CN205022248U - But height -adjusting's preventing reflecting blackboard - Google Patents
But height -adjusting's preventing reflecting blackboard Download PDFInfo
- Publication number
- CN205022248U CN205022248U CN201520571090.XU CN201520571090U CN205022248U CN 205022248 U CN205022248 U CN 205022248U CN 201520571090 U CN201520571090 U CN 201520571090U CN 205022248 U CN205022248 U CN 205022248U
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- blackboard
- dust
- curved surface
- height
- utility
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Abstract
The utility model discloses a but height -adjusting's preventing reflecting blackboard, including box and curved surface blackboard, the upper end both sides of box are equipped with the stand, and the inboard of stand is equipped with the spout, and the curved surface blackboard is through a plurality of gyro wheel swing joint spouts, the front below of curved surface blackboard is equipped with inhales the ash mouth, the below of inhaling the ash mouth is equipped with lou hopper -shaped's flue -dust retainer, the lower extreme of flue -dust retainer is equipped with negative -pressure air fan, the utility model discloses a consequently the curved surface blackboard has preventing reflecting's effect, and the below of blackboard is equipped with elevating gear simultaneously for the blackboard can adapt to the teacher of different heights, is equipped with unique dust collection device simultaneously, can be effectual the reduction dust to the injury of human body, can concentrate the recovery moreover, utilize reproduction technology to become the chalk dust into the chalk once more, so both practiced thrift the resource, the harm to the environment has simultaneously also fallled to the minimum.
Description
Technical field
The utility model relates to teaching aid field, specifically a kind of height-adjustable reflection prevention blackboard.
Background technology
Blackboard is teaching aid indispensable in school instruction process.At present, most blackboard is all be fixedly mounted on wall, and its height cannot regulate, and can not meet the different teacher of height and use.In addition, existing blackboard surfacing is smooth easily reflective, easily makes the classmate being sitting in classroom side cannot see the writing on the blackboard content in blackboard distally clearly.The blackboard style at present with reflection-proof is less, and function singleness, asynchronously there is the function regulating height, simultaneously because chalk easily produces a large amount of dust in the process of writing, lung can be sucked by teacher like this, especially the educator worked for many years, dust is easily in lung's accumulation, and this is the fundamental cause causing pneumoconiosis, and flies away everywhere due to dust, therefore sweep very unhygienic, also cannot continue to utilize simultaneously.
Summary of the invention
The purpose of this utility model is to provide a kind of height-adjustable reflection prevention blackboard, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of height-adjustable reflection prevention blackboard, comprise casing and Curved surface blackboard, the both sides, upper end of described casing are provided with column, and the inner side of column is provided with chute, and Curved surface blackboard is flexibly connected chute by multiple roller; Dust-absorbing mouth is provided with below the front of described Curved surface blackboard, the below of described dust-absorbing mouth is provided with funnelform flue-dust retainer, the lower end of described flue-dust retainer is provided with negative-pressure air fan, by the effect of negative-pressure air fan, make dust-absorbing mouth place produce negative pressure, therefore can be inhaled in flue-dust retainer from the dust that Curved surface blackboard falls; The below of described negative-pressure air fan is provided with dust box, dust box is for collecting dust that chalk produces, when collecting a certain amount of, can take out, and can centralized recovery, utilize regenerative ratio technique that chalk dust is become chalk again, so both saved resource, the infringement of environment is also dropped to minimum simultaneously; Two cylinders are provided with in described casing, described cylinder-driven connects support bar, and the other end of described support bar is fixedly connected with the lower end of Curved surface blackboard, drives support bar to stretch by cylinder, thus make Curved surface blackboard oscilaltion, make Curved surface blackboard can adapt to the teacher of different height like this.
As further program of the utility model: described casing is provided with and regulates button and baffle plate, and described adjustment button connects cylinder, by regulating the function mode of button control cylinder.
As the utility model further scheme: the length of described Curved surface blackboard is 4m-8m, the height of Curved surface blackboard is 1.5m-2.5m.
As the utility model further scheme: described baffle plate one end is connected by articulate with the outer wall of casing, and the other end is provided with snap close, baffle plate can be fixedly connected with casing by snap close.
As the utility model further scheme: described dust box is positioned at the inner side of baffle plate, therefore by baffle plate is opened, then can take out dust box and clean.
As the utility model further scheme: the front end of described casing is provided with pedal.
Compared with prior art, the beneficial effects of the utility model are: the utility model adopts Curved surface blackboard, therefore have the effect of reflection-proof, the below of blackboard is provided with lowering or hoisting gear simultaneously, makes blackboard can adapt to the teacher of different height, be provided with unique dust collecting simultaneously, effectively can reduce the injury of dust to human body, and can centralized recovery, utilize regenerative ratio technique that chalk dust is become chalk again, so both saved resource, the infringement of environment had also been dropped to minimum simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of height-adjustable reflection prevention blackboard of the utility model.
Fig. 2 is the rearview in a kind of height-adjustable reflection prevention blackboard of the utility model.
In figure: 1-casing, 2-pedal, 3-column, 4-Curved surface blackboard, 5-baffle plate, 6-snap close, 7-regulate button, 8-roller, 9-flue-dust retainer, 10-negative-pressure air fan, 11-dust box, 12-cylinder, 13-support bar, 14-dust-absorbing mouth.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1 ~ 2, in the utility model embodiment, a kind of height-adjustable reflection prevention blackboard, comprise casing 1 and Curved surface blackboard 4, the both sides, upper end of described casing 1 are provided with column 3, and the inner side of column 3 is provided with chute, and Curved surface blackboard 4 is flexibly connected chute by multiple roller 8; Dust-absorbing mouth 14 is provided with below the front of described Curved surface blackboard 4, the below of described dust-absorbing mouth 14 is provided with funnelform flue-dust retainer 9, the lower end of described flue-dust retainer 9 is provided with negative-pressure air fan 10, by the effect of negative-pressure air fan 10, make dust-absorbing mouth 14 place produce negative pressure, the dust therefore fallen from Curved surface blackboard 4 can be inhaled in flue-dust retainer 9; The below of described negative-pressure air fan 10 is provided with dust box 11, dust box 11 is for collecting dust that chalk produces, when collecting a certain amount of, can take out, and can centralized recovery, utilize regenerative ratio technique that chalk dust is become chalk again, so both saved resource, the infringement of environment is also dropped to minimum simultaneously.
Two cylinders 12 are provided with in described casing 1, described cylinder 12 is in transmission connection support bar 13, the other end of described support bar 13 is fixedly connected with the lower end of Curved surface blackboard 4, support bar 13 is driven to stretch by cylinder 12, thus make Curved surface blackboard 4 oscilaltion, make Curved surface blackboard 4 can adapt to the teacher of different height like this.
Described casing 1 is provided with and regulates button 7 and baffle plate 5, and described adjustment button 7 connects cylinder 12, by regulating the function mode of button 7 control cylinder 12; Described baffle plate 5 one end is connected by articulate with the outer wall of casing 1, and the other end is provided with snap close 6, baffle plate 5 can be fixedly connected with casing 1 by snap close 6; Described dust box 11 is positioned at the inner side of baffle plate 5, therefore by being opened by baffle plate 5, then can take out dust box 11 and cleaning.
The length of described Curved surface blackboard 4 is 4m-8m, and the height of Curved surface blackboard 4 is 1.5m-2.5m.
The front end of described casing 1 is provided with pedal 2.
Operation principle of the present utility model is: owing to adopting Curved surface blackboard 4 blackboard, therefore can prevent the classmate being sitting in side, classroom from looking at the blackboard and there will be reflective situation, be provided with lowering or hoisting gear simultaneously, support bar 13 is driven to stretch by cylinder 12, thus make Curved surface blackboard 4 oscilaltion, make Curved surface blackboard 4 can adapt to the teacher of different height like this; Dust-absorbing mouth 14 is provided with below the front of Curved surface blackboard 4, the below of described dust-absorbing mouth 14 is provided with funnelform flue-dust retainer 9, the lower end of described flue-dust retainer 9 is provided with negative-pressure air fan 10, by the effect of negative-pressure air fan 10, make dust-absorbing mouth 14 place produce negative pressure, the dust therefore fallen from Curved surface blackboard 4 can be inhaled in flue-dust retainer 9; The below of described negative-pressure air fan 10 is provided with dust box 11, dust box 11 is for collecting dust that chalk produces, when collecting a certain amount of, can take out, and can centralized recovery, utilize regenerative ratio technique that chalk dust is become chalk again, so both saved resource, the infringement of environment is also dropped to minimum simultaneously.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this description is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should by description integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (6)
1. a height-adjustable reflection prevention blackboard, comprises casing and Curved surface blackboard, and the both sides, upper end of described casing are provided with column, and the inner side of column is provided with chute, and Curved surface blackboard is flexibly connected chute by multiple roller; It is characterized in that, be provided with dust-absorbing mouth below the front of described Curved surface blackboard, the below of described dust-absorbing mouth is provided with funnelform flue-dust retainer, and the lower end of described flue-dust retainer is provided with negative-pressure air fan; The below of described negative-pressure air fan is provided with dust box; Be provided with two cylinders in described casing, described cylinder-driven connects support bar, and the other end of described support bar is fixedly connected with the lower end of Curved surface blackboard.
2. height-adjustable reflection prevention blackboard according to claim 1, is characterized in that, described casing is provided with and regulates button and baffle plate, and described adjustment button connects cylinder.
3. height-adjustable reflection prevention blackboard according to claim 1, is characterized in that, the length of described Curved surface blackboard is 4m-8m, and the height of Curved surface blackboard is 1.5m-2.5m.
4. height-adjustable reflection prevention blackboard according to claim 2, is characterized in that, described baffle plate one end is connected by articulate with the outer wall of casing, and the other end is provided with snap close.
5. height-adjustable reflection prevention blackboard according to claim 1 and 2, is characterized in that, described dust box is positioned at the inner side of baffle plate.
6. height-adjustable reflection prevention blackboard according to claim 1, is characterized in that, the front end of described casing is provided with pedal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520571090.XU CN205022248U (en) | 2015-08-01 | 2015-08-01 | But height -adjusting's preventing reflecting blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520571090.XU CN205022248U (en) | 2015-08-01 | 2015-08-01 | But height -adjusting's preventing reflecting blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205022248U true CN205022248U (en) | 2016-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520571090.XU Expired - Fee Related CN205022248U (en) | 2015-08-01 | 2015-08-01 | But height -adjusting's preventing reflecting blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205022248U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108847058A (en) * | 2018-07-07 | 2018-11-20 | 江西师范大学 | A kind of electronic commerce teaching device |
| CN112735208A (en) * | 2020-12-30 | 2021-04-30 | 湖南人文科技学院 | College Japanese listening comprehension trainer |
| CN115739719A (en) * | 2022-11-08 | 2023-03-07 | 连云港小牛电子科技有限公司 | Self-cleaning multifunctional blackboard and use method thereof |
-
2015
- 2015-08-01 CN CN201520571090.XU patent/CN205022248U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108847058A (en) * | 2018-07-07 | 2018-11-20 | 江西师范大学 | A kind of electronic commerce teaching device |
| CN112735208A (en) * | 2020-12-30 | 2021-04-30 | 湖南人文科技学院 | College Japanese listening comprehension trainer |
| CN115739719A (en) * | 2022-11-08 | 2023-03-07 | 连云港小牛电子科技有限公司 | Self-cleaning multifunctional blackboard and use method thereof |
| CN115739719B (en) * | 2022-11-08 | 2023-11-10 | 连云港小牛电子科技有限公司 | Self-cleaning multifunctional blackboard and use method thereof |
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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: 20160210 Termination date: 20160801 |