CN2252716Y

CN2252716Y - Position plotting instrument

Info

Publication number: CN2252716Y
Application number: CN 96210000
Authority: CN
Inventors: 马顺
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-04-18
Filing date: 1996-04-18
Publication date: 1997-04-23
Anticipated expiration: 2006-04-18

Abstract

The utility model relates to a position plotting instrument which is composed of a dial disc, an instrument for measuring the centre of a circle, and an angle indicating needle. The utility model is characterized in that the inside of the dial disc is provided with one instrument for measuring the centre of a circle whose one end is connected with the dial disc and whose other end is drilled with a circular hole whose lower part is slightly larger than the upper part, adopting the center of a circle of the dial disc as an axle center. The angle indicating needle is composed of two indicating needles which can form a right angle and a circular axle. When use, the 0 DEG of the center of a circle of the position plotting instrument is aligned, and then the angle indicating needle is rotated to carry out the measurement and drawing on the paper. The position plotting instrument has the advantages of scientific structure and saving time and labour, and the utility model is a good tool for measuring the angle.

Description

The orientation plotter

The utility model relates to a kind of drawing instrument, specifically a kind of orientation plotter.

At present, the drawing personnel are when the drawing work of being engaged in relevant angle, and the drawing instrument of use is a graphometer, and the scale at graphometer angle is 0 degree-180 degree, its weak point is, 1, when a certain angle of amount, above need being pressed in another ruler, the accurate angle of ability energy, 2, when amount, picture surpass the angle of 180 degree, then need measure 180 degree positions earlier, then 0 degree of graphometer be aimed at the position of 180 degree, count the number of degrees that to be lacked again; 3, when drawing a certain angle, need to put in order, and then connect 2 points with ruler at a certain angle of graphometer place.

The purpose of this utility model is, designs a kind of scientific structure, and is easy to use, increase work efficiency, and can be used for surveying, investigates all orientation plotters relevant with angle such as planning, engineering design, teaching.

Major technique content of the present utility model is, the orientation plotter, by dial disc, Instrument for measuring centre of circle, angle indicator constitutes, it is characterized in that, dial disc is made up of disk and Instrument for measuring centre of circle two parts, promptly establish an Instrument for measuring centre of circle in the dial disc inboard, one of Instrument for measuring centre of circle is connected on the dial disc, the other end is the axle center with the center of circle of dial disc, be drilled with and be slightly larger than top circular hole below one, angle indicator is made up of two rectangular pointers and a circular shaft, dial disc is being marked clockwise two circle 0-360 degree (wherein 180 degree of 0 degree of a circle and another circle coexist the position of a scale on) and a 0-360 degree that encloses counterclockwise respectively, it is the scale of unit that the both sides of Instrument for measuring centre of circle indicate with the millimeter, it is the scale of unit that the both sides of angle indicator indicate with the millimeter, the outside of angle indicator and the axle center of circular shaft are on same straight line, above being slightly larger than below the circular shaft, its size is just in time identical with the circular hole of Instrument for measuring centre of circle, during use, the center of circle 0 degree of this orientation plotter dial disc is aimed at, rotational angle pointer then, just can on paper, measure, draw.

The utility model is compared the advanced part that is had and is with prior art, 1, this plotter in use as long as the rotational angle pointer just can measure, draw unspecified angle; 2, a pointer facing to certain angle, see that another pointer just knows its 90 degree turnings are what and spend; 3, save time, make things convenient for, applied widely, overcome the in use existing weak point of existing graphometer.

Description of drawings:

Fig. 1 is the utility model vertical view;

Fig. 2 is the utility model A-A profile;

Wherein 1 dial disc, 2 angle indicators, 3 Instrument for measuring centre of circle.

Below in conjunction with accompanying drawing 1-2 the utility model is remake description further, dial disc 1, Instrument for measuring centre of circle 3 usefulness lucite once are pressed into, and difference calibrate, the center of circle with dial disc 1 at Instrument for measuring centre of circle 3 is the axle center, be drilled with and be slightly larger than top circular hole below one, angle indicator 2 is made up of two rectangular pointers and a circular shaft, and the circular hole that the circular shaft of angle indicator 2 is fallen into 3 one of Instrument for measuring centre of circle is pressed into one, just constitutes the utility model.

Claims

1. orientation plotter, constitute by dial disc, Instrument for measuring centre of circle, angle indicator, it is characterized in that, establish an Instrument for measuring centre of circle in the dial disc inboard, one of Instrument for measuring centre of circle is connected on the dial disc, the other end is the axle center with the center of circle of dial disc, is drilled with and is slightly larger than top circular hole below one, and angle indicator is made up of two rectangular pointers and a circular shaft.

2. orientation according to claim 1 plotter is characterized in that, is marking the 0-360 degree of clockwise two circle 0-360 degree and counter clockwise direction one circle on dial disc respectively.

3. orientation according to claim 1 plotter is characterized in that, indicates scale unit in the both sides of Instrument for measuring centre of circle.

4. orientation according to claim 1 plotter, it is characterized in that, indicate scale unit in the both sides of angle indicator, the outside of angle indicator and the axle center of circular shaft are on same straight line, above being slightly larger than below the circular shaft, its size is just in time identical with the circular hole of Instrument for measuring centre of circle.