CN216885981U

CN216885981U - Angle drawing tool capable of drawing 20-70-degree angle rapidly

Info

Publication number: CN216885981U
Application number: CN202122889737.1U
Authority: CN
Inventors: 肖简雅; 庄端阳
Original assignee: Zhejiang University ZJU
Current assignee: Zhejiang University ZJU
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2022-07-05
Anticipated expiration: 2031-11-24

Abstract

The utility model relates to an angle drawing tool capable of drawing an angle of 20-70 degrees quickly, which comprises a ruler I, a ruler II and a rotating shaft, wherein the ruler I is fixed on the ruler II; the end part of the ruler I and the end part of the ruler II are pivoted through a rotating shaft, so that the ruler I and the ruler II can rotate around the rotating shaft to form an included angle; angle scales are arranged on the upper edge of the ruler I and the lower edge of the ruler II; the intersection of the ruler I and the ruler II forms a vertex of an angle, and the vertex corresponds to one angle scale value; the upper edge of the straight ruler I and the lower edge of the straight ruler II form two angular edges respectively. The angle drawing ruler is simple in structure, changes the semicircular structure of the traditional angle gauge, adopts the structure of the folding ruler, marks angle scales on the ruler, and can draw a required angle along the two ruler edges directly by opening the two rulers to the corresponding scales of the desired drawing angle during angle drawing, so that the angle drawing ruler can draw the angle quickly and is more convenient and quick to use.

Description

Angle drawing tool capable of drawing 20-70-degree angle rapidly

[ technical field ] A method for producing a semiconductor device

The utility model relates to a drawing tool, in particular to an angle drawing tool capable of drawing an angle of 20-70 degrees quickly, which has the appearance of a folding ruler, can be used for measuring angles and drawing angles quickly, and belongs to the technical field of drawing tools.

[ background of the utility model ]

When the angle is drawn by the existing widely used semi-circular protractor, a line segment needs to be drawn first, then the protractor is aligned with a point of a straight line point corresponding to the angle, and then the point is connected with an end point of the line segment to form a desired angle.

Therefore, in order to solve the above technical problems, it is necessary to provide an innovative angle drawing tool capable of quickly drawing an angle of 20 to 70 °, so as to overcome the above drawbacks in the prior art.

[ Utility model ] content

In order to solve the problem that the angle drawing of the existing protractor is inconvenient, the utility model aims to provide an angle drawing tool which is simple in structure, convenient to use and capable of drawing an angle of 20-70 degrees quickly.

In order to achieve the purpose, the utility model adopts the technical scheme that: an angle drawing tool capable of drawing 20-70 degrees quickly comprises a ruler I, a ruler II and a rotating shaft; the end part of the ruler I and the end part of the ruler II are pivoted through a rotating shaft, so that the ruler I and the ruler II can rotate around the rotating shaft to form an included angle; angle scales are arranged on the upper edge of the ruler I and the lower edge of the ruler II; the intersection of the ruler I and the ruler II forms a vertex of an angle, and the vertex corresponds to one angle scale value; the upper edge of the straight ruler I and the lower edge of the straight ruler II form two angular edges respectively.

The angle drawing tool capable of drawing 20-70 degrees quickly is further provided with the following components: the lengths of the straight edge I and the straight edge II are the same.

The angle drawing tool capable of drawing 20-70 degrees quickly is further provided with the following components: the ruler I is provided with even angle scale values, the initial value of the angle scale values is 20 degrees, and the angle scale values are sequentially increased towards the direction close to the rotating shaft.

The angle drawing tool capable of drawing 20-70 degrees quickly is further provided with the following components: and odd angle scale values are arranged on the ruler II, the initial value of the angle scale values is 21 degrees, and the angle scale values are sequentially increased towards the direction close to the rotating shaft.

The angle drawing tool capable of drawing 20-70 degrees quickly is further provided with: and length scales are arranged on the lower edge of the ruler I and/or the upper edge of the ruler II.

Compared with the prior art, the utility model has the following beneficial effects: the angle drawing tool capable of drawing 20-70-degree angles rapidly is simple in structure, changes the semicircular structure of a traditional angle gauge, adopts the structure of a folding ruler, marks angle scales on the rulers, and can draw a required angle along the two rulers directly by opening the two rulers to the corresponding scales of the desired angle during angle drawing, so that the angle drawing tool can draw the angle rapidly and is more convenient and rapid to use.

[ description of the drawings ]

FIG. 1 is a schematic diagram of an angle drawing tool capable of drawing an angle of 20-70 degrees rapidly according to the present invention.

Fig. 2 is an enlarged partial view of the angle scale on the straightedge I in fig. 1.

Fig. 3 is a close-up view of the angle scale on the straightedge II in fig. 1.

[ detailed description ] embodiments

Referring to the attached drawings 1 to 3 in the specification, the utility model relates to an angle drawing tool capable of drawing an angle of 20-70 degrees quickly, which comprises a ruler I1, a ruler II2, a rotating shaft 3 and the like.

The end part of the straight ruler I1 and the end part of the straight ruler II2 are pivoted through the rotating shaft 3, so that the straight ruler I1 and the straight ruler II2 can rotate around the rotating shaft 3 to form an included angle alpha. In this embodiment, the lengths of the straight edge I1 and the straight edge II2 are the same.

The upper edge of the ruler I1 and the lower edge of the ruler II2 are both provided with angle scales 4, and the range of the angle scales 4 is 20-70 degrees. The straight ruler I1 is provided with even angle scale values 4, the starting value of the angle scale values 4 is 20 degrees, the ending value of the angle scale values 4 is 70 degrees, the angle scale values are sequentially increased in the direction close to the rotating shaft 3, and the density of the angle scale values is gradually increased. The ruler II2 is provided with odd angle scale values 4, the starting value of the angle scale values 4 is 21 degrees, the ending value of the angle scale values 4 is 69 degrees, the angle scale values are sequentially increased in the direction close to the rotating shaft, and the density of the ruler II becomes gradually denser. By respectively marking the angle scale value 4 on the straight ruler I1 and the straight ruler II2, crowding in marking the angle scale value is avoided.

Furthermore, the intersection of the straight edge I1 and the straight edge II2 forms an angular vertex a, the vertex a corresponds to one of the angle scale values, and the upper edge of the straight edge I1 and the lower edge of the straight edge II2 form two angular edges respectively.

Furthermore, length scales are arranged on the lower edge of the straight ruler I1 and the upper edge of the straight ruler II2, so that the angle drawing tool can draw a straight line with a certain length. Of course, the length scales may also be provided only on the lower edge of ruler I1 or on the upper edge of ruler II 2.

Taking a drawing of an angle of 30 degrees as an example, the angle drawing tool capable of quickly drawing the angle of 20-70 degrees is placed on a paper surface, the ruler II2 is rotated through the rotating shaft 3 until the intersection of the lower edge of the ruler I1 and the upper edge of the ruler II2 is located at a scale of 30 degrees, a pen is used for drawing lines along the upper edge of the ruler I1 and the lower edge of the ruler II2, and two lines are intersected at a reading position, so that the required angle is obtained.

The angle drawing tool capable of drawing 20-70-degree angles quickly changes the semicircular structure of the traditional protractor, angle scales are marked on the straight ruler 1 and the straight ruler II2, and the required angle can be drawn along the two straight ruler edges directly by opening the two straight rulers to the corresponding scales of the desired angle during angle drawing, so that the angle drawing tool can be used for drawing the angle quickly and is more convenient and quick to use. The angle drawing tool capable of drawing 20-70-degree angles quickly is mainly suitable for drawing angles in the range of 20-70 degrees.

The above embodiments are merely preferred embodiments of the present disclosure, which are not intended to limit the present disclosure, and any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present disclosure, should be included in the scope of the present disclosure.

Claims

1. The utility model provides a can draw angle instrument of drawing of 20 ~ 70 jiaos fast which characterized in that: comprises a ruler I, a ruler II and a rotating shaft; the end part of the ruler I and the end part of the ruler II are pivoted through a rotating shaft, so that the ruler I and the ruler II can rotate around the rotating shaft to form an included angle; angle scales are arranged on the upper edge of the ruler I and the lower edge of the ruler II; the angle scale range is 20-70 degrees; the intersection of the ruler I and the ruler II forms a vertex of an angle, and the vertex corresponds to one angle scale value; the upper edge of the straight ruler I and the lower edge of the straight ruler II form two angular edges respectively;

an even number of angle scale values are arranged on the ruler I, the initial value of the angle scale values is 20 degrees, and the angle scale values are sequentially increased towards the direction close to the rotating shaft; odd angle scale values are arranged on the ruler II, the initial value of the angle scale values is 21 degrees, and the angle scale values are sequentially increased towards the direction close to the rotating shaft;

the lengths of the ruler I and the ruler II are the same; and length scales are arranged on the lower edge of the ruler I and the upper edge of the ruler II.