CN2357387Y

CN2357387Y - Magnetic globe

Info

Publication number: CN2357387Y
Application number: CN 98241072
Authority: CN
Inventors: 李海波
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-10-06
Filing date: 1998-10-06
Publication date: 2000-01-05
Anticipated expiration: 2008-10-06

Abstract

The utility model relates to a magnetic globe which is used for the use of the teaching and the simulating demonstration. The outer appearance is also composed of a spherical outer shell stuck with a world map; the magnetic field of the utility model is realized by the arrangement of a magnetic bar with permanent magnetism on the inner part of the spherical outer shell of the globe along the south and the north directions marked on the surface map of the utility model, and the polarity of the utility model is the same with that of the geomagnetic field. In addition, the spherical shell of the globe can be designed into a double-layer structure with an inner shell, and the outer shell and the inner shell are parted by a partition plate. A magnetic block with permanent magnetism can be embedded in the parted space to enhance and simulate the attractive force of the earth surface. The utility model has the advantages of simple structure and convenient machining; besides, the insufficiency of the bygone products is overcome, and the knowledge and the interest performances of the globe are respectively enhanced.

Description

A kind of magnetically globe

The utility model is a kind ofly to be used to impart knowledge to students and terrestrial globe that analog demenstration uses, it is to be with a magnetic field again to it on the function basis of existing terrestrial globe, simulate the magnetic direction of the earth and gravitation to strengthen the intellectual and interesting of terrestrial globe by emulation, it relates to the raising on structural improvement of existing product and the performance.

The spheroid of the terrestrial globe that we touched all just posts world map and can rotate along an axle now.Though it can make us realize the earth at an easy rate is a spheroid and can searches out the position of any point in the world on it, can also recognize that by it the earth is rotation how, or the like these spontaneous phenomenons, it has increased perceptual understanding for our knowledge.But seem to have ignored a problem up to now always, the earth is a big magnetic field, this characteristic never obtains to embody well on terrestrial globe, so, in the process of teaching and demonstration, just this phenomenon can not be showed, this can't but be the existing defective of existing terrestrial globe.

The purpose of this utility model designs the terrestrial globe that a kind of new structure is provided at this problem just, it is to be with a magnetic field again to it on the function basis of existing terrestrial globe, simulate the magnetic direction of the earth and gravitation to strengthen the intellectual and interesting of terrestrial globe by emulation, reach the purpose that improves teaching efficiency.

The purpose of this utility model realizes by following measure:

The magnetic terrestrial globe of this kind, its appearance also is to be made of a spherical housing that posts world map, realize by its inner structure device in its magnetic field, in the inside of terrestrial globe spherical housing along a permanent magnetism bar magnet is set on the south poles direction that its surperficial map identified, its polarity is consistent with the magnetic field of the earth, and it is fastened on the two ends up and down of terrestrial globe by a fixed leg at two ends up and down.In addition, also globe shell can be designed to the double-decker that has inner casing, can have dividing plate to separate between shell and the inner casing, but the magnetic patch of setting-in permanent magnetism is strengthening and the gravitation of simulation earth surface in the space that is separated out, and that its polarity also should keep is consistent with the magnetic field of the earth.

The drawing of accompanying drawing is described as follows:

Fig. 1 is the structure cut-open view of the utility model device

Below with reference to drawings and Examples the utility model is further described:

Shown in accompanying drawing 1, this kind be globe magnetically, and its appearance also is to be made of a spherical housing 1 that posts world map, and the employed material of processing shell is plastics, also can adopt the non-magnetic field shielding material manufacturing of some other types.In the inside of terrestrial globe spherical housing 1, along a permanent magnetism bar magnet 5 is set on the south poles direction that its map identified, its polarity is consistent with the magnetic field of the earth, and two ends are fastened on the two ends up and down of terrestrial globe about it by a fixed leg 6.Globe shell 1 is designed to the double-decker that has inner casing 2, can have dividing plate 3 to separate between shell 1 and the inner casing 2, but in the space that is separated out the magnetic patch 4 of setting-in permanent magnetism its polarity also keeps consistent with the magnetic field of the earth with the gravitation that strengthens earth surface.The spatial row that demarcation strip 3 is separated out is to arrange along terrestrial globe warp and parallel, is 15 degree along the angle intervals that is as the criterion with the centre of sphere between two row spaces of warp and parallel arrangement.Being set to of magnetic patch 4 along the parallel spatial disposition, empty row's spatial row between per two row.Bar magnet 5 and magnetic patch 4 all adopt rare earth permanent-magnetic material to make.So just can make the surface of terrestrial globe can attract some metal materials to simulate gravitational effect, in addition, because the polarity in magnetic field can also make terrestrial globe form this phenomenon of south poles, can also simulate the earth variation of magnetic field intensity now outward by changing the terrestrial globe inner structure and being provided with, for existing product has increased a new function.Overcome the existing deficiency of product in the past.

The utility model is compared with existing product to have simple in structurely, easy to process, and result of use is good, gram Take the existing deficiency of product in the past, strengthened the intellectual and interesting of tellurion.

Claims

1. globe magnetically, its appearance also is to be made of a spherical housing (1) that posts world map, it is characterized in that: inside in terrestrial globe spherical housing (1), along a permanent magnetism bar magnet (5) is set on the south poles direction that its map identified, its polarity is consistent with the magnetic field of the earth, two ends are fastened on the two ends up and down of terrestrial globe about it by a fixed leg (6), in addition, globe shell (1) is designed to the double-decker that has inner casing (2), can have dividing plate (3) to separate between shell (1) and the inner casing (2), but in the space that is separated out the magnetic patch of setting-in permanent magnetism (4) its polarity also keeps consistent with the magnetic field of the earth with the gravitation that strengthens earth surface.

2. magnetically globe according to claim 1 is characterized in that: above-mentioned bar magnet (5) and magnetic patch (4) all adopt rare earth permanent-magnetic material to make.

3. magnetically globe according to claim 1 is characterized in that: non-magnetic field shielding materials such as the spherical housing of terrestrial globe (1) employing plastics are made.

4. magnetically globe according to claim 1 is characterized in that: the spatial row that demarcation strip (3) is separated out is to arrange along terrestrial globe warp and parallel, is 15 degree along the angle intervals that is as the criterion with the centre of sphere between two row spaces of warp and parallel arrangement.