CN214727738U

CN214727738U - Multifunctional ruler protractor

Info

Publication number: CN214727738U
Application number: CN202120835952.0U
Authority: CN
Inventors: 甘方韬
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-22
Filing date: 2021-04-22
Publication date: 2021-11-16
Anticipated expiration: 2031-04-22

Abstract

The utility model discloses a multifunctional ruler protractor, which comprises a ruler and a protractor; the protractor comprises an upper protractor and a lower protractor; the upper protractor is provided with a first azimuth marking and a hollow groove with a parallelogram structure; the lower protractor is provided with a second azimuth marking line and a hollow groove with a parallelogram structure; the upper side edge and the lower side edge of the straight scale are fixedly connected with the bottom edges of the upper protractor and the lower protractor respectively; a third position marking line is arranged on the ruler; the right end of the ruler is sequentially provided with a hollowed-out groove with an oval structure, a convex lens and a concave lens. The utility model has the advantages that: the utility model discloses it has a plurality of knowledge points to cover, including the portrayal of position, angular surveying, cylinder, verify that the apex angle equals, explain supplementary angle definition and discernment convex lens and concave lens, played the effect of important supplementary guide in children's teaching, convenient operation is convenient for study, can popularize and apply by a large scale.

Description

Multifunctional ruler protractor

Technical Field

The utility model relates to a mathematics teaching aid technical field specifically is a multi-functional ruler protractor.

Background

In children's teaching process, can be according to children's interest and the combination of teaching purpose, many various kinds of teaching aids can appear for the teaching aid of guide education enlightens children's study hands-on ability, and these teaching aids need have multiple functions when using, and the mathematical education of being convenient for needs very high security performance moreover, can not miss the children of hurting.

However, the existing multifunctional mathematics teaching aid is not very convenient to use and has not very high safety; therefore, the multifunctional ruler protractor does not meet the existing requirements, and the multifunctional ruler protractor is provided for the requirements.

SUMMERY OF THE UTILITY MODEL

In order to solve the existing problems, the utility model provides a multifunctional ruler protractor. The utility model discloses a following technical scheme realizes.

A multifunctional ruler protractor comprises a ruler and a protractor;

the protractor comprises an upper protractor and a lower protractor; the range of the upper protractor is 0-180 degrees; the range of the lower protractor is 0-360 degrees; the upper protractor is provided with a first azimuth marking and a hollow groove with a parallelogram structure; the lower protractor is provided with a second azimuth marking line and a hollow groove with a parallelogram structure;

the upper side edge and the lower side edge of the straight scale are fixedly connected with the bottom edges of the upper protractor and the lower protractor respectively; the thickness of the straight ruler is the same as that of the upper protractor and the lower protractor; a third position marking line is arranged on the ruler; the right end of the ruler is sequentially provided with a hollowed-out groove with an oval structure, a convex lens and a concave lens.

Preferably, the first azimuth marking is a half cross marking and comprises a vertical north line and northwest lines and northeast lines positioned on two side angle bisectors.

Preferably, the second azimuth marking is a half cross marking and comprises a vertical south line, a southwest line and a southeast line which are positioned on two side angle bisectors.

Preferably, the third azimuth marking is a cross marking, and comprises a vertical front upper line, a vertical rear lower line, a horizontal left line and a horizontal right line.

The utility model has the advantages that: the utility model relates to a novelty, it is rational in infrastructure, combine ruler and protractor together, have covered a plurality of knowledge points, including the portrayal of position, angular surveying, cylinder, verify that the apex angle equals, explain supplementary angle definition and discernment convex lens and concave lens, played the effect of important supplementary guide in children's teaching, convenient operation is convenient for study, can popularize and apply by a large scale.

Drawings

Fig. 1 is a structural diagram (one) of a multifunctional ruler protractor of the utility model;

fig. 2 is a structural diagram (ii) of the multifunctional ruler protractor of the present invention.

Detailed Description

The technical solution of the present invention will be described in more detail and fully with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" 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 to simplify the description, but do not indicate or imply that the device or element 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.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In specific embodiment 1, a multifunctional ruler protractor comprises a ruler 1 and a protractor;

the protractor includes protractor 2 and lower protractor 3, the range of going up the protractor is 0-180, the range of lower protractor 3 is 0-360, it is equipped with first position marking 201 and a parallelogram structure's fretwork recess 202 on protractor 2 to go up, protractor 3 is equipped with second position marking 301 and a parallelogram structure's fretwork recess 302 down, wherein, first position marking 201 is half cross marking, including vertical positive north line and be located the northwest line and the northeast line of both sides angular bisector, second position marking 301 is half cross marking, including vertical positive south line and be located the southwest line and the southeast line of both sides angular bisector.

The upper side and the lower side of the ruler 1 are fixedly connected to the bottom edges of the upper protractor 2 and the lower protractor 3 respectively, the thickness of the ruler 1 is the same as that of the upper protractor 2 and the lower protractor 3, a third position marking 101 is arranged on the ruler 1, the right end of the ruler is sequentially provided with a hollowed-out groove 102, a convex lens 103 and a concave lens 104 which are of an oval structure, wherein the third position marking 101 is a cross marking and comprises a vertical front upper line, a rear lower line, a horizontal left line and a horizontal right line, and the ruler 1 is further marked with a west line and an east line corresponding to the first position marking 201 and the second position marking 301.

The specific using process is as follows: the straight ruler 1 is marked with 0-90 degree acute angle, 90 degree right angle, 360 degree peripheral angle, 180 degree obtuse angle, 180 degree straight angle and 180 degree angle to help the classification of the angles; the left half part of the top edge of the straight ruler 1 is used as a starting edge, the northeast line is used as a final edge, a schematic angle with an included angle of 135 degrees is formed, the right half part of the top edge of the straight ruler 1 is used as a starting edge, the northwest line is used as a final edge, a schematic angle with an included angle of 135 degrees is formed, and meanwhile, schematic angles with included angles of 30 degrees corresponding to the included angles of 135 degrees are respectively arranged on the straight ruler 1; the main body is carved in an auxiliary mode through the hollow grooves of the parallelogram structure and the oval structure, and the imaging rule is recognized through the convex lens and the concave lens.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may include, for example, fixed connections, detachable connections, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and all modifications, equivalents, improvements and the like that are made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a multi-functional ruler protractor, includes ruler and protractor, its characterized in that:

2. The multifunctional ruler protractor of claim 1, wherein: the first azimuth marking is a half cross marking and comprises a vertical true north line, and a northwest line and a northeast line which are positioned on angular bisectors on two sides.

3. The multifunctional ruler protractor of claim 1, wherein: the second direction marking line is a half cross marking line and comprises a vertical south line, a southwest line and a southeast line which are positioned on angular bisectors on two sides.

4. The multifunctional ruler protractor of claim 1, wherein: the third direction marking line is a cross marking line and comprises a vertical front upper line, a vertical rear lower line, a horizontal left line and a horizontal right line.