CN206860515U - A kind of centrifugal blower, mouth mask and mask - Google Patents
A kind of centrifugal blower, mouth mask and mask Download PDFInfo
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- CN206860515U CN206860515U CN201720808308.8U CN201720808308U CN206860515U CN 206860515 U CN206860515 U CN 206860515U CN 201720808308 U CN201720808308 U CN 201720808308U CN 206860515 U CN206860515 U CN 206860515U
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- centrifugal blower
- wheel disc
- blade
- mask
- discharge pipe
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Abstract
The utility model is a kind of centrifugal blower, mouth mask and mask, and centrifugal blower includes：Including impeller and discharge pipe, the impeller includes wheel disc and around the equally distributed multiple blade of wheel disc central shaft, the blade and the wheel disc are integrally formed, the edge of the wheel disc is stretched out in the end of the blade, the end of the blade surrounds the wheel disc, and the end of the blade is located in the discharge pipe；The inside of the discharge pipe is provided with bearing block, and the bearing block is provided with power transmission shaft, and the impeller is fixedly connected with the power transmission shaft；Not only noise is small for this centrifugal blower, axial blast is big, moreover, volume very little, exhausting effect is very good, meanwhile, it is ventilative very good to be provided with the mouth mask or mask of this centrifugal blower, moreover, will not produce noise it is big produce it is irritated at heart.
Description
Technical field
Centrifugal blower, mouth mask and mask manufacturing field are the utility model is related to, is especially applied on mouth mask and mask
A kind of centrifugal blower.
Background technology
China State of Air pollution is extremely serious.It is mainly shown as pernicious gas and coal-smoke pollution.Urban atmosphere
TSP concentration is generally exceeded in environment, and sulfur dioxide pollution is discharged in higher level pollutant of vehicle exhaust always
The total amount nitrogen oxides pollution that increases sharply is in exacerbation trend.Harm of the atmosphere pollution to human body is many, main performance
Breathing problem and physiological function obstacle, moreover, when in air pollutant it is dense when, can cause in acute pollution
Poison, or deteriorate symptom, or even the life of thousands of people was seized in several days.In fact, even if pollutant concentration is not high in air, but
Human body breathes this air polluted year in year out, can also cause chronic bronchitis, bronchial astehma, pulmonary emphysema and lung cancer
Etc. disease.
Constantly strengthen with the health perception of people, going out wears masks or mask has become a kind of custom.In the market
Mouth mask or mask be mostly common filter face mask or mask, or mouth mask or mask with blower fan, the mouth mask with blower fan
Or mask because it is ventilative good and liked by market, still, the existing blower fan applied on mouth mask or mask exists following
Problem：1. noise is big, because blower fan and mouth mask or mask are had on by user together, by solid-borne sound transmission, noise is easy to greatly
User is allowed to produce irritated mood.2. air quantity is small, existing fan delivery very little, although mouth mask or face compared to no blower fan
Cover gas permeability is a little better, still, overall air quantity or smaller.3. volume is excessive, because most blower fan is all to apply
In other field, moreover, the volume of blower fan is typically bigger, if blower fan size reduction is applied on mouth mask or mask,
Difficulty is very big.Therefore, it is a current problem of industry for the fan design set up on mouth mask or mask, is badly in need of solving.
Utility model content
In order to solve the above problems, the purpose of this utility model is to provide a kind of centrifugal blower, mouth mask and mask, this centrifugation
Not only noise is small for blower fan, axial blast is big, moreover, volume very little, exhausting effect is very good.The mouth mask of this centrifugal blower is installed
Or mask is ventilative very good, moreover, will not produce, noise is big to produce agitation at heart.
The technical solution of the utility model is as follows：
A kind of centrifugal blower, including impeller and discharge pipe, the impeller include wheel disc and uniformly divided around wheel disc central shaft
Multiple blades of cloth, the blade and the wheel disc are integrally formed, and the edge of the wheel disc is stretched out in the end of the blade, described
The end of blade surrounds the wheel disc, and the end of the blade is located in the discharge pipe；The inside of the discharge pipe is provided with
Bearing block, the bearing block are provided with power transmission shaft, and the impeller is fixedly connected with the power transmission shaft.
Preferential, the length that the wheel disc is stretched out in the end of the blade is 0-20mm, and the end of the blade and institute
The inwall for stating discharge pipe be arranged in parallel.
Preferential, the discharge pipe is provided with the fan cover for being used for covering the impeller, the fan cover and the air-out
Pipe is seamlessly connected, and the fan cover is provided with air inlet.
Preferential, the wheel disc is truncated conical shape, and the angle of the wheel disc outward flange and the wheel disc central axis is
30°-75°。
Preferential, the angle of the blade and the wheel disc central axis is 30 ° -75 °.
Preferential, the impeller and the fan cover are all truncated conical shape, and the impeller and the fan cover match.
Preferential, the blade is curvilinear or linear.
The utility model provides a kind of mouth mask, including fixture and cover body, and fixture is used to cover body be bundled in use
The head of person, cover body are used for the mouth and nose for covering user, the centrifugal blower described in above-mentioned technical proposal are provided with cover body.
The utility model additionally provides a kind of mask, including fixture and mask body, and fixture is used for mask body
The head of user is fixed on, mask body is used for the mouth and nose for covering user or whole face, is provided with mask body
Centrifugal blower described in above-mentioned technical proposal.
Using having the beneficial effect that for above technical scheme：
1. comparing existing blower fan, this centrifugal blower uses centrifugal form, and negative pressure is big, air quantity is sufficient, meanwhile, pass through air-out
The conversion of pipe, accomplish distinguished and admirable outgoing direction as axial direction, and it is small into pitot loss behind axial direction.
2. a centrifugal blower noise is very small, this centrifugal fan blade is using the shape of curve or straight line, wheel disc using circle
The shape of platform, and the end that blade stretches out surrounds wheel disc, it is such not only to ensure that impeller goes out in global shape and structure design
The direction of wind, furthermore, it is possible to avoid the problem of pitot loss and noise increase caused by during later stage discharge pipe conversion wind direction.
3. a centrifugal blower volume is very small, weight is also very light, meanwhile, do not interfered with above mouth mask attractive in appearance.
4. a centrifugal blower wheel disc is truncated conical shape, and the angle of wheel disc outward flange and wheel disc central axis is 30 ° -75 °,
The angle of blade and wheel disc central axis is also 30 ° -75 °, and the design of truncated conical shape and 30 ° of -75 ° of angles is by test of many times
Obtain, only under this angle and shape, centrifugal blower get rid of wind effect be only it is optimal.
5. compare existing mouth mask or mask, being provided with the mask of this centrifugal blower, not only noise is small, moreover, gas permeability is very
Good, because if mouth mask or mask cover the mouth and nose of user or whole head, wearer can produce breathing in use
It is not smooth, or irritated psychology etc. is produced because noise is big, still, using being provided with then will not for this centrifugal blower.
Brief description of the drawings
Fig. 1 is the stereogram of the utility model centrifugal blower.
Fig. 2 is the explosive view of the utility model centrifugal blower.
Fig. 3 is the cut away view of the utility model centrifugal blower.
Fig. 4 is the impeller of the utility model centrifugal blower and the cut away view of fan cover.
Fig. 5 is the stereogram of the utility model centrifugal blower fan blade wheel.
Fig. 6 is the side view of the utility model centrifugal blower fan blade wheel.
Fig. 7 is the top view of the utility model centrifugal blower fan blade wheel.
Fig. 8 is the upward view of the utility model centrifugal blower fan blade wheel.
Fig. 9 is the profile of the utility model centrifugal blower fan blade wheel.
Figure 10 is the profile of the fan cover of the utility model centrifugal blower.
The title or process name of the corresponding component of digital or alphabetical representative in figure：1. centrifugal blower, 2. impellers, 21.
Wheel disc, 22. blades, 3. fan covers, 31. air inlets, 4. discharge pipes, 5. bearing blocks, 51. power transmission shafts.
Embodiment
For the ease of it will be appreciated by those skilled in the art that entering to advance to the utility model below in conjunction with accompanying drawing and embodiment
One step is described in detail.
Embodiment one
As shown in drawings, centrifugal blower 1 includes impeller 2, fan cover 3 and discharge pipe 4, and impeller and fan cover are all truncated cone-shaped
Shape, and impeller and fan cover match, the outward flange of middle fan cover and the central axis angle of fan cover are 0 ° -90 °, such as Figure 10
γ angles shown in, certainly, fan cover can also be arranged to the housing of plane, simply for the housing of relative plane, shape phase
The exhausting effect matched somebody with somebody can be better, and the present embodiment the present embodiment γ angles take 43 °.Air inlet 31, air intake are provided with fan cover
The position of mouth can arbitrarily be set in fan cover, and still, the air inlet of the present embodiment one is arranged on the center of fan cover,
The shape of air inlet is not specific, can be circle, triangle, square, ellipse etc., as long as air inlet guarantee can be with air intake
, what air inlet was set in the present embodiment one is shaped as circle；Fan cover and discharge pipe are seamlessly connected, seamless connection be in order to
Ensure that wind does not dissipate outside after being inhaled into from air inlet；The inside of discharge pipe is provided with bearing block 5, and bearing block will not stop to be inhaled from air inlet
The wind entered, bearing block play a supportive role herein；Power transmission shaft 51 is provided with bearing block, impeller is fixedly connected with power transmission shaft；Impeller
It is suspended in inside the fan cover, and the gap extreme care between impeller and fan cover, because the gap of impeller and fan cover
It is smaller, during centrifugal blower exhausting.
Impeller includes wheel disc 21 and multiple blades 22 around the distribution of wheel disc central shaft, and blade is curvilinear or linear,
Blade and wheel disc are integrally formed；Wheel disc is truncated conical shape, and the angle of wheel disc outward flange and wheel disc central axis is 30 ° -75 °,
As schemed shown in α angles, the angle of the wheel disc outward flange of the present embodiment one and wheel disc central axis is 43 °；Blade and wheel disc central axis
Angle be also 30 ° -75 °, as schemed shown in β angles, the angle of the wheel disc outward flange of the present embodiment one and wheel disc central axis is 43 °；
The edge of wheel disc is stretched out in the end of blade, and the end of blade surrounds wheel disc, and the length of the end stretching wheel disc of blade is 0-20mm,
The length that wheel disc is stretched out in the end of blade in the present embodiment one is 5mm, because the end that blade stretches out surrounds wheel disc, and fan cover
It is seamlessly connected with discharge pipe, so, after wind enters, what scope that blade throws away the wind direction after wind was to determine, moreover, will not damage
Lose, meanwhile, because the wind that centrifugation is thrown away produces noise when wind can also be avoided to be thrown out of.
The centrifugal blower exhausting principle explanation of embodiment one：Wind enters from the air inlet of fan cover, by the rotation of blade, wind
Be thrown out of discharge pipe, moreover, because being provided with fan cover, wind during being thrown away by the rotation of blade to discharge pipe,
The few losses of total amount of wind, the effect for reducing wind loss is not only acted as, also act as the effect of protection impeller, meanwhile, blower fan
The gap of lid and impeller blade is smaller, and blast is bigger, i.e., unit air volume is bigger, and this is appreciated that from the angle of physics.No
Only in this way, the discharge pipe of centrifugal blower changes the direction of wind because impeller rotation cause wind from enter away be centrifugation,
Understand that wind is thrown toward surrounding by the principle centrifuged, but because the stop of fan cover and discharge pipe, wind have been changed direction after throwing away,
As shown in Figure 3 and Figure 4, the angle of wind and discharge pipe is θ, and the present embodiment one is 53 °.
Embodiment two
Centrifugal blower in the present embodiment two does not increase fan cover, but the end of blade is slightly in inside discharge pipe, and
The end of blade and the inwall of discharge pipe be arranged in parallel, and miscellaneous part and connected mode are identical with embodiment one.Because this from
The edge of wheel disc is stretched out in the end of heart fan blade, and the end that blade stretches out surrounds wheel disc, and impeller is slightly in inside discharge pipe,
Such design can equally ensure that wind flows out from discharge pipe, can also reach other effects.
The centrifugal blower exhausting principle explanation of embodiment two：Wind directly rotates suction discharge pipe by blade, because the end of blade
Portion is slightly in the inside of discharge pipe, and the end of blade and the inwall of discharge pipe be arranged in parallel, and such design ensures that wind exists
During being thrown to discharge pipe, because the stop of air-out inside pipe wall, and direction change occurs, still, change the wind behind direction
It will not be reduced because of the effect of centrifugation, also ensure that the air quantity for actually entering discharge pipe keeps constant.
Centrifugal blower provided by the utility model, compared to existing blower fan, this centrifugal blower uses centrifugal form, negative pressure
Greatly, air quantity is sufficient, meanwhile, by the conversion of discharge pipe, accomplish distinguished and admirable outgoing direction as axially, and into pitot loss behind axial direction
It is small.
Embodiment three
The present embodiment three provides a kind of mouth mask, including fixture and cover body, and fixture is used to cover body be bundled in user
Head, can be specifically rope or bandage etc., the shape of cover body meets ergonomics, because cover body and the mouth and nose of user
Matching, for covering the mouth and nose of user.Cover body can be that the filtering cloth either filter effect in general mouth mask compares
Good filtering cloth, is provided with the centrifugal blower described in embodiment one on cover body, and centrifugal blower is referring specifically to embodiment one, herein
Do not repeat.After mouth mask is provided with the centrifugal blower described in embodiment one, not only gas permeability is fine, and breathing will not be produced by being worn on
It is not smooth, moreover, because the volume of centrifugal blower is very small, do not interfere with U.S. of outward appearance yet.
Example IV
Centrifugal blower described in embodiment two is installed, other and embodiment three-phase on the mouth mask that the present embodiment four provides
Together, referring specifically to embodiment two and embodiment three, will not be described here.Moreover, effect and the effect of embodiment three that mouth mask reaches
Fruit is seemingly.
Embodiment five
The present embodiment five provides a kind of mask, including fixture and mask body, and fixture is used to mask body fix
Can be specifically rope or bandage etc. on the head of user, the shape of mask body meets ergonomics, because mask sheet
Body is used for the mouth and nose for covering user or whole face, so to match with the mouth and nose or face of user.Mask sheet
Body, it can be specifically silica gel or plastics, the centrifugal blower described in embodiment one is installed in mask body, specific ginseng
Embodiment one is seen, will not be described here.After mask is provided with the centrifugal blower described in embodiment one, not only noise is small, moreover, thoroughly
Gas is fine, because if mask body covers the whole head of user, wearer will not produce breathing in use
It is not smooth, or because noise is big, wears produce irritated psychology etc. for a long time.This mask can be applied in many fields, such as：Testing
Breathing mask of poisonous substance exclusion etc. is made in room.
Embodiment six
The mask that the present embodiment six provides, is provided with the centrifugal blower described in embodiment two in mask body, it is other with
Embodiment five is identical, referring specifically to embodiment two and embodiment five, will not be described here.Moreover, effect and reality that mask reaches
The effect for applying example five is similar.
Above is with reference to the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Claims (9)
1. a kind of centrifugal blower, it is characterised in that including impeller and discharge pipe, the impeller includes wheel disc and around wheel disk center
The equally distributed multiple blades of axle, the blade and the wheel disc are integrally formed, and the wheel disc is stretched out in the end of the blade
Edge, the end of the blade surrounds the wheel disc, and the end of the blade is located in the discharge pipe；The discharge pipe
Inside is provided with bearing block, and the bearing block is provided with power transmission shaft, and the impeller is fixedly connected with the power transmission shaft.
2. centrifugal blower according to claim 1, it is characterised in that the length of the wheel disc is stretched out in the end of the blade
For 0-20mm, and the inwall of the end of the blade and the discharge pipe be arranged in parallel.
3. centrifugal blower according to claim 1, it is characterised in that the discharge pipe, which is provided with, to be used to cover the impeller
Fan cover, the fan cover and the discharge pipe are seamlessly connected, and the fan cover is provided with air inlet.
4. centrifugal blower according to claim 1, it is characterised in that the wheel disc is truncated conical shape, and outside the wheel disc
The angle of edge and the wheel disc central axis is 30 ° -75 °.
5. centrifugal blower according to claim 1, it is characterised in that the angle of the blade and the wheel disc central axis
For 30 ° -75 °.
6. centrifugal blower according to claim 3, it is characterised in that the impeller and the fan cover are all truncated cone-shaped
Shape, and the impeller and the fan cover match.
7. according to the centrifugal blower described in claim any one of 1-6, it is characterised in that the blade is curvilinear or straight line
Shape.
8. a kind of mouth mask, it is characterised in that including the centrifugal blower described in claim any one of 1-7.
9. a kind of mask, it is characterised in that including the centrifugal blower described in claim any one of 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720808308.8U CN206860515U (en) | 2017-07-06 | 2017-07-06 | A kind of centrifugal blower, mouth mask and mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720808308.8U CN206860515U (en) | 2017-07-06 | 2017-07-06 | A kind of centrifugal blower, mouth mask and mask |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206860515U true CN206860515U (en) | 2018-01-09 |
Family
ID=60830076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720808308.8U Expired - Fee Related CN206860515U (en) | 2017-07-06 | 2017-07-06 | A kind of centrifugal blower, mouth mask and mask |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206860515U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022061317A1 (en) * | 2020-09-21 | 2022-03-24 | Chiu David T W | Facial guard system |
-
2017
- 2017-07-06 CN CN201720808308.8U patent/CN206860515U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022061317A1 (en) * | 2020-09-21 | 2022-03-24 | Chiu David T W | Facial guard system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180109 Termination date: 20180706 |