CN2212510Y

CN2212510Y - Combined plotting instrument

Info

Publication number: CN2212510Y
Application number: CN 94246590
Authority: CN
Inventors: 张廷权; 张英
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-12-08
Filing date: 1994-12-08
Publication date: 1995-11-15
Anticipated expiration: 2004-12-08

Abstract

The utility model discloses a combined plotting instrument, which is composed of a graphometer and a straightedge with scales, wherein, the graphometer and the straightedge with scales are connected through a rotating shaft with locking nuts. The utility model is characterized in that the edge of the straightedge is provided with a vernier scale with a pencil inserting hole; the graphometer can be replaced by a triangular plate with a graphometer. The utility model has the advantages that the utility model has various functions of a graphometer, a triangular plate, a straightedge, a compass, a T-square, etc., and therefore, the use is convenient; a plurality of tools do not need changing in the process of plotting, and therefore, the utility model is convenient to carry.

Description

Combined plotting instrument

The utility model relates to a kind of drawing instrument.

The drawing instrument that uses has graphometer, ruler, set square, compasses etc. at present, and drawing a width of cloth figure needs multiple drawing instrument to be used alternatingly, inconvenience, and particularly when classroom instruction, the teacher carries more inconvenient.

The purpose of this utility model is to provide a kind of energy to substitute the comprehensive plotter of various drawing instruments commonly used with convenient mapping.

The purpose of this utility model is achieved in that and has designed a kind of plotter of being with the ruler of scale to form by the rule and of graphometer by a stage casing, the rule that graphometer is arranged is following, the ruler of band scale is last, the circle centre position of graphometer is connected by rotating shaft with center, ruler one long limit in the plotter, locking nut is arranged in the rotating shaft, vernier is housed on the ruler, and vernier is provided with pen plughole.Plotter is placed drawing, make it deformation, translation or rotation, can do straight line and various angle easily, moving cursor then can be drawn the circular arc and the circle of different radii.

The straight flange of graphometer has scale in the comprehensive plotter of the utility model, but graphometer double as rule uses.In order to reduce the graphometer size so that carry, the rule that graphometer is arranged can be a ruler, and this ruler and graphometer become one, and a long limit of ruler overlaps with the straight flange of graphometer.In order to increase the function of plotter, the end of a ruler is set with the centering draw point, and the end of another ruler is set with the slotting pen cap, and plotter is holded up then becomes good compasses like this.In order to adapt to different mapping needs, it also can be right angle triangle that the rule of graphometer is arranged, and this right angle triangle and graphometer become one, and the hypotenuse of set square overlaps with the straight flange of graphometer.The acute ends of right angle triangle is set with the centering draw point, and an end of ruler is set with the slotting pen cap.There is the drift bolt aperture at the center that is connected with the rotating shaft of the rule of graphometer and ruler.

Actual graphometer, ruler, rule, the set square of having comprised of the comprehensive plotter of the utility model, by moving or rotate its member, but deformation becomes drawing tools such as compasses, angle square, T-square, vertical angles protractor, scale, draw various figures easily and effectively, substitute traditional whole geometric construction instruments.For example ruler and set square make up the picture angle, the mapping of track described point; Ruler, set square and graphometer combination, the angle measurement degree is drawn the angle of the known angle and the length of side; Ruler, set square, graphometer and compasses combination trisection known angle are drawn fan-shaped, fan ring; Rule and vernier combination picture circle, decide radius and finish simultaneously; Ruler and set square are combined into coordinate system, and described point is drawn in solid geometry, analytic geometry.The utility model is as teaching aid, have demo function: comprehensive plotter can deformation become different shape the angle, and can the translation rotation, can produce effect directly perceived the classification at the big or small comparison at the definition at demonstration angle, angle, angle, angle sum of a triangle theorem, during concyclic and all kinds of figures congruent at 4; The ruler of comprehensive plotter can rotate around the center, all can produce directly perceived effect greater than the difference on the 3rd limit, both sides during less than the 3rd limit, tangent line theorem, ellipse, hyperbola, parabola and the correctness at the check track in the leg-of-mutton both sides of demonstration sum.In addition, when making many figures, this plotter itself can determine a little and the position of line, need not boost line; And solve a problem when mapping this plotter can rotate, translation is with the interpolation boost line.Because comprehensive plotter is multiple functional, in various mapping processes, itself just determined the position of point and line, can use axiom, definition, theorem and directly finish figure, need not boost line, thus guaranteed clear and clean and tidy, the accuracy that improved figure of figure.

Embodiment is elaborated to the utility model below in conjunction with accompanying drawing.

Fig. 1 is the structure chart of an embodiment of the utility model.

Fig. 2 is the structure chart of another embodiment of the utility model.

Fig. 3 is the structure chart of the another embodiment of the utility model.

As shown in Figure 1, designed one by the ruler 1 of band scale and the comprehensive plotter that graphometer 4 combines.The circle centre position of graphometer 4 semicircles has a threaded fixed axis, the middle part, one side of ruler 1 has an axle sleeve to be rotationally connected with graphometer 4 by this axle, and graphometer 4 is following, and ruler 1 is last, locking nut 5 is arranged in the rotating shaft, can make ruler 1 and graphometer 4 in arbitrary fixed angle.There is the drift bolt small sircle hole at the center of turning cylinder so that on drawing fixed point location.The vernier 2 of band pen plughole 3 also is housed on ruler 1.

Another embodiment of the present utility model as shown in Figure 2, comprehensive plotter is made of the set square 6 of band graphometer 4 and the ruler 1 of a band scale, the threaded hollow turning cylinder of the circle centre position of one side of the hypotenuse of set square 6 and ruler 1 by being positioned at graphometer 4 semicircles is connected, set square 6 is following, ruler 1 has locking nut 5 last on the turning cylinder.Two right-angle sides of set square 6 are all made outer thin interior thick gradient edge, so that setting-out.An acute ends suit draw point 8 of set square 6, an end suit of ruler 1 is inserted the pen cap 7, is used for cooperating picture round with draw point 8.The other end of ruler 1 is equipped with the vernier 2 of band pen plughole 3.Two right-angle sides of set square 6 also are with scale, and the right-angle side that draw point 8 is housed is an engineer's scale, and another right-angle side is common rule.

As shown in Figure 3, the comprehensive plotter of the utility model also can be formed by connecting by threaded rotating shaft by middle part ruler 9 and another ruler 1 with graphometer 4, and locking nut 5 is arranged in the rotating shaft, and there is the drift bolt hole at the center of rotating shaft.An end that is connected with the ruler 9 of graphometer 4 is set with centering draw point 8, and an end of another ruler 1 is set with inserts the pen cap 7, and the other end has the vernier 2 of band pen plughole 3.

If the comprehensive plotter of the utility model is made large-scale Gong teaching, demonstration usefulness, insert the pen cap and pen plughole and can adorn chalk, be used on blackboard, doing circle and circular arc; If make small-sized Gong student and drawing personnel operation, drawing, insert the pen cap and pen plughole and can adorn pencil or lead for retractable pencil, drawing pen etc.

Claims

1, a kind of plotter, it is characterized in that said plotter is made up of the ruler of the rule of graphometer and a band scale a stage casing, the rule that graphometer is arranged is following, the ruler of band scale is last, the circle centre position of said graphometer is connected by rotating shaft with center, ruler one long limit, locking nut is arranged in the rotating shaft, vernier is housed on the ruler, vernier is provided with pen plughole.

2, plotter according to claim 1 is characterized in that said rule is a right angle triangle, and this right angle triangle and graphometer are one, and the hypotenuse of set square overlaps with the straight flange of graphometer.

3, plotter according to claim 1 is characterized in that said rule is a ruler, and this ruler and graphometer are one, and a long limit of ruler overlaps with the straight flange of graphometer.

4, plotter according to claim 2 is characterized in that the acute ends of said right angle triangle is set with the centering draw point, and an end of ruler is set with the slotting pen cap.

5, plotter according to claim 3 is characterized in that the end of one of said ruler is set with the centering draw point, and the end of another ruler is set with the slotting pen cap.

6,, it is characterized in that there is the drift bolt aperture at the center of said rotating shaft according to claim 1,2,3,4 or 5 described plotters.