CN203920155U - Blackboard Combined plotting instrument - Google Patents
Blackboard Combined plotting instrument Download PDFInfo
- Publication number
- CN203920155U CN203920155U CN201420226113.9U CN201420226113U CN203920155U CN 203920155 U CN203920155 U CN 203920155U CN 201420226113 U CN201420226113 U CN 201420226113U CN 203920155 U CN203920155 U CN 203920155U
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- CN
- China
- Prior art keywords
- dial
- blackboard
- square
- set lever
- ratio
- 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
Blackboard Combined plotting instrument, comprise guide rail, for the T-square along guide rail horizontal sliding, for the dial along the upper and lower slippage of the vertical bar of T-square, the dial set lever for lock dial, ratio pantograph set lever, ratio pantograph, drawing template, described guide rails assembling is above blackboard; T-square comprises the horizon bar that is positioned at upper end and the vertical bar that is positioned at lower end, and horizon bar is arranged in the corresponding chute of guide rail by rolling pulley, and T-square motion track covers whole blackboard; Dial and T-square are slidably connected, and dial is locked by dial set lever and T-square; One end of ratio pantograph is hinged on ratio pantograph passing ratio chi set lever and dial locking on dial; On graphics template, is furnished with figure groove.The beneficial effects of the utility model are: polygonal shape and the standard of standard straight-line and various rules at any angle of drawing amplified figure; Simple and practical, with low cost, easy to operate, of many uses.
Description
Technical field
The utility model relates to a kind of blackboard Combined plotting instrument.
Background technology
Blackboard is the main classroom instruction apparatus generally using from primary school to university at present.According to statistics, the whole nation is existing approximately has blackboard to add up to 455.75 ten thousand, does not also include the blackboard of enterprises and institutions interior.
In universities, middle and primary schools' teaching process, teacher not only needs writing words, formula on blackboard, also need to draw, and as the various figures in mathematics and geometry, various circuit and schematic diagram in physics, the various maps in geography etc.Regular figure in figure is as polygon or circle, and teacher can be by set square or drawing for compasses, but as irregular figures such as map, various schematic diagrams, now do not have instrument to use, be all often that teacher draws with chalk is manual, manual effect of drawing is not accurate enough, and slow.
For the foregoing reasons, design a kind of comprehensive plotter, make teacher can draw various figures accurately, obviously necessary.
Summary of the invention
The utility model is inaccurate for free-hand drawing on current blackboard, and the problem wasting time and energy has proposed a kind of blackboard Combined plotting instrument of drawing accurate, time saving and energy saving.
Blackboard Combined plotting instrument described in the utility model, it is characterized in that: comprise guide rail, for the T-square along guide rail horizontal sliding, for the dial along the upper and lower slippage of the vertical bar of T-square, the dial set lever for lock dial, ratio pantograph set lever, ratio pantograph, drawing template, described guide rails assembling is above blackboard; Described T-square comprises the horizon bar that is positioned at upper end and the vertical bar that is positioned at lower end, and described horizon bar is arranged in the corresponding chute of guide rail by rolling pulley, and described T-square motion track covers whole blackboard; Described dial and described T-square are slidably connected, and described dial is locked by dial set lever and T-square; One end of described ratio pantograph is hinged on dial, and described ratio pantograph passing ratio chi set lever and dial locking; On described graphics template, be furnished with figure groove, described figure groove is according to mathematic graph, geometrical model, chemical graphs, geographical graphic, the biological image making template that classifies.
Described guide rail is horizontally fixed on blackboard top, and its length is greater than blackboard length.
Described guide rail is horizontally fixed on blackboard top, and its length is greater than blackboard length 100CM.
Described ratio pantograph is parallelogram linkage, and the locating hole of evenly arranging on 4 connecting rods of ratio pantograph.
The outer surface of described dial is with the scale of 0 °～360 °, described dial is provided with and the corresponding chute of the vertical bar cross sectional shape of T-square, described dial is slidably connected by the vertical bar of chute and T-square, and described dial arrives the optional position of blackboard short transverse along the upper and lower slippage of vertical bar of T-square.
Described dial set lever and described dial are spirally connected, and described dial is locked at the optional position on T-square by dial set lever.
The center of described dial is furnished with bearing pin, and one end of described ratio pantograph is hinged on the bearing pin of dial.
The center of described ratio pantograph set lever and described dial is spirally connected, and described ratio pantograph passing ratio chi set lever is locked at any angular position of dial.
The described graphics template back side is equipped with four for being adsorbed on the magnet on blackboard.
During use, user's T-square that slides according to actual needs, thus determine the position of T-square, then along the upper and lower slippage of T-square, adjust the position of dial, adjust the rear dial set lever that utilizes and dial is locked on the arbitrary height position of T-square; Because one end of ratio pantograph is hinged on dial, therefore can be around the central rotation of dial one week, after ratio pantograph is adjusted to suitable position, passing ratio chi set lever is locked at any angular position on dial by engineer's scale, in whole process, only need be by the slippage of T-square and dial and the anglec of rotation of ratio pantograph, can use ratio pantograph as ruler and can on blackboard, draw straight line at any angle in optional position, thereby can draw the regular geometric figure of various angles.And need to draw some specific figures time, only the profiling pen of engineer's scale need be leaned against in the figure groove of graphics template, the mobile pen of drawing just can draw an irregular figure for the amplification similar to figure on graphics template.
The beneficial effects of the utility model are:
(1) can be on blackboard optional position draw the polygonal shape of standard straight-line and various rules at any angle;
(2) standard of utilizing drawing template can draw all figures in template is amplified figure;
(3) this apparatus structure is simple and practical, with low cost, easy to operate, of many uses.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, further illustrate the utility model
With reference to accompanying drawing:
Blackboard Combined plotting instrument described in the utility model, comprise guide rail 1, for the T-square 2 along guide rail horizontal sliding, for the dial 3 along the upper and lower slippage of the vertical bar of T-square, the dial set lever 4 for lock dial, ratio pantograph set lever 5, ratio pantograph 6, graphics template 7, described guide rail 1 is arranged on blackboard 8 tops; Described T-square 2 comprises the horizon bar that is positioned at upper end and the vertical bar that is positioned at lower end, and described horizon bar is arranged in the corresponding chute of guide rail 1 by rolling pulley, and described T-square 2 motion tracks cover whole blackboard 8; Described dial 3 is slidably connected with described T-square 2, and described dial 3 is by dial set lever 4 and T-square 2 lockings; One end of described ratio pantograph 6 is hinged on dial 3, and described ratio pantograph 6 passing ratio chi set levers 5 and dial locking; On described graphics template 7, be furnished with figure groove, described figure groove is according to mathematic graph, geometrical model, chemical graphs, geographical graphic, the biological image making template that classifies.
Described guide rail 1 is horizontally fixed on blackboard 8 tops, and its length is greater than blackboard length.
Described guide rail 1 is horizontally fixed on blackboard 8 tops, and its length is greater than blackboard length 100CM.
Described ratio pantograph 6 is parallelogram linkage, and the locating hole of evenly arranging on 4 connecting rods of ratio pantograph.
The outer surface of described dial 3 is with the scale of 0 °～360 °, described dial 3 is provided with and the corresponding chute of T-square 2 vertical bar cross sectional shape, described dial 3 is slidably connected by the vertical bar of chute and T-square 2, and described dial 3 arrives the optional position of blackboard 8 short transverses along the upper and lower slippage of vertical bar of T-square 2.
Described dial set lever 4 is spirally connected with described dial 3, and described dial 3 is locked at the optional position on T-square 2 by dial set lever 4.
The center of described dial 3 is furnished with bearing pin, and one end of described ratio pantograph 6 is hinged on the bearing pin of dial 3.
Described ratio pantograph set lever 5 is spirally connected with the center of described dial 3, and described ratio pantograph 6 passing ratio chi set levers 5 are locked at any angular position of dial 3.
Described graphics template 7 back sides are equipped with four for being adsorbed on the magnet on blackboard.
During use, user's T-square 2 that slides according to actual needs, thereby determine the position of T-square 2, then, along the position of T-square slippage adjustment dial 3 Shang Xia 2, adjust the rear dial set lever 4 that utilizes and dial 3 is locked on the arbitrary height position of T-square 2; Because one end of ratio pantograph 6 is hinged on dial 3, therefore can be around the central rotation of dial 3 one week, after ratio pantograph 6 is adjusted to suitable position, passing ratio chi set lever 5 is locked at any angular position on dial 3 by engineer's scale 6, in whole process, only need by T-square 2 and the slippage of dial 3 and the anglec of rotation of ratio pantograph 6, can use ratio pantograph 6 as ruler and can on blackboard 8, draw straight line at any angle in optional position, thereby can draw the regular geometric figure of various angles.And need to draw some specific figures time, only the profiling pen of engineer's scale need be leaned against in the figure groove of graphics template 7, the mobile pen of drawing just can draw an irregular figure for the amplification similar to figure on graphics template 7.
Content described in this description embodiment is only enumerating the way of realization of utility model design; protection domain of the present utility model should not be regarded as only limiting to the concrete form that embodiment states, protection domain of the present utility model also comprises those skilled in the art's equivalent technologies means that design can be expected according to the utility model.
Claims (9)
1. blackboard Combined plotting instrument, it is characterized in that: comprise guide rail, for the T-square along guide rail horizontal sliding, for the dial along the upper and lower slippage of the vertical bar of T-square, the dial set lever for lock dial, ratio pantograph set lever, ratio pantograph, drawing template, described guide rails assembling is above blackboard; Described T-square comprises the horizon bar that is positioned at upper end and the vertical bar that is positioned at lower end, and described horizon bar is arranged in the corresponding chute of guide rail by rolling pulley, and described T-square motion track covers whole blackboard; Described dial and described T-square are slidably connected, and described dial is locked by dial set lever and T-square; One end of described ratio pantograph is hinged on dial, and described ratio pantograph passing ratio chi set lever and dial locking; On described graphics template, be furnished with figure groove, described figure groove is according to mathematic graph, geometrical model, chemical graphs, geographical graphic, the biological image making template that classifies.
2. blackboard Combined plotting instrument as claimed in claim 1, is characterized in that: described guide rail is horizontally fixed on blackboard top, and its length is greater than blackboard length.
3. blackboard Combined plotting instrument as claimed in claim 2, is characterized in that: described guide rail is horizontally fixed on blackboard top, and its length is greater than blackboard length 100CM.
4. blackboard Combined plotting instrument as claimed in claim 3, is characterized in that: described ratio pantograph is parallelogram linkage, and the locating hole of evenly arranging on 4 connecting rods of ratio pantograph.
5. blackboard Combined plotting instrument as claimed in claim 3, it is characterized in that: the outer surface of described dial is with the scale of 0 °～360 °, described dial is provided with and the corresponding chute of the vertical bar cross sectional shape of T-square, described dial is slidably connected by the vertical bar of chute and T-square, and described dial arrives the optional position of blackboard short transverse along the upper and lower slippage of vertical bar of T-square.
6. blackboard Combined plotting instrument as claimed in claim 5, is characterized in that: described dial set lever and described dial are spirally connected, and described dial is locked at the optional position on T-square by dial set lever.
7. blackboard Combined plotting instrument as claimed in claim 6, is characterized in that: the center of described dial is furnished with bearing pin, and one end of described ratio pantograph is hinged on the bearing pin of dial.
8. blackboard Combined plotting instrument as claimed in claim 3, is characterized in that: the center of described ratio pantograph set lever and described dial is spirally connected, and described ratio pantograph passing ratio chi set lever is locked at any angular position of dial.
9. blackboard Combined plotting instrument as claimed in claim 1, is characterized in that: the described graphics template back side is equipped with four for being adsorbed on the magnet on blackboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420226113.9U CN203920155U (en) | 2014-05-04 | 2014-05-04 | Blackboard Combined plotting instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420226113.9U CN203920155U (en) | 2014-05-04 | 2014-05-04 | Blackboard Combined plotting instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203920155U true CN203920155U (en) | 2014-11-05 |
Family
ID=51816023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420226113.9U Expired - Fee Related CN203920155U (en) | 2014-05-04 | 2014-05-04 | Blackboard Combined plotting instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203920155U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106515279A (en) * | 2016-11-30 | 2017-03-22 | 河南机电高等专科学校 | Automatic drawing device for math teaching |
| CN107718954A (en) * | 2017-08-31 | 2018-02-23 | 邹先微 | It is a kind of to facilitate picture ellipse ruler |
| CN110039930A (en) * | 2019-04-26 | 2019-07-23 | 陕西理工大学 | A kind of multi-functional geometric drawing ruler |
| CN112277478A (en) * | 2020-10-26 | 2021-01-29 | 江苏安全技术职业学院 | Graph duplicator |
| CN112319102A (en) * | 2020-11-25 | 2021-02-05 | 厦门工学院 | Drawing device for statistics |
-
2014
- 2014-05-04 CN CN201420226113.9U patent/CN203920155U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106515279A (en) * | 2016-11-30 | 2017-03-22 | 河南机电高等专科学校 | Automatic drawing device for math teaching |
| CN106515279B (en) * | 2016-11-30 | 2018-05-22 | 河南工学院 | A kind of autochart device for mathematical education |
| CN107718954A (en) * | 2017-08-31 | 2018-02-23 | 邹先微 | It is a kind of to facilitate picture ellipse ruler |
| CN110039930A (en) * | 2019-04-26 | 2019-07-23 | 陕西理工大学 | A kind of multi-functional geometric drawing ruler |
| CN112277478A (en) * | 2020-10-26 | 2021-01-29 | 江苏安全技术职业学院 | Graph duplicator |
| CN112277478B (en) * | 2020-10-26 | 2021-05-28 | 江苏安全技术职业学院 | Graph duplicator |
| CN112319102A (en) * | 2020-11-25 | 2021-02-05 | 厦门工学院 | Drawing device for statistics |
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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 |
Granted publication date: 20141105 Termination date: 20170504 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |