CN111329157A

CN111329157A - Detachable dust mask

Info

Publication number: CN111329157A
Application number: CN202010299170.XA
Authority: CN
Inventors: 杨道路
Original assignee: Hefei Maoshen Trade Co Ltd
Current assignee: Hefei Maoshen Trade Co Ltd
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2020-06-26

Abstract

The invention belongs to the technical field of masks, and particularly relates to a detachable dustproof mask which comprises a mask body and a detachable filter disc fixed at the middle position of the mask body, wherein a square through hole is formed in the middle position of the mask body, and the area of the filter disc is larger than that of the square through hole; the two sides of the square through hole are provided with a plurality of sliding grooves which are symmetrically arranged and are arranged at intervals in the direction far away from the mouth and nose of a wearer, the notches of the sliding grooves on the two sides of the square through hole are opposite and are in a closed-up shape, and two ends of the filter disc are provided with hard insertion rods for being inserted into the sliding grooves from top to bottom; the filter disc with the filtering function is inserted into and covers the square through hole to filter air inhaled by a wearer, so that the utilization rate of the filtering material is greatly improved, materials are saved, and the use cost of the dust mask is reduced.

Description

Detachable dust mask

Technical Field

The invention belongs to the technical field of masks, and particularly relates to a detachable dustproof mask.

Background

The dust mask is an indispensable protective article for workers engaged in dust contact, and is mainly used in working environments containing low-concentration harmful gases and steam and working environments generating dust. The existing dustproof mask mainly comprises two types, one type is a simple mask made of only a single layer or a plurality of layers of filtering materials, the structure of the dustproof mask is simple, the dustproof mask is cheap and easy to obtain, but the dustproof effect is poor, the filtering materials have the problem of adsorption saturation, and the filtering materials need to be replaced frequently; the other type is provided with a breather valve, the design is complex, the dustproof mask has good dustproof effect, but the price is expensive, the carrying is inconvenient, and the wearing comfort is poor.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a detachable dustproof mask which is relatively simple, convenient to use and low in cost.

In order to achieve the purpose, the invention adopts the following technical scheme:

a detachable dustproof mask comprises a mask body and a detachable filter disc fixed at the middle position of the mask body, wherein a square through hole is formed in the middle position of the mask body, and the area of the filter disc is larger than that of the square through hole;

the mask body comprises arc-shaped supporting face masks positioned on the left side and the right side, arc-shaped parts which are connected with the upper edges of the arc-shaped supporting face masks on the two sides and the upper edges of which are attached to the nose wings, and chin coating parts which are connected with the lower edges of the arc-shaped supporting face masks on the two sides and extend downwards;

the two sides of the square through hole are provided with a plurality of sliding grooves which are symmetrically arranged and are arranged at intervals in the direction far away from the mouth and nose of a wearer, the notches of the sliding grooves on the two sides of the square through hole are opposite and are in a closed-up shape, and two ends of the filter disc are provided with hard insertion rods for being inserted into the sliding grooves from top to bottom.

Preferably, the mask body on two sides of the square through hole is provided with a strip-shaped fixing part, and the sliding grooves are formed in opposite side surfaces of the two fixing parts.

Preferably, the fixed part on one side is provided with two sliding grooves, and the distance between every two adjacent sliding grooves is 0.2-0.5 cm.

Preferably, the edge of the mask body is provided with a continuous silica gel sealing edge.

Preferably, a pair of ear straps is arranged on two sides of the mask body.

Compared with the prior art, the invention has the following technical effects:

according to the detachable dustproof mask, the square through hole is formed in the middle of the mask body, the filter disc with the filtering effect is inserted into the square through hole and covers the square through hole to filter air inhaled by a wearer, so that the utilization rate of the filtering material is greatly improved, materials are saved, and the use cost of the dustproof mask is reduced.

Drawings

Fig. 1 is a schematic structural view of a detachable dust mask according to the present invention;

FIG. 2 is a schematic view of the dust mask of FIG. 1 without the filter;

FIG. 3 is a cross-sectional view of the dust mask of the present invention;

FIG. 4 is an enlarged schematic view of position A of FIG. 3;

the reference numbers in the figures illustrate: 10-a mask body, 101-an arc-shaped supporting mask, 102-an arc-shaped part, 103-a chin coating part, 11-a square through hole, 111-a sliding chute, 12-a fixing part, 13-a silica gel sealing edge, 14-an ear hanging belt, 20-a filter disc and 21-a hard insert rod.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further clarified by combining the specific drawings.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The inventor of the application finds that the traditional mask basically directly makes the filtering material with filtering effect into a mask for a user to wear at the mouth and nose, and filters the sucked air to prevent dust and other particulate matters suspended in the air from being sucked into the body, and the filtering material at the mouth and nose of the user is used for filtering the air, and the rest part of the mask has little filtration on the air, so that the utilization rate of the filtering material is obviously reduced; in addition, because many existing dust masks are disposable, the ear straps of the wearer, which are just worn on the ears and are suitable for the dust masks, are subject to replacement, and the ear straps of new dust masks always have uncomfortable feeling when worn, which obviously reduces the experience of the wearer.

Based on the defects of the prior dust mask in the using process, as shown in fig. 1-4, the inventor of the present application has developed a detachable dust mask, which includes a mask body 10 and a filter 20 detachably fixed at the middle position of the mask body 10, wherein the middle position of the mask body 10 has a square through hole 11, and the area of the filter 20 is larger than that of the square through hole 11; the mask body 10 comprises arc-shaped supporting face masks 101 positioned on the left side and the right side, arc-shaped parts 102 which are connected with the upper edges of the arc-shaped supporting face masks 101 on the two sides and the upper edges of which are jointed with the nose wings, and chin coating parts 103 which are connected with the lower edges of the arc-shaped supporting face masks 101 on the two sides and extend downwards; the two sides of the square through hole 11 are provided with a plurality of sliding grooves 111 which are symmetrically arranged and are arranged at intervals in the direction far away from the mouth and nose of a wearer, the notches of the sliding grooves 111 positioned at the two sides of the square through hole 11 are opposite and in a closed shape, and two ends of the filter element 20 are provided with hard insertion rods 21 for being inserted into the sliding grooves 111 from top to bottom.

In the invention, a square through hole 11 is arranged at the middle position in a mask body 10, and a filter sheet 20 with a filtering function is inserted and covered at the square through hole 11 to filter air inhaled by a wearer; when the filter disc 20 is saturated in adsorption, the filter disc 20 is directly pulled away and replaced by a new filter disc 20, so that the method is simple and convenient, and the high-efficiency utilization of the filter material is realized; moreover, the mask body 10 worn by the user is not replaced, that is, the ear-hang belt which is fit with the ears of the wearer is not replaced, so that the wearer has better use experience.

In the embodiment provided by the invention, the filter 20 positioned in the middle of the mask body 10 is replaced every time, and considering that gaps existing between the upper side and the lower side of the filter 20 and the mask body 10 influence the filtering effect in the actual use process, as shown in fig. 1 and 2, the length of the filter 20 is consistent with the length of the square through hole 11, and the width of the filter 20 is greater than the width of the square through hole 11, so that the upper side and the lower side of the filter 20 have more contact surfaces with the mask body 10, and the gaps are prevented from generating influence on the filtering of the mask; in the actual sample verification process, the inventor of the present application found that gaps between the filter 20 and the upper and lower sides of the mask body 10 are not easy to occur, and speculated that the reason is that the surfaces of the filter 20 and the mask body 10 are both rough structures, the friction force between the two is large, and the pulling action of the ear-hang straps enables the filter 20 to better cover the square through holes 11 on the mask body 10.

In the invention, the arc-shaped supporting mask 101 has certain stiffness and plays a supporting role; specifically, arc support face guard 101 adopt the fibrous cloth of thickening to make, through its arc supporting part that forms at the wearer face for certain clearance has between filter 20 and the person's of wearing the mouth nose, and then avoided the person's of wearing the mouth nose to contact the steam water that condenses at filter 20 medial surface, ensured the person's of wearing travelling comfort.

In the present invention, the mask body 10 on both sides of the square through hole 11 is provided with the strip-shaped fixing portions 12, and the sliding grooves 111 are formed on the opposite side surfaces of the two fixing portions 12.

Furthermore, two sliding grooves 111 are formed in the fixing portion 12 on one side, and the distance between every two adjacent sliding grooves 111 is 0.2-0.5 cm. That is, the dust mask provided by the present invention is provided with two layers of filter sheets 20 arranged at intervals, and the two layers of filter sheets 20 filter the air inhaled by the wearer together, so that not only is a good filtering effect ensured, but also, during the actual replacement operation, one layer of filter sheet 20 is always assembled on the mask body 10 to prevent the wearer from inhaling the air containing particles such as dust.

In the mask, the continuous silica gel sealing edge 13 is arranged at the edge of the mask body 10, and the silica gel sealing edge 13 is in contact with the skin of a wearer, so that a good sealing effect is ensured.

In the present invention, a pair of ear straps 14 are provided on both sides of the mask body 10 for wearing by a user.

The foregoing shows and describes the general principles, essential features, and inventive features of this invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The detachable dustproof mask is characterized by comprising a mask body (10) and a detachable filter disc (20) fixed at the middle position of the mask body (10), wherein a square through hole (11) is formed in the middle position of the mask body (10), and the area of the filter disc (20) is larger than that of the square through hole (11);

the mask body (10) comprises arc-shaped supporting face masks (101) positioned on the left side and the right side, arc-shaped parts (102) which are connected with the upper edges of the arc-shaped supporting face masks (101) on the two sides and the upper edges of which are attached to the nose wings, and chin coating parts (103) which are connected with the lower edges of the arc-shaped supporting face masks (101) on the two sides and extend downwards;

the two sides of the square through hole (11) are provided with a plurality of sliding grooves (111) which are symmetrically arranged and are arranged at intervals in the direction away from the mouth and nose of a wearer, the notches of the sliding grooves (111) positioned on the two sides of the square through hole (11) are opposite and in a closed-up shape, and two ends of the filter disc (20) are provided with hard insertion rods (21) for being inserted into the sliding grooves (111) from top to bottom.

2. The removable dust mask according to claim 1, wherein the mask body (10) on both sides of the square through hole (11) is provided with a strip-shaped fixing portion (12), and the sliding grooves (111) are formed on opposite sides of the two fixing portions (12).

3. The removable dust mask of claim 2, wherein two sliding grooves (111) are formed on the fixing portion (12) of one side, and the distance between adjacent sliding grooves (111) is 0.2-0.5 cm.

4. The detachable dustproof mask according to claim 1, wherein a continuous silicone sealing edge (13) is provided at the edge of the mask body (10).

5. The removable dust mask of claim 1 wherein a pair of ear straps (14) are provided on either side of the mask body (10).