CN2250781Y - Portable air filtering respirator - Google Patents
Portable air filtering respirator Download PDFInfo
- Publication number
- CN2250781Y CN2250781Y CN 96214558 CN96214558U CN2250781Y CN 2250781 Y CN2250781 Y CN 2250781Y CN 96214558 CN96214558 CN 96214558 CN 96214558 U CN96214558 U CN 96214558U CN 2250781 Y CN2250781 Y CN 2250781Y
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- air
- electromagnetic pump
- shell
- respirator according
- respirator
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Abstract
The utility model relates to a portable air filtering respirator, comprising a small-size accumulator jar, a pressing air source, an air filter device, an air delivery hose and a hemihedral face mask, wherein, the air filter device comprises a water retaining container, an air lead-in opening and an air exhaust opening which are arranged on the water retaining container; the air outlet of the pressing air source is connected with a guide pipe which is communicated with the air lead-in opening and leads air under the water surface; the air exhaust opening is connected with one end of the air delivery hose; the other end of the air delivery hose is communicated with the hemihedral face mask. The portable air filtering respirator has the advantages of compact structure and favorable effect on dust filtration.
Description
The utility model relates to a kind of portable dustproof air filtration respirator of portable air filter ventilator, particularly single use.
One of portable type air filtration respirator of prior art can be referring to No. 94244438, Chinese utility model patent.This respirator comprises dc storage battery cell, the pressurized air source, air supplying hose and the face shield that are made of mini fan, DC micromotor, mini fan filter part etc.This device is by mini fan filter part dust laden air to be carried out dry type to filter, this dry type filtering material will filter the intrusion human body bronchiole that causes silicosis and the diameter of alveolar is 1～5 micron and 0.01～1 micron dust, the filter part will form huge windage in the blower fan import, increase blower fan and drag the direct current generator load, along with being adsorbed on the filter part, grit constantly increases, increase the weight of the load of blower motor more, even cause damage.Be to reduce blower fan import windage, have only the gas permeability that increases the filter part, this just can't filter the dust that diameter is 1～5 micron and 0.01～1 micron.
The portable type air filtration respirator of prior art generally all adopts dry type filter dirt mode, and air drying after filtering has excitant, no comfort to user's nasal membrane.When big, then dust will be attracted on the filter part and seriously stop up as dust laden air humidity, make the blower fan can't operate as normal, the inherent defect of Here it is mini fan filter dirt plenum system.The portable type air filtration respirator of prior art drags because of adopting dc motor, can't use both containing flammable dust and contain in the environment of fuel gas producing spark between carbon brush and the rotor.
Main purpose of the present utility model is to provide a kind of can the filtration can invade the human body bronchiole and alveolar diameter is 1～5 micron and 0.01～1 micron dust, again the water filtering type transportable respirators A of bringing comfort, schneiderian membrane being had no stimulation to the user.
Another purpose of the present utility model is to improve the pressurized air source of existing air filtration respirator, it is matched with above-mentioned water filter mode, and avoid producing spark, so that can be suitable for the fuel gas environment, provide the portable air that can be applicable to multiple occasion filter ventilator.
For realizing above purpose, the utility model provides a kind of portable air filter ventilator, comprise a small-sized accumulator jar, a pressurized air source, an air filter, an air delivery hose and a demifacet type mouth mask, this pressurized air source is driven by this small-sized accumulator jar power supply, the positive pressure air of its generation is by this air filter filtering dust, send into this demifacet type mouth mask through this air delivery hose, described air filter comprises a container that is filled with water and is located at an air introducing port and an air outlet on this container, connect a conduit on the gas outlet of described pressurized air source, this conduit is communicated with above-mentioned air introducing port, and air is introduced below the water surface, described air outlet connects an end of described air delivery hose, and the other end of this flexible pipe is communicated with described demifacet type mouth mask.
Be preferably in a bubble breaking net is set in the water container, to prevent on liquid level, forming big bubble.In the bottom of this container one sewage discharger can be set.But also the device of observing water surface elevation easily can be set on this container.
In order to make the pressurized air source microminiaturization, and avoid producing spark, pressurized air source preferably includes an air compression electromagnetic pump and a control circuit, described pump has the film lobe that circular haply and its middle part is provided with a permanent magnet, two pump case that are separately positioned on these film lobe both sides and are embedded with electromagnet, a plurality of breather check valves that are provided with on this pump case and an outgassing nonreturn valve and be formed on this film lobe and these two pump case between airtight film lobe oscillation space, described control circuit is that the alternating current of frequency adjustable is to drive this electromagnetic pump with the dc inverter of small-sized accumulator jar.Preferably described air compression electromagnetic pump is worked under resonant condition.
Preferably this respirator also comprises two shells that link into an integrated entity, described small-sized accumulator jar, control circuit board and air compression electromagnetic pump all are arranged on the inside of this shell, position corresponding to the breather check valve of described air compression electromagnetic pump on shell is provided with inlet channel, and the extension duct portion of the outgassing nonreturn valve of described air compression electromagnetic pump and the housing of water container can be made as one.
Can also install a gas sensor and buzzer additional in addition, to detect fuel gas and to send the alarm sound signal.
The starting switch of air pressure pump, the starting switch of gas sensor and the charging socket of small-sized accumulator jar preferably are set on the surface of described housing.
Above-mentioned purpose of the present utility model, characteristics and further feature are by becoming clearer below in conjunction with the accompanying drawing detailed description of the preferred embodiment.In the accompanying drawing:
Fig. 1 shows the portable air structure of filter of a preferred embodiment of the present utility model and forms schematic diagram, and emphasis has been represented the structure of air filter;
Fig. 2 shows the pressurized air source of the portable air filter of another preferred embodiment of the present utility model, and emphasis has been represented the structure of pressurized air source, and combustible gas sensor and warning device.
Fig. 3 a～3d shows the assembly structure schematic diagram according to another preferred embodiment of the present utility model, wherein Fig. 3 a is the front view of previous section, its external side view of Fig. 3 b, Fig. 3 c is the inside elevation view of removing behind the shell of front, Fig. 3 d is the decomposing schematic representation of internal structure.
Fig. 1 shows the structure of the air filtration respirator of a preferred embodiment of the present utility model and forms schematic diagram.This respirator comprises 3, one air delivery hose 4 of 2, one air filters of 1, one pressurized air source of a small-sized accumulator jar and a demifacet type mouth mask 5.Emphasis shows a kind of structure 5 forms of air filter 3 among Fig. 1, it comprises that one fills the container 30 of water, on its top upper side wall or the top have an air introducing port 31, the positive pressure air that pressurized air source can be produced by this air introducing port 31 is injected below the liquid levels by dress in one or extrapolation conduit 34.Also be provided with an air outlet 32 at the top of this container 30, this air outlet 32 connects described flexible pipe 4, and flexible pipe 4 is connected with demifacet type mouth mask 5.In this embodiment, also be provided with a bubble breaking net 33, it is positioned at below the liquid level, on the bottom of giving vent to anger of conduit 34, is used for the broken bubble that produces.This bubble breaking net plays important effect to filter dirt, and bubble is more little, and the air dust-laden that then leaches is few more, and the contact area of bubbling air and water is big more, makes filter effect better.This bubble breaking net obviously can be provided with a plurality of.For the ease of effluent sewerage, also be provided with sewage discharger 35 in container 30 bottoms in the present embodiment, it can take various known versions.In addition for the ease of observing and the control water injection rate, a device 36 that is used for observing liquid level can also be set, in this preferred embodiment, it adopts the transparent organic glass 36 that indicates scale, inlay the airtight surf zone that is connected container, obviously also can adopt the principle of linker to be configured to other version.In addition, what number in the figure 11 was represented is a switch, the through and off of its control pressurized air source.
Should be pointed out that and adopt above-mentioned water filter mode of the present utility model to have the inaccessible effect of dried filter mode that the portable air filter of prior art is adopted, it can the filtering diameter be the dust of 1～5 μ m and 0.01～1 μ m.When adopting dry type to filter, want to filter so little dust, must dwindle filter opening, can make the gas permeability variation, make the user have difficulty in breathing.Water filter mode of the present utility model has solved the contradiction between filter dirt diameter and the gas permeability.
In addition, above-mentioned diameter, promptly the dust of 1～5 μ m and 0.01～1 μ m diameter is the key factor that causes silicosis, therefore, application of the present utility model can reduce the risk factor of silicosis.
Fig. 2 shows the schematic diagram according to the pressurized air source of a preferred embodiment of the present utility model.Pressurized air source 2 comprises air compression electromagnetic pump 20 and a control circuit 29.This air compression electromagnetic pump 20 preferably adopts utility model application (the same applicant who submits to simultaneously with the application, exercise question is " an air compression electromagnetic pump ") described in pump, as shown in Figure 2, it comprises a circular and film lobe 21 that be embedded with a permanent magnet 22 in the middle part of it, pump case 23 is set to its bilateral symmetry, correspond respectively to permanent magnet 22 on the pump case 23 electromagnet 24 is housed, breather check valve 25 and outgassing nonreturn valve 26 also are housed.By the vibration of film lobe 21 between the airtight oscillation space that pump case and film lobe are limited, can be from outgassing nonreturn valve 26 output positive pressure air.In order to supply with alternating current for this pump, control circuit 29 can adopt various known inverter circuit structures, and preferably makes its frequency adjustable.Consider it is known technology, only show its input 291 and output 292 among the figure, input 291 links to each other with small-sized accumulator jar 1.The alternating current that output 292 produces is supplied with the electromagnet 24 of said pump respectively, thereby makes 20 work of air compression electromagnetic pump, and film lobe 21 is in oscillation space 27 internal vibrations.According to the needs of air decrement,, make the vibration of film lobe 21 can obtain best operating efficiency corresponding to this frequency resonance by adjusting the frequency of the alternating current that control circuit 29 produced.Because the air filtration respirator that is provided with does not use motor like this, thus can not produce spark, thus can be applied to the fuel gas environment.
In order to make the utility model can be applicable to various occasion, for example in the coal mine, the discharge rate of this occasion gas increases with driving, therefore needs periodically or in real time to detect the concentration of methane gas.For this reason, according to an embodiment of the present utility model, as shown in Figure 2, the buzzer 43 that a combustible gas sensor 42 can also be set and control by a sensor drive driving circuit 13.This sensor can adopt for example SnO
2Or Fe
2O
3Combustible gas sensor, buzzer can adopt PbTiO
3Piezoelectric buzzer etc., and this gas sensor preferably adopts the gas sensor of low-temperature working.The gas sensor of other type also can be set in other application scenario.Switch of number in the figure 41 expressions is used to control sensor and works in real time or at interval, the charging socket of label 12 expression accumulator jars 1.
Should be pointed out that above-mentioned pressurized air source owing to adopted miniature air compression electromagnetic pump, and produce the suitable ability of calming the anger 60～70 millimeters of water, thereby make the utility model can realize the purpose and the transportability of water filter.
Fig. 3 a, 3b, 3c and 3d show the assembly structure schematic diagram according to the portable air filter ventilator of another preferred embodiment of the present utility model, wherein Fig. 3 a is the front view of previous section, Fig. 3 b is its external side view, Fig. 3 c is an inside elevation view of removing the front shell body, and Fig. 3 d is the decomposing schematic representation of internal structure.This respirator have the shell 60,60 that is divided into two bodies ', a shell 60 ' on be respectively arranged with inlet channel 61 corresponding to the position of the breather check valve 25 of air compression electromagnetic pump 20, in illustrated embodiment, water container 3 and its shell 60 ' be made as one, make its overall structure compact more, obviously this water container 3 also can separately make be fixed on again this shell 60 ' on.In this embodiment with gas sensor 43 and buzzer 42, the gauge tap 11 of air compression electromagnetic pump 20 and the working control switch 41 of gas sensor 43 all be located at the same side shell 60 ' one protrude out on the position, make its compact conformation, attractive in appearance.Those skilled in the art will appreciate that also they to be arranged on any suitable position, and according to different needs, gas sensor 43, buzzer 42 and its gauge tap 41 can be selected to adopt.
Described air compression electromagnetic pump 20 be arranged on shell 60,60 ' inside, the extension duct portion 261 of its outgassing nonreturn valve 26 with shown in air introducing port on the water container be communicated with.When shell 60 ' when making one with water container 3, this air introducing port can directly extend to shell 60 ' internal face, reduce windage to shorten gas circuit, be convenient to simultaneously and being connected of the extension 261 of outgassing nonreturn valve 26.Small-sized accumulator jar 1 also be installed in shell 60,60 ' inside, and can shell 60 ' on the appropriate location be provided with one the charging socket 12, the electrical connection of this charging socket 12 also schematically is illustrated among Fig. 2.
Preferred embodiment assembly structure of the present utility model, have compact overall structure, in light weight, be easy to carry, the positive pressure air that produces from air compression electromagnetic pump is to the gas outlet of air filter, gas circuit is short, system wind resistance is little, and the electric energy of accumulator jar is fully used.
The utility model has below only been described in conjunction with specific embodiments for illustrative purposes, but these descriptions are not determinate, those skilled in the art makes various improvement and modification easily within appended claim institute restricted portion, for example can add in the water increases the additive etc. that dust removal ability and neutralization have deleterious acidic gas.The utility model should be limited by appended claim and equivalent thereof.
Claims (10)
1, a kind of portable air filter ventilator, comprise a small-sized accumulator jar, a pressurized air source, an air filter, an air delivery hose and a demifacet type mouth mask, this pressurized air source is driven by this small-sized accumulator jar power supply, the positive pressure air of its generation is by this air filter filtering dust, send into this demifacet type mouth mask through this air delivery hose, it is characterized in that, described air filter comprises a container that is filled with water and is located at an air introducing port and an air outlet on this container, connect a conduit on the gas outlet of described pressurized air source, this conduit is communicated with above-mentioned air introducing port, and air is introduced below the water surface, described air outlet connects an end of described air delivery hose, and the other end of this flexible pipe is communicated with described demifacet type mouth mask.
2, respirator according to claim 1 is characterized in that, is positioned at water surface suitable position following and that air imports more than the position in the described water container and is provided with a bubble breaking net.
3, respirator according to claim 2 is characterized in that, the bottom of described water container also is provided with a device that is used for effluent sewerage.
4, respirator according to claim 3 is characterized in that, has a device that is used for observing water surface elevation on the described water container.
5, according to claim 1 or 4 described respirators, it is characterized in that, described pressurized air source has air compression electromagnetic pump and a control circuit, described air compression electromagnetic pump has the film lobe that circular haply and its middle part is provided with a permanent magnet, two pump case that are separately positioned on these film lobe both sides and are embedded with electromagnet, a plurality of breather check valves that are provided with on this pump case and an outgassing nonreturn valve and be formed on this film lobe and these two pump case between airtight film lobe oscillation space, described control circuit is that the alternating current of frequency adjustable is to drive this air compression electromagnetic pump with the DC current inversion of small-sized accumulator jar.
6, respirator according to claim 5 is characterized in that, described air compression electromagnetic pump is worked under resonant condition.
7, respirator according to claim 6, it is characterized in that, this respirator also comprises two shells that link into an integrated entity, described small-sized accumulator jar, control circuit board and air compression electromagnetic pump all are arranged on the inside of this shell, position corresponding to the breather check valve of described air compression electromagnetic pump on shell is provided with inlet channel, the extension duct portion of the outgassing nonreturn valve of described air compression electromagnetic pump is communicated with the air introducing port on the described water container, and described water container is fixed on the outer surface of shell.
8, respirator according to claim 7 is characterized in that, a described water container and a described shell body are made into one.
9, respirator according to claim 7 is characterized in that, the control circuit and the buzzer that gas sensor also are housed on an outer surface of described shell and are electrically connected with it.
10, respirator according to claim 9 is characterized in that, also is provided with the starting switch of air pressure pump on the surface of described shell, the charging socket of the starting switch of gas sensor and small-sized accumulator jar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96214558 CN2250781Y (en) | 1996-06-03 | 1996-06-03 | Portable air filtering respirator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96214558 CN2250781Y (en) | 1996-06-03 | 1996-06-03 | Portable air filtering respirator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2250781Y true CN2250781Y (en) | 1997-04-02 |
Family
ID=33896631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96214558 Expired - Fee Related CN2250781Y (en) | 1996-06-03 | 1996-06-03 | Portable air filtering respirator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2250781Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103933683A (en) * | 2014-04-17 | 2014-07-23 | 三峡大学 | Electric portable dust removing device |
| CN103933682A (en) * | 2014-04-17 | 2014-07-23 | 三峡大学 | Portable dust removing device |
| CN107106880A (en) * | 2014-12-19 | 2017-08-29 | 皇家飞利浦有限公司 | Wearable air cleaning facility |
| CN108278214A (en) * | 2018-01-30 | 2018-07-13 | 青岛大学 | For cooler of drying in the waist-mounted type clothing of high-temperature operation |
| CN112675447A (en) * | 2020-12-30 | 2021-04-20 | 东台市威尔安全装备有限公司 | Air pump type long tube respirator |
-
1996
- 1996-06-03 CN CN 96214558 patent/CN2250781Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103933683A (en) * | 2014-04-17 | 2014-07-23 | 三峡大学 | Electric portable dust removing device |
| CN103933682A (en) * | 2014-04-17 | 2014-07-23 | 三峡大学 | Portable dust removing device |
| CN103933683B (en) * | 2014-04-17 | 2016-06-15 | 三峡大学 | Electronic portable cleaning apparatus |
| CN103933682B (en) * | 2014-04-17 | 2016-07-06 | 三峡大学 | Portable dust device |
| CN107106880A (en) * | 2014-12-19 | 2017-08-29 | 皇家飞利浦有限公司 | Wearable air cleaning facility |
| CN108278214A (en) * | 2018-01-30 | 2018-07-13 | 青岛大学 | For cooler of drying in the waist-mounted type clothing of high-temperature operation |
| CN112675447A (en) * | 2020-12-30 | 2021-04-20 | 东台市威尔安全装备有限公司 | Air pump type long tube respirator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |