Compass type solar calendar

Abstract

The invention discloses a solar calendar capable of looking up multiple years. The solar calendar is manufactured by overlapping a base plate and four rotary plates (paper or other more durable flaky materials). The solar calendar is characterized in that the solar calendar with the span of 28 years can be looked up by rotating the turntable. By taking 28 years as a service cycle, the solar calendar of the next 28-year cycle can be looked up by replacing one turntable written with the 28 years, and the service cycle of the calendar can be continuously prolonged backwards by continuously replacing the turntable written with the years. By adopting the solar calendar, resource waste caused by discarding the solar calendar every year can be avoided. In addition, the method is also suitable for being used as a handmade teaching material for pupils, the operational ability and the drawing art creativity of the pupils can be cultivated, and the interest of the pupils in learning and memorizing solar calendar methods can be improved.

Description

Technical Field

[0001] The invention relates to a solar calendar, which can check solar calendar dates in 28 years with less materials, thereby extending the use cycle of the calendar and achieving the effect of resource saving. Background Art

[0002] At present, the usage cycle of ordinary Gregorian calendars is generally one or two years. A calendar can only be used to check dates for one or two years at most. People inevitably discard expired calendars every year. Although some calendars are as simple as just a piece of paper, the accumulation of discarded calendars may amount to hundreds of millions of pieces of paper every year, which is a considerable waste of resources. Summary of the invention

[0003] Problem to be solved In order to make the calendar reusable every year, the present invention provides a design of a solar calendar, so that a solar calendar uses less material and can be used continuously for 28 years or even longer, thereby achieving the purpose of saving resources.

[0004] Technical Solution The technical solution provided by the present invention is to arrange "1st" to "31st" in a circle on a chassis, with a rotating shaft in the center of the circle; "January" to "December" are marked at specific positions in the circle, forming concentric small rings, of which "January" and "February" have two; and the word "leap year" is marked in a corner outside the circle of "1st" to "31st". There are 4 turntables in the middle of the chassis on the same rotating shaft, and 28 years and five weeks are printed on the third turntable. The 4 turntables can cover different years and months by rotating, and only the year and month that need to be viewed are displayed. When the turntable is turned to the year and month that need to be viewed, the date on the chassis and the week on the third turntable will correspond.

[0005] The beneficial effect of the present invention is that with less materials, the Gregorian calendar dates with an interval of 28 years can be consulted, which greatly prolongs the use cycle of the Gregorian calendar, improves the reuse rate of resources, and achieves the purpose of saving resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] The present invention is further described below in conjunction with the accompanying drawings.

[0007] Figure 1 It is the chassis of the present invention.

[0008] Figure 2 It is the first layer of the turntable of the present invention.

[0009] Figure 3 It is the second layer turntable of the present invention.

[0010] Figure 4 It is the third layer turntable of the present invention.

[0011] Figure 5 It is the fourth turntable of the present invention.

[0012] Figure 6 This is the position of the first-level turntable in normal years.

[0013] Figure 7 This is the position of the first turntable during a leap year.

[0014] Figure 8 This is the position of the second turntable during a long month in an ordinary year (a month has 31 days).

[0015] Fig. 9 This is the position of the second turntable during a leap year (a month has 31 days).

[0016] Fig.10 This is the position of the second turntable during a short month (a month has 30 days).

[0017] Fig.11 This is the position of the second turntable in February of a leap year.

[0018] Fig.12 This is the position of the second-level turntable in February of an ordinary year.

[0019] Fig.13 This is the location of the third-floor turntable in January 2025.

[0020] Fig.14 This is the location of the fourth-floor turntable in January 2025. DETAILED DESCRIPTION

[0021] exist Figure 1 There is a rotating axis in the center of the chassis. The numbers "1" to "31" arranged clockwise around the axis represent the date, and the numbers "1" to "12" arranged counterclockwise represent the month. The two "January" and "February" represent January and February in leap years and ordinary years respectively. The hole between "January" and "February" is used to limit the rotation angle range of the first layer of the turntable. There are 4 arc-shaped holes around the axis to limit the rotation angle range of the second layer of the turntable.

[0022] exist Figure 2 There is a short arc hole on the first turntable. The rotation axis of the turntable is concentric with the axis of the chassis. The short arc hole on the turntable overlaps with the hole between "January" and "February" on the chassis. Two fixing plates are flipped up from the hole on the chassis to press the first turntable, so that the first turntable can only rotate within the angle range limited by this hole. Figure 6 In the , rotate the first layer of the turntable to block the word "leap year" on the bottom plate, the "January" and "February" of the common year on the bottom plate are revealed, and the "January" and "February" of the leap year are blocked by the first layer of the turntable. Figure 7 In the process, when the first layer of the turntable is rotated to reveal the word "leap year" on the bottom plate, the "January" and "February" of the common year on the bottom plate are blocked by the first layer of the turntable, and the "January" and "February" of the leap year are revealed.

[0023] exist Figure 3 In the case of a turntable, the second layer has 4 legs and 7 holes, and the rotation axis of the turntable is concentric with the axis of the chassis. Figure 8 In the middle, rotate the second turntable to reveal all the dates from "1" to "31". The four legs of the turntable are inserted into the four arc-shaped holes on the bottom plate, so that the second turntable can only rotate within the angle range limited by these holes. At this time, all the months of the big months on the bottom plate are exposed. When the first turntable is turned to block the words "leap year" on the bottom plate, the "January" of the common year on the bottom plate is exposed, and the "January" of the leap year is blocked by the turntable. Fig. 9 In the process, the second turntable does not move, and the first turntable is rotated to reveal the word "leap year" on the bottom plate. The "January" of a common year on the bottom plate is blocked by the turntable, and the "January" of a leap year is revealed.

[0024] exist Fig.10 In the middle, turn the second layer of the turntable to block the "31" on the bottom plate, revealing the dates "1" to "30". At this time, all the months of the small months on the bottom plate are revealed.

[0025] In Figure 11, when the second turntable is rotated, the dates "30" and "31" on the bottom plate are blocked, revealing the dates "1" to "29". When the first turntable is rotated to reveal the word "leap year" on the bottom plate, the "February" of the leap year on the bottom plate is revealed, and the "February" of the ordinary year is blocked by the turntable.

[0026] In Figure 12, when the second turntable is rotated to block the dates "29" to "31" on the bottom plate, the dates "1" to "28" are exposed. When the first turntable is rotated to block the word "leap year" on the bottom plate, the "February" of a common year on the bottom plate is exposed, while the "February" of a leap year is blocked by the turntable.

[0027] In Figure 4, there are seven arc-shaped holes on the third-layer turntable. The rotation axis of the turntable is concentric with the axis of the bottom plate. The outer circle of the arc-shaped holes is arranged clockwise for five weeks, and the inner circle of the holes is arranged clockwise for 28 years, starting with a leap year. Every four years form a group, divided into seven groups of years, aligned with the seven holes. In Figure 13, when the first layer of the turntable is rotated and the words "leap year" are displayed on the bottom plate, the second layer of the turntable is rotated to reveal all the dates from "1" to "31". When the third layer of the turntable is rotated to align "2025" on the third layer of the turntable with "January" on the bottom plate, each date on the end of the month will be aligned with the week on the third layer of the turntable. At the same time, it can be seen that October 2031, August 2035, July 2037, May 2041, and March 2045 use the same calendar.

[0028] In Figure 5, there are six legs and a slot on the fourth-layer turntable, and the rotation axis of the turntable is concentric with the axis of the bottom plate. In Figure 14, when the fourth-layer turntable is rotated to expose the year to be checked on the third-layer turntable, the six legs of the fourth-layer turntable are inserted into the arc-shaped holes on the third-layer turntable to increase the friction between the third and fourth-layer turntables, so that the third and fourth-layer turntables form a whole that can rotate synchronously. Rotate the first-layer turntable to the year to be checked corresponding to the common year or leap year, rotate the second-layer turntable to the total number of days in the month to be checked, and then rotate the third and fourth-layer turntables at the same time to expose the month to be checked on the bottom plate. When all the dates on the end of the month are aligned with the week on the third-layer turntable. This method can be used to check all the 28-year solar calendar dates printed on the third-layer turntable.

[0029] The principle of the present invention is to use five weeks (35 days) to cover any month (31 days at most), so the calendar of the present invention is divided into 35 grids to form a complete cycle, and each month only occupies 28 to 31 grids of the 35 grids, representing the number of days in each month. When the number of days in a month is 31 days, that is, 4 weeks and 3 days, the week corresponding to the 1st of the month after the month is 3 days later than the week corresponding to the 1st of the month. Therefore, when the date on the chassis does not move, the week on the third-layer turntable rotates three grids counterclockwise to correspond to the calendar of the next month. This method can be used to obtain the positional relationship of the months on the chassis of the present invention. Similarly, the number of days in an ordinary year is 365 days, that is, 52 weeks and 1 day, so the week corresponding to January 1st of the next year is 1 day later than the week corresponding to January 1st of the current year. Therefore, when the date on the chassis does not move, the week on the third-layer turntable rotates one grid counterclockwise to correspond to the calendar of the same month of the next year. This method can be used to obtain the positional relationship of the years on the third-layer turntable of the present invention.

[0030] By replacing the third-layer rotating disc of the present invention, the solar calendar dates of more years can be checked. It is also possible to stack multiple third-layer rotating discs printed with different years from bottom to top according to the years from far to near into a whole, and when in use, all the third-layer rotating discs rotate at the same time. When the year on the top layer expires, the year on the top layer is torn off, and the subsequent years can be exposed, so that the calendar can be used continuously.

Claims

1. A solar calendar that can be used to check multiple years, made by stacking four rotating discs on a base (can be made of paper or other more durable thin sheet materials). By rotating the dial, you can check the Gregorian calendar spanning 28 years. With 28 years as a usage cycle, by replacing one of the dials with the year written on it, you can check the Gregorian calendar of the next 28-year cycle. By continuing to replace the dial with the year written on it, you can continuously extend the calendar's usage cycle.

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