CN202677690U

CN202677690U - Micro molecular model aid

Info

Publication number: CN202677690U
Application number: CN 201220136563
Authority: CN
Inventors: 李奴义
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-03-31
Filing date: 2012-03-31
Publication date: 2013-01-16
Anticipated expiration: 2022-03-31

Abstract

The utility model belongs to a micro molecular model aid, and comprises a sphere which represents atom, a connecting rod which represents chemical bond and a spherical surface positioning case, and the micro molecular model aid is characterized in that two ends of the connecting rod connect a cavity position determined on the sphere outer surface by the spherical surface positioning case to form the micro molecular model aid. The micro molecular model aid has the following beneficial effects that 1) the raw material of the model has the advantages of low cost and easy acquisition, the product cost is low, the self-made or batch production is easy to be carried out; 2) the member volume of the model is small, the member quantity is less, thereby the micro molecular model aid is being easy to realize one student one aid; and 3) the model member is difficult to be damaged, the self repairing is easy to be carried out even the damage is generated, so that the utilization rate is high. The micro molecular model aid can be widely used for teaching and learning substance molecules on a chemical class for the teachers and students in university and middle school.

Description

A kind of miniature molecular model teaching aid

Technical field

The utility model belongs to a kind of miniature molecular model teaching aid.

Background technology

The tradition molecular model has the drawbacks such as volume is large, the member utilization factor is low, connection is loosening or stiff, not portable, is difficult to accomplish student's staff one cover.Upper class hour teacher can only be with one to be set to the classroom, and teacher assembles demonstration, and the student watches at the scene, and because of viewing angle and far and near difference, the student can not correctly understand the characteristics of molecular structure.Designed in advance the hole on the spheroid of traditional molecular model, the spheroid specificity is high, and utilization factor is low, needs a large amount of spheroids, and in use, the connection that easily occurs between coupling shaft and the spheroid is loosening or stiff, so that some spheroid can not use.

The utility model content

The utility model purpose is the weak point that exists in order to solve above-mentioned prior art, and a kind of component volume of model is little, the number of components is few, is convenient to student's staff one cover, a kind of miniature molecular model teaching aid that cost is low and designed.

The utility model adopts following technical scheme for achieving the above object:

A kind of miniature molecular model teaching aid of the present utility model, comprise that the spheroid that represents atom and the connecting link that represents chemical bond and location at spherical surface shell form, it is characterized in that, determine VOID POSITIONS with the location at spherical surface shell at outer surface of spheroid, with the VOID POSITIONS on two terminations connection spheroids of connecting link, consist of miniature molecular model teaching aid again.

Described a kind of miniature molecular model teaching aid is characterized in that described location at spherical surface shell is equilateral spherical triangle, trirectangular spherical triangle, the isocseles spherical triangle isometrical with the spheroid sphere diameter.

Described a kind of miniature molecular model teaching aid is characterized in that, described connecting link two ends are pointed and establish threaded connecting link, or an end is pointed, and the other end is established threaded connecting link.

[0010]The beneficial effects of the utility model: one, the prices of raw and semifnished materials of model are cheap and be easy to get, and cost of products is low, are easy to self-control or batch production.Two, the component volume of model is little, the number of components is few, is convenient to student's staff one cover.Three, the member of model is not fragile, even damage, easily repairs voluntarily yet, and utilization factor is high.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is member sphere structure schematic diagram;

Fig. 2 is location at spherical surface shell (equilateral spherical triangle) structural representation;

Fig. 3 is connecting link 3 structure schematic diagram;

Fig. 4 is connecting link 3 ' structure schematic diagram;

Fig. 5 is the model schematic diagram as an example of a methane molecule example.

Embodiment

Shown in accompanying drawing 1-5, wherein: 1 spheroid, 2 location at spherical surface shells, 3,3 ' connecting link.

A kind of miniature molecular model teaching aid of the present utility model, comprise that the spheroid 1 that represents atom and the connecting link 3 that represents chemical bond and location at spherical surface shell 2 form, determine VOID POSITIONS with location at spherical surface shell 2 at spheroid 1 outside surface, with the VOID POSITIONS on two terminations connection spheroids 1 of connecting link 3, consist of miniature molecular model teaching aid again.

[0016]Described a kind of miniature molecular model teaching aid, described location at spherical surface shell 2 are the spherical triangle isometrical with spheroid 1 sphere diameter, equilateral spherical triangle, trirectangular spherical triangle, isocseles spherical triangle etc.

Described a kind of miniature molecular model teaching aid, described connecting link 3 two ends be pointed and establish threaded connecting link, or an end is pointed, the other end establish threaded connecting link 3 '.

Embodiment

The methane molecule structural model

As shown in Figure 5, the characteristics of methane molecule structure: four hydrogen atoms lay respectively on four summits of positive tetrahedron, and carbon atom is positioned at the center of positive tetrahedron.Select the spheroid of two kinds of different colours, wherein a kind of one, another kind of four, select two equilateral spherical triangles and four two ends to be designed to pointed and establish threaded connecting link 3.Two spherical triangles are close on the sphere of a spheroid 1 in the mode that certain two limit overlaps, and four summit A, B, C, D are the position in four holes.Respectively four VOID POSITIONS with the direction of vertical sphere normal four connecting links 3 of screwing on, take off spherical triangle, at the other end of connecting link 3 four spheroids of screwing in the same way respectively.The molecular model of namely for methane.

Claims

1. miniature molecular model teaching aid, comprise that the spheroid (1) that represents atom and the connecting link (3) that represents chemical bond and location at spherical surface shell (2) form, it is characterized in that, determine VOID POSITIONS with location at spherical surface shell (2) at spheroid (1) outside surface, use again two terminations of connecting link (3) to connect VOID POSITIONS on the spheroids (1), consist of miniature molecular model teaching aid.

2. a kind of miniature molecular model teaching aid according to claim 1 is characterized in that, described location at spherical surface shell (2) is equilateral spherical triangle, trirectangular spherical triangle, the isocseles spherical triangle isometrical with spheroid (1) sphere diameter.

3. a kind of miniature molecular model teaching aid according to claim 1 is characterized in that, described connecting link (3) two ends are pointed and establish threaded connecting link, or an end is pointed, and the other end is established threaded connecting link.