CN206179316U - Mathematical teaching aid - Google Patents
Mathematical teaching aid Download PDFInfo
- Publication number
- CN206179316U CN206179316U CN201621139273.5U CN201621139273U CN206179316U CN 206179316 U CN206179316 U CN 206179316U CN 201621139273 U CN201621139273 U CN 201621139273U CN 206179316 U CN206179316 U CN 206179316U
- Authority
- CN
- China
- Prior art keywords
- chalk
- plate
- board
- education
- shell
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a mathematical teaching aid, including the teaching board, the left side bottom swing joint of teaching board has the device with subtraction, the chalk case is installed in the bottom left side of teaching board, the inside swing joint of chalk case has movable standing groove, the top of chalk case articulates there is the top cap, the right side fixed mounting of chalk case has the pen clip groove, the inside in pen clip groove is equipped with chalk clip. This mathematical teaching aid, through the activity teaching board, add the cooperation of subtraction device and chalk case, the carousel passes through the bull stick and the bedding -in of bearings is rotated on the bottom plate, make the digit on the corresponding number plate that produces at random operate, the interest of teaching has been improved, teaching effects has been improved, the chalk case makes the chalk concentrate and places, chalk clip presss from both sides the chalk and gets the use, it leads to the hand to receive the damage to avoid the teacher directly to take the chalk, rotate rotatory handle and pass through screw rod drive top support upward movement, it uses to make things convenient for the chalk to last, conveniently write.
Description
Technical field
This utility model is related to teaching technique field, specially a kind of mathematics teaching aid.
Background technology
In mathematical education, coordinate, number axis, various geometric figures and the fortune to pupil's professor's addition and subtraction for frequently involving
During calculation, it is required for teacher to draw to come in blackboard left-hand seat, such as utility model patent of Application No. 201520802688.5, including
Graphic Panel, support, roller, base plate, universal wheel, flat board, right electric pushrod, push-pull bar, projector, instructional template, concave-board and
Left electric pushrod, base plate has universal wheel, and support is provided with the left of base plate upper end, and support is provided with Graphic Panel, base plate upper end
Middle part be provided with left electric pushrod, left electric pushrod is connected with flat board, and planar bottom surface is provided with roller, and washer is provided with groove
Plate, although the patent can carry out projection teaching, when actually used, the teaching efficiency of raising is unsatisfactory, and does not protect
Shield teacher.
Utility model content
The purpose of this utility model is to provide a kind of mathematics teaching aid, to solve the problems, such as above-mentioned background technology in propose.
For achieving the above object, this utility model provides following technical scheme：A kind of mathematics teaching aid, including board of education, institute
The left side bottom for stating board of education is connected with signed magnitude arithmetic(al) device, and the signed magnitude arithmetic(al) device includes base plate, the bottom
The left circumference that rotating disk, the rotating disk and base plate are connected with the left of plate is mounted on digiboard, and the rotating disk is by turning
Bar is connected with base plate, and the bull stick is provided with bearing with the junction of base plate, and the right side circumference of the rotating disk is provided with extended loop
Plate, the extension ring flat-plate is connected by change with base plate, and the bottom left side of the board of education is provided with chalk case, the chalk case
Internal activity be connected with movable placing trough, the top of the chalk case is hinged with top cover, and peace is fixed on the right side of the chalk case
Equipped with pen clip groove, the inside of the pen clip groove is provided with chalk clamp, and the chalk clamp includes shell, and the inner tip of the shell is justified
Apical ring is installed, the outer wall of the shell is provided with handss groove, and the bottom of the shell is provided with rotating handle, and the rotating handle is by connecting week
Switch through ring to be connected with shell, the inner bottom of the shell is provided with jacking, and the bottom of the jacking is installed with screw rod, described
Screw rod sequentially passes through shell and rotating handle, and the screw rod is provided with thread bush with the junction of rotating handle.
Preferably, the front top of the board of education is provided with activity teaching plate, top of the activity teaching plate or so two
Side is mounted on the second buckle, and the top left and right sides of the board of education is mounted on the first buckle, first buckle and
Two buckles are buckle group structure, and the right side bottom of the activity teaching plate is provided with regulation support feet, the regulation support feet bag
Fixed installation plate is included, support sole is provided with the right side of the fixed installation plate, the support sole passes through adjustable telescopic rod and consolidates
Determine installing plate to be connected.
Preferably, the first permanent magnet is installed, the left side of the board of education is installed on the right side of the signed magnitude arithmetic(al) device
There is the second permanent magnet, first permanent magnet is connected with the second permanent magnetism ferromagnetism.
Preferably, the bottom of the board of education is provided with link.
Preferably, the inwall of the shell is provided with optic panel.
Compared with prior art, the beneficial effects of the utility model are：The mathematics teaching aid, by activity teaching plate, plus-minus
The cooperation of method arithmetic unit and chalk case, rotating disk is rotated on base plate by the cooperation of bull stick and bearing, makes the phase for randomly generating
Numeral on correspondence digiboard carries out computing, improves the interest of teaching, improves teaching efficiency, and chalk case concentrates chalk
Place, chalk clamp carries out gripping and use to chalk, it is to avoid teacher's chalk of directly taking causes hand to sustain damage, and rotates rotating handle
Drive jacking to move upwards by screw rod, facilitate chalk persistently to use, conveniently write.
Description of the drawings
Fig. 1 is this utility model structural representation；
Fig. 2 is signed magnitude arithmetic(al) apparatus structure schematic diagram of the present utility model；
Fig. 3 is regulation supporting foot structure schematic diagram of the present utility model；
Fig. 4 is pen clip slot structure schematic diagram of the present utility model；
Fig. 5 is chalk clamp structural representation of the present utility model.
In figure：1st, the first buckle, 2, activity teaching plate, the 3, second buckle, 4, board of education, 5, signed magnitude arithmetic(al) device,
501st, base plate, 502, digiboard, 503, rotating disk, 504, bull stick, 505, bearing, 506, extend ring flat-plate, 507, change, 6, chalk
Case, 7, link, the 8, first permanent magnet, the 9, second permanent magnet, 10, adjust support feet, 101, fixed installation plate, 102, support feet
Plate, 103, adjustable telescopic rod, 11, top cover, 12, chalk clamp, 121, apical ring, 122, optic panel, 123, shell, 124, screw rod,
125th, rotating handle, 126, handss groove, 127, jacking, 128, connection change, 129, thread bush, 13, movable placing trough, 14, pen clip groove.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of this utility model protection.
Fig. 1-5 are referred to, this utility model provides a kind of technical scheme：A kind of mathematics teaching aid, including board of education 4, it is described
The left side bottom of board of education 4 is connected with signed magnitude arithmetic(al) device 5, and the signed magnitude arithmetic(al) device 5 includes base plate 501, institute
The left side for stating base plate 501 is connected with the left circumference of rotating disk 503, the rotating disk 503 and base plate 501 and is mounted on digiboard
502, the rotating disk 503 is connected by bull stick 504 with base plate 501, and the bull stick 504 is provided with axle with the junction of base plate 501
505 are held, rotating disk 503 is rotated on base plate 501 by the cooperation of bull stick 504 and bearing 505, make the corresponding numeral for randomly generating
Numeral on plate 502 carries out computing, improves the interest of teaching, and the right side circumference of the rotating disk 503 is provided with extension ring flat-plate
506, the extension ring flat-plate 506 is connected by change 507 with base plate 501, and the cooperation for extending ring flat-plate 506 and change 507 improves
The rotating effect of rotating disk 503, it is to avoid the situation of interim card occurs in rotation process in rotating disk 503, the signed magnitude arithmetic(al) device 5
Right side is provided with the first permanent magnet 8, and the left side of the board of education 4 is provided with the second permanent magnet 9, first permanent magnet 8 and the
The magnetic of two permanent magnet 9 connects, and signed magnitude arithmetic(al) device 5 is fixed on into religion by the cooperation of the first permanent magnet 8 and the second permanent magnet 9
Learn on plate 4, the bottom of the board of education 4 is provided with link 7, set square is hung in board of education 4 by arranging link 7, carry
High teaching convenience, the bottom left side of the board of education 4 is provided with chalk case 6, and the internal activity of the chalk case 6 is connected with
Movable placing trough 13, makes chalk that the top of placement, the chalk case 6 can be concentrated to be hinged with top cover 11, institute by arranging chalk case 6
The right side for stating chalk case 6 is installed with pen clip groove 14, and the inside of the pen clip groove 14 is provided with chalk clamp 12, and chalk clamp 12 is to powder
Pen carries out gripping and uses, it is to avoid teacher's chalk of directly taking causes hand to sustain damage, and the chalk clamp 12 includes shell 123,
The inner tip circumference of the shell 123 is provided with apical ring 121, and the inwall of the shell 123 is provided with optic panel 122, bright finish
Plate 122 improves sliding effect of the chalk in shell 123, and the outer wall of the shell 123 is provided with handss groove 126, the shell 123
Bottom be provided with rotating handle 125, the rotating handle 125 is connected by connection change 128 with shell 123, the shell 123 it is interior
Portion bottom is provided with jacking 127, and the bottom of the jacking 127 is installed with screw rod 124, and the screw rod 124 sequentially passes through shell
123 and rotating handle 125, the screw rod 124 is provided with thread bush 129 with the junction of rotating handle 125, rotates rotating handle 125, leads to
Crossing screw rod 124 drives jacking 127 to move upwards, facilitates chalk persistently to use, and the front top of the board of education 4 is provided with movable religion
Plate 2 is learned, activity teaching plate 2 improves teaching efficiency, and the top left and right sides of the activity teaching plate 2 is mounted on the second buckle
3, the top left and right sides of the board of education 4 is mounted on the first buckle 1, and the buckle 3 of first buckle 1 and second is buckle group
Structure, is fixed, the right side bottom of the activity teaching plate 2 by the first buckle 1 and the second buckle 3 to activity teaching plate 2
Regulation support feet 10 is installed, is adjusted the activity teaching plate 2 after support feet 10 pairs is installed and is supported, conveniently write, institute
Stating regulation support feet 10 includes fixed installation plate 101, and the right side of the fixed installation plate 101 is provided with and supports sole 102, described
Spike plate 102 is connected by adjustable telescopic rod 103 with fixed installation plate 101.
Rotating disk 503 is rotated on base plate 501 by the cooperation of bull stick 504 and bearing 505, makes the corresponding number for randomly generating
Numeral on letter stencil 502 carries out computing, improves the interest of teaching, and chalk case 6 makes chalk concentrate placement, and chalk clamp 12 is to powder
Pen carries out gripping and uses, it is to avoid teacher's chalk of directly taking causes hand to sustain damage, and rotating handle 125 is rotated, by screw rod 124
Drive jacking 127 to move upwards, facilitate chalk persistently to use, the first buckle 1 and the second buckle 3 are carried out admittedly to activity teaching plate 2
It is fixed, adjust the activity teaching plate 2 after support feet 10 pairs is installed and be supported, conveniently write.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out various changes in the case of without departing from principle of the present utility model and spirit, repaiies
Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of mathematics teaching aid, including board of education, it is characterised in that：The left side bottom of the board of education is connected with addition and subtraction
Arithmetic unit, the signed magnitude arithmetic(al) device includes base plate, and rotating disk, the rotating disk and bottom are connected with the left of the base plate
The left circumference of plate is mounted on digiboard, and the rotating disk is connected by bull stick with base plate, the junction of the bull stick and base plate
Bearing is installed, the right side circumference of the rotating disk is provided with extension ring flat-plate, and the extension ring flat-plate is connected by change with base plate, institute
The bottom left side for stating board of education is provided with chalk case, and the internal activity of the chalk case is connected with movable placing trough, the chalk
The top of case is hinged with top cover, and pen clip groove is installed with the right side of the chalk case, and the inside of the pen clip groove is provided with chalk
Folder, the chalk clamp includes shell, and the inner tip circumference of the shell is provided with apical ring, and the outer wall of the shell is provided with handss
Groove, the bottom of the shell is provided with rotating handle, and the rotating handle is connected by connection change with shell, the inner bottom of the shell
End is provided with jacking, and the bottom of the jacking is installed with screw rod, and the screw rod sequentially passes through shell and rotating handle, the screw rod
Thread bush is installed with the junction of rotating handle.
2. a kind of mathematics teaching aid according to claim 1, it is characterised in that：The front top of the board of education is provided with activity
Board of education, the top left and right sides of the activity teaching plate is mounted on the second buckle, the top left and right sides of the board of education
It is mounted on the first buckle, first buckle and the second buckle are buckle group structure, the right side bottom of the activity teaching plate
Regulation support feet is installed, the regulation support feet includes fixed installation plate, on the right side of the fixed installation plate support feet is provided with
Plate, the support sole is connected by adjustable telescopic rod with fixed installation plate.
3. a kind of mathematics teaching aid according to claim 1, it is characterised in that：Install on the right side of the signed magnitude arithmetic(al) device
There is the first permanent magnet, the second permanent magnet, first permanent magnet and the second permanent magnetism ferromagnetism are installed on the left of the board of education
Connection.
4. a kind of mathematics teaching aid according to claim 1, it is characterised in that：The bottom of the board of education is provided with link.
5. a kind of mathematics teaching aid according to claim 1, it is characterised in that：The inwall of the shell is provided with optic panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621139273.5U CN206179316U (en) | 2016-10-20 | 2016-10-20 | Mathematical teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621139273.5U CN206179316U (en) | 2016-10-20 | 2016-10-20 | Mathematical teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206179316U true CN206179316U (en) | 2017-05-17 |
Family
ID=58680308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621139273.5U Expired - Fee Related CN206179316U (en) | 2016-10-20 | 2016-10-20 | Mathematical teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206179316U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112102711A (en) * | 2020-09-15 | 2020-12-18 | 南京航空航天大学 | Portable random number generation device for cryptography |
-
2016
- 2016-10-20 CN CN201621139273.5U patent/CN206179316U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112102711A (en) * | 2020-09-15 | 2020-12-18 | 南京航空航天大学 | Portable random number generation device for cryptography |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170517 Termination date: 20171020 |