CN206030901U - Electrostatic dust -absorbing blackboard eraser - Google Patents
Electrostatic dust -absorbing blackboard eraser Download PDFInfo
- Publication number
- CN206030901U CN206030901U CN201620874062.XU CN201620874062U CN206030901U CN 206030901 U CN206030901 U CN 206030901U CN 201620874062 U CN201620874062 U CN 201620874062U CN 206030901 U CN206030901 U CN 206030901U
- Authority
- CN
- China
- Prior art keywords
- dust collection
- dust
- shell
- top surface
- plate
- 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.)
- Expired - Fee Related
Links
Landscapes
- Electrostatic Separation (AREA)
Abstract
The utility model discloses an electrostatic dust -absorbing blackboard eraser, it includes the open shell of top surface, shell cavity is equipped with the open dust collection tank of top surface, dust collection tank 's the top surface open surface and the top surface open surface of shell flush, dust collection tank 's top surface is stamped the porous negative plate with the dust collection tank block, dust collection tank 's bottom plate is the anode plate, be equipped with the blackboard cloth that is used for cleaning the blackboard on the contact surface in the porous negative plate and the external world, shell cavity still is equipped with the power, the positive pole of power passes through the wire and is connected with the anode plate, the negative pole of power is connected with the piezo -resistor who locates shell cavity through the wire, piezo -resistor passes through wire and porous cathode plate connecting. The utility model discloses solve the problem that the chalk dust flew upward when blacking the board effectively everywhere, can successfully improve the classroom environment, be favorable to teachers and students healthy.
Description
Technical field
This utility model is related to a kind of dust-sucking blackboard eraser.
Background technology
At present, in teaching, part teacher still is carried out writing teaching on blackboard using chalk when giving lessons, often
When blackboard is write it is full when will be cleared up using blackboard eraser, blackboard eraser produces many chalk dusts when erasing the board, and flies away everywhere
Chalk dust is not only easily caused Faculty and Students and easily sucks more chalk dust and cause pulmonary disease, and affects health.Though
So now with many dust-sucking blackboard erasers, but only make use of electrostatic principle, some complex structures, some uses mostly
Life-span is too short, some to there is dust collection effect on driving birds is not good.Therefore, a kind of simple structure, dust collection effect are researched and developed good
Dust-sucking blackboard eraser it is very meaningful.
Utility model content
This utility model is intended to overcome the deficiencies in the prior art, there is provided a kind of dust-sucking blackboard eraser.
In order to achieve the above object, the technical scheme of this utility model offer is：
The dust-sucking blackboard eraser includes the open shell of top surface；The shell inner cavity is provided with the open dust of top surface and receives
Collection groove；The top surface open face of the dust collection groove is flushed with the top surface open face of shell；The top surface lid of the dust collection groove
There is the porous cathode plate engaged with dust collection groove；The base plate of the dust collection groove is positive plate；The porous cathode plate with
Extraneous contact surface is provided with the blackboard cloth for blackboard wiping；The shell inner cavity is additionally provided with power supply；The positive pole of the power supply
It is connected with positive plate by wire；The negative pole of the power supply is connected with the varistor located at shell inner cavity by wire；It is described
Varistor is connected with porous cathode plate by wire.
Wherein, the power supply is constituted by the battery case located at shell inner cavity and loaded on the battery in battery case.The power supply
Spring is provided with the gap between dust collection trough floor；Gap between the varistor and dust collection trough floor is provided with
Spring.Gap is left between the dust collection groove and shell.
The utility model is described in further detail below：
This utility model devises a circuit in blackboard eraser enclosure, the electric routing power, varistor, wire,
Minus plate and positive plate composition.The work surface that blackboard eraser releases blackboard is modified to into one and porous cathode plate, and it is cloudy in porous
Different blackboard cloths are set on pole plate.A collecting tank that can accommodate chalk dust, the base plate of collecting tank is designed inside the housing
It is designed to positive plate, the top surface of collecting tank is open, and is closed with porous cathode board（Porous cathode plate just covers collection
Groove）, and when collecting tank collects more dust, porous cathode plate can be opened, so as to be cleaned to collecting tank.
When using this utility model blackboard eraser, the resistance of the pressure change varistor produced during due to blackboard wiping
Value, makes circuit clear and coherent；Dust is adsorbed onto porous cathode plate by electrostatic adsorption first, now, according to the original of charge balance
Reason, dust on porous cathode plate obtain electronics, into electronegativity, form electric field between yin, yang pole plate, and then dust passes through porous
The aperture of minus plate is entered in dust collection groove, and eventually arrives at positive plate.
In addition, certain interval can be left between collecting tank and shell, relative can slide, while can also be by slip
To control varistor, the pick-up performance of blackboard eraser is further improved.
This utility model solves the absorption problem of chalk dust using electrostatic absorption principle, makes dust not fly upward surrounding
In air；In combination with electric field force principle by dust collection in collecting tank, realize centralized collection and the cleaning of dust, so also
The problem of the excessive dust of surface adsorption and the reduction of caused minus plate adsorption efficiency can be avoided, and because minus plate is detachable
, it is more convenient the cleaning to dust collection groove.
In a word, this utility model efficiently solves the problem that chalk dust when erasing the board is flown upward everywhere, successfully can improve
Classroom environment, is conducive to teachers and students' health.
Description of the drawings
Fig. 1 is this utility model structural representation.
In figure：1st, shell；2nd, dust collection groove；3rd, porous cathode plate；4th, positive plate；5th, blackboard cloth；6th, power supply；7th, it is pressure-sensitive
Resistance；8th, spring.
Specific embodiment
Referring to Fig. 1, the dust-sucking blackboard eraser includes the open shell 1 of top surface；1 inner chamber of the shell is provided with top surface and opens
The dust collection groove 2 of mouth；The top surface open face of the dust collection groove 2 is flushed with the top surface open face of shell 1；The dust is received
The top surface of collection groove 2 is stamped the porous cathode plate 3 engaged with dust collection groove 2；The base plate of the dust collection groove 2 is positive plate 4；
The porous cathode plate 3 is provided with the blackboard cloth 5 for blackboard wiping with extraneous contact surface；1 inner chamber of the shell is additionally provided with
Power supply 6；The positive pole of the power supply 6 is connected with positive plate 4 by wire；The negative pole of the power supply 6 is by wire and is located at shell 1
The varistor 7 of inner chamber connects；The varistor 7 is connected with porous cathode plate 3 by wire.
Wherein, the power supply 6 is constituted by the battery case located at 1 inner chamber of shell and loaded on the battery in battery case.The electricity
Gap between 2 base plate of source 6 and dust collection groove is provided with spring 8；Between 2 base plate of the varistor 7 and dust collection groove
Gap is provided with spring 8.Gap is left between the dust collection groove 2 and shell 1.
Claims (4)
1. a kind of dust-sucking blackboard eraser, it is characterised in that the blackboard eraser includes the open shell of top surface（1）；The shell
（1）Inner chamber is provided with the open dust collection groove of top surface（2）；The dust collection groove（2）Top surface open face and shell（1）Top
Face open face is flushed；The dust collection groove（2）Top surface be stamped and dust collection groove（2）The porous cathode plate of engaging（3）；Institute
State dust collection groove（2）Base plate be positive plate（4）；The porous cathode plate（3）It is provided with for wiping with extraneous contact surface
Wipe the blackboard cloth of blackboard（5）；The shell（1）Inner chamber is additionally provided with power supply（6）；The power supply（6）Positive pole by wire with sun
Pole plate（4）Connection；The power supply（6）Negative pole by wire be located at shell（1）The varistor of inner chamber（7）Connection；It is described
Varistor（7）By wire and porous cathode plate（3）Connection.
2. dust-sucking blackboard eraser as claimed in claim 1, it is characterised in that the power supply（6）By located at shell（1）Inner chamber
Battery case and loaded in battery case battery constitute.
3. dust-sucking blackboard eraser as claimed in claim 1, it is characterised in that the power supply（6）With dust collection groove（2）Bottom
Gap between plate is provided with spring（8）；The varistor（7）With dust collection groove（2）Gap between base plate is provided with spring
（8）.
4. dust-sucking blackboard eraser as claimed in claim 1, it is characterised in that the dust collection groove（2）With shell（1）It
Between leave gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620874062.XU CN206030901U (en) | 2016-08-14 | 2016-08-14 | Electrostatic dust -absorbing blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620874062.XU CN206030901U (en) | 2016-08-14 | 2016-08-14 | Electrostatic dust -absorbing blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206030901U true CN206030901U (en) | 2017-03-22 |
Family
ID=58308894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620874062.XU Expired - Fee Related CN206030901U (en) | 2016-08-14 | 2016-08-14 | Electrostatic dust -absorbing blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206030901U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112590433A (en) * | 2020-12-11 | 2021-04-02 | 安徽文香信息技术有限公司 | Dust-proof blackboard eraser for intelligent classroom and control system thereof |
-
2016
- 2016-08-14 CN CN201620874062.XU patent/CN206030901U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112590433A (en) * | 2020-12-11 | 2021-04-02 | 安徽文香信息技术有限公司 | Dust-proof blackboard eraser for intelligent classroom and control system thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202463379U (en) | Dust-absorption blackboard eraser | |
| CN106042737A (en) | Electrostatic precipitation blackboard eraser | |
| CN206870699U (en) | A kind of Jing Yin dustless chargeable blackboard eraser | |
| CN206030901U (en) | Electrostatic dust -absorbing blackboard eraser | |
| CN203210961U (en) | Multifunctional blackboard eraser | |
| CN201214350Y (en) | Energy source-free automatic dust-absorption eraser | |
| CN202935050U (en) | Novel dustproof blackboard eraser | |
| CN105835577A (en) | Environment-friendly backboard eraser | |
| CN208530107U (en) | Electrostatic precipitation blackboard eraser | |
| CN204451767U (en) | A kind of Multifunctional dust collecting eraser | |
| CN202293947U (en) | Rechargeable dust-absorption chalk brush | |
| CN205112786U (en) | Multifunctional blackboard eraser | |
| CN202271734U (en) | Electronic blackboard eraser | |
| CN205033815U (en) | Environment -friendly blackboard eraser | |
| CN201552925U (en) | Dust collecting blackboard eraser without rope | |
| CN203126302U (en) | Dust-removing eraser | |
| CN206186628U (en) | Blackboard eraser with automatic dust removal function | |
| CN207644028U (en) | A kind of efficient electric blackboard eraser | |
| CN206551764U (en) | A kind of automatic dust-absorption eraser | |
| CN2902754Y (en) | Electric dust collecting blackboard eraser | |
| CN214355225U (en) | Electrostatic dust absorption environment-friendly blackboard eraser | |
| CN108340716A (en) | A kind of teaching Special dust sucking formula eraser | |
| CN204955866U (en) | Electric dust -absorbing blackboard eraser | |
| CN202557135U (en) | Dust-collecting blackboard eraser | |
| CN201970738U (en) | Automatic dust suction blackboard eraser |
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: 20170322 Termination date: 20180814 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |