CN213074550U

CN213074550U - Mask with replaceable filter element

Info

Publication number: CN213074550U
Application number: CN202021524674.9U
Authority: CN
Inventors: 杨以挺; 梁治樱; 张德彬
Original assignee: Zhejiang Xinna Medical Device Technology Co ltd
Current assignee: Zhejiang Xinna Medical Device Technology Co ltd
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2021-04-30
Anticipated expiration: 2030-07-28

Abstract

The utility model discloses a can replace gauze mask of filter core relates to health supplies technical field, and its technical scheme main points are: including the supporter, the protecgulum, the filter core, back lid, the supporter is with back lid looks joint, back lid and protecgulum looks joint, the cooperation is formed with gas circulation channel between back lid and the protecgulum, the filter core sets up between back lid and the protecgulum and can shelter from gas circulation channel, the surface of filter core and the internal surface of filter core lean on with the surface of back lid and the internal surface of protecgulum respectively mutually, this can replace gauze mask long service life of filter core, and simple structure is convenient for make.

Description

Mask with replaceable filter element

Technical Field

The utility model relates to the technical field of sanitary articles, in particular to can replace gauze mask of filter core.

Background

The mask is a sanitary product, is generally worn at the mouth and nose part and is used for filtering air entering the mouth and nose so as to achieve the purpose of blocking harmful gas, smell and spray from entering and exiting the mouth and nose of a wearer, is an important defense line for preventing respiratory infectious diseases, can prevent a patient from spraying the spray, reduce the spray amount and the spray speed and also block the spray containing viruses, and along with the development of the epidemic pneumonia infected by novel coronavirus, the demand for the mask is huge.

Chinese patent with publication number CN208462993U discloses a mask, which comprises an exhalation valve cover, a filter unit, a breathing chamber and a breathing mask, wherein the breathing chamber passes through the filter unit and is connected with the exhalation valve cover, the filter unit and the breathing mask are detachably pressed and fixed on the breathing chamber by the exhalation valve cover, clean air filtered by the filter unit enters the breathing mask for inhalation, and exhaled air is exhausted by the exhalation valve cover.

The technical scheme has the following defects: the respirator detachably compresses the filter unit and the breathing mask on the breathing chamber through the breathing valve cover, and the whole structure is complex and is not easy to manufacture.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art existence, the utility model aims to provide a can replace gauze mask of filter core, it has simple structure's advantage.

The above technical purpose of the present invention can be achieved by the following technical solutions: including supporter, protecgulum, filter core, hou gai, the supporter with back lid looks joint, back lid with protecgulum looks joint, back lid with the cooperation is formed with gas circulation channel between the protecgulum, the filter core set up in back lid with just can shelter from between the protecgulum gas circulation channel, the surface of filter core and the internal surface of filter core respectively with the surface of back lid and the internal surface of protecgulum are pasted mutually.

Through the technical scheme, the support body and the rear cover are relatively fixed through the clamping connection, the rear cover and the front cover are relatively fixed through the clamping connection, a wearer breathes air through the air circulation channel formed by matching the rear cover and the front cover, the filter element is arranged between the rear cover and the front cover, the outer surface of the filter element and the inner surface of the filter element are respectively attached to the outer surface of the rear cover and the inner surface of the front cover, the position of the filter element can be kept fixed under the extrusion action of the rear cover and the front cover, meanwhile, the filter element shields the air circulation channel, when the wearer breathes air, the filter element filters the air sucked from the air circulation channel, blocks harmful gas, smell, spray, virus and other substances accompanying in the air, the life health of the wearer is guaranteed, when one of the support body, the front cover, the rear cover and the filter element is damaged or needs to be cleaned and disinfected, only need demolish the joint between supporter and the protecgulum and just can change one of them, overall structure is simple, and it is convenient to dismantle, and the filter core is convenient for change, also is convenient for the manufacturing of gauze mask.

Preferably, the inside wall of supporter extends and is formed with and keeps off the shoulder, keep off and have seted up the joint groove on the shoulder, the internal surface of back lid extends and is formed with the joint piece, the joint piece peg graft in the joint inslot, the lateral wall of joint piece can with the inside wall in joint groove extrudees.

Through above-mentioned technical scheme, the back covers the joint piece that extends the formation and inserts to the joint inslot of supporter, and the lateral wall of joint piece makes supporter and back lid looks joint with the inside wall in joint groove mutual extrusion, has kept relatively fixed between messenger's supporter and the back lid.

Preferably, the outer surface of the rear cover extends to form a plurality of hooks, and the inner surface of the front cover extends to form a plurality of protrusions clamped with the hooks.

Through the technical scheme, the plurality of hooks formed by extending the rear cover and the plurality of protrusions formed by extending the front cover are matched and clamped, so that the rear cover and the front cover are relatively fixed.

Preferably, the outer surface of the rear cover is provided with a placing groove, and the filter element is placed in the placing groove.

Through above-mentioned technical scheme, the filter core can stably be placed in the standing groove, and the filter core can not take place the offset because of the wearer breathes the air.

Preferably, a stopper is formed on the inner surface of the front cover in an extending manner, and the outer end surface of the stopper abuts against the outer surface of the filter element.

Through above-mentioned technical scheme, protecgulum keeps relatively fixed with the back lid, and the outer terminal surface of dog leans on with the surface counterbalance of filter core to fix the filter core in the standing groove.

Preferably, a plurality of first through holes are formed in the placing groove, a plurality of first air vents are formed in the front cover, and the first through holes and the first air vents are communicated to form the gas circulation channel.

Through above-mentioned technical scheme, when the wearer exhales, the air is at first outwards discharged from vent hole through vent hole one then through the filter core, and when the wearer breathes in, the air is at first inhaled by the wearer from vent hole one then through the filter core inwards.

Preferably, the rear cover is provided with a second vent, the front cover is provided with a plurality of second through holes, and the second vent is communicated with the second through holes.

Through the technical scheme, when a wearer exhales, air firstly passes through the second vent and then is discharged outwards from the second through hole, and when the wearer inhales, the air firstly passes through the second through hole and then is inhaled inwards from the second vent by the wearer.

Preferably, a positioning support is arranged in the second air vent, and a filtering body capable of sealing the second air vent is detachably connected to the positioning support.

Through above-mentioned technical scheme, two departments of blow vent set up the locating support, will cross the filter body and can dismantle the connection on the locating support, cross the filter body and filter the air through two departments of blow vent, cross the filter body simultaneously and can dismantle with the locating support and be connected, the accessible is changed and is crossed the filter body, prolongs the life of gauze mask.

Preferably, a positioning column is formed on the filter body in an extending mode, a positioning block is arranged on the positioning column, a positioning hole is formed in the positioning support, and the positioning column penetrates through the positioning hole to enable the positioning block to be clamped with the positioning hole.

Through the technical scheme, the positioning column formed by extending the filter body penetrates through the positioning hole formed in the positioning support, and the filter body is fixedly connected with the positioning support through clamping of the positioning block and the positioning hole.

To sum up, the utility model discloses the beneficial effect who contrasts in prior art does:

1. the support body and the rear cover are relatively fixed through the clamping block and the clamping groove, the front cover and the rear cover are relatively fixed through the matching of the clamping hook and the protrusion, the filter element is placed in the placing groove of the front cover, and the position of the filter element is kept fixed through the matching between the placing groove on the front cover and the stop block on the rear cover, so that the mask is simple in integral structure and convenient to manufacture;

2. meanwhile, the filter element or one of the filter elements can be replaced by detaching the clamping among the support body, the front cover and the rear cover, so that the mask is simple and convenient, the service life of the mask is prolonged, and the cost is reduced;

3. the air is breathed to wearer's accessible blow vent one, through-hole one, and the air of breathing filters through the filter core, also can breathe the air through blow vent two, through-hole two, and the air of breathing filters through filtering the body, and dual breathing passageway supplies the wearer to breathe the air, and can be applicable to wearer's mouth nose respectively, has strengthened wearer's use and has experienced the sense and has promoted the comfort level after wearing.

Drawings

FIG. 1 is an exploded view of an embodiment;

FIG. 2 is a schematic structural diagram of an embodiment;

FIG. 3 is a schematic structural view of a support body of the embodiment;

FIG. 4 is a schematic structural view of a rear cover of the embodiment;

FIG. 5 is a schematic structural view of a filter body according to an embodiment;

fig. 6 is a schematic structural diagram of the front cover of the embodiment.

Reference numerals: 1. a support body; 11. a shoulder block; 111. a clamping groove; 2. a front cover; 22. a stopper; 23. a first air vent; 24. a second through hole; 3. a filter element; 4. a rear cover; 41. a placement groove; 42. a first through hole; 43. a second air vent; 44. positioning the bracket; 441. positioning holes; 45. a clamping block; 5. a gas circulation channel; 6. a hook; 61. connecting blocks; 62. a hook body; 7. a protrusion; 71. a groove; 8. a filter body; 81. a positioning column; 82. and (5) positioning the blocks.

Detailed Description

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

The present invention will be described in further detail with reference to the accompanying drawings.

A mask with a replaceable filter element is disclosed, as shown in fig. 1 to 6, and comprises a support body 1, a front cover 2, a filter element 3 and a rear cover 4, wherein a shoulder 11 is formed in the inner side wall of the support body 1 in an extending manner, a clamping groove 111 is formed in the shoulder 11, a clamping block 45 is formed in the inner surface of the rear cover 4 in an extending manner, the clamping block 45 and the rear cover 4 are integrally formed, preferably, the rear cover 4 is made of a high-elasticity material capable of being reversibly deformed, the clamping block 45 can be inserted into the clamping groove 111 under the action of external force, the outer side wall of the clamping block 45 can be extruded with the inner side wall of the clamping groove 111 by means of the force generated by elastic deformation of the high-elasticity material, the support body 1 and the rear cover 4 are clamped, as another scheme, the clamping groove 111 can also be formed in the rear cover 4, the support body 1 extends to form the clamping block.

The rear cover 4 is clamped with the front cover 2, a plurality of clamping hooks 6 are formed on the outer surface of the rear cover 4 in an extending mode, preferably, the number of the clamping hooks 6 is four, a plurality of protrusions 7 clamped with the clamping hooks 6 are formed on the inner surface of the front cover 2 in an extending mode, a groove 71 is formed in the side wall of each protrusion 7, preferably, the number of the protrusions 7 is four, each clamping hook 6 comprises a connecting block 61 and a hook body 62, and the hook bodies 62 are abutted against the inner wall of the groove 71; as another scheme, the outer surface of the rear cover 4 is provided with a plurality of protrusions 7, the inner surface of the front cover 2 is provided with a plurality of hooks 6 which are clamped with the protrusions 7, and the hooks 6 are clamped with the protrusions 7.

The cooperation is formed with gas circulation channel 5 between back lid 4 and the protecgulum 2, and filter core 3 sets up and just can shelter from gas circulation channel 5 between back lid 4 and protecgulum 2, and the surface of filter core 3 and the internal surface of filter core 3 respectively with the surface of back lid 4 and the internal surface of protecgulum 2 paste mutually and lean on.

The surface of back lid 4 is provided with standing groove 41, and filter core 3 places in standing groove 41, and the internal surface of protecgulum 2 extends and is formed with dog 22, and the outer terminal surface of dog 22 leans on with the surface counterbalance of filter core 3, has seted up a plurality of through-hole 42 in the standing groove 41, has seted up a plurality of blow vent 23 on the protecgulum 2, and through-hole 42 has been linked together with blow vent 23 and has formed gas circulation passageway 5, through-hole 42 and blow vent 23.

Rear cover 4 is provided with vent two 43, be provided with locating support 44 in vent two 43, the last filter body 8 that can the closing cap vent two 43 that detachably connects of locating support 44, it is formed with reference column 81 to extend on filter body 8, be provided with locating piece 82 on reference column 81, locating hole 441 has been seted up on locating support 44, the diameter of locating piece 82 is greater than the diameter of locating hole 441, reference column 81 passes locating hole 441 and can make locating piece 82 and locating hole 441 joint mutually, locating piece 82 takes place to warp under the exogenic action and can pass locating hole 441, be provided with a plurality of through-hole two 24 on the protecgulum 2, vent two 43 is linked together with through-hole two 24, the position of through-hole two 24 and vent two 43 is located the below of through-hole one 42 and vent.

A mask with a replaceable filter element works in a mode that:

firstly, the filter element 3 is placed in the placing groove 41, the positioning block 82 on the positioning column 81 passes through the positioning hole 441 arranged on the positioning bracket 44 by external force, and the filter body 8 is clamped on the positioning bracket 44; under the action of external force, the hook body 62 on the hook 6 is extruded into the groove 71 of the protrusion 7, so that the hook body 62 abuts against the inner wall of the groove 71, the rear cover 4 is clamped with the front cover 2, and the stopper 22 formed by extending the inner surface of the front cover 2 abuts against the outer surface of the filter element 3, so that the filter element 3 is stably placed in the placing groove 41; then, the clamping block 45 is extruded under the action of external force to deform and then enters the clamping groove 111, and the outer side wall of the clamping block 45 is extruded with the inner side wall of the clamping groove 111, so that the rear cover 4 is clamped with the support body 1; when the wearer exhales, air is respectively exhausted from the first air port 23 through the first through hole 42, then passes through the filter element 3, and is exhausted from the second through hole 24 through the second air port 43, and when the wearer inhales, air is respectively inhaled by the wearer from the first through hole 42 through the first air port 23, then passes through the filter element 3, and is inhaled by the wearer from the second air port 43 through the second through hole 24.

A mode of replacing a filter element of a mask with a replaceable filter element comprises the following steps:

firstly, taking out the clamping block 45 arranged on the rear cover 4 from the clamping groove 111 formed on the support body 1 through external force, so that the clamping between the support body 1 and the rear cover 4 is released, then pressing the clamping hook 6 through the external force, so that the abutting between the hook body 62 part of the clamping hook 6 and the groove 71 of the bulge 7 is released, at the moment, the clamping between the rear cover 4 and the front cover 2 is released, and at the moment, taking out the filter element 3 placed in the placing groove 41 and replacing the filter element; under the action of external force, the positioning block 82 arranged on the positioning column 81 is taken out from the positioning hole 441 arranged on the positioning bracket 44, so that the filter body 8 is detached, and when the filter body is remounted, the positioning block 82 passes through the positioning hole 441 again through external force.

The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention, which is defined by the appended claims.

Claims

1. The utility model provides a can replace gauze mask of filter core, includes supporter (1), protecgulum (2), filter core (3), back lid (4), characterized by: the utility model discloses a filter element, including support body (1), back lid (4) and protecgulum (2) joint mutually, back lid (4) with the cooperation is formed with gas circulation passageway (5) between protecgulum (2), filter core (3) set up in back lid (4) with between protecgulum (2) and can shelter from gas circulation passageway (5), the surface of filter core (3) and the internal surface of filter core (3) respectively with the surface of back lid (4) and the internal surface of protecgulum (2) paste mutually and lean on.

2. The mask with replaceable filter element as claimed in claim 1, wherein: the inside wall of supporter (1) extends and is formed with and keeps off shoulder (11), keep off and have seted up joint groove (111) on shoulder (11), the internal surface extension of back lid (4) is formed with joint piece (45), joint piece (45) peg graft in joint groove (111), the lateral wall of joint piece (45) can with the inside wall of joint groove (111) extrudees mutually.

3. The mask with replaceable filter element as claimed in claim 1, wherein: the outer surface of the rear cover (4) extends to form a plurality of hooks (6), and the inner surface of the front cover (2) extends to form a plurality of bulges (7) which are clamped with the hooks (6).

4. The mask with replaceable filter element as claimed in claim 1, wherein: the outer surface of the rear cover (4) is provided with a placing groove (41), and the filter element (3) is placed in the placing groove (41).

5. The mask with replaceable filter element as claimed in claim 1, wherein: a stop block (22) is formed by extending the inner surface of the front cover (2), and the outer end face of the stop block (22) is abutted against the outer surface of the filter element (3).

6. The mask with replaceable filter element as claimed in claim 4, wherein: a plurality of first through holes (42) are formed in the placing groove (41), a plurality of first ventilation openings (23) are formed in the front cover (2), and the first through holes (42) are communicated with the first ventilation openings (23) to form the gas circulation channel (5).

7. The mask with replaceable filter element as claimed in claim 1, wherein: be provided with vent two (43) on back lid (4), be provided with a plurality of through-hole two (24) on protecgulum (2), vent two (43) with through-hole two (24) are linked together.

8. The mask with replaceable filter element as claimed in claim 7, wherein: and a positioning support (44) is arranged in the second air vent (43), and a filter body (8) capable of sealing the second air vent (43) is detachably connected to the positioning support (44).

9. The mask with replaceable filter element as claimed in claim 8, wherein: the filter body (8) is provided with a positioning column (81) in an extending mode, a positioning block (82) is arranged on the positioning column (81), a positioning hole (441) is formed in the positioning support (44), and the positioning column (81) penetrates through the positioning hole (441) to enable the positioning block (82) to be clamped with the positioning hole (441).