CN202896071U - Combined ruler - Google Patents

Abstract

A combined ruler convenient to use comprises an angle gauge, wherein the angle gauge is provided with a central point, one side of the angle gauge is fixedly connected with a straight scale, the straight scale is provided with a scale line, the other end of the straight scale is connected with a compasses tip, the central point of the angle gauge is relatively and rotatably connected with a rotating shaft, the other end of the rotating shaft is connected with a pen container, a through hole is formed in the rotating shaft, and the formation position of the through hole corresponds to the scale line on the angle gauge. The combined ruler integrates the angle gauge, compasses and the straight scale, and greatly facilitates carrying and using for teachers.

Description

Combination ruler

Technical field

The utility model relates to a kind of teaching aid, relates in particular to a kind of combination ruler.

Background technology

In field research, the mathematics teacher gives a lesson, and some need to carry the teaching aids such as protractor, compasses, ruler simultaneously, very trouble.

The utility model content

The utility model provides a kind of combination ruler easy to use for deficiency.

The technical scheme that the utility model solves the problems of the technologies described above is as follows:

A kind of combination ruler, comprise protractor, protractor is characterized in that with central point, and protractor one side is fixedly connected with ruler, on the ruler with graduation mark, the other end of ruler is connected with the compasses point, the rotating shaft that relatively has been rotatably connected of the central spot of protractor, and the other end of rotating shaft is connected with pen container, have through hole in the rotating shaft, through hole to offer the position corresponding with protractor high scale line.

The utility model integrates protractor, compasses and ruler, is very easy to carrying and using of teacher.

Description of drawings

Fig. 1 is structural representation of the present utility model.

In the accompanying drawing:

1, protractor; 2, central point; 3, ruler; 4, compasses point; 5, pen container; 6, rotating shaft; 7, through hole.

The specific embodiment

Below in conjunction with accompanying drawing principle of the present utility model and feature are described, institute gives an actual example and only is used for explaining the utility model, is not be used to limiting scope of the present utility model.

A kind of combination ruler, as shown in Figure 1, comprise protractor 1, protractor 1 is with central point 2, and protractor 1 one sides are fixedly connected with ruler 3, on the ruler 3 with graduation mark, the other end of ruler 3 is connected with compasses point 4, the rotating shaft 6 that relatively has been rotatably connected of central point 2 places of protractor 1, and the other end of rotating shaft 6 is connected with pen container 5, have through hole 7 in the rotating shaft 6, through hole 7 to offer the position corresponding with protractor 1 high scale line.

Claims (1)

1. combination ruler, comprise protractor (1), protractor (1) is with central point (2), it is characterized in that, protractor (1) one side is fixedly connected with ruler (3), ruler (3) is upper with graduation mark, the other end of ruler (3) is connected with compasses point (4), the rotating shaft (6) of locating relatively to be rotatably connected of the central point (2) of protractor (1), the other end of rotating shaft (6) is connected with pen container (5), have through hole (7) in the rotating shaft (6), through hole (7) to offer the position corresponding with protractor (1) high scale line.

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