CN202826871U - Multifunctional protractor - Google Patents

Abstract

The utility model belongs to the field of measuring apparatus, and discloses a multifunctional protractor which comprises an angle measuring plate, a ruler and a movable axial center, wherein the ruler is provided with scales and connected with the angle measuring plate through the movable axial center; one end of the ruler is provided with a pen hole; and the other end of the ruler is provide with an indicator which is an opening. The multifunctional protractor has the advantages that structural design is reasonable, the semi-circular angle measuring plate is used for measuring angles and connected with the ruler through the movable axial center, adjustment of angle measurement is convenient, and a common ruler function is also provided, the indicator is arranged on the upper portion so that observation is facilitated, and the pen hole is arranged at the tail end of the ruler and used for a pen point to penetrate through and draw a circle.

Description

Multi-function protractor

Technical field

The utility model relates to a kind of protractor, and specifically a kind of multi-function protractor belongs to the measuring instrument field.

Background technology

General semicircular protractor, the straight line that need draw first the directive central point just easily very goes out angle; But a kind of ruler doubling is also arranged at present on the market, utilize the angle of doubling to measure, then all stuck-at-１ 5 degree, 30 are spent, 45 degree, 60 are spent in the angle aspect, 75 degree equal angles, and it also can't measure accurate angle.

Existing compasses combined with ruler utilizes the angle of chi and chi to come angle measurement, but the angle major part is all fixing, and the measurement aspect is restricted greatly.

The utility model content

For the problem that above-mentioned prior art exists, the utility model provides a kind of multi-function protractor, is connected with ruler side by movable axle center, and convenient the adjustment takes measurement of an angle, and can do general ruler functions again, and the ruler top has been provided with the convenient observation of index.

To achieve these goals, the technical solution adopted in the utility model is: a kind of multi-function protractor, comprise Angle protractor, and also comprise ruler and movable axle center, ruler is provided with scale, and ruler is connected with Angle protractor by movable axle center, and ruler one end is provided with a hole.

Further, the other end is provided with index.

Further, index is an opening.

The beneficial effects of the utility model are: reasonable in design, this device utilizes semi-circular Angle protractor to come measuring angle, be connected with ruler by movable axle center, the convenient adjustment takes measurement of an angle, can provide general ruler functions again, the top has been provided with the convenient observation of index, and the ruler tail end is provided with a hole, penetrates the picture circle for nib.

Description of drawings

Fig. 1 is the utility model structural representation;

Among the figure: 10, Angle protractor, 11, index, 12, movable axle center, 13, a hole, 14, ruler, 15, scale.

The specific embodiment

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

As shown in Figure 1, a kind of multi-function protractor comprises Angle protractor 10, also comprises ruler 14 and movable axle center 12, and ruler 14 is provided with scale 15, and ruler 14 is connected with Angle protractor 10 by movable axle center 12.

Ruler 14 1 ends are provided with a hole 13, and the other end is provided with index 11.

Index 11 is an opening.

During use, utilization gusset 10 comes measuring angle, adjusts ruler 14 measurements by rotating movable axle center 12, also can provide general functions of ruler, observes taking measurement of an angle by index 11, has mouth on the index 11 and is used for taking measurement of an angle, and a hole 13 can penetrate the picture circle for nib.

Claims (3)

1. a multi-function protractor comprises Angle protractor (10), it is characterized in that, also comprises ruler (14) and movable axle center (12), and ruler (14) is provided with scale (15), and ruler (14) is connected with Angle protractor (10) by movable axle center (12).

2. a kind of multi-function protractor according to claim 1 is characterized in that, described ruler (14) one ends are provided with a hole (13), and the other end is provided with index (11).

3. a kind of multi-function protractor according to claim 2 is characterized in that, described index (11) is an opening.

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