CN219001801U

CN219001801U - Novel prevent particulate matter respirator

Info

Publication number: CN219001801U
Application number: CN202222334956.8U
Authority: CN
Inventors: 杨军; 朱荟; 吴杨勇; 薛齐品
Original assignee: Shanghai Huyou Environmental Protection Technology Co ltd
Current assignee: Shanghai Huyou Environmental Protection Technology Co ltd
Priority date: 2022-09-02
Filing date: 2022-09-02
Publication date: 2023-05-12
Anticipated expiration: 2032-09-02

Abstract

The utility model discloses a novel particulate matter prevention respirator, which comprises a mask main body and at least one dust filtering box; the mask body comprises at least one exhalation valve assembly and air inlets, and the number of the air inlets is the same as that of the dust filter boxes; the dust filtering box is connected with the air inlet; wherein, the dust filtration box adopts a particle dust filtration box and is internally provided with an activated carbon filling structure. The utility model adopts the structural design of the particulate matter dust filtering box, and the dust filtering box is internally provided with the structure for filling the activated carbon, so that the high activated carbon filling amount can be realized, and the long-time peculiar smell preventing function can be realized while the particulate matter preventing function is ensured.

Description

Novel prevent particulate matter respirator

Technical Field

The utility model relates to the technical field of protective articles, in particular to a novel particulate matter prevention respirator.

Background

There are many work environments in which workers are required to wear particulate matter resistant respirators for respiratory protection, such as coal mine workers, welding workers, and others who work in environments where particulate matter contaminants are present. Many times, there are also gaseous contaminants such as benzene vapor, sulfur dioxide, etc. in the environment where these particulate contaminants are present. When the concentration of gaseous contaminants in a particulate contaminated environment reaches or exceeds professional contact limits, it is desirable to wear personal respiratory protection articles to the personnel that are capable of protecting both the particulate and the combination of dust and toxins of the gaseous contaminants. However, at some time, the concentration of the gaseous pollutants in the particulate polluted environment is lower than the professional contact limit value, and if the personal respiratory protection articles combined with dust and toxin are still provided for the tool staff, excessive protection is generated, so that resource waste is caused, and the comfort of wearing the respiratory protection articles by the user is reduced. However, most of these gases below the professional contact limit concentration have unpleasant odors that cannot be eliminated by conventional particulate-proof respirators alone, and particulate-proof respirators with an odor-proof function are now a good choice.

Particulate-resistant respirators in general can be designed as disposable, i.e., conventional masks and reusable structures that are fitted with particulate filter cotton. The odor-resistant function is realized by adding a layer of non-woven fabric loaded with active carbon into a mask or a particulate filter cotton, wherein the active carbon can adsorb or absorb the gaseous pollutants. However, the amount of the non-woven fabric loaded with the activated carbon is limited due to the effective area of the mask and the particulate filter cotton, so that the amount of the activated carbon is limited. The active carbon attaching capacity of the particulate matter respirators with the peculiar smell preventing function, which are mainstream in the market at present, is generally 1-6g, and most of the active carbon attaching capacity is concentrated at 1-3g. The low-carbon-content anti-odor function can only be guaranteed in a short time, workers cannot be supported in many cases to work in the environment for one shift, and new masks or filter cotton needs to be replaced frequently, so that the working efficiency is greatly reduced.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides a novel particulate matter prevention respirator, which adopts the structural design of a particulate matter dust filtering box, and the dust filtering box is internally provided with a structure filled with active carbon, so that the high active carbon filling amount can be realized, and the long-time peculiar smell prevention function is realized while the particulate matter prevention function is ensured.

A novel particulate matter preventing respirator comprises a mask main body and at least one dust filtering box;

the mask body comprises at least one exhalation valve assembly and an air inlet, and the number of the air inlets is the same as that of the dust filter boxes;

the dust filtering box is connected with the air inlet;

wherein, the dust filtration box adopts a particle dust filtration box and is internally provided with an activated carbon filling structure.

Preferably, the dust filtering box comprises an upper cover, a lower box body and a middle partition plate;

the middle partition plate is arranged in the lower box body and divides the lower box body into an upper box body and a lower box body;

a circle of limiting protrusions are arranged at the layering positions of the upper box body and the lower box body and used for fixing the middle partition plate;

the thickness of the box wall of the lower box body is larger than that of the box wall of the upper box body;

the upper cover is connected with the lower box body in a connecting mode comprising mechanical connection, ultrasonic connection and thermal bonding connection.

Further, an air guide groove is formed in the bottom of the lower box body;

a non-woven fabric is covered on the air guide groove;

the non-woven fabrics are connected with the plastic parts of the air guide grooves in an ultrasonic connection and thermal bonding connection mode.

Further, activated carbon is filled in the lower box body;

the activated carbon is filled to be flush with the upper port of the lower box body.

Further, the intermediate baffle structure comprises a ventable grid structure;

one side of the middle partition board is connected with and covered with non-woven fabrics;

the middle partition plate with one side covered with non-woven fabric is fixedly connected with the limiting protrusion and compresses activated carbon filled in the lower box body.

Further, the interior of the upper box body is filled with a particulate filtering material;

the particulate matter filtering material is folded to form a filtering body;

the particulate matter filtering material comprises glass fibers and melt-blown non-woven fabrics;

the edge of the filter body is connected with the inner wall of the upper box body to form a seal.

Further, the air inlet is provided with a buckle;

a clamping groove is designed at the outer side of the lower box body;

the air inlet is connected with the clamping groove of the lower box body through the buckle.

Preferably, the respirator further comprises a headgear wear component and a face seal component;

the headband wearing part and the face sealing part are respectively connected with the mask main body;

the headband wearing part is used for wearing and fixing the mask main body;

the face seal member is used for being worn in a sealing manner by the mask body;

wherein the face seal member includes a full face coverage and a half face coverage.

The utility model has the technical effects and advantages that:

1. according to the novel particulate matter preventing respirator, the structure filled with the active carbon is arranged in the dust filtering box, so that the odor preventing effect is remarkably improved compared with that of a common active carbon loaded respirator;

2. according to the novel particulate matter prevention respirator, the structure filled with the active carbon is arranged in the dust filtering box, and the odor prevention duration is obviously prolonged compared with that of a common active carbon loaded respirator.

Drawings

In order to more clearly illustrate the embodiments of the present utility model 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. Like elements or portions are generally identified by like reference numerals throughout the several figures.

FIG. 1 is a schematic illustration of a main body of a novel particulate-resistant respirator of the present utility model;

FIG. 2 is a schematic illustration of the attachment of a mask body to a dust box in a novel anti-particulate respirator;

FIG. 3 is a side view of a dust box in a novel anti-particulate respirator of the present utility model;

FIG. 4 is a schematic diagram of a lower box of a novel particulate matter resistant respirator;

FIG. 5 is a schematic illustration of the connection of the lower shell and the intermediate baffle in a novel anti-particulate respirator;

FIG. 6 is a schematic illustration of an intermediate baffle in a novel anti-particulate respirator;

FIG. 7 is a schematic illustration of an upper cover of a novel anti-particulate respirator.

In the attached drawings, 1, a mask main body, 2, an exhalation valve assembly, 3, a buckle, 4, a dust filtering box, 5, an upper cover, 6, a lower box body, 7, a middle partition board, 8, a clamping groove, 9, a limiting protrusion, 10 and an air guide groove.

Detailed Description

The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.

It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

Example 1

A novel particle-proof respirator, which comprises a mask main body 1 and at least one dust filtering box 4;

as shown in fig. 1, the mask body 1 includes at least one exhalation valve assembly 2 and an air inlet, in this embodiment, the number of exhalation valve assemblies 2 and air inlets is two, and the exhalation valve assemblies 2 and air inlets are respectively disposed at the left and right ends of the mask body 1, and the number of exhalation valve assemblies 2 and air inlets are the same as the number of dust filter boxes 4, and the number of exhalation valve assemblies 2, air inlets and dust filter boxes 4 can be increased or decreased as required under different use environments;

as shown in fig. 1, a buckle 3 is arranged on the air inlet;

as shown in fig. 4, a clamping groove 8 is designed on the outer side of the lower box body 6;

the air inlet is connected with the clamping groove 8 of the lower box body 6 through the buckle 3, so that connection and conduction between the dust filtering box 4 and the air inlet are realized; an exhalation valve assembly 2 for forming a seal at the junction of the air inlet and the dust box 4;

wherein, the dust filtering box 4 adopts a particle dust filtering box and is internally provided with an activated carbon filling structure.

The dust filtering box 4 comprises an upper cover 5, a lower box body 6 and a middle partition plate 7;

as shown in fig. 5, the middle partition 7 is disposed inside the lower case 6 and divides the lower case 6 into an upper case and a lower case;

as shown in fig. 4, a circle of limiting protrusions 9 are arranged at the layering positions of the upper box body and the lower box body and used for fixing the middle partition plate 7, the size range of the limiting protrusions 9 is 0.1-5mm in width, 0.1-5mm in depth and 0.1-5mm in wall thickness;

the upper cover 5 is connected with the lower box body 6 in a manner including mechanical connection, ultrasonic connection and thermal bonding connection, and in this embodiment, the upper cover 5 is mechanically connected with the lower box body 6, and a connecting component is arranged on the upper cover 5 and the lower box body 6.

Depending on the manner of the combination, the top of the upper cover 5 of the dust-filtering box 4 can be designed into a grid structure with an air inlet grid or a structure without an air inlet grid, but a structure or a gap with air inlet can be formed through the periphery of the combination.

The bottom in the lower box body is provided with an air guide groove 10;

a non-woven fabric is covered on the air guide groove 10;

the non-woven fabric is connected with the plastic part of the air guide groove 10 in a mode of ultrasonic connection, thermal bonding connection and the like.

Activated carbon is filled in the lower box body, and the type of the activated carbon can be selected according to the type of the peculiar smell gas to be protected. The filling amount of the activated carbon can be realized by designing the volumes of different lower-layer box bodies according to the use requirement, and the activated carbon with sufficient filling density can obviously improve the odor-preventing effect of the utility model;

the activated carbon filled in the lower box body is filled to be flush with the upper port of the lower box body.

The intermediate partition 7 is designed as a grid structure or other ventilation structure which can be ventilated. One side of the middle partition 7 is covered with non-woven fabrics, the non-woven fabrics are combined with the middle partition 7 in an ultrasonic mode, a thermal bonding mode or other modes, the side of the middle partition 7 covered with the non-woven fabrics is combined with the upper port of the lower box body in an ultrasonic mode, the thermal bonding mode or other modes, and then when the middle partition 7 is fixed on the limiting boss 9, compression of filling activated carbon can be formed, the activated carbon is tightly filled, and the protection effect is guaranteed.

Filling the lower box body, fixing the lower box body through the middle partition plate 7, and filling the upper box body, wherein the interior of the upper box body is filled with a particulate filtering material;

the particulate matter filtering material is subjected to folding treatment to form a filtering body, and the folding height and the folding number of the filtering material are designed according to the particulate matter protection grade which is realized as required and the performance of the selected filtering material;

the particulate matter filtering material comprises glass fiber, melt-blown non-woven fabrics and the like;

the edge of the filter body is connected with the inner wall of the upper box body in a hot melt adhesive mode to form a seal.

The respirator also includes a headgear wear component and a face seal component;

the headband wearing part and the face sealing part are respectively connected with the mask body 1;

the headband wearing part is used for a user to wear and fix the mask body 1 on the face;

the face sealing component can be designed into a half mask for covering the mouth and the nose according to different use environments, and can also be designed into a full mask for covering the eyes, the mouth and the nose, so that a user can wear the face sealing component for a long time more comfortably and can closely fit the face of the user. Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.

Claims

1. The novel particulate matter preventing respirator is characterized by comprising a mask main body and at least one dust filtering box;

the mask body comprises at least one exhalation valve assembly and an air inlet, wherein the number of the air inlets is the same as that of the dust filter boxes;

the dust filtering box is connected with the air inlet;

wherein, the dust filtering box adopts a particle dust filtering box and is internally provided with an activated carbon filling structure;

the dust filtering box comprises an upper cover, a lower box body and a middle partition plate;

2. The novel particulate matter preventing respirator of claim 1, wherein the bottom of the lower case is provided with an air guide groove;

a non-woven fabric is covered on the air guide groove;

3. The novel particulate matter preventing respirator of claim 1, wherein the lower cartridge is filled with activated carbon;

4. A novel particulate matter preventing respirator according to claim 3 wherein the intermediate baffle structure comprises a ventable grid structure;

5. The novel particulate resistant respirator of claim 1 wherein the upper box body is filled with particulate filter material;

the particulate matter filtering material is folded to form a filtering body;

6. The novel particulate resistant respirator of claim 1 wherein the air inlet is provided with a catch;

a clamping groove is designed at the outer side of the lower box body;

7. The novel particulate-resistant respirator of claim 1, further comprising a headgear wear component and a face seal component;

the headband wearing part is used for wearing and fixing the mask main body;