CN104786709A - Dual dust collection type blackboard eraser - Google Patents
Dual dust collection type blackboard eraser Download PDFInfo
- Publication number
- CN104786709A CN104786709A CN201510202848.7A CN201510202848A CN104786709A CN 104786709 A CN104786709 A CN 104786709A CN 201510202848 A CN201510202848 A CN 201510202848A CN 104786709 A CN104786709 A CN 104786709A
- Authority
- CN
- China
- Prior art keywords
- dust
- housing
- blackboard eraser
- power supply
- supply unit
- 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.)
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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
Abstract
The invention relates to a dual dust collection type blackboard eraser. A wiping part can wipe away handwriting on a blackboard, a power supply unit supplies power to a fan and a metal strip, the fan can adsorb dust raised in the wiping process, the metal strip can adsorb dust not sucked away by the fan, and the dual dust collection type blackboard eraser provides a storage space for dust and an installation space for the wiping part, the fan, the metal strip and the power supply unit. The fan and the metal strip conduct dual adsorption on dust so that raised dust can be completely adsorbed into a body, and therefore dust is prevented from being raised everywhere, and the harms caused by dust to health of teachers and students are reduced.
Description
Technical field
The invention belongs to teaching aid field, being specifically related to a kind of for absorbing in wiping process the dual ash-collecting blackboard eraser flying upward dust.
Background technology
" chalk, three chi dais " are the sincere praises to teacher, but praise but has many hidden danger behind.On teacher's slave station, dais is to retirement mostly at about 40 years, and more than half time of life all " will eat chalk dust ".
The Main Ingredients and Appearance of tradition chalk is calcium carbonate (lime stone) and calcium sulfate (gypsum), calcium oxide, although chalk is nontoxic, but dust is harmful to, the particulate of dust has very strong germ adsorption capacity, and harmful levels of pathogens and alkaline matter have a significant impact the lung of Faculty and Students, respiratory system, skin, ear, nose, throat.In addition, in chalk also containing a small amount of metal and heavy metal element as lead, manganese, barium, cadmium etc., after heavy metal is sucked by human body, can work the mischief to organs such as the liver of people, kidneys.
According to China's data from investigation display, along with the quickening of social rhythm, the sick rate of teaching profession is in the trend risen year by year, occupational disease presents diversified development, wherein the pneumoconiosis that causes of dust and various acute and chronic breathing problem are that China is main in occupational disease at present, and harm is the most serious and the most a kind of.
Although current school promotes multimedia teaching, but teacher attends class and is still inevitable situation with chalk writing.The method of existing solution chalk dust harm uses black-and-white blank on the market, but this blank cannot be popularized because price is too high.
Summary of the invention
The present invention carries out to solve the problem, object be to provide a kind of blackboard wiping simultaneously Absorbable rod to drop the blackboard eraser of dust, solve the problem that dust in the process of erasing the board flies upward everywhere, and lightly, durable, cheap.
The invention provides a kind of blackboard wiping simultaneously Absorbable rod to drop the blackboard eraser of dust, it is characterized in that, comprising: cleaning part, for blackboard described in wiping, dust collecting port, for adsorbing the dust kicked up in cleaning part wiping process, comprises: power supply unit, is connected and produces the bonding jumper of Electrostatic Absorption dust and be connected with power supply unit and produce the fan of negative pressure with power supply unit, and body, comprise: the first housing, be provided with the 3rd housing of exhaust outlet for provided with fan and power supply unit and be folded between the first housing and described 3rd housing for holding the second housing of dust, wherein, first housing comprises: the middle part of one end of the second housing is provided with the groove for engaging cleaning part dorsad, be located at described groove vicinity for sucking at least one suction port of dust, be located at around suction port for installing the cannelure of bonding jumper, second housing is provided with inlet scoop towards the one side of the 3rd housing, inlet scoop is coated with ventilative resistance dirt filter cloth, the air draught face of fan is just to inlet scoop.
Blackboard eraser of the present invention can also have such feature: wherein, and the side of the second housing is provided with dust mouth.
Blackboard eraser of the present invention can also have such feature: wherein, and power supply unit is 12V chargeable storage.
Blackboard eraser of the present invention can also have such feature: wherein, and the 3rd housing comprises: matrix and the base plate removably connected with the bottom of matrix, exhaust outlet is located on base plate.
Blackboard eraser of the present invention can also have such feature: wherein, and the specification of installation portion is 175mm (± 20mm) × 78mm (± 20mm), adopts insulating materials to make.
Blackboard eraser of the present invention can also have such feature: also have switch, for closed and disconnected power supply unit.
Blackboard eraser of the present invention can also have such feature: wherein, and bonding jumper is aluminum strip.
The effect of invention and effect
According to blackboard eraser involved in the present invention, because cleaning part can person's handwriting on erasing blackboard, power supply unit provides power for fan and bonding jumper, fan can adsorb the dust kicked up in wiping process, bonding jumper can adsorb not by dust that fan siphons away, body provides memory space and the cleaning part of dust, fan, the installing space of bonding jumper and power supply unit, due to fan and bonding jumper dual absorption is carried out to dust thus the dust kicked up all is adsorbed in body, thus avoid dust and fly upward everywhere, reduce the threat that dust causes Faculty and Students' health.
Accompanying drawing explanation
Fig. 1 is the structural representation of body in embodiments of the invention;
Fig. 2 is the part-structure schematic diagram of the second housing in embodiments of the invention; And
Fig. 3 is the part-structure schematic diagram of the 3rd housing in embodiments of the invention.
Concrete case study on implementation
The technological means realized to make the present invention, creation characteristic, reach object and effect is easy to understand, following examples are specifically addressed dual ash-collecting blackboard eraser of the present invention by reference to the accompanying drawings.
Fig. 1 is the structural representation of body in embodiments of the invention.
As shown in Figure 1, dual ash-collecting blackboard eraser 10, for adsorbing the dust kicked up while blackboard wiping, is avoided dust to fly upward everywhere, being comprised: body 100, cleaning part (not shown) and dust collecting port (not shown).Body 100 is for installing cleaning part and dust collecting port.
The specification of body 100 is the cuboid of 175mm (± 20mm) × 78mm (± 20mm), and adopt insulating materials to make, body 100 comprises: the first housing 110, second housing 120 and the 3rd housing 130.Second housing 120 is folded between the first housing 110 and the 3rd housing 130, is bolted between the first housing 110, second housing 120 and the 3rd housing 130.
One end of first housing 110, see with the direction in Fig. 1, this one end is the upper end of the first housing 110, the middle part of this upper end is provided with rectangular recess 111, the suction port 112a of " L " type is set around rectangular recess 111 4 angles respectively, 112b, 112c and 112d, four suction port 112a, 112b, 112c and 112d run through the first installation unit 110, width is that the cannelure 113 of 10mm is around four suction port 112a, 112b, 112c and 112d, cannelure 113 two minor face middles respectively arrange circular hole 114a and 114b.
See with the direction in Fig. 1, the upper end of the second installation unit 120 is connected with the lower end of the first installation unit 110, and the side of the second installation unit 120 is provided with dust mouth 121.
See with the direction in Fig. 1, the upper end of the 3rd installation unit 130 is connected with the lower end of the second installation unit 120,3rd installation unit 130 comprises: matrix 131 and the base plate 132 removably connected with the bottom of matrix 131, and the sidewall of matrix 131 is provided with charging hole (not shown) and switch hole (not shown).
Fig. 2 is the part-structure schematic diagram of the second housing in embodiments of the invention.
As shown in Figure 2, the lower surface 122 of the second installation unit 120 is provided with inlet scoop 123, inlet scoop 123 is coated with ventilative resistance dirt filter cloth (not shown), the position corresponding with circular hole 114a and 114b, lower surface 122 is provided with circular hole 124a and 124b.
Fig. 3 is the structural representation of installation portion bottom under blackboard eraser of the present invention.
As shown in Figure 3, base plate 131 is provided with the exhaust outlet 132 of diverging arrangement.
The person's handwriting of cleaning part on blackboard wiping, is fastened in rectangular recess 111.
Dust collecting port is for adsorbing the dust kicked up in cleaning part wiping process, dust collecting port comprises: power supply unit (not shown), is connected and produces the bonding jumper (not shown) of Electrostatic Absorption dust and be connected with power supply unit and produce in the fan figure of negative pressure and do not show with power supply unit;
Wherein, power supply unit is 12V chargeable storage, near the charging hole being arranged on the 3rd installation unit 130, when the electric energy that power supply unit stores is finished, can be charged by hole of charging to power supply unit.
Bonding jumper is the wide annular aluminum strip of 10mm, shape and the cannelure 113 of annular aluminum strip match, annular aluminum strip is arranged on cannelure 113, welding two wires on annular aluminum strip, two wires connect and compose loop through the first installation unit 110 and the second installation unit 120 with power supply unit respectively by circular hole 114a, 124a and 124b, 114b.
The small fan of fan to be voltage be 12V, be arranged in the 3rd installation unit 130, the air draught face of fan is just to inlet scoop 123.
Switch-linear hybrid, at switch hole place, for closed and disconnected power supply unit, thus makes bonding jumper and electric fan adsorption dust and non-adsorption of dust.
In the present embodiment, pass through close switch, the flabellum fast rotational of fan makes pressure in body 100 lower than external atmosphere pressure, form negative pressure region, thus by inlet scoop 112a, 112b, dust near 112c and 112d sucks in body 100, inlet scoop 123 due to the second installation unit 120 is coated with ventilative resistance dirt filter cloth, therefore, can not enter in the 3rd installation unit 130 due to the obstruct of ventilative resistance dirt filter cloth after dust is adsorbed to the second installation unit 120, thus be all collected in the second installation unit 120, wherein, the dust be not inhaled in the second installation unit 120 is adsorbed by bonding jumper.
Cut-off switch, simultaneously by cleaning part to earthward, now, bonding jumper is because not energising and do not have adsorption capacity, thus the dust that bonding jumper adsorbs drops on the ground automatically; Simultaneously, fan also stops operating cut-off switch, thus stops adsorption of dust.
After using certain hour, dust mouth 121 is opened, thus the dust that the second installation unit 120 is collected is poured out.
The effect of embodiment and effect
Dual ash-collecting blackboard eraser involved by the present embodiment, because cleaning part can person's handwriting on erasing blackboard, power supply unit provides power for fan and bonding jumper, fan can adsorb the dust kicked up in wiping process, bonding jumper can adsorb not by dust that fan siphons away, body provides memory space and the cleaning part of dust, fan, the installing space of bonding jumper and power supply unit, due to fan and bonding jumper dual absorption is carried out to dust thus the dust kicked up all is adsorbed in body, thus avoid dust and fly upward everywhere, reduce the threat that dust causes Faculty and Students' health.
In the present embodiment, the side of the second housing is provided with dust mouth, can open dust mouth in use for some time and be poured out by the dust in the second housing.
In the present embodiment, power supply unit is 12V chargeable storage, thus makes dual ash-collecting blackboard eraser Reusability of the present invention.
Above-mentioned embodiment is preferred case of the present invention, is not used for limiting the scope of the invention.
Claims (7)
1. a dual ash-collecting blackboard eraser, for adsorbing the dust kicked up while blackboard wiping, is characterized in that, comprise:
Cleaning part, for blackboard described in wiping;
Dust collecting port, for adsorbing the dust kicked up in described cleaning part wiping process, comprises: power supply unit, is connected and produces the bonding jumper of Electrostatic Absorption dust and be connected with described power supply unit and produce the fan of negative pressure with described power supply unit; And
Body, comprises: the first housing, for installing described fan and described power supply unit and being provided with the 3rd housing of exhaust outlet and being folded in for holding the second housing of described dust between described first housing and described 3rd housing,
Wherein, described first housing comprises: dorsad the middle part of one end of described second housing be provided with groove for engaging described cleaning part, be located at described groove vicinity for suck described dust at least one suction port, be located at around described suction port for installing the cannelure of described bonding jumper
Described second housing is provided with inlet scoop towards the one side of described 3rd housing, described inlet scoop is coated with ventilative resistance dirt filter cloth, and the air draught face of described fan is just to described inlet scoop.
2. blackboard eraser according to claim 1, is characterized in that:
Wherein, the side of described second housing is provided with dust mouth.
3. blackboard eraser according to claim 1, is characterized in that:
Wherein, described power supply unit is 12V chargeable storage.
4. blackboard eraser according to claim 1, is characterized in that:
Wherein, described 3rd housing comprises: matrix and the base plate removably connected with the bottom of described matrix, described exhaust outlet is located on described base plate.
5. blackboard eraser according to claim 1, is characterized in that:
Wherein, the specification of described body is 175mm (± 20mm) × 78mm (± 20mm), adopts insulating materials to make.
6. blackboard eraser according to claim 1, is characterized in that, also has:
Switch, for power supply unit described in closed and disconnected.
7. blackboard eraser according to claim 1, is characterized in that:
Wherein, described bonding jumper is aluminum strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510202848.7A CN104786709A (en) | 2015-04-24 | 2015-04-24 | Dual dust collection type blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510202848.7A CN104786709A (en) | 2015-04-24 | 2015-04-24 | Dual dust collection type blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104786709A true CN104786709A (en) | 2015-07-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510202848.7A Pending CN104786709A (en) | 2015-04-24 | 2015-04-24 | Dual dust collection type blackboard eraser |
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| Country | Link |
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| CN (1) | CN104786709A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105270061A (en) * | 2015-11-19 | 2016-01-27 | 华蓥市双河第二小学 | Blackboard eraser good in dust sucking and accumulating effect |
| CN105346316A (en) * | 2015-11-19 | 2016-02-24 | 华蓥市双河第二小学 | Electrostatic dust suction blackboard eraser |
| CN105346313A (en) * | 2015-11-19 | 2016-02-24 | 华蓥市双河第二小学 | Electrostatic dust prevention blackboard eraser capable of spraying water |
| CN106827904A (en) * | 2017-02-15 | 2017-06-13 | 上海应用技术大学 | A kind of Portable dust obsorption blackboard eraser |
| CN107379840A (en) * | 2017-07-27 | 2017-11-24 | 冯雪 | A kind of self-cleaning blackboard eraser |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2573699A1 (en) * | 1984-11-28 | 1986-05-30 | Lobez Sagues Manuel | Device for erasing writing from blackboards |
| CN2057147U (en) * | 1989-03-16 | 1990-05-16 | 杨滨 | Electrostatic dust adsorption blackboard eraser |
| CN201357669Y (en) * | 2009-02-21 | 2009-12-09 | 韦新 | Static dust-free blackboard eraser |
| CN203157519U (en) * | 2013-01-10 | 2013-08-28 | 中国石油大学(华东) | Electrostatic-precipitation blackboard eraser |
| CN203157518U (en) * | 2013-01-10 | 2013-08-28 | 中国石油大学(华东) | Novel multifunctional blackboard eraser |
-
2015
- 2015-04-24 CN CN201510202848.7A patent/CN104786709A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2573699A1 (en) * | 1984-11-28 | 1986-05-30 | Lobez Sagues Manuel | Device for erasing writing from blackboards |
| CN2057147U (en) * | 1989-03-16 | 1990-05-16 | 杨滨 | Electrostatic dust adsorption blackboard eraser |
| CN201357669Y (en) * | 2009-02-21 | 2009-12-09 | 韦新 | Static dust-free blackboard eraser |
| CN203157519U (en) * | 2013-01-10 | 2013-08-28 | 中国石油大学(华东) | Electrostatic-precipitation blackboard eraser |
| CN203157518U (en) * | 2013-01-10 | 2013-08-28 | 中国石油大学(华东) | Novel multifunctional blackboard eraser |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105270061A (en) * | 2015-11-19 | 2016-01-27 | 华蓥市双河第二小学 | Blackboard eraser good in dust sucking and accumulating effect |
| CN105346316A (en) * | 2015-11-19 | 2016-02-24 | 华蓥市双河第二小学 | Electrostatic dust suction blackboard eraser |
| CN105346313A (en) * | 2015-11-19 | 2016-02-24 | 华蓥市双河第二小学 | Electrostatic dust prevention blackboard eraser capable of spraying water |
| CN106827904A (en) * | 2017-02-15 | 2017-06-13 | 上海应用技术大学 | A kind of Portable dust obsorption blackboard eraser |
| CN107379840A (en) * | 2017-07-27 | 2017-11-24 | 冯雪 | A kind of self-cleaning blackboard eraser |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150722 |
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| WD01 | Invention patent application deemed withdrawn after publication |