CN214435930U

CN214435930U - Protective mask

Info

Publication number: CN214435930U
Application number: CN202022643139.1U
Authority: CN
Inventors: 孟天宇; 程磊
Original assignee: Tianjin Zhengtian Medical Instrument Co Ltd
Current assignee: Tianjin Zhengtian Medical Instrument Co Ltd
Priority date: 2020-11-16
Filing date: 2020-11-16
Publication date: 2021-10-22
Anticipated expiration: 2030-11-16

Abstract

The utility model provides a protective mask, which comprises a mask body, a sealing ring and a filtering device. The mask body is made of transparent material and covers the mouth and nose of a user; the sealing ring is arranged on the contour edge of the mask body and is in direct contact with the face of a user; filter equipment avoids user's oronasal position to arrange in the both sides of gauze mask body, filter equipment includes filter core and filter core fixing device, filter core detachably installs on the filter core fixing device. The mask body of the utility model adopts a transparent structure, which does not affect the face recognition; the sealing ring improves the comfort level while improving the tightness of the mask; the filter element fixing device can be matched with one to three layers of filter elements, so that the adaptability problem under different pathogen environments is met.

Description

Protective mask

Technical Field

The utility model belongs to the technical field of medical instrument, especially, relate to a protective facial mask.

Background

Research shows that the mask worn effectively has an important effect on slowing down the spread of new crown epidemic situations. Disposable surgical masks have a short life resulting in a large amount of discarded masks being produced daily. The disposable surgical mask is made of chemical fabrics, is slowly degraded and pollutes the environment, and if the waste mask is infected with bacteria and viruses, cross infection is likely to be caused, thus threatening the health and safety of cleaning personnel.

Moreover, the disposable surgical mask sold on the market is mostly made of blue-white opaque materials, under the condition that certain faces are required to be exposed, such as high-speed rail security inspection, face brushing payment and other scenes, verification is performed after the mask is removed, most personnel in the places are dense, infection risks and queuing waiting time are increased, time and labor are wasted, and epidemic situation prevention and control are not facilitated.

The design of common disposable surgery gauze mask both sides fold, although help the extension and the moulding of gauze mask, fold department and the facial gap that often forms of user for the whole seal of gauze mask is poor, and the protectiveness is low, and after some outside air did not just get into the human body through the filtration, greatly increased the infection risk during the epidemic situation.

Therefore, there is a need for a mask with strong sealing property, difficult falling off, wide application range and transparent material.

SUMMERY OF THE UTILITY MODEL

The to-be-solved problem of the utility model is to provide a protective facial mask, transparent material, the face identification of being convenient for, the leakproofness is good, and protection level is high, circulated use, and the filtration level is adjustable.

In order to solve the technical problem, the utility model discloses a technical scheme is:

a protective mask comprising:

the mask body is made of transparent materials and covers the mouth and the nose of a user;

the sealing ring is arranged on the contour edge of the mask body and is in direct contact with the face of a user;

filter equipment, it avoids user's oronasal position to arrange in the both sides of gauze mask body, filter equipment includes filter core and filter core fixing device, filter core detachably installs on the filter core fixing device.

As a preferred embodiment of the above protective mask, the filter element fixing device includes at least two layers of fixing frames, and two adjacent fixing frames can fix the filter element therebetween.

As a preferred scheme of the protective mask, one side of the adjacent fixing frames is connected with each other through a hinge, and the other side of the adjacent fixing frames is clamped with each other.

As a preferred scheme of the protective mask, the filter element is melt-blown cloth.

As a preferred embodiment of the protective mask, the fixing frame on the uppermost layer of the filter element fixing device is a plate-shaped structure with a flange at the edge, and a plurality of air holes are formed in the middle of the fixing frame.

As an optimal scheme of above-mentioned protective facial mask, the fixed frame of filter core fixing device lower floor is hollow frame construction, the fixed frame of lower floor is provided with the card protrudingly, and can with gauze mask body joint.

As an optimal solution of the above protective mask, the filter element fixing device is provided with two opposite surfaces in two adjacent layers of fixing frames, one surface of the two opposite surfaces is provided with a platform for placing the edge of the filter element, the other surface of the two opposite surfaces is provided with a flange, and the flange can press the edge of the filter element on the platform.

As an optimal selection scheme of the protective mask, the sealing ring is made of silica gel, and the sealing ring is prevented from directly contacting the mask body with the facial skin of a user.

As a preferable scheme of the protective mask, the mask body is made of a plastic material.

As a preferable scheme of the protective mask, the edge of the mask body is further provided with a connecting ring connected with the binding band.

The utility model has the advantages and positive effects that:

1. the utility model discloses the gauze mask body is transparent structure, does not influence the brush face, does not influence social contact, does not influence face identification, avoids the user to pluck at crowd intensive department and wears the gauze mask, and protection level is high.

2. The utility model discloses an it sets up the round sealing washer to contact the terminal profile edge of contact end at gauze mask body and user's facial skin, and the sealing washer is the silica gel material, improves the comfort level when promoting gauze mask body gas tightness.

3. The utility model discloses a filter equipment is small and exquisite, and filter core fixing device can arrange one to the three-layer melt-blown coating, and the demand problem of different protection grades under the different pathogen environment is satisfied in the nimble regulation of multilayer filter core, and the range of application is wide.

Drawings

Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.

Fig. 2 is a front view of the overall structure of the embodiment of the present invention.

Fig. 3 is a schematic diagram of a closed state of the filtering device according to the embodiment of the present invention.

Fig. 4 is a schematic view of an open state of the filtering apparatus according to the embodiment of the present invention.

Fig. 5 is a side view of the filter device according to the embodiment of the present invention in an opened state.

Fig. 6 is a rear view of the filter device according to the embodiment of the present invention in an opened state.

In the figure:

1. a mask body;

2. a filter element fixing device;

21. a first fixed frame; 211. clamping convex; 212. a first bushing; 213. a first card slot; 22. a second fixed frame; 221. a second shaft sleeve; 222. a third shaft sleeve; 223. a first hook; 224. a second card slot; 23. a third fixed frame; 231. air holes are formed; 232. a fourth shaft sleeve; 233. a second hook; 24. a first connecting shaft; 25. a second connecting shaft; 26. a first opening and closing opening; 27. a second opening and closing opening; 28. a flange; 29. a platform;

3. and (7) connecting rings.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The embodiments of the present invention will be further described with reference to the accompanying drawings:

as shown in fig. 1, the present embodiment provides a protective mask including a mask body 1, a packing, and a filter. The mask body 1 is made of transparent plastic, and other transparent materials can be selected. The mask body 1 covers the mouth and nose of a user. The transparent mask body 1 can be used conveniently in situations such as face brushing and the like, and the mask does not need to be taken off. During conversation, the expression of the opposite side can be seen when the transparent mask is worn, and the face-to-face communication and other conditions are facilitated. The mask body 1 is designed to be made of transparent plastic, is firm and deformation-resistant, and is convenient to disinfect and clean, so that the mask can be repeatedly used for a long time, the generation of wastes is effectively reduced, and the mask is energy-saving and environment-friendly. The gauze mask body 1 of plastics material supports 3D and prints, and production speed is fast, can produce different models, and the demand of all-round different crowds of satisfying is fit for popularizing and applying.

The mask body 1 comprises four corners, connecting rings 3 are arranged at the four corners, and the bandage is connected through the connecting rings 3. The sealing ring is arranged on the contour edge of the mask body 1 and is in direct contact with the face of a user. The sealing washer adopts the silica gel material to make, improves the comfort level when promoting 1 leakproofness of gauze mask body.

As shown in figure 2, the filtering device avoids the mouth and nose of the user and is arranged on the two sides of the mask body 1, so that the mouth and nose of the human face can not be covered, and the face brushing and face-to-face conversation are facilitated. The filter device comprises a filter element and a filter element fixing device 2, wherein the filter element is detachably arranged on the filter element fixing device 2. During the use, gauze mask body 1 covers in user's mouth nose department, and the gas that the user expired and inhaled filters through filter equipment.

In this embodiment, the area of filter core is less, need not to cover the mouth nose to protective mask can change the filter core many times, avoids extravagant, reduces use cost.

The filter element fixing device 2 comprises at least two layers of fixing frames, and a filter element can be fixed between two adjacent fixing frames. One side of the adjacent fixing frames is connected with each other through a hinge, and the other sides of the adjacent fixing frames are clamped with each other, so that the filter element is clamped. The filter core in this embodiment is the melt-blown fabric, can guarantee good filter effect.

The filter element fixing device 2 can be matched with one or more layers of filter elements, and because the filter element fixing device 2 can not cover the mouth and the nose, the filter element fixing device 2 is small in size, convenient to disinfect and capable of being replaced regularly, and the risk that the waste filter element fixing device 2 infects a human body is reduced. The multi-layer filter element is flexibly adjusted, the requirement problem of different protection grades under different pathogen environments is met, and the application range is wide.

As shown in fig. 3 to 6, the uppermost fixing frame of the filter cartridge fixing device 2 has a plate-shaped structure with a flange 28 at an edge thereof, and a plurality of ventilation holes 231 are formed at a middle portion of the fixing frame. The fixed frame of filter core fixing device 2 lower floor is hollow frame construction, and the fixed frame of lower floor is provided with the protruding 211 of card to can with 1 joint of gauze mask body. The filter element fixing device 2 is provided with two opposite surfaces of two adjacent fixing frames for clamping the filter element, one surface is provided with a platform 29 for placing the edge of the filter element, and the other surface is provided with a flange 28, and the flange 28 can press the edge of the filter element on the platform 29.

The filter element fixing device 2 in the filter device provided by the embodiment comprises a three-layer fixing frame, and can fix two layers of melt-blown cloth. The filter cartridge fixing device 2 of the present embodiment includes a first fixing frame 21, a second fixing frame 22, and a third fixing frame 23, wherein the first fixing frame 21 is a lowermost fixing frame and is engaged with the mask body 1, the third fixing frame 23 is an uppermost fixing frame, and the second fixing frame 22 is located between the first fixing frame 21 and the third fixing frame 23. Wherein the downside of first fixed frame 21 is provided with the protruding 211 of card, and what correspond is provided with the draw-in groove on gauze mask body 1, and first fixed frame 21 is fixed on gauze mask body 1 through the joint of the protruding 211 of card and draw-in groove, and first fixed frame 21 can break away from the draw-in groove and pull down from gauze mask body 1 through the protruding 211 of card to can realize that whole filter core fixing device 2 changes. Protruding 211 of card is a plurality of, and a plurality of protruding 211 interval distribution of card are at first fixed frame 21 bottom surface, and fixed firmness is strong, and is sealed effectual.

The lower side of the third fixing frame 23 is a plate-shaped structure having a flange 28 at an edge thereof, a plurality of ventilation holes 231 are formed at the middle of the fixing frame, and the flange 28 is disposed toward the second fixing frame 22. The third fixing frame 23 is provided with the air holes 231, so that the user can breathe smoothly, the filter element is prevented from being exposed outside directly, the possibility that the hand of the user directly touches the filter element is reduced, and the filter is clean and sanitary.

The second fixed frame 22 is of a frame structure, the middle part of the second fixed frame is of a hollow structure, a platform 29 is arranged on the upper surface of the second fixed frame 22, the platform 29 is used for placing the edge of the filter element, a circle of flange 28 is arranged on the lower surface of the second fixed frame 22, and the flange 28 can press the edge of the filter element on the platform 29 on the upper side of the first fixed frame 21.

The fixed frames of each layer are hinged to each other, the hinge connection mode can be realized through various structures, specifically, as shown in fig. 6, one end of the top surface of the first fixed frame 21 provided by the embodiment is provided with a first shaft sleeve 212, one end of the bottom surface of the second fixed frame 22 is provided with a second shaft sleeve 221, when the first fixed frame 21 is aligned with the second fixed frame 22, the first shaft sleeve 212 and the second shaft sleeve 221 are coaxially distributed, and the first connecting shaft 24 penetrates through the first shaft sleeve 212 and the second shaft sleeve 221, so that the first fixed frame 21 is hinged to the second fixed frame 22. The third shaft sleeve 222 is arranged at one end of the top surface of the second fixing frame 22, the fourth shaft sleeve 232 is arranged at one end of the bottom surface of the third fixing frame 23, when the second fixing frame 22 is aligned with the third fixing frame 23, the third shaft sleeve 222 and the fourth shaft sleeve 232 are coaxially distributed, and the second connecting shaft 25 penetrates through the third shaft sleeve 222 and the fourth shaft sleeve 232, so that the second fixing frame 22 is hinged to the third fixing frame 23.

As shown in fig. 5 and 6, the first connecting shaft 24 and the second connecting shaft 25 are located on the same side, a first opening/closing opening 26 is formed between the first fixed frame 21 and the second fixed frame 22, a second opening/closing opening 27 is formed between the second fixed frame 22 and the third fixed frame 23, and the first opening/closing opening 26 and the second opening/closing opening 27 are located on the same side. When the first fixing frame 21 is connected with the mask body 1 and the mask is placed as shown in fig. 2, the first connecting shaft 24 and the second connecting shaft 25 are both arranged above the filtering device, the first opening and closing port 26 and the second opening and closing port 27 are both downward, the gas exhaled by the user is discharged downward, and the transmission of droplets when a plurality of users face each other is effectively reduced.

One side of each adjacent fixed frame is hinged to realize mutual overturning among the fixed frames of each layer, and the other side of each adjacent fixed frame is clamped or separated. Specifically, as shown in fig. 3-5, the top surface of the first fixing frame 21 of the present embodiment is provided with a first engaging groove 213, the first engaging groove 213 is disposed opposite to the first shaft sleeve 212, the bottom surface of the second fixing frame 22 is provided with a first engaging hook 223, the first engaging hook 223 is disposed opposite to the second shaft sleeve 221, and the first engaging hook 223 is matched with the first engaging groove 213 to open and close the first opening/closing opening 26. The second locking groove 224 is formed in the top surface of the second fixing frame 22, the second locking groove 224 is arranged opposite to the third shaft sleeve 222, the second hook 233 is arranged on the bottom surface of the third fixing frame 23, the second hook 233 is arranged opposite to the fourth shaft sleeve 232, and the second hook 233 is matched with the second locking groove 224 to open and close the second opening and closing opening 27.

The utility model discloses a theory of operation is:

the mask body 1 is fixed at the mouth and nose of a user through the bandage, so that the filtering devices on the two sides are kept away from the mouth and nose of the user. The strap may be of a variety of configurations, so long as the above-described functions are achieved. Two ends of the same bandage can be respectively connected with an upper connecting ring and a lower connecting ring 3 at the same side, and the two bandages are respectively hung on two ears of a user to realize the fixation of the mask body 1; two go-between 3 in the upper end or the lower extreme of gauze mask body 1 also can be connected respectively with the both ends of root bandage, fix two bandages after the user brain around the head respectively, realize that gauze mask body 1 is fixed, the bandage can be the elasticity material, also can connect through adjusting device, and the no longer repeated description here.

The user wears gauze mask body 1, and is fixed through sealing washer and user face seal, and gauze mask body 1 is transparent material, can not cause user's mouth nose to shelter from, does not influence user's facial discernment, does not influence user's social contact.

When the pathogen environment protection level is higher, a user fixes the filter element between the first fixing frame 21 and the second fixing frame 22 and between the second fixing frame 22 and the third fixing frame 23, as shown in fig. 3, two layers of filter elements are adopted at the moment, the protection level is high, and the breathing resistance is higher.

When the pathogen environment protection level is lower, the user only fixes a layer of filter element in the filter element fixing device 2, and at the moment, the protection level is lower and the respiratory resistance is lower by adopting a layer of filter element.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A protective mask is characterized in that: the method comprises the following steps:

2. The protective mask according to claim 1, characterized in that: the filter element fixing device comprises at least two layers of fixing frames, and the filter element fixing device is adjacent to the fixing frames and can fix the filter element.

3. The protective mask according to claim 2, characterized in that: and adjacent to each other, one side of the fixing frame is connected with each other through a hinge, and the other side of the fixing frame is clamped with each other.

4. The protective mask according to any one of claims 1 to 3, characterized in that: the filter element is melt-blown cloth.

5. The protective mask according to claim 1, characterized in that: the fixed frame of the uppermost layer of the filter element fixing device is of a plate-shaped structure with flanges at the edges, and a plurality of air holes are formed in the middle of the fixed frame.

6. The protective mask according to claim 5, characterized in that: the fixed frame of filter core fixing device lower floor is hollow frame construction, the fixed frame of lower floor is provided with the card protrudingly, and can with gauze mask body joint.

7. The protective mask according to claim 6, characterized in that: centre gripping among the filter core fixing device relative two surfaces in the adjacent two-layer fixed frame of filter core, one surface is provided with and is used for placing the platform at filter core edge, another is provided with the flange on the surface, the flange can with the filter core edge press in on the platform.

8. The protective mask according to claim 1, characterized in that: the sealing washer is the silica gel material, the sealing washer is avoided gauze mask body and the facial skin direct contact of user.

9. The protective mask according to claim 1, characterized in that: the mask body is made of plastic materials.

10. The protective mask according to claim 1, characterized in that: the edge of the mask body is also provided with a connecting ring connected with the bandage.