CN202319617U - Static negative pressure compound dedusting blackboard eraser - Google Patents
Static negative pressure compound dedusting blackboard eraser Download PDFInfo
- Publication number
- CN202319617U CN202319617U CN2011204607123U CN201120460712U CN202319617U CN 202319617 U CN202319617 U CN 202319617U CN 2011204607123 U CN2011204607123 U CN 2011204607123U CN 201120460712 U CN201120460712 U CN 201120460712U CN 202319617 U CN202319617 U CN 202319617U
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- China
- Prior art keywords
- blackboard eraser
- side cover
- static
- switch
- negative pressure
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Abstract
The utility model relates to a static negative pressure compound dedusting blackboard eraser comprising hair brushes and a shell, wherein the shell is internally provided with a fan, a filter screen, a power supply, a boosting element, an exhaust port, a base plate, dust absorption holes, a switch and a side cover switch; the fan is connected with the switch in series by virtue of a wire, and the exhaust port is arranged in a cavity where the fan is located; and the static negative pressure compound dedusting blackboard eraser is characterized by also comprising a pair of static polar plates; and the static polar plates are connected with the boosting element, the switch and the side cover switch in series by virtue of wires, the power supply is used for supplying power to the blackboard eraser, the static negative pressure compound dedusting blackboard eraser is provided with a certain quantity of dust absorption holes, and the dust absorption holes and the hair brushes are alternately arranged. The static negative pressure compound dedusting blackboard eraser disclosed by the utility model has a simple structure, and dust is reduced while a blackboard is erased, and thus teaching environment is improved and physical and psychological health of teachers and students can be facilitated; besides, the blackboard eraser can be taken as a micro dust collector to be used at a home and in a car, a dedusting effect is good, and the blackboard eraser is convenient to use; and the blackboard eraser is safe in design, when a rear side cover plate is opened, a boosting circuit is in an open circuit state, and electric shock can not occur even if the rear side cover plate is opened by mistake.
Description
Technical field
The utility model relates to a kind of school day staple, is specifically related to a kind of static negative pressure combined type dedusting blackboard eraser.
Background technology
We know in highly developed current social every field, a from ancient times to the present all very important field---field of Education and teaching is arranged, and its role is indispensable to we the whole mankind, and it is promoting human civilization advance; Progress of science and technology; The progress of social productive forces.
And in education and instruction; All to use the most traditional instrument---blackboard, chalk and blackboard eraser; Though they bring great convenience for we mankind, also have our human disadvantageous one side simultaneously, have cleaned off a blackboard though that is to say current employed blackboard eraser; But it also can make and occur amounts of dust in the classroom around the blackboard simultaneously; Directly influencing student and teacher's health, and even have part to suffer from serious pneumoconiosis the teacher of teaching one line for a long time, also is very big injury to environment.Improvement to blackboard eraser never stops the blackboard eraser that picture patent 200910210290 is announced; The size that has changed size makes to hold easily takes; Patent 200910210290.1 invention be the blackboard eraser with the blackboard one; The whole space of a whole page of one less important wiping, but wipe very heavyly soon, and above said blackboard eraser patent all do not solve dust problem.
Summary of the invention
The problem that the utility model will solve is exactly: can cause the deficiency of a large amount of dust from flying when using to existing blackboard eraser, propose a kind of static negative pressure combined type blackboard eraser that can when erasing the board, eliminate dust.
The technical scheme of the utility model is: a kind of static negative pressure combined type dedusting blackboard eraser comprises hairbrush and housing; Wherein: in housing, be provided with blower fan, screen pack, power supply, the element that boosts, exhaust outlet, base plate, air suction opening, switch and side cover switch; Blower fan is through lead and switch series connection, and power supply is the blower fan power supply; Blower fan place cavity is provided with exhaust outlet; Said blackboard eraser also comprises a pair of static pole plate; The static pole plate is connected with the element that boosts, switch and side cover switch through lead; Power supply is its power supply, separates connection by screen pack between the cavity at the cavity at static pole plate place and blower fan place, and the cavity bottom surface at static pole plate place is a base plate; Base plate is provided with the air suction opening by some, and air suction opening and hairbrush are alternately arranged.
Described static negative pressure combined type dedusting blackboard eraser, described side cover switch is arranged on the side cover, and when the side cover then side cover switch closure that closes, side cover is opened the side cover switch and is broken off.
Described static negative pressure combined type dedusting blackboard eraser, the air suction opening on the described base plate are arranged between two row's hairbrush.
Described static negative pressure combined type dedusting blackboard eraser, the said element that boosts provides high pressure for the static pole plate.
Described static negative pressure combined type dedusting blackboard eraser, said static pole plate are provided with by certain regularly arranged aperture, and the diameter of aperture is 2-3mm.
The good effect of the utility model:
1. the utility model is simple in structure, when erasing the board, reduces dust, thereby improves teaching environment, helps the physical and mental health of Faculty and Students;
2. the utility model also can be used as micro-cleaner and uses at home with in the car, and good dedusting effect is very easy to use;
3. the utility model design safety, when opening side cover, booster circuit just is in off state, also can not get an electric shock even open by mistake side cover.
Description of drawings
Fig. 1 is the long side face cutaway view of static negative pressure combined type dedusting blackboard eraser;
Fig. 2 is a static negative pressure combined type dedusting blackboard eraser short brink view;
Fig. 3 is a static negative pressure combined type dedusting blackboard eraser end face view;
Fig. 4 is a static negative pressure combined type dedusting blackboard eraser bottom view;
Fig. 5 is a static negative pressure combined type dedusting blackboard eraser long side face partial sectional view;
Fig. 6 is the circuit for producing high voltage figure of the utility model;
Fig. 7 is the blower fan circuit diagram of the utility model;
Wherein: 1 is housing, and 2 is hairbrush, and 3 is blower fan, and 4 is the static pole plate, and 5 is power supply, and 6 are the element that boosts, 7 base plates, and 8 air suction openings, 9 exhaust outlets, 10 screen packs, 11 side covers, 12 switches, K1 are boosted switch, and K2 is a fan switch, and LED is an indicator lamp.
The specific embodiment
Embodiment one: the utility model comprises hairbrush and housing; In housing, be provided with static pole plate, blower fan, screen pack, power supply, the element that boosts, exhaust outlet, base plate, air suction opening, switch and side cover switch.Wherein the static pole plate is connected in series through lead and boost element, switch and side cover switch, and blower fan is connected in series through lead and switch, and battery is that blower fan and static pole plate provide power supply.
The static pole plate adopts two-piece type structure up and down, uses screw to be fixed in the above housing of base plate; On the static pole plate, be drilled with by certain regularly arranged aperture, the diameter of aperture is 3mm.
Separated by screen pack between the cavity at the cavity at blower fan place and static pole plate place, the specification of screen pack is the screen pack about 150 orders; Fan switch is the squash type press button, during extruding, and the closed-loop path, blower fan gets into duty; And loop automatic disconnection when unclamping, blower fan quits work; Boosted switch is the work of pressing, and clicks to quit work again.
In side, leave a mobilizable rear side cover plate, this cover plate can be opened; Be provided with the side cover switch that uses with shell above; The rear side cover plate is in main part and contacts conducting state at ordinary times, and when opening the rear side cover plate, booster circuit just is in off state.
The working method of the utility model is: at first closed boosted switch, and indicator lamp is bright, and the element that boosts is started working; At the high pressure that produces about five kilovolts between the static pole plate; The static pole plate gets into duty, pushes fan switch with thumb then, and blower fan is started working; Produce negative pressure in the cavity that makes the static pole plate belong to, thereby the air of outside is got into from the air suction opening of base plate in the cavity at static pole plate place.
Dust gets in the cavity at static pole plate place through the air suction opening of base plate with air, and most dust are attracted on the static pole plate, and the air that contains low amounts of dust is then counted strainer filtering through high order and purified in the laggard cavity of going into the blower fan place.Under fan action, discharge from air outlet.Treat that turning off boosted switch after blackboard eraser totally promptly accomplishes the whole operation process.
At set intervals, can open the rear side cover plate, discharge takes down two static pole plates more earlier, clears up away dust, installs the static pole plate after the cleaning earlier and covers the rear side cover plate again.
Embodiment two: do not repeat with embodiment one identical part, different is that the structure of static pole plate is to put a monolithic in the middle of the rectangular boxes, is respectively positive and negative electrode; It around the hairbrush of base plate the very big sealing ring of a circle elasticity.
Claims (5)
1. a static negative pressure combined type dedusting blackboard eraser comprises hairbrush and housing; Wherein: in housing, be provided with blower fan, screen pack, power supply, the element that boosts, exhaust outlet, base plate, air suction opening, switch and side cover switch; Blower fan is through lead and switch series connection, and power supply is the blower fan power supply; Blower fan place cavity is provided with exhaust outlet; It is characterized in that: said blackboard eraser also comprises a pair of static pole plate; The static pole plate is connected with the element that boosts, switch and side cover switch through lead; Power supply is its power supply, separates connection by screen pack between the cavity at the cavity at static pole plate place and blower fan place, and the cavity bottom surface at static pole plate place is a base plate; Base plate is provided with the air suction opening by some, and air suction opening and hairbrush are alternately arranged.
2. according to claims 1 described static negative pressure combined type dedusting blackboard eraser, it is characterized in that: described side cover switch is arranged on the side cover, and when the side cover then side cover switch closure that closes, side cover is opened the side cover switch and broken off.
3. according to claims 1 described static negative pressure combined type dedusting blackboard eraser, it is characterized in that: the air suction opening on the described base plate is arranged between two row's hairbrush.
4. according to claims 1 described static negative pressure combined type dedusting blackboard eraser, it is characterized in that: the said element that boosts provides high pressure for the static pole plate.
5. according to claims 1 described static negative pressure combined type dedusting blackboard eraser, it is characterized in that: said static pole plate is provided with by certain regularly arranged aperture, and the diameter of aperture is 2-3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204607123U CN202319617U (en) | 2011-11-19 | 2011-11-19 | Static negative pressure compound dedusting blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204607123U CN202319617U (en) | 2011-11-19 | 2011-11-19 | Static negative pressure compound dedusting blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202319617U true CN202319617U (en) | 2012-07-11 |
Family
ID=46431609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204607123U Expired - Fee Related CN202319617U (en) | 2011-11-19 | 2011-11-19 | Static negative pressure compound dedusting blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202319617U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104309377A (en) * | 2014-11-15 | 2015-01-28 | 贵州大学 | Dust absorbing type blackboard eraser |
| CN105759551A (en) * | 2016-05-13 | 2016-07-13 | 江苏建筑职业技术学院 | Dust removal device for projection curtain and using method |
| CN106042737A (en) * | 2016-08-14 | 2016-10-26 | 薛钦方 | Electrostatic precipitation blackboard eraser |
| CN112223940A (en) * | 2020-09-17 | 2021-01-15 | 杨志文 | Novel blackboard eraser convenient for teachers to use |
-
2011
- 2011-11-19 CN CN2011204607123U patent/CN202319617U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104309377A (en) * | 2014-11-15 | 2015-01-28 | 贵州大学 | Dust absorbing type blackboard eraser |
| CN105759551A (en) * | 2016-05-13 | 2016-07-13 | 江苏建筑职业技术学院 | Dust removal device for projection curtain and using method |
| CN106042737A (en) * | 2016-08-14 | 2016-10-26 | 薛钦方 | Electrostatic precipitation blackboard eraser |
| CN112223940A (en) * | 2020-09-17 | 2021-01-15 | 杨志文 | Novel blackboard eraser convenient for teachers to use |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20141119 |
|
| EXPY | Termination of patent right or utility model |