CN102350905A - Circulating self-erasing blackboard - Google Patents
Circulating self-erasing blackboard Download PDFInfo
- Publication number
- CN102350905A CN102350905A CN2011102791507A CN201110279150A CN102350905A CN 102350905 A CN102350905 A CN 102350905A CN 2011102791507 A CN2011102791507 A CN 2011102791507A CN 201110279150 A CN201110279150 A CN 201110279150A CN 102350905 A CN102350905 A CN 102350905A
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- blackboard
- chain
- connecting pin
- transmission system
- rotating frame
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Abstract
The invention relates to a blackboard, and relates to a teaching tool. A circulating self-erasing blackboard mainly comprises a main support, a dustproof cover, a rotary framework, a blackboard, a connecting pin, wiping rag, an adhesive tape and a transmission system, wherein the blackboard consists of a blackboard I and a blackboard II; the transmission system mainly comprises a chain wheel, a rotating wheel, a chain, a handle and a transmission shaft; the rotary framework is hinged to the front of the main support; the blackboard is connected with the chain through the connecting pin; the diameter of the connecting pin is matched with the aperture of a chain section; the wiping rag is connected to the back of the backboard through the adhesive tape; the blackboard is positioned in the rotary framework; and the chain wheel, the rotating wheel and the chain in the transmission system are positioned on two inner side faces of the rotary framework. The circulating self-erasing blackboard is simple in structure, and can erase a large area of chalk handwriting, and the dust can be sealed and stored in a sealed space.
Description
Technical field
The present invention relates to the blackboard of teaching aid, automatic blackboard cleaning in the particularly a kind of process that can utilize two blackboard cyclical-transformation positions, and can not take up the circulating automatic erasing blackboard that amounts of dust is flown upward.
Background technology
Blackboard is being continued to use as the conventional teaching apparatus always; Be because some characteristics in its succinct convenience and the teaching make the teacher like using; Even today that the modern teaching technology is flourishing, blackboard is also still auxiliary when using multimedia teaching uses, Zong particularly aged teacher likes to make blackboard.The defective of traditional blackboard is the physical and mental health that dust from flying influences people, also wants the look round for blackboard eraser sometimes, and the present invention designs in order to solve the traditional blackboard defective just, has better market prospect.
Summary of the invention
In order to address the above problem, the present invention provides a kind of circulating automatic erasing blackboard, through the position of cyclical-transformation up and down of two blackboards, can wipe the chalk writing of a blackboard simultaneously, can not take up amounts of dust again and fly upward.
The scheme that the present invention adopted is:
Circulating automatic erasing blackboard is mainly by main support; Dust cover; Rotating frame; Blackboard; Connecting pin; Wiper; Adhesive tape; Transmission system is formed; Said blackboard is made up of blackboard I and blackboard II; Said transmission system is mainly by sprocket wheel; Runner; Chain; Handle and power transmission shaft constitute; Said dust cover is positioned at said main support back; Said rotating frame is articulated in said main support front; Said blackboard is connected with said chain through said connecting pin; The diameter of said connecting pin and the aperture of said chain section match; Said wiper is connected in the back of said blackboard through said adhesive tape; Said blackboard is positioned at said rotating frame; Said handle is positioned at the said rotating frame outside, the sprocket wheel in the said transmission system; Runner; Chain is positioned on two medial surfaces of said rotating frame.
The invention has the beneficial effects as follows:
Said circulating automatic erasing blackboard simple structure, the facility of going up and down, said wiper is connected in the reasonable in design of said blackboard back with the adhesive tape formula, and the area of the chalk writing of wiping is big, and efficient is high; The dust of wiping can be sealed up for safekeeping in the space of a sealing, has significantly reduced flying upward of dust.
Description of drawings
Further specify below in conjunction with figure of the present invention:
Fig. 1 is said circulating automatic erasing blackboard structural representation;
Fig. 2 is said circulating automatic erasing blackboard outward appearance perspective view;
Fig. 3 is said circulating automatic erasing blackboard front appearance figure;
Fig. 4 is said transmission system enlarged diagram;
Fig. 5 is said blackboard trailing flank enlarged diagram.
Among the figure, 1. main support, 2. dust cover, 3. rotating frame, 4. wiper, 5. handle, 6. blackboard I, 7. blackboard II, 8. power transmission shaft, 9. chain, 10. connecting pin, 11. adhesive tapes.
The specific embodiment
Circulating automatic erasing blackboard structural representation as described in like Fig. 1 being, said rotating frame (3) is articulated in said main support (1) front, and Fig. 1 is said rotating frame (3) sketch map when opening, and said dust cover (2) is positioned at said main support (1) back.
Circulating automatic erasing blackboard outward appearance perspective view as described in like Fig. 2 being; Circulating automatic erasing blackboard front appearance figure as described in like Fig. 3 being; Be the sketch map of said rotating frame (3) when closing; Said blackboard is made up of blackboard I (6) and blackboard II (7); Said blackboard is positioned at said rotating frame (3), and said handle (5) is positioned at said rotating frame (3) outside.
Transmission system enlarged diagram as described in like Fig. 4 being; Said transmission system is mainly by sprocket wheel; Runner; Chain; Handle and power transmission shaft constitute; Sprocket wheel in the said transmission system; Runner; Chain is positioned on two medial surfaces of said rotating frame; The said transmission system that connects the blackboard both sides by said power transmission shaft (8); When rotation said handle (5); Make the said transmission system synchronous operation of both sides through said power transmission shaft (8); Said blackboard is moved up and down reposefully; Said blackboard is connected with said chain (9) through said connecting pin (10); The aperture of the diameter of said connecting pin (10) and said chain (9) joint matches, said chain (9) circulation sealing.
Blackboard trailing flank enlarged diagram as described in like Fig. 5 being, said connecting pin (10) is positioned at the side of blackboard, and said wiper (4) is connected in the back of said blackboard through said adhesive tape.
During use; Rotate said handle (5); Make said chain (9) synchronous circulation of both sides rotate through said power transmission shaft (8); Drive said connecting pin (10) and do the turnover motion; Said blackboard is also done the turnover motion thereupon; In the time of always can working as said blackboard I and arrive peak, said blackboard II arrives minimum point, and at this moment said blackboard displays comprehensively and supplies to use.
Expired need wipe writing the time when blackboard uses, to have rotated said handle, the action that at this moment said blackboard I and blackboard II have front and back to shift one's position, this be because said connecting pin with the result of said chain rotation, the distance of said front and back conversion is with the diameter of sprocket wheel.Be rotated further said handle; After said blackboard I and blackboard II are overlapping; Utilize the said wiper of said blackboard back the writing on another piece blackboard is wiped or to be adsorbed, the gross thickness of said blackboard and wiper should satisfy said blackboard I and can closely contact when overlapping with blackboard II.The dust of being wiped is closed between blackboard back and the dust cover mostly, seldom can be disseminated to the outside, has played the effect of anti-flying dust.
Said handle can substitute with direct current generator, accomplishes above-mentioned manual work through the crawl direct current generator, can reduce labor intensity, and efficient is also higher.When needs are changed said wiper, open said rotating frame, can change together with said adhesive tape, cost is lower.
Claims (2)
1. circulating automatic erasing blackboard; Mainly form by main support, dust cover, rotating frame, blackboard, connecting pin, wiper, adhesive tape, transmission system; Said blackboard is made up of blackboard I and blackboard II; Said transmission system mainly is made up of sprocket wheel, runner, chain, handle and power transmission shaft; It is characterized in that: said rotating frame is articulated in said main support front; Said blackboard is connected with said chain through said connecting pin, and the diameter of said connecting pin and the aperture of said chain section match.
2. circulating automatic erasing blackboard according to claim 1; It is characterized in that: said wiper is connected in the back of said blackboard through said adhesive tape; Said blackboard is positioned at said rotating frame, and the sprocket wheel in the said transmission system, runner, chain are positioned on two medial surfaces of said rotating frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102791507A CN102350905A (en) | 2011-09-07 | 2011-09-07 | Circulating self-erasing blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102791507A CN102350905A (en) | 2011-09-07 | 2011-09-07 | Circulating self-erasing blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102350905A true CN102350905A (en) | 2012-02-15 |
Family
ID=45574597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102791507A Pending CN102350905A (en) | 2011-09-07 | 2011-09-07 | Circulating self-erasing blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102350905A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102529519A (en) * | 2012-03-08 | 2012-07-04 | 罗奕永 | Circulation type double-layer self-wiping blackboard |
| CN103754025A (en) * | 2013-12-29 | 2014-04-30 | 刘艳丰 | Circulatory alternative cleaning-free dust-free blackboard |
| CN110667286A (en) * | 2019-11-14 | 2020-01-10 | 刘楚香 | Independent lifting blackboard |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2855772Y (en) * | 2005-11-30 | 2007-01-10 | 许法典 | Environmental protection type chalk-dust free black-board |
| CN101168338A (en) * | 2006-10-25 | 2008-04-30 | 郭佳松 | Lamination blackboard |
| CN201538151U (en) * | 2009-09-29 | 2010-08-04 | 王洋 | Self-cleaning blackboard |
| CN201849155U (en) * | 2010-11-10 | 2011-06-01 | 张永恒 | Blackboard |
| CN202213381U (en) * | 2011-09-07 | 2012-05-09 | 金华职业技术学院 | Circulation type self-wiping blackboard |
-
2011
- 2011-09-07 CN CN2011102791507A patent/CN102350905A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2855772Y (en) * | 2005-11-30 | 2007-01-10 | 许法典 | Environmental protection type chalk-dust free black-board |
| CN101168338A (en) * | 2006-10-25 | 2008-04-30 | 郭佳松 | Lamination blackboard |
| CN201538151U (en) * | 2009-09-29 | 2010-08-04 | 王洋 | Self-cleaning blackboard |
| CN201849155U (en) * | 2010-11-10 | 2011-06-01 | 张永恒 | Blackboard |
| CN202213381U (en) * | 2011-09-07 | 2012-05-09 | 金华职业技术学院 | Circulation type self-wiping blackboard |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102529519A (en) * | 2012-03-08 | 2012-07-04 | 罗奕永 | Circulation type double-layer self-wiping blackboard |
| CN103754025A (en) * | 2013-12-29 | 2014-04-30 | 刘艳丰 | Circulatory alternative cleaning-free dust-free blackboard |
| CN110667286A (en) * | 2019-11-14 | 2020-01-10 | 刘楚香 | Independent lifting blackboard |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120215 |