CN2265301Y

CN2265301Y - Multi-function drawing apparatus for mathematics

Info

Publication number: CN2265301Y
Application number: CN 96240012
Authority: CN
Inventors: 刘其敬; 刘险峰
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-09-27
Filing date: 1996-09-27
Publication date: 1997-10-22
Anticipated expiration: 2006-09-27

Abstract

The utility model relates to a multi-function drawing apparatus for mathematics. The utility model is composed of a radian plate and a ruler, and is characterized in that angle scales are marked on the radian plate which uses the length of the ruler as a diameter. The ruler comprises a fixed scale and a rotation scale which is equal with the fixed scale, and the right end of the fixed scale is connected with the right end of the radian plate to integration. The left end is riveted with the center of a rotating plate arranged at the right end of the rotation scale. The left end of the rotation scale is lapped with the upper part of the left end of the radian plate by a stable button. A radian pointer is arranged on the rotation scale, and the middle is provided with a line drawing inserting groove, on which a cylindrical moment regulating button is provided. The utility model collects a ruler, a set square, a protractor and compasses to integration, and has the advantages of easy use and convenient carry over.

Description

The multifunctional mathmatical plotter

The utility model belongs to a kind of teaching aid, specifically a kind of multifunctional mathmatical plotter.

In the teaching of mathematics, often need draw various geometric figures, therefore in common teaching, Faculty and Students all must have ruler, set square, protractor and garden and advise this class teaching aid and schooling apparatus, during drawing geometric figures, need constantly use apparatus instead just can finish, very inconvenient, and carry also inconvenient.

The purpose of this utility model provides a kind of ruler, set square plate, protractor and garden of integrating and advises, and use, multifunctional mathmatical plotter easy to carry.

The purpose of this utility model is realized by following technical scheme.

The utility model is made up of radian dish and ruler, it is characterized in that:

A, be to be marked with angle index on the radian dish of diameter with ruler length;

B, described ruler comprise nonadjustable signal and the rotation scale isometric with it, the nonadjustable signal right-hand member and the radian dish right-hand member that indicate the length scale fuse, left end is riveted on the center of rotation scale right-hand member head top rotary table, rotation scale left end is overlapped in radian and faces left and hold top by stablize knob, rotation scale bottom indicates the length scale, top is provided with a radian pointer, has a setting-out in the middle of it and inserts ditch, a cylindrical shape is housed on it transfers the square knob.

During use, will rotate scale and go in nonadjustable signal during, and make ruler and use in a linear position.To rotate scale rotates, make the radian pointer refer to certain angle index to the radian dish, mark the one side at angle along the limit of nonadjustable signal, go in the cylindrical shape accent square knob with penholder again and promptly mark the another side at angle from bottom to top, then make protractor or set square and use along the slotting ditch of setting-out is mobile.If penholder is gone into to transfer in the square knob, will transfer the square knob to move to certain position again after rotation rotation scale can draw circular arc or garden, then make garden rule usefulness.

The utility model has the advantages that owing to integrate ruler, set square, protractor and garden and advise therefore use, easy to carry.And design ingenious, simple in structure, easy to make, with low cost.

Fig. 1 is the utility model structural representation.

Fig. 2 is for transferring square knob schematic diagram.

By the following examples, in conjunction with the accompanying drawings, the utility model is done to describe further.

Embodiment:

(referring to Fig. 1,2) processing one radian dish 1 earlier makes its diameter length be equal to ruler 2 length of being made up of nonadjustable signal 3 and rotation scale 4, marking angle index on it.Radian dish 1 right-hand member connects a nonadjustable signal 3 right-hand members, be carved with the length scale on the nonadjustable signal 3, left end and bottom indicate the length scale, top is provided with a radian pointer 7, the centre is opened a setting-out and is inserted ditch 8, one cylindrical shape is housed on it transfers the center riveted joint of rotating disk 5 of the rotation scale 4 right-hand member heads of square knob 9, left end is overlapped in radian dish 1 left end top by stablizing knob 6.

Claims

1, a kind of multifunctional mathmatical plotter is made up of radian dish (1) and ruler (2), it is characterized in that:

A, be to be marked with angle index on the radian dish (1) of diameter with ruler (2) length;

B, described ruler (2) comprise nonadjustable signal (3) and the rotation scale (4) isometric with it, nonadjustable signal (3) right-hand member and radian dish (1) right-hand member that indicate the length scale fuse, left end is riveted on the center of rotation scale (4) right-hand member head top rotary table (5), rotation scale (4) left end is overlapped in radian dish (1) left end top by stablizing knob (6), rotation scale (3) bottom indicates the length scale, top is provided with a radian pointer (7), have a setting-out in the middle of it and insert ditch (8), a cylindrical shape is housed on it transfers square knob (9).