CN201045678Y - Matrix plate of plane coordinate system - Google Patents
Matrix plate of plane coordinate system Download PDFInfo
- Publication number
- CN201045678Y CN201045678Y CNU2006200225082U CN200620022508U CN201045678Y CN 201045678 Y CN201045678 Y CN 201045678Y CN U2006200225082 U CNU2006200225082 U CN U2006200225082U CN 200620022508 U CN200620022508 U CN 200620022508U CN 201045678 Y CN201045678 Y CN 201045678Y
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Abstract
The utility model relates to a plane rectangular coordinates system network plate, belonging to the technical field of middle school teaching aids and learning aids. The utility model comprises a base plate which is provided with a hollow square-column hole which is internally cast at each quadrate grid, shouldered hollow square-columns which can be plug-bushed on the hollow square-column hole, a mini-type universal wheel which is provided with a screw head structure on the upper portion, a perforated plastic spinning post which is provided with a nut on the lower portion, a plastic arrow, and a general plastic nut. The utility model is characterized in that the plane rectangular coordinates system knowledge is printed on the back face of the base plate, quadrate grids are printed on the front face of the base plate, and the perforated plastic spinning post which is provided with a nut on the lower portion, the plastic arrow, and the general plastic nut can be screwed on the mini-type universal wheel, the mini-type universal wheel is moved or fixed in the space between the shouldered hollow square-columns on the base plate, and various rubber vacuum suction labels can be directly adsorbed on the base plate. The utility model can be conveniently, flexibly, and visually used in class, which is in favor of explanation and comprehension to knowledge points. The utility model has the advantages of good utilization effect and convenient manufacture.
Description
Technical field:
The utility model relates to a kind of plane right-angle coordinate waffle slab, belongs to middle school teaching aid and learning aid technical field.
Background technology:
Relate to the content of setting up plane right-angle coordinate in the middle school mathematics, remove that to rigidly connect several of touching this part knowledge extracurricular, the teacher will tirelessly advise the plane right-angle coordinate that draws of standard model on blackboard, must spend some time and efforts, takies the time that new knowledge is imparted knowledge to students.Use current multimedia technology such as computer, dislike picture too fast again, process is not obvious, and teacher's inconvenience is explained pointedly, and part student is difficult to experience the forming process of knowledge.
Summary of the invention:
The purpose of this utility model is the deficiency that overcomes prior art, provides a kind of and can use, help the plane right-angle coordinate waffle slab that the student understands mathematical knowledge easily in the classroom.
The technical solution of the utility model is: the plane right-angle coordinate waffle slab is printed on plane right-angle coordinate knowledge by the back side, the front is printed on square net and is cast with the foundation plate of hollow square column hole (3) in each square net, but the band shoulder hollow square column of sleeve on hollow square column hole (3), the miniature universal wheel of top band screw head formation, and the porose plastics of bottom band nut revolve post and plastics arrow, the common plastics nut is formed, the porose plastics of bottom band nut revolve post and plastics arrow, the common plastics nut can be screwed on the miniature universal wheel, miniature universal wheel is with on foundation plate in the wheel road between the hollow square column of shoulder along mesh lines and is moved or fixing, and various rubber vacuum cup labels can directly be adsorbed on the foundation plate; There are two lanyard eyelets (2) the foundation plate upper end, the corner location front is embedded with magnet (1), the left and right sides respectively with the back side also oil pen's groove respectively.
Number of grid on the foundation plate determines that according to actual needs the needs that can satisfy the metering of teaching logarithmic axis unit get final product, and the plane right-angle coordinate knowledge that its back side is printed on is the middle school planimetric rectangular coordinates knowledge that teaching needs; The hollow square column (Fig. 3) of band shoulder but sleeve on the hollow square column hole (3) of foundation plate, hollow square column with shoulder can not allow miniature universal wheel (Fig. 4) arbitrarily break away from foundation plate (Fig. 1); The plastics arrow (Fig. 7) of common plastics nut (Fig. 6), bottom band band nut and porose plastics revolve post (Fig. 8) and can be screwed in as required on the miniature universal wheel (Fig. 4), be used for representing the point in the plane, and move or fixing along mesh lines in the wheel road of miniature universal wheel (Fig. 4) between the hollow square column (Fig. 3) of band shoulder.Miniature universal wheel (Fig. 4) enters the wheel road from the position (4) of foundation plate (Fig. 1).Various rubber vacuum cup labels (Fig. 9, Figure 10, Figure 11) can be used for being adsorbed on the foundation plate (4), and the quantity that the plastics arrow (Fig. 7) of common plastics nut (Fig. 6), bottom band band nut and porose plastics revolve post (Fig. 8) is determined according to teaching or study needs; Revolve aperture place, post (Fig. 8) top by porose plastics and tie knots, can use the oil pen at the waffle slab upper drawing circle as the center of circle at bottom band nut.The magnet of foundation plate corner location (can for circular, square etc.) is used for waffle slab is adsorbed on the irony blackboard, if blackboard is a non iron, then can tie knots by two the lanyard eyelets (2) on the foundation plate hangs over waffle slab on the blackboard; Oil pen's groove is used to lay thick core oil pen, is convenient to teacher's teaching such as punctuate, marking-up mother, setting-out on waffle slab and uses.
The utility model is put into coordinate plane on the waffle slab that plastics make, straight line and number axis and scale are clear, unit length and unit area are easy to regulation, " point " in the coordinate system used the porose plastics of the common plastics nut that matches with miniature universal wheel or bottom band nut to revolve post to replace, and vacuum available sucker label marks its letter or coordinate on a next door.The plastics arrow of representing the coordinate axis positive dirction also with miniature universal wheel carrying, can be adjusted, contrast and newly-built coordinate system.In addition, the critical piece of waffle slab can be made of plastic, manufacturing, easy to use.
An equilibrium point is found in use of the present utility model in conventional teaching and modern teaching, both helped teacher's demonstration and student and understood, and has saved time and efforts again, has improved classroom efficiency, and vivid and interesting; Both allow the top student easily learn, yielded to the backward pupil again.Advantages such as it is easy to use, flexible to have the classroom, can show middle school mathematics plane right-angle coordinate knowledge intuitively, comprehensively, helps explanation and understanding to the knowledge point, and result of use is good, and is easily manufactured.
Description of drawings:
Below in conjunction with drawings and Examples the utility model is further elaborated.
Fig. 1 looks synoptic diagram for the utility model foundation plate master;
Fig. 2 is the utility model foundation plate model sectional perspective synoptic diagram;
Fig. 3 is each plastic hollow square column synoptic diagram of the utility model band shoulder;
Fig. 4 is a miniature universal wheel synoptic diagram of the present utility model;
Fig. 5 is the plastic hollow square column assembled state synoptic diagram of miniature universal wheel of the utility model and band shoulder;
Fig. 6 is the utility model common plastics nut synoptic diagram;
Fig. 7 is the plastics arrow scheme of the utility model bottom band nut;
Fig. 8 revolves the post synoptic diagram for the porose plastics of the utility model bottom band nut;
Fig. 9 is the utility model rubber vacuum cup digital label synoptic diagram;
Figure 10 is the utility model rubber vacuum cup letter labels synoptic diagram;
Figure 11 is the utility model rubber vacuum cup word tag synoptic diagram.
Figure 12 is the coordinate characteristics figure that the utility model quadrantal points and axle are gone up point.
Among the figure: 1-magnet; 2-lanyard eyelet; 3-hollow square column hole; The 4-foundation plate.
Embodiment:
Shown in accompanying drawing 1～11, the plane right-angle coordinate waffle slab by the back side be printed on plane right-angle coordinate knowledge, the front is printed on 308 square nets and is cast with hollow square column hole (3) in each grid, hollow square column (Fig. 3) sleeves of 304 band shoulders are on hollow square column hole (3); Adopt the porose plastics of 5 of miniature universal wheels, 4 on common plastics nut, bottom band nut to revolve 2 of the plastics arrows of 4 on post, bottom band nut, and be used to be adsorbed on 35 of rubber vacuum cup digital labels (Fig. 9, Figure 10, Figure 11), 10 of letter labels, 4 of word tags on the foundation plate; Foundation plate (4) upper end has two lanyard eyelets (2), the left and right sides to have oil pen's groove, corner location front to be embedded with 4 blocks of magnet (1) respectively with the back side respectively.
Coordinate plane is put on the waffle slab that plastics make, straight line and number axis and scale are clear, unit length and unit area are easy to regulation, the porose plastics of " point " in the coordinate system by the common plastics nut that matches with miniature universal wheel or bottom band nut revolve post and replace, and mark its letter or coordinate on a next door with the vacuum cup label; Simultaneously, the miniature universal wheel of bearing point can be with on waffle slab in the wheel road between the hollow square column of shoulder along mesh lines and move or fixing.
The planimetric rectangular coordinates content that the foundation plate back side is printed on can comprise:
1, minute number axis, axle (straight line) divides the plane.
2, quadrantal points and axle are gone up the coordinate characteristics figure (seeing Figure 12) of point.
3, the coordinate of putting on the first and third quadrant angle bisector can be made as (a, a);
The second, the coordinate of putting on the four-quadrant angular bisector can be made as (b ,-b).
4, point (a b) with the distance of x axle is | b| with the distance of y axle is | a|.
5, parallel or to coincide with on the straight line of horizontal stroke (indulging) axle vertical (horizontal stroke) coordinate of 2 identical, but horizontal (indulging) coordinate difference.
6, point (a, (left side) moves x unit length to point (a+x, b) (or (a-x, b)) b) to the right;
Point (a b) makes progress (descending)) moves y unit length to point (a, b+y) (or (a, b-y)).
7, point (a, b) be symmetric points about the x axle be (a ,-b);
Point (a, b) be symmetric points about the y axle be (a, b);
Point (a, b) be symmetric points about initial point be (a ,-b);
8, some p
1(x
1, y
1) and p
2(x
2, y
2) between distance | p
1p
2|=√ (x
2-x
1)
2+ (y
2-y
1)
2
9, the coordinate of any point is (rcos α, rsin α) on the whole limit of angle α, r=|po|.
10, start, end are respectively p
1(x
1, y
1) and p
2(x
2, y
2) → p
1p
2=(x
2-x
1, y
2-y
1).
Claims (3)
1. plane right-angle coordinate waffle slab, it is characterized in that being printed on plane right-angle coordinate knowledge by the back side, the front is printed on square net and is cast with the foundation plate (4) of hollow square column hole (3) in each square net, but the band shoulder hollow square column of sleeve on hollow square column hole (3), the miniature universal wheel of top band screw head formation, and the porose plastics of bottom band nut revolve post and plastics arrow, the common plastics nut is formed, the porose plastics of bottom band nut revolve post and plastics arrow, the common plastics nut can be screwed on the miniature universal wheel, the wheel road of miniature universal wheel between the hollow square column of band shoulder on the foundation plate moves or fixing along mesh lines, and various rubber vacuum cup labels can directly be adsorbed on the foundation plate (4).
2. plane right-angle coordinate waffle slab according to claim 1 is characterized in that there are two lanyard eyelets (2) the foundation plate upper end, corner location is positive and the back side is embedded with magnet (1) respectively.
3. plane right-angle coordinate waffle slab according to claim 1 and 2 is characterized in that the left and right sides of foundation plate (4) also has oil pen's groove respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200225082U CN201045678Y (en) | 2006-11-09 | 2006-11-09 | Matrix plate of plane coordinate system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200225082U CN201045678Y (en) | 2006-11-09 | 2006-11-09 | Matrix plate of plane coordinate system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201045678Y true CN201045678Y (en) | 2008-04-09 |
Family
ID=39309147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200225082U Expired - Fee Related CN201045678Y (en) | 2006-11-09 | 2006-11-09 | Matrix plate of plane coordinate system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201045678Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108877403A (en) * | 2018-07-25 | 2018-11-23 | 刘蒙 | A kind of English teaching vocabulary displaying device |
-
2006
- 2006-11-09 CN CNU2006200225082U patent/CN201045678Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108877403A (en) * | 2018-07-25 | 2018-11-23 | 刘蒙 | A kind of English teaching vocabulary displaying device |
| CN108877403B (en) * | 2018-07-25 | 2020-09-15 | 刘蒙 | English teaching vocabulary display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080409 Termination date: 20101109 |