CN202541115U

CN202541115U - Multifunctional teaching compasses

Info

Publication number: CN202541115U
Application number: CN2012201656832U
Authority: CN
Inventors: 刘勋华
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-04-19
Filing date: 2012-04-19
Publication date: 2012-11-21
Anticipated expiration: 2022-04-19

Abstract

The utility model belongs to a pair of multifunctional teaching compasses, which is provided for the teaching and the scientific research work, integrates the functions of the traditional compasses, a ruler, a set square and an angle gauge, and can measure angle and length and draw a circle. The multifunctional teaching compasses are made of high-hardness transparent plastic and are composed of a short leg 1, a long leg 2 and the angle gauge 3, wherein the semicircular angle gauge 3 is arranged at one end of the long leg 2, and a needle point 4 is arranged at the other end of the long leg 2. The needle point 4 is used as the center of a circle when the circle is drawn. Scales are arranged on the short leg 1 and the long leg 2, and the short leg 1 and the long leg 2 can used as rulers to measuring length. The starting point of one end of the short leg 1 is positioned at the center of a circle of the angle gauge 3, so that the short leg 1 and the angle gauge 3 can be used together to measure the angle. A pencil lead 5 can be placed at the other end of the short leg 1 to be used for drawing the circle.

Description

Multifunctional teaching compasses

Technical field:

The utility model belongs to a kind of novel drawing instrument that has merged traditional compasses, ruler, set square, protractor function.

Background technology:

Take measurement of an angle, length, circle tool is often to use in teaching, the drawing work, and is how convenient, accurately directly have influence on the efficient of teaching, drawing work.Mostly the above-mentioned instrument that uses at present is traditional compasses, ruler, set square, protractor, and function singleness is carried inconvenience, and production cost is high, can not satisfy teacher, student and scientific research personnel's needs.

Teaching, be badly in need of in the drawing work a kind of can merge take measurement of an angle, the drawing instrument of length, the multiple function of picture circle, increase work efficiency.

Summary of the invention:

The main task of the utility model is for teaching and scientific research work a kind of novel drawing instrument that merges can the taking measurement of an angle of traditional compasses, ruler, set square, protractor function, length, picture circle to be provided.

The utility model is achieved in that it processes with the high-hard, transparent plastics, is made up of short pin, long pin, protractor three parts.Have scale on short pin and the long pin, can work as ruler and use, measure length.Short pin one end starting point is positioned at the center of circle of protractor, can use together with protractor to take measurement of an angle, and the other end can be placed pen core, is used for the picture circle.Long pin one end is designed with protractor, and the other end is designed with needle point, draws bowlder as the center of circle.

The advantage of the utility model is: length, angle function are justified, measured to the picture that merges traditional compasses, ruler, set square, protractor in one, uses simply, and be easy to carry, helps increasing work efficiency; The huge market demand, production cost is low, is convenient to marketing.

Description of drawings:

Fig. 1 is the structural representation of the utility model.

Among Fig. 1, the 1st, short pin, the 2nd, long pin, the 3rd, protractor, the 4th, needle point, the 5th, pen core.

The specific embodiment:

Further specify in conjunction with the embodiment of accompanying drawing to the utility model: the long pin 2 of this novel bow compass, short pin 1 can be used to measure length, are the center of circle with the needle point 4 of long pin 2 one ends, and the pen core 5 that rotates short pin 1 one ends can come the picture circle.Protractor 3 can be used for taking measurement of an angle with short pin 1 together, during measurement the base of measured one side with protractor 3 is overlapped, rotates weak point pin 1 and arrives with the another side of institute angle measurement and overlap, and can read angle numerical value from protractor 3.

Claims

1. multifunctional teaching compasses; It is characterized in that: it is processed with the high-hard, transparent plastics; Be made up of short pin (1), long pin (2), protractor (3) three parts, have scale on short pin (1) and the long pin (2), long pin (2) one ends are designed with semicircle protractor (3); The other end is designed with needle point (4), draws bowlder as the center of circle.

2. according to the said multifunctional teaching compasses of claim 1, it is characterized in that: short pin (1) one end starting point is positioned at the center of circle of protractor (3), and protractor (3) uses together and take measurement of an angle, and the other end is placed the pen core (5) of picture bowlder use.