Filter material structure with formaldehyde removal function

Abstract

The utility model discloses a filter material structure with a formaldehyde removal function, which relates to the technical field of filter materials and comprises a fixed outer frame, and a rough filter layer, a nano mineral crystal layer and an activated carbon layer are sequentially arranged on the inner side of the fixed outer frame. The three filter layers vertically slide on the inner side of the fixed outer frame through the corresponding movable frames, and an aromatic layer is arranged on the inner side of one end of the fixed outer frame. According to the filter material structure with the formaldehyde removal function, the movable frame is arranged, so that the three filter layers vertically slide on the inner side of the fixed outer frame, and each filter layer can be independently replaced according to the service life only by upwards pulling a pull ring on the movable frame to pull out the corresponding filter layer; therefore, the situation that a part of materials are wasted or the formaldehyde adsorption performance becomes poor and the like due to the fact that the conventional filter material can only be wholly replaced is avoided; by arranging the aromatic layer, aromatic odor can be emitted for a long time, so that the filter material has two effects of adsorbing formaldehyde and aromatizing air, and the universality of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filter materials, in particular to a filter material structure with a formaldehyde removal function. Background Art

[0002] Formaldehyde, an important material in the wood processing industry, is highly irritating and toxic, and is a major source of indoor air pollution. Long-term exposure to an environment with high formaldehyde concentrations may cause dizziness, vomiting, coughing, chest tightness, leukemia, and even death in severe cases. Therefore, newly renovated houses must be treated and purified for formaldehyde. Currently, the most widely used and fastest-acting method for removing formaldehyde is to use an air purifier. Air purifiers mainly rely on the physical adsorption of activated carbon and nano-mineral crystal filter materials to remove formaldehyde.

[0003] However, the harmful formaldehyde substances adsorbed in the nano-mineral crystals in the filter material will be desorbed and regenerated under sunlight or high temperature. The air purifier will inevitably heat up after long-term use, which will cause the formaldehyde gas in the nano-mineral crystals to be re-released in a short period of time, damaging the health of people indoors.

[0004] In order to overcome the above-mentioned defects, the existing technology (Chinese patent with announcement number CN218269485U and application date of 2022-09-19) is used for air purifier filter cloth for removing formaldehyde. The filter cloth adopts an activated carbon layer and a formaldehyde adsorption layer to perform dual adsorption of formaldehyde to improve the overall adsorption efficiency of formaldehyde. The activated carbon layer adopts secondary activated activated carbon with high porosity and large specific surface area. The formaldehyde adsorption layer contains inorganic ammonium salt particles, which has the effect of chemically adsorbing formaldehyde. When the filter cloth is used in an air purifier, the adsorption efficiency of formaldehyde is several times higher than that of the existing air purifier filter cloth. It can not only efficiently remove formaldehyde and improve indoor air quality, but also has a long service life and strong practicality.

[0005] Although the above technology can improve the filter material, in actual working process, the service life of different filter layers is different. If the filter material is replaced too early, it will cause the loss and waste of some materials. If it is replaced too late, the performance of the filter material in adsorbing formaldehyde in the later stage will deteriorate. The practicality of the device is not strong enough. Moreover, this filter material only has the function of adsorbing harmful gases such as formaldehyde, and its versatility is low.

[0006] In response to the above problems, it is urgent to carry out innovative design based on the original equipment. Therefore, we proposed a filter material structure with formaldehyde removal function that can well solve the above problems. Utility Model Content

[0007] The purpose of the present utility model is to provide a filter material structure with formaldehyde removal function to solve the problem that different filter layers have different service life as proposed in the above-mentioned background technology. If the filter material is replaced too early, it will cause the loss and waste of some materials. If it is replaced too late, the performance of the filter material in adsorbing formaldehyde in the later stage will deteriorate. The practicality of the device is not strong enough. Moreover, this filter material only has the effect of adsorbing harmful gases such as formaldehyde and has low versatility.

[0008] To achieve the above object, the present invention provides the following technical solution: a filter material structure with formaldehyde removal function, comprising a fixed outer frame, the inner side of which is sequentially provided with a coarse filter layer, a nano mineral crystal layer, and an activated carbon layer;

[0009] The inner side of the fixed outer frame is vertically slidably connected to a plurality of movable frames, the coarse filter layer, nano mineral crystal layer, and activated carbon layer are fixedly connected to the inner side of the corresponding movable frame, and a notch for the movable frame to enter and exit is provided at the top of the fixed outer frame. The top of each movable frame is located inside the notch and is fixedly connected to a pull ring. By pulling a certain pull ring upward, the corresponding movable frame and the inner filter layer can be pulled out from the top notch of the fixed outer frame. In this way, each filter layer can be replaced separately according to the aging of the filter material, thereby avoiding the previous situation in which the filter material can only be replaced as a whole, resulting in the loss and waste of part of the material or the deterioration of the formaldehyde adsorption performance.

[0010] An aromatic layer is provided on the inner side of one end of the fixed outer frame, and the aromatic layer can emit aromatic odor for a long time to ensure that the indoor air is fresh and pleasant, so that the filter material has the dual functions of adsorbing formaldehyde and aromatic air, thereby improving the versatility of the device.

[0011] Preferably, the fragrance layer includes an external non-woven fabric outer layer, and the interior of the non-woven fabric outer layer is fixedly connected with a plurality of micro-fragrance capsules distributed in a matrix, and the inner wall of the non-woven fabric outer layer is fixedly connected with a non-woven fabric interlayer between each two adjacent rows of micro-fragrance capsules, and a number of through holes are opened on both sides of the fixed outer frame corresponding to the positions of the non-woven fabric outer layer. The non-woven fabric outer layer and the non-woven fabric interlayer have strong hydrophilicity. When the two sides of the non-woven fabric outer layer absorb moisture in the air through the through holes and reach a certain humidity, the two rows of micro-fragrance capsules located on the most side will absorb water and cause the capsule shell to rupture to release the internal fragrance core, thereby realizing the release of fragrance. Then, the non-woven fabric interlayers located on the most side continue to absorb water and reach a certain humidity, which will cause the two adjacent rows of micro-fragrance capsules to rupture and release, and continue to advance inward until the micro-fragrance capsule in the middle is also released. Through the above-mentioned micro-fragrance technology, long-term and continuous release of fragrance can be guaranteed, thereby improving the effect of realizing the fragrance function of the filter material.

[0012] Preferably, the aroma layer is fixedly connected to the inner side of the movable frame away from the coarse filter layer so that the aroma layer can be replaced separately, and through holes corresponding to the through holes on the fixed outer frame are opened on both sides of the movable frame to ensure the circulation of the non-woven outer layer, micro-aroma capsules, non-woven interlayer and the outside air.

[0013] Preferably, a fixed partition is fixedly connected to the inner side of the fixed outer frame between the activated carbon layer and the aroma layer. The setting of the fixed partition can prevent the nano-mineral crystal layer and the activated carbon layer from directly adsorbing the fragrance emitted by the aroma layer, thereby affecting the aroma function of the filter material.

[0014] Preferably, the outer walls on both sides of each movable frame are fixedly connected with limiting ridges, and the inner walls on both sides of the fixed outer frame are provided with a plurality of limiting grooves, and the limiting ridges slide correspondingly on the inner sides of the limiting grooves. Through the limiting sliding of the limiting ridges and the limiting grooves, the stability of the vertical placement of each filter layer can be guaranteed, thereby facilitating the removal and replacement of the movable frame and the inner filter layer.

[0015] Preferably, the pull rings are distributed from left to right in the order in which the corresponding movable frames are placed, so that the user can easily select the corresponding pull ring to pull according to the filter layer to be taken out.

[0016] Preferably, an adhesive layer is fixedly bonded to one end face of the fixed outer frame close to the aromatic layer, and the adhesive surface of the adhesive layer is bonded to a base paper. By coordinating the adhesive layer and the base paper, the filter material can be firmly bonded to the inside of the air purifier or on the wall for easy use.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the filter material structure with formaldehyde removal function, by providing a movable frame, allows the three filter layers to slide vertically on the inner side of the fixed outer frame, and only the pull ring on the movable frame needs to be pulled upward to pull out the corresponding filter layer, so that each filter layer can be replaced separately according to the service life, thereby avoiding the previous situation where the filter material can only be replaced as a whole, resulting in the loss and waste of part of the material or the deterioration of the formaldehyde adsorption performance; by providing an aromatic layer, the aromatic odor can be emitted for a long time, so that the filter material has the dual functions of adsorbing formaldehyde and aromatic air, thereby improving the versatility of the device. The specific contents are as follows:

[0018] (1) By setting up a movable frame, the three filter layers can slide vertically on the inner side of the fixed outer frame, and the corresponding filter layer can be pulled out from the top notch of the fixed outer frame by simply pulling up the pull ring on the movable frame. Each filter layer can be replaced separately according to the service life, thereby avoiding the previous situation where the filter material can only be replaced as a whole, resulting in the loss and waste of part of the material or the deterioration of the formaldehyde adsorption performance;

[0019] (2) By setting up an aroma layer, the strong hydrophilicity of the non-woven outer layer and the non-woven interlayer is utilized to make them absorb moisture in the air. When a certain humidity is reached, the adjacent micro-aroma capsules will absorb water and cause the capsule shell to rupture, thereby releasing the internal aroma core, that is, realizing the release of aroma. This process continues inward until the micro-aroma capsule in the middle is also released. Through the above-mentioned micro-aroma technology, the long-term and continuous release of fragrance can be guaranteed, and the filter material has the dual functions of adsorbing formaldehyde and aromatic air, thereby improving the versatility of the device;

[0020] (3) The stability of each filter layer in vertical placement can be ensured by the limited sliding of the limited convex strips on both sides of the movable frame and the limited grooves on both sides of the fixed outer frame, thereby facilitating the removal and replacement of the movable frame and the inner filter layer;

[0021] (4) By providing an adhesive layer and a backing paper on the end surface of the fixed outer frame, the filter material can be firmly bonded to the inside of the air purifier or the wall for easy use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall front view of the utility model;

[0023] Figure 2 This is a schematic diagram of the overall structure of the utility model from above;

[0024] Figure 3 For this utility model Figure 2 A in the middle is an enlarged structural diagram;

[0025] Figure 4 This is a structural diagram of the fixed outer frame of the utility model;

[0026] Figure 5 This is a side view schematic diagram of the cutaway structure of the present invention;

[0027] Figure 6 This is a schematic diagram of the internal cross-sectional structure of the non-woven fabric outer layer of the utility model.

[0028] In the figure: 1. Fixed outer frame; 2. Coarse filter layer; 3. Nano mineral crystal layer; 4. Activated carbon layer; 5. Aroma layer; 6. Movable frame; 7. Non-woven outer layer; 8. Micro-aroma capsule; 9. Non-woven interlayer; 10. Through hole; 11. Fixed partition; 12. Limiting ridge; 13. Limiting groove; 14. Pull ring; 15. Adhesive layer; 16. Bottom paper. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figures 1-6 The utility model provides the following technical solutions: a filter material structure with formaldehyde removal function, comprising a fixed outer frame 1, the inner side of which is sequentially provided with a coarse filter layer 2, a nano mineral crystal layer 3, and an activated carbon layer 4;

[0031] A plurality of movable frames 6 are vertically slidably connected to the inner side of the fixed outer frame 1, and the coarse filter layer 2, the nano mineral crystal layer 3, and the activated carbon layer 4 are fixedly connected to the inner side of the corresponding movable frame 6. A notch for the movable frame 6 to enter and exit is provided at the top of the fixed outer frame 1, and a pull ring 14 is fixedly connected to the top of each movable frame 6 located inside the notch, wherein the pull rings 14 are distributed from left to right in the order in which the corresponding movable frames 6 are placed, so that the user can select the corresponding pull ring 14 for pulling according to the filter layer to be taken out, and pull the corresponding movable frame 6 and the inner filter layer out of the top notch of the fixed outer frame 1 by pulling a certain pull ring 14 upwards. In this way, each filter layer can be replaced separately according to the aging of use, thereby avoiding the situation in which the filter material can only be replaced as a whole, resulting in the loss and waste of part of the material or the deterioration of the formaldehyde adsorption performance;

[0032] In addition, the outer walls on both sides of each movable frame 6 are fixedly connected with limiting ridges 12, and the inner walls on both sides of the fixed outer frame 1 are provided with a number of limiting grooves 13. The limiting ridges 12 slide correspondingly on the inner sides of the limiting grooves 13. Through the limiting sliding of the limiting ridges 12 and the limiting grooves 13, the stability of the vertical placement of each filter layer can be guaranteed, thereby facilitating the removal and replacement of the movable frame 6 and the inner filter layer.

[0033] Example 2:

[0034] On the basis of the first embodiment, an aroma layer 5 is provided on the inner side of one end of the fixed outer frame 1. The aroma layer 5 can emit an aromatic smell for a long time to ensure that the indoor air is fresh and pleasant, so that the filter material has the dual functions of adsorbing formaldehyde and aromatic air, thereby improving the versatility of the device. Among them, a fixed partition 11 is fixedly connected to the inner side of the fixed outer frame 1 between the activated carbon layer 4 and the aroma layer 5. The setting of the fixed partition 11 can prevent the nano-mineral crystal layer 3 and the activated carbon layer 4 from directly adsorbing the fragrance emitted by the aroma layer 5, thereby affecting the aroma function of the filter material;

[0035] Specifically, the fragrance layer 5 includes an outer non-woven fabric layer 7, and a plurality of micro-fragrance capsules 8 distributed in a matrix are fixedly connected to the interior of the non-woven fabric layer 7. The inner wall of the non-woven fabric layer 7 is fixedly connected with a non-woven fabric partition 9 between each two adjacent rows of micro-fragrance capsules 8. A plurality of through holes 10 are opened on the positions of the non-woven fabric outer layer 7 on both sides of the fixed outer frame 1. The non-woven fabric outer layer 7 and the non-woven fabric partition 9 have strong hydrophilicity. When the two sides of the non-woven fabric outer layer 7 absorb moisture in the air through the through holes 10 and reach a certain humidity, the two rows of micro-fragrance capsules 8 on the most side will absorb water and cause the capsule shell to rupture to release the internal fragrance core, that is, to achieve the release of fragrance. Then, the non-woven fabric partition 9 on the most side continues to absorb water and reaches a certain humidity, which will cause the adjacent two rows of micro-fragrance capsules 8 to rupture and release, and continue to advance inward until the micro-fragrance capsule 8 in the middle is also released. Through the above-mentioned micro-fragrance technology, the long-term and continuous release of fragrance can be guaranteed, thereby improving the effect of the fragrance function of the filter material.

[0036] The aroma layer 5 is fixedly connected to the inner side of the movable frame 6 away from the coarse filter layer 2, so that the aroma layer 5 can be replaced separately. Through holes 10 corresponding to the through holes 10 on the fixed outer frame 1 are opened on both sides of the movable frame 6 to ensure the circulation of the non-woven outer layer 7, the micro-aromatic capsules 8, the non-woven interlayer 9 and the outside air.

[0037] In addition, an adhesive layer 15 is fixedly bonded to one end face of the fixed outer frame 1 close to the fragrance layer 5, and a base paper 16 is bonded to the adhesive surface of the adhesive layer 15. By coordinating the adhesive layer 15 and the base paper 16, the filter material can be firmly bonded to the inside of the air purifier or the wall for easy use.

[0038] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A filter material structure with formaldehyde removal function, comprising a fixed outer frame (1), wherein a coarse filter layer (2), a nano mineral crystal layer (3), and an activated carbon layer (4) are sequentially arranged on the inner side of the fixed outer frame (1); Its characteristics are: The inner side of the fixed outer frame (1) is vertically slidably connected to a plurality of movable frames (6); the coarse filter layer (2), the nano-mineral crystal layer (3), and the activated carbon layer (4) are fixedly connected to the inner sides of the corresponding movable frames (6); a notch is provided at the top end of the fixed outer frame (1) for the movable frames (6) to enter and exit; and a pull ring (14) is fixedly connected to the top end of each movable frame (6) located inside the notch; An aromatic layer (5) is provided on the inner side of one end of the fixed outer frame (1).

2. The filter material structure with formaldehyde removal function according to claim 1, characterized in that: The aromatic layer (5) comprises an outer non-woven fabric layer (7), a plurality of micro-aromatic capsules (8) distributed in a matrix are fixedly connected to the interior of the non-woven fabric layer (7), a non-woven fabric partition layer (9) is fixedly connected to the inner wall of the non-woven fabric layer (7) between each two adjacent rows of micro-aromatic capsules (8), a plurality of through holes (10) are provided on both sides of the fixed outer frame (1) at positions corresponding to the non-woven fabric layer (7), and the non-woven fabric layer (7) and the non-woven fabric partition layer (9) have strong hydrophilicity.

3. The filter material structure with formaldehyde removal function according to claim 2, characterized in that: The aromatic layer (5) is fixedly connected to the inner side of a movable frame (6) away from the coarse filter layer (2), and through holes (10) corresponding to the through holes (10) on the fixed outer frame (1) are opened on both sides of the movable frame (6).

4. The filter material structure with formaldehyde removal function according to claim 3, characterized in that: A fixed partition (11) is fixedly connected to the inner side of the fixed outer frame (1) between the activated carbon layer (4) and the aromatic layer (5).

5. The filter material structure with formaldehyde removal function according to claim 1, characterized in that: The outer walls on both sides of each movable frame (6) are fixedly connected to limiting convex strips (12), and the inner walls on both sides of the fixed outer frame (1) are provided with a plurality of limiting grooves (13), and the limiting convex strips (12) slide correspondingly on the inner sides of the limiting grooves (13).

6. The filter material structure with formaldehyde removal function according to claim 5, characterized in that: The pull rings (14) are distributed from left to right in the order in which the corresponding movable frames (6) are placed.

7. The filter material structure with formaldehyde removal function according to claim 4, characterized in that: An adhesive layer (15) is fixedly bonded to an end surface of the fixed outer frame (1) close to the aromatic layer (5), and a base paper (16) is bonded to the adhesive surface of the adhesive layer (15).

Images