CN207731542U - Three-dimensional lunar phase demonstration instrument - Google Patents

Abstract

The utility model provides a kind of three-dimensional lunar phase demonstration instrument, it includes pedestal, Y shaped bracket, annular back plate, annular panel, model moon ball, change, blanking disc, shading dial；Organic collocation such as the transformation radially rotated back and forth by light-transparent model moon global shell, the transformation of change left-right rotation and blanking disc, realizing can reflect that the daily phases of the moon of the lunar calendar regards shape, the moon three-dimensional can be presented again by the demo function of sunlight illuminated hemisphere scene, contribute to people to the understanding of moon phase cause and changing rule and related celestial body mastery of knowledge, is especially suitable for applying in geography teaching in middle school and teenager's activity to popularize scientific knowledge.

Description

Three-dimensional lunar phase demonstration instrument

Technical field

The utility model is related to a kind of three-dimensional lunar phase demonstration instruments.

Background technology

The moon is unique earth-circling natural satellite.Moon itself does not shine, but can reflected sunlight.Due to day, Month three's relative position changes over time and constantly, therefore makes to be located at the moon quilt seen by tellurian observer Part is illuminated also to change constantly, to generate it is different regard shape, the variously-shaped of the discount vibram outlet of the moon is called the phases of the moon.

In the first half of the month of the lunar calendar, when the moon and the sun are in same direction, the moon does not have sunlight photograph in face of earth side It penetrates, the phases of the moon that we can't see the moon is known as crescent（It is north）；Of that month spherical surface is illuminated the fraction on the right of earth side by the sun, This hook-shaped phases of the moon is known as crescent；Of that month spherical surface on the right of earth side by the sun to being illuminated, the dark phases of the moon in this bright left side in the right side The referred to as moon at the first quarter（It winds up）；Of that month spherical surface is illuminated to most of on the right of earth side by the sun, and this phases of the moon is known as gibbous moon；It is of that month Spherical surface is all illuminated earth side by the sun, and match this moon full moon（It hopes）.

In lunar calendar the second half of the month, of that month spherical surface is illuminated the most of of the earth side left side by the sun, and this phases of the moon is also referred to as Gibbous moon；Of that month spherical surface is illuminated the left side of earth side by the sun, and the dark phases of the moon in this bright right side in a left side becomes the moon at the last quarter（Lower edge）；When Fraction of the moon in face of the earth side left side is illuminated by the sun, and this hook-shaped phases of the moon is also referred to as crescent（Or waning moon）； When of that month spherical surface is completely disappeared earth side by the part that the sun illuminates, crescent occurs again.

The discount vibram outlet variation of the phases of the moon is very regular, and the average period between crescent is 29.53 days twice.Moon and answer The variation of beginning provides a kind of scale of Dose times to people.For the moon month of China using crescent as the junior one, the moon at the first quarter is first Seven, the eighth day of lunar month, full moon are 15,16, and the moon at the last quarter are 22,23；Moslem's calendar then with crescent first appear for Beginning monthly.In middle school geography textbook, moon phase cause is only illustrated with a secondary moon phase variety schematic diagram, this moon phase transformation Change schematic diagram and existing moon phase variety signal teaching aid is presented in a planar form, it is difficult to student be allowed to fully understand why the moon is total There is hemisphere to be illuminated by sunlight and people see the origin causes of formation of the different phases of the moons.

Utility model content

The purpose of this utility model is to provide for a kind of three-dimensional lunar phase demonstration instrument, it is a kind of the lunar calendar to be reflected per life The teaching demonstration device of shape is mutually regarded, which three-dimensional can be presented the moon by the scene of sunlight illuminated hemisphere and reflection The daily phases of the moon of the lunar calendar regards shape.

The utility model is realized in this way the solid lunar phase demonstration instrument, it includes pedestal, Y shaped bracket, the annular back of the body Plate, annular panel, model moon ball, change, blanking disc, shading dial；The lower end of the Y shaped bracket through rack shaft with Pedestal connects, and Y shaped bracket is arbitrarily front and back to be adjusted the angle；The annular back plate is identical as annular panel appearance and size；The change Outer diameter be slightly less than the internal diameter of Y shaped bracket, slightly larger than the outer diameter of model moon global shell, the thickness of change is slightly less than for the internal diameter of change The thickness of Y shaped bracket, the outer of change are equipped with lug, set a radial through-hole in change lug, change be set to annular back plate and It is sheathed between annular panel and together the maximum gauge position of model moon global shell；The model moon global shell and Y shaped bracket Be fixedly connected, the model moon global shell it is motionless；The global shell light transmission of the model moon；The first half of global shell set up one perimeter separately and omited the model moon More than the open slot of semi arch；The diameter of the blanking disc is slightly less than the internal diameter of model moon global shell, and blanking disc is set to the model moon In global shell；Blanking disc is opaque, and blanking disc is wherein uniformly provided with several LED chips, blanking disc outer and blanking disc on one side Shaft connects, and blanking disc shaft passes through the through-hole of the lug in change, the dynamic cooperation of through-hole of blanking disc shaft and lug, blanking disc The end of shaft is arranged shading dial and knob.Left and right pushes knob, change and the blanking disc left and right within the scope of 0 °~180 ° Direction rotates；Turning knob, blanking disc do 0 °~180 ° range internal diameters always back rotation in model moon global shell.

Annular panel described in the utility model uses transparent material, and 30 are dispersed on the panel scale markings of outer Evenly divided and the junior one correspond to words and phases of the moon pattern to 30.

The lug position of change described in the utility model and corresponding radial position are respectively provided with an arrow logo outwardly.

It is two rows of on shading dial described in the utility model to be distributed the lunar calendar junior one to 15 and 16 to 30.

In order to give model moon global shell to illuminate, LED drive module is through the LED chip and external power supply on conducting wire and blanking disc Connection.

The utility model has the beneficial effects that passing through light-transparent model moon global shell, the transformation and shading of change left-right rotation Organic collocation such as the transformation that disk radially rotates back and forth, realizing can reflect that the daily phases of the moon of the lunar calendar regards shape and solid The moon is presented by the demo function of sunlight illuminated hemisphere scene, contribute to people to the understanding of moon phase cause and changing rule and Related celestial body mastery of knowledge is especially suitable for applying in geography teaching in middle school and teenager's activity to popularize scientific knowledge.

Description of the drawings

Fig. 1 is the utility model front view.

Fig. 2 is the utility model left view.

Fig. 3 is blanking disc described in the utility model and knob vertical view.

Fig. 4 is Y shaped bracket schematic diagram described in the utility model.

Fig. 5 is change schematic diagram described in the utility model.

Fig. 6 is blanking disc schematic diagram described in the utility model.

Fig. 7 is that blanking disc is inserted in change schematic diagram.

Fig. 8 is model moon body diagram described in the utility model.

Specific implementation mode

The utility model is described in further detail with reference to the accompanying drawings and detailed description.Scope of protection of the utility model It is not limited to the statement of the following contents.

As shown in Fig. 1~8, embodiment includes pedestal 1, Y types holder 2, ring-like panel 3, ring-like backboard 4, model moon spherical shell Body 5, change 6, blanking disc shaft 7, blanking disc 8 etc..1 length of pedestal is 320mm, and width is 200 mm；The Y types 2 thickness of holder is 10 mm, and it is 278 mm that the outer diameter of the upper end semicircular ring, which is 328 mm internal diameters,（Semicircular ring both ends respectively cut out 8 mm）, 21 a diameter of 6 mm length of rack shaft of lower end is 120 mm；The ring-like panel 3 uses thickness for 4 mm's Transparent material, outer diameter are that 328 mm internal diameters are 228 mm, and periphery is equipped with panel scale markings 31, panel scale markings 31 On have 30 lattice evenly divideds and the junior one to 30 words and the corresponding phases of the moon, on the junior one to 15 is evenly distributed on counterclockwise Semicircle（Blue bottom wrongly written or mispronounced character）, 16 to 30 are also evenly distributed on lower half circle counterclockwise（Blue bottom The Scarlet Letter）, correspond to the phases of the moon and fill out Fill yellow；The appearance and size of the ring-like backboard 4 is identical as annular panel, no graphic context label；The model moon global shell The sphere of 228 mm light-permeable lunar globes of outer diameter is chosen, and a road width 8mm perimeters are opened up slightly larger than semi arch in sphere upper end Open slot 51；The thickness of the change 6 is 9mm, and outer diameter is 276 mm, and internal diameter is 230 mm；The change lug 61 Width be 16 mm, be highly 26 mm；The change 6 is set at change lug 61 there are one the arrow mark 62 of arrow outwardly （Blue bottom wrongly written or mispronounced character）, the arrow mark 62 of an arrow outwardly also is provided at its radial symmetric（Blue bottom The Scarlet Letter）, in change lug 61 middle parts open up the radial through-hole of one and the dynamic cooperation of blanking disc shaft 7（Diameter is slightly larger than 6 mm）；The shading dial 63 thickness are 5 mm, and outer diameter is 80 mm, and internal diameter is slightly larger than 6 mm, 64 Shang You of shading scale markings, 2 half circles, 15 decile Scale and corresponding word, the interior half circle arranged clockwise junior one to 15 words（Blue bottom wrongly written or mispronounced character）, outer half circle arranged counterclockwise 16 to 30 words（Blue bottom The Scarlet Letter）；The blanking disc shaft 7 is using 6 mm internal diameters of outer diameter, 3 mm stainless steel pipes, length 110 mm or so, outboard end are connect with knob 71, and inner end and blanking disc 8 are radially connected；The blanking disc 8 use thickness for The opaque insulating sheet material of 1.5 mm, a diameter of 220 mm are uniformly distributed 32 LED chips 82 in LED lamp panel 81, and general power is The power cord of 16W, LED chip 82 are connect by the endoporus of blanking disc shaft 7 with the output end of LED drive module 83, LED drivings The input terminal of module 83 is connect with external power supply.

In use, the orientation of adjustment pedestal and the elevation angle of Y type holders make the sight of annular panel face observer, according to agriculture One day is gone through by the arrow in change（Upward arrow corresponds to lunar calendar first half of the month, and lower arrow corresponds to lunar calendar the second half of the month）Move to annular panel pair Answer on position, then the arrow on knob be threaded on shading dial corresponding position, after powering on, the model moon global shell exist It becomes clear hemisphere dark state, and observer's face annular panel and is observed along normal direction in hemisphere in three dimensions Be depending on shape the lunar calendar day the phases of the moon.

Claims (5)

1. three-dimensional lunar phase demonstration instrument, it is characterized in that：It includes pedestal, Y shaped bracket, annular back plate, annular panel, model moon ball Body, change, blanking disc, shading dial；The lower end of the Y shaped bracket is connect through rack shaft with pedestal, before Y shaped bracket is random After adjust the angle；The annular back plate is identical as annular panel appearance and size；The outer diameter of the change is less than the interior of Y shaped bracket Diameter, the internal diameter of change are more than the outer diameter of model moon global shell, and the thickness of change is less than the thickness of Y shaped bracket, and the outer of change is set There is a lug, a radial through-hole is set in change lug, change is set between annular back plate and annular panel and is sheathed on together The model moon global shell maximum gauge position, the model moon global shell be fixedly connected with Y shaped bracket, the model moon global shell it is motionless；Institute State the global shell light transmission of the model moon, the model moon first half of global shell set up the open slot that one of perimeter is more than semi arch separately；The screening The diameter of CD is less than the internal diameter of model moon global shell, and blanking disc is set in model moon global shell；Blanking disc is opaque, blanking disc Be wherein uniformly provided with several LED chips on one side, blanking disc outer is connect with blanking disc shaft, blanking disc shaft pass through change on The dynamic cooperation of the through-hole of the through-hole of lug, blanking disc shaft and lug, the end of blanking disc shaft is arranged shading dial and knob； Left and right pushes knob, change and the blanking disc left and right directions within the scope of 0 °~180 ° to rotate；Turning knob, blanking disc is in the model moon 0 °~180 ° range internal diameters always back rotation is done in global shell.

2. three-dimensional lunar phase demonstration instrument according to claim 1, it is characterized in that：The annular panel uses transparent material, outside 30 evenly divideds and the junior one are dispersed on the panel scale markings on edge to 30 correspondence words and phases of the moon pattern.

3. three-dimensional lunar phase demonstration instrument according to claim 1, it is characterized in that：The lug position of the change and corresponding radial direction Position is respectively provided with an arrow logo outwardly.

4. three-dimensional lunar phase demonstration instrument according to claim 1, it is characterized in that：On the shading dial at the beginning of two rows of distribution lunar calendars One to 15 and 16 to 30.

5. three-dimensional lunar phase demonstration instrument according to claim 1, it is characterized in that：LED drive module is through on conducting wire and blanking disc LED chip and external power supply connection.