CN201941410U - Multifunctional ruler - Google Patents

Abstract

The utility model provides a multifunctional ruler utilized in teaching tool area. Comprising a main scale and an angle gauge. The guiding tract is set on the middle upside part of the main scale. Being set on the low end of the angle gauge, the set rule is connected to the angle gauge. Through a cardinal axis, the center of the set rule i.e. the center of the angle gauge is connected to the guiding tract. The location knob is set on middle of upside part of the angle gauge The ruler is compared with the prior art, has the advantages of reasonable design, simple structure, convenient use, a multipurpose ruler, improve teaching efficiency.

Description

A kind of multi-functional chi of using

Technical field

The utility model relates to a kind of teaching aid, specifically a kind of multi-functional chi of using.

Background technology

In existing mathematical education learning process, often need use many drawing appliances, such as, draw the ruler that straight line is used, the protractor of the usefulness that takes measurement of an angle etc.And if draw the angle of special angle, just must match and just can finish with protractor and ruler, when drawing parallel lines, also need the ruler use that matches with set square, a plurality of apparatus use together, have increased teacher's labour intensity, and it is comparatively loaded down with trivial details to operate like this, be unfavorable for teaching and study, reduced learning efficiency.

Summary of the invention

Technical assignment of the present utility model is at the deficiencies in the prior art, and a kind of multi-functional chi of using reasonable in design, simple in structure is provided.

The technical scheme that its technical problem that solves the utility model adopts is: comprise main scale and protractor, described main scale middle and upper part is provided with the guiding road, described protractor lower end is provided with positioning rule and fixedlys connected with it, the positioning rule middle part is that the protractor center position is connected together by hinge and guiding road, and protractor is provided with positioning knob in the middle of the upper end.

Be slidingly connected between hinge and the guiding road.

The main scale bottom is provided with scale along the chi limit.

Positioning knob matches with the guiding road.

Can draw straight line by main scale, the number of degrees that the throughput hornwork can measured angular, the throughput hornwork matches with main scale, can draw the angle of different angles.Protractor is rotated, by the time when center, protractor upper end was positioned at top, guiding road, the rotation positioning knob made the positioning knob lower end stretch in the guiding road, be in plumbness between positioning rule and the main scale this moment, and up and down then positioning rule can be drawn parallel lines.

Of the present utility model a kind of multi-functional with chi compared with prior art, the beneficial effect that is produced is:

1, the many usefulness of a chi, function is more, has avoided because of the more omission that causes of institute's band apparatus, allows the user feel convenient.

2, can draw the angle of special angle comparatively fast, can well draw parallel lines, it is comparatively convenient to operate, and has improved efficiency of teaching thus.

3, have characteristics such as reasonable in design, simple in structure, easy to use, function admirable, practicality, thereby have excellent popularization and use prospect.

Description of drawings

Accompanying drawing 1 is a structural representation of the present utility model.

Among the figure, 1, positioning knob, 2, protractor, 3, positioning rule, 4, the guiding road, 5, main scale, 6, scale, 7, hinge.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is done following detailed description the in detail.

As shown in drawings, a kind of multi-functional chi of using of the present utility model, its structure comprises main scale 5 and protractor 2, described main scale 5 middle and upper parts are provided with guiding road 4, described protractor 2 lower ends are provided with positioning rule 3 and fixedly connected with it, positioning rule 3 middle parts are that protractor 2 center position are connected together by hinge 7 and guiding road 4, are provided with positioning knob 1 in the middle of protractor 2 upper ends.

Be slidingly connected between hinge 7 and the guiding road 4.

Main scale 5 bottoms are provided with scale 6 along the chi limit.

Positioning knob 1 matches with guiding road 4.

Of the present utility model a kind of multi-functional simple and convenient with its processing and fabricating of chi, processing and fabricating gets final product shown in the by specification accompanying drawing.

Except that the described technical characterictic of specification, be those skilled in the art's known technology.

Claims (4)

1. multi-functional chi of using, comprise main scale and protractor, it is characterized in that described main scale middle and upper part is provided with the guiding road, described protractor lower end is provided with positioning rule and fixedlys connected with it, the positioning rule middle part is that the protractor center position is connected together by hinge and guiding road, and protractor is provided with positioning knob in the middle of the upper end.

2. a kind of multi-functional chi of using according to claim 1 is characterized in that being slidingly connected between hinge and the guiding road.

3. a kind of multi-functional chi of using according to claim 1 is characterized in that the main scale bottom is provided with scale along the chi limit.

4. a kind of multi-functional chi of using according to claim 1 is characterized in that positioning knob matches with the guiding road.