CN203792968U  Multifunctional set square for mathematics teaching  Google Patents
Multifunctional set square for mathematics teaching Download PDFInfo
 Publication number
 CN203792968U CN203792968U CN201420228306.8U CN201420228306U CN203792968U CN 203792968 U CN203792968 U CN 203792968U CN 201420228306 U CN201420228306 U CN 201420228306U CN 203792968 U CN203792968 U CN 203792968U
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 CN
 China
 Prior art keywords
 set square
 angle
 multifunctional
 mathematics teaching
 isosceles right
 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
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 230000001105 regulatory Effects 0.000 claims 1
 238000005259 measurement Methods 0.000 description 2
Abstract
The utility model discloses a multifunctional set square for mathematics teaching. The multifunctional set square for mathematics teaching comprises an isosceles rightangle set square body, a protractor is arranged inside the isosceles rightangle set square body, a positioning pin is arranged on a 45degree angle of the isosceles rightangle set square body, an adjusting screw for adjusting the extending length of the positioning pin is arranged on the positioning pin, a slider which is perpendicular to the hypotenuse and can slide along the hypotenuse is arranged on the hypotenuse of the isosceles rightangle set square body, a telescopic rod is arranged on the slider, a piece of chalk is fixed to the tail end of the telescopic rod, and length scales and angle scales are marked on the isosceles rightangle set square body and the protractor respectively. The multifunctional set square for mathematics teaching has the advantages that the multifunctional set square for mathematics teaching is simple in structure and has the angle measuring function; the multifunctional set square for mathematics teaching can be used for drawing circles with different radii, when circles do not need to be drawn through the set square, the positioning pin is adjusted into the isosceles rightangle set square body, and thus use of the isosceles rightangle set square body cannot be influenced; therefore, the multifunctional set square for mathematics teaching is simple in structure and multifunctional.
Description
Technical field
The utility model relates to a kind of mathematical education field, particularly a kind of mathematical education multifunctional triangular ruler.
Background technology
At present, math teacher can often be used drawing instrument when giving lessons to student, and such as drawing circle, straight line and angle etc., teacher need to carry the instruments such as ruler, compasses and angulometer, very inconvenient, and has reduced operating efficiency.
Summary of the invention
Problem to be solved in the utility model is: the mathematical education multifunctional triangular ruler that a kind of simple in structure, diverse in function is provided.
In order to address the above problem, mathematical education multifunctional triangular ruler of the present utility model, comprise isosceles drawing square, the inside of described isosceles drawing square is provided with an angulometer, one of them 45° angle of described isosceles drawing square is provided with pilot pin, described pilot pin place is provided with and regulates pilot pin to stretch out the adjustment screw of length, the hypotenuse of described isosceles drawing square is provided with one perpendicular to this hypotenuse and the slide block that can slide along this hypotenuse, described slide block is provided with expansion link, the end of described expansion link is fixed with chalk, on described isosceles drawing square and angulometer, be carved with respectively length scale and angle index.
The beneficial effect that the utility model is obtained is: (1) is simple in structure; (2) inside of isosceles drawing square is provided with an angulometer, has the function taking measurement of an angle; (3) during draw circles, regulate adjustment screw to make pilot pin stretch out suitable length, pilot pin is positioned to the circle centre position of wanting draw circles, adjust the position of slide block and the length of expansion link, make it to adapt with position and the length of pilot pin, the chalk that makes expansion link and be arranged on expansion link rotates along pilot pin, can draw out the circle of different radii, when not needing draw circles, pilot pin is adjusted in isosceles drawing square, can not affects like this use of isosceles drawing square, therefore, the utility model is simple in structure, diverse in function.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, isosceles drawing square, 2, angulometer, 3, pilot pin, 4, adjustment screw, 5, slide block, 6, expansion link, 7, chalk.
The specific embodiment
As shown in Figure 1, mathematical education multifunctional triangular ruler of the present utility model, comprise isosceles drawing square 1, the inside of described isosceles drawing square 1 is provided with an angulometer 2, one of them 45° angle of described isosceles drawing square 1 is provided with pilot pin 3, described pilot pin 3 places are provided with and regulate pilot pin 3 to stretch out the adjustment screw 4 of length, the hypotenuse of described isosceles drawing square 1 is provided with one perpendicular to this hypotenuse and the slide block 5 that can slide along this hypotenuse, described slide block 5 is provided with expansion link 6, the end of described expansion link 6 is fixed with chalk 7, on described isosceles drawing square 1 and angulometer 2, be carved with respectively length scale and angle index.
Mathematical education multifunctional triangular ruler of the present utility model, simple in structure, the inside of isosceles drawing square 1 is provided with an angulometer 2, has the function taking measurement of an angle.
When needs draw circles, adjusting adjustment screw 4 makes pilot pin 3 stretch out suitable length, pilot pin 3 is positioned to the circle centre position of wanting draw circles, adjust again the position of slide block 5 and the length of expansion link 6, make it to adapt with position and the length of pilot pin 3, the chalk 7 that makes expansion link 6 and be arranged on expansion link 6 rotates along pilot pin 3, can draw out the circle of different radii.
When not needing draw circles, pilot pin 3 is adjusted in isosceles drawing square 1, can not affect like this use of isosceles drawing square 1, therefore, the utility model is simple in structure, diverse in function.
Claims (1)
1. a mathematical education multifunctional triangular ruler, comprise isosceles drawing square (1), it is characterized in that: the inside of described isosceles drawing square (1) is provided with an angulometer (2), one of them 45° angle of described isosceles drawing square (1) is provided with pilot pin (3), described pilot pin (3) is located to be provided with and is regulated pilot pin (3) to stretch out the adjustment screw (4) of length, the hypotenuse of described isosceles drawing square (1) is provided with one perpendicular to this hypotenuse and the slide block (5) that can slide along this hypotenuse, described slide block (5) is provided with expansion link (6), the end of described expansion link (6) is fixed with chalk (7), on described isosceles drawing square (1) and angulometer (2), be carved with respectively length scale and angle index.
Priority Applications (1)
Application Number  Priority Date  Filing Date  Title 

CN201420228306.8U CN203792968U (en)  20140427  20140427  Multifunctional set square for mathematics teaching 
Applications Claiming Priority (1)
Application Number  Priority Date  Filing Date  Title 

CN201420228306.8U CN203792968U (en)  20140427  20140427  Multifunctional set square for mathematics teaching 
Publications (1)
Publication Number  Publication Date 

CN203792968U true CN203792968U (en)  20140827 
Family
ID=51375225
Family Applications (1)
Application Number  Title  Priority Date  Filing Date 

CN201420228306.8U Expired  Fee Related CN203792968U (en)  20140427  20140427  Multifunctional set square for mathematics teaching 
Country Status (1)
Country  Link 

CN (1)  CN203792968U (en) 

2014
 20140427 CN CN201420228306.8U patent/CN203792968U/en not_active Expired  Fee Related
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Legal Events
Date  Code  Title  Description 

C14  Grant of patent or utility model  
GR01  Patent grant  
CF01  Termination of patent right due to nonpayment of annual fee 
Granted publication date: 20140827 Termination date: 20150427 

EXPY  Termination of patent right or utility model 