CN201728985U

CN201728985U - Angle drawing instrument

Info

Publication number: CN201728985U
Application number: CN2010202536059U
Authority: CN
Inventors: 关昊
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-07-12
Filing date: 2010-07-12
Publication date: 2011-02-02
Anticipated expiration: 2020-07-12

Abstract

The utility model discloses an angle drawing instrument which includes two telescopic rulers with equal length and a protractor; the central parts at one ends of the two rulers are connected with a shaft at the circular center of the protractor; moreover, a plurality of through holes are arranged in the central line positions of the two rulers in equal intervals. When drawing an angle, one side of the angle can be drawn by using one ruler; then the protractor is used to measure the degree of the angle; and the other side of the angle is drawn by using another ruler, thus being capable of realizing the function of drawing angles; when drawing a circle, two pencils can be respectively inserted into the through holes of the two rulers; the pencil point of one pencil can be used as a fixed pointed and the body of another pencil is rotated, thus being capable of drawing the circle with a known radius; moreover, the rulers are also convenient for student to draw straight lines. The angle drawing instrument has the advantages of simple structure and convenient use, and brings more convenience for the students to use.

Description

Paint the angle instrument

Technical field the utility model relates to a kind of stationery, and is that especially a kind of student of convenience uses, both made things convenient for picture circle, and what make things convenient for the picture angle again paints the angle instrument.

How much class hours on the background technology students, the angle of drawing straight line, circle and the appointment number of degrees is one of things of often doing, a kind ofly both can not make things convenient for the picture angle but have as yet at present, can make things convenient for the picture circle again, and can draw the stationery of straight line, can not satisfy the use needs of students.

What the summary of the invention the purpose of this utility model was to provide a kind of and has ruler concurrently, draws the circle function paints the angle instrument, to satisfy the use needs of students.

The utility model comprises two isometric Expansion rulers and protractor, and the center position of two rulers, one end is connected with the circle centre position axle of protractor, and equidistantly is provided with a plurality of open-works at the midline position place of two rulers.

After adopting said structure, when drawing the angle, can utilize the draw one side at angle of a ruler earlier, after the utilization hornwork has been measured the number of degrees at angle then, utilize another ruler another side at angle that draws again, can realize the function at picture angle; Draw bowlder, in the time of two pens can being inserted into the open-work of two rulers respectively, as fixing point, rotate another handwriting, the circle of the known radius of can drawing with the nib of a pen; Ruler also makes things convenient for students to draw straight line.

The utility model has the advantages that: simple in structure, easy to use, bring greater convenience for the use of students.

Description of drawings Fig. 1 is a schematic perspective view of the present utility model.

The specific embodiment is in the schematic perspective view of painting the angle instrument shown in Figure 1, comprise two isometric Expansion rulers 1 and protractor 2, the center position of two rulers, one end is connected with the circle centre position axle of protractor, and equidistantly is provided with a plurality of open-works 3 at the midline position place of two rulers.When drawing the angle, can utilize the draw one side at angle of a ruler earlier, the utilization hornwork has been measured the number of degrees at angle again, gets final product with the draw another side at angle of another ruler; Draw bowlder, can be according to drawn radius of circle, the nib of two pens is inserted into respectively in the two ruler open-works, with the nib of a pen as fixing point, rotation another pen, the circle of the known radius of can drawing.

Claims

1. paint the angle instrument for one kind, comprise two isometric Expansion rulers and protractor, it is characterized in that: the center position of two rulers, one end is connected with the circle centre position axle of protractor, and equidistantly is provided with a plurality of open-works at the midline position place of two rulers.