CN206426721U - Geometry line tool is used in one kind teaching - Google Patents
Geometry line tool is used in one kind teaching Download PDFInfo
- Publication number
- CN206426721U CN206426721U CN201720024021.6U CN201720024021U CN206426721U CN 206426721 U CN206426721 U CN 206426721U CN 201720024021 U CN201720024021 U CN 201720024021U CN 206426721 U CN206426721 U CN 206426721U
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- chi plate
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Abstract
The utility model discloses a kind of teaching geometry line tool, including it is rectangular first chi plate and the second chi plate, one end of the first chi plate offers square fluting, and one end of the second chi plate is plugged in square fluting and can moved back and forth in square fluting；The other end of first chi plate offers through hole A, and the other end of the second chi plate offers through hole B；First chi plate sets one end of square fluting to offer fixing hole, and the screw for making to be fastened between the first chi plate and the second chi plate is equipped with fixing hole；Multiple circular holes are uniformly offered on the center line of the first chi plate and the second chi plate length direction；Also include bracing wire rope, the two ends of bracing wire rope are connected to a cylindrical rod；Also include being removably connected with sucker on two cone rubber plugs for being respectively used to be fastened in through hole A and through hole B, the end face of the bigger diameter end of cone rubber plug.The utility model can draw straight line, circle and ellipse on same device, and easy to carry and use.
Description
Technical field
The utility model is related to teaching appliance field, concretely relates to a kind of teaching geometry line tool.
Background technology
In the teaching process of math teacher, when acquiring the chapters and sections of analytic geometry, because course arrangement can learn to ellipse
The knowledge such as circle, circle, therefore teacher often draws geometric figure on the blackboard in classroom, to facilitate everybody study, due to old
The grounding in basic skills of teacher is different, causes the geometric figure and unsightly of Freehandhand-drawing, but when the figure drawn using special instrument,
But needing a more than instrument to complete, such as the instrument for drawing ellipse is independent, and it is also only to draw the circular compasses used
Vertical, the ruler that picture straight line is used is also independent, therefore in order to draw a complete analytic geometry figure, as usual 18
Skill in martial arts is gone into battle together, and this has just not only delayed classroom progress, also cause everybody feel that hours of instruction shorten, therefore design one kind can
Just seem necessary to merge straight line, circle and oval geometry line tool.
Utility model content
The utility model mainly can be by there is provided a kind of teaching geometry line tool to solve above-mentioned problem
Straight line, circle and ellipse are drawn on same device, and easy to carry and use.
To solve above-mentioned problem, the technical scheme that the utility model is used is：Geometry setting-out is used in one kind teaching
Instrument, including be rectangular first chi plate and the second chi plate, one end of the first chi plate offers square fluting, the second chi plate
One end be plugged in the square fluting and can be moved back and forth in square fluting；
The other end of first chi plate offers through hole A, and the other end of the second chi plate offers through hole B；
First chi plate sets one end of square fluting to offer fixing hole, and being equipped with fixing hole makes the first chi plate and the
The screw fastened between two chi plates；
Multiple circular holes are uniformly offered on the center line of the first chi plate and the second chi plate length direction；
Also include bracing wire rope, the two ends of bracing wire rope are connected to a cylindrical rod；
Also include two and be respectively used to the cone rubber plugs that are fastened in the through hole A and through hole B, cone rubber plug it is big
Sucker is removably connected with the end face at footpath end.
As a further improvement, one is installed with the end face of the miner diameter end of the sucker has externally threaded stud,
The groove for being engaged with the stud is offered on the end face of the miner diameter end of cone rubber plug.
Offered as a further improvement, the same side along its length of the first chi plate and the second chi plate is corresponded to respectively
Graduation mark.
As a further improvement, the equal length of the first chi plate and the second chi plate.
What the utility model was brought has the beneficial effect that：The utility model can be by straight line, circle and ellipse in same dress
Put and draw, this kind of structure, which is not only realized, is grouped together conventional multiple line tools, and easy to carry and use.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the schematic diagram when half of ellipse is drawn in the side of the first chi plate and the second chi plate；
Fig. 3 is the schematic diagram when the opposite side of the first chi plate and the second chi plate draws another half of ellipse；
Fig. 4 is the structural representation of rubber stopper and sucker；
Fig. 5 is the structural representation of sucker.
Marked in figure：1st, the first chi plate, 101, through hole A, 102, circular hole, the 2, second chi plate, 201, through hole B, 3, graduation mark,
4th, fixing hole, 5, bracing wire rope, 6, cone rubber plug, 7, sucker, 701, stud, 8, chalk.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment the utility model is described in further detail.
As illustrated, a kind of teaching geometry line tool, including it is rectangular first chi plate 1 and the second chi plate 2,
One end of first chi plate 1 offers square fluting, and one end of the second chi plate 2 is plugged in the square fluting and can be square
Moved back and forth in fluting.
The other end of first chi plate 1 offers through hole A101, and the other end of the second chi plate 2 offers through hole B201.
First chi plate 1 sets and offers fixing hole 4 on square fluting one end, and being equipped with fixing hole 4 makes the first chi plate 1
And second screw fastened between chi plate 2.
Multiple circular holes 102 are uniformly offered on the center line of first chi plate 1 and the length direction of the second chi plate 2.
Also include bracing wire rope 5, the two ends of bracing wire rope 5 are connected to a cylindrical rod, and cylindrical rod is embedded in through hole A101
In through hole B201, and it ensure that cylindrical rod is difficult to deviate from out of through hole A101 and through hole B201.
Also include two cone rubber plugs 6 for being used to be fastened in the through hole A101 and through hole B201, cone rubber plug 6
Bigger diameter end end face on be removably connected with sucker 7.
By the way that the miner diameter end of two cone rubber plugs 6 is inserted in through hole A101 and through hole B201 respectively, cone rubber plug 6
Bigger diameter end be installed in by sucker 7 on blackboard, straight line is drawn on blackboard along the edge of the first chi plate 1 or the second chi plate 2.
By the way that one end of a cone rubber plug 6 is inserted in the through hole A101, the other end of cone rubber plug 6 passes through
Sucker 7 is installed on blackboard, and chalk is inserted in through hole B201, and the first chi plate 1 and the second chi are rotated centered on through hole A101
Plate 2, draws the track of circular arc or circle.
By the way that one end of cone rubber plug 6 is inserted in the through hole A101 and through hole B201, cone rubber plug 6 it is another
End is installed on blackboard by sucker 7, and two cylindrical rods are inserted to the close edge of the first chi plate 1 and the second chi plate 2 respectively
In one circular hole, wherein, the length of bracing wire rope 5 is more than the distance between the through hole A101 center of circle and the through hole B201 center of circle, draws
Strain at the side of the chi of cotton rope 5 to the first plate 1 and the second chi plate 2 and the process for maintaining the bracing wire rope 5 to tense on blackboard with chalk
To draw half of elliptical orbit, the opposite side of the chi plate 1 of bracing wire rope 5 to the first and the second chi plate 2 is then tensed, with chalk 8 black
The process that the bracing wire rope 5 is tensed is maintained on plate to draw half of elliptical orbit, so as to complete the drafting of ellipse.
The end face of the miner diameter end of sucker 7, which is provided with, has externally threaded stud 701, and stud 701 is formed in one with sucker 7
Structure.
The groove for being engaged with the stud 701 is offered on the end face of the miner diameter end of cone rubber plug 6.
Along its length same of the equal length of first chi plate 1 and the second chi plate 2, the first chi plate 1 and the second chi plate 2
Side corresponds to offer graduation mark 3 respectively.
Operation principle of the present utility model is as follows：
The general character of the oval and circular technique of painting is made full use of, a device is cleverly realized in structure can just draw directly
Line, circle and ellipse, can not only change the position of oval focal length, while can also change the difference of circular radius, have more
Practicality.
Claims (4)
1. geometry line tool is used in one kind teaching, it is characterised in that：Including being rectangular first chi plate（1）With the second chi plate
（2）, the first chi plate（1）One end offer square fluting, the second chi plate（2）One end be plugged in the square fluting and energy
It is enough to be moved back and forth in square fluting；
First chi plate（1）The other end offer through hole A（101）, the second chi plate（2）The other end offer through hole B（201）；
First chi plate（1）One end of square fluting is set to offer fixing hole（4）, in fixing hole（4）Inside being equipped with makes the first chi
Plate（1）With the second chi plate（2）Between the screw that fastens；
In the first chi plate（1）With the second chi plate（2）Multiple circular holes are uniformly offered on the center line of length direction（102）；
Also include bracing wire rope（5）, bracing wire rope（5）Two ends be connected to a cylindrical rod；
Also it is respectively used to be fastened on the through hole A including two（101）With through hole B（201）Interior cone rubber plug（6）, taper
Rubber stopper（6）Bigger diameter end end face on be removably connected with sucker（7）.
2. geometry line tool is used in a kind of teaching according to claim 1, it is characterised in that：The sucker（7）Path
One is installed with the end face at end has externally threaded stud（701）, cone rubber plug（6）Miner diameter end end face on offer
For with the stud（701）The groove being engaged.
3. geometry line tool is used in a kind of teaching according to claim 2, it is characterised in that：First chi plate（1）With second
Chi plate（2）The same side along its length respectively correspond to offer graduation mark（3）.
4. geometry line tool is used in a kind of teaching according to claim 1, it is characterised in that：The first chi plate（1）With
Second chi plate（2）Equal length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720024021.6U CN206426721U (en) | 2017-01-10 | 2017-01-10 | Geometry line tool is used in one kind teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720024021.6U CN206426721U (en) | 2017-01-10 | 2017-01-10 | Geometry line tool is used in one kind teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206426721U true CN206426721U (en) | 2017-08-22 |
Family
ID=59585487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720024021.6U Expired - Fee Related CN206426721U (en) | 2017-01-10 | 2017-01-10 | Geometry line tool is used in one kind teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206426721U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107424484A (en) * | 2017-09-12 | 2017-12-01 | 赵英良 | A kind of high school mathematicses plane geometry learns demonstration device |
-
2017
- 2017-01-10 CN CN201720024021.6U patent/CN206426721U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107424484A (en) * | 2017-09-12 | 2017-12-01 | 赵英良 | A kind of high school mathematicses plane geometry learns demonstration device |
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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: 20170822 Termination date: 20190110 |