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Ellipsograph

An elliptical gauge and slider technology, applied in the field of teaching tools, can solve problems such as the offset of the blackboard, and achieve the effect of being convenient to use and avoiding drawing deviation.

Inactive Publication Date: 2014-01-22
SUZHOU VOCATIONAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is how to solve the problem that the existing ellipse gauge is easy to deviate relative to the blackboard when in use

Method used

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  • Ellipsograph

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Embodiment Construction

[0010] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0011] Such as figure 1 The specific embodiment of the shown elliptical gauge of the present invention comprises: scale 1, the first slide block 2, the second slide block 3, fine line 4 and pen cover 5, the first slide block 2 and the second slide block 3 respectively It is arranged at both ends of the scale 1 and can slide freely along the scale 1. The first slider 2 and the second slider 3 are provided with set screws 6, and the thin wire 4 passes through the first slider 2, and Its terminal is fixed on the second slider 3, and the pen cover 5 is used to slide under the restriction of the thin line 4 to complete the drawing of the ellipse. In order to make the ellipse ...

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Abstract

The invention discloses an ellipsograph, and relates to the field of teaching aids. The ellipsograph comprises a graduated scale, a first sliding block, a second sliding block, a thin line and a pen sleeve, wherein the first sliding block and the second sliding block are arranged at the two ends of the graduated scale respectively, can freely slide along the graduated scale, and are provided with set screws respectively, the thin line penetrates through the first sliding block, the tail end of the thin line is fixed to the second sliding block, the pen sleeve is used for sliding with limitation of the thin line, magnets are further arranged on the graduated scale, and the ellipsograph is attracted to a blackboard through the magnets. Due to the fact that the magnets are arranged on the graduated scale, the ellipsograph can be attracted to the blackboard, a user does not need to continuously carry out fixation through an arm, use is more convenient, and drawing deviation is avoided.

Description

technical field [0001] The invention relates to the field of teaching aids, in particular to an ellipse gauge. Background technique [0002] For the convenience of drawing ellipses on the blackboard during the teaching process, there are now elliptical gauges, such as the application number: 91218390. It consists of a focuser, a focus column connected to the focus adjuster, a rotating ring and a rope. The ellipse gauge can draw ellipses with different focal lengths on the blackboard, but it still has shortcomings when using it. When drawing an ellipse, the user must press the ellipse gauge on the blackboard with his hands, which is very inconvenient, and the ellipse gauge is easy to slip and cause Biased. Contents of the invention [0003] The technical problem to be solved by the present invention is how to solve the problem that the existing ellipse gauge tends to deviate relative to the blackboard during use. [0004] In order to solve the above-mentioned technical p...

Claims

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Application Information

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IPC IPC(8): B43L11/045
Inventor 相蒙蒙彭梅刘浩贾旭顾苏怡
Owner SUZHOU VOCATIONAL UNIV
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