CN111567951A - Device for improving air permeability of protective mask - Google Patents

The invention discloses a device for improving the air permeability of a protective mask, which comprises a vent pipe interface and an air exhaust mechanism, wherein the vent pipe interface consists of a flat body and a vent pipe embedded in the flat body, the flat body is made of liquid silica gel, a vent pipe body is tightly attached to the flat body, one end of the vent pipe is exposed out of the flat body or is flush with the flat body, and the other end of the vent pipe is communicated with the air exhaust mechanism. The invention can improve the air permeability of the protective mask, solve the problem of difficult breathing caused by wearing the mask for a long time, reduce the humidity in the mask, improve the wearing comfort of the protective mask and be suitable for common protective masks.

Device for improving air permeability of protective mask

Technical Field

The invention relates to the technical field of masks, in particular to a device for improving the air permeability of a protective mask.

Background

Protective masks such as N95 masks are widely used in medical and personal protection fields, and these masks generally have low air permeability and, if worn for a long time, may cause problems such as oxygen deficiency, heavy moisture in the mask, skin allergy, and the like. Although 3M company has developed devices such as cold flow valves, the problem of wearing comfort of the protective mask still cannot be effectively solved. During the period of new coronary pneumonia, medical staff can be seen to have various discomforts when wearing the protective mask for a long time.

For this reason, the prior art proposes some methods to solve the above-mentioned problems. For example, the outside air is forced into the mask by using a device, and the air in the mask is discharged through the mask outlet valve. However, this technique has a problem in that it is necessary to filter harmful substances in the air using a special filtering device before the external air is introduced into the mask, that is, it filters the air using the filtering device rather than the mask itself, and it is essentially an electronic mask. The existing electronic mask adopts a special air filtering device, although air can be filtered, the cost is high, and ozone pollution is easy to occur. In addition, in order to enjoy the benefits of the electronic mask, the user must purchase a special electronic mask, which results in that the existing protective mask such as N95 cannot be fully utilized.

Disclosure of Invention

The invention aims to provide a device for improving the air permeability of a protective mask, which aims to solve the technical problems that the common protective masks such as N95 and the like in the prior art have low air permeability and cause harm and discomfort to human bodies after being worn for a long time.

In order to solve the technical problems, the invention adopts the following technical scheme:

the utility model provides an improve device of protective mask permeability, includes breather pipe interface and air exhaust mechanism, and the breather pipe interface comprises the flat body and inlays the breather pipe of establishing in the flat internal portion, and the flat body is made by liquid silica gel, and the breather pipe shaft closely laminates with the flat body, and breather pipe one end exposes the flat body or flushes with the flat body, and the other end and air exhaust mechanism intercommunication.

Further, the device for improving the air permeability of the protective mask further comprises a sealing ring made of liquid silica gel, the shape of the sealing ring is matched with the shape of the outer edge of the protective mask, the sealing ring is of a flat structure and is composed of an upper ring surface, a lower ring surface and an outer ring side wall connecting the upper ring surface and the lower ring surface, a groove structure with a concave longitudinal section is formed by the upper ring surface, the lower ring surface and the outer ring side wall in a surrounding mode, and a notch of the groove is located on the inner ring side of the sealing ring.

In one embodiment, the upper and lower loop faces are both continuous unbroken surfaces.

In another embodiment, the lower loop side is a continuous unbroken surface and the upper loop side is a discontinuous, discontinuous surface.

Further, the thickness of the sealing ring does not exceed 1 centimeter.

Further, the flat body adopts a streamline structure.

Furthermore, a miniature air pump is arranged in the air pumping mechanism.

Further, the micro-pump is a pump capable of adjusting output power.

Furthermore, a lithium battery used for supplying power to the miniature air extracting pump is arranged in the air extracting mechanism.

Further, the air exhaust mechanism is provided with a charging interface.

Compared with the prior art, the invention has the beneficial effects that:

according to the device for improving the air permeability of the protective mask, air in the mask is extracted, the air permeability of the protective mask is improved by using a negative pressure method, any harmful substance such as ozone is not generated, the problem of difficulty in breathing caused by wearing the mask for a long time can be obviously improved, the humidity in the mask is reduced, and the wearing comfort of the protective mask is improved; liquid silica gel is used for the vent pipe interface, and the liquid silica gel is soft, has skin-friendly property and self-attaching property, is placed between the mask and the face, can attach the face well, ensures the air tightness of the mask, and meets the requirement of virus protection. The device of the invention can be suitable for common protective masks, such as N95 masks, and the like, has no special requirements on the mask specification, and enables the existing masks of users to be fully utilized. Compared with other electronic masks, the electronic mask does not need complex circuits and air purification facilities, and has the advantages of simple structure and low cost.

Drawings

FIG. 1 is a schematic view of a device for enhancing the air permeability of a respirator according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a seal ring according to an embodiment of the present invention;

FIG. 3 is a schematic view of the structure of the lower face of a seal ring according to another embodiment of the present invention;

FIG. 4 is a schematic structural view of the upper ring surface of a seal ring according to another embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view of the vent tube interface of FIG. 1;

figure 6 is a top view of the vent tube interface shown in figure 1.

Wherein, 1 is a mask; 2, sealing rings; 3, connecting a vent pipe; 4, a flexible pipe; 5, air inlet pipe; 6, an air outlet pipe; 7 a micro air pump; 8 lithium batteries; 9 power supply lines; 10 a charging interface; 11 an air extracting mechanism; 12 a vent pipe; 13 a flat body; 14, winding the upper surface; 15 lower ring surface; 16 outer ring side wall.

Detailed Description

The invention is further described with reference to specific examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

The micro air pump 7 is preferably an air pump capable of adjusting output power, and allows a user to adjust the internal pressure of the mask according to the requirement of the user.

According to the device disclosed by the invention, the air in the mask is extracted, the air permeability of the protective mask is improved by using a negative pressure method, any harmful substances such as ozone and the like are not generated, the problem of dyspnea caused by wearing the mask for a long time can be obviously improved, the humidity in the mask is reduced, and the wearing comfort of the protective mask is improved. The power of the air pump is adjustable, and a user can adjust the internal pressure of the mask according to individual requirements.

The components of the invention are all of detachable structures, thus improving the use flexibility; all components are made of durable, washable and sterilizable materials, so that the device is durable and meets the virus protection requirement.

The structure of the device in contact with the human face skin is made of liquid silica gel, so that the device has skin-friendly property and good air tightness, and can meet the requirement of virus protection.

The device of the invention can be suitable for common protective masks, such as N95 masks, and the like, has no special requirements on the mask specification, and can fully utilize the existing masks of users.

Compared with other electronic masks, the electronic mask does not need a complex circuit and air purification facilities, so the electronic mask has a simple structure and low cost.

The present invention has been disclosed in terms of the preferred embodiment, but is not intended to be limited to the embodiment, and all technical solutions obtained by substituting or converting equivalents thereof fall within the scope of the present invention.