CN200992069Y - Self-erasing type blackboard - Google Patents
Self-erasing type blackboard Download PDFInfo
- Publication number
- CN200992069Y CN200992069Y CN 200620162489 CN200620162489U CN200992069Y CN 200992069 Y CN200992069 Y CN 200992069Y CN 200620162489 CN200620162489 CN 200620162489 CN 200620162489 U CN200620162489 U CN 200620162489U CN 200992069 Y CN200992069 Y CN 200992069Y
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- CN
- China
- Prior art keywords
- blackboard
- gear
- self
- electric motor
- variable speed
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- 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
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Abstract
The utility model discloses a self-clean blackboard, comprising a blackboard, an electric motor, a control circuit and a power supply. The blackboard is a flat surface composed of a plurality of normal triangular prisms that are disposed closely up and down; a synchronous gear that is interlocked with the synchronous belt is arranged at one end of every triangular prism; one of the synchronous gear is interlocked with the driving gear; a rolling brush is arranged at one side of the back of the blackboard; a coaxial gear is arranged respectively on the upper and lower end of the rolling brush. The upper and lower gears interlock respectively with a rack that is placed horizontally. A guide way is arranged on the upper part of the blackboard, and a variable speed electric motor crate is arranged on the chute of the guide way. The shaft of the variable speed electric motor crate is connected with the upper gear and is coaxial with the rolling brush; the electric motor is connected with the control circuit. The self-clean blackboard designed based on the above-mentioned technique proposal has the advantages of simple structure and convenient operation, which completely changes the blackboard cleaning way from manual mode to automatic mode, and reduces the powder dust pollution.
Description
Technical field
The utility model relates to a kind of blackboard, and particularly a kind of self-erasing type blackboard belongs to the teaching aid class.
Background technology
Entered multimedia era, computer technology is widely used in teaching.Someone says that blackboard will withdraw from historical stage as teaching aid.As if yet problem is not so simple, and most widely used teaching aid remains chalk and blackboard in teaching so far, and multimedia has been the effect that replenishes.This is not because teachers are conservative, but because blackboard has the irreplaceable characteristics of multimedia.As the randomness and the instantaneity of blackboard, its intuitive, flexibility, it can show teacher's individual character to greatest extent, can make that the classroom is lively, passion overflows.Also can not leave the classroom at the foreseeable future blackboard.But erase the board dirty and tired and allow the people unhappy really to the pollution of environment.
Therefore researching and developing a kind of self-erasing type blackboard simple in structure, easy to use is relevant field problem demanding prompt solution.
The utility model content
Goal of the invention of the present utility model aims to provide a kind of self-erasing type blackboard simple in structure, easy to use, flies upward the problem that dust pollution is serious to solve existing blackboard dirt ash when the wiping.
Goal of the invention of the present utility model can be achieved through the following technical solutions.
A kind of self-erasing type blackboard, comprise blackboard, motor, control circuit and power supply, described blackboard is that some regular triangular prisms closely rearrange a plane up and down, at an end of triangular prism one synchronous gear is set respectively, the synchromesh gear of each triangular prism and band clamping synchronously; Synchromesh gear and driven wheel interlock with one of them triangular prism; One side is provided with a round brush at the back side of blackboard, and the upper and lower side of round brush respectively is provided with in-line gears, cog and lower gear respectively with the tooth bar interlock of a horizontal positioned; Also be provided with a guide rail above blackboard, place a variable speed electric motors, particularly case on the chute of guide rail, the rotating shaft of variable speed electric motors, particularly case is connected and coaxial with round brush with cogging; Motor is connected with control circuit with power supply.
Can some pinch rollers be set at the synchronous band outer surface at the blackboard back side, to guarantee that band closely is connected with synchromesh gear synchronously.
Driven wheel drives the synchromesh gear rotation when motor starts, and under the effect of being with synchronously, some triangular prisms will rotate synchronously.Control circuit can allow them rest on the state that needs, and can write when becoming a plane in front; Can erase the board when becoming a plane in the back.
When erasing the board, behind the connection motor, the last lower gear and the round brush that are fixed on the axle will rotate together.Simultaneously, because last lower gear all abuts against on the tooth bar, gear can be walked along tooth bar.Translation can take place in the whole mechanism that erases the board that comprises motor gear box, and slide rail has played support motor and kept direction.Like this, round brush will paste blackboard surface and rotate in translation, finishes the action that erases the board.
The self-erasing type blackboard that designs by technical solutions of the utility model, have advantage simple in structure, easy to use, it is automatic from manually becoming thoroughly will to erase the board, and the whole mechanism that erases the board is the back side at blackboard, and seal, therefore significantly reduced dust pollution.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Among the figure: 1-triangular prism 2-synchromesh gear 3-is with 4-driven wheel 5-round brush synchronously
The 51-52-lower gear 6-tooth bar that cogs
7-guide rail 8-variable speed electric motors, particularly case 9-pinch roller
The specific embodiment
Further set forth architectural feature of the present utility model below in conjunction with accompanying drawing and embodiment.
Self-erasing type blackboard as shown in Figure 1, comprise blackboard, motor, control circuit and power supply, described blackboard is that six regular triangular prisms 1 closely rearrange a plane up and down, at an end of triangular prism 1 a synchronous gear 2 is set respectively, and the synchromesh gear 2 and of each triangular prism 1 is with 3 clampings synchronously; Synchromesh gear 2 and driven wheel 4 interlocks with a bottom triangular prism 1; One side is provided with a round brush 5 at the back side of blackboard, and the upper and lower side of round brush 5 respectively is provided with in-line gears, cog 51 and lower gear 52 respectively with tooth bar 6 interlocks of a horizontal positioned; Also be provided with a guide rail 7 above blackboard, place a variable speed electric motors, particularly case 8 on the chute of guide rail 7, the rotating shaft of variable speed electric motors, particularly case 8 51 is connected and coaxial with round brush with cogging; 3 outer surfaces of being with synchronously at the blackboard back side are provided with two pinch rollers 9.
During use, connect power supply, electric motor starting, driven wheel drives synchromesh gear and rotates, and under the effect of being with synchronously, six triangular prisms will rotate synchronously.Control circuit can allow them rest on the state that needs, and can write when becoming a plane in front; Can erase the board when becoming a plane in the back.
When erasing the board, behind the connection motor, the last lower gear and the round brush that are fixed on the axle will rotate together.Simultaneously, because last lower gear all abuts against on the tooth bar, gear can be walked along tooth bar.Translation can take place in the whole mechanism that erases the board that comprises motor gear box, and slide rail has played support motor and kept direction.Like this, round brush will paste blackboard surface and rotate in translation, finishes the action that erases the board.
Claims (2)
1, self-erasing type blackboard, comprise blackboard, motor, control circuit and power supply, it is characterized in that: described blackboard is the plane that some regular triangular prisms (1) closely rearrange up and down, end at triangular prism (1) respectively is provided with a synchronous gear (2), the synchromesh gear (2) of each triangular prism (1) and band (a 3) clamping synchronously; Synchromesh gear (2) and driven wheel (4) interlock with one of them triangular prism (1); One side is provided with a round brush (5) at the back side of blackboard, and the upper and lower side of round brush (5) respectively is provided with in-line gears, cog (51) and lower gear (52) respectively with tooth bar (6) interlock of a horizontal positioned; Also be provided with a guide rail (7) above blackboard, place a variable speed electric motors, particularly case (8) on the chute of guide rail (7), the rotating shaft of variable speed electric motors, particularly case (8) is connected with cog (51) and is coaxial with round brush; Synchronous band (3) outer surface at the blackboard back side is provided with two pinch rollers (9).
2, self-erasing type blackboard according to claim 1 is characterized in that: synchronous band (3) outer surface at the blackboard back side is provided with some pinch rollers (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620162489 CN200992069Y (en) | 2006-12-29 | 2006-12-29 | Self-erasing type blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620162489 CN200992069Y (en) | 2006-12-29 | 2006-12-29 | Self-erasing type blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200992069Y true CN200992069Y (en) | 2007-12-19 |
Family
ID=38945145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620162489 Expired - Fee Related CN200992069Y (en) | 2006-12-29 | 2006-12-29 | Self-erasing type blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200992069Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102963172A (en) * | 2012-12-10 | 2013-03-13 | 黄霞 | Blackboard device convenient to clean |
| CN104070892A (en) * | 2014-06-27 | 2014-10-01 | 华东交通大学 | Rotation type triangular prism intelligence blackboard based on electronic control |
| CN106142928A (en) * | 2016-09-23 | 2016-11-23 | 杭州富阳尚科科技有限公司 | A kind of vertical Wiping-free blackboard imparted knowledge to students |
| CN110001243A (en) * | 2019-04-23 | 2019-07-12 | 长沙宁湖机械设备有限公司 | A kind of three face rotary type dust-free blackboards |
-
2006
- 2006-12-29 CN CN 200620162489 patent/CN200992069Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102963172A (en) * | 2012-12-10 | 2013-03-13 | 黄霞 | Blackboard device convenient to clean |
| CN104070892A (en) * | 2014-06-27 | 2014-10-01 | 华东交通大学 | Rotation type triangular prism intelligence blackboard based on electronic control |
| CN106142928A (en) * | 2016-09-23 | 2016-11-23 | 杭州富阳尚科科技有限公司 | A kind of vertical Wiping-free blackboard imparted knowledge to students |
| CN106142928B (en) * | 2016-09-23 | 2018-05-25 | 杭州富阳尚科科技有限公司 | A kind of vertical Wiping-free blackboard of teaching |
| CN110001243A (en) * | 2019-04-23 | 2019-07-12 | 长沙宁湖机械设备有限公司 | A kind of three face rotary type dust-free blackboards |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |