Geometric projection device for mathematics teaching

A projection device and geometric technology, applied in projection devices, optics, educational equipment, etc., can solve the problem of inability to adjust the degree of inclination and curvature of the screen

Pending Publication Date: 2022-08-02
HARBIN NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the deepening of modern teaching, more and more projection devices are used in the teaching field to display learning content to students and facilitate students' learning. The structure and functi

Method used

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  • Geometric projection device for mathematics teaching
  • Geometric projection device for mathematics teaching
  • Geometric projection device for mathematics teaching

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Embodiment Construction

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0027] like Figures 1 to 12 As shown in the figure, in order to solve the technical problem of "how to adjust the inclination and bending degree of the screen according to different use requirements to meet different projection requirements", the structure and function of a mathematical teaching geometric projection device are described in detail below;

[0028] A mathematics teaching geometry projection device, comprising a bottom bracket 11 and a top bracket 12, the bottom bracket 11 is rotatably connected with a first screw rod 13, and the bottom bracket 11 is fixedly connected with a power mechanism I that drives the first screw rod 13 to rotate, The power mechanism I is preferably a servo motor, the output shaft of the power mechanism I is fixedly connected to the first lead screw 13, the threads at both ends of the first lead screw 13 are in opposite d...

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PUM

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Abstract

The invention relates to a projection device, in particular to a geometry projection device for mathematics teaching, which comprises a curtain fixedly connected between two rotating cylinders, a pulling belt fixedly connected to the curtain, a plurality of connecting columns fixedly connected between the pulling belt and the curtain, and a pulling part, the pulling part can stretch into the space between the curtain and the pulling belt, the curtain is pulled to be bent, a plurality of arc grooves are formed in the pulling belt, the rotating cylinder is rotationally connected to the rotating wheel, the rotating wheel is rotationally connected between the two second sliding blocks, the number of the second sliding blocks is four, two of the second sliding blocks are slidably connected to the bottom support, and the other two of the second sliding blocks are slidably connected to the bottom support. According to the utility model, the inclined bending degree of the curtain can be adjusted according to different use requirements, and different projection requirements can be met.

Description

technical field [0001] The present invention relates to a projection device, more particularly to a geometric projection device for mathematics teaching. Background technique [0002] With the deepening of modern teaching, more and more projection devices are used in the teaching field to display learning content to students and facilitate their learning. For example, the patent number CN213686025U is called a teaching geometric projection device. Although the patent discloses The structure and function of the projection device are improved, but the patent cannot adjust the inclination and bending degree of the screen according to different usage requirements to meet different projection requirements. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a geometrical projection device for mathematics teaching, which can adjust the inclination and bending degree of the screen according to different usage requirements, so as to meet different ...

Claims

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Application Information

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IPC IPC(8): F16M11/04F16M11/10F16M11/18G03B21/58G09B5/02
CPCF16M11/043F16M11/046F16M11/10F16M11/18G09B5/02G03B21/58
Inventor 王紫赵静孟鸽
Owner HARBIN NORMAL UNIVERSITY
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