CN201552913U - Stable-type graphometer - Google Patents
Stable-type graphometer Download PDFInfo
- Publication number
- CN201552913U CN201552913U CN2009202820974U CN200920282097U CN201552913U CN 201552913 U CN201552913 U CN 201552913U CN 2009202820974 U CN2009202820974 U CN 2009202820974U CN 200920282097 U CN200920282097 U CN 200920282097U CN 201552913 U CN201552913 U CN 201552913U
- Authority
- CN
- China
- Prior art keywords
- graphometer
- bull stick
- stable
- type
- angle
- 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 provides a stable-type graphometer, belonging to teaching tools. A semi-circular opening is arranged in the graphometer; magnetic pasting chips are arranged at both sides of the diameter edge; a rotating rod is connected with the circle center of the graphometer through a rotating shaft, a pointer is arranged on the other end of the rotating rod, and a sliding channel is further arranged on the rotating rod. Compared with the prior art, the stable-type graphometer has advantages of reasonable design, simple structure, convenient using, stable fixing and simple operating for mapping and measuring, and is time-saving and labor-saving.
Description
Technical field
The utility model relates to teaching aid, the map firm formula graphometer of usefulness of a kind of specifically mathematics teacher.
Background technology
Graphometer is student and teacher all indispensable study and teaching aid, its main function is to be used for taking measurement of an angle, the graphometer that the teacher uses then is to demonstrate usefulness on blackboard, many times need graphometer by force by on blackboard, using, the use very complicated when especially drawing angle line, at first need draw a little on corresponding angle index value, and then just can finish the drafting of angle with the ruler line, the mapping process wastes time and energy.
Summary of the invention
Technical assignment of the present utility model is to solve the deficiencies in the prior art, and a kind of simple in structure, firm easily formula graphometer of mapping is provided.
The technical solution of the utility model realizes in the following manner, this firm formula graphometer, have semicircular opening in the described graphometer, both sides, diameter limit at graphometer are provided with Magnetic adhesive mat, circle centre position at graphometer is connected with bull stick by rotating shaft, the described bull stick other end is provided with pointer, also has slideway on the bull stick.
The diameter limit of described graphometer is marked with scale.
The beneficial effect that the utility model is compared with prior art produced is:
Characteristics such as that firm formula graphometer of the present utility model has is simple in structure, easy to use, be skillfully constructed, fixation, be provided with Magnetic adhesive mat in both sides, diameter limit, make this graphometer be adsorbed on the magnet board easily, at the also active bull stick that is fixed with of circle centre position, the pointed semicircle scale of bull stick has slideway on the bull stick, so just chalk can be placed setting-out in the slideway, describe angle and simply save labour, save the mapping time.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model.
Mark in the accompanying drawing is represented respectively:
1, Magnetic adhesive mat, 2, bull stick, 3, pointer, 4, slideway, 5, rotating shaft.
The specific embodiment
Below in conjunction with accompanying drawing firm formula graphometer of the present utility model is done following detailed description the in detail.
As shown in Figure 1, this firm formula graphometer, in described graphometer, have semicircular opening, both sides, diameter limit at graphometer are provided with Magnetic adhesive mat 1, are connected with bull stick 2 at the circle centre position of graphometer by rotating shaft 5, and described bull stick 2 other ends are provided with pointer 3, also have slideway 4 on the bull stick 2, the width of slideway 4 is arranged to the chalk width, convenient like this setting-out in slideway 4, and the diameter limit of described graphometer is marked with scale.
When taking measurement of an angle, only need the one side at angle is overlapped with zero angle, rotate bull stick then, the pointer of bull stick is overlapped the number of degrees that can read institute's angle measurement with the another side at angle; Serve as a teacher when needing with this graphometer picture angle, can be earlier with the diameter limit of this graphometer as the draw one side at angle of ruler, then this limit is overlapped with zero angle, number of degrees rotation bull stick according to required angle of drawing, when the pointed of bull stick is formulated scale, get final product with chalk setting-out in the slideway of described bull stick.
Claims (2)
1. firm formula graphometer, it is characterized in that having semicircular opening in the described graphometer, be provided with Magnetic adhesive mat, be connected with bull stick by rotating shaft at the circle centre position of graphometer in the both sides, diameter limit of graphometer, the described bull stick other end is provided with pointer, also has slideway on the bull stick.
2. firm formula graphometer according to claim 1 is characterized in that the diameter limit of described graphometer is marked with scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202820974U CN201552913U (en) | 2009-12-01 | 2009-12-01 | Stable-type graphometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202820974U CN201552913U (en) | 2009-12-01 | 2009-12-01 | Stable-type graphometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201552913U true CN201552913U (en) | 2010-08-18 |
Family
ID=42612589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202820974U Expired - Fee Related CN201552913U (en) | 2009-12-01 | 2009-12-01 | Stable-type graphometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201552913U (en) |
-
2009
- 2009-12-01 CN CN2009202820974U patent/CN201552913U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100818 Termination date: 20101201 |