CN211390740U - Multifunctional mathematics drawing auxiliary device - Google Patents

Abstract

The utility model discloses a multifunctional mathematics drawing auxiliary device, which comprises a fixed ruler and a movable ruler, wherein the head of the movable ruler is connected with the head of the fixed ruler; the multifunctional mathematics drawing auxiliary device skillfully combines the fixed ruler, the movable ruler and the protractor together, can draw straight lines with certain length, can also draw required angles and curves, and has reasonable structure and simple operation.

Description

Multifunctional mathematics drawing auxiliary device

Technical Field

The utility model relates to a teaching appurtenance technical field specifically is multi-functional mathematics drawing auxiliary device.

Background

In a mathematics class, a teacher often needs to perform drawing demonstration, and auxiliary tools such as a ruler, a protractor and compasses are needed for more vivid drawing. At present, auxiliary tools such as rulers, protractors and compasses which are commonly used are independent bodies, teachers need to carry the auxiliary tools together when using the ruler, the protractors and the compasses, and the auxiliary tools which are independent bodies are large in number and difficult to carry; need frequently change when using, influenced teaching efficiency greatly.

Disclosure of Invention

An object of the utility model is to provide a multi-functional mathematics auxiliary device that draws can draw the straight line of fixed length, the curve of certain angle, has solved the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: comprises a fixed ruler and a movable ruler with the head connected with the head of the fixed ruler; a protractor is arranged at the joint of the two parts;

the fixed ruler is in a cuboid shape, six faces of the fixed ruler are respectively a front face, a rear face, an upper face, a bottom face, a left side face and a right side face, a groove is formed in the middle of the upper face of the fixed ruler, and the movable ruler is clamped in the groove;

the fixed ruler, the movable ruler and the protractor are all cast by transparent plastic materials;

the fixed ruler head, the movable ruler head and the protractor are connected together at the original points through the rotating shaft, and the movable ruler can rotate around the rotating shaft.

Length scales are engraved on the upper part and the lower part of the front surface of the fixed ruler, and the front surface of the fixed ruler is fixedly connected with a handle;

the length scales are carved on the inner side of the movable ruler, a plurality of clamping holes are uniformly arranged on the surface at intervals, and chalk is clamped in the clamping holes.

Compared with the prior art, the beneficial effects of the utility model are as follows: this multi-functional mathematics drawing auxiliary device utilizes fixed ruler, movable ruler, protractor ingenious to combine together, not only can draw the straight line of certain length, also can draw angle and the curve that needs, rational in infrastructure, easy operation.

Drawings

Fig. 1 is the overall structure schematic diagram of the multifunctional mathematics drawing auxiliary device of the utility model.

The figures are labeled as follows: 1. fixing a ruler; 2. a movable ruler; 3. a protractor; 4. a handle.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1, in embodiment 1, the multifunctional mathematics drawing auxiliary device includes a fixed ruler 1 and a movable ruler 2 whose head is connected with the head of the fixed ruler 1; the joint of the two is provided with a protractor 3.

Embodiment 2, multi-functional mathematics drawing auxiliary device, including the fixed ruler 1, and the head is connected with the movable ruler 2 of the fixed ruler 1 head; the fixed ruler 1 is in a cuboid shape, six faces of the fixed ruler 1 are respectively a front face, a rear face, an upper face, a bottom face, a left side face and a right side face, a groove is formed in the middle of the upper face of the fixed ruler 1, and a movable ruler 2 is clamped in the groove; the joint of the fixed ruler 1 and the movable ruler 2 is provided with the protractor 3, the head of the fixed ruler 1, the head of the movable ruler 2 and the origin of the protractor 3 are connected together through a rotating shaft, and the movable ruler 2 can rotate around the rotating shaft.

Embodiment 3, multi-functional mathematics drawing auxiliary device, including the fixed ruler 1, and the head is connected with the movable ruler 2 of the fixed ruler 1 head; the joint of the two is provided with a protractor 3;

the fixed ruler 1, the movable ruler 2 and the protractor 3 are all made of transparent plastic cement materials and poured.

The length scales are respectively carved on the upper part and the lower part of the front surface of the fixed ruler 1, and the handle 4 is fixedly connected to the front surface of the fixed ruler 1.

The inner side of the movable ruler 2 is carved with length scales, a plurality of clamping holes are uniformly arranged on the surface at intervals, and chalk is clamped in the clamping holes.

This multi-functional mathematics drawing auxiliary device utilizes fixed ruler 1, movable ruler 2, 3 ingenious combinations of protractor to be in the same place, not only can draw the straight line of certain length, also can draw angle and the curve that needs, rational in infrastructure, easy operation.

When the multifunctional mathematics drawing auxiliary device is used, the handle 4 is taken, the device is placed close to a blackboard, chalk is clamped in a clamping hole of the movable ruler 2, a straight line with a required length is cut on the surface of the movable ruler 2 as required, a required angle is formed at the protractor 3 through the rotation of the movable ruler 2, and the chalk can draw a required curve in the clamping hole; if a certain angle needs to be drawn, the chalk in the clamping hole is removed, the movable ruler 2 is rotated to find a proper angle on the protractor 3, and the required angle can be obtained by drawing between the fixed ruler 1 and the movable ruler 2.

Having shown and described the basic principles and principal features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (1)

1. The multifunctional mathematics drawing auxiliary device comprises a fixed ruler and a movable ruler, wherein the head of the movable ruler is connected with the head of the fixed ruler; the method is characterized in that: a protractor is arranged at the joint of the two parts;

the fixed ruler is in a cuboid shape, six faces of the fixed ruler are respectively a front face, a rear face, an upper face, a bottom face, a left side face and a right side face, a groove is formed in the middle of the upper face of the fixed ruler, and the movable ruler is clamped in the groove;

the fixed ruler, the movable ruler and the protractor are all cast by transparent plastic materials;

the fixed ruler head part, the movable ruler head part and the protractor are connected together at the original points through a rotating shaft, and the movable ruler can rotate around the rotating shaft;

length scales are engraved on the upper part and the lower part of the front surface of the fixed ruler, and the front surface of the fixed ruler is fixedly connected with a handle;

the length scales are carved on the inner side of the movable ruler, a plurality of clamping holes are uniformly arranged on the surface at intervals, and chalk is clamped in the clamping holes.

Images