CN208118805U - A kind of ruler used in mathematics teaching rule tool - Google Patents
A kind of ruler used in mathematics teaching rule tool Download PDFInfo
- Publication number
- CN208118805U CN208118805U CN201820504701.2U CN201820504701U CN208118805U CN 208118805 U CN208118805 U CN 208118805U CN 201820504701 U CN201820504701 U CN 201820504701U CN 208118805 U CN208118805 U CN 208118805U
- Authority
- CN
- China
- Prior art keywords
- ruler
- rotating hole
- support plate
- slideway
- center
- 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 educational aid technical fields,Especially a kind of ruler used in mathematics teaching advises tool,Including ruler and rotation ruler,The support plate isometric with it is equipped with above ruler,Ruler and the short side of support plate are linked together by vertical plate,Support plate is equipped with handle,Center position of support plate is equipped with the first rotating hole,It rotates ruler center and is equipped with the second rotating hole,Connector is equipped in first rotating hole and the second rotating hole,Connector lower cylinder middle section is equipped with groove,Second rotating hole is located in groove,The first slideway and the second slideway are equipped in the two sides of rotation related scale,The first chalk sets of holes are equipped in the first center,The second chalk sets of holes are equipped in the second center,The utility model eliminates contact pin structure,Reduce the damage to blackboard,The accident that teacher is avoided by contact pin scratches,Support plate is equipped with handle,Increase the pressure that ruler is contacted with blackboard,Prevent ruler in scratching process from sliding on blackboard.
Description
Technical field
The utility model relates to educational aid technical field, especially a kind of ruler used in mathematics teaching advises tool.
Background technique
Math teacher at school when, need to use ruler often and compasses mapped on blackboard, in existing technology, have
Many tools for combining ruler and compasses, facilitate the mapping of teacher, in order to fix the center of circle, existing ruler
Tool all has contact pin, and contact pin is although small, but can be damaged blackboard surface, and contact pin syringe needle point excessively is easy to hurt
People.
Summary of the invention
For overcome the deficiencies in the prior art, the utility model provides a kind of ruler used in mathematics teaching rule tool, this is practical new
Type is equipped with two rulers, and one as ruler using, and one picture circle is used to, and the center of two rulers is connected by connector, no
By contact pin structure, the fixation in the center of circle need to only be fixed ruler, will not damage blackboard and teacher is avoided surprisingly to be scratched by contact pin.
Used technical solution is the utility model in order to solve the technical problem：A kind of ruler used in mathematics teaching rule tool, packet
Include ruler and rotation ruler；The upper and lower part of straight related scale is designed with graduation mark, and rotation related scale top is equipped with graduation mark；Ruler
Top is equipped with the support plate isometric with it, and the short side of ruler and support plate is linked together by vertical plate, and vertical plate is adhesive in ruler
On the short side of support plate two sides；Support plate is equipped with handle, and handle is fixedly connected on the supporting plate；Center position of support plate is set
There is the first rotating hole, rotation ruler center is equipped with the second rotating hole；Connector is equipped in first rotating hole and the second rotating hole,
The top of connector is arc, and lower part is cylindrical body, and connector lower cylinder middle section is equipped with groove, and the second rotating hole is set
In groove, the bottom of connector is adhesive on straight related scale；The first slideway and second is equipped in the two sides of rotation related scale to slide
Road, the first slideway and the second slideway are isometric, and the first sliding block is equipped in the first slideway, and the second sliding block is equipped in the second slideway,
First sliding block and the second sliding block are I-shaped sliding block, the first chalk sets of holes are equipped in the first center, in the second center
Equipped with the second chalk sets of holes.
Further, the width of support plate is the half of ruler width.
Further, the shape of vertical plate is isosceles trapezoid.
Further, diameter of the diameter of the second rotating hole less than the first rotating hole.
Further, the cylindrical radius of groove is less than the radius of both ends cylinder.
The utility model has the beneficial effects that：A kind of ruler used in mathematics teaching rule tool, two rulers of the ruler tool lead to
It crosses connector to link together, eliminates contact pin structure, reduce the damage to blackboard, avoid accident of the teacher by contact pin
It scratches, support plate is equipped with handle, increases the pressure that ruler is contacted with blackboard, prevents ruler in scratching process sliding on blackboard
It is dynamic.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of the utility model expansion.
Fig. 3 is the top view of the utility model.
Fig. 4 is the ruler and rotation ruler schematic diagram of the utility model.
Fig. 5 is the slide block schematic diagram of the utility model.
Fig. 6 is the connector schematic diagram of the utility model.
1. support plate in figure, 2. rulers, 3. graduation marks, 4. handles, 5. connectors, 6. rotation rulers, 7. first slideways, 8. the
Two slideways, 9. first sliding blocks, 10. second sliding blocks, 11. first chalk sets of holes, 12. second chalk sets of holes, 13. first rotating holes,
14. the second rotating hole, 15. grooves, 16. vertical plates.
Specific embodiment
Referring to attached drawing, a kind of ruler used in mathematics teaching rule tool, including ruler 2 and rotation ruler 6；The top in 2 ruler face of ruler and
Lower part is designed with graduation mark 3, and rotation 6 ruler face top of ruler is equipped with graduation mark 3；The support plate 1 isometric with it is equipped with above ruler 2,
Ruler 2 and the short side of support plate 1 are linked together by vertical plate 16, and the shape of vertical plate 16 is isosceles trapezoid, and vertical plate 16 is adhesive in
On the short side of 1 two sides of ruler 2 and support plate, the width of support plate 1 is the half of 2 width of ruler；Support plate 1 is equipped with handle
Hand 4, handle 4 are fixedly connected in support plate 1；1 center of support plate is equipped with the first rotating hole 13, rotates 6 center of ruler
Equipped with the second rotating hole 14, the diameter of the diameter of the second rotating hole 14 less than the first rotating hole 13；First rotating hole 13 and second
It is equipped with connector 5 in rotating hole 14, the top of connector 5 is arc, and lower part is cylindrical body, among 5 lower cylinder of connector
Part is equipped with groove 15, and the second rotating hole 14 is located in groove 15, and the cylindrical radius of groove 15 is less than the radius of both ends cylinder, even
The bottom of connector 5 is adhesive on 2 ruler face of ruler；Rotation 6 ruler face of ruler two sides be equipped with the first slideway 7 and the second slideway 8, first
Slideway 7 and the second slideway 8 are isometric, and the first sliding block 9 is equipped in the first slideway 7, and the second sliding block 10 is equipped in the second slideway 8,
First sliding block 9 and the second sliding block 10 are I-shaped sliding block, are equipped with the first chalk sets of holes 11 at 9 center of the first sliding block, sliding second
10 center of block is equipped with the second chalk sets of holes 12.
Ruler 2 is placed on blackboard by workflow when to draw straight line on blackboard, is held handle 4 and is fixed ruler 2
Straight line can be drawn, when bowlder to be drawn, chalk is inserted in the first chalk sleeve 11 and the second chalk sleeve 12, by the first sliding block 9 and
Two sliding blocks 10 slide into the position of identical size, and rotation rotation ruler 6 can draw circle.
Claims (5)
1. a kind of ruler used in mathematics teaching advises tool, including ruler and rotation ruler；The upper and lower part of straight related scale is designed with scale
Line, rotation related scale top are equipped with graduation mark；It is characterized in that, being equipped with the support plate isometric with it, ruler and branch above ruler
The short side of fagging is linked together by vertical plate, and vertical plate is adhesive on ruler and the short side of support plate two sides；Support plate is equipped with
Handle, handle are fixedly connected on the supporting plate；Center position of support plate is equipped with the first rotating hole, and rotation ruler center is equipped with the
Two rotating holes；Connector is equipped in first rotating hole and the second rotating hole, the top of connector is arc, and lower part is cylindrical body,
Connector lower cylinder middle section is equipped with groove, and the second rotating hole is located in groove, and the bottom of connector is adhesive in ruler
On ruler face；It is equipped with the first slideway and the second slideway in the two sides of rotation related scale, the first slideway and the second slideway are isometric, first
It is equipped with the first sliding block in slideway, the second sliding block is equipped in the second slideway, the first sliding block and the second sliding block are I-shaped sliding block,
First center is equipped with the first chalk sets of holes, is equipped with the second chalk sets of holes in the second center.
2. ruler used in mathematics teaching according to claim 1 advises tool, which is characterized in that the width of support plate is ruler width
Half.
3. ruler used in mathematics teaching according to claim 1 advises tool, which is characterized in that the shape of vertical plate is isosceles trapezoid.
4. ruler used in mathematics teaching according to claim 1 advises tool, which is characterized in that the diameter of the second rotating hole is less than the
The diameter of one rotating hole.
5. ruler used in mathematics teaching according to claim 1 advises tool, which is characterized in that the cylindrical radius of groove is less than both ends
The radius of cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820504701.2U CN208118805U (en) | 2018-04-11 | 2018-04-11 | A kind of ruler used in mathematics teaching rule tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820504701.2U CN208118805U (en) | 2018-04-11 | 2018-04-11 | A kind of ruler used in mathematics teaching rule tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208118805U true CN208118805U (en) | 2018-11-20 |
Family
ID=64191042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820504701.2U Expired - Fee Related CN208118805U (en) | 2018-04-11 | 2018-04-11 | A kind of ruler used in mathematics teaching rule tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208118805U (en) |
-
2018
- 2018-04-11 CN CN201820504701.2U patent/CN208118805U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181120 Termination date: 20190411 |