CN107160918A - The special drawing combination tool of mathematics teacher's writing on the blackboard - Google Patents
The special drawing combination tool of mathematics teacher's writing on the blackboard Download PDFInfo
- Publication number
- CN107160918A CN107160918A CN201610637260.9A CN201610637260A CN107160918A CN 107160918 A CN107160918 A CN 107160918A CN 201610637260 A CN201610637260 A CN 201610637260A CN 107160918 A CN107160918 A CN 107160918A
- Authority
- CN
- China
- Prior art keywords
- ruler
- main shaft
- connecting rod
- protractor
- writing
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L7/00—Straightedges
- B43L7/10—Plural straightedges relatively movable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
- B43L13/001—Mathematical drawing instruments
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
Abstract
The present invention is a kind of special drawing combination tool of mathematics teacher's writing on the blackboard, is related to teaching aid field, is a kind of drawing instrument specifically.It is an object of the invention to provide a kind of special drawing combination tool of mathematics teacher's writing on the blackboard, in order to realize the purpose, the present invention mainly comprises：One ruler A, one are ruler B, and one ruler C, wherein：The ruler A, ruler B and ruler C one end are connected by main shaft；Ruler A, ruler B and ruler C overlap each other, and ruler B is located in the middle of ruler A and ruler C, and connecting rod is additionally provided with the main shaft；The connecting rod other end is connected with protractor by auxiliary spindle, and the connecting rod is to be fixedly connected with the connected mode of main shaft；The bottom of the ruler A is provided with positioning convex along chi face, and the present apparatus on main shaft by setting ruler A, ruler B, ruler C and protractor.The present invention has beneficial effect easy to use.
Description
Technical field
It is a kind of drawing instrument specifically the present invention relates to teaching aid field.
Background technology
Junior middle school's high school mathematics teaching needs to draw on blackboard, and various drawing instruments disperse, very inconvenient when using.
The content of the invention
It is an object of the invention to provide a kind of special drawing combination tool of mathematics teacher's writing on the blackboard, in order to realize the purpose, this
The scheme of invention is：
1st, a kind of special drawing combination tool of mathematics teacher's writing on the blackboard, it is characterised in that：
Mainly include：
One ruler A, one are ruler B, and one ruler C, wherein：The ruler A, ruler B and ruler C one end pass through main shaft
Connection；
Ruler A, ruler B and ruler C overlap each other, and ruler B is located in the middle of ruler A and ruler C, the company of being additionally provided with the main shaft
Extension bar；
The connecting rod other end is connected with protractor by auxiliary spindle, and the connected mode of the connecting rod and main shaft is fixes
Connection；
The bottom of the ruler A is provided with positioning convex along chi face, the present apparatus by set on main shaft ruler A, ruler B,
Ruler C and protractor.
2nd, the special drawing combination tool of mathematics teacher's writing on the blackboard according to claim 1, it is characterised in that：
Mainly include：
One ruler A, one are ruler B, and one ruler C, wherein：The ruler A, ruler B and ruler C one end pass through main shaft
Connection；
Ruler A, ruler B and ruler C overlap each other, and ruler B is located in the middle of ruler A and ruler C, the company of being additionally provided with the main shaft
Extension bar；
The connecting rod other end is connected with protractor by auxiliary spindle, and the connected mode of the connecting rod and main shaft is fixes
Connection；
The bottom of the ruler A is provided with positioning convex along chi face, the present apparatus by set on main shaft ruler A, ruler B,
Ruler C and protractor；
The various materials are made by timber.
3rd, the special drawing combination tool of mathematics teacher's writing on the blackboard according to claim 1, it is characterised in that：
Mainly include：
One ruler A, one are ruler B, and one ruler C, wherein：The ruler A, ruler B and ruler C one end pass through main shaft
Connection；
Ruler A, ruler B and ruler C overlap each other, and ruler B is located in the middle of ruler A and ruler C, the company of being additionally provided with the main shaft
Extension bar；
The connecting rod other end is connected with protractor by auxiliary spindle, and the connected mode of the connecting rod and main shaft is fixes
Connection；
The bottom of the ruler A is provided with positioning convex along chi face, the present apparatus by set on main shaft ruler A, ruler B,
Ruler C and protractor；
The various materials are made of plastics.
4th, the special drawing combination tool of mathematics teacher's writing on the blackboard according to claim 1, it is characterised in that：
Mainly include：
One ruler A, one are ruler B, and one ruler C, wherein：The ruler A, ruler B and ruler C one end pass through main shaft
Connection；
Ruler A, ruler B and ruler C overlap each other, and ruler B is located in the middle of ruler A and ruler C, the company of being additionally provided with the main shaft
Extension bar；
The connecting rod other end is connected with protractor by auxiliary spindle, and the connected mode of the connecting rod and main shaft is fixes
Connection；
The bottom of the ruler A is provided with positioning convex along chi face, the present apparatus by set on main shaft ruler A, ruler B,
Ruler C and protractor；
The various materials are made by hollow aluminium alloy.
The present invention has beneficial effect easy to use.
Embodiment
One embodiment of the present invention mainly includes：
One ruler A, one are ruler B, and one ruler C, wherein：The ruler A, ruler B and ruler C one end pass through main shaft
Connection；
Ruler A, ruler B and ruler C overlap each other, and ruler B is located in the middle of ruler A and ruler C, the company of being additionally provided with the main shaft
Extension bar；
The connecting rod other end is connected with protractor by auxiliary spindle, and the connected mode of the connecting rod and main shaft is fixes
Connection；
The bottom of the ruler A is provided with positioning convex along chi face, the present apparatus by set on main shaft ruler A, ruler B,
Ruler C and protractor.
Second embodiment of the present invention mainly includes：
One ruler A, one are ruler B, and one ruler C, wherein：The ruler A, ruler B and ruler C one end pass through main shaft
Connection；
Ruler A, ruler B and ruler C overlap each other, and ruler B is located in the middle of ruler A and ruler C, the company of being additionally provided with the main shaft
Extension bar；
The connecting rod other end is connected with protractor by auxiliary spindle, and the connected mode of the connecting rod and main shaft is fixes
Connection；
The bottom of the ruler A is provided with positioning convex along chi face, the present apparatus by set on main shaft ruler A, ruler B,
Ruler C and protractor；
The various materials are made by timber.
The 3rd embodiment of the present invention mainly includes：
One ruler A, one are ruler B, and one ruler C, wherein：The ruler A, ruler B and ruler C one end pass through main shaft
Connection；
Ruler A, ruler B and ruler C overlap each other, and ruler B is located in the middle of ruler A and ruler C, the company of being additionally provided with the main shaft
Extension bar；
The connecting rod other end is connected with protractor by auxiliary spindle, and the connected mode of the connecting rod and main shaft is fixes
Connection；
The bottom of the ruler A is provided with positioning convex along chi face, the present apparatus by set on main shaft ruler A, ruler B,
Ruler C and protractor；
The various materials are made of plastics.
The 4th embodiment of the present invention mainly includes：
One ruler A, one are ruler B, and one ruler C, wherein：The ruler A, ruler B and ruler C one end pass through main shaft
Connection；
Ruler A, ruler B and ruler C overlap each other, and ruler B is located in the middle of ruler A and ruler C, the company of being additionally provided with the main shaft
Extension bar；
The connecting rod other end is connected with protractor by auxiliary spindle, and the connected mode of the connecting rod and main shaft is fixes
Connection；
The bottom of the ruler A is provided with positioning convex along chi face, the present apparatus by set on main shaft ruler A, ruler B,
Ruler C and protractor；
The various materials are made by hollow aluminium alloy.
Claims (4)
1. a kind of special drawing combination tool of mathematics teacher's writing on the blackboard, it is characterised in that：
Mainly include：
One ruler A, one are ruler B, and one ruler C, wherein：The ruler A, ruler B and ruler C one end pass through main shaft
Connection；
Ruler A, ruler B and ruler C overlap each other, and ruler B is located in the middle of ruler A and ruler C, the company of being additionally provided with the main shaft
Extension bar；
The connecting rod other end is connected with protractor by auxiliary spindle, and the connected mode of the connecting rod and main shaft is fixes
Connection；
The bottom of the ruler A is provided with positioning convex along chi face, the present apparatus by set on main shaft ruler A, ruler B,
Ruler C and protractor.
2. the special drawing combination tool of mathematics teacher's writing on the blackboard according to claim 1, it is characterised in that：
Mainly include：
One ruler A, one are ruler B, and one ruler C, wherein：The ruler A, ruler B and ruler C one end pass through main shaft
Connection；
Ruler A, ruler B and ruler C overlap each other, and ruler B is located in the middle of ruler A and ruler C, the company of being additionally provided with the main shaft
Extension bar；
The connecting rod other end is connected with protractor by auxiliary spindle, and the connected mode of the connecting rod and main shaft is fixes
Connection；
The bottom of the ruler A is provided with positioning convex along chi face, the present apparatus by set on main shaft ruler A, ruler B,
Ruler C and protractor；
The various materials are made by timber.
3. the special drawing combination tool of mathematics teacher's writing on the blackboard according to claim 1, it is characterised in that：
Mainly include：
One ruler A, one are ruler B, and one ruler C, wherein：The ruler A, ruler B and ruler C one end pass through main shaft
Connection；
Ruler A, ruler B and ruler C overlap each other, and ruler B is located in the middle of ruler A and ruler C, the company of being additionally provided with the main shaft
Extension bar；
The connecting rod other end is connected with protractor by auxiliary spindle, and the connected mode of the connecting rod and main shaft is fixes
Connection；
The bottom of the ruler A is provided with positioning convex along chi face, the present apparatus by set on main shaft ruler A, ruler B,
Ruler C and protractor；
The various materials are made of plastics.
4. the special drawing combination tool of mathematics teacher's writing on the blackboard according to claim 1, it is characterised in that：
Mainly include：
One ruler A, one are ruler B, and one ruler C, wherein：The ruler A, ruler B and ruler C one end pass through main shaft
Connection；
Ruler A, ruler B and ruler C overlap each other, and ruler B is located in the middle of ruler A and ruler C, the company of being additionally provided with the main shaft
Extension bar；
The connecting rod other end is connected with protractor by auxiliary spindle, and the connected mode of the connecting rod and main shaft is fixes
Connection；
The bottom of the ruler A is provided with positioning convex along chi face, the present apparatus by set on main shaft ruler A, ruler B,
Ruler C and protractor；
The various materials are made by hollow aluminium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610637260.9A CN107160918A (en) | 2016-08-07 | 2016-08-07 | The special drawing combination tool of mathematics teacher's writing on the blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610637260.9A CN107160918A (en) | 2016-08-07 | 2016-08-07 | The special drawing combination tool of mathematics teacher's writing on the blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107160918A true CN107160918A (en) | 2017-09-15 |
Family
ID=59848556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610637260.9A Pending CN107160918A (en) | 2016-08-07 | 2016-08-07 | The special drawing combination tool of mathematics teacher's writing on the blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107160918A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204586251U (en) * | 2015-03-09 | 2015-08-26 | 熊伟 | A kind of mathematics diagraph |
| CN204894899U (en) * | 2015-07-06 | 2015-12-23 | 李天明 | Multi -functional mathematics teaching aid |
| CN205185672U (en) * | 2015-12-03 | 2016-04-27 | 吉林工程技术师范学院 | Multi -functional plotting instrument |
| CN205395553U (en) * | 2016-02-27 | 2016-07-27 | 张发鸿 | Multi -purpose setting -out chi of mathematical education |
-
2016
- 2016-08-07 CN CN201610637260.9A patent/CN107160918A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204586251U (en) * | 2015-03-09 | 2015-08-26 | 熊伟 | A kind of mathematics diagraph |
| CN204894899U (en) * | 2015-07-06 | 2015-12-23 | 李天明 | Multi -functional mathematics teaching aid |
| CN205185672U (en) * | 2015-12-03 | 2016-04-27 | 吉林工程技术师范学院 | Multi -functional plotting instrument |
| CN205395553U (en) * | 2016-02-27 | 2016-07-27 | 张发鸿 | Multi -purpose setting -out chi of mathematical education |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170915 |
|
| WD01 | Invention patent application deemed withdrawn after publication |