CN201128324Y

CN201128324Y - Diagraph for arbitrary angles

Info

Publication number: CN201128324Y
Application number: CNU2007200150964U
Authority: CN
Inventors: 宋英哲
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-10-09
Filing date: 2007-10-09
Publication date: 2008-10-08
Anticipated expiration: 2017-10-09

Abstract

The utility model relates to an arbitrary angle diagraph which comprises two protractors and three straight rulers. The surface of each straight ruler is provided with a chute which has a strip opening along the long edge direction. The two ends of each ruler are respectively overlapped and connected with different straight rulers, and shafts are inserted in the overlapping parts. Two shafts are respectively connected with different protractors. When the arbitrary angle diagraph is used, users can use the protractors for measuring angles or use straight rulers for measuring the length to satisfy the different demands of people. The arbitrary angle diagraph has the advantages of simple structure, convenience, practicality, beautiful configuration, strong function, reasonable process, etc.

Description

Any angle diagraph

Technical field

The utility model relates to a kind of drawing instrument, especially a kind of any angle diagraph.

Background technology

As everyone knows, protractor and ruler are the survey tools that often uses during people learn, work.But when drawing triangle pattern, protractor need take measurement of an angle earlier, utilizes ruler to come line drawing again, and this process variable hornwork slides easily, and figure is caused certain error.In addition, under the situation of learning Atria bar edge lengths, people still can not draw triangle simply and rapidly, bring very big inconvenience to people.For this reason, we provide a kind of any angle diagraph very necessary.

Summary of the invention

The purpose of this utility model provides a kind of any angle diagraph, is used to solve the problem that general tool can't be drawn triangular pattern quickly and accurately.

For achieving the above object, any angle of the utility model diagraph comprises two protractors and three rulers, and the direction on long limit, edge is provided with the strip gab chute on every ruler surface; The two ends of every ruler link to each other with different ruler stacks respectively, and insert rotating shaft in stack place; Distinguish the different protractor of socket in two rotating shafts therein.

After adopting said structure, but user's application quantity hornwork take measurement of an angle, also can measure length by ruler, satisfy people's different demands.

The utility model has the advantages that: simple in structure, convenient and practical, good looking appearance, powerful, technology is reasonable, not only can take measurement of an angle but also can draw triangle, improves drawing efficiency and quality.

Description of drawings

Fig. 1 is the overall structure schematic diagram of any angle of the utility model diagraph.

The specific embodiment

As shown in Figure 1, any angle of the utility model diagraph comprises two protractor 1-1,1-2 and three ruler 2-1,2-2,2-3, is provided with strip gab chute 3 along the direction on long limit on every ruler surface; The two ends of every ruler link to each other with different ruler stacks respectively, and insert rotating shaft 4 in stack place; Distinguish socket protractor 1-1 and protractor 1-2 in two rotating shafts 4 therein.

1) method for drafting at angle:

The user uses the size of protractor 1-1 measured angular earlier, after meeting the requirements of the number of degrees, represents the both sides at angle by two rulers that link to each other with protractor 1-1, just can directly draw the angle that needs along ruler.

2) leg-of-mutton method for drafting:

According to three kinds of different conditions, draw in accordance with the following methods respectively:

1., make three triangles that the length of side is known: extract rotating shaft 4 respectively, press scale numerical value and regulate the length of ruler 2-1,2-2,2-3, again rotating shaft 4 is inserted again in the chute 3 of per two ruler overlappings and fix, this moment, three triangles that ruler is formed were triangles of needs, and the user only needs just can along the inner edge drafting.

2., make the triangle on 1 jiao on known 2 limits: at first determine angle, extract rotating shaft 4 then and adjust overlapping point with protractor, make ruler length equal the length on the known limit of triangle after, graphing just can.

3., make the triangle on 2 jiaos on known 1 limit: determine angle value with two protractor 1-1,1-2 respectively, after angle is determined, adjust ruler length, make its length that equals known limit, the figure that formed this moment is to need figure.

Claims

1, a kind of any angle diagraph comprises two protractors (1-1), (1-2) and three rulers (2-1), (2-2), (2-3), it is characterized in that: the direction along long limit is provided with strip gab chute (3) on every ruler surface; The two ends of every ruler link to each other with different ruler stacks respectively, and insert rotating shaft (4) in stack place; Socket protractor (1-1) and protractor (1-2) are respectively gone up in two rotating shafts (4) therein.