CN201951092U - Curve plotter for mathematics teaching - Google Patents
Curve plotter for mathematics teaching Download PDFInfo
- Publication number
- CN201951092U CN201951092U CN201120042297XU CN201120042297U CN201951092U CN 201951092 U CN201951092 U CN 201951092U CN 201120042297X U CN201120042297X U CN 201120042297XU CN 201120042297 U CN201120042297 U CN 201120042297U CN 201951092 U CN201951092 U CN 201951092U
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- Prior art keywords
- plotting
- rod
- drawing bar
- fixator
- utility
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Abstract
The utility model discloses a curve plotter for mathematics teaching, which comprises a fixer and a plotting rod, wherein one end of the plotting rod is connected with the fixer; an annular sliding chute is arranged at the side part of the fixer and is glidingly matched with a sliding block arranged at one end of the plotting rod; a telescopic rod which is glidingly matched with the plotting rod is arranged inside the plotting rod; one end of the telescopic rod extends to the inside of the plotting rod; a chalk is arranged at the other end of the telescopic rod; a sucking disc is arranged at the bottom of the fixer; and a spring is arranged between the bottom of the fixer and the sucking disc. The curve plotter not only has higher plotting efficiency, but also has stronger adjustability.
Description
Technical field
The utility model relates to a kind of middle school mathematics teaching aid, relates in particular to a kind of plotter that is used for mathematical education, specifically is applicable to various circles and concentrically ringed drafting.
Background technology
Compasses are indispensable teaching aids in the mathematical education, but the constant radius of at present used compasses, and the size of each circle of drawing is fixed, and can't draw the circle of different radii as required, also can't draw concentric a plurality of circles.
The Chinese patent Granted publication number is CN201544649U, Granted publication day is that the utility model patent on August 11st, 2010 discloses a kind of firm formula compasses for teaching, belong to International Patent Classification (IPC) (IPC) division and belong to operation Department of Transportation, printing branch is write or drawing appliance; The big class of office appliance is write or drawing article; The assistant product group of writing or draw, circular curve plotter or analogous instrument technical group field, its structure comprises supporting leg, chalk sleeve, chalk, described leg ends place is fixed on the sucker by multi-directional ball, vertical fixing has ruler on supporting leg, and chalk sleeve is connected on the ruler by rectangle slide opening slip cap.Though characteristics such as it is reasonable in design, simple in structure, easy to use that this utility model has also can be adjusted radius of a circle, it once still can only draw a circle, can't draw a plurality of concentric circles simultaneously, and drafting efficient is lower.
Summary of the invention
The purpose of this utility model is to overcome lower defective and the problem of drafting efficient that exists in the prior art, and a kind of higher plotter that is used for mathematical education of efficient of drawing is provided.
For realizing above purpose, technical solution of the present utility model is: a kind of plotter that is used for mathematical education, comprise fixator and drawing bar, and an end of described drawing bar is connected with fixator, and the drawing bar is provided with chalk; The sidepiece of described fixator is provided with annular groove, and the slide block of annular groove and the one end setting of drawing bar is slidingly matched, and the inside of drawing bar is provided with the expansion link that is slidingly matched with it, and an end of expansion link extends to the inside of drawing bar, and the other end is provided with chalk.
The bottom of described fixator is provided with sucker.
Be provided with spring between the bottom of described fixator and the sucker.
Compared with prior art, the beneficial effects of the utility model are:
1, because a kind of sidepiece that is used for the plotter fixator of mathematical education of the utility model is provided with annular groove, the slide block of annular groove and the one end setting of drawing bar is slidingly matched, the inside of drawing bar is provided with the expansion link that is slidingly matched with it, one end of expansion link extends to the inside of drawing bar, the other end is provided with chalk, during use, adjust centre-to-centre spacing between chalk and the fixator by adjusting relative length between expansion link and the drawing bar, thereby obtain various radiuses, handle the drafting that the drawing bar is justified by slide block with the relative slip between the annular groove again, not only can draw the circle of various radiuses, and can draw concentric circles, drafting efficient is higher.Therefore drafting efficient of the present utility model is higher.
2, because a kind of plotter that is used for mathematical education of the utility model is provided with sucker in the bottom of fixator; and between the bottom of sucker and fixator, be provided with spring; during use; can fix fixator by sucker; the recompression spring contacts with blackboard to guarantee chalk; this design can adjust accordingly according to the difference of chalk length, and with normally carrying out of guaranteeing to draw, adjustability is stronger.Therefore adjustability of the present utility model is stronger.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: fixator 1, drawing bar 2, chalk 3, annular groove 4, slide block 5, expansion link 6, sucker 7, spring 8.
The specific embodiment
Below in conjunction with the description of drawings and the specific embodiment the utility model is described in further detail
Referring to Fig. 1, a kind of plotter that is used for mathematical education comprises fixator 1 and drawing bar 2, and an end of described drawing bar 2 is connected with fixator 1, and drawing bar 2 is provided with chalk 3; One of special feature of the present utility model is: the sidepiece of fixator 1 is provided with annular groove 4, annular groove 4 is slidingly matched with the slide block 5 of drawing bar 2 one end settings, the inside of drawing bar 2 is provided with the expansion link 6 that is slidingly matched with it, one end of expansion link 6 extends to the inside of drawing bar 2, and the other end is provided with chalk 3.This design is convenient to draw the circle and the concentric circles of various radiuses, and drafting efficient is higher.
The bottom of preferred fixator 1 is provided with sucker 7.Fixedly the utility model is convenient in this design, and fixed effect is better.
Be provided with spring 8 between the bottom of preferred fixator 1 and the sucker 7.This design is convenient to the height of adjustable fixer 1 to cooperate the chalk 3 of all lengths, and adjustability is stronger.
Therefore it is higher that the utility model is not only drawn efficient, and adjustability is stronger.
The above only is a better embodiment of the present utility model; protection domain of the present utility model does not exceed with above-mentioned embodiment; as long as the equivalence that those of ordinary skills do according to the utility model institute disclosure is modified or changed, all should include in the protection domain of putting down in writing in claims.
Claims (3)
1. plotter that is used for mathematical education, comprise fixator (1) and drawing bar (2), one end of described drawing bar (2) is connected with fixator (1), and drawing bar (2) is provided with chalk (3), it is characterized in that: the sidepiece of described fixator (1) is provided with annular groove (4), annular groove (4) is slidingly matched with the slide block (5) that drawing bar (2) one ends are provided with, the inside of drawing bar (2) is provided with the expansion link (6) that is slidingly matched with it, one end of expansion link (6) extends to the inside of drawing bar (2), and the other end is provided with chalk (3).
2. a kind of plotter that is used for mathematical education according to claim 1 is characterized in that: the bottom of described fixator (1) is provided with sucker (7).
3. a kind of plotter that is used for mathematical education according to claim 2 is characterized in that: be provided with spring (8) between the bottom of described fixator (1) and the sucker (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120042297XU CN201951092U (en) | 2011-02-14 | 2011-02-14 | Curve plotter for mathematics teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120042297XU CN201951092U (en) | 2011-02-14 | 2011-02-14 | Curve plotter for mathematics teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201951092U true CN201951092U (en) | 2011-08-31 |
Family
ID=44495217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120042297XU Expired - Fee Related CN201951092U (en) | 2011-02-14 | 2011-02-14 | Curve plotter for mathematics teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201951092U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107009787A (en) * | 2017-04-21 | 2017-08-04 | 黄士玉 | A kind of portable Multifunctional math teaching aid and its application method |
| CN112693252A (en) * | 2021-01-29 | 2021-04-23 | 重庆电子工程职业学院 | Mathematics teaching is with supplementary teaching device |
-
2011
- 2011-02-14 CN CN201120042297XU patent/CN201951092U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107009787A (en) * | 2017-04-21 | 2017-08-04 | 黄士玉 | A kind of portable Multifunctional math teaching aid and its application method |
| CN107009787B (en) * | 2017-04-21 | 2018-06-26 | 温岭市智营电子科技有限公司 | A kind of portable Multifunctional math teaching aid and its application method |
| CN112693252A (en) * | 2021-01-29 | 2021-04-23 | 重庆电子工程职业学院 | Mathematics teaching is with supplementary teaching 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: 20110831 Termination date: 20120214 |