CN203780136U - Flexible blackboard - Google Patents
Flexible blackboard Download PDFInfo
- Publication number
- CN203780136U CN203780136U CN201420176937.XU CN201420176937U CN203780136U CN 203780136 U CN203780136 U CN 203780136U CN 201420176937 U CN201420176937 U CN 201420176937U CN 203780136 U CN203780136 U CN 203780136U
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- CN
- China
- Prior art keywords
- flexible
- vacuum chamber
- blackboard
- flexible board
- flexible sheet
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- Expired - Fee Related
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Abstract
The utility model discloses a flexible blackboard which comprises two lateral boards, two winding shafts, a flexible board and a driving motor, wherein the two lateral boards are symmetrically arranged, the two winding shafts are arranged at the top ends and the bottom ends of the two lateral boards, and the flexible board is wound on the two winding shafts. A vacuum chamber is fixedly arranged between the two lateral boards and positioned on the rear side of the flexible board, air holes are formed in the opposite sides of the vacuum chamber and the flexible board in an array mode, and a vacuum pump is fixed on one lateral board, communicated with the vacuum chamber and connected with a power output end of the driving motor through a belt transmission mechanism. The flexible blackboard has the advantages that by means of the vacuum chamber, the flexible board is adsorbed on the lateral surface of the vacuum chamber firmly, deflection of the flexible board during writing is avoided, and normal writing is ensured; on the other hand, the flexible board rotates by means of the upper winding shaft and the lower winding shaft, a section of white board is reserved at the starting end or the tail end of the flexible board to be matched with a projector for use, and therefore, the application range is enlarged; the flexible blackboard can replace the traditional blackboard and a projector screen, so that educational investment is reduced.
Description
Technical field
The utility model relates to teaching aid technical field, relates in particular to a kind of flexible blackboard.
Background technology
Over more than 200 year, blackboard is that blacking is the earliest smeared plank, smears the recessed surface of cement to the blacking of building in body of wall; From the water mill glass of the nineties, to color coated steel sheet now, composite panel ... witness the development of global education facility.Nowadays, the kind complexity of blackboard is various, has blackboard from color point, green plate, blank ... have surface plate, cambered plate from surface configuration point, there are support portable plate, draw back plate, lifter plate from structure composition point, magnet board, has blackboard for education from purposes point, office blank, billboard, Graphic Panel ..., blackboard for education has again electronic blackboard, Multifunctional combined board, interactive electric whiteboard, band curtain projection plate etc.Although dust-free chalk belongs to the improvement product of common chalk, it just adds grease class or polyalcohols material to make binding agent in common chalk, add again the filler that proportion is larger, as clay, marl, cement etc., can make the proportion of chalk dust and volume all increase, be difficult for dispersing, but the reduction effect that in actual applications, it pollutes chalk dust is not fairly obvious.Manufacturer also wants to attempt to make great efforts to make an effort on blackboard eraser He on plate face, made some automatic dust-absorbing blackboard erasers and reached the object of impairment, but the effect finally reaching but allows of no optimist, and on the one hand, because existing plate plane materiel matter is harder, writing on the blackboard is required great effort in addition.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of flexible blackboard, employing flexible sheet is write, plate surface hardness is lower, only need write gently and can complete writing on the blackboard, vacuum chamber is set simultaneously, flexible sheet is firmly adsorbed on vacuum chamber side, prevent displacement in writing process, affect normal writing on the blackboard, in addition on the one hand, use upper and lower spool pivoting flexible sheet material, flexible sheet initiating terminal or end can be arranged to one section of blank, coordinate projecting apparatus to use, expand the scope of application, a flexible blackboard is alternative traditional blackboard and projecting apparatus screen, save educational investment.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of flexible blackboard, comprise symmetrically arranged two blocks of side plates, be located at two spools of two side plate tops and low side, be wound on two flexible sheet and drive motors on spool, between described two blocks of side plates, be also fixed with vacuum chamber, vacuum chamber is positioned at flexible sheet rear side, described vacuum chamber and flexible sheet opposite side array have pore, on a described side side plate, be fixed with vavuum pump, vavuum pump and vacuum chamber, and it is connected with drive motors clutch end by tape handler.
As a kind of optimal technical scheme of the present utility model, described two spools are with one end by means of chain-drive mechanism transmission, and wherein a spool one end is connected with drive motors clutch end by means of belt gear.
As a kind of optimal technical scheme of the present utility model, described biside plate and flexible sheet opposite side are equipped with the pressing plate for limiting flexible sheet trend.
The beneficial effect that adopts technique scheme to produce is: by vacuum chamber is set, flexible sheet is firmly adsorbed on vacuum chamber side, prevent displacement in writing process, affect normal writing on the blackboard, in addition on the one hand, use upper and lower spool pivoting flexible sheet material, flexible sheet initiating terminal or end can be arranged to one section of blank, coordinate projecting apparatus to use, expand the scope of application, a flexible blackboard is alternative traditional blackboard and projecting apparatus screen, save educational investment, simultaneously in normal teaching process, teacher writes in writing on the blackboard process and can consider plate face to write completely, space avoids waste, can directly start to write writing on the blackboard from centre, treat that the latter half writes, flexible sheet can be scrolled up, until the writing on the blackboard of writing is positioned at top, complete after the writing of a plate face, directly flexible board is wound on spool, needn't erase the board in real time, avoid dust pollution, the length of flexible material is arranged according to general lessons arrangement, having guaranteed daylong writing on the blackboard writes, in the time that within one day, teaching finishes, utilize drive motors to drive spool to rotate backward, and supporting length and flexible sheet width blackboard eraser and the dust exhaust apparatus always of arranging outside the spool of bottom, can complete wiping of whole flexible sheet by rev.
Brief description of the drawings
Fig. 1 is the utility model structural representation;
In the accompanying drawings: 1, clamping plate; 2, flexible sheet; 3, spool; 4, side plate; 5, vavuum pump; 6, drive motors; 7, follower; 8, vacuum chamber; 9, pore.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
The utility model discloses a kind of flexible blackboard, comprise symmetrically arranged two blocks of side plates 4, be located at two spools 3 of two side plate 4 tops and low side, be wound on two flexible sheet 2 and drive motors 6 on spool 3, between described two blocks of side plates 4, be also fixed with vacuum chamber 8, vacuum chamber 8 is positioned at flexible sheet 2 rear sides, described vacuum chamber 8 has pore 9 with flexible sheet 2 opposite side arrays, on a described side side plate 4, be fixed with vavuum pump 5, vavuum pump 5 is communicated with vacuum chamber 8, and it is connected with drive motors 6 clutch ends by tape handler, described two spools 3 with one end by means of chain-drive mechanism transmission, can rotating in same direction between two spools, wherein spool 3 one end are connected with drive motors 6 clutch ends by means of belt gear, drive motors output is provided with two cover belt pulleys, a set of for driving spool, a set of for driving vavuum pump in addition, between two cover belt pulleys, clutch is set, described biside plate 4 is equipped with flexible sheet 2 opposite sides the clamping plate that move towards for limiting flexible sheet 2, because flexible sheet and vacuum chamber sidewall need to be fitted completely in vacuumizing, so use clamping plate can limit the less gap of maintenance between flexible sheet and vacuum chamber side, but also do not affect the normal operation of flexible sheet, for Convenient scrubber removes, avoid contamination by dust, be provided with blackboard eraser in the utility model bottom spool outside, blackboard eraser can adopt prior art.
In concrete application process, first drive vavuum pump to move by drive motors, vacuum chamber is vacuumized, under suction function, atmospheric pressure is pressed in flexible sheet on vacuum chamber sidewall, now cut off the pipeline between vavuum pump and vacuum chamber, magnetic valve can be set on pipeline, and by remote controller control, after a plate face is write, control opens solenoid valve, vacuum chamber unclamps flexible sheet, remote control drive motors drives spool upwards to rotate, thereby flexible sheet is upwards pulled, when to certain position, the clutch separation of the belt gear that drive motors clutch end is corresponding with driving spool, the clutch closure corresponding with driving vavuum pump, driving vavuum pump vacuumizes, complete the absorption of flexible sheet, so far recycle.
The utility model is by arranging vacuum chamber, flexible sheet is firmly adsorbed on vacuum chamber side, prevent displacement in writing process, affect normal writing on the blackboard, in addition on the one hand, use upper and lower spool pivoting flexible sheet material, flexible sheet initiating terminal or end can be arranged to one section of blank, coordinate projecting apparatus to use, expand the scope of application, a flexible blackboard is alternative traditional blackboard and projecting apparatus screen, save educational investment, simultaneously in normal teaching process, teacher writes in writing on the blackboard process and can consider plate face to write completely, space avoids waste, can directly start to write writing on the blackboard from centre, treat that the latter half writes, flexible sheet can be scrolled up, until the writing on the blackboard of writing is positioned at top, complete after the writing of a plate face, directly flexible board is wound on spool, needn't erase the board in real time, avoid dust pollution, the length of flexible material is arranged according to general lessons arrangement, having guaranteed daylong writing on the blackboard writes, in the time that within one day, teaching finishes, utilize drive motors to drive spool to rotate backward, and supporting length and flexible sheet width blackboard eraser and the dust exhaust apparatus always of arranging outside the spool of bottom, can complete wiping of whole flexible sheet by rev.
Claims (3)
1. a flexible blackboard, comprise symmetrically arranged two blocks of side plates (4), be located at two spools (3) of two side plate (4) tops and low side, be wound on flexible sheet (2) and drive motors (6) on two spools (3), it is characterized in that: between described two blocks of side plates (4), be also fixed with vacuum chamber (8), vacuum chamber (8) is positioned at flexible sheet (2) rear side, described vacuum chamber (8) has pore (9) with flexible sheet (2) opposite side array, on a described side side plate (4), be fixed with vavuum pump (5), vavuum pump (5) is communicated with vacuum chamber (8), and it is connected with drive motors (6) clutch end by tape handler.
2. flexible blackboard according to claim 1, is characterized in that: described two spools (3) are with one end by means of chain-drive mechanism transmission, and wherein a spool (3) one end is connected with drive motors (6) clutch end by means of belt gear.
3. flexible blackboard according to claim 2, is characterized in that: described biside plate (4) is equipped with the pressing plate for limiting flexible sheet (2) trend with flexible sheet (2) opposite side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420176937.XU CN203780136U (en) | 2014-04-14 | 2014-04-14 | Flexible blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420176937.XU CN203780136U (en) | 2014-04-14 | 2014-04-14 | Flexible blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203780136U true CN203780136U (en) | 2014-08-20 |
Family
ID=51316355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420176937.XU Expired - Fee Related CN203780136U (en) | 2014-04-14 | 2014-04-14 | Flexible blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203780136U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106476487A (en) * | 2015-09-01 | 2017-03-08 | 山东省青岛第十九中学 | A kind of campaign-styled flexibility blackboard |
-
2014
- 2014-04-14 CN CN201420176937.XU patent/CN203780136U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106476487A (en) * | 2015-09-01 | 2017-03-08 | 山东省青岛第十九中学 | A kind of campaign-styled flexibility 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 |
Granted publication date: 20140820 Termination date: 20160414 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |