CN212279993U

CN212279993U - Silica gel protective mask

Info

Publication number: CN212279993U
Application number: CN202020465698.5U
Authority: CN
Inventors: 张利宏
Original assignee: Shenzhen Saide Chuangxin Technology Co ltd
Current assignee: Shenzhen Saide Chuangxin Technology Co ltd
Priority date: 2020-04-01
Filing date: 2020-04-01
Publication date: 2021-01-05
Anticipated expiration: 2030-04-01

Abstract

The utility model discloses a silica gel protection type gauze mask, it includes: the silica gel shell is of an integrally formed structure, a breathing cavity with a cavity opening is formed in the silica gel shell, a plurality of first ventilation holes communicated with the breathing cavity are formed in the silica gel shell, and the plurality of first ventilation holes are opposite to the cavity opening; and the filter element is arranged in the breathing cavity and covers the plurality of first ventilation holes, and the filter element is used for filtering air. The utility model provides a shell of silica gel protection type gauze mask is the integrated into one piece structure, filters the piece and sets up in the breathing intracavity of gauze mask, and the overall structure of silica gel protection type gauze mask is simple, is favorable to save material cost and quality management and control cost, and the precision requirement to production technology is not high simultaneously, makes this silica gel protection type gauze mask easily produce the manufacturing, is favorable to promoting its production efficiency.

Description

Silica gel protective mask

Technical Field

The utility model relates to a protective articles for use technical field, in particular to silica gel protection type gauze mask.

Background

The protective mask is a mask worn on the face of a human body for air filtration or purification, and can be classified into various standards according to the protection grade of the mask, such as an N95 mask with the filtration rate of 95% on non-oily particles such as dust, acid mist, paint mist, microorganisms and the like.

At present, a part of protective masks are made of skin-friendly silica gel materials and used as mask shells, cavities are generally arranged in the masks, two openings are formed in the masks, and the shape of one opening is matched with the mouth and nose parts of a human body, so that the masks can cover the mouth and nose parts of the human body; the other opening is disposed opposite to the previous opening, and is generally a large-area through hole structure for providing a ventilation channel for the nose and mouth of a human body, and the opening can be called a ventilation port. The ventilation opening is also provided with a filter cotton to filter the particles in the outside air when the human mouth and nose inhales. Set up the filter pulp in the scavenge port, need support and fix the filter pulp through a plurality of support piece of plastic material, the shape of a plurality of support piece and size and the shape of scavenge port and the identical nature of size require highly, and also need carry out very reliable being connected between a plurality of support piece and the silica gel shell, otherwise appear breaking away from of support piece and silica gel shell easily, cause the external fracture of gauze mask. Therefore, the existing protective mask with filter cotton arranged in the breathing opening has higher precision requirements on the production process and the assembly process, is not beneficial to saving material cost and quality control cost, and is also not beneficial to improving the production efficiency.

The above is only for the purpose of assisting understanding of the technical solutions of the present application, and does not represent an admission that the above is prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a silica gel protection type gauze mask aims at simplifying the structure of silica gel protection type gauze mask, reduces the technological accuracy requirement of silica gel protection type gauze mask production.

In order to achieve the above object, the utility model provides a silica gel protection type gauze mask, include:

the silica gel shell is of an integrally formed structure, a breathing cavity with a cavity opening is formed in the silica gel shell, a plurality of first ventilation holes communicated with the breathing cavity are formed in the silica gel shell, and the plurality of first ventilation holes are opposite to the cavity opening; and

and the filter element is arranged in the breathing cavity and covers the first ventilation holes, and the filter element is used for filtering air.

In an embodiment of the present invention, the silicone shell is provided with a stamping area, the stamping area is disposed at an end of the silicone shell away from the cavity opening, and the plurality of first ventilation holes are disposed at intervals in the stamping area;

and/or a plurality of first ventilation holes are uniformly distributed;

and/or the aperture of at least part of the first ventilation holes is different;

and/or the cross-sectional shapes of at least part of the first ventilation holes are different;

and/or the spacing between at least some of the first transfer ports may be different.

In an embodiment of the present invention, the silicone shell is provided with a circle of covered edges at the cavity opening, and one end of the covered edges away from the silicone shell extends into the breathing cavity;

and/or, the inner wall of breathing cavity is equipped with the strengthening rib that a plurality of intervals set up, each the one end of strengthening rib is close to filter the piece setting, the other end orientation the accent extends.

In an embodiment of the present invention, the inner wall of the breathing cavity is provided with a mounting groove, and the mounting groove is arranged opposite to the cavity opening;

the first ventilating holes are formed in the bottom wall of the mounting groove;

the filter element is accommodated and limited in the mounting groove.

In an embodiment of the present invention, the filter member includes:

the first clamping piece is arranged on the inner wall of the breathing cavity and covers the first ventilation holes, and a first through hole communicated with the first ventilation holes is formed in the first clamping piece;

the second clamping piece is detachably arranged on one side, back to the plurality of first ventilation holes, of the first clamping piece and surrounds the first clamping piece to form an installation area, and a second through hole corresponding to the first through hole is formed in the second clamping piece; and

the first filter disc is arranged in the installation area and covers the first through opening and the second through opening.

In an embodiment of the present invention, the first clip is provided with at least one first reinforcing strip on an inner side wall of the first through hole, and the at least one first reinforcing strip divides the first through hole into at least two first airflow holes;

and/or the second clamping piece is provided with at least one second reinforcing strip on the inner side wall of the second through opening, and the second through opening is divided into at least two second air flow openings by the at least one second reinforcing strip.

In an embodiment of the present invention, the first clamping piece is provided with a plurality of hooks arranged at intervals around the periphery of the first opening, the second clamping piece is provided with a plurality of bayonets, and each of the hooks is fastened at each of the bayonets;

or, the first clamping piece is convexly provided with a plurality of positioning columns at the periphery of the first through opening, the second clamping piece is provided with a plurality of positioning holes, and each positioning column is inserted into each positioning hole.

In an embodiment of the present invention, the bottom wall of the breathing cavity is provided with an accommodating groove, and the bottom wall of the accommodating groove is provided with a plurality of second ventilation holes;

the silica gel protective mask further comprises a second filter sheet arranged in the accommodating groove, and the second filter sheet covers the plurality of second ventilation holes.

In an embodiment of the present invention, the silica gel protective mask further includes a positioning component;

the positioning assembly comprises a rotating rod and a first blocking piece, and the rotating rod can be arranged on the bottom wall of the breathing cavity in a penetrating mode in a transmission mode and is arranged close to the accommodating groove; the first blocking piece is arranged at one end of the rotating rod, which is far away from the bottom wall of the breathing cavity, and covers the notch of the accommodating groove; the first baffle plate is provided with a third port which is communicated with the accommodating groove and the breathing cavity;

or the positioning assembly comprises a second baffle and a limiting convex part arranged on one side of the second baffle, the silica gel shell is provided with a limiting hole corresponding to the positioning convex part, and the limiting convex part is inserted into the limiting hole so that the second baffle covers the notch of the accommodating groove; and the second baffle is provided with a fourth opening communicated with the accommodating groove and the breathing cavity.

In an embodiment of the present invention, the silica gel protective mask further includes an elastic band, the silica gel shell is provided with a first adjusting through hole and a second adjusting through hole which are oppositely disposed, and the first adjusting through hole and the second adjusting through hole are disposed adjacent to the cavity opening; a plurality of elastic adjusting blocks are arranged at two ends of the elastic band at intervals, the two ends of the elastic band are respectively penetrated through the first adjusting through hole and the second adjusting through hole, and at least two elastic adjusting blocks are respectively abutted against the peripheries of the first adjusting through hole and the second adjusting through hole; a plurality of the elasticity regulating block is used for adjusting the length that the elasticity band leaks in the silica gel shell outward. (ii) a

Or, silica gel protection type gauze mask still includes two elasticity and hangs the rope, two elasticity hang the rope set up relatively in the silica gel shell, and be close to the accent sets up, each the both ends that the rope was hung to elasticity with the silica gel shell is connected.

The utility model discloses technical scheme still sets up a plurality of first scavenge holes through the breathing chamber that has the accent in integrated into one piece's silica gel shell on the silica gel shell, and a plurality of first scavenge holes set up with the accent of breathing chamber relatively to but set up filtration piece of filtered air in breathing chamber, filter and cover a plurality of first scavenge hole settings. With this, when this silica gel protection type respirator wore in human face, human mouth nose can pass the air that the accent breathes the breathing intracavity, and the air of breathing intracavity is the external environment air and has promoted the quality of the air that the user breathed in the relatively clean air after filtering through filtering. In addition, the silica gel shell is of an integrally formed structure, so that the manufacturing process of the silica gel shell can be simplified; and will filter and set up in breathing the intracavity to cover a plurality of first breather holes and set up, as long as will filter the surface area design of piece and just can realize enough greatly, filter the setting of piece and filter the relative position between piece and a plurality of breather holes and easily handle the accuse, require not high to the precision of corresponding production technology, and the simple structure of this silica gel protection type gauze mask is favorable to saving quality management and control cost and promotion production efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural view of a silica gel protective mask according to an embodiment of the present invention;

FIG. 2 is a schematic view of the silica gel protective mask of FIG. 1 at another viewing angle;

FIG. 3 is a schematic view of another embodiment of the silica gel protective mask of the present invention;

FIG. 4 is a schematic view of the silica gel protective mask of FIG. 3 at another viewing angle;

FIG. 5 is a schematic structural view of the silica gel casing of FIG. 1;

FIG. 6 is a schematic view of the filter element of FIG. 1;

FIG. 7 is a schematic structural view of the filter element of FIG. 3;

FIG. 8 is a schematic structural view of the positioning assembly of FIG. 2;

FIG. 9 is a schematic structural view of the positioning assembly of FIG. 4;

fig. 10 is a schematic structural view of the elastic band of fig. 1 or 2.

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. Throughout this document, "and/or" is meant to include three juxtaposed aspects, exemplified by "A and/or B," including either the A aspect, or the B aspect, or both A and B. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a silica gel protection type gauze mask wears in human face for filtration or purification, and the accessible is changed inside first filter element 23 and the second filter element that has filtering capability and is realized used repeatedly.

In the embodiment of the present invention, referring to fig. 1 and shown in fig. 2 to 4, the silica gel protective mask includes:

the silicone rubber shell 1 is of an integrally formed structure, the silicone rubber shell 1 is provided with a breathing cavity 11 with a cavity opening 111, and is provided with a plurality of first ventilation holes 121 communicated with the breathing cavity 11, and the plurality of first ventilation holes 121 are arranged opposite to the cavity opening 111; and

and a filter member 2 disposed in the breathing chamber 11 and covering the plurality of first ventilation holes 121, wherein the filter member 2 is used for filtering air.

In the present embodiment, the shape of the silicone housing 1 is not limited, and the cross-sectional shape thereof may be oval or the like. Silica gel shell 1's material is silica gel, because of silica gel material itself has characteristics such as easy machine-shaping, good elasticity, good water-fast, resistant grease characteristic for silica gel shell 1 is when wearing in human face, and silica gel shell 1 can stand erosion such as sweat and the grease of human face secretion, makes silica gel shell 1 have good the experience of wearing simultaneously. The silica gel shell 1 adopts an integrated forming structure, and the integrated forming mode can be that the silica gel raw material is integrally formed after an injection molding process and a mould pressing process. The integrally formed structure of the silica gel shell 1 is beneficial to keeping the consistency of the overall appearance of the silica gel shell 1 without interpenetration of elements such as other plastic materials and the like, so that the external aesthetic feeling of the silica gel shell 1 is improved; on the other hand, the processing procedure of the silica gel shell 1 is saved, the structural strength of the silica gel shell 1 is ensured, and the silica gel shell is not easy to crack due to folding or tearing.

Silica gel shell 1 has respiratory cavity 11, and respiratory cavity 11 has accent 111, and this silica gel protection type gauze mask is worn when human face, and human mouth nose position passes through in accent 111 gets into respiratory cavity 11 to breathe the air in the respiratory cavity 11. The opening shape of the mouth 111 can be oval so that the mouth and the nose of the human body are matched, and the comfort of the silica gel protective mask during wearing is improved.

Set up the first scavenge port 121 that a plurality of intervals set up on silica gel shell 1, a plurality of first scavenge ports 121 are seted up in silica gel shell 1 and are kept away from the one end of accent 111, and a plurality of first scavenge ports 121 are used for communicateing external environment and breathing cavity 11. The shape of each first ventilation hole 121 may be various, such as circular, diamond, square, triangular, etc., and is not limited herein. The distribution of the plurality of first ventilation holes 121 may be various, such as uniform distribution, gradually increasing density in a straight line direction, and spiral ring distribution, which is not limited herein.

The filtering member 2 is used for filtering air entering the breathing cavity 11 from the first ventilation holes 121, the filtering member 2 may include a plurality of filtering layers, such as a non-woven fabric layer and a melt-blown fabric layer, and the filtering member 2 may be disposed on the inner wall of the breathing cavity 11 by bonding, clamping, plugging, etc. so that the filtering member 2 completely covers the plurality of first ventilation holes 121. When the silica gel protective mask is used, when the mouth and the nose of a human body inhale air in the breathing cavity 11 through the mouth 111, the air pressure in the breathing cavity 11 is reduced, and external air flows to the filter member 2 through the first ventilating holes 121 and flows into the breathing cavity 11 after being filtered by the filter member 2 for the human body to inhale; when the mouth and nose of a human body exhale waste gas into the breathing cavity 11 through the cavity opening 111, the air pressure in the breathing cavity 11 is increased, and the air in the breathing cavity 11 flows into the external environment after passing through the filter element 2 and the first ventilation holes 121; thus, the gas exchange between the human body and the external environment is realized, and one-time breathing circulation of the human body is completed.

This embodiment scheme still sets up a plurality of first scavenge holes 121 through the breathing chamber 11 that has accent 111 in integrated into one piece's silica gel shell 1, a plurality of first scavenge holes 121 and the relative setting of accent 111 of breathing chamber 11 to but set up filterable air's filtration piece 2 in breathing chamber 11, filter piece 2 and cover a plurality of first scavenge holes 121 and set up. Therefore, when this silica gel protection type respirator wore in human face, human mouth nose can pass the air in the accent 111 breathing cavity 11, and the air in the breathing cavity 11 is the relatively clean air of external environment air after filtering through filtering piece 2, has promoted the quality of the air that the user breathed. In addition, because the silica gel shell 1 is of an integrally formed structure, the manufacturing process of the silica gel shell 1 can be simplified; and will filter piece 2 and set up in breathing cavity 11 to cover a plurality of first scavenge ports 121 settings, as long as will filter the surface area design of piece 2 and just can realize enough greatly, filter the setting of piece 2 and filter the relative position between piece 2 and a plurality of scavenge ports and control easily, it is not high to the required precision of corresponding production technology, and the simple structure of this silica gel protection type gauze mask is favorable to saving quality management and control cost and promotion production efficiency.

In the embodiment of the present invention, referring to fig. 1 and shown in fig. 2 to 4, the silica gel shell 1 is provided with a stamping area 12, the stamping area 12 is disposed at one end of the silica gel shell 1 away from the cavity opening 111, and the plurality of first ventilation holes 121 are disposed at intervals in the stamping area 12;

and/or the plurality of first ventilation holes 121 are uniformly distributed;

and/or, at least part of the first ventilation holes 121 have different aperture;

and/or the cross-sectional shapes of at least part of the first ventilation holes 121 are different;

and/or the spacing between at least some of the first transfer ports 121 may be different.

In this embodiment, the stamping region 12 is a specific region formed by pressing the silicone shell 1 in a molding process, and may include a circle of convex stamping boundary and a region located inside the stamping boundary, and the stamping region 12 is disposed at an end of the silicone shell 1 away from the cavity opening 111. The plurality of first ventilation holes 121 and the stamping area 12 can be formed by die pressing in a die pressing process of the silicone shell 1 through a specific pressing die, so that the plurality of first ventilation holes 121 in the stamping area 12 are formed through one-time processing, the opening procedure and time of the plurality of first ventilation holes 121 are saved, and the production efficiency of the silicone shell 1 is improved.

The plurality of first ventilation holes 121 may be disposed in various manners, for example, the plurality of first ventilation holes 121 may be disposed in the silica gel housing 1 in a uniformly distributed manner, which includes but is not limited to a matrix arrangement and a spiral ring arrangement. For another example, the plurality of first ventilation holes 121 may have different spacings between at least some of the plurality of first ventilation holes 121, that is, the plurality of first ventilation holes 121 may have different distribution densities, which are gradually increased in density in a straight line direction, or gradually decreased in density from a position adjacent to the center of the stamp region 12 to a position away from the center of the stamp region 12.

The plurality of first transfer ports 121 may have various shapes, for example, the cross-sectional shape of the first transfer ports 121 may be circular, square, triangular, diamond, etc., and some of the plurality of first transfer ports 121 may have different shapes. The plurality of first ventilation holes 121 may have different apertures of some first ventilation holes 121, for example, the apertures of the first ventilation holes 121 corresponding to the mouth of the human body are larger, so as to increase the amount of gas passing through the first ventilation holes 121 exhaled by the mouth of the human body per unit time, reduce the obstruction of the human body during exhalation, and improve the user experience.

In the embodiment of the present invention, referring to fig. 5 and shown in fig. 2 or fig. 4, a circle of covered edge 13 is disposed at the cavity opening 111 of the silica gel shell 1, and one end of the covered edge 13 away from the silica gel shell 1 extends into the breathing cavity 11;

and/or, the inner wall of breathing chamber 11 is equipped with the strengthening rib 14 that a plurality of intervals set up, and the one end of each strengthening rib 14 is close to filtering piece 2 and is set up, and the other end extends towards accent 111.

In this embodiment, the wrapping 13 may be made of silica gel, and may be integrally formed with the silica gel housing 1, one end of the wrapping 13 is connected to the periphery of the orifice 111 or connected to the inner sidewall of the orifice 111, and the other end of the wrapping 13 is turned inward toward the breathing cavity 11 to form an inner wrapping at the orifice 111, when the silica gel housing 1 is worn on the face of a human body, the nose and mouth portion of the human body may push the wrapping 13 to further turn inward toward the breathing cavity 11, and the wrapping 13 contacts with the nose and mouth portion of the human body to partially wrap the nose and mouth portion of the human body, thereby reducing the scratch feeling of the nose and mouth portion of the human body and improving user experience.

The material of the reinforcing ribs 14 may be silica gel. It can with silica gel shell 1 integrated into one piece, the arris muscle structure on 11 inner walls of respiratory cavity is located for protruding to strengthening rib 14, its effect is supplementary reinforced silica gel shell 1's structural strength, so that silica gel shell 1 is difficult to extrude or tear the time warp at the external force, even compel great external force produce the deformation back, also can relatively resume the original state easily when external force removes, make this silica gel protection type gauze mask be convenient for fold and accomodate, also be favorable to promoting its life simultaneously.

In the embodiment of the present invention, referring to fig. 5 and shown in fig. 2 or fig. 4, an installation groove 15 is formed on the inner wall of the breathing cavity 11, and the installation groove 15 is disposed opposite to the cavity opening 111;

the first ventilating holes 121 are formed in the bottom wall of the mounting groove 15;

the filter member 2 is received and retained in the mounting groove 15.

In this embodiment, filter size and shape of 2 and the size and the shape phase-match of mounting groove 15 to when making filter 2 hold in mounting groove 15, it is spacing with the inside wall butt of mounting groove 15 to filter the periphery wall of 2, filter the one end of 2 and the diapire butt of mounting groove 15, filter 2 can be connected through interference fit between the inner wall of mounting groove 15, also can be connected through modes such as bonding, joint, grafting. The mounting groove 15 is used for accommodating and limiting the filter member 2, so that the filter member 2 can completely cover the first ventilation holes 121, and the outside air entering from the first ventilation holes 121 can enter the breathing cavity 11 only after being filtered by the filter member 2, thereby ensuring that the air in the breathing cavity 11 is clean enough and can be inhaled by a human body.

In an embodiment of the present invention, referring to fig. 6 in combination with fig. 2, the filter member 2 includes:

the first clamping piece 21 is arranged on the inner wall of the breathing cavity 11 and covers the plurality of first ventilation holes 121, and the first clamping piece 21 is provided with a first through hole 211 communicated with the plurality of first ventilation holes 121;

the second clamping piece 22 is detachably arranged on one side, back to the plurality of first ventilating holes 121, of the first clamping piece 21 and forms an installation area with the first clamping piece 21 in an enclosing mode, and the second clamping piece 22 is provided with a second through hole 221 corresponding to the first through hole 211; and

the first filter 23 is disposed in the mounting region and covers the first and

second openings

211 and 221.

In this embodiment, the first clip piece 21 and the second clip piece 22 may be made of silicon rubber, plastic, etc., and are not limited herein. The shape of the first jaw 21 and the second jaw 22 is not limited, and may be, for example, oval.

The first clamping piece 21 can be connected with the inner wall of the breathing cavity 11 by bonding, splicing, clamping and the like, and the first clamping piece 21 is arranged corresponding to the plurality of first ventilation holes 121 and covers the plurality of first ventilation holes 121. The first clamping piece 21 further has a first through hole 211 simultaneously communicating with the plurality of first ventilation holes 121, and the first through hole 211 is disposed opposite to the plurality of first ventilation holes 121 for allowing air in the first through hole 211 to pass through the first clamping piece 21.

Second clamping piece 22 can be dismantled with first clamping piece 21 and be connected through modes such as grafting, joint, and second clamping piece 22 is located one side of first clamping piece 21 to enclose with second clamping piece 22 and close and form the installation interval, this installation interval is used for installation and location first filter 23. The second clip 22 further defines a second opening 221 communicating with the breathing cavity 11, and the second opening 221 is used for communicating the installation area with the breathing cavity 11.

The first filter sheet 23 is for filtering air, and may include at least one nonwoven fabric layer and at least one meltblown fabric layer stacked one on another. First filter piece 2 is fixed a position in the installation interval by first clamping piece 21 and the cooperation centre gripping of second clamping piece 22, first filter piece 2 covers or shelters from first opening 211 and second opening 221 simultaneously, so that the outside air that gets into from a plurality of first scavenge ports 121, need first opening 211 in proper order, it breathes in the chamber 11 to filter piece 2 and second opening 221 back entering, outside air must be through the filtration that filters piece 2 later can get into breathing chamber 11 promptly, guarantee with this that the air in the chamber 11 of breathing is enough clean, can supply the human body to inhale.

In the embodiment of the present invention, referring to fig. 6 in combination with fig. 2, the first clip 21 has at least one first reinforcing strip 2111 on the inner sidewall of the first through hole 211, and the first through hole 211 is divided into at least two first air flow holes 2112 by the at least one first reinforcing strip 2111;

and/or, the second clip 22 is provided with at least one second reinforcing strip 2211 on the inner side wall of the second opening 221, and the at least one second reinforcing strip 2211 divides the second opening 221 into at least two second air flow openings 2212.

In this embodiment, the material of the at least one first reinforcing strip 2111 may be silicon rubber, plastic, etc., and the at least one first reinforcing strip 2111 and the first clip 21 may be integrally formed. The first reinforcing strip 2111 is used to assist in reinforcing the structural strength of the first clamping piece 21, and can be in abutting engagement with the first filter element 2 in the mounting cavity, so as to fix the first filter element 2. The at least one first reinforcing strip 2111 divides the first air flow port 211 into at least two first air flow ports 2112, the at least two first air flow ports 2112 may have different apertures and shapes, and the first air flow ports 2112 are used for circulating air.

The at least one second reinforcing strip 2211 may be made of silicon gel, plastic, etc., and the at least one second reinforcing strip 2211 may be integrally formed with the second clip 22. The second reinforcing strip 2211 is used for assisting in reinforcing the structural strength of the second clamping piece 22, and can be in butt fit with the first filter piece 2 in the mounting cavity to fix the second filter piece 2. The at least one second reinforcing strip 2211 may also be disposed in a one-to-one correspondence with the at least one first reinforcing strip 2111 such that the at least one first reinforcing strip 2111 cooperates with the at least one second reinforcing strip 2211 to retain and position the first filter element 2. The at least one second reinforcing bar 2211 divides the second passage 221 into at least two second air flow openings 2212, the at least two second air flow openings 2212 may have different apertures and shapes, and the second air flow openings 2212 are used for circulating air.

In the embodiment of the present invention, referring to fig. 2, and referring to fig. 4, 6 and 7, the first clip piece 21 is provided with a plurality of hooks 212 at intervals around the first through hole 211, the second clip piece 22 is provided with a plurality of bayonets 222, and each hook 212 is fastened to each bayonet 222;

or, the first clip 2121 has a plurality of positioning posts 213 protruding from the periphery of the first opening, the second clip 22 has a plurality of positioning holes 223, and each positioning post 213 is inserted into each positioning hole 223.

In the present embodiment, the bayonet 222 is for allowing a card to pass through, and each of the hooks 212 passes through each of the bayonet 222 and abuts against and limits the position of the periphery of each of the bayonet 222. The hook 212 is broken to one side to separate the hook 212 from the second clip piece 2222, so that the first clip piece 2121 and the second clip piece 2222 can be detached from each other, and the first filter element 2 between the first clip piece 2121 and the second clip piece 2222 can be replaced.

Optionally, a plurality of positioning columns 213 are disposed on a side of the first clamping piece 21 facing away from the first ventilation hole 121, a plurality of positioning holes 223 are disposed on the second clamping piece 22 corresponding to the plurality of positioning columns 213, and each positioning column 213 is inserted into each positioning hole 223, so that the first clamping piece 21 is detachably connected to the second clamping piece 22 through the insertion fit between the plurality of positioning columns 213 and the plurality of positioning holes 223, and thus the first clamping piece 21 and the second clamping piece 22 can be detached from each other to replace the first filter 23 between the first clamping piece 2121 and the second clamping piece 2222.

In the embodiment of the present invention, as shown in fig. 1 to 4, the bottom wall of the breathing cavity 11 is provided with an accommodating groove 16, and the bottom wall of the accommodating groove 16 is provided with a plurality of second ventilation holes 161;

the silica gel protective mask further includes a second filter (not shown) disposed in the receiving groove 16, and the second filter covers the plurality of second ventilation holes 161.

In this embodiment, the second filter sheet may include at least one nonwoven fabric layer and at least one meltblown fabric layer stacked one on another, and the second filter sheet is used for filtering air. The second filter element is arranged in the accommodating groove 16, the outer peripheral wall of the second filter element is abutted with the inner side wall of the accommodating groove 16 in a limiting manner, so that the external air entering from the plurality of second ventilation holes 161 needs to firstly pass through the second filter element 2 for filtering and then is sucked by the human body in the breathing cavity 11.

The plurality of second ventilation holes 161 and the plurality of first ventilation holes 121 are arranged at intervals, and the plurality of second ventilation holes 161 are used for communicating the breathing cavity 11 with the external environment so as to realize the gas exchange between the human body and the external environment. A plurality of second draught holes 161 set up in the diapire of breathing chamber 11, when this silica gel protection type gauze mask was worn in human face, human nasal part is just to a plurality of second draught holes 161, with this, the gaseous accessible a plurality of second draught holes 161 of human nasal part exhalation outside environment, and the inspiratory air of human nasal part also can directly supply through a plurality of second draught holes 161, with this unobstructed nature when promoting human breathing, further promote user experience.

In the embodiment of the present invention, referring to fig. 8 and 9 in combination with fig. 1 and 3, the silica gel protective mask further includes a positioning component 3;

the positioning assembly 3 comprises a rotating rod 31 and a first blocking piece 32, wherein the rotating rod 31 can be arranged on the bottom wall of the breathing cavity 11 in a transmission way and is arranged adjacent to the accommodating groove 16; the first blocking piece 32 is arranged at one end of the rotating rod 31 far away from the bottom wall of the breathing cavity 11 and covers the notch of the accommodating groove 16, and the first blocking piece 32 is provided with a third through hole 321 for communicating the accommodating groove 16 and the breathing cavity 11;

or, the positioning assembly includes a second blocking piece 33 and a limiting convex portion 331 arranged on one side of the second blocking piece 33, the silica gel housing 1 is provided with a limiting hole 19 corresponding to the positioning convex portion 331, and the limiting convex portion 331 is inserted into the limiting hole 19, so that the second blocking piece 33 covers the notch of the accommodating groove 16; the second blocking piece 33 is provided with a fourth port 331 for communicating the accommodating groove 16 and the breathing cavity 11.

In this embodiment, the positioning assembly 3 is used for positioning the second filter element 2 in the accommodating groove 16, specifically, the positioning assembly 3 may include a rotating rod 31 rotatably penetrating the silica gel housing 1 and a first blocking piece 32 connected to the rotating rod 31, the rotating rod 31 and the first blocking piece 32 may be made of silica gel or plastic, and the rotating rod 31 and the first blocking piece 32 may be integrally formed. The first blocking piece 32 is shifted to drive the rotating rod 31 to rotate relative to the silica gel shell 1, so that the first blocking piece 32 covers the notch of the accommodating groove 16 or is moved outwards from the notch of the accommodating groove 16, and thus the first filter sheet 23 can be limited between the bottom wall of the accommodating groove 16 and the first blocking piece 32, or the second filter sheet is taken out of and replaced in the accommodating groove 16.

The first blocking sheet 32 is provided with a third through hole 321, and the third through hole 321 is used for communicating the accommodating groove 16 with the breathing cavity 11, so that the outside air filtered by the second filter can enter the breathing cavity 11 through the third through hole 321 for the user to inhale. It can be understood that the third port 321 should be sized to satisfy: when the first blocking piece 32 covers the notch of the accommodating groove 16, the second filter sheet is limited between the first blocking piece 32 and the bottom wall of the accommodating groove 16, and the second filter sheet cannot slide into the breathing cavity 11 through the third through hole 321, so that the outside air passing through the second ventilating hole 161 can enter the breathing cavity 11 after being filtered by the second filter sheet, and the air in the breathing cavity 11 is ensured to be clean enough and can be inhaled by the human body.

Optionally, the positioning assembly 3 includes a second blocking piece 33 and a limiting protrusion 34 disposed on one side of the second blocking piece 33, the second blocking piece 33 may be made of silica gel, the second blocking piece 33 is detachably disposed on the silica gel housing 1 through the insertion fit between the limiting protrusion 34 and the limiting hole 19, and after the second blocking piece 33 is detached from the silica gel housing 1, the second filter disc in the accommodating groove 16 may be replaced. The second blocking piece 33 is provided with a fourth through hole 331, and the fourth through hole 331 is used for communicating the accommodating groove 16 with the breathing cavity 11, so that the outside air filtered by the second filter can enter the breathing cavity 11 through the fourth through hole 331 for the user to inhale. It can be understood that the fourth port 331 is sized to satisfy the following requirements: when the second blocking piece 33 covers the notch of the accommodating groove 16, the second filter sheet is limited between the second blocking piece 33 and the bottom wall of the accommodating groove 16, and the second filter sheet cannot slide into the breathing cavity 11 through the fourth through hole 331, so that the outside air passing through the second ventilating hole 161 can enter the breathing cavity 11 after being filtered by the second filter sheet, and the air in the breathing cavity 11 is ensured to be clean enough and can be inhaled by the human body. It can be understood that the second blocking plate 33 can be provided with a plurality of limiting convex portions 331, the silica gel housing 1 can be correspondingly provided with a plurality of limiting holes 19, and each limiting convex portion 331 is inserted into each limiting hole 19, so as to realize more reliable connection between the first blocking plate 32 and the silica gel housing 1, and meanwhile, to facilitate more reliable positioning of the second filter sheet in the accommodating groove 16.

In the embodiment of the present invention, referring to fig. 10 and shown in fig. 1 to 4, the silica gel protective mask further includes an elastic band 4; the silica gel shell 1 is provided with a first adjusting through hole 17 and a second adjusting through hole 18 which are oppositely arranged, and the first adjusting through hole 17 and the second adjusting through hole 18 are arranged adjacent to the cavity opening 111; a plurality of elastic adjusting blocks 41 arranged at intervals are arranged at two ends of the elastic band 4, the two ends of the elastic band 4 are respectively penetrated through the first adjusting through hole 17 and the second adjusting through hole 18, and at least two elastic adjusting blocks 41 are respectively abutted with the peripheries of the first adjusting through hole 17 and the second adjusting through hole 18; the elastic adjusting blocks 41 are used for adjusting the length of the elastic band 4 leaking out of the silica gel shell 1;

or, silica gel protective type gauze mask still includes two elasticity and hangs rope 5, and two elasticity are hung rope 5 and are set up in silica gel shell 1 relatively to be close to chamber 111 mouth and set up, and the both ends of each elasticity are hung rope 5 and are connected with silica gel shell 1.

In this embodiment, the elastic band 4 and the elastic adjusting block 41 may be made of silicon, and the elastic adjusting block 41 and the elastic band 4 may be integrally formed. The elastic band 4 is wholly in a band shape or a strip shape and can be elastically extended or contracted, and the elastic band 4 is used for wearing the silica gel protective mask on the head of a human body so as to cover the mouth and nose parts of the human body.

The elastic adjusting block 41 may be a block structure and has elasticity, that is, it may be elastically deformed by naked eyes under the action of external force, so that it can pass through the first adjusting through hole 17 or the second adjusting through hole 18 when it is deformed by extrusion, and cannot pass through the first adjusting through hole 17 or the second adjusting through hole 18 when it is restored to a natural state. Therefore, the adjusting block passes through the first adjusting through hole 17 or the second adjusting through hole 18 by extruding the adjusting block, so that the length of the elastic belt 4 which leaks out of the silica gel shell 1 can be correspondingly adjusted, and the elastic belt is suitable for being worn by users with different head types or head circumferences.

Optionally, the cross-sectional area of each elastic adjusting block 41 decreases gradually from the end close to the center of the elastic band 4 to the end far away from the center of the elastic band 4, so that the elastic adjusting block 41 has a certain unidirectional adjusting function, that is, the end with the smaller cross-sectional area of the elastic adjusting block 41 can easily penetrate into the first adjusting through hole 17 or the second adjusting through hole 18, and the end with the larger cross-sectional area of the elastic adjusting block 41 can more difficultly penetrate through the first adjusting through hole 17 or the second adjusting through hole 18, so that after the length of the elastic band 4 leaking out of the silica gel shell 1 is adjusted, the stability of the length of the elastic band 4 leaking out of the silica gel shell 1 is maintained, and the reliability of the silica gel protective mask when being worn on the head of a human body is ensured.

Optionally, the silica gel protective mask is worn by the elastic hanging ropes 5, specifically, the elastic hanging ropes 5 may be rubber ropes or the like, and two ends of each elastic hanging rope 5 may be bonded to the silica gel shell 1 by bonding, thermocompression bonding, sewing or the like. The elastic hanging ropes 5 can be hung on the ears of a human body, the two elastic hanging ropes 5 are hung on the ear back parts of the two ears of the human body, so that the silica gel protective mask can be worn reliably and comfortably on the human body, and the silica gel shell 1 is covered on the mouth and nose parts of the human body by means of the two elastic hanging ropes 5, so that the air filtering protective function of the silica gel protective mask can be realized.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A silica gel protective mask, comprising:

2. The silica gel protective mask of claim 1 wherein said silica gel shell has a die area, said die area being disposed at an end of said silica gel shell distal from said orifice, said first plurality of ventilation holes being spaced apart within said die area;

and/or a plurality of first ventilation holes are uniformly distributed;

3. The silica gel protective mask of claim 1, wherein the silica gel shell has a rim at the orifice, and one end of the rim remote from the silica gel shell extends into the breathing cavity;

4. The silica gel protective mask of claim 1, wherein an installation groove is formed in an inner wall of the breathing cavity, and the installation groove is opposite to the cavity opening;

the filter element is accommodated and limited in the mounting groove.

5. A silica gel protective mask according to any one of claims 1 to 4 wherein said filter comprises:

6. The silica gel protective mask of claim 5 wherein said first clip has at least one first reinforcing strip on an interior sidewall of said first port, said at least one first reinforcing strip dividing said first port into at least two first airflow ports;

7. The silica gel protective mask of claim 5, wherein the first clip has a plurality of hooks spaced apart from each other around the periphery of the first opening, and the second clip has a plurality of notches, each hook being engaged with each notch;

8. The silica gel protective mask of any one of claims 1 to 4, wherein the bottom wall of the breathing cavity is provided with a receiving groove, and the bottom wall of the receiving groove is provided with a plurality of second ventilation holes;

9. A silica gel protective mask of claim 8, wherein said silica gel protective mask further comprises a positioning assembly;

10. The silica gel protective mask of any one of claims 1 to 4, further comprising an elastic band, wherein the silica gel shell defines a first adjusting through hole and a second adjusting through hole that are oppositely disposed, and the first adjusting through hole and the second adjusting through hole are disposed adjacent to the mouth; a plurality of elastic adjusting blocks are arranged at two ends of the elastic band at intervals, the two ends of the elastic band are respectively penetrated through the first adjusting through hole and the second adjusting through hole, and at least two elastic adjusting blocks are respectively abutted against the peripheries of the first adjusting through hole and the second adjusting through hole; the elastic adjusting blocks are used for adjusting the length of the elastic belt which leaks out of the silica gel shell;