CN2286679Y

CN2286679Y - Multi-purpose drawing board

Info

Publication number: CN2286679Y
Application number: CN 96243176
Authority: CN
Inventors: 周路定
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-11-22
Filing date: 1996-11-22
Publication date: 1998-07-29
Anticipated expiration: 2006-11-22

Abstract

The utility model relates to a multi-purpose drawing board, which is a novel tool provided with a plurality of drawing and measurement functions. The utility model is composed of a main board and a relative accessory and can be provide with the functions of measurement tools such as a ruler, an inside caliper, an outside caliper, a ball diameter ruler, compasses, an ellipsograph, plane radian compasses, a plane arc-center instrument, a plane radian instrument, a spherical arc length instrument, a grading instrument, a special drawing board, a right-triangle, a curve board, a gold triangle, a magnifier, reducing lens, a triple prism, a compass, a protractor, an opposite vertex protractor, etc. The utility model is a multi-function plotting tool and is suitable for a manager, a technician, a college student, a middle school student and a primary school student to use.

Description

Use chart board more

The utility model is a kind of chart boards of using in the drawing field more.

Existing drawing board all is to constitute by having tolerance scale and the geometric figure that hollows out, has certain specific dedicated functions, protractor for example, certain angle of can only drawing; Set square and various dedicated templates, the figure of the fixed dimension of can only drawing; Compasses can only be drawn circle.Measure or draw circle, arc and the ellipse etc. of any radius as need, just need purchase other multiple special-purpose drawing instruments in addition, not only uneconomical but also inconvenient during use.

The purpose of this utility model provides a kind ofly uses chart board more, and it has the function of multiple measurement, drawing, and is both economical and practical, simple and convenient again.

The purpose of this utility model is achieved in that

Be made up of mainboard 1 and turnbuckle annex 11, lens accessories 26, slide calliper rule annex 39 etc., it is characterized in that: turnbuckle annex 11 is connected on the mainboard 1 by the location card base, and lens accessories 26 and slide calliper rule annex 39 can be connected on the mainboard 1 by minor axis or card base; The last lower limb of mainboard 1 is parallel, and is vertical with the left side, and all mint-mark has length scale 2, and its right is one section curved edge; Mint-mark has three

oblique lines

3,4,5 on mainboard 1, intersect with the top and the left side of mainboard 1 respectively, constitute three right angle trigonometry figures, add the line of two hypotenuse mid points, form four right angled triangles (acute angle is respectively 45 ° and 60 °), two isosceles triangles (drift angle is respectively 120 ° and 60 °) and a right angle gold triangle 5 altogether, the angle of an acute angle of gold triangle is 58 ° 16 ' 57 "; on each leg-of-mutton crucial intersection point next door, dig the geometric figure of being convenient to mark mark; Also mint-mark has two the length scales 6 parallel with the left side of mainboard 1; Mint-mark has a protractor 7 on mainboard 1, and the fan-shaped angle of its arc 8 is 180 ° or 90 °, has three to be marked with from the center of circle radius 17 of 16 distance scale, and the arc 8 of protractor 7 indicates 0 °～180 ° and 90 °～0 °～90 ° two groups of scales; On mainboard 1, dig and be carved with equilateral triangle, square, regular pentagon, regular hexagon, octagon, and be used for design program geometric figure that block diagram uses and electronic engineering symbol 9 etc. of system development and hollow out figure, one have an accurate angle hollow out figure 10, be marked with the diameter of a circle tangent at its linear edge with the both sides, angle; On mainboard 1, dig the center of circle 16 of being carved with protractor 7, the axis hole 19 of inside caliper, the axis hole 20 of outside caliper, the

axis hole

24,25 of lens accessories 26, and mint-mark has the datum line 21 of inside caliper, the datum line 22 of outside caliper, and have wedge angle 23;

Advantage of the present utility model is that it has overcome the deficiency of existing drawing board function singleness, has economical and practical, advantage simply and easily, can realize ruler, inside caliper, outside caliper, sphere diameter chi; Compasses, ellipsograph, plane curvature rule; Plane arc core instrument, plane curvature instrument, sphere arc length gauge, gradiometer; Special-purpose chart board, right angle triangle, curve ruler, gold set square; Magnifying glass, dwindle mirror, prism, compass and protractor, to the function of multiple surveying and mapping tools such as top protractor.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is mainboard 1 and turnbuckle annex 11.

Fig. 2 is a lens accessories 26.

Fig. 3 is a slide calliper rule annex 39.

Fig. 4 is a drawing pen annex 45.

As Fig. 1, turnbuckle annex 11 can be by plural connection card base, be stuck in easily in the locating hole on the mainboard 1, line segment 12 retractilities are less and can continuous bend and can measure, the one end connects clip 13, can be stuck on any scale at mainboard 1 ruler edge 2, and an aperture 14 that can insert drawing pen nib 46, also can slide on line segment 12 is arranged on the line segment 12, dial 15 by turnbuckle annex 11 can tighten up line segment, also can be used as plumb line.

As Fig. 2, one side of lens accessories 26 is printed on length scale 27, have and the tangent diameter of a circle data 28 in angle both sides, mainboard 1 base in its another side mint-mark, the minor axis 29 that has a protractor that can insert mainboard 17 centers of circle 16 to rotate, and mint-mark has a directrix 30 to the top protractor parallel with the edge of lens accessories 26, that its extended line passes through the minor axis center; Circular magnifying glass 31, column magnifying glass 32 are arranged on the lens accessories 26, dwindle mirror 33, prism 34 and compass 35: plural projection minor axis 36,37 is arranged at the one end, insert in the

respective aperture

24,25 on the mainboard 1, make line 33 overlapping or constitute certain angle with the base on mainboard 1 ruler limit 2.

As Fig. 3, slide calliper rule annex 39 is made by transparent or metal material, its outer rim has the curve of continuous variation curvature, have wedge angle 43, a fixing or detachable minor axis 40 is arranged, can insert respectively on the mainboard 1 in inside caliper axis hole 19 or the outside caliper axis hole 20, and can sway, on it mint-mark have indicate in wild card only survey the scale 41,42 of size, when the minor axis 40 of slide calliper rule annex 39 inserted on the mainboards 1 inside caliper axis hole 19, the wedge angle 23 on its wedge angle 43 and the mainboard 1 just constituted two tips of inside caliper.

As Fig. 4, the nib 46 of drawing pen annex 45 can be write, paint, and tail end 47 can articulate turnbuckle 11 line segments 12, has the function of weight.

Claims

1, a kind of chart board of using more, form by mainboard 1 and turnbuckle annex 11, lens accessories 26, slide calliper rule annex 39 etc., it is characterized in that: turnbuckle annex 11 is connected on the mainboard 1 by the location card base, and lens accessories 26 and slide calliper rule annex 39 can be connected on the mainboard 1 by minor axis or card base; The last lower limb of mainboard 1 is parallel, and is vertical with the left side, and all mint-mark has length scale 2, and its right is one section curved edge; Mint-mark has three oblique lines 3,4,5 on mainboard 1, intersect with the top and the left side of mainboard 1 respectively, constitute three right angle trigonometry figures, add the line of two hypotenuse mid points, form four right angled triangles (acute angle is respectively 45 ° and 60 °), two isosceles triangles (drift angle is respectively 120 ° and 60 °) and a right angle gold triangle 5 altogether, the angle of an acute angle of gold triangle is 58 ° 16 ' 57 "; on each leg-of-mutton crucial intersection point next door, dig the geometric figure of being convenient to mark mark; Also mint-mark has two the length scales 6 parallel with the left side of mainboard 1; Mint-mark has a protractor 7 on mainboard 1, and the fan-shaped angle of its arc 8 is 180 ° or 90 °, has three to be marked with from the center of circle radius 17 of 16 distance scale, and the arc 8 of protractor 7 indicates 0 °～180 ° and 90 °～0 °～90 ° two groups of scales; On mainboard 1, dig and be carved with equilateral triangle, square, regular pentagon, regular hexagon, octagon, and be used for design program what figure of youngster that block diagram uses and electronic engineering symbol 9 etc. of system development and hollow out figure, one have an accurate angle hollow out figure 10, be marked with the diameter of a circle tangent at its linear edge with the both sides, angle; On mainboard 1, dig the center of circle 16 of being carved with protractor 7, only axis hole 19 of interior card, the axis hole 20 of outside caliper, the axis hole 24,25 of lens accessories 26, and mint-mark has the datum line 21 of inside caliper, the datum line 22 of outside caliper, and have wedge angle 23;

2, according to the right 1 described chart boards of using more, it is characterized in that: turnbuckle annex 11 can be by plural connection card base, be stuck in easily in the locating hole on the mainboard 1, line segment 12 retractilities are less and can continuous bend and can measure, the one end connects clip 13, can be stuck on any scale at mainboard 1 ruler edge 2, an aperture 14 that can insert drawing pen nib 46, also can slide on line segment 12 is arranged on the line segment 12, dial 15 by turnbuckle annex 11 can tighten up line segment, also can be used as plumb line.

3, according to the right 1 described chart boards of using more, it is characterized in that: one side lens accessories 26 be printed on length scale 27, have and the tangent diameter of a circle data 28 in angle both sides, mainboard 1 base in its another side mint-mark, the minor axis 29 that has a protractor that can insert mainboard 17 centers of circle 16 to rotate, and mint-mark has a directrix 30 to the top protractor parallel with the edge of lens accessories 26, that its extended line passes through the minor axis center; Circular magnifying glass 31, column magnifying glass 32 are arranged on the lens accessories 26, dwindle mirror 33, prism 34 and compass 35; At the one end plural projection minor axis 36,37 is arranged, insert in the respective aperture 24,25 on the mainboard 1, make line 38 overlapping or constitute certain angle with the base on mainboard 1 ruler limit 2.

4, according to the right 1 described chart boards of using more, it is characterized in that: slide calliper rule annex 39 is made by transparent or metal material, its outer rim has the curve of continuous variation curvature, have wedge angle 43, a fixing or detachable minor axis 40 is arranged, can insert respectively on the mainboard 1 in inside caliper axis hole 19 or the outside caliper axis hole 20, and can sway, mint-mark has the scale 41,42 of indicating double caliper actual measurement size on it, when the minor axis 40 of slide calliper rule annex 39 inserted on the mainboards 1 inside caliper axis hole 19, the wedge angle 23 on its wedge angle 43 and the mainboard 1 just constituted two tips of inside caliper.Same principle, when the minor axis 40 of slide calliper rule annex 39 inserted on the mainboards 1 outside caliper axis hole 20, the wedge angle 23 on its wedge angle 43 and the mainboard 1 just constituted two tips of outside caliper.