Material anisotropy and isotropy experiment teaching aid for oral cavity material teaching

Abstract

The utility model discloses a material anisotropy and isotropy experiment teaching aid for oral cavity material teaching, which comprises a shell, a plurality of first connecting units and / or a plurality of second connecting units are arranged in the shell, the first connecting units are transversely and longitudinally arranged in rows at equal intervals after being connected during material isotropy display, and the second connecting units are arranged in rows at equal intervals after being connected with the first connecting units. During material anisotropy display, the first connecting units are longitudinally or transversely arranged in rows, the second connecting units are arranged between every two adjacent rows of first connecting units, and a cover plate is arranged at the top of the shell. According to the material anisotropy and isotropy experiment teaching aid for oral cavity material teaching, a microstructure form of material anisotropy and material isotropy is realized through field assembly in the form of props, and the principle that the macroscopic mechanical property of a material is changed due to the change of the arrangement of a surrounding structure is displayed to students.

Description

Technical Field

[0001] The utility model belongs to the technical field of teaching experimental teaching aids, and relates to an experimental teaching aid for material anisotropy and isotropy used for oral material teaching. Background Art

[0002] In the field of dental material teaching, the study of material anisotropy and isotropy is involved. The isotropy of a material refers to the property that the physical and mechanical properties of a material will not change due to different directions, that is, the performance values ​​measured in different directions are the same. This material is an isotropic material, such as mixed short fiber injection molding materials. The anisotropy of a material refers to the fact that the physical and mechanical properties of a material have different results in different directions, that is, there are differences in the performance values ​​measured in different directions. For example, unidirectional fiber cloth reinforced plastics.

[0003] The isotropy and anisotropy of materials are mainly caused by the microstructure of the materials. However, it is difficult to observe the microstructure of materials with the naked eye. Therefore, it is difficult for students to understand what kind of microstructure will bring about changes in material isotropy and anisotropy during teaching, making the teaching seem rather abstract. Utility Model Content

[0004] The purpose of the utility model is to provide an experimental teaching aid for material anisotropy and isotropy for teaching oral materials, which realizes the microstructural morphology of material isotropy and material anisotropy through on-site assembly in the form of props, and shows students the principle that the macroscopic mechanical properties of a material change due to the arrangement of the surrounding structure.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an experimental teaching aid for material anisotropy and isotropy for teaching oral materials, comprising a shell, in which a plurality of first connection units and / or a plurality of second connection units are arranged, wherein when the material is isotropically displayed, the first connection units are connected and arranged in rows with equal spacing in the horizontal and vertical directions, and when the material is anisotropically displayed, the first connection units are arranged in rows in the vertical or horizontal directions, and the second connection units are arranged between two adjacent rows of first connection units, and a cover plate is provided on the top of the shell.

[0006] As a preferred technical solution of the present invention, both the first connecting unit and the second connecting unit are columnar.

[0007] As a preferred technical solution of the utility model, magnetic adsorption parts are provided at both ends of the first connecting unit and the second connecting unit, and the magnetic adsorption parts are magnetically adsorbed and connected to the connecting unit and the inner wall of the shell.

[0008] As a preferred technical solution of the present utility model, the shell is a cube.

[0009] As a preferred technical solution of the present invention, the cover plate is a transparent cover plate.

[0010] The beneficial effects of the utility model are as follows: the utility model is an experimental teaching aid for material anisotropy and isotropy for teaching oral materials, which concretizes the microstructure of the material, and manually completes the arrangement of the first connecting unit and the second connecting unit to show students what kind of microstructure will lead to the change principle of material anisotropy and material isotropy, thereby concretizing the abstract teaching principle and facilitating students' understanding. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0012] Figure 1 It is a schematic diagram of the structure of the experimental teaching aids for the anisotropy and isotropy of materials used in the teaching of oral materials of the utility model when the isotropy is carried out;

[0013] Figure 2 yes Figure 1 A connection diagram of the first connection unit;

[0014] Figure 3 yes Figure 1 A top view of

[0015] Figure 4 It is a schematic diagram of the structure displayed when the experimental teaching aids of the anisotropy and isotropy of the material used for teaching oral materials of the utility model are anisotropic;

[0016] Figure 5 yes Figure 4 A schematic diagram of connection between a first connection unit and a second connection unit;

[0017] Figure 6 yes Figure 4 Top view of the .

[0018] In the figure: 1. housing, 2. first connecting unit, 3. second connecting unit. DETAILED DESCRIPTION

[0019] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0020] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0021] Example 1

[0022] The utility model provides an experimental teaching aid for material anisotropy and isotropy for oral material teaching, comprising a shell 1, wherein a plurality of first connection units 2 and / or a plurality of second connection units 3 are arranged in the shell 1.

[0023] like Figure 1 As shown, the experimental teaching aids of material anisotropy and isotropy for teaching oral materials of the utility model, when the material is isotropic, each first connection unit 2 is arranged in rows with equal spacing horizontally and vertically after connection, and when the material is anisotropic, each first connection unit 2 is arranged in rows vertically, and a cover plate is provided on the top of the outer shell 1 (removed in the figure to facilitate observation of the internal structure).

[0024] Combination Figure 2 and Figure 3 During assembly, students connect the first connection units 1 in sequence as shown in the figure, ensuring that the intervals of the horizontal and vertical rows are consistent, and that a square is formed between each four adjacent first connection units 1. This state is a typical microstructure displayed when the material is isotropic.

[0025] The structure formed by this teaching aid can be subjected to relevant mechanical property tests so that students can understand that the mechanical property test results reflected on this structure are consistent.

[0026] Obviously, the experimental teaching aid of material anisotropy and isotropy for teaching oral materials of the utility model concretizes the microstructure of the material, and shows students the principle of changes in material anisotropy and material isotropy by manually completing the arrangement of the first connecting unit 2 and the second connecting unit 3, thereby concretizing the abstract teaching principle and facilitating students' understanding.

[0027] Example 2

[0028] like Figure 4 As shown, the experimental teaching aid of material anisotropy and isotropy for oral material teaching of the present invention mainly comprises a shell 1, in which a plurality of first connecting units 2 and / or a plurality of second connecting units 3 are arranged.

[0029] like Figure 4As shown, the experimental teaching aids of material anisotropy and isotropy for teaching oral materials of the utility model, when demonstrating the anisotropy of the material, each first connection unit 2 is arranged in a row horizontally, each second connection unit 3 is arranged between two adjacent rows of first connection units 2, and a cover plate is provided on the top of the outer shell 1 (removed in the figure to facilitate observation of the internal structure).

[0030] Combination Figure 5 and Figure 6 During assembly, students connect the first connection units 1 in sequence as shown in the figure. To facilitate consistent assembly, the spacing between the horizontal rows can be consistent, and a parallelogram is formed between each adjacent two first connection units 2 and two second connection units 3. This state is a typical microstructure displayed when the material is anisotropic.

[0031] The structure formed by this teaching aid can be subjected to relevant mechanical property tests so that students can understand that there are differences in the mechanical property test results reflected on this structure.

[0032] Obviously, the experimental teaching aid of material anisotropy and isotropy for teaching oral materials of the utility model concretizes the microstructure of the material, and shows students the principle of changes in material anisotropy and material isotropy by manually completing the arrangement of the first connecting unit 2 and the second connecting unit 3, thereby concretizing the abstract teaching principle and facilitating students' understanding.

[0033] Example 3

[0034] like Figure 1 and Figure 4 As shown, the rest are the same as the above-mentioned embodiment. What is different from the above-mentioned embodiment is that, in the experimental teaching aids of anisotropy and isotropy of oral materials for teaching of the utility model, the first connecting unit 2 and the second connecting unit 3 are both cylindrical. This design facilitates assembly design, and students can easily complete the assembly during the operation so as to deepen their understanding.

[0035] Example 4

[0036] like Figure 1 and Figure 4 As shown, the rest are the same as the above-mentioned embodiments. What is different from the above-mentioned embodiments is that, in the experimental teaching aids of anisotropy and isotropy of materials for teaching oral materials of the utility model, magnetic adsorption parts are provided at both ends of the first connecting unit 2 and the second connecting unit 3, and the magnetic adsorption parts are magnetically adsorbed and connected to the first connecting unit 2, the second connecting unit 3 and the inner wall of the outer shell 1 respectively, so as to facilitate the assembly between the first connecting unit 2, the second connecting unit 3 and the outer shell 1, and the operation is relatively convenient, and it is also convenient for subsequent disassembly and re-conducting the next experiment.

[0037] Example 5

[0038] like Figure 1 and Figure 4 As shown, the rest is the same as the above embodiment. What is different from the above embodiment is that in the experimental teaching aids for anisotropy and isotropy of oral materials used for teaching of the utility model, the outer shell 1 is preferably a cube, which is convenient for experiments; the cover plate is preferably a transparent cover plate, which is convenient for students to observe the internal structure.

[0039] The above description shows and describes several preferred embodiments of the utility model, but as mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art shall be within the scope of protection of the claims attached to the utility model without departing from the spirit and scope of the utility model.

Claims

1. An experimental teaching aid for anisotropy and isotropy of materials used in teaching oral materials, characterized in that: It comprises a shell, in which a plurality of first connection units and / or a plurality of second connection units are arranged, wherein when the material is displayed isotropically, the first connection units are connected and arranged in rows with equal spacing in the horizontal and vertical directions, and when the material is displayed anisotropically, the first connection units are arranged in rows in the vertical or horizontal directions, and each second connection unit is arranged between two adjacent rows of first connection units, and a cover plate is arranged on the top of the shell.

2. The material anisotropy and isotropy experimental teaching aid for oral material teaching according to claim 1, characterized in that: The first connection unit and the second connection unit are both column-shaped.

3. The material anisotropy and isotropy experimental teaching aid for oral material teaching according to claim 2, characterized in that: Magnetic adsorption parts are provided at both ends of the first connection unit and the second connection unit, and the magnetic adsorption parts are connected to the connection units and the inner wall of the housing by magnetic adsorption.

4. The experimental teaching aid for material anisotropy and isotropy for oral material teaching according to claim 3, characterized in that: The shell is a cube.

5. The experimental teaching aid for material anisotropy and isotropy for oral material teaching according to claim 4, characterized in that: The cover plate is a transparent cover plate.

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