CN213247047U - Dust mask with replaceable filter element - Google Patents

Abstract

The application relates to the technical field of mask protectors, in particular to a dustproof mask with a replaceable filter disc. The mask body is provided with attachment structures on the peripheral edges; the two sides of the cover body are respectively connected with an adjustable ear belt structure; the mask body is sequentially provided with a spun-bonded non-woven fabric layer, a waterproof breathable film layer, a nylon wire net layer, an activated carbon layer and a veneered soft non-woven fabric layer from outside to inside; the interlayer in the cover body forms an openable or closable bag, and an electrostatic adsorption filter disc is placed in the bag. There is the multilayer filter layer at cover body outside-in superpose, sets up the dust holding volume that the multilayer filter layer can improve the gauze mask, improves the dustproof effect of gauze mask to realize used repeatedly gauze mask through the filter element in the change sack, reduce the cost of using the gauze mask. Adopt the technical scheme that this application provided to solve current ordinary gauze mask dustproof effect poor, hold the dirt volume lower, can not used repeatedly leads to the fact problem with high costs.

Description

Dust mask with replaceable filter element

Technical Field

The application relates to the technical field of mask protectors, in particular to a dustproof mask with a replaceable filter disc.

Background

With the rapid development of economy, the physical health of workers is widely concerned by society, and meanwhile, continuous innovation and development in the field of labor protection articles are driven. At present, certain workplaces have severe environments, such as mineral powder processing, cement loading and unloading and other workplaces, have high-concentration dust in the air, and seriously harm the health of workers.

The existing dust mask covers the mouth and nose by taking breathable cloth as a mask body, and a material capable of absorbing dust is clamped in the middle of the breathable cloth so as to prevent the dust in the air from penetrating through the mask body to be inhaled by the mouth and nose, but the dust which is less than 5 microns in particular can penetrate through meshes of gauze and enter a respiratory system of a human body, and the common mask is difficult to meet the dust prevention requirement of the fine dust. Moreover, the dust holding capacity of the common mask is low, and dust can be accumulated in the mask due to high dust concentration in certain working occasions, so that the common mask loses the efficacy after being used for a period of time and cannot be reused, and only the whole mask can be replaced during replacement, thereby causing the problem of high cost.

SUMMERY OF THE UTILITY MODEL

The invention aims to provide a dustproof mask with a replaceable filter element, and the technical scheme provided by the application solves the problems that the existing common mask is poor in dustproof effect, low in dust containing amount and high in cost due to the fact that the existing common mask cannot be used repeatedly.

In order to solve the technical problem, the application provides a dustproof mask with a replaceable filter element, which comprises a mask body, wherein attachment structures are arranged on the peripheral edge of the mask body; the two sides of the cover body are respectively connected with an adjustable ear belt structure; the mask body is sequentially provided with a spun-bonded non-woven fabric layer, a waterproof breathable film layer, a nylon wire net layer, an activated carbon layer and a veneered soft non-woven fabric layer from outside to inside; the interlayer in the cover body forms an openable or closable bag, and an electrostatic adsorption filter disc is placed in the bag. Can make the cover body all around edge closely laminate with the people's face through attached structure, improve the effect of the sealed effect of gauze mask and isolated dust, there is the multilayer filter layer at cover body outside-in superpose, set up the dust holding capacity that the multilayer filter layer can improve the gauze mask, improve the dustproof effect of gauze mask to realize used repeatedly gauze mask through the filter element in the change sack, reduce the cost of using the gauze mask.

Preferably, the interlayer between the spun-bonded non-woven fabric layer and the waterproof breathable film layer forms the bagging. And then utilize the bagging-off to realize changing built-in electrostatic absorption filter element, realize reaching the purpose of used repeatedly gauze mask through changing electrostatic absorption filter element.

Preferably, a strip-shaped self-adhesive tape is arranged in the joint surface of the spun-bonded non-woven fabric layer and the waterproof breathable film layer; the self-adhesive tape constitutes an opening of the pouch for opening or closing the pouch. Through the self-adhesion area of manual opening and shutting and then realize opening or closed bagging-off opening, and then reach the purpose of changing built-in electrostatic absorption filter element, realize used repeatedly gauze mask, reduce the cost of using the gauze mask.

Preferably, the attachment structure comprises an annular cavity arranged around the cover body and a shaping adjusting piece arranged in the annular cavity. The setting adjustment piece makes the edge of the periphery of the cover body closely attached to the face of a person, and prevents dust in the outside air from being sucked from the gap between the cover body and the face of the person.

Preferably, the sizing adjustment member is an encapsulated soft aluminum wire. Through the soft aluminium silk of rubber coating at the edge all around of the adjustment cover body for all closely laminate on people's face around the cover body, prevent that the dust in the outside air from inhaling from the clearance department of the cover body and the laminating of people's face, realize improving the sealed effect with isolated dust of gauze mask.

Preferably, the ear belt structure comprises two ear belts fixedly connected to the side of the mask body and an adjusting buckle connected to the tail end of the ear belt and used for adjusting the length of the ear belt. The length of the ear belt is adjusted by adjusting the position of the adjusting buckle connected with the tail end of the ear belt, so that the ear belt can adapt to the wearing requirements of different people.

Preferably, the electrostatic adsorption filter is a polylactic acid electrostatic spinning filter. The filter material is made of fiber charged with permanent static electricity, and respiratory dust smaller than micron is attracted by static electricity and adsorbed on the filter material in the process of passing through the filter disc, so that fine dust is captured, and the main dust blocking effect is achieved.

Preferably, the pore diameter of the polylactic acid electrostatic spinning filter disc is 3-4 μm.

Preferably, the pore diameters of the spun-bonded non-woven fabric layer and the veneered soft non-woven fabric layer are 8-10 microns, the pore diameters of the waterproof breathable film layer and the nylon wire net layer are 7-8 microns, and the pore diameter of the activated carbon layer is 3-5 microns. The filter material is a multi-layer filter material, and the aperture is gradually decreased layer by layer, so that dust and other tiny particles and bacteria can be gradually filtered, the working pressure of each layer of filter material can be reduced, and the filter ventilation effect of the product is better.

Preferably, the thickness of the spun-bonded non-woven fabric layer and the veneered soft non-woven fabric layer is 0.5-0.8 mm; the thickness of the waterproof breathable film layer, the thickness of the nylon wire net layer and the thickness of the activated carbon layer are 0.6-1 mm; the thickness of the electrostatic adsorption filter disc is 0.8-1.2 mm. The multi-layer filtering function improves the dust holding capacity of the mask, and ensures that the mask body has good dust blocking effect on the whole.

Compared with the prior art, the beneficial effects of the utility model are that: this scheme is through being equipped with in proper order on the cover body outside-in and spins nonwoven cloth layer, waterproof ventilative rete, nylon yarn stratum reticulare, activated carbon layer and the soft nonwoven cloth layer of wainscot, and the dust holding capacity of multi-layer filtration improves the gauze mask improves dustproof effect. The interlayer in the cover body is provided with a bag for placing the electrostatic adsorption filter, fine dust is captured through electrostatic attraction, the main dust blocking effect is achieved, the filtering performance of the mask is greatly improved, the bag can be opened or closed through arrangement, the filter is replaced to achieve the reuse of the mask, and the cost of using the mask is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments of the present application or the prior art will be briefly described below. It should be apparent that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained by those skilled in the art without inventive exercise.

FIG. 1 is a front view of a filter replaceable dust mask according to an embodiment of the present disclosure;

FIG. 2 is a sectional view of a dust mask A-A with a replaceable filter according to an embodiment of the present disclosure.

Reference numerals

1. A cover body; 10. an electrostatic adsorption filter; 11. a spunbond nonwoven layer; 12. a waterproof breathable film layer; 13. a nylon mesh layer; 14. an activated carbon layer; 15. veneering a soft non-woven fabric layer; 2. attaching the structure; 21. an annular cavity; 22. shaping the adjusting piece; 3. bagging; 31. a self-adhesive tape; 4. an ear band structure; 41. an ear band; 42. an adjusting buckle.

Detailed Description

In the following description, numerous implementation details are set forth in order to provide a thorough understanding of the present invention. It should be understood, however, that these implementation details should not be used to limit the application. That is, in some embodiments of the present application, such practical details are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

It should be noted that all the directional indications such as up, down, left, right, front and rear … … in the embodiment of the present application are only used to explain the relative positional relationship, movement, etc. between the components in a specific posture as shown in the drawings, and if the specific posture is changed, the directional indication is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in this application are for descriptive purposes only, not specifically referring to the order or sequence, nor are they intended to limit the application, but merely to distinguish components or operations described in the same technical terms, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.

For further understanding of the contents, features and functions of the present invention, the following embodiments are exemplified in conjunction with the accompanying drawings and the following detailed description:

in order to solve the above technical problem, this embodiment provides a dust mask with a replaceable filter, as shown in fig. 1, fig. 1 is a front view of the dust mask with the replaceable filter according to the embodiment of the present application, and includes a mask body 1, wherein attachment structures 2 are installed on the edges of the periphery of the mask body 1, so that the edges of the periphery of the mask body 1 are tightly attached to a human face, thereby preventing dust in the outside air from being sucked from a gap where the mask body 1 and the human face are attached, and improving the dust-isolating effect of the mask; the two sides of the mask body 1 are connected with adjustable ear belt structures 4, and the adjustable ear belt structures 4 can enable the mask to be suitable for people with different face sizes; the mask body 1 is overlapped with a plurality of filter layers from outside to inside, and the dust holding capacity of the mask can be improved and the dustproof effect of the mask can be improved by arranging the plurality of filter layers; the mask body 1 is provided with a bagging bag 3 which can be opened or closed, an electrostatic adsorption filter sheet 10 is placed in the bagging bag 3, the mask can be reused by replacing the filter sheet, and the cost of using the mask is reduced.

Specifically, as shown in fig. 2, fig. 2 is a sectional view of a dust mask a-a with a replaceable filter according to an embodiment of the present disclosure. In order to improve the dust holding capacity, the cover body 1 is sequentially provided with a spun-bonded non-woven fabric layer 11, a waterproof breathable film layer 12, a nylon wire mesh layer 13, an activated carbon layer 14 and a veneered soft non-woven fabric layer 15 from outside to inside, and all filter layers are formed by rapid hot-press bonding. The spun-bonded non-woven fabric layer 11 and the waterproof breathable film layer 12 both have a waterproof effect, and the filter layer material in the cover body 1 is guaranteed not to be wetted to cause failure. The nylon mesh layer 13 has the function of stabilizing each filter layer, and can enable the mask to have certain hardness and flexibility. The veneering soft non-woven fabric layer 15 is attached to the face of a person, has the characteristic of softness and skin friendliness, and improves the comfort of the person wearing the mask. The activated carbon layer 14 can adsorb micro particles in the air, so as to further improve the dust filtering effect, and the activated carbon layer 14 is made of nano activated carbon fiber materials, so that micron-sized dust can be filtered.

In order to realize the reutilization of the cover body 1 and reduce the loss, the cover body 1 is provided with a bagging bag 3 which can be opened or closed, and an electrostatic adsorption filter sheet 10 is arranged in the bagging bag 3. In particular, the barrier between the spunbonded nonwoven 11 and the waterproof breathable film 12 constitutes the pouch 3. The binding face of spunbonded nonwoven fabric layer 11 and waterproof ventilative rete 12 is built-in to be equipped with the self-adhesion area 31 of bar, and self-adhesion area 31 constitutes the opening of bagging 3, opens or closed bagging 3 opening through manual self-adhesion area 31 that opens and shuts and then realize changing built-in electrostatic absorption filter element 10 through bagging 3, realizes reaching the purpose of used repeatedly gauze mask through changing electrostatic absorption filter element 10.

The electrostatic adsorption filter 10 is a polylactic acid electrostatic spinning filter, the polylactic acid electrostatic spinning filter has good water repellency, a filter material of the filter consists of fibers which are charged with permanent static electricity, and respiratory dust smaller than 5 micrometers is adsorbed on the filter material by being attracted by the static electricity in the process of passing through the filter, so that fine dust is captured, and a main dust blocking effect is achieved. Air passes through the electrostatic adsorption filter element 10 and then passes through the waterproof breathable film layer 12, the nylon wire mesh layer 13, the activated carbon layer 14 and the veneered soft non-woven fabric layer 15, and compared with a common mask, the filtering performance of the mask is greatly improved.

Further, in order to ensure the dust-proof effect of the cover body 1, the thickness of the spun-bonded non-woven fabric layer 11 and the veneered soft non-woven fabric layer 15 is 0.5mm, the thickness of the waterproof breathable film layer 12, the nylon wire mesh layer 13 and the activated carbon layer 14 is 0.6mm, and as the electrostatic adsorption filter sheet 10 plays a main dust-proof role, the thickness of the electrostatic adsorption filter sheet 10 is 1.2mm, the cover body 1 is ensured to have a good dust-proof effect on the whole.

Wherein, the pore diameter of the polylactic acid electrostatic spinning filter disc is 3 μm, the pore diameters of the spun-bonded non-woven fabric layer 11 and the veneered soft non-woven fabric layer 15 are 8 μm, the pore diameters of the waterproof breathable film layer 12 and the nylon wire mesh layer 13 are 7 μm, and the pore diameter of the activated carbon layer 14 is 3 μm. The mode of adopting multilayer filtering material filters, not only can gradually filter tiny particle, bacterium such as dust, can also reduce the operating pressure of every layer of filtering material for the filter ventilation effect of product is better.

In order to realize the effect of improving the sealed and isolated dust of gauze mask, be equipped with attached structure 2 at cover body 1 periphery facial make cover body 1 periphery facial inseparable laminating, prevent that the dust in the outside air from covering the clearance department of body 1 and the laminating of people's face and inhaling. Specifically, the attachment structure 2 includes an annular cavity 21 formed around the cover 1 and a shaping adjustment member 22 installed in the annular cavity 21. Wherein the shaping adjusting member 22 is an encapsulated soft aluminum wire. Utilize the soft adjustable characteristic of warping of the soft of rubber coating soft aluminium silk, when the cover body 1 covers on the people face, cover body 1 forms the shape that adapts to the laminating in people's face, through the rubber coating soft aluminium silk of the edge all around of the adjustment cover body 1 for cover body 1 all closely laminate on people face all around, prevent that the dust in the outside air from covering the body 1 and the clearance department of people face laminating from inhaling, realize improving the sealed of gauze mask, reach the effect of isolated dust.

In order to realize that the gauze mask is suitable for different crowds, be connected with adjustable ear belt structure 4 in the both sides of the cover body 1, ear belt structure 4 includes the ear area 41 of two fixed connection in the cover body 1 side, and connect ear area 41 end and be used for adjusting the regulation of ear area 41 connection length and detain 42, adjust the length that detains the terminal position realization adjustment ear area 41 of 42 connection ear area through the adjustment, so that adapt to different crowds and wear the demand, guarantee the person of wearing when wearing the gauze mask, cover body 1 all can be closely laminated on the people face, reach the purpose of isolated dust, improve the suitability of gauze mask.

In summary, in one or more embodiments of the present application, the filter-replaceable dust mask of the present application is provided with a spun-bonded nonwoven fabric layer, a waterproof breathable film layer, a nylon mesh layer, an activated carbon layer, and a soft facing nonwoven fabric layer sequentially from outside to inside on the mask body, so that the multi-layer filtering effect improves the dust holding capacity of the mask, and improves the dust-proof effect. The interlayer in the mask body is an openable or closed bagging bag, the electrostatic adsorption filter is placed in the bagging bag, fine dust is captured through electrostatic attraction, the main dust blocking effect is achieved, the filtering performance of the mask is greatly improved, the reusable mask is achieved by replacing the filter through the openable or closed bagging bag, and the cost of using the mask is reduced.

The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.

Claims (10)

1. The dustproof mask with the replaceable filter element is characterized by comprising a mask body (1), wherein attachment structures (2) are arranged on the edges of the periphery of the mask body (1), two sides of the mask body (1) are respectively connected with adjustable ear band structures (4), a spunbonded non-woven fabric layer (11), a waterproof breathable film layer (12), a nylon wire mesh layer (13), an activated carbon layer (14) and a veneered soft non-woven fabric layer (15) are sequentially arranged on the mask body (1) from outside to inside, an interlayer in the mask body (1) forms an openable or closable containing bag (3), and an electrostatic adsorption filter element (10) is placed in the containing bag (3).

2. The filter-replaceable dust mask according to claim 1, wherein the bag (3) is formed by a partition between the spunbonded nonwoven fabric layer (11) and the waterproof breathable film layer (12).

3. The filter-replaceable dust mask according to claim 2, wherein a strip-shaped self-adhesive tape (31) is provided in the surface of the spun-bonded nonwoven fabric layer (11) that is attached to the waterproof and breathable film layer (12); the self-adhesive tape (31) forms an opening of the pouch (3).

4. The dust mask with the replaceable filter element according to claim 1, wherein the attachment structure (2) comprises an annular cavity (21) formed around the mask body (1) and a shaping adjusting member (22) installed in the annular cavity (21).

5. The filter-replaceable dust mask according to claim 4, wherein the setting adjuster (22) is an encapsulated soft aluminum wire.

6. The dust mask with the replaceable filter element according to claim 1, wherein the ear strap structure (4) comprises two ear straps (41) fixedly connected to the side edges of the mask body (1) and an adjusting buckle (42) connected to the tail ends of the ear straps (41) and used for adjusting the length of the ear straps (41).

7. The filter-replaceable dust mask according to claim 1, wherein the electrostatic adsorption filter (10) is a polylactic acid electrospun filter.

8. The filter-replaceable dust mask as claimed in claim 7, wherein the pore diameter of the polylactic acid electrospun filter is 3-4 μm.

9. The filter-replaceable dust mask according to claim 1, wherein the pore diameters of the spun-bonded nonwoven fabric layer (11) and the soft facing nonwoven fabric layer (15) are 8 to 10 μm, the pore diameters of the waterproof breathable film layer (12) and the nylon mesh layer (13) are 7 to 8 μm, and the pore diameter of the activated carbon layer (14) is 3 to 5 μm.

10. The filter-replaceable dust mask according to any one of claims 1 to 9, wherein the thickness of the spun-bonded nonwoven fabric layer (11) and the soft facing nonwoven fabric layer (15) is 0.5 to 0.8 mm; the thickness of the waterproof breathable film layer (12), the thickness of the nylon wire mesh layer (13) and the thickness of the activated carbon layer (14) are 0.6-1 mm, and the thickness of the electrostatic adsorption filter disc (10) is 0.8-1.2 mm.

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