CN105922794A - Dust absorption blackboard - Google Patents
Dust absorption blackboard Download PDFInfo
- Publication number
- CN105922794A CN105922794A CN201610352518.0A CN201610352518A CN105922794A CN 105922794 A CN105922794 A CN 105922794A CN 201610352518 A CN201610352518 A CN 201610352518A CN 105922794 A CN105922794 A CN 105922794A
- Authority
- CN
- China
- Prior art keywords
- blackboard
- dust
- micropore
- air
- panel
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
- B43L1/04—Blackboards
- B43L1/10—Writing surfaces thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/15—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means
- F24F8/158—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means using active carbon
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/192—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by electrical means, e.g. by applying electrostatic fields or high voltages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
- F24F8/22—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using UV light
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Drawing Aids And Blackboards (AREA)
Abstract
The invention provides a dust absorption blackboard. The dust absorption blackboard comprises a blackboard plane, a frame and a backboard, wherein a sealed space is formed by the blackboard plane and the backboard through the frame; miniature holes are fully and uniformly distributed on the surface of the blackboard plane and are communicated with the sealed space; the sealed space is divided into different cavities through division plates; an air suction pipe is arranged in each cavity; and the air suction pipe is sequentially connected to an air filtration device and a high-speed draught fan. The dust absorption blackboard is characterized in that the miniature holes are fully and uniformly distributed on the surface of the blackboard plane; the diameters of the miniature holes are in the range of 0.1-0.5mm; the area of the miniature holes occupies for 30%-70% of the area of the whole blackboard plane; and the cross sections of the miniature holes enlarge gradually in the direction of the thickness of the blackboard plane and incline downwards in the whole. The dust absorption blackboard is capable of efficiently absorbing dust generated by writing with chalk, effectively suppressing raise dust generated in an erasing link, further purifying air and improving the indoor environments of a classroom.
Description
Technical field
The present invention relates to a kind of dust-absorbing blackboard, especially relate to a kind of blackboard sucking chalk dust, can greatly reduce and produce when writing on blackboard
Raw chalk dust, it is to avoid pollute.Additionally, the present invention contributes to environment purification, ensure that teachers and students are healthy.
Background technology
Traditional blackboard panel is the most wooden, cement or glass, uses chalk to wipe with blackboard eraser after completing to write.In said process, write
Link can produce chalk dust, but more airborne dust produces in erasing link.Airborne dust enters in air and is sucked by human body, is unfavorable for healthy.
Dust-absorbing blackboard scheme before has focused on writing the chalk dust that link produces, but erasing link is produced chalk dust and does not adds attention, and therefore having must
Propose the improvement technology being correlated with, improve the effect of dedusting.Simultaneously, additionally it is possible to further purify air, health is ensured.
Summary of the invention
The present invention is directed to prior art not enough, it is proposed that a kind of dust-absorbing blackboard, can the dust that produces of efficient absorption chalk-writing, effectively suppress erasing
The airborne dust that link produces, additionally it is possible to further purify air, improve classroom indoor environment.
The technical solution adopted in the present invention:
A kind of dust-absorbing blackboard, forms confined air including blackboard panel 1, frame 2, backboard 3, described blackboard panel 1 and backboard 3 by frame 2
Between 7；Described blackboard panel 1 surface is uniformly distributed full micropore 5, and described micropore 5 connects with described confined space 7, and described confined space 7 leads to
Crossing dividing plate and be divided into different cavitys, each cavity is provided with aspiration channel, and aspiration channel is connected with air filter and high-speed fan successively；It is special
Levying and be: described micropore 5 a diameter of 0.1～0.5mm, micropore 5 area accounts for the 30%～70% of whole blackboard panel area, micropore 5 cross section
Gradually expanding on blackboard panel thickness direction, and overall downward-sloping.
One during the cross sectional shape of micropore 5 is circle, hexagon, square or square on described blackboard panel.
Described air filter includes dust-separation filter screen, HEPA filter screen, active carbon filter screen, photocatalyst, Electrostatic Absorption filter screen, and uses
Burdick lamp sterilizing processes suction air, and the cleaned air after filtration, through adding wet process, returns to indoor by air outlet.
Described dust-absorbing blackboard lower frame is hollow and is provided with supporting plate 4, and supporting plate 4 has the inclined-plane towards body of wall lopsidedness, is provided with lower frame
Air suction opening 6 phase close on, make the chalk dust fallen be easier to be inhaled into air suction opening 6, air suction opening 6 diameter is bigger than blackboard panel micropore 5 diameter,
It is 0.5～2mm.
Described dust-absorbing blackboard is additionally provided with the blackboard outer housing matched with blackboard panel, when blackboard write full word need erasing time, blackboard cover covers automatically
On blackboard panel, forming confined space with blackboard frame, the blackboard eraser automatic erasing out handwriting being located at afterwards in blackboard outer housing, simultaneously by being located at
Air suction opening 6 thereon absorbs chalk dust.
The dust-absorbing blackboard of the present invention, reasonable in design, it is possible to the old shortcoming such as overcome traditional blackboard reflective, have collected and write link and erasing ring
The chalk dust that joint produces, is greatly improved the effect of dedusting.Simultaneously, additionally it is possible to further purify air, remove pathogenic bacteria, improve classroom
Air quality, ensures that teachers and students are healthy.
Accompanying drawing explanation
Fig. 1 is dust-absorbing blackboard structural representation of the present invention；
Fig. 2 is the bottom cut-away view of dust-absorbing blackboard of the present invention.
Fig. 3 is that schematic diagram is wiped in the bar shaped of dust-absorbing blackboard of the present invention.
Fig. 4 is that the disc type of dust-absorbing blackboard of the present invention wipes schematic diagram.
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Description of reference numerals:
Blackboard panel 1
Frame 2
Backboard 3
Supporting plate 4
Micropore 5
Air suction opening 6
Confined space 7
Erasing block 8
Sucker 9
Detailed description of the invention
During with chalk-writing writing on the blackboard or blackboard wiping, chalk dust is the ofest short duration wave after fall the object plane near blackboard and on the ground.Pass through
Research finds, when chalk dust particle diameter is more than 100 microns, because its quality is relatively big, falls very fast, and the time of aloft floating is short.And it is straight
Footpath is the dust particle person of 1～20 micron, and the time of aloft floating is longer, can suck human body through nostril, cause damage.Accordingly, it would be desirable to according to
Chalk dust particle diameter, formulates dust suction and the technical scheme of filtration.
Below by detailed description of the invention, technical scheme is described in further detail.
See Fig. 1, Fig. 2, the dust-absorbing blackboard of the present embodiment is logical including blackboard panel 1, frame 2, backboard 3, described blackboard panel and backboard
Cross frame and form confined space 7 (seeing Fig. 2 gray area)；Described blackboard panel surface is uniformly distributed full micropore 5, and described micropore is with described
Confined space connect, described confined space is divided into different cavitys by dividing plate, and each cavity is provided with aspiration channel, aspiration channel successively with air mistake
Filter device is connected with high-speed fan；Described blackboard panel 1 surface is uniformly distributed full micropore 5, and micro-pore diameter is 0.1～0.5mm, micropore area
With account for the 30%～70% of whole blackboard panel area, micropore cross section is gradually expanding on blackboard panel thickness direction, and overall downward-sloping.
First, plate face micropore can not accounting too many, otherwise delay and write, writing is unclear, it is therefore desirable to limits micropore area and accounts for whole blackboard
The 30%～70% of plate face area, most preferably than should between 50%～60%, such as 55%, specifically can be according to manufacturing cost and blackboard space of a whole page material
Material is formulated；Secondly, described micro-pore diameter should be suitable with fine dust particles size, it is possible to makes dust pass through, and when writing, tiny chalk bits come off,
Under the vacuum action that high-speed fan produces, enter confined space immediately and taken away by wind.Micropore cross section is gradually being expanded on blackboard panel thickness direction
Greatly, and overall downward-sloping, contribute to promoting suction, make dust enter confined space and be more prone to settle down.
On blackboard panel, the cross sectional shape of micropore can be circular, the one in hexagon, square or square, specifically can be according to manufacturing cost
And the formulation of blackboard space of a whole page material.
The air filter of dust-absorbing blackboard can be chosen as screen system, specifically can set gradually dust-separation filter screen, for filtering bigger dust
Grain；HEPA filter screen, for filtering less dust and pellet, can select may filter that the high-performance of PM2.5 as the case may be
HEPA filter screen；Active carbon filter screen, by poisonous and harmful substances such as material absorption abnormal flavour such as activated carbons；Photocatalyst, Electrostatic Absorption filter screen and use
Burdick lamp sterilizing processes suction air, removes the virus in air, pathogenic bacteria.Cleaned air after filtration may also pass through and adds wet process,
Return to indoor by air outlet, improve classroom air quality, especially effective when north of china in winter cannot be windowed.
The lower frame hollow of dust-absorbing blackboard is also provided with supporting plate 4, and supporting plate is mainly used in carrying the chalk dust of the larger particles dropped, and supporting plate is to body of wall
Lopsidedness, air suction opening 6 phase being provided with lower frame closes on, and air suction opening 6 diameter is bigger than blackboard panel micro-pore diameter, is 0.5～2mm, makes
The chalk dust fallen is easier to be inhaled into air suction opening.
Dust-absorbing blackboard is additionally provided with the blackboard outer housing matched with blackboard panel, when blackboard write full word need erasing time, blackboard cover is driven by motor,
Automatically covering on blackboard panel, form confined space with blackboard frame, the process of erasing blackboard completes in this confined space, can strengthen simultaneously
Rotation speed of fan, accelerates the airborne dust that extraction erasing blackboard produces, can farthest avoid the harm that airborne dust causes.Additionally, stop for a long time at blackboard
Used time, blackboard outer housing is possible to prevent dust to fall the micropore at blackboard panel, on blocking plate face.
The blackboard eraser auto-erasing blackboard being located in blackboard outer housing, it can be driven by motor and realize auto-erasing action.Additionally, blackboard eraser can
To be provided with sucker, sucker is connected with aspiration channel, by being located at absorption chalk dust thereon while erasing out handwriting, improves dirt absorption
Efficiency.
Blackboard eraser could be arranged to bar shaped matched with blackboard panel and wipes, and bar shaped wiping is driven up and down by motor or left and right moves along a straight line, such as figure
3, bar shaped hollow is also provided with sucker 9, bar shaped is arranged erasing block 8, be used for wiping plate face writing, sucker by aspiration channel successively with air filtration
Device is connected with high-speed fan.
Blackboard eraser can also be disc type head, disc type head be located at erasing frame on, himself by motor drive rotate, erasing frame do up and down or
Left and right moves along a straight line, and such as Fig. 4, disc type head arranges erasing block 8, by rotation and the erasable chalk writing of coiled hair self, at fixed part
Being arranged with sucker 9, sucker is connected with air filter and high-speed fan successively by aspiration channel.
Additionally, the cleaned air after Guo Lving may also pass through damping device, such as waterfog head etc.；Religion is returned to by the air outlet of classroom ceiling
In room；Above-mentioned device in addition to blackboard body such as blower fan, defecator, damping device, driving motor etc. may be provided in dais, do not account for
With the usable floor area in classroom.
The above, be only present pre-ferred embodiments, not impose any restrictions the technical scope of the present invention, therefore every according to the present invention
Technical spirit any trickle amendment, equivalent variations and modification that above example is made, all still fall within the range of technical solution of the present invention.
Claims (5)
1. a dust-absorbing blackboard is logical including blackboard panel (1), frame (2), backboard (3), described blackboard panel (1) and backboard (3)
Cross frame (2) and form confined space (7)；Described blackboard panel (1) surface is uniformly distributed full micropore (5), and described micropore (5) is with described
Confined space (7) connects, and described confined space (7) is divided into different cavitys by dividing plate, and each cavity is provided with aspiration channel, and aspiration channel depends on
Secondary it is connected with air filter and high-speed fan；It is characterized in that: described micropore (5) a diameter of 0.1～0.5mm, micropore (5) area
Accounting for the 30%～70% of whole blackboard panel area, micropore (5) cross section is gradually expanding on blackboard panel thickness direction, and entirety dips down
Tiltedly.
Dust-absorbing blackboard the most according to claim 1, it is characterised in that: on described blackboard panel the cross sectional shape of micropore (5) be circular,
One in hexagon, square or square.
Dust-absorbing blackboard the most according to claim 1, it is characterised in that: described air filter include dust-separation filter screen, HEPA filter screen,
Active carbon filter screen, photocatalyst, Electrostatic Absorption filter screen, and use Burdick lamp sterilizing to process suction air, the cleaned air after filtration
Through adding wet process, return to indoor by air outlet.
Dust-absorbing blackboard the most according to claim 1, it is characterised in that: described dust-absorbing blackboard lower frame is hollow and is provided with supporting plate (4),
Supporting plate (4) has the inclined-plane towards body of wall lopsidedness, and the air suction opening (6) being provided with lower frame closes on mutually, makes the chalk dust fallen more hold
Easily being inhaled into air suction opening (6), air suction opening (6) diameter is bigger than blackboard panel micropore (5) diameter, is 0.5～2mm.
Dust-absorbing blackboard the most according to claim 4, it is characterised in that: described dust-absorbing blackboard is additionally provided with match with blackboard panel black
Plate outer housing, when blackboard write full word need erasing time, blackboard cover covers automatically on blackboard panel, with blackboard frame formed confined space, set afterwards
Blackboard eraser automatic erasing out handwriting in blackboard outer housing, simultaneously by being located at air suction opening thereon (6) absorption chalk dust.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610352518.0A CN105922794B (en) | 2016-05-25 | 2016-05-25 | A kind of dust-absorbing blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610352518.0A CN105922794B (en) | 2016-05-25 | 2016-05-25 | A kind of dust-absorbing blackboard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105922794A true CN105922794A (en) | 2016-09-07 |
| CN105922794B CN105922794B (en) | 2017-11-14 |
Family
ID=56842264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610352518.0A Active CN105922794B (en) | 2016-05-25 | 2016-05-25 | A kind of dust-absorbing blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105922794B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107199807A (en) * | 2017-05-22 | 2017-09-26 | 王奕贝 | Flushable blackboard |
| CN109228743A (en) * | 2018-04-18 | 2019-01-18 | 广东知识城运营服务有限公司 | A kind of body-sensing cleaning dustproof blackboard |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1554535A (en) * | 2003-12-25 | 2004-12-15 | 军 魏 | Dustless noreflection blackboard |
| CN2754899Y (en) * | 2004-12-09 | 2006-02-01 | 魏军 | Dust-collecting blackboard |
| CN2871230Y (en) * | 2005-11-25 | 2007-02-21 | 宋敏芳 | Dust-collecting blackboard |
| CN201080074Y (en) * | 2007-06-21 | 2008-07-02 | 陶俊之 | Dustless blackboard |
| CN101367309A (en) * | 2008-10-10 | 2009-02-18 | 范晓晨 | Negative-pressure dust-less blackboard |
| CN201217332Y (en) * | 2008-01-10 | 2009-04-08 | 赵仁超 | Dust absorption blackboard |
-
2016
- 2016-05-25 CN CN201610352518.0A patent/CN105922794B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1554535A (en) * | 2003-12-25 | 2004-12-15 | 军 魏 | Dustless noreflection blackboard |
| CN2754899Y (en) * | 2004-12-09 | 2006-02-01 | 魏军 | Dust-collecting blackboard |
| CN2871230Y (en) * | 2005-11-25 | 2007-02-21 | 宋敏芳 | Dust-collecting blackboard |
| CN201080074Y (en) * | 2007-06-21 | 2008-07-02 | 陶俊之 | Dustless blackboard |
| CN201217332Y (en) * | 2008-01-10 | 2009-04-08 | 赵仁超 | Dust absorption blackboard |
| CN101367309A (en) * | 2008-10-10 | 2009-02-18 | 范晓晨 | Negative-pressure dust-less blackboard |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107199807A (en) * | 2017-05-22 | 2017-09-26 | 王奕贝 | Flushable blackboard |
| CN109228743A (en) * | 2018-04-18 | 2019-01-18 | 广东知识城运营服务有限公司 | A kind of body-sensing cleaning dustproof blackboard |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105922794B (en) | 2017-11-14 |
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Effective date of registration: 20221010 Address after: Room 602, Floor 6, Xinghuo Science Park Complex Building, Tai'an High tech Zone, Tai'an City, Shandong Province, 271000 Patentee after: Shandong Yuxuan Electrical Technology Co.,Ltd. Address before: 130012 gaoxinyi famous city G6, Changchun City, Jilin Province Patentee before: Zhang Ziqi |
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