CN215461534U

CN215461534U - Can prevent gas mask of dust granule

Info

Publication number: CN215461534U
Application number: CN202122018524.1U
Authority: CN
Inventors: 黄欣
Original assignee: Shanghai Shoufu Composite Material Co ltd
Current assignee: Shanghai Shoufu Composite Material Co ltd
Priority date: 2021-08-25
Filing date: 2021-08-25
Publication date: 2022-01-11
Anticipated expiration: 2031-08-25

Abstract

The utility model discloses a gas mask capable of preventing dust particles, which comprises: the mask comprises a silica gel cover, a transparent mask is fixed at the front end of the silica gel cover, a sealing side cover is connected at the rear end of the silica gel cover, a binding band is connected with the outer wall of the sealing side cover, and an oral-nasal mask is connected at the lower end of the inner wall of the transparent mask; the connecting pipe, it is connected the lower extreme outer wall of oronasal mask, the fixed slot has been seted up to the front end inner wall of connecting pipe, the shrouding has been laid to the front end inboard of connecting pipe, the inboard surface of shrouding is connected with the spring, and the other end of spring is connected the rear end inner wall of connecting pipe. This can prevent dust particle's respirator is provided with during the fixture block passes through the extrusion of straining poison box rear end to shrouding and spring and inserts the fixed slot to accomplish fixedly in the fixed slot through the rotation, thereby make the firm installation in the connecting pipe front end of straining poison box, the filtration poison box of avoiding the motion to lead to rocks and produces the gap between the connecting pipe, and the dismouting is all comparatively convenient, easy to use.

Description

Can prevent gas mask of dust granule

Technical Field

The utility model relates to the technical field of gas masks, in particular to a gas mask capable of preventing dust particles.

Background

Gas masks are used as personal protective equipment to provide effective protection to the respiratory organs, eyes and facial skin of a person. The mask is an important component of a gas mask and is a component that isolates the face of a person from the outside contaminated air. The gas mask consists of a face mask, a gas-guide tube and a canister, and the face mask can be directly connected with the canister for use or connected with the canister for use by the gas-guide tube. The gas mask can be applied to chemical industry, warehouses, scientific research and various toxic and harmful operating environments by respectively selecting various types of gas canisters according to protection requirements. In the area with higher dust particle density, the whole mask with better dust particle prevention effect is usually worn for protection.

The gas mask on the market generally adopts the buckle to fix the poison filtering box in use, and fixed knot constructs comparatively simply, and the junction produces the gap easily and leads to during toxic gas or dust get into the face guard to the poison filtering box drops because of rocking easily when wearing the gas mask and running, causes the potential safety hazard, for this reason, we propose a can prevent dust particle's gas mask.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a gas mask capable of preventing dust particles, and aims to solve the problems that a gas mask in the market proposed in the background art is usually fixed by a buckle in use, the fixing structure is simple, a gap is easily generated at the joint to cause toxic gas or dust to enter the mask, and the gas mask easily falls off due to shaking when the gas mask is worn and runs, so that potential safety hazards are caused.

In order to achieve the purpose, the utility model provides the following technical scheme: a respirator that is resistant to dust particles, comprising:

the mask comprises a silica gel cover, a transparent mask is fixed at the front end of the silica gel cover, a sealing side cover is connected at the rear end of the silica gel cover, a binding band is connected with the outer wall of the sealing side cover, and an oral-nasal mask is connected at the lower end of the inner wall of the transparent mask;

the connecting pipe, it is connected the lower extreme outer wall of oronasal mask, the fixed slot has been seted up to the front end inner wall of connecting pipe, the shrouding has been laid to the front end inboard of connecting pipe, the inboard surface of shrouding is connected with the spring, and the other end of spring is connected the rear end inner wall of connecting pipe, the inside of connecting pipe is inlayed and is equipped with the intake pipe, first filter screen has been laid with the junction of connecting pipe to the intake pipe, the front end of connecting pipe is connected with the poison filtering box, the rear end outer wall of poison filtering box is fixed with the fixture block.

Preferably, the transparent mask forms a sealing structure through the sealing side cover and the silica gel cover, and the transparent mask is matched with the silica gel cover in shape structure.

Preferably, the toxin filtering box forms a clamping mechanism between the clamping block and the fixing groove and between the fixing groove and the connecting pipe, the fixing groove and the sealing plate are parallel to each other, and an elastic telescopic structure is formed between the sealing plate and the spring.

Preferably, the oronasal mask is further provided with:

the front end of the one-way air valve is connected with an exhalation port, the exhalation port is embedded at the lower end of the outer wall of the transparent face mask, and the outer wall of the upper end of the oral-nasal mask is provided with a flow guide hole.

Preferably, the exhalation port forms a communicating structure with the oronasal mask through the one-way air valve, and forms a communicating structure with the diversion hole.

Preferably, the toxin filtering box is further provided with:

the second filter screen, it is laid the front end surface of straining poison box, the activated carbon layer has been laid to the inboard of second filter screen, the inboard packing on activated carbon layer has the catalyst layer, the inboard on catalyst layer is connected with the chemical reaction layer, the pellicle has been laid to the inboard on chemical reaction layer.

Preferably, the second filter screen and the semipermeable membrane are parallel to each other, and the activated carbon layer and the catalyst layer and the chemical reaction layer are parallel to each other.

Compared with the prior art, the utility model has the beneficial effects that: this can prevent dust particle's respirator is provided with during the fixture block passes through the extrusion of straining poison box rear end to shrouding and spring and inserts the fixed slot to accomplish fixedly in the fixed slot through the rotation, thereby make the firm installation in the connecting pipe front end of straining poison box, the filtration poison box of avoiding the motion to lead to rocks and produces the gap between the connecting pipe, and the dismouting is all comparatively convenient, easy to use.

The arranged transparent face mask is convenient for a user to observe the surrounding environment when wearing the face mask, the eyes are directly protected through the transparent face mask, the protection range of the gas mask is expanded, the sealing side mask is used for filling the part, which is not tightly attached to the face, of the silica gel mask, and toxic and harmful gas is prevented from entering the transparent face mask; the one-way air valve that sets up is used for when the user exhales with gaseous gas through exhaling mouthful discharge gas mask through one-way air valve, avoids inside poisonous and harmful gas gets into gas mask through exhaling mouthful, and inside filtered air gets into the oral-nasal mask, gets into transparent face guard through the water conservancy diversion hole, forms the circulation, prevents that eyes are dry and astringent to influence the sight.

The active carbon layer that sets up carries out physical adsorption to poisonous agent vapour such as fine dust and sarin, mustard gas, and catalyst layer and chemical reaction layer can carry out catalytic hydrolysis reaction to poisonous gas such as cyanogen chloride, hydrogen cyanide, arsine, make this type of poisonous gas by hydrolysis, lose the toxicity to reach the effect of preventing dust and gas defense.

Drawings

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

FIG. 2 is a side plan view of a portion of the oronasal mask of the present invention;

FIG. 3 is a schematic cross-sectional perspective view of a connecting tube according to the present invention;

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

FIG. 5 is a schematic cross-sectional plan view of the canister of the present invention.

In the figure: 1. a silicone cover; 2. a transparent mask; 3. sealing the side cover; 4. a belt; 5. an oronasal mask; 6. a one-way air valve; 7. an exhalation port; 8. a flow guide hole; 9. a connecting pipe; 10. a poison filtering box; 11. closing the plate; 12. fixing grooves; 13. a spring; 14. an air inlet pipe; 15. a first filter screen; 16. a second filter screen; 17. a clamping block; 18. an activated carbon layer; 19. a catalyst layer; 20. a chemical reaction layer; 21. a semi-permeable membrane.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a respirator that is resistant to dust particles, comprising: the mask comprises a silica gel cover 1, wherein a transparent mask 2 is fixed at the front end of the silica gel cover 1, the rear end of the silica gel cover 1 is connected with a sealing side cover 3, the outer wall of the sealing side cover 3 is connected with a binding belt 4, the transparent mask 2 forms a sealing structure with the silica gel cover 1 through the sealing side cover 3, and the transparent mask 2 is matched with the silica gel cover 1 in shape structure; the transparent face mask 2 is convenient for a user to observe the surrounding environment when wearing the mask, the eye part is directly protected through the transparent face mask 2, the protection range of the gas mask is expanded, and the sealing side mask 3 is used for filling the part of the silica gel mask 1 which is not tightly attached to the face part, so that toxic and harmful gas is prevented from entering the transparent face mask 2; the lower end of the inner wall of the transparent mask 2 is connected with an oronasal mask 5; the one-way air valve 6 is connected to the front end of the oronasal mask 5, the front end of the one-way air valve 6 is connected with an exhalation port 7, the exhalation port 7 is embedded at the lower end of the outer wall of the transparent face mask 2, and the outer wall of the upper end of the oronasal mask 5 is provided with a flow guide hole 8; the exhalation port 7 forms a communicating structure with the oronasal mask 5 through the one-way air valve 6, and the oronasal mask 5 forms a communicating structure with the diversion hole 8; the arranged one-way air valve 6 is used for discharging gas out of the gas mask through the exhalation port 7 by a user through the one-way air valve 6 when the user exhales, so that toxic and harmful gas is prevented from entering the interior of the gas mask through the exhalation port 7, and filtered air enters the oral-nasal mask 5 and then enters the interior of the transparent mask 2 through the flow guide holes 8 to form circulation, so that the influence of dryness on eyes on sight is prevented; connecting pipe 9, its lower extreme outer wall of connecting at oronasal mask 5, fixed slot 12 has been seted up to the front end inner wall of connecting pipe 9, shrouding 11 has been laid to the front end inboard of connecting pipe 9, and the inboard surface of shrouding 11 is connected with spring 13, and spring 13's the other end is connected at the rear end inner wall of connecting pipe 9, and the inside of connecting pipe 9 is inlayed and is equipped with intake pipe 14, and first filter screen 15 has been laid with the junction of connecting pipe 9 to intake pipe 14.

Referring to fig. 4-5, a respirator for protecting against dust particles includes: the front end of the connecting pipe 9 is connected with a toxin filtering box 10, and the outer wall of the rear end of the toxin filtering box 10 is fixed with a clamping block 17; the toxin filtering box 10 forms a clamping mechanism between the clamping block 17 and the fixing groove 12 and the connecting pipe 9, the fixing groove 12 and the closing plate 11 are parallel to each other, and an elastic telescopic structure is formed between the closing plate 11 and the spring 13; the arranged fixture block 17 is extruded by the rear end of the toxin filtering box 10 to the closing plate 11 and the spring 13 and is inserted into the fixing groove 12, and the toxin filtering box 10 is fixed in the fixing groove 12 through rotation, so that the toxin filtering box 10 is stably arranged at the front end of the connecting pipe 9, a gap between the shake of the toxin filtering box 10 and the connecting pipe 9 caused by movement is avoided, and the toxin filtering box is convenient to assemble and disassemble and easy to use; the second filter screen 16 is laid on the front end surface of the toxin filtering box 10, an activated carbon layer 18 is laid on the inner side of the second filter screen 16, a catalyst layer 19 is filled on the inner side of the activated carbon layer 18, a chemical reaction layer 20 is connected to the inner side of the catalyst layer 19, and a semipermeable membrane 21 is laid on the inner side of the chemical reaction layer 20; the second filter screen 16 and the semipermeable membrane 21 are parallel to each other, and the activated carbon layer 18, the catalyst layer 19 and the chemical reaction layer 20 are parallel to each other; the active carbon layer 18 that sets up carries out physical adsorption to poisonous agent vapour such as fine dust and sarin, mustard gas, and catalyst layer 19 and chemical reaction layer 20 can carry out catalytic hydrolysis reaction to poisonous gas such as cyanogen chloride, hydrogen cyanide, arsine, make this type of poisonous gas be hydrolyzed, lose toxicity to reach the effect of preventing dust and gas defense.

The working principle is as follows: for the gas mask capable of preventing dust particles, firstly, a user closely attaches a silica gel cover 1 to the outline of the face, so that an oronasal mask 5 can cover and cover an oronasal part, and a transparent mask 2 can cover the face of the user, then the placement position of a sealing side cover 3 is adjusted, so that no gap is left between the silica gel cover 1 and the face, then a belt 4 is sleeved on the head, the position of the gas mask on the head is fixed through a buckle on the belt 4, then the user connects a gas filter box 10 with a connecting pipe 9 which is connected at the lower end of the oronasal mask 5 and penetrates through the transparent mask 2, the front end of the connecting pipe 9 is sealed with a sealing plate 11 through a spring 13, the sealing plate 11 is propped against the sealing plate 11 without using a spring 13, so that the front end of the connecting pipe 9 is sealed by the sealing plate 11, when the gas filter box 10 needs to be connected, the rear end of the gas filter box 10 and a clamping block 17 are matched with the positions of the sealing plate 11 and a fixing groove 12 at the front end of the connecting pipe 9, the poison filtering box 10 is extruded towards the inside of the connecting pipe 9, the sealing plate 11 extrudes the spring 13 to deform inwards, the poison filtering box 10 is rotated at the moment, the clamping block 17 rotates around the fixing groove 12 and is clamped to a fixed position, the poison filtering box 10 is loosened, the spring 13 pushes the sealing plate 11 to fix the poison filtering box 10, after the poison filtering box 10 is installed, air enters from a second filter screen 16 at the front end of the poison filtering box 10, enters the inside of the connecting pipe 9 from a gap between the rear end of the poison filtering box 10 and the sealing plate 11 after being purified by the poison filtering box 10, enters the air inlet pipe 14 through an opening of the air inlet pipe 14 in the connecting pipe 9, finally enters the nose mask 5 through the first filter screen 15 to form a better filtering effect, finally, the poison filtering box 10 filters dust particles with larger volume through the second filter screen 16 at the front end, and performs physical adsorption on fine dust, poison steam such as sarin sand forest, mustard gas and the like through the internal active carbon layer 18, carry out catalytic hydrolysis reaction to poisonous gas such as cyanogen chloride, hydrogen cyanide, arsine through inboard catalyst layer 19 of active carbon and chemical reaction layer 20, make this type of poisonous gas be hydrolyzed, lose toxicity, filterable air rethread semi-permeable membrane 21 filters, thereby reach the effect of preventing dust and gas defence, the user is after inhaling filterable air through connecting pipe 9, make gas at transparent face guard 2 inner loop through water conservancy diversion hole 8, and through the one-way air valve 6 and the outside expired gas of exhaling mouth 7 of mouth nose cup 5 front end connection, the one-way valve can avoid exhaling mouthful 7 department poisonous and harmful gas dust etc. and enter into in the mouth nose cup 5.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A respirator that protects against dust particles, comprising:

the mask comprises a silica gel cover (1), wherein a transparent mask (2) is fixed at the front end of the silica gel cover (1), a sealing side cover (3) is connected at the rear end of the silica gel cover (1), a binding band (4) is connected with the outer wall of the sealing side cover (3), and an oronasal mask (5) is connected at the lower end of the inner wall of the transparent mask (2);

connecting pipe (9), it is connected the lower extreme outer wall of oronasal mask (5), fixed slot (12) have been seted up to the front end inner wall of connecting pipe (9), shrouding (11) have been laid to the front end inboard of connecting pipe (9), the inboard surface of shrouding (11) is connected with spring (13), and the other end of spring (13) is connected the rear end inner wall of connecting pipe (9), the inside of connecting pipe (9) is inlayed and is equipped with intake pipe (14), first filter screen (15) have been laid with the junction of connecting pipe (9) intake pipe (14), the front end of connecting pipe (9) is connected with virus filtering box (10), the rear end outer wall of virus filtering box (10) is fixed with fixture block (17).

2. A respirator as claimed in claim 1 which is resistant to dust particles, wherein: the transparent mask (2) forms a sealing structure with the silica gel cover (1) through the sealing side cover (3), and the transparent mask (2) is matched with the appearance structure of the silica gel cover (1).

3. A respirator as claimed in claim 1 which is resistant to dust particles, wherein: the toxin filtering box (10) forms a clamping mechanism with the connecting pipe (9) through the clamping block (17) and the fixing groove (12), the fixing groove (12) is parallel to the sealing plate (11), and an elastic telescopic structure is formed between the sealing plate (11) and the spring (13).

4. A respirator as claimed in claim 1 which is resistant to dust particles, wherein: the mouth-nose mask (5) is also provided with:

the front end of the oronasal mask (5) is connected with a one-way air valve (6), the front end of the one-way air valve (6) is connected with an exhalation port (7), the exhalation port (7) is embedded at the lower end of the outer wall of the transparent mask (2), and the outer wall of the upper end of the oronasal mask (5) is provided with a flow guide hole (8).

5. The respirator of claim 4, wherein the respirator is further characterized by: the expiration port (7) forms a communicating structure with the oronasal mask (5) through the one-way air valve (6), and forms a communicating structure between the oronasal mask (5) and the diversion hole (8).

6. A respirator as claimed in claim 1 which is resistant to dust particles, wherein: the toxin filtering box (10) is also provided with:

the second filter screen (16), it is laid the front end surface of straining poison box (10), activated carbon layer (18) have been laid to the inboard of second filter screen (16), the inboard packing of activated carbon layer (18) has catalyst layer (19), the inboard of catalyst layer (19) is connected with chemical reaction layer (20), pellicle (21) have been laid to the inboard of chemical reaction layer (20).

7. The respirator of claim 6, wherein the respirator is further characterized by: the second filter screen (16) and the semipermeable membrane (21) are parallel to each other, and the activated carbon layer (18) and the catalyst layer (19) and the chemical reaction layer (20) are parallel to each other.