CN201833755U - Combined drawing rule - Google Patents
Combined drawing rule Download PDFInfo
- Publication number
- CN201833755U CN201833755U CN2010205697940U CN201020569794U CN201833755U CN 201833755 U CN201833755 U CN 201833755U CN 2010205697940 U CN2010205697940 U CN 2010205697940U CN 201020569794 U CN201020569794 U CN 201020569794U CN 201833755 U CN201833755 U CN 201833755U
- Authority
- CN
- China
- Prior art keywords
- fixed
- scale
- drawing rule
- moving chi
- protractor
- 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
Links
- 239000012467 final product Substances 0.000 description 1
Abstract
The utility model belongs to the field of appliances for math teaching, and particularly relates to a combined drawing rule for drawing. The combined drawing rule is characterized in that: a curved protractor is arranged between the other end of a fixed ruler and the other end of a movable ruler, one end of the protractor is fixed on the fixed ruler, the other end of the protractor is connected with the movable ruler through a guide post, one end of the guide post is fixed on the movable ruler, and the other end of the guide post is threaded and fixed in a curved slide way on the protractor by a nut. Consequently, the combined drawing rule has the advantages of simple structure and low cost, is convenient to use and carry and has multiple functions.
Description
Technical field: the utility model belongs to mathematical education articles for use field, is specifically related to a kind of combination drawing rule of the usefulness of drawing.
Background technology: in the mathematics several teaching, often need drawing earlier to solve conclusion then, the instrument commonly used of drawing has ruler, radian chi, protractor, compasses etc., and the teacher says need carry more drawing tool class hour simultaneously, often alternately change and use, bring many inconvenience to teaching.
Summary of the invention: the purpose of this utility model provides a kind of simple in structure, and cost is low, and is easy to use and carry, the combination drawing rule that function is many.
The technical solution of the utility model is: a kind of combination drawing rule, form by scale and moving chi that hinge is connected in one by an end, it is characterized in that: be provided with the arc bevel protractor between the other end of scale and moving chi, bevel protractor one end is fixed on the scale, the other end is connected with moving chi by lead, lead one end is fixed on the moving chi, and the other end is established screw thread and is fixed in the arc chute on the bevel protractor by nut.Wherein, described scale and moving chi are provided with the through hole that a plurality of diameters match with the chalk external diameter.
Owing to adopt technique scheme, during use, available moving chi or the scale straight line that draws, with the inside and outside limit of the arc bevel protractor camber line that can draw, draw bowlder, chalk is put into different through hole on moving chi or the scale, is the center with the hinge, revolves can the draw circle of different radii of rotary ruler or scale, when drawing two rays of certain angle, earlier nut is unclamped, the lead of moving chi moves along arc chute, and the angle fastening nut that mixes up between fixed, the moving chi gets final product, thereby have simple in structure, cost is low, and is easy to use and carry, the advantage that function is many.
Description of drawings: come the technical solution of the utility model is described further below in conjunction with the drawings and specific embodiments.
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment: with reference to the accompanying drawings.A kind of combination drawing rule, form by scale 1 and moving chi 2 that hinge 6 is connected in one by an end, between the other end of scale 1 and moving chi 2, be provided with arc bevel protractor 3, bevel protractor 3 one ends are fixed on the scale, the other end is connected with moving chi by lead 5, lead 5 one ends are fixed on the moving chi 2, and the other end is established screw thread and is fixed in the arc chute 4 on the bevel protractor 3 by nut; Described scale 1 and moving chi 2 are provided with the through hole 7 that a plurality of diameters match with the chalk external diameter.
Claims (2)
1. one kind is made up drawing rule, form by scale (1) and moving chi (2) that hinge (6) is connected in one by an end, it is characterized in that: be provided with arc bevel protractor (3) between the other end of scale (1) and moving chi (2), bevel protractor (3) one ends are fixed on the scale, the other end is connected with moving chi by lead (5), lead (5) one ends are fixed on the moving chi (2), and the other end is established screw thread and is fixed in the arc chute (4) on the bevel protractor (3) by nut.
2. by the described a kind of combination drawing rule of claim 1, it is characterized in that: described scale (1) and moving chi (2) are provided with the through hole (7) that a plurality of diameters match with the chalk external diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205697940U CN201833755U (en) | 2010-10-12 | 2010-10-12 | Combined drawing rule |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205697940U CN201833755U (en) | 2010-10-12 | 2010-10-12 | Combined drawing rule |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201833755U true CN201833755U (en) | 2011-05-18 |
Family
ID=44003852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205697940U Expired - Fee Related CN201833755U (en) | 2010-10-12 | 2010-10-12 | Combined drawing rule |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201833755U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606067A (en) * | 2016-03-04 | 2016-05-25 | 甘肃省治沙研究所 | Portable multifunctional measuring apparatus |
| CN108327428A (en) * | 2018-02-28 | 2018-07-27 | 黄汇彤 | Multi-functional high school mathematics plotting unit |
-
2010
- 2010-10-12 CN CN2010205697940U patent/CN201833755U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606067A (en) * | 2016-03-04 | 2016-05-25 | 甘肃省治沙研究所 | Portable multifunctional measuring apparatus |
| CN105606067B (en) * | 2016-03-04 | 2018-08-14 | 甘肃省治沙研究所 | A kind of Portable multifunction measuring instrument |
| CN108327428A (en) * | 2018-02-28 | 2018-07-27 | 黄汇彤 | Multi-functional high school mathematics plotting unit |
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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: 20110518 Termination date: 20111012 |