Folding particulate matter filter cotton for respirator
By using a design of folded, wavy, multi-layer meltblown fabric and a single-layer nonwoven fabric, the problem of poor breathability of respirator filter cotton is solved, achieving efficient filtration and improved breathability, thus enhancing wearing comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-04-07
AI Technical Summary
Existing respirator filter cotton has poor breathability, resulting in discomfort when worn and poor filtration effect.
It adopts a multi-layer meltblown fabric filter layer design with a folded wave shape, combined with a single-layer non-woven fabric filter layer, to ensure that the folding direction of each layer of meltblown fabric is consistent and the layers are tightly stacked, increasing air permeability and filtration area. It also achieves high-efficiency filtration through the integrated installation structure of activated carbon filter box and respirator.
It achieves a lightweight and breathable filtration effect, significantly improves the air filtration area and breathability, and enhances the wearing comfort and filtration effect of the respirator.
Smart Images
Figure CN224085845U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to filter cotton technical field, especially point to a kind of respirator's folding particulate filter cotton. BACKGROUND
[0002] The use of filter cotton is extremely wide, and it is permeated in many scenes of daily life. Whether it is an air purifier, an exhaust fan, a mask or a respirator, filter cotton plays an indispensable role. More unexpectedly, it can even be used as a filler to make a toy throw pillow, which can effectively filter industrial odors and add freshness and comfort to life. Among all these applications, the use of filter cotton on respirators is very high. Respirator, also known as breathing mask or breathing mask, can effectively prevent or reduce particulate pollutants such as dust, smoke and fog in the air from entering the respiratory organs of the human body. In various scenarios such as industrial production, construction, agricultural activities and medical environment, the presence of particulate matter can pose a threat to respiratory health, and the filter cotton in the respirator is the key to this protective barrier.
[0003] However, most filter boxes have the problem of poor air permeability and stuffiness of filter cotton. Now people need more lightweight and breathable filter cotton to improve the comfort of wearing. CONTENT OF THE UTILITY MODEL
[0004] The utility model aims at providing a kind of respirator's folding particulate filter cotton, light, breathable, and the filter layer of multiple layers can effectively block the particulate pollutants in air, provide good filtering effect.
[0005] To achieve the above purpose, the solution of the utility model is: a kind of respirator's folding particulate filter cotton, including first filter layer, intermediate filter layer and second filter layer, the periphery of first filter layer, intermediate filter layer and second filter layer is fixed together, intermediate filter layer is arranged in the cavity between first filter layer and second filter layer, constitutes the inner support of first filter layer and second filter layer, intermediate filter layer includes multiple layers of melt-blown cloth, each layer of melt-blown cloth is the folding wave structure formed by multiple bending, the folding direction of each layer of melt-blown cloth is same, and is stacked together in the form of kiss with fold, the filter cotton is installed on respirator, respirator includes mask main body, activated carbon filter box and outer cover, mask main body is worn on face, mask main body side is equipped with mounting hole, the side of activated carbon filter box is equipped with the interface of detachable cooperation with mounting hole, activated carbon is built-in in activated carbon filter box, the other side of activated carbon filter box is equipped with installation slot, installation slot is equipped with air-permeable mesh, the shape of installation slot is same with the shape of filter cotton, installation slot is placed into cooperation with filter cotton, outer cover is fixed in installation slot in the form of detachable cover, outer cover is equipped with air hole.
[0006] As a further improvement, the first filter layer and the second filter layer are both single-layer structures.
[0007] As a further improvement, the first filter layer and the second filter layer are both non-woven fabrics.
[0008] As a further improvement, the first filter layer and the second filter layer are provided with air-permeable holes.
[0009] As a further improvement, the first filter layer and the second filter layer are both flat structures without folding.
[0010] As a further improvement, the intermediate filter layer is a two-layer melt-blown fabric.
[0011] As a further improvement, the folding direction of the intermediate filter layer is transverse, longitudinal or oblique at any angle.
[0012] As a further improvement, the filter cotton is in the shape of a circle, an ellipse, a square, an egg shape, a convex shape or a special shape.
[0013] After the above scheme is adopted, the gain effect of the utility model lies in:
[0014] Firstly, the utility model introduces the design of the intermediate filter layer with a folded wave shape, and the multi-layer structure can effectively intercept particulate pollutants in the air, thereby providing excellent filtering effect. It is worth mentioning that the intermediate filter layer adopts a multi-layer melt-blown fabric material, which not only has a remarkable folding and shaping effect, so that the melt-blown fabrics of each layer can be tightly and orderly folded together, but also the folding direction of each layer of melt-blown fabric is consistent, the layers are tightly stacked, and the air flows freely between the folds, thereby maximizing the air filtering area and making the filter cotton more breathable. In addition, the utility model is light in weight, convenient to carry, simple in structure and easy to produce, without complex dispensing process, which not only reduces the production cost and process, but also makes the product more breathable and the dust blocking effect more significant, meeting the needs of various application scenarios.
[0015] The utility model also includes the mounting structure of the filter cotton and the respirator, the filter cotton is installed in the mounting groove of the activated carbon filter box, and is fixed to form a whole through the cover, and the whole is installed in the side of the respirator through the interface of the activated carbon filter box, the installation is completed, so that the air is inhaled from the air hole of the shell during use, then enters the activated carbon filter box through the filter cotton and the air-permeable mesh, and then enters the inside of the mask main body through the activated carbon filter box, the interface and the mounting hole, in this way, the filter cotton and the activated carbon filter box can effectively filter particulate pollutants and toxic gases, greatly improve the filtering effect, and the filter cotton can be quickly replaced, and the air permeability of the respirator as a whole is improved due to the air permeability of the filter cotton. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1It is the whole structure schematic diagram (egg shape) of the utility model;
[0017] Figure 2 It is the exploded structure schematic diagram of the utility model;
[0018] Figure 3 It is the half cut structure schematic diagram of the utility model;
[0019] Figure 4 It is Figure 3 The enlarged structure schematic diagram of A in the middle;
[0020] Figure 5 It is the whole structure schematic diagram of the utility model, and the outer contour is convex letter shape;
[0021] Figure 6 It is the installation structure schematic diagram of the respirator and filter cotton of the utility model.
[0022] Label explanation:
[0023] 1, first filter layer;2, intermediate filter layer;3, second filter layer;4, cavity;5, filter cotton;6, mask main body;7, activated carbon filter box;8, outer cover;9, mounting hole;10, mounting groove;11, air permeable mesh;12, air hole. Specific implementation
[0024] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are preferred embodiments of the utility model, and should not be regarded as excluding other embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0025] The utility model provides a kind of folding particulate filter cotton for respirator, as shown in Figure 1 And Figure 2 As shown, including first filter layer 1, intermediate filter layer 2 and second filter layer 3, the four edges of first filter layer 1, intermediate filter layer 2 and second filter layer 3 are fixed together. Intermediate filter layer 2 is arranged in the cavity 4 between first filter layer 1 and second filter layer 3, and intermediate filter layer 2 constitutes the inner support of first filter layer 1 and second filter layer 3, and intermediate filter layer 2 includes multiple layers of melt-blown cloth, each layer of melt-blown cloth is folded wave structure formed by multiple bending, and the folding direction of each layer of melt-blown cloth is the same, and is stacked together in the same way. The number of layers of melt-blown cloth is not limited in the utility model, in preferred embodiment, intermediate filter layer 2 is designed as two layers of melt-blown cloth, two layers of melt-blown cloth realize the lowest production cost, and also have the effect of "double filtration", and the filtering effect is better.
[0026] AsFigure 2 、 Figure 3 and Figure 4 The utility model discloses an intermediate filter layer 2, which comprises a first filter layer 1, an intermediate filter layer 2 and a second filter layer 3, wherein the first filter layer 1 and the second filter layer 3 are both single-layer structures, and the intermediate filter layer 2 comprises at least two layers of melt-blown cloth.
[0027] There is a filter cotton with a "non-woven fabric + non-woven fabric + melt-blown cloth + non-woven fabric + non-woven fabric" five-layer structure on the market, and the "non-woven fabric + melt-blown cloth + non-woven fabric" in the middle is a folded wave structure. However, due to the soft, thin, and flat texture of the non-woven fabric, it is difficult to fold the melt-blown cloth tightly together, and extremely delicate technology is required. Therefore, the non-woven fabric of this filter cotton is loosely attached to the two sides of the melt-blown cloth, which causes the loose non-woven fabric to block between the folds on the two sides of the melt-blown cloth, resulting in poor air flow and poor air permeability of the filter cotton, and the wearer still feels uncomfortable. Compared with the above, the utility model does not design non-woven fabric in the middle, but designs at least two layers of melt-blown cloth. The melt-blown cloth has good folding and shaping effect, so the melt-blown cloth can be folded together finely, and the folding direction of each layer of melt-blown cloth is the same, so the folds are stacked together, the air can flow between the folds, there is no blockage, the air filtration area is maximized, and the filter cotton is more breathable.
[0028] In order to save cost and be light, the first filter layer 1 and the second filter layer 3 of the utility model are both single-layer structures, and single-layer non-woven fabric can be used. In order to further improve the air permeability, small and dense air holes can be formed on the first filter layer 1 and the second filter layer 3.
[0029] The first filter layer 1 and the second filter layer 3 are both flat structures without folding, which not only improves the touch feeling, but also prevents the first filter layer 1 and the second filter layer 3 from being stuck between the folds of the intermediate filter layer 2, causing poor air permeability.
[0030] The folding direction of the intermediate filter layer 2 is not limited, which can be horizontal, vertical or any angle oblique.
[0031] The shape of the filter cotton 5 is not limited, and can be circular, oval, square, egg-shaped, convex-shaped or special-shaped. Figure 1 As shown in the drawings, the convex-shaped is as shown in the drawings. Figure 5
[0032] The filter cotton 5 is installed on a respirator, and the respirator comprises a mask body 6, an activated carbon filter box 7 and an outer cover 8, the mask body 6 is worn on the face, the mask body 6 is provided with a mounting hole 9 on the side, one side of the activated carbon filter box 7 is provided with an interface (not shown in the drawings) detachably matched with the mounting hole 9, the activated carbon filter box 7 is internally provided with activated carbon, the other side of the activated carbon filter box 7 is provided with a mounting groove 10, the mounting groove 10 is internally provided with a breathable mesh 11, the shape of the mounting groove 10 is the same as that of the filter cotton 5, the mounting groove 10 is used for cooperating with the filter cotton 5 to be placed, and the outer cover 8 is detachably covered and fixed at the mounting groove 10, and the outer cover 8 is provided with a vent hole 12.
[0033] In the claims, the specification, and the above drawings of the utility model, if the terms "comprising", "having", and their variants are used, it is intended to mean "including but not limited to".
[0034] In the claims, the specification, and the above drawings of the utility model, unless otherwise explicitly limited, for the orientation words, if the terms "in", "out", "first", "second", and the like are used to indicate the orientation or position relationship based on the orientation and position relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation or be constructed and operated in a particular orientation, so it cannot be understood as limiting the specific protection scope of the utility model.
[0035] The above is only the preferred embodiment of the utility model, and is not limited to the design of the utility model, and any equivalent change made according to the key design of the utility model falls within the protection scope of the utility model.
Claims
1. A pleated particulate filter cotton (5) for a respirator, characterized in that: The device includes a first filter layer (1), a middle filter layer (2), and a second filter layer (3). The first filter layer (1), the middle filter layer (2), and the second filter layer (3) are sealed together around their perimeter. The middle filter layer (2) is located in the cavity (4) between the first filter layer (1) and the second filter layer (3), forming an inner support for the first filter layer (1) and the second filter layer (3). The middle filter layer (2) includes multiple layers of meltblown fabric. Each layer of meltblown fabric is a folded wave structure formed by multiple bends. The folding direction of each layer of meltblown fabric is the same, and the folds are stacked together in a matching manner. The filter cotton (5) is installed on the respirator, which includes a face mask. The mask body (6), activated carbon filter box (7), and outer cover (8) are designed for wearing on the face. The mask body (6) has an installation hole (9) on its side. The activated carbon filter box (7) has an interface on one side that is detachable and assembled with the installation hole (9). The activated carbon filter box (7) contains activated carbon. The other side of the activated carbon filter box (7) has an installation groove (10). The installation groove (10) has a breathable mesh (11). The shape of the installation groove (10) is the same as that of the filter cotton (5). The installation groove (10) is used for the filter cotton (5) to be inserted. The outer cover (8) is detachably closed and fixed at the installation groove (10). The outer cover (8) has a vent hole (12).
2. The pleated particulate filter cotton for a respirator as described in claim 1, characterized in that: Both the first filter layer (1) and the second filter layer (3) are single-layer structures.
3. A folded particulate filter cotton for a respirator as described in claim 1 or 2, characterized in that: Both the first filter layer (1) and the second filter layer (3) are non-woven fabrics.
4. The pleated particulate filter cotton for a respirator as described in claim 1, characterized in that: The first filter layer (1) and the second filter layer (3) have air vents.
5. The pleated particulate filter cotton for a respirator as described in claim 1, characterized in that: Both the first filter layer (1) and the second filter layer (3) are flat structures without folds.
6. The pleated particulate filter cotton for a respirator as described in claim 1, characterized in that: The intermediate filter layer (2) consists of two layers of meltblown fabric.
7. The pleated particulate filter cotton for a respirator as described in claim 1, characterized in that: The folding direction of the intermediate filter layer (2) is horizontal, vertical or oblique at any angle.
8. The pleated particulate filter cotton for a respirator as described in claim 1, characterized in that: The filter cotton comes in various shapes, including round, oval, square, egg-shaped, convex, or irregular.