Multipurpose teaching ruler

Abstract

The utility model provides a multipurpose teaching ruler which comprises a body and a plurality of magnetic replacement parts, a groove is formed in the long edge of one side of the body, the bottom of the groove and the surface of the long edge are coated with magnetic coatings, a plurality of inserting grooves are formed in the surface of one side wall of the body, the inserting grooves and the groove are the same in shape, and the magnetic replacement parts are arranged in the inserting grooves. The bottom of the slot and the surface of the body are coated with magnetic coatings, one magnetic replacement part is inserted into the groove, and the other magnetic replacement parts are inserted into the slot respectively; the magnetic replacement part comprises a profiling part and an inserting part, and positioning steps are formed by the two ends of the inserting part and the profiling part; scale marks are arranged on the long side, corresponding to the side different from the side of the groove, of the body. The teaching ruler provided by the utility model adopts a combined structure, the magnetic replacement parts are magnetically adsorbed in the grooves or the slots of the body, the teaching ruler is very convenient to use and carry, when the teaching ruler is used, only the magnetic replacement parts with required shapes need to be inserted into the grooves of the long edges, and other magnetic replacement parts are standby.

Description

Technical Field

[0001] The invention belongs to the field of mathematics research and education, and in particular relates to a multi-purpose teaching ruler. Background Art

[0002] In the process of mathematics teaching, teachers need to draw lines of different shapes (such as straight lines, wavy lines, jagged lines, etc.) or different widths. In the prior art, most common rulers have only one shape. Although some rulers have one shape on each of the two long sides, they still cannot meet the diverse teaching needs. Therefore, when drawing figures of different line types, different rulers are usually required. Carrying rulers of multiple shapes at the same time is not only troublesome, but also inconvenient to carry. Once there is omission in the preparation before class, the class may not be taught in the predetermined way, resulting in reduced teaching effect. Therefore, it is necessary to make improvements. Summary of the invention

[0003] In view of this, the present invention aims to overcome the defects in the prior art and proposes a multi-purpose teaching ruler.

[0004] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0005] A multi-purpose teaching ruler comprises a body and a plurality of magnetic replacement parts. A groove is provided on a long side of the body, and a magnetic coating is applied to the groove bottom and the surface of the long side. A plurality of slots are provided on a side wall surface of the body, and each slot has the same shape as the groove, and the groove bottom and the surface of the body are coated with a magnetic coating. One magnetic replacement part is inserted into the groove, and the other magnetic replacement parts are inserted into the slots respectively. The magnetic replacement part comprises a profiling part and an inserting part, and the two ends of the inserting part form positioning steps with the profiling component. The inserting parts of the magnetic replacement parts have the same shape, while the profiling parts have different shapes. A scale mark is provided on the body corresponding to the long side different from the groove side.

[0006] Furthermore, the number of the slots is 2-5.

[0007] Furthermore, the contoured portion of each magnetic replacement component includes but is not limited to a wave shape and a sawtooth shape.

[0008] Furthermore, the length of the magnetic replacement part is the same as the length of the main body.

[0009] Furthermore, all the corners of the body are rounded.

[0010] Furthermore, all the corners of the magnetic replacement part are rounded.

[0011] Furthermore, each magnetic replacement part has a scale mark on its contoured portion.

[0012] Furthermore, the thickness of each magnetic replacement part is the same as the thickness of the main body.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] The teaching ruler provided by the invention adopts a combined structure, and the magnetic replacement parts are magnetically adsorbed in the grooves or slots of the main body, which is very convenient to use and carry. When using, you only need to insert the magnetic replacement parts of the required shape into the grooves of the long sides, and other magnetic replacement parts are kept for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 A schematic diagram of the structure created by the present invention;

[0017] Figure 2 for Figure 1 Schematic diagram of removing the magnetic replacement part in the slot;

[0018] Figure 3 A schematic diagram of the structure of the invention;

[0019] Figure 4 This is a schematic diagram of an embodiment of the present invention when a notch and a rotating shaft are provided;

[0020] Figure 5 A schematic diagram of a magnetic replacement part in the invention;

[0021] Figure 6 It is a cross-sectional view of the body in the invention;

[0022] Figure 7 It is a schematic diagram of the three-dimensional structure of the magnetic replacement part in the invention. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0025] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0026] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0027] A multi-purpose teaching ruler, such as Figures 1 to 7 As shown, it includes a main body 1 and several magnetic replacement parts 2, a groove 3 is opened on the long side of one side of the main body, and the bottom of the groove and the surface of the long side are coated with a magnetic coating, and several slots 4 are opened on the side wall surface of the main body, each slot has the same shape as the groove, and the bottom of the slot and the surface of the main body are coated with a magnetic coating, one of the magnetic replacement parts is inserted into the groove, and the remaining magnetic replacement parts are inserted into the slots respectively; the magnetic replacement part includes a profiling part 5 and an inserting part 6, and the two ends of the inserting part form a positioning step 7 with the profiling component, the inserting parts of each magnetic replacement part have the same shape, and the profiling parts are different in shape; a scale mark 8 is provided on the main body corresponding to the long side different from the groove side.

[0028] For example, the number of slots is 2-5, and the number of magnetic replacement parts is the same as the number of slots, or one more than the number of slots, that is, one of the magnetic replacement parts is inserted into the groove of the long side of the body. Of course, when the number of magnetic replacement parts is the same as the number of slots, it is more convenient to quickly replace the magnetic replacement parts.

[0029] The contoured parts of each magnetic replacement part include but are not limited to wave shape and sawtooth shape. As an example, the wave shape can be further divided into long wave shape and short wave line, and the sawtooth shape can be further divided into triangular sawtooth shape, arc sawtooth shape and flat sawtooth shape.

[0030] In an optional embodiment, a notch is provided at one end of the main body, and a rotating shaft is installed at the notch. A safety rope can be tied to the rotating shaft to prevent the ruler from accidentally falling off, which is very convenient to use. Of course, other auxiliary gripping structures can also be installed on the rotating shaft. In this solution, the design of the notch and the rotating shaft lays a structural foundation for more convenient use and carrying of the teaching ruler.

[0031] The thickness of each magnetic replacement part is the same as that of the main body, and the length of the magnetic replacement part is the same as that of the main body, which is not obtrusive and has good integrity when used in combination. The corners of the main body are rounded, and the corners of the magnetic replacement part are rounded. The contoured part of each magnetic replacement part is provided with scale marks, which is very convenient for intuitively determining the size of the drawn pattern.

[0032] As an example, the magnetic coating is made of magnetic materials such as iron powder, iron oxide particles, etc. mixed with glue, and is evenly coated on the bottom of the groove and the surface of the long side where the groove is located, so that the side of the body has magnetism, which can generate an adsorption force on the replacement part (the bottom surface of the insertion part), ensuring that the replacement part and the body are stably matched and not easy to fall off. Similarly, the bottom of the functional groove is also coated with a magnetic coating, and the replacement part temporarily stored on the surface of the main body also maintains a stable matching relationship with the main body, which can effectively prevent it from falling off.

[0033] The teaching ruler provided by the invention adopts a combined structure, and the magnetic replacement parts are magnetically adsorbed in the grooves or slots of the main body, which is very convenient to use and carry. When using, you only need to insert the magnetic replacement parts of the required shape into the grooves of the long sides, and other magnetic replacement parts are kept for use.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-purpose teaching ruler, characterized in that: It includes a main body and several magnetic replacement parts. A groove is opened on the long side of one side of the main body, and the bottom of the groove and the surface of the long side are coated with a magnetic coating. Several slots are opened on the side wall surface of the main body. The shape of each slot is the same as that of the groove, and the bottom of the slot and the surface of the main body are coated with a magnetic coating. One magnetic replacement part is inserted into the groove, and the remaining magnetic replacement parts are inserted into the slots respectively; the magnetic replacement part includes a profiling part and an insertion part, and the two ends of the insertion part form positioning steps with the profiling component. The insertion parts of each magnetic replacement part have the same shape, while the shapes of the profiling parts are different; scale marks are provided on the main body corresponding to the long side different from the groove side.

2. A multi-purpose teaching ruler according to claim 1, characterized in that: The number of the slots is 2-5.

3. The multi-purpose teaching ruler according to claim 1, characterized in that: The contoured portion of each magnetic replacement element includes, but is not limited to, a wave shape and a sawtooth shape.

4. The multi-purpose teaching ruler according to claim 1, characterized in that: The length of the magnetic replacement part is the same as the length of the main body.

5. The multi-purpose teaching ruler according to claim 1, characterized in that: All the corners of the main body are rounded.

6. The multi-purpose teaching ruler according to claim 1, characterized in that: Each corner of the magnetic replacement part is rounded.

7. The multi-purpose teaching ruler according to claim 1, characterized in that: Each magnetic replacement part has scale markings on its contoured portion.

8. The multi-purpose teaching ruler according to claim 1, characterized in that: The thickness of each magnetic replacement part is the same as the thickness of the main body.

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