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Multifunctional teaching ruler

A multifunctional and ruler technology, applied in the field of teaching aids, can solve the problems of incomplete functions, inconvenient operation, and large volume

Inactive Publication Date: 2018-08-17
范科晨
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the function of the teaching ruler is single, so various multi-functional teaching rulers came into being
At present, although there are multi-functional teaching rulers, they are incomplete in function, not very convenient to operate, or large in size and inconvenient to carry

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0017] refer to Figure 1-3 , a multifunctional teaching ruler, comprising a triangular plate 1, the upper end of the triangular plate 1 is rotatably connected with a first connecting rod 8, the side wall of the first connecting rod 8 is provided with a guide groove, and the side wall of the lower end of the triangular plate 1 is rotatably connected with a second Two connecting rods 9, one end of the second connecting rod 9 away from the rotating pair is fixedly connected with a slide block, the slide block cooperates with the guide groove, the lower end side wall of the triangular plate 1 is rotatably connected with a compass leg 2, and on the side wall of the compas...

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Abstract

The invention discloses a multifunctional teaching ruler. The multifunctional teaching ruler comprises a set square. A compasses leg is rotatably connected to the side wall of the lower end of the setsquare. A straight rack is rotatably connected to the side wall of the compasses leg. A guide rail is arranged on the side wall of the set square. The straight rack is slidably connected with the guide rail. A gear is rotatably connected to the side wall of the set square and matched with the straight rack. A chalk clamping cap is arranged at the end, away from a revolute pair, of the compasses leg. A compasses centre is rotatably connected to the end, close to the chalk clamping cap, of the set square. A positioning stop lever is fixedly connected to the side wall of the compasses centre. Apositioning pin sleeve is fixedly connected to the side wall of the set square. A positioning pin is slidably connected into the positioning pin sleeve. The multifunctional teaching ruler is simple and reasonable in structure, complete in function, convenient to operate, small in size, convenient to carry and suitable for teaching.

Description

technical field [0001] The invention relates to the technical field of teaching tools, in particular to a multifunctional teaching ruler. Background technique [0002] In traditional blackboard teaching, teachers often need to draw pictures on the blackboard, which will inevitably use a teaching ruler. However, the function of the teaching ruler is single, so various multifunctional teaching rulers emerge as the times require. At present, although there are multifunctional teaching rulers, they are incomplete in function, inconvenient to operate, or large in size and inconvenient to carry. Contents of the invention [0003] The purpose of the present invention is to solve the shortcomings in the prior art, and propose a multifunctional teaching ruler, which has simple and reasonable structure, complete functions, convenient operation, small size, easy to carry, and is suitable for teaching use. [0004] In order to achieve the above object, the present invention adopts t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43L9/00B43L11/045B43L13/00
CPCB43L9/00B43L9/007B43L11/045B43L13/004
Inventor 不公告发明人
Owner 范科晨
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