Isolation type respiratory protection device

Abstract

The utility model discloses an isolation type respiratory protection device which comprises an inner-layer cover and an outer-layer cover arranged outside the inner-layer cover in a sealing and covering mode, an interlayer between the inner-layer cover and the outer-layer cover forms an air storage cavity, and a carbon dioxide absorbent box is arranged on the inner-layer cover. The carbon dioxide absorbent box is communicated with the inner cavity of the inner-layer cover and the gas storage cavity, the inner-layer cover and the outer-layer cover are provided with openings through which part or all of the body can enter the inner-layer cover, and the openings are provided with sealing devices capable of sealing the openings. A user builds isolated breathing circulation through logic circulation of a gas circuit between the inner-layer cover and the gas storage cavity, it can be guaranteed that the user does not breathe outside gas any more within a certain time, and breathing protection guarantee is provided for escape of the user.

Description

Technical Field

[0001] The utility model relates to the field of fire protection, and more specifically, to an isolated breathing protection device. Background Art

[0002] As a fire-fighting equipment, respiratory protection devices are used by firefighters or emergency rescue personnel to safely and effectively carry out fire extinguishing, emergency rescue and other rescue work in various environments such as thick smoke, toxic gas, steam or lack of oxygen. They provide respiratory protection for people trapped in the above scenes to avoid being harmed, so that they can safely escape from the trapped environment.

[0003] Most of the existing respiratory protection devices are in the form of fire-fighting respiratory protection masks, and most of the fire-fighting respiratory protection masks are of filtering type. When a user wears a filtering mask, the outside air is first sucked into the filtering device for filtration when inhaling, and then enters the mask for the user to inhale, and the exhaled gas is directly discharged outside the mask when exhaling. Although this open respiratory protection mask can filter the outside air to a certain extent, when the external environment is more complicated, it is difficult for the filtering device to completely filter the harmful gases in the outside world, and it is difficult to avoid the harmful gases in the external environment from causing harm to the trapped persons, which is not convenient for safe escape from the trapped environment. Utility Model Content

[0004] The utility model aims at the above-mentioned defects of the prior art and provides an isolated breathing protection device.

[0005] The technical solution adopted by the utility model to solve the technical problem is: construct an isolation type respiratory protection device, the protection device comprises an inner cover, an outer cover with a sealing cover arranged outside the inner cover, the interlayer between the inner cover and the outer cover forms an air storage cavity, the inner cover is provided with a carbon dioxide absorbent box, the carbon dioxide absorbent box communicates with the inner cavity of the inner cover and the air storage cavity, the inner cover and the outer cover are provided with openings for part or all of the body to enter the inner cover, and the opening is provided with a sealing device capable of sealing the opening.

[0006] In the isolation type respiratory protection device described in the utility model, the protection device also includes an oxygen supply device arranged in the inner cover or the outer cover or an oxygen supply device arranged outside the outer cover, and the air supply nozzle of the oxygen supply device extends into the air storage cavity.

[0007] In the isolation type respiratory protection device described in the utility model, the inner cover is an inner head cover for accommodating the head, the outer cover is an outer head cover with a sealing cover arranged outside the inner head cover, the sealing device is a neck sealing sleeve with a sealing cover arranged at the bottom of the inner head cover, and the opening is a neck hole arranged in the middle of the neck sealing sleeve for the neck seal to pass through and extend into.

[0008] In the isolated respiratory protection device described in the utility model, the oxygen supply equipment is an annular high-pressure oxygen storage bottle arranged in the outer head cover or the inner head cover, the first end of the annular high-pressure oxygen storage bottle is sealed, and the second end of the annular high-pressure oxygen storage bottle is provided with a control switch and the air supply nozzle.

[0009] In the isolation type respiratory protection device described in the utility model, the protection device also includes an annular sheath mounted on the outside of the annular high-pressure oxygen storage bottle, the bottom end of the inner head cover is turned outward from the inner side of the annular sheath around the bottom of the annular sheath and fixedly connected to the outer side of the arc-shaped sheath, and the bottom end of the outer head cover is turned inward from the outer side of the annular sheath around the bottom of the annular sheath and fixedly connected to the bottom or inner side of the annular sheath.

[0010] In the isolation type respiratory protection device described in the utility model, the air supply nozzle is provided with an air supply hose connected to and communicated with the air supply nozzle, the air supply hose is located in the air storage cavity, and the outer head cover is provided with an oxygen inhalation hole for the air supply hose to extend out at a position corresponding to the air supply hose, and the outer head cover is also provided with an easy-tear cover bonded to the outer head cover and used to seal and cover the oxygen inhalation hole.

[0011] In the isolated breathing protection device described in the utility model, the inner head cover is made of elastic non-air-permeable flame-retardant material, and the outer head cover is made of heat-insulating flame-retardant material. Anti-fog lenses are provided at the eye positions on the outer head cover and the inner head cover.

[0012] In the isolation type respiratory protection device described in the utility model, the neck sealing sheath is a disc-shaped neck sealing sheath made of flame-retardant elastic material.

[0013] In the isolated breathing protection device described in the utility model, a first elastic shock absorbing module is fixedly provided on the top outer side surface of the inner head cover;

[0014] And / or, a second elastic shock absorbing module is fixedly provided on the inner side surface of the top of the outer head cover;

[0015] And / or, a third elastic shock absorbing module is fixedly provided on the top outer side surface of the outer head cover.

[0016] In the isolated breathing protection device described in the utility model, an overpressure exhaust valve is provided at the mouth of the outer hood, and the overpressure exhaust valve is communicated with the air storage chamber;

[0017] A loudspeaker is also provided at the mouth position of the inner head cover and the outer head cover. The loudspeaker is sealed and penetrates from the outer side of the outer head cover to the inner side of the inner head cover. A horn-shaped sound receiving cover is provided on the inner side of the loudspeaker.

[0018] The implementation of the isolation type respiratory protective device of the utility model has the following beneficial effects: when using the isolation type respiratory protective device of the utility model, the user can extend part or all of the body including the head into the inner layer mask from the opening, wear the protective device on the body, cover part or all of the body including the head, and then seal the opening through the sealing device to prevent harmful gases from entering the protective device from the opening. When the user exhales, the exhaled gas must pass through the carbon dioxide absorbent box before entering the gas storage cavity of the inner and outer layer mask sandwich, and this process can absorb and remove the carbon dioxide exhaled by the human body. When the user inhales, the gas temporarily stored in the gas storage cavity of the inner and outer layer mask sandwich is inhaled. The gas inhaled by the user must also pass through the carbon dioxide absorbent box before entering the inner layer mask for the user to inhale. This setting further controls the proportion of carbon dioxide in the gas inhaled by the user. The user establishes an isolation type breathing cycle by repeating the above-mentioned gas path logic, which can ensure that the user no longer breathes the outside gas within a certain period of time, avoid the harmful gas in the outside environment from causing harm to the user, and provide respiratory protection for the user's escape. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0020] Figure 1 It is a first exploded structural schematic diagram of the isolation type respiratory protection device of the present invention;

[0021] Figure 2 is a second exploded structural schematic diagram of the isolation type respiratory protection device of the present invention;

[0022] Figure 3 It is a schematic structural diagram of the isolation type respiratory protection device of the present invention. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0024] like Figure 1-3 As shown, in the first embodiment of the isolation type respiratory protective device of the utility model, the protective device 10 includes an inner cover 11, an outer cover 12 with a sealing cover arranged outside the inner cover 11, the interlayer between the inner cover 11 and the outer cover 12 forms an air storage cavity, the inner cover 11 is provided with a carbon dioxide absorbent box 15, the carbon dioxide absorbent box 15 connects the inner cavity of the inner cover 11 and the air storage cavity, the inner cover 11 and the outer cover 12 are provided with openings (not shown) for part or all of the body to enter the inner cover 11, and the opening is provided with a sealing device (not shown) that can seal the opening.

[0025] In one embodiment, the protective device 10 is in the shape of a fire suit that can be put on the body, and the gas storage chamber can store more gas, which can be used for isolation protection for a longer period of time. The opening is an opening for the protective device 10 to be worn on the user's body, and the sealing device can be a sealing zipper, sealing adhesive, or sealing magnetic strip, etc.

[0026] When using the isolation type respiratory protective device of the utility model, the user can extend part or all of the body including the head into the inner layer cover 11 from the opening, wear the protective device 10 on the body, cover part or all of the body including the head, and then seal the opening through the sealing device to prevent harmful gases from entering the protective device 10 from the opening. When the user exhales, the exhaled gas must pass through the carbon dioxide absorber box 15 before entering the gas storage cavity of the inner and outer layer cover sandwich. This process can absorb and remove the carbon dioxide exhaled by the human body. When the user inhales, the gas temporarily stored in the gas storage cavity of the inner and outer layer cover sandwich is inhaled. The gas inhaled by the user must also pass through the carbon dioxide absorber box 15 before entering the inner layer cover 11 for the user to inhale. This setting further controls the proportion of carbon dioxide in the gas inhaled by the user. The user establishes an isolation type breathing cycle by repeating the above-mentioned gas path logic, which can ensure that the user no longer breathes the outside gas within a certain period of time, avoid the harmful gas in the outside environment from causing harm to the user, and provide respiratory protection for the user's escape.

[0027] To facilitate the user to wear and use the protective device 10 for a longer period of time, the protective device 10 also includes an oxygen supply device arranged in the inner cover 11 or the outer cover 12 or an oxygen supply device arranged outside the outer cover 12, and the air supply nozzle 17 of the oxygen supply device extends into the air storage cavity.

[0028] In this embodiment, the protective device 10 is a protective device in the shape of a hood, the inner cover 11 is an inner head cover 11 for accommodating the head, the outer cover 12 is a sealing cover arranged on the outer head cover 12 outside the inner head cover 11, and the sealing device is a neck sealing sleeve 13 whose sealing cover is arranged on the bottom of the inner head cover 11. The interlayer between the inner head cover 11 and the outer head cover 12 forms an air storage chamber, and the opening is a neck hole 14 arranged in the middle of the neck sealing sleeve 13 for the neck seal to pass through and extend into.

[0029] The inner head cover 11 is provided with a carbon dioxide absorbent box 15 , and the carbon dioxide absorbent box 15 communicates with the inner cavity of the inner head cover 11 and the gas storage cavity.

[0030] Preferably, there are at least two carbon dioxide absorber boxes 15, which are fixed to the top outer side of the inner head cover 11. The inner and outer sides of the carbon dioxide absorber boxes 15 are provided with multiple air inlet holes, the air inlet holes on the inner side are located in the inner cavity of the inner head cover 11, and the air inlet holes on the outer side are located in the air storage cavity.

[0031] It is understandable that the outer head cover 12 is made of fire-retardant material, and the inner head cover 11 is made of elastic material and non-air-permeable material. The inner head cover 11 is made of elastic material to better fit the head shape of different users, to ensure that there is no dead space in the inner head cover 11, so as to avoid the accumulation of exhaled gas in the inner head cover 11, thereby preventing the carbon dioxide from being neutralized and absorbed.

[0032] In order to prevent external air from entering the inner head cover 11 through the gap between the neck hole 14 and the neck, the neck sealing sheath 13 is made of elastic material. After the head passes through the neck hole 14 and enters the inner head cover 11, the periphery of the neck hole 14 is pressed against the neck of the user under the action of its own elastic restoring force, thereby preventing external air from entering the inner head cover 11 through the gap between the neck hole 14 and the neck.

[0033] It is also understandable that the outer head cover 12 and the inner head cover 11 are both spherical in design, and the inner cavity volume of the outer head cover 12 is larger or much larger than the inner cavity volume of the inner head cover 11, so that more air can be stored in the air storage cavity.

[0034] In order to facilitate the user to wear and use the protective device 10 for a longer period of time, the carbon dioxide absorbent box 15 contains an oxygen generator that absorbs carbon dioxide and generates oxygen.

[0035] In one embodiment, the oxygen generator is potassium superoxide, which absorbs carbon dioxide and generates oxygen, and the reaction formula is as follows:

[0036] 4KO2+2CO2=2K2CO3+3O2

[0037] When using the protective device of the present embodiment, the user extends the head from the position of the neck hole 14 into the inner hood when wearing it, and the neck sealing sheath 13 is close to the user's neck and forms a seal to prevent harmful gases from entering the inside of the hood from there. When the user exhales, the exhaled gas must pass through the carbon dioxide absorbent box 15 before entering the gas storage cavity of the inner and outer hoods 12 interlayers, and this process can absorb and remove the carbon dioxide exhaled by the population. When the user inhales, the gas inhaled is temporarily stored in the gas storage cavity of the inner and outer hoods 12 interlayers, and the gas inhaled by the user must also pass through the carbon dioxide absorbent box 15 before entering the inner hood 11 for the user to inhale, and this setting further controls the proportion of carbon dioxide in the gas inhaled by the user. The user has established an isolated breathing cycle by reciprocating according to the above-mentioned gas path logic, which can ensure that the user no longer breathes the gas from the outside within a certain period of time, avoid the harmful gases in the external environment from causing harm to people, and provide respiratory protection for the user's escape.

[0038] Furthermore, the protective device 10 also includes an oxygen supply device arranged at the bottom of the inner head cover 11 or the outer head cover 12.

[0039] It can be understood that an oxygen generator is provided in the oxygen supply device, and the oxygen generator is preferably chlorate.

[0040] It can also be understood that the oxygen supply equipment is an oxygen storage bottle 16, which can be placed outside the inner head cover 11 and the outer head cover 12, and transport oxygen to the gas storage cavity through the oxygen supply tube and the gas supply nozzle 17.

[0041] Preferably, the oxygen storage bottle 16 is provided with a one-way air supply negative pressure switch connected to the air supply nozzle 17, and when the user inhales, the negative pressure switch is turned on and oxygen is supplied. When the user exhales, the negative pressure switch is turned off.

[0042] In this embodiment, the oxygen supply device is an annular high-pressure oxygen storage bottle 16, the first end of which is sealed, and the second end of which is provided with a control switch 20 and the gas supply nozzle 17. When in use, the head is passed through the neck hole 14 into the inner head cover 11, and when the head of the user hits the control switch 20, the control switch 20 is triggered to open.

[0043] For the convenience of carrying, the oxygen supply device is configured as an annular high-pressure oxygen storage bottle 16. When the protective device 10 is worn, the annular high-pressure oxygen storage bottle 16 is wrapped around the periphery of the neck.

[0044] Specifically, Figure 2 As shown, in order to facilitate the installation and sealing of the annular high-pressure oxygen storage bottle 16, the protective device 10 also includes an annular sleeve 18 which is sleeved on the outside of the annular high-pressure oxygen storage bottle 16, and the bottom end of the inner head cover 11 is turned outward from the inner side of the annular sleeve 18 around the bottom of the annular sleeve 18 and fixedly connected to the outer side of the arc-shaped sleeve, and the bottom end of the outer head cover 12 is turned inward from the outer side of the annular sleeve 18 around the bottom of the annular sleeve 18 and fixedly connected to the bottom or inner side of the annular sleeve 18.

[0045] During assembly, the annular sheath 18 is first wrapped around the annular high-pressure oxygen storage bottle 16, and then the bottom end of the inner head cover 11 is turned outward from the inside of the annular sheath 18 around the bottom of the annular sheath 18 and fixedly bonded to the outside of the arc-shaped sheath. Then, the bottom end of the outer head cover 12 is turned inward from the outside of the annular sheath 18 around the bottom of the annular sheath 18 and fixedly bonded to the bottom or inner side of the annular sheath 18, thereby realizing a sealed and fixed connection between the inner head cover 11, the outer head cover 12, the outside of the high-pressure oxygen storage bottle 16 and the annular sheath 18.

[0046] Furthermore, the air supply nozzle 17 is provided with an air supply hose 19 which is connected to and communicated with the air supply nozzle 17. The air supply hose 19 is located in the air storage cavity. The outer cover 12 is provided with an oxygen inhalation hole at a position corresponding to the air supply hose 19 through which the air supply hose 19 can extend. The outer cover 12 is also provided with an easy-tear cover 21 which is bonded to the outer cover 12 and is used to seal and cover the oxygen inhalation hole.

[0047] When the user feels unwell, the easy-tear cover 21 can be torn off, and the air supply hose 19 can be pulled out from the oxygen inhalation hole for the user to inhale oxygen alone, thereby maintaining the body's oxygen content and providing protection for emergency medical treatment.

[0048] Preferably, the inner head cover 11 is an inner head cover 11 made of elastic non-air-permeable flame-retardant material, the outer head cover 12 is an outer head cover 12 made of heat-insulating flame-retardant material, and anti-fog lenses 22 are provided at the eye positions on the outer head cover 12 and the inner head cover 11. The neck sealing sheath 13 is a disc-shaped neck sealing sheath 13 made of flame-retardant elastic material.

[0049] Furthermore, a first elastic shock absorbing module 23 is fixedly provided on the top outer side surface of the inner head cover 11 .

[0050] And / or, a second elastic shock absorbing module is fixedly provided on the inner side surface of the top of the outer head cover 12.

[0051] And / or, a third elastic shock absorbing module is fixedly provided on the top outer side surface of the outer head cover 12.

[0052] By setting a first elastic shock-absorbing module 23 on the top of the inner head cover 11, or setting a second elastic shock-absorbing module or a third elastic shock-absorbing module on the top of the outer head cover 12, when the top of the head is hit, the elastic shock-absorbing module can reduce the impact on the head to a certain extent and play a role in protecting the head.

[0053] Furthermore, an overpressure exhaust valve 24 is provided at the mouth of the outer hood 12, and the overpressure exhaust valve 24 is connected to the gas storage cavity. When the air pressure in the inner hood 11 or the gas storage cavity is high, the overpressure exhaust valve 24 can be opened to control the one-way discharge of the gas in the inner hood 11 or the gas storage cavity.

[0054] In order to facilitate the user to communicate with the outside world, a loudspeaker 25 is provided at the mouth position of the inner head cover 11 and the outer head cover 12. The loudspeaker 25 is sealed from the outer side of the outer head cover 12 to the inner side of the inner head cover 11, and a horn-shaped sound receiving cover is provided on the inner side of the loudspeaker 25.

[0055] When in use, the loudspeaker 25 can amplify the sound emitted from the user's mouth and transmit it outward, thereby facilitating the user to communicate with the outside world.

[0056] In addition, in the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", "stacked" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An isolation type respiratory protection device, characterized in that: The protective device includes an inner cover, a sealing cover and an outer cover arranged outside the inner cover, the interlayer between the inner cover and the outer cover forms an air storage cavity, the inner cover is provided with a carbon dioxide absorbent box, the carbon dioxide absorbent box communicates with the inner cavity of the inner cover and the air storage cavity, the inner cover and the outer cover are provided with openings for part or all of the body to enter the inner cover, and the openings are provided with sealing devices that can seal the openings.

2. The isolating breathing protection device according to claim 1, characterized in that: The protective device also includes an oxygen supply device arranged inside the inner cover or the outer cover or an oxygen supply device arranged outside the outer cover, and the air supply nozzle of the oxygen supply device extends into the air storage cavity.

3. The isolating breathing protection device according to claim 2, characterized in that: The inner cover is an inner head cover for accommodating the head, the outer cover is an outer head cover which is a sealing cover and is arranged outside the inner head cover, the sealing device is a neck sealing sleeve which is arranged at the bottom of the inner head cover, and the opening is a neck hole which is arranged in the middle of the neck sealing sleeve and can allow the neck seal to pass through and extend into.

4. The isolating breathing protection device according to claim 3, characterized in that: The oxygen supply device is an annular high-pressure oxygen storage bottle arranged in the outer head cover or the inner head cover, the first end of the annular high-pressure oxygen storage bottle is sealed, and the second end of the annular high-pressure oxygen storage bottle is provided with a control switch and the air supply nozzle.

5. The isolating breathing protection device according to claim 4, characterized in that: The protective device also includes an annular sheath that is sleeved on the outside of the annular high-pressure oxygen storage bottle. The bottom end of the inner head cover is turned outward from the inner side of the annular sheath around the bottom of the annular sheath and is fixedly connected to the outside of the annular sheath. The bottom end of the outer head cover is turned inward from the outer side of the annular sheath around the bottom of the annular sheath and is fixedly connected to the bottom or inner side of the annular sheath.

6. The isolating breathing protection device according to claim 4, characterized in that: The air supply nozzle is provided with an air supply hose connected to and communicated with the air supply nozzle, the air supply hose is located in the air storage cavity, and the outer cover is provided with an oxygen inhalation hole for the air supply hose to extend out at a position corresponding to the air supply hose, and the outer cover is also provided with an easy-tear cover bonded to the outer cover and used to seal and cover the oxygen inhalation hole.

7. The isolating type respiratory protection device according to claim 3, characterized in that: The inner head cover is made of elastic non-air-permeable flame-retardant material, and the outer head cover is made of heat-insulating flame-retardant material. Anti-fog lenses are arranged at the eye positions on the outer head cover and the inner head cover.

8. The isolating breathing protection device according to claim 3, characterized in that: The neck sealing sheath is a disc-shaped neck sealing sheath made of flame-retardant elastic material.

9. The isolating breathing protection device according to claim 3, characterized in that: A first elastic shock absorbing module is fixedly disposed on the top outer side surface of the inner head cover; And / or, a second elastic shock absorbing module is fixedly provided on the inner side surface of the top of the outer head cover; And / or, a third elastic shock absorbing module is fixedly provided on the top outer side surface of the outer head cover.

10. The isolating type respiratory protection device according to claim 3, characterized in that: An overpressure exhaust valve is provided at the mouth of the outer head cover, and the overpressure exhaust valve is connected to the air storage chamber; Loudspeakers are also provided at the mouth positions of the inner and outer head covers. The loudspeakers are sealed and penetrate from the outer side of the outer head cover to the inner side of the inner head cover. A horn-shaped sound receiving cover is provided on the inner side of the loudspeaker.

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