CN202879034U - Set square - Google Patents

Set square Download PDF

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Publication number
CN202879034U
CN202879034U CN 201220592728 CN201220592728U CN202879034U CN 202879034 U CN202879034 U CN 202879034U CN 201220592728 CN201220592728 CN 201220592728 CN 201220592728 U CN201220592728 U CN 201220592728U CN 202879034 U CN202879034 U CN 202879034U
Authority
CN
China
Prior art keywords
set square
marking
marking groove
degree angle
center line
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220592728
Other languages
Chinese (zh)
Inventor
谢威
葛礼霞
季丹丹
王雪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mudanjiang Normal University
Original Assignee
Mudanjiang Normal University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mudanjiang Normal University filed Critical Mudanjiang Normal University
Priority to CN 201220592728 priority Critical patent/CN202879034U/en
Application granted granted Critical
Publication of CN202879034U publication Critical patent/CN202879034U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Drawing Aids And Blackboards (AREA)

Abstract

A set square belongs to stationery and comprises a body (1) made of transparent plastic. The body (1) is shaped as an equilateral triangle. The body (1) is provided with three elongated marking slots (2) intersecting at one point, wherein the center line of a first marking slot (2) overlaps one central line of the body (1) and the other two marking slots (2) are mutually perpendicular and symmetric along the first marking slot (2). According to this arrangement, the set square is capable of drawing a 30-degree angle, a 45-degree angle and a 60-degree angle. The set square has the advantages of being simple in structure, low in production cost, convenient to use and high in drawing efficiency.

Description

A kind of set square
Technical field
The utility model relates to cultural goods, is specifically related to a kind of set square.
Background technology
Set square is one of main drawing tool of immunologing mathematics, measuring angle.Normally used set square is comprised of two special right angled triangles.One is the isosceles right angle triangles, and another is the right angle triangle of special angle, is comprised of 30 degree and 60 degree angles.In the picture process, often to use by turns these two set squares, cumbersome, also relatively to lose time, drawing efficiency also significantly reduces.
Summary of the invention
Technical problem to be solved in the utility model is: a kind of easy to use, set square that drawing efficiency is high is provided.
Technical solution of the present utility model is: it comprises the body of being made by transparent plastic, described body is equilateral triangle, having three on the body intersects in the elongated marking groove of a bit, wherein the center line of a marking groove and body center line coincides, and two marking groove are perpendicular and symmetrical along article one marking groove in addition.
Technique effect of the present utility model is: it integrates 30 degree, 45 degree and 60 degree angles, has the advantage that simple in structure, cost is low and easy to use, drawing efficiency is high.
Description of drawings
Fig. 1 is structure chart of the present utility model.
The specific embodiment
As shown in Figure 1, it comprises the body 1 of being made by transparent plastic, described body 1 is equilateral triangle, having three on the body 1 intersects in the elongated marking groove 2 of a bit, wherein a center line of the center line of a marking groove 2 and body 1 coincides, and two marking groove 2 are perpendicular and symmetrical along article one marking groove 2 in addition.

Claims (1)

1. set square, comprise the body (1) of being made by transparent plastic, it is characterized in that, described body (1) is equilateral triangle, having three on the body (1) intersects in the elongated marking groove (2) of a bit, wherein a center line of the center line of a marking groove (2) and body (1) coincides, and two marking groove (2) are perpendicular and symmetrical along article one marking groove (2) in addition.
CN 201220592728 2012-11-12 2012-11-12 Set square Expired - Fee Related CN202879034U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220592728 CN202879034U (en) 2012-11-12 2012-11-12 Set square

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220592728 CN202879034U (en) 2012-11-12 2012-11-12 Set square

Publications (1)

Publication Number Publication Date
CN202879034U true CN202879034U (en) 2013-04-17

Family

ID=48070494

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220592728 Expired - Fee Related CN202879034U (en) 2012-11-12 2012-11-12 Set square

Country Status (1)

Country Link
CN (1) CN202879034U (en)

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130417

Termination date: 20131112