Adjustable curve drawing device

Abstract

The utility model relates to an adjustable curve drawing device which comprises a first ruler body and a second ruler body, the two ends of the first ruler body are connected with the second ruler body through rotating mechanisms, one end of the first ruler body is provided with a positioning mechanism, the upper side face of one end of the second ruler body is provided with a square inserting hole, and the square inserting hole is communicated with the positioning mechanism. The front end face of the first ruler body is fixedly connected with an iron plate, and the front end face of the second ruler body is fixedly connected with a magnet connected with the iron plate in an attraction mode. According to the adjustable curve drawing device, the size of the whole device can be reduced, so that a user can store and carry the device conveniently, and the adjustable curve drawing device is practical.

Description

Technical Field

[0001] This utility model relates to the field of drawing technology, and in particular to an adjustable curve drawing device. Background Technology

[0002] Currently, drawing tools have become indispensable teaching tools for teachers. Teachers usually carry drawing tools such as rulers and protractors, but too many drawing tools make it inconvenient for teachers to handle. There is a need for a tool that is easy to handle and can combine two drawing methods, so that this tool has the functions of both a ruler and a protractor.

[0003] The published patent document with publication number CN218702396U discloses a drawing tool, including a ruler, a first semicircular plate fixedly installed on one side of the ruler, a second semicircular plate fixedly installed on one side of the ruler, and a third semicircular plate fixedly installed on one side of the ruler, with the second and third semicircular plates located between the ruler and the first semicircular plate.

[0004] However, the above-mentioned drawing tools still have shortcomings in use. The overall size of the drawing tools is fixed and cannot be adjusted to a smaller size to facilitate the storage and carrying of the entire drawing tool. Therefore, we propose an adjustable curve drawing device. Utility Model Content

[0005] This invention provides an adjustable curve drawing device, which solves the technical problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] An adjustable curve drawing device includes a ruler body one and a ruler body two. Both ends of the ruler body one are connected to the ruler body two through a rotating mechanism. A positioning mechanism is provided at one end of the ruler body one. A square insertion hole is opened on the upper side of one end of the ruler body two. An iron plate is fixedly connected to the front end face of the ruler body one. A magnet that is attracted and connected to the iron plate is fixedly connected to the front end face of the ruler body two.

[0008] A further improvement of the present invention is that the rotating mechanism includes a rotating frame, the rotating frame is fixedly connected to the front end face of the first ruler body, and an L-shaped rotating plate is rotatably connected inside the rotating frame, one end of the L-shaped rotating plate being fixedly connected to the front end face of the second ruler body.

[0009] A further improvement of the present invention is that the positioning mechanism includes an L-shaped plate, which is fixedly connected to the upper side of the ruler body, and a square insert is provided inside the L-shaped plate.

[0010] A further improvement of this utility model is that: the square insert plate is inserted into the inside of the square insertion hole, and a threaded groove is provided on the upper end face of the square insert plate, and a trapezoidal lead screw is threaded into the inside of the threaded groove.

[0011] A further improvement of this utility model is that: a limiting bearing is provided at the upper end of the L-shaped plate, which penetrates the L-shaped plate and is fixedly connected to the penetration part, and the trapezoidal lead screw is fixedly connected to the inside of the limiting bearing.

[0012] A further improvement of this utility model is that: a rotating cap is fixedly connected to the upper end of the trapezoidal lead screw, a limiting groove is opened on one side of the interior of the L-shaped plate, a limiting slider is slidably connected to the inner wall of the limiting groove, and one end of the limiting slider is fixedly connected to the square insert plate.

[0013] The beneficial effects of this utility model are as follows: This utility model provides an adjustable curve drawing device, which has the following advantages:

[0014] Through the action of an iron plate, magnet, rotating frame, L-shaped rotating plate, L-shaped plate, rotating cap, trapezoidal lead screw, limit bearing, limit groove, limit slider, threaded groove, square insert plate, and square insertion hole, the trapezoidal lead screw rotates under the action of the limit bearing via the rotating cap, and the square insert plate rises under the action of the threaded groove, separating the square insert plate from the square insertion hole. The limit slider and limit groove can limit the rise of the square insert plate. After the square insert plate separates from the square insertion hole, the ruler body one can rotate towards ruler body two under the action of the rotating frame and L-shaped rotating plate, until the iron plate and magnet are attracted. This allows the size of the entire device to be reduced, making it easier for users to carry and store, thus improving its practicality.

[0015] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0017] Figure 1 A schematic diagram of the structure of an adjustable curve drawing device provided in an embodiment of the present invention;

[0018] Figure 2 for Figure 1An enlarged schematic diagram of the structure at point A in an adjustable curve drawing device is provided.

[0019] Figure 3 for Figure 1 A schematic diagram of a partial structure in an adjustable curve drawing device is provided.

[0020] Figure 4 for Figure 1 A partial structural cross-sectional schematic diagram of an adjustable curve drawing device is provided.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Ruler body one; 2. Rotating mechanism; 21. Rotating frame; 22. L-shaped rotating plate; 3. Ruler body two; 4. Iron plate; 5. Magnet; 6. Square insertion hole; 7. Positioning mechanism; 71. L-shaped plate; 72. Rotating cap; 73. Trapezoidal lead screw; 74. Limit bearing; 75. Limit slide groove; 76. Limit slider; 77. Threaded groove; 78. Square insertion plate. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-4 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0024] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] Example 1

[0027] like Figure 1-4 As shown, this utility model provides an adjustable curve drawing device, including a ruler body 1 and a ruler body 3. Both ends of the ruler body 1 are connected to the ruler body 3 through a rotating mechanism 2. A positioning mechanism 7 is provided at one end of the ruler body 1. A square insertion hole 6 is opened on the upper side of one end of the ruler body 3. An iron plate 4 is fixedly connected to the front end of the ruler body 1. A magnet 5 that is attracted and connected to the iron plate 4 is fixedly connected to the front end of the ruler body 3.

[0028] In this embodiment, the rotating mechanism 2 allows the ruler body 1 and the ruler body 3 to rotate, the positioning mechanism 7 allows the ruler body 1 and the ruler body 3 to be connected in a limited position, and the magnet 5 and the iron plate 4 allow the ruler body 1 and the ruler body 3 to be attracted and connected, making it easy to store and carry.

[0029] Example 2

[0030] like Figure 1-4 As shown, based on Embodiment 1, this utility model provides a technical solution. Preferably, the rotating mechanism 2 includes a rotating frame 21, which is fixedly connected to the front end face of the ruler body 1. An L-shaped rotating plate 22 is rotatably connected inside the rotating frame 21, and one end of the L-shaped rotating plate 22 is fixedly connected to the front end face of the ruler body 3.

[0031] In this embodiment, the L-shaped rotating plate 22 and the rotating frame 21 allow the ruler body 1 and the ruler body 3 to rotate, making it easier to reduce the overall size of the device and facilitate subsequent storage and handling by the user.

[0032] Example 3

[0033] like Figure 1-4 As shown, based on Embodiment 1, this utility model provides a technical solution. Preferably, the positioning mechanism 7 includes an L-shaped plate 71, which is fixedly connected to the upper side of the ruler body 1. A square insert plate 78 is provided inside the L-shaped plate 71, which is inserted into the square insertion hole 6. A threaded groove 77 is provided on the upper end face of the square insert plate 78, and a trapezoidal screw rod 73 is threadedly connected inside the threaded groove 77. A limiting bearing 74 is provided at the upper end of the L-shaped plate 71, which passes through the L-shaped plate 71 and is fixedly connected to the through part. The trapezoidal screw rod 73 is fixedly connected to the inside of the limiting bearing 74. A rotating cap 72 is fixedly connected to the upper end of the trapezoidal screw rod 73. A limiting groove 75 is provided on one side inside the L-shaped plate 71, and a limiting slider 76 is slidably connected to the inner wall of the limiting groove 75. One end of the limiting slider 76 is fixedly connected to the square insert plate 78.

[0034] In this embodiment, the trapezoidal lead screw 73 is rotated by the rotating cap 72 under the action of the limiting bearing 74, and the square insert plate 78 is raised by the action of the threaded groove 77, so that the square insert plate 78 is separated from the square insertion hole 6, and the limiting relationship between the ruler body 1 and the ruler body 2 is released, so that the ruler body 1 and the ruler body 2 can rotate. The square insert plate 78 can be limited to rise by the limiting slider 76 and the limiting groove 75.

[0035] The specific working principle and usage method of this utility model are as follows:

[0036] This utility model provides an adjustable curve drawing device, such as... Figure 1-4 As shown, curve drawing can be performed using the outer arc-shaped sides of ruler body 1 and ruler body 2 3, and straight line drawing can be performed using the lower straight sides of ruler body 1 and ruler body 2 3. When the size of the entire device needs to be reduced for easy storage and carrying, the trapezoidal lead screw 73 is rotated by rotating the rotating cap 72 under the action of the limiting bearing 74. The square insert plate 78 is raised by the action of the threaded groove 77, separating the square insert plate 78 from the square insertion hole 6. The square insert plate 78 can be limited to rise by the limiting slider 76 and the limiting groove 75. After the square insert plate 78 is separated from the square insertion hole 6, ruler body 1 can be rotated towards ruler body 2 3 by the action of the rotating frame 21 and the L-shaped rotating plate 22. The rotation is until the iron plate 4 is attracted to the magnet 5, thereby reducing the size of the entire device, making it easier for users to carry and store the entire device, and improving its practicality.

[0037] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. An adjustable curve drawing device comprising a first ruler (1) and a second ruler (3), characterized in that, Both ends of the ruler body one (1) are connected with the ruler body two (3) through rotating mechanisms (2), one end of the ruler body one (1) is provided with a positioning mechanism (7), a square insertion hole (6) is formed in the upper side of one end of the ruler body two (3), the front end surface of the ruler body one (1) is fixedly connected with an iron plate (4), and the front end surface of the ruler body two (3) is fixedly connected with a magnet (5) which is attractedly connected with the iron plate (4).

2. An adjustable curve plotting device according to claim 1, wherein, The rotating mechanism (2) comprises a rotating frame (21), the rotating frame (21) is fixedly connected with the front end surface of the ruler body one (1), and the inside of the rotating frame (21) is rotatably connected with an L-shaped rotating plate (22), one end of the L-shaped rotating plate (22) is fixedly connected with the front end surface of the ruler body two (3).

3. The adjustable curve plotting device of claim 1, wherein, The positioning mechanism (7) comprises an L-shaped plate (71), the L-shaped plate (71) is fixedly connected with the upper side of the ruler body one (1), and the inside of the L-shaped plate (71) is provided with a square insertion plate (78).

4. An adjustable curve plotting device according to claim 3, wherein, The square insertion plate (78) is inserted into the inside of the square insertion hole (6), the upper end surface of the square insertion plate (78) is provided with a threaded groove (77), and the threaded groove (77) is screwedly connected with a trapezoidal lead screw (73).

5. An adjustable curve plotting device according to claim 4, wherein, The upper end of the L-shaped plate (71) is provided with a limiting bearing (74) which penetrates through the L-shaped plate (71) and is fixedly connected with the penetrating part, and the trapezoidal lead screw (73) is fixedly connected with the inside of the limiting bearing (74).

6. An adjustable curve plotting device according to claim 5, wherein, The upper end of the trapezoidal lead screw (73) is fixedly connected with a rotating cap (72), one side of the inside of the L-shaped plate (71) is provided with a limiting sliding groove (75), the inside wall of the limiting sliding groove (75) is slidably connected with a limiting sliding block (76), and one end of the limiting sliding block (76) is fixedly connected with the square insertion plate (78).

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