CN204586248U - A kind of novel teaching apparatus for mathematics - Google Patents
A kind of novel teaching apparatus for mathematics Download PDFInfo
- Publication number
- CN204586248U CN204586248U CN201520297198.4U CN201520297198U CN204586248U CN 204586248 U CN204586248 U CN 204586248U CN 201520297198 U CN201520297198 U CN 201520297198U CN 204586248 U CN204586248 U CN 204586248U
- Authority
- CN
- China
- Prior art keywords
- supporting leg
- protractor
- slide rail
- square groove
- groove slide
- 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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Abstract
The utility model relates to teaching apparatus, is specially a kind of novel teaching apparatus for mathematics.They compasses (3) comprising protractor (1) and be connected by rotating shaft (2) with protractor (1); Described compasses (3) are made up of the first supporting leg (301), the second supporting leg (302), and the first supporting leg (301), the second supporting leg (302) are flexibly connected with protractor (1) respectively by rotating shaft (2); Described the first supporting leg (301) is fixed with square groove slide rail (303) by nut, second supporting leg (302) is provided with the slide block (304) be connected with square groove slide rail (303), and square groove slide rail (303) surface is provided with scale (305); Described the first supporting leg (301) free end is provided with sucker (306), and the second supporting leg (302) free end is provided with paintbrush device (307).Its beneficial effect is: structure is simple, substitute thimble by sucker, adopts square groove slide rail to fix angle between two supporting legs, easy to use, fixing-stable simultaneously.
Description
Technical field
The utility model relates to the technical field of teaching apparatus, is specially a kind of novel teaching apparatus for mathematics.
Background technology
In the mathematical education of senior middle school, need the angle of drawing various geometric figure and various angle.Teacher is in teaching process, when use amount hornwork carries out the measurement of angle and draws, student is often made clearly not observe, especially the student sat in the back row, have impact on the study of student like this, and the drawing appliance that math teacher uses class hour has ruler and protractor etc. a lot, the function singleness of these instruments, as ruler can only draw straight line, protractor can only take measurement of an angle, so teacher needs ceaselessly to change teaching aid when drawing, affect mapping speed, reduce efficiency of teaching, use inconvenience, and the compass foot of compasses easily stabs student in carrying process, abnormally dangerous.Application number is the utility model patent of 201320830352.0, it discloses a kind of teaching apparatus for mathematics, solve problem described above, but it is by the support of thimble as mapping fixing point, its teacher and student can fix instability when drawing, and arbitrarily move, affect plotting quality and quality of instruction; And when this teaching apparatus for mathematics teacher or student two hand respectively hold a supporting leg of compasses, because the damping between two supporting legs is large not, its angle easily changes, when making mapping, radius can change, impact mapping and quality of instruction.Therefore for this problem, we have developed a kind of structure simple, substitute thimble by sucker, adopt square groove slide rail to fix the novel teaching apparatus for mathematics of the angle between two supporting legs, its easy to use, fixing-stable simultaneously.
Utility model content
The purpose of this utility model is for above-described problems of the prior art, there is provided a kind of structure simple, substitute thimble by sucker, adopt square groove slide rail to fix the novel teaching apparatus for mathematics of the angle between two supporting legs, its easy to use, fixing-stable simultaneously.
In order to realize described object, the utility model specifically adopts following technical scheme:
A novel teaching apparatus for mathematics, they compasses 3 comprising protractor 1 and be connected by rotating shaft 2 with protractor 1.It is characterized in that: described compasses 3 are made up of the first supporting leg 301, second supporting leg 302, and the first supporting leg 301, second supporting leg 302 is flexibly connected with protractor 1 respectively by rotating shaft 2; The first described supporting leg 301 is fixed with square groove slide rail 303, second supporting leg 302 by nut and is provided with the slide block 304 be connected with square groove slide rail 303, and square groove slide rail 303 surface is provided with scale 305; The first described supporting leg 301 free end is provided with sucker 306, and the second supporting leg 302 free end is provided with paintbrush device 307.
In described paintbrush device 307, paintbrush is installed.
Described protractor 1 is provided with fixed handle 4.
Described fixed handle 4 is flexibly connected by nut with protractor 1.
Compared with prior art, the beneficial effects of the utility model are: the first one, described supporting leg 301 is fixed with square groove slide rail 303 by nut, second supporting leg 302 is provided with the slide block 304 be connected with square groove slide rail 303, and square groove slide rail 303 surface is provided with scale 305, it can determine drawn radius of a circle easily by scale 305, easy to use; Two, the first described supporting leg 301 free end is provided with sucker 306, second supporting leg 302 free end is provided with paintbrush device 307, it is absorbed and fixed at the optional position of blackboard or homework book with the form of sucker 306, not only not easily slide, and the paper of blackboard face coat and homework book can not be poked, improve plotting quality and quality of instruction; Three, described protractor 1 is provided with fixed handle 4, facilitate student, teacher to this teaching aid take, put, easy to use; Four, this teaching aid structure is simple, reasonable in design, easy to use, can alleviate the burden of teacher and student, improves efficiency of teaching and plotting quality.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model.
Fig. 2 is rearview of the present utility model.
In figure: protractor 1, rotating shaft 2, compasses 3, fixed handle 4, the first supporting leg 301, second supporting leg 302, square groove slide rail 303, slide block 304, scale 305, sucker 306, paintbrush device 307.
Detailed description of the invention
Below in conjunction with accompanying drawing 1, accompanying drawing 2, structure of the present utility model and beneficial effect thereof are further illustrated.
Embodiment 1
A novel teaching apparatus for mathematics, as shown in Figure 1, they compasses 3 comprising protractor 1 and be connected by rotating shaft 2 with protractor 1; Described compasses 3 are made up of the first supporting leg 301, second supporting leg 302, and the first supporting leg 301, second supporting leg 302 is flexibly connected with protractor 1 respectively by rotating shaft 2; The first described supporting leg 301 is fixed with square groove slide rail 303, second supporting leg 302 by nut and is provided with the slide block 304 be connected with square groove slide rail 303, and square groove slide rail 303 surface is provided with scale 305; The first described supporting leg 301 free end is provided with sucker 306, and the second supporting leg 302 free end is provided with paintbrush device 307.
In described paintbrush device 307, paintbrush is installed.
Described protractor 1 is provided with fixed handle 4, and fixed handle 4 is flexibly connected by nut with protractor 1, facilitate student, teacher to this teaching aid take, put, easy to use.
The first described supporting leg 301 is fixed with square groove slide rail 303 by nut, second supporting leg 302 is provided with the slide block 304 be connected with square groove slide rail 303, and square groove slide rail 303 surface is provided with scale 305, it can determine drawn radius of a circle easily by regulating square groove slide rail 303, slide block 304 and scale 305, easy to use.
As shown in Figure 1, as it needs picture radius to be the bowlder of 3cm, slide block 304 is moved to the 3cm place that scale 305 shows, then sucker 306 is adsorbed in blackboard or operation, carry out picture circle; It is absorbed and fixed at the optional position of blackboard or homework book with the form of sucker 306, not only not easily slide, and the paper of blackboard face coat and homework book can not be poked, improve plotting quality and quality of instruction, this teaching aid structure is simple, reasonable in design, easy to use, the burden of teacher and student can be alleviated, improve efficiency of teaching and plotting quality.
Embodiment 2
A novel teaching apparatus for mathematics, its concrete structure as described in Example 1.
As shown in Figure 1, as it needs picture radius to be the bowlder of 5cm, slide block 304 is moved to the 5cm place that scale 305 shows, then sucker 306 is adsorbed in blackboard or operation, carry out picture circle; It is absorbed and fixed at the optional position of blackboard or homework book with the form of sucker 306, not only not easily slide, and the paper of blackboard face coat and homework book can not be poked, improve plotting quality and quality of instruction, this teaching aid structure is simple, reasonable in design, easy to use, the burden of teacher and student can be alleviated, improve efficiency of teaching and plotting quality.
As needs take measurement of an angle time, be merged together by the first supporting leg 301, second supporting leg 302, then carry out angular surveying, it is easy to use.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. a novel teaching apparatus for mathematics, they compasses (3) comprising protractor (1) and be connected by rotating shaft (2) with protractor (1); It is characterized in that: described compasses (3) are made up of the first supporting leg (301), the second supporting leg (302), and the first supporting leg (301), the second supporting leg (302) are flexibly connected with protractor (1) respectively by rotating shaft (2); Described the first supporting leg (301) is fixed with square groove slide rail (303) by nut, second supporting leg (302) is provided with the slide block (304) be connected with square groove slide rail (303), and square groove slide rail (303) surface is provided with scale (305); Described the first supporting leg (301) free end is provided with sucker (306), and the second supporting leg (302) free end is provided with paintbrush device (307).
2. a kind of novel teaching apparatus for mathematics according to claim 1, is characterized in that: be provided with paintbrush in described paintbrush device (307).
3. a kind of novel teaching apparatus for mathematics according to claim 1, is characterized in that: described protractor (1) is provided with fixed handle (4).
4. a kind of novel teaching apparatus for mathematics according to claim 3, is characterized in that: described fixed handle (4) is flexibly connected by nut with protractor (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520297198.4U CN204586248U (en) | 2015-05-11 | 2015-05-11 | A kind of novel teaching apparatus for mathematics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520297198.4U CN204586248U (en) | 2015-05-11 | 2015-05-11 | A kind of novel teaching apparatus for mathematics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204586248U true CN204586248U (en) | 2015-08-26 |
Family
ID=53922440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520297198.4U Expired - Fee Related CN204586248U (en) | 2015-05-11 | 2015-05-11 | A kind of novel teaching apparatus for mathematics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204586248U (en) |
-
2015
- 2015-05-11 CN CN201520297198.4U patent/CN204586248U/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 | ||
| 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: 20150826 Termination date: 20160511 |