CN207136308U - Air inlet and outlet valve and cover body integrated environment-friendly mask with replaceable filter element - Google Patents

Abstract

An air inlet and outlet valve and cover integrated environment-friendly mask with a replaceable filter element comprises a shell type outer cover, a thin soft cover body and a filter element, wherein the shell type outer cover is formed by folding a plane plastic; and the mask is provided with an air inlet valve for air to enter in one direction and one-way exhaust valves on two sides respectively, so that the user can breathe more smoothly when wearing the mask, and the infiltration of the filter is reduced.

Description

Intake and exhaust valves and cover body integrated replaceable filter environmental protection mask

technical field

The utility model relates to a replaceable filter environmental protection mask with integrated intake and exhaust valves and a cover body, especially a mask structure with separate intake and exhaust valves, and can be selectively removed. Filter media and replace with new or other efficient filter media.

Background technique

With the advancement of industry and the increase of population, environmental pollution is becoming more and more serious, and the air quality is also declining. In the environment where the air pollution of PM2.5 suspended particles is more serious, masks have become the best weapon at present. Generally, masks are made of breathable fabrics. The mask covers the mouth and nose so that the mouth and nose cannot be in direct contact with the outside air. In order to further prevent harmful substances in the air from penetrating the mask and being inhaled by the human body, materials that can absorb harmful substances are generally sandwiched between breathable fabrics. In order to prevent harmful substances from penetrating the cover body and being inhaled by the mouth and nose.

In order to maintain a certain degree of tightness, most general masks have been equipped with metal nose wires on the upper edge, such as plastic-coated iron wires or aluminum strips, to improve the tightness and prevent the gap between the nose and the face from being blocked. Due to the shape, size and height of your nose, the nose is the most prone to leakage and the most difficult to prevent leakage. After pressing the nose line with your hands and shaping it slightly, it will still be affected by slight facial muscles after wearing it for a few minutes. Large gaps are created due to movement, especially when the masks are supported by the elastic ear loops or straps on both sides, so that pollutants, viruses and bacteria in the air can easily enter. This has always been a fatal shortcoming of masks.

In recent years, due to the impact of industrialization, PM2.5 pollution has become increasingly serious, and PM2.5 is a very fine particle that can penetrate the alveoli and directly enter the blood vessels. With the blood circulation throughout the body, the toxic substances attached to PM2.5 become human body Pollutants that cannot be defended naturally, currently use masks to avoid the invasion of PM2.5. After use, the masks often need to be replaced because they cannot be cleaned.

Please refer to the applicant's basis shown in Figure 7. Generally, disposable masks cannot achieve good airtightness, and they will still inhale harmful substances; and they lose their efficacy after a short period of use, so they need to be discarded, but they also cause garbage. Due to the problem of incremental burden, an "environmentally friendly mask with replaceable filter" was created, and the patent number CN203723480U was obtained. and a filter between the elastic sheets. Since the filter is replaceable, users can replace it at any time according to the use environment and conditions.

However, the CN203723480U patent still has the following disadvantages in use:

1. Although the mask body is a hard type combined with a soft type, the user's face shape is different, so users with a sharper chin or a more protruding cheekbones are not easy to fit tightly during use, and the gap between the face and the mask There will be gaps, which will reduce the function of the mask.

2. There are two triangular valves on both sides of the mask to allow the user to exhale the air. However, when the mask is in use, the user's mouth and nose are aligned with the filter, and the user's mouth and nose are aligned with the filter. The exhaled air first contacts the filter sheet, and then it is discharged from the valves on both sides, and the breath exhaled by the user contains water vapor, which then infiltrates the filter sheet and reduces its filtering function.

3. The original circular filter is set to be clamped and fixed, which has defects in structural strength and air tightness.

Therefore, how to solve the above-mentioned deficiencies is an urgent problem to be solved by the industry.

Utility model content

The main purpose of the utility model is to provide an environmental mask with replaceable filter disc integrated with the intake and exhaust valve and the cover body.

For reaching above-mentioned purpose, its technical means is that described mouth mask is to comprise a shell-type outer cover, a thin soft cover body, two sides respectively one exhaust valve, an air inlet valve retainer (also filter seat), A filter sheet and at least one elastic belt, wherein the thin soft cover has intake valves formed by multiple secant lines, and the intake valve block has a plurality of intake holes corresponding to the intake valves, The air intake valve will open and close corresponding to the air intake hole as the user breathes, because the area of the air intake hole is smaller than the intake valve, so when the user exhales, the intake valve will The barrier of the air intake valve does not open outwards, so that the gas exhaled by the user will be discharged from the exhaust valves on both sides of the mask, thereby avoiding the problem of infiltration of the filter. Another purpose of the present invention is that when the medium for filtering harmful substances fails, the user only needs to replace the filter medium in the mask, but does not need to discard the entire mask, so as to reduce the increase of waste.

In order to achieve the above purpose, the technical means is that the intake valve stopper has a filter seat that can accommodate the filter, and the filter can be made of a breathable material and a medium wrapped in the breathable material, Different media can be selected for different harmful substances. When the filter has failed, it can be removed from the mask and replaced with a new filter to maintain the filtering function without discarding the entire mask.

Specifically, the utility model provides an environmentally friendly mask with replaceable filter pieces integrated with the intake and exhaust valves and the cover body, including:

A shell-type cover, which has a flip-up first sheet and at least one elastic belt, wherein the first sheet has a plurality of air inlet holes, and the two sides of the shell-type cover are respectively provided with an exhaust hole , and there are two symmetrical folding lines corresponding to the corners of the mouth of the human body to the chin, and there is an arc-shaped notch corresponding to the chin of the human body, through which the folding line and the notch increase the tightness between the mask and the user ;

A thin soft cover is combined in the shell-type outer cover to form a triangular structure, which is elastic in itself, and the user's body is held back by the pulling force of the elastic band worn on the user's head. The mouth and nose are sealed and covered in the mask, and one side of the thin soft cover is sunken to have a plurality of intake valves formed by a plurality of secant lines, a fixing hole is arranged in the middle, and the side There are a plurality of sockets, and further, the two sides of the thin soft cover are respectively provided with an exhaust valve corresponding to the exhaust hole, so as to discharge the gas exhaled by the user;

An air inlet valve baffle, whose three sides extend upwards to form a filter seat, with a first fixing hole in the center, and a plurality of air inlet holes opposite to the air inlet valve. In addition, the air inlet valve The three sides of the baffle extend downwards and are provided with a plurality of inserts that can be inserted into the insertion holes, so as to fix the air inlet valve baffle in the thin soft cover; and

A filter sheet, the three sides of one side extend with a sealing part, when the filter sheet is accommodated in the filter seat of the air inlet valve stopper, the sealing part is covered on the air inlet The baffle edge of the valve baffle is used to increase the tightness, and to further isolate different harmful substances through the filter.

In the embodiment of the utility model, the shell-type cover is formed by bending a bendable sheet body, and the bendable sheet body is composed of a plurality of sheet bodies, and the sheet body is are pivotally combined with each other.

In the embodiment of the present invention, when the thin soft cover body is combined with the shell-type cover, its side will be higher than the edge of the shell-type cover to form a filter gasket to seal the filter in it.

In the embodiment of the utility model, the shell-type outer cover has a plurality of insertion pieces and jacks corresponding to the insertion pieces. When the filter piece is put into the mask, it can be inserted into The filter sheet is fixed in the accommodating space of the mask.

In the embodiment of the present invention, the inserting piece is provided with a protrusion exposing the insertion hole, the first piece can be opened through the protrusion, and the filter piece can be taken out from the accommodating space.

In the embodiment of the utility model, the exhaust valve of the thin soft cover is combined with an air outlet valve flap, and the outlet valve flap is provided with an opening, and the area of the opening is smaller than that of the exhaust valve. It is used to prevent the exhaust valve from opening into the mask, so that when the user wears the mask to breathe, the exhaled gas will be discharged from the exhaust valve.

In the embodiment of the present invention, the area of the air inlet hole of the air intake valve block is smaller than that of the air intake valve. When the user exhales, the air intake valve is blocked by the air intake valve block and does not move outward. open action.

In the embodiment of the utility model, the shell-type outer cover, the thin soft cover body, the air intake valve stopper and the elastic belt body respectively have a plurality of corresponding fixing holes for combination, and are combined and fixed by a plurality of fixing components.

In the embodiment of the utility model, the elastic belt body can be selected from ear hangers, headband hangers or three-point hangers.

Description of drawings

Fig. 1 is a schematic diagram of a plane folding shell-type cover of the present invention.

Figure 2 is an exploded view of the utility model.

Fig. 3 is the overall schematic diagram of the utility model.

Fig. 4 is another overall schematic diagram of the utility model.

Fig. 5 is another overall schematic diagram of the utility model.

Fig. 6 is a schematic diagram of the air flow in use of the utility model.

Fig. 7 is an exploded view of the prior art.

The reference signs are explained as follows:

Mask 10; shell type cover 11; first sheet 111; air inlet 1111; second sheet 112; fixing hole 1121; third sheet 113; insert sheet 1131; bump 1132; through hole 1133; fourth sheet 114; fixing hole 1141; fifth sheet 115; exhaust hole 1151; first fixing hole 1152; second fixing hole 1153; jack 1154; folding line 116; notch 117; thin soft cover 12; opening 121; Secant 122; Intake valve 1221; Exhaust valve 123; Fixing hole 124; Hasp 125; Jack 126; Sheet 134 ; second fixing hole 1341 ; air outlet valve stopper 15 ; opening 151 ; fixing hole 152 ; filter piece 16 ;

Detailed ways

In order to facilitate your examiner to have a further understanding and understanding of the technical means and operation process of the utility model, hereby give an example with accompanying drawings and describe it in detail as follows.

Please refer to Fig. 1, shown in Fig. 2, a kind of intake and exhaust valve of the utility model and cover body one-piece replaceable filter piece environmental protection mask 10, include: a shell type outer cover 11, a thin soft cover body 12 , an intake valve stopper 13 and a filter 16.

Please refer to FIG. 1, the shell-type cover 11 is formed by bending a trapezoidal bendable sheet, and the bendable sheet includes a triangular first sheet 111, which has a plurality of Air inlet holes 1111 and multiple fixing holes 1112, one side of the first sheet 111 is connected with a trapezoidal second sheet 112, and the other two sides of the first sheet 111 are respectively connected with a third sheet 113, Also, the two hypotenuses of the second sheet 112 are respectively connected to a triangular fourth sheet 114, and the other side of the fourth sheet 114 is respectively connected to a fifth sheet 115, and the sheet indirectly has a The bent fold line is further folded into the shell-type cover 11 .

Please refer to Fig. 1 again, the two ends of one side of the second sheet 112 adjacent to the first sheet 111 are respectively provided with a fixing hole 1121, and one side of the second sheet 112 is connected to the fourth The sheet body 114 forms a notch 117, and the notch 117 can increase the tightness between the user's chin when wearing it; A piece 1131, a protrusion 1132 is provided between the insertion piece 1131 and the third piece 113, and a through hole 1133 is provided on the other side of the third piece 113; the fourth piece 114 is opposite The other end of the first sheet 111 and near the fifth sheet 115 are provided with a fixing hole 1141, and there is a folding line 116 between the second sheet 112; the fifth sheet 115 is close to the One end of the fourth sheet 114 is provided with a triangular exhaust hole 1151, and the three corners of the exhaust hole 1151 are respectively provided with a first fixing hole 1152, while the other end of the fourth sheet 114 There is a first fixing hole 1152 and a second fixing hole 1153, the diameter of the second fixing hole 1153 is larger than the first fixing hole 1152, and the fifth sheet 115 is provided with a The insertion hole 1154 that the insertion piece 1131 is inserted into, when the insertion piece 1131 is inserted into the insertion hole 1154, the protrusion 1132 will be exposed outside the insertion hole 1154, and the user can further select from the protrusion 1132 The insertion piece 1132 is pulled out, and the first piece 111 is lifted.

Please refer to Fig. 2, the thin soft cover 12 is a triangular three-dimensional structure, and its material can be various types of elastic body, such as silica gel, and one side has a first hole for accommodating the user's mouth and nose. Opening 121, the other side sinks inwardly on a plane that is provided with plural secant lines 122, a fixing hole 124 and plural sockets 126 to set its edge, further said secant lines 122 respectively form plural intake air intake valves 1221, and The two sides of described thin soft cover body 12 are provided with a triangular exhaust valve 123 respectively, and the terminal point of described exhaust valve 123 is respectively provided with a fixing hole 124, opposite to the other end of described exhaust valve 123 is provided with There is a fixing hole 124 and a buckle 125 protruding homogeneously with the thin soft cover 12, the buckle 125 is located close to the opening 121, and the thin soft cover 12 is another The four corners of the side are respectively provided with a plurality of fixing holes 124. During assembly, the second fixing holes 1153 of the shell type cover 11 are fixedly sleeved with the buckles 125, and the through holes 1153 pass through the buckles. 125 (see Figure 1).

Please refer to Fig. 2 again, the air inlet valve retainer 13 is an equilateral triangle, and its three sides extend upwards to form a filter seat 133, with a first fixing hole 132 in the center, opposite to the air inlet valve 1221 There are a plurality of air inlet holes 131, and the three sides of the air inlet valve stopper 13 are extended downward with a plurality of insertion pieces 134 that can be inserted into the jack 126, and each insertion piece 134 is provided with a corresponding The second fixing hole 1341 of the fixing hole 124, further the first and second fixing holes 132, 1341 can be combined with the corresponding fixing hole 124 on the thin soft cover 12 through a fixing component 18, so that the The air inlet valve stopper 13 is combined with the thin soft cover body 12 (please refer to Fig. 3); when the mouth mask 10 is combined, the air inlet valve 1221 will be opened corresponding to the air inlet hole 131 Because the area of the air inlet hole 131 is smaller than that of the air inlet valve 1221, when the wearer exhales, the air inlet valve 1221 does not open due to the blocking of the air inlet valve flap 13.

Please refer to Figures 2 and 3, when assembling, a triangular outlet valve stopper 15 is fixed on the inner side of the exhaust valve 123, and an opening 151 corresponding to the exhaust valve 123 is provided in the middle of the outlet valve stopper 15. , because the area of the opening 151 is smaller than that of the exhaust valve 123, when the user breathes, the exhaust valve 123 cannot be opened and closed inward because it is blocked, and can only be opened outward in one direction, so that the gas flows from the The exhaust valve 123 is discharged, and the three corners of the opening 151 are respectively provided with a fixing hole 152 corresponding to the fixing hole 124; then the shell type cover 11 is covered with the thin soft cover 12 And the intake valve stopper 13 uses the shell-type cover 11 to support the thin soft cover 12, and fixes the fixing components 18 on the fixing holes corresponding to each other. Components 18 may be rivets or snaps.

Please refer to Figures 2 to 4, after the assembly is completed, the side edge of the thin soft cover 12 will be higher than the triangular opening formed by the second piece 112 and the fifth piece 115 of the shell cover 11. , and then form a filter gasket, and the filter 16 is accommodated behind the filter holder 133, and the edge of the filter 16 extends with a sealing part 161 with a height of about 0.3 mm and a width of about 1 mm to cover the filter When the edge of the filter surface seat 133 is covered by the first piece 111, or when the insertion piece 1131 is inserted into the insertion hole 1154, the filter gasket and the sealing part 161 are used to seal the The filter sheet 16 is sealed and fixed in the filter seat 133, and the mouth mask 10 can replace the filter sheet 16 of different materials and apertures according to the use environment; the filter sheet 16 is made of breathable cloth and covered in The media in the breathable fabric is composed of different media for different harmful substances, such as activated carbon anti-virus filter, electrostatic fiber dust filter, anti-mite and antibacterial fiber filter or folded N95 high filter When the filter sheet 16 fails, it can be removed from the mouth mask 10 and replaced with a new filter sheet 16 to maintain the filtering function without discarding the whole mouth mask 10.

Please refer to Fig. 4 and shown in Fig. 5, the mask 10 further includes a first elastic belt body 171 and a second elastic belt body 172, which are respectively fixed on the first sheet body 111 and the first sheet body 111 by the fixing assembly 18 On the fourth sheet 114, the first and second elastic belts 171, 172 are worn on the head when in use, and the first and second elastic belts 171, 172 are pulled backward to pull the The first sheet body 111 is pressed toward the mouth mask 10 body, so that the filter sheet 16 is completely sealed in the filter sheet holder 133, and the thin soft cover body 12 itself has elasticity, and cooperates with the first sheet One, two elastic bands 171, 172 are the pressure applied when wearing the user's mouth and nose sealed in the mouth mask 10, and the edge of the thin soft cover 12 is in contact with the user's face. The close contact between the face and the face solves the shortcoming of the gap between the existing mask and the face.

Please refer to Fig. 2 and Fig. 6, in order to solve the problem of infiltration of existing filters, this case also has an intake and exhaust valve. The area of the air inlet hole 131 of the inlet valve flap 13 is smaller than that of the inlet valve 1221. When the user exhales, the inlet valve 1221 is blocked by the inlet valve flap 13 and does not open. The user keeps breathing, and the outside air also enters from the air inlet holes 1111, 131 all the time, and the exhaled gas is expelled from the exhaust valves 123 on both sides of the mask 10 to form air The flow state of one-way in and out makes the user breathe more smoothly when wearing it, and because the exhaled gas contains water vapor, under the structure of the utility model, the exhaled air is discharged from the exhaust valves 123 on both sides of the mask 10 Therefore, water vapor is not easy to contact the filter sheet 16, thereby reducing the occurrence of filter sheet infiltration, and the filter sheet 16 can maintain a good filtering function for a long time.

Please refer to Fig. 6, the replaceable filter environmental protection mask of the utility model with integrated intake and exhaust valves and cover body is composed of elastic body, which can be soft silica gel and thin plastic that can be bent, and the overall weight after assembly Small, so that the user can carry it to reduce the burden; because each person's face shape is different, in order to match various different face shapes, the utility model is designed in addition to the notch 117 to increase the thin soft cover body 12 when the user wears it. In addition to the tightness with the chin, through the folding line 116 corresponding to the curvature of the human body's mouth to the chin (see Figure 1), the space at the chin of the mask 10 is increased, and it fits the user's mouth, and then through the The first and second elastic belts 171, 172 tightly fit the user's face to the mouth and nose to achieve the function of completely isolating the mouth and nose from external pollution sources; Replacing the filter environmental protection mask, the filter 16 with different functions and the thin soft cover 12 with high adhesion can improve the range and level of use of the mask 10, and further achieve half-hedral anti-virus The function of the mask.

The design of the shell-type outer cover 11, the air inlet valve stopper 13 and the air outlet valve stopper 15 of the present invention utilizes the principle of three points forming a surface, combined with hard and soft sheet materials, combined with a fixed component 18 to form a three-dimensional replaceable Environmentally friendly masks with filters and valves; hard raw materials can be made of environmentally friendly material sheets, which are formed by stamping and cutting. Because the structure is composed of several pieces of regular triangles and trapezoids, there is almost no waste of materials in manufacturing; The soft thin soft cover body 12 is used as the main mechanism for contacting the skin, which provides more comfort and airtightness than the disposable mask, and the intake and exhaust valve mechanism is set at the same time to allow the wearer's breathing Smooth, you can avoid inhalation of your own exhaled turbid air and filter infiltration, reducing insufficient inhalation and stuffy feeling.

Furthermore, the first and second elastic bands 171, 172 can be worn in ear-hook, head-hook or three-point hang according to the wearer's demand for airtightness and comfort, so as to prolong the wearing time and improve performance.

But the above-mentioned person is only preferred embodiment of the present utility model, should not limit the scope of the present utility model implementation with this; Effect changes and modifications should still fall within the scope covered by the utility model patent.

Claims (9)

1. A replaceable filter disc environmental protection mask with integrated intake and exhaust valves and cover body, characterized in that it comprises: A shell-type cover, which has a flip-up first sheet and at least one elastic belt, wherein the first sheet has a plurality of air inlet holes, and the two sides of the shell-type cover are respectively provided with an exhaust hole , and there are two symmetrical folding lines corresponding to the corners of the mouth of the human body to the chin, and there is an arc-shaped notch corresponding to the chin of the human body, through which the folding line and the notch increase the tightness between the mask and the user ; A thin soft cover is combined in the shell-type outer cover to form a triangular structure, which is elastic in itself, and the user's body is held back by the pulling force of the elastic band worn on the user's head. The mouth and nose are sealed and covered in the mask, and one side of the thin soft cover is sunken to have a plurality of intake valves formed by a plurality of secant lines, a fixing hole is arranged in the middle, and the side There are a plurality of sockets, and further, the two sides of the thin soft cover are respectively provided with an exhaust valve corresponding to the exhaust hole, so as to discharge the gas exhaled by the user; An air inlet valve baffle, whose three sides extend upwards to form a filter seat, with a first fixing hole in the center, and a plurality of air inlet holes opposite to the air inlet valve. In addition, the air inlet valve The three sides of the baffle extend downwards and are provided with a plurality of inserts that can be inserted into the insertion holes, so as to fix the air inlet valve baffle in the thin soft cover; and A filter sheet, the three sides of one side extend with a sealing part, when the filter sheet is accommodated in the filter seat of the air inlet valve stopper, the sealing part is covered on the air inlet The baffle edge of the valve baffle is used to increase the tightness, and to further isolate different harmful substances through the filter. 2. The replaceable filter disc environmental protection mask with integrated intake and exhaust valves and cover body as claimed in claim 1, wherein the shell type cover is formed by bending a bendable sheet body, and The bendable sheet body is composed of a plurality of sheet bodies, and the sheet bodies are pivotably combined with each other. 3. The integrated replaceable filter environmental protection mask with intake and exhaust valves and cover body as claimed in claim 1, characterized in that, when the thin soft cover body is combined with the shell-type outer cover, its side will be higher. Out of the edge of the shell housing, a filter gasket is formed to seal the filter therein. 4. The integrated replaceable filter disc environmental protection mask of intake and exhaust valves and cover body as claimed in claim 2, characterized in that, the shell-type outer cover has a plurality of inserts and corresponding jacks of the inserts, After the filter sheet is put into the mask, the filter sheet can be fixed in the accommodating space of the mask through the insertion sheet and the socket. 5. The replaceable filter disc environmental protection mask with integrated intake and exhaust valves and cover body as claimed in claim 3, characterized in that, the insert piece is provided with a bump exposing the jack, through which the bump The first sheet can be opened, and the filter sheet can be taken out from the accommodating space. 6. The integrated replaceable filter disc environmental protection mask with intake and exhaust valves and cover body as claimed in claim 1, characterized in that, the exhaust valve of the thin soft cover body is combined with an air outlet valve stopper, The flap of the air outlet valve is provided with an opening, and the area of the opening is smaller than that of the exhaust valve, so as to prevent the exhaust valve from opening into the mouth mask, so that when the user breathes with the mouth mask, the exhaled gas will Exhausted from the exhaust valve. 7. The replaceable filter disc environmental protection mask with integrated intake and exhaust valves and cover body as claimed in claim 1, characterized in that, the area of the air intake hole of the intake valve flap is smaller than that of the intake valve, when used When the person exhales, the intake valve is blocked by the intake valve flap and does not open outwards. 8. As claimed in claim 1 or 6, the integrated replaceable filter disc environmental protection mask with intake and exhaust valve and cover body is characterized in that, the shell-type outer cover, thin soft cover body, and air intake valve stopper And the elastic bands respectively have a corresponding plurality of fixing holes for combination, and are combined and fixed by the plurality of fixing components. 9. The environmental protection mask with replaceable filter discs integrated with intake and exhaust valves and cover body as claimed in claim 1, characterized in that, the elastic belt body can be selected from ear hooks, head-wrapping or three-point hanging.