CN203739498U - Drawing board device for middle schoolsciences - Google Patents

Abstract

A drawing board device for middle schoolsciences comprises a radius line A, a through hole A, a transparent set square, a magnet ring, an arc diagram, a square, a biconcave lens, a perfect circlediagram, a ladder diagram, a through hole B, a protractor and a sine and cosinewave formdiagram B, wherein the sine and cosinewave formdiagram B is arranged in a position, which is close to the inside, of a right angle of the transparent set square; a sine and cosinewave formdiagram A is arranged on the transparent set square above the sine and cosinewave formdiagram B; the ladder diagram is arranged in a position, which is close to the inside, of a small acute angle of the transparent set square; the through hole B is formed in thesmall acute angle of the transparent set square on the outer side of the ladder diagram; a radius line B is connected onto the through hole B; and a plastic ring is connected with the outer end of the radius line B. The through hole A is formed in a position, which is close to the outer side of the sine and cosinewave formdiagram A, in a large acute angle of the transparent set square,the radius line A is connected onto the through hole A, and the magnet ring is connected with the outer end of the radius line A. The drawing board device is simple in overall structure, convenient to operate and use, good in stability and high in reliability.

Description

A kind of middle school science draughting board device

Technical field

The utility model relates to natural sciences study servicing unit, relates in particular to a kind of middle school science draughting board device.

Background technology

The drawing of carrying out in middle school science teaching process, all the instruments that use mathematics to draw according to prior art, such as ruler, compasses, set square and protractor, in the time of actual middle school science teaching drawing, owing to there is no the special drafting instrument of science teaching, so the speed of drawing is slow, and effect is undesirable, has had influence on the quality of middle school science learning aid.

Utility model content

The purpose of this utility model is, overcomes the deficiencies in the prior art part, and a kind of middle school science draughting board device is provided, and can adapt to the actual needs of middle school science teaching, facilitates the drawing operation of middle school science learning aid.

A kind of middle school science draughting board device described in the utility model, includes radius A, through hole A, transparent triangle, sine and cosine oscillogram A, magnet annulus, camber line figure, square, biconcave lens, plastic circle ring, radius B, positive circle diagram, ladder diagram, through hole B, protractor and sine and cosine oscillogram B.Transparent triangle is the main component of a kind of middle school science draughting board device described in the utility model, on the long limit, right angle of transparent triangle, be provided with scale, in inner position, the right angle of transparent triangle, be provided with sine and cosine oscillogram B, on transparent triangle on sine and cosine oscillogram B, be provided with sine and cosine oscillogram A, in the inner position of the little acute angle of transparent triangle, be provided with ladder diagram, in the little acute angle of transparent triangle in ladder diagram outside, be provided with through hole B, on through hole B, be connected with radius B, the outer end of radius B is connected with plastic circle ring.Position in the large acute angle of the transparent triangle near sine and cosine oscillogram A outside, is provided with through hole A, is connected with radius A on through hole A, and the outer end of radius A is connected with magnet annulus.In the position placed in the middle of transparent triangle, be provided with protractor, on transparent triangle on protractor, be provided with square, to the transparent triangle between sine and cosine oscillogram B, be provided with camber line figure at square and protractor, at protractor to the transparent triangle between ladder diagram, be provided with positive circle diagram, to the transparent triangle between ladder diagram, be provided with biconcave lens at square.The length of radius B is two times of radius A length.In science teaching process, use plastic circle ring, can handled easily, in actual live and work process, the magnet annulus that actionradius line A connects, better concrete needs in adaptation work.

A kind of middle school science draughting board device described in the utility model, overall structure is simple, easy for operation, good stability, reliability is high.Use a kind of middle school science draughting board device described in the utility model, can adapt to the actual needs of middle school science teaching, facilitate the drawing operation of middle school science learning aid.

Brief description of the drawings

Accompanying drawing 1 is the structural representation of a kind of middle school science draughting board device described in the utility model.1-radius A, 2-through hole A, 3-transparent triangle, 4-sine and cosine oscillogram A, 5-magnet annulus, 6-camber line Fig. 7-square, 8-biconcave lens, 9-plastic circle ring, 10-radius B 11-positive circle diagram 12-trapezoidal Figure 13-through hole B 14-protractor 15-sine and cosine oscillogram B.

Detailed description of the invention

Referring now to accompanying drawing 1, be described as follows: a kind of middle school science draughting board device, includes radius A1, through hole A2, transparent triangle 3, sine and cosine oscillogram A4, magnet annulus 5, camber line Fig. 6, square 7, biconcave lens 8, plastic circle ring 9, radius B10, positive circle diagram 11, trapezoidal Figure 12, through hole B13, protractor 14 and sine and cosine oscillogram B15 in conjunction with the embodiments.Transparent triangle 3 is main components of a kind of middle school science draughting board device described in the utility model, on the long limit, right angle of transparent triangle 3, be provided with scale, in inner position, the right angle of transparent triangle 3, be provided with sine and cosine oscillogram B15, on transparent triangle 3 on sine and cosine oscillogram B15, be provided with sine and cosine oscillogram A4, in the inner position of the little acute angle of transparent triangle 3, be provided with trapezoidal Figure 12, in the little acute angle of transparent triangle 3 in trapezoidal Figure 12 outside, be provided with through hole B13, on through hole B13, be connected with radius B10, the outer end of radius B10 is connected with plastic circle ring 9.Position in the large acute angle of the transparent triangle 3 near sine and cosine oscillogram A4 outside, is provided with through hole A2, is connected with radius A1 on through hole A2, and the outer end of radius A1 is connected with magnet annulus 5.In the position placed in the middle of transparent triangle 3, be provided with protractor 14, on transparent triangle 3 on protractor 14, be provided with square 7, square 7 and protractor 14 to the transparent triangle 3 between sine and cosine oscillogram B15, be provided with camber line Fig. 6, at protractor 14 to the transparent triangle 3 between trapezoidal Figure 12, be provided with positive circle diagram 11, on the transparent triangle 3 between square 7 to trapezoidal Figure 12, be provided with biconcave lens 8.The length of radius B10 is two times of radius A1 length.In science teaching process, use plastic circle ring 9, can handled easily, in actual live and work process, the magnet annulus 5 that actionradius line A1 connects, better concrete needs in adaptation work.A kind of middle school science draughting board device described in the utility model, overall structure is simple, easy for operation, good stability, reliability is high.Use a kind of middle school science draughting board device described in the utility model, can adapt to the actual needs of middle school science teaching, facilitate the drawing operation of middle school science learning aid.

Claims (1)

1. a middle school science draughting board device, includes radius A(1), through hole A(2), transparent triangle (3), sine and cosine oscillogram A(4), magnet annulus (5), camber line figure (6), square (7), biconcave lens (8), plastic circle ring (9), radius B(10), positive circle diagram (11), ladder diagram (12), through hole B(13), protractor (14) and sine and cosine oscillogram B(15), transparent triangle (3) is main component, on the long limit, right angle of transparent triangle (3), be provided with scale, it is characterized in that the inner position, right angle at transparent triangle (3), be provided with sine and cosine oscillogram B(15), at sine and cosine oscillogram B(15) above transparent triangle (3) on, be provided with sine and cosine oscillogram A(4), in the inner position of the little acute angle of transparent triangle (3), be provided with ladder diagram (12), in the little acute angle of transparent triangle (3) in ladder diagram (12) outside, be provided with through hole B(13), through hole B(13) on be connected with radius B(10), radius B(10) outer end be connected with plastic circle ring (9), near sine and cosine oscillogram A(4) position in the large acute angle of the transparent triangle (3) in outside, be provided with through hole A(2), through hole A(2) on be connected with radius A(1), radius A(1) outer end be connected with magnet annulus (5), in the position placed in the middle of transparent triangle (3), be provided with protractor (14), on transparent triangle (3) on protractor (14), be provided with square (7), arrive sine and cosine oscillogram B(15 at square (7) and protractor (14)) between transparent triangle (3) on, be provided with camber line figure (6), arrive on the transparent triangle (3) between ladder diagram (12) at protractor (14), be provided with positive circle diagram (11), upper to the transparent triangle (3) between ladder diagram (12) at square (7), be provided with biconcave lens (8).