Adjustable mathematical tool ruler

Abstract

The utility model relates to the technical field of mathematical rulers, in particular to an adjustable mathematical tool ruler which comprises a ruler body, a triangular groove, a rectangular groove and a circular groove, the triangular groove is formed in the ruler body, the rectangular groove is formed in the ruler body and located on one side of the triangular groove, and the circular groove is formed in the ruler body and located on the side, away from the triangular groove, of the rectangular groove. And one side of the inner wall of the triangular groove is rotationally connected with a first triangular rod. The multifunctional ruler has the beneficial effects that by adjusting the sizes in the triangular groove, the rectangular groove and the circular groove, triangles, rectangles and circles can be adjusted into different angles and lengths, so that the multifunctional ruler has a wide application range, and can be used for measuring angles of right triangles, drawing parallel lines or drawing circles with different sizes; the tool ruler can meet different measuring and drawing requirements, and compared with a traditional device, the working quality and the use efficiency are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mathematical rulers, in particular to an adjustable mathematical tool ruler. Background Art

[0002] Mathematical ruler is a common measuring tool, widely used in mathematics, geometry and engineering. It is one of the indispensable tools in mathematics learning and engineering measurement, which can help us to accurately measure and draw straight line segments, angles and lengths.

[0003] After searching, a Chinese patent discloses an adjustable angle teaching mathematical triangle ruler (authorization announcement number CN208774361U), which includes a ruler, first scale lines are fixedly arranged on the outer surfaces of the upper and lower ends of the ruler, one end of the ruler is rotatably connected to a first movable ruler through a first rotating mechanism, a sliding rod is fixedly arranged on the upper end of the first movable ruler, a connecting seat is fixedly arranged on the end of the ruler away from the first rotating mechanism, a second movable ruler is rotatably connected to the upper end of the connecting seat through a second rotating mechanism, a fixing screw is fixedly arranged on the surface of one end of the second movable ruler close to the second rotating mechanism, a second scale line is fixedly arranged on the outer surface of one side of the second movable ruler, an angle plate is fixedly arranged on the outer side of the second rotating mechanism and located on the upper end of the connecting seat, although the above patent technology can be adjusted to draw a triangle of any angle, it will not loosen during the drawing process and can be bent for easy carrying;

[0004] However, in the actual application of this patented technology, during the teaching process, it is necessary to use a tool ruler to draw triangles, rectangles and circles. The above-mentioned device can only draw triangular shapes. Geometry not only involves triangles, but also includes other important geometric concepts, such as squares, circles, polygons, etc. Utility Model Content

[0005] In view of the problem that the prior art can only draw triangles, the main purpose of the utility model is to provide an adjustable mathematical tool ruler.

[0006] The technical solution of the utility model is as follows: an adjustable mathematical tool ruler, comprising a ruler body, a triangular groove, a rectangular groove and a circular groove, wherein the triangular groove is opened inside the ruler body, the rectangular groove is opened inside the ruler body and is located on one side of the triangular groove, the circular groove is opened inside the ruler body and is located on a side of the rectangular groove away from the triangular groove, one side of the inner wall of the triangular groove is rotatably connected with a first triangular rod, the inner wall of the triangular groove and one side of the first triangular rod is rotatably connected with a second triangular rod, the first triangular rod is used in conjunction with the second triangular rod, the inside of the rectangular groove is slidably connected with the first rectangular rod, the inside of the rectangular groove is slidably connected with the second rectangular rod, the first rectangular rod is used in conjunction with the second rectangular rod, the inner wall of the circular groove is fixedly connected with a support rod, and one end of the support rod is rotatably connected with an angle rod.

[0007] Through the above technical solution, the mathematical tool ruler not only has the basic measuring body of the ruler, but also specially designed diversified measuring grooves such as triangular grooves, rectangular grooves and circular grooves, so that it can meet the measurement needs of various shapes and sizes. The triangular groove can measure triangular or conical objects, while the rectangular groove is suitable for measuring rectangular or square objects. The length and width can be flexibly adjusted. The circular groove can be used to measure round or cylindrical objects. The support rod designed inside can effectively prevent the object from sliding or deforming during the measurement process.

[0008] As a preferred embodiment, a first through slot is formed inside the first triangular rod, and a second through slot is formed inside the second triangular rod. The first through slot and the second through slot are adjusted by screws.

[0009] Through the above technical solution, a first through slot is delicately opened inside the first triangular rod to achieve precise adjustment, and a second through slot is also opened inside the second triangular rod to accommodate the adjustment of the screw. The screw slides precisely between the two through slots, thereby achieving precise adjustment of the two triangular rods.

[0010] As a preferred embodiment, a first limiting groove is opened on both sides of the inner wall of the rectangular groove, and both ends of the first rectangular rod are slidably connected to the first limiting groove, and a second limiting groove is opened on both sides of the inner wall of the rectangular groove and at a ninety-degree angle to the first limiting groove, and both ends of the second rectangular rod are slidably connected to the second limiting groove, a third through groove is opened inside the first rectangular rod, and the second rectangular rod passes through the third through groove, and the first rectangular rod and the second rectangular rod are adjusted by screws.

[0011] Through the above technical solution, the first rectangular rod and the second rectangular rod are adjusted by screws, so that the relative position between the first rectangular rod and the second rectangular rod can be adjusted as needed.

[0012] As a preferred implementation manner, through holes are equidistantly formed inside the angle rod, and the end of the angle rod intersecting with the support rod is adjusted by a screw.

[0013] Through the above technical solution, the end where the angle rod intersects with the support rod can be conveniently and reliably adjusted, and the screws can stably fix the angle between the angle rod and the support rod, thereby ensuring the stability and accuracy of the equipment.

[0014] As a preferred embodiment, a length scale is provided on one side of the ruler body, and a wave scale is provided on the side of the ruler body away from the length scale.

[0015] Through the above technical solution, the length scale facilitates users to perform accurate measurements, and the wave scale enables users to observe and read the scale more easily.

[0016] As a preferred embodiment, two distance scales are provided at the top of the ruler body and at two sides of the rectangular groove at an angle of 90 degrees.

[0017] Through the above technical solution, according to the adjustment of the distance scale, it is possible to clearly know the size of the drawn rectangle.

[0018] As a preferred embodiment, an angle scale is provided on the top of the ruler body and outside the circular groove, and one end of the angle rod away from the support rod is used in conjunction with the angle scale.

[0019] Through the above technical solution, when measuring the angle, one end of the angle rod points to the angle scale, so that the operator can easily understand the size of the angle.

[0020] Compared with the prior art, the advantages and positive effects of the utility model are:

[0021] In the utility model, the device can adjust the sizes of the triangular groove, the rectangular groove and the circular groove, so that the triangle, rectangle and circle can be adjusted to different angles and lengths, thereby having a wide range of applications. Whether it is measuring the angle of a right triangle, drawing parallel lines, or drawing circles of different sizes, the tool ruler can meet different measurement and drawing needs, greatly improving the work quality and use efficiency compared with traditional devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a first-perspective stereogram of the present invention;

[0023] Figure 2 It is a second perspective stereogram of the utility model;

[0024] Figure 3It is a partial structural schematic diagram of the utility model;

[0025] Figure 4 It is a partial structural schematic diagram of the utility model;

[0026] Figure 5 It is a top sectional view of the utility model;

[0027] Figure 6 for Figure 2 Enlarged view of point A in the middle.

[0028] Legend: 1. Ruler body; 2. Triangular slot; 3. Rectangular slot; 4. Circular slot; 5. First triangular rod; 6. Second triangular rod; 7. First rectangular rod; 8. Second rectangular rod; 9. Support rod; 10. Angle rod; 11. First through slot; 12. Second through slot; 13. First limiting slot; 14. Second limiting slot; 15. Third through slot; 16. Through hole; 17. Length scale; 18. Wave scale; 19. Distance scale; 20. Angle scale. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments.

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0031] Example

[0032] like Figure 1-Figure 6As shown, the utility model provides a technical solution: an adjustable mathematical tool ruler, comprising a ruler body 1, a triangular groove 2, a rectangular groove 3 and a circular groove 4, wherein the triangular groove 2 is opened inside the ruler body 1, the rectangular groove 3 is opened inside the ruler body 1 and is located on one side of the triangular groove 2, the circular groove 4 is opened inside the ruler body 1 and is located on the side of the rectangular groove 3 away from the triangular groove 2, a first triangular rod 5 is rotatably connected to one side of the inner wall of the triangular groove 2, a second triangular rod 6 is rotatably connected to the inner wall of the triangular groove 2 and located on one side of the first triangular rod 5, the first triangular rod 5 is used in conjunction with the second triangular rod 6, a first rectangular rod 7 is slidably connected to the inside of the rectangular groove 3, a second rectangular rod 8 is slidably connected to the inside of the rectangular groove 3, and the first The rectangular rod 7 is used in conjunction with the second rectangular rod 8. The inner wall of the circular groove 4 is fixedly connected to a support rod 9, and one end of the support rod 9 is rotatably connected to an angle rod 10. The mathematical tool ruler in the above device not only has a basic measuring body, namely a ruler body 1, but also specially designed diversified measuring grooves such as a triangular groove 2, a rectangular groove 3 and a circular groove 4, so that it can meet the measurement needs of various shapes and sizes. The triangular groove 2 can measure triangular or conical objects, while the rectangular groove 3 is suitable for measuring rectangular or square objects, and its length and width can be flexibly adjusted. The circular groove 4 can be used to measure circular or cylindrical objects, and the support rod 9 designed inside it can effectively prevent the object from sliding or deforming during the measurement process.

[0033] Among them, a first through slot 11 is opened inside the first triangular rod 5, and a second through slot 12 is opened inside the second triangular rod 6. The first through slot 11 and the second through slot 12 are adjusted by screws. In the above device, the first triangular rod 5 is exquisitely opened with a first through slot 11 to achieve precise adjustment, and the second triangular rod 6 is also opened with a second through slot 12 to accommodate the adjustment of the screw. The screw slides precisely between the two through slots, thereby achieving precise adjustment of the two triangular rods.

[0034] Among them, a first limiting groove 13 is opened on both sides of the inner wall of the rectangular groove 3, and both ends of the first rectangular rod 7 are slidably connected to the first limiting groove 13. Second limiting grooves 14 are opened on both sides of the inner wall of the rectangular groove 3 and at ninety degrees to the first limiting groove 13. Both ends of the second rectangular rod 8 are slidably connected to the second limiting groove 14. A third through groove 15 is opened inside the first rectangular rod 7, and the second rectangular rod 8 passes through the third through groove 15. The first rectangular rod 7 and the second rectangular rod 8 are adjusted by screws. In the above device, the first rectangular rod 7 and the second rectangular rod 8 are adjusted by screws, so that the relative position between the first rectangular rod 7 and the second rectangular rod 8 can be adjusted as needed.

[0035] Among them, through holes 16 are equidistantly opened inside the angle rod 10, and the end where the angle rod 10 intersects with the support rod 9 is adjusted by a screw. The above device enables the end where the angle rod 10 intersects with the support rod 9 to be conveniently and reliably adjusted. The action of the screw enables the angle between the angle rod 10 and the support rod 9 to be stably fixed, thereby ensuring the stability and accuracy of the equipment.

[0036] Among them, a length scale 17 is set on one side of the ruler body 1, and a wave scale 18 is set on the side of the ruler body 1 away from the length scale 17. The length scale 17 in the above device is convenient for users to perform accurate measurements, and the wave scale 18 allows users to observe and read the scale more easily.

[0037] Among them, two distance scales 19 are arranged at 90 degrees on the top of the ruler body 1 and on both sides of the rectangular groove 3. In the above device, according to the adjustment of the distance scales 19, the size of the drawn rectangle can be clearly known.

[0038] Among them, an angle scale 20 is arranged at the top of the ruler body 1 and on the outside of the circular groove 4, and the end of the angle rod 10 away from the support rod 9 is used in conjunction with the angle scale 20. When measuring the angle in the above device, one end of the angle rod 10 points to the angle scale 20, so that the operator can easily understand the size of the angle.

[0039] Working principle:

[0040] like Figure 1-Figure 6 As shown, in the above device, the ruler body 1 is first placed at the position where drawing is required. When a triangle needs to be drawn, it is adjusted according to the size, and the screw is loosened so that the point where the first triangle rod 5 and the second triangle rod 6 intersect can be moved, thereby adjusting the size of the triangle. When a rectangle needs to be drawn, the screw is loosened so that the second rectangular rod 8 can be moved inside the first rectangular rod 7 through the third through slot 15, and the first rectangular rod 7 can be moved laterally, thereby adjusting the size of the rectangle. When a circle needs to be drawn, the angle rod 10 is adjusted to a specified position, and the drawing tool is inserted into the position of the through hole 16, and one circle is wound to complete the drawing of the circle. Whether it is measuring the angle of a right triangle, drawing parallel lines, or drawing circles of different sizes, the above tool ruler can meet different measurement and drawing needs, and greatly improves the work quality and use efficiency compared with traditional devices.

[0041] Finally, it should be noted that the above-described embodiments are only used to illustrate the technical solution 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 replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the utility model.

Claims

1. An adjustable mathematical tool ruler, comprising a ruler body (1), a triangular groove (2), a rectangular groove (3) and a circular groove (4), characterized in that: The triangular groove (2) is provided inside the ruler body (1); the rectangular groove (3) is provided inside the ruler body (1) and is located on one side of the triangular groove (2); the circular groove (4) is provided inside the ruler body (1) and is located on a side of the rectangular groove (3) away from the triangular groove (2); a first triangular rod (5) is rotatably connected to one side of the inner wall of the triangular groove (2); a second triangular rod (6) is rotatably connected to the inner wall of the triangular groove (2) and located on one side of the first triangular rod (5); the first triangular rod (5) and the second triangular rod (6) are used in coordination; a first rectangular rod (7) is slidably connected to the inside of the rectangular groove (3); a second rectangular rod (8) is slidably connected to the inside of the rectangular groove (3); the first rectangular rod (7) and the second rectangular rod (8) are used in coordination; a support rod (9) is fixedly connected to the inner wall of the circular groove (4); one end of the support rod (9) is rotatably connected to an angle rod (10).

2. An adjustable mathematical tool ruler according to claim 1, characterized in that: A first through slot (11) is provided inside the first triangular rod (5), a second through slot (12) is provided inside the second triangular rod (6), and the first through slot (11) and the second through slot (12) are adjusted by means of screws.

3. The adjustable mathematical tool ruler according to claim 1, characterized in that: First limiting grooves (13) are provided on both sides of the inner wall of the rectangular groove (3), both ends of the first rectangular rod (7) are slidably connected to the first limiting grooves (13), second limiting grooves (14) are provided on both sides of the inner wall of the rectangular groove (3) and are 90 degrees to the first limiting grooves (13), both ends of the second rectangular rod (8) are slidably connected to the second limiting grooves (14), a third through groove (15) is provided inside the first rectangular rod (7), the second rectangular rod (8) passes through the third through groove (15), and the first rectangular rod (7) and the second rectangular rod (8) are adjusted by screws.

4. The adjustable mathematical tool ruler according to claim 1, characterized in that: Through holes (16) are equidistantly provided inside the angle rod (10), and one end of the angle rod (10) intersecting with the support rod (9) is adjusted by means of a screw.

5. The adjustable mathematical tool ruler according to claim 1, characterized in that: One side of the ruler body (1) is provided with a length scale (17), and the side of the ruler body (1) away from the length scale (17) is provided with a wave scale (18).

6. The adjustable mathematical tool ruler according to claim 3, characterized in that: Two distance scales (19) are arranged at the top of the ruler body (1) and on both sides of the rectangular groove (3) at an angle of 90 degrees.

7. An adjustable mathematical tool ruler according to claim 4, characterized in that: An angle scale (20) is provided at the top of the ruler body (1) and outside the circular groove (4), and one end of the angle rod (10) away from the support rod (9) is used in conjunction with the angle scale (20).

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