CN220298172U - Multifunctional triangular ruler capable of replacing compasses to draw circles - Google Patents

Abstract

The utility model provides a multifunctional triangular ruler capable of replacing compasses to draw circles, which comprises a triangular ruler main body and a circle drawing disc, wherein a circular hollow is arranged in the triangular ruler main body, a first chute which is annular is formed in the side surface of an inner ring of the circular hollow, an outer ring of the circle drawing disc is arranged in the first chute, the circle drawing disc can freely rotate in the first chute around the center of the circle drawing disc, a through groove passing through the center of the circle is formed in the middle of the circle drawing disc, a second chute and a third chute are respectively arranged on the left side and the right side of the through groove, a sliding block is respectively arranged in the second chute and the third chute, and the top of the sliding block is connected with two ends of a barrier strip. The utility model is designed on the basis of the existing triangular ruler to replace the traditional compass circle drawing mode, thereby effectively avoiding the problem of injury caused by taking the compass points as toys for playing in a playing mode while meeting the circle drawing requirements of students.

Description

Multifunctional triangular ruler capable of replacing compasses to draw circles

Technical Field

The utility model relates to the technical field of drawing tools, in particular to a multifunctional triangular ruler capable of replacing compasses to draw circles.

Background

In daily work and study, a drawing tool is often required to draw circles, and the most common circle drawing tool, namely compasses, generally comprises a pen point, a rotating shaft, compasses supporting legs, a hinge, a pen body, a pen point, a compasses tip and the like, wherein the compasses tip is made of metal materials, the tip is sharp, the damage to people is caused by improper use, and particularly in schools, part of students take the compasses as toys and even play with the compasses tip, so that the occurrence of the accident that the students are damaged by the compasses tip is caused, skin is pricked to bleed slightly, important organs such as eyes are pricked seriously, and the like are disabled, so that the compasses are gradually unsuitable as circle drawing tools for primary and secondary school students along with increasing importance of society on campus safety.

Disclosure of Invention

The utility model aims to solve the problems and provide a multifunctional triangular ruler capable of replacing compasses to draw circles, which is improved on the basis of the existing triangular ruler to replace the traditional compasses to draw circles, so that the requirement of students on drawing circles is met, and meanwhile, the problem that the students use compasses points as toys to play with the compasses to cause injuries is avoided.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a can replace multi-functional set square of compasses drawing circle, includes set square main part and drawing circle disc, the inside circular fretwork that has of set square main part, circular fretwork inner circle side is opened there is annular first spout, the outer loop of drawing circle disc is arranged in first spout, and drawing circle disc can freely rotate in first spout around its centre of a circle, it has a logical groove through its centre of a circle to open at drawing circle disc middle part, logical groove left and right sides is equipped with second spout and third spout respectively, respectively install a slider in second spout and the third spout, the slider top is connected with the blend stop both ends.

The circle drawing disc is provided with scale marks on two sides of the through groove, when a circle is drawn, the straight line where the blocking strip is located is perpendicular to the straight line where the through groove is located, and the second sliding groove, the third sliding groove and the through groove are parallel to each other.

The surface of the contact surface of the outer ring and the first chute is smooth, and the surface of the contact surface of the round hollow-out and round drawing disc main body is smooth.

The thickness of the circle drawing disc main body is equal to that of the triangular rule main body, the diameter of the circle drawing disc main body is equal to that of the circular hollowed-out part, and the thickness of the outer ring is smaller than that of the triangular rule main body.

The triangular rule main body is isosceles triangle.

The triangular ruler is characterized in that the triangular ruler body is an acrylic plate or a plastic plate, the sliding block is made of rubber, the surface of the sliding block is provided with roughness, and the barrier strip is made of hard materials.

The beneficial effects of the utility model are that

1. The utility model is designed on the basis of the existing triangular ruler to replace the traditional compass circle drawing mode, thereby effectively avoiding the problem of injury caused by taking the compass points as toys for playing in a playing mode while meeting the circle drawing requirements of students;

2. the multifunctional triangular ruler has the basic functions of a ruler, can also realize circle drawing operation, can reduce the number of drawing tools carried by students in examination, and has the advantages of simple integral structure and multiple functions.

Drawings

FIG. 1 is a schematic view of a multifunctional triangular ruler capable of replacing compasses;

FIG. 2 is a schematic view of the structure of the main body of the triangular rule of the present utility model;

FIG. 3 is a schematic view of a circle-drawing disc according to the present utility model;

FIG. 4 is a schematic view of the structure of section A-A of FIG. 3;

in the figure: 1. a triangular rule main body; 2. a circle drawing disc; 3. round hollowing; 4. a first chute; 5. an outer ring; 6. a through groove; 7. a second chute; 8. a third chute; 9. and a barrier strip.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by one of ordinary skill in the art without inventive faculty, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.

Examples: see fig. 1-4.

As shown in fig. 1, the multifunctional triangular ruler capable of replacing compasses for drawing circles comprises a triangular ruler main body 1 and a circle drawing disc 2, wherein a circular hollow 3 is arranged in the triangular ruler main body 1, a first chute 4 in a ring shape is formed in the side face of the inner ring of the circular hollow 3, an outer ring 5 of the circle drawing disc 2 is arranged in the first chute 4, the circle drawing disc 2 can freely rotate in the first chute 4 around the center of the circle, a through groove 6 passing through the center of the circle is formed in the middle of the circle drawing disc 2, a second chute 7 and a third chute 8 are respectively arranged on the left side and the right side of the through groove 6, a sliding block is respectively arranged in the second chute 7 and the third chute 8, and the top of the sliding block is connected with two ends of a barrier strip 9.

As shown in fig. 3, the circle-drawing disc 2 is provided with scale marks on two sides of the through groove 6, when drawing a circle, a straight line where the barrier strip 9 is located is perpendicular to a straight line where the through groove 6 is located, and the second chute 7, the third chute 8 and the through groove 6 are parallel to each other.

Specifically, in order to make the circle drawing disc 2 smoother in circle drawing, the surface of the contact surface between the outer ring 5 and the first chute 4 is smooth, and the surface of the contact surface between the circular hollow 3 and the main body of the circle drawing disc 2 is smooth.

In order to enable the barrier strip 9 not to move easily when drawing circles, the triangular square main body 1 is an acrylic plate or a plastic plate, the sliding block is made of rubber, the surface of the sliding block is provided with roughness, the barrier strip is made of hard materials, and specifically, after the barrier strip is moved to a specified scale by hands, the rubber sliding block with certain roughness rubs with the acrylic plate or the plastic plate, so that the barrier strip is prevented from moving when drawing circles to a certain extent.

Specifically, the thickness of the main body of the circle drawing disc 2 is equal to that of the triangular rule main body 1, the diameter of the main body of the circle drawing disc 2 is equal to that of the circular hollow 3, the thickness of the outer ring 5 is smaller than that of the triangular rule main body 1, and the triangular rule main body 1 is isosceles triangle.

It should be noted that the above-mentioned limitation on the thickness of the circle drawing disc 2 and the set square body 1 and the shape of the set square body 1 is to make the multifunctional set square provided in the present embodiment more beautiful, but this is not necessarily the case, and those skilled in the art should understand that, in practice, for the present utility model, the set square body 1 and the circle drawing disc 2 only need to satisfy that the circle drawing disc 2 can rotate around the fixed point inside the set square body 1, and there is no limitation on the shape and the size of the two.

And (3) a circle drawing process: firstly, aligning the inner side edge of a movable barrier strip 8 with corresponding scales on a circle drawing disc 2 according to the size of a circle to be drawn, then pressing a triangular rule main body 1 to prevent the triangular rule main body from moving, then extending a pen point into a through groove 6, which is close to the inner side edge of the barrier strip 8, slightly driving the circle drawing disc 2 to rotate by more than one circle by using the pen point, and finally removing the triangular rule to obtain the circular pattern with the required size.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (5)

1. A can replace the compasses to draw the multi-functional set square of the circle, its characteristic lies in: the novel square comprises a square main body (1) and a circle drawing disc (2), wherein a circular hollow (3) is arranged in the square main body (1), a first sliding groove (4) which is annular is formed in the side face of an inner ring of the circular hollow (3), an outer ring (5) of the circle drawing disc (2) is arranged in the first sliding groove (4), the circle drawing disc (2) can freely rotate in the first sliding groove (4) around the center of a circle, a through groove (6) passing through the center of the circle is formed in the middle of the circle drawing disc (2), a second sliding groove (7) and a third sliding groove (8) are respectively formed in the left side and the right side of the through groove (6), a sliding block is respectively arranged in the second sliding groove (7) and the third sliding groove (8), and the top of the sliding block is connected with two ends of a barrier strip (9); the circle drawing disc (2) is provided with scale marks on two sides of the through groove (6), when a circle is drawn, the straight line where the barrier strip (9) is located is perpendicular to the straight line where the through groove (6) is located, and the second sliding groove (7), the third sliding groove (8) and the through groove (6) are parallel to each other.

2. The multifunctional triangular ruler capable of drawing circles instead of compasses according to claim 1, wherein: the surface of the contact surface of the outer ring (5) and the first sliding groove (4) is smooth, and the surface of the contact surface of the round hollowed-out part (3) and the main body of the circle drawing disc (2) is smooth.

3. The multifunctional triangular ruler capable of drawing circles instead of compasses according to claim 1, wherein: the thickness of the circular drawing disc (2) is equal to that of the triangular rule main body (1), the diameter of the circular drawing disc (2) is equal to that of the circular hollow (3), and the thickness of the outer ring (5) is smaller than that of the triangular rule main body (1).

4. The multifunctional triangular ruler capable of drawing circles instead of compasses according to claim 1, wherein: the triangular ruler main body (1) is in the shape of an isosceles triangle.

5. The multifunctional triangular ruler capable of drawing circles instead of compasses according to claim 1, wherein: the triangular ruler is characterized in that the triangular ruler body (1) is an acrylic plate or a plastic plate, the sliding block is made of rubber, the surface of the sliding block is provided with roughness, and the barrier strip is made of hard materials.