Space geometry section demonstrator

Abstract

A space geometry section demonstrator belongs to teaching aids. The device is mainly composed of a square timber frame, linear laser lamps, iron clamps, a semitransparent geometry model and the like, four 40CM square timbers are nailed to form the square frame, the four linear laser lamps are fixed to the four edges of the square frame through the iron clamps, the laser lamps are turned on to adjust the position, and laser rays are located on the same plane. Laser light is used for simulating a cutting plane, a space geometry model is taken and placed in the middle of the frame, the laser light can irradiate the surface of the geometry to form diffuse reflection, and a cutting section is formed through simulation. The device is reasonable in design, simple in structure and low in manufacturing cost. Teaching demonstration operation is convenient, and any section of the geometry can be obtained. The hollow geometry is made of a semitransparent material, and is convenient for students to observe in the teaching process. Students can also explore and research the section condition of the geometry through independent operation, and independently obtain knowledge and development ability.

Description

Technical Field

[0001] The utility model relates to a teaching tool, in particular to a space geometric body cross-section demonstrator. Background Art

[0002] In solid geometry teaching, understanding cross-sections is an important aspect. Some teaching aids, such as a geometric cross-section demonstrator that uses liquid cross-sections, require extensive preparation and post-demonstration cleanup, making them difficult to operate and carry. Furthermore, the liquid cross-sections make the demonstration less effective and difficult to observe. This patent addresses the issue of how to more conveniently demonstrate cross-sections. Summary of the Invention

[0003] The purpose of the utility model is to provide a geometric body cross-section demonstrator with low manufacturing cost and good demonstration operation effect.

[0004] The technical solution for achieving the purpose of the utility model is as follows:

[0005] A geometric cross-section demonstrator comprises: a translucent spatial geometric model, a square frame formed by four 40cm square timbers (or other materials), four linear laser lights, four iron clamps, and a number of iron wires or ties for fixing.

[0006] Preferably, a linear laser light is used to illuminate the semi-transparent spatial geometric model, and diffuse reflection of light is used to simulate a plane cutting the geometric model to form a cross section.

[0007] Preferably, the interior of the translucent spatial geometric model is hollow and made of translucent plastic, frosted acrylic, frosted glass or other materials, and the outer shape can be a sphere, a cylinder, a cone, a table or other shapes.

[0008] Preferably, the square frame can be made of light materials such as square wood or aluminum alloy, and can be made into a pull-out, foldable or other form if necessary.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] This utility model features a rational design, a simple structure, and low manufacturing costs. It is easy to operate during teaching demonstrations and can determine any cross-section of a geometric body. The hollow geometric body is made of a translucent material, making it easy for students to observe during teaching. Students can also independently explore and study the cross-sections of geometric bodies, acquiring knowledge and developing their abilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a structural schematic diagram of the spatial geometric cross-section demonstrator proposed in the utility model.

[0012] In the attached figure:

[0013] 1. Square wood frame; 2. Linear laser light; 3. Iron clamps; 4. Translucent geometric model. DETAILED DESCRIPTION

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] See Figure 1 , take 4 40CM square woods and nail them into a square frame 1, and fix 4 linear laser lights 2 and 3 on the four sides of the frame with iron clips 3, turn on the laser lights and adjust the position so that the laser beams are in the same plane.

[0016] During use, a laser beam simulates a cutting plane. A semi-transparent spatial geometric model 4 is placed in the center of the frame. The laser beam will illuminate the surface of the geometric model, creating diffuse reflection, simulating the cut section. Practice has shown that the geometric model works best when made of a semi-transparent material, such as translucent plastic, frosted acrylic, or frosted glass.

[0017] See attached Figure 1 The device is assembled. The wooden frame 1 can be purchased at the building materials market, and the linear laser light 2 can be purchased online.

[0018] When in use, the relative position of the demonstrator and the geometric model can be adjusted arbitrarily to obtain the required cross-sectional shape in real time.

[0019] Notes:

[0020] 1. Do not point the laser light directly into your eyes.

[0021] 2. Only three of the four laser lights can be turned on (three points determine one side).

Claims

1. A spatial geometric cross-section demonstrator, comprising: A translucent spatial geometric model (4), a square frame (1) composed of four 40cm square wood pieces, four linear laser lights (2), four iron clips (3), and a number of iron wires or ties for fixing.

2. A spatial geometric body cross-section demonstrator according to claim 1, characterized in that: The light of a linear laser lamp (2) is used to illuminate a semi-transparent spatial geometric body model (4), and diffuse reflection of the light is used to simulate a plane cutting the geometric body to form a cross section.

3. A spatial geometric body cross-section demonstrator according to claim 1, characterized in that: The interior of the translucent spatial geometric model (4) is hollow, and is made of translucent plastic, frosted acrylic, or frosted glass, and has an outer shape of a sphere, a cylinder, a cone, or a table.

4. A spatial geometric body cross-section demonstrator according to claim 1, characterized in that: The square frame (1) is made of square wood or aluminum alloy material.

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