CN108357246A - A kind of three face rotary extension blackboards - Google Patents
A kind of three face rotary extension blackboards Download PDFInfo
- Publication number
- CN108357246A CN108357246A CN201810079623.0A CN201810079623A CN108357246A CN 108357246 A CN108357246 A CN 108357246A CN 201810079623 A CN201810079623 A CN 201810079623A CN 108357246 A CN108357246 A CN 108357246A
- Authority
- CN
- China
- Prior art keywords
- blackboard
- expansion bracket
- shaft
- rotating shaft
- rotary extension
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
- B43L1/04—Blackboards
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B97/00—Furniture or accessories for furniture, not provided for in other groups of this subclass
- A47B97/04—Easels or stands for blackboards or the like
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The present invention provides a kind of three face rotary extension blackboards, which is characterized in that including blackboard unit group, expansion bracket, the blackboard unit group includes triangular prism, and shaft, the expansion bracket includes hack lever, central rotating shaft, telescopic rotating shaft, the blackboard unit group connect the expansion bracket by the shaft.Advantage is：The present invention provides a kind of three face rotary extension blackboards, the blackboard usable floor area of three times is realized in same space, greatly extend the using effect of blackboard, in teaching process, reduce the time for erasing the board and consuming repeatedly, efficiency of teaching is improved, because can stretch, blackboard is met and projects dual-purpose modern teaching purpose.
Description
Technical field
The present invention relates to teaching equipment fields, more particularly to a kind of three face rotary extension blackboards.
Background technology
Existing blackboard is mostly fixed pan, often since the content of courses is more in teaching process, and blackboard use space
Limited, teacher's needs are repeatedly erasable, not only waste instructional blocks of time in this way, but also influence quality of instruction and efficiency.
Invention content
For the above problem of blackboard, a kind of three face rotary extension blackboards are now provided.
Specific technical solution is as follows：
A kind of three face rotary extension blackboards, including blackboard unit group, expansion bracket, the blackboard unit group include several trigones
Column, several shafts, the expansion bracket include hack lever, central rotating shaft, telescopic rotating shaft, and the blackboard unit group is connected by the shaft
Connect the expansion bracket.
Preferably, the blackboard unit group, which is connected by several triangular prisms, forms.
Preferably, the triangular prism is equipped with vertical center turn hole, and the shaft passes through the turn hole series winding triangular prism.
Preferably, the expansion bracket is formed by several hack levers by central rotating shaft and telescopic rotating shaft hinge.
Preferably, the expansion bracket central rotating shaft is connected with the shaft upper end.
Advantage is：The present invention provides a kind of three face rotary extension blackboards, and three times are realized in same space
Blackboard usable floor area, greatly extends the using effect of blackboard, in teaching process, reduce erase the board repeatedly and consume when
Between, efficiency of teaching is improved, because can stretch, blackboard is met and projects dual-purpose modern teaching purpose.
Description of the drawings
Fig. 1 is the schematic diagram of three face rotary extension blackboard total of inventive embodiments；
Fig. 2 is the schematic diagram of the single triangular prism structure of three face rotary extension blackboard of the embodiment of the present invention；
Fig. 3 is the schematic diagram of the single expansion bracket of three face rotary extension blackboard of the embodiment of the present invention.
Reference numeral indicates explanation in description above：
Blackboard unit group (1)；Expansion bracket (2)；Triangular prism (12)；Shaft (13)；Center turn hole (121)；Hack lever (21)；In
Heart shaft (22)；Telescopic rotating shaft (23).
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art obtained under the premise of not making creative work it is all its
His embodiment, shall fall within the protection scope of the present invention.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The invention will be further described in the following with reference to the drawings and specific embodiments, but not as limiting to the invention.
As shown in Figure 1, a kind of embodiment of three faces rotary extension blackboard, wherein including blackboard unit group 1, expansion bracket 2,
The blackboard unit group 1 includes triangular prism 12, and shaft 13, the expansion bracket includes hack lever 21, central rotating shaft 22, telescopic rotating shaft
23, blackboard unit group 1 connects the expansion bracket 2 by shaft 13.
In above-mentioned technical proposal, blackboard unit group 1 is formed by the connection of several triangular prisms 12.Triangular prism 12 can be with
Shaft 13 rotates, and realizes that three faces all use, increases blackboard for education usable floor area.
In a preferred embodiment of the invention, as shown in Fig. 2, triangular prism 12 is equipped with vertical center turn hole 121, shaft 13
Pass through the series winding triangular prism 12 of center turn hole 121.Drive several triangular prisms 12 that can turn face together by the rotation of shaft 13,
Face can individually be turned, flexibly used according to teaching purpose to realize, for example, when vertically writing can selectivity rotation it is single or
The several triangular prisms 12 of person improve efficiency of teaching.
In a preferred embodiment of the invention, as shown in figure 3, expansion bracket 2 by several hack levers 21 by several
Heart shaft 22 and several 23 hinges of telescopic rotating shaft are formed, past mutually between symmetrical telescopic rotating shaft 23 when expansion bracket 2 shortens
Out-draw makes several central rotating shafts 22 be gathered in side so that 12 staggered form of triangular prism is stored, right when expansion bracket 2 is unfolded
Claim telescopic rotating shaft 23 to be drawn close mutually toward center, make to pull open maximum distance between central rotating shaft 22, triangular prism plane formula is made to be unfolded.
In a preferred embodiment of the invention, the central rotating shaft 22 of expansion bracket 2 is connected with 13 upper end of shaft, expansion bracket 2
The expansion and gathering of triangular prism 12 are driven when flexible by shaft 13.
In above-mentioned technical proposal, blackboard unit group 1 includes triangular prism 12 and shaft 13, and expansion bracket 2 includes hack lever 21, center
Shaft 22, telescopic rotating shaft 23 realize that triangular prism 12 turns face by the rotation of shaft 13, by the flexible realization of expansion bracket 2 black
The expansion and gathering of plate unit group 1.
Further, when triangular prism 12 is all unfolded by expansion bracket 2, the usable floor area of blackboard can maximize, and
Make three faces of triangular prism 12 that can fully use by the rotation of shaft 13, when content of courses amount is more, without anti-
Multiple blackboard wiping, can be improved efficiency of teaching.When triangular prism 12 is collapsed by expansion bracket 2 in side, blackboard usable floor area can be with
Half when expansion is dwindled into, another side blank space can be used for projection teaching, to meet modern teaching multifunctionality.
Advantage is：The present invention provides a kind of three face rotary extension blackboards, and three times are realized in same space
Blackboard usable floor area, greatly extends the using effect of blackboard, in teaching process, reduce erase the board repeatedly and consume when
Between, efficiency of teaching is improved, because can stretch, blackboard is met and projects dual-purpose modern teaching purpose.
The foregoing is merely preferred embodiments of the present invention, are not intended to limit embodiments of the present invention and protection model
It encloses, to those skilled in the art, should can appreciate that all with made by description of the invention and diagramatic content
Equivalent replacement and obviously change obtained scheme, should all be included within the scope of the present invention.
Claims (5)
1. a kind of three face rotary extension blackboards, which is characterized in that including blackboard unit group, expansion bracket, the blackboard unit group packet
Include triangular prism, shaft, the expansion bracket includes hack lever, central rotating shaft, telescopic rotating shaft, and the blackboard unit group passes through the shaft
Connect the expansion bracket.
2. three faces rotary extension blackboard according to claim 1, which is characterized in that the blackboard unit group by several three
Prism, which connects, to be formed.
3. three faces rotary extension blackboard according to claim 1, which is characterized in that the triangular prism turns equipped with vertical center
Hole, the shaft pass through the center turn hole series winding triangular prism.
4. three faces rotary extension blackboard according to claim 1, which is characterized in that the expansion bracket is led to by several hack levers
It crosses central rotating shaft and telescopic rotating shaft hinge is formed.
5. three faces rotary extension blackboard according to claim 1, which is characterized in that the expansion bracket central rotating shaft and described
Shaft upper end connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810079623.0A CN108357246A (en) | 2018-01-26 | 2018-01-26 | A kind of three face rotary extension blackboards |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810079623.0A CN108357246A (en) | 2018-01-26 | 2018-01-26 | A kind of three face rotary extension blackboards |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108357246A true CN108357246A (en) | 2018-08-03 |
Family
ID=63007353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810079623.0A Pending CN108357246A (en) | 2018-01-26 | 2018-01-26 | A kind of three face rotary extension blackboards |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108357246A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2654367Y (en) * | 2003-11-22 | 2004-11-10 | 申利宾 | Window shutter type blackboard |
| CN201320897Y (en) * | 2008-12-09 | 2009-10-07 | 王海宇 | Rotary blackboard |
| CN203592828U (en) * | 2013-12-06 | 2014-05-14 | 安徽理工大学 | Novel three-surface turning-over type blackboard |
| CN204687636U (en) * | 2015-04-20 | 2015-10-07 | 冯奕嘉 | A kind of blackboard of rotatable flexible formula |
| CN105270044A (en) * | 2014-06-16 | 2016-01-27 | 东北林业大学 | Multifunctional three-face turning blackboard based on cam intermittence motion mechanism |
-
2018
- 2018-01-26 CN CN201810079623.0A patent/CN108357246A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2654367Y (en) * | 2003-11-22 | 2004-11-10 | 申利宾 | Window shutter type blackboard |
| CN201320897Y (en) * | 2008-12-09 | 2009-10-07 | 王海宇 | Rotary blackboard |
| CN203592828U (en) * | 2013-12-06 | 2014-05-14 | 安徽理工大学 | Novel three-surface turning-over type blackboard |
| CN105270044A (en) * | 2014-06-16 | 2016-01-27 | 东北林业大学 | Multifunctional three-face turning blackboard based on cam intermittence motion mechanism |
| CN204687636U (en) * | 2015-04-20 | 2015-10-07 | 冯奕嘉 | A kind of blackboard of rotatable flexible formula |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206147962U (en) | Art design teaching device | |
| CN108357246A (en) | A kind of three face rotary extension blackboards | |
| CN205997566U (en) | A kind of convenient regulation and the English teaching auxiliary device of wide adaptability | |
| CN207291482U (en) | Special drawing board in a kind of fine arts student room | |
| CN207403437U (en) | A kind of dismountable painting drawing board | |
| CN206367319U (en) | A kind of Gymnastics Teaching Multifunctional demonstration device | |
| CN202271725U (en) | Wet machine erasing blackboard | |
| CN107160917A (en) | A kind of semi-automatic erasing type spool blackboard | |
| CN206516102U (en) | A kind of human resource management instructional device | |
| CN205523232U (en) | Multi -media presentation device | |
| CN206584604U (en) | Multifunction rolling shaft type law teaching aid | |
| CN206254694U (en) | One kind removes word trace blackboard automatically | |
| CN205910929U (en) | Teaching model dissects in removable throat | |
| CN207711654U (en) | A kind of blackboard suitable for language teaching | |
| CN206210194U (en) | Economical management teaching device | |
| CN208789336U (en) | It is a kind of can dust suction and the blackboard that is convenient for carrying | |
| CN205121993U (en) | Ideological and political work teaching is with show board | |
| CN206678653U (en) | A kind of dust-free black board eraser | |
| CN216001999U (en) | Multifunctional blackboard of university's teaching usefulness | |
| CN206431942U (en) | A kind of stage teaching aid that visitor's teaching is created for DIY | |
| CN208922550U (en) | Impart rudimentary knowledge to beginners early education character learning pronunciation teaching suit | |
| CN208469443U (en) | A kind of raw multifunction drawing board used of art | |
| CN202847263U (en) | Dustproof blackboard eraser | |
| CN210777311U (en) | Music education demonstrating board | |
| CN208247853U (en) | A kind of saturating platform of the imitation fine arts |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180803 |
|
| WD01 | Invention patent application deemed withdrawn after publication |