CN203910094U - Simple cuboid teaching aid - Google Patents
Simple cuboid teaching aid Download PDFInfo
- Publication number
- CN203910094U CN203910094U CN201420360820.7U CN201420360820U CN203910094U CN 203910094 U CN203910094 U CN 203910094U CN 201420360820 U CN201420360820 U CN 201420360820U CN 203910094 U CN203910094 U CN 203910094U
- Authority
- CN
- China
- Prior art keywords
- teaching aid
- navigation button
- groove
- drag rope
- cross bar
- 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
Links
Abstract
The utility model belongs to the teaching demonstration instrument field and relates to a simple cuboid teaching aid. The simple cuboid teaching aid comprises transverse rods, longitudinal rods and a closed type elastic pull rope; the transverse rods and the longitudinal rods form a cuboid frame; grooves are distributed at the peripheries of the transverse rods and the longitudinal rods; each groove comprises a first arc-shaped segment and a first inclined segment; the elastic pull rope is provided with positioning buttons; each positioning button is provided with a second arc-shaped segment and a second inclined segment which are matched with a corresponding groove; a through hole is formed at the tail end of each positioning button; the positioning buttons are installed on the elastic pull rope through the through holes; and the transverse rods and the longitudinal rods are respectively provided with scale marks. The simple cuboid teaching aid has the advantages of reasonable structure, convenient demonstration, safe use, accurate position adjustment and precise demonstration effect, and can conveniently, fast and accurately demonstrate relationships between a point, a line, a surface and a solid.
Description
Technical field
The utility model relates to the simple and easy teaching aid of a kind of rectangular parallelepiped, belongs to teaching demonstration field of tool.
Background technology
Student is in learning process, conventionally to three-dimensional mid point, the understanding of line and face is comparatively abstract, although also there is at present three-dimensional demonstration teaching aid, but normally on the limit of rectangular parallelepiped, hook is set in existing structure, demonstrate by lanyard at hook two ends, when use, hook is easily hung hand, also be not easy to carry, and hook position is fixed, can not be according to distance fine regulation, can not accurately demonstrate, and normally a lanyard can only be demonstrated a line in rectangular parallelepiped in presentation process, in the time needing being related to of presentation site and line and etween the lines, need two even many lanyards demonstrate, complex operation, and be not easy to understand, also there is the three-dimensional teaching aid of part can only demonstrate face and three-dimensional relation, all can not convenient, fast, the accurate and safe teaching aid of demonstrating relation between point, line, surface and solid.
Utility model content
The technical problems to be solved in the utility model is: provide a kind of rational in infrastructure, easy to use, safe, easily carry, convenient demonstration, is convenient to understand and the simple and easy teaching aid of rectangular parallelepiped that can fine adjustment distance.
The simple and easy teaching aid of rectangular parallelepiped described in the utility model, comprise cross bar, vertical pole and closed type elastic drag rope, cross bar and vertical pole composition rectangular parallelepiped frame, cross bar and vertical pole peripheral distribution are fluted, and groove comprises the first segmental arc and the first tilting section, and navigation button is set on elastic drag rope, navigation button comprises the second segmental arc and the second tilting section that match with groove, navigation button end arranges through hole, and navigation button is arranged on elastic drag rope by through hole, and scale is all set on cross bar and vertical pole.
Navigation button is housed on elastic drag rope, navigation button can be movable on elastic drag rope by through hole, can be according to the different navigation buttons that need to place varying number on elastic drag rope, the stay cord of closed type can be after the quantity of having selected required navigation button, elastic drag rope openend to be fastened, in the time that needs increase or reduce navigation button, elastic drag rope is untied and increased or reduce, easy to operate; By the navigation button and the groove that match, elastic drag rope can be located, hook, has not avoided scratch, can use safely and carry; Scale is all set on cross bar and vertical pole, can be according to the accurate running fix button of scale the position on cross bar, vertical pole, realize accurately demonstration; In the time that the navigation button on elastic drag rope exceedes 3,3 navigation buttons just can form triangle projective planum, can demonstrate the relation of triangle projective planum and rectangular parallelepiped, when select wherein two hang over the relation that just can demonstrate Points And lines between cross bar, vertical pole, or the position of demonstration rectangular parallelepiped center line, 3 navigation buttons can form quadrilateral, the like multiple navigation buttons can form polygon; When the segmental arc of groove and navigation button and tilting section can ensure to fix, difficult drop-off; Groove does not have burr, can not injure user when use, uses safety.
Described groove is set to 3～6, and the navigation button on closed type elastic drag rope is set to 3～5.Can set the number needing according to service condition; 3～5 navigation buttons can meet the relation between conventional presentation site, line or face and rectangular parallelepiped, directly perceived, easily understand.
The beneficial effects of the utility model are:
Rational in infrastructure, facilitate demo function, and use safety, can accurate adjustment position, reach accurate demonstration effect, be a kind of can convenient, fast and accurate demonstration point, line, surface and solid between the teaching aid of relation.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation that the distribution of Fig. 1 further groove and groove coordinate with navigation button.
Fig. 3 is the structural representation of closed type elastic drag rope and navigation button in Fig. 1.
In figure: 1, vertical pole 2, cross bar 3, groove 4, elastic drag rope 5, navigation button 6, through hole 7, the first tilting section 8, the first segmental arc 9, the second segmental arc 10, the second tilting section.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
As shown in FIG. 1 to 3, the simple and easy teaching aid of rectangular parallelepiped described in the utility model, comprise cross bar 2, vertical pole 1 and closed type elastic drag rope 4, cross bar 2 and vertical pole 1 form rectangular parallelepiped frame, cross bar 2 and vertical pole 1 peripheral distribution fluted 3, groove 3 comprises the first segmental arc 8 and the first tilting section 7, navigation button 5 is set on elastic drag rope 4, navigation button 5 comprises the second segmental arc 9 and the second tilting section 10 that match with groove 3, navigation button 5 ends arrange through hole 6, navigation button 5 is arranged on elastic drag rope 4 by through hole 6, on cross bar 2 and vertical pole 1, scale is all set.Groove 3 is set to 5, and the navigation button 5 on closed type elastic drag rope 4 is set to 3.
When use, elastic drag rope 4 is placed in respectively between cross bar 2 and vertical pole 1, cross bar 2 or between vertical pole 1, real wherein two navigation buttons 5 are placed on respectively in corresponding groove 3, can demonstrate the relation between line and rectangular parallelepiped, mobile remaining navigation button, and while slip on line, can know the relation of finding out a little with line, when in three grooves that three navigation buttons are placed in respectively to rectangular parallelepiped, can know the relation of finding out between triangle and the rectangular parallelepiped that three navigation buttons form, simple to operate, easily, and use safety.
Claims (2)
1. the simple and easy teaching aid of rectangular parallelepiped, it is characterized in that: comprise cross bar (2), vertical pole (1) and closed type elastic drag rope (4), cross bar (2) and vertical pole (1) composition rectangular parallelepiped frame, cross bar (2) and vertical pole (1) peripheral distribution fluted (3), groove (3) comprises the first segmental arc (8) and the first tilting section (7), navigation button (5) is set on elastic drag rope (4), navigation button (5) comprises the second segmental arc (9) and the second tilting section (10) that match with groove (3), navigation button end arranges through hole (6), navigation button (5) is arranged on elastic drag rope (4) by through hole (6), on cross bar (2) and vertical pole (1), scale is all set.
2. the simple and easy teaching aid of rectangular parallelepiped according to claim 1, is characterized in that: groove (3) is set to 3～6, and the navigation button (5) on closed type elastic drag rope (4) is set to 3～5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420360820.7U CN203910094U (en) | 2014-07-01 | 2014-07-01 | Simple cuboid teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420360820.7U CN203910094U (en) | 2014-07-01 | 2014-07-01 | Simple cuboid teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203910094U true CN203910094U (en) | 2014-10-29 |
Family
ID=51784351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420360820.7U Expired - Fee Related CN203910094U (en) | 2014-07-01 | 2014-07-01 | Simple cuboid teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203910094U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107170335A (en) * | 2017-07-17 | 2017-09-15 | 融水苗族自治县教育局 | Solid geometry teaching aid |
-
2014
- 2014-07-01 CN CN201420360820.7U patent/CN203910094U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107170335A (en) * | 2017-07-17 | 2017-09-15 | 融水苗族自治县教育局 | Solid geometry teaching aid |
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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: 20141029 Termination date: 20150701 |
|
| EXPY | Termination of patent right or utility model |