CN212139465U

CN212139465U - Novel mask

Info

Publication number: CN212139465U
Application number: CN202020538033.2U
Authority: CN
Inventors: 胡浡
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-13
Filing date: 2020-04-13
Publication date: 2020-12-15
Anticipated expiration: 2030-04-13
Also published as: WO2021208907A1

Abstract

The utility model relates to a protection apparatus, concretely relates to improve filter effect and damp-proofing novel gauze mask. The filter core be the bag form filter core, from left to right fall into "breathe exhale" three filter bag, place at this internal, this internal breathing pipe, exhale pipe and the nose cover medial part of installing of gauze mask, the one end of breathing pipe links to each other with nose cover medial part, the other end links to each other with the filter core of breathing in, the one end of exhaling the pipe links to each other with nose cover medial part, the other end links to each other with the filter core of exhaling, the department lateral part of nose cover exposes this inlayer of gauze mask, all install the check valve in breathing pipe and the exha. The novel mask of the utility model, when breathing in, the external air enters the human body through the outer layer, the breathing filter element, the breathing pipe and the nose sleeve; during expiration, the air is discharged through nose sleeve, expiration pipe, filter core skin, can reduce the air and get into from the place of close skin layer with the laminating of face on the one hand, has improved the filter effect, and on the other hand has reduced the moisture and the pollution that the filter core caused for the aqueous vapor of expiration.

Description

Novel mask

Technical Field

The utility model relates to a protective tool, concretely relates to improve the filter effect, can be with breathing in and exhale separately filterable novel gauze mask.

Background

Common masks include common civil warm-keeping masks and medical masks. The common civil warm mask has the advantages of beautiful appearance and warm keeping, and the defect of no virus prevention capability of the medical mask. The medical mask has the advantages of being capable of preventing viruses, and having the defects that the appearance is not attractive as a common civil mask, the heat retention is poor, in addition, because the protection grades of the medical mask are different, the low-grade mask is not tightly attached to the face, the filtering effect is influenced, the high-grade mask is good in filtering effect, but the mask is tightly attached to the face, suffocation and facial indentation can be caused, and the common civil mask has the heat retention property and is not suitable for being worn in hot summer. The medical mask inhales and exhales through the filter element, and the filter element is soaked by the exhaled water, so that the filtering effect can be damaged, and the filter element replacement time is shortened.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides an improve filter effect and dampproofing novel gauze mask.

The utility model provides a scheme that above-mentioned problem was taken is: the common mask is processed into a bag-shaped structure capable of being placed into a filter element, the filter element is a bag-shaped structure formed by two pieces of medical filter paper in a sealing fit mode around the filter element, two air suction holes are added at appropriate positions on one side of the bag-shaped filter element and are connected with an air suction pipe, and the other end of the air suction pipe extends into a nasal cavity to breathe.

Further, for implementing better the utility model discloses, for preventing bag form filter core because of breathing in and cause the two sides to hug closely together, influence the filter effect, increase the thin sponge of one deck in bag form filter core, be that whole bag form filter core can both play filtered air's effect.

Furthermore, in order to better implement the utility model, a one-way valve is additionally arranged on the air suction pipe connected with the breathing hole of the bag-shaped filter element, the one-way valve is opened during air suction, and the one-way valve is closed during air expiration; two expiration pipes are added, and one end of each expiration pipe and one end of each inspiration pipe, which is not connected with the inspiration hole of the bag-shaped filter element, are connected with the nasal cavity through the same path; the expiratory tube is also provided with a one-way valve, the one-way valve is closed during inspiration, and the one-way valve is opened during expiration; the air containing moisture exhaled from the human body during exhalation is effectively prevented from polluting the inner side of the bag-shaped filter element and breeding bacteria through the bag-shaped filter element, so that the bag-shaped filter element can be kept dry for a long time, the filtering effect is improved, and the service life of the filter element is prolonged.

Furthermore, in order to better implement the utility model, two sealing lines are vertically processed on the bag-shaped filter element to form a bag-shaped structure with two narrow sides and a wide middle part which are not communicated with each other, the ratio is 1:2:1, the middle part is an air suction filter bag, the two sides are exhalation filter bags, the structures of the air suction filter bags are the same as the structures of the air suction filter bags, an exhalation hole is additionally arranged at a proper position of the exhalation filter bag and is connected with one end of an exhalation pipe which is communicated with the atmosphere, so that the gas exhaled from a human body is exhausted to the atmosphere through the exhalation filter bag, and the infectious virus can be prevented from being exhausted out of the body, the environment.

Further, for implementing better the utility model discloses, the exhale of bag form filter core crosses the filter bag because filterable is the gas of exhalation, crosses the filter bag and can not take place the phenomenon that the two sides were hugged closely together, so need not install thin sponge additional in the exhale filter bag, in order to prevent to wear for a long time, the steam of exhalation causes soaks, makes gauze mask close skin one side produce uncomfortable and feels, can cross the damp-proof effect of design of bag close skin one side at the exhale, increases the comfort level of wearing for a long time.

Furthermore, in order to better implement the utility model, the respiratory tube stretches into the nasal cavity to breathe, and the soft nose plug head can be adopted to stretch into the mouth of the nasal cavity, so that the wearing method can cause uncomfortable feeling, and the soft rubber type nose plug body can be designed. The soft rubber type nasal plug body is divided into two parts, the inner side part is embedded into the outer side of the mask and connected with the air suction pipe and the air expiration pipe of the bag-shaped filter element, and the outer side part is exposed out of the mask outer cover. The outer side part is soft, is manufactured according to the outline of the nose end, can wrap the nose end, the breathing hole is slightly protruded in the nose plug body, and slightly extends into the nostril of a human body when being worn, and the soft rubber type nose plug body has the advantages of light weight, sealing comfort and beautiful swelling effect on the mask.

Further, for implementing better the utility model discloses, the check valve is the utility model discloses make breathe in and exhale separately to carry out filterable important component part, can adopt three kinds of modes, be movable cover formula, soft inclined diaphragm formula and three kinds of schemes of spring valve formula respectively.

Further, for implementing better the utility model discloses, the breathing pipe and the exhaling pipe of connecting bag form filter core and nose plug body except for the function in order to realize the check valve, flat pipe can be made into to all the other parts to comfort level and pleasing to the eye when improving the gauze mask and wearing. The widening of the flat pipe can also increase the air passing amount, and the air holding phenomenon caused by the filtering function is relieved.

Further, for implementing better the utility model discloses, in order to let the gauze mask can wear in hot season, hang in the cheek both sides with the gauze mask that nose bridge frame and gauze mask rope will be equipped with bag form filter core, the respiratory tube stretches into the nasal cavity and breathes.

The beneficial effects of the utility model are embodied in: the novel mask of the utility model, through the matching of the nose sleeve, the nose plug pipe, the air suction pipe, the air expiration pipe and the like, external air enters the human body through the bacteria inhibiting layer, the filter element, the air suction pipe and the nose plug pipe during air suction; during expiration, the air is discharged through nasal obstruction pipe, expiration pipe, can reduce the air and get into from the local of close skin layer with facial laminating on the one hand, has improved the filter effect, and on the other hand has reduced the humidity that vapor directly caused between close skin layer and face, has improved the comfort level, has improved the medical effect of filter core, has prolonged the change time of filter core.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural view of the novel mask of the present invention;

fig. 2 is a schematic structural view of the inner layer of the novel mask of the present invention;

fig. 3 is a schematic structural view of the novel mask of the present invention when the inner layer is opened;

fig. 4 is a schematic structural view of the outer layer of the novel mask of the present invention;

fig. 5 is a schematic structural view of the nasal obstruction air guide device of the novel mask of the present invention;

fig. 6 is a schematic structural view of the novel mask when the movable cover type check valve is closed;

fig. 7 is a schematic structural view of the novel mask with the movable cover type check valve opened;

fig. 8 is another schematic structural diagram of the soft inclined-film check valve of the novel mask of the present invention when closed;

fig. 9 is another schematic structural view of the novel mask of the present invention when the soft inclined-film check valve is opened;

fig. 10 is a schematic structural view of the spring valve type check valve of the novel mask of the present invention when closed;

fig. 11 is a schematic structural view of the novel mask of the present invention when the spring valve type check valve is opened;

fig. 12 is a schematic structural view of the one-way valve of the novel mask of the present invention during inhalation;

fig. 13 is a schematic structural view of the one-way valve of the novel mask of the present invention during exhalation;

fig. 14 is a schematic structural view of a lower cover of a spring valve type check valve of the novel mask of the present invention;

fig. 15 is a schematic structural view of an upper cover of a spring valve type check valve of the novel mask of the present invention;

fig. 16 is a schematic structural view of the nasal obstruction device of the novel mask of the present invention;

fig. 17 is a schematic structural view of the novel mask in summer;

fig. 18 is a schematic structural view of a summer filter element of the novel mask of the present invention;

fig. 19 is a schematic structural view of the air guide of the novel mask of the present invention;

fig. 20 is a schematic structural view of a breathing tube of the novel mask of the present invention;

fig. 21 is a schematic structural view of a filter element of the novel mask of the present invention;

fig. 22 is a schematic structural view of a filter element of the novel mask of the present invention;

fig. 23 is a schematic structural view of a filter element of the novel mask of the present invention;

in the figure, 1-outer layer, 2-filter core, 3-inner layer, 4-seam, 5-nasal sleeve, 6-nasal plug tube, 7-inhalation tube, 8-exhalation tube, 9-inhalation tube connector, 10-exhalation tube connector, 11-mask belt, 12-movable cover, 14-spring valve lower cover, 15-spring valve upper cover, 16-spring, 17-convex block, 18-hollow hole, 21-soft inclined membrane, 22-breath port, 23-upper cloth, 24-lower cloth, 26-inhalation connecting tube, 27-exhalation connecting tube, 28-nasal bridge frame, 30-air guide piece and 31-breath tube.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

The utility model discloses a novel mask structurally divide into simple type, add valve type and complexity from simple to the complicacy, divide into ordinary money and summer money in the style.

Example 1:

as shown in figures 1 to 23, the novel mask of the utility model comprises a mask body, a filter element 2 and a mask belt 11, wherein the mask body comprises an outer layer 1 and an inner layer 3, the inner layer 1 and the outer layer 3 are connected to form a bag type structure, the mask belt 11 is connected to the mask body, the filter element 2 is of a bag type structure and is divided into three filter bags of breathing and breathing from left to right, the filter element 2 is arranged in the mask body, an air suction pipe 7, an air exhaust pipe 8 and the inner side part of a nose sleeve 5 are arranged in the mask body, one end of the air suction pipe 7 is connected with the inner side part of the nose sleeve 5, the other end of the air suction pipe is connected with the air suction filter bag of the filter element 2, one end of the air exhaust pipe 8 is connected with the inner side part of the nose sleeve 5, the other end of the air exhaust pipe is connected with the filter bag of the filter element 2, the outer, and one-way valves are arranged in the inhalation pipe 7 and the exhalation pipe 8. The novel mask of the utility model, through the matching of the nose sleeve 5, the breathing tube 7 and the expiration tube 8, the external air enters the human body through the outer layer 1, the filter element 2, the breathing filter bag, the breathing tube 7 and the nose sleeve 5 during the breathing; during expiration, the air is through nose cover 5, exhale pipe 8, filter core 2 exhale and filter the bag, outer 1 discharges, can reduce the air and get into from the place of close skin layer with facial laminating on the one hand, the filter effect has been improved, on the other hand has reduced the moisture that the aqueous vapor of exhalation directly caused between close skin layer and face, the comfort level has been improved, the effectual moist and the pollution of avoiding exhaled aqueous vapor to cause for the filter core, the medical effect of filter core has been improved, the change time of filter core has been prolonged.

The utility model is a simple type, as shown in fig. 1-3, the manufacturing material is the same as that of the common civil mask, usually cotton cloth, the outer layer 1 and the inner layer 3 form a bag-shaped structure, the inner layer is a skin-friendly layer and consists of an upper piece of cloth 23 and a lower piece of cloth 24, the middle junction can be slightly overlapped, the upper piece of cloth 23 and the lower piece of cloth 24 can be lifted up and down, and the bag-shaped filter element 2 can be put in and replaced; the upper sheet cloth 23 and the lower sheet cloth 24 may be repeatedly torn and bonded by felt.

The bag-shaped filter element 2 is a bag-shaped structure formed by two pieces of medical filter paper with the front and the back sides being closely sealed as shown in figures 21-23, and the back side is corresponding to the inner layer 3 of the bag-shaped outer cover and is arranged in the bag-shaped outer cover. Two air suction connecting ports 9 are formed in proper positions on the back face, the air guide piece 30 is additionally arranged in a matched mode, the air suction connecting ports 9 are arranged at corresponding positions between the nose bridge and two eyes, the air guide piece 30 is arranged at the corresponding positions, the top face which is in contact with a human body can be manufactured into a curved face while the air guide function is achieved, and the medical mask nose clip can also achieve the effect of a medical mask nose clip when the mask is worn. When the mouth is used for breathing, the mask can also play a role in protecting the medical mask. The bottom of the air guide piece 30 is closely connected with the air suction connecting port 9 and belongs to a part of the bag-shaped filter element 2.

As shown in fig. 20, one end of the breathing tube 31 is connected to the round mouth on the air guide 30 of the bag-shaped filter element, and the other end of the breathing tube 31 is exposed from the slightly overlapped part of the border between the upper cloth 23 and the lower cloth 24 on the back of the bag-shaped outer cover and can extend into the nasal cavity of the human body for breathing.

Example 2: valve type embodiment

The valve-added rhinobyon type filtering mask consists of a bag-shaped outer cover, a filter element 2, a one-way valve, a nasal obstruction device, an air suction pipe 7 and an air expiration pipe 8. The bag-shaped outer cover and the bag-shaped filter element 2 are the same as the simple type in the embodiment 1.

The check valve is realized by three ways:

as shown in fig. 6 and 7, when air comes from above, the movable cover 12 is closed under the action of the air flow, and the air flow cannot pass through, when air comes from below, the movable cover 12 is opened under the action of the air flow, and the air flow can prevent the movable cover 12 from being opened excessively under the action of the convex block on the movable cover 12, and when air comes from above, the movable cover 12 cannot be closed, so that the action of the check valve cannot be completed.

As shown in fig. 8 and 9, in the soft inclined membrane type check valve, when air comes from the upper part, the soft inclined membrane 21 is pressed by the air flow, the end which is not fixed with the tube wall is compacted to block the air flow from passing through, and when air comes from the lower part, the end which is not fixed with the tube wall of the soft inclined membrane 21 is flushed away by the air flow, and the air flow passes through.

As shown in fig. 10, 11, 14 and 15, the spring valve type check valve, the upper spring valve cover 14 and the lower spring valve cover 15 are combined together to prevent the air flow from passing through, and the air flow passes through the through holes 18 of the two covers when the two covers are separated. The round edges of the two covers are solid, the lower cover 15 of the spring valve is fixed on the pipe wall, the upper cover 14 of the spring valve is combined with the lower cover by the force of the spring 16 to close the air passage, the spring 16 is a weak force spring which is weaker than the breathing force of a human body, and the function of the one-way valve is realized by the mutual matching of the breathing force of the human body and the weak force spring.

The on-off of the air path of the one-way valve is shown in fig. 12 and 13, the air inlet and outlet switch of the one-way valve is schematic in breathing, and the function of separating the inhalation path from the exhalation path can be realized through the four one-way valves. When inhaling, the one-way valve of the inspiration tube 7 is opened by the force of the intake airflow, and the one-way valve of the expiration tube 8 is closed. When the patient exhales, the one-way valve of the inhalation tube 7 is closed by the force of the exhaled air flow, the one-way valve of the exhalation tube 8 is opened, and the exhaled air is exhausted from both sides.

As shown in fig. 16, the inhalation tube 7 of the nasal obstruction device is connected with the inhalation connecting tube 26, the other end of the inhalation connecting tube 26 is connected with the air guide piece 30 on the inhalation tube connecting port 9, the exhalation tube 8 of the nasal obstruction device is connected with the exhalation connecting tube 27, and the other end of the exhalation connecting tube 27 is abutted against two corners between the front surface and the back surface of the bag-shaped housing and is communicated with the atmosphere. The air suction connecting pipe 26 and the air exhalation connecting pipe 27 are provided with one-way valves, and the nasal obstruction device is exposed from the slightly overlapped part of the middle junction of the upper piece of cloth 23 and the lower piece of cloth 24 on the back surface of the bag-shaped outer cover and can extend into the nasal cavity of a human body for breathing.

Example 3: detailed description of the preferred embodiments

The novel complicated rhinobyon type filtering mask consists of a bag-shaped outer cover, three filter elements, a one-way valve, a soft rubber rhinobyon body, an air suction pipe and an air expiration pipe.

The bag-shaped outer cover is the same as the simple type in the embodiment 1, and the one-way valve is the same as the valve adding type in the embodiment 2.

As shown in fig. 21, the three-bag filter element is a bag-shaped structure which divides the filter element into three different bag-shaped structures at the sealing line, and the ratio is 1:2:1, the middle is provided with an inspiration filter bag, the two sides are provided with expiration filter bags, and an expiration connecting port 10 is arranged below the expiration filter bags. A layer of thin sponge is additionally arranged in the inspiration filter bag, and the face, with the expiration connector 10, of the expiration filter bag can be subjected to moisture-proof treatment, so that the exhaled water vapor is prevented from being soaked.

The nasal obstruction cavity is shown in fig. 16, the whole nose end of a human body can be plugged into the nose sleeve 5 of the soft nasal obstruction body, and the nasal obstruction tube 6 can slightly extend into the nostril of the human body for breathing. The air suction pipe 7 is connected with an air suction connecting pipe 26, the other end of the air suction connecting pipe 26 is connected with an air guide piece 30 on the three-bag filter element air suction connecting port 9, the expiration pipe 8 is connected with an expiration connecting pipe 27, and the other end of the expiration connecting pipe 27 is connected with the air guide piece 30 on the expiration connecting port 10 of the three-bag filter element. Check valves are installed on the inhalation connection tube 26 and the exhalation connection tube 27. The part of the nasal obstruction cavity wrapping the nose end of the human body is exposed from the slightly overlapped part of the middle border of the upper piece of cloth 23 and the lower piece of cloth 24 on the back surface of the bag-shaped outer cover.

The inhalation connection tube 26 and the exhalation connection tube 27 may be manufactured as flat tubes except for the function of a check valve.

Example 4: summer money embodiment

The novel nose-plug filter mask used in summer is composed of a mask belt 11, a nose bridge frame 28, a bag-shaped outer cover, a filter element 2 and a breathing tube 31. The summer rhinobyon type novel filter mask is shown in figures 17 to 18, and the structures of the bag-shaped outer cover and the bag-shaped filter element are the same as those of the common filter mask. The upper edge of the bag-shaped outer cover can be opened and closed by a zipper, the bag-shaped filter element 2 is placed and replaced, the air guide piece 30 extends out of the breathing hole 22, one end of the breathing tube 31 is connected with the upper port of the air guide piece 30, and the other end of the breathing tube 31 extends into the nasal cavity of a human body to breathe.

The summer money is to wear in the hot environment, mainly for satisfying the filter effect of anti-virus, according to actual need, also can add check valve, nasal obstruction device, nasal obstruction cavity in the structure composition.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. Novel gauze mask, including gauze mask body, filter core (2) and gauze mask area (11), the gauze mask body include skin (1) and inlayer (3), skin (1) and inlayer (3) link to each other and form a bag column structure, gauze mask area (11) are connected on the gauze mask body, filter core (2) place at the gauze mask originally internally, its characterized in that: this internal breathing pipe (7), expiratory tube (8) and the nose cover of installing of gauze mask, the inside portion of nose cover (5) is installed on the gauze mask body, the one end of breathing pipe (7) link to each other with the inside portion of nose cover (5), the other end links to each other with filter core (2), the one end of expiratory tube (8) link to each other with the inside portion of nose cover (5), the other end links to each other with filter core (2), the outside portion of nose cover (5) expose this inlayer of gauze mask, nasal obstruction pipe (6) are located nose cover (5) inboardly, breathing pipe (7) and expiratory tube (8) in all install the check valve.

2. The novel mask according to claim 1, wherein: the nasal plug comprises a body, wherein two air suction pipe interfaces, two air expiration pipe interfaces and two nasal inlet plug pipes (6) are arranged on the body, the body is hollow, the air suction pipe interfaces, the air expiration pipe interfaces and the nasal plug pipes (6) are all communicated with the body, the air suction pipes (7) are connected to the air suction pipe interfaces, and the air expiration pipes (8) are connected to the nasal outlet pipe interfaces.

3. The novel mask according to claim 2, wherein: inlayer (3) including last piece cloth and lower piece cloth, the upside of going up the piece is connected on outer (1), the downside of lower piece cloth is connected on outer (1), the left and right sides of going up piece cloth and the left and right sides of lower piece cloth are pasted through thread gluing or magic and are pasted on outer (1), go up piece cloth and lower piece cloth and cover skin after bonding on outer (1), form bag-like structure.

4. The novel mask according to claim 2, wherein: the filter element (2) is of a bag-shaped structure with the periphery being closed, a thin sponge-like support is arranged in the filter element, an expiration hole and an inspiration hole are formed in the filter element, the expiration hole is connected with an expiration pipe (8), and the inspiration hole is connected with an inspiration pipe (7).

5. The novel mask according to claim 4, wherein: filter core (2) include three parts, are the filter bag of breathing in that is located the centre respectively and are located the filter bag both sides of breathing in exhaling filter the bag, breathe in filter bag and two exhale filter the bag and separate, exhale pipe (8) be connected with exhale filter the bag through exhaling connecting pipe (27), breathing pipe (7) be connected with the filter bag of breathing in through breathing in connecting pipe (26).

6. The novel mask of claim 5, wherein: the air suction connecting pipe (26) and the air expiration connecting pipe are flat pipes.

7. The novel mask according to claim 1, wherein: the filter element (2) comprises a left part and a right part, a nose bridge frame (28) matched with the nose bridge is connected between the left part and the right part, one end of the air suction pipe (7) is connected with the nasal obstruction pipe, the other end of the air suction pipe is in contact with the filter element (2), and one end of the air exhaust pipe (8) is connected with the nasal obstruction pipe.

8. The novel mask according to claim 1, wherein: the one-way valve of the air suction pipe (7) is a movable cover (12) arranged in the air suction pipe (7), one side of the movable cover (12) is connected to the inner wall of the air suction pipe (7), and a conical stop block is arranged on the outer side of the movable cover (12); the one-way valve of the expiration pipe (8) is a movable cover (12) arranged at the tail end of the expiration pipe (8), one side of the movable cover (12) is connected to the inner wall of the expiration pipe (8), a conical stop block is arranged on the outer side of the movable cover (12), and the directions of the movable cover (12) in the inspiration pipe (7) and the movable cover (12) of the expiration pipe (8) are opposite.

9. The novel mask according to claim 1, wherein: the one-way valve of the air suction pipe (7) adopts a soft inclined film (21) with one end connected to the bottom wall inside the air suction pipe (7) and the other end extending towards the direction of the nasal obstruction pipe and being close to the top wall inside the air suction pipe (7); the one-way valve of the expiratory tube (8) adopts a soft inclined membrane (21) with one end connected with the inner bottom wall of the expiratory tube (8), and the other end extends towards the direction far away from the nasal obstruction tube (6) and is close to the inner top wall of the expiratory tube (8).

10. The novel mask according to claim 1, wherein: the one-way valve comprises an inspiration one-way valve and an expiration one-way valve, the inspiration one-way valve is installed in an inspiration tube, the expiration one-way valve is installed in an expiration tube, the inspiration one-way valve and the expiration one-way valve respectively comprise a spring valve lower cover (14) and a spring valve upper cover (15), the spring valve lower cover (14) is fixed, and the spring valve upper cover (15) is connected to the tube wall through a spring (16); the spring valve upper cover (15) and the spring valve lower cover (14) are respectively provided with a plurality of mutually matched hollow holes (18) and convex blocks (17).