CN203995293U - A kind of automatic dust-reducing blackboard being used in conjunction with projection cloth - Google Patents
A kind of automatic dust-reducing blackboard being used in conjunction with projection cloth Download PDFInfo
- Publication number
- CN203995293U CN203995293U CN201420391553.XU CN201420391553U CN203995293U CN 203995293 U CN203995293 U CN 203995293U CN 201420391553 U CN201420391553 U CN 201420391553U CN 203995293 U CN203995293 U CN 203995293U
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- projection cloth
- blackboard
- cloth
- gear
- blackboard body
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Abstract
The utility model provides a kind of automatic dust-reducing blackboard being used in conjunction with projection cloth, belong to teaching aid field, it comprises blackboard body, storage trough, automatic dust removing apparatus and projection cloth, and the both sides correspondence of projection cloth is provided with side cloth, and projection cloth top is provided with protective cover; When projection cloth falls completely, projection cloth blocks blackboard body completely, projection cloth bottom contacts with storage trough surface engagement, the side cloth of projection cloth both sides coordinates bonding with the both sides of blackboard body, also dock with the contact both sides of blackboard body protective cover both sides, and projection cloth, storage trough, two side cloth, protective cover and blackboard bodies surround a sealed volume jointly, it is inner that above-mentioned automatic dust removing apparatus is positioned at sealing cavity volume.The utility model is used in conjunction with projection cloth and blackboard body, projection cloth, storage trough, two side cloth, protective cover and blackboard bodies are surrounded to a sealed volume jointly, and it is inner that automatic dust removing apparatus is arranged to sealing cavity volume, thoroughly solved chalk dust showy problem aloft.
Description
Technical field
The utility model relates to the blackboard using in a kind of teaching, specifically a kind of automatic dust-reducing blackboard being used in conjunction with projection cloth.
Background technology
Blackboard is one of teacher's necessary aid of giving lessons, and teacher often uses blackboard to carry out writing on the blackboard.Along with the continuous progress of society and scientific and technological development, the blackboard that in present teaching life, many uses can automatic erasing, to lighten the students' load, avoids student in the process of blackboard wiping, to suck too much dust, affects healthy; Meanwhile, the progress of science and technology also impels multimedia to step into gradually in teaching life, and being used in conjunction with of computer and projecting apparatus returned teacher's the process of giving lessons and brought many convenience.
Now, giving lessons in process of teacher, often use blackboard writing on the blackboard to students give lessons, in conjunction with being used in conjunction with of computer and projecting apparatus, alleviate again teacher's the burden of giving lessons, but in whole use procedure, the projection cloth being used in conjunction with projecting apparatus only plays the effect of projection image, in addition, without it, does not use; On the other hand, can the blackboard of automatic erasing in removing the process of chalk dust, can unavoidably make the chalk dust that wiping is got off swim in classroom, although the quantity of dust seldom, but accumulate over a long period, still can impact the healthy of student.
Summary of the invention
Technical assignment of the present utility model is for the deficiencies in the prior art, and a kind of automatic dust-reducing blackboard being used in conjunction with projection cloth is provided.
The utility model solves the technical scheme that its technical problem adopts:
A kind of automatic dust-reducing blackboard being used in conjunction with projection cloth, comprise blackboard body, be arranged on storage trough, the automatic dust removing apparatus that is arranged on blackboard body surface and the projection cloth of blackboard body bottom, the both sides correspondence of described projection cloth is provided with side cloth, and the top of projection cloth is provided with protective cover; When projection cloth falls completely, projection cloth blocks blackboard body completely, projection cloth bottom is coordinated and is contacted by magnet with the storage trough surface of blackboard body bottom, the side cloth of projection cloth both sides coordinates bonding with the both sides of blackboard body by velcro, also dock with the contact both sides of blackboard body the protective cover both sides at projection cloth top, and projection cloth, storage trough, two side cloth, protective cover and blackboard bodies surround a sealed volume jointly, it is inner that above-mentioned automatic dust removing apparatus is positioned at sealing cavity volume.
From the left side of blackboard body, in projection cloth uphill process, the spool of projection cloth rotates clockwise, and the base of protective cover contacts with the leading flank of projection cloth all the time.
Gemel connection is passed through at the top of described protective cover and blackboard body.
Described protective cover adopts transparent material to make.
Described automatic dust removing apparatus comprises the first gear, the second gear, the 3rd gear and the 4th gear being arranged on four angles of blackboard body, described the first gear is connected with reducing motor, between the first gear and the 3rd gear, be connected and corresponding bottom and the top that is arranged at blackboard body by rotating shaft respectively between the second gear and the 4th gear; Between the first gear and the second gear, by the first chain, be connected, between the 3rd gear and the 4th gear, by the second chain, be connected, between the first chain and the second chain, be provided with the scraper plate that is parallel to blackboard body, this scraper plate is the cuboid pipe of inner hollow, the one side of the corresponding blackboard body of scraper plate offers a plurality of air suction openings, on this face, be also provided with the hairbrush with blackboard body CONTACT WITH FRICTION, the port of scraper plate one end is connected with blower fan by flexible pipe.
Described flexible pipe is passed down through storage trough, and hose end is provided with storage dirt bag.
The port of described scraper plate one end is connected with flexible pipe, and other end port closed arranges.
Compared with prior art, the beneficial effect producing is a kind of automatic dust-reducing blackboard being used in conjunction with projection cloth of the present utility model:
1) the utility model is reasonable in design, projection cloth and blackboard body are used in conjunction with, in blackboard body bottom, storage trough is set, at projection cloth top, protective cover is set, in projection cloth both sides, correspondence arranges side cloth, and projection cloth, storage trough, two side cloth, protective cover and blackboard bodies are surrounded to a sealed volume jointly, and it is inner that automatic dust removing apparatus is arranged to sealing cavity volume, thoroughly solved chalk dust showy problem aloft, for Students ' Learning, attended class and created a clean and tidy environment;
2) from the left side of blackboard body, projection cloth is in uphill process, and the spool of projection cloth rotates clockwise, and the base of protective cover all the time with the Surface Contact of projection cloth, this has just reduced the frictional force on the surface of projection cloth in projection cloth process of rising or falling and protective cover base, easy to use;
3) add use automatic dust removing apparatus, the letter written with chalk of blackboard wiping body surface, without the manual wiping of student, efficiently convenient quickly and easily.
Accompanying drawing explanation
Structural front view when accompanying drawing 1 is packed up for projection cloth in the utility model.
Accompanying drawing 2 be in Fig. 1 A-A to cutaway view.
Accompanying drawing 3 is the structural front view of label 7 in Fig. 1.
Accompanying drawing 4 falls and structural front view during the cloth full extension of both sides completely for projection cloth.
In figure, 1, blackboard body, 2, storage trough, 3, projection cloth, 4, protective cover, 5, side cloth, 6, magnet, 7, automatic dust removing apparatus, 71, the first gear, the 72, second gear, the 73, the 3rd gear, the 74, the 4th gear, 75, the first chain, the 76, second chain, 77, reducing motor, 78, scraper plate, 79, air suction opening, 710, hairbrush, 711, flexible pipe, 712, blower fan, 713, storage dirt bag.
The specific embodiment
Below in conjunction with accompanying drawing 1,2,3,4, a kind of automatic dust-reducing blackboard being used in conjunction with projection cloth of the present utility model is described in detail below.
By reference to the accompanying drawings 1,2, the automatic dust-reducing blackboard that a kind of and projection cloth of the present utility model are used in conjunction with, its structure comprises blackboard body 1, be arranged on the storage trough 2 of the bottom of blackboard body 1, be arranged on automatic dust removing apparatus 7 and the projection cloth 3 on blackboard body 1 surface.
By reference to the accompanying drawings 1,4, the both sides correspondence of described projection cloth 3 is provided with side cloth 5, and the top of projection cloth 3 is provided with protective cover 4; When projection cloth 3 falls completely, projection cloth 3 blocks blackboard body 1 completely, projection cloth 3 bottoms are coordinated and are contacted by magnet 6 with storage trough 2 surfaces of blackboard body 1 bottom, the side cloth 5 of projection cloth 3 both sides coordinates bonding with the both sides of blackboard body 1 by velcro, also dock with the contact both sides of blackboard body 1 protective cover 4 both sides at projection cloth 3 tops, and projection cloth 3, storage trough 2, two side cloth 5, protective covers 4 surround a sealed volume jointly with blackboard body 1, and it is inner that above-mentioned automatic dust removing apparatus 7 is positioned at sealing cavity volume.
By reference to the accompanying drawings 2, described protective cover 4 adopts transparent material to make, this protective cover 4 passes through gemel connection with the top of blackboard body 1, left side from blackboard body 1, in projection cloth 3 uphill process, the spool of projection cloth 3 rotates clockwise, and the base of protective cover 4 contacts with the leading flank of projection cloth 3 all the time.
By reference to the accompanying drawings 3, described automatic dust removing apparatus 7 comprises the first gear 71, the second gear 72, the 3rd gear 73 and the 4th gear 74 being arranged on 1 four angles of blackboard body, described the first gear 71 is connected with reducing motor 77, between the first gear 71 and the 3rd gear 73, be connected and corresponding bottom and the top that is arranged at blackboard body 1 by rotating shaft respectively between the second gear 72 and the 4th gear 74; Between the first gear 71 and the second gear 72, by the first chain 75, be connected, between the 3rd gear 73 and the 4th gear 74, by the second chain 76, be connected, between the first chain 75 and the second chain 76, be provided with the scraper plate 78 that is parallel to blackboard body 1, the cuboid pipe that this scraper plate 78 is inner hollow, the one side of the corresponding blackboard body 1 of scraper plate 78 offers a plurality of air suction openings 79, on this face, be also provided with the hairbrush 710 with blackboard body 1 CONTACT WITH FRICTION, the port of scraper plate 78 one end is connected with blower fan 712 by flexible pipe 711; Described flexible pipe 711 is passed down through storage trough 2, and flexible pipe 711 ends are provided with storage dirt bag 713; The port of described scraper plate 78 one end is connected with flexible pipe 711, and other end port closed arranges.
While needing the letter written with chalk on blackboard wiping body 1, operation projecting apparatus falls projection cloth 3 completely, and fitted by magnet 6 in the surface of the bottom of projection cloth 3 and storage trough 2, and then the side cloth 5 of projection cloth 3 both sides is opened and made its correspondence be bonded in the both sides of blackboard body 1, after having operated, projection cloth 3, storage trough 2, two side cloth 5, protective covers 4 surround a sealed volume jointly with blackboard body 1, start automatic dust removing apparatus 7 in this sealed volume.Because automatic dust removing apparatus 7 is worked in sealed volume, so chalk dust can not swim in the air in classroom, to student, built a ground in good health Learning atmosphere.
The course of work of automatic dust removing apparatus 7: start reducing motor 77 and blower fan 712, by reducing motor 77 driven gears, rotate, by chain-driving scraper plate 78, up and down reciprocatingly move again, the chalk dust on blackboard body 1 is removed in hairbrush 710 wipings on scraper plate 78, chalk dust is under the effect of blower fan 712, enter air suction opening 79, by flexible pipe 711, enter in storage dirt bag 713.
Its processing and fabricating of automatic dust-reducing blackboard a kind of and that projection cloth is used in conjunction with of the present utility model is simple and convenient, processing and fabricating shown in by specification accompanying drawing.
Except the technical characterictic described in description, be the known technology of those skilled in the art.
Claims (7)
1. the automatic dust-reducing blackboard being used in conjunction with projection cloth, comprise blackboard body, be arranged on storage trough, the automatic dust removing apparatus that is arranged on blackboard body surface and the projection cloth of blackboard body bottom, it is characterized in that, the both sides correspondence of described projection cloth is provided with side cloth, and the top of projection cloth is provided with protective cover; When projection cloth falls completely, projection cloth blocks blackboard body completely, projection cloth bottom is coordinated and is contacted by magnet with the storage trough surface of blackboard body bottom, the side cloth of projection cloth both sides coordinates bonding with the both sides of blackboard body by velcro, also dock with the contact both sides of blackboard body the protective cover both sides at projection cloth top, and projection cloth, storage trough, two side cloth, protective cover and blackboard bodies surround a sealed volume jointly, it is inner that above-mentioned automatic dust removing apparatus is positioned at sealing cavity volume.
2. the automatic dust-reducing blackboard that a kind of and projection cloth according to claim 1 are used in conjunction with, it is characterized in that, from the left side of blackboard body, in projection cloth uphill process, the spool of projection cloth rotates clockwise, and the base of protective cover contacts with the leading flank of projection cloth all the time.
3. a kind of automatic dust-reducing blackboard being used in conjunction with projection cloth according to claim 2, is characterized in that, gemel connection is passed through at the top of described protective cover and blackboard body.
4. the automatic dust-reducing blackboard being used in conjunction with according to a kind of and projection cloth described in claim 1 or 2 or 3, is characterized in that, described protective cover adopts transparent material to make.
5. the automatic dust-reducing blackboard being used in conjunction with according to a kind of and projection cloth described in claim 1 or 2 or 3, it is characterized in that, described automatic dust removing apparatus comprises the first gear, the second gear, the 3rd gear and the 4th gear being arranged on four angles of blackboard body, described the first gear is connected with reducing motor, between the first gear and the 3rd gear, be connected and corresponding bottom and the top that is arranged at blackboard body by rotating shaft respectively between the second gear and the 4th gear; Between the first gear and the second gear, by the first chain, be connected, between the 3rd gear and the 4th gear, by the second chain, be connected, between the first chain and the second chain, be provided with the scraper plate that is parallel to blackboard body, this scraper plate is the cuboid pipe of inner hollow, the one side of the corresponding blackboard body of scraper plate offers a plurality of air suction openings, on this face, be also provided with the hairbrush with blackboard body CONTACT WITH FRICTION, the port of scraper plate one end is connected with blower fan by flexible pipe.
6. a kind of automatic dust-reducing blackboard being used in conjunction with projection cloth according to claim 5, is characterized in that, described flexible pipe is passed down through storage trough, and hose end is provided with storage dirt bag.
7. a kind of automatic dust-reducing blackboard being used in conjunction with projection cloth according to claim 5, is characterized in that, the port of described scraper plate one end is connected with flexible pipe, and other end port closed arranges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420391553.XU CN203995293U (en) | 2014-07-16 | 2014-07-16 | A kind of automatic dust-reducing blackboard being used in conjunction with projection cloth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420391553.XU CN203995293U (en) | 2014-07-16 | 2014-07-16 | A kind of automatic dust-reducing blackboard being used in conjunction with projection cloth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203995293U true CN203995293U (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420391553.XU Expired - Fee Related CN203995293U (en) | 2014-07-16 | 2014-07-16 | A kind of automatic dust-reducing blackboard being used in conjunction with projection cloth |
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| CN (1) | CN203995293U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105235417A (en) * | 2015-10-13 | 2016-01-13 | 贺佳 | English teaching blackboard |
| CN106710347A (en) * | 2016-11-29 | 2017-05-24 | 郑州同心创远生物科技有限公司 | Sand-table practical-training teaching aid for supply chain management |
| CN108146110A (en) * | 2017-12-23 | 2018-06-12 | 赣州市亿研机械设计研究院有限公司 | A kind of teaching multi-functional blackboard |
| CN108469713A (en) * | 2018-03-27 | 2018-08-31 | 杭州也思文化传播有限公司 | A kind of concealed projection arrangement for publicity |
| CN108583077A (en) * | 2018-04-24 | 2018-09-28 | 遵义市永宏金属设备有限公司 | Intake type blackboard |
| CN109159581A (en) * | 2018-08-24 | 2019-01-08 | 莫逢文 | Storage blackboard case for Mobile Teaching |
| CN109484060A (en) * | 2018-12-06 | 2019-03-19 | 吴灶弟 | Multi-functional blackboard is used in a kind of new-type health type teaching |
| CN110435335A (en) * | 2019-08-02 | 2019-11-12 | 广州科技贸易职业学院 | A kind of interest English teaching remittance explanation displaying teaching aid |
| CN110863629A (en) * | 2019-12-02 | 2020-03-06 | 广东伊元素墙体材料有限公司 | Multifunctional wall-mounted background wall |
| CN111845169A (en) * | 2020-08-05 | 2020-10-30 | 陕西理工大学 | Auxiliary device for mathematical education |
| CN111907243A (en) * | 2020-07-29 | 2020-11-10 | 何楚坤 | Intelligent dust-free camera shooting blackboard system |
| CN112123980A (en) * | 2020-09-29 | 2020-12-25 | 长春光华学院 | Multifunctional accounting visual teaching model system |
-
2014
- 2014-07-16 CN CN201420391553.XU patent/CN203995293U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105235417A (en) * | 2015-10-13 | 2016-01-13 | 贺佳 | English teaching blackboard |
| CN106710347A (en) * | 2016-11-29 | 2017-05-24 | 郑州同心创远生物科技有限公司 | Sand-table practical-training teaching aid for supply chain management |
| CN108146110A (en) * | 2017-12-23 | 2018-06-12 | 赣州市亿研机械设计研究院有限公司 | A kind of teaching multi-functional blackboard |
| CN108469713A (en) * | 2018-03-27 | 2018-08-31 | 杭州也思文化传播有限公司 | A kind of concealed projection arrangement for publicity |
| CN108583077A (en) * | 2018-04-24 | 2018-09-28 | 遵义市永宏金属设备有限公司 | Intake type blackboard |
| CN109159581A (en) * | 2018-08-24 | 2019-01-08 | 莫逢文 | Storage blackboard case for Mobile Teaching |
| CN109484060A (en) * | 2018-12-06 | 2019-03-19 | 吴灶弟 | Multi-functional blackboard is used in a kind of new-type health type teaching |
| CN110435335A (en) * | 2019-08-02 | 2019-11-12 | 广州科技贸易职业学院 | A kind of interest English teaching remittance explanation displaying teaching aid |
| CN110863629A (en) * | 2019-12-02 | 2020-03-06 | 广东伊元素墙体材料有限公司 | Multifunctional wall-mounted background wall |
| CN111907243A (en) * | 2020-07-29 | 2020-11-10 | 何楚坤 | Intelligent dust-free camera shooting blackboard system |
| CN111845169A (en) * | 2020-08-05 | 2020-10-30 | 陕西理工大学 | Auxiliary device for mathematical education |
| CN112123980A (en) * | 2020-09-29 | 2020-12-25 | 长春光华学院 | Multifunctional accounting visual teaching model system |
| CN112123980B (en) * | 2020-09-29 | 2021-10-29 | 长春光华学院 | Multifunctional accounting visual teaching model system |
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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 |
Granted publication date: 20141210 Termination date: 20150716 |
|
| EXPY | Termination of patent right or utility model |