CN203221786U - Mathematical teaching ruler device - Google Patents
Mathematical teaching ruler device Download PDFInfo
- Publication number
- CN203221786U CN203221786U CN 201320172684 CN201320172684U CN203221786U CN 203221786 U CN203221786 U CN 203221786U CN 201320172684 CN201320172684 CN 201320172684 CN 201320172684 U CN201320172684 U CN 201320172684U CN 203221786 U CN203221786 U CN 203221786U
- Authority
- CN
- China
- Prior art keywords
- protractor
- ruler
- straight edge
- chi
- chalk
- 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 discloses a mathematical teaching ruler device, which comprises a protractor, a radius wire, a protractor center hole, a chalk sleeve ring, a straight edge, a chalk sleeve hole, a compass and a sliding block, wherein the straight edge is a main body part, and integrally has a rectangular straight board rule structure; the protractor is arranged at the left side end of the straight edge; the protractor center hole is formed in the circle center point of the protractor on the side edge of the straight edge; the radius wire is connected to the protractor center hole; the total length of the radius wire is required to be greater than the length of the straight edge; the chalk sleeve ring is arranged at the tail end of the radius wire; the compass is connected to the right side edge of the central position of the straight edge through a rotating shaft; the sliding block is arranged on a rod of the compass; and the chalk sleeve hole is formed in the sliding block. The mechanical teaching ruler device is simple in overall structure, convenient to operate and high in stability and reliability. By the mechanical teaching ruler device, mathematical teaching can be facilitated, the mathematical teaching quality can be favorably improved, and the burden of a mathematics teacher can be reduced.
Description
Technical field
The utility model relates to mathematical education with in the teaching aid, relates in particular to a kind of mathematical education chi device.
Background technology
In the process of mathematical education, teacher carries the teaching aid of multiple teaching ruler class each time on class always, ruler, compasses and protractor etc. have been generally comprised, because the function singleness of various chi tool devices, carrying multiple chi tool simultaneously can allow the people feel very inconvenient, especially forgetting about carrying under any one situation, all can to teaching normally cause adverse influence, also therefore increased the burden of math teacher.
The utility model content
The purpose of this utility model is, overcomes the deficiencies in the prior art part, and a kind of mathematical education chi device is provided, and makes things convenient for mathematical education, alleviates the burden of math teacher.
A kind of mathematical education chi device described in the utility model includes protractor, radius rope, protractor centre bore, the chalk collar, ruler, chalk trepanning, compasses chi and sliding shoe.Ruler is a kind of mathematical education chi device main body part described in the utility model, the structure of the straight board foot that integral body is rectangle, the position at the side of ruler left end is provided with protractor, position in the centre dot of protractor, on the side of ruler, be provided with the protractor centre bore, on the protractor centre bore, be connected with the radius rope, the total length of radius rope should on the end of radius rope, be connected with the chalk collar greater than the length of ruler.On the side of keeping right in the middle position of ruler, be connected with the compasses chi by turning cylinder, the chi bar of compasses chi is provided with sliding shoe, and sliding shoe is provided with the chalk trepanning.
A kind of mathematical education chi device described in the utility model, overall structure is simple, and is easy for operation, good stability, reliability height.Use a kind of mathematical education chi device described in the utility model, can make things convenient for mathematical education, be conducive to improve the quality of mathematical education, alleviate the burden of math teacher.
Description of drawings
Accompanying drawing 1 is the structural representation of a kind of mathematical education chi device described in the utility model.1-protractor, 2-radius rope, 3-protractor centre bore, 4-chalk collar, 5-ruler, 6-chalk trepanning, 7-compasses chi, 8-sliding shoe.
The specific embodiment
Referring now to accompanying drawing 1, be described as follows in conjunction with the embodiments: a kind of mathematical education chi device described in the utility model includes protractor 1, radius rope 2, protractor centre bore 3, the chalk collar 4, ruler 5, chalk trepanning 6, compasses chi 7 and sliding shoe 8.Ruler 5 is a kind of mathematical education chi device main body parts described in the utility model, the structure of the straight board foot that integral body is rectangle in the position of the side of ruler 5 left end, is provided with protractor 1, position in the centre dot of protractor 1, on the side of ruler 5, be provided with protractor centre bore 3, on protractor centre bore 3, be connected with radius rope 2, the total length of radius rope 2 should on the end of radius rope 2, be connected with the chalk collar 4 greater than the length of ruler 5.On the side of keeping right in the middle position of ruler 5, be connected with compasses chi 7 by turning cylinder, the chi bar of compasses chi 7 is provided with sliding shoe 8, and sliding shoe 8 is provided with chalk trepanning 6.A kind of mathematical education chi device described in the utility model, overall structure is simple, and is easy for operation, good stability, reliability height.Use a kind of mathematical education chi device described in the utility model, can make things convenient for mathematical education, be conducive to improve the quality of mathematical education, alleviate the burden of math teacher.
Claims (1)
1. mathematical education chi device, include protractor (1), radius rope (2), protractor centre bore (3), the chalk collar (4), ruler (5), chalk trepanning (6), compasses chi (7) and sliding shoe (8), ruler (5) is main component, the structure of the straight board foot that integral body is rectangle, it is characterized in that the position at the side left end of ruler (5), be provided with protractor (1), position in the centre dot of protractor (1), on the side of ruler (5), be provided with protractor centre bore (3), on protractor centre bore (3), be connected with radius rope (2), the total length of radius rope (2) should on the end of radius rope (2), be connected with the chalk collar (4) greater than the length of ruler (5); On the side of keeping right in the middle position of ruler (5), be connected with compasses chi (7) by turning cylinder, the chi bar of compasses chi (7) is provided with sliding shoe (8), and sliding shoe (8) is provided with chalk trepanning (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320172684 CN203221786U (en) | 2013-04-09 | 2013-04-09 | Mathematical teaching ruler device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320172684 CN203221786U (en) | 2013-04-09 | 2013-04-09 | Mathematical teaching ruler device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203221786U true CN203221786U (en) | 2013-10-02 |
Family
ID=49248801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320172684 Expired - Fee Related CN203221786U (en) | 2013-04-09 | 2013-04-09 | Mathematical teaching ruler device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203221786U (en) |
-
2013
- 2013-04-09 CN CN 201320172684 patent/CN203221786U/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: 20131002 Termination date: 20140409 |