CN113521472A

CN113521472A - Nose respirator

Info

Publication number: CN113521472A
Application number: CN202010289850.3A
Authority: CN
Inventors: 赵丽萍; 张耀杰
Original assignee: BEIJING RONGRUI CENTURY TECHNOLOGY CO LTD
Current assignee: BEIJING RONGRUI CENTURY TECHNOLOGY CO LTD
Priority date: 2020-04-14
Filing date: 2020-04-14
Publication date: 2021-10-22

Abstract

The invention discloses a nasal respirator, which comprises a respirator body, wherein the respirator body is connected with an air inlet pipe, the respirator body is also provided with an air outlet hole and a rotatably arranged air sheet, the air sheet can cover the air outlet hole from the outer side in the air suction process, and the air sheet can be turned outwards to expose the air outlet hole in the air expiration process. Adopt above-mentioned structure, be equipped with on the respirator body and can exhale along with the wearer, breathe in and the self-rotation's air film, when breathing in, receive the atmospheric pressure effect, the air film can cover the venthole from the outside, this one side can avoid admitting air to leak, on the other hand, also can avoid sneaking into of outside air, with the purity of guaranteeing the wearer inhalation gas better, and when exhaling, this internal gas pressure increase of respirator, can force the air film outwards to overturn, and then expose the venthole, so that the gas of breathing out of wearer is discharged.

Description

Nose respirator

Technical Field

The invention relates to the technical field of respirators, in particular to a nasal respirator.

Background

Nasal respirators such as nasal pillows, nasal masks can carry out the shutoff to user's nostril, and the confession nostril is breathed admits air and is given vent to anger and can be in same cavity, if directly set up the venthole on the chamber wall of cavity, can probably lead to letting in revealing of air, lead to extravagantly.

Therefore, how to provide a solution to overcome the above-mentioned drawbacks remains a technical problem to be solved by those skilled in the art.

Disclosure of Invention

The invention aims to provide a nasal respirator which can effectively avoid leakage of inlet air at an air outlet and can timely discharge exhaled air so as to avoid secondary inhalation of waste gas caused by mixing of the exhaled air and the inlet air as far as possible.

In order to solve the technical problems, the invention provides a nasal respirator, which comprises a respirator body, wherein the respirator body is connected with an air inlet pipe, the respirator body is also provided with an air outlet hole and a rotatably arranged air sheet, the air sheet can cover the air outlet hole from the outer side in the air suction process, and the air sheet can be turned outwards to expose the air outlet hole in the air expiration process.

Adopt above-mentioned structure, be equipped with on the respirator body and can exhale along with the wearer, breathe in and the self-rotation's air film, when breathing in, receive the atmospheric pressure effect, the air film can cover the venthole from the outside, this one side can avoid admitting air to leak, on the other hand, also can avoid sneaking into of outside air, with the purity of guaranteeing the wearer inhalation gas better, and when exhaling, this internal gas pressure increase of respirator, can force the air film outwards to overturn, and then expose the venthole, so that the gas of breathing out of wearer is discharged.

That is to say, the nasal respirator provided by the invention not only can effectively avoid the leakage of the air inlet at the air outlet, but also can timely discharge the exhaled air so as to avoid the phenomenon of secondary inhalation of waste gas caused by the mixing of the exhaled air and the air inlet as far as possible.

Optionally, the air flap is of unitary construction with the respirator body.

Optionally, the air sheet is a separate component, and one end of the air sheet is connected with the respirator body through a hinge shaft; still include the elastic component, the elastic component acts on the gas piece, the process that the gas piece outwards overturns is the process that the elastic component deflection increases.

Optionally, the air outlet is arranged opposite to the outlet airflow.

Optionally, the respirator further comprises a side wing connecting belt, the side wing connecting belt is connected with the respirator body, and the side wing connecting belt is provided with a plurality of air holes.

Optionally, the inner belt surface of the side wing connecting belt is provided with a ventilation groove, and one ventilation groove is communicated with more than two ventilation holes.

Optionally, the number of the side wing connecting bands is two, the two side wing connecting bands are respectively arranged on two sides of the respirator body, each side wing connecting band is provided with one ventilation groove, and the ventilation grooves are communicated with the ventilation holes of the side wing connecting band where the ventilation grooves are located.

Optionally, the inner strap face of the part of the side connecting strap close to the respirator body is provided with a notch groove; and/or a notch groove is formed in the inner side face of the part, close to the side wing connecting belt, of the respirator body.

Optionally, the respirator body comprises a split type cover part and a nose connecting part, the nose connecting part is provided with two nasal tubes, the cover part is provided with the air outlet hole, and the nose connecting part is clamped in the cover part in a sealing mode so as to form an air cavity in a surrounding mode.

Optionally, one of the outer edge of the cover part and the outer edge of the nose part is provided with a clamping block, and the other is provided with an annular clamping groove, and the clamping block is clamped in the clamping groove; one of the cover part and the nose connecting part is provided with a clamping hook, the other one is provided with a clamping hole, and the clamping hook can be clamped in the clamping hole; and the cover part and the side wing connecting belt are integrated parts, the clamping hook is arranged on the nose connecting part, the clamping hole is arranged on the integrated part, and the notch groove is formed in a hole section of the clamping hole close to the inner side.

Drawings

FIG. 1 is a schematic view of the configuration of the air scoop and air flap of a nasal respirator provided in accordance with the present invention;

FIG. 2 is a schematic view of the air flow within the nasal respirator when the air flap is an integral part of the respirator body;

FIG. 3 is a schematic view of the air flow within the nasal respirator when the air flap is hinged to the respirator body;

FIG. 4 is a schematic structural view of one embodiment of a respirator provided in accordance with the present invention;

FIG. 5 is a cross-sectional view of FIG. 4;

FIG. 6 is a drawing showing the connection of the cover portion to the side wing connection straps;

FIG. 7 is a schematic view of the nose portion;

figure 8 is a diagram of the connection of the nose and mask portions.

The reference numerals in fig. 1-8 are illustrated as follows:

1, a respirator body, a cover part 11, a 111 air inlet, a 112 clamping groove, a 113 clamping hole, a 114 air outlet, a 115 air sheet, a 115a hinge shaft, a 12 nose connecting part, a 121 nose pipe, a 122 clamping block and a 123 clamping hook;

2 side wing connecting bands, 21 air holes, 22 air holes and 23 notch grooves.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

As used herein, the term "plurality" refers to an indefinite number of plural, usually more than two; and when the term "plurality" is used to indicate a quantity of a particular element, it does not indicate a quantitative relationship between such elements.

Referring to fig. 1-3, fig. 1 is a schematic view of the structure of an air inlet and an air sheet of a nasal respirator provided by the present invention, fig. 2 is a schematic view of the air flow in the nasal respirator when the air sheet and the respirator body are an integral part, and fig. 3 is a schematic view of the air flow in the nasal respirator when the air sheet is hinged to the respirator body.

As shown in the figure, the invention provides a nasal respirator, which comprises a respirator body 1, wherein an air inlet pipe is connected to the respirator body 1, the respirator body 1 is also provided with an air outlet hole 114 and a rotatably arranged air sheet 115, the air sheet 115 can cover the air outlet hole 114 from the outside in the inspiration process, and the air sheet 115 can be turned outwards to expose the air hole 114 in the expiration process.

By adopting the structure, the respirator body 1 is provided with the air sheet 115 which can rotate automatically along with the expiration and inspiration of a wearer, when the respirator body inhales, the air sheet 115 can cover the air outlet 114 from the outer side under the action of atmospheric pressure (or other acting force, see the following description specifically), so that on one hand, air inlet leakage can be avoided, on the other hand, the mixing of outside air can also be avoided, the purity of the inhaled air of the wearer can be better ensured, and when the respirator body 1 exhales, the air pressure in the respirator body 1 is increased, the air sheet 115 can be forced to turn outwards, and the air outlet 114 is exposed, so that the exhaled air of the wearer can be exhausted.

That is, the nasal respirator provided by the invention can effectively avoid the leakage of the inlet air at the air outlet 114, and can timely discharge the exhaled air, so as to avoid the phenomenon of secondary inhalation of waste gas caused by the mixing of the exhaled air and the inlet air as much as possible.

In one scheme, as shown in fig. 1 and 2, the air sheet 115 and the respirator body 1 may be an integral structure, and at this time, the air sheet 115 may have certain elasticity, and when no external force acts, the air sheet 115 may naturally cover the air outlet hole 114.

During expiration, the air pressure in the respirator body 1 can be increased to overcome the elasticity of the air sheet 115 and the external atmospheric pressure, and the air sheet 115 is forced to turn over, so that the air holes 114 are exposed; during inhalation, the elastic force gathered by the air sheet 115 can be released to match the external atmospheric pressure to drive the air sheet 115 to reset.

In another alternative, as shown in FIG. 3, the air flap 115 may be a separate component, one end of which may be connected to the respirator body 1 by a hinge 115 a.

At this time, in order to ensure that the air sheet 115 is in a covering state with respect to the air outlet 114 in a normal state, an elastic member (not shown in the figure) may be further provided to act on the air sheet 115, and the process of turning the air sheet 115 outward is a process of increasing the deformation amount of the elastic member to gather the elastic force.

Specifically, the elastic member may be a tension spring or a tension rope, and one end of the elastic member may be connected to the air sheet 115, and the other end may be connected to the respirator body 1; or, the elastic element can also be a torsion spring, one extending end of the torsion spring can act with the respirator body 1, and the other extending end can act with the air sheet 115; further alternatively, the elastic member may be an elastic pressing piece integrally formed with the respirator body 1, or the like, and the elastic pressing piece may be provided above the air piece 115 and in contact with the air piece 115.

Thus, when exhaling, the air in the respirator body 1 can overcome the elastic force of the elastic member and the external atmospheric pressure, so that the air sheet 115 can be turned over to expose the air hole 114; and when inhaling, the air flap 115 can naturally turn over under the action of the elastic force of the elastic member and the external atmospheric pressure to re-cover the air outlet hole 114.

In fact, the elastic member can be in a pre-deformed state in a normal state, so that the compressing effect of the air sheet 115 on the air outlet 114 can be ensured, and the air tightness can be further ensured.

In comparison, the two schemes described above can achieve automatic eversion and repositioning of the air flap 115, and in particular, the skilled person can select the scheme according to actual needs. Preferably, the air flap 115 is integrally formed with the respirator body 1, which is relatively simple in construction.

It should be noted that, in the embodiment of the present invention, the corresponding relationship between the air flaps 115 and the air outlets 114 is not limited, and the air flaps 115 and the air outlets 114 may be arranged in a one-to-one correspondence manner, that is, one air flap 115 only covers one air outlet 114, or the air flaps 115 and the air outlets 114 may also be in a one-to-many relationship, that is, one air flap 115 may cover a plurality of air outlets 114 at the same time.

Further, the position of the air outlet hole 114 can be opposite to the air outlet flow, so that the mixing of the air outlet flow and the air inlet flow can be better avoided. In particular practice, the location of the exit orifice 114 may be determined in conjunction with related simulation experiments.

Referring to fig. 4-8, fig. 4 is a schematic structural view of an embodiment of a nasal respirator of the present invention, fig. 5 is a sectional view of fig. 4, fig. 6 is a schematic structural view of a connection structure of a mask portion and a side wing connection strap, fig. 7 is a schematic structural view of a nose-engaging portion, and fig. 8 is a schematic structural view of a connection structure of a nose-engaging portion and a mask portion.

As shown in fig. 4 and 5, the nasal respirator provided by the invention further comprises a side connecting belt 2 connected with the respirator body 1, and the side connecting belt 2 is provided with a plurality of air holes 21, which is different from the prior art.

So set up, each bleeder vent 21 all can form ventilative passageway, can be used to exhaust gas and sweat, like this, when wearing for a long time, is difficult for sealing sweat between flank connecting band 2 and the person's of wearing face, can avoid the person's of wearing face phenomenon such as ruddy, allergy to a great extent to appear, and then can promote the use experience of the person of wearing.

Here, the structural shape and arrangement of the air holes 21 are not limited in the embodiments of the present invention, and those skilled in the art can set the configuration according to actual needs when implementing the present invention. Specifically, the air holes 21 may be constant diameter holes or variable diameter holes, such as stepped holes or tapered holes, and the axes of the air holes 21 may be perpendicular to the belt surface of the side connection belt 2 or may be disposed at other angles.

The inner belt surface of the side wing connecting belt 2 can be also provided with ventilating grooves 22, one ventilating groove 22 can be communicated with more than two ventilating holes 21, the range of the ventilating channel can be further expanded, more areas of the face of a wearer can be covered by the ventilating channel, and the facial sweat of the wearer can be discharged more conveniently.

As used herein, references to "inner" and "outer" orientations refer to the position of the element relative to the face of a user, with respect to either element, the side that is relatively closer to the face being the inner side and the side that is relatively farther from the face being the outer side.

The number of the side wing connecting bands 2 can be two, the two side wing connecting bands 2 can be respectively arranged at two sides of the respirator body 1, each side wing connecting band 2 can be provided with a ventilation groove 22, and the ventilation grooves 22 and the ventilation holes 21 of the side wing connecting bands 2 at the positions of the ventilation grooves 22 can be communicated, so that the range of ventilation channels of the two side wing connecting bands 2 is expanded to the maximum extent.

In addition, one or more than three side wing connection straps 2 may be used, and in this case, each side wing connection strap 2 may be provided with the ventilation grooves 22 and the ventilation holes 21.

In addition, in the prior art, the side wing connecting belt and the respirator body are directly connected, an avoiding structure is not arranged between the side wing connecting belt and the respirator body, and when a patient wears the respirator, the side wing connecting belt is pulled to enable the side wing connecting belt to be attached to the face tightly.

In this regard, in the embodiment of the present invention, a notch groove 23 may be provided on the inner belt surface of the portion of the side flap connecting belt 2 close to the respirator body 1; and/or, a notched groove 23 may be provided on the inner side surface of the portion of the respirator body 1 near the side flap connecting strap 2.

In other words, the gap groove 23 can be formed in the transition connection position of the side wing connecting belt 2 and the respirator body 1, and the gap groove 23 can play a role of avoiding to avoid the glue stock accumulation at the connection position of the side wing connecting belt 2 and the respirator body 1, so that the tightness of the respirator body 1 and the mouth-nose fit of a user can be ensured, and the problems of air leakage and the like can be effectively prevented.

For each side connecting strap 2, only one notch groove 23 may be provided at the connecting transition position with the respirator body 1, or a plurality of notch grooves 23 may be provided, which may be determined according to actual conditions.

The embodiment of the invention is not limited to the type of the nose respirator, and the nose respirator can be a nose mask or a nose pillow, and compared with the nose mask, the nose pillow has an independent air cavity.

Taking the nasal pillow as an example, with reference to the accompanying drawings, the respirator body 1 may include a split type cover portion 11 and a nose connecting portion 12, the cover portion 11 may be provided with the air outlet hole 114, the nose connecting portion 12 may be provided with two nose tubes 121, and an end portion of the nose tube 121 far away from the cover portion 11 may be a tapered end portion, and when the respirator is worn, the tapered end portion may completely block a nostril of a user, so that both the inlet airflow and the outlet airflow pass through the nose tube 121.

The cover portion 11 may be provided with an air inlet 111, the air inlet 111 may be used for connecting an air inlet pipe, or the cover portion 11 may be formed integrally with the air inlet pipe, and the nose connecting portion 12 may be sealingly connected to the cover portion 11 to enclose an air chamber. The nose-engaging portion 12 and the cover portion 11 may be connected by a snap-fit connection, so that the mounting and dismounting are facilitated.

In detail, as shown in fig. 6 to 8, one of the outer edge of the cover portion 11 and the outer edge of the nose portion 12 may be provided with an annular clamping block 122, and the other may be provided with an annular clamping groove 112, when assembling, the clamping block 122 may be clamped in the clamping groove 112, and the matching manner of the clamping block 122 and the clamping groove 112 may be an interference fit, so as to ensure the sealing performance of the connection between the two. In the drawings, the latch 122 may be provided to the nose portion 12, and the latch groove 112 may be provided to the hood portion 11.

Furthermore, one of the cover portion 11 and the nose connecting portion 12 may further be provided with a hook 123, and the other may be provided with a locking hole 113, when installing, in addition to establishing the above-mentioned matching manner of the locking block 122 and the locking groove 112, the hook 123 may also be locked in the locking hole 113, so as to ensure the connection reliability of the cover portion 11 and the nose connecting portion 12.

Referring to fig. 6, the cover portion 11 and the side connection strap 2 may be an integral component, the hook 123 may be disposed on the nose portion 12, the locking hole 113 may be disposed on the integral component, and the notch 23 may be formed in a hole section inside the locking hole 113.

It will be appreciated that the rigidity of the hook 123 will be greater than at other parts of the nasal respirator, and that the contact of the side connection strap 2 with the hook 123 is actually the part most likely to cause adhesive build-up when worn. After the scheme is adopted, as shown in fig. 5, the notch groove 23 can form an avoiding structure, so that glue accumulation of the side wing connecting belt 2 at the position of the hook 123 can be avoided well.

It should be noted that the above description of the specific connection structure of the mask portion 11 and the nose-engaging portion 12 is only an exemplary description of the embodiment of the present invention, and should not be taken as a limitation on the scope of the nasal respirator provided by the present invention, and that the mask portion 11 and the nose-engaging portion 12 may be connected in other ways if they are functionally satisfactory; alternatively, the respirator body 1 may be a one-piece structure.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.

Claims

1. The nasal respirator comprises a respirator body (1), wherein an air inlet pipe is connected to the respirator body (1), and is characterized in that the respirator body (1) is further provided with an air outlet (114) and an air sheet (115) which is rotatably arranged, the air sheet (115) can cover the air outlet (114) from the outer side in the air suction process, and the air sheet (115) can be turned outwards to expose the air outlet (114) in the air expiration process.

2. The nasal respirator of claim 1, wherein the air flap (115) is of unitary construction with the respirator body (1).

3. The nasal respirator according to claim 1, characterized in that the air flap (115) is a separate part, one end of which is connected to the respirator body (1) by means of a hinge (115 a);

the gas spring is characterized by further comprising an elastic piece, wherein the elastic piece acts on the gas piece (115), and the outward overturning process of the gas piece (115) is a process of increasing the deformation of the elastic piece.

4. The nasal respirator of claim 1, wherein the outlet aperture (114) is positioned opposite the outlet flow.

5. The nasal respirator according to any one of claims 1 to 4, further comprising a side connecting strap (2), wherein the side connecting strap (2) is connected to the respirator body (1), and the side connecting strap (2) is provided with a plurality of vent holes (21).

6. The nasal respirator according to claim 5, characterized in that the inner belt surface of the side wing connecting belt (2) is provided with ventilation slots (22), and one ventilation slot (22) is communicated with more than two ventilation holes (21).

7. The nasal respirator according to claim 6, characterized in that the number of the side connecting straps (2) is two, two side connecting straps (2) are respectively arranged on two sides of the respirator body (1), each side connecting strap (2) is provided with one ventilation slot (22), and the ventilation slots (22) are communicated with the ventilation holes (21) of the side connecting strap (2) where the ventilation slots (22) are located.

8. The nasal respirator according to claim 5, wherein the inner strap face of the portion of the side flap strap (2) close to the respirator body (1) is provided with a notched slot (23); and/or the presence of a gas in the gas,

the inner side surface of the part, close to the side wing connecting belt (2), of the respirator body (1) is provided with a notch groove (23).

9. A nasal respirator according to claim 8, wherein the respirator body (1) comprises a split mask portion (11) and a nose piece (12), the nose piece (12) is provided with two nasal tubes (121), the mask portion (11) is provided with the air outlet holes (114), and the nose piece (12) is sealingly clipped to the mask portion (11) to enclose an air cavity.

10. The nasal respirator according to claim 9, wherein one of the outer edge of the hood portion (11) and the outer edge of the nose-engaging portion (12) is provided with a latch (122) and the other is provided with an annular latch groove (112), the latch (122) being latched to the latch groove (112);

one of the cover part (11) and the nose connecting part (12) is provided with a clamping hook (123), the other one is provided with a clamping hole (113), and the clamping hook (123) can be clamped in the clamping hole (113);

the cover portion (11) and the side wing connecting belt (2) are integrated, the clamping hook (123) is arranged on the nose connecting portion (12), the clamping hole (113) is arranged on the integrated component, and the notch groove (23) is formed in a hole section, close to the inner side, of the clamping hole (113).