Compasses for students

A compasses and student technology, applied in the field of learning appliances, can solve the problems of easy to prick fingers, poor control, hidden safety hazards, etc., and achieve the effect of convenient use

Inactive Publication Date: 2018-07-03
贾路
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The shortcomings of this type of compasses are: students are lively and active, and their control is poor. Sometimes they will play, play and even fight with learning tools. Because the ends of the positioning legs of the existing compasses are needle points, no safety protection is taken. measures, when elementary school students play with compasses, it is very easy to prick their fingers, which poses a safety hazard

Method used

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  • Compasses for students

Examples

Experimental program
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Effect test

Embodiment Construction

[0010] As shown in the accompanying drawings, the compass for students comprises a positioning leg 1 and a drawing leg 2 hinged together, the end of the positioning leg 1 is provided with a stitch 11, and the end of the drawing leg 2 is provided with a lead pin 21, The pin 11 is provided with a sheath 3,

[0011] The sheath 3 is made of plastic.

[0012] When it is necessary to draw a circle or an arc, the sheath 3 can be pulled out to draw. After drawing, the sheath 3 can be put on to prevent fingers from being pricked when playing with the compasses, which is safe to use.

[0013] When the lead foot 21 adopts a mechanical pencil, you only need to press the top of the mechanical pencil with your thumb to maintain the required length of the lead foot, and the pencil tip does not need to be replaced frequently, which is convenient to use.

[0014] The above description is only a preferred feasible embodiment of the present invention, and is not intended to limit the patent sco...

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PUM

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Abstract

The invention discloses a pair of compasses for students. The pair of compasses for the students comprises a positioning support foot and a drawing support foot hinged together, wherein a pin is arranged at the end part of the positioning support foot; a pencil foot is arranged at the end part of the drawing support foot; and a protecting sleeve is arranged on the pin. The pair of compasses for the students provided by the invention can prevent the students from pricking fingers when taking the compasses by hand for play, so that the pair of compasses is safe to use; and a pencil tip has no need to be replaced frequently, so that the pair of compasses is convenient to use.

Description

technical field [0001] The invention relates to the technical field of learning appliances, in particular to a compasses for primary and middle school students. Background technique [0002] Primary and middle school students often use compasses to draw circles or arcs in the process of learning mathematics. The compasses currently used are generally two-legged compasses, and the ends of the positioning legs are needle points for locating the center of the circle; The tip of a pencil, used for drawing. The shortcomings of this type of compasses are: students are lively and active, and their control is poor. Sometimes they will play, play and even fight with learning tools. Because the ends of the positioning legs of the existing compasses are needle points, no safety protection is taken. Measures, when elementary school students play with compasses, they are very easy to prick their fingers, and there is a potential safety hazard. Contents of the invention [0003] The t...

Claims

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Application Information

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IPC IPC(8): B43L9/02
CPCB43L9/02
Inventor 贾路
Owner 贾路
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