rail unit (201), a round groove (205) is provided on the inner wall of the slot (204), and the protrusion (202) is 1mm narrower than the slot (204).
5. The composite flat sheet filtration structure according to claim 4, wherein: The upper surface of the rail unit (201) is provided with a through groove (206), and a U-shaped rod (207) is inserted into the inside of the through groove (206).
6. The composite flat sheet filtration structure according to claim 4, wherein: The surface of the rail unit (201) is fixedly connected with a protrusion (208), and the inner side of the side plate (5) is provided with a groove (11) corresponding to the protrusion (208).
7. The composite flat-plate filter structure according to claim 4, characterized in that: The inner side of the rail unit (201) is provided with a groove (209) for the circular seat (3) to be slidably installed.
8. The composite flat-plate filter structure according to claim 1, characterized in that: The circular hole (101), circular seat (3) and double-headed hook (4) are all arranged in a horizontal array and are divided into two groups, upper and lower, with the circular seat (3) and double-headed hook (4) in opposite directions in the two groups.