CN204998204U - Automatic turning blackboard - Google Patents
Automatic turning blackboard Download PDFInfo
- Publication number
- CN204998204U CN204998204U CN201520767861.2U CN201520767861U CN204998204U CN 204998204 U CN204998204 U CN 204998204U CN 201520767861 U CN201520767861 U CN 201520767861U CN 204998204 U CN204998204 U CN 204998204U
- Authority
- CN
- China
- Prior art keywords
- blackboard
- frame
- bar
- driven gear
- automatic turning
- 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
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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model provides a central symmetry figure that automatic turning blackboard is equipped with the frame around, is equipped with a plurality of vertical blackboard strips in the frame, and every blackboard strip center is equipped with the pivot, is equipped with two rectangular limits and two billet limits around the pivot, and rectangular length of side degree is greater than billet length of side degree, and blackboard strip cross sectional shape uses the pivot as the center. Being equipped with the upset motor in the frame of side, being equipped with the driving gear on the upset motor shaft, the top of every blackboard strip is equipped with driven gear, intermeshing between driving gear and driven gear and adjacent driven gear. When the driving gear drives the driven gear rotation, the rotation in the opposite direction of two adjacent blackboard strips.
Description
Technical field
The utility model relates to a kind of instructional device, specifically a kind of automatic turning blackboard.
Background technology
Blackboard is conventional educational aid, and blackboard conventional mostly at present is the fixed blackboard of monolithic, such blackboard writing limited area, write full after must wipe partial content and could continue use, and its erase process mostly is artificial erasing, and physical demands is large, chalk powder flies upward everywhere, unhealthful.Current, also there are some reversible blackboards, as convertible in one from erasing blackboard (CN204367667U), disclose a kind of technical scheme, this technical scheme can realize blackboard upset, increase write area, but Problems existing cannot realize seamless link between described adjacent small blackboard.In this technical scheme, in order to ensure that small blackboard can freely overturn, certain gap must be left between adjacent small blackboard, this just causes between small blackboard cannot compact siro spinning technology, smooth writing cannot be carried out, cause certain obstacle to writing on the blackboard, affect result of use.The another one problem that this technical scheme exists is, adopt belt transmission to drive cylinder to rotate, there is the phenomenons such as skidding, belt slack in belt transmission, cannot realize accurate transmission puts in place, the upset that just there will be small blackboard cannot Complete Synchronization, easily occurs small blackboard gap both sides out-of-flatness phenomenon.
Summary of the invention
A kind of automatic turning blackboard, frame is provided with in surrounding, some vertical blackboard bars are provided with in frame, every bar blackboard bar center is provided with rotating shaft, two rectangular limits and two billet limits are provided with around rotating shaft, rectangular edge lengths is greater than billet edge lengths, and blackboard bar cross sectional shape is the centrosymmetric image centered by rotating shaft.Be provided with upset motor in the frame of side, upset motor shaft is provided with driving gear, and the top of every bar blackboard bar is provided with driven gear, engages each other between driving gear and driven gear and adjacent driven gear.When driving gear drives driven gear to rotate, the rotation direction of adjacent two blackboard bars is contrary.
As improvement, be also provided with at the back side of blackboard erasing brush, in the frame of side, be provided with erasing motor, when the blackboard back side is meaningful need erasing time, erasing motor can drive erasing brush content is wiped.
As improvement, below the frame of bottom side, be provided with water tank, be provided with water pump and air blast in the frame of side, starting mode of pump in erase process, spray water to black plank back, water spray contributes to improving erasing effect and depositing dust.After erasing, air blast starts, and blows, black plank back is remained water stain drying up to black plank back.
The beneficial effects of the utility model are:
1, the combined and form that is centrosymmetric in the rectangular limit of blackboard strip adoption and billet limit, this form can accomplish complete seamless link between blackboard bar, makes blackboard integral surface smooth, writes smooth and easy.
2, the upset of blackboard bar adopts gear drive, substantially increases the accuracy of transmission, and the action realizing all blackboard bars is completely synchronous, there will not be the rugged phenomenon of adjacent blackboard bar, improves result of use.
Accompanying drawing explanation
Accompanying drawing 1, the utility model unitary construction schematic diagram
Accompanying drawing 2, the utility model right side schematic view
Accompanying drawing 3, the utility model schematical top view
Accompanying drawing 4, driving gear, driven gear mesh schematic representation
Accompanying drawing 5, blackboard bar schematic cross-section
Accompanying drawing 6, blackboard bar initial position schematic diagram
Accompanying drawing 7, black slats turn 30 degree of schematic diagrames
Accompanying drawing 8, black slats turn 60 degree of schematic diagrames
Accompanying drawing 9, black slats turn 90 degree of schematic diagrames
Accompanying drawing 10, black slats turn 120 degree of schematic diagrames
Accompanying drawing 11, black slats turn 150 degree of schematic diagrames
Accompanying drawing 12, black slats turn 180 degree of (reset) schematic diagrames
Specific as follows: frame 1, blackboard bar 2, upset motor 3, erasing motor 4, air blast 5, water pump 6, erasing brush 7, water tank 8, driving gear 9, driven gear 10, rotating shaft 11, rectangular limit 12, billet limit 13.
Detailed description of the invention
With reference to the accompanying drawings, a kind of automatic turning blackboard, frame 1 is provided with in surrounding, some vertical blackboard bars 2 are provided with in frame 1, every bar blackboard bar 2 center is provided with rotating shaft 11, around rotating shaft 11, be provided with two rectangular limits 12 and two billet limits 13, rectangular limit 12 length is greater than billet limit 13 length, and blackboard bar 2 cross sectional shape is the centrosymmetric image centered by rotating shaft.As shown in Fig. 6-Figure 12, above-mentioned Central Symmetry shape can ensure that blackboard bar 2 does not mutually stop in switching process, and can accomplish not stay gap between blackboard bar 2 when resetting.Be provided with upset motor 3 in the frame of side, overturn motor 3 under the control of control button for the upset of blackboard bar 2 provides power.Upset motor 3 axle is provided with driving gear 9, and the top of every bar blackboard bar 2 is provided with driven gear 10, engages each other between driving gear 9 and driven gear 10 and adjacent driven gear 10.When driving gear 9 drives driven gear 10 to rotate, the rotation direction of adjacent two blackboard bars 2 is contrary, as shown in Figure 6.Also be provided with at the back side of blackboard erasing brush 7, be provided with in the frame of side erasing motor 4, when the blackboard back side is meaningful need erasing time, button press, erasing motor 4 can drive erasing brush 7 content is wiped.Below the frame of bottom side, be provided with water tank 8, be provided with water pump 6 and air blast 5, starting mode of pump in erase process in the frame of side, spray water to blackboard bar 2 back side, water spray contributes to improving erasing effect and depositing dust.After erasing, air blast 5 starts, and blows blackboard bar 2 back side, and blackboard bar 2 back side is remained water stain drying up.The all erasing work of the utility model all completes at the back side of blackboard, and erase process does not affect the normal use of blackboard, can not bring dust pollution yet.
Claims (3)
1. an automatic turning blackboard, frame (1) is provided with in surrounding, it is characterized in that: in frame (1), be provided with some vertical blackboard bars (2), every bar blackboard bar (2) center is provided with rotating shaft (11), two rectangular limits (12) and two billet limits (13) are provided with around rotating shaft (11), rectangular limit (12) length is greater than billet limit (13) length, and blackboard bar (2) cross sectional shape is the centrosymmetric image centered by rotating shaft (11); Be provided with upset motor (3) in the frame of side, upset motor (3) axle is provided with driving gear (9), and the top of every bar blackboard bar (2) is provided with driven gear (10).
2. a kind of automatic turning blackboard as claimed in claim 1, is characterized in that: be also provided with erasing brush (7) at the back side of blackboard, is provided with erasing motor (4) in the frame of side.
3. a kind of automatic turning blackboard as claimed in claim 1, is characterized in that: below the frame of bottom side, be provided with water tank (8), is provided with water pump (6) and air blast (5) in the frame of side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520767861.2U CN204998204U (en) | 2015-10-05 | 2015-10-05 | Automatic turning blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520767861.2U CN204998204U (en) | 2015-10-05 | 2015-10-05 | Automatic turning blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204998204U true CN204998204U (en) | 2016-01-27 |
Family
ID=55155109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520767861.2U Expired - Fee Related CN204998204U (en) | 2015-10-05 | 2015-10-05 | Automatic turning blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204998204U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106476488A (en) * | 2016-11-18 | 2017-03-08 | 国网山东省电力公司寿光市供电公司 | A kind of synchronous removing formula power engineering scene Graphic Panel and using method |
| CN106626916A (en) * | 2017-01-24 | 2017-05-10 | 南京工业职业技术学院 | Remote-controlled rotary automatic erasing blackboard |
| CN109036004A (en) * | 2018-09-21 | 2018-12-18 | 安徽理工大学 | A kind of higher mathematics integral demonstration teaching aid and its control circuit |
| CN109036002A (en) * | 2018-09-21 | 2018-12-18 | 安徽理工大学 | A kind of higher mathematics Function Teaching course optimization method |
| CN110949040A (en) * | 2019-12-09 | 2020-04-03 | 芜湖应天光电科技有限责任公司 | Full-automatic shutter type dust removal blackboard |
-
2015
- 2015-10-05 CN CN201520767861.2U patent/CN204998204U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106476488A (en) * | 2016-11-18 | 2017-03-08 | 国网山东省电力公司寿光市供电公司 | A kind of synchronous removing formula power engineering scene Graphic Panel and using method |
| CN106626916A (en) * | 2017-01-24 | 2017-05-10 | 南京工业职业技术学院 | Remote-controlled rotary automatic erasing blackboard |
| CN109036004A (en) * | 2018-09-21 | 2018-12-18 | 安徽理工大学 | A kind of higher mathematics integral demonstration teaching aid and its control circuit |
| CN109036002A (en) * | 2018-09-21 | 2018-12-18 | 安徽理工大学 | A kind of higher mathematics Function Teaching course optimization method |
| CN110949040A (en) * | 2019-12-09 | 2020-04-03 | 芜湖应天光电科技有限责任公司 | Full-automatic shutter type dust removal blackboard |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160127 Termination date: 20161005 |