Multifunctional mathematics teaching ruler

A multi-functional and mathematical technology, applied in printing, writing utensils, etc., can solve problems such as laboriousness and affecting the quality of drawing, and achieve the effect of improving the accuracy of graphics drawing

Inactive Publication Date: 2018-06-15
张天济
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method is very laborious and requires certain skills, and careless operation will affect the quality of drawing

Method used

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  • Multifunctional mathematics teaching ruler
  • Multifunctional mathematics teaching ruler
  • Multifunctional mathematics teaching ruler

Examples

Experimental program
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Embodiment

[0039] Embodiment Multifunctional mathematics teaching ruler

[0040] refer to Figure 1-Figure 6, the present embodiment includes a positioning bracket 20, a laser bracket 65 is installed on the top of the positioning bracket 20, several laser emitting modules 56 are installed on the bottom of the laser bracket 65, and the stable rotation geometric superposition device including a fixed frame 51 is installed on the middle of the positioning bracket 20, The top of fixed frame 51 connects two upper large-scale bearings 52, and the central axis of two upper large-scale bearings 52 is collinear, and the outer ring of large-scale bearing 52 is connected with fixed frame 51, and the inner ring of large-scale bearing 52 connects spring clip 53, and spring clip 53 is provided with a light-transmitting plate 54, which is connected with an opaque geometric figure rod 64, and the bottom of the positioning bracket 20 is installed with an angle rotation positioning plotter, and the angle ...

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PUM

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Abstract

The invention discloses a multifunctional mathematics teaching ruler which comprises a positioning bracket. A laser bracket is mounted on the upper portion of the positioning bracket; a plurality of laser emission modules are mounted at the bottom of the laser bracket; a stable rotating geometric superposition device is mounted in the middle of the positioning bracket and comprises fixed frames; and the lower portions of the fixed frames are connected with adjusting nuts. The stable rotating geometric superposition device and an angle rotating positioning plotter are combined, a reference linecan be formed on a drawing, and the graphic plotting precision can also be greatly improved; and light-transmitting plates with light-proof geometry graphic rods are combined with lasers emitted by the laser modules, the light-proof geometry graphic rods can block light rays, penetrating through the light-transmitting plates, of the lasers emitted by the laser modules, thus the light rays are projected to the drawing, and geometry graphics corresponding to the light-proof geometry graphic rods are formed, so that a teacher does not need to manually plot the drawing, the standard geometry graphics can be formed on the drawing, and plotting reference is facilitated. The multifunctional mathematics teaching ruler is suitable for teaching plotting.

Description

technical field [0001] The invention belongs to the field of teaching instruments, and relates to a mathematics teaching tool, more precisely, a multifunctional mathematics teaching ruler. Background technique [0002] In mathematics and geometry teaching, teachers often need to manually draw geometric figures on the drawings. Since most geometric figures do not have corresponding blackboard templates, teachers' manual drawing is often not standardized enough, resulting in differences between the hand-drawn geometric figures and the expected size and shape. understanding of graphics. Moreover, the position and angle of the geometric figures drawn by hand on the drawings are relatively fixed. When the same figures with different angles are required, the original ones need to be erased and redrawn, which is very troublesome. Drawing tools are common tools used to assist in drawing straight lines or curves on drawings. The existing drawing rulers are simply long strip-like str...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43L13/00
CPCB43L13/001
Inventor 张天济
Owner 张天济
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