CN201242828Y - Clock demonstration device for teaching - Google Patents
Clock demonstration device for teaching Download PDFInfo
- Publication number
- CN201242828Y CN201242828Y CNU200820187703XU CN200820187703U CN201242828Y CN 201242828 Y CN201242828 Y CN 201242828Y CN U200820187703X U CNU200820187703X U CN U200820187703XU CN 200820187703 U CN200820187703 U CN 200820187703U CN 201242828 Y CN201242828 Y CN 201242828Y
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- China
- Prior art keywords
- housing
- shaft
- gear
- driven
- driving gear
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model provides a clock demonstration device for teaching, which structurally comprises a housing, a driving shaft and two driven shafts, wherein the driving shaft and the two driven shafts are arranged on the housing in parallel, three driving gears are arranged on the driving shaft, a first driven gear and a shaft bush are arranged on the first driven shaft, a second driven gear is arranged on the shaft bush, a third driven gear is arranged on the second driven shaft, the first driving gear and the first driven gear are meshed for transmission according to the proportion of 1 to 1, the first driven shaft is provided with a minute hand, the shaft bush is provided with a hour hand, a knob is arranged at lower end of the driving shaft, the third driving gear is provided with a minute-hand dial, the third driven gear is provided with a hour hand dial, and the shell at the joint of the two dials is provided with a display window. The device has the advantages of reasonable design, simple structure, low manufacture cost, convenient operation, easy teaching and studying.
Description
(1) technical field
The utility model relates to a kind of instruments used for education, specifically a kind of teaching clock and watch apparatus for demonstrating.
(2) background technology
The first grade of primary school course has the content of courses of understanding time, when requiring according to analog timepiece, the minute hand position, accurately says the concrete moment, and is the calculating of some after how long, and get off with digital recording, in order to cultivate children's Mathematics Application ability.Therefore but this is extremely difficult to the still poor child of language understanding power who is just beginning school soon, and teacher also can feel helpless saying class hour.
(3) summary of the invention
Technical assignment of the present utility model is at the deficiencies in the prior art, provide a kind of reasonable in design, simple in structure, easy to operate, be convenient to the teaching clock and watch apparatus for demonstrating that teacher religion and student learn.
The technical scheme that its technical matters that solves the utility model adopts is:
Teaching clock and watch apparatus for demonstrating, comprise housing and a main drive shaft and two driven shafts of being arranged on the housing, main drive shaft and two driven shafts be arranged in parallel, main drive shaft in the housing is provided with three driving gears, first driven shaft in the housing is provided with first follower gear and axle sleeve, axle sleeve is provided with second follower gear, second driven shaft in the housing is provided with the 3rd follower gear, first driving gear and first follower gear are with the ratio engaged transmission of 1:1, second driving gear and second follower gear are with the ratio engaged transmission of 1:12, the 3rd driving gear and the 3rd follower gear are with the ratio engaged transmission of 1:1, first driven shaft that stretches out housing is provided with minute hand, the axle sleeve that stretches out housing is provided with hour hands, stretch out in housing the lower end of main drive shaft, and it is provided with knob, and the 3rd driving gear is provided with the minute hand index dial, the 3rd follower gear is provided with the hour hands index dial, and the housing of minute hand index dial and hour hands index dial junction is provided with display window.
Teaching of the present utility model clock and watch apparatus for demonstrating, its using method is as follows:
The teacher is doing when operation demonstration to the student, turning knob, and under the effect of main drive shaft, first driving gear, first follower gear and first driven shaft, minute hand and minute hand index dial rotate synchronously; Simultaneously under the effect of main drive shaft, second driving gear, second follower gear and axle sleeve, the velocity of rotation of hour hands and minute hand is 1:12, and by the shape of hour hands index dial and minute hand index dial as can be known, both velocities of rotation also are 1:12.Like this, the position of left side hour hands and minute hand just shows with digitized forms by right side minute hand index dial and hour hands index dial, is convenient to the knowledge of teacher's instruction about the clock and watch aspect.
Teaching of the present utility model is used the clock and watch apparatus for demonstrating compared with prior art, and the beneficial effect that is produced is:
1) reasonable in design, simple in structure, low cost of manufacture, easy to operate, easy religion are easily learned.
2) this device cooperates by the simplest plastic gear, accurately analog timepiece the time, the position relation of minute hand in rotating, main is by digital displaying window, can be with accurate demonstration concrete moment at that time of digital form.For example: 03: 27, the demonstration of branch was a continually varying, and the time apparent number be that discontinuity jump to change, between 7.01 and 7.59, the time several 7 constant.
(4) description of drawings
Accompanying drawing 1 is an inner sectional structure synoptic diagram of the present utility model;
Accompanying drawing 2 is the plan structure synoptic diagram of display window among Fig. 1.
Among the figure, 1, housing, 2, main drive shaft, 3, first driven shaft, 4, second driven shaft, 5, first driving gear, 6, second driving gear, the 7, the 3rd driving gear, 8, first follower gear, 9, axle sleeve, 10, second follower gear, the 11, the 3rd follower gear, 12, minute hand, 13, hour hands, 14, knob, 15, display window.
(5) embodiment
Explain below doing with the clock and watch apparatus for demonstrating below in conjunction with 1,2 pairs of teaching of the present utility model of accompanying drawing.
As accompanying drawing 1, shown in 2, teaching of the present utility model clock and watch apparatus for demonstrating, its structure comprises housing 1 and the main drive shaft 2 that is arranged on the housing 1, first driven shaft 3 and second driven shaft 4, the main drive shaft 2 and first driven shaft 3, second driven shaft 4 be arranged in parallel, be respectively arranged with first driving gear 5 on the main drive shaft 2, second driving gear 6, the 3rd driving gear 7, first driven shaft 3 is provided with first follower gear 8 and axle sleeve 9, axle sleeve 9 is provided with second follower gear 10, second driven shaft 4 is provided with the 3rd follower gear 11, first driving gear 5 and first follower gear 8 are with the ratio engaged transmission of 1:1, second driving gear 6 and second follower gear 10 are with the ratio engaged transmission of 1:12, the 3rd driving gear 7 and the 3rd follower gear 11 are with the ratio engaged transmission of 1:1, first driven shaft 3 that stretches out housing 1 is provided with minute hand 12, the axle sleeve 9 that stretches out housing 1 is provided with hour hands 13, stretch out in housing 1 lower end of main drive shaft 2, it is provided with knob 14, the 3rd driving gear 7 is provided with the minute hand index dial, the 3rd follower gear 11 is provided with the hour hands index dial, and the housing 1 of minute hand index dial and hour hands index dial junction is provided with display window 15.
Teaching of the present utility model is simple and convenient with its processing and fabricating of clock and watch apparatus for demonstrating, and processing and fabricating gets final product shown in the by specification accompanying drawing.
Claims (1)
1, teaching clock and watch apparatus for demonstrating, comprise housing (1) and be arranged on main drive shaft (2) and first driven shaft (3) on the housing (1), second driven shaft (4), it is characterized in that, main drive shaft (2) and first driven shaft (3), second driven shaft (4) be arranged in parallel, main drive shaft (2) in the housing (1) is provided with first driving gear (5), second driving gear (6), the 3rd driving gear (7), first driven shaft (3) in the housing (1) is provided with first follower gear (8) and axle sleeve (9), axle sleeve (9) is provided with second follower gear (10), second driven shaft (4) in the housing (1) is provided with the 3rd follower gear (11), first driving gear (5) and the ratio engaged transmission of first follower gear (8) with 1:1, second driving gear (6) and the ratio engaged transmission of second follower gear (10) with 1:12, the 3rd driving gear (7) and the ratio engaged transmission of the 3rd follower gear (11) with 1:1, first driven shaft (3) that stretches out housing (1) is provided with minute hand (12), the axle sleeve (9) that stretches out housing (1) is provided with hour hands (13), stretch out in housing (1) lower end of main drive shaft (2), it is provided with knob (14), the 3rd driving gear (7) is provided with the minute hand index dial, the 3rd follower gear (11) is provided with the hour hands index dial, and the housing (1) of minute hand index dial and hour hands index dial junction is provided with display window (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820187703XU CN201242828Y (en) | 2008-08-15 | 2008-08-15 | Clock demonstration device for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820187703XU CN201242828Y (en) | 2008-08-15 | 2008-08-15 | Clock demonstration device for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201242828Y true CN201242828Y (en) | 2009-05-20 |
Family
ID=40716118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820187703XU Expired - Fee Related CN201242828Y (en) | 2008-08-15 | 2008-08-15 | Clock demonstration device for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201242828Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104575233A (en) * | 2014-12-29 | 2015-04-29 | 玉林师范学院 | Composite gear transmission time instrument teaching aid |
-
2008
- 2008-08-15 CN CNU200820187703XU patent/CN201242828Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104575233A (en) * | 2014-12-29 | 2015-04-29 | 玉林师范学院 | Composite gear transmission time instrument teaching aid |
| CN104575233B (en) * | 2014-12-29 | 2017-07-18 | 玉林师范学院 | A kind of train Composite Transmission time instrument teaching aid |
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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: 20090520 Termination date: 20090915 |