CN213407521U

CN213407521U - Active carbon filters breathing dust mask

Info

Publication number: CN213407521U
Application number: CN202021526985.9U
Authority: CN
Inventors: 齐振; 李翠霞; 李相丽
Original assignee: Yantai Lisong Safety Technology Co ltd
Current assignee: Yantai Lisong Safety Technology Co ltd
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2021-06-11
Anticipated expiration: 2030-07-28

Abstract

The application relates to an active carbon filtering breathing dustproof mask, which comprises a mask body, wherein the mask body is fixedly provided with an expiratory valve and a left inspiratory valve and a right inspiratory valve, the expiratory valve is provided with an expiratory port, the inspiratory valve is provided with an inspiratory port, and the inspiratory valve is detachably connected with an active carbon filtering box. After the activated carbon filter box is used for a long time, the filtering and adsorbing capacity of the internal activated carbon filter box is weakened, the two air suction valves of the mask body are detachably connected with the activated carbon filter box, the activated carbon filter box is convenient to replace and disassemble, the whole mask is not required to be replaced, and the cost is saved.

Description

Active carbon filters breathing dust mask

Technical Field

The application relates to the field of dust masks, in particular to an active carbon filtering breathing dust mask.

Background

Filter formula dust mask is comparatively common one among the dust mask. The filtering dust mask has the functions of preventing dust, smoke, fog, steam and fine dust, and can adsorb small particles and toxic harmful gas and filter out safe and respirable air. The added activated carbon filter cotton has the effects of preventing peculiar smell and slight toxic gas, is a labor protection article for preventing or reducing dust in the air from entering human respiratory organs so as to protect life safety, and has important practical significance in the aspects of protecting personal safety and production safety.

Chinese patent publication No. CN107261354A discloses an activated carbon gas mask, which includes: eye shield and air filter, the air filter further includes: the nose wing fixing cover comprises a nose wing fixing cover body, air filtering valves and an expiratory valve, the air filtering valves are arranged on the left side and the right side of the nose wing fixing cover body in a mirror mode, the expiratory valve is arranged at the bottom of the nose wing fixing cover body, an eye cover is arranged at the top of the nose wing fixing cover body, an activated carbon box is arranged in the air filtering valves, a dustproof gasket is arranged on the activated carbon box, and a silica gel contact edge which is at a 90-degree angle with the eye cover is arranged.

Aiming at the related technologies, the inventor thinks that the activated carbon gas mask has the advantages that the activated carbon box is positioned inside the gas filter valve in the using process, after the mask is used for a long time, the filtering and adsorbing capacity of the activated carbon box is weakened, the activated carbon box cannot be taken out alone for replacement, the activated carbon gas mask needs to be replaced periodically, the manufactured activated carbon gas mask is high in finished product, and financial and material resources are wasted due to frequent replacement.

SUMMERY OF THE UTILITY MODEL

For the convenience of replacing the activated carbon filter box, the application provides an activated carbon filters breathing dust mask.

The application provides an active carbon filters breathing dust mask adopts following technical scheme:

the utility model provides an active carbon filters breathing dust mask, includes the mask body, the mask body has set firmly expiratory valve and two inspiratory valves about with, and the expiratory valve is equipped with the exhaling mouth, and the inspiratory valve is equipped with the induction port, and the inspiratory valve can be dismantled and be connected with the active carbon filter cartridge.

Through adopting above-mentioned technical scheme, activated carbon filter cartridge is after long-time the use, and inside activated carbon filter cartridge's filtration adsorption efficiency weakens, and two suction valves of mask body can be dismantled with activated carbon filter cartridge and be connected, are convenient for change and dismantle activated carbon filter cartridge, needn't change whole mask, have practiced thrift the cost.

Preferably, the activated carbon filter box is provided with the opening with induction port looks adaptation, the suction valve is close to induction port department be equipped with the snap ring of opening looks adaptation, the spacing groove has been seted up along circumference to the snap ring inner circle, the snap ring includes left ring and right ring, left ring and right ring are articulated in one end, left ring and right ring are at other end joint, activated carbon filter box is close to the spacing ring of opening department fixedly connected with and spacing groove looks adaptation.

By adopting the technical scheme, when the activated carbon filter box is fixed with the air suction valve, the limiting groove of the left ring is clamped with the semi-ring of the limiting ring, the limiting groove of the right ring is clamped with the other semi-ring of the limiting ring, and then the left ring and the right ring are clamped and locked, so that the activated carbon filter box and the air suction valve are fixed.

Preferably, one end of the left ring far away from the hinge point is fixedly connected with a first positioning piece, one end of the right ring far away from the hinge point is fixedly connected with a second positioning piece, the first positioning piece is connected with a bolt, and the second positioning piece is provided with a screw hole matched with the bolt.

Through adopting above-mentioned technical scheme, behind the snap ring card spacing ring, spacer one is just right with spacer two, again with bolt and screw threaded connection, has strengthened the fastening nature that left side ring and right ring are connected, and then has improved the active carbon filter cartridge and the valve of breathing in's fastening nature of being connected.

Preferably, the outer ring of the limit ring is fixedly connected with a sealing rubber ring.

Through adopting above-mentioned technical scheme, set up the sealed rubber ring and improved the leakproofness between the spacing groove on spacing ring and the snap ring, make the gaseous difficult follow snap ring department of giving off after the active carbon filter cartridge filters, guarantee the purity that the nasal cavity inhales gas.

Preferably, the end face of the activated carbon filter box close to the mask body is fixedly connected with an ejector rod, and the mask body is provided with a groove inserted with the ejector rod.

By adopting the technical scheme, when the activated carbon filter box is fixed with the air suction valve, the ejector rod is connected with the groove in an inserting mode, and the connection stability of the activated carbon filter box and the air suction valve is improved.

Preferably, the end face, far away from the through opening, of the activated carbon filter box is fixedly provided with a dust screen.

Through adopting above-mentioned technical scheme, the dust screen can carry out the prefilter to the air of inhaling the active carbon filter box, prevents that the great impurity of particle diameter from getting into the active carbon filter box in.

Preferably, the mask body is bonded with a soft nose bridge strip.

Through adopting above-mentioned technical scheme, the bridge of the nose strip plays the effect of supporting mask and bridge of the nose, and the people of being convenient for when wearing the mask, the mask body can be better with people's skin laminating.

Preferably, the air suction valve is fixedly connected with a threaded pipe with the same diameter as the air suction port, the threaded pipe is provided with an external thread, and the activated carbon filter box is fixedly connected with a sleeve pipe in threaded connection with the threaded pipe.

Through adopting above-mentioned technical scheme, sleeve pipe and screwed pipe threaded connection are convenient for fix active carbon filter cartridge and suction valve.

In summary, the present application includes at least one of the following beneficial technical effects:

1. after the active carbon filter box is used for a long time, the filtering and adsorbing capacity of the internal active carbon filter box is weakened, and the two air suction valves of the mask body are detachably connected with the active carbon filter box, so that the active carbon filter box is convenient to replace and disassemble, the whole mask is not required to be replaced, and the cost is saved;

2. when the activated carbon filter box is fixed with the air suction valve, the limiting groove of the left ring is clamped with one half ring of the limiting ring, the limiting groove of the right ring is clamped with the other half ring of the limiting ring, and then the left ring and the right ring are clamped and locked, so that the activated carbon filter box is fixed with the air suction valve;

3. the sleeve is in threaded connection with the threaded pipe, so that the activated carbon filter box and the air suction valve can be conveniently fixed.

Drawings

Fig. 1 is a schematic view of the entire structure of embodiment 1.

Fig. 2 is intended to highlight the structural schematic of the nose bridge strip.

Fig. 3 is a schematic view for highlighting the structure of the snap ring in embodiment 1.

Fig. 4 is a schematic structural view of the activated carbon filter cassette in example 1.

Fig. 5 is an exploded view of example 2.

Description of reference numerals: 1. a mask body; 2. an exhalation valve; 3. an air intake valve; 21. an exhalation port; 31. an air suction port; 4. an activated carbon filter cartridge; 41. a port; 5. a snap ring; 51. a limiting groove; 52. a left ring; 53. a right ring; 42. a limiting ring; 521. positioning a first plate; 531. a second positioning sheet; 5211. a bolt; 421. sealing the rubber ring; 43. a top rod; 33. a groove; 44. a dust screen; 11. a nose bridge strip; 32. a threaded pipe; 45. a sleeve.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings.

The embodiment of the application discloses activated carbon filters breathing dust mask.

Example 1:

referring to fig. 1 and 2, the active carbon filtering breathing dustproof mask comprises a mask body 1, wherein an exhalation valve 2 and a left inhalation valve 3 and a right inhalation valve 3 are fixed on the mask body 1, the exhalation valve 2 is provided with an exhalation port 21, the inhalation valve 3 is provided with an inhalation port 31, and the inhalation valve 3 is detachably connected with an active carbon filter box 4.

Referring to fig. 1 and 2, in the use process of the active carbon filtering breathing dustproof mask, people attach the mask body 1 to the face of a person, when breathing in, the outside air sequentially flows through the active carbon filtering box 4 and the inhalation valve 3 to enter the nasal cavity of the person, when the outside air passes through the active carbon filtering box 4, the active carbon filtering box 4 adsorbs small particles and harmful gas in the air, and the air which is safe and can be inhaled is filtered.

Referring to fig. 1 and 2, an exhalation sheet with the same diameter as that of the exhalation port 21 is bonded to the outer wall of the exhalation port 21, and one half of the exhalation sheet is bonded to the exhalation port 21, so that when people exhale outwards, one half of the exhalation sheet is opened, gas flows out, and when people inhale, the exhalation sheet cannot be opened; the inner wall of the air suction port 31 is adhered with an air suction sheet matched with the air suction port 31, and half of the air suction sheet is adhered with the air suction port 31, so that when people inhale air inwards, half of the air suction sheet is opened, filtered air enters, and when people exhale, the air suction sheet cannot be opened.

Referring to fig. 1 and 2, after the activated carbon filter box 4 is used for a long time, the filtering and adsorbing capacity of the internal activated carbon filter box 4 is weakened, and the two air suction valves 3 of the mask body 1 are detachably connected with the activated carbon filter box 4, so that the activated carbon filter box 4 is convenient to replace and disassemble, the whole mask is not required to be replaced, and the cost is saved.

Referring to fig. 3 and 4, an opening 41 matched with the air suction port 31 is formed in the activated carbon filter box 4, a clamping ring 5 matched with the opening 41 is installed at a position, close to the air suction port 31, of the air suction valve 3, a limiting groove 51 is formed in the inner ring of the clamping ring 5 along the circumferential direction, the clamping ring 5 comprises a left ring 52 and a right ring 53, the left ring 52 is hinged to the right ring 53 at one end, the left ring 52 is clamped to the right ring 53 at the other end, and a limiting ring 42 matched with the limiting groove 51 is fixedly connected to a position, close to the opening 41, of the activated carbon filter box.

Referring to fig. 3 and 4, when the activated carbon filter cartridge 4 is fixed with the inhalation valve 3, the limiting groove 51 in the snap ring 5 is matched with the limiting ring 42 on the activated carbon filter cartridge 4, when the activated carbon filter cartridge is fixed, the limiting groove 51 of the left ring 52 is clamped with one half ring of the limiting ring 42, the limiting groove 51 of the right ring 53 is clamped with the other half ring of the limiting ring 42, and then the left ring 52 is clamped with the right ring 53 for locking, thereby realizing the fixation of the activated carbon filter cartridge 4 and the inhalation valve 3; when the activated carbon filter cassette 4 is removed, the left ring 52 is separated from the right ring 53, so that the stopper groove 51 is separated from the stopper ring 42.

Referring to fig. 3 and 4, the outer ring of the limit ring 42 is fixedly connected with a sealing rubber ring 421, and the sealing rubber ring 421 improves the sealing property between the limit ring 42 and the limit groove 51 on the clamp ring 5, so that when people inhale, gas filtered by the activated carbon filter box 4 is not easy to be emitted from the clamp ring 5, and the gas is not mixed with outside air, thereby ensuring the purity of the gas inhaled from the nasal cavity; and meanwhile, the normal use effect of the active carbon filtering breathing dustproof mask is ensured.

Referring to fig. 3 and 4, one end of the left ring 52 away from the hinge point is fixedly connected with a first positioning piece 521, one end of the right ring 53 away from the hinge point is fixedly connected with a second positioning piece 531, the first positioning piece 521 is connected with a bolt 5211, and the second positioning piece 531 is provided with a screw hole matched with the bolt 5211. After the snap ring 5 clamps the limiting ring 42, the first positioning piece 521 is opposite to the second positioning piece 531, and the bolt 5211 on the first positioning piece 521 is in threaded connection with the screw hole on the second positioning piece 531, so that the connection tightness between the left ring 52 and the right ring 53 is enhanced, and the connection tightness between the activated carbon filter box 4 and the air suction valve 3 is further improved.

Referring to fig. 3 and 4, the end face of the activated carbon filter cartridge 4 close to the mask body 1 is fixedly connected with a mandril 43, the mask body 1 is provided with a groove 33 inserted with the mandril 43, and when the activated carbon filter cartridge 4 is fixed with the air suction valve 3, the mandril 43 is inserted with the groove 33, which is beneficial to improving the connection stability of the activated carbon filter cartridge 4 and the air suction valve 3.

Referring to fig. 1, activated carbon filter cartridge 4 is kept away from the terminal surface of opening 41 and is installed dust screen 44, and dust screen 44 can carry out the prefilter to the air of inhaling activated carbon filter cartridge 4, prevents that the great impurity of particle diameter from getting into activated carbon filter cartridge 4 in, is favorable to prolonging activated carbon filter cartridge 4's life.

Referring to fig. 2, mask body 1 bonds and has soft bridge of the nose strip 11, and bridge of the nose strip 11 plays the effect of supporting mask and nose, and bridge of the nose strip 11 design effect is better, and the people of being convenient for when wearing the mask, mask body 1 can be better with people's skin laminating, reduce the outside air and get into, be convenient for guarantee the result of use of mask.

The implementation principle of the embodiment 1 of the application is as follows: when the active carbon filtering breathing dustproof mask is used, the mask body 1 is attached to a face of a person, when the mask inhales air, the outside air sequentially flows through the active carbon filtering box 4 and the air inhaling valve 3 to enter the nasal cavity of the person, and the active carbon filtering box 4 adsorbs small particles and harmful gas in the air to filter out safe and breathable air; when the activated carbon filter box 4 is fixed with the air suction valve 3, the limiting groove 51 is matched with the limiting ring 42, when the activated carbon filter box 4 is fixed, the limiting groove 51 of the left ring 52 is clamped with one half ring of the limiting ring 42, the limiting groove 51 of the right ring 53 is clamped with the other half ring of the limiting ring 42, and then the left ring 52 and the right ring 53 are clamped and locked, so that the activated carbon filter box 4 is fixed with the air suction valve 3; after the snap ring 5 clamps the limiting ring 42, the first positioning piece 521 is opposite to the second positioning piece 531, the bolt 5211 on the first positioning piece 521 is in threaded connection with the screw hole on the second positioning piece 531, the ejector rod 43 is inserted into the groove 33, the two air suction valves 3 are detachably connected with the activated carbon filter box 4, the activated carbon filter box 4 is convenient to replace and disassemble, the whole mask does not need to be replaced, and the cost is saved.

Example 2:

referring to fig. 2 and 5, embodiment 2 differs from embodiment 1 in that: the air suction valve 3 is fixedly connected with a threaded pipe 32 with the same diameter as the air suction port 31, the threaded pipe 32 is provided with an external thread, and the activated carbon filter box 4 is fixedly connected with a sleeve 45 in threaded connection with the threaded pipe 32.

The implementation principle of embodiment 2 of the present application is as follows: the sleeve 45 of the activated carbon filter box 4 is in threaded connection with the threaded pipe 32 of the air suction valve 3, so that the activated carbon filter box 4 and the air suction valve 3 can be conveniently fixed, and the sleeve 45 is separated from the threaded pipe 32 when the activated carbon filter box 4 is detached and replaced.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an active carbon filters breathing dust mask, includes mask body (1), its characterized in that: the mask is characterized in that the mask body (1) is fixedly provided with an expiratory valve (2) and a left inspiratory valve and a right inspiratory valve (3), the expiratory valve (2) is provided with an expiratory opening (21), the inspiratory valve (3) is provided with an inspiratory opening (31), and the inspiratory valve (3) is detachably connected with an activated carbon filter box (4).

2. The activated carbon filtering breathing dust mask of claim 1, wherein: activated carbon filter cartridge (4) offer opening (41) with induction port (31) looks adaptation, intake valve (3) are close to induction port (31) department and are equipped with snap ring (5) with opening (41) looks adaptation, spacing groove (51) have been seted up along circumference to snap ring (5) inner circle, snap ring (5) are including left ring (52) and right ring (53), left ring (52) are articulated in one end with right ring (53), left ring (52) and right ring (53) are at the other end joint, activated carbon filter cartridge (4) are close to opening (41) department fixedly connected with and spacing groove (51) spacing ring (42) looks adaptation.

3. The activated carbon filtering breathing dust mask of claim 2, wherein: one end, far away from the hinge point, of the left ring (52) is fixedly connected with a first positioning piece (521), one end, far away from the hinge point, of the right ring (53) is fixedly connected with a second positioning piece (531), the first positioning piece (521) is connected with a bolt (5211), and the second positioning piece (531) is provided with a screw hole matched with the bolt (5211).

4. The activated carbon filtering breathing dust mask of claim 2, wherein: and the outer ring of the limit ring (42) is fixedly connected with a sealing rubber ring (421).

5. The activated carbon filtering breathing dust mask of claim 2, wherein: the end face of the activated carbon filter box (4) close to the mask body (1) is fixedly connected with an ejector rod (43), and the mask body (1) is provided with a groove (33) spliced with the ejector rod (43).

6. The activated carbon filtering breathing dust mask of claim 2, wherein: and a dust screen (44) is fixedly arranged on the end face, far away from the through opening (41), of the activated carbon filter box (4).

7. The activated carbon filtering breathing dust mask of claim 1, wherein: the mask body (1) is bonded with a soft nose bridge strip (11).

8. The activated carbon filtering breathing dust mask of claim 1, wherein: the air suction valve (3) is fixedly connected with a threaded pipe (32) with the same diameter as the air suction port (31), the threaded pipe (32) is provided with external threads, and the activated carbon filter box (4) is fixedly connected with a sleeve (45) in threaded connection with the threaded pipe (32).