KR20230113063A - Exhaust valve for mask - Google Patents

Abstract

In the present invention, in combining an exhaust valve with a mask, a hole of a clear size is drilled in the mask corresponding to the size of the exhaust valve, a valve seat is fixed in place, a separate supply of gas necessary for the user's breathing, or a valve It relates to an exhaust valve for a mask for ensuring the stability of a body and a valve cap combination, supplying oxygen, or stably securing a seat space.
To this end, the exhaust valve for the mask is detachably coupled to the valve body through which the opening and closing holes are formed in the center, and detachably coupled to the valve body and detachably coupled to the valve seat and valve body for opening and closing the opening and closing holes according to breathing and communicating with the opening and closing holes It includes a seat space and a valve cap provided with a ventilating part that communicates the outside and the seat space.

Description

Exhaust valve for mask {EXHAUST VALVE FOR MASK}

The present invention relates to an exhaust valve for a mask, and more specifically, in combining an exhaust valve with a mask, a hole of a clear size is drilled in the mask corresponding to the size of the exhaust valve, a valve seat is fixed in place, Separately, it relates to an exhaust valve for a mask for supplying gas necessary for breathing by a user, securing the stability of a valve body and valve cap combination, supplying oxygen, or stably securing a seat space.

In general, masks are worn on the face to prevent harmful substances generated from contaminated areas, various emergencies, industrial fields where air can be polluted, and nuclear power plants that can be exposed to radioactive substances from entering the human body. Masks can be largely divided into full-face masks that protect the entire face, including the eyes and respiratory tract, and half-type masks that protect only the respiratory tract.

In the case of a half-type mask, it is widely used in industrial fields where it is not necessary to protect the eyes because the structure is simple and the fit is good. In a half-type mask, the exhaust valve is a part that promotes convenience in breathing by eliminating air resistance in the discharge through the filter when breathing air is discharged to the mask wearer. The exhaust valve thoroughly seals the air when the wearer inhales the air, so that the air removes impurities through the filter, which helps safety.

While wearing the mask, the wearer performs work while taking various postures. During this process, the gap between the valve and the valve must be easily opened during exhaustion and accurately sealed during inhalation.

In more detail, in exhalation, the exhalation valve opens as the breathing air pressurizes the valve, so that carbon dioxide and moisture are discharged along with the exhalation air, and in inhalation, the valve closes the exhaust valve, so bacteria and viruses flow in between the mask and the face. can prevent it from happening.

However, since the conventional exhaust valve is integrally formed with the mask, it is difficult to recycle the existing exhaust valve when replacing the mask.

In addition, in order to replace the exhaust valve, a hole is formed separately in the new mask, but it is difficult to clearly determine the size of the hole corresponding to the exhaust valve of the hole.

Republic of Korea Registered Utility Model Publication No. 20-0446949 (name of the design: Exhaust valve and mask equipped with it, announced on December 17, 2009) Republic of Korea Patent Registration No. 10-1348238 (Title of Invention: Mask Exhaust Valve, 2014. 01. 22. Notice)

An object of the present invention is to solve the conventional problems, in coupling an exhaust valve to a mask, drilling a hole of a clear size in the mask corresponding to the size of the exhaust valve, fixing the valve seat in place, or separately It is to provide an exhaust valve for a mask to supply gas necessary for the user's breathing, to secure the coupling stability of the valve body and the valve cap, to supply oxygen, or to stably secure the seat space.

According to a preferred embodiment for achieving the object of the present invention described above, the exhaust valve for a mask according to the present invention includes a valve body through which opening and closing holes are formed in the center; a valve seat detachably coupled to the valve body and opening and closing the opening/closing hole according to respiration; and a valve cap detachably coupled to the valve body and having a seat space communicating with the opening/closing hole and a ventilation part communicating the seat space with the outside.

Here, in the valve cap, a blade support groove into which a blade for cutting the mask is fitted so as to expose the opening/closing hole portion; is recessed.

Here, at the bottom of the blade support groove, a blade inclination portion formed to be inclined at an inclination angle of the groove based on the insertion direction of the blade is provided, and the blade includes: an inclined blade portion for cutting the mask; and an inclined support portion indicating a portion opposite to the inclined blade portion, wherein at least one of the inclined blade portion and the inclined support portion is inclined at a blade inclination angle substantially equal to the groove inclination angle.

Here, a mounting protrusion supporting the valve seat is protruded from one of the valve body and the valve cap.

Here, a fitting protrusion into which the mounting protrusion is fitted is protruded from the other one of the valve body and the valve cap.

Here, one of the valve body and the valve seat is provided with an oxygen pad through which gas required for the user's breathing is discharged in response to inhalation.

The exhaust valve for a mask according to the present invention further includes a breathing tube forming a supply path of gas necessary for the user's breathing.

An exhaust valve for a mask according to the present invention further includes an oxygen supply unit coupled to the breathing pipe for supplying gas necessary for the user's breathing.

Here, a mounting protrusion supporting the valve seat is protruded from one of the valve body and the valve cap, and a fitting protrusion into which the mounting protrusion is fitted to the other one of the valve body and the valve cap; When is protruded, a first breathing hole is formed through the mounting protrusion, and a second breathing hole communicating with the first breathing hole is formed through the fitting protrusion, and the breathing pipe is formed through the valve cap. Is coupled to, and the supply path of the gas in the breathing tube is in communication with the breathing hole that is opened to the outside based on the mask.

An exhaust valve for a mask according to the present invention further includes a connector coupling the breathing tube and the valve cap.

Here, at least one of the breathing pipe, the connector, the first breathing hole, and the second breathing hole may include a check valve for selecting whether gas necessary for user's breathing passes.

At this time, when the check valve is provided in at least one of the breathing tube, the first breathing hole, and the second breathing hole, the opening of the breathing hole opened to the outside is opened and closed with a separate opening and closing cover.

At this time, when the check valve is provided in the connector, when one side of the connector is coupled to the valve cap, the other side of the connector is coupled to the breathing tube so that gas required for the user's breathing is delivered to the corresponding breathing hole. The check valve is disposed in a forward direction, and when the other side of the connector is coupled to the valve cap, the check valve is disposed in a reverse direction so that external air based on the mask is blocked in response to inhalation.

The exhaust valve for a mask according to the present invention further includes a coupling unit coupling the valve body and the valve cap as the valve cap rotates based on the valve body.

Here, the coupling unit includes a coupling slider provided on any one of the outer circumferential surface of the seat support ring of the valve body and the inner wall of the cap member of the valve cap; and a coupling guide provided on the other one of the outer circumferential surface of the seat support ring of the valve body and the inner wall of the cap member of the valve cap, and having a guide groove into which the coupling slider is fitted and formed to be recessed.

Here, the first height at which one side of the valve cap protrudes to the outside is lower than the second height at which the other side of the valve cap protrudes to the outside.

Here, the valve body includes a body ventilation member through which the opening and closing holes are formed; and a body flange extending from the body ventilation member to support the mask.

Here, the valve body further includes a seat support ring protruding along an edge of the body ventilation member.

Here, the valve cap may include a cap member including a side plate portion forming the seat space and protruding outward to form the seat space, and a closing plate portion coupled to the side plate portion to close the seat space from the outside; and a cap flange protruding from the cap member so as to be closely supported on the mask by interaction with the valve body.

At this time, the first height at which one side of the side plate protrudes to the outside is lower than the second height at which the other side of the side plate protrudes to the outside.

Here, in one of the valve body and the valve cap, a recessed ring part; is formed in a ring shape, and in the other one of the valve body and the valve cap, a protruding ring part so that a part of the mask can be inserted into the recessed ring part. ; is formed protruding in the form of a ring.

According to the exhaust valve for a mask according to the present invention, in coupling the exhaust valve to the mask, a hole of a clear size is drilled in the mask corresponding to the size of the exhaust valve, the valve seat is fixed in place, or the user breathes separately. It is possible to supply necessary gas, secure the coupling stability between the valve body and the valve cap, supply oxygen, or secure the seat space stably.

In addition, the present invention can select whether to use the blade through the structure of the blade support groove.

In addition, the present invention can stably fix the valve seat in the valve body through the mounting protrusion.

In addition, the present invention can improve the coupling force between the valve body and the valve cap through the fitting protrusion, and stabilize the rotation of the valve cap relative to the valve body.

In addition, the present invention can supply oxygen to the user in response to inhalation through the oxygen pad and smoothly maintain the user's breathing.

In addition, the present invention can maintain the user's breathing smoothly by providing a supply path of oxygen necessary for the user in response to inhalation through the breathing tube.

In addition, the present invention can maintain the user's breathing smoothly by supplying necessary oxygen to the user in response to inhalation through the oxygen supply unit.

In addition, the present invention can stably deliver oxygen delivered through the breathing tube to the user's face without interfering with the coupling between the breathing tube and the valve body and the valve cap through the coupling structure of the breathing tube.

In addition, the present invention can smoothly attach and detach the valve cap based on the valve body through the coupling unit, and prevent the valve cap from being arbitrarily separated from the valve body.

In addition, the present invention can improve the bonding force between the valve body and the valve cap according to the rotational motion of the valve cap based on the valve body through the detailed configuration of the coupling unit, improve the adhesion between the mask and the exhaust valve, and in the valve body The normal and reverse rotation of the valve cap can be smoothly performed.

In addition, the present invention can ensure a sufficient seat space through the stepped structure of the valve cap, while smoothing the flow of air in response to inhalation and exhalation.

In addition, according to the present invention, the edge of the valve body is stably stacked and supported on the mask through the detailed configuration of the valve body, and the valve body and the mask are stably adhered to each other.

In addition, the present invention can improve the adhesion between the valve body and the valve seat in an apnea state between inhalation and exhalation through the seat support ring in the valve body.

In addition, the present invention facilitates discharge of exhaled breath through the detailed configuration of the valve cap, and the edge of the valve cap is stably stacked and supported on the mask, while ensuring that the valve cap and the mask are in close contact with each other stably.

In addition, the present invention can improve the adhesion between the exhaust valve and the mask through the coupling structure of the body flange and the cap flange, and can prevent external air from being introduced through a hole perforated in the mask.

In addition, the present invention prevents the flow of the valve seat or oxygen pad through the membrane coupling hole and the pad coupling hole, and allows the valve seat or oxygen pad to be stably positioned on the mounting protrusion.

In addition, the present invention can stably fix the valve seat or oxygen pad coupled to the mounting protrusion in place through the fitting protrusion, and prevents the valve seat or oxygen pad coupled to the mounting protrusion from being separated from the mounting protrusion, The coupling force between the valve body and the valve cap may be improved, and rotation of the valve cap may be stabilized based on the valve body.

1 is a perspective view showing an exhaust valve for a mask according to an embodiment of the present invention.
Figure 2 is a side view of Figure 1;
Figure 3 is an exploded perspective view of Figure 1;
4 is a perspective view showing a valve body in an exhaust valve for a mask according to an embodiment of the present invention.
5 is a bottom perspective view showing a valve cap in an exhaust valve for a mask according to an embodiment of the present invention.
6 is a view showing a storage state of a blade in an exhaust valve for a mask according to an embodiment of the present invention.
7 is a view showing a state of use of a blade in an exhaust valve for a mask according to an embodiment of the present invention.
8 is a cross-sectional view showing a connection state of a breathing tube in an exhaust valve for a mask according to an embodiment of the present invention.

Hereinafter, an embodiment of an exhaust valve for a mask according to the present invention will be described with reference to the accompanying drawings. At this time, the present invention is not limited or limited by the examples. In addition, in describing the present invention, detailed descriptions of well-known functions or configurations may be omitted to clarify the gist of the present invention.

1 to 8, the exhaust valve for a mask according to an embodiment of the present invention is detachably coupled to the valve body 10 through which the opening and closing hole 111 is formed in the center and the valve body 10, A valve seat 20 for opening and closing the opening/closing hole 111 according to breathing, a seat space detachably coupled to the valve body 10 and communicating with the opening/closing hole 111, and a ventilation unit communicating the seat space with the outside It may include a valve cap 30.

The valve body 10 may include a body ventilation member 11 through which an opening/closing hole 111 passes, and a body flange 13 extending from the body ventilation member 11 to support a mask.

A mounting shaft portion is provided at the center of the body ventilation member 11, and the opening/closing hole portion 111 may be disposed radially with respect to the mounting shaft portion.

The body flange 13 may have a recessed ring portion 131 formed in a ring shape or a protruding ring portion 321 formed protrudingly.

The valve body 10 may further include a seat support ring 12 protruding along the edge of the body ventilation member 11 . Then, the edge of the valve seat 20 may be laminated and supported by the seat support ring 12 or wrapped by the seat support ring 12 .

The valve seat 20 has elasticity. Then, the valve seat 20 is elastically deformed with respect to exhalation to open the opening/closing hole 111, and maintains a state in which the opening/closing hole 111 is closed by elastic force in an inhalation or non-breathing state. At this time, when the edge of the valve seat 20 is stacked and supported on the seat support ring 12, the distance between the central portion of the valve seat 20 relative to the valve body 10 is the distance between the edge of the valve seat 20 Since it is arranged equal to or smaller than the distance, the elastic force of the valve seat 20 can be improved and the closed state of the opening/closing hole 111 can be stably maintained.

A membrane coupling hole 21 into which the mounting protrusion 41 is fitted may be formed through the central portion of the valve seat 20 .

The valve cap 30 may include a cap member 31 forming a seat space and a cap flange 32 extending from the cap member 31 so as to be closely supported on the mask by interaction with the valve body 10. .

The cap member 31 includes a side plate part 31-1 protruding outward relative to the mask to form a seat space, and a closing plate part 31 coupled with the side plate part 31-1 to close the seat space from the outside. -2) may be included. The first height h1 at which one side of the side plate 31-1 protrudes to the outside is lower than the second height h2 at which the other side of the side plate 31-1 protrudes to the outside.

Accordingly, the closing plate portion 31-2 is formed on one side (of the side plate portion 31-1) of the valve cap 30 based on the protruding direction of the valve cap 30 (the protruding direction of the side plate portion 31-1). one side) to form an upward slope toward the other side of the valve cap 30 (the other side of the side plate portion 31-1).

A coupling shaft portion is formed at the center of the cap member 31 in the closing plate portion 31-2 to support the end of the mounting protrusion 41. A fitting protrusion 42 in which an fitting groove 421 is recessed may be protruded from a central portion of the closing plate part 31-2 to be fitted with the mounting protrusion 41. Conversely, when the fitting protrusion 42 is provided on the body ventilation member 11 of the valve body 10, the mounting protrusion 41 may be provided on the closing plate portion 31-2 of the cap member 31.

The cap member 31 is formed through a ventilation unit that communicates the outside of the mask with the seat space. A side ventilation part 311 may be formed through the side plate part 31-1 so that the seat space and the outside communicate with each other. A closing ventilation portion 312 may be formed through the closing plate portion 31-2 so that the seat space communicates with the outside. In particular, the finishing ventilation part 312 can make the appearance beautiful by showing the pattern of Taegeukgi.

A positioning rib 313 may be protruded from the inner wall of the cap member 31 (the inner wall of the side plate) to properly position the coupling slider 51 of the coupling unit, which will be described later.

In the valve cap 30, the blade support groove 314 into which the blade 70 (a tool for cutting the mask to expose the opening/closing hole 111) is fitted into the side plate portion 31-1 of the cap member 31 is recessed. is formed The inlet of the blade support groove 314 opens toward the mask or valve body 10 .

A blade inclination portion 315 may be provided at the bottom of the blade support groove 314 to be inclined at an inclination angle of the groove based on the insertion direction of the blade 70 .

At this time, the blade 70 may represent a trapezoid or a parallelogram. The blade 70 may include an inclined blade portion 72 for cutting the mask and an inclined support portion 71 pointing to a portion opposite to the inclined blade portion 72 .

Since at least one of the inclined blade part 72 and the inclined support part 71 is formed inclined at a blade inclined angle substantially equal to the groove inclined angle, as shown in FIG. 7(a), when storing the blade 70, the groove The blade 70 is inserted into the blade support groove 314 so that the rake angle and the blade rake angle match. Then, the inclined support portion 71 or the inclined blade portion 72 representing the blade inclination angle is supported on the blade inclined portion, and the blade 70 is prevented from protruding from the blade supporting groove 314.

In addition, since at least one of the inclined blade portion 72 and the inclined support portion 71 is formed to be inclined at a blade inclination angle substantially equal to the groove inclination angle, when the blade 70 is used as shown in FIG. 7 (b), the groove inclination angle The blade 70 is inserted into the blade support groove 314 so that the blade inclination angle is opposite to the blade inclination angle. Then, the inclined support portion 71 is not supported by the blade inclined portion 315, and the inclined blade portion 72 of the blade 70 protrudes from the blade supporting groove 314, so that the mask can be cut with the blade 70. there is.

The cap flange 32 overlaps the body flange 13 with the mask therebetween. In the cap flange 32, a protruding ring portion 321 may be formed protrudingly corresponding to the body flange 13, or a recessed ring portion 131 may be formed recessed in a ring shape. Then, the protruding ring portion 321 may be inserted into the recessed ring portion 131 while pressurizing the mask to improve adhesion between the body flange 13, the mask, and the cap flange 32.

As a result, the recessed ring portion 131 is recessed in a ring shape in one of the valve body 10 and the valve cap 30, and a part of the mask is recessed in the other one of the valve body 10 and the valve cap 30. The protruding ring portion 321 protrudes in a ring shape so as to be inserted into the ring portion 131 .

A mounting protrusion 41 supporting the valve seat 20 may protrude from one of the valve body 10 and the valve cap 30 . A cutting edge 411 is provided at the free end of the mounting protrusion 41 so that a film coupling hole 21 can be bored in the central portion of the valve seat 20 . In addition, the mounting protrusion 41 may punch a pad coupling hole 61 of the oxygen pad 60 to be described later. The membrane coupling hole 21 of the valve seat 20 may be (forcibly) fitted into the mounting protrusion 41 . Although not shown, since a support convex portion (not shown) is formed on the outer circumferential surface of the mounting protrusion 41, it prevents the valve seat 20 from flowing in the mounting protrusion 41 in response to exhalation or inhalation, and the mounting protrusion 41 ) It is possible to fix the valve seat 20 in place.

In the exhaust valve for a mask according to an embodiment of the present invention, one of the valve body 10 and the valve seat 20 is provided with an oxygen pad 60 from which gas necessary for breathing of the user is discharged in response to inhalation. can Then, in response to inhalation, the valve seat 20 closes the opening/closing hole 111, and the oxygen pad 60 discharges gas necessary for the user's breathing according to the air flow between the mask and the face. In the oxygen pad 60 even in exhalation, gases necessary for the user's respiration may be discharged. Like the membrane coupling hole 21 , a pad coupling hole 61 may be formed through the central portion of the oxygen pad 60 .

An exhaust valve for a mask according to an embodiment of the present invention may further include a breathing pipe 80 forming a supply path of gas required for user's breathing.

A mounting protrusion 41 supporting the valve seat 20 protrudes from one of the valve body 10 and the valve cap 30, and a mounting protrusion 41 protrudes from the other of the valve body 10 and the valve cap 30. When the fitting protrusion 42 to which 41 is fitted is protruded, the first breathing hole 412 is formed through the mounting protrusion 41, and the fitting protrusion 42 has a fitting groove 421. A second breathing hole 422 extending and communicating with the first breathing hole 412 is formed through. Here, an induction inclined portion 413 is provided at the end of the mounting protrusion 41 to facilitate the movement of gas required for the user's breathing between the first breathing hole 412 and the second breathing hole 422. there is.

At this time, the breathing tube 80 is coupled to the valve cap 30, and the gas supply path in the breathing tube 80 is a corresponding breathing hole that is opened to the outside based on the mask (in FIG. 8, the second breathing hole 422 ) corresponds to) and is in communication with.

The exhaust valve for a mask according to the present invention may further include a connector 81 coupling the breathing tube 80 and the valve cap 30 to each other.

Here, at least one of the respiration pipe 80, the connector 81, the first respiration hole 412 and the second respiration hole 422 has a check valve 82 for selecting whether to pass gas necessary for the user's respiration. may be provided.

At this time, when the check valve 82 is provided in at least one of the breathing pipe 80, the first breathing hole 412, and the second breathing hole 422, the opening of the corresponding breathing hole opened to the outside is separately opened and closed. It is opened and closed with a lid (not shown).

At this time, when the check valve 82 is provided in the connector 81, the connector 81 includes a first connecting portion forming one side of the connector 81 and a second connecting portion forming the other side of the connector 81. can be distinguished. A flange portion supported by the valve cap 30 protrudes from a middle portion of the connector 81 to indicate a limit of engagement with the valve cap 30 .

Here, when the first connecting part, which is one side of the connector 81, is coupled to the valve cap 30, the other side of the connector 81 is coupled to the breathing tube 80, so that the gas required for the user's breathing is delivered to the corresponding breathing hole. The check valve 82 is arranged in the forward direction as shown in FIG.

In addition, when the second connecting part, which is the other side of the connector 81, is coupled to the valve cap 30, the check valve 82 is disposed in the reverse direction so that external air based on the mask is blocked in response to inhalation.

Although not shown, one side of the breathing tube 80 is coupled to the body ventilation member 11 of the valve body 10, and the other side of the breathing tube (not shown) can pass through the side ventilation part 311, so the valve Corresponding to the rotational coupling of the cap 30, the breathing tube (not shown) is not interfered with.

Here, the coupling position of the breathing tube 80 is not limited.

An exhaust valve for a mask according to an embodiment of the present invention may further include an oxygen supply unit 90 coupled to the breathing tube 80 and the breathing tube 80 for supplying gas necessary for the user's breathing. . The oxygen supply unit 90 includes an oxygen cylinder or a portable oxygen generator, and can supply gas from the oxygen supply unit 90 to the user in response to the user's breathing. Gas from the oxygen supply unit 90 may be supplied through the breathing tube 80 even in an apnea state.

An exhaust valve for a mask according to an embodiment of the present invention may further include a coupling unit coupling the valve body 10 and the valve cap 30 as the valve cap 30 rotates based on the valve body 10. can

The coupling unit is a coupling slider 51 provided on either one of the outer circumferential surface of the seat support ring 12 of the valve body 10 and the inner wall of the cap member 31 of the valve cap 30, and the valve body 10. A coupling guider 52 provided on the other of the outer circumferential surface of the seat support ring 12 and the inner wall of the cap member 31 of the valve cap 30 and having a guide groove 521 recessed into which the coupling slider 51 is fitted. ) may be included. Accordingly, when the valve cap 30 is rotated based on the valve body 10, the coupling slider 51 is fitted into the guide groove 521 to couple the valve body 10 and the valve cap 30. there is.

At this time, the coupling slant portion 511 may be formed at an angle to the coupling slider 51 . In addition, a guide inclination portion 522 may be formed to be inclined in the guide groove 521 corresponding to the coupling inclination portion 511 . Accordingly, the coupling slider 51 can be stably inserted into the entrance of the guide groove 521, and the coupling force between the coupling slider 51 and the coupling guide 52 can be improved.

According to the above-mentioned exhaust valve for a mask, in forming a hole for coupling the exhaust valve to the mask, a hole having a clear size corresponding to the size of the exhaust valve may be drilled in the mask.

In addition, it is possible to select whether to use the blade 70 through the structure of the blade support groove 314 .

In addition, the valve seat 20 can be stably fixed to the valve body 10 through the mounting protrusion 41 .

In addition, coupling force between the valve body 10 and the valve cap 30 may be improved through the fitting protrusion 42 , and rotation of the valve cap 30 based on the valve body 10 may be stabilized.

In addition, it is possible to supply oxygen to the user in response to inhalation through the oxygen pad 60 and smoothly maintain the user's breathing.

In addition, it is possible to smoothly maintain the user's breathing by providing a supply path of oxygen necessary for the user in response to inhalation through the breathing tube 80.

In addition, it is possible to smoothly maintain the user's breathing by supplying necessary oxygen to the user in response to inhalation through the oxygen supply unit 90 .

In addition, the breathing tube 80 does not interfere with the coupling between the valve body 10 and the valve cap 30 through the coupling structure of the breathing tube 80, and oxygen delivered through the breathing tube 80 is transferred to the user's face. can be delivered stably. In addition, when the breathing tube 80 is separated from the valve cap 30, it is possible to prevent external air from entering through the breathing hole in response to the user's breathing.

In addition, it is possible to smoothly attach and detach the valve cap 30 based on the valve body 10 through the coupling unit, and prevent the valve cap 30 from being arbitrarily separated from the valve body 10 .

In addition, the coupling force between the valve body 10 and the valve cap 30 can be improved according to the rotational motion of the valve cap 30 with respect to the valve body 10 through the detailed configuration of the coupling unit, and the mask and the exhaust valve can be improved. It is possible to improve adhesion of the valve body 10 and smoothly rotate the valve cap 30 forward and backward.

In addition, while sufficient seat space is secured through the stepped structure of the valve cap 30, air flow can be smoothed in response to inhalation and exhalation.

In addition, through the detailed configuration of the valve body 10, the edges of the valve body 10 are stably stacked and supported on the mask, while the valve body 10 and the mask are stably adhered to each other.

In addition, it is possible to improve the adhesion between the valve body 10 and the valve seat 20 in an apnea state between inhalation and exhalation through the seat support ring 12 in the valve body 10 .

In addition, the detailed configuration of the valve cap 30 facilitates the discharge of exhaled breath, and the edges of the valve cap 30 are stably stacked and supported on the mask, while the valve cap 30 and the mask are stably adhered to. do.

In addition, through the coupling structure of the body flange 13 and the cap flange 32, adhesion between the exhaust valve and the mask can be improved, and external air can be prevented from being introduced through a hole perforated in the mask.

In addition, the flow of the valve seat 20 or the oxygen pad 60 is prevented through the membrane coupling hole 21 and the pad coupling hole 61, and the valve seat 20 or the oxygen pad 60 is attached to the mounting protrusion 41 ) to be stably positioned.

In addition, the valve seat 20 or the oxygen pad 60 coupled to the mounting protrusion 41 through the fitting protrusion 42 can be stably fixed in place, and the fitting protrusion 42 is the valve seat 20 Since it supports the central part of the mounting protrusion 41, the valve seat 20 or the oxygen pad 60 coupled to the mounting protrusion 41 is prevented from being separated from the mounting protrusion 41, and the valve body 10 and the valve cap 30 It is possible to improve the coupling force and stabilize the rotation of the valve cap 30 relative to the valve body 10 .

As described above, the preferred embodiments of the present invention have been described with reference to the drawings, but those skilled in the art can make various modifications to the present invention within the scope not departing from the spirit and scope of the present invention described in the claims below. may be modified or changed.

10: valve body 11: body ventilation member 111: opening and closing hole
12: seat support ring 13: body flange 113: recessed ring
20: valve seat 21: membrane coupling hole 30: valve cap
31: cap member 31-1: side plate part 31-2: closing plate part
311: side ventilation part 312: closing ventilation part 313: fixed position rib
314: blade support groove 315: blade slope 32: cap flange
321: protruding ring portion 41: mounting protrusion 411: tip
412: first breathing hole 413: induction slope 42: fitting protrusion
421: Fitting groove 422: Second breathing hole 51: Combined slider
511: coupling slope 52: coupling guider 521: guide groove
522: guide slope 60: oxygen pad 61: pad coupling hole
70: blade 71: inclined support 72: inclined blade
80: breathing tube 81: connector 82: check valve
90: oxygen supply unit

Claims (6)

A valve body through which an opening and closing hole is formed in the center;
a valve seat detachably coupled to the valve body and opening and closing the opening/closing hole according to respiration; and
An exhaust valve for a mask comprising a valve cap detachably coupled to the valve body and having a seat space communicating with the opening/closing hole, and a ventilation part communicating the seat space with the outside.
According to claim 1,
In the valve cap,
An exhaust valve for a mask, characterized in that a blade support groove into which a blade for cutting the mask is fitted so as to expose the opening/closing hole portion; is recessed.
According to claim 2,
At the bottom of the blade support groove, a blade inclination portion formed to be inclined at a groove inclination angle based on the insertion direction of the blade; is provided,
On the blade,
an inclined blade for cutting the mask; and
An inclined support portion indicating a portion opposite to the inclined blade portion; included,
At least one of the inclined blade part and the inclined support part,
An exhaust valve for a mask, characterized in that it is formed inclined at a blade inclination angle substantially equal to the groove inclination angle.
According to claim 1,
An exhaust valve for a mask, characterized in that a mounting protrusion supporting the valve seat is protruded from one of the valve body and the valve cap.
According to claim 4,
An exhaust valve for a mask, characterized in that a fitting protrusion into which the mounting protrusion is fitted is protruded from the other one of the valve body and the valve cap.
According to any one of claims 1 to 4,
In one of the valve body and the valve seat,
An exhaust valve for a mask, characterized in that it is provided; an oxygen pad through which gas required for the user's breathing is discharged in response to inhalation.

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