CN204382976U - Mathematics drawing teaching aid - Google Patents
Mathematics drawing teaching aid Download PDFInfo
- Publication number
- CN204382976U CN204382976U CN201520014993.8U CN201520014993U CN204382976U CN 204382976 U CN204382976 U CN 204382976U CN 201520014993 U CN201520014993 U CN 201520014993U CN 204382976 U CN204382976 U CN 204382976U
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- China
- Prior art keywords
- link rod
- short
- long
- tubular rivet
- long link
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Abstract
The utility model discloses a kind of mathematics drawing teaching aid, Suction cup assembly is connected with in the shrinkage pool of base plate corner, base plate is connected with long link rod A in turn by long tubular rivet, long link rod B, long link rod D is connected with by short tubular rivet at the other end of long link rod A, long link rod C is connected with by short tubular rivet at the other end of long link rod B, the other end of long link rod D4 and long link rod C is interconnected by short tubular rivet, paintbrush assembly is slidably connected in its interconnective short tubular rivet, short link rod A is connected with by short tubular rivet in the middle of long link rod A, short link rod B is connected with by short tubular rivet in the middle of long link rod B, the other end of short link rod A and short link rod B is interconnected by short tubular rivet, sliding pin assembly is slidably connected in its interconnective short tubular rivet, base plate is connected with in the square groove be provided with the square chute board being provided with groove slideway.It is a kind of structure mathematics drawing teaching aid simple, easy to use.
Description
Technical field
The utility model relates to a kind of teaching aid, particularly relates to a kind of mathematics drawing teaching aid, belongs to mathematical education teaching aid technical field.
Background technology
Mathematical education must relate to draws various mathematic graph, on blackboard, student's profound lesson and understand its concept must could be allowed by graphing in teaching process, undertaken by the combination of the multiple types of tools such as set square, protractor during picture, teaching aid carry many, draw waste time and energy, add the difficulty that teacher draws, and there is larger error in the figure drawn, causes the shape of figure nonstandard, the visual experience of student can be affected, affect teaching efficiency and quality of instruction.
Summary of the invention
In order to solve the problem, the purpose of this utility model is to provide a kind of mathematics drawing teaching aid, adopt four long link rods and two short link rods to connect to form by tubular rivet the overall structure that can rotate arbitrarily flexibly and form six link rod pattern visual evoked potentials devices, slided along the mathematic graph groove slideway designed in advance by sliding pin at its short stub end, on blackboard, then drawn the figure suitably amplified by paintbrush at long stub end, figure is accurate, time saving and energy saving, improve the visual impression of student, improve teaching efficiency and quality of instruction.
The utility model solves the technical scheme that its technical problem adopts: mathematics drawing teaching aid, it is made up of long link rod A, long link rod B, long link rod C, long link rod D, short link rod A, short link rod B, long tubular rivet, short tubular rivet, base plate, Suction cup assembly, square chute board, sliding pin assembly, paintbrush assembly.Suction cup assembly is connected with in the shrinkage pool of base plate corner, four Suction cup assemblies can adsorb with blackboard simultaneously be connected, long link rod A is connected with in turn by long tubular rivet in the shrinkage pool of base plate side, long link rod B, long link rod D is connected with by short tubular rivet at the other end of long link rod A, long link rod C is connected with by short tubular rivet at the other end of long link rod B, the other end of long link rod D4 and long link rod C is interconnected by short tubular rivet, paintbrush assembly is slidably connected in its interconnective short tubular rivet, short link rod A is connected with by short tubular rivet in the middle of long link rod A, short link rod B is connected with by short tubular rivet in the middle of long link rod B, the other end of short link rod A and short link rod B is interconnected by short tubular rivet, sliding pin assembly is slidably connected in its interconnective short tubular rivet, base plate in the square groove be provided be connected with square chute board.Described paintbrush assembly is made up of band external thread sleeve, long nut, locating pad, long stage clip, knurled nut, paintbrush, long link rod D is fixed with long nut, the hole of the short tubular rivet that the Kong Yuchang link rod C of long nut is connected with long link rod D is corresponding, long nut has been threaded band external thread sleeve, pass short tubular rivet with external thread sleeve outer end and be connected with knurled nut on the screw thread of its external end head, band external thread sleeve in the shrinkage pool be provided be connected with long stage clip, locating pad, paintbrush from inside to outside in turn, and paintbrush can be connected with blackboard.Described sliding pin assembly is made up of sliding pin, protecting cover, short stage clip, spring shield, I shape knurled nut, short link rod B is fixed with spring shield, sliding pin is connected with by short stage clip in spring shield, the outer end of sliding pin is passed the hole of spring shield and is connected with I shape knurled nut by the screw thread that its termination is provided with, the inner of sliding pin can be connected with square chute board through its termination of endoporus of the short tubular rivet that short link rod B is connected with short link rod A, is fixed on short link rod A with the inner protecting cover be slidably connected of sliding pin.Described square chute board is multiple, and each square chute board is provided with different groove slideway.The screw thread that described long nut is connected with band external thread sleeve is fine thread.
The beneficial effects of the utility model are: by the six link rod pattern visual evoked potentials devices drawing adopting four long link rods and two short link rods to consist of the overall structure that can rotate arbitrarily flexibly that tubular rivet connects to form, figure is accurate, time saving and energy saving, improve the visual impression of student, improving teaching efficiency and quality of instruction, is a kind of structure mathematics drawing teaching aid simple, easy to use.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
Fig. 1 is the structural representation of the utility model mathematics drawing teaching aid.
Fig. 2 is the plan structure schematic diagram of Fig. 1.
Fig. 3 is A-A sectional structure schematic diagram of Fig. 1.
Fig. 4 is the B structure for amplifying schematic diagram of Fig. 3.
Fig. 5 is the C structure for amplifying schematic diagram of Fig. 3.
Fig. 6 is the structural representation of the square chute board with curvilinear coordinate figure connected in star slideway.
Fig. 7 is the structural representation of one of the using state of Fig. 1.
Fig. 8 is the structural representation of the using state two of Fig. 1.
Fig. 9 is the structural representation of the using state three of Fig. 1.
Figure 10 is the structural representation of the using state four of Fig. 1.
Reference numeral
1, long link rod A 2, long link rod B 3, long link rod C 4, long link rod D 5, short link rod A
6, short link rod B 7, long tubular rivet 8, short tubular rivet 9, base plate
10, Suction cup assembly 11, square chute board 12, sliding pin assembly 13, paintbrush assembly
14, groove slideway 21, band external thread sleeve 22, long nut 23, locating pad
24, long stage clip 25, knurled nut 26, paintbrush 31, sliding pin 32, protecting cover
33, short stage clip 34, spring shield 35, I shape knurled nut 40, blackboard.
Detailed description of the invention
Refer to Fig. 1 to Fig. 5, mathematics drawing teaching aid, it is made up of long link rod A, long link rod B, long link rod C, long link rod D, short link rod A, short link rod B, long tubular rivet, short tubular rivet, base plate, Suction cup assembly, square chute board, sliding pin assembly, paintbrush assembly.Suction cup assembly 10 is connected with in the shrinkage pool of base plate 9 four jiaos, four Suction cup assemblies 10 can adsorb with blackboard 40 simultaneously be connected, long link rod A 1 is connected with in turn by long tubular rivet 7 in the shrinkage pool of base plate 9 side, long link rod B 2, long link rod D 4 is connected with by short tubular rivet 8 at the other end of long link rod A 1, long link rod C 3 is connected with by short tubular rivet 8 at the other end of long link rod B 2, long link rod D 4 is interconnected by short tubular rivet 8 with the other end of long link rod C 3, paintbrush assembly 13 is slidably connected in its interconnective short tubular rivet 8, short link rod A 5 is connected with by short tubular rivet 8 in the middle of long link rod A 1, short link rod B 6 is connected with by short tubular rivet 8 in the middle of long link rod B 2, short link rod A 5 is interconnected by short tubular rivet 8 with the other end of short link rod B 6, sliding pin assembly 12 is slidably connected in its interconnective short tubular rivet 8, base plate 9 in the square groove be provided be connected with square chute board 11.Described paintbrush assembly 13 is by band external thread sleeve 21, long nut 22, locating pad 23, long stage clip 24, knurled nut 25, paintbrush 26 is formed, long link rod D 4 is fixed with long nut 22, the hole of the short tubular rivet 8 that the Kong Yuchang link rod C 3 of long nut 22 is connected with long link rod D 4 is corresponding, long nut 22 has been threaded band external thread sleeve 21, pass short tubular rivet 8 with external thread sleeve 21 outer end and be connected with knurled nut 25 on the screw thread of its external end head, band external thread sleeve 21 in the shrinkage pool be provided be connected with long stage clip 24 from inside to outside in turn, locating pad 23, paintbrush 26, paintbrush 26 can be connected with blackboard 40.Described sliding pin assembly 12 is by sliding pin 31, protecting cover 32, short stage clip 33, spring shield 34, I shape knurled nut 35 is formed, short link rod B 6 is fixed with spring shield 34, sliding pin 31 is connected with by short stage clip 33 in spring shield 34, the outer end of sliding pin 31 is passed the hole of spring shield 34 and is connected with I shape knurled nut 35 by the screw thread that its termination is provided with, the inner of sliding pin 31 can be connected with square chute board 11 through its termination of endoporus of the short tubular rivet 8 that short link rod B 6 is connected with short link rod A 5, the protecting cover 32 be slidably connected with sliding pin 31 the inner is fixed on short link rod A 5.Described square chute board 11 is multiple, and each square chute board 11 is provided with different groove slideway 14.The screw thread that described long nut 22 is connected with band external thread sleeve 21 is fine thread.
Structural principle and using method: this device is six link rod pattern visual evoked potentials devices of employing four long link rods and two short link rod compositions, and the ratio of amplification adjusts by long link rod or short link rod length.Long link rod A 1 and long link rod B 2 is movably connected on base plate 9 by long tubular rivet 7, and other each link rods are all flexibly connected by short tubular rivet 8, forms an overall structure that can rotate arbitrarily flexibly.Base plate 9 is adsorbed on blackboard 40 by four Suction cup assemblies 10 arranged in four corner apertures, can adsorb easily and take off this device.Sliding pin assembly 12 is connected with by spring shield 34 and protecting cover 32 in the short tubular rivet 8 that short link rod A 5, short link rod B 6 link connect.Paintbrush assembly 13 is connected with by long nut 22 in the short tubular rivet 8 that long link rod C 3 is connected with long link rod D 4 link.Square chute board 11 is connected with in the square groove of base plate 9, square chute board 11 is can Replacement Part, each square chute board 11 is respectively equipped with the groove slideway 14 of different mathematic graph, such as, on Fig. 1 is circular groove slideway 14, on Fig. 6 is the groove slideway 14 of curvilinear coordinate figure, can carry out designing and producing and changing according to teaching needs.By the slip of head in groove slideway 14 of the sliding pin 31 on sliding pin assembly 12, drive the paintbrush 26 of paintbrush assembly 13 to draw the figure identical with groove slideway 14 on blackboard 40 by link rod, paintbrush 26 can be chalk or slate pencil.During use, best both hands use simultaneously, and base plate 9 is adsorbed on blackboard 40 1 rear flank, and left hand buttresses knurled nut 25 gently, and the right hand buttresses I shape knurled nut 35 gently and carries out rotating along groove slideway 14.As Fig. 7 when sliding pin 31 enters groove slideway 14 starting point, paintbrush 26 also enters starting point, then returns Fig. 7 by Fig. 8, Fig. 9, Figure 10 and completes drawing.
Claims (5)
1. a mathematics drawing teaching aid, by long link rod A, long link rod B, long link rod C, long link rod D, short link rod A, short link rod B, long tubular rivet, short tubular rivet, base plate, Suction cup assembly, square chute board, sliding pin assembly, paintbrush assembly forms, it is characterized in that: in the shrinkage pool of base plate (9) corner, be connected with Suction cup assembly (10), four Suction cup assemblies (10) can be adsorbed with blackboard (40) are simultaneously connected, long link rod A(1 is connected with in turn by long tubular rivet (7)) in the shrinkage pool of base plate (9) side, long link rod B(2), at long link rod A(1) the other end be connected with long link rod D(4 by short tubular rivet (8)), at long link rod B(2) the other end be connected with long link rod C(3 by short tubular rivet (8)), long link rod D(4) with long link rod C(3) the other end be interconnected by short tubular rivet (8), paintbrush assembly (13) is slidably connected in its interconnective short tubular rivet (8), at long link rod A(1) in the middle of be connected with short link rod A(5 by short tubular rivet (8)), at long link rod B(2) in the middle of be connected with short link rod B(6 by short tubular rivet (8)), short link rod A(5) with short link rod B(6) the other end be interconnected by short tubular rivet (8), sliding pin assembly (12) is slidably connected in its interconnective short tubular rivet (8), base plate (9) is connected with in the square groove be provided with square chute board (11).
2. mathematics drawing teaching aid according to claim 1, it is characterized in that: described paintbrush assembly (13) is by band external thread sleeve (21), long nut (22), locating pad (23), long stage clip (24), knurled nut (25), paintbrush (26) is formed, at long link rod D(4) on be fixed with long nut (22), the Kong Yuchang link rod C(3 of long nut (22)) with long link rod D(4) hole of short tubular rivet (8) that is connected is corresponding, long nut (22) has been threaded band external thread sleeve (21), band external thread sleeve (21) outer end is passed short tubular rivet (8) and on the screw thread of its external end head, is connected with knurled nut (25), band external thread sleeve (21) in the shrinkage pool be provided be connected with long stage clip (24) from inside to outside in turn, locating pad (23), paintbrush (26), paintbrush (26) can be connected with blackboard (40).
3. mathematics drawing teaching aid according to claim 1, it is characterized in that: described sliding pin assembly (12) is by sliding pin (31), protecting cover (32), short stage clip (33), spring shield (34), I shape knurled nut (35) is formed, at short link rod B(6) on be fixed with spring shield (34), sliding pin (31) is connected with by short stage clip (33) in spring shield (34), the outer end of sliding pin (31) is passed the hole of spring shield (34) and is connected with I shape knurled nut (35) by the screw thread that its termination is provided with, the inner of sliding pin (31) is through short link rod B(6) with short link rod A(5) its termination of endoporus of short tubular rivet (8) of being connected can be connected with square chute board (11), the protecting cover (32) be slidably connected with sliding pin (31) the inner is fixed on short link rod A(5) on.
4. mathematics drawing teaching aid according to claim 1, is characterized in that: described square chute board (11) is for multiple, and each square chute board (11) is provided with different groove slideway (14).
5. mathematics drawing teaching aid according to claim 2, is characterized in that: the screw thread that described long nut (22) is connected with band external thread sleeve (21) is fine thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520014993.8U CN204382976U (en) | 2015-01-10 | 2015-01-10 | Mathematics drawing teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520014993.8U CN204382976U (en) | 2015-01-10 | 2015-01-10 | Mathematics drawing teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204382976U true CN204382976U (en) | 2015-06-10 |
Family
ID=53355725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520014993.8U Expired - Fee Related CN204382976U (en) | 2015-01-10 | 2015-01-10 | Mathematics drawing teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204382976U (en) |
-
2015
- 2015-01-10 CN CN201520014993.8U patent/CN204382976U/en not_active Expired - Fee Related
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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: 20150610 Termination date: 20160110 |