Light refraction demonstration teaching aid

Abstract

The utility model relates to the technical field of physics teaching, and discloses a light refraction demonstration teaching aid which comprises a teaching aid body. The top of the teaching aid body is provided with a laser pen. The front surface of the teaching aid body is provided with a dial, and the dial comprises a dial rotating outer ring which is fixedly connected to the front surface of the teaching aid body. The dial body is rotationally connected to the inner side wall of the dial rotating outer ring; a circular groove is formed in the center of the disc body, a mirror body mounting assembly is arranged in the circular groove, and the mirror body mounting assembly comprises a mounting rotating outer ring; when the light refraction phenomenon is demonstrated, the shape of the mirror body can be selected according to the need of demonstration, and then the mirror body is inserted into the clamping groove of the mirror body rotating disc through the mirror body fixing disc, so that the mirror body installation assembly can flexibly adjust the demonstrated mirror body, and the demonstration teaching aid can flexibly demonstrate the light refraction phenomenon of a semicircular lens, a convex lens and a concave lens.

Description

TECHNICAL FIELD

[0001] The utility model relates to physical teaching technical field, concretely is a light refraction demonstration teaching aid. BACKGROUND

[0002] Light has many phenomena, such as reflection, refraction, total reflection, diffraction, interference, etc., and the corresponding physical laws are very important in physical teaching. However, not only do these phenomena need certain conditions to form, but the underlying physical knowledge is also very abstract. Therefore, we provide a multifunctional optical test instrument to facilitate students to observe various optical phenomena and read experimental data from them to explore and summarize optical experimental laws. The common light reflection and refraction teaching aid currently uses a semi-cylindrical container made of transparent material to hold liquid, and an angle protractor is added inside the semi-cylindrical container or a scale disc is attached to the periphery of the semi-cylindrical container to read the incident angle and the refraction angle.

[0003] For example, Chinese utility model patent CN111554164A proposes a physical optics demonstration teaching aid, which includes a mounting plate, a rotating shaft, a first support, a first laser pen, a second support, a second laser pen, a transparent liquid tank and a scale disc. The rotating shaft is arranged on the back of the mounting plate, the first end of the first support is rotatably connected with the rotating shaft, the second end of the first support extends to the front of the mounting plate, and the first laser pen is arranged on the second end of the first support. The first end of the second support is rotatably connected with the rotating shaft, the second end of the second support extends to the front of the mounting plate, and the second laser pen is arranged on the second end of the second support. The transparent liquid tank is arranged on the front of the mounting plate, and the scale disc is arranged in the transparent liquid tank. The transparent liquid tank can hold liquid, the light emitted by the first laser pen or the second laser pen is reflected and refracted in the liquid, and the scale disc is used to indicate the deflection angle of the light path.

[0004] In the prior art, a semi-cylindrical tank is used to demonstrate light refraction phenomena, but the light refraction phenomena of the lens also need to be demonstrated separately using other teaching aids, which is relatively troublesome. UTILITY MODEL CONTENT

[0005] (I) Technical problem solved

[0006] In view of the deficiencies of the prior art, the utility model provides a light refraction demonstration teaching aid, which has the advantages of being able to flexibly adjust the demonstration mirror body, so that the demonstration teaching aid can flexibly demonstrate the light refraction phenomena of semi-cylindrical lenses, convex lenses and concave lenses, solving the problem that the light refraction phenomena of the lens also need to be demonstrated separately using other teaching aids, which is relatively troublesome.

[0007] (II) Technical scheme

[0008] In order to achieve the above object, the utility model provides the following technical scheme: a light refraction demonstration teaching aid, including teaching aid body,

[0009] The top of the teaching aid body is equipped with a laser pointer;

[0010] The front surface of the teaching aid body is equipped with a dial, which includes a dial rotating outer ring fixedly connected to the front surface of the teaching aid body, a disc body rotatably connected to the inner side wall of the dial rotating outer ring;

[0011] A circular groove is formed at the center position of the disc body, and a mirror body mounting assembly is arranged in the circular groove, the mirror body mounting assembly includes an installation rotating outer ring inserted into the circular groove of the disc body, a mirror body rotating disc rotatably connected to the inner side wall of the installation rotating outer ring, a rotating knob fixedly connected to one side of the mirror body rotating disc, a clamping groove formed on one side of the mirror body rotating disc, and a magnet arranged on the outer side wall of the clamping groove.

[0012] Preferably, the teaching aid body includes a base, a mounting seat fixedly connected to the top of the base, and a display board fixedly connected to the top of the base.

[0013] Preferably, the laser pointer has three mutually parallel light sources.

[0014] Preferably, the mirror body mounting assembly further includes a mirror body fixing disc inserted into one side of the mirror body rotating disc, an iron sheet fixedly connected to one side of the mirror body fixing disc, and a mirror body fixedly connected to the outer side wall of the mirror body fixing disc.

[0015] Preferably, the mirror body is a transparent semicylinder.

[0016] Preferably, the mirror body is a lens.

[0017] (Three) beneficial effects

[0018] Compared with the prior art, the utility model provides a light refraction demonstration teaching aid, which has the following beneficial effects:

[0019] 1. The light refraction demonstration teaching aid, by setting up a mirror body mounting assembly, the mirror body mounting assembly is composed of an installation rotating outer ring, a mirror body rotating disc, a rotating knob, a clamping groove, a magnet, a mirror body fixing disc, an iron sheet and a mirror body, when demonstrating the light refraction phenomenon, the shape of the mirror body can be selected according to the needs of the demonstration, and then the mirror body is inserted into the clamping groove of the mirror body rotating disc through the mirror body fixing disc, so that the mirror body mounting assembly can flexibly adjust the demonstrated mirror body, and the demonstration teaching aid can flexibly demonstrate the light refraction phenomenon of semicircular lenses, convex lenses and concave lenses. DRAWINGS

[0020] Figure 1 It is a structural schematic view of the utility model.

[0021] Figure 2 It is the structure schematic view of the dial of the utility model;

[0022] Figure 3 It is the structure schematic view of the mirror body mounting assembly of the utility model;

[0023] Figure 4 It is the sectional view of the mirror body mounting assembly of the utility model.

[0024] In the drawing:

[0025] 10, teaching aid body; 11, base; 12, mounting seat; 13, display board;

[0026] 20, laser pen;

[0027] 30, dial; 31, dial rotating outer ring; 32, disc body;

[0028] 40, mirror body mounting assembly; 41, mounting rotating outer ring; 42, mirror body rotating disc; 43, rotating knob; 44, clamping groove; 45, magnet; 46, mirror body fixing disc; 47, iron sheet; 48, mirror body. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0030] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement condition and the like between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0031] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixing" and the like should be understood broadly, for example, "fixing" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through intermediate medium; can be internal connection of two elements or interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] In addition, the description such as "first", "second" and the like in the present application is only for the purpose of description and cannot be understood as indicating or implying the relative importance of the technical features indicated or implying the number of technical features indicated. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the present application.

[0033] In the related art, a semicircular groove is used to demonstrate the light refraction phenomenon, but the light refraction phenomenon of the lens also needs to be separately demonstrated by using other teaching aids, which is relatively troublesome.

[0034] In order to solve the problems in the related art to some extent, the present application provides a light refraction demonstration teaching aid, which comprises a mirror body mounting assembly, the mirror body mounting assembly comprises a mounting rotating outer ring, a mirror body rotating disc, a rotating knob, a clamping groove, a magnet, a mirror body fixing disc, an iron sheet and a mirror body. When demonstrating the light refraction phenomenon, the shape of the mirror body can be selected according to the needs of the demonstration, and then the mirror body is inserted into the clamping groove of the mirror body rotating disc through the mirror body fixing disc, so that the mirror body mounting assembly can flexibly adjust the demonstrated mirror body, and the demonstration teaching aid can flexibly demonstrate the light refraction phenomenon of the semicircular lens, the convex lens and the concave lens.

[0035] The present application will be described below in conjunction with the drawings and specific embodiments:

[0036] In conjunction with Figures 1-4 , the present application provides a light refraction demonstration teaching aid, which comprises a teaching aid body 10, the teaching aid body 10 comprises a base 11, a mounting seat 12 fixedly connected to the top of the base 11, a display board 13 fixedly connected to the top of the base 11,

[0037] The teaching aid body 10 is composed of the base 11, the mounting seat 12 and the display board 13, the display board 13 is fixed on the base 11 through the mounting seat 12, and a circular through groove is formed at the center position of the display board 13 for fixing the scale disc 30;

[0038] The top of the teaching aid body 10 is provided with a laser pen 20;

[0039] The laser pen 20 is vertically fixed on the top of the teaching aid body 10;

[0040] The front surface of the teaching aid body 10 is provided with a scale disc 30, the scale disc 30 comprises a scale disc rotating outer ring 31 fixedly connected to the front surface of the teaching aid body 10, and a disc body 32 rotatably connected to the inner side wall of the scale disc rotating outer ring 31;

[0041] The scale dial rotating outer ring 31 is fixed in the circular through slot in the center of the display board 13, and the inner side wall is rotatably connected with the disc body 32 through a bearing. When demonstrating, the light direct angle can be adjusted by rotating the disc body 32. The outer side wall of the disc body 32 is provided with a scale, facilitating observation of the incident angle and the refraction angle.

[0042] A circular groove is formed in the center of the disc body 32, and a mirror mounting assembly 40 is arranged in the circular groove. The mirror mounting assembly 40 comprises a mounting rotating outer ring 41 inserted into the circular groove of the disc body 32; a mirror rotating disc 42 rotatably connected to the inner side wall of the mounting rotating outer ring 41; a rotating knob 43 fixedly connected to one side of the mirror rotating disc 42; a clamping groove 44 formed in one side of the mirror rotating disc 42; a magnet 45 arranged on the outer side wall of the clamping groove 44; a mirror fixing disc 46 inserted into one side of the mirror rotating disc 42; an iron sheet 47 fixedly connected to one side of the mirror fixing disc 46; and a mirror 48 fixedly connected to the outer side wall of the mirror fixing disc 46. The mirror 48 is a transparent semi-cylindrical body, and is a lens.

[0043] When demonstrating the light refraction phenomenon, first, the shape of the mirror 48 (transparent semi-cylindrical body, concave lens or convex lens) is selected according to the demonstration needs, and then the mirror 48 is inserted into the clamping groove 44 of the mirror rotating disc 42 through the mirror fixing disc 46, so that the mirror mounting assembly 40 can flexibly adjust the demonstrated mirror 48. When the incident angle needs to be adjusted, the rotating knob 43 is rotated to drive the mirror rotating disc 42 to rotate, and the mirror rotating disc 42 drives the mirror 48 to rotate, thereby adjusting the incident angle.

[0044] In some embodiments, the laser pen 20 has three mutually parallel light sources. When demonstrating the light refraction phenomenon of the lens, the three light sources are turned on to demonstrate.

[0045] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present specification.

[0046] In addition, the technical solutions among various embodiments can be combined with each other, but it must be based on that a person skilled in the art can realize, when the combination of the technical solutions appears contradictory or cannot be realized, it should be considered that the combination of the technical solutions does not exist, and is not within the protection scope required by the present application.

[0047] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A light refraction demonstration teaching aid, comprising a teaching aid body (10); Its features are: The top of the teaching aid body (10) is equipped with a laser pointer (20); The front surface of the teaching aid body (10) is provided with a scale (30), the scale (30) comprising: The outer ring (31) of the dial rotates and is fixedly connected to the front surface of the teaching aid body (10); The disc body (32) is rotatably connected to the inner wall of the outer ring (31) of the dial; A circular groove is provided at the center of the disc body (32), and a lens mounting assembly (40) is provided in the circular groove. The lens mounting assembly (40) includes: Install the rotating outer ring (41) and insert it into the circular groove of the disc body (32); The mirror body rotating disk (42) is rotatably connected to the inner wall of the mounting rotating outer ring (41); Rotate the knob (43) to fix it to one side of the mirror body rotating disk (42); A slot (44) is provided on one side of the mirror body rotating disk (42); A magnet (45) is disposed on the outer wall of the slot (44).

2. The light refraction demonstration teaching aid according to claim 1, characterized in that: The teaching aid body (10) includes: Base (11); Mounting base (12) is fixedly connected to the top of the base (11); The display panel (13) is fixedly connected to the top of the base (11).

3. The light refraction demonstration teaching aid according to claim 1, characterized in that: The laser pointer (20) has three parallel light sources.

4. The light refraction demonstration teaching aid according to claim 1, characterized in that: The mirror mounting assembly (40) also includes: The mirror body fixing plate (46) is inserted into one side of the mirror body rotating plate (42); Iron sheet (47) is fixedly connected to one side of the mirror body fixing plate (46); The mirror body (48) is fixedly connected to the outer wall of the mirror body fixing plate (46).

5. The light refraction demonstration teaching aid according to claim 1, characterized in that: The mirror body (48) is a transparent semi-cylinder.

6. The light refraction demonstration teaching aid according to claim 1, characterized in that: The mirror body (48) is a lens.

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