CN107554148A - A kind of Multi-function drawing apparatus for mathematics - Google Patents

A kind of Multi-function drawing apparatus for mathematics Download PDF

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Publication number
CN107554148A
CN107554148A CN201710797534.5A CN201710797534A CN107554148A CN 107554148 A CN107554148 A CN 107554148A CN 201710797534 A CN201710797534 A CN 201710797534A CN 107554148 A CN107554148 A CN 107554148A
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CN
China
Prior art keywords
scale plate
chi
semi
minute surface
shaped transparent
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.)
Withdrawn
Application number
CN201710797534.5A
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Chinese (zh)
Inventor
王东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201710797534.5A priority Critical patent/CN107554148A/en
Publication of CN107554148A publication Critical patent/CN107554148A/en
Withdrawn legal-status Critical Current

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Abstract

Of the invention and a kind of Multi-function drawing apparatus for mathematics, including semi-circle shaped transparent scale plate and rotation chi, the semicircle outer rim of described scale plate is carved with angle groove, a variety of geometric figures have been engraved in the semicircle plate face of the scale plate, the linear outer rim of the semi-circle shaped transparent scale plate is provided with chi groove, the circle centre position of the semicircle plate face is provided with semi-cylindrical hill, the rotation chi is fixed in the projection by rotating shaft, the semi-circle shaped transparent scale plate edge has additional amplification minute surface, the amplification minute surface is set up in parallel with semi-circle shaped transparent scale plate edge, and the amplification minute surface is dismountable amplification minute surface, the linear outer rim of the chi groove is provided with the semicylinder hand rest of projection, horizon equipment is provided with the hand rest.It is an advantage of the invention that can convenient measurement plane figure angle, quickly measure horizontal line using the horizon equipment at the top of hand rest, be easy to picture horizontal linear or parallel lines, it is simple in construction, it is easy to use.

Description

A kind of Multi-function drawing apparatus for mathematics
Technical field
The present invention and mathematics teaching aid technical field, more particularly to a kind of Multi-function drawing apparatus for mathematics.
Background technology
Class hour in instructors, in order to more intuitively tell about the content of course, all it is to use some teaching aids, especially enters When row several teaching or mathematical education, it is often required to use ruler, set square and compasses, and it is current, and these teaching aids are independent Body, the different graphic for needing teacher to draw as needed during use takes different teaching aids repeatedly, such as is drawing specific angle When spending, teacher is usually required first to draw one side of angle with ruler, and the angle for being gone out needs using angulation tolerance afterwards is made a mark, Ruler is recycled to complete mapping, complex steps, operation inconvenience afterwards, while existing drawing tool does not possess measurement function, no The angle of energy measurement pattern, existing teaching aid use is extremely inconvenient in a word.
The content of the invention
The invention aims to overcome the deficiencies in the prior art, there is provided a kind of Multi-function drawing apparatus for mathematics.
The present invention is to be achieved through the following technical solutions:
A kind of Multi-function drawing apparatus for mathematics, including semi-circle shaped transparent scale plate and rotation chi, the semicircle of described scale plate Outer rim is carved with angle groove, and a variety of geometric figures have been engraved in the semicircle plate face of the scale plate, and the semi-circle shaped transparent is carved The linear outer rim of degree plate is provided with chi groove, and the circle centre position of the semicircle plate face is provided with semi-cylindrical hill, the rotation chi It is fixed on by rotating shaft in the projection, the semi-circle shaped transparent scale plate edge has additional amplification minute surface, the amplification minute surface Be set up in parallel with semi-circle shaped transparent scale plate edge, and the amplification minute surface is dismountable amplification minute surface, the chi groove it is straight Linear outer rim is provided with the semicylinder hand rest of projection, and horizon equipment is provided with the hand rest.
Further, the rotation chi includes shrinkage-rule, the shrinkage-rule and rotation chi socket.
Further, in addition to ruler, the ruler card are put in the chi groove.
Compared with prior art, the beneficial effects of the invention are as follows:Can convenient measurement plane figure using the plotter The angle of shape, required angle can also be easily drawn, be provided conveniently for mathematical education, and utilize the level at the top of hand rest Device quickly measures horizontal line, is easy to picture horizontal linear or parallel lines, simple in construction, easy to use.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the use state figure of the present invention.
In figure:1st, scale plate;2nd, chi groove;3rd, plate face;4th, it is raised;5th, rotating shaft;6th, chi is revolved;7th, shrinkage-rule;8th, geometric graph Shape;9th, hand rest;10th, horizon equipment;11st, ruler.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.
Refer to a kind of Multi-function drawing apparatus for mathematics shown in Fig. 1 and Fig. 2, including semi-circle shaped transparent scale plate 1 and rotation chi 6, the transparent scale plate 1 can be made of plastics, and the semicircle outer rim of scale plate 1 is carved with angle groove, the semicircle of scale plate 1 A variety of geometric figures 8 are engraved in plate face 3, the geometric figure engraved in Fig. 1 includes equilateral triangle, circle and square, described The linear outer rim of semi-circle shaped transparent scale plate 1 is provided with chi groove 2, and the circle centre position of the semicircle plate face 3 is provided with semicircle Projection 4, the rotation chi 6 are fixed on the semi-cylindrical hill 4 by rotating shaft 5;The rotation chi 6 includes shrinkage-rule 7, shrinkage-rule 7 and Rotation chi 6 is socketed, so that shrinkage-rule 7 can stretch out from rotation chi 6;The edge of semi-circle shaped transparent scale plate 1, which has additional, to be put Large mirror, the amplification minute surface are set up in parallel with semi-circle shaped transparent scale plate edge, and the amplification minute surface is removably to put Large mirror, the linear outer rim of the chi groove 2 are provided with the semicylinder hand rest 9 of projection, horizon equipment are provided with the hand rest 9 10, quickly measure horizontal line using the horizon equipment 10 at the top of hand rest 9.
In use, in order to draw the angle of needs, ruler 11 can be blocked and be put in chi groove 2, rotation rotation chi 6 to angle institute At corresponding scale, so rotation chi 6, ruler 11 just constitute the angle of needs, are sketched the contours just along rotation chi 6 and ruler 9 by chalk The angle that can be needed;Further, shrinkage-rule 7 can then be stretched from rotation chi 6 to draw the longer angle of the length of side Go out, so as to extend the length of rotation chi 6, be easy to draw the angle of the larger length of side, can when without using shrinkage-rule 7 or ruler 11 Ruler 11 is removed so that shrinkage-rule 7 is withdrawn in rotation chi 6, so as to reduce the volume of teaching aid, is easy to deposit.
Can be such as a certain for what is drawn on blackboard with the angle of measurement plane figure by the mathematics plotter of the present invention Angle, the linear outer rim of scale plate 1 can be alignd with one side of angle, rotation rotation chi 6 will revolve chi 6 and the another side of angle Alignment, then the reading that the angle groove indicated by chi 6 is the angle is revolved, can easily be drawn by the geometric figure engraved Conventional geometric figure, convenient teaching.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.

Claims (3)

  1. A kind of 1. Multi-function drawing apparatus for mathematics, it is characterised in that:It is described including semi-circle shaped transparent scale plate (1) and rotation chi (6) The semicircle outer rim of scale plate (1) is carved with angle groove, has been engraved in the semicircle plate face (3) of the scale plate (1) a variety of several What figure (8), the linear outer rim of the semi-circle shaped transparent scale plate (1) is provided with chi groove (2), in the semicircle plate face (3) circle centre position is provided with semi-cylindrical hill (4), and the rotation chi (6) is fixed on raised (4) by rotating shaft (5), described Semi-circle shaped transparent scale plate (1) edge has additional amplification minute surface, and the amplification minute surface and semi-circle shaped transparent scale plate (1) edge are simultaneously Row are set, and the amplification minute surface is dismountable amplification minute surface, the chi groove) the linear outer rim of (2) is provided with projection Semicylinder hand rest (9), horizon equipment (10) is provided with the hand rest (9).
  2. A kind of 2. Multi-function drawing apparatus for mathematics according to claim 1, it is characterised in that:The rotation chi (6) includes flexible Chi (7), the shrinkage-rule (7) are socketed with rotation chi (6).
  3. A kind of 3. Multi-function drawing apparatus for mathematics according to claim 1, it is characterised in that:Also include ruler (11), it is described Ruler (11) card is put in the chi groove (2).
CN201710797534.5A 2017-09-06 2017-09-06 A kind of Multi-function drawing apparatus for mathematics Withdrawn CN107554148A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710797534.5A CN107554148A (en) 2017-09-06 2017-09-06 A kind of Multi-function drawing apparatus for mathematics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710797534.5A CN107554148A (en) 2017-09-06 2017-09-06 A kind of Multi-function drawing apparatus for mathematics

Publications (1)

Publication Number Publication Date
CN107554148A true CN107554148A (en) 2018-01-09

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710797534.5A Withdrawn CN107554148A (en) 2017-09-06 2017-09-06 A kind of Multi-function drawing apparatus for mathematics

Country Status (1)

Country Link
CN (1) CN107554148A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108332777A (en) * 2018-01-31 2018-07-27 北京航天控制仪器研究所 A kind of guard method of the fiber-optic grating sensor of composite implant material and tooling

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108332777A (en) * 2018-01-31 2018-07-27 北京航天控制仪器研究所 A kind of guard method of the fiber-optic grating sensor of composite implant material and tooling
CN108332777B (en) * 2018-01-31 2020-07-14 北京航天控制仪器研究所 Protection method and tool for fiber grating sensor implanted with composite material

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WW01 Invention patent application withdrawn after publication

Application publication date: 20180109

WW01 Invention patent application withdrawn after publication