CN207307005U - Anti-dust mask device based on breathing gas under positive pressure - Google Patents
Anti-dust mask device based on breathing gas under positive pressure Download PDFInfo
- Publication number
- CN207307005U CN207307005U CN201720961924.7U CN201720961924U CN207307005U CN 207307005 U CN207307005 U CN 207307005U CN 201720961924 U CN201720961924 U CN 201720961924U CN 207307005 U CN207307005 U CN 207307005U
- Authority
- CN
- China
- Prior art keywords
- wind
- positive pressure
- collecting cover
- mask
- connection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
A kind of anti-dust mask device based on breathing gas under positive pressure, include and be arranged in outer air feed air duct and for collecting the distinguished and admirable mouthful device that rises of positive pressure, being arranged to connect with mouthful device that rises and being used for the mask component freely breathed distinguished and admirable to positive pressure, it is distinguished and admirable that positive pressure is picked up by mouthful device that rises, pass through mask component, realize that operating personnel are distinguished and admirable to positive pressure freely to breathe, prevent under suction function, dust is entered in mask component, it is no longer dust-proof by wearing the progress of 3M anti-dust masks, therefore improve protection effect and the health of operating personnel.
Description
First, technical field
A kind of anti-dust mask device is the utility model is related to, it is especially a kind of to adapt to for mine down-hole operation side
Anti-dust mask device based on breathing gas under positive pressure.
2nd, background technology
In mine down-hole operation side, special belt feeder driver, scraper-trough conveyer driver, driver of roadheader and bolt-spary supports lane
The work position of the whitewashing hand in road is the work position under high dust concentration, in order to ensure the health of operating personnel, it is necessary to
Anti-dust mask device is worn, therefore anti-dust mask device is a kind of important mine protective device, is filled in existing anti-dust mask
Also all it is mainly dust-proof by wearing the progress of 3M anti-dust masks in putting, but since operating personnel are in air-breathing, place in anti-dust mask
In negative pressure state, since anti-dust mask wears incorrect or anti-dust mask sealing strip, to contact with facial skin sealing performance not high,
Cause in operating personnel's breathing process, dust is inhaled into human body along the periphery gap of anti-dust mask, leverages dust-proof
The filter effect of mask, does not have good protective action, have impact on the health of operating personnel.
Based on existing technical problem, technical characteristic and technique effect, the application technical solution of the utility model is made.
3rd, the content of the invention
The object of the utility model is a kind of anti-dust mask device based on breathing gas under positive pressure.
In order to overcome above-mentioned technical disadvantages, the purpose of this utility model is to provide a kind of based on the dust-proof of breathing gas under positive pressure
Mask devices, therefore improve protection effect and the health of operating personnel.
To reach above-mentioned purpose, the technical scheme adopted by the utility model is that：Include and be arranged in outer air feed air duct simultaneously
And freely exhaled for collecting the distinguished and admirable mouthful device that rises of positive pressure, being arranged to connect with mouthful device that rises and being used for progress distinguished and admirable to positive pressure
The mask component of suction.
Due to devising rise mouthful device and mask component, by rising, mouthful device pickup positive pressure is distinguished and admirable, real by mask component
Now operating personnel are distinguished and admirable to positive pressure freely breathes, and prevents under suction function, dust is entered in mask component, no longer passes through pendant
It is dust-proof to wear the progress of 3M anti-dust masks, therefore improves protection effect and the health of operating personnel.
The utility model devises, by positive pressure it is distinguished and admirable freely breathe progress in the way of rise mouthful device and mask component
Connection.
The utility model devises, and also includes connector, shut-off valve, pressure reducing valve, filter and volume damper, the mouth that rises dress
Installing to be set to and include wind-collecting cover, shutter door and adjusting screw rod, mask component is arranged to include mask, air nozzle and bandage,
Shutter door is arranged to couple with the inner wall rotary type of outer air feed air duct and in shutter door and outer air feed air duct
Adjusting screw rod is provided between wall, mouthful end of rising that wind-collecting cover and wind-collecting cover are provided with shutter door is arranged to and outer air feed wind
The delivery air Relative distribution of cylinder, connector is arranged on outer air feed air duct and the output port of wind-collecting cover is arranged to and connector
The connection of one end port part, the other end port part of connector are arranged to the another of one end port part connection of shut-off valve and shut-off valve
End port part is arranged to couple with one end port part of pressure reducing valve, and the other end port part of pressure reducing valve is arranged to defeated with filter
Inbound port portion couples and the output terminal oral area of filter is arranged to couple with one end port part of volume damper, and air quantity is adjusted
The other end port part of valve is arranged to couple with air nozzle and air nozzle is arranged to couple with the side surface part of mask, and bandage is set
Couple for the periphery face with mask.
The utility model devises, and wind-collecting cover is arranged to V-shaped plate body and the one of plate portion of wind-collecting cover is arranged to
Couple with the inner wall of outer air feed air duct, wind-collecting cover other in which plate portion is arranged to couple with shutter door and wind-collecting cover wherein one
A plate portion is arranged to and wind-collecting cover other in which plate portion is collapsible couples, in the one of plate portion of wind-collecting cover and wind-collecting cover wherein
The port part of the pipeline coupled with connector is respectively arranged with another plate portion.
The utility model devises, shutter door be arranged to plate body and shutter door one of periphery be arranged to
The inner wall of the inner wall rotary type connection of outer air feed air duct, shutter door and outer air feed air duct is arranged to be distributed in opening and closing mode, adjusts
Screw rod is arranged to have threaded rhabodoid and adjusting screw rod is arranged to couple with the inner wall concatenation type of outer air feed air duct, adjusts
Screw rod is arranged to couple with shutter door screw-type.
The utility model devises, and connector is arranged to couple and be arranged on collection wind with the inner thread formula of outer air feed air duct
The pipeline coupled with connector on cover is arranged to the pipeline coupled with connector for being distributed and being arranged on wind-collecting cover in Y-shaped
Port part is arranged to bulbous recess body.
The utility model devises, and filter is arranged to filter cartridge type filter.
The utility model devises, and mask is arranged to be in the shape of the letter V hood-like body and bandage is arranged to weaving tape body.
The utility model devises, and air nozzle is arranged to T-shaped mouth shape body and air nozzle is separately positioned on the side of mask
Face, the pipeline coupled with mask are arranged to be distributed in Y-shaped.
The utility model devises, and wind-collecting cover is arranged to collect according to rotational angle distinguished and admirable with shutter door and adjusting screw rod
Mode is distributed and wind-collecting cover is arranged to logical according to air quantity conveying with connector, shut-off valve, pressure reducing valve, filter and volume damper
The mode in road is distributed, and mask is arranged to be distributed in the way of free breathing space is formed with air nozzle and bandage and a collection
Fan housing, a shutter door and an adjusting screw rod be arranged to composition one group of distinguished and admirable component of collection, a connector, a shut-off valve,
One pressure reducing valve, a filter and a volume damper be arranged to composition one group of air quantity transfer passage component, a mask,
One air nozzle and a bandage are arranged to one group of free respiratory component of composition.
The utility model has technical effect that：By multi-function head（High pressure wind-drive device）With air supply pipeline and dust mask
Connection.High pressure wind-drive device is by quick coupling, pressure reducing valve, filtration apparatus（Oil strain, filter impurity）, four part group of air-quantity adjusting valve
Into.In use, high pressure wind-drive device is connected by quick coupling with the pipe valve of high-pressure blast pipeline, valve is opened, opens decompression
Valve, passes through filtration apparatus（Oil strain, filter impurity, water removal）Oil in high-pressure blast, water and contaminant filter are removed, it is new after filtering
Wind is sent into positive pressure respiration anti-dust mask by air supply pipeline, and user can make positive pressure respiration by adjusting air-quantity adjusting valve
The fresh distinguished and admirable of barotropic state and adequate flow is remained inside anti-dust mask, avoid because wear it is unqualified and caused by suck
The problem of dust, meet head on booster generation pressure and pressure duct in high-pressure blast do power, fresh air is sent into dust-proof
Cover, without adding any power-equipment and gas storage equipment again；It can effectively solve the problem that belt feeder driver, scraper-trough conveyer driver, fully-mechanized digging machine department
The dust-proof problem of the little personnel of scope of activities such as machine and the whitewashing hand in bolt-spary supports tunnel, can also solve ground and fix post
Treating flour dust problem.
In the technical program, outer air feed air duct refers to the air feed air duct connected with high pressure positive blower and with booster.
In the technical program, distinguished and admirable to positive pressure freely to breathe rise mouthful device and the mask component carried out special for important technology
Sign, in the technical field of the anti-dust mask device based on breathing gas under positive pressure, has novelty, creativeness and practicality,
Term in the technical program is all that can be explained and understood with patent document in the art.
4th, illustrate
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is the schematic diagram of the utility model：
Fig. 2 is the schematic diagram of the mask 9 of the utility model.
5th, embodiment
According to guidelines for examination, to such as " having ", "comprising" and " comprising " term should used in the utility model
It is interpreted as the presence or addition for not allotting one or more of the other element or its combination.
, it is necessary to explanation in the description of the utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instruction such as " level ", " interior ", " outer " or orientation or position relationship that position relationship is general expression, merely to
Easy to describe the utility model and simplified description, rather than indicate or imply that signified device or element must be with specifically square
Position, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.In addition, term " first ",
" second ", " the 3rd " are only used for description purpose, and it is not intended that instruction or hint relative importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in the description of the utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can mechanically connect or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other
Not forming conflict can be combined with each other.
Below in conjunction with the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out it is clear,
It is fully described by, it is clear that described embodiment is only the utility model part of the embodiment, instead of all the embodiments.
Based on the embodiment in the utility model, what those of ordinary skill in the art were obtained without making creative work
Every other embodiment, shall fall within the protection scope of the present invention.
Fig. 1 is one embodiment of the utility model, illustrates the present embodiment with reference to attached drawing, includes wind-collecting cover 1, opens
Close door 2, adjusting screw rod 3, connector 4, shut-off valve 5, pressure reducing valve 6, filter 7, volume damper 8, mask 9, air nozzle 91 and tie up
Band 92,
Shutter door 2 is arranged to couple with the inner wall rotary type of outer air feed air duct and in shutter door 2 and outer air feed air duct
Adjusting screw rod 3 is provided between inner wall, be provided with shutter door 2 wind-collecting cover 1 and wind-collecting cover 1 a mouthful end of rising be arranged to outside
The delivery air Relative distribution of air feed air duct, connector 4 is arranged on outer air feed air duct and the output port of wind-collecting cover 1 is arranged to
Couple with one end port part of connector 4, the other end port part of connector 4 be arranged to one end port part connection of shut-off valve 5 and
The other end port part of shut-off valve 5 is arranged to couple with one end port part of pressure reducing valve 6, and the other end port part of pressure reducing valve 6 is set
It is set to and couples with the input terminal oral area of filter 7 and the output terminal oral area of filter 7 is arranged to one end with volume damper 8
Port part couple, the other end port part of volume damper 8 is arranged to couple with air nozzle 91 and air nozzle 91 be arranged to
The side surface part connection of mask 9, bandage 92 are arranged to couple with the periphery of mask 9 face.
In the present embodiment, wind-collecting cover 1 be arranged to V-shaped plate body and 1 one of plate portion of wind-collecting cover be arranged to
Outer air feed air duct inner wall connection, 1 other in which plate portion of wind-collecting cover be arranged to couple with shutter door 2 and wind-collecting cover 1 wherein
One plate portion is arranged to and 1 other in which plate portion of wind-collecting cover is collapsible couples, in 1 one of plate portion of wind-collecting cover and wind-collecting cover
The port part of the pipeline coupled with connector 4 is respectively arranged with 1 other in which plate portion.
By the mouth that rises of two plate portions of wind-collecting cover 1, the delivery air in outer air feed air duct is collected, is realized just
Pressure conveying is distinguished and admirable.
In the present embodiment, shutter door 2 be arranged to plate body and shutter door 2 one of periphery be arranged to outside
The inner wall of the inner wall rotary type connection of air feed air duct, shutter door 2 and outer air feed air duct is arranged to be distributed in opening and closing mode, adjusts spiral shell
Bar 3 is arranged to have threaded rhabodoid and adjusting screw rod 3 is arranged to couple with the inner wall concatenation type of outer air feed air duct, adjusts
Screw rod 3 is arranged to couple with 2 screw-type of shutter door.
By the rotation of adjusting screw rod 3, the inner wall of shutter door 2 and outer air feed air duct is opened and closed the adjusting of angle, from
And the size at mouthful end of rising of wind-collecting cover 1 is driven, realize that adjusting wind-collecting cover 1 collects air volume.
In the present embodiment, connector 4 is arranged to couple and be arranged on wind-collecting cover 1 with the inner thread formula of outer air feed air duct
On the pipeline coupled with connector 4 be arranged to be distributed in Y-shaped and be arranged on the pipeline coupled with connector 4 on wind-collecting cover 1
Port part be arranged to bulbous recess body.
By connector 4, the air quantity output of wind-collecting cover 1 is realized, by being arranged on coupling with connector 4 on wind-collecting cover 1
The port part of pipeline, realizes and collects positive pressure air quantity according to tangential direction, prevents from producing impact force to wind-collecting cover 1.
In the present embodiment, filter 7 is arranged to filter cartridge type filter.
Pass through filter 7, the convenient installation with pressure reducing valve 6 and the connecting pipe of volume damper 8.
In the present embodiment, mask 9 is arranged to be in the shape of the letter V hood-like body and bandage 92 is arranged to weaving tape body.
By mask 9, sealing cavity body is produced in the oral area and nose of operating personnel, by bandage 92, mask 9 is fixed
In the face of operating personnel.
In the present embodiment, air nozzle 91 is arranged to T-shaped mouth shape body and air nozzle 91 is separately positioned on the side of mask 9
Face, the pipeline coupled with mask 9 are arranged to be distributed in Y-shaped.
It is distinguished and admirable in the nostril portion of operating personnel and oral area formation two by air nozzle 91, provide positive pressure for operating personnel
Air-flow.
In the present embodiment, wind-collecting cover 1 is arranged to collect according to rotational angle distinguished and admirable with shutter door 2 and adjusting screw rod 3
Mode is distributed and wind-collecting cover 1 is arranged to according to air quantity with connector 4, shut-off valve 5, pressure reducing valve 6, filter 7 and volume damper 8
The mode of transfer passage is distributed, and mask 9 is arranged to divide in the way of free breathing space is formed with air nozzle 91 and bandage 92
Cloth and 1, shutter door 2 of a wind-collecting cover and an adjusting screw rod 3 are arranged to one group of distinguished and admirable component of collection of composition, and one connects
It is defeated that first 4, filters 7 of pressure reducing valve 6, one of shut-off valve 5, one and a volume damper 8 are arranged to one group of air quantity of composition
Passage component is sent, 9, air nozzles 91 of a mask and a bandage 92 are arranged to one group of free respiratory component of composition.
Mask 9 is fixed on the oral area and nose of operating personnel by bandage 92, by adjusting screw rod 3 shutter door 2
With the inner wall spreading angle of outer air feed air duct, drive wind-collecting cover 1 to open the angle that rises, cut the conveying of outer air feed air duct is distinguished and admirable
Taking, positive pressure is distinguished and admirable to be entered in the pipeline coupled with connector 4, opens shut-off valve 5, and positive pressure wind circulation is crossed pressure reducing valve 6 and is depressured,
Dedusting and taste removal are carried out to positive pressure air quantity by filter 7, big minor adjustment is carried out to positive pressure air quantity by volume damper 8, by spraying
Gas nozzle 91 is transported to the oral area and nose of operating personnel, realizes that operating personnel actively freely breathe.
The utility model has the characteristics that lower：
1st, due to devising rise mouthful device and mask component, it is distinguished and admirable that positive pressure is picked up by mouthful device of rising, by mask component,
Realize that operating personnel are distinguished and admirable to positive pressure freely to breathe, prevent under suction function, dust is entered in mask component, is no longer passed through
It is dust-proof to wear the progress of 3M anti-dust masks, therefore improves protection effect and the health of operating personnel.
2nd, due to devising wind-collecting cover 1, shutter door 2 and adjusting screw rod 3, by shutter door 2 and adjusting screw rod 3, improve
The reliable operation performance of wind-collecting cover 1, reduces the choke of external air feed air duct.
3rd, due to devising mask 9, air nozzle 91 and bandage 92, the wearing of operating personnel is facilitated, improves post work
Make efficiency.
4th, due to devising connector 4, shut-off valve 5, pressure reducing valve 6, filter 7 and volume damper 8, the mistake of gas circuit is realized
Filter and adjusting, improve the comfort level freely breathed of operating personnel.
5th, due to devising the technical characteristics of the utility model, in the work of the independent and mutual set of technical characteristic
With being shown by experiment, the property indices of the utility model are at least 1.7 times for existing property indices, lead to
Crossing assessment has good market value.
Also other technical characteristics coupled with to distinguished and admirable rise mouthful device and the mask component for freely breathing progress of positive pressure
All it is one of embodiment of the utility model, and each technical characteristic of embodiment described above can be combined arbitrarily,
To meet Patent Law, patent regulation and the requirement of guidelines for examination, no longer to each technical characteristic institute in above-described embodiment
The embodiment of possible combination is all described.
Therefore in the anti-dust mask engineering device technique field based on breathing gas under positive pressure, it is every include be arranged on outer air feed
In air duct and for collect the distinguished and admirable mouthful device that rises of positive pressure, be arranged to connect with mouthful device that rises and be used for it is distinguished and admirable to positive pressure into
The technology contents for the mask component that row freely breathes are all within the protection scope of the present utility model.
Claims (10)
1. a kind of anti-dust mask device based on breathing gas under positive pressure, it is characterized in that：Include and be arranged in outer air feed air duct simultaneously
And freely exhaled for collecting the distinguished and admirable mouthful device that rises of positive pressure, being arranged to connect with mouthful device that rises and being used for progress distinguished and admirable to positive pressure
The mask component of suction.
2. the anti-dust mask device according to claim 1 based on breathing gas under positive pressure, it is characterized in that：According to positive pressure wind
Stream freely breathes the mode carried out and mouthful device that rises is coupled with mask component.
3. the anti-dust mask device according to claim 1 based on breathing gas under positive pressure, it is characterized in that：Also include connector
（4）, shut-off valve（5）, pressure reducing valve（6）, filter（7）And volume damper（8）, mouthful device that rises is arranged to include wind-collecting cover
（1）, shutter door（2）And adjusting screw rod（3）, mask component is arranged to include mask（9）, air nozzle（91）And bandage（92）,
Shutter door（2）It is arranged to couple and in shutter door with the inner wall rotary type of outer air feed air duct（2）With outer air feed air duct
Adjusting screw rod is provided between inner wall（3）, in shutter door（2）On be provided with wind-collecting cover（1）And wind-collecting cover（1）A mouthful end of rising set
It is set to the delivery air Relative distribution with outer air feed air duct, connector（4）It is arranged on outer air feed air duct and wind-collecting cover（1）It is defeated
Exit port is arranged to and connector（4）The connection of one end port part, connector（4）Other end port part be arranged to shut-off valve（5）'s
One end port part connection and shut-off valve（5）Other end port part be arranged to and pressure reducing valve（6）The connection of one end port part, subtract
Pressure valve（6）Other end port part be arranged to and filter（7）Input terminal oral area connection and filter（7）Output port
Portion is arranged to and volume damper（8）The connection of one end port part, volume damper（8）Other end port part be arranged to and spray
Gas nozzle（91）Connection and air nozzle（91）It is arranged to and mask（9）Side surface part connection, bandage（92）It is arranged to and mask（9）
Periphery face connection.
4. the anti-dust mask device according to claim 3 based on breathing gas under positive pressure, it is characterized in that：Wind-collecting cover（1）If
It is set to V-shaped plate body and wind-collecting cover（1）One of plate portion is arranged to couple with the inner wall of outer air feed air duct, wind-collecting cover
（1）Other in which plate portion is arranged to and shutter door（2）Connection and wind-collecting cover（1）One of plate portion is arranged to and wind-collecting cover
（1）The collapsible connection of other in which plate portion, in wind-collecting cover（1）One of plate portion and wind-collecting cover（1）Other in which plate portion
On be respectively arranged with and connector（4）The port part of the pipeline of connection.
5. the anti-dust mask device according to claim 3 based on breathing gas under positive pressure, it is characterized in that：Shutter door（2）If
It is set to plate body and shutter door（2）One of periphery be arranged to couple with the inner wall rotary type of outer air feed air duct, open
Close door（2）It is arranged to be distributed in opening and closing mode with the inner wall of outer air feed air duct, adjusting screw rod（3）It is arranged to have threaded rod-shaped
Body and adjusting screw rod（3）It is arranged to couple with the inner wall concatenation type of outer air feed air duct, adjusting screw rod（3）It is arranged to and shutter door
（2）Screw-type couples.
6. the anti-dust mask device according to claim 3 based on breathing gas under positive pressure, it is characterized in that：Connector（4）Set
To couple with the inner thread formula of outer air feed air duct and being arranged on wind-collecting cover（1）On and connector（4）The pipeline of connection is set
To be distributed in Y-shaped and being arranged on wind-collecting cover（1）On and connector（4）The port part of the pipeline of connection is arranged to bulbous recess
Body.
7. the anti-dust mask device according to claim 3 based on breathing gas under positive pressure, it is characterized in that：Filter（7）If
It is set to filter cartridge type filter.
8. the anti-dust mask device according to claim 3 based on breathing gas under positive pressure, it is characterized in that：Mask（9）Set
For hood-like body and the bandage of being in the shape of the letter V（92）It is arranged to weaving tape body.
9. the anti-dust mask device according to claim 3 based on breathing gas under positive pressure, it is characterized in that：Air nozzle（91）If
It is set to T-shaped mouth shape body and air nozzle（91）It is separately positioned on mask（9）Side surface part, with mask（9）The pipeline of connection is set
It is set to and is distributed in Y-shaped.
10. the anti-dust mask device according to claim 3 based on breathing gas under positive pressure, it is characterized in that：Wind-collecting cover（1）With
Shutter door（2）And adjusting screw rod（3）It is arranged to collect distinguished and admirable mode according to rotational angle and is distributed and wind-collecting cover（1）With connector
（4）, shut-off valve（5）, pressure reducing valve（6）, filter（7）And volume damper（8）It is arranged in the way of air quantity transfer passage
Distribution, mask（9）With air nozzle（91）And bandage（92）It is arranged to be distributed in the way of free breathing space is formed and one
A wind-collecting cover（1）, a shutter door（2）With an adjusting screw rod（3）It is arranged to one group of distinguished and admirable component of collection of composition, a connector
（4）, a shut-off valve（5）, a pressure reducing valve（6）, a filter（7）With a volume damper（8）It is arranged to composition one
Group air quantity transfer passage component, a mask（9）, an air nozzle（91）With a bandage（92）It is free to be arranged to one group of composition
Respiratory component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720961924.7U CN207307005U (en) | 2017-08-03 | 2017-08-03 | Anti-dust mask device based on breathing gas under positive pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720961924.7U CN207307005U (en) | 2017-08-03 | 2017-08-03 | Anti-dust mask device based on breathing gas under positive pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207307005U true CN207307005U (en) | 2018-05-04 |
Family
ID=62434027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720961924.7U Expired - Fee Related CN207307005U (en) | 2017-08-03 | 2017-08-03 | Anti-dust mask device based on breathing gas under positive pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207307005U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111659047A (en) * | 2020-04-20 | 2020-09-15 | 淮北矿业股份有限公司 | Air supply device of dust mask for driver of roadheader |
-
2017
- 2017-08-03 CN CN201720961924.7U patent/CN207307005U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111659047A (en) * | 2020-04-20 | 2020-09-15 | 淮北矿业股份有限公司 | Air supply device of dust mask for driver of roadheader |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105797290B (en) | Neck-winding type air purifier | |
| CN204745408U (en) | Can form intelligence wearing gauze mask of airtight respiratory cavity with face | |
| CN109011247A (en) | A kind of anti-suffocation crash helmet | |
| CN103394174A (en) | Portable breathing air filter | |
| CN207307005U (en) | Anti-dust mask device based on breathing gas under positive pressure | |
| CN106288017A (en) | Underground work feeder | |
| CN208465003U (en) | A kind of mining powered air-purifying formula anti-dust mask | |
| CN109395272A (en) | A kind of mine dust-proof mask | |
| CN204158903U (en) | Intrinsic safety type Sucking-assisting type Multifunctional gauze mask | |
| CN106924898A (en) | A kind of wearable air cleaning system for being integrated in clothes | |
| CN205586387U (en) | Around neck formula air purifier | |
| CN205586379U (en) | Wearable air purifier | |
| CN206094341U (en) | Borehole operation air feeder | |
| CN206549016U (en) | A kind of protective device for respiration | |
| CN205695853U (en) | Haze malleation mask | |
| CN207722255U (en) | Air purification filtration equipment | |
| CN204838108U (en) | Open gauze mask of one -way gas transmission | |
| CN203400428U (en) | Portable breathing air filter | |
| CN204106887U (en) | A kind of passive mouth mask of supplying gas | |
| CN2873254Y (en) | Anti-breath mask | |
| CN206837260U (en) | A kind of mask | |
| CN1569281A (en) | Positive pressure respiration protector | |
| CN206120979U (en) | Safety helmet | |
| CN208243934U (en) | A kind of dual anti-dust mask of the mining power that one or more people use air-supply | |
| CN114191733B (en) | Open air supply dustproof respirator based on effective suction area of human body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180504 Termination date: 20180803 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |