CN106515284B - A kind of efficient powder-sucking eraser for blackboard - Google Patents
A kind of efficient powder-sucking eraser for blackboard Download PDFInfo
- Publication number
- CN106515284B CN106515284B CN201611011175.8A CN201611011175A CN106515284B CN 106515284 B CN106515284 B CN 106515284B CN 201611011175 A CN201611011175 A CN 201611011175A CN 106515284 B CN106515284 B CN 106515284B
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- China
- Prior art keywords
- housing
- guide plate
- plate
- passage
- holding tank
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Classifications
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- 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
- B43L21/00—Blackboard or slate cleaning devices
- B43L21/02—Blackboard or slate cleaning devices with means for absorbing the chalk dust
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- Drawing Aids And Blackboards (AREA)
- Electrostatic Separation (AREA)
Abstract
It is hollow cavity in the housing, the side of the housing outer surface is equipped with endless glide, annular brush is provided with the endless glide the invention discloses a kind of efficient powder-sucking eraser for blackboard, including housing；Collection system is equipped with the housing, the collection system includes the first guide plate, the second guide plate, air hole, passage and holding tank, first guide plate is arranged in the housing top droop close to described case top one end and relatively described housing, second guide plate be arranged on the housing in close to described housing bottom one end and with the bottom angled of the housing, the air hole is arranged in the housing side and is connected with the passage, the holding tank is arranged on the bottom in the housing, and the holding tank is connected with the passage；Electrostatic Absorption system is additionally provided with the housing.Blackboard eraser prepared by the present invention can fast and efficiently adsorb chalk dust, have large market promotional value.
Description
【Technical field】
The invention belongs to teaching equipment field, more particularly to a kind of efficient powder-sucking eraser for blackboard.
【Background technology】
Chalk is instrument widely used in teaching aid, is generally used for being written on blackboard.Now, the domestic powder used
Pen mainly has common two kinds of a chalk and dust-free chalk, its main component is calcium carbonate (lime stone) and calcium sulfate (gypsum), or
Containing a small amount of calcium oxide.At present, on the market among chalk composition, in addition to metallic element lead, manganese, barium equal size are relatively low, cadmium metal
Content it is higher, after cadmium is sucked by human body, major storage is obvious to these histologic lesions in liver, kidney, bone tissue, connects for a long time
Major lesions caused by touching cadmium compound are pulmonary emphysema and kidney damage.The state of an illness in sexual development is carried out, Early manifestation is powerless, it is thin,
Dizziness, insomnia and dreamful sleep, anorexia and neurasthenia symptom, and have nosebleed, chronic pharyngitis, Atrophic nasal mucosas and ulcer etc. now
As.Pulmonary emphysema are slowly in progress, and patient has progressive expiratory dyspnea, and activity aggravates, with palpitaition.Cadmium is also most to easily lead to cancer at the same time
One of metallic element of disease.Although chalk dust has no human body big evil, but the teacher that China is millions of, it will use daily
Chalk makees writing on the blackboard, all lives in daily in the chalk dust after blackboard wiping, can still cause nose, pharynx, throat uncomfortable.
It is that gypsum powder is coated on blackboard with chalk-writing writing on the blackboard.During blackboard wiping, chalk dust is of short duration in atmosphere to float
Object plane and the ground fallen after raising near blackboard.Its particle is larger, heavier more more than 100 microns, falls comparatively fast, in sky
In float the time it is short.In teaching process, chalk dust is easy to be inhaled into lung, and majority is delayed in alveolar, chalk dust into
The approach for entering lung is to include nose, pharynx, bronchus by the upper respiratory tract, and in this course, part dust stays in the upper respiratory tract,
Mechanical stimulus and damage are produced to mucomembranous epithelial cell, worked in such a case for a long time, easily induces rhinitis sicca, plumpness
Property rhinitis；Influence to pharynx mainly induces chronic bronchitis, can also trigger asthma sometimes, in addition it is also possible to causing nose
The canceration of the parts such as pharynx, bronchus.Chalk dust is once fallen into eye, stimulates lacrimal secretion, and tears hydrolyze the carbonic acid in chalk dust
Calcium and produce alkaline matter, will eye moderate stimulation eye mucous membranes, cause mucosa injury, form chronic inflammation.Therefore, research is a kind of
Being capable of efficient absorption chalk dust and will not to bring the blackboard eraser of dust pollution be current urgent problem to be solved.
Publication No. CN101850685A, the Chinese patent application of entitled dust absorption blackboard eraser, discloses a kind of suction
The shortcomings that dirt blackboard eraser, the patent is：Motor, battery, fan and wet sponge combination so that the blackboard eraser entirety weight greatly,
Power consumption is more and noise is big, inconvenient using the blackboard eraser.
【The content of the invention】
The present invention adsorbs the problem of chalk dust particulate efficiency is not high for electric blackboard eraser existing in the prior art, there is provided one
Kind efficient powder-sucking eraser for blackboard.
To solve the above problems, the technical solution adopted in the present invention is：A kind of efficient powder-sucking eraser for blackboard, including housing,
It is characterized in that：It is hollow cavity in the housing, the side of the housing outer surface is equipped with endless glide, the endless glide
On annular brush is installed, be additionally provided with suction inlet on the housing, the suction inlet is located at same side with the annular brush,
The central shaft of the suction inlet and the central shaft of the annular brush are same straight line；
Be equipped with collection system in the housing, the collection system including the first guide plate, the second guide plate, air hole,
Passage and holding tank, first guide plate are arranged in the housing close to described case top one end and relatively described housing
Top droop, second guide plate are arranged in the housing close to described housing bottom one end and incline with the bottom of the housing
Tiltedly, the passage is arranged on the side opposite with the annular brush in the housing, the passage be equipped with the first blow vent with
Second blow vent, first blow vent receive the chalk dust passed over along first guide plate, second blow vent
Receive the chalk dust that is passed over along second guide plate, the air hole be arranged in the housing side and with the passage
Connection, the holding tank are arranged on the bottom in the housing, and the holding tank is connected with the passage；
Electrostatic Absorption system is additionally provided with the housing, the Electrostatic Absorption system includes minus plate, positive plate and power supply,
The minus plate is installed on the top in the housing and is arranged on described the moon positioned at the top of first guide plate, the power supply
The top of pole plate, the positive plate are installed on the top of the holding tank and positioned at the lower section of second guide plate, described the moon
Pole plate, the positive plate are connected with the power supply.
Further, first guide plate installation parallel with second guide plate.
Further, the material of first guide plate and second guide plate is glass plate.
Further, the annular brush is bristles hairbrush.
Further, the holding tank is detachably installed.
Further, the housing outer surface is provided with switch button, and the switch button is connected with the power supply.
The invention has the advantages that：
1. the collection system in the present invention can utilize air flow principle, chalk dust is adsorbed, guided and is collected,
Chalk dust can effectively be collected.Collection system can make using suction inlet and air hole as the air gas flow path in housing
Air when annular brush quickly rotates around annular brush is formed compared with hyperbar air-flow, and air pressure is produced with the air in housing
Difference, so as to form the air draught quickly flowed, then guides by chalk dust of the first guide plate, the second guide plate and passage
Passage, the particle for driving diameter >=10 micron in chalk dust with air draught enters chalk dust guiding channel, finally in holding tank
It is collected, can efficiently collects the particle of diameter >=10 micron in chalk dust.
2. Electrostatic Absorption system of the present invention can utilize the electric field that minus plate and positive plate form, to diameter≤
10 microns of charged particle forms strong suction-operated, efficient absorption charged particle.The particle of diameter≤10 micron is in ring
In the quick rotation of shape hairbrush for the particle being relatively large in diameter, it is easier to electric charge is taken because of frictional impact, forms band
Electric particle, charged particle enter electric field under the drive of air draught, are attracted be subject to electric field, be no longer on suspended state and with
Drift outside housing with air draught, but adsorbed by electric field, drawn in adsorption process by the first guide plate and the second guide plate
Lead, then under the drive of air draught, enter passage and holding tank along the first guide plate and the second guide plate, so that efficiently
Collect the particle of footpath≤10 micron.
3. collection system in the present invention and electrostatic absorption system cooperate, mutually promote, absorption that can be in all directions
The different chalk ash particle of particle diameter, has reached the effect for fast and efficiently adsorbing chalk dust, there is large market to promote
Value.
【Brief description of the drawings】
Fig. 1 is a kind of front view of efficient powder-sucking eraser for blackboard of the embodiment of the present invention；
Fig. 2 is a kind of right view of efficient powder-sucking eraser for blackboard of the embodiment of the present invention；
Fig. 3 is a kind of left view of efficient powder-sucking eraser for blackboard of the embodiment of the present invention.
Main element symbol description：1st, housing；2nd, power supply；3rd, annular brush；4th, endless glide；5th, suction inlet；6th, store
Groove；7th, positive plate；8th, minus plate；9th, the second guide plate；10th, air hole；11st, passage；12nd, the first guide plate；13rd, the first ventilation
Mouthful；14th, the second blow vent.
【Embodiment】
In a kind of better embodiment of the present invention, as shown in Figure 1, Figure 2 and Figure 3, a kind of efficient powder-sucking eraser for blackboard, bag
Housing 1 is included, is hollow cavity in the housing 1, the side of 1 outer surface of housing is equipped with endless glide 4, the endless glide
Annular brush 3 is installed, the installation of the endless glide 4 can be wiped preferably easy to drive the spin friction of annular brush 3 on 4
Chalk dust is wiped, suction inlet 5 is additionally provided with the housing 1, the suction inlet 5 is located at same side, institute with the annular brush 3
It is same straight line that the central shaft of suction inlet 5, which is stated, with the central shaft of the annular brush 3, in order to which chalk dust is easily adsorbed into institute
State inside housing 1；
Collection system is equipped with the housing 1, the collection system includes the first guide plate 12, the second guide plate 9, breathes freely
Hole 10, passage 11 and holding tank 6, first guide plate 12 are arranged in the housing 1 close to described 1 top one end of housing and phase
To 45 degree of the top droop of the housing 1, second guide plate 9 is arranged in the housing 1 close to 1 bottom end of housing
And 45 degree of the bottom angled of relatively described housing 1, first guide plate 12 and second guide plate 9 can be guided preferably
Into the flow direction of the chalk dust in housing 1, the passage 11 is arranged on side opposite with the annular brush 3 in the housing 1,
The passage 11 is equipped with the first blow vent 13 and the second blow vent 14, and first blow vent 13 is received to be oriented to along described first
The chalk dust that plate 12 passes over, second blow vent 14 receive the chalk dust passed over along second guide plate 9, institute
State air hole 10 to connect on 1 side of housing and with the passage 11, the air hole 10 can be protected with the suction inlet 5
The air circulation in housing 1 is demonstrate,proved, the air-flow guiding chalk dust formed when rotating the annular brush 3 enters in the housing 1,
The holding tank 6 is arranged on the bottom in the housing 1, and the holding tank 6 is connected with the passage 11, and the holding tank 6 is used
To store the chalk dust into the passage 11；
Electrostatic Absorption system is additionally provided with the housing 1, the Electrostatic Absorption system includes minus plate 8, positive plate 7 and electricity
Source 2, the minus plate 8 are installed on the top in the housing 1 and positioned at the top of first guide plate 12, the power supplys 2
Arranged on the top of the minus plate 8, the positive plate 7 is installed on the top of the holding tank 6 and is located at second guide plate 9
Lower section, the minus plate 8, the positive plate 7 are connected with the power supply 2.
Further, first guide plate 12 and the 9 parallel installation of the second guide plate, in order to be carried out to chalk dust
Stop and guide.
Further, the material of first guide plate 12 and second guide plate 9 is glass plate, the surface of glass
It is smooth, friction coefficient is small, it is easier to guide the flow direction of chalk dust.
Further, the annular brush 3 is bristles hairbrush, and bristles have glossy, elastic, toughness, rub resistance and do not hinder
The advantages of material surface, be adapted as the hairbrush material of blackboard wiping.
Further, the holding tank 6 is detachably installed, in order to collect and clear up chalk dust.
Further, 1 outer surface of housing is provided with switch button, and the switch button is connected with the power supply 2, with
Easy to be controlled to the break-make of the power supply 2.
The operation principle of the present invention：Start the button that control power supply 2 switchs, minus plate 8 and positive plate 7 is formed electric field,
Chalk dust is produced when blackboard eraser to be moved left and right to the letter written with chalk on blackboard wiping, while the annular brush 3 on blackboard eraser is in annular
Quickly rotate on slide 4, be centrally formed in annular brush 3 compared with hyperbar, draught head is produced with the air in housing 1, so that shape
Into the air draught of quick flowing, chalk dust also quick rotation under the drive of annular brush 3, diameter wherein in chalk dust >=
10 microns of particle is entered in housing 1 under air draught drive by suction inlet 5, is subject to the first guide plate 12 and second to be oriented to
After the guiding of plate 9, the edge along the first guide plate 12, the second guide plate 9 passes through the first blow vent 13 and the second blow vent 14
Into passage 11, stored by holding tank 6；At the same time, in chalk dust the particle of diameter≤10 micron due in air gas
The more collision opportunity of particle of diameter group >=10 micron are obtained in stream, are also easier to take electric charge, form charged particle, it is powered
Particle enters electric field under the drive of air draught, is subject to attracting for the electric field of minus plate 8 and the composition of positive plate 7, is no longer on
Suspended state simultaneously follows air draught to drift outside housing 1, but is adsorbed by electric field, by the first guide plate 12 in adsorption process
Stop with the second guide plate 9, then under the drive of air draught, along the edge of the first guide plate 12, the second guide plate 9 point
Passage 11 is not entered by the first blow vent 13 and the second blow vent 14, is stored by holding tank 6.When blackboard eraser wipes chalk
After the process of word, the button that control power supply 2 switchs is pinned, power supply 2 is closed, takes out holding tank 6, clear up in holding tank 6
Holding tank 6, is finally installed back the housing 1 of blackboard eraser by chalk dust, and the work of blackboard eraser terminates.
Collection system in the present invention can utilize air flow principle, and chalk dust is adsorbed, guided and is collected, energy
Enough effective collection chalk dusts.Collection system, can using suction inlet 5 and air hole 10 as the air gas flow path in housing 1
Air when making the annular brush 3 quickly rotate around annular brush 3 is formed to be produced compared with the air in hyperbar air-flow, with housing 1
Draught head, so as to form the air draught quickly flowed, is then with the first guide plate 12, the second guide plate 9 and passage 11
Chalk dust guiding channel, the particle for driving diameter >=10 micron in chalk dust with air draught enter chalk dust guiding channel, most
It is collected afterwards in holding tank 6, can efficiently collects the particle of diameter >=10 micron in chalk dust.
Electrostatic Absorption system of the present invention can utilize the electric field that minus plate 8 and positive plate 7 form, to diameter≤
10 microns of charged particle forms strong suction-operated, efficient absorption charged particle.The particle of diameter≤10 micron is in ring
In the quick rotation of shape hairbrush 3 for the particle being relatively large in diameter, it is easier to electric charge is taken because of frictional impact, forms band
Electric particle, charged particle enter electric field under the drive of air draught, are attracted be subject to electric field, be no longer on suspended state and with
Drift outside housing 1 with air draught, but adsorbed by electric field, by the first guide plate 12 and the second guide plate in adsorption process
9 guiding, then under the drive of air draught, enter passage 11 and holding tank along the first guide plate 12 and the second guide plate 9
6, so as to efficiently collect the particle of footpath≤10 micron.
The collection system and electrostatic absorption system of the present invention cooperates, and mutually promotes, absorbing particles that can be in all directions
The different chalk ash particle of diameter, has reached the effect for fast and efficiently adsorbing chalk dust, has had large market promotion price
Value.
Claims (6)
1. a kind of efficient powder-sucking eraser for blackboard, including housing, it is characterised in that：It is hollow cavity in the housing, outside the housing
The side on surface is equipped with endless glide, and annular brush is provided with the endless glide, and suction inlet, institute are additionally provided with the housing
State suction inlet and be located at same side with the annular brush, the central shaft of the suction inlet and the central shaft of the annular brush are
Same straight line；
Collection system is equipped with the housing, the collection system includes the first guide plate, the second guide plate, air hole, passage
And holding tank, first guide plate are arranged in the housing top close to described case top one end and relatively described housing
Tilt, second guide plate be arranged on the housing in close to described housing bottom one end and with the bottom angled of the housing,
The passage is arranged on side opposite with the annular brush in the housing, and the passage is equipped with the first blow vent and second
Blow vent, first blow vent receive the chalk dust passed over along first guide plate, and second blow vent receives
The chalk dust passed over along second guide plate, the air hole are arranged in the housing side and connect with the passage
Logical, the holding tank is arranged on the bottom in the housing, and the holding tank is connected with the passage；
Electrostatic Absorption system is additionally provided with the housing, the Electrostatic Absorption system includes minus plate, positive plate and power supply, described
Minus plate is installed on the top in the housing and is arranged on the minus plate positioned at the top of first guide plate, the power supply
Top, the positive plate be installed on the top of the holding tank and positioned at second guide plate lower section, the minus plate,
The positive plate is connected with the power supply.
A kind of 2. efficient powder-sucking eraser for blackboard according to claim 1, it is characterised in that：First guide plate and described the
The parallel installation of two guide plates.
A kind of 3. efficient powder-sucking eraser for blackboard according to claim 1, it is characterised in that：First guide plate and described
The material of two guide plates is glass plate.
A kind of 4. efficient powder-sucking eraser for blackboard according to claim 1, it is characterised in that：The annular brush is bristles hair
Brush.
A kind of 5. efficient powder-sucking eraser for blackboard according to claim 1, it is characterised in that：The holding tank is detachably installed.
A kind of 6. efficient powder-sucking eraser for blackboard according to claim 1, it is characterised in that：The housing outer surface is provided with out
Button is closed, the switch button is connected with the power supply.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810245367.8A CN108859526A (en) | 2016-11-16 | 2016-11-16 | A kind of method of dust suction |
| CN201810245776.8A CN108466509B (en) | 2016-11-16 | 2016-11-16 | Blackboard eraser |
| CN201611011175.8A CN106515284B (en) | 2016-11-16 | 2016-11-16 | A kind of efficient powder-sucking eraser for blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611011175.8A CN106515284B (en) | 2016-11-16 | 2016-11-16 | A kind of efficient powder-sucking eraser for blackboard |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810245367.8A Division CN108859526A (en) | 2016-11-16 | 2016-11-16 | A kind of method of dust suction |
| CN201810245776.8A Division CN108466509B (en) | 2016-11-16 | 2016-11-16 | Blackboard eraser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106515284A CN106515284A (en) | 2017-03-22 |
| CN106515284B true CN106515284B (en) | 2018-05-11 |
Family
ID=58351951
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611011175.8A Active CN106515284B (en) | 2016-11-16 | 2016-11-16 | A kind of efficient powder-sucking eraser for blackboard |
| CN201810245367.8A Pending CN108859526A (en) | 2016-11-16 | 2016-11-16 | A kind of method of dust suction |
| CN201810245776.8A Active CN108466509B (en) | 2016-11-16 | 2016-11-16 | Blackboard eraser |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810245367.8A Pending CN108859526A (en) | 2016-11-16 | 2016-11-16 | A kind of method of dust suction |
| CN201810245776.8A Active CN108466509B (en) | 2016-11-16 | 2016-11-16 | Blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN106515284B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108466509A (en) * | 2016-11-16 | 2018-08-31 | 陈伟民 | A kind of blackboard eraser |
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| US4742594A (en) * | 1986-09-09 | 1988-05-10 | Chen Jin Sheng | Blackboard eraser |
| CN2133465Y (en) * | 1992-06-06 | 1993-05-19 | 王永章 | Dust-catched eraser |
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| CN2409062Y (en) * | 2000-01-31 | 2000-12-06 | 蔡学平 | Dust-absorbing blackboard eraser |
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| CN2084009U (en) * | 1990-11-30 | 1991-09-04 | 刘剑波 | Corona dusting blackboard |
| JPH10203089A (en) * | 1997-01-21 | 1998-08-04 | Fuoresuta:Kk | White board wiper |
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| CN203063440U (en) * | 2013-01-10 | 2013-07-17 | 王钦嵩 | Electric blackboard eraser |
| CN106042737A (en) * | 2016-08-14 | 2016-10-26 | 薛钦方 | Electrostatic precipitation blackboard eraser |
| CN106515284B (en) * | 2016-11-16 | 2018-05-11 | 海门黄海创业园服务有限公司 | A kind of efficient powder-sucking eraser for blackboard |
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2016
- 2016-11-16 CN CN201611011175.8A patent/CN106515284B/en active Active
- 2016-11-16 CN CN201810245367.8A patent/CN108859526A/en active Pending
- 2016-11-16 CN CN201810245776.8A patent/CN108466509B/en active Active
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|---|---|---|---|---|
| US4742594A (en) * | 1986-09-09 | 1988-05-10 | Chen Jin Sheng | Blackboard eraser |
| CN2133465Y (en) * | 1992-06-06 | 1993-05-19 | 王永章 | Dust-catched eraser |
| CN2202652Y (en) * | 1994-10-08 | 1995-07-05 | 赵卿 | Suction type electric blackboard eraser |
| CN2267169Y (en) * | 1996-10-28 | 1997-11-12 | 赵和春 | Dustless blackboard wiper |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108466509A (en) * | 2016-11-16 | 2018-08-31 | 陈伟民 | A kind of blackboard eraser |
| CN108466509B (en) * | 2016-11-16 | 2020-07-14 | 泉州台商投资区国钗商贸有限公司 | Blackboard eraser |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106515284A (en) | 2017-03-22 |
| CN108466509A (en) | 2018-08-31 |
| CN108859526A (en) | 2018-11-23 |
| CN108466509B (en) | 2020-07-14 |
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