Novel teaching plotter

Abstract

The utility model discloses a novel teaching plotter, which comprises a positioning plate, a rotating seat is fixedly mounted on the upper surface of the positioning plate, and an L-shaped plotting plate is fixedly connected to the inner wall of the rotating seat. According to the device, by arranging the positioning plate, the rotating seat, the drawing plate, the annular fixing frame, the sliding hole, the T-shaped positioning rod, the telescopic spring and the dial gauge, the drawing plate can be conveniently rotated through the rotating seat, the T-shaped positioning rod is matched to be in sliding connection with the sliding hole, and the telescopic spring can be compressed by pulling the T-shaped positioning rod; in addition, an annular fixing frame is in sliding connection with the drawing board, the chalk can be conveniently moved to the needed position of the dial gauge, meanwhile, the annular fixing frame and the chalk can be conveniently and rapidly positioned and fixed through resilience force of a telescopic spring, and the chalk can be conveniently and rapidly fixed through threaded connection of a positioning screw rod and a fixing screw barrel; chalks with different lengths can be conveniently installed, the utilization rate of the chalks is improved, and the situation of chalk waste is avoided.

Description

Technical Field

[0001] This application relates to the field of teaching drawing technology, and in particular to a novel teaching drawing device. Background Technology

[0002] As we all know, a mathematical plotter is a device used in classroom mathematics teaching. It is mainly used to draw circles or other figures. In the subject of mathematics, there are many categories such as algebra and geometry. Teachers and students need to understand and apply various geometric definitions and solve problems by drawing figures. Moreover, various figures are drawn during the process of mathematics teaching, such as circles, triangles, coordinate systems, etc.

[0003] In the field of mathematics teaching, drawing tools are often needed for drawing. However, existing drawing tools have limited functions and poor flexibility. They are not convenient for adjusting the circles on the drawing tool as needed. Teachers need to spend a lot of time searching for the required drawing tool when drawing, which reduces the efficiency and quality of teaching. Therefore, we provide a new type of teaching drawing tool to solve this problem. Utility Model Content

[0004] The purpose of this invention is to provide a novel teaching drawing tool to solve the problems mentioned in the background art.

[0005] The embodiments of this application adopt the following technical solutions:

[0006] A novel teaching drawing device includes a positioning plate, a rotating seat fixedly mounted on the upper surface of the positioning plate, an L-shaped drawing board fixedly connected to the inner wall of the rotating seat, an annular fixing frame slidably connected to the outer surface of the drawing board, a sliding hole on the upper surface of the annular fixing frame, a T-shaped positioning rod slidably connected to the inner wall of the sliding hole, a telescopic spring fixedly connected to the upper surface of the T-shaped positioning rod, the top end of the telescopic spring being fixedly connected to the inner top wall of the annular fixing frame, a mounting base fixedly connected to the back of the annular fixing frame, a fixing screw cylinder fixedly embedded in the bottom surface of the mounting base, a positioning screw rod above the fixing screw cylinder, chalk below the fixing screw cylinder, and a scale fixedly embedded in the upper surface of the drawing board.

[0007] Preferably, glow-in-the-dark stickers are affixed to both the front and back of the positioning plate, and each glow-in-the-dark sticker has a waterproof coating on its outer surface. The chalk is compatible with the fixing screw.

[0008] Preferably, an anti-slip pad is fixedly connected to the bottom surface of the positioning plate, and the anti-slip pad is made of rubber.

[0009] Preferably, a pressing block is fixedly connected to the upper surface of the positioning plate, the positioning screw is adapted to the fixing screw cylinder, and the bottom surface of the T-shaped positioning rod is in close contact with the upper surface of the scale.

[0010] Preferably, a pull ring is fixedly connected to the top of the T-shaped positioning rod, and anti-slip texture is provided on the bottom surface of the T-shaped positioning rod.

[0011] Preferably, the bottom surface of the drawing board is provided with a groove, and a slider is slidably connected to the inner wall of the groove. The bottom surface of the slider is fixedly connected to the inner bottom wall of the annular fixing frame.

[0012] The above-described technical solutions adopted in the embodiments of this application can achieve the following beneficial effects:

[0013] 1. This device is equipped with a positioning plate, a rotating base, a drawing board, a ring-shaped fixing frame, a sliding hole, a T-shaped positioning rod, a telescopic spring, and a scale. The rotating base allows for easy rotation of the drawing board, and the T-shaped positioning rod slides through the sliding hole. Pulling the T-shaped positioning rod compresses the telescopic spring. The ring-shaped fixing frame slides through the drawing board, allowing for easy movement of the chalk to the desired position on the scale. At the same time, the rebound force of the telescopic spring allows for quick and easy positioning and fixing of the ring-shaped fixing frame and the chalk.

[0014] 2. This device is equipped with a mounting base, a fixing screw, a positioning screw, and chalk. The positioning screw is threadedly connected to the fixing screw, which makes it easy to install chalk of different lengths. This improves the utilization rate of chalk and avoids chalk waste. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0016] Figure 1 Here is a schematic diagram of the three-dimensional positioning plate in this utility model;

[0017] Figure 2 See: Rear view of the positioning plate in this utility model;

[0018] Figure 3 See: A side view of the drawing board in this utility model;

[0019] Figure 4 See: The bottom view of the drawing board in this utility model.

[0020] In the diagram: 1. Positioning plate; 2. Rotary seat; 3. Drawing board; 4. Circular fixing frame; 5. Sliding hole; 6. T-shaped positioning rod; 7. Telescopic spring; 8. Mounting base; 9. Fixing screw; 10. Positioning screw; 11. Chalk; 12. Luminous sticker; 13. Anti-slip pad; 14. Pressing block; 15. Pull ring; 16. Slide groove; 17. Slider; 18. Scale. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] The technical solutions provided by the various embodiments of this application are described in detail below with reference to the accompanying drawings.

[0023] Please see Figure 1-4 This utility model provides a novel teaching drawing device technical solution:

[0024] A novel teaching drawing device includes a positioning plate 1, a rotating seat 2 fixedly mounted on the upper surface of the positioning plate 1, an L-shaped drawing board 3 fixedly connected to the inner wall of the rotating seat 2, an annular fixing frame 4 slidably connected to the outer surface of the drawing board 3, a sliding hole 5 on the upper surface of the annular fixing frame 4, a T-shaped positioning rod 6 slidably connected to the inner wall of the sliding hole 5, a telescopic spring 7 fixedly connected to the upper surface of the T-shaped positioning rod 6, the top end of the telescopic spring 7 being fixedly connected to the inner top wall of the annular fixing frame 4, a mounting base 8 fixedly connected to the back of the annular fixing frame 4, a fixing screw cylinder 9 fixedly embedded in the bottom surface of the mounting base 8, a positioning screw 10 above the fixing screw cylinder 9, and chalk 11 below the fixing screw cylinder 9. The upper surface is fixedly inlaid with a scale 18; specifically, the drawing board 3 can be easily rotated by the rotating seat 2, and it is slidably connected to the sliding hole 5 with the T-shaped positioning rod 6. Pulling the T-shaped positioning rod 6 can compress the telescopic spring 7. In addition, the ring fixing frame 4 is slidably connected to the drawing board 3, which can easily move the chalk 11 to the required position of the scale 18. At the same time, the rebound force of the telescopic spring 7 can easily and quickly position and fix the ring fixing frame 4 and the chalk 11. The positioning screw 10 is threadedly connected to the fixing screw 9, which can easily install chalk 11 of different lengths, which improves the utilization rate of chalk 11 and avoids the waste of chalk 11.

[0025] In this embodiment, luminous stickers 12 are affixed to both the front and back of the positioning plate 1. Each luminous sticker 12 has a waterproof coating on its outer surface. The chalk 11 is compatible with the fixing screw 9. An anti-slip pad 13, made of rubber, is fixedly connected to the bottom surface of the positioning plate 1. A pressing block 14 is fixedly connected to the upper surface of the positioning plate 1. The positioning screw 10 is compatible with the fixing screw 9. The bottom surface of the T-shaped positioning rod 6 is in close contact with the upper surface of the scale 18. Specifically, by providing luminous stickers 12, and each luminous sticker 12... The outer surface of the sticker 12 is coated with a waterproof layer, which can improve the recognition of the device when the field of vision is poor, improve its waterproof performance, and increase its service life. The anti-slip pad 13, which is made of rubber, can improve the stability of the positioning plate 1 in contact with the blackboard and prevent its displacement, thus improving the quality of drawing. The pressing block 14 can facilitate the positioning of the positioning plate 1, preventing the inconvenience of fixing it when in contact with the blackboard, and improving its ease of handling.

[0026] In this embodiment, a pull ring 15 is fixedly connected to the top of the T-shaped positioning rod 6, and anti-slip texture is provided on the bottom surface of the T-shaped positioning rod 6; a sliding groove 16 is provided on the bottom surface of the drawing board 3, and a slider 17 is slidably connected to the inner wall of the sliding groove 16. The bottom surface of the slider 17 is fixedly connected to the inner bottom wall of the annular fixing frame 4. Specifically, by providing the pull ring 15 and the anti-slip texture on the bottom surface of the T-shaped positioning rod 6, it is convenient to pull the T-shaped positioning rod 6 to compress the telescopic spring 7. At the same time, it can improve the tight contact between the T-shaped positioning rod 6 and the drawing board 3, avoid the displacement of the annular fixing frame 4, and improve the stability of the T-shaped positioning rod 6. By using the sliding groove 16 and the slider 17, the stability of the annular fixing frame 4 can be improved, avoiding its shaking and displacement, and improving the quality of drawing.

[0027] Working principle: The user first holds the pressing block 14 with one hand to contact the positioning plate 1 with the blackboard, and pulls the T-shaped positioning rod 6 to compress the telescopic spring 7, and pulls the ring fixing bracket 4 to move it to the position specified by the scale 18. At the same time, the T-shaped positioning rod 6, and then the elastic force of the telescopic spring 7, makes the T-shaped positioning rod 6 in close contact with the drawing board 3 and the scale 18. The chalk 11 is inserted into the fixing screw 9, and the positioning screw 10 is inserted into it and rotated. Then the positioning screw 10 positions the chalk 11. At the same time, the user holds the drawing board 3 and rotates it with the rotating base 2. Next, the chalk 11 draws circles. Finally, the positioning plate 1 is finely adjusted to fill in the circles that were not drawn. The above is the complete usage process of this utility model.

[0028] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A novel teaching drawing device, comprising a positioning plate (1), characterized in that: A rotating seat (2) is fixedly installed on the upper surface of the positioning plate (1). An L-shaped drawing plate (3) is fixedly connected to the inner wall of the rotating seat (2). An annular fixing frame (4) is slidably connected to the outer surface of the drawing plate (3). A sliding hole (5) is opened on the upper surface of the annular fixing frame (4). A T-shaped positioning rod (6) is slidably connected to the inner wall of the sliding hole (5). A telescopic spring (7) is fixedly connected to the upper surface of the T-shaped positioning rod (6). The top end of the telescopic spring (7) is fixedly connected to the inner top wall of the annular fixing frame (4). An installation seat (8) is fixedly connected to the back of the annular fixing frame (4). A fixing screw (9) is fixedly embedded on the bottom surface of the installation seat (8). A positioning screw (10) is provided above the fixing screw (9). A chalk (11) is provided below the fixing screw (9). A scale (18) is fixedly embedded on the upper surface of the drawing plate (3).

2. The novel teaching drawing device according to claim 1, characterized in that: The front and back of the positioning plate (1) are both covered with glow-in-the-dark stickers (12), and the outer surface of each glow-in-the-dark sticker (12) is coated with a waterproof layer. The chalk (11) is compatible with the fixing screw (9).

3. The novel teaching drawing device according to claim 1, characterized in that: The bottom surface of the positioning plate (1) is fixedly connected to an anti-slip pad (13), which is made of rubber.

4. The novel teaching drawing device according to claim 1, characterized in that: The upper surface of the positioning plate (1) is fixedly connected to a pressing block (14), the positioning screw (10) is adapted to the fixing screw cylinder (9), and the bottom surface of the T-shaped positioning rod (6) is in close contact with the upper surface of the scale (18).

5. The novel teaching drawing device according to claim 1, characterized in that: The top of the T-shaped positioning rod (6) is fixedly connected to a pull ring (15), and the bottom surface of the T-shaped positioning rod (6) is provided with anti-slip texture.

6. The novel teaching drawing device according to claim 1, characterized in that: The bottom surface of the drawing board (3) is provided with a sliding groove (16), and a slider (17) is slidably connected to the inner wall of the sliding groove (16). The bottom surface of the slider (17) is fixedly connected to the inner bottom wall of the annular fixing frame (4).

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