CN204687636U - A kind of blackboard of rotatable flexible formula - Google Patents
A kind of blackboard of rotatable flexible formula Download PDFInfo
- Publication number
- CN204687636U CN204687636U CN201520239169.2U CN201520239169U CN204687636U CN 204687636 U CN204687636 U CN 204687636U CN 201520239169 U CN201520239169 U CN 201520239169U CN 204687636 U CN204687636 U CN 204687636U
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- China
- Prior art keywords
- blackboard
- rotating shaft
- fixed mount
- groove
- draw
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Abstract
The utility model relates to educational aid technical field, particularly relates to a kind of blackboard of rotatable flexible formula.It comprises telescoping mechanism and blackboard unit group.Telescoping mechanism comprises the fixed mount of both sides, and the fixed mount of both sides is respectively arranged with rotating shaft, coordinates the vertical rotating shaft of multiple unit, forms rotating shaft group.In rotating shaft group arbitrary neighborhood two rotating shafts between in the top of rotating shaft and bottom respectively by chain connection, each rotating shaft is arranged with unit blackboard respectively, and each unit blackboard forms blackboard unit group.The blackboard of rotatable flexible formula provided by the utility model effectively can carry out the telescopic folding of structure, is easy to carry, and reduces accommodation space.And structure is simple, easy to use, be suitable for teaching and use.
Description
Technical field
The utility model relates to educational aid technical field, particularly relates to a kind of blackboard of rotatable flexible formula.
Background technology
Along with the development of science and technology, modernizing teaching equipment arises at the historic moment, and most popularly surely belongs to multimedia equipment, multimedia use, and the facility brought in teaching link to teacher is mathematical.But, things always has dual character, multimedia also brings a series of problem while bringing convenience to teacher, such as quality of instruction decline making the effective area of blackboard reduces greatly, teacher have ignored some important steps because only using multimedia courseware calculation when using multimedia because of blocking and bring etc.Therefore, how to improve and use the utilization rate of blackboard and multimedia equipment to become the emphasis direction of each teaching equipment company research simultaneously.
For how increasing blackboard area, how can use multimedia and blackboard simultaneously and how solve the problem of blackboard reflective light, also many dissimilar blackboards have been there is at present, wherein the most widely usedly surely belong to following three kinds of blackboards: (1) slides up and down formula blackboard, whole plate face by blackboard is divided into a left side, right two parts, left plate face and right plate face are all can go up by two pieces, the small blackboard composition of lower slider, this design teacher can according to the height of the writing style regulating writing of oneself, substantially increase effective usable floor area of blackboard, but although the blackboard of this design makes effective usable floor area of blackboard increase, but great interference will inevitably be brought when installing multimedia, effective usable floor area of blackboard will reduce a greater part of, (2) formula that horizontally slips blackboard, namely the both sides of blackboard are respectively arranged with one piece of small blackboard that can horizontally slip, vacating partly for installing multimedia in the middle of blackboard, although this design can realize blackboard and multimedialy to use simultaneously, but create new problem again, it is exactly the normal rates according to multimedia screen, the blackboard of both sides will do higher, the writing height of teacher will be increased like this, affect effective usable floor area of blackboard, simultaneously be used for multimedia is installed because part is vacated in the centre of blackboard, therefore the length of whole blackboard will certainly be made to increase, result in the reflective problem that both sides are serious, (3) Curved surface blackboard, Curved surface blackboard mainly solves the reflective problem of blackboard, by the plate face of blackboard being done camber, reflective problem can be solved to a certain extent, but Arc shape blackboard can make blackboard thickening, affects the attractive in appearance of blackboard, increase the cost of manufacture of blackboard, more troublesome be it will strengthen teacher write difficulty, and do not solve multimedia occlusion issue equally.
And current existing multi-functional blackboard is comparatively complicated, the cost namely increased, uses inconvenience again.
Utility model content
For solving the deficiencies in the prior art, the utility model provides a kind of blackboard of rotatable flexible formula.
A kind of blackboard of rotatable flexible formula, comprise telescoping mechanism and blackboard unit group, described telescoping mechanism comprises the first fixed mount being positioned at side and the second fixed mount being positioned at opposite side, the upper end of described first fixed mount is provided with the first Top Crossbeam, the lower end of described first fixed mount is provided with the first lower cross arm, the first vertical rotating shaft is provided with between described first Top Crossbeam and described first lower cross arm, the upper end of described second fixed mount is provided with the second Top Crossbeam, the lower end of described second fixed mount is provided with the second lower cross arm, the second vertical rotating shaft is provided with between described second Top Crossbeam and described second lower cross arm, described first Top Crossbeam and described second Top Crossbeam are arranged in opposite directions, described first lower cross arm and described second lower cross arm are arranged in opposite directions, described telescoping mechanism also comprises the vertical rotating shaft of multiple unit be arranged between described first rotating shaft and described second rotating shaft, described first rotating shaft, the vertical rotating shaft of described unit and described second rotating shaft form rotating shaft group, in described rotating shaft group arbitrary neighborhood two rotating shafts between in the top of rotating shaft and bottom respectively by chain connection, each rotating shaft is arranged with unit blackboard respectively, each unit blackboard forms blackboard unit group.
Symmetrical arranging can guarantee the capable of expansion and contraction of blackboard.
Preferably, the upper end of described first fixed mount is provided with the first draw-in groove, the upper end of described second fixed mount is provided with the second draw-in groove, the two ends of upper fixed bar can be embedded in the groove of described first draw-in groove and described second draw-in groove respectively.
Preferably, the lower end of described first fixed mount is provided with the 3rd draw-in groove, the lower end of described second fixed mount is provided with the 4th draw-in groove, the two ends of lower fixed bar can be embedded in the groove of described 3rd draw-in groove and described 4th draw-in groove respectively.
Simple top is fixed or bottom is fixed and can be played fixing effect, but simultaneously fixingly up and down can stablize the structure after blackboard expansion further, is convenient to write.
Preferably, roller is respectively arranged with in the lower end of the lower end of described first fixed mount and described second fixed mount.
The setting of roller and the movement of Convenient blackboard entirety, the also telescopic folding of Convenient blackboard.
When one end arrange roller one end fixing time, the effect being convenient to telescopic folding can be played.
The blackboard of rotatable flexible formula provided by the utility model effectively can carry out the telescopic folding of structure, is easy to carry, and reduces accommodation space.And structure is simple, easy to use, be suitable for teaching and use.
Accompanying drawing explanation
Fig. 1 is the backsight structural representation of the blackboard of rotatable flexible formula provided by the utility model.
Fig. 2 is the plan structure schematic diagram of the telescoping mechanism of the blackboard of rotatable flexible formula provided by the utility model.
In accompanying drawing 1,2, the list of parts representated by each label is as follows:
1, the first fixed mount, the 11, first Top Crossbeam, the 12, first lower cross arm, 13, the first rotating shaft, the 14, first draw-in groove, the 15, the 3rd draw-in groove, 2, the second fixed mount, the 21, second Top Crossbeam, the 22, second lower cross arm, 23, the second rotating shaft, the 24, second draw-in groove, the 25, the 4th draw-in groove, 3, rotating shaft, 4, hinge, 5, unit blackboard, 6, upper fixed bar, 7, lower fixed bar, 8, roller.
Detailed description of the invention
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, illustrated embodiment, only for explaining the utility model, is not intended to limit scope of the present utility model.
In a detailed description of the invention, as shown in Figure 1, a kind of blackboard of rotatable flexible formula, comprises telescoping mechanism and blackboard unit group.
Telescoping mechanism comprises the first fixed mount 1 being positioned at side and the second fixed mount 2 being positioned at opposite side, the upper end of described first fixed mount is provided with the first Top Crossbeam 11, the lower end of described first fixed mount is provided with the first lower cross arm 12, the first vertical rotating shaft 13 is provided with between described first Top Crossbeam and described first lower cross arm, the upper end of described second fixed mount is provided with the second Top Crossbeam 21, the lower end of described second fixed mount is provided with the second lower cross arm 22, the second vertical rotating shaft 23 is provided with between described second Top Crossbeam and described second lower cross arm, described first Top Crossbeam and described second Top Crossbeam are arranged in opposite directions, described first lower cross arm and described second lower cross arm are arranged in opposite directions.
Described telescoping mechanism also comprises the vertical rotating shaft of multiple unit be arranged between described first rotating shaft and described second rotating shaft, and described first rotating shaft, the vertical rotating shaft of described unit and described second rotating shaft form rotating shaft group.
As shown in Figure 2, in described rotating shaft group arbitrary neighborhood two rotating shafts 3 between be connected respectively by hinge 4 with bottom on the top of rotating shaft, each rotating shaft is arranged with unit blackboard 5 respectively, and each unit blackboard forms blackboard unit group.
The upper end of described first fixed mount is provided with the first draw-in groove 14, the upper end of described second fixed mount is provided with the second draw-in groove 24, the two ends of upper fixed bar 6 can be embedded in the groove of described first draw-in groove and described second draw-in groove respectively.
The lower end of described first fixed mount is provided with the 3rd draw-in groove 15, the lower end of described second fixed mount is provided with the 4th draw-in groove 25, the two ends of lower fixed bar 7 can be embedded in the groove of described 3rd draw-in groove and described 4th draw-in groove respectively.
Roller 8 is respectively arranged with in the lower end of the lower end of described first fixed mount and described second fixed mount.
In use procedure, pull open rightabout for the fixed mount of both sides, by smooth for the upset of each blackboard, then fixed bar is fixedly put well, then can bring into use blackboard.
After using, unload fixed bar, open each blackboard a little, then the fixed mount of blackboard both sides is closed up in opposite directions, then can by blackboard folding shrinking.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. the blackboard of a rotatable flexible formula, it is characterized in that: comprise telescoping mechanism and blackboard unit group, described telescoping mechanism comprises the first fixed mount being positioned at side and the second fixed mount being positioned at opposite side, the upper end of described first fixed mount is provided with the first Top Crossbeam, the lower end of described first fixed mount is provided with the first lower cross arm, the first vertical rotating shaft is provided with between described first Top Crossbeam and described first lower cross arm, the upper end of described second fixed mount is provided with the second Top Crossbeam, the lower end of described second fixed mount is provided with the second lower cross arm, the second vertical rotating shaft is provided with between described second Top Crossbeam and described second lower cross arm, described first Top Crossbeam and described second Top Crossbeam are arranged in opposite directions, described first lower cross arm and described second lower cross arm are arranged in opposite directions, described telescoping mechanism also comprises the vertical rotating shaft of multiple unit be arranged between described first rotating shaft and described second rotating shaft, described first rotating shaft, the vertical rotating shaft of multiple described unit and described second rotating shaft form rotating shaft group, in described rotating shaft group arbitrary neighborhood two rotating shafts between in the top of rotating shaft and bottom respectively by chain connection, each rotating shaft is arranged with unit blackboard respectively, each unit blackboard forms blackboard unit group.
2. the blackboard of rotatable flexible formula according to claim 1, it is characterized in that: also comprise fixed bar, the upper end of described first fixed mount is provided with the first draw-in groove, the upper end of described second fixed mount is provided with the second draw-in groove, and the two ends of fixed bar can be embedded in the groove of described first draw-in groove and described second draw-in groove respectively.
3. the blackboard of rotatable flexible formula according to claim 1, it is characterized in that: also comprise lower fixed bar, the lower end of described first fixed mount is provided with the 3rd draw-in groove, the lower end of described second fixed mount is provided with the 4th draw-in groove, and the two ends of described lower fixed bar can be embedded in the groove of described 3rd draw-in groove and described 4th draw-in groove respectively.
4. the blackboard of the rotatable flexible formula according to claim 1 or 2 or 3, is characterized in that: be respectively arranged with roller in the lower end of the lower end of described first fixed mount and described second fixed mount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520239169.2U CN204687636U (en) | 2015-04-20 | 2015-04-20 | A kind of blackboard of rotatable flexible formula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520239169.2U CN204687636U (en) | 2015-04-20 | 2015-04-20 | A kind of blackboard of rotatable flexible formula |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204687636U true CN204687636U (en) | 2015-10-07 |
Family
ID=54227968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520239169.2U Expired - Fee Related CN204687636U (en) | 2015-04-20 | 2015-04-20 | A kind of blackboard of rotatable flexible formula |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204687636U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106313963A (en) * | 2016-09-23 | 2017-01-11 | 杭州富阳尚科科技有限公司 | Automatic cleaning spliced blackboard with double using faces |
| CN108357246A (en) * | 2018-01-26 | 2018-08-03 | 上海市格致中学 | A kind of three face rotary extension blackboards |
-
2015
- 2015-04-20 CN CN201520239169.2U patent/CN204687636U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106313963A (en) * | 2016-09-23 | 2017-01-11 | 杭州富阳尚科科技有限公司 | Automatic cleaning spliced blackboard with double using faces |
| CN108357246A (en) * | 2018-01-26 | 2018-08-03 | 上海市格致中学 | A kind of three face rotary extension blackboards |
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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: 20151007 Termination date: 20160420 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |