CN201719806U - Regular icosahedron modular block - Google Patents

Abstract

The utility model relates to education and teaching appliance, in particular relates to a regular icosahedron modular block. The regular icosahedron modular block comprises six modular blocks, wherein the first modular block adopts a regular triangular pyramid with 1 unit side length bottom surface and 0.95 unit side edge length; the second modular block is formed by combining two regular triangular pyramids in a side surface contact way; the third modular block is formed by combining three regular triangular pyramids in a side surface contact way; the fourth, the fifth and the sixth modular blocks are respectively formed by combining four regular triangular pyramids in a side surface contact way. A regular icosahedron can be built by taking modular blocks in Figure 1 to Figure 6 as well as two modular blocks in Figure 1, or by taking modular blocks in Figure 1 to Figure 6 as well as a modular block in Figure 2. Different mode of thinking can form various different building methods, people can use hands and work the brain during playing, train memory ability and cultivate imaginative thinking.

Description

The regular dodecahedron piece

Technical field

The utility model relates to the education and instruction apparatus, in teaching during geometric knowledge, the teacher is gained knowledge having a kind of effective instrument to make the student use institute after school, and use one's hands and brains.By the memory capability of training of students, cultivate thinking in images, excite the potential innovation ability of people.

Background technology

Technology content is on the low side in the present like product, they mainly are fit to the following crowd in child and middle school, and knowledge and technology content are higher and to be fit to great majority adults' like products less, particularly modern people's living standard improves, need carry out amusement on higher knowledge aspect, for adapting to this variation, the regular dodecahedron piece can address this problem, provide a kind of student of making can use the geometric knowledge of learning, the object for appreciation apparatus is pieced together in the space of active again manually brain.

Summary of the invention

As everyone knows, regular polygon has five kinds, and regular dodecahedron is that wherein face is counted a kind of of maximum, has 20,12 tops, and 30 ribs, its 20 faces all are impartial equilateral triangles.In order to solve the apparatus problem that people use one's hands and brains, the utility model provides a kind of regular dodecahedron piece according to regular polygon knowledge, piecing together in the object for appreciation to make people use one's hands and brains, the training memory capability is cultivated thinking in images, makes the brain balanced growth of the people left and right sides to improve intellectual level.

The scheme that the utility model adopted is:

The regular dodecahedron piece is made of six kinds of pieces, and first kind of piece is that the bottom surface length of side is 1 unit and incline length is the positive triangular pyramid of 0.95 unit, with described positive triangular pyramid as a base unit; Second kind of piece is by two described positive triangular pyramid sides the side to be combined contiguously and formed; The third piece is by three described positive triangular pyramid sides the side to be combined contiguously and formed; The 4th kind, the 5th kind, the 6th kind piece is by four described positive triangular pyramid sides the side to be combined contiguously and formed.According to regular polygon knowledge, regular dodecahedron can be made up of 20 positive triangular pyramids, the high distance that arrives any outer surface in the regular dodecahedron body-centered of described positive triangular pyramid, design the relation between the positive triangular pyramid bottom surface length of side and the incline length thus, when getting the described positive triangular pyramid bottom surface length of side when being 1 unit, it is 0.951 unit that incline is about.

The beneficial effects of the utility model are:

Described regular dodecahedron piece is reasonable in design, can make the student utilize institute to gain knowledge and use one's hands and brains, and the different modes of thinking forms multiple different spelling, and it is interesting to piece together object for appreciation.

Description of drawings

Further specify below in conjunction with figure of the present utility model:

Fig. 1 is described positive triangular pyramid schematic diagram, a promptly described base unit;

Fig. 2 is two described positive triangular pyramid sides when the side is combined contiguously, the expanded view of two bottom surfaces;

Fig. 3 is three described positive triangular pyramid sides when the side is combined contiguously, the expanded view of three bottom surfaces;

Fig. 4 is four described positive triangular pyramid sides when the side is combined contiguously, the expanded view of four bottom surfaces;

Fig. 5 is four described positive triangular pyramid sides when the side is combined contiguously, the expanded view of four bottom surfaces;

Fig. 6 is four described positive triangular pyramid sides when the side is combined contiguously, the expanded view of four bottom surfaces;

Fig. 7 is the regular dodecahedron schematic diagram that is combined into.

Among the figure, 1. base, 2. incline, 3. side.

The specific embodiment

Regular dodecahedron piece as described in constituting as six kinds of pieces of Fig. 1 to Fig. 6 is that the bottom surface length of side is 1 unit and incline length is the positive triangular pyramid of 0.95 unit as first kind of piece of Fig. 1, get incline length and be 0.95 unit and be piece can piece together easily into needs; As second kind of piece of Fig. 2 is by positive triangular pyramid side (3) as described in two side to be combined contiguously and formed; As the third piece of Fig. 3 is by positive triangular pyramid side (3) as described in three side to be combined contiguously and formed; As Fig. 4, Fig. 5, Fig. 6 is the side to be combined contiguously and having and only combination of forming by positive triangular pyramid side (3) as described in four, as the 4th kind, the 5th kind, the 6th kind piece.

Embodiment one: get Fig. 1 to Fig. 6 piece, get two Fig. 1 pieces again, be combined into a regular dodecahedron (Fig. 7);

Embodiment two: get Fig. 1 to Fig. 6 piece, get Fig. 2 piece again, be combined into a regular dodecahedron (Fig. 7).

Claims (1)

1. regular dodecahedron piece, it is characterized in that: be made of six kinds of pieces: first kind of piece is that the bottom surface length of side is 1 unit and incline length is the positive triangular pyramid of 0.95 unit, second kind of piece is by two described positive triangular pyramid sides (3) side to be combined contiguously and formed, the third piece is by three described positive triangular pyramid sides (3) side to be combined contiguously and formed, and the 4th kind, the 5th kind, the 6th kind piece is by four described positive triangular pyramid sides (3) side to be combined contiguously and formed.

Images