Roughness-fitting plate-type air filter

By employing a concave-convex interlocking design and a fixing mechanism, the problems of high replacement costs, inconvenient installation, and poor sealing performance of plate air filters are solved. This enables quick disassembly and a highly sealed filter, adapting to various air purification scenarios and reducing equipment modification costs.

CN224292814UActive Publication Date: 2026-05-29ZHENGZHOU KEJING ENVIRONMENTAL ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHENGZHOU KEJING ENVIRONMENTAL ENG CO LTD
Filing Date
2025-07-08
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing panel air filters are costly to replace, inconvenient to install and disassemble, lack modular expansion capabilities, and have poor sealing performance, which affects air purification efficiency.

Method used

It adopts a concave-convex interlocking design, which enables quick splicing and disassembly through the cooperation of the connecting slot and the plate, combined with the fixing mechanism of the fixing knob and the threaded rod. It also uses a sealing ring to enhance the sealing effect and adapt to modular expansion for different needs.

Benefits of technology

It enables rapid installation and disassembly, reduces maintenance costs, improves sealing and equipment stability, adapts to air purification needs of different scales, and reduces equipment upgrade and modification costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a concave-convex embedded type plate type air filter, and particularly relates to air filter technical field, including plate type air filter body, the plate type air filter body front side fixedly connected with sealing rubber ring, the plate type air filter body front side is located sealing rubber ring inside and is provided with the connecting clamping plate, the both sides surface of connecting clamping plate all are provided with fixed clamping hole. The utility model discloses through locking effectively prevent the loose of embedding due to equipment vibration, air flow impact and other factors, guarantee filter stable operation under complex working condition, reduce the risk of failure due to unstable structure, so that plate type air filter can according to actual filtering demand, flexible increase or reduce filter quantity and carry out modularization extension, enhance the sealing effect, ensure that the filtering system reaches higher air tightness standard, is applicable to the clean room, laboratory and other places of strict air quality requirement.
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Description

Technical Field

[0001] This utility model relates to the field of air filter technology, and more specifically, to a concave-convex interlocking plate air filter. Background Technology

[0002] In today's society, air filters are widely used in various air purification equipment, from household air purifiers in daily life to large-scale ventilation systems in industrial production, and to special places such as clean rooms and laboratories with extremely high air quality requirements. Their importance is self-evident. As people pay more and more attention to air quality and various industries impose increasingly stringent air purification standards, the requirements for air filter performance are becoming more and more diversified and demanding.

[0003] A search revealed that Chinese patent CN218452003U discloses a panel air filter. Current panel air filters can only be welded to the frame as a whole using a hot-melt method. When the filter layer fails or is damaged and needs to be replaced, the entire frame must be replaced as well. Although replacement is convenient, it also results in high replacement costs. At the same time, existing panel air filters are not easy to disassemble quickly when installing and replacing the filter element. The filter cotton needs to be removed by screws and nuts, which is not conducive to cleaning and replacing the filter cotton. By pressing the filter bracket inside the ejector outer frame, the filter limiter pushes the locking sliding bracket to slide on the ejector slide rail. At the same time, the locking device locks the filter bracket, thus fixing the filter bracket inside the ejector outer frame.

[0004] When facing air purification scenarios of different scales and needs, the modular expansion capability of traditional panel air filters is insufficient. When multiple panel air filters are needed, it is inconvenient to splice them together. At the same time, when multiple panel air filters are used in combination, it is inconvenient to quickly fit them together for installation. In addition, the sealing effect between multiple panel air filters is insufficient when assembling them, which affects the air purification effect. Utility Model Content

[0005] In order to overcome the problems and defects in the prior art, this utility model provides a concave-convex interlocking plate air filter to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a concave-convex interlocking plate air filter, including a plate air filter body, a sealing ring fixedly connected to the front side of the plate air filter body, and a connecting plate provided inside the sealing ring on the front side of the plate air filter body;

[0007] The connecting plate has fixing holes on both sides, the plate air filter body has multiple connecting slots on the rear side, and the plate air filter body has a fixing mechanism on the outside.

[0008] Preferably, the fixing mechanism includes a fixing shell, which is fixedly installed on the top of the plate air filter body. A threaded rod is rotatably connected inside the fixing shell, and a fixing knob is fixedly connected to one end of the threaded rod.

[0009] Preferably, one end of the threaded rod passes through the fixed shell and extends to one side of the fixed shell, and two sets of threads are symmetrically arranged on the outer surface of the threaded rod.

[0010] Preferably, a threaded sleeve is threaded to the outer side of the threaded rod, a movable slider is fixedly connected to the bottom of the threaded sleeve, and a fixed groove is provided on the top surface of the plate air filter body.

[0011] Preferably, the fixed slide groove and the movable slider are slidably connected, and a movable slide rod is fixedly connected to one side of the movable slider, and the movable slide rod is movably engaged with the fixed locking hole.

[0012] Preferably, a connecting sliding hole is provided between the fixed sliding groove and the connecting slot, and the connecting sliding hole is slidably connected to the movable sliding rod.

[0013] Preferably, the connecting plate and the sealing ring are slidably connected, the connecting plate and the plate air filter body are fixedly connected, and the number of connecting plates and connecting slots is set to multiple, with each of the multiple connecting plates corresponding to one of the multiple connecting slots, and the connecting plates and connecting slots are movably engaged.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. Through the interlocking design of the connecting slot and connecting plate of the plate air filter body, combined with the fixing mechanism consisting of fixing knob, threaded rod, etc., quick splicing and disassembly can be achieved without complicated tools. During installation, simply insert the connecting plate into the connecting slot and rotate the fixing knob to complete the fixation. Disassembly is done by reversing the operation, which greatly saves installation and maintenance time and labor costs, facilitates filter replacement and cleaning, and meets the needs of frequent maintenance scenarios. When the two plate air filter bodies are spliced, the sealing ring is squeezed and tightly fills the gap between the joints, blocking the air leakage path. The stress between the threads locks the connecting plate, further pressing the sealing ring and enhancing the sealing effect, ensuring that the filtration system reaches a higher airtightness standard. It is suitable for clean rooms, laboratories and other places with strict air quality requirements.

[0016] 2. Multiple connecting plates and slots correspond one-to-one, forming a stable interlocking structure. This ensures strong overall integrity after multiple filters are assembled. The locking mechanism effectively prevents loosening caused by equipment vibration, airflow impact, etc., ensuring stable operation of the filter under complex working conditions, extending the overall service life of the equipment, and reducing the risk of failure caused by structural instability. This allows the plate air filter to be flexibly expanded modularly by increasing or decreasing the number of filters according to actual filtration needs. Whether it is a small air purification device or a large industrial ventilation filtration system, the filtration area and filtration efficiency can be adjusted through simple splicing, improving the versatility and adaptability of the equipment and reducing the cost of equipment upgrades and modifications for enterprises. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the rear view structure of this utility model.

[0019] Figure 3 This is a schematic diagram showing the connection structure of multiple plate-type air filter bodies of this utility model.

[0020] Figure 4 This is a partial cross-sectional view of the front of this utility model.

[0021] Figure 5 For the present utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0022] The attached diagram is labeled as follows: 1. Plate air filter body; 2. Sealing ring; 3. Connecting plate; 4. Fixing hole; 5. Connecting groove; 6. Fixing shell; 7. Threaded rod; 8. Fixing knob; 9. Threaded sleeve; 10. Fixing groove; 11. Moving slider; 12. Moving rod; 13. Connecting hole. 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] As attached Figure 1-5 The plate air filter shown includes a plate air filter body 1, a sealing ring 2 is fixedly connected to the front side of the plate air filter body 1, and a connecting plate 3 is provided inside the sealing ring 2 on the front side of the plate air filter body 1.

[0025] The connecting plate 3 has fixing holes 4 on both sides, and the plate air filter body 1 has multiple connecting slots 5 on the rear side surface. The plate air filter body 1 has a fixing mechanism on the outside.

[0026] As attached Figure 1-5 As shown, the fixing mechanism includes a fixing shell 6, which is fixedly installed on the top of the plate air filter body 1. A threaded rod 7 is rotatably connected inside the fixing shell 6. A fixing knob 8 is fixedly connected to one end of the threaded rod 7. One end of the threaded rod 7 passes through the fixing shell 6 and extends to one side of the fixing shell 6. Two sets of threads are symmetrically arranged on the outer surface of the threaded rod 7. A threaded sleeve 9 is threadedly connected to the outer side of the threaded rod 7, so that the threaded rod 7 can be rotated by rotating the fixing knob 8, thereby moving the two threaded sleeves 9 closer to or further away from each other.

[0027] As attached Figure 4 , 5 As shown, a movable slider 11 is fixedly connected to the bottom of the threaded sleeve 9. A fixed slide groove 10 is provided on the top surface of the plate air filter body 1. The fixed slide groove 10 is slidably connected to the movable slider 11. A movable slide rod 12 is fixedly connected to one side of the movable slider 11. The movable slide rod 12 is movably engaged with the fixed locking hole 4. A connecting slide hole 13 is provided between the fixed slide groove 10 and the connecting slot 5. The connecting slide hole 13 is slidably connected to the movable slide rod 12, so that the movable slide rod 12 enters the connecting slot 5 through the connecting slide hole 13, thereby locking the connecting plate 3 into the fixed locking hole 4.

[0028] As attached Figure 1-4 As shown, the connecting plate 3 and the sealing ring 2 are slidably connected, and the connecting plate 3 and the plate air filter body 1 are fixedly connected. The number of connecting plates 3 and connecting slots 5 is set to multiple, and the multiple connecting plates 3 and the multiple connecting slots 5 correspond one-to-one. The connecting plates 3 and the connecting slots 5 are movably engaged, which facilitates the positioning and splicing of multiple plate air filter bodies 1.

[0029] The working principle of this utility model is as follows: The connecting slot 5 on the rear side of the plate air filter body 1 engages with the connecting plates 3 of other plate air filter bodies 1 to achieve the splicing of multiple filters. By rotating the fixing knob 8, the threaded rod 7 rotates. At the same time, the threaded sleeve 9 cannot rotate due to the restriction of the fixing groove 10. The two sets of threaded sleeves 9 move to the sides or center along the threaded rod 7, which in turn drives the movable slider 11 to slide in the fixing groove 10. The movable slide rod 12 fixed on one side of the movable slider 11 moves with the slider and passes through the connecting slide hole 13. When the movable slide rod 12 is inserted into the fixing hole 4 of the connecting plate 3, the connection is completed. The locking of plate 3, thereby fixing the adjacent filter body 1, locks the connecting plate 3 through the stress between the threads, so that the sealing ring 2 is clamped between the two plate air filter bodies 1. When multiple filters are spliced, the connecting plate 3 of one filter is inserted into the connecting groove 5 of another filter to form a concave-convex fitting structure. Multiple connecting plates 3 correspond one-to-one with the connecting groove 5 to ensure splicing stability. The sealing ring 2 is squeezed during fitting to fill the gap between the joints and improve the sealing performance. The fixing mechanism locks the fitted connecting plate 3 to the body 1 by moving the slide rod 12 into the fixing hole 4, preventing the fitting from loosening due to vibration or other factors.

[0030] In conclusion, the above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A recessed-convex interlocking plate air filter, comprising a plate air filter body (1), characterized in that: A sealing ring (2) is fixedly connected to the front side of the plate air filter body (1), and a connecting plate (3) is provided inside the sealing ring (2) on the front side of the plate air filter body (1). The connecting plate (3) has fixing holes (4) on both sides, the plate air filter body (1) has multiple connecting slots (5) on the rear side, and the plate air filter body (1) has a fixing mechanism on the outside.

2. The concave-convex interlocking plate air filter according to claim 1, characterized in that: The fixing mechanism includes a fixing shell (6), which is fixedly installed on the top of the plate air filter body (1). A threaded rod (7) is rotatably connected inside the fixing shell (6), and a fixing knob (8) is fixedly connected to one end of the threaded rod (7).

3. The concave-convex interlocking plate air filter according to claim 2, characterized in that: One end of the threaded rod (7) passes through the fixed shell (6) and extends to one side of the fixed shell (6). Two sets of threads are symmetrically arranged on the outer surface of the threaded rod (7).

4. The concave-convex interlocking plate air filter according to claim 3, characterized in that: The threaded rod (7) is threadedly connected to a threaded sleeve (9) on the outside. A movable slider (11) is fixedly connected to the bottom of the threaded sleeve (9). A fixed groove (10) is provided on the top surface of the plate air filter body (1).

5. The concave-convex interlocking plate air filter according to claim 4, characterized in that: The fixed slide groove (10) is slidably connected to the movable slider (11), and a movable slide rod (12) is fixedly connected to one side of the movable slider (11). The movable slide rod (12) is movably engaged with the fixed locking hole (4).

6. The concave-convex interlocking plate air filter according to claim 4, characterized in that: A connecting sliding hole (13) is provided between the fixed sliding groove (10) and the connecting slot (5), and the connecting sliding hole (13) is slidably connected to the movable sliding rod (12).

7. The concave-convex interlocking plate air filter according to claim 1, characterized in that: The connecting plate (3) is slidably connected to the sealing ring (2), and the connecting plate (3) is fixedly connected to the plate air filter body (1). The number of connecting plates (3) and connecting slots (5) is set to multiple, and the multiple connecting plates (3) and multiple connecting slots (5) correspond one-to-one. The connecting plates (3) and connecting slots (5) are movably engaged.