CN2093757U - Multi-functional ruler for study - Google Patents

Abstract

The utility model relates to a multifunctional painting rule for learning, which not only has the straight line drawing function and the angle measuring efficiency, but also can draw up circles with optional diameters and circular arcs with optional angles within limits. The multifunctional painting rule for learning is characterized in that the multifunctional painting rule for learning is composed of a main ruler and an auxiliary ruler which are movably matched; the main ruler is marked with the length calibrations; one side of the main ruler is provided with the fitting hole of the auxiliary ruler; the external side of the fitting hole is provided with a cross coordinate; one side of the auxiliary ruler is provided with an angle meter whose degree is 0-90; a vernier is covered on the auxiliary ruler; the vernier is provided with a fiducial line corresponding to the graduation of the main ruler and a pen point plugging hole for drawing circles and circular arcs; the fitting holes is corresponding to the center of circle; the position of the rotary edge of the angle meter can read the degree of the circular arc according to the cross coordinate.

Description

Multi-functional ruler for study

The utility model relates to a kind of study article, is the drawing article that a kind of ruler, protractor, three kinds of functions of compasses are one specifically.

Drawing article has ruler, protractor, compasses in study at present, but the ruler public affairs can be drawn straight line, the angulation product can only be in order to the tolerance angle, compasses are drawn circle merely, and the pin of compasses is that sharp-pointed needle point is formed, to the easy prick skin of user, when compasses are drawn quantitative diameter of a circle simultaneously, scale on two inaccurate rulers of pin amount of compasses, the circular arc at any angle also can't draw.

The purpose of this utility model provides the usefulness of a kind of function that had both possessed the picture straight line and tolerance angle, and the circle of the arbitrary diameter in the certain-length scope and a kind of multifunctional learning chi of circular arc at any angle can draw again simultaneously.

For finishing the technical scheme that above-mentioned purpose is taked: whole is divided into main scale and secondary chi two parts with chi, on the main scale, following two ends indicate scale, the hole that cooperates with secondary chi is established in lower end on one side, establish in order to demarcate the cross coordinate of angle in the outside, hole, secondary chi of the outstanding fixed block of determining secondary chi horizontal level and the same length of main scale are established in the another side lower end of main scale, prolate shape does not have the ruler of scale, vernier is set on the ruler, the lower-left end of vernier is established slotting nib hole, use in order to draw circle and circular arc, and upper right side is established and secondary chi fixed screw, the benchmark graticule of main scale scale alignment is established in the screw top, one side bidding of secondary chi has 90 ° of scales that protractor is arranged, and secondary chi is established the hole of matching with main scale.

The utility model embodiment is described in detail in conjunction with the accompanying drawings.

Fig. 1 is the main scale schematic diagram;

Fig. 2 is secondary chi schematic diagram;

The schematic diagram that Fig. 3 cooperatively interacts for major and minor chi.

According to shown in Figure 3, the utility model is made up of main scale 1 and secondary chi 6 two parts, main scale 1 as shown in Figure 1, upper/lower terminal indicates scale 2, the hole 4 of matching with secondary chi is established in the lower end, one side of main scale 1, establish in order to demarcate the cross coordinate 5 of angle in 4 outsides, hole, and the outstanding fixed block 3 of determining secondary chi horizontal level is established in the another side lower end of main scale 1.Secondary chi 6 as shown in Figure 2, there is not the ruler of scale with main scale 1 same length elongated shape, flat, vernier 9 is set on the ruler, secondary chi 6 two ends are provided with inside groove, vernier 9 is placed in the groove, can be free to slide, the lower-left end of vernier 9 is established and is inserted nib hole 10, bottom righthand side is established and the fixing fixed screw 8 of secondary chi, the benchmark graticule 11 that aligns with main scale scale 2 is established in the top of screw 8, the protractor 7 that one side bidding of secondary chi 6 has 0～90 degree scale transparent material to make, and establish the hole 4 of matching with main scale 1, for movingly, above-mentioned mating holes 4 is also made the usefulness in the center of circle for the picture bowlder between the major and minor chi.

The utility model can be made ruler and use, secondary chi 6 turns to the outstanding fixed block 3 of the horizontal level of main scale 1, determine that promptly secondary chi 6 is a horizontal level, benchmark graticule 11 on the vernier 9 moves on to the alignment of main scale 1 size scale line, then be the length of radius, mating holes 4 is the center of circle, nib is inserted in the hole 10 of vernier 9, drive secondary chi 6, rotate around the center of circle.The circle of required radius can draw.And the angle that secondary chi turned over can be read by the position that the relative cross coordinate of protractor turns over, and this reading is that the circular arc number of degrees, the protractor 7 at any angle still can be surveyed and drawn out different angles separately.

Claims (1)

1, a kind of multifunctional learning chi that is used for picture straight line, circle, circular arc and tolerance angle, form by main scale, scale and protractor, it is characterized in that forming by main scale 1 and secondary chi 6 two parts, a. main scale 1 is upper and lower, two ends indicate scale 2, the hole 4 of matching with secondary chi 6 is established in the lower end, one side of main scale 1, and establish in order to demarcate the cross coordinate 5 of angle in 4 outsides, hole, and the outstanding fixed block 3 of determining secondary chi horizontal level is established in the another side lower end of main scale 1; B. secondary chi 6 and main scale 1 same length elongated shape, flat do not have the ruler of scale, vernier 9 is set on the ruler, the lower-left end of vernier 9 is established and is inserted nib hole 10, upper right side is established the fixed screw of fixing with secondary chi 68, the benchmark graticule 11 that aligns with main scale scale 2 is established in the top of screw 8, one side bidding of secondary chi 6 has the protractor 7 of 0～90 degree scale, and establishes and main scale 1 movingly hole 4 mutually.

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