CN215537896U

CN215537896U - Low oxygen mask

Info

Publication number: CN215537896U
Application number: CN202120740991.2U
Authority: CN
Inventors: 丁宇; 曹春梅; 张凌韬; 郑满
Original assignee: Tsinghua University
Current assignee: Tsinghua University
Priority date: 2021-04-12
Filing date: 2021-04-12
Publication date: 2022-01-18
Anticipated expiration: 2031-04-12

Abstract

The utility model discloses a hypoxia mask, which relates to the technical field of sports equipment and comprises: the mask comprises a mask outer shell and a mask inner shell, wherein the mask outer shell is provided with an air inlet, and the mask inner shell is provided with an air outlet; and a Tesla valve structure-like breathing module is arranged between the air inlet and the air outlet, so that the resistance of the air flowing out from the air outlet is greater than that of the air flowing out from the air inlet. Therefore, the low-oxygen mask disclosed by the utility model can effectively increase the inspiratory resistance while not obstructing the expiration process, can perform one-way flow limitation without movable accessories, does not change the structure of a Tesla valve structure breathing module when breathing forcefully, is not easy to damage, solves the problem that the traditional low-oxygen mask cannot effectively limit the oxygen entering, and is suitable for low-oxygen exercise training in various scenes.

Description

Low oxygen mask

Technical Field

The utility model relates to the technical field of sports equipment, in particular to a hypoxia mask.

Background

The hypoxia mask simulates a scene of proper hypoxia in a plateau by closely fitting the face and limiting the amount of oxygen entering the human body, and is generally applied to intermittent hypoxia training or mountain-climbing exercise pre-adaptation and the like. Present hypoxemia face guard is usually through the enclosed degree of adjustment air inlet or use the inserted sheet of different enclosed degrees to control the air input, and such design leads to the user to guarantee to get into human oxygen volume through the dynamics that increases breathing, only finally produces the influence to respiratory muscle, can't reach the training effect of real altitude hypoxemia.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a low-oxygen mask, which can effectively increase the resistance of inspiration while not obstructing the expiration process and can overcome the technical problems.

In order to solve the above problems, an embodiment of the present invention discloses a hypoxia mask, including:

the mask comprises a mask outer shell, wherein an air inlet is formed in the mask outer shell;

the mask comprises a mask inner shell, wherein an air outlet is formed in the mask inner shell;

and a Tesla valve structure-like breathing module is arranged between the air inlet and the air outlet, so that the resistance of the air flowing out from the air outlet is greater than that of the air flowing out from the air inlet.

Optionally, the tesla-like valve structure breathing module includes:

an inlet passage in communication with the air inlet;

an outlet passage communicating with the air outlet;

at least a set of class tesla valve structure breathing passage, class tesla valve structure breathing passage set up in inlet channel with between the exit channel, class tesla valve structure breathing passage with inlet channel with the exit channel communicates respectively.

Optionally, the respiratory module with the tesla-like valve structure is detachably connected with the mask outer shell and the mask inner shell.

Optionally, the method further includes:

the veneering airtight layer mounting part is arranged on the inner surface of the mask inner shell;

the veneering airtight layer is detachably connected with the veneering airtight layer mounting part, and the veneering airtight layer is used for being attached to the edge of the face of a user and avoiding the air outlet.

Optionally, the method further includes:

the filter layer mounting part is positioned on the outer side of the mask shell and arranged around the air inlet;

the filter layer, the filter layer with the connection can be dismantled to the filter layer installation department, the filter layer is used for filtering the inflow the gas of air inlet.

Optionally, the method further includes:

an oxygen sensor mounting portion provided on the mask inner case;

the oxygen sensor, the oxygen sensor with the connection can be dismantled to the oxygen sensor installation department, the oxygen sensor is used for the monitoring the inboard oxygen content of casing in the face guard.

Optionally, the method further includes:

the adjustable headband is connected with the two sides of the mask shell respectively.

The embodiment of the utility model has the following advantages:

the low-oxygen mask is provided with the Tesla valve structure-like breathing module between the air inlet and the air outlet, the Tesla valve structure-like breathing module has similar characteristics with a Tesla valve, the resistance of the air flowing out from the air outlet is larger than that of the air flowing out from the air inlet, the resistance of air suction can be effectively increased while the exhalation process is not hindered, one-way flow limiting can be carried out under the condition that movable accessories (such as an air inlet valve) are not provided, the structure of the Tesla valve structure-like breathing module cannot be changed by forced breathing, the Tesla valve structure-like breathing module is not easy to damage, the problem that the traditional low-oxygen mask cannot effectively limit oxygen entering is solved, and the low-oxygen mask is suitable for low-oxygen exercise training in various scenes.

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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of a low oxygen mask according to the present invention;

fig. 2 is a schematic diagram of the structure of a breath module of the tesla-like valve structure of the present invention.

Description of reference numerals:

1-mask outer shell; 2-a mask inner shell; 3-an air inlet; 4-air outlet; a class 5 Tesla valve architecture breathing module; 6-mounting part of facing airtight layer; 7-a filter layer mounting portion; 8-an oxygen sensor mounting; 9-an adjustable headband; 501-inlet channel; 502-an outlet channel; 503-Tesla valve like structure breathing channel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to solve the technical problem of the present invention, the present invention discloses a hypoxia mask, which may include the following structure, referring to fig. 1:

the mask comprises a mask outer shell 1, wherein an air inlet 3 is formed in the mask outer shell 1;

the mask comprises a mask inner shell 2, wherein an air outlet 4 is formed in the mask inner shell 2;

wherein, be provided with between gas inlet 3 and the gas outlet 4 and be similar to tesla valve structure breathing module 5 to the resistance when making gas flow out from gas outlet 4 is greater than the resistance when gas flows out from gas inlet 3.

The Tesla valve is a one-way conduction air flow valve invented by scientists Nigula. The difference between the forward flow and the reverse flow of the Tesla valve is huge, the resistance of the reverse flow is far larger than that of the forward flow, and the pressure difference required by the reverse flow is far larger than that of the forward flow under the condition of meeting the same flow.

The low-oxygen mask is designed into at least two layers, namely a mask outer shell 1 and a mask inner shell 2, wherein the mask outer shell 1 and the mask inner shell 2 can be integrally formed or connected together by some related means, and the low-oxygen mask is not limited herein. According to the utility model, a Tesla valve structure-like breathing module 5 is arranged between a mask outer shell 1 and a mask inner shell 2, and an air inlet 3 and an air outlet 4 of the low-oxygen mask are respectively communicated with the Tesla valve structure-like breathing module 5, so that a structure that a movable accessory (such as an air inlet 3 valve) is adopted to control air inflow in the traditional technology is replaced. The tesla-like valve structure breathing module 5 has similar features to the tesla valve described above: when a user inhales, inhaled gas flows in from the gas inlet 3 and flows to the gas outlet 4 through the respiratory module 5 with the Tesla-like valve structure, and at the moment, the airflow in the respiratory module 5 with the Tesla-like valve structure corresponds to the reverse flow mode of the Tesla valve, so that the airflow resistance is high, the content of oxygen inhaled by the user can be effectively limited, and the real training effect of altitude hypoxia can be achieved when the user wears the hypoxia mask for training; when a user exhales, exhaled gas flows in from the gas outlet 4 and flows out from the gas inlet 3 through the breathing module 5 with a Tesla-like valve structure, and at the moment, corresponding to the positive flow mode of the Tesla valve, the airflow resistance is small, so that the flow of the gas can be accelerated, and the discharge of the gas during exhalation is promoted. Based on the characteristics, the hypoxia mask can perform one-way flow limiting without movable accessories (such as the air inlet 3 valve), the structure of the Tesla valve structure-like breathing module 5 cannot be changed even if people breathe forcibly, the Tesla valve structure breathing module is not easy to damage, the problem that the traditional hypoxia mask cannot effectively limit oxygen entering is solved, and the hypoxia mask is suitable for hypoxia exercise training in various scenes and can also be used in scenes such as scientific research and the like. Regarding the specific structure of the tesla valve-like structure breathing module 5, the present embodiment is not limited too much, and can have a one-way conduction structure similar to a tesla valve, so as to realize a large inhalation resistance and a small breathing resistance.

In an embodiment of the present invention, referring to fig. 2, the breathing module 5 of tesla-like valve structure may include:

an inlet passage 501, the inlet passage 501 communicating with the gas inlet 3;

an outlet passage 502, the outlet passage 502 communicating with the air outlet 4;

at least one group of tesla-like valve structure breathing channels 503, the tesla-like valve structure breathing channels 503 are arranged between the inlet channel 501 and the outlet channel 502, and the tesla-like valve structure breathing channels 503 are respectively communicated with the inlet channel 501 and the outlet channel 502. This embodiment breathes module 5 modularization with class tesla valve structure, it can be a style subassembly, the user can be according to actual hypoxemia training or user demand, select inside hypoxia face guard of seting up multiunit class tesla valve structure breathing passageway 503, multiunit class tesla valve structure breathing passageway 503's both ends are connected with inlet channel 501 and outlet channel 502 respectively, when the user breathes in or exhales, multiunit class tesla valve structure breathing passageway 503 simultaneous working, when the restriction is breathed in, gaseous discharge when promoting to exhale, both can guarantee the gas tightness training effect of hypoxia face guard, can guarantee user's hypoxia activity again.

The working principle of the embodiment is as follows: when a user wearing the hypoxia mask inhales, gas enters from the right to the left of a breathing channel of a Tesla valve structure shown in figure 2, and a fan-shaped structure of the gas causes pressure change and partial gas backflow to block the gas from entering continuously; when the user exhales, gas is discharged from left to right through the breathing channel of the Tesla valve structure shown in fig. 2, only a small amount of gas enters the fan-shaped structure, the direction of the divided flow is consistent with that of the main gas, resistance is not generated, and the gas during exhalation can be smoothly discharged.

In an embodiment of the present invention, the respiratory module 5 with a tesla-like valve structure is detachably connected to the mask outer shell 1 and the mask inner shell 2, so that the respiratory module 5 with a tesla-like valve structure can be conveniently replaced according to actual requirements, thereby preventing cross infection of people. For example, the inlet channel 501 of the respiratory module 5 with a tesla-like valve structure may be fixed and communicated with the air inlet 3 by sleeving, and the outlet channel 502 of the respiratory module 5 with a tesla-like valve structure may be fixed and communicated with the air outlet 4 by sleeving.

In an embodiment of the present invention, as shown in fig. 1, the hypoxia mask may further include: a facing air barrier mounting part 6 and a facing air barrier (not shown), the facing air barrier mounting part 6 being provided on an inner surface of the mask inner case 2; the facing air-tight layer is detachably connected with the facing air-tight layer mounting part 6, and the facing air-tight layer is used for being attached to the edge of the face of a user and avoiding the air outlet 4. On the basis of the above-mentioned low oxygen mask with the respiratory module 5 having a tesla-like valve structure, the inner surface of the mask inner shell 2 is provided with the facing air-tight layer mounting part 6, and the facing air-tight layer mounting part 6 is used for mounting the facing air-tight layer and is detachably connected with the facing air-tight layer. Optionally, the facing air-tight layer and the facing air-tight layer mounting part 6 can be connected in a magic tape bonding or clamping manner, and when bonding is performed, a plurality of facing air-tight layer mounting parts 6 can be arranged on the inner surface of the mask inner shell 2 and at positions avoiding the air outlet 4 so as to be better connected with the facing air-tight layer; referring to fig. 1, when the air-tight layer is clamped, the mounting portion 6 of the facing air-tight layer is disposed on two sides of the inner surface of the inner shell 2 of the mask, and the facing air-tight layer is provided with a hole which is matched with and corresponds to the air outlet 4.

The wainscot air barrier is installed behind wainscot air barrier installation department 6, can hug closely with the internal surface of casing 2 in the face guard, so can with the laminating of user's facial edge, the wainscot air barrier avoids gas outlet 4 to set up, so can guarantee that gas only gets into and flows out from gas outlet 4 through the air inlet 3 of face guard shell body 1, and can't get into through the gap of face guard with skin contact, guarantees the effect when the hypoxemia face guard uses. The facing airtight layer can be made of a skin-proof material, such as silica gel, so that the facing airtight layer can be effectively attached to the edge of the face of a user, and the skin of the face of the user can be prevented from being abraded.

In an embodiment of the present invention, as shown in fig. 1, the hypoxia mask may further include: a filter layer mounting portion 7 and a filter layer (not shown), the filter layer mounting portion 7 being located outside the mask shell body 1 and disposed around the air inlet 3, the filter layer being detachably connected to the filter layer mounting portion 7, the filter layer being for filtering the gas flowing into the air inlet 3. This embodiment is on the basis of the above-mentioned hypoxemia face guard that has class tesla valve structure respiratory module 5, still be provided with filter layer installation department 7 in the outside of face guard shell body 1, this filter layer installation department 7 be used for installing the filter layer and with belong to one kind between the filter layer and dismantle the connected mode, the filter layer can effectively filter the air that gets into hypoxemia face guard air inlet 3, most dust can be filtered out at least, can prevent that class tesla valve structure respiratory module 5 from blockking up, whether the user can consider whether installing the filter layer according to the practical application demand. For example, a user may use a low oxygen mask in a location with poor air quality, and may choose to install a filter layer.

The filtering layer and the filtering layer installation part 7 can be connected or clamped by adopting bonding, hooks, and the filtering layer installation part 7 can be provided with a plurality of air outlets 4 around the air outlets so as to evenly install the filtering layer. Wherein, the filter layer can be a filter screen. During actual installation, because the filter layer installation portion 7 is located the outside of the mask shell body 1 and is arranged around the air inlet 3, so the filter layer is installed behind the filter layer installation portion 7 and can cover the surface of the air inlet 3, and the air flowing into the air inlet 3 is filtered.

In an embodiment of the present invention, as shown in fig. 1, the hypoxia mask may further include: oxygen sensor installation department 8 and oxygen sensor (not shown in the figure), oxygen sensor installation department 8 sets up on the casing 2 in the face guard, and oxygen sensor installation department 8 can be dismantled and be connected, and oxygen sensor is used for monitoring the inboard oxygen content of casing 2 in the face guard. This embodiment is provided with oxygen sensor installation department 8 on the basis of the above-mentioned hypoxemia face guard that has class tesla valve structure breathing module 5 in its face guard, this oxygen sensor installation department 8 is used for installing oxygen sensor, and oxygen sensor between belong to one kind can dismantle the connected mode, so, whether the user can consider to install oxygen sensor according to self actual demand, has more the hommization. Optionally, the oxygen sensor installation part 8 and the oxygen sensor can be connected in a detachable mode of clamping, correspondingly, the oxygen sensor installation part 8 can be a clamping groove or a clamping head to be matched with a clamping part on the oxygen sensor.

In practical application, the oxygen sensor can detect the oxygen content near the nasal cavity to react, if the oxygen concentration detected by the oxygen sensor rises, the whole hypoxia mask is possibly provided with other air inlet channels except the air inlet 3, and the problem that the hypoxia mask is damaged or an air inlet gap exists between the hypoxia mask and the face can be considered; if the oxygen concentration detected by the oxygen sensor is reduced, the problem that the breathing module 5 with the Tesla-like valve structure may be internally blocked or damaged is solved, and if the self-checking of the breathing module 5 with the Tesla-like valve structure can be realized, the replacement can be carried out in time. Certainly, under the condition that the low-pressure mask is not delivered from the factory and is still under research and development, the oxygen concentration detected by the oxygen sensor under the wearing state of the low-oxygen mask can be compared with the oxygen concentration range under the simulated intermittent low-oxygen training or mountaineering motion, so as to detect whether the breathing channel 503 of the tesla-like valve structure in the tesla-like valve structure breathing module 5 is too long or too short, and whether the group number is proper, and further optimize the tesla-like valve structure breathing module 5.

In an embodiment of the present invention, as shown in fig. 1, the hypoxia mask may further include: an adjustable headband 9, wherein the adjustable headband 9 is respectively connected with two sides of the mask outer shell 1. The adjustable headband 9 is mainly adjustable in length direction, so that the adjustable headband can adapt to different head circumferences and is suitable for different users. The adjustable headband 9 can be an elastic band, the elastic band is simple in structure, can be better attached to the head of a user, and the tightness is more suitable. The adjustable head band 9 can also be two head bands which are clamped (similar to a connecting structure of a binding band), so that the adjustment in the length direction can be realized. It should be noted that the adjustable headband 9 may also be removably attached to the sides of the mask shell 1, so that the adjustable headband 9 may be easily replaced when the adjustable headband 9 is broken or soiled.

It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.

It should also be noted that, in this document, 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 in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Moreover, relational terms such as "first" and "second" are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions or should not be construed as indicating or implying relative importance. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or terminal equipment comprising the element.

The technical solutions provided by the present invention are described in detail above, and the principle and the implementation manner of the present invention are described in this document by using specific examples, and the description of the above examples is only for assisting understanding of the present invention, and the content of the present description should not be construed as limiting the present invention. While various modifications of the illustrative embodiments and applications herein will be apparent to those skilled in the art, it is not desired to be exhaustive or exhaustive that all such modifications and variations are within the scope of the utility model.

Claims

1. A hypoxia mask, comprising:

the mask comprises a mask outer shell (1), wherein an air inlet (3) is formed in the mask outer shell (1);

the mask comprises a mask inner shell (2), wherein an air outlet (4) is formed in the mask inner shell (2);

a Tesla valve-like structure breathing module (5) is arranged between the gas inlet (3) and the gas outlet (4), so that the resistance of gas flowing out of the gas outlet (4) is greater than that of gas flowing out of the gas inlet (3).

2. Hypoxia mask according to claim 1, wherein the Tesla valve-like structure breathing module (5) comprises:

an inlet channel (501), the inlet channel (501) communicating with the air inlet (3);

an outlet channel (502), the outlet channel (502) communicating with the air outlet (4);

at least one class Tesla valve structure breathing passage (503), the class Tesla valve structure breathing passage (503) is set up in the inlet passage (501) with between the outlet passage (502), class Tesla valve structure breathing passage (503) with inlet passage (501) with outlet passage (502) communicate respectively.

3. Hypoxia mask according to claim 1 or 2, wherein the Tesla valve-like structure breathing module (5) is detachably connected to both the mask outer shell (1) and the mask inner shell (2).

4. The hypoxia mask of claim 1, further comprising:

the veneering air-tight layer mounting part (6), the veneering air-tight layer mounting part (6) is arranged on the inner surface of the mask inner shell (2);

the veneering airtight layer is detachably connected with the veneering airtight layer mounting part (6), and the veneering airtight layer is used for being attached to the edge of the face of a user and avoiding the air outlet (4).

5. The hypoxia mask according to claim 1 or 4, further comprising:

the filter layer mounting part (7) is positioned on the outer side of the mask outer shell (1) and arranged around the air inlet (3);

the filter layer, the filter layer with the connection can be dismantled in filter layer installation department (7), the filter layer is used for filtering the inflow the gas of air inlet (3).

6. The hypoxia mask of claim 1, further comprising:

an oxygen sensor mounting part (8), wherein the oxygen sensor mounting part (8) is arranged on the mask inner shell (2);

the oxygen sensor, the oxygen sensor with the connection can be dismantled in oxygen sensor installation department (8), the oxygen sensor is used for monitoring the inboard oxygen content of casing (2) in the face guard.

7. The hypoxia mask of claim 1, further comprising:

the adjustable headband (9), adjustable headband (9) with the both sides of face guard shell body (1) are connected respectively.