CN216683859U

CN216683859U - Multifunctional semicircular ruler

Info

Publication number: CN216683859U
Application number: CN202123197505.6U
Authority: CN
Inventors: 刘险峰; 张廷彩; 刘翠霞; 黎银屏
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-06-07
Anticipated expiration: 2031-12-20

Abstract

The utility model discloses a multifunctional semicircular ruler which comprises a semicircular plate-shaped ruler body, wherein an angle marking line is formed on the arc-shaped edge of the ruler body, an angle measuring track is formed on the ruler body, the angle measuring track is of a fan-shaped structure, the corresponding circle center of the angle measuring track is overlapped with the circle center corresponding to the angle marking line, an angle measuring block is arranged in the angle measuring track, and the top and the bottom of the angle measuring block are respectively in sliding fit with two sides of the angle measuring track. The beneficial effects are that: the angle measuring block capable of sliding along the direction of the angle marking line is arranged, when the angle is drawn, the position of the angle measuring block can be adjusted to enable the edge of the angle measuring block to be compared with a required angle value, then a reference line segment is drawn by taking the edge of the angle measuring block as reference, and compared with a conventional state, the deviation of the connecting line can be reduced by taking the line segment as reference and taking a point as reference, so that the accuracy of the angle is improved; the plotting efficiency of the angle can be improved; the drawing efficiency of the plane rectangular coordinate system is greatly improved.

Description

Multifunctional semicircular ruler

Technical Field

The utility model relates to the technical field of drawing tools, in particular to a multifunctional semicircular ruler.

Background

A semicircular ruler, namely a protractor, is the most commonly used angle measuring tool for measuring angles and scribing angles. When drawing an angle, the conventional protractor needs to draw a reference edge and a vertex of the angle, then the zero point of the protractor is attached to the vertex of the angle, after the required angle is measured, a corresponding angle value drawing point is found out on the arc edge of the protractor, and then the drawn point is connected with the vertex of the angle. In the process, because the line can be drawn only by connecting two points without other reference points, if the position of a certain point is deviated in the line drawing process, the drawn angle is deviated, and the accuracy of the drawn angle is difficult to ensure; when drawing at a plurality of angles, the positions of the points are not visual and clear enough, and much time is wasted in the processes of finding the points and drawing the lines. Based on this, the applicant proposed a semicircular ruler with high accuracy and high angle plotting efficiency.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to provide a multifunctional semicircular ruler for solving the above problems, and a preferred embodiment of the present invention includes: the reference point of the ordinary protractor with the segment band body can be used for drawing angles, the angle position can be conveniently compared in the line connecting process, the accuracy of the angle value is improved, meanwhile, the observation is convenient, the technical effects of drawing efficiency and the like can be improved, and the details are explained below.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a multifunctional semicircular ruler, which comprises a semicircular plate-shaped ruler body, wherein an angle marking line is formed on the arc-shaped edge of the ruler body, an angle measuring track is formed on the ruler body, the angle measuring track is of a fan-shaped structure, the corresponding circle center of the angle measuring track is superposed with the circle center corresponding to the angle marking line, an angle measuring block is arranged in the angle measuring track, the top and the bottom of the angle measuring block are respectively in sliding fit with the two sides of the angle measuring track, and the extension lines of the two side edges of the angle measuring block penetrate through the circle center of the angle measuring track;

the ruler is characterized in that a hollowed coordinate system drawing part is arranged in the middle of the ruler body and consists of a transverse shaft groove and a longitudinal shaft groove which are perpendicular to each other, the transverse shaft groove and the longitudinal shaft groove are through grooves, and the circle center of the angle measuring track is located in the longitudinal shaft groove.

Preferably, one side of the angle measuring track is provided with a measuring block limiting plate, a limiting plate groove for fixing the measuring block limiting plate is formed in the ruler body, and after the measuring block limiting plate is clamped into the limiting plate groove, the surface of the measuring block limiting plate is flush with the surface of the ruler body.

Preferably, the gauge block limiting plate comprises a plate body, and a limiting rail with the shape consistent with the shape and size of the angle measuring rail is formed on the plate body; the two ends of one side surface of the plate body are respectively provided with an inserting rod, the inserting rods are perpendicular to the surface of the plate body, and inserting holes matched with the inserting rods are formed in the limiting plate grooves.

Preferably, the upper edges of the two sides of the limiting plate groove are respectively provided with an outer slideway and an inner slideway, the outer slideway and the inner slideway are of arc structures, the upper end and the lower end of the angle gauge block are respectively inserted into the outer slideway and the inner slideway, and the outer slideway and the inner slideway can slide.

Preferably, the angle gauge block comprises a gauge block body, two sides of the gauge block body are both planes, an upper slide block matched with the outer slide way in an inserted manner is formed on the upper edge of the gauge block body, a lower slide block matched with the inner slide way in an inserted manner is formed on the lower edge of the gauge block body, the radian of the outer edge of the upper slide block is consistent with the radian of the outer slide way, and the radian of the outer edge of the lower slide block is consistent with the radian of the inner slide way; the planes of the two side surfaces of the gauge block body penetrate through the circle centers corresponding to the angle marking lines.

Preferably, the lower end of the longitudinal shaft groove coincides with the circle center corresponding to the angle marking.

In conclusion, the beneficial effects of the utility model are as follows: 1. the angle measuring block capable of sliding along the direction of the angle marking line is arranged, when an angle is drawn, the position of the angle measuring block can be adjusted to enable the edge of the angle measuring block to be compared with a required angle value, then a reference line segment is drawn by taking the edge of the angle measuring block as a reference, and compared with a conventional state, a point is taken as a reference by taking the line segment as a reference, so that the deviation of the connecting line can be reduced, and the accuracy of the angle is improved;

2. after the edge of the angle measuring block is taken as a reference line segment, the identification is easier compared with the conventional method that a point is taken as a reference, and the plotting efficiency can be improved;

3. the middle part of the ruler body is provided with the hollowed coordinate system drawing part, so that X, Y-axis reference of the coordinate system can be drawn quickly, and the drawing efficiency of the plane rectangular coordinate system is greatly improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of the back structure of the present invention;

FIG. 3 is a schematic perspective view of the present invention;

FIG. 4 is a front view of the ruler body of the present invention;

FIG. 5 is a perspective view of the ruler body of the present invention;

FIG. 6 is a schematic perspective view of a gauge block limiting plate according to the present invention;

FIG. 7 is a schematic view of the angle gauge block of the present invention;

fig. 8 is a schematic perspective view of the angle gauge block of the present invention.

The reference numerals are explained below:

1. a ruler body; 2. a coordinate system drawing unit; 3. a gauge block limiting plate; 3a, a body; 3b, a limiting track; 3c, inserting the rod; 4. an angle gauge block; 4a, a gauge block body; 4b, an upper sliding block; 4c, a lower sliding block; 5. angle marking; 6. measuring an angle track; 7. a jack; 8. a limiting plate groove; 9. an outer slide way; 10. an inner slideway.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

Referring to fig. 1-8, the utility model provides a multifunctional semicircular ruler, which comprises a semicircular plate-shaped ruler body 1, wherein an angle marking 5 is formed on the arc edge of the ruler body 1, an angle measuring track 6 is formed on the ruler body 1, the angle measuring track 6 is of a fan-shaped structure, the corresponding circle center of the angle measuring track is overlapped with the corresponding circle center of the angle marking 5, an angle measuring block 4 is arranged in the angle measuring track 6, the top and the bottom of the angle measuring block 4 are respectively in sliding fit with two sides of the angle measuring track 6, and the extension lines of two side edges of the angle measuring block 4 penetrate through the circle center of the angle measuring track 6; after aligning the circle center corresponding to the angle marking 5 with the vertex of the angle, attaching the 0-degree line of the angle marking 5 with one side of the angle, sliding the angle gauge block 4 along the angle gauge track 6 until the side edge of the angle gauge track 6 is connected with the other side of the angle, and the indication number of the side edge corresponding to the angle marking 5 is the angle of the angle; when drawing, drawing a vertex and an edge of an angle, attaching the edge to the 0-degree line of the angle marking 5, attaching the circle center corresponding to the angle marking 5 to the vertex, sliding the angle gauge block 4 to enable one side edge of the angle gauge block to correspond to the angle value corresponding to the angle on the angle marking 5, drawing a line segment along the edge, and connecting the end part of the line segment with the vertex of the angle by taking the line segment as a reference so as to draw the corresponding angle;

the ruler comprises a ruler body 1 and a ruler body 2, wherein the ruler body is provided with a hollow coordinate system drawing part 2 in the middle, the coordinate system drawing part 2 is composed of a transverse shaft groove and a longitudinal shaft groove which are perpendicular to each other, the transverse shaft groove and the longitudinal shaft groove are through grooves, the circle center of a protraction rail 6 is located in the longitudinal shaft groove, X-axis and Y-axis reference lines of a plane rectangular coordinate system can be quickly drawn through the coordinate system drawing part 2, extension lines are added on the basis of the reference lines, scales are marked, the plane rectangular coordinate system can be quickly drawn, the drawn coordinate system is good in verticality, and drawing is more convenient; the lower end of the longitudinal shaft groove is superposed with the circle center corresponding to the angle marking 5, so that the angular point can be conveniently positioned.

A gauge block limiting plate 3 is arranged on one side of the angle measuring track 6, a limiting plate groove 8 for fixing the gauge block limiting plate 3 is formed in the ruler body 1, and after the gauge block limiting plate 3 is clamped into the limiting plate groove 8, the surface of the gauge block limiting plate 3 is flush with the surface of the ruler body 1; the gauge block limiting plate 3 comprises a plate body 3a, and a limiting rail 3b with the shape and size consistent with those of the angle measuring rail 6 is formed on the plate body 3 a; two ends of the surface of one side of the plate body 3a are respectively provided with an inserting rod 3c, the inserting rod 3c is perpendicular to the surface of the plate body 3a, an inserting hole 7 matched with the inserting rod 3c is formed in the limiting plate groove 8, and the measuring block limiting plate 3 and the limiting plate groove 8 can be more conveniently and rapidly installed and matched through the inserting and matching of the inserting hole 7 and the inserting rod 3 c;

an outer slide way 9 and an inner slide way 10 which are matched with the angle gauge block 4 to slide are respectively formed on the inner edges of two sides of the limiting plate groove 8, the outer slide way 9 and the inner slide way 10 are both of circular arc structures, and the upper end and the lower end of the angle gauge block 4 are respectively inserted into the outer slide way 9 and the inner slide way 10 and can slide along the outer slide way 9 and the inner slide way 10; the angle gauge block 4 comprises a gauge block body 4a, two sides of the gauge block body 4a are planes, an upper slide block 4b matched with the outer slide way 9 in an inserted manner is formed on the upper edge of the gauge block body 4a, a lower slide block 4c matched with the inner slide way 10 in an inserted manner is formed on the lower edge of the gauge block body 4a, the radian of the outer edge of the upper slide block 4b is consistent with the radian of the outer slide way 9, and the radian of the outer edge of the lower slide block 4c is consistent with the radian of the inner slide way 10; the planes of the two side surfaces of the gauge block body 4a penetrate through the circle centers corresponding to the angle marking lines 5; the edge of the upper sliding block 4b is connected with the inner wall of the outer sliding way 9, and the edge of the lower sliding block 4c is connected with the inner wall of the inner sliding way 10, so that when the gauge block body 4a slides in the angle measuring track 6, the side edge of the gauge block body is not inclined, the center of a circle corresponding to the angle marking 5 is always ensured to be oriented, and further when a line segment is drawn along the side face of the gauge block body 4a, the extension line of the line segment can be ensured to always penetrate through the center of the circle, when the line segment is used as a reference line, a point can only be used as a reference in comparison with a conventional protractor, and when the vertex of an angle is connected, more reference points on the connection line are arranged, so that the angle deviation can be reduced when the vertex is connected, and the accuracy of angle drawing is improved.

By adopting the structure, the angle measuring block 4 capable of sliding along the direction of the angle marking 5 is arranged, when an angle is drawn, the position of the angle measuring block 4 can be adjusted to enable the edge of the angle measuring block to be compared with a required angle value, then a reference line segment is drawn on the edge of the angle measuring block 4, and the deviation of the connecting line can be reduced by taking the line segment as reference and taking a point as reference in a conventional state, so that the accuracy of the angle is improved; after the edge of the angle measuring block 4 is taken as a reference line segment, the identification is easier compared with the conventional method that a point is taken as a reference, and the plotting efficiency can be improved; the middle part of the ruler body 1 is provided with the hollowed coordinate system drawing part 2, so that X, Y-axis reference of a coordinate system can be drawn quickly, and the drawing efficiency of a plane rectangular coordinate system is greatly improved.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. The multifunctional semicircular ruler is characterized by comprising a semicircular plate-shaped ruler body (1), wherein an angle marking (5) is formed on the arc-shaped edge of the ruler body (1), an angle measuring track (6) is formed on the ruler body (1), the angle measuring track (6) is of a fan-shaped structure, the corresponding circle center of the angle measuring track coincides with the corresponding circle center of the angle marking (5), an angle measuring block (4) is arranged in the angle measuring track (6), the top and the bottom of the angle measuring block (4) are respectively in sliding fit with the two sides of the angle measuring track (6), and the extension lines of the two side edges of the angle measuring block (4) penetrate through the circle center of the angle measuring track (6);

the ruler is characterized in that a hollowed coordinate system drawing part (2) is arranged in the middle of the ruler body (1), the coordinate system drawing part (2) is composed of a transverse shaft groove and a longitudinal shaft groove which are perpendicular to each other, the transverse shaft groove and the longitudinal shaft groove are through grooves, and the circle center of the angle measuring track (6) is located in the longitudinal shaft groove.

2. The multifunctional semicircular ruler according to claim 1, characterized in that: one side of gage angle track (6) is provided with gage block limiting plate (3), the shaping is gone up in the chi body (1) has fixedly the spacing board groove (8) of gage block limiting plate (3), gage block limiting plate (3) card is gone into inside back in spacing board groove (8), the surface of this gage block limiting plate (3) with the surface parallel and level of the chi body (1).

3. The multifunctional semicircular ruler according to claim 2, characterized in that: the gauge block limiting plate (3) comprises a plate body (3 a), and a limiting track (3 b) with the shape consistent with the shape and the size of the angle measuring track (6) is formed on the plate body (3 a); the two ends of one side surface of the plate body (3 a) are respectively provided with an inserting rod (3 c), the inserting rods (3 c) are perpendicular to the surface of the plate body (3 a), and inserting holes (7) matched with the inserting rods (3 c) are formed in the limiting plate grooves (8).

4. The multifunctional semicircular ruler according to claim 2, characterized in that: the shaping respectively has the cooperation along last in the both sides of spacing board groove (8) gliding outer slide (9) of angle gage block (4) and inner slide (10), outer slide (9) with inner slide (10) are convex structure, insert respectively at the upper and lower both ends of angle gage block (4) outer slide (9) with inner slide (10), and can follow outer slide (9) with inner slide (10) slide.

5. The multifunctional semicircular ruler according to claim 4, characterized in that: the angle gauge block (4) comprises a gauge block body (4 a), two sides of the gauge block body (4 a) are planes, an upper sliding block (4 b) matched with the outer slide way (9) in an inserted mode is formed on the upper edge of the gauge block body (4 a), a lower sliding block (4 c) matched with the inner slide way (10) in an inserted mode is formed on the lower edge of the gauge block body (4 a), the radian of the outer edge of the upper sliding block (4 b) is consistent with the radian of the outer slide way (9), and the radian of the outer edge of the lower sliding block (4 c) is consistent with the radian of the inner slide way (10); the planes of the two side surfaces of the gauge block body (4 a) penetrate through the circle centers corresponding to the angle marking lines (5).

6. The multifunctional semicircular ruler according to claim 1, characterized in that: the lower end of the longitudinal shaft groove is superposed with the circle center corresponding to the angle marking (5).