CN210813590U

CN210813590U - Protective mask for forest fire fighter

Info

Publication number: CN210813590U
Application number: CN201921621506.9U
Authority: CN
Inventors: 王进发
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2020-06-23
Anticipated expiration: 2029-09-26

Abstract

The utility model discloses a protective face mask that forest fire fighter used, including face guard headstock, face screen, oronasal mask and canister, the face guard headstock is provided with the face screen on openly, and the face guard headstock back is fixed with all around and pastes the face and seals up the pad, and oronasal mask front end is provided with the hickey, pastes and installs the connecting band on the connecting band fixed slot at the face and seals up the pad back, canister includes the jar body in the outside and jar internal portion fixed drier layer, canister layer and the smoke filter layer, and the cotton filter lid has been put to jar body upper end cover, accompanies the cotton filter core between jar body and the cotton filter lid. This protective face mask that forest fire fighter used adopts the inside face guard headstock that sets up the insulating layer of face guard cooperation of superstructure, reduces the conduction that the heat passes through the face guard body, improves facial whole protection effect, wraps up whole face through the face guard headstock, plays facial comprehensive protection effect, and adopts and carry out the sealing of face guard at silica gel, improves sealed effect, avoids the flue gas from the side entering face guard.

Description

Protective mask for forest fire fighter

Technical Field

The utility model relates to a safety inspection equipment technical field specifically is a protective face mask that forest fire fighter used.

Background

Forest fires are the most dangerous enemies of forests and the most terrible disasters of forests, and not only can burn a large number of forests, but also can damage animals in the forests and further seriously harm the life and property safety of human beings. The forest fire fighter stays in the forest fire prevention for a long time in the same line, when a fire disaster happens, the forest fire fighter needs to carry a protective mask, and the fire scene is reached to the first time to rescue and relief a disaster, but the existing protective mask is simple in structure, only has a layer of flame-retardant plastic protective cover, and can not isolate the invasion of outside temperature sensing, and although the existing mask can disinfect and filter smoke in the breathing process, the dust on the outside can easily enter the large canister to normally control and circulate due to the influence.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a protective face mask that forest fire fighter used to solve the problem that proposes in the above-mentioned background.

In order to achieve the above object, the utility model provides a following technical scheme: a protective mask for forest fire fighters comprises a mask headstock, a face screen, an oral-nasal mask and a canister, wherein the face screen is arranged on the front of the mask headstock, a raised oral-nasal mask is arranged on the mask headstock below the face screen, a face-attached sealing gasket is fixed on the periphery of the back of the mask headstock, a connecting belt fixing groove is formed in the mask headstock outside the face-attached sealing gasket, an oral-nasal mask sealing gasket is arranged on the periphery of the back of the oral-nasal mask, a one-way pressure relief hole is formed in the side surface of the oral-nasal mask, a threaded connector is arranged at the front end of the oral-nasal mask, the canister is screwed on the threaded connector, and a connecting belt is arranged on;

the canister comprises a canister body on the outer side, a drying agent layer, a canister layer and a smoke filter layer which are fixed in the canister body, a screw joint is fixed at the rear end of the canister body, the drying agent layer is arranged on the rear side of the interior of the canister body, the canister layer and the smoke filter layer are arranged on one side above the drying agent layer, a filter cotton cover is sleeved on the upper end of the canister body, and a filter cotton core is clamped between the canister body and the filter cotton cover.

Preferably, the outside casing of face guard headstock and oronasal mask adopts ABS engineering plastics material, and the face screen that sets up on the face guard headstock adopts double-deck PC polycarbonate material to constitute, and the sealed pad of the face of pasting that the face guard headstock rear side set up fills up and the sealed pad of oronasal mask rear side setting is the silica gel material, and the connecting band of face guard headstock rear side installation is high-elastic nylon simultaneously to face guard headstock inboard is provided with the insulating layer of the cotton material of one deck IXPE bubble.

Preferably, the bottom plate behind the tank body is of an arc-shaped structure, a screw joint in the middle of the bottom of the tank body can be screwed on the threaded joint, and the rear end of the screw joint is not in contact with the drying agent layer in the tank body.

Preferably, the drying agent layer arranged in the tank body is a silica gel drying agent, the toxin filtering layer is formed by impregnating activated carbon with an activator, the smoke filtering layer is made of superfine fiber materials, a porous screen plate is arranged between the toxin filtering layer and the smoke filtering layer, and the tank body top plate above the smoke filtering layer is provided with air holes.

Preferably, the filter pulp core comprises the first barrier layer that the front side set up, the adsorbed layer that the middle part set up and the second barrier layer three layer construction that the rear side set up, and first barrier layer adopts the filter pulp material more than 5 μm of separation, and the adsorbed layer adopts the activated carbon fiber filter pulp material more than 1 μm of separation, and the second barrier layer adopts the filter pulp material of more than 0.075 μm of separation to constitute.

Preferably, the rear end of the filter cotton cover is provided with an inward concave clamping groove, the filter cotton cover is clamped on the tank body through the clamping groove, and meanwhile, a gap is formed between an air hole formed in the middle of the upper end of the filter cotton cover and a filter cotton core fixed inside the filter cotton cover.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the face guard of upper strata structure cooperation inside setting up the face guard headstock of insulating layer reduces the conduction of heat through the face guard body, improves facial whole protection effect.

2. The whole face is wrapped by the mask head frame to achieve the comprehensive protection effect of the face, and the mask is sealed by silica gel, so that the sealing effect is improved, and smoke is prevented from entering the mask from the side surface;

3. the adoption sets up the dry layer of one deck in traditional canister inside, and the water that produces is breathed in the adsorbable avoids appearing the water smoke and influences the use, sets up the filter core simultaneously and can carry out first processing to dust particle in the upside, avoids the dust to get into canister influence and uses.

Drawings

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

FIG. 2 is a schematic view of the back side of the structure of the present invention;

FIG. 3 is a schematic side view of the structure of the present invention;

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

fig. 5 is a schematic view of the filter element of the structure of the present invention.

In the figure: 1. a mask head frame; 2. a face screen; 3. an oronasal mask; 4. a one-way pressure relief hole; 5. connecting belt fixing grooves; 6. a face-mounted sealing gasket; 7. an oronasal mask seal; 8. a threaded interface; 9. a canister; 10. a connecting belt; 11. a desiccant layer; 12. a tank body; 13. a poison filtering layer; 14. a smoke filter layer; 15. filtering cotton core; 16. a cotton filter cover; 17. a card slot; 18. a screw joint; 19. a first barrier layer; 20. an adsorption layer; 21. a second barrier layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, a face shield for forest fire fighters comprises a face shield head frame 1, a face screen 2, a mouth-nose mask 3 and a canister 9, wherein the face shield 2 is arranged on the front surface of the face shield head frame 1, a raised mouth-nose mask 3 is arranged on the face shield head frame 1 below the face screen 2, the face screen 2 arranged on the face shield head frame 1 is made of double-layer PC polycarbonate, the shells outside the face shield head frame 1 and the mouth-nose mask 3 are made of ABS engineering plastic, a heat insulation layer made of IXPE foam is arranged on the inner side of the face shield head frame 1, heat is conducted to the outer screens of the face shield head frame 1 and the face shield 2 on the outer side, a good heat insulation effect is formed by the heat insulation layer made of IXPE foam and the inner screen structure of the face screen 2, a face-to-seal gasket 6 is fixed around the back surface of the face shield head frame 1, so that the back of the face shield, prevent the side from leaking gas and entering the flue gas, the mouth and nose mask sealing gasket 7 is arranged around the back of the mouth and nose mask 3, separate the facial space and the mouth and nose space, prevent the respiratory gas from influencing the face screen 2, and the one-way pressure relief hole 4 is arranged on the side of the mouth and nose mask 3, the connection between the facial space and the mouth and nose space is established, the pressure balance can be carried out through the mouth and nose mask 3 after the facial space enters the mouth and nose space during the installation, the gas oppression feeling can not be generated, and the influence of the high temperature on the internal space can be avoided, the connecting band fixing groove 5 is arranged on the mask head frame 1 at the outer side of the face sealing gasket 6, the connecting band 10 is arranged on the connecting band fixing groove 5, five groups are symmetrically arranged on the connecting band fixing groove 5 arranged at the rear part, the two groups at the lower part are connected, a group of connecting bands 10 at the lower part are fixed on the hindbrain to ensure the fit of the face mask and the face, a threaded interface 8 is arranged at the front end of the oronasal mask 3, and a canister 9 is screwed on the threaded interface 8 to filter smoke and poison;

the canister 9 comprises a canister body 12 at the outer side, a drying agent layer 11, a poison filtering layer 13 and a smoke filtering layer 14 which are fixed in the canister body 12, a screw joint 18 is fixed at the rear end of the canister body 12, the drying agent layer 11 is arranged at the rear side in the canister body 12, the poison filtering layer 13 and the smoke filtering layer 14 are arranged at one side above the drying agent layer 11, the drying agent layer 11 arranged in the canister body 12 is silica gel drying agent, the poison filtering layer 13 is formed by impregnating activated carbon with catalyst, the smoke filtering layer 14 is made of superfine fiber material, a porous screen plate is arranged between the poison filtering layer 13 and the smoke filtering layer 14, and a vent hole is arranged on the top plate of the canister body 12 above the smoke filtering layer 14, so that poison smoke, poison fog, carbon monoxide, hydrogen cyanide, hydrogen chloride, acrolein, hydrogen fluoride, nitrogen oxide, hydrogen bromide, sulfur dioxide and common poison gas in a fire scene can be effectively prevented from damaging people, and water vapor generated by breathing can be absorbed by the drying agent, the upper end of the tank body 12 is sleeved with a filter cotton cover 16, and a filter cotton core 15 is clamped between the tank body 12 and the filter cotton cover 16.

Specifically, as shown in fig. 3 to 4, the bottom plate at the rear of the tank 12 is of an arc-shaped structure, the screw joint 18 at the middle of the bottom of the tank 12 can be screwed on the screw thread connector 8, and the rear end of the screw joint 18 is not in contact with the desiccant layer 11 in the tank 12, the rear end of the filter cotton cover 16 is provided with an inward-recessed clamping groove 17, the filter cotton cover 16 is clamped on the tank 12 through the clamping groove 17, the filter cotton cover 16 is convenient to detach from the tank 12 and replace the filter cotton core 15, meanwhile, a gap is provided between the air hole formed in the middle of the upper end of the filter cotton cover 16 and the filter cotton core 15 fixed inside the filter cotton cover 16, the air inlet and the filter cotton core 15 are provided with a gap to make the filter cotton core 15 filter more uniformly as much as possible, the smoke enters the space at the upper end of the filter cotton core 15, then the dust in the smoke enters the filter cotton core 15 for filtering, and the gas passes through the, Inside filtering poison layer 13 and drier layer 11 filtered poison, filtered cigarette and handled the cavity that enters into the screwed joint 18 top, later get rid of through screwed joint 18, guarantee filterable entering more, avoid because the laminating is just middle part filter together, the filter effect is better.

Specifically, as shown in fig. 4-5, the filter cotton core 15 comprises a first barrier layer 19 arranged on the front side, an adsorption layer 20 arranged on the middle part, and a second barrier layer 21 three-layer structure arranged on the rear side, wherein the first barrier layer 19 adopts a filter cotton material with a barrier of 5 μm or more, non-oily dust with a barrier of 5 μm or more is effective, the adsorption layer 20 adopts an activated carbon fiber filter cotton material with a barrier of 1 μm or more, non-oily fine dust with a barrier of 1 μm or more is effective, the second barrier layer 21 adopts a filter cotton material with a barrier of 0.075 μm or more, non-oily fine dust with a barrier of 0.075 μm or more is effective, and dust in smoke is effectively filtered.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a protective face mask that forest fire fighter used, includes face guard headstock (1), face shield (2), oronasal mask (3) and canister (9), its characterized in that: the face mask is characterized in that the front face of a face mask head frame (1) is provided with a face screen (2), a raised mouth-nose mask (3) is arranged on the face mask head frame (1) below the face screen (2), a face-pasting sealing gasket (6) is fixed on the periphery of the back face of the face mask head frame (1), a connecting band fixing groove (5) is arranged on the face mask head frame (1) outside the face-pasting sealing gasket (6), a mouth-nose mask sealing gasket (7) is arranged on the periphery of the back face of the mouth-nose mask (3), a one-way pressure relief hole (4) is arranged on the side face of the mouth-nose mask (3), a threaded connector (8) is arranged at the front end of the mouth-nose mask (3), a toxin filtering tank (9) is screwed on the threaded connector;

canister (9) is including the jar body (12) of outside and jar internal portion fixed drier layer (11), toxin filtering layer (13) and the tobacco layer (14) of jar body (12), and jar body (12) rear end is fixed with screwed joint (18), and jar internal portion rear side of body (12) is provided with drier layer (11), and one side of drier layer (11) top is provided with toxin filtering layer (13) and tobacco filtering layer (14), and the cover has been put to jar body (12) upper end cover has strained cotton lid (16), presss from both sides between jar body (12) and the cotton filtering lid (16) and strains cotton core (15).

2. A protective mask for forest fire fighters as set forth in claim 1, wherein: face guard headstock (1) and the outside casing of mouth nose cup (3) adopt ABS engineering plastics material, and face screen (2) that set up on face guard headstock (1) adopt double-deck PC polycarbonate material to constitute, and the sealed pad (7) of mouth nose cup (3) rear side setting of face-attaching sealed pad (6) that face guard headstock (1) rear side set up and mouth nose cup (3) rear side are the silica gel material, connecting band (10) of face guard headstock (1) rear side installation are high-elastic nylon simultaneously, and face guard headstock (1) inboard is provided with the insulating layer of one deck IXPE bubble cotton material.

3. A protective mask for forest fire fighters as set forth in claim 1, wherein: the bottom plate behind the tank body (12) is of an arc-shaped structure, a screw joint (18) in the middle of the bottom of the tank body (12) can be screwed on the threaded connector (8), and the rear end of the screw joint (18) is not in contact with the drying agent layer (11) in the tank body (12).

4. A protective mask for forest fire fighters as set forth in claim 1, wherein: the drying agent layer (11) arranged in the tank body (12) is a silica gel drying agent, the toxin filtering layer (13) is formed by impregnating activated carbon with an activator, the smoke filtering layer (14) is formed by superfine fiber materials, a porous screen plate is arranged between the toxin filtering layer (13) and the smoke filtering layer (14), and an air hole is formed in a top plate of the tank body (12) above the smoke filtering layer (14).

5. A protective mask for forest fire fighters as set forth in claim 1, wherein: filter cotton core (15) and constitute by first barrier layer (19) that the front side set up, adsorbed layer (20) that the middle part set up and second barrier layer (21) three layer construction that the rear side set up, and first barrier layer (19) adopt the filter pulp material more than the separation 5 mu m, and activated carbon fiber filter pulp material more than the separation 1 mu m is adopted in adsorbed layer (20), and second barrier layer (21) adopt the filter pulp material more than the separation 0.075 mu m to constitute.

6. A protective mask for forest fire fighters as set forth in claim 1, wherein: the rear end of the filter cotton cover (16) is provided with an inward concave clamping groove (17), the filter cotton cover (16) is clamped on the tank body (12) through the clamping groove (17), and meanwhile, a gap is formed between an air hole formed in the middle of the upper end of the filter cotton cover (16) and a filter cotton core (15) fixed inside the filter cotton cover (16).