Filtration equipment and its modular anti-toxic filter cartridges

Abstract

This application discloses a modular gas filter cartridge, comprising: a cartridge body, a cover plate covering the cartridge body, a partition plate movably engaged inside the cartridge body, and a filter layer filled inside the cartridge body; the filter layer fills both sides of the partition plate, or fills the cartridge body without the partition plate. The modular gas filter cartridge of this application, with its partition plate, can divide the filtration space inside the cartridge body into two layers, which can be used to accommodate filter layers with different functions. Alternatively, the partition plate can be removed to increase the thickness of a single-function filter layer, thereby increasing the modularity of the gas filter cartridge. Different filter layers can be filled based on the same cartridge body and cover plate structure, simplifying the production and configuration of the gas filter cartridge.

Description

Technical Field

[0001] This application relates to the field of filtration equipment technology, and more specifically, to a filtration device and its modular anti-toxic filter cartridge. Background Technology

[0002] Gas masks play a crucial role in industrial, medical, military, and public safety fields, but there is still room for improvement in terms of environmental adaptability, comfort, maintenance costs, and special needs (such as children and communications). Future research and development can focus on lightweight design, smart filter materials (such as adaptive temperature / humidity), universal interfaces, and child-specific models to enhance overall protective performance and user experience. Utility Model Content

[0003] This application addresses the shortcomings of existing methods by proposing a filtration device and its modular anti-toxic filter cartridge to solve the technical problems of insufficient versatility, limited filtration efficiency, and insufficient comfort in related technologies.

[0004] In a first aspect, this application provides a modular anti-toxic filter cartridge, which includes: a cartridge body, a cover plate covering the cartridge body, a partition plate movably engaged inside the cartridge body, and a filter layer filled inside the cartridge body; the filter layer fills both sides of the partition plate, or fills the cartridge body without the partition plate.

[0005] Alternatively, the filter layer may include at least one functional layer, with different functional layers made of different materials or using different processes.

[0006] Alternatively, when the filter layer fills both sides of the partition, it fits tightly against the surface of the partition.

[0007] Furthermore, the modular anti-toxic filter cartridge filled with the filter layer is not removable after being sealed.

[0008] Alternatively, the cover plate is provided with a through first vent hole; the bottom of the box body is provided with a through second vent hole, and the edge of the second vent hole is provided with a buckle.

[0009] Alternatively, the inner side of the box is provided with a first isolation layer, the inner side of the cover is provided with a second isolation layer, and one side of the partition is provided with a third isolation layer; the first isolation layer, the second isolation layer and the third isolation layer are each made of thin fabric.

[0010] Furthermore, the first, second, and third isolation layers are fixed by ultrasonic welding.

[0011] Optionally, positioning protrusions are provided on the inner edge of the box body, the inner edge of the cover plate, and the edge of the partition plate, respectively, for realizing ultrasonic welding.

[0012] Furthermore, the partition is provided with a through third vent hole; the partition is provided with a third isolation layer on the side facing the bottom of the box.

[0013] Secondly, this application provides a filtration device that employs the modular anti-toxic filter cartridge as described above.

[0014] The beneficial technical effects of the technical solutions provided in this application include:

[0015] The modular gas filter cartridge of this application has a partition that can divide the filtration space inside the cartridge into two layers. This partition can be used to accommodate filter layers with different functions, or the partition can be removed to increase the thickness of a single-function filter layer. This increases the modularity of the gas filter cartridge, allowing different filter layers to be filled based on the same cartridge and cover structure, thus simplifying the production and configuration of the gas filter cartridge.

[0016] Additional aspects and advantages of this application will be set forth in part in the description which follows, and will become apparent from the description or may be learned by practice of this application. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0018] Figure 1 An exploded view of a modular anti-toxic filter cartridge provided in an embodiment of this application;

[0019] Figure 2 A longitudinal sectional view of a modular anti-toxic filter cartridge provided in this application embodiment;

[0020] Figure 3 for Figure 1 A three-dimensional structural diagram of the box in the diagram;

[0021] Figure 4 for Figure 1 A three-dimensional structural diagram of the cover plate in the middle;

[0022] Figure 5 for Figure 1 A three-dimensional structural diagram of the partition in the middle.

[0023] Reference numerals in the attached drawings: 1-box body; 11-second vent; 12-first isolation layer; 13-buckle; 14-bar; 15-rib; 16-positioning boss; 17-positioning protrusion; 18-positioning post; 2-cover plate; 21-first vent; 22-reinforcing rib; 23-second isolation layer; 3-partition; 31-third vent; 32-third isolation layer; 4-filter layer; 41-gap structure. Detailed Implementation

[0024] The embodiments of this application are described below with reference to the accompanying drawings. It should be understood that the embodiments described below with reference to the accompanying drawings are exemplary descriptions for explaining the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions of the embodiments of this application.

[0025] Those skilled in the art will understand that, unless specifically stated otherwise, the terms "described" and "the" as used herein may also include plural forms. It should be further understood that the term "comprising" as used in the specification of this application means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude other features, information, data, steps, operations, elements, components, and / or combinations thereof supported by the art. The term "and / or" as used herein refers to at least one of the items defined by the term; for example, "A and / or B" can be implemented as "A," or as "B," or as "A and B."

[0026] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0027] refer to Figures 1-5 This application provides a modular anti-toxic filter cartridge that can be detachably assembled into a filtration device as a filter medium for adsorbing dust, adsorbing bacteria, adsorbing or decomposing toxic molecules, especially for use in face mask filtration devices.

[0028] In this embodiment, the modular gas filter cartridge includes a cartridge body 1, a cover plate 2 that fits onto the cartridge body 1, a partition plate 3 that is movably secured inside the cartridge body 1, and a filter layer 4 filled inside the cartridge body 1. The modular gas filter cartridge filled with the filter layer 4 needs to be sealed and cannot be disassembled after sealing to ensure the effectiveness of the filter layer 4.

[0029] Further, refer to Figures 1-3In this embodiment, the housing 1 has a certain depth to completely accommodate the filter layer 4. After the cover plate 2 is closed, the filter layer 4 can be relatively tightly filled inside the housing 1 to increase the airflow through the filter layer 4 and improve filtration efficiency. The bottom of the housing 1 is provided with a through second vent 11, and the edge of the second vent 11 is provided with a buckle 13. The shape and size of the second vent 11 and the structure of the buckle 13 are adapted to the docking structure of the filter device. If the filter device is a face mask, the prior art has a circular snap-fit ​​structure on the face mask. Correspondingly, the second vent 11 is configured to be circular to match the circular snap-fit ​​structure of the face mask, so that the modular gas filter box of this application can be fixedly connected to the face mask by screwing, and further separated from the face mask by reverse rotation. Furthermore, in order to avoid accidental contact with the filter layer 4 from the second vent 11, a transverse baffle 14 can be added to the second vent 11. In other embodiments, the second vent 11 can be configured in other shapes, and the detachable connection structure with the mask can also be adapted.

[0030] refer to Figure 3 The bottom surface of the box 1 has radially arranged ribs 15 centered on the second vent 11. Positioning bosses 16 are arranged around the inner wall edge of the box 1. The distal ends of the ribs 15 are connected to the positioning bosses 16, making the ribs 15 and positioning bosses 16 flush, forming a support platform with gaps to support the filter layer 4. The gaps between the ribs 15 communicate with the second vent 11, which helps increase the airflow. Furthermore, a first isolation layer 12 can be provided between the filter layer 4 and the support platform to further improve the filtration effect and stabilize the internal space of the box 1, improving the sealing effect. In one possible embodiment, the first isolation layer 12 is made of a thin layer of fabric. To improve the overall sealing effect, the first isolation layer 12 can be connected to the support platform by ultrasonic welding. The surface of the positioning bosses 16 has several positioning protrusions 17 spaced apart, which can be used as connection points for ultrasonic welding. Furthermore, several positioning posts 18 extend from the positioning boss 16 toward the opening of the box 1. The height of the positioning posts 18 is approximately half the depth of the box 1, and they are used to movably support the partition 3. When these positioning posts 18 are present in the filling area, the three-dimensional structure of the filter layer 4 should be provided with a gap structure 41 to avoid these positioning posts 18.

[0031] refer to Figure 1 , 24. The cover plate 2 has a through first vent 21. To improve ventilation, the first vent 21 is distributed throughout the central area of ​​the cover plate 2, consisting of densely packed small holes, which can be square, round, hexagonal, octagonal, etc. A second isolation layer 23 is provided on the inner side of the cover plate 2. The function and material of the second isolation layer 23 are the same as the first isolation layer 12, both aimed at improving filtration and sealing effects. Furthermore, a positioning boss 16 is provided on the inner edge of the cover plate 2 for fixing the second isolation layer 23 to the inner side of the cover plate 2 by ultrasonic welding. Reinforcing ribs 22 are also provided on the outer side of the cover plate 2. Several transverse and longitudinal reinforcing ribs 22 orthogonally cross the front area of ​​the cover plate 2 and protrude outward relative to the first vent 21, achieving structural reinforcement and impact buffering. The outer contour of the cover plate 2 matches the outer contour of the box body 1, allowing them to fit tightly together. After fitting, the seam between them can be sealed by ultrasonic welding, achieving a non-removable sealing structure.

[0032] refer to Figure 1 , 2 5. The outer contour of the partition 3 matches the inner outer contour of the box 1, allowing the partition 3 to be placed inside the box 1 and supported by the positioning post 18, dividing the space of the box 1 into two layers. The layer height on both sides of the partition 3 can be the same or adjusted according to actual production. However, regardless of the layer height on both sides, the filter layer 4 must be tightly attached to the surface of the partition 3 to ensure the integrity of the filter layer 4 and the partition 3. The partition 3 has a through third vent 31. To improve the airflow, the layout of the third vent 31 can refer to the first vent 21 of the cover plate 2. The third vent 31 is distributed throughout the central area of ​​the partition 3, consisting of a relatively dense number of small holes. The position of the small holes can further correspond to the small holes on the cover plate 2. The small holes can be square, round, hexagonal, octagonal, etc. At least one side of the partition 3 has a third isolation layer 32. The function and material of the third isolation layer 32 are the same as those of the first isolation layer 12 and the second isolation layer 23, which are all for improving the filtration and sealing effects. In this embodiment, a third isolation layer 32 is provided on the side of the partition 3 facing the bottom of the box 1, and a positioning boss 16 is provided on its edge for fixing the third isolation layer 32 to the partition 3 by ultrasonic welding. In other embodiments, a third isolation layer 32 can also be provided on the side of the partition 3 facing the cover plate 2, and the fixing method of ultrasonic welding can be achieved by providing the positioning boss 16 in the same way.

[0033] refer to Figure 1 and 2Existing technology requires filter layer 4 to possess characteristics such as high-efficiency filtration, chemical stability, low breathing resistance, and durability. The specific materials used must be selected comprehensively based on the type of toxic gas, environmental conditions, and protection level. Activated carbon, polypropylene meltblown fabric, nanofibers, and aerosols can all be considered as alternative materials. These materials can be used individually or in composite structures as functional layers in this application. In this embodiment, with partition 3 present, the filter layer 4 materials used on both sides of partition 3 can be different, thus forming a double-layer filtration configuration. This effectively avoids chemical reactions between different materials affecting filtration performance, while also allowing each material to utilize its own characteristics. Without partition 3, the space within the housing 1 can use a filter layer 4 made of a single material, which can be applied to scenarios requiring enhanced efficiency, thus forming a single-layer filtration configuration. To achieve better filtration, the filter layer 4 between the partition 3 and the bottom of the box 1 should fill the entire area, ensuring that the filter layer 4 is in close contact with the first isolation layer 12 and the third isolation layer 32; the filter layer 4 between the partition 3 and the cover plate 2 should also fill the entire area; if the layer height cannot achieve full filling, the filter layer 4 can be further fixed to the side wall of the box 1 by ultrasonic welding. The filter layer 4 involved in this application can be a material block shaped into a three-dimensional thickness, a material filled in a plastic package, or a bulk material directly filled into a modular gas filter box.

[0034] Air flows into the box 1 from the side of the cover plate 2 through breathing or the action of an air pump, and passes through the first vent 21, the second isolation layer 23, the first filter layer 4, the third vent 31, the third isolation layer 32, the second filter layer 4 and the first isolation layer 12 in sequence, and flows out from the second vent 11, thus achieving air filtration.

[0035] In summary, this application provides a modular gas filter cartridge, comprising: a cartridge body, a cover plate covering the cartridge body, a partition plate movably engaged within the cartridge body, and a filter layer filled within the cartridge body; the filter layer fills both sides of the partition plate, or fills the cartridge body without the partition plate. The modular gas filter cartridge of this application, with its partition plate, can divide the filtration space within the cartridge body into two layers, which can be used to accommodate filter layers with different functions. Alternatively, the partition plate can be removed to increase the thickness of a single-function filter layer, thereby increasing the modularity of the gas filter cartridge. Different filter layers can be filled based on the same cartridge body and cover plate structure, simplifying the production and configuration of the gas filter cartridge.

[0036] Those skilled in the art will understand that the steps, measures, and solutions in the various operations, methods, and processes discussed in this application can be alternated, modified, combined, or deleted. Furthermore, other steps, measures, and solutions in the various operations, methods, and processes discussed in this application can also be alternated, modified, rearranged, decomposed, combined, or deleted. Furthermore, steps, measures, and solutions in related technologies that are similar to those disclosed in this application can also be alternated, modified, rearranged, decomposed, combined, or deleted.

[0037] In the description of this application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate directions or positional relationships based on the exemplary directions or positional relationships shown in the accompanying drawings. They are used to facilitate the description or simplification of the embodiments of this application and are not intended to indicate or imply that the device or component referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0038] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0039] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0040] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0041] The above description is only a partial implementation of this application. It should be noted that for those skilled in the art, other similar implementation methods based on the technical concept of this application, without departing from the technical concept of this application, also fall within the protection scope of the embodiments of this application.

Claims

1. A modular gas repellent filter cartridge, characterized in that, It includes: The box body, a cover plate that covers the box body, a partition that is movably engaged inside the box body, and a filter layer that fills the box body; the filter layer fills both sides of the partition plate, or fills the box body without the partition plate.

2. The modular anti-toxic filter cartridge as described in claim 1, characterized in that, The filter layer includes at least one functional layer, and different functional layers are made of different materials or processes.

3. The modular anti-toxic filter cartridge as described in claim 1, characterized in that, When the filter layer is filled on both sides of the partition, it fits tightly against the surface of the partition.

4. The modular anti-toxic filter cartridge as described in claim 1, characterized in that, The modular anti-toxic filter cartridge filled with the filter layer is not removable after being sealed.

5. The modular anti-toxic filter cartridge as described in claim 1, characterized in that, The cover plate has a through first vent hole; the bottom of the box body has a through second vent hole, and the edge of the second vent hole has a buckle.

6. The modular anti-toxic filter cartridge as described in claim 1, characterized in that, The inner side of the box is provided with a first isolation layer, the inner side of the cover is provided with a second isolation layer, and one side of the partition is provided with a third isolation layer; the first isolation layer, the second isolation layer and the third isolation layer are each made of thin fabric.

7. The modular anti-toxic filter cartridge as described in claim 6, characterized in that, The first isolation layer, the second isolation layer, and the third isolation layer are fixed by ultrasonic welding.

8. The modular anti-toxic filter cartridge as described in claim 7, characterized in that, The inner edge of the box body, the inner edge of the cover plate, and the edge of the partition plate are respectively provided with positioning protrusions for ultrasonic welding.

9. The modular anti-toxic filter cartridge as described in claim 6, characterized in that, The partition is provided with a through third vent hole; the partition is provided with a third isolation layer on the side facing the bottom of the box.

10. A filtration device, characterized in that, It adopts the modular anti-toxic filter cartridge as described in any one of claims 1 to 9.

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