Curve drawing device for mathematics

Abstract

The utility model relates to the field of mathematics teaching tools, and discloses a mathematics curve drawing device which comprises a fixed ruler, a rotating ruler is rotatably connected to the inner wall of the bottom end of the fixed ruler, a pull rod is connected to the top end of the fixed ruler through a connecting assembly, and a suction cup is fixedly connected to the upper side of the rear end of the fixed ruler. The lead screw is rotationally connected to the inner wall of the rotating ruler, the right end of the lead screw is fixedly connected with a rotating rod, the top end of the lead screw is connected with a supporting seat through a splicing assembly, and the top end of the supporting seat is connected with a sliding seat through a threaded assembly. The connecting assembly comprises an inserting rod connected to the top end of the fixed ruler in a sliding mode, and the bottom end of the pull rod is fixedly connected to the top end of the inserting rod. According to the drawing device, the rotating ruler can be rapidly and stably folded in the fixed ruler, carrying and storage are convenient, chalk can be clamped and fixed, the curve drawing precision and quality are improved, the chalk can be moved on the rotating ruler, and the drawing device can draw more curve shapes.

Description

Technical Field

[0001] This utility model relates to the field of mathematical teaching tools, and in particular to a device for drawing curves in mathematics. Background Technology

[0002] In mathematics teaching, such as courses like advanced mathematics, analytic geometry, and functions, teachers need to visually demonstrate various curves to students, such as parabolas, hyperbolas, and trigonometric function curves, to help students better understand mathematical concepts and principles. Traditional manual curve drawing methods suffer from poor accuracy and long processing times, affecting teaching efficiency and quality. Therefore, a device that can quickly and accurately draw curves is needed to meet teaching needs.

[0003] When drawing curves, two rulers are often used together. Currently, the rulers are cumbersome to fold, making it difficult to fold and unfold quickly, which makes them inconvenient to carry. In addition, the chalk is often fixed to the end of the ruler, which limits the drawing of curves.

[0004] In response to the technical problem of cumbersome folding drawing tools, this application proposes a mathematical curve drawing device. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a mathematical curve drawing device that can quickly fold and unfold a drawing ruler and move the position of chalk to draw curves of different sizes and shapes.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A mathematical curve drawing device includes a fixed ruler, a rotating ruler rotatably connected to the inner wall of the bottom end of the fixed ruler, a pull rod connected to the top end of the fixed ruler via a connecting component, and a suction cup fixedly connected to the upper side of the rear end of the fixed ruler.

[0008] A lead screw is rotatably connected to the inner wall of the rotating ruler. A rotating rod is fixedly connected to the right end of the lead screw. A support base is connected to the top end of the lead screw through a splicing assembly. A sliding seat is connected to the top end of the support base through a threaded assembly.

[0009] Furthermore, the connecting assembly includes a plug rod slidably connected to the top of the fixed ruler, and the bottom end of the pull rod is fixedly connected to the top end of the plug rod.

[0010] Furthermore, a second spring is fixedly connected to the top of the fixed ruler, and the top of the second spring is fixedly connected to the bottom of the pull rod.

[0011] Furthermore, a fixing ring is fixedly connected to the outer wall of the insertion rod, and a first spring is fixedly connected to the top of the fixing ring. The top of the first spring is fixedly connected to the inner wall of the fixing ruler.

[0012] Furthermore, the splicing assembly includes a slider threadedly connected to the outer wall of the lead screw, and the bottom end of the support base is fixedly connected to the top end of the slider.

[0013] Furthermore, the threaded assembly includes a screw rotatably connected to the left side of the top of the support base, and the left side of the bottom of the sliding seat is threadedly connected to the outer wall of the screw.

[0014] Furthermore, a support rod is fixedly connected to the top right side of the support base, and the bottom right side of the sliding base is slidably connected to the outer wall of the support rod.

[0015] Furthermore, both the inner wall of the support base and the inner wall of the sliding base are fixedly connected to a connecting rod, and a clamping plate is fixedly connected to one end of each connecting rod.

[0016] This utility model has the following beneficial effects:

[0017] 1. In this utility model, the rotating ruler can be quickly folded inside the fixed ruler and easily unfolded, which makes it convenient for teachers to carry out teaching activities anytime and anywhere, saves teachers time in folding and unfolding the ruler to draw curves, thereby improving teaching efficiency, saving storage space, and facilitating maintenance and protection.

[0018] 2. In this utility model, the chalk can be clamped and fixed, improving the accuracy and quality of curve drawing, making teaching more convenient, and allowing the chalk to be moved on the rotating ruler, enabling the drawing device to draw more curve shapes and increasing the practicality of the device. Attached Figure Description

[0019] Figure 1 This is a three-dimensional view of a mathematical curve drawing device proposed in this utility model;

[0020] Figure 2 This is a structural diagram of a rotating ruler for a mathematical curve drawing device proposed in this utility model;

[0021] Figure 3 This is a diagram of the pull rod structure of a mathematical curve drawing device proposed in this utility model;

[0022] Figure 4 This is a first spring structure diagram of a mathematical curve drawing device proposed in this utility model;

[0023] Figure 5 This utility model provides a lead screw structure diagram for a mathematical curve drawing device.

[0024] Figure 6 This is a structural diagram of the sliding seat of a mathematical curve drawing device proposed in this utility model.

[0025] Legend:

[0026] 1. Fixed ruler; 2. Rotating ruler; 3. Suction cup; 4. Insert rod; 5. Fixing ring; 6. First spring; 7. Pull rod; 8. Second spring; 9. Lead screw; 10. Rotating rod; 11. Slider; 12. Support base; 13. Screw; 14. Connecting rod; 15. Sliding seat; 16. Support rod; 17. Clamping plate. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Reference Figure 1 , Figure 3 and Figure 4 An embodiment of this utility model provides a mathematical curve drawing device, comprising a fixed ruler 1, a rotating ruler 2 rotatably connected to the inner wall of the bottom end of the fixed ruler 1, an insert rod 4 slidably connected to the top end of the fixed ruler 1, a pull rod 7 fixedly connected to the top end of the insert rod 4 at its bottom end, a suction cup 3 fixedly connected to the upper side of the rear end of the fixed ruler 1, a second spring 8 fixedly connected to the top end of the fixed ruler 1, the top end of the second spring 8 fixedly connected to the bottom end of the pull rod 7, a fixed ring 5 fixedly connected to the outer wall of the insert rod 4, a first spring 6 fixedly connected to the top end of the fixed ring 5, and the top end of the first spring 6 fixedly connected to the inner wall of the fixed ruler 1.

[0029] Specifically, both the first spring 6 and the second spring 8 have good elasticity. The bottom end of the insertion rod 4 is split open on one side to facilitate the rotation of the ruler 2 to press the insertion rod 4. Both the fixed ruler 1 and the rotating ruler 2 are equipped with scales. The rotating ruler 2 needs a certain amount of force to rotate on the fixed ruler 1. Under normal conditions, the rotating ruler 2 will not rotate on its own. The rotating part is equipped with a threaded rod and a pressure plate to fix the unfolded rotating ruler 2. The suction cup 3 can fix the fixed ruler 1 on the blackboard. The suction cup 3 can be pulled open by applying force.

[0030] Reference Figure 2 , Figure 5 and Figure 6A lead screw 9 is rotatably connected to the inner wall of a rotating ruler 2. A rotating rod 10 is fixedly connected to the right end of the lead screw 9. A slider 11 is threadedly connected to the outer wall of the lead screw 9. The bottom end of a support base 12 is fixedly connected to the top end of the slider 11. A screw 13 is rotatably connected to the left side of the top end of the support base 12. The left side of the bottom end of a sliding seat 15 is threadedly connected to the outer wall of the screw 13. A support rod 16 is fixedly connected to the right side of the top end of the support base 12. The right side of the bottom end of the sliding seat 15 is slidably connected to the outer wall of the support rod 16. A connecting rod 14 is fixedly connected to the inner wall of both the support base 12 and the inner wall of the sliding seat 15. A clamp 17 is fixedly connected to the opposite end of each connecting rod 14.

[0031] Specifically, the rotating rod 10 facilitates the rotation of the lead screw 9, the support rod 16 provides support for the sliding of the sliding seat 15, the bottom end of the screw 13 is fixedly connected to a turntable, which makes it convenient for the teacher to rotate the screw 13, and the side of the clamping plate 17 that holds the chalk is rough, which can hold the chalk more stably.

[0032] Working principle: When drawing a curve, first pull the lever 7 to move the insert rod 4, then detach the rotating ruler 2 from the fixed ruler 1, rotate the screw 13 to move the sliding seat 15, select a suitable distance, place the chalk on the clamp 17 of the connecting rod 14, rotate the screw 13 again to move the sliding seat 15, and use the clamp 17 to clamp the chalk, then rotate the rotating rod 10 to rotate the lead screw 9, so that the slider 11 slides on the rotating rod 10, thereby moving the position of the chalk, and use the suction cup 3 to stick the fixed ruler 1 to the blackboard. Rotate the rotating ruler 2 to draw the curve. After the curve is drawn, rotate the rotating ruler 2. After the top of the rotating ruler 2 contacts the insert rod 4, move the insert rod 4 upward. The insert rod 4 moves the fixed ring 5 and compresses the first spring 6. The insert rod 4 moves the lever 7 and stretches the second spring 8. As the rotating ruler 2 gradually moves, the first spring 6 and the second spring 8 return to their original state and press the insert rod 4 against the inner wall of the rotating ruler 2 to fix the rotating ruler 2.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mathematical curve plotting device, characterized in that, include: A fixed ruler (1) is rotatably connected to the inner wall of the bottom end of the fixed ruler (1), and a pull rod (7) is connected to the top end of the fixed ruler (1) through a connecting component. A suction cup (3) is fixedly connected to the upper side of the rear end of the fixed ruler (1). A lead screw (9) is rotatably connected to the inner wall of the rotating ruler (2). A rotating rod (10) is fixedly connected to the right end of the lead screw (9). A support seat (12) is connected to the top end of the lead screw (9) through a splicing assembly. A sliding seat (15) is connected to the top end of the support seat (12) through a threaded assembly.

2. The mathematical curve drawing device according to claim 1, characterized in that: The connecting assembly includes a plug (4) that is slidably connected to the top of the fixed ruler (1), and the bottom end of the pull rod (7) is fixedly connected to the top of the plug (4).

3. The mathematical curve drawing device according to claim 2, characterized in that: The top of the fixed ruler (1) is fixedly connected to a second spring (8), and the top of the second spring (8) is fixedly connected to the bottom of the pull rod (7).

4. The mathematical curve drawing device according to claim 2, characterized in that: A fixing ring (5) is fixedly connected to the outer wall of the insertion rod (4), and a first spring (6) is fixedly connected to the top of the fixing ring (5). The top of the first spring (6) is fixedly connected to the inner wall of the fixing ruler (1).

5. The mathematical curve drawing device according to claim 1, characterized in that: The splicing assembly includes a slider (11) threaded to the outer wall of the lead screw (9), and the bottom end of the support base (12) is fixedly connected to the top end of the slider (11).

6. The mathematical curve drawing device according to claim 1, characterized in that: The threaded assembly includes a screw (13) rotatably connected to the left side of the top of the support (12), and the left side of the bottom of the sliding seat (15) is threadedly connected to the outer wall of the screw (13).

7. The mathematical curve drawing device according to claim 1, characterized in that: The support base (12) is fixedly connected to the right side of the top end of the support rod (16), and the right side of the bottom end of the sliding base (15) is slidably connected to the outer wall of the support rod (16).

8. The mathematical curve drawing device according to claim 1, characterized in that: The inner wall of the support base (12) and the inner wall of the sliding base (15) are both fixedly connected to a connecting rod (14), and a clamp (17) is fixedly connected to one end of each connecting rod (14).

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