KR101513859B1 - Hood type gas mask - Google Patents

Abstract

The present invention relates to a hood type gas mask, comprising a hood having a visor lens on the front; a blocking membrane which is formed on the lower end part of the inside hood to block the head of users from the outside; a nose mask which is installed in the inner surface of the hood to block the nose and mouth of users from the inside of the hood; an exhaling valve cover which is matched with the mouth of the user and is accordingly formed on the front of the hood; an exhaling valve connection hole unit which is penetrated into the nose mask to connected to the exhaling valve cover; an exhaling valve which is installed between the exhaling valve connection hole unit and the exhaling valve cover; purifying containers which are installed on the both sides of the hood with respect to the exhaling valve cover; and a webbing which is connected to the purifying container penetrated into the nose mask and accordingly connected to the purifying container and a connection hole unit of the purifying container and is accordingly tightened, thereby pressurizing the hood and enabling the nose mask to sticking to the mouth and nose of the users wherein the exhaling valve connection hole unit and the connection unit of the purifying container are independently separated.

Description

Hood type gas mask {HOOD TYPE GAS MASK}

The present invention relates to a hood type gas mask, and more particularly, to a hood type gas mask which can minimize the volume and is easy to store and carry.

The respirator is worn to protect the face from the inhaling of harmful substances in the air and can be distinguished into a full face type, a half face type, and a hood type according to its structure.

The full face type gas mask has a face piece which is in close contact with the entire face of the wearer to prevent the surrounding air from entering, a face lens formed on the front part so that the wearer can look ahead, An inhalation valve installed in the canister to allow the air to enter the anterior segment and prevent the excretion of the wearer's air, and the air exhaled by the wearer to the outside of the anterior segment An exhalation valve provided at the front anterior part, and a head harness surrounding the back of the wearer's head so as to bring the front anterior part into contact with the wearer's face.

Such a full face type gas mask provides a wide field of view to the wearer and is used for fire fighting, military use and the like because it has a structure in which the respirator face is not peeled off even when the user wears it.

In addition, the half face type gas mask is similar to the full face type described above, but has a structure in which a purifier, an intake valve, an exhaust valve, and a control strap are installed in a nosemask for isolating only the wearer's mouth and nose from the outside. Such a half face type gas mask has a structure suitable for workers who work in a high concentration of atmospheric dust, such as a coal mine, a chemical plant, and a construction site.

On the other hand, hood type gas masks are mainly used in places where a large number of civilians such as subways, department stores, etc. are gathered to be used for evacuation and rescue in an emergency such as a fire. A face-type hood that surrounds the entire head is equipped with a facial lens, a nose mask, a canister, an intake valve, an exhaust valve, and a control strap.

The prior art of this hood type gas mask will be described with reference to Fig. 1 is a sectional view showing a hood type conventional respirator. Referring to the drawings, a hood type respirator according to the prior art is provided with a face lens 2 on a hood 1, and a purifier 4 on a vent hole 3 formed in a hood 1. In addition, a ring-shaped shielding film 5 for inserting the head of the wearer into the hood 1 and isolating the head from the outside is formed inside the hood 1, and an adjusting strap 6 for tightly attaching a nose mask for isolating the wearer's mouth and nose, Respectively.

The vent hole 3 and the purifying column 4 are fixed by a metal band 7 so that the purifying column 4 and the hood 1 can be permanently fixed. The protrusion 4a is inserted into the vent hole 3 of the hood 1 and is connected to the nose mask 8 formed inside the hood 1.

As described above, the hood type respirator according to the prior art is stored in a specific place and is folded to minimize the volume occupied by the respirator. To this end, the hood is made of heat-resistant heat-resistant material such as aramid fabric, and the hood can be folded to minimize its volume.

Particularly, in recent years, the amount of purified air is increased so that the wearer can breathe with a low resistance, and even if the purifier does not perform its original role, another purifier can purify the contaminated air, A gas mask having two canisters is being developed.

The gas mask having the two purifiers is provided with a purifier fixed plate having a plate shape so that the purifier can be stably fixed to the hood. In addition, an exhaust valve is provided at the center of the purifying column fixing plate, and a purifying column is installed on both sides of the purifying column fixing plate with respect to the exhaust valve.

However, the hood-type respirator having two cleansing tanks on the cleansing tank fixing plate has the shape of a plate on which the cleansing tank fixing plate is not bent. When the respirator is worn, the nose mask is not closely attached to the wearer's face, Even if the adjustment strap is adjusted to fit the wearer's head, the fixing plate is not deformed to conform to the wearer's face shape, so that the nose mist is not brought into close contact with the wearer's face, There is a risk of flowing through a gap formed between the nose masks.

In addition, since the stationary plate is not bent, the volume of the stationary plate can not be reduced during storage of the gasket, thereby limiting the volume of the entire gasket, thereby occupying a lot of space for storing the gasket, There is a problem that a large number of gas masks can not be provided.

In order to maintain the performance of the purifier, the purifier must be replaced at regular intervals. However, since the gas barrier and the purifier are permanently fixed by the metal band, the purifier can not be replaced, There is a problem that needs to be replaced.

KR, B, 10-1301444 (2013.08.22)

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a hood type gas mask having a hood for minimizing the volume of the hood for storing the hood type gas hood.

It is also an object of the present invention to provide a hood type gas mask which can easily attach the hood to the wearer's head by operating the adjusting strap when the wearer wears the hood.

It is also an object of the present invention to provide a hood type gas mask which can be installed in a cleansing container fixing plate in an airtight manner and can easily separate the cleansing container as needed.

It is also an object of the present invention to provide a hood type gas mask which can securely fix the nose mask, the hood, and the stationary cylinder fixing plate to each other.

According to an aspect of the present invention, there is provided a hood comprising: a hood having a front face lens; a blocking film formed on an inner lower end of the hood to isolate the entire head from the outside; An exhaust valve cover provided on the front surface of the hood so as to correspond to the mouth of the wearer; and an exhaust valve connector which is coupled to the exhaust valve cover through the nose mask, An exhaust valve installed between the exhaust valve connection unit and the exhaust valve cover, a purifier provided on both sides of the front face of the hood with respect to the exhaust valve cover, and a purifier, which penetrates the purifier and penetrates the purifier, The connection port unit and the purifier port connection unit, And a webbing for bringing the gonzone mask into close contact with the mouth and nose of the wearer, wherein the exhaust valve connector unit and the purifier tube connector unit are separated from each other.

Here, the purging cylinder port unit may include a penetration portion through which the hood and the nose mask are communicated and which has a communication hole communicating with the purging container, and a through-hole formed at one side of the penetration portion and having a larger diameter than the penetration portion, And a cleansing bar binding ring connected to the webbing and connected to the penetration portion penetrating through the hood, wherein the binding ring is formed on the other side of the penetration portion and inserted into the inlet hole of the protrusion formed on the cleansing barrel.

At this time, the outer circumferential surface of the mounting portion and the inner circumferential surface of the inlet hole are preferably formed with a plurality of mounting portion coupling protrusions and inlet hole coupling protrusions, which are arranged in a helical shape, respectively.

The through-hole has a press-in step for press-fitting the cleansing bar binding ring into a portion of the through-hole facing the contact part, and a stopping protrusion for exerting an elastic force on the edge of the cleansing bar binding ring corresponding to the press- And the engaging jaw are engaged with each other.

In addition, the purging cylinder may have a pressing protrusion formed along the periphery of the protrusion, and an orifice groove may be formed on one surface of the purging cylinder binding ring facing the pressing protrusion, so that when the purging cylinder is fastened to the purging cylinder port unit, It is preferable that the pressing projection presses the sealing member.

In addition, the exhaust valve port unit may include a communication portion passing through the hood and the nose mask and formed with a communication hole communicating with the exhaust valve cover and having an exhaust valve therein, and a communication portion formed on one side of the communication portion, And an engaging step for engaging with a hook formed on an outer circumferential surface of the communicating portion is formed on an inner circumferential surface of the outer circumferential surface of the nose mask, And an exhaust valve engaging ring formed with an exhaust valve.

In addition, the webbing may be provided at a lower portion of the back of the hood to closely contact the back of the hood of the wearer with a locker provided at both ends thereof, a connection cord extending toward the cleansing container mouth unit, And a control strap extending toward the connection pipe unit of the purifier and having both ends thereof fixed to the locker through a connection ring formed in the purifier bar coupling ring.

At this time, the locker has a connecting piece, one end of which is connected to the connecting ring so as to be able to rotate in one direction, and the other end of which is provided with a spike, and the other end of the connecting piece is fixed to the connecting piece The other end of the adjusting strap is wound on the other side of the connecting piece as the connecting piece is rotated by the tension of the adjusting strap generated by pulling the adjusting strap, And a fixing means for fixing one side of the grip ring to the connecting piece so as to be able to rotate in a single direction.

In addition, the fixing means includes a slanting jaw on both sides of one side of the connecting piece on one side of the gripping ring, and a straight tang which is perpendicular to the slanting jaw. The fixing jaw passes through the slanting jaw, It is preferable that one side of the grip ring inserted between the straight jaws is engaged with the inclined jaw and the straight jaw so as to be constrained to one side of the connecting piece.

In addition, the hood has a fixing part for fixing the webbing on its back surface so that the webbing does not flow down. The fixing part includes a wing folded on the outer surface of the hood, And a core tape secured to the vanes at both ends thereof and having a gap through which the webbing passes between both ends, and a core tape passing through the upper portion of the fixing band and sealed along the vane.

Preferably, the face lens further comprises a folding means for providing a portion where folding is possible.

At this time, it is preferable that the folding means weaken the rigidity of a part of the face lens in a linear form so that the face lens can be folded.

Preferably, the folding means includes a folding line, and the folding line is formed to be thinner than other portions of the face lens, so that the folding line has flexibility.
For example, when the folding line is formed straight from the top toward the bottom center, the face lens may be formed with a straight groove formed by the folding line at the center.
The face lens is characterized in that the folding line is folded about the center as the straight line is formed at the center.
The hood may further include a fixing part for providing a loop-shaped hole in which the adjusting strap of the webbing is inserted in a penetrating state to prevent the adjusting strap from flowing down.
The webbing is pulled by the pulling of the adjusting straps as both ends of the adjusting straps are connected to the connecting strap through the locker.
The present invention further needs to include an engaging member detachably coupling the exhaust valve cover to the exhaust valve engaging ring.
The engaging member may include, for example, a locking step protruding from an inner circumferential surface of the exhaust valve cover; And an engagement step formed on an outer circumferential surface of the exhaust valve engagement ring to engage with the engagement step.
And the engaging step is characterized in that the engaging step is engaged with the exhaust valve engaging ring in a detachable manner as the end of the engaging step is formed into a semicircular cross section.
It is preferable that the webbing is formed of a band-shaped elastic band in which the adjustment straps have elasticity.
The webbing may further include a hook formed at an end portion of the adjusting strap to receive a finger.
The hook can be composed of, for example, an elastic rubber ring fixed to an end of the adjusting strap and having elasticity.

According to the hood type respirator according to the present invention, since the plurality of purifying cylinder connector units and the exhaust valve heat sealing unit provided on the front face of the hood have separate structures, the volume of the gas mask can be minimized, The size of the packaging box for packing the gas mask can be reduced by minimizing the volume of the gas mask, thereby reducing the cost of the packaging.

Further, since the folding line is formed on the face lens, when the wearer wears the hood, the face lens is bent in accordance with the bending of the wearer's face, so that the wearer's eye and the face lens are close to each other.

In addition, when the wearer wears the hood, the back of the hood is brought into close contact with the back of the wearer by pulling the adjustment strap of the webbing, so that even when the wearer wears the gas mask and takes a violent action, Thereby improving the activity of the wearer.
In particular, since the folding line is formed in a straight line at the center of the face lens, the face lens can be folded around the folding line at the center, so that the folding line can be bent in accordance with the bending of the wearer's face.
In addition, since the fixing portion is provided on the hood so that the adjustment strap of the webbing is inserted into the through-hole, the adjustment strap can be prevented from flowing down from the hood.
Also, as both ends of the adjustable strap are connected to the connecting strap through the locker, the connecting strap can be pulled by pulling the adjusting strap.
Further, the exhaust valve cover is separated from the exhaust valve engagement ring by the engaging member, which is composed of the engagement step and the engagement step, and which detachably couples the exhaust valve cover to the exhaust valve engagement ring. Particularly, So that the exhaust valve cover can be easily disassembled and can be easily cleaned after disassembly.
In addition, since the webbing is made of an elastic band, elasticity is ensured by the elastic band. In addition, since the hook is formed at the end of the adjustment strap, the adjustment strap can be easily pulled by inserting the fingers. Further, When the rubber ring is constituted, an elastic force can be secured to the hook.

1 is a sectional view showing a hood type conventional respirator.
2 is a plan view showing a hood type respirator according to the present invention.
3 is a side view of a hood type respirator according to the present invention.
Fig. 4 is an exploded view showing the coupling relationship of the hood type respirator according to the present invention.
5 is an exploded perspective view of a hood type respirator according to the present invention.
6 is a plan sectional view of a hood type respirator according to the present invention.
7 is an enlarged view showing part A of Fig.
8 is an enlarged view showing part B of Fig.
9 is a perspective view showing a locker of a hood type gasket according to the present invention.
10 is a side view showing the operating state of the locker in the hood type respirator according to the present invention.
11 is a perspective view showing a fixing part of a hood type respirator according to the present invention.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings and the inventor may properly define the concept of the term to describe its invention in the best possible way And should be construed in accordance with the principles and meanings and concepts consistent with the technical idea of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a plan view showing a hood type respirator according to the present invention, FIG. 3 is a side view showing a hood type respirator according to the present invention, and FIG. 4 is an exploded view showing a coupling relationship of a hood type respirator according to the present invention.

A hood 100 having a face lens 110 on the front face, a hood 100 having a folding line 112 formed on the hood 100, An exhaust valve cover 400 provided on the front face of the hood 100 corresponding to the wearer's mouth and an exhaust valve cover 400 secured to the exhaust valve cover 400 from the inside of the nose mask 200. [ The exhaust valve cover 400 and the exhaust valve cover 400 are disposed on both sides of the hood 100 on the front side of the hood 100 with respect to the exhaust valve cover 400, A purifying tank coupling unit 510 and a purifying tank coupling unit 510 which are coupled to the purifying column 500 inside the nose mask 200. The webbing 100 is in contact with the head of the wearer, (600).

The hood 100 is formed in the form of a bag having a lower shielding film 107 so that the wearer's head can be shielded and hermetically sealed. The hood 100 is made of aluminum, (For example, aramid, aluminum-coated flame retardant fabric, etc.) which shields firearms.

The shielding film 107 formed inside the hood 100 is made of a flexible material having elasticity such as rubber so that the wearer can wear the hood 100 through the opening formed in the shielding film 107 After the hood 100 is worn, the blocking film 107 comes into intimate contact with the neck of the wearer and the inside and the outside of the hood 100 are isolated.

In addition, the front face of the hood 100 is formed with a face lens 110 so that the wearer can look forward. The face lens 110 is folded along with the hood 100 when the hood 100 is folded and carried and carried so that a part of the face lens 110 is folded to reduce the total volume of the respiration face. Folding means are provided to provide this possible area.

At this time, the folding means weakens the rigidity of a part of the face lens 110 to a line shape, thereby enabling the face lens 110 to be folded. The folding means includes a folding line 112.

The folding line 112 is formed such that the folding line 112 is formed to have a thickness smaller than that of the other portions of the face lens 110 by pressing or the like so that the folding line 112 has flexibility (bending or bending property).

The folding line 112 formed on the face lens 110 may be formed to extend in the vertical direction at a portion corresponding to the center of the face lens 110 as shown in FIG. 2 or 3, And a shape extending toward the center at the upper and lower centers of the upper and lower ends.
That is, the face lens 110 may be formed in the longitudinal direction as shown by the broken line in FIG. 2, or alternatively may be formed in the lateral direction.

In addition, the folding line 112 formed on the face lens 110 may be formed on one or both of the outer surface or the inner surface (the surface corresponding to the inner side of the hood) of the face lens 110 have.

When the folding line 112 is formed on the face lens 110 as described above, the face lens 110 can be folded together when the hood is folded, thereby minimizing the volume of the respiratory face, thereby reducing the storage space, 100) is worn by the wearer, the face lens 110 is bent in accordance with the bending of the wearer's face, so that the wearer's eyes and the face lens 110 are close to each other, thereby ensuring the visibility as much.
Particularly, when the folding line 112 is formed straight in the center as shown by the broken line in FIG. 2, the face lens 110 is folded by the folding line 112 in the longitudinal direction Is formed at the center, so that it is hung around the center. Accordingly, the face lens 110 is bent in conformity with the face bending of the wearer.

A hood side cleansing hood through hole 105 and a hood side exhaust valve through hole 103 are formed below the face lens 110 formed on the front face of the hood 100. The hood side cleansing hood hole 105 and the hood side exhaust valve hole 103 are provided with a purifier 500 and an exhaust valve cover 400 .

At this time, the hood side exhaust valve through-hole 103 is formed in the front lower portion of the hood 100 to correspond to the mouth of the wearer, and the hood side purifier through-hole 105 Is formed.

The nose mask 200 separates the wearer's nose and mouth from the inside of the hood 100 so that breathing can be smoothly performed. The nose mask 200 is made of a heat-dissipating rubber that is flexible so as to be in close contact with the face bending of the wearer.

The nose mask 200 includes a hood side exhaust valve through hole 103 formed in the hood 100 and a mask side exhaust valve through hole 203 having the same axis as the hood side cleansing hood through hole 105, A through-hole 205 is formed on the inner surface of the hood 100.

An exhaust valve cover 400 and an exhaust valve port unit 410 are provided in the hood side exhaust valve through hole 103 formed in the hood 100 and a purifier and a purifier pipe connecting unit 510) are installed. This will be described with reference to Figs. 4 to 6. Fig.

FIG. 4 is an exploded view showing a coupling relationship between the hood type gasket according to the present invention, FIG. 5 is an exploded perspective view of the hood type gasket according to the present invention, and FIG. 6 is a horizontal sectional view of the hood type gasket according to the present invention.

The exhaust valve cover 400 is positioned so as to have the same axis as the hood side exhaust valve through hole 103 formed on the front face of the hood 100 corresponding to the mouth of the wearer, And the exhaust valve coupling unit 410 is composed of a communication portion 431, a shoulder portion 432, and an exhaust valve coupling ring 440. The exhaust valve coupling unit 410 is provided with an exhaust valve coupling unit 410,

A plurality of vent ports 402 are formed on the surface of the exhaust valve cover 400 so that air exhausted through the exhaust valve 420 is exhausted to the outside through the vent port 402. The exhaust valve cover 400 has a structure in which the engagement step 404 is formed on the inner circumferential surface of the exhaust valve cover 400 and is engaged with the engagement step 445 formed on the outer peripheral surface of the exhaust valve engagement ring 440. When the exhaust valve cover 400 and the exhaust valve engagement ring 440 are coupled by the engagement step 404 and the engagement step 445, the exhaust valve cover 400 can be easily disassembled, There is an advantage.
The engagement step 404 and the engagement step 445 described above are engagement members detachably coupling the exhaust valve cover 400 to the exhaust valve engagement ring 440. Such an engaging member is configured such that the exhaust valve cover 400 is connected to the exhaust valve engaging ring 440 (see FIG. 8) as the end of the protruding engaging step 404, which engages the engaging step 445, As shown in Fig.

An exhaust valve engaging ring 440 is provided between the exhaust valve cover 400 and the hood 100 when the exhaust valve cover 400 is positioned on the front surface of the hood 100. The exhaust valve engaging ring 440 is disposed between the exhaust valve cover 400 and the hood 100, Is bound by a nose mask 200 and a communication portion 431 passing through the hood 100.

That is, the communication unit 431 has a shape of a tube so as to penetrate the hood 100 and the nose mask 200, and a communication hole 431a communicating with the exhaust valve cover 400 is formed therein, An exhaust valve 420 is provided. At this time, the exhaust valve 420 is supported by the communication portion 431, and the nash of the wearer is in the form of an elastic thin film in which the exhaust valve 420 opens according to the breath.

8, a shoulder portion 432 having a larger diameter than the communication portion 431 and closely contacting the inner surface of the nose mask 200 is formed at one side of the communication portion 431, and the communication portion 431 The communication portion 431 passes through the mask side exhaust valve through hole 203 and the hood side exhaust valve through hole 103 from the inside of the nose mask 200. [ A hook 431b formed on the outer circumferential surface of the communication portion 431 protruding forward of the hood 100 is engaged with the engagement end portion 442 formed on the exhaust valve engagement ring 440. [

The engagement step 445 formed on the outer circumferential surface of the exhaust valve engagement ring 440 is engaged with the engagement step 404 formed on the inner circumferential surface of the exhaust valve cover 400. At this time, the engaging step 404 formed on the inner circumferential surface of the exhaust valve cover 400 can be smoothly attached to and detached from the engaging step 445 of the exhaust valve engaging ring 440 by making the cross section thereof semicircular.

The purifier 500 is installed on both sides of an exhaust valve cover 400 installed on the front of the hood 100. The purifier 500 includes a purifier body 500a and a purifier cover 500b, A filter such as a perforated plate, a filter paper, activated carbon, etc. is provided inside the purifier body 500a so as to purify the contaminated external air and supply it to the inside of the nose mask 200.

The purge tank 500 is provided with a protrusion 501 on the other side of the purifier body 500a and formed with an inlet hole 502 communicating with the mask side purge tank through hole 305, And is fastened to the connector unit 510. 7, a description will be given of a refill pipe connection unit 510 which is fastened to the refill pipe main body 500a.

7 is an enlarged view showing part A of Fig. Referring to FIG. 1, a clarifying-tube connector unit 510 includes a through-hole 512 passing through a hood and nose mask 200 and having a communication hole 511 connected to the purifier 500, A tight contact portion 513 formed on one side of the penetration portion 512 and having a larger diameter than the penetration portion 512 and closely contacting the inner surface of the nose mask 200; A mounting portion 514 inserted into the inlet hole 502 of the protrusion 501 and a cleansing bar binding ring 530 connected to the webbing 600 and coupled to the penetrating portion 512 penetrating the hood 100.

The penetrating part 512 has a cylindrical shape and a communication hole 511 is formed in the inside of the penetrating part 512 to communicate with the purifying column 500. The through holes 512 penetrate the hood 100 and the nose mask 200 through the hood side cleansing hood hole 105 and the mask side cleansing hood hole 205, respectively. The contact portion 513 is formed on one side of the penetration portion 512 so that the contact portion 513 has a larger diameter than the penetration portion 512 and is closely attached to the inner surface of the nose mask 200.

The mounting portion 514 is formed on the other side of the penetrating portion 512 and is inserted into the inlet hole 502 of the protrusion 501 formed in the purifier 500. The mounting portion 514 and the inlet hole 502, A plurality of mounting portion coupling protrusions 514a and a plurality of insertion hole coupling protrusions 502a are formed so as to be helically arranged as shown in the original drawing of Figure 5 and the mounting portion coupling protrusions 514a and the inlet hole coupling protrusions 502a And the cleansing barrel 500 and the cleansing barrel connecting unit 510 are engaged with each other.

The mounting portion coupling projections 514a are formed in a spiral shape along the clockwise direction at regular intervals on the outer peripheral surface of the mounting portion 514 and the inlet hole coupling protrusions 502a are spaced apart from each other by a predetermined distance on the inner peripheral surface of the inlet hole 502 And is formed spirally along the clockwise direction.

Therefore, in order to assemble the cleansing port connector unit 510 into the cleansing vessel 500, the mounting portion 514 of the cleansing receptacle connector unit 510 is inserted into the cleansing vessel 500 And then rotated in the clockwise direction, the mounting portion coupling protrusions 514a are guided by the inlet hole coupling protrusions 502a and screwed together.

The mounting portion coupling projections 514a and the inlet hole coupling projections 502a are equally spaced from the outer circumferential surface of the mounting portion 514 and the inner circumferential surface of the inlet hole 502 to connect the mounting portion 514 of the purification tank connector unit 510 It is possible to rapidly fasten or separate the cleansing tub 500 and the cleansing tube connector unit 510 by rotating the tub 500 to a predetermined angle after being inserted into the inlet hole 502 of the cleansing vessel 500.

The penetrating portion 512 is formed with a press-in step 512a for press-fitting the cleansing bar binding ring 530 at a portion opposed to the contact portion 513. The press-in step 512a is opposed to the contact portion 513 That is, a shape protruding outward from the boundary between the penetrating portion 512 and the mounting portion 514. [

The engaging step 531 corresponding to the press-in step 512a is formed in the edge of the purifying bar binding ring 530 so that the penetrating part 512 and the purifying bar binding ring 530 are bound together, The nose mask 200 and the hood 100 are interposed between the jaws 512a.

When the press-in step 512a and the engagement step 531 are formed in the through-hole 512 and the cleansing bar binding ring 530, the through-hole 512 and the cleansing bar binding ring 530 are fastened to each other by one- It is possible to quickly assemble the penetrating portion 512 and the cleansing bar binding ring 530.

At this time, concave and convex portions 533 are formed on the surface facing the tight fitting portion 513 so as to firmly support the hood 100 to the cleansing bar binding ring 530 so that the tightening portion 533 between the tight fitting portion binding ring 530 The concave and convex portions 533 press the hood toward the hood 513 to firmly support the hood 100. [

When the purifying column 500 is fastened to the purifying column connecting port unit 510 and then separated as required and the purifying column 500 is connected to the purifying column 500 when the purifying column 500 and the purifying column connecting unit 510 are fastened, The sealing member 520 and the pressing protrusion 504 are provided on the cleansing barrel 500 and the cleansing bar binding ring 530, respectively, so as to ensure the airtightness between the sealing rings 520 and 520.

7, in the sealing member 520 and the pressing protrusion 504 provided in the cleansing box 500 and the cleansing bar binding ring 530, And the clearance groove 532 in which the sealing member 520 is placed is formed at a portion facing the pressing protrusion 504 in the cleansing bar binding ring 530

At this time, the sealing member 520 may have an elastic restoring force and may be an O-ring for preventing fluid from flowing out.

When the sealing member 520 is provided in the catch groove 503 of the cleansing bar binding ring 530 and the pressing protrusion 504 is formed around the protrusion 501 of the cleansing barrel 500, The sealing protrusion 504 presses the sealing member 520 when tightened with the binding ring 530 to improve airtightness between the cleansing barrel 500 and the cleansing bar binding ring 530.

The connection ring 534 connected to the webbing 600 is formed on the purifier bar binding ring 530 and the webbing 600 is pulled by the wearer so that the nose mask 200 is brought into close contact with the wearer's nose and mouth, Thereby improving the activity of the user. Such webbing will be described with reference to Figs. 9 and 10. Fig.

FIG. 9 is a perspective view showing a locker in a hood type of a hood type of the present invention, and FIG. 10 is a side view showing an operation state of a hood type of a hood type lock face in accordance with the present invention.

The webbing 600 is composed of a connecting strap 610 and an adjusting strap 620. The connecting strap 610 connects the back of the hood 100 to the hood 100 And is provided with lockers 630 at both ends thereof, and extends toward the purifier port connector unit 510.

The adjustable strap 620 extends from the upper portion of the rear surface of the hood 100 toward the purifier port coupling unit 510 and is inserted into the locker 630 through both ends of the connection ring 534 formed in the purifier bar binding ring 530, So that the adjusting strap 620 is brought into close contact with the back of the wearer's back of the hood 100. The adjusting strap 620 may be formed of, for example, a band- Lt; / RTI >
The adjustable strap 620 is connected to the connecting strap 610 by the locker 630 as described below. Accordingly, the webbing 600 is pulled also by the pulling of the adjusting strap 620 as the connecting strap 610 is connected to the adjusting strap 620.

In this way, the locker 630 connecting the connecting strap 610 and the adjusting strap 620 is for locking or unlocking both ends of the adjusting strap 620, and various shapes and structures can be implemented. For example, And may be composed of a connecting piece 631, a grip ring 632, and a fixing means 633 as shown in FIG.

The connection piece 631 is connected to the connection ring 534 formed in the cleansing bar binding ring 530 so as to be able to rotate in one direction and provided with a spike 631a at the other end.

That is, one end of the connecting piece 631 is connected to the connecting ring 534 formed on the cleansing bar binding ring 530 in a state in which it can rotate in one direction, and a spike 631a is provided at the other end. As shown in the figure, the connecting piece 631 is formed with a connecting portion 635 having a through hole formed therein so that the other end of the connecting strap 610 is inserted and fixed. At the free end opposite to the connecting portion 635, A tip 364 is formed to release the pressure of the adjustment strap 620 with a finger.

One end of the gripping ring 632 is fixed to the connecting piece 631 so as to be able to rotate in one direction while the gripping ring 632 is fitted to the connecting piece 631. The adjusting strap 620 is inserted inward and is wound in a bent state on the other side, The other end side of the connecting piece 631 is rotated by the tension of the adjusting strap 620 while the strap 5 is pulled and the other end of the adjusting strap 620 is rotated about the other side, So as to grip the adjusting strap 620 together with the connecting piece 631. [

9 and 10, a tubular sleeve 636 may be inserted into the grip ring 632 to facilitate movement of the adjustment strap 620 wound on the other side in a folded state. At the end of the adjusting strap 620, a wearer can easily find the adjusting strap by arranging a rubber ring 621 for pulling the adjusting strap by fingers.
Here, the above-mentioned rubber ring 621 is a hook for fitting a finger, and is made of elastic material rubber, so that it has elasticity.

On the other hand, the fixing means 633 fixes one side of the holding ring 632 to the connecting piece 631 so as to be able to rotate in a single direction. The fixing means 633 has a slanting step 633a and a straight step 633b perpendicular to the slanting step 633a on both sides of one side of the connecting piece 631 where one side of the holding ring 632 is located One side of the grip ring 632 inserted through the inclined protrusion 633a and inserted between the inclined protrusion 633a and the straight protrusion 633b is caught by the inclined protrusion 633a and the straight protrusion 633b, 631, respectively.

The locker 630 described above pulls the adjusting strap 620 in a state where the gripping ring 632 inserted with the adjusting strap 620 is inserted into the connecting piece 631 as shown in FIG. The spike 631a of the connecting piece 631 presses the adjusting strap 620 against the grip ring 632 as the connecting piece 631 is rotated by the tension of the adjusting strap 620 generated while the adjusting strap 620 is rotated, The adjusting strap 620 can be pressed and fixed only by a tensile force.

10 (b), when the tip 364 is pushed outward with the fingers, the spike 631a is spaced apart from the grip ring 632 as the connecting piece 631 rotates So that the adjusting strap 620 can be released.

The hood 100 is provided with a fixing portion 120 to prevent the adjusting strap 620 from flowing down from the hood 100. This will be described with reference to FIG.

11 is a perspective view showing a fixing part of a hood type respirator according to the present invention. The fixing part 120 is composed of a wing 101, a fixing band 121 and a core tape 122. The wing 101 is formed by a cutout 101a formed on the back surface of the hood 100, Are faced to each other and are thermally fused and folded to the outer surface of the hood 100.

At this time, the fixing band 121 is fixed at both ends by sewing so that the webbing (adjusting strap) 600 is inserted between both ends of the fixing band 121 A gap is formed.

The shim tape 122 is formed along the wing 101 formed on the back surface of the hood 100 while passing over the upper portion of the fixing band 121 so that outside air of the hood 100 is not introduced through the wing 101 And the webbing 600 can be stably fixed.
As a result, the fixing portion 120 provides an annular hole through which the webbing 600 is inserted into the hood 100 as shown in Fig. 11, so that the webbing 600 is in contact with the hood 100 ).

According to the hood type respirator according to the present invention, the folding line 112 is formed on the face lens 110 and the purifier 500 is independently provided on both sides of the exhaust valve cover 400 The folding line 112 can be folded around the folding line 112 as well as the plurality of the purifying tank connector unit 510 and the exhaust valve connector unit 410 are separately divided so that the hood 100 can be easily It can be stored in a drawer (it is conventionally stored in a cabinet) and it is easy to carry.

By minimizing the volume of the gas mask, it is possible to reduce the size of the packaging box for packaging the gas mask, thereby reducing the cost of the gas mask.

The connecting cord 610 of the webbing 600 and the adjusting strap 620 are connected by the locker 630 so that the hood 100 can be easily attached and detached only by the operation of the locker 630, Even if the back of the hood 100 is brought into close contact with the back of the wearer and the wearer wears the respiratory mask and takes a violent action by pulling the adjusting strap 620 of the webbing 600 when the wearer 100 is worn, And can be stably positioned on the wearer's head, thereby improving the wearer's activity.

Further, since the folding line 112 is formed on the face lens 110, when the wearer wears the hood 100, the face lens 110 is bent in accordance with the bending of the wearer's face, So that the viewfinder can be easily secured.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. .

100: Hood 101: Wing
103: Hood side exhaust valve through hole
105: Hood side cleanser through hole 110: Facial lens
112: folding line 120:
121: fixing band 122: core tape
200: nose mask 203: mask side exhaust valve through hole
205: Through-hole in the mask side cleanser
400: exhaust valve cover 402: vent port
404: stop step 431:
431a: communication hole 431b: hook
432: Shoulder portion 410: Exhaust valve connector unit
420: exhaust valve 440: exhaust valve coupling ring
442: Engagement end 445: Engagement step
500: purifying cylinder 504: pressure projection
530: cleansing bar binding ring 531:
532: anchor groove 533: concave and convex
534: connecting collar 500a: purifying cylinder body
500b: canister cover 501: protrusion
502: inlet hole 502a: inlet hole coupling protrusion
503: Anchoring groove 510:
512: penetrating part 513:
514: mounting portion 514a: mounting portion binding protrusion
520: sealing member 600: webbing
610: connecting string 620: adjusting strap
621: Rubber ring 630: Rocker
631: connection 631a: spike
632: grip ring 366: fastening means
633a: inclined jaw 633b: straight jaw

Claims (9)

A hood (100) having a face lens (110) on the front face;
A blocking film 107 formed at an inner lower end of the hood 100 to isolate the entire head from the outside;
A nose mask 200 provided on the inner surface of the hood 100 for isolating the wearer's nose and mouth from the inside of the hood;
An exhaust valve cover (400) provided on the front surface of the hood in response to a wearer's mouth;
An exhaust valve connector unit 410 penetrating the nose mask 200 and engaged with the exhaust valve cover 400;
An exhaust valve 420 installed between the exhaust valve connector unit 410 and the exhaust valve cover 400;
A purifier 500 provided on both sides of the front of the hood 100 with respect to the exhaust valve cover 400;
A clarifying tube connector unit 510 penetrating through the nose mask 200 and coupled with the purifier body 500; And
And a webbing 600 connected to the purifier port unit 510 to tightly press the hood 100 to tightly contact the nose mask 200 with the wearer's mouth and nose,
The exhaust valve port unit 410 and the purifier port unit 510 are separated from each other,
The sanitary-pipe connector unit (510)
A penetration part 512 having a communication hole 511 passing through the hood 100 and the nose mask 200 and communicating with the purifier 500;
A tight fitting portion 513 formed on one side of the penetrating portion 512 and having a larger diameter than the penetrating portion 512 and closely contacting the inner surface of the nose mask 200;
A mounting portion 514 formed on the other side of the penetrating portion 512 and inserted into the inlet hole 502 of the protrusion 501 formed in the purifier 500; And
And a purifier bar binding ring (530) coupled to the penetration part (512) penetrating the hood (100) and connected to the webbing (600)
The outer circumferential surface of the mounting portion 514 and the inner circumferential surface of the inlet hole 502 are formed with a plurality of mounting portion coupling protrusions 514a and a plurality of inlet hole coupling protrusions 502a,
The through-hole 512 is formed,
A press-fitting step 512a for press-fitting the cleansing bar binding ring 530 is formed at a portion opposed to the tight fitting portion 513 and an elastic force is applied to the edge of the cleansing bar binding ring 530 in correspondence with the press- The engaging jaw 531 is formed so that the press-in jaw 512a is engaged with the engaging jaw 531,
The purifier (500)
A pressing protrusion 504 is formed along the circumference of the protrusion 501 and an orifice groove 532 in which the sealing member 520 is placed on one surface of the cleansing bar binding ring 530 facing the pressing protrusion 504 And the pressing projection 504 presses the sealing member 520 when the cleaning cylinder 500 is fastened to the cleaning cylinder connector unit 510,
The exhaust valve connector unit 410 includes:
A communication part 431 formed with a communication hole 431a communicating with the exhaust valve cover 400 through the hood 100 and the nose mask 200 and having an exhaust valve 420 installed therein;
A shoulder portion 432 formed on one side of the communication portion 431 and having a larger diameter than the communication portion 431 and closely contacting the inner surface of the nose mask 200; And
The engaging end 442 coupled to the hook 431b formed on the outer circumferential surface of the communication portion 431 is formed on the inner circumferential surface and is engaged with the engaging step 404 formed on the inner circumferential surface of the exhaust valve cover 400, And an exhaust valve engaging ring 440 having a stepped portion 445 formed therein,
The webbing (600)
A locker 630 is provided at both ends of the rear of the hood 100 to closely contact the back of the hood 100 to the back of the wearer and has a connecting strap 610); And
The hood 100 is extended from the upper portion of the hood 100 toward the purifier port coupling unit 510 so that both ends thereof pass through a connection ring 534 formed in the purifier bar binding ring 530 and are restrained by the locker 630 A string 620,
The facial lens 110 further includes a folding means for providing a portion of the foldable portion,
The folding means weakens the stiffness of a part of the face lens 110 in a linear form so that the face lens 110 can be folded.
Wherein the folding means includes a folding line (112), wherein the folding line (112) is thinner than the other portions of the face lens (110) and is flexible,
The face lens 110 may be,
The folding line 112 is formed in a straight line from the upper end toward the lower end center, and a straight groove formed by the folding line 112 is formed at the center.
The face lens 110 may be,
The folding line 112 is formed in a straight line at the center and is folded about the center,
The hood (100)
And a fixing part (120) for providing a loop-shaped hole in which the adjusting strap (620) of the webbing (600) is inserted in a penetrating state to prevent the adjusting strap (620) from flowing down,
The webbing (600)
The connecting strap 610 is pulled by pulling the adjusting strap 620 as both ends of the adjusting strap 620 are connected to the connecting strap 610 through the locker 630 ,
And an engaging member detachably coupling the exhaust valve cover 400 to the exhaust valve engaging ring 440,
The coupling member
A locking step 404 protruding from the inner circumferential surface of the exhaust valve cover 400; And
And an engagement step (445) formed on an outer circumferential surface of the exhaust valve engagement ring (440) and engaged with the engagement step (404)
The engaging step 404,
And an end portion of the stopper 445 is engaged with the exhaust valve engaging ring 440 in a detachable manner as the end portion is formed in a semicircular cross section. The webbing (600) according to claim 1, wherein the webbing (600)
The adjusting strap 620 is composed of a band-shaped elastic band having elasticity,
The webbing (600)
And a hook formed at an end of the adjustable strap (620) and fitted with a finger. [3] The apparatus according to claim 2,
And an elastic rubber ring (621) fixed to an end of the adjusting strap (620) and having elasticity. delete delete delete delete delete delete

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