CN2129694Y - multifunction plotter - Google Patents

Abstract

A multifunctional plotter is composed of a scriber, an index plate and a backing plate. The dividing plate is a circular frame body with 360-degree scales on the dividing plate, one end of the backup plate is concavely provided with an arc-shaped edge corresponding to the excircle radian of the dividing plate, and the dividing plate is abutted against the arc-shaped edge. The inner circle of the dividing plate is symmetrically connected with the arched plate surface, the string end of the dividing plate is provided with scales, the outside of the string end is provided with a slide rail, and a scriber with scales can conveniently slide on the slide rail. The utility model discloses rational in infrastructure simple, the low price, convenient to carry can conveniently accurately divide the angle with it, draws parallel lines, triangle-shaped, polygon, is the drawing instrument of ideal.

Description

Multifucntion drawing instrument

The utility model belongs to the drawing instrument class.

Student and the common drawing instrument that adopts of general scientific and technical personnel are set square, protractor, compasses and T-square etc. now.Though these drawing instrument prices are low, small and exquisite, can conveniently move, such as drawing 30 °, 60 °, 90 ° angles and single circle easily, have the following disadvantages: when drawing parallel lines, handy two set squares, or a T-square, a set square.With set square or T-square location, then another set square is moved along its limit earlier, parallel lines draw.Big or set square hour not only uses inconveniently when displacement, and can make the depth of parallelism between parallel lines not enough because of the mobile off normal and the error that causes on moving of hand.When drawing polygon or dividing the angle equally, the center line that must draw has earlier been decided central point, then with 0 centring point of protractor, and with required angle another center line that draws, then successively repeatedly, with angle bisection, or the polygon that draws.Easily cause a deviation behind protractor centring point, center line two, three times, cause angle to get inaccuracy, polygon is drawn inaccurately.During with patterns such as compasses picture concentric circles, the tip of compasses fixes on the position that central point is the center of circle repeatedly, causes this enlarged areas, makes the concentric circles decentraction of drawing, and the pattern that draws is inaccurate.

The also employing that has now swing-arm type drawing device as shown in Figure 8.Swing-arm type drawing device 19 locks are established miter square 20, horizon rule 21, so that miter square, horizon rule setting-out with the angle of swing-arm type drawing device 19 settings.When rotating, must aim at equally, exist horizon rule equally, cause the drawn reticule in back to be difficult to aim at intersection point 22, depart from, produce error and produce for several times by the setting-out of center line intersection point by center line intersection point 22 with this instrument graduation angle line.And the slide rail that cooperates usefulness with this instrument need be fixed on the collective drawing, can not at will move, and the instrument price is expensive, and common people can not use.

The purpose of this utility model is the problem at above-mentioned existence, and designs a kind of multi-function drawing instrument, and this apparatus structure is simple, low price, easy to carry, and centring line, central point can make things convenient for and divide the angle exactly equally repeatedly, and parallel lines draw, triangle, polygon.

The purpose of this utility model realizes that in the following manner multi-function drawing instrument is made up of scriber 6, index dial 8, backup plate 10.Index dial 8 is a circle framework.Backup plate 10 bottoms are the plane, and the upper end is arranged with the arc limit 15 of corresponding index dial cylindrical radian, and index dial 8 abuts against in the arc limit of backup plate 10 15 sides.The circle bilateral symmetry is even stretched an arc card 1 in the index dial 8.The string end edge graduation of arc card has displacement number of division 11.Arc card string end is arranged with the slide rail 5 of an adsorbable magnetic outward, slide rail center return-to-zero 2 and 0 ° of angle point 13 on the arc card 1.Index dial 8 periphery branches mark 360 ° of angles.Scriber 6 two ends are established level and are inhaled face 14, and the centre is a chi face 18, and there is scale on chi face 18 both sides.Level suction face 14 bottoms are stretched and are established a vertical sliding surface 9, and vertical sliding surface 9 places slide rail 5.

Structure of the present utility model and function are described in detail in detail with reference to the accompanying drawings.

Fig. 1 the utility model structural representation.

Fig. 2 backup plate structural representation.

Fig. 3 scriber structural representation.

Fig. 4 with the utility model draw parallel lines, the state diagram of beginning at the beginning of the triangle.

Fig. 5 with the utility model draw parallel lines, the user mode figure of triangle.

Fig. 6 divides equally the state diagram of angle of circumference with the utility model.

Fig. 7 draws the user mode figure of regular hexagon with the utility model.

The user mode figure of Fig. 8 swing-arm type drawing device graduation angle.

With reference to Fig. 1, Fig. 2, Fig. 3, the circle bilateral symmetry is even stretched an arc card 1 in the index dial 8, and arc card string end is arranged with slide rail 5 outward one, and slide rail 5 tightens the closely connected sheet metal 4 of establishing an adsorbable magnetic.The central authorities of chi face 18 are pressure holding protuberance 7 in the middle of the scriber 6, and the pressure holding protuberance extends level and inhales face 14, below absorption one magnetic piece 17.Magnetic piece is inhaled on sheet metal 4, so that scriber can be adsorbed on the slide rail 5, and the contact between the reinforcement, and can slide along slide rail easily.Level is inhaled face 14 end faces and is flushed in arc card 1.The end face that level is inhaled face 14 is marked with displacement index 3, points to the displacement number of division 11 on the arc card, to express the foundation of scriber 6 shift in alignment number of divisions 11.The total length of scriber equals the length of slide rail 5.Backup plate 10 is divided into metal derby 16, withstands index dial 8.

Arrow up and down in the middle of the backup plate 10 is for fixed point index 12, with this calibration benchmark as index dial 8.Return-to-zero 2 on the arc card 1 is the center basic point of displacement number of division 11.

With reference to Fig. 4, when using the utility model, earlier with 0 ° on the index dial 8 fixed point index of locating to aim in the middle of the backup plate 10 12, then along chi face 18 line that draws.Treat line drawing back well: (1) scriber that moves right, this moment the scriber termination vertical sliding surface 17 by touching slide rail 5 sides, make the scriber stably translational, wait to move on among the figure after the desired location shown in the dotted line, along can the draw parallel lines of last line of chi face.(2) index dial is counterclockwise rotated 90 °, cause scriber to be in the position shown in the solid line among the figure, along chi face 18 line that draws, promptly form 90 ° of angles between this line and preceding article line again.

With reference to Fig. 5, the method for chatting according to the front can draw as shown in FIG. several parallel lines and triangle.

With reference to Fig. 6, when angle of circumference being divided into 60 ° with the utility model, earlier with 0 ° on the index dial 8 fixed point index 12 of locating to aim on the backup plate 10, along chi face 18 line that draws, then index dial is rotated in a clockwise direction 60 °, along the chi face second line that draws, rotate 60 ° again, make index dial be in position shown in the solid line among the figure, along chi face the 3rd line that draw, these three lines are about to angle of circumference and are divided into 60 ° again.

With reference to Fig. 7, when drawing regular hexagon, by the method shown in Figure 6 limit of drawing earlier, all the other five limits of drawing successively again with the utility model.

The utility model is simple and reasonable, low price, easy to carry, if parallel mobile scriber and/or rotate index dial can make things convenient for divide the angle exactly equally, the parallel lines that draw, triangle, polygon.Be student, and science and technology, drawing instrument that project engineering personnel are desirable.

Claims (3)

1. A multifunctional plotter, characterized in that it consists of a line drawing device 6, an indexing plate 8, and a support plate 10. The index plate 8 is a circular frame, and the bottom end of the support plate 10 is flat, and the upper end is concavely provided with corresponding points. The arc edge 15 of the outer arc of the dial, the index dial 8 leans against the arc side of the backing plate 10, the inner circle of the index dial 8 is symmetrically extended on both sides, and a bow-shaped disc surface 1 is extended, and the chord edge of the bow-shaped disc surface is divided There are 11 shifting scales, and a slide rail 5 is recessed outside the chord end of the bow-shaped disk surface. The center of the slide rail is facing the zero return point 2 and the 0° angle point 13 on the bow-shaped disk surface. Horizontal suction surface 14 is established at device 6 two ends, and the middle is ruler surface 18, and scale surface 18 both sides have scale, and horizontal suction surface 14 bottoms stretches and establishes a vertical sliding surface 9, and vertical sliding surface 9 places slide rail. 2. The plotter according to claim 1, characterized in that the center of the middle ruler surface 18 of the line drawing device 6 is a pressing convex part 7, and the pressing convex part extends out of the horizontal suction surface 14, and a magnetic sheet 17 is adsorbed below, The magnetic sheet 17 is sucked on the magnetically absorbable metal sheet 4 attached to the slide rail 5 . 3. The plotter according to claim 1, 2, characterized in that the total length of the line drawing device is equal to the length of the slide rail 5.

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