CN201139882Y - air filter respirator - Google Patents

Abstract

The utility model relates to an air filtering respirator, comprising a mask body, a filter component, a mouth ventilation component, a nose ventilation component and a strap component, wherein an air exchange cavity is arranged in the mask body, and the air exchange cavity is connected with the nasal cavity and oral cavity of the human body through the nose ventilation component and the mouth ventilation component, and the air exchange cavity can diffuse the waste gas exhaled by the human body first, and then discharge it outward through the filter component, so that the human body is not only comfortable to wear and breathe smoothly, but also effectively avoids the gas exhaled by the human body rebounding and hitting the skin near the mouth and nose of the human body, and also avoids the formation of water vapor and heat on the inner side of the mask close to the human body, causing discomfort to the human skin. In summary, the utility model has the characteristics of being easy to use and comfortable, and can be widely used in various people who need to use masks, such as medical staff, factory workers, etc.

Description

air filter respirator

technical field

The utility model relates to the technology in the field of human breathing air filtration, in particular to an air filtration breathing mask.

Background technique

Existing common respirator basically is to be sandwiched cotton layer or filter layer between multi-layer breathable gauze, by gauze layer and filter layer dust, impurity, harmful germ etc. in the air are filtered and then enters the human mouth, nose and respiratory tract. However, because the ordinary mask is close to the mouth, nose and face of the human body, the exhaled gas usually has a certain speed and contains some water and heat during the breathing process, so the exhaled gas often hits the mask. A part will bounce back and hit the skin near the mouth and nose of the human body, and the other part will gather water vapor on the mask and make the mask generate a certain amount of heat, which will bring heat to the skin near the mouth and nose of the human body. Wearing it for a long time may even cause skin damage. Especially sticking too close, often makes people feel uncomfortable and difficult to breathe.

Utility model content

The utility model aims at the defects existing in the prior art, and the main purpose is to provide an air filter breathing mask which is comfortable to wear and smooth to breathe.

In order to achieve the above object, the utility model adopts the following technical solutions:

An air filtering respirator comprising

A cover with an air exchange cavity, the inner side of the cover is provided with vents, the outer side is provided with a plurality of air holes, and the upper part of the cover is also provided with an opening. The exchange cavity is connected;

A filter component, the filter component is closely attached to the outer surface of the aforementioned cover body, and covers each air inlet and outlet hole;

A mouth ventilation part, which is detachably embedded on the ventilation port inside the cover body, the mouth ventilation part is provided with a breathing hole, and the breathing hole communicates with the aforementioned ventilation port;

A nasal ventilation part, the nasal ventilation part is pivotally connected in the aforementioned opening, its upper end communicates with the nasal cavity of the human body, and its lower end communicates with the aforementioned air exchange cavity;

A strap part, the strap part is connected on the cover body.

The cover body is composed of an arc-shaped outer shell and an arc-shaped inner shell whose peripheries are connected and hermetically sealed. The aforementioned openings and air inlet and outlet holes are set on the arc-shaped outer shell, while the air vents are opened on the arc-shaped inner shell.

The filter element is gauze or cotton.

The periphery of the breathing hole on the inside of the ventilating part of the mouth is slightly raised outwards, and is a structure adapted to the shape of the mouth of a human body.

The mouth ventilation part is arc-shaped, and there is a gap for elastic deformation between its left and right ends and the inner side of the cover body.

A pivot hole is respectively provided on the inner side walls of the opening, and a tenon is respectively provided on both sides of the lower part of the nasal ventilation part correspondingly. The tenon is embedded in the aforementioned pivot hole and is rotatable with the pivot hole. Clearance fit.

The nasal ventilation part includes a rotating shaft part and a nasal breathing pipe, the nasal breathing pipe is detachably embedded in the rotating shaft part, and the aforementioned tenon is arranged on the rotating shaft part.

There is a tight fit between the nasal breathing tube and the shaft part, which can slide up and down and be positioned.

The upper end surface of the nasal breathing duct is in a concave shape, and is a structure adapted to the shape of the nostrils of the human body.

Compared with the prior art, the utility model has the beneficial effect that an air exchange cavity is arranged in the cover body, and a nose ventilation part and a mouth ventilation part are arranged respectively so that the air exchange cavity communicates with the nasal cavity and the oral cavity of the human body. The air exchange cavity can diffuse the exhaust gas exhaled by the human body first, and then discharge it to the outside. This not only makes the human body comfortable to wear and breathes smoothly, but also effectively prevents the exhaled gas from rebounding and hitting the mouth and nose of the human body. On the nearby skin, it also avoids forming water vapor and heat on the inside of the mask close to the human body and causing discomfort to the human skin.

To sum up, the utility model has the characteristics of convenient use and comfort, and can be widely applied to various groups of people who need masks, such as medical staff and factory workers.

Description of drawings

Fig. 1 is the combined three-dimensional state diagram of the utility model;

Fig. 2 is a three-dimensional exploded view of the utility model;

Fig. 3 is a sectional view of the utility model.

Explanation of the accompanying drawings:

10. Cover body 11. Curved outer shell 12. Curved inner shell

13. Air exchange cavity 14. Air vent 15. Air inlet and outlet holes

16. Opening 16a. Pivot hole

20. Nasal ventilation part 21. Shaft part 21a, Tenon

22. Nasal breathing tube

30. Mouth ventilation part 30a, breathing hole 30b, periphery

40. Filter parts 50. Lace parts

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described:

Referring to FIGS. 1 to 3 , the specific structure of the embodiment of the present invention is shown, including a cover body 10 , a nasal ventilation part 20 , a mouth ventilation part 30 , a filter part 40 and a strap part 50 .

Wherein, the cover body 10 is made of thin sheet plastic material into a sheet-shaped arc-shaped structure, which can be deformed as required to fit the face of the human body. The cover body 10 is composed of an arc-shaped outer shell 11 and an arc-shaped inner shell 12 whose peripheries are connected and airtightly assembled, and an air exchange cavity 13 is formed between the arc-shaped outer shell 11 and the arc-shaped inner shell 12 . The arc-shaped inner shell 12 is in direct contact with the face of the human body, and a vent 14 facing the mouth of the human body is provided in the middle; the arc-shaped shell 11 faces the outside air, and the arc-shaped shell 11 is densely covered with a plurality of air holes 15 for entering and exiting. The air hole 15 is convenient for the normal flow of air inhalation and discharge. There is an opening 16 facing upward in the middle of the upper part of the arc-shaped housing 11 , and a pivot hole 16a is respectively provided on the left and right side walls of the opening 16 .

A filter member 40 is closely attached to the outer surface of the arc-shaped housing 11, and this filter member 40 can adopt various materials such as gauze, cotton, etc. that can filter and purify the air.

The nasal ventilation part 20 is pivotally connected to the opening 16 of the arc-shaped housing 11, the nasal ventilation part 20 is an elbow-shaped structure, and the nasal ventilation part 20 includes a nasal breathing channel 22 and a rotating shaft part 21 , the nasal breathing duct 22 is detachably embedded in the rotating shaft part 21, and the nasal breathing duct 22 and the rotating shaft part 21 are in a tight fit that can slide up and down and positioned, and the up and down of the nasal breathing duct 22 The moving range A is optimal within 20mm. The upper end of the nasal breathing duct 22 communicates with the nostrils of the human body, and the upper end surface of the nasal breathing duct 22 is in a concave shape. Of course, the nasal breathing duct 22 can be replaced with other shapes that match the shape of the human nostrils to suit the human body. More people with different nose shapes; the left and right sides of the shaft part 21 are each provided with a tenon 21a, and the tenon 21a is inserted into the pivot holes 16a on both sides of the aforementioned opening 16 and formed with the pivot holes 16a. The rotatable clearance fit, whereby the nasal ventilation part 20 can rotate around the pivot hole 16a to adjust the angle B of the nasal ventilation part 20, and the swing range of the angle B is 30 degrees.

The mouth ventilation part 30 is detachably embedded on the vent 14 of the aforementioned arc-shaped inner shell 12. The mouth ventilation part 30 is also a sheet-shaped arc-shaped structure. There is a gap for elastic deformation between them; the middle part is a breathing hole 30a for gas circulation, one end of the breathing hole 30a communicates with the human oral cavity, and the other end communicates with the aforementioned air exchange cavity 13 . The inner side of the mouth ventilation part 30 is in contact with the mouth of the human body, so the periphery 30b of the breathing hole 30a in the middle part of the inner side is slightly tilted outward, and is a structure adapted to the shape of the human mouth. The strap part 50 includes two straps, which are fixedly connected to both sides of the cover body 10, and are used to fix the air filter breathing mask of the present utility model on the head of a human body.

The key point of the utility model is that an air exchange cavity is arranged in the cover body, and a nose ventilation part and a mouth ventilation part are respectively arranged to communicate the air exchange cavity with the nasal cavity and the oral cavity of the human body, and the air exchange cavity can exhale the human body The exhaust gas diffuses first, and then is discharged outward, which not only makes the human body comfortable to wear and breathes smoothly, but also effectively prevents the exhaled gas from bouncing back and hitting the skin near the mouth and nose of the human body, and also prevents the human body from being damaged. Moisture and heat are formed on the inside of the mask that is close to the human body and cause discomfort to the human skin. The utility model has the characteristics of convenient use and comfort, and can be widely applied to various groups of people who need masks, such as medical staff and factory workers.

The above is only a preferred embodiment of an air filter breathing mask of the present utility model, and does not limit the technical scope of the present utility model. Amendments, equivalent changes and modifications all still belong to the scope of the technical solution of the present utility model.

Claims (9)

1, a kind of air filtration respirator is characterized in that: comprise

One has the cover body of air exchange cavity, and this cover body medial surface is provided with blow vent, and lateral surface is provided with a plurality of air inlet/outlets, and this cover body top also is provided with an opening, and this opening, blow vent and air inlet/outlet all are communicated with the air exchange cavity;

One filter element, this filter element are close to outside the aforementioned cover body on the side surface, and cover each air inlet/outlet;

One mouth ventilation member, it is flush-mounted in the mode that can disconnect on the blow vent of aforementioned cover body inboard, and this mouth ventilation member is provided with spiracle, and this spiracle communicates with aforementioned blow vent;

One nose ventilation member, this nose ventilation member is articulated in the aforementioned opening, and its upper end is communicated with the human body nasal cavity, and the lower end is communicated with aforementioned air exchange cavity;

One tie, this tie is connected on the cover body.

2, air filtration respirator according to claim 1, it is characterized in that: described cover body is formed by the airtight assembly of joining of the periphery of arc shell and arc inner casing, aforementioned opening and air inlet/outlet are opened on the arc shell, and blow vent is opened on the arc inner casing.

3, air filtration respirator according to claim 1 is characterized in that: described filter element is gauze or cotton.

4, air filtration respirator according to claim 1 is characterized in that: the slightly outside perk of periphery of the spiracle of described mouth ventilation member inboard, and be and the suitable structure of human body mouth shape.

5, air filtration respirator according to claim 1 is characterized in that: described mouth ventilation member is curved, and has between its two ends, left and right sides and the cover body inboard and can supply elastically-deformable gap.

6, air filtration respirator according to claim 1, it is characterized in that: respectively be provided with a pivoted hole on described opening two madial walls, respectively be provided with a tenon in both sides, nose ventilation member bottom accordingly, this tenon is embedded in the aforementioned pivoted hole, and becomes rotating matched in clearance with pivoted hole.

7, air filtration respirator according to claim 1, it is characterized in that: described nose ventilation member comprises a rotating axis component and a nose corrugated hose, the nose corrugated hose is flush-mounted in the rotating axis component in removable mode, and aforementioned tenon is located on the rotating axis component.

8, air filtration respirator according to claim 7 is characterized in that: the tight fit for sliding up and down and locate between described nose corrugated hose and the rotating axis component.

9, according to claim 7 or 8 described air filtration respirators, it is characterized in that: described nose corrugated hose upper surface is a concave shape, and is and the suitable structure of the nostril form of human body.

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