A measuring platform for observing changes in sunlight

Abstract

This utility model relates to the field of viewing platform technology and discloses a viewing platform for observing changes in sunlight, including a scale dial with graduated grooves. This utility model solves the problem of traditional viewing platforms having a fixed scale angle that cannot adapt to observations at different latitudes by designing a flipping mechanism. This allows operators to adjust the scale angle flexibly by activating a cylinder to drive a connecting rod and a movable block, causing the flipping plate to rotate around the hinge point with the hinge block, based on the latitude difference of the observation site. This method eliminates the need to replace the main body of the viewing platform or the supporting structure, making it convenient and highly accurate. It ensures the scale dial maintains the optimal observation angle that matches the local solar altitude angle, avoiding problems such as excessive shadow offset and large observation errors, thus improving the accuracy and reliability of sunlight observation data at different latitudes. Furthermore, a protractor provides real-time feedback on the rotation angle, assisting in precise angle control and ensuring standardized observation and data traceability.

Description

Technical Field

[0001] This utility model relates to the field of viewing platform technology, and more specifically, to a viewing platform for observing changes in the sun's shadow. Background Technology

[0002] Observing changes in shadows has significant applications in various fields, including astronomical research, geographical surveying, agricultural production planning, and the verification of the orientation of ancient buildings. By accurately observing the changes in the length and direction of shadows over time, fundamental data can be provided for related research. For example, in astronomical research, it can help analyze the periodic changes in the solar altitude angle; in agricultural production planning, shadow changes can determine the optimal orientation for crop planting to improve sunlight utilization; and in the verification of ancient buildings, shadow observations can reconstruct the astronomical and calendrical basis for the construction of ancient buildings.

[0003] Currently, observation platforms used for observing changes in shadow typically use a graduated dial as the core observation component. An observation pole is mounted on the dial, and the changes in shadow cast by the pole at different times are used to observe and record data. However, the graduated dials of existing observation platforms mostly use a fixed installation structure, and their overall orientation angle cannot be adjusted according to actual usage needs. In actual observation, due to significant differences in the solar altitude angle at different latitudes, a fixed-angle graduated dial is difficult to adapt to the observation environment at different latitudes. For example, in high-latitude regions, the solar altitude angle is lower. If the graduated dial maintains the same orientation angle as in low-latitude regions, the offset of the shadow cast by the pole on the dial will be too large. This not only easily exceeds the effective observation range of the graduated dial but also significantly increases the error of the observation data, seriously affecting the accuracy and reliability of the observation results. To address these issues, some observers attempt to adjust the dial angle by replacing the viewfinder with a different size or by placing a support under the dial. However, replacing the viewfinder increases observation costs, and different sizes of viewfinders have poor versatility. Placing a support is not only cumbersome and makes it difficult to achieve precise adjustment of the dial angle, but it also compromises the overall stability of the viewfinder, further affecting the accuracy of the observation data. Therefore, improvements are needed. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a viewing platform for observing changes in the sun's shadow, which has the advantage of adjusting the tilt angle of the viewing platform according to the usage requirements.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a viewing platform for observing changes in sunlight, comprising:

[0006] A graduated dial, wherein graduated grooves are provided on the graduated dial;

[0007] A flipping mechanism is provided at the bottom of the dial;

[0008] The flipping mechanism includes a flipping plate, the top of which is fixedly connected to the bottom of the dial. A hinge block is hinged to the left side of the flipping plate, and a fixed plate is fixedly installed at the bottom of the hinge block. A cylinder is fixedly installed at the top of the fixed plate, and a moving block is fixedly installed at the output end of the cylinder. A connecting rod is hinged to the moving block, and a movable block is hinged to the end of the connecting rod away from the moving block. The top of the movable block is fixedly connected to the bottom of the flipping plate, and the bottom of the movable block abuts against the top of the fixed plate.

[0009] As a preferred embodiment of this utility model, a support leg is fixedly installed at the bottom end of the fixing plate, and a reinforcing rod is fixedly sleeved inside the support leg.

[0010] As a preferred embodiment of this utility model, a fixing block is fixedly installed on the outer surface of the hinge block, and a protractor is fixedly installed inside the fixing block.

[0011] As a preferred technical solution of this utility model, an arc-shaped plate is fixedly installed at the bottom end of the flip plate, a motor is fixedly installed on the outer surface of the arc-shaped plate, a rotating shaft is fixedly sleeved at the output end of the motor, a driving bevel gear is fixedly sleeved on the outer surface of the rotating shaft, a driven bevel gear is meshed with the outer surface of the driving bevel gear, a round shaft is fixedly sleeved inside the driven bevel gear, and the outer surface of the round shaft is movably sleeved with the inside of the dial.

[0012] As a preferred embodiment of this utility model, a fixed tube is movably sleeved at the top of the outer surface of the circular shaft, a first vertical groove is formed inside the fixed tube, a screw is fixedly installed at the top of the circular shaft, a first telescopic rod is threaded onto the outer surface of the screw, the first telescopic rod is slidably connected to the inside of the fixed tube, a second vertical groove is formed inside the first telescopic rod, a first limiting ring is fixedly sleeved on the outer surface of the first telescopic rod, and the outer surface of the first limiting ring is slidably connected to the inside of the first vertical groove.

[0013] As a preferred technical solution of this utility model, a threaded sleeve is movably sleeved inside the first telescopic rod, and a third vertical groove is opened inside the threaded sleeve. A limit block is slidably connected inside the third vertical groove, and the bottom end of the limit block is fixedly connected to the top end of the screw.

[0014] As a preferred technical solution of this utility model, the outer surface of the limiting block is threaded with a second telescopic tube, the second telescopic tube is slidably connected to the inside of the first telescopic rod, the outer surface of the second telescopic tube is fixedly sleeved with a second limiting ring, and the second limiting ring is slidably connected to the inside of the second vertical groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model solves the problem of fixed dial angles in traditional viewing platforms, which cannot adapt to observations at different latitudes, through the design of a flipping mechanism. Operators can adjust the dial's orientation angle flexibly by activating a cylinder to drive the connecting rod and movable block, causing the flipping plate to rotate around the hinge point with the hinge block. This method eliminates the need to replace the viewing platform or padding, offering convenient operation and high precision. It ensures the dial maintains the optimal observation angle matching the local solar altitude angle, avoiding excessive shadow offset and large observation errors, thus improving the accuracy and reliability of shadow observation data at different latitudes. Furthermore, the protractor provides real-time feedback on the rotation angle, assisting in precise angle control and ensuring standardized observation and data traceability.

[0017] 2. This utility model, through a structural design that utilizes a motor-driven bevel gear transmission and a screw mechanism in conjunction with a telescopic component, achieves flexible extension and retraction of the observation pole length. This effectively overcomes the shortcomings of traditional observation platforms where the pole length is fixed and cannot adapt to the observation needs of different seasons. In actual observations, the solar altitude angle changes periodically with the seasons, resulting in significant differences in shadow length. When the shadow is short, shortening the pole length avoids errors in scale readings caused by an excessively short shadow; when the shadow is long, extending the pole length prevents the shadow from exceeding the observation range of the scale, ensuring clear and accurate shadow data can be obtained in different seasons. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 3 This is a cross-sectional view of the motor of this utility model;

[0021] Figure 4 This is a cross-sectional view of the screw of this utility model.

[0022] In the diagram: 1. Dial; 2. Dial groove; 3. Flip plate; 4. Hinge block; 5. Fixing plate; 6. Cylinder; 7. Moving block; 8. Connecting rod; 9. Movable block; 10. Support leg; 11. Reinforcing rod; 12. Fixing block; 13. Protractor; 14. Arc plate; 15. Motor; 16. Shaft; 17. Drive bevel gear; 18. Driven bevel gear; 19. Round shaft; 20. Fixing tube; 21. First vertical groove; 22. Screw; 23. First telescopic rod; 24. Second vertical groove; 25. First limiting ring; 26. Threaded sleeve; 27. Third vertical groove; 28. Limiting block; 29. ​​Second telescopic tube; 30. Second limiting ring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1 to 4 As shown, this utility model provides a viewing platform for observing changes in shadow, comprising:

[0025] A dial 1 has a graduation groove 2 on it;

[0026] A flipping mechanism is located at the bottom of dial 1;

[0027] The flipping mechanism includes a flipping plate 3, the top of which is fixedly connected to the bottom of the dial 1. A hinge block 4 is hinged to the left side of the flipping plate 3. A fixed plate 5 is fixedly installed at the bottom of the hinge block 4. A cylinder 6 is fixedly installed at the top of the fixed plate 5. A moving block 7 is fixedly installed at the output end of the cylinder 6. A connecting rod 8 is hinged to the moving block 7. A movable block 9 is hinged to the end of the connecting rod 8 away from the moving block 7. The top of the movable block 9 is fixedly connected to the bottom of the flipping plate 3. The bottom of the movable block 9 abuts against the top of the fixed plate 5.

[0028] The dial 1 serves as the core carrier for sun shadow observation. The scale grooves 2 on it are used to accurately and intuitively mark the position of the sun shadow to record observation data. The flipping mechanism is set at the bottom of the dial 1 and is responsible for adjusting the tilt angle of the dial 1. The top of the flipping plate 3 is fixedly connected to the dial 1 and is the direct force-bearing component that drives the dial 1 to rotate. The hinge block 4 is hinged to the left side of the flipping plate 3, providing the rotation axis for the flipping plate 3. The fixed plate 5 provides a stable mounting base for the cylinder 6. The cylinder 6 serves as a power source and drives the moving block 7 to move through the output end, which in turn drives the connecting rod 8. The connecting rod 8 converts the linear motion of the moving block 7 into a thrust on the movable block 9. The movable block 9 is fixed to the flipping plate 3 and its bottom end abuts against the fixed plate 5. Under the push of the connecting rod 8, it drives the flipping plate 3 to rotate around the hinge block 4, ultimately realizing the adjustment of the overall tilt angle of the dial 1. All components work together to complete the angle adjustment action to adapt to the observation needs of different latitudes.

[0029] Among them, the bottom end of the fixed plate 5 is fixedly installed with a support leg 10, and the inside of the support leg 10 is fixedly sleeved with a reinforcing rod 11.

[0030] The support leg 10 is fixedly installed at the bottom of the fixed plate 5. Its core function is to support the overall structure of the viewing platform. The reinforcing rod 11 fixedly sleeved inside the support leg 10 can enhance the structural strength of the support leg 10 itself.

[0031] Among them, a fixing block 12 is fixedly installed on the outer surface of the hinge block 4, and a protractor 13 is fixedly installed inside the fixing block 12.

[0032] The fixing block 12 is fixedly installed on the outer surface of the hinge block 4. It is mainly used to provide a stable mounting carrier for the protractor 13 and ensure that the position of the protractor 13 is fixed. The protractor 13 is fixed inside the fixing block 12. Its function is to provide real-time feedback on the rotation angle value of the scale 1 when the flip plate 3 drives the scale 1 to rotate and adjust the angle. This makes it easier for the operator to accurately control the tilt angle of the scale 1, ensure that the angle adjustment meets the observation requirements corresponding to the local latitude, and reduce the angle adjustment error.

[0033] Among them, an arc-shaped plate 14 is fixedly installed at the bottom of the flip plate 3, a motor 15 is fixedly installed on the outer surface of the arc-shaped plate 14, a rotating shaft 16 is fixedly sleeved at the output end of the motor 15, a driving bevel gear 17 is fixedly sleeved on the outer surface of the rotating shaft 16, a driven bevel gear 18 is meshed on the outer surface of the driving bevel gear 17, a round shaft 19 is fixedly sleeved inside the driven bevel gear 18, and the outer surface of the round shaft 19 is movably sleeved with the inside of the dial 1.

[0034] The arc-shaped plate 14 is fixedly installed at the bottom of the flip plate 3, providing a suitable installation space and fixed foundation for the motor 15, ensuring that the motor 15 remains stable during operation. The motor 15 serves as a power source, and the rotating shaft 16 fixedly connected to its output end can transmit the power of the motor 15 to the drive bevel gear 17. The drive bevel gear 17, through meshing with the driven bevel gear 18, converts the rotational motion of the rotating shaft 16 into the rotational motion of the driven bevel gear 18, thereby driving the internally fixedly connected round shaft 19 to rotate.

[0035] Among them, a fixed tube 20 is movably sleeved on the top of the outer surface of the round shaft 19, and a first vertical groove 21 is opened inside the fixed tube 20. A screw 22 is fixedly installed on the top of the round shaft 19, and a first telescopic rod 23 is threadedly sleeved on the outer surface of the screw 22. The first telescopic rod 23 is slidably connected to the inside of the fixed tube 20. A second vertical groove 24 is opened inside the first telescopic rod 23, and a first limiting ring 25 is fixedly sleeved on the outer surface of the first telescopic rod 23. The outer surface of the first limiting ring 25 is slidably connected to the inside of the first vertical groove 21.

[0036] The fixed tube 20 is the basic outer casing component of the observation pole. The first vertical groove 21 inside it provides a sliding track for the first limiting ring 25. The screw 22 fixedly installed at the top of the round shaft 19 can drive the first telescopic rod 23 threadedly connected to it to move by rotation. The first telescopic rod 23 is slidably connected to the inside of the fixed tube 20 and is the first-level telescopic component of the observation pole. The second vertical groove 24 inside it provides sliding space for subsequent components. The first limiting ring 25 fixedly sleeved on the outer surface of the first telescopic rod 23 is slidably connected to the inside of the first vertical groove 21. This not only restricts the movement direction of the first telescopic rod 23 and prevents it from rotating with the screw 22, but also ensures that the first telescopic rod 23 slides stably along the inside of the fixed tube 20, realizing the initial telescopic adjustment of the length of the observation pole.

[0037] The first telescopic rod 23 is movably fitted with a threaded sleeve 26. The threaded sleeve 26 has a third vertical groove 27 inside. The third vertical groove 27 is slidably connected to a limit block 28. The bottom end of the limit block 28 is fixedly connected to the top end of the screw 22.

[0038] The threaded sleeve 26 is movably fitted inside the first telescopic rod 23 and can move under the drive of the first telescopic rod 23. The third vertical groove 27 opened inside it provides a sliding and transmission channel for the limiting block 28. The limiting block 28 is slidably connected to the third vertical groove 27 and its bottom end is fixedly connected to the top end of the screw 22. It can rotate with the screw 22 and drive the threaded sleeve 26 to rotate through the third vertical groove 27, while limiting the axial movement range of the threaded sleeve 26.

[0039] The outer surface of the limiting block 28 is threaded with a second telescopic tube 29, which is slidably connected to the inside of the first telescopic rod 23. The outer surface of the second telescopic tube 29 is fixedly sleeved with a second limiting ring 30, which is slidably connected to the inside of the second vertical groove 24.

[0040] The second telescopic tube 29 is threadedly connected to the outer surface of the limiting block 28 and slidably connected to the inside of the first telescopic rod 23. It is a secondary telescopic component of the observation pole and can telescopically move under the rotation drive of the threaded sleeve 26. The second limiting ring 30, which is fixedly sleeved on the outer surface of the second telescopic tube 29, is slidably connected to the inside of the second vertical groove 24. Its function is to limit the movement direction of the second telescopic tube 29, prevent the second telescopic tube 29 from rotating with the threaded sleeve 26, and ensure that the second telescopic tube 29 slides stably along the inside of the first telescopic rod 23. It works with the first telescopic rod 23 to realize multi-level telescopic adjustment of the length of the observation pole and meet the needs of observing the length of the shadow in different seasons.

[0041] Working principle and usage process of this utility model:

[0042] When using this viewing platform, the operator first needs to adjust the overall orientation angle of the scale 1 according to the local latitude to adapt the device to the differences in solar altitude angles at different latitudes, preventing large observation errors due to latitude issues. The operator first calculates the most suitable orientation angle for the scale 1 based on the local latitude, then activates cylinder 6. The output of cylinder 6 will drive the moving block 7 to move to the right. At this time, the connecting rod 8 will move under the influence of the moving block 7, and the end of the connecting rod 8 furthest from the moving block 7 will move the movable block 9. The squeezing and pushing cause the movable block 9 to drive the flip plate 3 to move. Since the flip plate 3 is hinged to the hinge block 4, the flip plate 3 will rotate around the hinge point with the hinge block 4 as the axis. At this time, the entire dial 1 will rotate under the drive of the flip plate 3. During this process, the orientation angle of the dial 1 will change, thereby realizing the adjustment of the overall tilt angle of the dial 1 according to the usage requirements. At the same time, since a protractor 13 is installed on the fixed block 12 on the outer surface of the hinge block 4, it will be convenient for the operator to observe the overall rotation angle of the dial 1.

[0043] After the angle of dial 1 is adjusted, when the operator needs to adjust the overall height of the fixed tube 20 to meet the observation requirements of the shadow length in different seasons, the motor 15 is started. The output of motor 15 will drive the rotating shaft 16 to rotate, which in turn will drive the drive bevel gear 17 to rotate. Since the outer surface of the drive bevel gear 17 meshes with the outer surface of the driven bevel gear 18, when the drive bevel gear 17 rotates, it will drive the round shaft 19 to rotate through the driven bevel gear 18. The round shaft 19 will then drive the screw 22 to rotate. The positioning block 28 will rotate under the drive of the screw 22. Since the outer surface of the screw 22 is threadedly connected to the inner thread of the first telescopic rod 23, and the first limiting ring 25 fixedly sleeved on the outer surface of the first telescopic rod 23 is slidably connected to the first vertical groove 21 inside the fixed tube 20, when the screw 22 rotates, it will drive the first limiting ring 25 to move upward along the inside of the first vertical groove 21 through the first telescopic rod 23. At this time, the first telescopic rod 23 will move upward along the inside of the fixed tube 20. At the same time, the first telescopic rod 23 will drive the first limiting ring 25 to move upward through the threaded sleeve 26. As the second telescopic tube 29 moves upward, the outer surface of the limiting block 28 slides in connection with the third vertical groove 27 inside the threaded sleeve 26. Therefore, when the threaded sleeve 26 moves upward, the third vertical groove 27 inside it will move upward along the outer surface of the limiting block 28. Furthermore, due to the design of the third vertical groove 27 and the limiting block 28, when the limiting block 28 rotates under the drive of the screw 22, the limiting block 28 will drive the threaded sleeve 26 to rotate around the point of engagement with the first telescopic rod 23 via the third vertical groove 27. Since the outer surface of the threaded sleeve 26 is connected to the second telescopic tube... The internal threaded sleeve 29 is used for the rotation of the threaded sleeve 26. Therefore, when the threaded sleeve 26 rotates, it will drive the second limiting ring 30 to move through the second telescopic tube 29. Since the outer surface of the second limiting ring 30 is slidably connected to the second vertical groove 24 inside the first telescopic rod 23, the second telescopic tube 29 will drive the second limiting ring 30 to move upward along the inside of the second vertical groove 24. During this process, the first telescopic rod 23 will move upward along the inside of the fixed tube 20, and the second telescopic tube 29 will move upward along the inside of the first telescopic rod 23, thereby realizing the telescopic movement of the observation pole.

[0044] In addition, since the bottom of the fixed plate 5 is equipped with a support leg 10, it can support the entire device. Since the support leg 10 is internally fixed with a reinforcing rod 11, it can enhance the structural strength of the support leg 10. At the same time, depending on the actual use environment requirements, a dust cover can be installed on the outside of the drive bevel gear 17 and the driven bevel gear 18 to prevent dust and impurities from entering the gear meshing parts, prevent the parts from jamming or wearing due to dust accumulation, and ensure the transmission accuracy and service life of the device.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A viewing platform for observing changes in shadow, characterized in that, Including: A scale (1) is provided with a scale groove (2); A flipping mechanism is provided at the bottom of the dial (1); The flipping mechanism includes a flipping plate (3), the top of which is fixedly connected to the bottom of the dial (1), a hinge block (4) is hinged to the left side of the flipping plate (3), a fixed plate (5) is fixedly installed at the bottom of the hinge block (4), a cylinder (6) is fixedly installed at the top of the fixed plate (5), a moving block (7) is fixedly installed at the output end of the cylinder (6), a connecting rod (8) is hinged to the moving block (7), a movable block (9) is hinged to the end of the connecting rod (8) away from the moving block (7), the top of the movable block (9) is fixedly connected to the bottom of the flipping plate (3), and the bottom of the movable block (9) abuts against the top of the fixed plate (5).

2. A viewing platform for observing changes in shadow according to claim 1, characterized in that: The bottom end of the fixed plate (5) is fixedly installed with a support leg (10), and a reinforcing rod (11) is fixedly sleeved inside the support leg (10).

3. A viewing platform for observing changes in shadow according to claim 1, characterized in that: A fixing block (12) is fixedly installed on the outer surface of the hinge block (4), and a protractor (13) is fixedly installed inside the fixing block (12).

4. A viewing platform for observing changes in shadow according to claim 1, characterized in that: An arc-shaped plate (14) is fixedly installed at the bottom of the flip plate (3). A motor (15) is fixedly installed on the outer surface of the arc-shaped plate (14). A rotating shaft (16) is fixedly sleeved at the output end of the motor (15). A driving bevel gear (17) is fixedly sleeved on the outer surface of the rotating shaft (16). A driven bevel gear (18) is meshed on the outer surface of the driving bevel gear (17). A round shaft (19) is fixedly sleeved inside the driven bevel gear (18). The outer surface of the round shaft (19) is movably sleeved with the inside of the dial (1).

5. A viewing platform for observing changes in shadow according to claim 4, characterized in that: A fixed tube (20) is movably sleeved on the top of the outer surface of the round shaft (19). A first vertical groove (21) is opened inside the fixed tube (20). A screw (22) is fixedly installed on the top of the round shaft (19). A first telescopic rod (23) is threaded on the outer surface of the screw (22). The first telescopic rod (23) is slidably connected to the inside of the fixed tube (20). A second vertical groove (24) is opened inside the first telescopic rod (23). A first limiting ring (25) is fixedly sleeved on the outer surface of the first telescopic rod (23). The outer surface of the first limiting ring (25) is slidably connected to the inside of the first vertical groove (21).

6. A viewing platform for observing changes in shadow according to claim 5, characterized in that: The first telescopic rod (23) is movably fitted with a threaded sleeve (26), and the threaded sleeve (26) has a third vertical groove (27) inside. The third vertical groove (27) is slidably connected to a limit block (28), and the bottom end of the limit block (28) is fixedly connected to the top end of the screw (22).

7. A viewing platform for observing changes in shadow according to claim 6, characterized in that: The outer surface of the limiting block (28) is threaded with a second telescopic tube (29), the second telescopic tube (29) is slidably connected to the inside of the first telescopic rod (23), the outer surface of the second telescopic tube (29) is fixedly sleeved with a second limiting ring (30), and the second limiting ring (30) is slidably connected to the inside of the second vertical groove (24).

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