CN1621244A - Electric blackboard brush with blocked magnets - Google Patents
Electric blackboard brush with blocked magnets Download PDFInfo
- Publication number
- CN1621244A CN1621244A CN 200310109014 CN200310109014A CN1621244A CN 1621244 A CN1621244 A CN 1621244A CN 200310109014 CN200310109014 CN 200310109014 CN 200310109014 A CN200310109014 A CN 200310109014A CN 1621244 A CN1621244 A CN 1621244A
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- Prior art keywords
- electromagnet
- blackboard
- magnet
- black board
- piecemeal
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Abstract
The magnetic electric black board eraser includes driving mechanism comprising gear racks on the upper and/or the lower sides of the black board, driving motor and driving shaft; and magnet on the inside of the driving shaft and with coated erasing part matching with the steel black board. The present invention features that the magnet is electromagnet separated into several blocks controlled with the power switches. The separated electromagnet blocks are powered separately via the power switches to be adsorbed onto the black board and drawn with the motor to erase off the chalk writing. When the whole black board is to be erased, all the electromagnet blocks are powered.
Description
Technical field
The present invention relates to the blackboard pattern, particularly relate to the driven blackboard pattern, belong to school supply and stationery.
Background technology
Blackboard is that tradition also is the stronger realia of practicality, has wooden and the steel blackboard, and wherein the steel blackboard also comprises green plate and blank.Because blackboard adopts chalk to write, a powder flies upward when erasing the board, caused indoor environmental pollution, thereby invented magnetic sheet scrape along lead agency, as Chinese patent ZL02261127.4, this patent has solved without staff directly takes the blackboard pattern to erase the board, and has health, civilization, convenience, characteristics such as laborsaving.But this patented technology is applicable to monoblock blackboard eraser word, only needs to wipe some words on the blackboard if run into, and perhaps only several words just can't be realized.
Summary of the invention
The present invention can only be used for the defective of monoblock blackboard eraser word in order to overcome existing magnetic electric blackboard pattern, but provide a kind of not only monoblock blackboard eraser word but can be arbitrarily can be on blackboard local word, the magnetic piecemeal driven blackboard pattern of only wiping a word or several words of wiping.
The technical scheme of magnetic piecemeal driven blackboard pattern of the present invention is: the tooth bar that is installed in upper and lower or two (left and right) of blackboard, tooth bar and driven by motor are also formed power drive mechanism by the gear of turning cylinder, in the inboard of turning cylinder (by the one side of blackboard) magnet is installed, magnet outer wrapping polishing piece, polishing piece matches with the steel blackboard, it is characterized in that described magnet is the electromagnet (rather than permanent magnet) of piecemeal, each piece electromagnet is controlled by power switch respectively.Its described power switch is press button or remote controller, the relay group of press button or remote controller control, and the relay group connects lead respectively and connects each piece electromagnet.
Technical scheme of the present invention is divided into many by electromagnet, how much being decided according to the actual requirements of piecemeal, general according to the line-spacing setting of writing, at least more than 5, each piece electromagnet connects gauge tap respectively, switch can be with hand push button or remote controller, receive each piece electromagnet through the connecting wire of relay group again, when needing a certain work of electromagnet during use, just make a certain electromagnet energising, this piece electromagnet is just inhaled and is attached on the steel blackboard like this, then drags by motor, just wipes this letter written with chalk.If but monoblock blackboard eraser word, just to all electromagnetic block energisings.
Description of drawings
Fig. 1 is a magnetic piecemeal driven blackboard pattern organigram of the present invention.
The specific embodiment
The invention discloses a kind of magnetic piecemeal driven blackboard pattern, mainly be divided into blackboard pattern part and power drive mechanism and partly form.Transmission mechanism is mounted in the tooth bar 14,2 at top and following or blackboard two of blackboard 1, tooth bar has fixture 9,10,15,16, and the connector 8,13 that has turning cylinder 4 to be connected with tooth bar 14,2, tooth bar is driven by motor 11 and forms power drive mechanism by the gear 12,7 of turning cylinder 4, installed inside magnet at turning cylinder, but magnet is and then turning cylinder rotation not, magnet outer wrapping polishing piece, polishing piece can be made by cloth, fiber crops material etc., polishing piece matches with the steel blackboard, and polishing piece and steel blackboard disengage when not switching on.Motor 11 1 starts, and just drives electromagnet 3 left and right moving by gear 7,12 on the turning cylinder 4 and tooth bar 2,14 engagements.The described magnet of main feature is the electromagnet 3 of piecemeal, is magnetic behind the connection power supply, just inhales on the steel blackboard, and each piece electromagnet 3 is controlled by power switch respectively.Described power switch technical scheme is a lot, can adopt press button 6 or remote controller switch, press button or remote controller switch control relay group 5, the number of elements of relay equates with the piece number of electromagnet, each relay of relay group connects connecting wire respectively and receives a certain block of electromagnet 3, so just connect this relay when needing certain piece electromagnet to contact with the steel blackboard.All work of electromagnet to monoblock blackboard eraser word, are just connected all relay powers if desired.
Claims (2)
1, magnetic piecemeal driven blackboard pattern, be mounted in the tooth bar (14,2) at upper and lower or two of blackboard, tooth bar and motor (11) drive and form power drive mechanism by the gear (12,7) of turning cylinder (4), installed inside magnet at turning cylinder, magnet outer wrapping polishing piece, polishing piece matches with steel blackboard (1), it is characterized in that described magnet is the electromagnet (3) of piecemeal, and each piece electromagnet (3) is controlled by power switch respectively.
2, magnetic piecemeal driven blackboard pattern as claimed in claim 1, it is characterized in that described power switch is press button (16) or remote controller, the relay group (5) of press button or remote controller control, relay group (6) connects lead respectively and connects each piece electromagnet (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101090149A CN100413711C (en) | 2003-11-29 | 2003-11-29 | Electric blackboard brush with blocked magnets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101090149A CN100413711C (en) | 2003-11-29 | 2003-11-29 | Electric blackboard brush with blocked magnets |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1621244A true CN1621244A (en) | 2005-06-01 |
| CN100413711C CN100413711C (en) | 2008-08-27 |
Family
ID=34758804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101090149A Expired - Fee Related CN100413711C (en) | 2003-11-29 | 2003-11-29 | Electric blackboard brush with blocked magnets |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100413711C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106240206A (en) * | 2016-09-12 | 2016-12-21 | 芜湖能盟信息技术有限公司 | A kind of electromagnetic type blackboard eraser |
| CN106346999A (en) * | 2016-11-16 | 2017-01-25 | 东莞职业技术学院 | Automatic blackboard-erasing robot |
| CN107297977A (en) * | 2017-08-04 | 2017-10-27 | 丁玉清 | A kind of blackboard of children education |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3731335A (en) * | 1971-07-07 | 1973-05-08 | B Chrisp | Automatic chalkboard erasing apparatus |
| JPH0564999A (en) * | 1991-09-10 | 1993-03-19 | Matsushita Electric Ind Co Ltd | Electronic board device |
| JPH05270195A (en) * | 1992-03-25 | 1993-10-19 | Nec Corp | Electronic white board |
| JP3386666B2 (en) * | 1995-08-17 | 2003-03-17 | リコーエレメックス株式会社 | Writing board |
| JP2001010292A (en) * | 1999-06-21 | 2001-01-16 | Chang-Ho Jang | Device for wiping blackboard |
| JP3515929B2 (en) * | 1999-10-18 | 2004-04-05 | 株式会社青井黒板製作所 | Elevating blackboard device |
| CN2570051Y (en) * | 2002-10-11 | 2003-09-03 | 杨益民 | Magnetic blackboard eraser |
| CN2579677Y (en) * | 2002-10-28 | 2003-10-15 | 杨益民 | Magnetic blackboard eraser and driving mechanism |
-
2003
- 2003-11-29 CN CNB2003101090149A patent/CN100413711C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106240206A (en) * | 2016-09-12 | 2016-12-21 | 芜湖能盟信息技术有限公司 | A kind of electromagnetic type blackboard eraser |
| CN106346999A (en) * | 2016-11-16 | 2017-01-25 | 东莞职业技术学院 | Automatic blackboard-erasing robot |
| CN106346999B (en) * | 2016-11-16 | 2023-05-09 | 东莞职业技术学院 | Using method of robot capable of automatically wiping blackboard |
| CN107297977A (en) * | 2017-08-04 | 2017-10-27 | 丁玉清 | A kind of blackboard of children education |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100413711C (en) | 2008-08-27 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |