CN205238951U - Laser positioning group closes chi for mathematical education - Google Patents
Laser positioning group closes chi for mathematical education Download PDFInfo
- Publication number
- CN205238951U CN205238951U CN201521079356.5U CN201521079356U CN205238951U CN 205238951 U CN205238951 U CN 205238951U CN 201521079356 U CN201521079356 U CN 201521079356U CN 205238951 U CN205238951 U CN 205238951U
- Authority
- CN
- China
- Prior art keywords
- protractor
- laser
- ruler
- inner panel
- mathematical education
- 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 discloses a laser positioning group closes chi for mathematical education, including ruler board, protractor planking and the protractor inner panel of setting on the ruler board, all be equipped with the scale on ruler board, protractor planking and the protractor inner panel be provided with the handle on the protractor inner panel surface, still include two laser positioner, set up on the ruler board in there being the threaded pivot, what the setting of laser positioner tail end was passed in the pivot has an internal screw thread bolt through -hole, by aluminum -plastic laminated tube with two laser positioner restrictions on the pivot, laser positioner makes things convenient for teacher along the straight line of the laser positioning complete straight long straight line that draws up, can make two laser beams form arbitrary angle, practice thrift the teacher greatly and constantly measured the process that the angle was painted and is explained at the teaching in -process, improve the efficiency of giving lessons, bring very big facility for numerous teachers and students, can improve the quality of teaching, and convenient to carry.
Description
Technical field
The utility model relates to teaching aid technical field, is specifically related to a kind of mathematics teaching tool.
Background technology
In mathematical education process, the educational aid that mathematics teacher uses is more, ruler, protractor, all kinds of educational aids such as set square all need to use in teaching process, traditional math teaching aid mostly is independent design, carries, uses all and inconvenience, brings many inconvenience to teacher's teaching.
Combined ruler for mathematical education of the prior art is due to the length restriction of structure, and for example, teacher is teaching in journey, need to use ruler to draw longer lines time, mobile ruler repeatedly, and draw not straight, very inconvenience; Or signal straight line position time, repeatedly draw and repeatedly wipe, also exert a certain influence for teaching process, reduced quality of instruction.
Utility model content
The purpose of this utility model is to provide a kind of mathematical education laser positioning combination ruler, to solve the problem proposing in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme: a kind of mathematical education laser positioning combination ruler, comprise ruler plate, be arranged on protractor outside plate and protractor inner panel on ruler plate, described ruler plate, on protractor outside plate and protractor inner panel, be equipped with scale, on described protractor inner panel surface, be provided with handle, also comprise two laser locating apparatus, on described ruler plate, be arranged at threaded rotating shaft, rotating shaft is through the female bolt hole of being with of laser locating apparatus tail end setting, by nuts, two laser locating apparatus are limited on rotating shaft,
Preferably, described laser locating apparatus is laser pen;
Preferably, the back side of described ruler plate, protractor outside plate and protractor inner panel is provided with sucker;
Preferably, the quantity of described sucker is no less than 3, and is evenly distributed in the back side of ruler plate, protractor outside plate and protractor inner panel.
Compared with prior art, the beneficial effects of the utility model are: this mathematical education facilitates teacher to draw complete straight long straight line along the straight line of laser positioning with the laser locating apparatus arranging on laser positioning combination ruler; In the time of signal linear position, be free to laser beam to be positioned at optional position, needn't repeatedly draw and repeatedly wipe, improve efficiency of teaching; Two rotatable laser locating apparatus, can make two laser beam compositions arbitrarily angled, play demonstration effect, greatly saved teacher's process of explanation of painting that constantly takes measurement of an angle in teaching process, improve the efficiency of giving lessons, bring great convenience to numerous teachers and students, can improve the quality of teaching, and easy to carry.
Brief description of the drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model figure side view structural representation.
In figure: 1 ruler plate, 2 protractor outside plates, 3 protractor inner panels, 4 laser locating apparatus, 5 rotating shafts, 6 handles, 7 nuts, 8 suckers.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment. Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1 and Fig. 2, the utility model provides a kind of technical scheme: a kind of mathematical education laser positioning combination ruler, comprise ruler plate 1, be arranged on protractor outside plate 2 and protractor inner panel 3 on ruler plate 1, on described ruler plate 1, protractor outside plate 2 and protractor inner panel 3, be equipped with scale, can draw the angle of straight line or the certain angle of certain length;
On described protractor inner panel 3 surfaces, be provided with handle 6, facilitate hand-held combination ruler to be attached on blackboard;
Two laser locating apparatus 4, on described ruler plate 1, be arranged at threaded rotating shaft 5, rotating shaft 5 is through the female bolt hole of being with of laser locating apparatus 4 tail end settings, by nuts 7, two laser locating apparatus 4 are limited on rotating shaft 5, two laser locating apparatus 4 can be free to rotate to arbitrarily angled in rotating shaft 5;
Described laser locating apparatus 4 is laser pen; The back side of described ruler plate 1, protractor outside plate 2 and protractor inner panel 3 is provided with sucker 8, and frictional force between blackboard increases, and makes stable being attached on blackboard of mathematical education of the present utility model laser positioning combination ruler, convenient teaching;
The quantity of described sucker 8 is no less than three, and is evenly distributed in the back side of ruler plate 1, protractor outside plate 2 and protractor inner panel 3, has strengthened mathematical education of the present utility model laser positioning combination and has eaten chi stability, has further improved quality of instruction.
Although illustrated and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that in the situation that not departing from principle of the present utility model and spirit and can carry out multiple variation, amendment, replacement and modification to these embodiment, scope of the present utility model is limited by claims and equivalent thereof.
Claims (4)
1. a mathematical education laser positioning combination ruler, comprise ruler plate (1), be arranged on protractor outside plate (2) and protractor inner panel (3) on ruler plate (1), described ruler plate (1), on protractor outside plate (2) and protractor inner panel (3), be equipped with scale, on described protractor inner panel (3) surface, be provided with handle (6), it is characterized in that: also comprise two laser locating apparatus (4), on described ruler plate (1), be arranged at threaded rotating shaft (5), rotating shaft (5) is through the female bolt hole of being with of laser locating apparatus (4) tail end setting, by nuts (7), two laser locating apparatus (4) are limited on rotating shaft (5).
2. a kind of mathematical education laser positioning combination ruler according to claim 1, is characterized in that: described laser locating apparatus (4) is laser pen.
3. a kind of mathematical education laser positioning combination ruler according to claim 1, is characterized in that: the back side of described ruler plate (1), protractor outside plate (2) and protractor inner panel (3) is provided with sucker (8).
4. a kind of mathematical education laser positioning combination ruler according to claim 3, is characterized in that: the quantity of described sucker (8) is no less than 3, and is evenly distributed in the back side of ruler plate (1), protractor outside plate (2) and protractor inner panel (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521079356.5U CN205238951U (en) | 2015-12-23 | 2015-12-23 | Laser positioning group closes chi for mathematical education |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521079356.5U CN205238951U (en) | 2015-12-23 | 2015-12-23 | Laser positioning group closes chi for mathematical education |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205238951U true CN205238951U (en) | 2016-05-18 |
Family
ID=55938026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521079356.5U Expired - Fee Related CN205238951U (en) | 2015-12-23 | 2015-12-23 | Laser positioning group closes chi for mathematical education |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205238951U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110030930A (en) * | 2019-03-28 | 2019-07-19 | 淮阴工学院 | Portable trace angle and length acquisition device |
-
2015
- 2015-12-23 CN CN201521079356.5U patent/CN205238951U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110030930A (en) * | 2019-03-28 | 2019-07-19 | 淮阴工学院 | Portable trace angle and length acquisition device |
| CN110030930B (en) * | 2019-03-28 | 2021-10-01 | 淮阴工学院 | Portable trace angle and length acquisition device |
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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: 20160518 Termination date: 20161223 |