CN2297767Y

CN2297767Y - Space-time motion globe

Info

Publication number: CN2297767Y
Application number: CN 97210216
Authority: CN
Inventors: 王洪志; 王爱华
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-04-29
Filing date: 1997-04-29
Publication date: 1998-11-18
Anticipated expiration: 2007-04-29

Abstract

The utility model relates to a space-time motion globe. A support shaft (3) is arranged between south and north poles in a cavity body. One end of the support shaft is provided with a motor (4). An output shaft of the motor is provided with a rubber body (5). The rubber body is contacted with the inner cavity of a sphere in friction. The support shaft is provided with a circular light shade. Both sides of the light shade are respectively provided with bulbs in different colors. Besides the basic functions of an ordinary globe, the utility model also has the functions of diurnal variation presentation, time zone identifying presentation, etc. The utility model is suitable for primary and middle school students to learning and can be used for reading times and decoration in families and hotels.

Description

The spatiotemporal motion terrestrial globe

The utility model belongs to and relates to terrestrial globe manufacturing field.

Present various terrestrial globes, function singleness can not dynamically be expressed the spinning motion of the earth, can not show round the clock interesting spatiotemporal motion phenomenons such as Changing Pattern visually.

The purpose of this utility model is a kind of spatiotemporal motion terrestrial globe that can overcome the above shortcoming of prior art of design, makes it to have the function of the objective law that can intuitively dynamically express the spinning motion of the earth and change round the clock.

The purpose of this utility model is to realize by following design.

One back shaft is set between south poles in cavity, and a termination of back shaft is equipped with motor, is equipped with rubber bodies on the motor output shaft, rubber bodies and sphere cavity rubbing contact; Be equipped with a garden shape shadow shield on the back shaft, shadow shield both sides branch is equipped with heterochromatic bulb.

After the as above design of having adopted, motor is by the rubber bodies friction gearing, earth cavity was circled around pole axis in per 24 hours, split heterochromatic bulb in shadow shield both sides and shadow shield, to change round the clock visually and be divided into different two photochromic hemisphere, dynamically demonstration is come out, and can obtain the indication that anywhere was in daytime, night or early morning at that time at any time on terrestrial globe, makes people (especially students in middle and primary schools and children) understand the rule of earth movements intuitively.

Description of drawings is as follows:

Fig. 1 is the partial sectional view of the utility model embodiment.

Fig. 2 is the inner mounting structure figure of the utility model.

Fig. 3 is the K portion enlarged drawing of Fig. 2.

See figures.1.and.2 and can see, terrestrial globe is made up of spheroid 1 and support 2, and south poles has a back shaft 3 in spheroid, lays a stepper motor 4 in the upper end of back shaft, is equipped with rubber bodies 5 on the motor output shaft, and rubber bodies closely contacts with spheroid 1 inside surface.Can see in conjunction with Fig. 1 and Fig. 3, drive spheroid rotation (and 3 supporting motors of back shaft do not rotate with motor output shaft) by friction when motor rotates.Can see by Fig. 2, peace one garden shape shadow shield 6 on back shaft, respectively there is bulb the shadow shield both sides, and wherein side lamp bubble 7 sends out light deep blue, represents night; Opposite side is represented daytime with incandescent light.

By geographical knowledge as can be known, the irradiating angle of the middle sun is in continuous change throughout the year, for further simulating the change of four seasons solar illumination angle exactly, reflection more true to nature changes annual sunshine, the utility model has designed and has made the shadow shield angle adjusting mechanism, can see in conjunction with Fig. 2, can be spliced by left plate (6a) and two of right panels (6b) at shadow shield, one transverse axis 8 passes back shaft 3 and is connected on two shadow shields (6a and 6b), back shaft is rotated (from Fig. 2 around transverse axis 8, can make back shaft 3 change and produce the rotation of paper over to along the direction of arrow), thereby, only need back shaft is rotated corresponding angle, can simulate sun-exposed operation round the clock in certain season and change.

In addition, also can establish an annular time ruler 9 on the terrestrial globe equator, time ruler divides 24 equal portions, represents 24 hours.The scale that different colours is arranged on the time ruler is represented time of different time zone respectively, as Beijing time, and the London time etc.The above-mentioned vertical corresponding time ruler scale separately of place, standard time city punctuate, i.e. the decidable time zone time separately of waiting.

For increasing the location recognition effect, can on the relevant position in earth housing surface standard time city, be embedded the point-like luminophor.World's major cities punctuate place on the terrestrial globe adopts optical fiber to replace, no matter so in the dark or bright place, these name a person for a particular job glittering, and different colours optical fiber sends the light of different color and lusters, represents different kinds of cities.In addition, for avoiding the middle slit light leak that the support bar position is set of shadow shield, the element that is in the light of flexibility or rigidity can be set at these positions.

This terrestrial globe mainly is suitable for students in middle and primary schools' study, family, hotel timing and decoration.

Claims

1, a kind of spatiotemporal motion terrestrial globe by bearing be connected earth cavity on the bearing etc. and form, is characterized in that:

A) back shaft (3) is set in cavity between south poles, a termination of back shaft is equipped with motor (4), is equipped with rubber bodies (5) on the motor output shaft, rubber bodies (5) and sphere cavity rubbing contact;

B) be equipped with a garden shape shadow shield (6) on the back shaft, shadow shield both sides branch is equipped with heterochromatic bulb.

2, spatiotemporal motion terrestrial globe according to claim 1 is characterized in that, a transverse axis (8) by back shaft (3) is arranged on the shadow shield.

3, spatiotemporal motion terrestrial globe according to claim 1 and 2 is characterized in that, is embedded with the point-like luminophor on the relevant position in earth housing surface standard time city.