CN201126692Y - Earth and moon demonstration instrument - Google Patents
Earth and moon demonstration instrument Download PDFInfo
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- CN201126692Y CN201126692Y CNU2007201028071U CN200720102807U CN201126692Y CN 201126692 Y CN201126692 Y CN 201126692Y CN U2007201028071 U CNU2007201028071 U CN U2007201028071U CN 200720102807 U CN200720102807 U CN 200720102807U CN 201126692 Y CN201126692 Y CN 201126692Y
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Abstract
The utility model provides an earth-moon demonstrating instrument aiming at the problems of orally decryption by teachers or illustration for the relation of the sun, earth and moon in the present teaching situation. The earth-moon demonstrating instrument of the utility model comprises a base, an earth model arranged on the earth model pole, a moon model arranged on the moon model pole, a sun projecting machine. The base surface is arranged with an earth revolution track plate; the surface is arranged with earth-moon rotator which can rotate on the surface; the earth rotation shaft has linkage wit the moon track plate via a static cavity; the earth-moon tooth is a gear group composed by coaxial tri-gears; the shaft transverses the static cavity and passes the power to the moon track plate via the gear barrel and the earth rotation shaft via a bevel gear. The directional gear is supported on the static cavity, meshing the bevel tooth of the bevel gear with one gear of the earth rotation shaft. The earth-moon demonstrating instrument provided by the utility model can effectively simulate the moving relation of the sun, earth and moon and intuitively display the natural law of the seasons on the earth.
Description
Technical field
The present invention relates to a kind of earth-moon demonstration instrument.
Background technology
Relation for ground, the moon, day in the middle school geography class is very important, is the Lesson One in the students ' understanding solar system, universe.All be by picture and teacher explanation in the existing course, but this still is not difficult to understand the middle school student in evening for imaginal thinking capability.Particularly the earth is angled substituted around the four seasons that solar rotation and revolution cause, and the moon motion solar eclipse, the lunar eclipse that cause, and indigestion especially can only be by memorize mechanicalling.
Summary of the invention
At defective that exists in the prior art and deficiency, the objective of the invention is to propose a kind of earth-moon demonstration instrument, demonstration earth rotation that can image and revolving around the sun, and the moon is around the spontaneous phenomenon of revolution of earth.
In order to achieve the above object, the present invention proposes a kind of earth-moon demonstration instrument, comprising:
Described base 1 surface is provided with earth 's orbit dish 55, and described earth 's orbit dish 55 surfaces are provided with the ground moon motion means 33 that can rotate thereon; Described sun direct projection device 54 is fixed on described earth 's orbit dish 55 surfaces by sun direct projection device support 53;
The ground moon motion means 33 comprise a quiet tube 5, an end that is arranged on the line shaft 4 in the quiet tube 5 is fixed on the base 1, quiet tube 5 other ends connect rolling poles 56 by connecting rod 19, the main drive shaft 57 that line shaft 4 connects by driving stem 2; Main drive shaft 57 drives driving stem 2 and connecting rod 19 does relative motion, so that quiet tube 5 is done relative rotary motion with line shaft 4;
Earth's axis 13 is a tubular shafts, be arranged in the bearing cartridge 14, earth's axis 13 is provided with a gear earth's axis 13 and is tubular shafts, is arranged in the bearing cartridge 14, earth's axis 13 is provided with a gear and direction gear 15 interlocks, so that earth's axis 13 can be in rotation in bearing cartridge 14; Be provided with earth model pole 11 in the earth's axis 13 so that earth model 9 rotations; Bearing cartridge 14 is fixed with quiet tube 5;
Crowngear 8 is the axle center with the axle center of line shaft 4, is supported on the cylinder on quiet tube 5 tops; Its top is that an inclination angle is 66.5 ° of crowngears, is meshed with direction gear 15; The bottom is a cylinder gear, with the ground moon tooth 7 upper end gear be meshed;
Preferred as technique scheme, described lunar orbit dish 3 comprises an annulus and a tubular cylinder, there are 5 ° of angles at described annulus and the horizontal interface of described tubular cylinder level; Described tubular cylinder have one with the body concentric ring groove of described tubular column, described groove inside and outside wall be provided with the gear teeth and with speed change tooth 18 engagement, described tubular cylinder is supported on the quiet tube 5 and be that the axle center is whole with quiet tube 5 rotate.
Preferred as technique scheme also comprises the effective device 35 of sunlight; The effective device 35 of described sunlight comprises:
Described motion lamp stand 31 is provided with gear, gear 28 engagements of described gear and motor 27;
Connect the top that handle 29 is arranged on described shell 32.Connect handle 29 is connected in sun direct projection device 54 for effective device 35 integral body of sunlight rotating cylinder.
Preferred as technique scheme,, shell 32 tops of the effective device 35 of described sunlight are provided with the electrode commutator 58 of the direction of current that is used to change motor 27.
Preferred as technique scheme, described electrode commutator 58 comprises:
Base plate 45, base plate 45 1 ends are provided with support 44 and conductor contact chip 43, and another side is provided with to move about smears groove 38;
On support 44; Pair is stuck up bar 41 and is mainly stuck up bar 42 and be located at respectively on the support 44, and can be that rotate in the axle center with the cross bar of support 44;
Described pair sticks up bar 41 and the main bar 42 that sticks up is hollow tubular, in mercury is housed;
Conductor contact chip 43 is located on the base plate 45, with motor 27 electrical links, and be arranged on main circuit contacts sheet clutch mutually of sticking up bottom, bar 42 two ends;
Main stick up bottom surface, bar 42 two ends and respectively be provided with a power supply, and the loop is opposite, and with effective device 35 electrical links of described sunlight;
Move about to smear the patter 39 that moves about is housed in the groove 38, the patter 39 that moves about is to be fixed with two risers at the two ends of a leveling board, and the centre has one to move about and smear 40; Patter 39 integral body of moving about are moved about moving about to smear in the groove 38; Moving about, to smear 40 be a crooked needle, sticks up bar 41 to smear pair.
Preferred as technique scheme also comprises: analytic accounting day table 47 an and secondary note day table 12;
Described analytic accounting day, table 47 was gear disks, was supported on the quiet tube 5, and it is parallel with the gear on the earth's axis 13 and be meshed that its side is provided with gear; Its card is provided with the mark that metering earth's axis 13 rotates all numbers;
A described secondary meter day table 12 is annual disks, is fixed on the quiet tube 5, and its center of circle is concentric with earth's axis 13 axle center, and its card is vertical with earth's axis 13, and card is provided with meter day scale.
Preferred as technique scheme also comprises astronomical phenomena observation point 34; Described astronomical phenomena observation point 34 comprises: earth model 9, observation point support 24, latitude pointer 20, observation point 21, latitude instrument 23;
Described observation point support 24 bendings are so that the rotating part of the observation point 21 on top can be around the rotation of the center of circle of earth model 9; Described observation point support 24 bottoms are inserted in the earth's axis 13 and with earth rotation axle 13 and are rotated; Bent head end point position, described observation point support 24 tops corresponding to the center of circle of earth model 9, and described top song head end is rotatedly connected by stationary shaft and observation point 21, and is fixedly linked with latitude instrument 23;
Preferred as technique scheme also comprises: sight glass 36, and described sight glass 36 comprises: two total reflection prisms 25, convex lens 48, concavees lens 49, inspection section 26, sight glass support 51 and fixing buttons 52;
Adjustable sight glass support 51 supports described sight glass 36.
The earth-moon demonstration instrument that the utility model proposes, can demonstrate day,, month relation, the movement locus of model of celestial bodies and these model of celestial bodies intuitively is provided for the user, help the user and understand.
Description of drawings
Fig. 1 is the one-piece construction synoptic diagram of earth-moon demonstration instrument preferred embodiment of the present utility model;
Fig. 2 is ground moon motion means 33 the structural representation of earth-moon demonstration instrument preferred embodiment of the present utility model;
Fig. 3 is the front view of the effective device 35 of the sunlight of earth-moon demonstration instrument preferred embodiment of the present utility model;
Fig. 4 is effective device 35 left views of the sunlight of earth-moon demonstration instrument preferred embodiment of the present utility model;
Fig. 5 is astronomical phenomena observation point 34 synoptic diagram of earth-moon demonstration instrument preferred embodiment of the present utility model;
Fig. 6 is sight glass 36 synoptic diagram of earth-moon demonstration instrument preferred embodiment of the present utility model;
Fig. 7 is sight glass support 51 synoptic diagram of earth-moon demonstration instrument preferred embodiment of the present utility model;
Fig. 8 is electrode commutator 58 enlarged diagrams of earth-moon demonstration instrument preferred embodiment of the present utility model;
Fig. 9 is patter 39 synoptic diagram that move about of earth-moon demonstration instrument preferred embodiment of the present utility model;
Figure 10 is promotion pin 46 synoptic diagram of earth-moon demonstration instrument preferred embodiment of the present utility model;
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
The utility model preferred embodiment as shown in Figure 1, comprise sun direct projection device 54, month motion means 33, astronomical phenomena observation point 34, the effective device 35 of sunlight, sight glass 36;
Sun direct projection device 54 is fixed in the top of earth 's orbit dish 55 by sun direct projection device support 53.
Ground month motion means 33 structures comprise as shown in Figure 2:
Sit 1 and 4 line shaft lower ends and join at the end, holds up month motion means 33 entirely.Its bottom is equipped with scroll wheel and is not drawn, and can rotate on earth 's orbit dish 55 for a ground month motion means 33.
Connecting rod 19 1 ends and quiet tube 5 are fixedly linked, and the other end and rolling pole 56 are fixedly linked.
In the motion of earth-moon demonstration device, main drive shaft 57 drives driving stem 2 and connecting rod 19 does relative motion, thereby makes quiet tube 5 do relative rotary motion with line shaft 4.Whole kinematic system medium power axle 4 with respect to the motion of quiet tube 5 just in time with native system in the motion of " earth " revolution be constant speed in the same way.
The top of crowngear 8 is crowngears, and the inclination angle is 66.5 °, and is consistent with the inclination angle of ecliptic plane with the earth's axis; The bottom is a cylinder gear.This gear is the axle center with the axle center of line shaft 4, is supported on the cylinder on quiet tube 5 tops.Its cylinder gear is meshed with the upper end gear of ground month tooth 7; Its crowngear is meshed with direction gear 15.
Earth's axis 13 is tubular shafts, has two gears on it.This axle is inserted in the bearing cartridge 14, accepts the power that direction gear 15 transmits, rotation in bearing cartridge 14 by a gear on the axle; Another gear drive analytic accounting day table 47 rotates.Can inject observation point support 24 and earth model pole 11 in its tubular shafts, allow the purpose of astronomical phenomena observation point 34 and earth model 9 rotations to reach.
Bearing cartridge 14 is fixed on the quiet tube 5, and the axial line of its axial line and line shaft 4 is in same plane, and is identical with the degree of tilt of crowngear 8, is 66.5 ° with horizontal plane angle promptly.He rotates earth's axis 13 in order to support earth's axis 13 in its tube.
A secondary meter day table 12 is annual disks, is fixed on the quiet tube 5, and its center of circle is concentric with earth's axis 13 axle center, and its card is vertical with earth's axis 13, and card is provided with meter day scale.This table is to cooperate table 47 meter day analytic accounting day, and is long in order to show less day.
Analytic accounting day, table 47 was gear disks, was supported on the quiet tube 5, and it is parallel with a gear on the earth's axis 13 and be meshed that its side is provided with gear, accepted power that earth's axis 13 transmits and rotation.Its card is provided with the mark that metering earth's axis 13 rotates all numbers, thereby shows the day long of " earth " operation, the day of its demonstration is long be bigger day long.
The length of motion lamp stand 31 equals the diameter of moon model 10 movement locus.Face towards the gear 28 of motor 27 is provided with the special gear teeth, is meshed with gear 28, and the upper central place is provided with the device that spotlight 30 is installed.
Connect handle 29 and be connected on 32 shells, be connected in the rotating cylinder of sun direct projection device 54 for effective device 35 integral body of sunlight.
The center of top of shell 32 also is equipped with electrode commutator 58, and the effect of electrode commutator 58 is the direction of current that change motor 27, and promptly the both positive and negative polarity of power supply changes the rotation direction of motor 27.
Electrode commutator 58 structures comprise shown in Fig. 8 to 10:
Support 44 is fixed on the base plate 45, and pair is stuck up bar 41 and mainly stuck up bar 42 and be located at respectively on the support 44, is that rotate up and down in the axle center as seesaw with the cross bar of support 44.These two stick up bar all is hollow tubular, the bigger material of proportion that interior dress mercury one class can free move to two ends in pipe under action of gravity.At the main bar 42 that sticks up, the effect of this material is to increase to stick up the stability of bar 42 after swinging on one side, increases good contact of the conductor piece with the base conductor contact chip 43 that stick up the rod end subfacies; Sticking up bar 41 in pair is to increase its gravity after swinging on one side, so that force the main bar 42 that sticks up to swing to one side thereupon.
Conductor contact chip 43 is located on the base plate 45, joins with motor 27, and the circuit contacts sheet clutch mutually bottom the master is stuck up bar 42 two ends.
The master is stuck up bottom surface, bar 42 two ends respectively a power supply, and the loop is opposite, and purpose is the direction of current that changes motor 27, and then reaches the rotation direction that changes motor 27.The circuit of these two power supplys derives from the effective device 35 of sunlight.
Base plate 45 is provided with support 44, conductor contact chip 43 on one side, and another side is provided with to move about smears groove 38.
Move about to smear the patter 39 that moves about is housed in the groove 38.
The patter 39 that moves about is to be fixed with two risers at the two ends of a leveling board, and the centre has one to move about and smear 40.They are an integral body, whole move about moving about to smear in the groove 38.
Moving about, to smear 40 are crooked needles that are contained in patter 39 central authorities of moving about, for smearing the usefulness that pair is stuck up bar 41.
The using method of these parts:
Load onto promotion pin 46 at the two ends of the effective device 35 of sunlight, motion lamp stand 31 respectively, electrode commutator 58 is contained in the center of top place of the effective device 35 of sunlight.When 31 motions of motion lamp stand, promoting pin 46 just promote the to move about riser at patter 39 two ends moves moving about to smear groove 38 in, move about and smear 40 also operations thereupon, when running to a certain degree, move about and smear 40 and just just in time smear the end that pair sticks up bar 41 perks and fall, thereby force a main end that sticks up bar 42 perks also to be fallen, and then reach the direction of current that changes motor 27, reach the purpose that motor 27 changes rotation direction.
Astronomical phenomena observation point 34 structures as shown in Figure 5, astronomical phenomena observation point 34 comprises earth model 9, its main element is an observation point support 24.This support is the curved bar of a special shape, and the rotating part that its crooked fundamental purpose is a top observation point 21 can rotate around " the earth's core " " north and south ".Insert in the earth's axis 13 and with its rotation its underpart; The bent head end point in its top just is " the earth's core ", is rotatedly connected by stationary shaft and observation point 21 herein, is fixedly linked with latitude instrument 23.
" on " pointer 22 vertically is contained on observation point 21 limits, the overhead direction of expression observation point 21.
The main effect of astronomical phenomena observation point 34 is to allow the observer get back to " earth " by sight glass 36 go up to observe phenomenons such as the phases of the moon that this demonstration device demonstrates, solar eclipse, lunar eclipse.
Earth model 9 is spheroids, is connected as a single entity with earth model pole 11 stationary phase.Earth model pole 11 is inserted in the earth's axis 13, with its rotation.
Sight glass 36 structures as shown in Figure 6 and Figure 7, sight glass 36 mainly is made of 25 two of total reflection prisms, convex lens 48, concavees lens 49, inspection section 26 and sight glass support 51 and fixing button 52, it is periscope and telescopical assembly.Total reflection prism 25 lays respectively at two ends in the inspection section 26, and convex lens 48 and concavees lens 49 are between two prisms 25, and the total reflection prism 25 of convex lens 48 and one side constitutes object lens, and the total reflection prism 25 of concavees lens 49 and one side constitutes eyepiece.Inspection section 26 can be rotated by two parts butt joint, and purpose is to be convenient to observe.
During use sight glass support 51 placed on the relevant position on the demonstration board, object lens one end of sight glass 36 is placed on the observation point 21, eyepiece one end is placed on the sight glass support 51, mixes up angle and fixes with fixing button 52.The observer can see the phenomenon that will demonstrate from eyepiece, also can utilize the multimedia camera that observed phenomenon is projected to screen and get on, and allows more people see the phenomenon that will observe simultaneously.
Earth-moon demonstration device using method:
Each parts of earth-moon demonstration device are coupled together, energized, the light with spotlight 30 transfers to horizontal direct projection " the earth's core " then." the earth's core " is positioned at a handle axis of rotation of observation point 21 and the centre of sphere of earth model 9.
1, when demonstration and moon related phenomena, on the basis that mixes up in front, spotlight 30 is transferred to aims at moon model 10 by adjusting motion lamp stand 31 again.
Demonstration is when observing the phenomenon that occurs on the moon on earth, loads onto astronomical phenomena observation point 34 on ground moon motion means 33, the phenomenon of utilizing sight glass 36 to occur from " earth " observation moon.Adjusting observation point 21 can observe from different latitude.
Demonstration because of day, the moon, the phenomenon that occurs on earth of three's position relation, on ground moon motion means 33, load onto earth model 9, can directly on earth model 9, see corresponding phenomenon.
When 2, the demonstration and the moon were irrelevant, turned off respective switch during phenomenon some that produces on the earth at sunshine, and spotlight 30 is remained on the central authorities of shell 32, do not do side-to-side movement.Other motion conditions remains unchanged.
Certainly; the utility model also can have other embodiment; under the situation that does not deviate from the utility model spirit and essence thereof; the person of ordinary skill in the field works as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of claim of the present utility model.
Claims (8)
1, a kind of earth-moon demonstration instrument is characterized in that: comprise base (1), be arranged on earth model (9) on the earth model pole (11), be arranged on moon model (10), sun direct projection device (54) on the moon model pole (16);
Described base (1) surface is provided with earth 's orbit dish (55), and described earth 's orbit dish (55) surface is provided with the ground moon motion means (33) that can rotate thereon; Described sun direct projection device (54) is fixed on described earth 's orbit dish (55) surface by sun direct projection device support (53);
Comprise a quiet tube (5) at ground moon motion means (33), an end that is arranged on the line shaft (4) in the quiet tube (5) is fixed on the base (1), quiet tube (5) other end connects rolling pole (56) by connecting rod (19), the main drive shaft (57) that line shaft (4) connects by driving stem (2); Main drive shaft (57) drives driving stem (2) and connecting rod (19) does relative motion, so that quiet tube (5) is done relative rotary motion with line shaft (4);
Lunar orbit dish (3) is supported on quiet tube (5) and goes up also and can rotate with respect to quiet tube (5), and moon model pole (16) is the L type, so that the moon model (10) on the moon model pole (16) can rotate around earth model (9);
Earth's axis (13) is a tubular shafts, is arranged in the bearing cartridge (14), and earth's axis (13) is provided with a gear and direction gear (15) interlock, so that earth's axis (13) can be in rotation in bearing cartridge (14); Be provided with earth model pole (11) in the earth's axis (13) so that earth model (9) rotation; Bearing cartridge (14) is fixing with quiet tube (5);
A ground month tooth (7) is a gear set that coaxial three gears are formed, and its axle passes quiet tube (5), and rotational support is on quiet tube (5); One of them gear is meshed with the gear of line shaft (4); One of them gear is meshed power is passed in earth's axis (13) by the lower post generating gear of crowngear (8); One of them gear is meshed with the upper gear of gear cylinder (6) power is passed in moon model (10) and lunar orbit dish (3);
Crowngear (8) is the axle center with the axle center of line shaft (4), is supported on the cylinder on quiet tube (5) top; Its top is that an inclination angle is 66.5 ° of crowngears, is meshed with direction gear (15); The bottom is a cylinder gear, is meshed with the upper end gear of ground moon tooth (7);
Gear cylinder (6) two ends are provided with the gear teeth, and the centre is provided with a pair of fixedly spindle nose; Vertical and this axial line of process of the axial line of two spindle noses; It is supported on the quiet tube (5), is that rotate in the axle center with the axial line of quiet tube (5); The gear teeth of its upper end are meshed with a ground month gear 7, and the gear teeth of its lower end are meshed with speed gear (18), drive lunar orbit dish 3 and rotate, and the fixedly spindle nose in the middle of it connects the end points below the moon pole (16);
Direction gear (15) is supported on the quiet tube (5), is meshed with the umbrella shape tooth of crowngear (8) and a gear on the earth's axis (13).
2, earth-moon demonstration instrument according to claim 1 is characterized in that, described lunar orbit dish (3) comprises an annulus and a tubular cylinder, and there are 5 ° of angles at described annulus and the horizontal interface of described tubular cylinder level; Described tubular cylinder have one with the body concentric ring groove of described tubular column, described groove inside and outside wall be provided with the gear teeth and with speed change tooth (18) engagement, described tubular cylinder is supported on that quiet tube (5) is gone up and be that the axle center is whole with quiet tube (5) rotate.
3, earth-moon demonstration instrument according to claim 2 is characterized in that, also comprises the effective device of sunlight (35); The effective device of described sunlight (35) comprising:
Shell (32), shell (32) comprise the rectangular body rod groove that motion lamp stand (31) is installed that is positioned at its top, and the joint face of the company's of installation handle 29 and the motor box that motor 27 is installed that is positioned at its underpart;
Described motion lamp stand (31) is provided with gear, gear (28) engagement of described gear and motor (27);
Motor (27) is arranged at the bottom of described shell (32) the inside, drives motion lamp stand (31) left and right sides to-and-fro movement by gear (28);
Connect the top that handle (29) is arranged on described shell (32).Connect handle (29) is connected in sun direct projection device (54) for the effective device of sunlight (35) integral body rotating cylinder.
4, earth-moon demonstration instrument according to claim 3 is characterized in that, shell (32) top of the effective device of described sunlight (35) is provided with the electrode commutator (58) of the direction of current that is used to change motor (27).
5, earth-moon demonstration instrument according to claim 4 is characterized in that, described electrode commutator (58) comprising:
Base plate (45), base plate (45) one ends are provided with support (44) and conductor contact chip (43), and another side is provided with to move about smears groove (38);
On support (44); Pair is stuck up bar (41) and main stuck up bar (42) and be located at respectively on the support (44), and can be that rotate in the axle center with the cross bar of support (44);
Described pair sticks up bar (41) and main to stick up bar (42) be hollow tubular, in mercury is housed;
Conductor contact chip (43) is located on the base plate (45), with motor (27) electrical links, and be arranged on main circuit contacts sheet clutch mutually of sticking up bottom, bar (42) two ends;
Main stick up bar (42) bottom surface, two ends and respectively be provided with a power supply, and the loop is opposite, and with the effective device of described sunlight (35) electrical links;
Move about to smear the patter that moves about (39) is housed in the groove (38), the patter that moves about (39) is to be fixed with two risers at the two ends of a leveling board, and the centre has one to move about and smear (40); The patter (39) that moves about is whole to move about moving about to smear in the groove (38); Moving about, to smear (40) be a crooked needle, sticks up bar (41) to smear pair.
6, earth-moon demonstration instrument according to claim 5 is characterized in that, also comprises: analytic accounting day table (47) and secondary note day table (12);
Described analytic accounting day table (47) is a gear disk, is supported on the quiet tube (5), and it is parallel with the gear on the earth's axis (13) and be meshed that its side is provided with gear; Its card is provided with the mark that metering earth's axis 13 rotates all numbers;
A described secondary meter day table (12) is an annual disk, is fixed on the quiet tube (5), and its center of circle is concentric with earth's axis (13) axle center, and its card is vertical with earth's axis (13), and card is provided with meter day scale.
7, earth-moon demonstration instrument according to claim 6 is characterized in that, also comprises astronomical phenomena observation point (34); Described astronomical phenomena observation point (34) comprising: earth model (9), observation point support (24), latitude pointer (20), observation point (21), latitude instrument (23);
Described observation point support (24) bending is so that the rotating part of the observation point on top (21) can be around the rotation of the center of circle of earth model (9); Described observation point support (24) bottom is inserted in the earth's axis (13) and with earth rotation axle (13) and is rotated; Bent head end point position, described observation point support (24) top corresponding to the center of circle of earth model (9), and described top song head end is rotatedly connected by stationary shaft and observation point (21), and is fixedly linked with latitude instrument (23);
Observation point (21) is a disk, and this disk bottom is provided with bearing and links to each other with the stationary shaft of observation point support 24;
Latitude instrument (23) is a transparent semi-disc, has scale on its circumference, is fixed on the stationary shaft of observation point support (24).
Latitude pointer (20) is fixed on the bearing of observation point (21) bottom, and vertical with the card of observation point (21).
8, earth-moon demonstration instrument according to claim 7, it is characterized in that, also comprise: sight glass (36), described sight glass (36) comprising: two total reflection prisms (25), convex lens (48), concavees lens (49), inspection section (26), sight glass support (51) and fixing button (52);
Total reflection prism (25) lays respectively at the interior two ends of inspection section (26), convex lens (48) and concavees lens (49) are positioned between two total reflection prisms (25), the total reflection prism (25) of convex lens (48) and one side constitutes object lens, and the total reflection prism (25) of concavees lens (49) and one side constitutes eyepiece;
Adjustable sight glass support (51) supports described sight glass (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201028071U CN201126692Y (en) | 2007-10-19 | 2007-10-19 | Earth and moon demonstration instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201028071U CN201126692Y (en) | 2007-10-19 | 2007-10-19 | Earth and moon demonstration instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201126692Y true CN201126692Y (en) | 2008-10-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201028071U Expired - Fee Related CN201126692Y (en) | 2007-10-19 | 2007-10-19 | Earth and moon demonstration instrument |
Country Status (1)
| Country | Link |
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| CN (1) | CN201126692Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111028656A (en) * | 2019-12-09 | 2020-04-17 | 合肥正宇自动化科技有限公司 | Celestial body movement demonstration device based on gravity well and demonstration method thereof |
-
2007
- 2007-10-19 CN CNU2007201028071U patent/CN201126692Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111028656A (en) * | 2019-12-09 | 2020-04-17 | 合肥正宇自动化科技有限公司 | Celestial body movement demonstration device based on gravity well and demonstration method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081001 Termination date: 20091119 |