CN202413126U

CN202413126U - Mathematic drawing device

Info

Publication number: CN202413126U
Application number: CN2012200091098U
Authority: CN
Inventors: 张杨; 吴哲
Original assignee: Northeast Forestry University
Current assignee: Northeast Forestry University
Priority date: 2012-01-06
Filing date: 2012-01-06
Publication date: 2012-09-05
Anticipated expiration: 2022-01-06

Abstract

The utility model relates to a mathematic drawing device. In a mathematic drawing process, drawing tools including a straight ruler, a triangle, a protractor and a compass need to be arranged and some geometric figures can be drawn by continuously exchanging the drawing tools, so that the process is inconvenient. The mathematic drawing device comprises a main scale (1) and a secondary scale (2), wherein one end of the main scale is connected with one end of the secondary scale through a hinged shaft (3) and the other ends of the main scale and the secondary scale are respectively provided with graphometers (4); the secondary scale is provided with a straight slide groove (5) which extends along the long edge of the secondary scale; and the straight slide groove is provided with an adjusting button (6) for adjusting the radius of a circle. The mathematic drawing device is used for mathematic drawing.

Description

The mathematics plotter

Technical field:

the utility model relates to a kind of mathematics plotter.

Background technology:

must possess these drawing instruments commonly used of ruler, set square, protractor and compasses are arranged in mathematics is drawn, and when drawing some geometric figure, needing constantly to change drawing instrument could accomplish, very inconvenient; Though also occurred many drawing instruments that ruler, set square, protractor and compasses are combined at present; But all bigger, carry inconvenience, nor the angle of the number of degrees arbitrarily of painting out; Can only be to draw the bar limit earlier when drawing the angle of specifying the number of degrees; Draw another limit again measuring angle with protractor, drawing process is more loaded down with trivial details, and is very inconvenient.

The utility model content:

The purpose of the utility model is that the problem that is directed against above-mentioned existence provides a kind of mathematics plotter, and collection ruler, set square, protractor and compasses are one, and are simple in structure, can make things convenient for the angle of drawing any number of degrees exactly.

Above-mentioned purpose realizes through following technical scheme:

mathematics plotter; Its composition comprises: main scale and complementary scale; Said main scale and said complementary scale one end are hinged through hinge; The other end is respectively arranged with graphometer, offers a straight runner that extends along the long limit of complementary scale on the described complementary scale, and the tuning knob that is used to regulate radius of circle is installed on the said straight runner.

described mathematics plotter; Described main scale be provided with one connect with said hinge and with the parallel pointer in the long limit of said main scale; Hinged place on the said complementary scale be provided with dial; The center of circle of described dial overlaps with the center of hinge, and the diameter of said dial is parallel to the long limit of said complementary scale.

Beneficial effect:

1. the main scale and the complementary scale of the utility model can be used as the ruler use; Just use graphometer when taking measurement of an angle; Draw bowlder and just use compasses portion; When drawing the angle of any number of degrees; Just can pass through the revolute pair scale, measure angle between said main scale and the complementary scale according to the protractor on said main scale and the complementary scale and directly draw the angle and get final product, thereby make this plotter set ruler, three-ply board, protractor and compasses be one and can make things convenient for the angle of drawing out any number of degrees accurately.

so just can make whole plotter structure simpler because the utility model graphometer is arranged at the end of main scale and complementary scale, also do not take other spaces, and are just consistent with the ruler size after having folded, and are convenient for carrying.

Description of drawings:

accompanying drawing 1 is the structural representation of the utility model.

The specific embodiment:

Embodiment 1:

mathematics plotter; Its composition comprises: main scale 1 and complementary scale 2; Said main scale and said complementary scale one end are hinged through hinge 3; The other end is respectively arranged with graphometer 4, offers a straight runner 5 that extends along the long limit of complementary scale on the described complementary scale, and the tuning knob 6 that is used to regulate radius of circle is installed on the said straight runner.

Embodiment 2:

described mathematics plotter; Described main scale be provided with one connect with said hinge and with the parallel pointer 7 in the long limit of said main scale; Hinged place on the said complementary scale be provided with dial 8; The center of circle of described dial overlaps with the center of hinge, and the diameter of said dial is parallel to the long limit of said complementary scale.

Method for using:

only need the revolute pair scale to make said index line be indicated to required angle when drawing the angle of certain number of degrees to get final product; Penholder is gone in the described accent knob more just draw circular arc or circle of hinge relatively of revolute pair scale, just can directly draw out needed geometric figure.During drawing, can said main scale and complementary scale be used as ruler; Also can use graphometer on said main scale and the complementary scale to use and carry out the measurement of angle as protractor; Penholder is gone into accent knob on the said complementary scale just can be used as compasses and uses draw circular arc or circle; Make index line be indicated to the angle that our the required number of degrees just can be drawn out any number of degrees through the revolute pair scale; And the main scale of whole plotter and complementary scale rotate the size of just having only a ruler after stacking; So just can directly put into writing case, be convenient for carrying.

Claims

1. mathematics plotter; Its composition comprises: main scale and complementary scale; It is characterized in that: said main scale and said complementary scale one end are hinged through hinge; The other end is respectively arranged with graphometer, offers a straight runner that extends along the long limit of complementary scale on the described complementary scale, and the tuning knob that is used to regulate radius of circle is installed on the said straight runner.

2. mathematics plotter according to claim 1; It is characterized in that: described main scale be provided with one connect with said hinge and with the parallel pointer in the long limit of said main scale; Hinged place on the said complementary scale be provided with dial; The center of circle of described dial overlaps with the center of hinge, and the diameter of said dial is parallel to the long limit of said complementary scale.