CN205177280U - Accurate longitude and latitude model of self -control formula of cuting straightly - Google Patents

Abstract

The utility model provides an accurate longitude and latitude model of self -control formula of cuting straightly, is including the circular flat board of plural number piece, support, the outer shell of longitude and latitude and the outer shell of globe, central groove has all been opened to circular dull and stereotyped upper end and lower extreme along the diametric(al), leaves the connecting plate, the center department of connecting plate is equipped with the round hole, the circular dull and stereotyped edge of plural number piece the center fluted shaft is to inserting, connecting plate on the circular flat board of plural number piece central fluted shaft to arranging in proper order, the length that the ascending connecting plate of central fluted shaft constitutes is not more than the diameter of circular flat board, be equipped with the bracing piece in the round hole, support into a spheroid with the circular flat board of plural number piece, outer shell of longitude and latitude and the outer shell of globe overlap on the spheroid in proper order, the both ends of bracing piece are connected with the support in the spheroid. Compared with the prior art, the utility model discloses convenient for material collection, low cost, manufacturing method is simple, nimble group tears open, portable, and the synchronous study under giving a lesson is levied in the realization, it is visual in image, can help the student to understand the knowledge of graticules.

Description

Make direct insertion accurate longitude and latitude model by oneself

Technical field

The utility model relates to teaching aid field, is specifically related to the direct insertion accurate longitude and latitude model of a kind of self-control.

Background technology

In geography teaching in middle school, the earth and map are the introduction knowledge of Students ' Learning geography, are also chapters and sections---the requisite rudimentary knowledge of regional geography after study simultaneously.In this part teaching, usual needs help student to understand by model, especially graticules this part, but existing product on the market, mainly be used for telling about the earth for teacher and map knowledge designs, the use such as synchronous asynchronous study, autonomous learning, cooperative learning under inconvenient students in class, add that these products are not easy to carry, price is more expensive, cause student to can not get suitable model, be especially applicable to the homemade longitude and latitude model of student.

Summary of the invention

Technical problem to be solved in the utility model is, overcomes the above-mentioned defect that prior art exists, provides a kind of portable self-control direct insertion accurate longitude and latitude model.

It is make direct insertion accurate longitude and latitude model by oneself that the utility model solves the technical scheme that its technical matters adopts, and comprises plural block circular flat board, bearing, longitude and latitude casing and globe shell cover; Described circular dull and stereotyped top and bottom diametrically all have central channel, and leave web joint, the center of described web joint is provided with circular hole; Described plural block is circular dull and stereotyped along the axially insertion of described central channel; Web joint on the circular flat board of described plural block is axially arranged in order at central channel, and the length that central channel web joint is axially formed is not more than circular dull and stereotyped diameter, is provided with support bar in described circular hole, and circular for plural block flat board is supported to a spheroid; Described longitude and latitude casing and globe shell cover are placed on spheroid successively, and the two ends of described spheroid inner bracing piece are connected with bearing.

Further, described circular flat board preferably six pieces.

Further, the dihedral angle between described circular flat board is equal.

Further, described web joint is provided with reinforcement.

Further, described web joint is preferably located at described circular dull and stereotyped circle centre position, 1/2nd places of the dull and stereotyped radius of described circle or the circumference place of described circular flat board.

Further, described circular dull and stereotyped edge has about the symmetrical groove of described central channel.

Further, described groove is embedded in flexible cord.

Further, described elasticity cord has two classes, and a class is made up of a kind of color, is another kind ofly made up of two kinds of color interval.

Further, the preferred iron wire of described support bar.

Further, described support bar two ends are inserted with nut.

Compared with prior art, the utility model is drawn materials conveniently, and with low cost, manufacture method is simple; Be easy to carry, can effectively realize students in class attend class under synchronous study, when not using, the circle flat board making spheroid skeleton can be taken apart; Visual in image, can effectively help student to understand the knowledge of graticules, the circle flat board on spheroid and elasticity cord are similar to longitude and latitude.

Accompanying drawing explanation

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is circular dull and stereotyped schematic diagram;

Fig. 3 is the vertical view of web joint;

Fig. 4 is longitude and latitude casing schematic diagram;

Fig. 5 is globe shell cover schematic diagram.

Embodiment

To illustrate below in conjunction with accompanying drawing and embodiment further illustrates the utility model.

With reference to accompanying drawing 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the present embodiment comprises 6 pieces of circular flat boards 1, bearing 7, longitude and latitude casing 9 and globe shell cover 10; Circular flat board 1 top and bottom diametrically have central channel 3, leave web joint 4,2 pieces of circular web joints 4 of dull and stereotyped 1 are located at the circular circle centre position of dull and stereotyped 1,2 pieces of circular web joints 4 of dull and stereotyped 1 are located at 1/2nd places of dull and stereotyped 1 radius of described circle, 2 pieces of circular web joints 4 of dull and stereotyped 1 are located at the described circular circumference place of dull and stereotyped 1, the center of web joint 4 is provided with circular hole 8, and web joint 4 is provided with reinforcement 5; Axially insert along described central channel 3 for 6 pieces circular dull and stereotyped 1, the dihedral angle between adjacent circular flat board 1 is equal; Web joint 4 on 6 pieces circular dull and stereotyped 1 is axially arranged in order at central channel 3, and the length that central channel 3 web joint 4 is axially formed is not more than the circular diameter of dull and stereotyped 1; The circular edge of dull and stereotyped 1 has groove 6, and groove 6 is symmetrical about described central channel 3, and groove 6 is embedded in flexible cord 2; Elasticity cord 2 has two classes, and a class is made up of a kind of color, represents solid line, and for representing integer degree parallel, a class is made up of two kinds of color interval, represents dotted line, for representing non-integer degree parallel, as: the tropic of Capricorn, the tropic of Cancer, the Antarctic Circle, the Arctic Circle; Be provided with iron wire in circular hole 8, support to a spheroid by 6 pieces circular dull and stereotyped 1; Iron wire two ends are inserted with nut 11, and spheroid is fixed on iron wire by nut 11, spheroid can not be moved up and down along iron wire, and can rotate by axle centered by iron wire; Longitude and latitude casing 9 and globe shell cover 10 are placed on spheroid successively, and in spheroid, the two ends of iron wire are connected with bearing 7.

When not in use, 6 circular dull and stereotyped 1 are taken apart, is stacked together, the cylinder that just formation one is solid, very convenient to carry.

Claims (10)

1. make direct insertion accurate longitude and latitude model by oneself, it is characterized in that, comprise plural block circular flat board, bearing, longitude and latitude casing and globe shell cover; Described circular dull and stereotyped top and bottom diametrically all have central channel, and leave web joint, the center of described web joint is provided with circular hole; Described plural block is circular dull and stereotyped along the axially insertion of described central channel; Web joint on the circular flat board of described plural block is axially arranged in order at central channel, and the length that central channel web joint is axially formed is not more than circular dull and stereotyped diameter, is provided with support bar in described circular hole, and circular for plural block flat board is supported to a spheroid; Described longitude and latitude casing and globe shell cover are placed on spheroid successively, and the two ends of described spheroid inner bracing piece are connected with bearing.

2. the direct insertion accurate longitude and latitude model of self-control according to claim 1, it is characterized in that, described circular flat board is six pieces.

3. the direct insertion accurate longitude and latitude model of self-control according to claim 1 and 2, it is characterized in that, the dihedral angle between described adjacent circular flat board is equal.

4. the direct insertion accurate longitude and latitude model of self-control according to claim 1, it is characterized in that, described web joint is provided with reinforcement.

5. the direct insertion accurate longitude and latitude model of the self-control according to claim 1 or 4, is characterized in that, described web joint is located at described circular dull and stereotyped circle centre position, 1/2nd places of the dull and stereotyped radius of described circle or the circumference place of described circular flat board.

6. the direct insertion accurate longitude and latitude model of self-control according to claim 1, is characterized in that, described circular dull and stereotyped edge has about the symmetrical groove of described central channel.

7. the direct insertion accurate longitude and latitude model of self-control according to claim 6, it is characterized in that, described groove is embedded in flexible cord.

8. the direct insertion accurate longitude and latitude model of self-control according to claim 7, it is characterized in that, described elasticity cord has two classes, and a class is made up of a kind of color, is another kind ofly made up of two kinds of color interval.

9. the direct insertion accurate longitude and latitude model of self-control according to claim 1, it is characterized in that, described support bar is iron wire.

10. the direct insertion accurate longitude and latitude model of self-control according to claim 9, it is characterized in that, described support bar two ends are inserted with nut.