CN210143888U

CN210143888U - Gauze mask of removable filter core

Info

Publication number: CN210143888U
Application number: CN201920969086.7U
Authority: CN
Inventors: 徐要辉; 张海燕; 张蔚然; 彭润斌; 范强; 陈昶; 邓迟
Original assignee: Leshan Normal University
Current assignee: Leshan Normal University
Priority date: 2019-06-25
Filing date: 2019-06-25
Publication date: 2020-03-17
Anticipated expiration: 2029-06-25

Abstract

The utility model discloses a mask with a replaceable filter element, which comprises a mask body and an ear band, wherein the mask body is integrally formed by polyurethane foam into a mask structure, a filter screen is attached to the inner side surface of the mask body, a support frame which tightly supports the filter screen and supports the mask body is arranged on the inner side of the mask body, and the edge of the filter screen extends to be connected with the edge of the mask body; the support frame comprises a middle rod, and an ejector rod and a bottom rod which are respectively connected with the two ends of the middle rod, wherein the ejector rod and the bottom rod are symmetrically distributed at the two ends of the middle rod. Has the advantages that: the support frame with the I-shaped structure can tightly support the filter screen and the face mask and simultaneously support the face mask away from the face of a user, so that the air inlet area of the face mask is increased, the effective use area of the face mask is increased, and the smoothness of breathing is improved; the positioning rings arranged at four corners of the filter screen are respectively penetrated through the two ends of the ejector rod and the bottom rod, and then the ejector rod and the bottom rod are fixed in a plugging and matching mode with the slots, so that the filter element can be conveniently replaced.

Description

Gauze mask of removable filter core

Technical Field

The utility model relates to an air filtration equipment, gauze mask technical field, concretely relates to gauze mask of removable filter core.

Background

Along with the attention of people to the air pollution condition, when going on a journey, more and more people can choose to wear polyurethane sponge gauze mask and carry out dustproof protection. Current polyurethane sponge, because the flexibility is good, when wearing the breathing, the gauze mask warp easily and attached in user's face, leads to gaseous sponge that only can follow the nose outside to inhale the nasal cavity, changes the effective usable floor area who has reduced the gauze mask mutually, and the sponge gauze mask of current area support frame, the structure is complicated, and the change of inconvenient dismantlement and filter core.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a gauze mask of removable filter core in order to solve above-mentioned problem, the utility model provides an among a great deal of technical scheme preferred technical scheme have: can carry out inside support to the gauze mask, improve the effective use area of gauze mask to be convenient for renew cartridge, technical effect such as convenient to use, see the explanation below for details.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a mask with replaceable filter element, which comprises a mask body and ear bands, wherein the mask body is formed by polyurethane foam into a mask structure, a filter screen is attached to the inner side surface of the mask body, a support frame which tightly supports the filter screen and supports the mask body is arranged on the inner side of the mask body, and the edge of the filter screen extends to be connected with the edge of the mask body;

the support frame includes the intermediate lever, connects ejector pin and the sill bar at this intermediate lever both ends respectively, ejector pin and sill bar symmetric distribution are in the both ends of intermediate lever, just the intermediate lever top is connected the middle part of ejector pin, the both ends of ejector pin and sill bar are respectively certainly behind this filter screen is run through to the filter screen inboard with the cooperation of pegging graft of face guard inlayer is fixed.

Preferably, the inner layer edge of the face mask is provided with a sealing gasket along the circumferential direction, and the sealing gasket is fixedly bonded with the inner wall edge of the face mask.

Preferably, the inner side edge of the filter screen is provided with two pairs of positioning rings which are respectively correspondingly matched with the two ends of the top rod and the bottom rod, and the two ends of the top rod and the bottom rod respectively penetrate through the two positioning rings corresponding to the top rod and the bottom rod and are matched with the inner layer of the mask in an inserting mode.

Preferably, two pairs of slots are formed in the positions, corresponding to the two groups of positioning rings, of the inner side edge of the face mask, and the end portions of the top rod and the bottom rod penetrate through the positioning rings and then are in splicing fit with the slots.

Preferably, the top rod, the bottom rod and the middle rod are all arc-shaped rods protruding towards the inner layer of the mask.

Preferably, the two ends of the middle rod are respectively provided with an extension rod extending out of the top rod and the bottom rod.

Preferably, a breather valve is mounted to the mask in a penetrating manner.

To sum up, the utility model has the advantages that: 1. the support frame with the I-shaped structure can tightly support the filter screen and the face mask and simultaneously support the face mask away from the face of a user, so that the air inlet area of the face mask is increased, the effective use area of the face mask is increased, and the smoothness of breathing is improved;

2. the positioning rings arranged at four corners of the filter screen are respectively penetrated through the two ends of the ejector rod and the bottom rod, and then the ejector rod and the bottom rod are fixed in a plugging and matching mode with the slots, so that the filter element can be conveniently replaced.

Drawings

In order to more clearly illustrate the embodiments of the present invention 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, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of the back structure of FIG. 1;

FIG. 3 is a schematic view of the structure of the support frame and the filter net;

FIG. 4 is a schematic view of the supporting frame of the present invention;

FIG. 5 is a schematic left side view of the structure of FIG. 5;

fig. 6 is a schematic structural view of another embodiment of the support frame of the present invention.

The reference numerals are explained below:

1. a face mask; 2. a breather valve; 3. an ear band; 4. a sealing gasket; 5. a support frame; 501. a top rod; 502. an intermediate lever; 503. a bottom bar; 6. a slot; 7. filtering with a screen; 8. a retaining ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-6, the utility model provides a mask with replaceable filter element, which comprises a mask 1 and an ear band 3 which are integrally formed into a mask structure by polyurethane foam, wherein a filter screen 7 is attached to the inner side surface of the mask 1, a support frame 5 which tightly supports the filter screen 7 and supports the mask 1 is arranged at the inner side of the mask 1, the edge of the filter screen 7 extends to be connected with the edge of the mask 1, the area of the filter screen 7 is consistent with the area of the inner layer of the mask 1, and after the support frame 5 tightly supports the filter screen 7 to the mask 1, when a user breathes, air is uniformly filtered by the filter screen 7, thereby improving the air filtering effect of the mask; the middle of the top of the face mask 1 is provided with a nose clamping part which is made of an aluminum strip and polyurethane sponge wrapped outside, and the nose clamping part is fixedly bonded with the face mask 1; support frame 5 includes middle pole 502, connect ejector pin 501 and the sill bar 503 at this middle pole 502 both ends respectively, ejector pin 501 and sill bar 503 symmetric distribution are at the both ends of middle pole 502, and the middle part of ejector pin 501 is connected on middle pole 502 top, the both ends of ejector pin 501 and sill bar 503 are respectively from filter screen 7 inboard run through behind this filter screen 7 with the cooperation of pegging graft of face guard 1 inlayer fixed, ejector pin 501, sill bar 503 and middle pole 502 form a class I shape structure, can correspond patient's nasal part top and the position jack-up of oral part below with face guard 1 and filter screen 7 respectively, thereby prevent that filter screen 7 from hugging closely user's oral part and nasal part, improve the smooth and easy degree that the user breathed.

As an optional embodiment, a sealing gasket 4 is arranged on the edge of the inner layer of the face mask 1 along the circumferential direction, the sealing gasket 4 is fixedly bonded with the edge of the inner wall of the face mask 1, and the inner edge of the sealing gasket 4 is connected with the edge of the filter screen 7;

two pairs of positioning rings 8 which are correspondingly matched with the two ends of the top rod 501 and the bottom rod 503 respectively are arranged at the edge of the inner side of the filter screen 7, the positioning rings 8 are non-woven fabric belts, the two ends of the non-woven fabric belts are fixedly bonded with the filter screen 7, so that a ring shape is formed after the surfaces of the filter screen 7 are matched, the two ends of the top rod 501 and the bottom rod 503 penetrate through the two corresponding positioning rings 8 respectively and are in splicing fit with the inner layer of the mask 1, the top rod 501 and the bottom rod 503 penetrate through the positioning rings 8 respectively, a certain limiting effect can be achieved on the;

two pairs of slots 6 are arranged at the inner side edge of the face mask 1 corresponding to the two groups of positioning rings 8, the slots 6 are non-woven fabric sheets with edges matched with the inner layer of the face mask 1 in a bonding manner, one side of the slots facing the filter screen 7 is of an opening structure, the end parts of the top rod 501 and the bottom rod 503 penetrate through the positioning rings 8 and then are matched with the slots 6 in an inserting manner, the assembling and disassembling operation can be conveniently carried out in the inserting and assembling manner, the support frame 5 and the filter screen 7 can be conveniently disassembled and assembled, and meanwhile, the face mask 1;

the top rod 501, the bottom rod 503 and the middle rod 502 are all arc rods protruding towards the inner layer of the face mask 1, and the filter screen 7 can be jacked up by adopting the arc rods to prevent the filter screen 7 from contacting the nose and the mouth of a user;

as shown in fig. 6, the two ends of the middle rod 502 are respectively provided with an extension rod extending out of the top rod 501 and the bottom rod 503, the end of the extension rod is located inside the edge of the filter screen 7, and the extension rods are arranged at the two ends of the middle rod 502, so that the top edge and the bottom edge of the filter screen 7 can be supported, and the upper edge and the lower edge of the filter screen 7 are prevented from being flanged;

a breather valve 2 is arranged on the face mask 1 in a penetrating way.

The support frame 5 with the I-shaped structure can tightly support the filter screen 7 and the face mask 1 and simultaneously support the face mask 1 away from the face of a user, so that the air inlet area of the face mask 1 is increased, the effective use area of the face mask 1 is increased, and the smoothness of breathing is improved;

through the holding ring 8 that passes filter screen 7 four corners department setting respectively with the both ends of ejector pin 501 and sill bar 503, then peg graft with slot 6 and cooperate fixedly, easy dismounting, the change of carrying out the filter core that can be convenient.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The mask with the replaceable filter element is characterized by comprising a mask (1) and an ear band (3) which are integrally formed into a mask structure by adopting polyurethane foam, wherein a filter screen (7) is attached to the inner side surface of the mask (1), a support frame (5) which tightly supports the filter screen (7) and supports the mask (1) is arranged on the inner side of the mask (1), and the edge of the filter screen (7) extends to be connected with the edge of the mask (1);

support frame (5) include intermediate lever (502), connect ejector pin (501) and sill bar (503) at this intermediate lever (502) both ends respectively, ejector pin (501) and sill bar (503) symmetric distribution are in the both ends of intermediate lever (502), just intermediate lever (502) top is connected the middle part of ejector pin (501), the both ends of ejector pin (501) and sill bar (503) are respectively certainly behind filter screen (7) inboard runs through this filter screen (7) with face guard (1) inlayer grafting cooperation is fixed.

2. The mask with the replaceable filter element according to claim 1, wherein: the inner layer edge of the face mask (1) is provided with a sealing gasket (4) along the circumferential direction, and the sealing gasket (4) is fixedly bonded with the inner wall edge of the face mask (1).

3. The mask with the replaceable filter element according to claim 1, wherein: the inboard border of filter screen (7) is provided with two pairs and corresponds the cooperation respectively ejector pin (501) with holding ring (8) at bottom bar (503) both ends, ejector pin (501) with the both ends of bottom bar (503) pass respectively rather than two holding ring (8) backs that correspond, with the cooperation of pegging graft of face guard (1) inlayer.

4. The mask with the replaceable filter element as claimed in claim 3, wherein: the inner side edge of the face mask (1) corresponds to two sets of the positioning rings (8) and is provided with two pairs of inserting grooves (6), and the end parts of the ejector rod (501) and the bottom rod (503) penetrate through the positioning rings (8) and then are matched with the inserting grooves (6) in an inserting mode.

5. The mask with the replaceable filter element according to claim 1, wherein: the top rod (501), the bottom rod (503) and the middle rod (502) are arc-shaped rods protruding towards the inner layer of the face mask (1).

6. The mask with the replaceable filter element as claimed in claim 5, wherein: the two ends of the middle rod (502) are respectively provided with an extension rod extending out of the top rod (501) and the bottom rod (503).

7. A respirator having a replaceable filter element according to any one of claims 1 to 6, wherein: and a breather valve (2) is arranged on the face mask (1) in a penetrating way.