Compasses for teaching

A compass and chute technology, applied in the field of teaching compasses, can solve the problems of high production cost of compasses, many production processes of compasses, and large space occupation, and achieve the effects of convenient operation, improved precision and convenient portability

Inactive Publication Date: 2019-05-21
ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The applicant finds that the existing teaching compasses have the following problems: 1. The existing compasses take up a lot of space, cannot be stored, and are inconvenient to use; 2. The production process of the compasses is many, and the production cost of the compasses with high precision is relatively high

Method used

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  • Compasses for teaching
  • Compasses for teaching
  • Compasses for teaching

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Embodiment Construction

[0021] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0022] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are to distinguish two entities with the same name but different parameters or parameters that are not the same, see "first" and "second" It is only for the convenience of expression, and should not be construed as a limitation on the embodiments of the present invention, which will not be described one by one in the subsequent embodiments.

[0023] As an embodiment, the present invention provides a teaching compasses, comprising a first support rod and a second support rod hinged to the end of the first support rod, the first support rod is provided with a receiving groove, and the receiving groove A conn...

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Abstract

The invention discloses compasses for teaching. The compasses comprise a first supporting rod and a second supporting rod, wherein a storing groove is formed in the first supporting rod, and a connecting rod is hinged with the inside of the storing groove; a first chute is formed in the first supporting rod, and a first sliding block is arranged in the first chute and can move in the first chute;a pen point is arranged on the first sliding block; a second chute is formed in the second supporting rod; a second sliding block is hinged with the end part of the connecting rod and is mounted in asecond chute; a locking part is arranged on the first supporting rod and is used for fixing opposite angles of the first supporting rod and the second supporting rod. According to the compasses for teaching, the storing state and the expanding state are supplied; the first supporting rod and the second supporting rod are matched to realize circle drawing; the compasses for teaching have the advantages of being high in drawing accuracy and stable to use; in addition, the compasses for teaching are provided with the storing state and the expanding state, so that the storing function of the compasses for teaching is realized; and the compasses for teaching are convenient to carry.

Description

technical field [0001] The invention relates to the field of compasses, in particular to a teaching compasses. Background technique [0002] In mathematics and drawing, a compass is a tool used to draw a circle or a chord, and is often used for drawing with a ruler. In the drawing teaching process, teachers need special compass for drawing. The applicant finds that the existing teaching compasses have the following problems: 1. The existing compasses take up a lot of space, cannot be stored, and are inconvenient to use; 2. The compasses have many production processes, and the compasses with high precision have higher production costs. Contents of the invention [0003] In view of this, the object of the present invention is to propose a teaching compasses to solve all or one of the problems in the background technology. [0004] A kind of teaching compass provided by the present invention based on the above-mentioned purpose, comprises a first pole and a second pole hing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43L9/02
Inventor 孙宇峰王大锐苏学满张伟李朝晨
Owner ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
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