CN2320428Y - Multi-functional quick-drawing instrument - Google Patents

Abstract

The utility model provides a multifunctional quick drawing instrument which comprises a protractor, a ruler, parallel four connecting rods and a compass which are connected into a whole by a shaft. The utility model is characterized in that a positioning needle is fixed to one end of the ruler, the other end of the ruler is provided with scales which are parallel to the ruler, the protractor is fixed to the shaft, the parallel four connecting rods use the ruler as one side, and the ruler end part of one side of the parallel four connecting rods, which is near to the positioning needle is provided with a fixing piece. The utility model can quickly draw parallel lines, angles, angular bisectors, various triangles, parallelograms, circles and arcs, and measure the angles. In addition, the utility model has the advantages of simple structure, flexible and convenient operation, and perfect performance.

Description

Multi-functional fast drawing instrument

The multi-functional fast drawing instrument that the utility model provides a kind of teachers and students of being suitable for to use belongs to the drawing instrument field.

At present, it is many to be suitable for the multi-functional fast drawing instrument kind that teachers and students use, and with regard to its technology, a class is to be provided with multiple geometric figure on panel, utilizes ready-made figure mapping, quick and convenient, and defective is can not arbitrary combination, function limitation; Another kind of is that several scales are combined into one, as Chinese patent communique disclosed utility model patent on July 3rd, 1996: use the QuickDraw instrument more, the patent No.: 95234918, the applying date: September 24 nineteen ninety-five, form by two blocks of chi plates that are hinged and connected to together, two chi plates are through rotating the ruler that can become mutual lengthening, can form compasses through annex pilot pin and lead for retractable pencil on each ruler plate head, on the ruler removable vernier is housed, two chi plates are amounted to the protractor of drawing a moment on the body, and the locator of band pilot pin is housed on its position, center of circle, this plotter collection set square, protractor, multiple function such as compasses and ruler is in one, and is multiple functional, and defective is a complex structure, the cost height, impracticable.

The purpose of this utility model provide a kind of simple in structure, multiple functional, price is low, be suitable for the fast drawing instrument that teachers and students use.

The purpose of this utility model is achieved in that

Comprise that axle connects assembling all-in-one-piece protractor, ruler, parallel four connecting rods and compasses, it is characterized in that: an end of ruler is fixed with pilot pin, the other end is carved with the indication line and the axle that are parallel to ruler and is fixed with protractor, parallel four connecting rods utilize ruler as it on one side, and a side ruler end part that closes on parallel four connecting rods of pilot pin is provided with fixture.

Described multi-functional fast drawing instrument, the side chi that pencil is installed with connect with the ruler nut, and degree of tightness is adjustable.

Described multi-functional fast drawing instrument, protractor can be set to one with parallel four connecting rods.

Described multi-functional fast drawing instrument is equipped with scale on each side chi of ruler and parallel four connecting rods.

The utility model compared with prior art is the movable connection of axle between protractor, ruler and parallel four connecting rods, flexible and convenient to use, and simple in structure, multiple functional, cheap.

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

The utility model is described in further detail below in conjunction with accompanying drawing:

Ruler 2 and three side chi axles are connected to form the parallel four-bar linkage structure of adjustable angle, side chi 6 one ends and ruler 2 are connected and fixed through nut 3, and degree of tightness is adjustable, the other end chief inspector of side chi 6 is provided with fixture 7, be used to install pencil with this paintbrush as compasses, ruler 2 closes on an end of side chi 6 and fixes the fulcrum of a pilot pin 5 as compasses by nut 4, fastening nut 4 positioning instants can be drawn circle, protractor 1 is set to one with side chi 9, be the use of use level hornwork 1, the end of ruler 2 is provided with the indication line 10 that is parallel to ruler.

In like manner, protractor 1 also can be separately axle be arranged on the ruler 2.

Claims (4)

1, a kind of multi-functional fast drawing instrument, comprise that axle connects assembling all-in-one-piece protractor, ruler, parallel four connecting rods and compasses, it is characterized in that: an end of ruler is fixed with pilot pin, the other end is carved with the indication line and the axle that are parallel to ruler and is fixed with protractor, parallel four connecting rods utilize ruler as it on one side, and a side ruler end part that closes on parallel four connecting rods of pilot pin is provided with fixture.

2, multi-functional fast drawing instrument as claimed in claim 1 is characterized in that: the side chi that pencil is installed connects with the ruler nut, and degree of tightness is adjustable.

3, multi-functional fast drawing instrument as claimed in claim 1 is characterized in that: protractor can be set to one with parallel four connecting rods.

4, multi-functional fast drawing instrument as claimed in claim 1 is characterized in that: be equipped with scale on each side chi of ruler and parallel four connecting rods.

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