CN203666211U - Static electricity blackboard eraser - Google Patents
Static electricity blackboard eraser Download PDFInfo
- Publication number
- CN203666211U CN203666211U CN201320858993.7U CN201320858993U CN203666211U CN 203666211 U CN203666211 U CN 203666211U CN 201320858993 U CN201320858993 U CN 201320858993U CN 203666211 U CN203666211 U CN 203666211U
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- CN
- China
- Prior art keywords
- dust
- battery
- accommodation box
- blackboard eraser
- static
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Abstract
The utility model provides a static electricity blackboard eraser which comprises a shell body, an erasing plate, a dust containing box, an air extracting device, a static electricity friction body, an elastic connecting piece, a battery containing box, a battery and a switch. The dust containing box is arranged in the shell body. The dust containing box is provided with the air extracting hole. The air extracting device is arranged in the shell body and is placed on the upper portion of the dust containing box. The air extracting device is connected with the air extracting hole. The static electricity friction body is arranged outside the bottom of the shell body and is provided with a ventilation hole. The elastic connecting piece is connected with the erasing plate and the static electricity friction body in an elastic mode. The battery containing box is arranged on the shell body. The battery is placed in the battery containing box and is electrically connected with the air extracting device. The switch is arranged on the battery containing box and is electrically connected with the battery.
Description
Technical field
The utility model relates to a kind of dust exhaust apparatus, relates in particular to a kind of static blackboard eraser.
Background technology
Blackboard eraser is a kind of educational aid of indispensability.The blackboard eraser surface using at present has felt, and felt and blackboard mantle friction make the formation dust that comes off of the letter written with chalk on blackboard.Wherein a part of dust drops in the dust storage tank of blackboard bottom, and another part is along with air spreads in classroom.Be diffused in airborne dust along with student and teacher's respiratory tract enters lung, have a strong impact on the healthy of academics and students.
In addition, the dust dropping in the dust storage tank of blackboard bottom is also easy to cause dust from flying when clean, and dust in groove is also difficult to totally clean.
Utility model content
The utility model, in order to overcome the deficiencies in the prior art, provides a kind of static blackboard eraser.
To achieve these goals, the utility model provides a kind of static blackboard eraser, comprises housing, wiping board, dust accommodation box, air extractor, static friction piece, Flexible Connector, battery accommodating box, battery and switch.Dust accommodation box is arranged in housing, and dust accommodation box has aspirating hole.Air extractor is arranged in housing, is positioned at the top of dust accommodation box, and air extractor is connected with aspirating hole.Static friction piece is arranged at outside the bottom of housing, and static friction piece has passage.Flexible Connector elasticity connects wiping board and static friction piece.Battery accommodating box is arranged at housing.Battery is positioned in battery accommodating box, and is electrically connected with air extractor.Switch is arranged at electromagnetism accommodation box, and is electrically connected with battery.
In the utility model one embodiment, dust accommodation box is fixedly connected with housing by track.
In the utility model one embodiment, on dust accommodation box, be provided with handle.
In the utility model one embodiment, on battery accommodating box, be provided with solar panel, solar panel and air extractor are electrically connected.
In sum, the utility model compared with prior art, have the following advantages: by static friction piece and wiping board are set, and be connected by Flexible Connector between wiping board and static friction piece, the stressed contraction of Flexible Connector is in contact with one another wiping board and static friction piece.The wiping board being in contact with one another and static friction piece along with blackboard eraser and seriticker up and down or side-to-side movement and produce friction.Thereby friction makes the dust coming off on wiping board static electrification absorption blackboard.By air extractor is set, it can be evacuated to the dust adsorbing on wiping board in dust accommodation box by the passage on static friction piece.Avoid the problem of traditional blackboard sassafras dust from flying in the time erasing the board.
In addition, be fixedly connected with housing by track by dust accommodation box is set, and be provided with handle on dust accommodation box.User can regularly carry out dust cleaning by the pull-out of dust accommodation box, very easy to use.
For above-mentioned and other objects, features and advantages of the present utility model can be become apparent, preferred embodiment cited below particularly, and coordinate accompanying drawing, be described in detail below.
Brief description of the drawings
Figure 1 shows that the structural representation of the static blackboard eraser that the utility model one embodiment provides.
Detailed description of the invention
As shown in Figure 1, the utility model provides a kind of static blackboard eraser, comprises housing 1, wiping board 2, dust accommodation box 3, air extractor 4, static friction piece 5, Flexible Connector 6, battery accommodating box 7, battery 8 and switch 9.Dust accommodation box 3 is arranged in housing 1, and dust accommodation box 3 has aspirating hole 301.Air extractor 4 is arranged in housing 1, is positioned at the top of dust accommodation box 3, and air extractor 4 is connected with aspirating hole 301.Static friction piece 5 is arranged at outside the bottom of housing 1, and static friction piece 5 has passage 501.Flexible Connector 6 connects wiping board 2 and static friction piece 5.Battery accommodating box 7 is arranged at housing 1.Battery 8 is positioned in battery accommodating box 7, and is electrically connected with air extractor 4.Switch 9 is arranged at electromagnetism accommodation box 7, and is electrically connected with battery 8.In the present embodiment, Flexible Connector 6 is spring, and air extractor 4 is aspiration pump.But the utility model is not limited in any way this.
When concrete use, elasticity connects 6 and shunk by user's hand pressure, and wiping board 2 and static friction piece 5 are in contact with one another.And along with blackboard eraser and seriticker up and down or side-to-side movement, wiping board 2 and static friction piece 5 also do corresponding fricting movement.Thereby friction makes the dust coming off on wiping board 2 static electrification absorption blackboards.Absorption dust is drawn in dust accommodation box 3 by air extractor 4.Further, for preventing that dust from flying upward from the side of elasticity connection 6, increases telescopic sponge at the sidewall of elasticity connection 6 and stop.
In the present embodiment, dust accommodation box 3 be fixedly connected with housing 1 by track and dust accommodation box 3 on be provided with handle 302.User can regularly carry out dust cleaning by handle 302 by 3 pull-outs of dust accommodation box, very easy to use, simple.
In the present embodiment, on battery accommodating box 7, be provided with solar panel 10, solar panel 10 is electrically connected with air extractor 4.In the time of fine day, user can be positioned at static blackboard eraser under the sun, and it is that air extractor 4 is powered that solar panel 10 can be converted to solar energy electric energy.Solar cell 10 can use by recharge, the use cost of greatly having saved user.
In sum, by static friction piece 5 and wiping board 2 are set, and be connected by Flexible Connector 6 between the two, the stressed contraction of Flexible Connector 6 is in contact with one another wiping board 2 and static friction piece 5.The wiping board 2 being in contact with one another and static friction piece 5 along with blackboard eraser and seriticker up and down or side-to-side movement and produce friction.Thereby friction makes the dust coming off on wiping board 2 static electrification absorption blackboards.By air extractor 4 is set, it can be evacuated to the dust of absorption on wiping board 2 in dust accommodation box 3 by the passage 501 on static friction piece 5.Avoid the problem of traditional blackboard sassafras dust from flying in the time erasing the board.
In addition, be fixedly connected with housing 1 by track by dust accommodation box 3 is set, and be provided with handle 302 on dust accommodation box 3.User can regularly carry out dust cleaning by 3 pull-outs of dust accommodation box, very easy to use.
Although the utility model is disclosed as above by preferred embodiment; but not in order to limit the utility model; anyly know this skill person; not departing from spirit and scope of the present utility model; can do a little change and retouching, therefore protection domain of the present utility model is when being as the criterion depending on claims scope required for protection.
Claims (4)
1. a static blackboard eraser, its spy is being, is comprising:
Housing;
Wiping board;
Dust accommodation box, is arranged in described housing, and described dust accommodation box has aspirating hole;
Air extractor, is arranged in described housing, is positioned at the top of described dust accommodation box, and described air extractor is connected with described aspirating hole;
Static friction piece, is arranged at outside the bottom of described housing, and described static friction piece has passage;
Flexible Connector, connects described wiping board and static friction piece;
Battery accommodating box, is arranged at described housing;
Battery, is positioned in described battery accommodating box, and is electrically connected with described air extractor;
Switch, is arranged at described electromagnetism accommodation box, and is electrically connected with described battery.
2. static blackboard eraser according to claim 1, is characterized in that, described dust accommodation box is fixedly connected with described housing by track.
3. static blackboard eraser according to claim 1 and 2, is characterized in that, on described dust accommodation box, is provided with handle.
4. static blackboard eraser according to claim 1, is characterized in that, on described battery accommodating box, is provided with solar panel, and described solar panel and described air extractor are electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320858993.7U CN203666211U (en) | 2013-12-20 | 2013-12-20 | Static electricity blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320858993.7U CN203666211U (en) | 2013-12-20 | 2013-12-20 | Static electricity blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203666211U true CN203666211U (en) | 2014-06-25 |
Family
ID=50962539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320858993.7U Expired - Fee Related CN203666211U (en) | 2013-12-20 | 2013-12-20 | Static electricity blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203666211U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103617A (en) * | 2019-04-17 | 2019-08-09 | 江苏大学 | A kind of electrostatic dedusting blackboard eraser that can be recovered energy |
| CN110143088A (en) * | 2019-05-21 | 2019-08-20 | 高杉逸 | A kind of novel blackboard eraser |
-
2013
- 2013-12-20 CN CN201320858993.7U patent/CN203666211U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103617A (en) * | 2019-04-17 | 2019-08-09 | 江苏大学 | A kind of electrostatic dedusting blackboard eraser that can be recovered energy |
| CN110143088A (en) * | 2019-05-21 | 2019-08-20 | 高杉逸 | A kind of novel blackboard eraser |
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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: 20140625 Termination date: 20141220 |
|
| EXPY | Termination of patent right or utility model |