CN2194822Y - Vernier protractor ruler - Google Patents

Abstract

The utility model relates to a vernier protractor ruler which belongs to office supplies. The utility model can measure various angles and lengths in a positioning way. A semicircle movable ruler (3) is clamped in an annular circular disk (5) on the circular disk (1), a bar-shaped slot is arranged on the movable drawing ruler (3), and a movable positioning slide plate (4) is inserted in the bar-shaped slot and is movably positioned in the annular circular disk (5). The lower flat surface of the circular disk (5) is a semicircle fixed ruler (2) which is combined with the circular disk (1) into a whole. The annular circular disk (5) is engraved with angular degrees, and the fixed ruler (2) and movable ruler (3) are engraved with length. The utility model is suitable for measuring, calculating and drawing various angles and lengths, and realizes one ruler with multiple purposes.

Description

Vernier protractor ruler

The utility model belongs to office appliance, particularly a kind ofly is used to chart, the vernier angulation of angulation and line draws chi.

At present, in teaching, engineering, mechanical drawing work, normal expense hornwork and set square angle measurement combination line are difficult for the location, angle measurement and line error often occur, make troubles to the user.

The purpose of this utility model is to overcome above technical deficiency, and provides a kind of vernier angulation with angulation and line function to draw chi.

Task of the present utility model is, the vernier angulation is drawn chi by the semicircle movable chi of drawing of clamping in the circular disk above the disk, draw in activity and to have bar-shaped trough on the chi, in bar-shaped trough, stud with the running fix slide plate, running fix in circular disk, at the disk lower plane is the semicircle chi of drawing, become one with disk, system is drawn angle on the circular disk of disk, delineates length fixing the drawing on the chi of semicircle, draws in activity and delineates length on the chi, chi is drawn in the rotation activity in circular disk, various angles and length can be measured, and duplicate measurements can be located.

The utility model vernier angulation is drawn chi, draws a chi by fixing stroke chi and activity and forms, and delineates angle on circular disk, and easy to carry, it is accurate to measure, and improves the quality and the speed that take measurement of an angle with size.

Specifically describe with by way of example below in conjunction with accompanying drawing.

Fig. 1 shows that the vernier angulation draws the chi front view.

Fig. 2 shows that the vernier angulation draws chi A-A sectional view.

Fig. 1 shows that the vernier angulation draws the embodiment of chi, it is circular disk (5) on the last plane of disk (1) that the vernier angulation is drawn chi, circular disk (5) is gone up the delineation angle, from 0-360 ° of disk (1) lower plane is the semicircle fixing chi (2) of drawing, go up delineation length at the fixing chi (2) of drawing, from 5-0-5, same disk (1) becomes one, the semicircle movable chi (3) of drawing of clamping in circular disk, and delineation length are from 5-0-5, draw on the chi (3) in activity and to have bar-shaped trough, stud with removable location slide plate (4) in bar-shaped trough, running fix in circular disk (5) takes measurement of an angle and length.

Fig. 2 shows that the vernier angulation draws chi A-A sectional view, annular disk (5) and the semicircle fixing chi (2) of drawing become one, the movable chi (3) of drawing has bar-shaped trough fixing the drawing on the chi (2) of semicircle, be equipped with in location slide plate (4) location slide plate (4) the insertion circular disk (5) and lock, location slide plate (4) is extracted circular disk (5), can make the movable free rotation in circular disk (5) of chi (3) of drawing, measure arbitrarily angled and length.

When using angle measurement or drawing the angle, chi (3) is drawn in the rotation activity, the last indicated angle of chi (3) edge survey sensing circular disk (5) is drawn in activity be institute's angle measurement degree, locking location slide plate (4), make the fixing angle of drawing chi (2) and movable stroke chi (3) be the angle of the picture of surveying, but repeated measurement is saved time, and increases work efficiency.

When chi (3) and fixing stroke of chi (2) coincidence were drawn in activity, the movable chi (3) of drawing became ruler, and locking location slide plate (4) can be measured length.

The utility model is simple in structure, and is easy to use, is applicable to also can measure length simultaneously to various measurement of angle, calculating, drawing, accomplishes that a chi uses more.

Claims (4)

1, a kind of vernier angulation at the last fixing stroke chi (2) of disk (1) is drawn chi, it is characterized in that being provided with above the disk (1) circular disk (5), the lower plane of disk (2) is the semicircle fixing chi (2) of drawing, same disk (1) becomes one, the semicircle movable chi (3) of drawing of clamping in circular disk (5);

2, vernier angulation according to claim 1 is drawn chi, it is characterized in that the semicircle movable chi (3) of drawing of the interior clamping of circular disk (5), draws in activity removable location slide plate (4) is housed on the chi (9);

3, vernier angulation according to claim 1 is drawn chi, it is characterized in that the circular disk (5) on the said disk (2) is gone up the delineation angle, draws chi (2) in semicircle and goes up delineation length;

4, vernier angulation according to claim 1 is drawn chi, it is characterized in that said activity draws chi (3) and go up delineation length, draws vertical circular disk (5) side of chi (3) in activity and has bar-shaped trough, studs with removable location slide plate (4) in bar-shaped trough.

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