Guytograph model for measuring astronomical calendar method
By introducing a rotating axis, vertically intersecting tracks, and an adjustable light source, the problem of the gnomon model's inability to simulate sunlight was solved, resulting in more accurate shadow measurement and improved teaching effectiveness.
Patent Information
- Application Number
- CN202423251970.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Existing gnomon models cannot fully simulate sunlight exposure; their fixed angles prevent a clear demonstration of gnomon usage, resulting in poor teaching effectiveness.
By introducing a rotating axis and vertically intersecting first and second tracks, combined with an adjustable light source and a push plate, slide, and slider mechanism on the connecting seat, the position and angle of the gnomon can be adjusted to simulate the Earth's rotation and revolution.
It enables more accurate measurement of shadows, adapts to different geographical regions and astronomical phenomena, enhances the applicability and ease of operation of the equipment, and improves teaching effectiveness.
Smart Images
Figure CN223679751U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to teaching aid technical field, concretely relates to a gnomon sundial model for measuring astronomical calendar. BACKGROUND
[0002] Gnomon sundial is an ancient astronomical instrument for measurement using the sun shadow, which consists of two components: "gnomon" and "sundial". "Gnomon" is a flat ruler used to measure the shadow length, while "sundial" is a vertical pole or column used to observe the sun shadow. Gnomon sundial has a wide range of applications, mainly used for determining seasons, dividing four seasons and calculating calendar. By observing the length change of sundial shadow at noon, the change of solstice can be determined, and then the length of the tropical year can be calculated. For example, the sundial shadow is the longest at winter solstice and the shortest at summer solstice. This change helps ancient people to develop the 24 solar terms.
[0003] However, the traditional gnomon sundial model cannot fully simulate the sunlight, and teachers need to demonstrate teaching through oral or manual simulation. Moreover, the angle of the existing gnomon sundial teaching aid is fixed, which cannot fully and intuitively display the gnomon sundial. UTILITY MODEL CONTENT
[0004] Therefore, the utility model provides a gnomon sundial model for measuring astronomical calendar. By introducing a rotating shaft and vertically staggered first and second tracks, the earth's rotation and revolution can be more accurately simulated. This allows users to make more accurate sun shadow measurements at different times and locations, thus better determining time, seasonal changes and astronomical calendar. The adjustable light source design (first and second light sources) allows measurements under different lighting conditions or for simulating specific astronomical conditions, increasing the device's application range. The push plate on the connecting seat and the sliding slot and sliding block mechanism in the fixed seat provide horizontal and angular adjustment functions, allowing users to easily adjust the gnomon's position and angle, ensuring optimal measurement results.
[0005] The utility model provides a kind of gnomon table model for measuring astronomical calendar, including gnomon, the cross section of gnomon is rectangle, the top of gnomon is equipped with table, the cross section of table is rectangle, table is fixedly connected with gnomon, the hole is symmetrically opened in the both sides of gnomon, the hole is circular hole, rotating shaft is symmetrically arranged in the both sides of gnomon in the circular hole of gnomon, the cross section of rotating shaft is circular, rotating shaft is rotatably connected with gnomon by the circular hole of gnomon, first track and second track are sequentially matched and installed on the outside of gnomon on rotating shaft, first track and second track are equipped with the perforation corresponding with rotating shaft, the perforation is circular perforation, first track and second track are rotatably connected with gnomon by circular perforation and rotating shaft, first track is close to gnomon, and first track and second track are perpendicular to each other, the both sides of gnomon are curved surface, and there is a certain space between gnomon and first track, there is a certain space between first track and second track, first light source is matched and installed on first track, first light source is slidably connected with first track, second light source is matched and installed on second track, and second light source is slidably connected with second track.
[0006] First track and second track are curved surface, and the curvature of second track is greater than the curvature of first track, and the curvature of first track and second track are curved surface design, and the curvature of second track is greater than the curvature of first track, so that the device can be adjusted according to different latitude and observation conditions.
[0007] The bottom of gnomon is equipped with connecting seat, the cross section of connecting seat is circular, connecting seat is fixedly connected with gnomon, push plate is symmetrically arranged on the side surface of gnomon on connecting seat, the cross section of push plate is rectangle, and push plate is fixedly connected with connecting seat.
[0008] The bottom of connecting seat is equipped with fixing seat, the cross section of fixing seat is circular, sliding slot is arranged on fixing seat, and the sliding slot is circular annular sliding slot, the bottom of connecting seat is equipped with sliding block matched with the sliding slot of fixing seat, the sliding block is circular annular sliding block corresponding with the circular annular sliding slot on fixing seat, and connecting seat is rotatably connected with fixing seat by sliding block.
[0009] First connecting piece is arranged between first light source and first track, the cross section of first connecting piece is rectangle, first connecting piece is slidably connected with first track, first light source is slidably connected with first track by first connecting piece, second connecting piece is arranged between second light source and second track, the cross section of second connecting piece is rectangle, second connecting piece is slidably connected with second track, and second light source is slidably connected with second track by second connecting piece.
[0010] Compared with the prior art, the present application has at least one of the following beneficial technical effects:
[0011] 1. By introducing a rotating shaft and vertically staggered first and second tracks, the rotation and revolution of the Earth can be more accurately simulated. This allows users to make more accurate measurements of the sun's shadow at different times and locations, thereby better determining time, seasonal changes, and astronomical calendars.
[0012] 2. Both the first and second tracks are designed as curved surfaces, and the curvature of the second track is greater than that of the first track. Such a design allows the device to adjust its shape according to different latitudes and observation conditions, to adapt to a wider geographical area and changes in astronomical phenomena. The design of adjustable light sources (first and second light sources) allows measurements to be made under different lighting conditions or to simulate specific astronomical conditions, increasing the range of applications of the device.
[0013] 3. The push plate on the connecting seat and the sliding groove and sliding block mechanism in the fixed seat provide horizontal and angular adjustment functions, allowing users to easily adjust the position and angle of the gnomon to ensure optimal measurement results. The design of the connecting piece between the light source and the track further enhances the adjustability of the light source position, improving the operational convenience of the device. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 is a structural schematic view of the gnomon table model for measuring astronomical calendars according to the present application;
[0015] Figure 2 is a structural schematic view of the top view according to the present application;
[0016] Figure 3 is a structural schematic view of the side view according to the present application.
[0017] BRIEF DESCRIPTION OF DRAWINGS
[0018] 100, gnomon; 101, table; 102, rotating shaft; 103, first track; 104, second track; 105, first light source; 106, second light source;
[0019] 200, connecting seat; 201, push plate; 202, fixed seat; 203, first connecting piece; 204, second connecting piece; DETAILED DESCRIPTION
[0020] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the following will combine the drawings of the embodiments of the present application to make a detailed description. Figures 1-3 The technical scheme of the embodiments of the present application is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the present application, not all. Based on the described embodiments of the present application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the present application.
[0021] As Figures 1-3 : The embodiment provides a gnomon model for measuring astronomical calendar, including a gnomon 100, the cross section of the gnomon 100 is rectangular, the gnomon 100 is mainly used for measuring the length of the shadow, the top of the gnomon 100 is provided with a table 101, the cross section of the table 101 is rectangular, the table 101 is fixedly connected with the gnomon 100, the table 101 is used for observing the sun shadow, the both sides of the gnomon 100 are symmetrically provided with holes, the holes are circular holes, rotating shafts 102 are symmetrically arranged on the both sides of the gnomon 100 in the circular holes of the gnomon 100, the cross section of the rotating shaft 102 is circular, the rotating shaft 102 is rotationally connected with the gnomon 100 through the circular hole of the gnomon 100, a first track 103 and a second track 104 are sequentially and matchingly arranged on the rotating shaft 102 outside the gnomon 100, the first track 103 and the second track 104 are both provided with perforations corresponding to the rotating shaft 102, the perforations are circular, the first track 103 and the second track 104 are rotationally connected with the gnomon 100 through the circular perforations and the rotating shaft 102, the first track 103 is close to the gnomon 100, and the first track 103 and the second track 104 are perpendicular to each other, the both sides of the gnomon 100 are curved surfaces, the first track 103 and the second track 104 can move outside the gnomon 100 and the table 101 through the rotating shaft 102, and the first track 103 and the second track 104, which are perpendicular to each other, can more conveniently display the sunlight and the length of the shadow at different angles, and a certain space is reserved between the gnomon 100 and the first track 103, a certain space is reserved between the first track 103 and the second track 104, a first light source 105 is matchingly and sleeved on the first track 103, the first light source 105 is slidably connected with the first track 103, a second light source 106 is matchingly and sleeved on the second track 104, the second light source 106 is slidably connected with the second track 104, the first light source 105 and the second light source 106 are mainly used for simulating sunlight, and the orbits of the sun are simulated through the first track 103 and the second track 104, so that the teaching effect is achieved.
[0022] The utility model can more accurately simulate the rotation and revolution of the earth through the introduction of the rotating shaft 102 and the first track 103 and the second track 104 which are perpendicular to each other. This allows users to make more accurate shadow measurements at different times and locations, thereby better determining time, seasonal changes and astronomical calendar. The design of adjustable light sources (first light source 105 and second light source 106) allows measurements to be made under different lighting conditions or to simulate specific astronomical conditions, increasing the range of applications of the device. The sliding groove and sliding block mechanism in the push plate 201 and the fixed seat 202 on the connecting seat 200 provide horizontal and angular adjustment functions, allowing users to easily adjust the position and angle of the gnomon 100 to ensure optimal measurement results.
[0023] As Figure 3As shown, the first track 103 and the second track 104 are both curved surfaces, and the curvature of the second track 104 is greater than that of the first track 103. The first track 103 and the second track 104 are both curved surface designs, and the curvature of the second track 104 is greater than that of the first track 103. This allows the device to adjust its shape according to different latitudes and observation conditions.
[0024] As shown in the Figures 2-3 As shown, the bottom of the gnomon 100 is provided with a connecting seat 200, the cross section of the connecting seat 200 is circular, the connecting seat 200 is fixedly connected with the gnomon 100, and the connecting seat 200 is symmetrically provided with a push plate 201 on the side of the gnomon 100. The cross section of the push plate 201 is rectangular, the push plate 201 is fixedly connected with the connecting seat 200, and the push plate 201 can make the connecting seat 200 move better.
[0025] As shown in the Figure 1 As shown, the bottom of the connecting seat 200 is provided with a fixing seat 202, the cross section of the fixing seat 202 is circular, and the fixing seat 202 is provided with a sliding groove. The sliding groove is a circular ring-shaped sliding groove, the bottom of the connecting seat 200 is provided with a sliding block matched with the sliding groove of the fixing seat 202, the sliding block is a circular ring-shaped sliding block corresponding to the circular ring-shaped sliding groove on the fixing seat 202, and the connecting seat 200 is rotatably connected with the fixing seat 202 through the sliding block. The connecting seat 200 can be rotated through the sliding block, which is convenient for multi-time display in the teaching process and is beneficial to the students to observe the working principle of the gnomon 100 table 101 more intuitively.
[0026] As shown in the Figures 1-3 As shown, a first connecting piece 203 is arranged between the first light source 105 and the first track 103, the cross section of the first connecting piece 203 is rectangular, the first connecting piece 203 is slidably connected with the first track 103, the first light source 105 is slidably connected with the first track 103 through the first connecting piece 203, a second connecting piece 204 is arranged between the second light source 106 and the second track 104, the cross section of the second connecting piece 204 is rectangular, the second connecting piece 204 is slidably connected with the second track 104, and the second light source 106 is slidably connected with the second track 104 through the second connecting piece 204. The first connecting piece 203 and the second connecting piece 204 realize the orbit of the simulated sunlight by cooperating with the first light source 105 and the second light source 106, and different degrees of sunlight are realized by adjusting the angle.
[0027] Working principle: in the use process, the movement of the light source is simulated by moving the first connecting piece or the second connecting piece, the shadow refraction of the table on the gnomon is observed, different angles are adjusted for teaching observation, and the teaching aid can be rotated by the push plate during use to enable students to observe more intuitively.
[0028] In addition, it needs to be explained that, in the description of the present application, unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0029] The above is the preferred embodiment of the present application, it should be pointed out that, for those skilled in the art, without departing from the principles described in the present application, a number of improvements and refinements can be made, these improvements and refinements should also be considered as the protection scope of the present application.
Claims
1. A gnomon model for measuring astronomical calendars, characterized in that: Includes a gui (100), on the top of which is mounted a dial (101). Holes are symmetrically formed on both sides of the gui (100). Rotating shafts (102) are symmetrically arranged on both sides of the gui (100) through these holes. A first track (103) and a second track (104) are sequentially mounted on the rotating shafts (102) on the outer side of the gui (100). Both the first track (103) and the second track (104) have through holes corresponding to the rotating shafts (102). The first track (103) is close to the gui (100), and the first track (103) and the second track (104) are perpendicular to each other. Both sides of the gui (100) are curved surfaces, and a certain space is reserved between the gui (100) and the first track (103). A certain space is reserved between the first track (103) and the second track (104). A first light source (105) is matched and fitted on the first track (103), and a second light source (106) is matched and fitted on the second track (104).
2. The gnomon model for measuring astronomical calendars as described in claim 1, characterized in that: Both the first track (103) and the second track (104) are curved surfaces, and the curvature of the second track (104) is greater than that of the first track (103).
3. A gnomon model for measuring astronomical calendars as described in claim 1, characterized in that: The bottom of the gui (100) is provided with a connecting seat (200), and the connecting seat (200) is provided with push plates (201) symmetrically arranged on the side of the gui (100).
4. A gnomon model for measuring astronomical calendars as described in claim 3, characterized in that: The bottom of the connecting seat (200) is provided with a fixed seat (202), the fixed seat (202) is provided with a sliding groove, and the bottom of the connecting seat (200) is provided with a slider that matches the sliding groove of the fixed seat (202).
5. A gnomon model for measuring astronomical calendars as described in claim 1, characterized in that: A first connector (203) is provided between the first light source (105) and the first track (103), and a second connector (204) is provided between the second light source (106) and the second track (104).