CN113147235A

CN113147235A - Multipurpose set square

Info

Publication number: CN113147235A
Application number: CN202110369966.2A
Authority: CN
Inventors: 李新亚
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2021-07-23

Abstract

The invention relates to a multipurpose triangle which is made of transparent materials and comprises a board body (1), a protractor (4), a DEF triangular window (3), an ABC triangular window (8), a central hole (6), a protractor window (7) and a measuring ruler scribing line (2). The multifunctional set square is universal in structure and has the difference that the area of the board body (1) is large if the multifunctional set square is used for teaching, and the area of the board body (1) is small if the multifunctional set square is used for learning. A multi-purpose set square can replace a right angle set square with a vertex angle of 30 degrees, an isosceles right angle set square and a protractor. The multipurpose set square can also replace compasses under the condition of not needing to draw circles with different sizes. The multi-purpose set square can also be used for rapidly drawing an angle of 30 degrees, an angle of 37 degrees, an angle of 45 degrees, an angle of 53 degrees and an angle of 60 degrees. The multifunctional set square is convenient to carry and use, and is a powerful assistant for teachers and students to draw pictures and measure angles and lengths.

Description

Multipurpose set square

Technical Field

The invention relates to a multipurpose set square, in particular to a multipurpose set square which is used for drawing or measuring on a blackboard and a paper surface, has universal structure and complete functions and is convenient to carry and use.

Background

In physical problems, the angle is often 30 °, or 60 °, or 45 °, or 37 °, or 53 ° for simplicity of calculation. The three corners before drawing are good, the teaching aid is ready, and the drawing is quick. The two angles at the back can be drawn only by means of the protractor, the required time is long, a teacher draws on a blackboard, students wait for the time with patience below, and the teaching effect is affected due to the impatience of the students.

Disclosure of Invention

The invention aims to solve the technical problem of providing a multipurpose set square which is used for drawing or measuring on a blackboard and a paper surface, has a universal structure and complete functions, and is convenient to carry and use.

In order to solve the technical problem, the technical scheme of the invention is as follows:

a multipurpose triangle is made of transparent material and comprises a board body, a protractor, a DEF triangular window, an ABC triangular window, a central hole, a protractor window and a measuring ruler scribing line.

This board body, it is the right angle set square, and its apex angle is 30, and its hypotenuse is located the left side, and its two right-angle sides are long limit and minor face respectively, and this long limit is vertical and be located the right side, and this minor face level just is the base.

The multifunctional set square can be used for teachers to draw pictures or measure on a blackboard and can also be used for students to draw pictures or measure on paper.

If the multipurpose triangle is used for drawing or measuring on a blackboard, the area of the board body is large; if the multipurpose triangle is used for drawing or measuring on paper, the area of the board body is small.

The measuring scale scribed lines are positioned on the plate surface near the bevel edge of the plate body, the distribution length of the measuring scale scribed lines along the bevel edge is determined according to the length of the bevel edge, and the distance between two adjacent long scribed lines is 1 cm; marking the corresponding length value beside the scale reticle; in fact, the plate surface of the bevel edge also serves as a measuring tape.

The protractor occupies the plate surface of the plate body, is positioned at the middle lower part of the plate body, is semicircular, has a diameter scribed line adjacent to the long edge and is parallel to the long edge, and has an angle scribed line on the inner side plate surface of the semicircular arc; the sides of the angle scale line indicate the corresponding angle value.

The central hole is positioned on the center of the protractor, and can avoid the refraction of the plate body to light, so that the center of the protractor is accurately positioned.

The protractor window is in a large half circular arc shape, is arranged on the plate body and is positioned on the outer side of the semi-circular arc surface of the protractor, the circle center of the protractor is superposed with the circle center of the protractor, the protractor is opposite to the semi-circular arc surface of the protractor, and the subtended central angle is larger than 180 degrees and smaller than 190 degrees; if the multipurpose triangle is used for drawing or measuring on a blackboard, the radial width of the angle measuring window is larger than the outer diameter of chalk; if the multipurpose triangle is used for drawing or measuring on paper, the radial width of the angle measuring window is larger than the outer diameter of a ball-point pen refill.

The DEF triangular window is located above the protractor on the plate body, and has a DF side parallel to the long side, and a D angle or E angle of 45 ° and a F angle of a right angle.

The ABC triangular window is arranged on the plate body and positioned at the lower left of the protractor, the BC side of the ABC triangular window is parallel to the short side, the A angle of the ABC triangular window is 53 degrees, the B angle of the ABC triangular window is 37 degrees, and the C angle of the ABC triangular window is a right angle.

For clarity and conspicuity, the scale scribe line, the diameter scribe line and the angle scribe line are all painted black; the length value marked beside the scale groove and the angle value marked beside the angle groove are marked in black.

The multipurpose set square has the following functions:

firstly, the board body can be used for quickly drawing an angle of 30 degrees, or an angle of 60 degrees, or a right angle, or a straight line.

Secondly, with the DEF triangular window, a 45-degree angle can be drawn quickly, which is not possessed by a traditional right-angle triangle with a single vertex angle of 30 degrees.

Thirdly, by utilizing the ABC triangular window, an angle of 37 degrees or an angle of 53 degrees can be drawn quickly, which is not possessed by the traditional single right-angle triangular plate with the vertex angle of 30 degrees, even if the traditional single isosceles right-angle triangular plate is not possessed.

Fourthly, any angle can be drawn or the angle can be measured by utilizing the protractor, which is not possessed by the traditional right-angle triangle with a single apex angle of 30 degrees.

Fifthly, the length can be determined or measured by using the measuring scale.

Sixth, the protractor window can be used for drawing circular arcs or circles instead of compasses, which is not possessed by a traditional single right-angle triangular plate with a vertex angle of 30 degrees, even a traditional single protractor does not possess.

Seventhly, the circle center of the central hole is positioned without being influenced by the plate body on light refraction, which is not possessed by the traditional transparent plate protractor.

This multi-purpose set square, teacher are used for teaching and student are used for the study structure general, carry and convenient to use, and the function surpasss the function sum that traditional single apex angle is 30 right angle set square, isosceles right angle set square and protractor.

After adopting such structure, owing to combine into whole with traditional solitary right angle set square and the protractor that the apex angle is 30, owing to open DEF triangle-shaped window on the board body, multi-purpose set square possesses the complete function of right angle set square, isosceles right angle set square and the protractor that the apex angle is 30. If a teacher, particularly a physical teacher, needs to draw pictures on a blackboard, the teacher only needs to bring a multipurpose triangle, an isosceles right triangle and an angle gauge, and then the teacher does not need to bring the multipurpose triangle, the isosceles right triangle and the angle gauge. If students need to solve problems, particularly physical problems, only one multipurpose set square is needed, and the isosceles right set square and the protractor are not needed.

After the structure is adopted, because the protractor is positioned on the board body, and because the DEF triangular window is arranged on the board body, the materials of an independent protractor and an isosceles right triangle are saved, and the manufacturing cost is reduced.

After adopting such structure, because the board body is opened the ABC triangle-shaped window, draw 37 degrees angle or 53 degrees angles very fast.

After the structure is adopted, the side lengths of the three sides of the ABC triangular window have a relation of 3: 4: 5. To solve the physical problem, an angle of 37 ° or 53 ° is often drawn. The ABC triangle window is particularly popular among high school physics teachers and high school students. The design not only develops new functions, but also improves the teaching or learning efficiency.

After the structure is adopted, due to the arrangement of the central hole, errors caused by light refraction are avoided, the angle can be accurately measured, the angle can be accurately calibrated, and a good effect is achieved due to new functions.

After the structure is adopted, because the central angle opposite to the angle measuring window is larger than 180 degrees and smaller than 190 degrees, a circle can be drawn by only two steps (two semicircles are drawn and are mutually connected). The innovation makes teachers, especially physical teachers, not need to take compasses when taking lessons without drawing circles with different sizes, and students finish homework, especially physical homework without using compasses.

After adopting such structure, though open DEF triangle-shaped window, ABC triangle-shaped window and angulation window on the board body, because the position arrangement of three is reasonable, the board body is durable in use.

Drawings

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

FIG. 1 is a top view of a multi-purpose set square.

Detailed Description

As shown in fig. 1, a multi-purpose set square is made of a transparent material and includes a plate body 1, a protractor 4, a DEF triangular window 3, an ABC triangular window 8, a central hole 6, a protractor window 7, and a measuring tape scribed line 2.

This board body 1, it is the right angle set square, and its apex angle is 30, and its hypotenuse 1c is located the left side, and its two right-angle sides are long limit 1a and minor face 1b respectively, and this long limit 1a is vertical and be located the right side, and this minor face 1b level just is the base.

If the multipurpose triangle is used for drawing or measuring on a blackboard, the area of the board body 1 is large; if the multipurpose triangle is used for drawing or measuring on paper, the area of the board body 1 is small.

The measuring scale scribed lines 2 are positioned on the plate surface near the bevel edge 1c on the plate body 1, the distribution length of the measuring scale scribed lines along the bevel edge 1c depends on the length of the bevel edge 1c, but the distance between two adjacent long scribed lines is 1 cm; the side of the scale reticle 2 marks the corresponding length value; in fact, the plate surface of the oblique side 1c also serves as a measuring tape.

The protractor 4 occupies the plate surface of the plate body 1, is positioned at the middle lower part of the plate body 1, is semicircular, has a diameter scribed line 4a adjacent to the long edge 1a and is parallel to the long edge 1a, and has an angle scribed line 5 on the inner side plate surface of the semicircular arc; the sides of the angle scale line 5 indicate the respective angle value.

The central hole 6 is located at the center of the protractor 4, and can avoid the refraction of the plate body 1 to the light, so that the center of the protractor 4 can be accurately positioned.

The protractor window 7 is a large half circular arc, is arranged on the plate body 1, is positioned on the outer side of the semicircular arc surface of the protractor 4, has the circle center superposed with the circle center of the protractor 4, is opposite to the semicircular arc surface of the protractor 4, and has the opposite central angle of more than 180 degrees and less than 190 degrees; if the multipurpose triangle is used for drawing or measuring on a blackboard, the radial width of the angle measuring window 7 is larger than the outer diameter of chalk; if the multipurpose triangle is used for drawing or measuring on paper, the radial width of the angle measuring window 7 is larger than the outer diameter of a ball-point pen refill.

The DEF triangular window 3 is provided on the plate body 1 above the protractor 4, and has a DF side parallel to the long side 1a, and has a D angle or E angle of 45 ° and a F angle of a right angle.

The ABC triangular window 8 is provided on the plate body 1 and located at the lower left of the protractor 4, and has a BC side parallel to the short side 1B, an angle a of 53 °, an angle B of 37 °, and an angle C of a right angle.

For clarity and conspicuity, the scale groove 2, the diameter groove 4a and the angle groove 5 are all painted black; the length value indicated next to the scale line 2 and the angle value indicated next to the angle line 5 are both marked in black.

The multipurpose set square has the following functions:

firstly, the plate body 1 can be used for quickly drawing an angle of 30 degrees, or an angle of 60 degrees, or a right angle, or a straight line.

Secondly, with this DEF triangular window 3, a 45 ° angle can be drawn quickly, which is not available with a conventional single right-angled triangle with a vertex angle of 30 °.

Thirdly, by utilizing the ABC triangular window 8, an angle of 37 degrees or an angle of 53 degrees can be drawn quickly, which is not possessed by the traditional single right-angle triangular plate with the vertex angle of 30 degrees, even if the traditional single isosceles right-angle triangular plate is not possessed.

Fourthly, any angle can be drawn or the angle can be measured by utilizing the protractor 4, which is not possessed by the traditional right-angle triangle with a single apex angle of 30 degrees.

Fifthly, the length can be determined or measured by using the measuring scale.

Sixth, the protractor window 7 can be used to draw circular arcs or circles instead of compasses, which is not provided by the conventional single right-angle triangle with a vertex angle of 30 degrees, even the conventional single protractor does not.

Seventhly, the circle center location of the central hole 4 is not affected by the light refraction of the plate body 1, which is not possessed by the traditional transparent plate protractor.

The embodiments of the present invention are described in detail above with reference to the accompanying drawings. The present invention is not limited to the above-described embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. Variations that do not depart from the gist of the invention are intended to be within the scope of the invention.

Claims

1. A multi-purpose set square which characterized in that:

the multipurpose triangle is made of transparent materials and comprises a board body (1), a protractor (4), a DEF triangular window (3), an ABC triangular window (8), a central hole (6), a protractor window (7) and a measuring ruler scribing line (2);

the plate body (1) is a right-angle triangle, the vertex angle of the triangle is 30 degrees, the bevel edge (1c) of the triangle is positioned on the left side, the two right-angle edges of the triangle are respectively a long edge (1a) and a short edge (1b), the long edge (1a) is vertical and positioned on the right side, and the short edge (1b) is horizontal and is a bottom edge;

the multifunctional set square can be used for drawing or measuring on a blackboard by a teacher and drawing or measuring on paper by students;

if the multipurpose triangle is used for drawing or measuring on a blackboard, the area of the board body (1) is large; if the multipurpose triangle is used for drawing or measuring on paper, the area of the board body (1) is small;

the measuring scale scribed lines (2) are positioned on the plate surface near the bevel edge (1c) on the plate body (1), the distribution length of the measuring scale scribed lines along the bevel edge (1c) is determined according to the length of the bevel edge (1c), but the distance between two adjacent long scribed lines is 1 cm; the side of the scale reticle (2) is marked with a corresponding length value; in fact, the plate surface of the bevel edge (1c) also serves as a measuring scale;

the protractor (4) occupies the plate surface of the plate body (1), is positioned at the middle lower part of the plate body (1), is semicircular, has a diameter scribed line (4a) adjacent to the long edge (1a), is parallel to the long edge (1a), and has an angle scribed line (5) on the inner plate surface of the semicircular arc; the side of the angle scale line (5) marks a corresponding angle value;

the central hole (6) is positioned on the center of the protractor (4) and can avoid the refraction of the plate body (1) to light, so that the center of the protractor (4) is accurately positioned;

the angle measuring window (7) is in a large half circular arc shape, is arranged on the plate body (1), is positioned on the outer side of the semicircular arc surface of the angle measuring device (4), has a circle center superposed with the circle center of the angle measuring device (4), is opposite to the semicircular arc surface of the angle measuring device (4), and has a subtended central angle larger than 180 degrees and smaller than 190 degrees; if the multipurpose triangle is used for drawing or measuring on a blackboard, the radial width of the angle measuring window (7) is larger than the outer diameter of chalk; if the multipurpose triangle is used for drawing or measuring on paper, the radial width of the angle measuring window (7) is larger than the outer diameter of the ball-point pen refill;

the DEF triangular window (3) is arranged on the plate body (1) and is positioned above the protractor (4), the DF edge of the window is parallel to the long edge (1a), the D angle or E angle of the window is 45 degrees, and the F angle of the window is a right angle;

the ABC triangular window (8) is arranged on the plate body (1) and located on the lower left of the protractor (4), the BC side of the ABC triangular window is parallel to the short side (1B), the A angle of the ABC triangular window is 53 degrees, the B angle of the ABC triangular window is 37 degrees, and the C angle of the ABC triangular window is a right angle.

2. The multi-purpose set square of claim 1, wherein:

the measuring scale reticle (2), the diameter reticle (4a) and the angle reticle (5) are all coated in black; the length value marked beside the measuring tape reticle (2) and the angle value marked beside the angle reticle (5) are marked in black.

3. The multi-purpose set square of claim 1, wherein:

the multipurpose set square has the following functions:

firstly, the board body (1) can be used for quickly drawing a 30-degree angle, a 60-degree angle, a right angle or a straight line;

secondly, the DEF triangular window (3) can be used for quickly drawing a 45-degree angle, which is not possessed by a traditional right-angle triangular plate with a single vertex angle of 30 degrees;

thirdly, the ABC triangular window (8) can be used for quickly drawing a 37-degree angle or a 53-degree angle, which is not possessed by the traditional single right-angle triangular plate with the vertex angle of 30 degrees, even if the traditional single isosceles right-angle triangular plate is not possessed;

fourthly, any angle can be drawn or the angle can be measured by utilizing the protractor (4), which is not possessed by the traditional right-angle triangle with a single apex angle of 30 degrees;

fifthly, the length can be determined or measured by using the measuring scale;

sixthly, the protractor window (7) can be used for replacing compasses to draw circular arcs or circles, which is not possessed by the traditional single right-angle triangular plate with the apex angle of 30 degrees, even if the traditional single protractor is not possessed;

seventhly, the circle center of the central hole (4) is positioned without being influenced by the light refraction of the plate body (1), which is not possessed by the traditional transparent plate protractor;

the multifunctional set square is used for teaching and is universal for learning structures for students, is convenient to carry and use, and has the function exceeding the function sum of a single traditional right-angle set square with the apex angle of 30 degrees, an isosceles right-angle set square and a protractor.