Linear equation drawing tool

Abstract

The utility model discloses a linear equation drawing tool which comprises a drawing frame, the drawing frame is arranged in a cross shape, a shaft groove arranged in a penetrating mode is formed in the drawing frame, the longitudinal section of the shaft groove is arranged in a cross shape, and every two opposite side walls of the drawing frame are respectively provided with a sliding groove and fixedly connected with a U-shaped block. A first round rod is fixedly connected to the inner side wall of each U-shaped block, a sliding block is slidably connected into the sliding groove, a groove is formed in the upper end of the sliding block, a second round rod is fixedly connected to the side wall of the groove, a curve strip is arranged between the second round rod and the first round rod, and the sliding block is sleeved with an abutting spring. The two ends of the abutting spring abut against the side wall of the sliding block and the inner side wall of the sliding groove correspondingly. According to the utility model, curves with different curvatures can be drawn, and the drawing speed and attractiveness of a linear equation diagram are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching aids, in particular to a straight line equation drawing tool. Background Art

[0002] Secondary vocational schools are schools that implement secondary vocational education. Graduates are awarded a secondary vocational school degree. This is vocational education conducted during the high school education stage, and also includes some post-high school vocational training. It is the main body of China's vocational education. Its positioning is to cultivate a large number of skilled talents and high-quality workers on the basis of compulsory education. While secondary vocational schools provide students with high school cultural knowledge education, they also implement vocational knowledge and vocational skills education in a targeted manner according to the requirements of professional positions. In the process of secondary vocational mathematics teaching, it is necessary to draw straight line equations, so a planting mathematical straight line equation drawing tool is needed.

[0003] For example, Chinese patent application No. 202120764099.8 provides a tool for drawing linear equations in secondary vocational school mathematics. The tool comprises a drawing mechanism and a slide. The drawing mechanism comprises a horizontal plate, a rotating shaft and a vertical plate. The top of the horizontal plate is connected to the vertical plate by rotating the rotating shaft. A slide is provided on one side of the vertical plate. The inner wall of the slide is slidably connected to a slider. The inner wall of the slider is provided with a through hole. The tool for drawing linear equations in secondary vocational school mathematics provided by the utility model has the advantages of increasing the work efficiency of users.

[0004] In the above scheme, although curves can be drawn, only curves like circular arcs can be drawn. In the straight line equation graph, curves of different curvatures often need to be drawn. In order to solve the above problem, we have designed a straight line equation drawing tool. Utility Model Content

[0005] The utility model provides a straight line equation drawing tool to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A straight line equation drawing tool includes a drawing stand, the drawing stand is arranged in a cross shape, the drawing stand is provided with an axis groove arranged through it, the longitudinal section of the axis groove is arranged in a cross shape, each two opposite side walls of the drawing stand are respectively provided with a sliding groove and a U-shaped block fixedly connected, the inner side wall of each U-shaped block is fixedly connected to a first round rod, a sliding block is slidably connected in the sliding groove, the upper end of the sliding block is provided with a groove, the side wall of the groove is fixedly connected to a second round rod, a curved bar is provided between the second round rod and the first round rod, a pressure spring is sleeved on the sliding block, the two ends of the pressure spring are respectively abutted against the side walls of the sliding block and the inner side walls of the sliding groove, a fixed block is fixedly connected to the bottom side wall of the sliding block, and a plurality of fixed grooves are provided on the sliding groove.

[0008] As a further improvement of the present technical solution: the longitudinal sections of the sliding block and the sliding groove are both convex.

[0009] As a further improvement of this technical solution: the curved strip is made of stainless steel.

[0010] As a further improvement of this technical solution: the drawing stand is a transparent plastic plate.

[0011] As a further improvement of the present technical solution: the drawing stand is provided with scale numbers.

[0012] As a further improvement of the technical solution: one end of the drawing stand is fixedly connected with a hanging ear.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] By changing the position of the slider, the curvature of the curve can be changed, which can help users draw better curve equation diagrams. The fixed slot and fixed block facilitate the fixation of the slider position, making it very convenient to use. The axis slot can also quickly draw the X-axis and Y-axis, which is more beautiful than manual drawing.

[0015] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the description, the following preferred embodiments of the present invention are described in detail with reference to the accompanying drawings. The specific implementation methods of the present invention are given in detail in the following embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 This is a schematic diagram of the front view and cross-section structure of a straight line equation drawing tool proposed by the utility model;

[0018] Figure 2 This is a side view cross-sectional structural diagram of a straight line equation drawing tool proposed by the utility model;

[0019] Figure 3 The present invention provides a three-dimensional structural diagram of a straight line equation drawing tool.

[0020] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0021] 1. Drawing stand; 2. Axis slot; 3. U-shaped block; 4. First round rod; 5. Curved bar; 6. Sliding slot; 7. Groove; 8. Second round rod; 9. Compression spring; 10. Sliding block; 11. Fixed slot; 12. Fixed block; 13. Hanging ear. DETAILED DESCRIPTION

[0022] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples provided are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. The following paragraphs describe the present invention in more detail by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the drawings are in a very simplified form and are not in exact proportions, and are only used to facilitate and clearly illustrate the embodiments of the present invention.

[0023] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a central component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit this invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] See also Figure 1-3In an embodiment of the present invention, a straight line equation drawing tool includes a drawing frame 1, which is arranged in a cross shape. The drawing frame 1 is provided with an axis groove 2 that is arranged through it. The longitudinal section of the axis groove 2 is arranged in a cross shape. A sliding groove 6 and a U-shaped block 3 are respectively provided on each two opposite side walls of the drawing frame 1. A first round rod 4 is fixedly connected to the inner side wall of each U-shaped block 3. A sliding block 10 is slidably connected in the sliding groove 6. A groove 7 is provided at the upper end of the sliding block 10. A second round rod 8 is fixedly connected to the side wall of the groove 7. A curved bar 5 is provided between the second round rod 8 and the first round rod 4. A pressure spring 9 is sleeved on the sliding block 10. The two ends of the pressure spring 9 are respectively pressed against the side walls of the sliding block 10 and the inner side walls of the sliding groove 6. A fixed block 12 is fixedly connected to the bottom side wall of the sliding block 10, and a plurality of fixed grooves 11 are provided on the sliding groove 6.

[0026] Specifically, the longitudinal sections of the sliding block 10 and the sliding groove 6 are both convex, which can cover the pressure spring 9 and limit the sliding block 10 to slide in the sliding groove 6.

[0027] Specifically, the curved bar 5 is made of stainless steel. The stainless steel bar has a certain degree of curvature and is not easy to rust, thereby extending the service life of the curved bar 5.

[0028] Specifically, the drawing stand 1 is a transparent plastic plate. The drawing stand 1 is made of polyurethane material with good toughness and high strength, and is wear-resistant and corrosion-resistant.

[0029] Specifically, the drawing stand 1 is provided with scale numbers to facilitate measuring the length of the drawn straight line.

[0030] Specifically, one end of the drawing stand 1 is fixedly connected with a hanging ear 13 , and the drawing stand 1 can be conveniently hung up through the hanging ear 13 , so that the drawing stand 1 can be conveniently stored when it is idle.

[0031] The working principle of the present invention is as follows: when in use, the drawing stand 1 is placed in the drawing position, and then the X-axis and Y-axis need to be used to draw along the shape of the axis groove 2. When a curve needs to be drawn, the processing sliding block 10 is moved upward to move the fixed block 12 out of the fixed groove 11, and then the sliding block 10 is moved left or right to change the distance between the first round rod 4 and the second round rod 8, thereby changing the curvature of the curve bar 5. Then, under the elastic force of the pressing spring 9, the fixed block 12 is pushed into the corresponding fixed groove 11, and then the sliding block 10 is fixed, and the curve can be drawn. The method of use is very convenient and quick. The drawing stand 1 can be hung up conveniently through the hanging ear 13, which is convenient for storage of the drawing stand 1 during idle periods.

[0032] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any ordinary technician in this industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with this profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A straight line equation drawing tool, comprising a drawing stand (1), characterized in that: The drawing frame (1) is arranged in a cross shape, and an axis groove (2) is provided on the drawing frame (1) and is arranged in a cross shape in longitudinal section. A sliding groove (6) is provided on each of two opposite side walls of the drawing frame (1) and a U-shaped block (3) is fixedly connected thereto. A first round rod (4) is fixedly connected to the inner side wall of each U-shaped block (3). A sliding block (10) is slidably connected in the sliding groove (6), and a groove (7) is provided on the upper end of the sliding block (10). A second round rod (8) is fixedly connected to the side wall of the groove (7), a curved bar (5) is provided between the second round rod (8) and the first round rod (4), a pressure spring (9) is sleeved on the sliding block (10), and the two ends of the pressure spring (9) respectively abut against the side wall of the sliding block (10) and the inner side wall of the sliding groove (6), a fixed block (12) is fixedly connected to the bottom side wall of the sliding block (10), and a plurality of fixed grooves (11) are provided on the sliding groove (6).

2. A straight line equation drawing tool according to claim 1, characterized in that: The longitudinal sections of the sliding block (10) and the sliding groove (6) are both convex.

3. A straight line equation drawing tool according to claim 2, characterized in that: The curved strip (5) is made of stainless steel.

4. A straight line equation drawing tool according to claim 3, characterized in that: The drawing stand (1) is a transparent plastic plate.

5. A straight line equation drawing tool according to claim 4, characterized in that: The drawing stand (1) is provided with scale numbers.

6. A straight line equation drawing tool according to claim 5, characterized in that: One end of the drawing frame (1) is fixedly connected to a hanging ear (13).

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