CN2783378Y - 24 hours system clock - Google Patents
24 hours system clock Download PDFInfo
- Publication number
- CN2783378Y CN2783378Y CN 200520008787 CN200520008787U CN2783378Y CN 2783378 Y CN2783378 Y CN 2783378Y CN 200520008787 CN200520008787 CN 200520008787 CN 200520008787 U CN200520008787 U CN 200520008787U CN 2783378 Y CN2783378 Y CN 2783378Y
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- CN
- China
- Prior art keywords
- gear
- hand
- minute
- hour
- wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a 24 hours system clock which is realized by the improvement based on the prior art. The utility model is mainly composed of a casing, a surface disk and a second hand gear in the casing, a minute hand gear, an hour hand gear, a second/minute speed changing gear and a minute/ hour speed changing gear which are arranged in the casing, wherein the rotation angular speed of the second hand gear and the minute hand gear are unchanged. The utility model has the main point that the 24 hours system clock is provided with a differential gear which is composed of a big and a small gears which are fixed on the same central shaft, wherein the diameter of the big gear is twice as long as that the small gear, and is equal to the diameter of the hour hand gear; a small gear on the minute/ hour speed changing gear is engaged with a big gear on the differential gear, the small gear of which is engaged with the hour hand gear. Because the utility model is provided with the differential gear, the rotation angular speed of an hour hand is reduced by one half of that of the original hour hand and the hour hand takes 24 hours to rotate one circle. The 24 hours system clock directly indicates exact time values of 24 hours of day and night without calculating by plus 12, and is manufactured into clocks or watches of various shapes.
Description
Technical field the utility model belongs to the clock and watch technical field, relates to a kind of 24 hours schedulings.
Background technology is present, and international timetable comprises that clock and watch, wrist-watch etc. all adopt 12 hours systems.It mainly is made up of the second hand wheel in housing, the housing, minute gear, hour hand gear, second branch speed gear, divide time speed change gear and surface dish, second hand wheel is fixedly set on the second hand axle, minute gear is fixedly set on the minute hand tubular shaft and is sleeved on the second hand axle, and hour hand gear is fixedly set on the hour hands pin tubular shaft and is sleeved on the minute hand shaft; Pinion on second branch speed gear and the second hand wheel; Pinion wheel on second branch speed gear meshes with the outer rim of minute gear; The outer rim of divide time speed change gear and the pinion on the minute gear; Pinion wheel on the divide time speed change gear and hour hand gear engagement.The timetable of this structure has only 1～12 small time taking value on the dish of surface, can not directly show the concrete time at 24 hours one day one nights.To say the concrete time after having crossed 12 noon, add 12 in the indicated value on the dish of surface and just we can say out the concrete time.
The summary of the invention the purpose of this utility model provides a kind of 24 hours system clock and watch, to overcome the deficiencies in the prior art.
24 hours systems of the utility model clock and watch are to improve realization on the basis of existing technology, it mainly is made up of the second hand wheel in housing, the housing, minute gear, hour hand gear, second branch speed gear, divide time speed change gear and surface dish, second hand wheel is fixedly installed on the second hand axle, minute gear is fixedly installed on the minute hand tubular shaft and is sleeved on the second hand axle, and hour hand gear is fixedly installed on the hour hands pin tubular shaft and is sleeved on the minute hand shaft; Pinion on second branch speed gear and the second hand wheel; Pinion wheel on second branch speed gear meshes with the outer rim of minute gear; The outer rim of divide time speed change gear and the pinion on the minute gear; Its main points are that it also comprises a differential gear, and this differential gear is made of the large and small gear that is fixed on the same central shaft, wherein the diameter of gear wheel be 2 times of the pinion wheel diameter and and the equal diameters of hour hand gear; Pinion wheel on the divide time speed change gear and the engagement of the gear wheel on the differential gear, the pinion wheel on the differential gear and hour hand gear engagement.
The utility model is simple in structure, and is reasonable in design, makes the hour hands rotational angular be reduced to original half owing to be provided with differential gear, and the time that hour hands rotate a week was 24 hours.24 hours round the clock correct time value of this table direct representation need not add 12 to be calculated, and it can be made into the clock and watch or the wrist-watch of different shape.
Description of drawings Fig. 1 is the utility model structure schematic appearance;
Fig. 2 is the utility model second, branch and hour hand gear and drive mechanism principle schematic.
Embodiment with reference to the accompanying drawings, 24 hours systems of the utility model clock and watch, it mainly is made up of the second hand wheel 3 in housing 1, the housing 1, minute gear 4, hour hand gear 5, second branch speed gear 9, divide time speed change gear 10, differential gear and surface dish 2, second hand wheel 3 is fixedly installed on the second hand axle 8, minute gear 4 is fixedly installed on the minute hand tubular shaft 7 and is sleeved on the second hand axle 8, and hour hand gear 5 is fixedly installed on the hour hands pin tubular shaft 6 and is sleeved on the minute hand shaft 7; Pinion wheel 13 engagements on second branch speed gear 9 and the second hand wheel 3; The outer rim engagement of the pinion wheel 16 on second branch speed gear 9 and minute gear 4; Pinion wheel 14 engagements on the outer rim of divide time speed change gear 10 and the minute gear 4; Differential gear is made of the large and small gear 11,12 that is fixed on the same central shaft, wherein the diameter of gear wheel 11 be 2 times of pinion wheel 12 diameters and and the equal diameters of hour hand gear 5; Pinion wheel 15 on the divide time speed change gear 10 and 11 engagements of the gear wheel on the differential gear, pinion wheel 12 on the differential gear and hour hand gear 5 engagements.
Claims (1)
1, a kind of 24 hours system clock and watch, it mainly is made up of the second hand wheel in housing, the housing, minute gear, hour hand gear, second branch speed gear, divide time speed change gear and surface dish, second hand wheel is fixedly installed on the second hand axle, minute gear is fixedly installed on the minute hand tubular shaft and is sleeved on the second hand axle, and hour hand gear is fixedly installed on the hour hands pin tubular shaft and is sleeved on the minute hand shaft; Pinion on second branch speed gear and the second hand wheel; Pinion wheel on second branch speed gear meshes with the outer rim of minute gear; The outer rim of divide time speed change gear and the pinion on the minute gear; It is characterized in that it also comprises a differential gear, this differential gear is made of the large and small gear that is fixed on the same central shaft, wherein the diameter of gear wheel be 2 times of the pinion wheel diameter and and the equal diameters of hour hand gear; Pinion wheel on the divide time speed change gear and the engagement of the gear wheel on the differential gear, the pinion wheel on the differential gear and hour hand gear engagement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520008787 CN2783378Y (en) | 2005-03-23 | 2005-03-23 | 24 hours system clock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520008787 CN2783378Y (en) | 2005-03-23 | 2005-03-23 | 24 hours system clock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2783378Y true CN2783378Y (en) | 2006-05-24 |
Family
ID=36768361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520008787 Expired - Fee Related CN2783378Y (en) | 2005-03-23 | 2005-03-23 | 24 hours system clock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2783378Y (en) |
-
2005
- 2005-03-23 CN CN 200520008787 patent/CN2783378Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |