CN204749645U - Mathematics drawing rule - Google Patents
Mathematics drawing rule Download PDFInfo
- Publication number
- CN204749645U CN204749645U CN201520335098.6U CN201520335098U CN204749645U CN 204749645 U CN204749645 U CN 204749645U CN 201520335098 U CN201520335098 U CN 201520335098U CN 204749645 U CN204749645 U CN 204749645U
- Authority
- CN
- China
- Prior art keywords
- chi
- draw
- horizontal segment
- water cavity
- rotary sleeve
- 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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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a mathematics drawing rule, including the chi of drawing that is semi -circular structure, it is equipped with the scale on the segmental arc, horizontal segment of chi to draw, it is equipped with the rotary sleeve to draw chi horizontal segment middle part, the rotary sleeve is connected with marking off pole one end, it is equipped with the water cavity on the chi horizontal segment to draw, the inside horizontal bubble that is equipped with of water cavity, it is equipped with the elastomeric suction cup that the three regular triangle of being arranged on chi one side to draw. The utility model discloses during the use, adsorbing the chi of will drawing with elastomeric suction cup on the blackboard face and fixing, the strip so not only can be drawn in the middle part that keeps this moment horizontal bubble to lie in the water cavity, and when drawing the angle, the drawing of carrying out the angle is swung round the rotary sleeve to the marking off pole, can help the teacher to draw angle and straight line rapidly simultaneously, lets the mathematics mr instruct the student with more time and efforts, improvement the teaching efficiency, and the practicality is good.
Description
Technical field
The utility model relates to instructional technology field, particularly relates to a kind of mathematical drawing rule.
Background technology
Mathematics, it is the subject of research respective real-world spaces form and quantitative relation, the one of formal science is belonged to viewed from certain angle. be divided into higher mathematics and elementary mathematics, also the set of handlebar senior middle school complexity, function, algebraically, geometry are called medium mathematics. it plays irreplaceable effect in development of human history and social life, is also study and the requisite basic tool of research modern science and technology.
On the mathematics class in middle school, during math teacher religion geometry, the figures such as picture circle, straight line are often needed to carry out aided education, but the circular standard being difficult to picture, result of calculation can be had influence on and thinking of solving a problem, if drawn circle with a compass, although standard is lost time, the larger operation inconvenience of compasses; Same, straight line also needs to draw with chi to keep straight.
Except school instruction, all need angle in the various occasion such as lecture, work, use traditional semi-circle ruler, although can angle be drawn, troublesome poeration, draw straight line simultaneously and not easily draw horizontal line, and in drawing processes semi-circle ruler must teacher one hand steered, cause inconvenience of drawing like this.Therefore, for solving the problem, spy provides a kind of new technical scheme.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of mathematical drawing rule.
The utility model is achieved through the following technical solutions:
A kind of mathematical drawing rule, comprise the drawing ruler of semicircular in shape structure, segmental arc, the horizontal segment of described drawing ruler are provided with scale, rotary sleeve is provided with in the middle part of described drawing ruler horizontal segment, described rotary sleeve is connected with scribing rod one end, described drawing ruler horizontal segment is provided with water cavity, and described water cavity inside is provided with horizontal bubble, and described drawing ruler side is provided with three resilient suction cups of arranging in equilateral triangle.
As optimal technical scheme of the present utility model, described rotary sleeve is fixedly connected with in the middle part of drawing ruler horizontal segment.
As optimal technical scheme of the present utility model, described water cavity is embedded on drawing ruler horizontal segment.
As optimal technical scheme of the present utility model, described resilient suction cups is fixedly connected with between drawing ruler.
Compared with prior art, the beneficial effects of the utility model are: the utility model structure is simple, reasonable in design, the utility model is by arranging rotary sleeve, scribing rod, water cavity, horizontal bubble and resilient suction cups, when such teacher uses, just resilient suction cups is adsorbed on blackboard panel and is fixed by drawing ruler, the horizontal bubble of now maintenance is positioned at the middle part of water cavity, so not only can carry out drawing bar, simultaneously when drawing angle, scribing rod carries out around rotary sleeve swinging the drafting carrying out angle, teacher can be helped to draw rapidly angle and straight line, the more time and efforts of math teacher is allowed to instruct student, improve efficiency of teaching, practicality is good.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model;
Fig. 2 is left view of the present utility model.
In figure: 1. drawing ruler; 2. rotary sleeve; 3. scribing rod; 4. water cavity; 5. horizontal bubble; 6. resilient suction cups.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Refer to Fig. 1 and Fig. 2, Fig. 1 is front view of the present utility model; Fig. 2 is left view of the present utility model.
A kind of mathematical drawing rule, comprise the drawing ruler 1 of semicircular in shape structure, segmental arc, the horizontal segment of described drawing ruler 1 are provided with scale, are provided with rotary sleeve 2 in the middle part of described drawing ruler 1 horizontal segment, and wherein said rotary sleeve 2 is fixedly connected with in the middle part of drawing ruler 1 horizontal segment.Described rotary sleeve 2 is connected with scribing rod 3 one end, and described drawing ruler 1 horizontal segment is provided with water cavity 4, and wherein said water cavity 4 is embedded on drawing ruler 1 horizontal segment.Described water cavity 4 inside is provided with horizontal bubble 5, described drawing ruler 1 side is provided with three resilient suction cups 6 of arranging in equilateral triangle, and wherein said resilient suction cups 6 is fixedly connected with between drawing ruler 1, is convenient to the fixing of drawing ruler 1 like this, avoid teacher's hand to go to hold up, easy to operate.
Its detailed description of the invention is: when teacher uses like this, just resilient suction cups 6 is adsorbed on blackboard panel and is fixed by drawing ruler, the horizontal bubble 5 of now maintenance is positioned at the middle part of water cavity 4, so not only can carry out drawing bar, simultaneously when drawing angle, scribing rod 3 carries out swinging the drafting carrying out angle around rotary sleeve 2, teacher can be helped to draw rapidly angle and straight line, allow the more time and efforts of math teacher instruct student, improve efficiency of teaching, practicality is good.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. a mathematical drawing rule, comprise the drawing ruler (1) of semicircular in shape structure, segmental arc, the horizontal segment of described drawing ruler (1) are provided with scale, it is characterized in that: in the middle part of described drawing ruler (1) horizontal segment, be provided with rotary sleeve (2), described rotary sleeve (2) is connected with scribing rod (3) one end, described drawing ruler (1) horizontal segment is provided with water cavity (4), described water cavity (4) inside is provided with horizontal bubble (5), and described drawing ruler (1) side is provided with three resilient suction cups (6) of arranging in equilateral triangle.
2. a kind of mathematical drawing rule according to claim 1, is characterized in that: described rotary sleeve (2) is fixedly connected with in the middle part of drawing ruler (1) horizontal segment.
3. a kind of mathematical drawing rule according to claim 1, is characterized in that: described water cavity (4) is embedded on drawing ruler (1) horizontal segment.
4. a kind of mathematical drawing rule according to claim 1, is characterized in that: be fixedly connected with between described resilient suction cups (6) with drawing ruler (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520335098.6U CN204749645U (en) | 2015-05-22 | 2015-05-22 | Mathematics drawing rule |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520335098.6U CN204749645U (en) | 2015-05-22 | 2015-05-22 | Mathematics drawing rule |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204749645U true CN204749645U (en) | 2015-11-11 |
Family
ID=54464394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520335098.6U Expired - Fee Related CN204749645U (en) | 2015-05-22 | 2015-05-22 | Mathematics drawing rule |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204749645U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110001247A (en) * | 2018-06-05 | 2019-07-12 | 王彦全 | A kind of Novel set square |
-
2015
- 2015-05-22 CN CN201520335098.6U patent/CN204749645U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110001247A (en) * | 2018-06-05 | 2019-07-12 | 王彦全 | A kind of Novel set square |
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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: 20151111 Termination date: 20160522 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |