Multifunctional protractor convenient to store

Abstract

The utility model discloses a multifunctional protractor convenient to store, which comprises a protractor body, scale marks are arranged on the protractor body, the protractor body is of a tubular structure, the protractor body is composed of a supporting ruler and a functional ruler, a first fixing cap and a second fixing cap are respectively and fixedly arranged at two ends of the protractor body, and angle scale marks are arranged on the functional ruler. The whole pen container adopts a circular tube-shaped structure, so that the pen container is convenient to store in a pen bag; the multifunctional ruler integrates the functions of a protractor and a vernier caliper besides the functions of line drawing and length measuring of a common ruler, the appearance of the multifunctional ruler is of a tubular structure, and the first fixing cap and the second fixing cap at the two ends facilitate fixing of the supporting ruler and the functional ruler; the protractor can be used for surveying and mapping angles in a measuring range, the vernier caliper can meet the requirement of students for learning to use the vernier caliper for practicing reading, and the vernier caliper is simple in structure, easy to produce and high in functional practicability.

Description

Technical fields:

[0001] This utility model relates to the field of stationery technology, specifically to a multifunctional protractor that is easy to store. Background technology:

[0002] A protractor is an indispensable measuring tool for students during their studies. With the development of modern education, students' learning pressure is increasing day by day, and they need to carry more and more stationery to school.

[0003] Existing protractors are mainly semi-circular or triangular plate-shaped structures, which take up a large area. Students' pencil cases are usually cylindrical, making it impossible to fit triangular or semi-circular protractors. Secondly, existing protractors only have a single angle measurement function. Students need to carry multiple measuring rulers with different functions during daily school hours, and there is no corresponding adapter structure between the various measuring rulers, resulting in a large number of tools to carry, affecting storage and causing inconvenience. In addition, students currently learn to use vernier calipers by relying on school teaching aids and picture examples, with very few opportunities for actual operation. There is a lack of a simple vernier caliper that, while not a high-precision measuring tool, allows for practical operation and can be used by students to practice readings. Utility Model Content:

[0004] In view of this, the purpose of this utility model is to provide a multifunctional protractor that is simple in structure and easy to store.

[0005] The purpose of this utility model is achieved by the following technical solution: a multifunctional protractor that is easy to store, comprising a protractor body, characterized in that the protractor body is a tubular structure, the protractor body is composed of a support ruler and a functional ruler, a first fixing cap and a second fixing cap are respectively fixed at both ends of the protractor body, and the functional ruler has angle scale markings.

[0006] Furthermore, the angle scale markings consist of multiple scale lines.

[0007] Furthermore, on a line passing through the zero point of the angle scale mark and perpendicular to the edge where the zero point is located, there is the center point of the angle scale line.

[0008] Furthermore, the support ruler has a center point mark.

[0009] Furthermore, both ends of the support ruler are provided with connecting parts, and the first fixing cap and the second fixing cap are respectively fixed on the two connecting parts.

[0010] Furthermore, the connecting part is a cylinder with external threads, and the inner walls of the first fixing cap and the second fixing cap are provided with internal threads that are adapted to the connecting part.

[0011] Furthermore, the support ruler is provided with length scale lines, and the second fixing cap is engraved with graduation scale lines.

[0012] Furthermore, the zero point of the graduation mark is the rounded edge of either end of the second fixing cap, and the zero point of the length mark is the rounded edge of the opening end of the first fixing cap.

[0013] Furthermore, at least one of the two long sides of the functional ruler is a straight side, and the length of the straight side is greater than 1 / 2 of the length of the support ruler.

[0014] Advantages of this utility model:

[0015] This utility model protractor adopts a cylindrical structure, making it easy to store in a pencil case. Besides functioning as a regular ruler for drawing lines and measuring length, it integrates the functions of a protractor and a vernier caliper. One end has a thread for easy fixing of the supporting ruler and functional ruler. The thread can be used to extend outwards, for example, by using a pen tip as a fixing structure to achieve the function of a pen, offering a wide range of expansion options. The protractor can measure angles within its range, and the vernier caliper allows students to practice reading angles using a vernier caliper. This utility model has a simple structure, is easy to manufacture, and has high practicality. Attached image description:

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is an exploded view of the present invention;

[0019] Figure 3 This is a schematic diagram of the measuring angle of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the support ruler and the second fixing cap of this utility model.

[0021] In the figure, 1 is the protractor body, 11 is the support ruler, 111 is the center point mark, 112 is the length scale line, 113 is the connecting part, 12 is the functional ruler, 121 is the angle scale mark, 2 is the first fixing cap, 3 is the second fixing cap, and 31 is the graduation scale line. Detailed implementation method:

[0022] 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.

[0023] like Figure 1-4 As shown, this embodiment provides a conveniently stored multifunctional protractor, including a protractor body 1. The protractor body 1 is generally tubular in structure. In this embodiment, the protractor body 1 is a cylindrical body divided in half axially into a support ruler 11 and a functional ruler 12. The radial cross-section of the support ruler 11 and the functional ruler 12 is semi-circular. In addition to the cylindrical structure, the protractor body 1 can also be a polygonal hollow column divided in half axially, namely the support ruler 11 and the functional ruler 12. The functional ruler 12 is provided with angle scale markings 121, which are multiple angle measurement lines. The angle scale lines are located on two edges along the length direction of the functional ruler 12, and the angle represented by two adjacent angle scale lines is 1°. A first fixing cap 2 and a second fixing cap 3 are fixedly provided at both ends of the protractor body 1, respectively. The first fixing cap 2 and the second fixing cap 3 can be directly fitted and fixed to both ends of the protractor body 1. On a line passing through the zero point of the angle scale mark 121 and perpendicular to the edge where the zero point is located, there is a center point of the angle scale line. A center point mark 111 for use with the angle scale line is provided on the support ruler 11. At least one of the two long sides of the functional ruler 12 is a straight side, and the length of the straight side is greater than 1 / 2 of the length of the support ruler 11. In this embodiment, by aligning one end of the support ruler 11 with the zero-degree position of the angle scale line of the functional ruler 12, the support ruler 11 and the functional ruler 12 are placed relatively perpendicularly, and the center point of the angle scale line coincides with the center point mark 111 on the support ruler 11. At this time, the angle between the straight line connecting the center point mark 111 and the angle scale mark and the support ruler 11 is the degree measure of the angle scale line. The protractor of this embodiment has a tubular structure, and its overall structure is simple, making it easy to store and carry.

[0024] Preferably, both ends of the support ruler 11 are provided with connecting portions 113, which are cylinders with external threads. The inner walls of the first fixing cap 2 and the second fixing cap 3 are provided with internal threads that are adapted to the connecting portions 113. The first fixing cap 2 and the second fixing cap 3 are respectively threadedly fixed to the two connecting portions 113. The first fixing cap 2 and the second fixing cap 3 are respectively threadedly connected to the connecting portions 113, and the two ends of the support ruler 11 and the functional ruler 12 are respectively fitted and fixed in the first fixing cap 2 and the second fixing cap 3. The threaded fixation can ensure the stability of the overall structure. In this embodiment, the first fixing cap 2 can adopt a conical structure for fixing the pen tip, and the pen tip is fixed on the first fixing cap 2, so that the multifunctional protractor can also have the function of writing, which greatly improves its practicality.

[0025] Preferably, the support ruler 11 is further provided with a plurality of evenly spaced length graduation lines 112. The length graduation lines 112 are located on two surfaces along the edge of the length direction, and the distance between two adjacent length graduation lines 112 is 0.1 mm. The second fixing cap 3 is provided with a plurality of evenly spaced graduation lines 31. The graduation values ​​of the graduation lines 31 are 10, 20, and 50 divisions. In this embodiment, a 20-division graduation is used. The zero point of the graduation line 31 is the rounded edge of any end of the second fixing cap 3, and the zero point of the length graduation line 112 is the rounded edge of the open end of the first fixing cap 2. In use, the first fixing cap 2 is fixed on the connecting part 113, the second fixing cap 3 is placed on the groove of the support ruler 11, the object to be measured is placed between the first fixing cap 2 and the second fixing cap 3, and the first fixing cap 2 and the second fixing cap 3 are tightened. The second fixing cap 3 is rotated so that the graduation line 31 and the length graduation line 112 come into contact, and finally the length is read. The second fixing cap 3 works in conjunction with the support ruler 11 to realize the function of a vernier caliper, providing students with a simple vernier caliper for practicing reading, thereby enhancing students' learning interest. This utility model also has the functions of measuring angles and lengths.

[0026] It should be noted that relational terms such as "first" and "second" in this article are used only to distinguish different entities or operations and do not necessarily imply an actual relationship or fixed order between these entities or operations. Furthermore, the terms "including," "comprising," and their variations are intended to cover non-exclusive inclusion relationships; that is, when describing an appearance, if it is mentioned that a series of elements are included, the statement is not limited to the explicitly listed elements but also covers other alternative elements not explicitly listed.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 multi-functional protractor that is easy to store, comprising a protractor body, characterized in that, The protractor body is a tubular structure, with a first fixing cap and a second fixing cap fixed at both ends of the protractor body respectively. The protractor body consists of a support ruler and a functional ruler, with angle scale markings on the functional ruler.

2. The multifunctional protractor that is easy to store according to claim 1, characterized in that, The angle scale markings consist of multiple scale lines.

3. A multi-functional protractor that is easy to store according to claim 2, characterized in that, The center point of the angle scale line is located on a line passing through the zero point of the angle scale mark and perpendicular to the edge where the zero point is located.

4. A multi-functional protractor that is easy to store according to claim 3, characterized in that, The support ruler has a center point mark.

5. A multi-functional protractor that is easy to store according to claim 1, characterized in that, Both ends of the support ruler are provided with connecting parts, and the first fixing cap and the second fixing cap are respectively fixed on the two connecting parts.

6. A multi-functional protractor that is easy to store according to claim 5, characterized in that, The connecting part is a cylinder with external threads, and the inner walls of the first fixing cap and the second fixing cap are provided with internal threads that are adapted to the connecting part.

7. A multi-functional protractor that is easy to store according to claim 6, characterized in that, The support ruler has length graduation lines, and the second fixing cap has graduation lines.

8. A multi-functional protractor that is easy to store according to claim 7, characterized in that, The zero point of the graduation mark is the rounded edge of either end of the second fixing cap, and the zero point of the length mark is the rounded edge of the opening end of the first fixing cap.

9. A multi-functional protractor that is easy to store according to claim 4, characterized in that, At least one of the two long sides of the functional ruler is a straight side, and the length of the straight side is greater than 1 / 2 of the length of the support ruler.

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