CN202146531U - Breather capable of recycling air - Google Patents
Breather capable of recycling air Download PDFInfo
- Publication number
- CN202146531U CN202146531U CN 201120236805 CN201120236805U CN202146531U CN 202146531 U CN202146531 U CN 202146531U CN 201120236805 CN201120236805 CN 201120236805 CN 201120236805 U CN201120236805 U CN 201120236805U CN 202146531 U CN202146531 U CN 202146531U
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- check valve
- valve
- expiration
- mask
- respirator
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Abstract
The utility model discloses a breather capable of recycling air, which comprises a breathing mask communicated with a gas source, a mouth and nose mask arranged in the breathing mask, a breath buffer body, a soft air pipe, a carbon dioxide purification can, a return pipe and a third one-way valve, wherein at least one first one-way valve and at least one second one-way valve opposite to the first one-way valve are arranged on the mouth and nose mask; a breath buffer chamber is arranged in the breath buffer body; the breath buffer body is connected with the second one-way valve; the breath buffer chamber is communicated with the mouth and nose mask when the second one-way valve is opened; one end of the soft air pipe is communicated with the breath buffer chamber; an input end of the carbon dioxide purification can is communicated with the other end of the soft air pipe; one end of the return pipe is communicated with an output end of the carbon dioxide purification can while the other end of the return pipe is communicated with the breathing mask; and the third one-way valve is arranged at the connection of the return pipe and the breathing mask.
Description
Technical field
The utility model relates to a kind of air respiratorresuscitator, relates in particular to a kind of respirator of reusable edible air.
Background technology
Air respiratorresuscitator is a kind of breathing equipment that is used under the anaerobic environment; It is widely used in departments such as fire-fighting, chemical industry, boats and ships, oil, smelting, warehouse, laboratory, mine; Supply the fireman or the rescue personnel that speedily carries out rescue work under various environment such as dense smoke, poison gas, steam or anoxic, to put out a fire safely and effectively, use when rescue and relief work and rescue.
Existing air respiratorresuscitator comprises full facepiece mask, air duct and feeder.Wherein full facepiece mask afford a wide field of vision, become clear, airtight good; The feeder volume is less, in light weight, stable performance, and backboard is light, gas cylinder safety, and relief valve unit also possesses warning function.
But also there is one greatest problem in existing air respiratorresuscitator in the process of using, and promptly gas cylinder is short service time, and oxygen utilization rate is low.The gas cylinder short trouble that can bring the frequent change source of the gas for the rescue process usually service time reduces rescue efficiency, even also can cause long distance rescue to implement.In some cases, source of the gas weak point service time also can place very dangerous condition with the user of service.
Summary of the invention
The goal of the invention of present technique scheme provides a kind of air circulation and utilizes respirator; This air circulation utilizes respirator the gas part that the user breathes out to be flowed to after treatment again the user as fresh air continuation use, thereby has realized that the gas-storing capacity that does not increase respirator just prolongs the source of the gas purpose of service time.
In order to realize the foregoing invention purpose, the utility model provides a kind of air circulation to utilize respirator, it comprise one with the breathing mask of source of the gas conducting, in addition, this air circulation utilizes respirator also to comprise:
One oronasal mask, it is located in the said breathing mask;
At least one first check valve, it is located on the said oronasal mask, and said oronasal mask is opened and said breathing mask conducting through said at least one first check valve;
One second check valve, it is located on the said oronasal mask, said second check valve that being provided with of the direction and first check valve is in the opposite direction;
One expiration buffer body has an expiration cushion chamber in it, said expiration buffer body is connected with said second check valve, and said expiration cushion chamber is opened and said oronasal mask conducting through second check valve;
One flexible pipe of supplying gas, the one of which end is communicated with said expiration cushion chamber;
One purifying carbon dioxide jar, its input is communicated with the other end of the said flexible pipe of supplying gas;
One return duct, the one of which end is communicated with the output of said purifying carbon dioxide jar, and the other end of said return duct is communicated with said breathing mask;
One the 3rd check valve, it is arranged at the junction of said return duct and breathing mask.
When the user was air-breathing, the gas pressure intensity in the oronasal mask impelled first one-way valve opens less than the gas pressure intensity in the breathing mask, and the fresh air in the breathing mask enters in the oronasal mask, supplied the user to breathe use; When the user exhaled, the gas pressure intensity in the oronasal mask impelled second one-way valve opens in the opposite direction with being provided with of first check valve greater than the gas pressure intensity in the expiration cushion chamber; The gas of being breathed out gets in the expiration cushion chamber; Send into the purifying carbon dioxide jar by the breathing cushion chamber through the flexible pipe of supplying gas then and carry out purified treatment, the purifying carbon dioxide jar is sent in the return duct after the waste gas purification of breathing out is filtered; When the atmospheric pressure in the return duct during greater than the atmospheric pressure in the breathing mask; The 3rd one-way valve opens, the gas of process purification filtering is fed in the breathing mask, realizes the recycle to gas.In addition, during gas pressure intensity that the 3rd check valve also is used to prevent to carry greater than return duct when the gas pressure intensity in the breathing mask, the air in the breathing mask flows backwards.
Utilize in the respirator in above-mentioned air circulation, also be provided with a minute-pressure outlet valve on the said expiration buffer body.A gas part that gets in the expiration cushion chamber enters into the flexible pipe of supplying gas, and another part is discharged through the minute-pressure outlet valve.This minute-pressure outlet valve can improve the gas pressure intensity in the expiration cushion chamber, thereby power is provided for the backflow of the gas behind the purification filtering.
Said minute-pressure outlet valve comprises:
One valve body, it is located on the said expiration buffer body;
One spring, the one of which end is fixedly connected with said valve body;
One valve block, it is fixedly connected with the other end of said spring;
One air pressure adjustment knob is located on the said valve body.
Valve block is under the effect of spring force; Realize improving the purpose of the gas pressure intensity in the expiration cushion chamber; The air pressure adjustment knob comprises regulates bolt and compression spring; The gas pressure intensity of rotation adjusting bolt in can free adjustment expiration cushion chamber regulated supply gas flexible pipe gas and the ratio of discharging gas of getting into.
Utilize in the respirator in above-mentioned air circulation, be provided with a calcium hydroxide filtering layer and a filter screen in the purifying carbon dioxide jar.
Utilize in the respirator in above-mentioned air circulation, the quantity of said first check valve is two.
The described air circulation of the utility model is utilized respirator owing to adopted technique scheme; Make it can realize recycle to the gas that supplies breathing usefulness; Thereby improved the service time of gas that single gas cylinder provides greatly, prolonged more than one times service time than existing gas cylinder.
Description of drawings
Fig. 1 utilizes respirator structural representation in one embodiment for the described air circulation of the utility model.
Fig. 2 utilizes oronasal mask structural front view in one embodiment in the respirator for the described air circulation of the utility model.
Fig. 3 is the side view of oronasal mask shown in Figure 2.
Fig. 4 utilizes first check valve structural representation in one embodiment in the respirator for the described air circulation of the utility model.
Fig. 5 utilizes second check valve structural representation in one embodiment in the respirator for the described air circulation of the utility model.
Fig. 6 utilizes the structural representation of expiration cushion chamber in the respirator and minute-pressure outlet valve provided thereon for the described air circulation of the utility model.
The specific embodiment
To combine Figure of description and concrete embodiment to utilize respirator to do further detailed description below to the described air circulation of the utility model.
As shown in Figure 1, the air circulation in the present embodiment utilizes respirator to comprise breathing mask 1; Oronasal mask 3 is located in the breathing mask 1; Oronasal mask 3 is provided with two first check valves 2 (intake valve) and one second check valve 4 (air outlet valve), second check valve 4 that being provided with of the direction and first check valve 2 is in the opposite direction; The expiration buffer body; Has an expiration cushion chamber 5 in it; This expiration buffer body is connected with second check valve 4, and expiration cushion chamber 5 is opened and oronasal mask 3 conductings through second check valve 4, also has a minute-pressure outlet valve 7 and air pressure adjustment knob 6 on the expiration buffer body; The supply gas two ends of flexible pipe 8 are communicated with the input of expiration cushion chamber 5 and purifying carbon dioxide jar 9 respectively; The two ends of return duct 10 are communicated with the output connected sum breathing mask 1 of purifying carbon dioxide jar 9 respectively; The 3rd check valve 11 (return valve) is arranged at the junction of return duct 10 and breathing mask 1.
As shown in Figures 2 and 3, the oronasal mask 3 in the present embodiment is the silica gel material, and its shape and people's face contour matches, the people's that can effectively fit face.As can beappreciated from fig. 2, being provided with of intake valve (first check valve) 2 that is provided with on the oronasal mask 3 and air outlet valve (second check valve) 4 is in the opposite direction.
As shown in Figure 4; First check valve comprises valve seat 22 and valve block 21, and its middle valve plate 21 is the T type, and its head is provided with down; When the air pressure of valve block 21 tops of T type during greater than the air pressure of below; First one-way valve opens, when the air pressure of valve block 21 belows of T type during greater than the air pressure of top, first check valve is closed.
As shown in Figure 5; Second check valve has the structure identical with first check valve, and it also comprises valve seat 42 and valve block 41, and just the head of the valve block 41 of T type upwards is provided with; When the air pressure of valve block 41 tops of T type during greater than the air pressure of below; Second check valve is closed, when the air pressure of valve block 41 belows of T type during greater than the air pressure of top, and second one-way valve opens.
As shown in Figure 6, have expiration cushion chamber 5 in the expiration buffer body in the present embodiment, an end (inlet) of this expiration buffer body is connected with second check valve (air outlet valve), and its other end (outlet) is provided with the minute-pressure outlet valve.This minute-pressure outlet valve comprises: valve body 71, and it is fixed on the expiration buffer body; One end of spring 72 is fixedly connected with valve body 71; Valve block 73 is fixedly connected with the other end of spring 72; The air pressure adjustment knob is located on the valve body, comprises regulating bolt 61 and compression spring 62.Valve block 73 realizes improving the purpose of the gas pressure intensity in the expiration cushion chamber 5 under the effect of spring 72 elastic force.Rotation adjusting bolt 61 can free adjustment expiration cushion chamber gas pressure intensity in 5, regulate supply gas flexible pipe gas and the ratio of discharging gas of getting into.
Air circulation in the present embodiment utilizes respirator in use: when the user is air-breathing; Gas pressure intensity in the oronasal mask 3 is less than the gas pressure intensity in the breathing mask 1; Impel first check valve 2 to open, the fresh air in the breathing mask 1 enters in the oronasal mask 3, supplies the user to breathe use; When the user exhales; Gas pressure intensity in the oronasal mask 3 is greater than the gas pressure intensity in the expiration cushion chamber 5; Impel second check valve 4 to open; The gas of being breathed out gets in the expiration cushion chamber 5, and the gas part of these exhalation is sent into purifying carbon dioxide jar 9 through the flexible pipe 8 of supplying gas and carried out purified treatment, and another part is discharged through minute-pressure outlet valve 7.After purifying carbon dioxide jar 9 purifies the gas filtration of breathing out; Send into return duct 10; When the atmospheric pressure in the return duct 10 during greater than the atmospheric pressure in the breathing mask 1; The 3rd check valve (return valve) 11 is opened, and the gas of process purification filtering is fed in the breathing mask 1, realizes the recycle to gas.
Calcium hydroxide filtering layer in the purifying carbon dioxide jar in the present embodiment is used for absorbing carbon dioxide, and filter screen is used for gas is filtered.
Be noted that above enumerate be merely specific embodiment of the present invention, obviously the invention is not restricted to above embodiment, many similar variations are arranged thereupon.If those skilled in the art all should belong to protection scope of the present invention from all distortion that content disclosed by the invention directly derives or associates.
Claims (5)
1. an air circulation is utilized respirator, it comprise one with the breathing mask of source of the gas conducting, it is characterized in that said air circulation utilizes respirator also to comprise:
One oronasal mask, it is located in the said breathing mask;
At least one first check valve, it is located on the said oronasal mask, and said oronasal mask is opened and said breathing mask conducting through said at least one first check valve;
One second check valve, it is located on the said oronasal mask, said second check valve that being provided with of the direction and first check valve is in the opposite direction;
One expiration buffer body has an expiration cushion chamber in it, said expiration buffer body is connected with said second check valve, and said expiration cushion chamber is opened and said oronasal mask conducting through second check valve;
One flexible pipe of supplying gas, the one of which end is communicated with said expiration cushion chamber;
One purifying carbon dioxide jar, its input is communicated with the other end of the said flexible pipe of supplying gas;
One return duct, the one of which end is communicated with the output of said purifying carbon dioxide jar, and the other end of said return duct is communicated with said breathing mask;
One the 3rd check valve, it is arranged at the junction of said return duct and breathing mask.
2. air circulation as claimed in claim 1 is utilized respirator, it is characterized in that, also is provided with a minute-pressure outlet valve on the said expiration buffer body.
3. according to claim 1 or claim 2 air circulation is utilized respirator, it is characterized in that, is provided with a calcium hydroxide filtering layer and a filter screen in the purifying carbon dioxide jar.
4. air circulation as claimed in claim 2 is utilized respirator, it is characterized in that, said minute-pressure outlet valve comprises:
One valve body, it is located on the said expiration buffer body;
One spring, the one of which end is fixedly connected with said valve body;
One valve block, it is fixedly connected with the other end of said spring;
One air pressure adjustment knob is located on the said valve body.
5. air circulation as claimed in claim 1 is utilized respirator, it is characterized in that, the quantity of said first check valve is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120236805 CN202146531U (en) | 2011-07-06 | 2011-07-06 | Breather capable of recycling air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120236805 CN202146531U (en) | 2011-07-06 | 2011-07-06 | Breather capable of recycling air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202146531U true CN202146531U (en) | 2012-02-22 |
Family
ID=45587610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120236805 Expired - Fee Related CN202146531U (en) | 2011-07-06 | 2011-07-06 | Breather capable of recycling air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202146531U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103845782A (en) * | 2014-03-14 | 2014-06-11 | 鹤壁职业技术学院 | Medical oxygen inhalation ventilation device |
| CN104026790A (en) * | 2014-06-20 | 2014-09-10 | 吴昊 | Underground coal mine comprehensive-protection safety helmet |
| CN105288889A (en) * | 2015-11-25 | 2016-02-03 | 南安市腾龙专利应用服务有限公司 | Breathing device capable of being used in plateau |
| CN107080904A (en) * | 2017-05-15 | 2017-08-22 | 北京机械设备研究所 | One kind is saved oneself breathing equipment |
| CN111418927A (en) * | 2020-04-30 | 2020-07-17 | 成都市温江区人民医院 | Multifunctional air purification mask |
-
2011
- 2011-07-06 CN CN 201120236805 patent/CN202146531U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103845782A (en) * | 2014-03-14 | 2014-06-11 | 鹤壁职业技术学院 | Medical oxygen inhalation ventilation device |
| CN104026790A (en) * | 2014-06-20 | 2014-09-10 | 吴昊 | Underground coal mine comprehensive-protection safety helmet |
| CN105288889A (en) * | 2015-11-25 | 2016-02-03 | 南安市腾龙专利应用服务有限公司 | Breathing device capable of being used in plateau |
| CN105288889B (en) * | 2015-11-25 | 2018-10-09 | 南安市腾龙专利应用服务有限公司 | It is a kind of can be in the breathing equipment that plateau uses |
| CN107080904A (en) * | 2017-05-15 | 2017-08-22 | 北京机械设备研究所 | One kind is saved oneself breathing equipment |
| CN111418927A (en) * | 2020-04-30 | 2020-07-17 | 成都市温江区人民医院 | Multifunctional air purification mask |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120222 Termination date: 20200706 |
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| CF01 | Termination of patent right due to non-payment of annual fee |