CN203763701U - Positive pressure air-purifying respirator - Google Patents
Positive pressure air-purifying respirator Download PDFInfo
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- CN203763701U CN203763701U CN201420176099.6U CN201420176099U CN203763701U CN 203763701 U CN203763701 U CN 203763701U CN 201420176099 U CN201420176099 U CN 201420176099U CN 203763701 U CN203763701 U CN 203763701U
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- air
- positive pressure
- air bag
- main airway
- pressure air
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Abstract
本实用新型公开了一种正压空气净化呼吸器，包括佩戴于面部的面罩以及用于提供净化空气的主机，所述面罩与主机利用主气道连接；所述主气道上设置有与主气道连通的缓冲气囊。具有上述结构的正压空气呼吸器，在呼气时大量储存气体，并在吸气时迅速排出供应吸气需求。在满足人体单次吸气量的前提下，降低了主机的功率，从而减小了主机的体积与功耗，降低了制造成本。
The utility model discloses a positive pressure air-purifying respirator, which comprises a mask worn on the face and a host for providing purified air, the mask and the host are connected by a main airway; Channel connected cushion airbag. The positive pressure air respirator with the above structure stores a large amount of gas when exhaling, and quickly discharges it to supply the inhalation demand when inhaling. On the premise of satisfying the single inhalation volume of the human body, the power of the host is reduced, thereby reducing the volume and power consumption of the host, and reducing the manufacturing cost.
Description
Technical field
The utility model relates to a kind of positive pressure respirator.
Background technology
Respirator claims again air-stored breathing mask, sometimes also referred to as fire mask, it is the open empty respirator of a kind of self-sufficiency, be widely used in the departments such as fire-fighting, chemical industry, boats and ships, oil, smelting, warehouse, laboratory, mine, for fireman or the rescue personnel that speedily carries out rescue work, under the various environment such as dense smoke, poison gas, steam or anoxic, put out a fire safely and effectively, rescue and relief work and rescue.
Respirator can be divided into filtering type and positive-pressure type by operation principle.So-called positive-pressure type, both in respirator all the time in barotropic state, the gas that extraneous air cannot be entered from filtration system partly enters respirator interior.
The pure air of positive pressure respirator is all to be provided by main frame, and its power must mate with people's respiratory capacity.The too small meeting of tolerance allows user feel unsmooth breath, and by increasing power, increases power consumption and the volume that tolerance will certainly strengthen main frame merely.And because the air-breathing of people not carries out always, but with expiration interval, increase merely air inflow and also can make air pressure increase, improve step-down cost.
Utility model content
For the technical problem of above-mentioned existence, the utility model provides a kind of positive pressure air purifying respirator, utilizes buffer air bag to collect purifying air that main frame produces when people exhales, and enough tolerance is provided when people is air-breathing.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of positive pressure air purifying respirator, comprises being worn on facial face shield and for the main frame purifying air is provided, described face shield is connected with host computer using main airway; On described main airway, be provided with the buffer air bag being communicated with main airway.
As a kind of improvement, described buffer air bag is helical form, coils on main airway.Guaranteeing under the prerequisite of buffer air bag capacity, dwindling buffer air bag as far as possible and take up space.
As a kind of improvement, described main frame comprises filter core box and cylinder; On described cylinder block, have air inlet and gas outlet, described air inlet is connected with filter core box, and described gas outlet is connected with main airway.Utilize filter element filtering that pure air is provided, than utilizing air bottle to provide compression pure air cost lower, service time is also more lasting.
As a kind of improvement, some removable filter cores are housed in described filter core box.Can use different filtering materials to combine according to the difference of pollutants in air (as haze, dry dust, prevention respiratory infectious disease etc.), reach the object of a tractor serves several purposes.
As a kind of improvement, also comprise an air-flow control box; Described air-flow control box comprises the normally open solenoid valve being arranged on main airway; On main airway after normally open solenoid valve, be connected with control air bag; On described control air bag and air-flow control box box body, the electric contact that connects being connected is all installed; Two connect electric contact and disconnect when controlling air bag unaerated, during inflation, contact; The described electric contact that connects is connected with normally open solenoid valve power line.Air-flow control box, for controlling the switching of main airway, makes buffer air bag inflation simultaneously or abandons, and its rhythm is consistent with people's breath rhythm.
As a kind of improvement, the main airway between described face shield and air-flow control box is helical form.It draws at ordinary times, can stretch again to provide and do enough length when needing.The scope of activities that can guarantee user's head is not limited, and can avoid again that main airway is long to bring inconvenience.
As a kind of improvement, described face shield comprises face shield body; Described face shield body relies on the hangers of the right and left to be fixed on face; Also comprise a respirator, described respirator is connected with main airway.The mode that hangers is worn is simple and convenient.
As a kind of improvement, the position that described face shield is corresponding with people's nose is provided with nose cup; Nose cup shape is corresponding with people's nose, and surrounding is provided with rubber cushion.Nose cup avoids the nose of wearer receive compressing and do not feel like oneself, and rubber cushion can increase air-tightness, can make wearing more comfortable again.
As a kind of improvement, described respirator comprises gas delivery header, check valve, decompression air bag; Described decompression air bag is communicated with main airway; Check valve inlet end is communicated with decompression air bag, and outlet side is connected with gas delivery header.Decompression air bag, for the air-breathing initial period provides source of the gas, also possesses the function for the decompression of main airway gas in addition.
As a kind of improvement, described check valve comprises cylinder body and the piston that can seesaw in cylinder body; Described cylinder body oral area is tubaeform, near bottom one side, is communicated with decompression air bag; Piston rear end is connected with the diaphragm of arc; In gas delivery header, be provided with exhaust check valve.Diaphragm plays booster action, the convenient piston that drives.
Usefulness of the present utility model is: there is the positive pressure respirator of said structure, and mass storage gas when exhaling, and when air-breathing, discharge rapidly the air-breathing demand of supply.Meeting under the prerequisite of human body single inspiratory capacity, reducing the power of main frame, thereby reducing volume and the power consumption of main frame, reducing manufacturing cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is main machine structure schematic diagram.
Fig. 3 is main frame external structure schematic diagram.
Fig. 4 is air-flow control box structural representation.
Fig. 5 is respiratory organ structure schematic diagram.
Mark in figure: 1 face shield body, 2 air-flow control boxes, 3 main frames, 4 main airways, 5 buffer air bags, 6 filter core boxes, 11 nose cups, 12 hangers, 13 rubber cushions, 21 normally open solenoid valves, 22 control air bag, 23 connect electric contact, 24 clamps, 31 air admission holes, 32 cylinder bodies, 33 pistons, 34 batteries, 35 cylinders, 36 flywheels, 37 motors, 38 filter cores, 39 air inlet storehouses, 40 buttons, 51 check valves, 52 pistons, 53 gas delivery header, 54 diaphragms, 55 decompression air bags, 56 exhaust check valves, 57 supplement check valve, 58 cylinder bodies.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, shown in Figure 5:
The utility model comprises and is worn on facial face shield and for the main frame 3 purifying air is provided, described face shield utilizes main airway 4 to be connected with main frame 3; On described main airway 4, be provided with the buffer air bag 5 being communicated with main airway 4.The space taking in order to reduce buffer air bag 5, buffer air bag 5 can be done curl, coils on main airway 4.In order to increase the capacity of buffer air bag 5, can on main airway 4, be wound in bilayer.
Described face shield and common mouth mask are similar, comprise face shield body 1; Described face shield body 1 relies on the hangers 12 of the right and left to be fixed on face; Also comprise a respirator, described respirator is connected with main airway 4.The mode that hangers 12 is worn is simple and convenient.The position that face shield body 1 is corresponding with people's nose is provided with nose cup 11; Nose cup 11 shapes are corresponding with people's nose, and surrounding is provided with rubber cushion 13.Respirator comprises gas delivery header 53, check valve 51, decompression air bag 55; Described decompression air bag 55 is communicated with 4 with main airway; Check valve 51 inlet ends are communicated with decompression air bag 55, and outlet side is connected with gas delivery header 53.Check valve 51 comprises cylinder body 58 and the piston 52 that can seesaw in cylinder body 58, and its movement locus is as shown in Fig. 5 arrow; Described cylinder body 58 oral areas are tubaeform, near bottom one side, are communicated with decompression air bag 55; Piston 52 rear ends are connected with the diaphragm 54 of arc; In gas delivery header 53, be provided with exhaust check valve 56.Decompression air bag 55 is arranged on face shield body 1 inside, and gas delivery header 53 is arranged under people's nose.Main airway 4 is hidden in hangers 12, is connected with decompression air bag 55.Decompression air bag 55 should adopt certain pliability near a side of people's face, but be difficult for filling because of pressurization the material that exhaust is out of shape, forms, and to facial constriction, decompression air bag 55 outsides can select the flexible material of certain elastic force to form when avoiding inflating.Check valve 55 front ends also have a supplementary check valve 57, and its skin is provided with filtering material, and the tolerance providing when main frame 3 can not meet its air-breathing requirement, can supplement differed from tolerance.
As shown in Figure 2 and Figure 3:
Described main frame 3 comprises filter core box 6 and cylinder 35; On described cylinder 35 cylinder bodies 32, have air inlet and gas outlet, described air inlet is connected with filter core box 6, and described gas outlet is connected with main airway 4.Filter core box 6 is arranged on main frame 3 bottoms, and some removable filter cores 38 are housed in filter core box 6.Filter core 38 can according to the difference of service condition have for replacing.Filter core box 6 bottoms have some air admission holes 31, and top is air inlet storehouse 39.Air inlet storehouse 39 is connected with the air inlet of cylinder 35 cylinder bodies 32.Piston 33 is driven by motor 37, is specially motor 37 front ends and is fixed with the flywheel 36 that is driven rotation by motor 37; Flywheel 36 is connected with piston 33, and piston 33 can seesaw along with the rotation of flywheel 36 in cylinder body 32.Motor 37 is driven by battery 34, and button 40 can be to controlling motor 37 switches and regulating motor 37 rotating speeds.
As shown in Figure 4:
Air-flow control box 2 comprises the normally open solenoid valve 21 being arranged on main airway 4; On main airway 4 after normally open solenoid valve 21, be connected with and control air bag 22; On described control air bag 22 and air-flow control box 2 box bodys, be all provided be connected connect electric contact 23; Two connect electric contact 23 and disconnect when controlling air bag 22 unaerated, during inflation, contact; The described electric contact 23 that connects is connected with normally open solenoid valve 21 power lines.Control air bag 22 for controlling the switching of normally open solenoid valve 21, when controlling air bag 22 inflation, two connect electric contact 23 contacts, and normally open solenoid valve 21 power connections, close normally open solenoid valve 21.While controlling air bag 22 venting, connect electric contact 23 separately, normally open solenoid valve 21 power supplys disconnect, and normally open solenoid valve 21 is opened.Air-flow control box 2 is outer can arrange a clamp 24, in the time of use, can hang on clothes.Main airway 4 between face shield and air-flow control box 2 is helical form.
Workflow of the present utility model is: energising rear motor 37 starts flywheel driven 36, and flywheel 36 drives piston 33 that cylinder 35 is started working.Clean air after filter core box 6 filters finally enters cylinder 35 cylinder bodies 32 through air inlet storehouse 39.Piston 33 will have the gas of certain pressure through gas outlet, to be transported to main airway 4.
Main airway 4 is the main thoroughfare of gas transmission, main airway 4 be wound around buffer air bag 5(according to air demand number can be individual layer or bilayer), its major function is mass storage Compressed Gas when exhaling, and discharges rapidly the air-breathing demand of supply when air-breathing.In order to make buffer air bag 5 gas collection venting consistent with user's respiratory rate, on main airway 4, be provided with air-flow control box 2.Gas through main airway 4 enter normally open solenoid valve 21(namely no power for opening, after energising, close), because normally open solenoid valve 21 is existing in off-position, gas is by after normally open solenoid valve 21, a part enters the decompression air bag 55 being connected with main airway 4, after filling, the gas of decompression air bag 55 produces certain pressure (this air pressure one fixes on piston 52 and can block up in scope), its pressure impels another part gas to enter to control air bag 22 makes its expansion, and close after making to connect connected normally open solenoid valve 21 energisings of electric contact 23, gas enters buffer air bag 5 form certain pressure in main airway 4 after, making buffer air bag 5 start gas collection stores, for next breath is prepared.
Decompression air bag 55 is mainly the air-breathing initial period provides source of the gas, also possesses the decompression for main airway 4 gases simultaneously, and while avoiding user to breathe, air pressure is excessive.When air-breathing beginning, because its arc diaphragm 54 of suction function is to the interior motion of gas delivery header 53, and drive piston 52 to exit check valve 51, the interior gas of decompression air bag 55 enters gas delivery header 53 for air-breathing by check valve 55.Air bag 55 internal pressures that reduce pressure afterwards reduce, control air bag 22 venting in air-flow control box 2 reset, connecing electric contact 23 disconnects, normally open solenoid valve 21 cuts out, main airway 4 is opened, the Compressed Gas of buffer air bag 5 interior storages passes through rapidly main airway 4 to the interior make-up gas of decompression air bag 55, to meet user's single inspiratory capacity.During expiration, diaphragm 54 outwards moves and drives piston 52 that check valve 51 is blocked, and decompression air bag 55 is again inflated and entered respiration cycle next time, and breath is discharged face shields by exhaust check valve 56.
Existing air-purifying respirator equipment is heavy, volume is large, wear the equipment aspect problems such as inconvenience, complicated operation.This product main frame 3 small and exquisite, light user can carry, do not affect user's scope of activities, buffer air bag 5 designs have solved the problem of gas storage, hangers mouth mask shape face shield is worn conveniently, inner nose cup good leak tightness, can avoid not in filtering gas suction body, and user can regulate according to s own situation the throughput of air-purifying respirator, and this product also has the design that supplements tolerance, to improve user's comfort as far as possible.
Solve existing air-purifying respirator filter core and formed the problems such as constant, replacing is complicated.This product filter core box 6 can be torn open and close with main frame, and filter core box 6 can integral replacing, also can use different filtering materials to combine according to the difference of pollutants in air (as haze, dry dust, prevention respiratory infectious disease etc.), reaches the object of a tractor serves several purposes.
Solved the impact on people's sense organ in use of existing air-purifying respirator, the face shield of existing air-purifying respirator mostly is half bag type or full closed, can only under specific place, environment, use, and can not use in daily life.Rear outward appearance worn by this product face shield and common mouth mask difference is little, easily by user and the common people around, is accepted, and closes and coincide, and do not affect user's daily behaviors such as saying, listen, look with traditional aesthetic.The design of this product can fully realize the use of air-purifying respirator from specific to wide spectrum.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a positive pressure air purifying respirator, comprises being worn on facial face shield and for the main frame purifying air is provided, described face shield is connected with host computer using main airway; It is characterized in that: on described main airway, be provided with the buffer air bag being communicated with main airway.
2. a kind of positive pressure air purifying respirator according to claim 1, is characterized in that: described buffer air bag is helical form, coils on main airway.
3. a kind of positive pressure air purifying respirator according to claim 1, is characterized in that: described main frame comprises filter core box and cylinder; On described cylinder block, have air inlet and gas outlet, described air inlet is connected with filter core box, and described gas outlet is connected with main airway.
4. a kind of positive pressure air purifying respirator according to claim 3, is characterized in that: some removable filter cores are housed in described filter core box.
5. a kind of positive pressure air purifying respirator according to claim 1, is characterized in that: also comprise an air-flow control box; Described air-flow control box comprises the normally open solenoid valve being arranged on main airway; On main airway after normally open solenoid valve, be connected with control air bag; On described control air bag and air-flow control box box body, the electric contact that connects being connected is all installed; Two connect electric contact and disconnect when controlling air bag unaerated, during inflation, contact; The described electric contact that connects is connected with normally open solenoid valve power line.
6. a kind of positive pressure air purifying respirator according to claim 1, is characterized in that: the main airway between described face shield and air-flow control box is helical form.
7. a kind of positive pressure air purifying respirator according to claim 1, is characterized in that: described face shield comprises face shield body; Described face shield body relies on the hangers of the right and left to be fixed on face; Also comprise a respirator, described respirator is connected with main airway.
8. a kind of positive pressure air purifying respirator according to claim 7, is characterized in that: the position that described face shield is corresponding with people's nose is provided with nose cup; Nose cup shape is corresponding with people's nose, and surrounding is provided with rubber cushion.
9. a kind of positive pressure air purifying respirator according to claim 1, is characterized in that: described respirator comprises gas delivery header, check valve, decompression air bag; Described decompression air bag is communicated with main airway; Check valve inlet end is communicated with decompression air bag, and outlet side is connected with gas delivery header.
10. a kind of positive pressure air purifying respirator according to claim 9, is characterized in that: described check valve comprises cylinder body and the piston that can seesaw in cylinder body; Described cylinder body oral area is tubaeform, near bottom one side, is communicated with decompression air bag; Piston rear end is connected with the diaphragm of arc; In gas delivery header, be provided with exhaust check valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201420176099.6U CN203763701U (en) | 2014-04-11 | 2014-04-11 | Positive pressure air-purifying respirator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420176099.6U CN203763701U (en) | 2014-04-11 | 2014-04-11 | Positive pressure air-purifying respirator |
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| CN203763701U true CN203763701U (en) | 2014-08-13 |
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| CN201420176099.6U Expired - Fee Related CN203763701U (en) | 2014-04-11 | 2014-04-11 | Positive pressure air-purifying respirator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103933679A (en) * | 2014-04-11 | 2014-07-23 | 王勇 | Positive pressure air purification respirator |
| CN109276822A (en) * | 2017-07-19 | 2019-01-29 | 霍尼韦尔国际公司 | Powered Air Purifying Respirator (PAPR) with Eccentric Venturi Flow Rate Determination |
| CN111529978A (en) * | 2018-04-09 | 2020-08-14 | 江山显进机电科技服务有限公司 | Positive pressure air respirator capable of being inflated in one step |
| CN111544786A (en) * | 2018-04-09 | 2020-08-18 | 江山显进机电科技服务有限公司 | Positive pressure air respirator of air outlet connector for equipment |
-
2014
- 2014-04-11 CN CN201420176099.6U patent/CN203763701U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103933679A (en) * | 2014-04-11 | 2014-07-23 | 王勇 | Positive pressure air purification respirator |
| CN109276822A (en) * | 2017-07-19 | 2019-01-29 | 霍尼韦尔国际公司 | Powered Air Purifying Respirator (PAPR) with Eccentric Venturi Flow Rate Determination |
| US10960237B2 (en) | 2017-07-19 | 2021-03-30 | Honeywell International Inc. | Powered air-purifying respirator (PAPR) with eccentric venturi air flow rate determination |
| CN109276822B (en) * | 2017-07-19 | 2022-04-12 | 霍尼韦尔国际公司 | Powered Air Purifying Respirator (PAPR) with eccentric venturi air flow rate determination |
| US11918835B2 (en) | 2017-07-19 | 2024-03-05 | Honeywell International Inc. | Powered air-purifying respirator (PAPR) with eccentric venturi air flow rate determination |
| CN111529978A (en) * | 2018-04-09 | 2020-08-14 | 江山显进机电科技服务有限公司 | Positive pressure air respirator capable of being inflated in one step |
| CN111544786A (en) * | 2018-04-09 | 2020-08-18 | 江山显进机电科技服务有限公司 | Positive pressure air respirator of air outlet connector for equipment |
| CN111529978B (en) * | 2018-04-09 | 2021-06-04 | 兴化市天东软件科技有限公司 | One-step positive pressure air respirator |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20170411 |
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| CF01 | Termination of patent right due to non-payment of annual fee |