CN2220666Y

CN2220666Y - Moon phase instrument

Info

Publication number: CN2220666Y
Application number: CN 94244276
Authority: CN
Inventors: 郑海荫; 王正海; 陶反修
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-11-07
Filing date: 1994-11-07
Publication date: 1996-02-21
Anticipated expiration: 2004-11-07

Abstract

The utility model relates to moon phase instrument used for teaching for demonstrating moon phase variation situations. The utility model is composed of a moon body, a semicircle spherical shell of moon shadow, a moon shadow fixing plate, a handle with a shaft and sunlight fixing line. The months body is installed on the shaft on the upper end of the handle, the semicircle spherical shell of moon shadow is installed on a shaft on the outer side of the moon body, and the upper part of the semicircle spherical shell of moon shadow is fixedly provided with the moon shadow fixing plate which is provided with the rhombic sunshine fixing line with elastic rubber bands. The utility model has the advantages of simple structure, science, and direct viewing, the utility model substantially incarnates the revolution and rotation of moon and is favorable to the popularity of astronomical knowledge, and the utility model is an ideal teaching aid.

Description

Phases of the moon instrument

The utility model relates to a kind of moon and is subjected to solar irradiation to form the phases of the moon instrument of light and shade situation of change demonstration usefulness, is specially adapted on the primary school nature teaching classroom.

As everybody knows, the moon is in earth running, and oneself is also in rotation, thereby when also just causing the earth to revolve around the sun, the moon has also just produced a month phase change to the sun.The apparatus for demonstrating that a month phase change is arranged in the 5th the 15 class of primary school nature " exploring the secret of the moon " literary composition, (half is black by a spheroid for this device, half is white) and be with the handle of rotating shaft to constitute, this device can not complete reaction goes out the situation of change of the phases of the moon, because it has ignored the moon in earth movements, himself is also rotating, thereby causes illusion can for the student on understanding.

The purpose of this utility model is exactly at above-mentioned situation, and a kind of novel phases of the moon instrument is provided.

The purpose of this utility model is achieved like this, and the handle of spheroid with tape spool is fixed together, and spheroid refills in half garden spherical shell of expression moon shadow, dress is with fixed head on the spherical shell, fixed head is contained on the Handle axis, and the backguy of band lastex is arranged on the fixed head, is used for fixing a moon shadow fixed head.

The utility model scientific structure, reasonable, demonstrating visual help the complete understanding of student to moon phase change, improve teaching efficiency.

Below in conjunction with accompanying drawing structure of the present utility model is elaborated.

Fig. 1 is the utility model structural perspective.

Fig. 2 is a structure vertical view of the present utility model.

By Fig. 1, shown in 2, structure of the present utility model is, the handle 6 of tape spool 7 is equipped with in yellow spheroid 1 bottom, spheroid 1 tightens together with handle 6 through axle 7, spheroid 1 is sleeved in the black half garden spherical shell 2 of expression month shadow then, spherical shell 2 is contained on the axle 7 on spheroid both sides, can sway, a moon shadow fixed head 3 fixedly is equipped with on spherical shell 2 tops, on month shadow fixed head 3 the solar irradiation static line is housed, the solar irradiation static line is made of the white backguy 4 and the black backguy 5 of band degree of tightness bungee, be separately fixed at sunshine and show up and a month shadow face, black, white backguy is packed in moon shadow fixed head 3 tops with diamond shaped, and the degree of tightness bungee is generally 1 meter long, be contained in black respectively, two symmetrical water caltrop places (seeing shown in Figure 2) of white lineae trapezoidea, the part that yellow spheroid 1 exposes the black spherical shell is represented the solar light irradiation part.

Operating position of the present utility model is, solar irradiation static line 4 with phases of the moon instrument, 5 draw back fixing, white line on the sunny side, black line makes the figure viewed from behind part of the black half garden spherical shell of expression month shadow at yellow month spheroid 1 on moon shadow limit, and the demonstration human is being held handle 6 and upwards lifted in the place ahead, a little more than the crown, rotate in the original place from right to left, and the revolution of the moon with the earth done in imitation, represents the earth with demonstration people's head, on behalf of tellurian people, eyes see on the moon herein, as demonstrate the people and face whole months shadows (being black half garden spherical shell), the front-month then rotates when north, month shadow slowly is moved to the left, the light of the moon (being yellow spheroid part) then slowly moves past from the right side, and crescent moon promptly occurred, to winding up, to a month prestige, again from hoping lower edge by the moon, revert to month the first day of the lunar month afterwards, phases of the moon instrument spheroid circles, demonstrated the once circulation of month phase change, being month of the lunar calendar, finishing once revolution, also is synchronous rotation.

By above-mentioned situation as can be known, the utility model is used for demonstrating the changing condition of the phases of the moon and the principle of formation, given prominence to the moon in revolution with the earth, it half (front) always directed the earth, realized demonstrating out the revolution of the moon and rotation synchronously, reflected the situation of change of the phases of the moon accurately, make teaching visual and understandable, helping popularizing of astronomic knowledge, is desirable a kind of teaching aid, and it is promoted the use of and must be subjected to teachers and students' welcome deeply.

Claims

1, a kind of phases of the moon instrument that constitutes by the handle of yellow spheroid and tape spool, it is characterized in that yellow spheroid (1) bottom is equipped with handle (6) spheroid of tape spool (7), (1) tightens together through the same handle of axle (7) (6), spheroid (1) is sleeved on black half garden spherical shell (2) inboard of expression month shadow, spherical shell (2) is contained on the axle (7) on spheroid (1) both sides, can rotate around the axis, a moon shadow fixed head (3) fixedly is equipped with on spherical shell (2) top, on month shadow fixed head (3) the solar irradiation static line is housed.

2, phases of the moon instrument according to claim 1, it is characterized in that said solar irradiation static line is white backguy (4), black backguy (5) formation by band degree of tightness bungee, black, white backguy is packed in moon shadow fixed head (a 3) top with diamond shaped, and that the degree of tightness bungee is contained in respectively is black, two symmetrical water caltrop places of white lineae trapezoidea.