CN2720547Y

CN2720547Y - Calendar knowledge and three-ball operation corresponding simulator

Info

Publication number: CN2720547Y
Application number: CN 200420069774
Authority: CN
Inventors: 杨军
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-07-11
Filing date: 2004-07-11
Publication date: 2005-08-24
Anticipated expiration: 2014-07-11

Abstract

The utility model relates to a teaching aid, namely a simulator corresponding to calendar knowledge and three-ball running. The simulator comprises a cylindrical shell 1, a fixed rod 4 arranged in the center, a sun model 5 supporting the upper end and simulating the sun, and a sleeve 3 sleeved on the fixed rod; the lower end of the sleeve is provided with an umbrella-shaped gear 26 controlled by an external handle 29; three support rods 6, 24 and 25 which extend outwards are arranged in the middle of the sleeve, gears are arranged on the support rods, and a moon model 11 for simulating the moon and an earth model 9 for simulating the earth are arranged on the support rods; three inner gear rings 13, 16 and 28 which are respectively meshed with gears at the tail ends of the three supporting rods are arranged on the inner wall of the cylindrical shell, when the rocking handle rotates, the sleeve on the fixed rod rotates to drive the three supporting rods and the gears to move, and the rotation and revolution of the earth, the movement state of the moon around the earth and the seasonal change caused by the movement state can be demonstrated.

Description

Calendar knowledge is moved corresponding simulator with three balls

Technical field: the utility model is a kind of teaching aid, and promptly a kind of calendar knowledge is moved corresponding simulator with three balls.

Background technology: the moving law of the calendar knowledge and the sun, the earth, the moon is the knowledge that the pupil must understand., present when lecturing this part course, can only be by literal and picture.And illustrate that with this plane picture and text three-dimensional situation is the comparison difficulty.Certainly, instrument and the three-dimensional astronomical model that can demonstrate above-mentioned knowledge come out already, and, these facility complex and expensive can't spread to middle and primary schools classroom in all parts of the country.

Summary of the invention: the purpose of this utility model provides a kind ofly can demonstrate calendar knowledge and the sun, the earth, moon motion state, and cheap and simple, the stereoscopic teaching model that is suitable for imparting knowledge to students.

Above-mentioned purpose is realized by following technical scheme: develop a kind of calendar knowledge and move corresponding simulator with three balls.Its principal feature is: this simulator has a cylindrical case, and there is a fixed bar that makes progress at the center of outer casing bottom, and the day model of simulated solar is being supported in the fixed bar upper end, and hypomere is with a rotating sleeve pipe in the fixed bar; The sleeve pipe lower end is a umbrella gear, and the rotating shaft of the conical gear that is mated is led to outside the tube and is connected to rocking handle; The sleeve pipe middle part is provided with three overhanging cramp bars, in, down two cramp bars the middle part and terminal a rotating shaft that makes progress arranged all, the gear of horizontal is housed in the rotating shaft, the middle part of upper support bar and end are equipped with two tilting and mutual meshing gears, a pole that protrudes upward is housed on the periphery on plane on one of them gear, and the moon model of the simulation moon is equipped with in the pole upper end; String has a brace, jib head that the earth model of the simulation earth is housed in the center pit of this gear; The bevel type gear that is meshed with umbrella gear on the vertical shaft of middle cramp bar middle part is equipped with in the brace lower end; On the inwall of cylindrical case, be provided with three internal gears that are meshed with the terminal gear of three cramp bars respectively, when rocking handle rotates, sleeve pipe on the fixed bar rotates, drive three cramp bars and gear movement, rotation, revolution and the moon that can demonstrate the earth reach the seasonal variations that causes thus around the motion state of the earth.

Said three cramp bars are to be made of overcoat, expansion link and spring, and its expansion link inserts overcoat, and spring is contained in the overcoat to outer ejection expansion link.

Said cylindrical case is a cylindroid.

On the cover around the said fixed bar, be printed on negative and positive and close and go through compass, be printed on reticule on the card, the quantity of reticule is consistent with the fate in 1 year.

Adopt the calendar knowledge of such scheme to move corresponding simulation device with three balls, shake that handle can drive earth model and moon model carries out simulating sports, can demonstrate multiple astronomical calendar knowledge intuitively, simple in structure, honest and clean at the bottom of the cost, be suitable for classroom instruction and average family and use.

Accompanying drawing is introduced: Fig. 1 is a kind of front view of embodiment, and Fig. 2 is its vertical view.

Among the figure as seen: shell 1, loam cake 2, sleeve pipe 3, fixed bar 4, day model 5, upper support bar 6, gear 7, brace 8, earth model 9, pole 10, month model 11, gear 12, go up internal gear 13, brace seat 14, rotating gear 15, middle internal gear 16, gear 17, gear 18, gear 19, gear 20, gear 21, gear 22, vertical shaft 23, middle cramp bar 24, lower support bar 25, conical gear 26, the tube end 27, internal gear 28, rocking handle 29, compass 30, reticule 31 down.

Embodiment: as shown in the figure, this simulator has an oval-shaped cylindrical case 1, at the bottom of having under the shell tin 27, on cover 2 is arranged, a fixed bar 4 is arranged, at the bottom of fixed bar 4 lower ends are fixed on tin on 27 on the central axis of tube, cover 2 is gone here and there out in the upper end, supports day model 5.Rotating sleeve pipe 3 of fixed bar outside cover.Sleeve pipe 3 lower ends are provided with conical gear 26, and stretching out the outer bending of tube with the transverse axis of the conical gear of its engagement is one handle 28.Sleeve pipe 3 outsides are provided with three cramp bars in upper, middle and lower 6,24,25, and upper support bar 6 is inclined upwardly, and middle

lower support bar

24,25 levels are stretched out.The top of every cramp bar all is equipped with gear by rotating shaft, and its outmost three gears are meshed with three internal gears of upper, middle and lower 13,16,28 on the outer casing inner wall respectively.When shaking handle, sleeve pipe rotates, and three cramp bars are bright along with sleeve pipe rotates, and outer rotor and internal gear engagement are rotated.

Surface bearing two tilting gears 7 and 12 on the upper support bar 6, and gear 12 rotates back driven gear 7 and rotates, and the upper surface of gear 7 stretches out a pole 10, and a month model 11 is being supported in the top, can simulate the running of the moon around the earth.

At the center of gear 7, be provided with bigger circular hole, support the brace 8 of earth model 9 and therefrom went here and there.Brace 8 hypomere strings are adorned a gear 15 after crossing brace seat 14, be meshed with vertical shaft 23 upper end gears, vertical shaft upper end gear rotates under the drive of the gear 17,18 of middle cramp bar 24, driven gear 15, brace 8 and earth model 9 carry out spinning motion, under the drive of lower support bar 25, revolve round the sun around day simultaneously with three cramp bars.

For the earth's axis that guarantees earth directed north all the time, here taked two measures, the one, the earth supports with brace 8, and the 2nd, slowly rotate by the gear on the lower support bar 25 19,20,21,22, and constantly adjust brace 8 angles, thereby guarantee the correct orientation of the earth's axis by brace seat 14.

At loam cake middle part, printing off a disk below day model is compass 30, above the compass 30 by the fates in the 1 year reticule 31 of drawing, thereby demonstrate out each the important solar term and the variation in the four seasons exactly.

This simulator also useable electric moter drives.

Claims

1. a calendar knowledge is moved corresponding simulator with three balls, it is characterized in that: this simulator has a cylindrical case (1), there is a fixed bar that makes progress (4) at the center of shell (1) bottom, the day model (5) of simulated solar is being supported in fixed bar (4) upper end, and hypomere is with a rotating sleeve pipe (3) in the fixed bar (4); Sleeve pipe (3) lower end is umbrella gear (26), and the rotating shaft of the conical gear that is mated is led to outside the tube and is connected to rocking handle (29); Sleeve pipe (3) outside is provided with three overhanging cramp bars (6) (24) (25), in, down two cramp bars (24) (25) the middle part and terminal a rotating shaft that makes progress arranged all, the gear (17) (18) (19) (20) (21) (22) of horizontal is housed in the rotating shaft, the middle part of upper support bar (6) and end are equipped with two tilting and pitch wheels, on the periphery on the last plane of one of them gear (7) pole that protrudes upward (10) is housed, the moon model (11) of the simulation moon is equipped with in pole (10) upper end; String has a brace (8) in the center pit of this gear, and the earth model (9) of the simulation earth is equipped with in brace (8) upper end; The bevel type gear (15) that is meshed with umbrella gear on the middle cramp bar middle part vertical shaft (23) is equipped with in brace (8) lower end; On the inwall of cylindrical case (1), be provided with three internal gears (13) (16) (28) that are meshed with the terminal gear of three cramp bars respectively, when rocking handle (29) rotates, sleeve pipe (3) on the fixed bar (4) rotates, drive three cramp bars (6) (24) (25) and gear movement, rotation, revolution and the moon that can demonstrate the earth reach the seasonal variations that causes thus around the motion state of the earth.

2. calendar knowledge according to claim 1 is moved corresponding simulator with three balls, it is characterized in that: said three cramp bars (6) (24) (25) are to be made of overcoat, expansion link and spring, its expansion link inserts overcoat, and spring is contained in the overcoat to outer ejection expansion link.

3. calendar knowledge according to claim 1 is moved corresponding simulator with three balls, it is characterized in that: said cylindrical case (1) is a cylindroid.

4. calendar knowledge according to claim 1 is moved corresponding simulator with three balls, it is characterized in that: on said fixed bar (4) cover on every side, be printed on negative and positive and close and go through compass (30), be printed on reticule (31) on the card, the quantity of reticule is consistent with the fate in 1 year.