CN203580444U

CN203580444U - Multifunctional drawing tool

Info

Publication number: CN203580444U
Application number: CN201320713823.XU
Authority: CN
Inventors: 吴金平; 漆晓东
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-11-14
Filing date: 2013-11-14
Publication date: 2014-05-07
Anticipated expiration: 2023-11-14

Abstract

The utility model relates to a drawing tool, in particular to a multifunctional drawing tool which is capable of drawing straight lines, circles, angles and triangles. The technical scheme includes that the multifunctional drawing tool comprises a main ruler and a movable ruler, a sliding groove and a datum line are arranged on the main ruler, cylinders are mounted at two ends of the sliding groove, one end of the movable ruler is round, 360-degree angle scale marks are arranged on the movable ruler, cylinders are mounted below two ends of the movable ruler, and the movable ruler is buckled on the cylinders of the main ruler through the cylinder at the round end. The multifunctional drawing tool is applied to drawing and teaching and has the advantages of having functions of a straight ruler, a set square, a protractor and compasses and being multipurpose.

Description

Multifunctional draughting instrument

Technical field

The utility model relates to a kind of drafting instrument.

Background technology

Existing drafting instrument such as ruler, compasses, protractor, set square etc. are traditional drafting instruments.The weak point of prior art is, it uses function singleness, with ruler, can only draw straight line, with compasses, can only draw circle, with protractor can only measuring angle, with set square, can only draw triangle.When drawing comprehensive Graphics, need to use multiple types of tools, to designer, make troubles.

Summary of the invention

Technical problem to be solved is, provides a kind of and can draw straight line, not only can draw circle, can draw angle not only but also can draw leg-of-mutton Multifunctional draughting instrument.

Solve the technical scheme of its technical problem, comprise main scale and two adjustable rules; Main scale is strip chi, opens a chute on the upper surface of main scale, has a datum line on the center line of chute, and respectively there is length graduation mark the both sides of main scale, at the two ends of the chute of main scale, respectively fills a cylinder; The width of adjustable rule equals half of main scale width, one end of adjustable rule equals the round nose of main scale width for its diameter, on the upper surface of this round nose, there are 360 degree angle index lines, on the lower surface at adjustable rule two ends, respectively fill the cylinder that its diameter is slightly less than chute width, the cylindrical center of adjustable rule round nose and the angle index Xian center on its upper surface are harmonious, two adjustable rules are fastened on a cylinder of main scale with the cylinder of round nose, can separate if desired, there is length graduation mark in the outside of the upper surface of adjustable rule.

Adjustable rule is rotated with a certain scale of the angle index line on it and aims at the datum line on main scale, can draw its corresponding angle line.

Adjustable rule, around main scale cylinder central rotation, can be drawn to circular arc and circular pattern.

The cylinder of the round nose of two adjustable rules is moved on in main scale chute, with a certain scale of each adjustable rule upper angle graduation mark, aim at datum line on main scale respectively, can draw the triangle corresponding with its angle.

The cylinder of the round nose of two adjustable rules is moved on in main scale chute, with the same angle index line on each adjustable rule, aim at the datum line on main scale respectively, can draw two parallel lines.

Beneficial effect

The utility model is applied on blackboard, draw instructional map in drawing and teaching.Beneficial effect is the function with ruler, set square, protractor and compasses, and one-object-many-purposes is easy to use, is suitable for promoting the use of in drawing and teaching.

Accompanying drawing explanation

Fig. 1 is structure chart of the present utility model.In Fig. 1,1 is main scale, and 2 is adjustable rule, and 3 is chute, and 4 is datum line, and 5 is cylinder, and 6 is 360 degree angle index lines.

The specific embodiment

The specific embodiment is as follows: comprise main scale 1 and two adjustable rules 2, main scale 1 is strip chi, opens a chute 3 on the upper surface of main scale 1, has a datum line 4 on the center line of chute, and respectively there is length graduation mark the both sides of main scale 1, at the two ends of the chute 3 of main scale 1, respectively fills a cylinder 5, the width of adjustable rule 2 equals half of main scale 1 width, one end of adjustable rule 2 equals the round nose of main scale 1 width for its diameter, on the upper surface of this round nose, there are 360 degree angle index lines 6, on the lower surface at adjustable rule 2 two ends, respectively fill the cylinder 5 that its diameter is slightly less than chute 3 width, the center of the cylinder 5 of adjustable rule 2 round noses and the center of the angle index line 6 on its upper surface are harmonious, two adjustable rules 2 are fastened on a cylinder 5 of main scale 1 with the cylinder 5 of round nose, can separate if desired, there is length graduation mark in the outside of the upper surface of adjustable rule 2.

Claims

1. Multifunctional draughting instrument, is characterized in that comprising main scale (1) and two adjustable rules (2), main scale (1) is strip chi, on the upper surface of main scale (1), open a chute (3), on the center line of chute (3), there is a datum line (4), respectively there is length graduation mark the both sides of main scale (1), at the two ends of the chute (3) of main scale (1), respectively fill a cylinder (5), the width of adjustable rule (2) equals half of main scale (1) width, one end of adjustable rule (2) equals the round nose of main scale (1) width for its diameter, on the upper surface of this round nose, there are 360 degree angle index lines (6), on the lower surface at adjustable rule (2) two ends, respectively fill the cylinder (5) that its diameter is slightly less than chute (3) width, the center of the center of the cylinder of adjustable rule round nose (5) and the angle index line (6) on its upper surface is harmonious, two adjustable rules (2) are fastened on a cylinder (5) of main scale with the cylinder (5) of round nose, can separate if desired, there is length graduation mark in the outside of the upper surface of adjustable rule (2).