CN207517260U - A kind of geographical teaching teaching aid - Google Patents
A kind of geographical teaching teaching aid Download PDFInfo
- Publication number
- CN207517260U CN207517260U CN201721208903.4U CN201721208903U CN207517260U CN 207517260 U CN207517260 U CN 207517260U CN 201721208903 U CN201721208903 U CN 201721208903U CN 207517260 U CN207517260 U CN 207517260U
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- CN
- China
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- lower wall
- driving lever
- upper disk
- teaching aid
- teaching
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Abstract
The utility model provides a kind of geographical teaching teaching aid, and including semicircular upper disk and circular lower wall, upper disk is equal with the diameter of lower wall；The circle centre position of the lower wall is equipped with upright bar, and the circle centre position of upper disk is socketed on outside upright bar；The circumference of the lower wall is equipped with handle；The Arctic Circle, day arc line A, the tropic of cancer, equator, the tropic of Capricorn, day arc line B and the Antarctic circle are equipped on the lower wall successively；The upper disk includes arc side and diameter side；The diameter side is equipped with perpendicular to diameter side and is in conplane driving lever with upper disk, and driving lever is cuboid driving lever.Geographical teaching teaching aid has the advantages that simple in structure, easy to carry and is observed convenient for intuitive.
Description
Technical field
The utility model is related to a kind of teaching aid, specially a kind of geographical teaching teaching aid.
Background technology
In geography learning, the generation of phenomenon round the clock, the movement of subsolar point, solar noon sun height changing rule with
And the changing rule of day-night length is essential knowledge, for the student of firm studying the geography knowledge, these rules are non-
Often abstract, not readily understood and memory, therefore, corresponding teaching aid have to be conducive to help to learn to deepen to these basic common sense, rule
The awareness and understanding of rule however, in existing teaching aid, with the correlation model of stereochemical structure using more, are not easy to taking for student
Band, and recognize since the demonstration of stereochemical structure model can only provide visual sense organ to student, and rule can not be changed
Intuitively show, therefore, be badly in need of a kind of variation tendency that intuitive reaction rule can be provided for student, the vivid rule that shows
The geographical teaching aid of change procedure.
Invention content
In consideration of it, the utility model provides a kind of geographical teaching teaching aid, specially a kind of sight that can intuitively, vivid
Examine the geographical teaching of mobile phenomenon, subsolar point round the clock, solar noon sun height change rule and day-night length changing rule
Use teaching aid.Geographical teaching teaching aid has the advantages that simple in structure, easy to carry, highly practical and is observed convenient for intuitive.
On the basis of existing technology, the utility model provides a kind of geographical teaching teaching aid, including upper disk and lower wall,
Upper disk is semicircle, and lower wall is circle, and upper disk is equal with the diameter of lower wall；
The circle centre position of the lower wall is equipped with upright bar, and the circle centre position of upper disk is socketed on outside upright bar, and upper disk can do circle along upright bar
Zhou Yundong；The circumference of lower wall is equipped with handle, this teaching aid can be facilitated to carry；
The Arctic Circle, day arc line A, the tropic of cancer, equator, the tropic of Capricorn, day arc line B and the South Pole are equipped on the lower wall successively
Circle；
The upper disk includes arc side and diameter side；
Diameter side circle centre position is equipped with perpendicular to diameter side and is in conplane driving lever with upper disk, and driving lever is rectangular
Body driving lever, the length of driving lever are more than the radius of lower wall；Holding is stopped handle, stirs driving lever, upper disk can be with lower wall relative motion；
In this teaching aid, driving lever represents the direction and position of subsolar point, when subsolar point as driving lever is located at equator
When upper, i.e., in direct sunlight to equator when, then can intuitively observe the one side of direct sunlight as daytime, the one side blocked is black
Night, i.e. phenomenon round the clock；When subsolar point as driving lever rotates counterclockwise at the tropic of cancer or driving lever is by red by equator
When road starts to be rotated clockwise to the tropic of Capricorn, then the movement locus, polar day and polar night of subsolar point can be intuitively observed
Phenomenon, meanwhile, by the variation of day arc line A and day arc line B length, intuitively observe the changing rule that the days are long and the nights short；When too
Positive point of vertical with driving lever be located on equator when, i.e., in direct sunlight to equator when, the high noon height on equator is 90 °, high noon
Altitude of the sun successively decreases from equator to the two poles of the earth, and apart from equator, more remote solar noon sun height is smaller.
The lower wall is sandwich, and magnet A is equipped between interlayer.
The driving lever is sandwich, is equipped with the magnet B coordinated with magnet A between interlayer, driving lever position can be fixed,
So as to make in this teaching aid, the position of subsolar point can intuitively, image shows.
The back side of the lower wall is equipped with sucker, this teaching aid can be fixed by sucker.
The upper disk is disk in opaque semicircle, when mobile rotation of the upper disk with driving lever, can effectively be blocked
The label of the Arctic Circle, day arc line A, the tropic of cancer, equator, the tropic of Capricorn, day arc line B and the Antarctic circle on lower wall, so as to make
Raw intuitive, image the content understood and grasped this teaching aid and demonstrated.
The outside of the upright bar is socketed with linear bearing, and the outside of linear bearing is socketed with disk, makes disk can be smoothly
It moves in a circle around upright bar.
The driving lever is equipped with the straight-bar perpendicular to driving lever and with driving lever in the same plane, and straight-bar is tangent with lower wall, institute
The both ends for stating straight-bar are rotatably connected with connecting rod respectively, and connecting rod can be placed in the position tangent with lower wall.
Compared with prior art, the beneficial effects of the utility model：By the lower and upper disk for setting diameter equal, make this
In use, the effect of displaying is consistent with practical natural phenomena for teaching aid；By set it is vertical with diameter side and with upper Pan Chu
In conplane driving lever, disk is made to be rotated under the action of driving lever, it, can be intuitive using driving lever as sunlight point of vertical
It observes moving range, the changing rule of solar noon sun height and the changing rule of day-night length of subsolar point, makes rule
Rule shows image, intuitive, understanding, memory of the reinforcement student to related law；The design of above-mentioned technical proposal, provides one kind
Portable geographical teaching teaching aid, the teaching aid have the advantages that can intuitively, image show the natural law.
Description of the drawings
Fig. 1 is geographical teaching teaching aid structure schematic diagram in embodiment 1.
Fig. 2 is lower wall sectional view in embodiment 1.
Fig. 3 is upper disk sectional view in embodiment 1.
Fig. 4 is geographical teaching teaching aid structure schematic diagram in embodiment 2.
In figure, the upper disks of 1-, 2- lower walls, 3- upright bars, 4- linear bearings, 5- handles, 6- magnet As, 7- suckers, the 8- Arctic Circle,
9- day arc line A, the 10- tropic of cancer, 11- equator, the 12- tropic of Capricorn, 13- day arc line B, the 14- Antarctic circles, 15- arcs side, 16- are straight
Diameter side, 17- driving levers, 18- magnet Bs, 19- straight-bars, 20- connecting rods.
Specific embodiment
Below in conjunction with the accompanying drawings, the utility model is described in detail.
Embodiment 1：As shown in Fig. 1 ~ Fig. 3, the utility model provides a kind of geographical teaching teaching aid, including semicircle
Upper disk 1 and circular lower wall 2, upper disk 1 it is equal with the diameter of lower wall 2；
The circle centre position of the lower wall 2 is equipped with upright bar 3, and the outside of upright bar 3 is socketed with linear bearing 4, the outside of linear bearing 4
Disk 1 is socketed with, makes disk 1 that can smoothly move in a circle around upright bar 3；The circumference of lower wall 2 is equipped with handle 5, can facilitate this
Teaching aid carries；Lower wall 2 is sandwich, and magnet A 6 is equipped between interlayer；The back side of lower wall 2 is equipped with sucker 7, can be incited somebody to action by sucker 7
This teaching aid is fixed；
The Arctic Circle 8, day arc line A9, the tropic of cancer 10, equator 11, the tropic of Capricorn 12, day arc are equipped on the lower wall 2 successively
Line B13 and the Antarctic circle 14；
The upper disk 1 includes arc side 15 and diameter side 16；16 circle centre position of diameter side be equipped with perpendicular to diameter side 16 and
Conplane driving lever 17 is in upper disk 1, driving lever is cuboid driving lever, and the length of driving lever 17 is more than the radius of lower wall 2；It holds
It stops handle 5, stirs driving lever 17, upper disk 1 and 2 relative motion of lower wall；Driving lever 17 is sandwich, is equipped between interlayer and matches with magnet A 6
17 position of driving lever can be fixed in the magnet B 18 of conjunction, so as to make in this teaching aid, the position of subsolar point can intuitively, shape
Elephant shows；The upper disk 1 is disk in opaque semicircle, can be effective when mobile rotation of the upper disk 1 with driving lever 17
Block the Arctic Circle 8, day arc line A9, the tropic of cancer 10, equator 11, the tropic of Capricorn 12, day arc line B13 and the Antarctic circle on lower wall 2
14 label, so as to make the content understood and grasped this teaching aid and demonstrated that student is intuitive, vivid；
In this teaching aid, driving lever 17 represents the direction and position of subsolar point, when subsolar point as driving lever 17 is located at
When on equator 11, i.e., in direct sunlight to equator when, then can intuitively observe the one side of direct sunlight as daytime, one blocked
Face is night, i.e. phenomenon round the clock；When subsolar point as driving lever 17 rotates counterclockwise to the tropic of cancer 10 by equator 11
When place or driving lever 17 are rotated clockwise to the tropic of Capricorn 12 by equator 11, then the fortune of subsolar point can be intuitively observed
Dynamic rail mark, polar day and polar night phenomenon, meanwhile, by the variation of day arc line A9 and day arc line B13 length, intuitively observe that daytime is long
Night short changing rule；When subsolar point is located at driving lever 17 on equator 11, i.e., in direct sunlight to equator when, equator
High noon height on 11 is 90 °, can intuitively observe that solar noon sun height is successively decreased from equator 11 to the two poles of the earth, gets over apart from equator 11
Remote solar noon sun height is smaller.
Embodiment 2：On the basis of embodiment 1, as shown in Fig. 1 ~ Fig. 4, the driving lever 17 is equipped with perpendicular to driving lever 17
And the straight-bar 19 with driving lever 17 in the same plane, straight-bar 19 and lower wall 2 are tangent, and the both ends of the straight-bar 19 are rotatably connected with respectively
Connecting rod 20, connecting rod 20 can be placed in the position tangent with lower wall 2, i.e. straight-bar 19, connecting rod 20 is tangent with lower wall 2 simultaneously；When demonstration just
During noon altitude of the sun, which is fixed on tablet, if the sun is located at the end of driving lever 17, sunlight is northern along 17 direct projection of driving lever
20 ° of latitude, the solar noon sun height on 20 ° of north latitude are 90 °, i.e. the angle of driving lever 17 and straight-bar 19, by the connecting rod at 19 both ends of straight-bar
20 are respectively placed in the position tangent with lower wall 2, from the position of the sun to the interface point of weft and tangent line at line, then line is with cutting
The angle α and β of line are respectively the solar noon sun height of corresponding weft, by demonstration, can intuitively be observed, from north latitude
20 ° of beginnings, solar noon sun height is successively decreased to the two poles of the earth, 20 ° more remote apart from north latitude, and solar noon sun height is smaller.
Claims (7)
1. a kind of geographical teaching teaching aid, which is characterized in that including semicircular upper disk and circular lower wall, upper disk and lower wall
Diameter is equal；
The circle centre position of the lower wall is equipped with upright bar, and the circle centre position of upper disk is socketed on outside upright bar；The circumference of the lower wall is equipped with
Handle；
The Arctic Circle, day arc line A, the tropic of cancer, equator, the tropic of Capricorn, day arc line B and the Antarctic circle are equipped on the lower wall successively；
The upper disk includes arc side and diameter side；
Diameter side circle centre position is equipped with perpendicular to diameter side and is in conplane driving lever with upper disk, and driving lever is dialled for cuboid
Bar, the length of driving lever are more than the radius of lower wall.
2. geographical teaching teaching aid as described in claim 1, which is characterized in that the lower wall is sandwich, is set between interlayer
There is magnet A.
3. geographical teaching teaching aid as described in claim 1, which is characterized in that the driving lever is sandwich, is set between interlayer
There is the magnet B coordinated with magnet A.
4. geographical teaching teaching aid as described in claim 1, which is characterized in that the back side of the lower wall is equipped with sucker.
5. geographical teaching teaching aid as described in claim 1, which is characterized in that the upper disk is in opaque semicircle
Disk.
6. geographical teaching teaching aid as described in claim 1, which is characterized in that the outside of the upright bar is socketed with linear axis
It holds, the outside of linear bearing is socketed with disk.
7. geographical teaching teaching aid as described in claim 1, which is characterized in that the driving lever be equipped with perpendicular to driving lever and with
The straight-bar of driving lever in the same plane, straight-bar is tangent with lower wall, and the both ends of the straight-bar are rotatably connected with connecting rod respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721208903.4U CN207517260U (en) | 2017-09-20 | 2017-09-20 | A kind of geographical teaching teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721208903.4U CN207517260U (en) | 2017-09-20 | 2017-09-20 | A kind of geographical teaching teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207517260U true CN207517260U (en) | 2018-06-19 |
Family
ID=62533276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721208903.4U Expired - Fee Related CN207517260U (en) | 2017-09-20 | 2017-09-20 | A kind of geographical teaching teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207517260U (en) |
-
2017
- 2017-09-20 CN CN201721208903.4U patent/CN207517260U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180619 Termination date: 20190920 |
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| CF01 | Termination of patent right due to non-payment of annual fee |