A model for calculating time and azimuth angle using sunshine angle

Abstract

The invention discloses a model for calculating time and azimuth angle by sunshine angle, including a tray, an azimuth tray is arranged on the top of the tray, a direction mark is arranged vertically on the azimuth tray, a meridian ring and an equatorial ring are arranged on the direction mark in sequence; a rotating groove is arranged at the center of the tray groove; a rotating protrusion is arranged at the center of the bottom of the azimuth tray, and a mounting slot is arranged at the center of the top of the azimuth tray; a mounting protrusion is arranged at the bottom of the direction mark, an arc-shaped ring groove is arranged at the top of the direction mark, and the bottom of the meridian ring is embedded in the ring groove; the equatorial ring is fixedly connected to the meridian ring; an angle ruler is fixedly arranged on the inner side of the meridian ring, the angle ruler is shuttle-shaped, an angle slot is arranged in the middle of the angle ruler, and an angle mark is arranged in the angle slot. Compared with the prior art, the advantages of the invention are: simple structure, easy to use, can calculate the local time, and can use simple operation to determine the azimuth, multiple functions, and good market promotion value.

Description

Technical Field

[0001] The invention relates to the technical field of timekeeping and azimuth calculation, and in particular to a model for calculating time and azimuth angle using sunshine angle. Background Art

[0002] In ancient times, gnomons and sundials were tools that used the direction and length of the projection produced by sunlight to measure the approximate time. Due to the limitation of fixed angle, common sundials can only be used to view the local time at 40 degrees north latitude, and can only measure time, with a single function. Although some modern sundial-like designs that can change their form can solve the above problems, they are too complex and large in structure, difficult to operate and carry, and inconvenient to learn and use. Therefore, a model that uses the angle of sunlight to calculate time and azimuth angles needs to be studied urgently. Summary of the invention

[0003] The purpose of the present invention is to solve the problems mentioned in the background technology and provide a model for calculating time and azimuth angle using sunshine angle.

[0004] In order to solve the above technical problems, the technical solution provided by the present invention is as follows: a model for calculating time and azimuth angle using sunshine angle, comprising a tray, an azimuth plate is arranged on the top of the tray, a direction mark is vertically arranged on the azimuth plate, and a meridian ring and an equatorial ring are arranged on the direction mark in sequence;

[0005] A circular tray groove is provided on the top of the tray, and a rotating groove is provided at the center of the tray groove;

[0006] The azimuth disk is circular, a rotating protrusion matched with the rotating groove is provided at the bottom center of the azimuth disk, a mounting slot is provided at the top center of the azimuth disk, and azimuth angle scales are marked on the azimuth disk;

[0007] The bottom of the direction indicator is provided with a mounting protrusion, the top of the direction indicator is provided with an arc-shaped annular groove, and the bottom of the meridian ring is embedded in the annular groove.

[0008] A triangular calibration arrow is provided on the top of the direction indicator;

[0009] The equatorial ring is fixedly connected to the meridian ring, the plane where the equatorial ring is located is perpendicular to the plane where the meridian ring is located, the equatorial ring is marked with a time scale, and the meridian ring is provided with a latitude scale;

[0010] An angle ruler is fixedly arranged on the inner side of the meridian ring. The angle ruler is shuttle-shaped and has a month scale. An angle slot is arranged in the middle of the angle ruler. An angle mark is arranged in the angle slot and the angle mark slides in the angle slot.

[0011] The plate support is provided with a first horizontal ruler and a second horizontal ruler, and the first horizontal ruler and the second horizontal ruler are located outside the azimuth plate and are arranged perpendicular to each other.

[0012] As a preferred solution, the bottom surface of the tray is square.

[0013] As a preferred solution, the diameter of the disc tray groove is larger than the diameter of the disc tray.

[0014] As a preferred solution, the diameter of the rotating groove is larger than the diameter of the rotating protrusion.

[0015] As a preferred solution, the size of the mounting slot is larger than the size of the mounting protrusion.

[0016] Compared with the prior art, the invention has the advantages of simple structure, easy use, being able to calculate the local time and determine the direction by simple operation, having multiple functions and having good market promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 It is a side view of the tray of the present invention.

[0019] Figure 3 It is a side view of the azimuth plate of the present invention.

[0020] Figure 4 It is a structural schematic diagram of the direction indicator of the present invention.

[0021] Figure 5 It is a schematic structural diagram of the meridian ring of the present invention.

[0022] Figure 6 It is a schematic structural diagram of the equatorial ring of the present invention.

[0023] Figure 7 It is a structural schematic diagram of the angle ruler of the present invention.

[0024] Figure 8 It is a structural schematic diagram of the angle mark of the present invention.

[0025] As shown in the figure: 1. Pan support, 2. Azimuth disk, 3. Equatorial ring, 4. Meridian ring, 5. Angle ruler, 6. Angle mark, 7. Direction mark, 8. First horizontal ruler, 9. Second horizontal ruler, 101. Pan support groove, 102. Rotation groove, 201. Rotation protrusion, 202. Mounting slot, 203. Angle scale, 301. Time scale, 401. Latitude scale, 501. Month scale, 502. Angle slot, 701. Mounting protrusion, 702. Ring groove, 703. Triangle calibration arrow. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "back" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the resulting method or component must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second" and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or a point connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In conjunction with the accompanying drawings, a model for calculating time and azimuth angle using sunshine angle comprises a tray 1, an azimuth plate 2 is arranged on the top of the tray 1, a direction mark 7 is vertically arranged on the azimuth plate 2, and a meridian ring 4 and an equatorial ring 3 are arranged on the direction mark 7 in sequence;

[0030] A circular tray groove 101 is provided on the top of the tray 1, and a rotating groove 102 is provided at the center of the tray groove 101;

[0031] The azimuth disk 2 is circular, and a rotating protrusion 201 used in conjunction with the rotating groove 102 is provided at the bottom center of the azimuth disk 2, and a mounting slot 202 is provided at the top center of the azimuth disk 2. An azimuth angle scale 203 is marked on the azimuth disk 2;

[0032] The bottom of the direction indicator 7 is provided with a mounting protrusion 701, the top of the direction indicator 7 is provided with an arc-shaped annular groove 702, the bottom of the meridian ring 4 is embedded in the annular groove 702, and the top of the direction indicator is provided with a triangular calibration arrow 703;

[0033] The equatorial ring 3 is fixedly connected to the meridian ring 4, the plane where the equatorial ring 3 is located is perpendicular to the plane where the meridian ring 4 is located, the equatorial ring 3 is marked with a time scale 301, and the meridian ring 4 is provided with a latitude scale 401;

[0034] An angle ruler 5 is fixedly arranged inside the meridian ring 4. The angle ruler 5 is shuttle-shaped and has a month scale 501. An angle slot 502 is arranged in the middle of the angle ruler 5. An angle mark 6 is arranged in the angle slot 502. The angle mark 6 slides in the angle slot 502.

[0035] The disk tray 1 is provided with a first horizontal ruler 8 and a second horizontal ruler 9, which are located outside the azimuth disk 2 and are arranged perpendicular to each other.

[0036] The bottom surface of the tray 1 is square.

[0037] The diameter of the disc tray slot 101 is larger than the diameter of the disc tray 1 .

[0038] The diameter of the rotating groove 102 is greater than the diameter of the rotating protrusion 201 .

[0039] The size of the mounting slot 202 is larger than the size of the mounting protrusion 701 .

[0040] During the specific implementation of the present invention, the tray is leveled with the object, and the first horizontal ruler and the second horizontal ruler are adjusted to query the local latitude, the meridian ring is rotated so that the corresponding triangle calibration arrow is at a corresponding angle, the 12 o'clock scale of the equatorial ring is perpendicular to the meridian ring latitude of 0 degrees, the angle mark is adjusted to the current date, the date scale of the angle table is calculated, and is calculated based on the corresponding date of the direct displacement cycle of the sun between the Tropic of Cancer and the Tropic of Capricorn in one year, the angle scale is rotated to face the sun, the direction mark is rotated at the center of the tray, so that the sunlight beam is projected onto the midline of the rear part of the equatorial ring through the central hole of the angle mark, the local geomagnetic declination difference is queried, the azimuth plate is rotated with the center as the reference, and the angle difference with the direction mark is adjusted according to the magnetic declination value. At this time, the corresponding time scale irradiated by the light beam is the local solar time, and the direction of the direction mark is the north-south direction of the earth's rotation axis, that is, the true north, and the direction corresponding to the azimuth plate is the azimuth angle of the magnetic field, that is, the magnetic north.

[0041] The working principle of the present invention is as follows: the two ends of the angle ruler are perpendicular to the 90° latitude position on the meridian ring; the 12 o'clock scale on the equatorial ring corresponds to the 0° latitude of the meridian ring and is perpendicular to the meridian ring; the time scale on the equatorial ring is 24 hours and 360° is evenly divided, that is, 6 am to 6 pm is a 180° circle; the illumination angle ruler, the scale is 12 months and the calendar is evenly divided into ±23.5°, a total of 47°, that is, the inner angle of the Tropic of Cancer and the Tropic of Capricorn, this angle is the angle between the inner diameter plane of the equatorial ring and the angle ruler.

[0042] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A model for calculating time and azimuth angle using sunshine angle, comprising a tray, characterized in that: The top of the tray is provided with an azimuth plate, on which a direction mark is vertically arranged, and on which a meridian ring and an equatorial ring are arranged in sequence; A circular tray groove is provided on the top of the tray, and a rotating groove is provided at the center of the tray groove; The azimuth disk is circular, a rotating protrusion matched with the rotating groove is provided at the bottom center of the azimuth disk, a mounting slot is provided at the top center of the azimuth disk, and azimuth angle scales are marked on the azimuth disk; The bottom of the direction indicator is provided with a mounting protrusion, the top of the direction indicator is provided with an arc-shaped annular groove, the bottom of the meridian ring is embedded in the annular groove, and the top of the direction indicator is provided with a triangular calibration arrow; The equatorial ring is fixedly connected to the meridian ring, the plane where the equatorial ring is located is perpendicular to the plane where the meridian ring is located, the equatorial ring is marked with a time scale, and the meridian ring is provided with a latitude scale; An angle ruler is fixedly arranged on the inner side of the meridian ring. The angle ruler is shuttle-shaped and has month scales. An angle slot is arranged in the middle of the angle ruler. An angle mark is arranged in the angle slot, and the angle mark slides in the angle slot. The plate support is provided with a first horizontal ruler and a second horizontal ruler, and the first horizontal ruler and the second horizontal ruler are located outside the azimuth plate and are arranged perpendicular to each other.

2. A model for calculating time and azimuth angle using sunshine angle according to claim 1, characterized in that: The bottom surface of the tray is square.

3. A model for calculating time and azimuth angle using sunshine angle according to claim 1, characterized in that: The disc tray groove has a diameter greater than a diameter of the disc tray.

4. A model for calculating time and azimuth angle using sunshine angle according to claim 1, characterized in that: The diameter of the rotation groove is greater than the diameter of the rotation protrusion.

5. The model for calculating time and azimuth angle using sunshine angle according to claim 1, characterized in that: The size of the mounting slot is larger than the size of the mounting protrusion.

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