An integrated statistical drawing ruler

Abstract

The present invention is applicable to the technical field of rulers, and provides an integrated statistical drawing ruler, including a protractor and a ruler; one end of the rear side surface of the ruler is rotatably connected to one end of the bottom of the front side surface of the protractor through a limit rod, one end of the bottom of the front side surface of the protractor and one end of the rear side surface of the ruler are both provided with insertion holes adapted to the limit rod, and the rear end of the limit rod is fixedly connected to a limit plate. The integrated statistical drawing ruler uses a center convex block as the center of the circle, places a pencil inside the insertion hole, and rotates it in a counterclockwise direction to draw an arc, and by adjusting the position of the protractor, a circle can be drawn after the pencil circles around once, which is convenient for drawing a sector statistical chart, and the pencil can be placed inside the insertion hole at different positions to facilitate drawing circles of different radii, and the operation is simple and convenient to draw a circle, and then the corresponding sector chart can be drawn through calculation and a protractor.

Description

Technical Field

[0001] The invention belongs to the technical field of rulers, and in particular relates to an integrated statistical drawing ruler. Background Art

[0002] A ruler, also known as a measuring ruler or a graduated ruler, is a tool used to draw line segments and measure lengths. A ruler usually has scales to measure lengths. Some rulers have special shapes such as letters or circular holes in the middle to facilitate drawing. They are usually used to measure and calculate lengths. They are generally divided into tape measures, vernier calipers, squares and rulers. Rulers used in different occasions have different requirements and standards. In addition to requiring accurate values, the second focus is on the quality of the engraved values. Generally, a protective film will be applied after the values ​​are engraved. The third point is the choice of materials, which are mainly divided into plastic, metal and wooden rulers.

[0003] In daily work, in order to allow staff to view the differences in data numbers more intuitively, they will draw various graphic statistical graphs based on statistical numbers using geometric figures, images of objects and maps. The drawing of statistical graphs requires the use of rulers, protractors and compasses to complete the drawing. The large number of tools required makes the drawing of statistical graphs inconvenient and not conducive to the drawing and use of statistical graphs. Summary of the invention

[0004] The present invention provides an integrated statistical drawing ruler, aiming to solve the problem that drawing of statistical graphs requires the use of a ruler, a protractor and a compass together to complete the drawing, and that many tools are required, resulting in inconvenience in drawing statistical graphs.

[0005] The present invention is implemented as follows: an integrated statistical drawing ruler includes a protractor and a ruler;

[0006] One end of the rear side surface of the ruler is rotatably connected to one end of the bottom of the front side surface of the protractor through a limit rod, one end of the bottom of the front side surface of the protractor and one end of the rear side surface of the ruler are both provided with insertion holes adapted to the limit rod, two ends of the limit rod respectively extend to the front side surface of the ruler and the rear side surface of the protractor through the inside of the two insertion holes, the rear end of the limit rod is fixedly connected to the limit plate, and the rear side surface of the limit plate is fixedly connected to a center convex block;

[0007] A positioning block is detachably provided at the front end of the limiting rod, a bolt is fixedly connected to the rear side of the positioning block, a threaded hole matching the bolt is provided on the front end surface of the limiting rod, and the bolt is threadedly connected to the inside of the threaded hole;

[0008] A plurality of insertion holes are formed on the front side of the ruler, and the rear side of the inner wall of the insertion hole extends to the rear side of the ruler, and the plurality of insertion holes are evenly spaced and arranged along the length direction of the ruler;

[0009] The length of the ruler is equal to the bottom length of the protractor. When the ruler is rotated to overlap with the protractor, the rear side of the ruler contacts the front side of the protractor.

[0010] Preferably, a plurality of arc convex blocks are fixedly connected to the surface of the ruler, and the plurality of arc convex blocks are evenly spaced and arranged along the length direction of the ruler.

[0011] Preferably, a plurality of triangular protrusions are fixedly connected to the other end surface of the ruler, and the plurality of triangular protrusions are evenly spaced and arranged along the width direction of the ruler.

[0012] Preferably, a plurality of special-shaped holes are provided on the surface of the protractor, and the special-shaped holes include circular, equilateral triangle and square.

[0013] Preferably, a cylinder is detachably threadedly connected to the interior of one of the insertion holes, and an elastic pad is fixedly connected to the inner wall surface of the cylinder.

[0014] Preferably, one end of the bottom of the front side surface of the protractor is fixedly connected to a storage box, the inner cavity of the storage box is capable of sliding in the horizontal direction and is provided with a connecting plate vertically, the top of the connecting plate can be pulled out to the outside of the storage box, the top of the connecting plate is fixedly connected to a fixing ring, one side of the connecting plate is laterally fixedly connected to a clamping rod, the other end of the clamping rod can be pulled out to the outside of the storage box, the other side of the connecting plate is laterally fixedly connected to a pulling rod, the other end of the pulling rod can be pulled out to the outside of the storage box.

[0015] Preferably, one end face of the ruler is fixedly connected to a fixing block, and the fixing block is provided with a through opening matched with the clamping rod.

[0016] Preferably, a connecting block is fixedly connected to the surface of the ruler, a groove matching the pull-out rod is formed on one side of the connecting block, a first magnetic block is fixedly connected to the other end face of the pull-out rod, and a second magnetic block attracted to the first magnetic block is fixedly connected to the other side face of the inner wall of the groove.

[0017] Beneficial Effects

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) After the ruler and the protractor are connected as a whole through the limit rod, when drawing a sector chart, the ruler can be bent to 90 degrees through the movable connection of the limit rod. After the center convex block is in contact with the paper surface, the pencil is placed inside the insertion hole with the center convex block as the center of the circle, and rotated in a counterclockwise direction to draw an arc. By adjusting the position of the protractor, the pencil can be made to circle around once to draw a circle, which is convenient for drawing a sector chart. The pencil can be placed inside the insertion hole at different positions to draw circles of different radii. The operation is simple and convenient to draw a circle, and then the corresponding sector chart can be drawn through calculation and the protractor.

[0020] (2) After the ruler and the protractor are connected as a whole through the limit rod, when drawing a line graph, the ruler is bent to 90 degrees and the coordinates of the line graph can be completed using the ruler. Then, by positioning the other end of the protractor and making the bottom of the protractor equal to the length of the ruler, the line graph can be drawn according to the intersection of the two straight lines. This makes it convenient to draw points corresponding to the horizontal and vertical coordinates, which is accurate and efficient without the need to draw auxiliary lines.

[0021] (3) After the ruler and the protractor are connected as a whole through the limit rod, when drawing a bar graph, the bar graph can be drawn by the ruler. Only one tool is needed to draw a variety of statistical graphs at the same time. Fewer tools are needed, and the drawing of statistical graphs is more convenient, which is conducive to the drawing and use of statistical graphs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front cross-sectional structural schematic diagram of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the protractor and the ruler in the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the ruler and the insertion hole in the present invention;

[0025] Figure 4 For the present invention Figure 1 A partial enlarged view of the middle part;

[0026] Figure 5 For the present invention Figure 3 A partial enlarged view of point B in the middle.

[0027] In the figure: 1. protractor; 2. limit rod; 3. ruler; 4. elastic pad; 5. arc protrusion; 6. special-shaped hole; 7. triangular protrusion; 8. accommodating box; 9. connecting plate; 10. fixing ring; 11. movable opening; 12. clamping rod; 13. fixing block; 14. through opening; 15. pull-out rod; 16. connecting block; 17. first magnetic block; 18. groove; 19. second magnetic block; 20. insertion hole; 21. cylinder; 22. limit plate; 23. center protrusion; 24. positioning block; 25. bolt; 26. threaded hole. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] See also Figure 1-3 The present invention provides a technical solution: an integrated statistical drawing ruler, comprising a protractor 1 and a ruler 3; one end of the rear side surface of the ruler 3 is rotatably connected to one end of the bottom of the front side surface of the protractor 1 through a limit rod 2, and one end of the bottom of the front side surface of the protractor 1 and one end of the rear side surface of the ruler 3 are both provided with an insertion hole 20 adapted to the limit rod 2.

[0030] The two ends of the limit rod 2 extend to the front side of the ruler 3 and the rear side of the protractor 1 through the two insertion holes 20 respectively. The rear end of the limit rod 2 is fixedly connected to the limit plate 22, and the rear side of the limit plate 22 is fixedly connected with a center bump 23.

[0031] A positioning block 24 is detachably provided at the front end of the limiting rod 2, and a bolt 25 is fixedly connected to the rear side of the positioning block 24. A threaded hole 26 matching the bolt 25 is opened at the front end surface of the limiting rod 2, and the bolt 25 is threadedly connected to the inside of the threaded hole 26.

[0032] When one of the protractor 1 or the ruler 3 is damaged, the positioning block 24 can be twisted to drive the bolt 25 to rotate, and the bolt 25 can be removed from the inside of the threaded hole 26. The positioning block 24 can be removed from the front end of the limit rod 2, and the limit rod 2 can be removed from the inside of the insertion hole 20. The connection between the protractor 1 and the ruler 3 is released, which is convenient for disassembly and replacement of the damaged parts, or the intact parts can be used separately.

[0033] A plurality of insertion holes 20 are formed on the front side of the ruler 3 , and the rear side of the inner wall of the insertion hole 20 extends to the rear side of the ruler 3 . The plurality of insertion holes 20 are evenly spaced and arranged along the length direction of the ruler 3 .

[0034] After the ruler 3 and the protractor 1 are connected as a whole through the limit rod 2, when drawing a sector chart, the ruler 3 can be bent to 90 degrees through the movable connection of the limit rod 2, and after the center convex block 23 is in contact with the paper surface, the pencil is placed inside the insertion hole 20 with the center convex block 23 as the center of the circle, and rotated in a counterclockwise direction to draw an arc. By adjusting the position of the protractor 1, a circle can be drawn after the pencil is circled once, which is convenient for drawing a sector chart, and the pencil can be placed inside the insertion hole 20 at different positions to facilitate drawing circles of different radii. The operation is simple and convenient to draw a circle, and then the corresponding sector chart can be drawn through calculation and the protractor 1.

[0035] The length of the ruler 3 is equal to the bottom length of the protractor 1 . When the ruler 3 is rotated to overlap with the protractor 1 , the rear side surface of the ruler 3 contacts the front side surface of the protractor 1 .

[0036] When drawing a line graph, bend the ruler 3 to 90 degrees, and use the ruler 3 to complete the coordinates of the line graph. Then, by positioning the other end of the protractor 1 and making the bottom of the protractor 1 equal to the length of the ruler 3, you can draw the line graph according to the intersection of the two straight lines, as shown in the figure. Figure 2 , it is convenient to draw points corresponding to the horizontal and vertical coordinates, which is accurate and efficient, and there is no need to draw auxiliary lines.

[0037] When drawing a bar graph, the ruler 3 can be used to complete the drawing of the bar graph. Only one tool is needed to complete the drawing of multiple statistical graphs at the same time. Fewer tools are needed, and the drawing of statistical graphs is more convenient, which is conducive to the drawing and use of statistical graphs.

[0038] Furthermore, a plurality of arc convex blocks 5 are fixedly connected to the surface of the ruler 3 , and the plurality of arc convex blocks 5 are evenly spaced and arranged along the length direction of the ruler 3 .

[0039] In this embodiment, the plurality of arc protrusions 5 facilitate the user to draw wavy lines during the drawing process.

[0040] Furthermore, a plurality of triangular protrusions 7 are fixedly connected to the other end surface of the ruler 3 , and the plurality of triangular protrusions 7 are evenly spaced and arranged along the width direction of the ruler 3 .

[0041] In this embodiment, the plurality of arc protrusions 5 facilitate the user to draw a sawtooth line during the drawing process.

[0042] Furthermore, a plurality of special-shaped holes 6 are formed on the surface of the protractor 1. The special-shaped holes 6 include circular, equilateral triangle and square.

[0043] In this embodiment, the plurality of arc convex blocks 5 facilitate the user to draw different small graphics during the drawing process.

[0044] Furthermore, a cylinder 21 is detachably threadedly connected to the interior of an insertion hole 20 , and an elastic pad 4 is fixedly connected to the inner wall surface of the cylinder 21 .

[0045] In this embodiment, the cylinder 21 can be installed in the insertion hole 20 at different positions by twisting the cylinder 21. The cylinder 21 is convenient for increasing the release area between the pencil and the ruler 3, which is beneficial for the pencil to move the ruler 3 more smoothly to draw an arc.

[0046] Furthermore, one end of the bottom of the front side of the protractor 1 is fixedly connected to a storage box 8, the inner cavity of the storage box 8 can slide in the horizontal direction and is vertically provided with a connecting plate 9, the top of the connecting plate 9 can be pulled out to extend to the outside of the storage box 8, the top of the connecting plate 9 is fixedly connected to a fixing ring 10, one side of the connecting plate 9 is laterally fixedly connected to a clamping rod 12, the other end of the clamping rod 12 can be pulled out to extend to the outside of the storage box 8, the other side of the connecting plate 9 is laterally fixedly connected to a pulling rod 15, the other end of the pulling rod 15 can be pulled out to extend to the outside of the storage box 8.

[0047] In this embodiment, a movable opening 11 for the connection plate 9 to move is opened transversely on the top of the storage box 8. The drawing staff can hold the fixing ring 10 and push and pull the connection plate 9 to move, thereby driving the clamping rod 12 and the pulling rod 15 to move in different directions.

[0048] Furthermore, a fixing block 13 is fixedly connected to one end surface of the ruler 3 , and a through hole 14 matching with the clamping rod 12 is formed on the fixing block 13 .

[0049] In this embodiment, when the ruler 3 is rotated to a vertical state forming a 90-degree angle with the bottom of the protractor 1, the fixing block 13 is driven to move, so that the through-hole 14 is moved to a position corresponding to the clamping rod 12. The drawing personnel can then push the connecting plate 9 to move toward one end, and the clamping rod 12 is extended and inserted into the through-hole 14, so that the vertical state of the ruler 3 and the protractor 1 can be fixed at a 90-degree angle, thereby avoiding positional displacement of the ruler 3 during the drawing process and improving the drawing quality.

[0050] Furthermore, a connecting block 16 is fixedly connected to the surface of the ruler 3, a side surface of the connecting block 16 is provided with a groove 18 adapted to the pull-out rod 15, the other end surface of the pull-out rod 15 is fixedly connected to a first magnetic block 17, and the other side surface of the inner wall of the groove 18 is fixedly connected to a second magnetic block 19 attracted to the first magnetic block 17.

[0051] In this embodiment, when the ruler 3 rotates to a horizontal state overlapping with the protractor 1, the connecting block 16 is driven to move, so that the groove 18 moves to a position corresponding to the pull-out rod 15. The drawing personnel can push the connecting plate 9 to move to the other end, and the pull-out rod 15 is extended and inserted into the interior of the groove 18. After the first magnetic block 17 and the second magnetic block 19 attract each other, the ruler 3 can be fixed in a horizontal state when overlapping with the protractor 1, thereby reducing the occupied area and facilitating manual carrying during drawing.

[0052] Working principle and use process of the present invention: After the present invention is installed, the ruler 3 and the protractor 1 are connected as a whole through the limit rod 2. When drawing a sector chart, the ruler 3 can be bent to 90 degrees through the movable connection of the limit rod 2, and the center convex block 23 is used to contact the paper surface. Then, with the center convex block 23 as the center of the circle, a pencil is placed inside the insertion hole 20 and rotated in a counterclockwise direction to draw an arc. By adjusting the position of the protractor 1, the pencil can be rotated in a circle. , a circle can be drawn, which is convenient for drawing a pie chart, and a pencil can be placed inside the insertion hole 20 at different positions to facilitate drawing circles of different radii. When drawing a line graph, after bending the ruler 3 to 90 degrees, the coordinates of the line graph can be completed using the ruler 3, and then the other end of the protractor 1 is positioned and the bottom of the protractor 1 is equal to the length of the ruler 3. According to the intersection of the two straight lines, a line graph can be drawn. When drawing a bar graph, the bar graph can be drawn by the ruler 3.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An integrated statistical chart ruler, characterized in that: It comprises a protractor (1) and a ruler (3); One end of the rear side surface of the ruler (3) is rotatably connected to one end of the bottom of the front side surface of the protractor (1) through a limiting rod (2); one end of the bottom of the front side surface of the protractor (1) and one end of the rear side surface of the ruler (3) are both provided with insertion holes (20) adapted to the limiting rod (2); two ends of the limiting rod (2) extend to the front side surface of the ruler (3) and the rear side surface of the protractor (1) through the inside of the two insertion holes (20), respectively; the rear end of the limiting rod (2) is fixedly connected to a limiting plate (22), and the rear side surface of the limiting plate (22) is fixedly connected to a center projection (23); The front end of the limiting rod (2) is detachably provided with a positioning block (24), the rear side of the positioning block (24) is fixedly connected with a bolt (25), the front end surface of the limiting rod (2) is provided with a threaded hole (26) adapted to the bolt (25), and the bolt (25) is threadedly connected to the inside of the threaded hole (26); The front side of the ruler (3) is provided with a plurality of insertion holes (20), the rear side of the inner wall of the insertion hole (20) extends to the rear side of the ruler (3), and the plurality of insertion holes (20) are evenly spaced and arranged along the length direction of the ruler (3); The length of the ruler (3) is equal to the bottom length of the protractor (1); when the ruler (3) is rotated to overlap with the protractor (1), the rear side of the ruler (3) contacts the front side of the protractor (1); a storage box (8) is fixedly connected to one end of the bottom of the front side of the protractor (1); a connecting plate (9) is vertically arranged in the inner cavity of the storage box (8) which can slide in the horizontal direction; the top of the connecting plate (9) can be pulled out to the outside of the storage box (8); a fixing ring (10) is fixedly connected to the top of the connecting plate (9); a clamping rod (12) is transversely fixedly connected to one side of the connecting plate (9); the other end of the clamping rod (12) can be pulled out to the outside of the storage box (8); a pull-out rod (15) is transversely fixedly connected to the other side of the connecting plate (9); the other end of the pull-out rod (15) can be pulled out to the outside of the storage box (8); A fixing block (13) is fixedly connected to one end surface of the ruler (3), and a through hole (14) adapted to the clamping rod (12) is provided on the fixing block (13); A connecting block (16) is fixedly connected to the surface of the ruler (3); a groove (18) matching the pull-out rod (15) is provided on one side of the connecting block (16); a first magnetic block (17) is fixedly connected to the other end surface of the pull-out rod (15); and a second magnetic block (19) attracted to the first magnetic block (17) is fixedly connected to the other side surface of the inner wall of the groove (18).

2. The integrated statistical charting ruler according to claim 1, characterized in that: A plurality of arc convex blocks (5) are fixedly connected to the surface of the ruler (3), and the plurality of arc convex blocks (5) are evenly spaced and arranged along the length direction of the ruler (3).

3. The integrated statistical drawing ruler according to claim 1, characterized in that: A plurality of triangular protrusions (7) are fixedly connected to the other end surface of the ruler (3), and the plurality of triangular protrusions (7) are evenly spaced and arranged along the width direction of the ruler (3).

4. The integrated statistical drawing ruler according to claim 1, characterized in that: The surface of the protractor (1) is provided with a plurality of special-shaped holes (6), wherein the special-shaped holes (6) include circular, equilateral triangle and square.

5. The integrated statistical drawing ruler according to claim 1, characterized in that: A cylinder (21) is detachably threadedly connected to the interior of one of the insertion holes (20), and an elastic pad (4) is fixedly connected to the inner wall surface of the cylinder (21).

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