阅读说明：本技术 一种呼入呼出分滤式口罩的呼吸阀体结构 (Respiratory valve body structure of filter type mask for incoming and outgoing calls ) 是由 汪明智 顾炎辉 于 2020-04-28 设计创作，主要内容包括：本发明公开了一种呼入呼出分滤式口罩的呼吸阀体结构,口罩体的内侧设有呼吸阀体,呼吸阀体设有进气口、出气口和与使用者鼻孔对应的呼吸口,出气口连通有气管A；呼吸阀体内由中部向两侧的方向分别依次设有两个隔板,所述隔板将呼吸阀体内分隔成为五个腔,中间的腔为进气腔,与进气腔相邻的两个腔为过渡腔,过渡腔背向进气腔一侧的相邻腔为出气腔,进气口设于进气腔位置处,出气口设于出气腔位置处,呼吸口设于过渡腔的顶部位置处。从上述结构可知,本发明的一种呼入呼出分滤式口罩的呼吸阀体结构,呼吸阀体将鼻孔吸入的空气和呼出的气体从不同的路径进出呼吸阀体,从而使吸入的气体和呼出的气体分离至不同相互不连通的区域分别进行过滤。(The invention discloses a breathing valve body structure of an incoming and outgoing separate filtering type mask, wherein a breathing valve body is arranged on the inner side of a mask body, the breathing valve body is provided with an air inlet, an air outlet and a breathing opening corresponding to the nostril of a user, and the air outlet is communicated with an air pipe A; two baffles are sequentially arranged in the breathing valve body from the middle to two sides respectively, the baffles divide the interior of the breathing valve body into five cavities, the middle cavity is an air inlet cavity, two cavities adjacent to the air inlet cavity are transition cavities, the adjacent cavity on one side of the air inlet cavity, back to the transition cavity, is an air outlet cavity, the air inlet is arranged at the position of the air inlet cavity, the air outlet is arranged at the position of the air outlet cavity, and the breathing opening is arranged at the top of the transition cavity. According to the structure, the breathing valve body structure of the breathing and exhalation filter type mask, disclosed by the invention, can be used for enabling air inhaled from nostrils and exhaled air to enter and exit the breathing valve body from different paths, so that the inhaled air and the exhaled air are separated to different areas which are not communicated with each other and are respectively filtered.)

1. The utility model provides a respiratory valve body structure of filter formula gauze mask is divided in incoming call exhalation which characterized in that: the nasal cavity breathing valve comprises a breathing valve body (8), wherein the breathing valve body (8) is provided with an air inlet (28), an air outlet (14) and a breathing opening (13) corresponding to the nostril of a user, and the air outlet (14) is communicated with an air pipe A (7); be equipped with two baffle (12) respectively in proper order by the direction of middle part to both sides in the breather valve body (8), baffle (12) will breathe and separate into for five chambeies in the valve body (8), and middle chamber is chamber (15) of admitting air, and two chambeies adjacent with chamber (15) of admitting air are transition chamber (16), the adjacent chamber of chamber (15) one side of admitting air is chamber (17) of giving vent to anger dorsad in transition chamber (16), chamber (15) one-way intercommunication of admitting air is in transition chamber (16), transition chamber (16) one-way intercommunication is in the chamber of giving vent to anger, breather valve body (8) are located in air inlet (28) and are corresponding to chamber (15) position department of admitting air, breather valve body (8) are located in gas outlet (14) and are corresponding to chamber (17) position department of giving vent to anger, breather port (13) are located breather valve body (8) and are located in the top position department of.

2. The structure of the respiratory valve body of the filter type respirator for breathing in and out as claimed in claim 1, wherein: through holes A (18) communicated with the two sides of the partition plate are respectively formed in the partition plate (12), and valve plates (9) are respectively arranged on one side of the partition plate (12) back to the air inlet cavity (15) and at positions corresponding to the through holes A (18); when the airflow is blown to the valve plate (9) from the opposite side of the partition plate (12) provided with the valve plate (9), a gap is reserved between the valve plate (9) and the corresponding through hole A (18), and the airflow passes through the through hole A (18); when the air flow is blown to the valve plate (9) from one side of the partition plate (12) provided with the valve plate (9), the valve plate (9) and the corresponding through hole A (18) are closed.

3. The structure of the respiratory valve body of the filter type respirator for breathing in and out as claimed in claim 2, wherein: the partition plate (12) faces one side of the valve plate (9), a connecting piece (19) used for fixing the valve plate (9) is arranged at the upper position of the upper edge of the through hole A (18), and the connecting piece (19) is connected with the upper side of the valve plate (9).

4. The structure of the respiratory valve body of the filter type respirator for breathing in and out as claimed in claim 2, wherein: the valve plate (9) is made of a flexible latex sheet.

5. The structure of the respiratory valve body of the filter type respirator for breathing in and out as claimed in claim 1, wherein: the top of the breathing valve body (8) is provided with a plugging body (20) which is matched with the nostril of a user at the position corresponding to the breathing port (13).

6. The structure of the respiratory valve body of the filter type respirator for breathing in and out as claimed in claim 1, wherein: two ends of the breathing valve body (8) are respectively provided with a hanging lug device B (5), and the hanging lug devices B (5) are fixed at connecting ends (11) arranged at two sides of the breathing valve body (8).

7. The structure of the respiratory valve body of the filter type respirator for breathing in and out as claimed in claim 1, wherein: the top of the breathing valve body (8) and the front side of the breathing port (13) are provided with a positioning boss (25) matched with the nose of a user.

8. The structure of the respiratory valve body of the filter type respirator for breathing in and out as claimed in claim 1, wherein: the breather valve body (8) comprises a valve body main body and a housing (10) which are detachably fixed, and the edge of the housing (10) is fixed with the valve body main body in a sealing way through a sealing clamping strip (21).

9. The structure of the respiratory valve body of the filter type respirator for breathing in and out as claimed in claim 1, wherein: the number of the air inlets (28) is multiple, and the air inlets (28) are uniformly distributed in a row along the air inlet cavity (15); or the air inlet (28) is communicated with an air pipe B (29).

10. The structure of the respiratory valve body of the filter type respirator for breathing in and out as claimed in claim 9, wherein: when the air inlet is communicated with the air pipes B (29), the air inlet (28) is connected with the two air pipes B (29) through a three-way connecting pipe (30).

Technical Field

The invention relates to the technical field of filtering type masks, in particular to a breathing valve body structure of a filter type mask for incoming and outgoing calls.

Background

The mask is a sanitary article, generally refers to a device worn at the mouth and nose part for filtering air entering the mouth and nose so as to prevent harmful gas, smell and spray from entering and exiting the mouth and nose of a wearer, and is made of gauze, non-woven fabric, melt-blown fabric or paper and the like.

The mask has a certain filtering function on air entering the lung, and has a very good effect when being worn in respiratory infectious diseases and working in environments polluted by dust and the like.

Most gauze masks all are the air filtration formula gauze mask on the market at present, realize filtering the air that inhales in the human body through the cloth structure of gauze mask, also filter the back to external world to the gas of human body exhalation simultaneously.

The spreading of the new coronavirus epidemic situation has great influence on the social and economic lives of the whole world. In order to effectively block the transmission of viruses, the mask becomes a necessity of people during the transmission of epidemic situations except for measures such as washing hands, disinfection and the like.

Most of the masks in the market at present realize the incoming and outgoing through the air permeability of the fabric of the masks. The exhaled air close to the body temperature stays in the air cavity of the mask in a circulating mode, and exhaled moisture and microorganisms are easy to stay between the inner layer of the mask and the face in the mask, so that strong discomfort is brought to the face of people along with the change of the temperature of weather. When medical protective facial mask wore, in order to guarantee the gas tightness, the gauze mask edge was too compact with the facial laminating of people to it is heavier at people's facial indentation. Due to the sealing effect of the mask, a user wearing the mask generally feels stuffy and humid, is easy to have eczema on the face after wearing the mask for a long time, is not smooth to breathe and is uncomfortable to wear, so the user cannot take off the mask.

Disclosure of Invention

The invention aims to: the breathing valve body structure of the incoming and outgoing filter type mask overcomes the defects of the prior art, and the filter type mask formed by combining the mask body and the breathing valve body can be easily and conveniently exhaled out of the mask by a user wearing the mask, so that the breathing comfort of the mask is improved, and the exhaled gas is prevented from being residual and gathered in a cavity between the mask and the face contact surface of the user, and the user feels uncomfortable and even causes eczema; the breathing valve body can enable air inhaled from nostrils and exhaled air to enter and exit the breathing valve body from different paths, so that the exhaled air is prevented from circulating and staying in the mask; the breathing valve body and the mask body are connected through the hose, and the breathing valve body and the mask body are respectively and independently connected and fixed with users, so that the mask body and the breathing valve body can be used by users with different face shapes, and the applicability is improved; the structure of the mask body can obviously improve the filtering effect of the mask body; through the connecting position of the hose of the breathing valve body and the mask body, the filtering effect of nose breathing and the smoothness of the nose breathing can be considered; and the number of layers of the filter layers of the mask body through which the direct mouth part breathes is larger than that of the filter layers of the mask body through which the nose breathes through the breathing valve body, so that a user can be guided to be used to breathe through the breathing valve body by using the nose, and the utilization rate of the breathing valve body is improved.

The technical scheme adopted by the invention is as follows:

a respiratory valve structure of a filter type breathing mask for incoming and outgoing calls comprises a mask body, wherein two sides of the mask body are respectively provided with a hanging lug device A, the inner side of the mask body is provided with a breathing valve body which is provided with an air inlet, an air outlet and a breathing opening corresponding to the nostril of a user, the mask body sequentially comprises a plurality of layers of composite filter layers and a moisture absorption layer from outside to inside, the edge of the mask body is sealed and fixed, so that the edge positions among all the layers of the mask body are respectively sealed and fixed, the middle part of the mask body is provided with a transverse welding mark A which enables the positions of the welding marks A between the layers of the mask body to be respectively fixed in a sealing way, the gas outlet is respectively communicated with the mask body through a gas pipe A, the joint of the gas pipe A and the mask body is positioned on the same side of the welding mark A, and the connecting end of the gas pipe A and the mask body is positioned on the outer side of the moisture absorption layer. The user wearing the mask can easily and conveniently exhale the gas out of the mask, so that the exhaled gas which is close to the body temperature of the person and contains carbon dioxide, moisture, microorganisms and the like does not directly stay in the air cavity attached to the face of the person in the mask in a short-time circulating mode. The stuffy feeling and the moist feeling of the face of a person in the air cavity of the mask are greatly reduced, the mask can be kept to have good air permeability for a long time when being worn for inhaling, the probability of causing eczema is also reduced to the minimum, and the breathing comfort of the mask is enhanced.

According to a further improvement scheme of the invention, two partition plates are sequentially arranged in the breathing valve body from the middle part to the two sides respectively, the partition plates divide the interior of the breathing valve body into five cavities, the middle cavity is an air inlet cavity, the two cavities adjacent to the air inlet cavity are transition cavities, the adjacent cavity of the transition cavity, which is opposite to one side of the air inlet cavity, is an air outlet cavity, the air inlet cavity is communicated with the transition cavities in a one-way mode, the transition cavities are communicated with the air outlet cavity in a one-way mode, the air inlet is arranged at the position, corresponding to the air inlet cavity, of the breathing valve body, the air outlet is arranged at the position, corresponding to the air outlet cavity, of the breathing valve body, and the breathing port is arranged. The structure of the valve body realizes that the breathing valve body shunts the breathing gas to different air vents, and the mixing and mutual influence of the incoming and outgoing gases are avoided to the maximum extent.

According to a further improved scheme of the invention, through holes A communicated with two sides of the partition plate are respectively arranged on the partition plate, and valve plates are respectively arranged at positions corresponding to the through holes A on one side of the partition plate back to the air inlet cavity; when the airflow is blown to the valve plate from the opposite side of the partition plate provided with the valve plate, a gap is reserved between the valve plate and the corresponding through hole A, and the airflow passes through the through hole A; when the air flow is blown to the valve block from the side of the partition plate provided with the valve block, the valve block and the corresponding through hole A are closed through the specific structure of the valve block and the partition plate, and the effect of shunting the respiratory gas in the breathing valve body is achieved.

According to a further improved scheme of the invention, a connecting piece for fixing the valve plate is arranged at the upper part of the upper edge of the through hole A on one side of the partition plate facing the valve plate, and the connecting piece is connected with the upper side of the valve plate. The top of valve block is connected with the baffle, under the positive pressure or the negative pressure effect that valve block gravity effect and air current formed to can be convenient for in time opening and closing of valve block and through-hole A.

According to a further improvement of the invention, the valve plate is made of a flexible latex sheet. The valve plate of the latex sheet can further facilitate the timely opening and closing of the valve plate and the through hole A, and the sealing effect during closing can be ensured.

In a further improvement scheme of the invention, the top of the breathing valve body is provided with a plug body matched with the nostril of a user at the position corresponding to the breathing hole. Through the effect of plugging in the body for the mouth of breathing valve body can be fixed a position with the nostril, avoids the nostril not just directly communicate with the internal space of gauze mask through breathing valve body.

According to a further improved scheme of the invention, two ends of the breathing valve body are respectively provided with a hanging lug device B, and the hanging lug devices B are fixed at connecting ends arranged at two sides of the breathing valve body. Through the effect of hangers device B for the breather valve body can be effectively fixed with user's nose.

According to a further improvement scheme of the breathing valve, a positioning boss matched with the nose of a user is arranged on the top of the breathing valve body and positioned on the front side of the breathing opening. Through the effect of location boss to make the whole nose location with the user of breather valve body, and can also avoid breather valve body to lead to breather valve body in use to remove under hangers device B's effort.

According to a further improvement scheme of the invention, the breathing valve body comprises a valve body main body and a cover shell which are detachably fixed, and the edge of the cover shell is hermetically fixed with the valve body main body through a sealing clamping strip. The valve plate in the breathing valve body can be conveniently replaced under the action of the housing, and the breathing valve body can be conveniently cleaned.

In a further improvement scheme of the invention, at least one composite filter layer is arranged between the connecting end of the air pipe A and the outer side of the mask body and between the connecting end and the moisture absorption layer. The breathing mask ensures that the gas exhaled by the connecting end of the trachea A and the mask body is exhausted to the atmosphere after being filtered in the breathing process, and can prevent an infectious disease patient from infecting other people when the user of the mask body is the infectious disease patient.

According to a further improvement scheme of the invention, the composite filter layer sequentially comprises an anti-spray layer and a filter base layer along the direction from outside to inside of the mask body. Through the composite filtration of the anti-spray layer and the filter base layer, the filtering effect is ensured.

According to a further improvement of the invention, the anti-spray layer and the moisture absorption layer are made of spun-bonded non-woven fabrics, and the filter base layer is made of melt-blown fabrics.

According to a further improved scheme of the invention, a connecting interface is fixedly arranged at the connecting part of the inner side of the mask body and positioned on the air pipe A, and the connecting interface and the air pipe A are sealed. The mask body and the breathing valve body are independently produced and the connection between the air pipe A of the breathing valve body and the mask body is facilitated.

According to a further improvement of the invention, the air inlets are provided in plurality, and the air inlets are uniformly distributed in a row along the air inlet cavity. Thereby improving the air intake efficiency and further facilitating the smooth air intake of the user wearing the mask.

According to a further improvement scheme of the mask, the air inlet is connected with the mask body through an air pipe B, the connecting end of the air pipe B and the mask body is located on the outer side of the moisture absorption layer, at least one composite filter layer is arranged between the connecting end and the outer side of the mask body and between the connecting end and the moisture absorption layer, and the connecting part of the air pipe B and the mask body and the connecting part of the air pipe A and the mask body are arranged on two sides of the welding mark A. The air inlet of the breather valve body is connected with the mask body through the air pipe B, so that the breathing smooth effect of the user wearing the mask is improved, the air inlet and outlet of the breather valve body can be guaranteed to exhale and breathe in through two disconnected regions of the mask body completely, and the phenomenon that the exhaled air affects the inhaled air at the temperature angle or at the component angle of the exhaled air is avoided.

According to a further improved scheme of the invention, the air inlet is connected with two air pipes B through a three-way connecting pipe. The air inlet passes through two trachea B of tee bend connecting tube and is connected with the gauze mask body, has not only further improved the efficiency of admitting air, can disperse the regional division of admitting air that trachea B and gauze mask body junction formed moreover to not only can reduce to breathe in hard, improve the filter effect, even wherein after one side takes place to block up, one side can continue to use moreover.

According to a further improved scheme of the invention, a connecting interface is fixedly arranged at the connecting part of the inner side of the mask body and the air pipe B, and the connecting interface and the air pipe B are sealed. The mask body and the breathing valve body are independently produced and the air pipe B of the breathing valve body is connected with the mask body conveniently through the connecting interface.

In a further improvement scheme of the invention, a supporting rib is fixedly arranged in the mask body and at a position corresponding to the joint of the air pipe B and the mask body. Through the effect of supporting the rib for trachea B can expand throughout with the gauze mask physical stamina of gauze mask body coupling position department, thereby has improved the gauze mask body intensity of this position department, guarantees that the gauze mask body of this position department expands throughout, and then can increase as far as possible and filter area of contact, improve filter effect and air intake efficiency.

In a further development of the invention, the support ribs are transverse ribs. Through the effect of horizontal muscle when guaranteeing efficiency and the filter effect of admitting air, the production of the gauze mask body of being convenient for also accords with the conventional use of the gauze mask body more.

According to a further improved scheme of the invention, the air pipe A and the air pipe B are both flexible flat pipes. The flexible flat pipe makes the trachea more comfortable when contacting with the face of the user.

In a further improvement of the invention, a nose clip rod is fixedly arranged on the outer side of the mask body and positioned on the top edge. Through the effect of nose clip pole for gauze mask and different users 'face laminate more, avoid having the gap and influence the result of use of gauze mask between the gauze mask body and the user's face.

In a further improvement of the invention, a nose bridge pad is fixedly arranged at the position corresponding to the nose clamping rod on the inner side of the mask body. Through the effect of nose bridge pad, avoid the user to wear the gauze mask for a long time and lead to nose bridge position department to produce wearing and tearing.

According to a further improvement scheme of the mask, the edge of the mask body, the position at the top of the mask body and the position at the bottom of the mask body are respectively and correspondingly provided with a welding mark B and a welding mark C. Through the effect of welding trace B and welding trace C, further guarantee the sealed effect of gauze mask top and user's nose position department and gauze mask bottom and user's chin position department.

In a further improvement of the invention, the welding mark A divides the mask body into an upper area A and a lower area B. Through the effect of welding mark A, make the gauze mask body separate into two areas that do not communicate each other, realize breather valve body's the separation of admitting air and giving vent to anger in the gauze mask use of being convenient for.

The invention has the beneficial effects that:

firstly, the breathing valve body structure of the incoming and outgoing filter type mask is characterized in that the filter type mask is formed by combining the mask body and the breathing valve body, so that a user wearing the mask can easily and conveniently send air out of the mask, and on one hand, the air inhalation process plays a role in cooling the face of a person in an air cavity of the mask during breathing; on the other hand, the exhaled gas which is close to the body temperature of the human body and contains carbon dioxide, moisture, microorganisms and the like does not directly circulate and stay in the air cavity attached to the face of the human body in the mask for a short time. The stuffy feeling and the moist feeling of the face of a person in the air cavity of the mask are greatly reduced, the mask can be kept to have good air permeability for a long time when being worn for inhaling, the probability of causing eczema is also reduced to the minimum, and the breathing comfort of the mask is enhanced.

Secondly, according to the breathing valve body structure of the filter type breathing mask for incoming and outgoing air, the breathing valve body can enable air inhaled from nostrils and exhaled air to enter and exit the breathing valve body from different paths, so that the inhaled air and the exhaled air are separated to different areas which are not communicated with each other to be filtered respectively, and the inhaled air and the exhaled air are prevented from being mixed and mutually influenced in an air cavity of the breathing mask to the maximum extent.

Thirdly, according to the breathing valve body structure of the incoming and outgoing filter type mask, the breathing valve body and the mask body are connected through the hose, and the breathing valve body and the mask body are respectively and independently connected and fixed with users, so that the mask body and the breathing valve body can be used by users with different faces, and the applicability is improved.

Fourthly, according to the breathing valve body structure of the incoming and outgoing separate filtering type mask, the structure of the mask body can obviously improve the filtering effect of the mask body.

Fifthly, according to the breathing valve body structure of the incoming and outgoing split-filtration type mask, the filtering effect of nose breathing and the smoothness of the nose breathing can be considered at the same time through the connecting position of the hose of the breathing valve body and the mask body; and the number of piles of each filter layer of the mask body that the mouth part directly breathes is greater than the number of piles of each filter layer of the mask body that the nose breathes through the breather valve body, and the structure can guide the user to be used to the nose to breathe through the breather valve body and filter, thereby improving the utilization rate of the breather valve body.

Description of the drawings:

FIG. 1 is an outside perspective view of a mask body.

Fig. 2 is an inside perspective view of the mask body of example 1.

Fig. 3 is an exploded perspective view of the breather valve body.

Fig. 4 is a side perspective view of the mask body of example 1.

Fig. 5 is an enlarged schematic side sectional view of the mask body of embodiment 1 at the position of the connection interface of the trachea B and the welding mark a.

Fig. 6 is a side perspective view of the mask body of example 2.

Fig. 7 is an enlarged bottom view of the breather valve body according to embodiment 2.

The specific implementation mode is as follows: