CN220482953U - Demonstrator for geometric circle drawing movable angle - Google Patents
Demonstrator for geometric circle drawing movable angle Download PDFInfo
- Publication number
- CN220482953U CN220482953U CN202321876838.8U CN202321876838U CN220482953U CN 220482953 U CN220482953 U CN 220482953U CN 202321876838 U CN202321876838 U CN 202321876838U CN 220482953 U CN220482953 U CN 220482953U
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- annular plate
- plate
- movable rod
- demonstrator
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- 230000006978 adaptation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The utility model discloses a geometric circle drawing movable angle demonstrator, which relates to the technical field of movable angles and comprises an annular plate, wherein scale marks are processed at the top end of the annular plate, a connecting plate is integrally formed at the inner side of the annular plate, a movable rod is movably connected at the top end of the connecting plate, a plurality of round holes are formed at the top end of the movable rod, a circular plate is arranged at the inner side of the annular plate, the circular plate is matched with the inner side of the annular plate, a plurality of geometric figure openings are formed at the top end of the circular plate, and the circular plate and the movable rod are matched with each other.
Description
Technical Field
The utility model relates to the technical field of movable angles, in particular to a geometric circle drawing movable angle demonstrator.
Background
Students often use some tools for drawing, such as compasses, rules and the like, and when the tools draw circular, fan-shaped or arc-shaped patterns, the tools are usually needed to be used together, because the angle cannot be determined by the independent compasses, the patterns such as the circular, fan-shaped or arc-shaped patterns cannot be drawn quickly by the independent rules, and the use is very inconvenient.
Disclosure of Invention
The utility model provides a geometric circle drawing movable angle demonstrator for solving the technical problems.
In order to solve the technical problems, the geometric circle drawing movable angle demonstrator provided by the utility model comprises an annular plate, wherein scale marks are processed at the top end of the annular plate, a connecting plate is integrally formed at the inner side of the annular plate, a movable rod is movably connected to the top end of the connecting plate, a plurality of round holes are formed at the top end of the movable rod, a circular plate is arranged at the inner side of the annular plate and is matched with the inner side of the annular plate, and a plurality of geometric figure openings are formed at the top end of the circular plate.
Preferably, the movable rod top is provided with an opening, the opening is arranged at the rear side of the round hole, and the opening is arranged at the top of the annular plate.
Compared with the related art, the geometric circle drawing movable angle demonstrator provided by the utility model has the following beneficial effects:
through the cooperation of annular plate and movable rod, can be light quick draw required circular, fan-shaped or arc, still can draw various geometric figures fast through the geometric figure opening on the plectane simultaneously, and annular plate, movable rod and plectane are a set of instrument, need not a plurality of instruments and use simultaneously can draw the picture, and it is very convenient to use.
Drawings
FIG. 1 is a schematic diagram of the overall perspective structure of a geometric circle-drawing movable angle demonstrator according to the present utility model;
FIG. 2 is a schematic perspective view of an annular plate of the geometric circle-drawing movable angle demonstrator according to the present utility model;
FIG. 3 is a schematic diagram of a perspective view of a movable rod of a geometric circle angle demonstrator according to the present utility model;
fig. 4 is a schematic diagram of a circular plate perspective structure of a geometric circle drawing movable angle demonstrator according to the present utility model.
Reference numerals in the drawings: 1. the annular plate, 2, the scale mark, 3, the connecting plate, 4, the movable rod, 5, the opening, 6, the round hole, 7, the plectane, 8, geometry figure opening.
Detailed Description
The embodiment is given by fig. 1-4, the utility model comprises an annular plate 1, the top end of the annular plate 1 is provided with a scale mark 2, the inner side of the annular plate 1 is integrally provided with a connecting plate 3, the top end of the connecting plate 3 is movably connected with a movable rod 4, the top end of the movable rod 4 is provided with a plurality of round holes 6, the inner side of the annular plate 1 is provided with a circular plate 7, the circular plate 7 is matched with the inner side of the annular plate 1, the top end of the circular plate 7 is provided with a plurality of geometric figure openings 8, the top end of the movable rod 4 is provided with an opening 5, the opening 5 is arranged at the rear side of the round hole 6, the scale mark 2 of the opening 5 on the annular plate 1 is 360 degrees, the angle can be judged by the scale mark 2 when the movable rod 4 is rotated to draw a circle, a sector or an arc shape, and the geometric figure openings 8 on the circular plate 7 comprise circles with different diameters, ellipses and various polygons, so that the quick drawing can be assisted.
Working principle:
when only using annular plate 1 and movable rod 4, because movable rod 4 and connecting plate 3 junction is in annular plate 1 centre of a circle department, consequently can insert the pen into round hole 6 then rotate movable rod 4 and draw circular, fan-shaped or arc, simultaneously also can confirm the angle of drawing circular, fan-shaped or arc through scale mark 2 judgement movable rod 4 pivoted angle when drawing, and use plectane 7 then can be through a plurality of geometry opening 8 quick drawing some common geometry.
Claims (2)
1. The utility model provides a geometry draws circle activity angle demonstrator, includes annular plate (1), its characterized in that: the utility model discloses a circular plate, including annular plate (1), connecting plate (3), movable rod (4), a plurality of round holes (6) have been seted up on movable rod (4) top, annular plate (1) inboard is equipped with plectane (7), just plectane (7) and annular plate (1) inboard looks adaptation, a plurality of geometry openings (8) have been seted up on plectane (7) top.
2. The geometric circle drawing movable angle demonstrator according to claim 1, characterized in that an opening (5) is formed in the top end of the movable rod (4), the opening (5) is formed in the rear side of the round hole (6), and the opening (5) is formed in the top of the annular plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321876838.8U CN220482953U (en) | 2023-07-17 | 2023-07-17 | Demonstrator for geometric circle drawing movable angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321876838.8U CN220482953U (en) | 2023-07-17 | 2023-07-17 | Demonstrator for geometric circle drawing movable angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220482953U true CN220482953U (en) | 2024-02-13 |
Family
ID=89826655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321876838.8U Active CN220482953U (en) | 2023-07-17 | 2023-07-17 | Demonstrator for geometric circle drawing movable angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220482953U (en) |
-
2023
- 2023-07-17 CN CN202321876838.8U patent/CN220482953U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |