CN2292684Y

CN2292684Y - Drawing templet for middle school's physics and chemistry

Info

Publication number: CN2292684Y
Application number: CN 97211263
Authority: CN
Inventors: 郑明泉; 范风银
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-03-14
Filing date: 1997-03-14
Publication date: 1998-09-30
Anticipated expiration: 2007-03-14

Abstract

The utility model relates to a drawing instrument for physics and chemistry in a middle school, belonging to a teaching and learning drawing auxiliary tool for the physics and the chemistry in a middle school. The upper side of a straight ruler is connected with a panel, and both sides of the straight ruler are carved with graduations; the upper side of the panel is carved with degrees, is also provided with a round hole, a convex lens, basic geometric figures of a rectangle and a rhombus and is marked with a drawing auxiliary line. The utility model solves the problem that students and teacher in the middle school have the difficulty drawing in the teaching and the learning of the physics and the chemistry, can simply, accurately and quickly draw various figures of a circle, a flask, a gas collecting bottle, a lenses, etc., and ray and has the advantages of simple structure, beauty, and practicality.

Description

Middle school physics and chemistry plotter

The utility model relates to a kind of middle school physics and chemistry plotter, belongs to the aid of junior physics, the mapping of chemical learning aid.

At present, middle school physics and chemistry teacher's teaching plate figure and student's mapping do not have special-purpose apparatus, the combination of ruler, set square, half garden instrument is still adopted in mapping, the figure that does is lack of standardization, particularly when these conventional instrumentation diagram such as picture circle, flask, alcolhol burner, gas bottle, lens, feels at a loss what to do, teacher's plate figure is a freehand drawing, the handy compasses of student etc. so not only use trouble, and it is also very slow to map.

The purpose of this utility model is that a kind of middle school physics and chemistry plotter will be provided, and basic geometric figure and line that it can utilize this device to go up design are accurately drawn some schematic diagrames such as circle, flask, alcolhol burner, gas bottle, lens.

The purpose of this utility model is achieved in that the panel that connects a semicircle on ruler.The ruler tow sides are carved with scale, and the front minimum scale value is 1 millimeter or 1 centimetre, and the reverse side minimum scale value is in 10 times of its respective value.On semicircle panel, be carved with the number of degrees along its round edge symmetry, this value scope is 0--90 °, convex lens have also been hollowed out on one side, another side has hollowed out a little rectangle and little rhombus, and the middle and upper part has hollowed out a big hole, has dug a small sircle hole under it, at big hole round edge bilateral symmetry mark underlined some P, Q, it marks O up and down ₁, O ₂With O on the small sircle hole ₃, O ₄And O on the ruler ₅Gauge point is on same center line, the small sircle hole both sides get out index aperture C, E, G and D, F, H symmetry, cross this hole and mark the boost line of promising picture as straight line, this line comprises that AC straight line and BD straight line extend at A, the B of big hole both sides panel point and meets at O on the small sircle hole ₄Point, its angle are 60 °, and small sircle hole both sides straight line EC is vertically parallel with FD, and its upper end even intersects at O in the great circle hole deviation ₁Point, straight line CMGO ₅With straight line DNHO ₅Cross M on the small sircle hole, N respectively at 2 and meet at ruler O ₅Point, and link ME, EG and NF, FH straight line, small sircle hole top L ₁, L ₂Two straight lines vertically are parallel to straight line O ₂O ₃Link to each other with big hole.

Advantage of the present utility model: can make teacher, student in religion, when learning physical chemistry, simple and direct, accurate, draw multiple figure and rays such as circle, flask, alcolhol burner, gas bottle, lens fast.It is simple in structure, and is both artistic and practical.

Below with reference to accompanying drawing the utility model is described in detail.

Fig. 1 is the utility model front view.

Fig. 2 is the utility model reverse view.

Longevity is gone up the panel (2) that connects a semicircle according to Fig. 1-2 at ruler (1), and scale (5) is carved with on ruler (1) two sides, and its front minimum scale value is 1 millimeter or 1 centimetre, and the reverse side minimum scale value is respectively in 10 times of its respective value.Its round edge symmetry is carved with the number of degrees (5) in semicircular panel (2) upper edge, this number of degrees value range is 0--90 °, convex lens (7) have also been hollowed out on one side, another side has hollowed out a little rectangle (4) and little rhombus (3), little rectangle (4) is positioned at little rhombus (3) top, and the middle and upper part has hollowed out a big hole (6), has dug a small sircle hole (9) under it, at big hole (6) round edge bilateral symmetry mark underlined some P, Q, the O that it also marks up and down ₁, O ₂Go up O with small sircle hole (9) ₃, O ₄And ruler (1) is gone up O ₅Gauge point is on same center line, small sircle hole (9) both sides get out index aperture (8) C, E, G and D, F, H hole symmetry, cross this hole and mark the boost line (10) of promising picture as straight line, this line includes AC straight line and BD straight line and extends at big hole (6) both sides panel A, B point and meet at small sircle hole (9) and go up O ₄Point, its angle are 60 °, and small sircle hole (9) both sides straight line EC is vertically parallel with FD, and its upper end and big hole (6) tiltedly connect and intersect at O ₁Point, straight line CMGO ₅With straight line DNHO ₅Upward 2 of M, N meet at ruler (1) O to cross small sircle hole (9) respectively ₅Point, and link ME, EG and NF, FH straight line, small sircle hole (9) top L ₁, L ₂Two straight lines vertically are parallel to straight line O ₂O ₃Link to each other with big hole (6).

Use the utility model method:

1, ruler (1) is used for surveying object length and draws straight line.

2, the last symmetry of semicircle panel (2) indicates the number of degrees (5) and can draw angle of reflection and incidence angle.

3, last two circles of semicircle panel (2) are to design for drawing assembly pulley, and wherein big hole (6) can be drawn the schematic diagram of movable and fixed pulley schematic diagram and wooden barrel, round log etc.Small sircle hole (9) can be drawn the component symbol, as circle of bulb, ammeter etc.

4, the schematic diagram of concave, convex face mirror and concavees lens is drawn in the hole of convex lens (7).

5, resistance and little rhombus can be drawn in the hole of little rectangle (4) and little rhombus (3).

6, O ₁, O ₂, O ₃, O ₄, O ₅, P, Q, M, N, A, the B gauge point notes point of marking of can drawing.Straight line EC and the vertical parallel index path of drawing of FD, directional light can converge at O ₁Point also can diverge to CA and DB straight line, and the reverse extending line of divergent rays intersects at O ₄

7, along boost line (10), use O ₅The HFNMEG line encloses the picture alcolhol burner; Enclose the picture gas bottle with the HFDCEG line; With big hole (6) and straight line L ₁, L ₂Line encloses the picture flask; With P, Q, O ₂The gauge point line encloses the picture funnel.

Claims

1, a kind of middle school physics and chemistry plotter of forming by ruler (1), panel (2), it is characterized in that going up connection panel (2) at ruler (1), scale (11) is carved with on ruler (1) two sides, be carved with the number of degrees (5) at panel (2) edge, Yi Bian hollowed out convex lens (7), another side has hollowed out little rectangle (4) and little rhombus (3), a big hole (6) has been dug in the middle and upper part, dug a small sircle hole (9) under it, big hole (6) round edge bilateral symmetry mark P, Q, the O that it marks up and down at underlined ₁, O ₂Go up O with small sircle hole (9) ₃, O ₄And ruler (1) is gone up O ₅Gauge point is on same center line, small sircle hole (9) both sides get out index aperture (8) C, E, G and D, F, H hole symmetry, cross this hole and mark the boost line (10) of promising picture as straight line, this line comprises that AC straight line and BD straight line extend at big hole (6) both sides panel A, B point and meets at small sircle hole (9) and go up O ₄Point, small sircle hole (9) both sides have straight line EC vertically parallel with FD, and its upper end and big hole (6) tiltedly connect and intersect at O ₁Point, straight line CMGO ₅With straight line DNHO ₅Upward 2 of M, N meet at ruler (1) O to cross small sircle hole (9) respectively ₅Point, and link ME, EG and NF, FH straight line, small sircle hole (9) top L ₁, L ₂Two straight lines vertically are parallel to straight line O ₂O ₃Link to each other with big hole (6).

2, middle school according to claim 1 physics and chemistry plotter is characterized in that ruler (1) front minimum scale value is 1 millimeter or 1 centimetre, and the reverse side minimum scale value is respectively in 10 times of its respective value.

3, physics and chemistry plotter according to claim 1 is characterized in that panel (2) is half garden shape, is carved with the number of degrees (5) along its round edge symmetry, and this value scope is 0--90 °.

4, according to the described middle school of claim 1 physics and chemistry plotter, the AC straight line of the boost line (10) that it is characterized in that drawing and BD straight line intersect small sircle hole (9) and go up O ₄The angle of point is 60 °.