Multifunctional ruler

Abstract

The utility model discloses a multifunctional ruler which comprises a first measuring structure, a second measuring structure and a third measuring structure which are connected to form an integrated structure, and the first measuring structure is provided with a first edge provided with a first length measuring mark and a second edge provided with a second length measuring mark; the second measuring structure is provided with a first plate, a second plate and a third plate which are connected with one another and surround to form a triangular structure, the outer side of the first plate is connected with the same ends of the first edge and the second edge, and the second plate is arranged in the direction away from the first measuring structure; the third measuring structure is connected with the second plate, and the upper surface of the third measuring structure is provided with an angle measuring mark. The multifunctional ruler can integrate three different measuring structures, and is convenient to carry, simple in structure, convenient to produce, low in cost and high in practicability.

Description

Technical Field

[0001] The utility model relates to the field of scientific and educational tools, in particular to a multifunctional ruler. Background Art

[0002] Scientific and educational tools refer to tools that are used to spread knowledge and use physical objects as carriers, especially rulers, triangles, protractors and other ruler and compass tools. They are indispensable items in youth education activities and scientific research and measurement activities.

[0003] In teaching activities, since traditional scientific and educational tools have a single function, in order to facilitate the replacement of tools or combined use, a large number of tools need to be used, which is inconvenient to carry. Summary of the invention

[0004] The utility model aims at the deficiencies of the prior art and provides a multifunctional ruler.

[0005] The utility model provides a multifunctional ruler, comprising a first measuring structure, a second measuring structure and a third measuring structure, wherein the first measuring structure, the second measuring structure and the third measuring structure are connected to form an integrated structure, wherein: the first measuring structure has a first edge and a second edge that are parallel to each other, a first length measurement mark is arranged on the first edge, and a second length measurement mark having a measurement unit different from that of the first length measurement mark is arranged on the second edge; the second measuring structure has a first plate, a second plate and a third plate that are connected to each other, the first plate, the second plate and the third plate are surrounded to form a triangular structure, the outer side of the first plate is respectively connected to the same end of the first edge and the second edge, and the second plate is arranged in a direction away from the first measuring structure; the third measuring structure is connected to a side of the second plate away from the first measuring structure, and an angle measurement mark arranged along an arc is arranged on the upper surface of the third measuring structure, and the arc protrudes in a direction away from the first measuring structure.

[0006] Preferably, a circular through hole is provided on the third measurement structure, and the angle measurement marks are arranged in an arc shape around the outer circumference of the circular through hole.

[0007] Preferably, the third plate is vertically connected to the second plate, a strip through hole is provided between the second plate and the third measuring structure, the strip through hole is arranged parallel to the outer edge of the second plate, and a third length measurement mark is provided on the outer edge of the second plate.

[0008] Preferably, a fourth length measurement mark is provided on the side edge of the strip-shaped through hole opposite to the second plate.

[0009] Preferably, a strip through hole is provided between the first measuring structure and the first plate structure, and the strip through hole is arranged parallel to the outer edge of the first plate. Both ends of the strip through hole are set to be closed, which are respectively used for connecting the first plate with the first measuring structure and connecting the first plate with the third measuring structure; one end of the strip through hole close to the third plate is set to be an opening, and one end of the strip through hole far from the third plate is set to be a closed end, which is used for connecting the second plate with the third measuring structure.

[0010] Preferably, a plurality of equally spaced marks are arranged between the circular through hole and the angle measurement mark on the upper surface of the third measurement structure and around the circular through hole, and the angle measurement marks are arranged in a semicircle around the through hole.

[0011] Preferably, the third measurement structure is configured in a semicircular shape at one end away from the first measurement structure, and a fifth length measurement mark is arranged along an outer edge of an upper surface of the third measurement structure.

[0012] Preferably, it further includes a fourth measurement structure, which is respectively connected to the third measurement structure and the side of the first measurement structure away from the second measurement structure; at least one arc-shaped edge is provided on the fourth measurement structure, and a sixth length measurement mark is provided on the upper surface of the fourth measurement structure along the arc-shaped edge.

[0013] Preferably, the length direction of the first measurement structure is arranged along the radial direction of the circular through hole, the distance between one end of part of the second measurement structure and part of the third measurement structure arranged on the same side of the first measurement structure away from the first edge and the first edge is basically the same, the distance between one end of part of the fourth measurement structure and part of the third measurement structure arranged on the same side of the first measurement structure away from the second edge and the second edge is basically the same, and the length occupied by the third measurement structure in the width direction of the first measurement structure is 4-6 times the width of the first measurement structure.

[0014] Preferably, the first measuring structure is provided with a plurality of equally spaced auxiliary through holes along the first edge direction, or the third measuring structure is provided with a plurality of auxiliary through holes of different shapes, or the upper surface of the third measuring structure is provided with a plurality of groups of angle measurement marks with specific different graduation values ​​arranged in an arc shape around the outer circumference of the circular through holes.

[0015] The multifunctional ruler disclosed in the utility model integrates three different measuring structures, namely, a first measuring structure, a second measuring structure and a third measuring structure, so that the multifunctional ruler integrates three different measuring structures into one, thereby being convenient to carry, and the first measuring structure, the second measuring structure and the third measuring structure are connected to form an integrated structure, thereby simplifying the structure, facilitating production and having low cost. In addition, the multifunctional ruler can realize the auxiliary drawing of a straight line through the first edge and the second edge of the first measuring structure, realize the length measurement of two different measuring units through the first length measurement mark on the first edge and the second length measurement mark on the second edge, realize the auxiliary drawing of three preset angle straight lines and the angle measurement of three preset angles through the first plate, the second plate and the third plate forming a triangular structure, realize the angle measurement of multiple unfixed angles through the angle measurement mark on the third measuring structure, so that the multifunctional ruler has the measurement functions of two lengths, three preset angles and multiple unfixed angles, as well as the auxiliary drawing of a specific length straight line, an arc and three preset angle straight lines, and other multiple functions, and can be applied to various teaching activities, achieving the effect of one object for multiple uses, and having strong practicality. In addition, the first edge and the second edge are arranged parallel to each other and can be used as a long handle for convenient holding during measurement or auxiliary drawing. The outer sides of the first plate are respectively connected to the same end of the first edge and the second edge, and the second plate is arranged in a direction away from the first measuring structure, that is, the second measuring structure is arranged at one end in the length direction of the first measuring structure and the arrangement direction of the second plate is arranged at an angle to the width direction of the first measuring structure, thereby reducing the occupied length of the second measuring structure in the width direction of the first measuring structure. The third measuring structure is connected to the side of the second plate away from the first measuring structure, and the angle measurement mark is arranged along an arc and the arc protrudes in a direction away from the first measuring structure, which can reduce the occupied length of the third measuring structure in the length direction of the first measuring structure while reducing the occupied length of the third measuring structure in the width direction of the first measuring structure, so that the multifunctional ruler integrates various parts compactly, reduces space occupation, and is further convenient to carry. The overall structural design is simple, ingenious, and highly practical.

[0016] Two length measurement marks of different measurement units are arranged on the two edges of the first measurement structure, a triangulation structure is arranged on the second measurement structure, and angle measurement marks arranged along an arc are arranged on the third measurement structure, and the arc is made to protrude away from the first measurement structure. This makes the multifunctional ruler have the functions of length measurement, specific angle drawing and angle measurement, and is compact and easy to carry.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0019] Figure 1 The figure is a schematic structural diagram of a multifunctional ruler disclosed in one embodiment of the utility model.

[0020] Figure 2 This is a schematic diagram of a first measurement structure disclosed in an embodiment of the utility model.

[0021] Figure 3 This is a schematic diagram of a second measurement structure disclosed in an embodiment of the utility model.

[0022] Figure 4 This is a schematic diagram of a third measurement structure disclosed in an embodiment of the utility model.

[0023] Figure 5 This is a schematic diagram of a fourth measurement structure disclosed in an embodiment of the utility model.

[0024] Figure 6 This is a schematic diagram of a fifth measurement structure disclosed in an embodiment of the utility model. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0029] Unless otherwise defined, the technical or scientific terms used herein shall have the common meanings understood by persons with ordinary skills in the field to which the utility model belongs. The words "first", "second" and similar words used in the patent application specification and claims of the utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "a" do not indicate a quantity limitation, but indicate the existence of at least one.

[0030] like Figure 1-6As shown, this embodiment discloses a multifunctional ruler, including a first measuring structure 1, a second measuring structure 2 and a third measuring structure 3, wherein the first measuring structure 1, the second measuring structure 2 and the third measuring structure 3 are connected to form an integral structure, wherein the first measuring structure 1 has a first edge 11 and a second edge 12 which are parallel to each other, a first length measurement mark 111 is arranged on the first edge 11, and a second length measurement mark 121 which has a different measurement unit from the first length measurement mark 111 is arranged on the second edge 12. The first length measurement mark 111 and the second length measurement mark 121 have different measurement units, which can be freely selected according to the measurement and drawing requirements, for example, the first length measurement mark 111 can be set to a metric size scale line, and the second length measurement mark 121 can be set to an imperial size scale line, and of course, measurement marks of other measurement units can also be set according to actual needs to enrich the scope of application. The second measuring structure 2 has a first plate 21, a second plate 22 and a third plate 23 connected to each other. The first plate 21, the second plate 22 and the third plate 23 are surrounded to form a triangular structure. The center can be hollowed out to form a right triangle with an angle of 30° and the 30° angle is located between the first plate 21 and the second plate 22. The outer side of the first plate 21 is respectively connected to the same end of the first edge 11 and the second edge 12, and the second plate 22 is arranged in a direction away from the first measuring structure 1. The third measuring structure 3 is connected to the side of the second plate 22 away from the first measuring structure 1. The third measuring structure 3 is provided with an angle measurement mark 31 arranged along an arc, and the arc protrudes in a direction away from the first measuring structure 1. The multifunctional ruler disclosed in this embodiment integrates the three different measuring structures of the first measuring structure 1, the second measuring structure 2 and the third measuring structure 3, so that the multifunctional ruler integrates the three different measuring structures into one, so as to be convenient to carry. The first measuring structure 1, the second measuring structure 2 and the third measuring structure 3 are connected to form an integrated structure, so as to simplify the structure, facilitate production and reduce cost. In addition, the multifunctional ruler can realize auxiliary drawing of straight lines through the first edge 11 and the second edge 12 of the first measuring structure 1, realize length measurement of two different measurement units through the first length measurement mark 111 on the first edge 11 and the second length measurement mark 121 on the second edge 12, realize auxiliary drawing of three preset angle straight lines and angle measurement of three preset angles through the first plate 21, the second plate 22 and the third plate 23 forming a triangular structure, and realize angle measurement of multiple non-fixed angles through the angle measurement mark on the third measuring structure 3, so that the multifunctional ruler has the measurement functions of two lengths, three preset angles and multiple non-fixed angles, as well as the auxiliary drawing of a specific length straight line, an arc and three preset angle straight lines and other functions, can be applied to various teaching activities, achieve the effect of one object for multiple uses, and has strong practicality.In addition, the first edge 11 and the second edge 12 are arranged parallel to each other and can be used as a long handle for convenient holding during measurement or auxiliary drawing. The outer sides of the first plate 21 are respectively connected to the same ends of the first edge 11 and the second edge 12, and the second plate 22 is arranged in a direction away from the first measuring structure 1, that is, the second measuring structure 2 is arranged at one end in the length direction of the first measuring structure 1 and the arrangement direction of the second plate 22 is arranged at an angle to the width direction of the first measuring structure 1, thereby reducing the length occupied by the second measuring structure 2 in the width direction of the first measuring structure 1. The third measuring structure 3 is connected to the side of the second plate 22 away from the first measuring structure 1, and the angle measurement mark is arranged along an arc and the arc protrudes in a direction away from the first measuring structure 1, which can reduce the length occupied by the third measuring structure 3 in the length direction of the first measuring structure 1 while reducing the length occupied by the third measuring structure 3 in the width direction of the first measuring structure 1, so that the multifunctional ruler integrates various parts compactly, reduces space occupation, and is further convenient to carry. The overall structural design is simple, ingenious, and practical.

[0031] In this embodiment, a plurality of equally spaced marks are arranged around the circular through hole between the circular through hole and the angle measurement mark on the upper surface of the third measurement structure, and the angle measurement mark is arranged in a semicircle around the through hole. Specifically, a circular through hole 35 is provided on the upper surface of the third measurement structure 3, and a plurality of equally spaced marks 36 are arranged around the circular through hole 35 between the circular through hole 35 and the angle measurement mark 31. The circular through hole 35 can be used for auxiliary drawing of a circle or for centering when the multifunctional ruler is used as a compass, and can also be used for positioning or hanging the multifunctional ruler. The equally spaced marks 36 can be used for measuring or drawing angles, and the angle measurement mark 31 is arranged in a semicircle around the circular through hole 35. The angle measurement mark 31 is provided with two groups of measurement marks with different accuracies, and the arrangement directions are opposite. The 0 scale line of the measurement mark with a large graduation value is close to the second measurement structure 2, and the 0 scale line of the measurement mark with a small graduation value is close to the fourth measurement structure 4. When measuring an angle or drawing an angle at a fixed point, the protractor reference line 32 coincides with the fixed side of the angle, is set horizontally, a measurement mark with a suitable graduation value is selected, and the corresponding angle marking line is found in the angle measurement mark 31, and the mark is made to complete the angle measurement or the operation of drawing an angle at a fixed point. In another embodiment, measurement marks with different graduation values ​​can be set, or the arrangement direction of the measurement marks can be changed. In this embodiment, the length direction of the first measuring structure 1 is arranged along the radial direction of the circular through hole 35, so that the overall structure has better balance, which is also conducive to the centering of the compass during operation or the stable positioning or hanging of the multi-functional ruler.

[0032] In this embodiment, the third plate 23 is vertically connected to the second plate 22, a strip through hole 34 is provided between the third measuring structure 3 and the second plate 22, and the strip through hole 34 is arranged parallel to the outer edge of the second plate 22. A strip through hole 24 is provided between the first measuring structure 1 and the first plate 21, and the strip through hole 24 is arranged parallel to the outer edge of the first plate 21, which is convenient for drawing a straight line stably, and can reduce the occupied length of the second measuring structure 2 in the width direction of the first measuring structure 1 while ensuring the length measurement function of the second plate 22 and the auxiliary drawing function of the straight line. The strip through hole 34 is arranged parallel to the outer edge of the first plate 21. One end close to the third plate 23 is set as an opening, which is convenient for drawing a long straight line along the outer side of the second plate 22. The end of the strip-shaped through hole 34 away from the third plate 23 is set as a closed end, which is used for connecting the second plate 21 with the third measurement structure 3. Both ends of the strip-shaped through hole 24 are set as closed ends, which are respectively used for connecting the first plate 21 with the first measurement structure 1 and the first plate 21 with the third measurement structure 3. The structural design is ingenious, which ensures the measurement and auxiliary drawing functions of the second measurement structure 2 while also ensuring the stability of the connection between the second measurement structure 2 and the first measurement structure 1 and the third measurement structure 3. A fourth length measurement mark 341 is provided on the edge of the side opposite to the second plate 22. The fourth length measurement mark 341 is set as a mark with the same measurement unit as the third length measurement mark 221, which is convenient for accurately determining the measurement length or straight line drawing length from both sides of the strip-shaped through hole 34. In another embodiment, the fourth length measurement mark 341 may be set to a mark having a different measurement unit from the first length measurement mark 111 , the second length measurement mark 121 , and the third length measurement mark 221 to enrich the scope of application.

[0033] In this embodiment, a fourth measurement structure 4 is also included, and the fourth measurement structure 4 is respectively connected to the third measurement structure 3 and the side of the first measurement structure 1 away from the second measurement structure 2. That is to say, the third measurement structure 3 is basically arranged at one end of the length direction of the first measurement structure 1, and the second measurement structure 2 and the fourth measurement structure 4 are basically arranged on both sides of the length direction of the first measurement structure 1, respectively, and the overall balance is good.

[0034] In this embodiment, a first arc-shaped edge structure 41 formed by connecting multiple arc-shaped edges in sequence is provided on the fourth measurement structure 4, and a sixth length measurement mark 44 is provided on the upper surface of the fourth measurement structure 4 along the arc-shaped edge. One end of the first arc-shaped edge structure 41 is connected to the second edge 12 by a second arc-shaped edge structure 42, and the other end of the first arc-shaped edge structure 41 is connected to one end of the circumferential side wall of the third measurement structure 3 by a third arc-shaped edge structure 43. The sixth length measurement mark 44 extends from both ends of the first arc-shaped edge structure 41 to the second arc-shaped edge structure 42 and the third arc-shaped edge structure 43, respectively, so that the measurement and drawing of multiple curves and arcs can be realized. In this embodiment, four edges with different curvatures are provided on the fourth measurement structure 4. Of course, in other embodiments, the fourth measurement structure can also be provided with only one, two, three arc-shaped edges or five, six or even more arc-shaped edges, which can also realize the measurement and drawing of curves and arcs. When measuring the length of an arc or drawing an arc, place the tool horizontally, select a marking area that is suitable for the curvature of the target arc, find the corresponding marking line for marking, and then draw the arc. If the measurement range of the marking line does not meet the drawing requirements, the tool can be rotated to continue drawing. In another embodiment, the hollowed-out area in the fourth measurement structure 4 can also be provided with a measurement mark to enrich the scope of application.

[0035] In this embodiment, the third measurement structure 3 is set to be semicircular at one end away from the first measurement structure 1, and a fifth length measurement mark 45 is arranged along the outer edge of the upper surface of the third measurement structure 3, which has the same function as the sixth length measurement mark 44, but has a fixed arc and a wider measurement mark range, and can be used in conjunction. In another embodiment, the fifth length measurement mark 45 can also be set to a third group of angle measurement marks with different graduation values ​​from the two groups of marks in the angle measurement mark 31.

[0036] In this embodiment, a fifth measuring structure 5 is integrally provided on one end of the first measuring structure 1 away from the second measuring structure 2. The fifth measuring structure 5 has a straight edge 51 and a curved edge 52 connected to the straight edge 51, and can be used for auxiliary drawing of straight lines, curves, and arcs. The fifth measuring structure is also penetrated by a plurality of through holes 53 arranged at equal intervals, which can be used for positioning of drawing a circle when the multifunctional ruler is used as a circular rail.

[0037] In this embodiment, the multifunctional ruler as a whole forms a structure similar to a guitar, which increases the interest of the multifunctional ruler. Of course, in other embodiments, the structure can also be set to other shapes to enrich its interest.

[0038] In this embodiment, the distance between the end away from the first edge and the part of the second measurement structure 2 and the part of the third measurement structure 3 arranged on the same side of the first measurement structure 1 is basically the same, the distance between the end away from the second edge 12 and the part of the fourth measurement structure 4 and the part of the third measurement structure 3 arranged on the same side of the first measurement structure 1 is basically the same, and the length occupied by the third measurement structure 3 in the width direction of the first measurement structure 1 is 4-6 times, especially 5 times, the width of the first measurement structure 1. The vertical distance between the end of the second measuring structure 2 away from the first edge 11 and the first edge 11 is substantially the same as the vertical distance between the end of the fourth measuring structure 4 away from the second edge 12 and the second edge 12, which is beneficial to balancing the weight on both sides of the multifunctional ruler. The vertical distance between the end of the second measuring structure 2 away from the third measuring structure 3 and the third measuring structure 3 is substantially the same as the vertical distance between the end of the fourth measuring structure 4 away from the third measuring structure 3 and the third measuring structure 3. The angle between the first plate 21 and the first edge 11 is 10° to 50°, especially 20° to 40°, especially 35°. The angle between the fourth measuring structure 4 and the second edge 21 is 10° to 50°, especially 20° to 40°, especially 25°, which is beneficial to shortening the length of the overall structure of the multifunctional ruler in the width direction of the first measuring structure, reducing the width of the floor space, and facilitating carrying. At the same time, it is beneficial to balancing the weight on both sides of the multifunctional ruler and improving the balance.

[0039] In this embodiment, a plurality of auxiliary through holes 14 are provided in the center of the first measuring structure 1, and the plurality of auxiliary through holes 14 are arranged equidistantly, and the arrangement direction is parallel to the direction of the first edge 11. A compass reference line 15 is provided on both sides of the plurality of auxiliary through holes 14, which is parallel to the two edges of the first measuring structure 1 and closely fits the plurality of auxiliary through holes 14. In order to facilitate drawing circles of different radii, the center position of the fixed auxiliary tool mounting hole 13 is kept unchanged, and the pen is passed through the corresponding auxiliary through hole 14 to the rear side of the first measuring structure 1, and the first measuring structure 1 is rotated to draw circles of different radii. In another embodiment, the intervals between the plurality of auxiliary through holes 14 can be adjusted, or a plurality of groups of auxiliary through holes 14 with different arrangement intervals can be set. In addition, the compass reference line 15 can be provided with a measurement mark, which is more convenient for determining the radius of the circle, or the radius through hole can be provided close to the first length measurement mark 111 and the second length measurement mark 121.

[0040] In this embodiment, a plurality of auxiliary holes 6 are provided through the third measurement structure 3. When drawing a polygon, first select a suitable shape, draw an angle, select the target required length measurement mark to extend the two sides, and then use the model to draw the angle adjacent to the first angle, and repeat the above steps until all the sides are connected into a closed loop. In another embodiment, the model can also be set to other shapes, and each auxiliary hole can be set to various polygonal structures such as triangles, squares, rectangles, rhombuses, parallelograms, regular pentagons, regular hexagons, or circular structures or irregular shapes, so as to facilitate the drawing of these preset shapes to enrich the scope of application.

[0041] In this embodiment, when using the second measurement structure 2 to draw a right angle, the third length measurement mark 221 on the second plate 22 is placed horizontally, a right angle side is drawn, and another right angle side is drawn along the third plate 23 to complete the right angle drawing. Then, the third length measurement mark 221 is aligned with the two right angle sides respectively, and the corresponding marking line is found. The right angle side is extended, and the vertices of the two right angle sides are connected to draw a right triangle with a fixed right angle side. This process can also be used to verify the Pythagorean theorem. In another embodiment, the angles formed by the second plate 22 and the third plate 23 and the first plate 21 can also be set to 45°, so as to facilitate the production of an isosceles right triangle.

[0042] In this embodiment, a sealed strip-shaped through hole is provided at the connection between the second measurement structure 2 and the first measurement structure 1, so that a 30° angle and a 60° angle can be conveniently drawn. In another embodiment, the strip-shaped through hole may not be provided, and the hollowed-out area in the center of the three plates of the second measurement structure 2 may be used to draw a special angle.

[0043] In this embodiment, the first plate 21 and the third plate 23 of the second measurement structure 2 are respectively provided with two sets of parallel lines of different densities, which can be used as reference lines for detecting whether multiple lines or edges are parallel. In another embodiment, parallel lines of other densities can also be set to enrich the scope of application.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the various embodiments of the utility model.

[0045] In short, the above is only a preferred embodiment of the present utility model, and all equivalent changes and modifications made according to the scope of the patent application of the present utility model should fall within the scope of the present utility model patent.

Claims

1. A multifunctional ruler, characterized in that: include: A first measurement structure, a second measurement structure and a third measurement structure, wherein the first measurement structure, the second measurement structure and the third measurement structure are connected to form an integrated structure, wherein: A first measurement structure having a first edge and a second edge parallel to each other, a first length measurement mark being arranged on the first edge, and a second length measurement mark having a measurement unit different from that of the first length measurement mark being arranged on the second edge; The second measuring structure comprises a first plate, a second plate and a third plate connected to each other, wherein the first plate, the second plate and the third plate are surrounded to form a triangular structure, the outer side of the first plate is respectively connected to the same end of the first edge and the second edge, and the second plate is arranged in a direction away from the first measuring structure; The third measuring structure is connected to the side of the second plate away from the first measuring structure. The upper surface of the third measuring structure is provided with angle measuring marks arranged along an arc, and the arc protrudes in a direction away from the first measuring structure.

2. The multifunctional ruler according to claim 1, characterized in that: The third measuring structure is provided with a circular through hole, and the angle measurement marks are arranged in an arc shape around the outer circumference of the circular through hole.

3. The multifunctional ruler according to claim 1, characterized in that: The third plate is vertically connected to the second plate, a strip through hole is provided between the second plate and the third measuring structure, the strip through hole is arranged parallel to the outer edge of the second plate, and a third length measurement mark is provided on the outer edge of the second plate.

4. The multifunctional ruler according to claim 3, characterized in that: A fourth length measurement mark is provided on the side edge of the strip-shaped through hole opposite to the second plate.

5. The multifunctional ruler according to claim 3, characterized in that: A strip through hole is provided between the first measuring structure and the first plate structure, and the strip through hole is arranged parallel to the outer edge of the first plate. Both ends of the strip through hole are set to be closed, which are respectively used for connecting the first plate with the first measuring structure and connecting the first plate with the third measuring structure; one end of the strip through hole close to the third plate is set to be open, and one end of the strip through hole far from the third plate is set to be closed, which is used for connecting the second plate with the third measuring structure.

6. The multifunctional ruler according to claim 2, characterized in that: A plurality of equally spaced marks are arranged between the circular through hole and the angle measurement mark on the upper surface of the third measurement structure and around the circular through hole, and the angle measurement marks are arranged in a semicircle around the through hole.

7. The multifunctional ruler according to any one of claims 1 to 6, characterized in that: The third measurement structure is configured in a semicircular shape at one end away from the first measurement structure, and a fifth length measurement mark is arranged along the outer edge of the upper surface of the third measurement structure.

8. The multifunctional ruler according to any one of claims 1 to 6, characterized in that: It also includes a fourth measurement structure, which is respectively connected to the third measurement structure and the side of the first measurement structure away from the second measurement structure; at least one arc-shaped edge is arranged on the fourth measurement structure, and a sixth length measurement mark is arranged on the upper surface of the fourth measurement structure along the arc-shaped edge.

9. The multifunctional ruler according to claim 8, characterized in that: The length direction of the first measurement structure is arranged along the radial direction of the circular through hole, the distance between one end of part of the second measurement structure and part of the third measurement structure arranged on the same side of the first measurement structure and away from the first edge and the first edge is basically the same, the distance between one end of part of the fourth measurement structure and part of the third measurement structure arranged on the same side of the first measurement structure and away from the second edge and the second edge is basically the same, and the length occupied by the third measurement structure in the width direction of the first measurement structure is 4-6 times the width of the first measurement structure.

10. The multifunctional ruler according to any one of claims 1 to 6, characterized in that: The first measuring structure is provided with a plurality of equally spaced auxiliary through holes along the first edge direction, the third measuring structure is provided with a plurality of auxiliary through holes of different shapes, and the upper surface of the third measuring structure is provided with a plurality of groups of angle measurement marks of specific different graduation values ​​arranged in an arc shape around the outer circumference of the circular through holes.

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