CN219883588U

CN219883588U - Multifunctional ruler

Info

Publication number: CN219883588U
Application number: CN202321347395.3U
Authority: CN
Inventors: 马文静
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-05-30
Filing date: 2023-05-30
Publication date: 2023-10-24
Anticipated expiration: 2033-05-30

Abstract

The utility model provides a simple multifunctional ruler which can realize the functions of a ruler, a protractor, a triangular plate, compasses and an ellipsograph and comprises a main ruler, functional lines and sliding holes, and is characterized in that the main ruler is provided with a groove, a miniature protractor, a center hole, length scale marks and angle scale marks, the miniature protractor is arranged on two sides of one end of the main ruler, and the center of the miniature protractor is provided with the center hole; the sliding hole is arranged in the groove of the main ruler, can slide along the groove, is provided with a hole plug, and can fix the functional line; two small circular rings are arranged at two ends of the functional line, the functional line penetrates through the circle center hole and the sliding hole, and the small circular rings at two ends of the functional line penetrating through the circle center hole and the sliding hole are arranged on the same side of the main ruler.

Description

Multifunctional ruler

Technical Field

The utility model belongs to the technical field of stationery and teaching aids, and relates to a multifunctional ruler.

Background

Firstly, the existing mathematical teaching tools are more in variety, such as a ruler, a triangle, a protractor, a compass and the like, and are inconvenient to carry during teaching; secondly, the stationery for students is more in variety, and the stationery is also inconvenient to carry and easy to lose; thirdly, for drawing ellipses, simple tools are fewer; the triangular corner-forming device disclosed by the utility model with the patent number of CN201320630709.0 has the functions of a ruler, a triangular plate and a protractor, but cannot draw circles and ellipses; the utility model designs a multifunctional ruler which integrates multiple functions of a ruler, a triangular plate, a protractor, a compass and an ellipsograph into a whole to solve the problems.

Disclosure of Invention

The utility model aims to provide a simple multifunctional ruler which can realize functions of a ruler, a protractor, a triangle, a compass and an ellipsograph.

The technical scheme of the utility model is as follows: the multifunctional ruler comprises a main ruler, functional lines and sliding holes; the novel angle gauge is characterized in that a groove, a miniature angle gauge, a circle center hole, length scale marks and angle scale marks are arranged on a main scale, the miniature angle gauge is arranged on two sides of one end of the main scale, and the circle center of the miniature angle gauge is provided with the circle center hole; the sliding hole is arranged in the groove of the main ruler, can slide along the groove, is provided with a hole plug, and can fix the functional line; two small circular rings (the diameter of the small circular rings is larger than that of the circle center hole and the sliding hole) are arranged at two ends of the functional line, the functional line penetrates through the circle center hole and the sliding hole, and the small circular rings at two ends of the functional line penetrating through the circle center hole and the sliding hole are arranged on the same side of the main ruler.

First, draw a circle: through removing the slide hole, corresponding function line length through the centre of a circle hole that can adjust uses the centre of a circle hole as the centre of a circle, inserts through the little ring of centre of a circle hole one end function line with nib etc. and tautens the function line, just can draw the circle in a circle of rotation.

Second, construct the angle using a miniature protractor: by moving the slide hole, the length of the functional line passing through the center hole can be correspondingly adjusted, and the angle or drawing angle can be measured by combining with a miniature protractor with the center hole; for example, drawing an angle, fixing a circle center hole, inserting a small circular ring of a functional line through one end of the circle center hole by using a pen point and the like, tensioning the functional line, when the functional line is overlapped with a zero-degree line of the miniature angle gauge, marking a point, when the functional line is overlapped with an angle line drawn on the miniature angle gauge, marking a point, and connecting the two marking points with the point where the circle center hole is located, thereby drawing a required angle.

Third, construct angles with construct isosceles triangles: by moving the sliding hole, tensioning the midpoint of the functional line, and connecting the point of the sliding hole, the midpoint of the functional line and the point of the center hole, the three points are connected into an isosceles triangle, and because the sum of the inner angles of the triangle is equal to 180 degrees, the vertex angle of the isosceles triangle approaches from 180 degrees to zero degrees in the process that the sliding hole approaches to the center hole, the position in the groove of the sliding hole corresponds to the degree of the vertex angle of the isosceles triangle one by one, the corresponding relation is marked, so that the angle can be constructed, and the method of using the functional line as two waists of the isosceles triangle is simple and easy to implement, and the isosceles triangle is easy to manufacture and operate.

Fourth, drawing ellipse: the point where the sliding hole is positioned and the point where the circle center hole is positioned are regarded as two focuses of the ellipse by moving the sliding hole, the length of the functional line is adjusted by pulling out and inserting the sliding hole through the sliding hole plug, the functional line is pulled outwards by using a pen point and the like, and the ellipse is obtained after one circle of movement.

The multifunctional ruler has the advantages that one end of the multifunctional ruler is provided with the miniature protractor, the multifunctional ruler has the angle measuring function, and the multifunctional ruler can draw straight lines, line segments, circular arcs, circles, ellipses, construct isosceles triangles and the like by combining the stated functions. Particularly by using the definition of ellipses, ellipses can be simply and easily drawn.

The following will further explain with reference to the drawings

Drawings

FIG. 1 is a schematic view of the structure of the components of the present utility model;

FIG. 2 is a schematic diagram of the overall structure of the present utility model;

FIG. 3 is a schematic diagram of a circle drawing structure according to the present utility model;

FIG. 4 is a schematic view of an isosceles triangle and ellipse construction according to the present utility model;

in the figure: 1. a main scale; 11. a groove; 12. a miniature protractor; 13. a center hole; 14. length scale marks; 15. angle graduation marks; 2. a functional line; 21. a small circular ring; 22. a functional line midpoint; 3. a slide hole; 31 hole plugs.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-4, the multifunctional ruler comprises a main ruler (1), a functional line (2) and a sliding hole (3); the multifunctional angle gauge is characterized in that a groove (11), a miniature protractor (12), a circle center hole (13), length scale marks (14) and angle scale marks (15) are arranged on a main scale (1), the length scale marks (14) are arranged on the main scale (1) and are 20 cm, and the length of a functional line (2) is 20 cm; the miniature protractor (12) is arranged on two sides of one end of the main ruler (1), and a circle center hole (13) is arranged at the circle center of the miniature protractor (12); the sliding hole (3) is arranged in the main ruler groove (11) and can slide along the groove (11), and a hole plug (31) is arranged in the sliding hole (3) and can fix the functional wire (2); two small circular rings (21) are arranged at two ends of the functional line (2), the functional line (2) penetrates through the circle center hole (13) and the sliding hole (3), and the small circular rings (21) at two ends of the functional line penetrating through the circle center hole (13) and the sliding hole (3) are arranged on the same side of the main ruler (1).

First, draw a circle: as shown in fig. 2 and 3, by moving the slide hole (3), the length of the functional line (2) passing through the circle center hole (13) can be correspondingly adjusted, the slide hole (3) is moved to the position of 15 cm of the main ruler length scale line (14), the circle center hole (13) is used as the circle center, a nib or the like is used for inserting a small circular ring (21) of the functional line passing through one end of the circle center hole (13), the functional line (2) is pulled outwards, and a circle with the radius of 5 cm can be drawn after one circle is rotated.

Second, the angle is built using a miniature protractor (12): referring to fig. 2 and 3, by moving the slide hole (3), the length of the functional line (2) passing through the center hole (13) can be correspondingly adjusted, and by combining with the miniature protractor (12) where the center hole (13) is located, the angle or drawing angle can be measured, for example, 30-degree angle can be drawn, the center hole (13) is fixed, a nib or the like is inserted into a small functional line ring (21) passing through one end of the center hole (13), the functional line (2) is tensioned, when the functional line (2) coincides with the miniature protractor (12) in a zero-degree line, a marking point is made, when the functional line (2) coincides with the miniature protractor (12) in a 30-degree angle line, the marking point is made, and the two marking points and the point where the center hole (13) are connected, thus the desired 30-degree angle can be drawn.

Constructing an isosceles triangle by utilizing the construction angle: as shown in fig. 2 and fig. 4, by moving the slide hole (3), tensioning the midpoint of the functional line (2), the point of the slide hole (3), the midpoint of the functional line (22) and the point of the center hole (13), the three points are connected to form an isosceles triangle, and because the inner angle sum of the triangle is equal to 180 degrees, the isosceles triangle vertex angle approaches from 180 degrees to zero degrees in the sliding approaching process of the slide hole (3) to the center hole (13), the position in the groove (11) where the slide hole (3) is located corresponds to the isosceles triangle vertex angle degree one by one, the corresponding relationship is marked as an angle scale line (15), so that an angle can be constructed, such as constructing 120 degrees, moving the slide hole (3) to the 120 degrees of the angle scale line (15), and tensioning the functional line midpoint (22), wherein the isosceles triangle vertex angle is 120 degrees.

Fourth, drawing ellipse: as shown in fig. 2 and 4, the point where the slide hole (3) is located and the point where the circle center hole (13) is located are regarded as two foci of an ellipse by moving the slide hole (3), the length of the functional wire (2) is adjusted by pulling out and inserting the slide hole (3) through the slide Kong Kongsai (31), and after the length of the functional wire (2) is fixed (the length between the two foci is larger), the functional wire (2) is tensioned by a pen point, and one rotation is the ellipse.

The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the utility model in any way, and any simple modification, equivalent variation and modification made to the above embodiments according to the technical substance of the present utility model falls within the scope of the technical solution of the present utility model.

Claims

1. The multifunctional ruler comprises a main ruler (1), functional lines (2) and sliding holes (3), and is characterized in that grooves (11), miniature protractors (12), circle center holes (13), length scale marks (14) and angle scale marks (15) are arranged on the main ruler (1).

2. The multifunctional ruler according to claim 1, wherein the miniature protractor (12) is arranged on both sides of one end of the main ruler (1), and a circle center hole (13) is arranged at the circle center of the miniature protractor (12).

3. A multi-functional ruler according to claim 1, wherein the slide hole (3) is mounted in the main ruler groove (11) and is slidable along the groove (11).

4. A multifunctional ruler according to claim 1, wherein a hole plug (31) is arranged in the sliding hole (3) to fix the functional wire (2).

5. The multifunctional ruler according to claim 1, wherein two small circular rings (21) are arranged at two ends of the functional wire (2), the functional wire (2) penetrates through the circle center hole (13) and the sliding hole (3), and the small circular rings (21) at two ends of the functional wire penetrating through the circle center hole (13) and the sliding hole (3) are arranged on the same side of the main ruler (1).