Light refraction demonstration teaching aid for high school physics teaching

Abstract

The utility model discloses a light refraction demonstration teaching aid for high school physics teaching, which relates to the technical field of physics teaching tools, and comprises a teaching aid frame body, the lower surface of the teaching aid frame body is provided with a storage groove, and the right side of the teaching aid frame body is provided with a hanging ring; a supporting block is arranged at the upper part in the teaching aid frame body; a built-in groove is formed in the top surface in the teaching aid frame body, a sliding block is installed on a threaded rod, and a laser lamp is installed below the sliding block through a damping rotating assembly; a water tank is installed above the teaching aid frame body, a placing box is installed on the inner wall of the teaching aid frame body, and the lower portion of the water collecting frame is communicated with a drainage cotton thread. The light refraction demonstration teaching aid for high school physics teaching is provided with the supporting block, water can be injected into the supporting block through the water injection groove or the second water inlet pipe, the refracting lens is taken away, the water surface in the supporting block is irradiated through the laser lamp, and therefore light refraction demonstration of two media of the refracting lens and water can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of physics teaching tools, specifically a light refraction demonstration teaching aid for high school physics teaching. Background Technology

[0002] Refraction of light refers to the phenomenon where the direction of light propagation changes when light travels obliquely from one medium into another. Specifically, when light enters another medium, its direction of propagation changes due to the difference in the speed of light between the two media; this phenomenon is called refraction of light.

[0003] In physics teaching, demonstration tools are often used to enable students to observe the phenomenon of light refraction more clearly and intuitively.

[0004] For example, Chinese utility model patent application number 201822159546.8 discloses a light refraction demonstration teaching aid for high school physics. It has a simple structure; simply turn on the laser lamp to use it. The device allows for rotation of the first and second lenses to change the refraction angle of the light beam, making the experimental effect more intuitive and convenient. The laser head can slide via the second fixed column, changing the distance between the laser lamp and the lenses. The laser lamp's height can be adjusted via an electric telescopic rod, which can also rotate along the second rotating collar, making the device more flexible. However, this device still has certain shortcomings.

[0005] When demonstrating the phenomenon of light refraction, the refraction of light can only be observed through a mirror, and the refraction of light in water cannot be observed, which leads to certain limitations of the demonstration device.

[0006] Therefore, we propose a light refraction demonstration teaching aid for high school physics teaching in order to solve the problems mentioned above. Utility Model Content

[0007] The purpose of this invention is to provide a light refraction demonstration teaching aid for high school physics teaching, in order to solve the problem mentioned in the background art that the current demonstration of light refraction can only be observed through a mirror as a medium, and cannot observe the refraction of light in water, thus resulting in certain limitations of the demonstration device.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a light refraction demonstration teaching aid for high school physics teaching, including a teaching aid frame, a storage groove is provided on the lower surface of the teaching aid frame, and an adjustable telescopic rod is installed inside the storage groove through a rotating shaft assembly, and a hanging ring is installed on the right side of the teaching aid frame;

[0009] A support block is installed on the upper part of the inside of the teaching aid frame, and a refractive lens is placed on top of the support block;

[0010] The teaching aid frame has an internal groove on its top surface, and a threaded rod is installed in the internal groove. A slider is installed on the threaded rod, and a laser light is installed below the slider via a damping rotation assembly.

[0011] A water tank is installed on the top of the teaching aid frame, and a first water inlet pipe is connected to the bottom of the water tank. A placement box is installed on the inner wall of the teaching aid frame, and a water collection frame is installed inside the placement box. A drainage cotton thread is connected to the bottom of the water collection frame. A cleaning wipe is installed inside the placement box. A second water inlet pipe is connected between the water tank and the support block.

[0012] Preferably, a limit nut is installed on the rotating shaft assembly, the limit nut is threadedly connected to the rotating shaft assembly, and a counterweight anti-slip plate is provided at the lower end of the adjustable telescopic rod.

[0013] With the above structural design, when it is necessary to fix the adjustable telescopic rod, rotate the limiting nut. The limiting nut will press the adjustable telescopic rod to fix it. When storing the adjustable telescopic rod, rotate the limiting nut away from the adjustable telescopic rod, and then rotate the adjustable telescopic rod into the storage slot on the teaching aid frame. This reduces the size of the device and makes it easy to carry with the hanging ring.

[0014] Preferably, the support block has a hollow and transparent structure, and a water injection groove is provided on the support block, and a cover plate is provided on the top of the support block.

[0015] With the above structural design, water can be injected into the support block through a water tank or a second water inlet pipe. The refracting lens can be removed, and the water surface inside the support block can be irradiated by a laser light, thus realizing a demonstration of light refraction between the refracting lens and water.

[0016] Preferably, the slider is slidably connected to the built-in groove, and the threaded rod is threadedly connected to the teaching aid frame.

[0017] With the above structural design, rotating the threaded rod causes the slider to move left and right, which in turn causes the damping rotation component and the laser lamp below to move left and right, thus facilitating the adjustment of the laser lamp's position. The damping rotation component also facilitates the adjustment of the laser lamp's angle.

[0018] Preferably, the drainage cotton thread is fixed to the inner top of the water collection frame, and the drainage cotton thread is designed to be equidistant. Water in the water collection frame is discharged through the drainage cotton thread, and the water collection frame is located on the front side inside the placement box.

[0019] With the above structural design, opening the control valve on the first water inlet pipe allows water from the tank to be transported to the water collection frame through the first water inlet pipe. Water then flows through the drainage cotton thread in the water collection frame to the cleaning plate. At this point, the cleaning plate is slowly pulled outwards, allowing the absorbent cloth on the cleaning plate to absorb the water from the drainage cotton thread. After pulling the cleaning plate out about halfway, the control valve on the first water inlet pipe is closed, thus wetting the absorbent cloth on the cleaning plate, facilitating the cleaning of the refractive lens. This improves cleaning efficiency and allows chalk dust falling into the refractive lens during teaching to be cleaned promptly, preventing any impact on the light refraction effect.

[0020] Preferably, the cleaning wipe plate is pulled out from the placement box, and an absorbent cloth can be detachably installed on top of the cleaning wipe plate.

[0021] With the above structural design, the absorbent cloth on the cleaning plate can be disassembled for cleaning or replacement.

[0022] Preferably, both the second water inlet pipe and the first water inlet pipe are equipped with a simple control valve, and the second water inlet pipe is connected to the interior of the support block.

[0023] With the above structural design, when it is necessary to demonstrate the refraction of light through water, in the absence of water in the surrounding area, the control valve on the second water inlet pipe can be opened, and the water in the water tank can be transported to the interior of the support block through the second water inlet pipe, thereby completing the demonstration of the refraction of light through water.

[0024] Compared with the prior art, the beneficial effects of this utility model are: This light refraction demonstration teaching aid for high school physics teaching:

[0025] 1. It is equipped with a storage slot and an adjustable telescopic rod. When it is necessary to fix the adjustable telescopic rod, rotate the limiting nut. The limiting nut will press the adjustable telescopic rod to fix it. To store the adjustable telescopic rod, rotate the limiting nut away from the adjustable telescopic rod, and then rotate the adjustable telescopic rod into the storage slot on the teaching aid frame. This reduces the size of the device and makes it easy to carry with the hanging ring.

[0026] 2. Equipped with a drainage cotton thread and a cleaning wiper, the water in the tank is transported to the water collection frame through the first water inlet pipe after the control valve is opened. The water then flows through the drainage cotton thread in the water collection frame to the cleaning wiper. At this time, the cleaning wiper is slowly pulled out, allowing the absorbent cloth on the cleaning wiper to absorb the water from the drainage cotton thread. After pulling the cleaning wiper about halfway out, the control valve on the first water inlet pipe is closed, which wets the absorbent cloth on the cleaning wiper, making it easier to clean the refractive lens. This improves the cleaning efficiency and allows chalk dust that falls into the refractive lens during teaching to be cleaned promptly, preventing it from affecting the light refraction effect.

[0027] 3. A support block is provided. Water can be injected into the support block through a water tank or a second water inlet pipe. The refracting lens can be removed, and the water surface inside the support block can be irradiated by a laser light, thus realizing the light refraction demonstration of the two media, the refracting lens and water. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall main structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the structure of this utility model when it is being stored.

[0030] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0031] Figure 4 This is a schematic diagram showing the position and structure of the rotating shaft assembly and the limiting nut of this utility model;

[0032] Figure 5 This is a schematic diagram of the support block structure of this utility model;

[0033] Figure 6 This is a schematic diagram of the structure of the placement box of this utility model;

[0034] Figure 7 This is a schematic diagram of the internal structure of the placement box of this utility model.

[0035] In the diagram: 1. Teaching aid frame; 2. Storage slot; 3. Rotating shaft assembly; 4. Adjustable telescopic rod; 5. Limiting nut; 6. Hanging ring; 7. Support block; 8. Water inlet; 9. Cover plate; 10. Refraction lens; 11. Internal slot; 12. Threaded rod; 13. Slider; 14. Damped rotation assembly; 15. Laser light; 16. Water tank; 17. First water inlet pipe; 18. Placement box; 19. Water collection frame; 20. Drainage cotton thread; 21. Cleaning wipe plate; 22. Second water inlet pipe. Detailed Implementation

[0036] 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.

[0037] Please see Figures 1-7This utility model provides a technical solution: a light refraction demonstration teaching aid for high school physics teaching, including a teaching aid frame 1, a storage groove 2, a rotating shaft assembly 3, an adjustable telescopic rod 4, a limiting nut 5, a hanging ring 6, a support block 7, a water inlet 8, a cover plate 9, a refraction lens 10, an internal groove 11, a threaded rod 12, a slider 13, a damping rotation assembly 14, a laser light 15, a water tank 16, a first water inlet pipe 17, a placement box 18, a water collection frame 19, a drainage cotton thread 20, a cleaning wipe 21, and a second water inlet pipe 22. The lower surface of the teaching aid frame 1 has a storage groove 2, and the inside of the storage groove 2 is equipped with a light refraction demonstration demonstration aid through the rotating shaft assembly 3. The adjustable telescopic rod 4 is attached to the right side of the teaching aid frame 1, and a hanging ring 6 is installed on the right side. A limit nut 5 is installed on the rotating shaft assembly 3 and is threadedly connected to the rotating shaft assembly 3. A counterweight anti-slip plate is provided at the lower end of the adjustable telescopic rod 4. When it is necessary to fix the adjustable telescopic rod 4, rotate the limit nut 5. The limit nut 5 will press the adjustable telescopic rod 4 to fix it. When storing the adjustable telescopic rod 4, rotate the limit nut 5 away from the adjustable telescopic rod 4, and then rotate the adjustable telescopic rod 4 into the storage slot 2 on the teaching aid frame 1. This reduces the size of the device and makes it easy to carry the device through the hanging ring 6.

[0038] A support block 7 is installed on the upper part of the inside of the teaching aid frame 1, and a refractive lens 10 is placed on the upper part of the support block 7. The support block 7 has a hollow and transparent structure design, and a water inlet 8 is opened on the support block 7. A cover plate 9 is set on the upper part of the support block 7. Water can be injected into the inside of the support block 7 through the water inlet 8 or the second water inlet pipe 22. The refractive lens 10 is removed, and the water surface inside the support block 7 is irradiated by the laser light 15, thereby realizing the light refraction demonstration of the two media, the refractive lens 10 and water.

[0039] The teaching aid frame 1 has an internal groove 11 on its inner top surface, and a threaded rod 12 is installed in the internal groove 11. A slider 13 is installed on the threaded rod 12. The slider 13 is slidably connected to the internal groove 11. The threaded rod 12 is threadedly connected to the teaching aid frame 1. Rotating the threaded rod 12 causes the slider 13 to move left and right. The slider 13 causes the damping rotation component 14 and the laser light 15 below to move left and right, thereby facilitating the adjustment of the position of the laser light 15. The damping rotation component 14 facilitates the adjustment of the angle of the laser light 15. The damping rotation component 14 is existing technology and is similar to the structure of a computer flip cover or an adjustable mobile phone stand. The laser light 15 is installed below the slider 13 through the damping rotation component 14.

[0040] A water tank 16 is installed on the top of the teaching aid frame 1, and a first water inlet pipe 17 is connected to the bottom of the water tank 16. A placement box 18 is installed on the inner wall of the teaching aid frame 1, and a water collection frame 19 is installed inside the placement box 18. A drainage cotton thread 20 is connected to the bottom of the water collection frame 19. The drainage cotton thread 20 is fixed to the inner top of the water collection frame 19 and is designed to be equidistant. Water in the water collection frame 19 is discharged through the drainage cotton thread 20. The water collection frame 19 is located inside the placement box 18. At the front of the unit, open the control valve on the first water inlet pipe 17. Water from the water tank 16 is then transported through the first water inlet pipe 17 to the water collection frame 19, and then flows through the drainage cotton thread 20 in the water collection frame 19 to the cleaning wipe plate 21. At this time, slowly pull out the cleaning wipe plate 21 so that the absorbent cloth on the cleaning wipe plate 21 absorbs the water on the drainage cotton thread 20. Pull the cleaning wipe plate 21 out about halfway, and then close the control valve on the first water inlet pipe 17 to allow the cleaning to proceed. The absorbent cloth on the cleaning plate 21 is wetted, making it easier to clean the refractive lens 10 and improving cleaning efficiency. This also allows chalk dust that falls into the refractive lens 10 during teaching to be cleaned promptly, preventing it from affecting the light refraction effect. The cleaning plate 21 is installed inside the placement box 18 and is connected to the placement box 18 by a pull-out mechanism. An absorbent cloth can be detachably installed on the top of the cleaning plate 21, allowing it to be removed for cleaning or replacement. A second water inlet pipe 22 connects the water tank 16 and the support block 7. Both the second water inlet pipe 22 and the first water inlet pipe 17 are equipped with simple control valves. The second water inlet pipe 22 is connected to the inside of the support block 7. When it is necessary to demonstrate the refraction of light through water, if there is no water around, the control valve on the second water inlet pipe 22 can be opened, and the water in the water tank 16 can be transported to the inside of the support block 7 through the second water inlet pipe 22, thus completing the demonstration of the refraction of light through water.

[0041] Working principle: When using this high school physics teaching light refraction demonstration tool, firstly, the laser lamp 15 illuminates the refracting lens 10 to observe the direction of the light. Then, the threaded rod 12 is rotated, which drives the slider 13 to move left and right. The slider 13 drives the damping rotation component 14 and the laser lamp 15 to move left and right, thus facilitating the adjustment of the position of the laser lamp 15. The damping rotation component 14 facilitates the adjustment of the angle of the laser lamp 15.

[0042] Water can be injected into the support block 7 through the water tank 8 or the second water inlet pipe 22. The refracting lens 10 can be removed, and the water surface inside the support block 7 can be irradiated by the laser light 15, thereby realizing the light refraction demonstration of the two media, the refracting lens 10 and water.

[0043] When cleaning chalk dust on the refractive lens 10, open the control valve on the first water inlet pipe 17. Water in the water tank 16 is transported to the water collection frame 19 through the first water inlet pipe 17, and then flows through the drainage cotton thread 20 in the water collection frame 19 to the cleaning wipe plate 21. At this time, slowly pull out the cleaning wipe plate 21 so that the absorbent cloth on the cleaning wipe plate 21 absorbs the water on the drainage cotton thread 20. Pull out the cleaning wipe plate 21 about halfway and close the control valve on the first water inlet pipe 17. This will wet the absorbent cloth on the cleaning wipe plate 21, making it easier to clean the refractive lens 10. The cleaning efficiency is better, and chalk dust falling into the refractive lens 10 during teaching can be cleaned in time to prevent it from affecting the light refraction effect.

[0044] Finally, to store the adjustable telescopic rod 4, rotate the limiting nut 5 away from the adjustable telescopic rod 4, and then rotate the adjustable telescopic rod 4 into the storage slot 2 on the teaching aid frame 1, thereby reducing the size of the device. The hanging ring 6 facilitates carrying the device. This completes a series of steps. Content not described in detail in this specification is prior art known to those skilled in the art.

[0045] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A light refraction demonstration teaching aid for high school physics teaching, comprising a teaching aid frame (1), characterized in that: The lower surface of the teaching aid frame (1) is provided with a storage groove (2), and an adjustable telescopic rod (4) is installed inside the storage groove (2) through a rotating shaft assembly (3). A hanging ring (6) is installed on the right side of the teaching aid frame (1). A support block (7) is installed on the upper part of the inside of the teaching aid frame (1), and a refractive lens (10) is placed on the upper part of the support block (7); The teaching aid frame (1) has an internal groove (11) on its inner top surface, and a threaded rod (12) is installed in the internal groove (11). A slider (13) is installed on the threaded rod (12), and a laser lamp (15) is installed below the slider (13) via a damping rotation assembly (14). A water tank (16) is installed on the top of the teaching aid frame (1), and a first water inlet pipe (17) is connected to the bottom of the water tank (16). A placement box (18) is installed on the inner wall of the teaching aid frame (1), and a water collection frame (19) is installed inside the placement box (18). A drainage cotton thread (20) is connected to the bottom of the water collection frame (19). A cleaning wipe plate (21) is provided inside the placement box (18). A second water inlet pipe (22) is connected between the water tank (16) and the support block (7).

2. The light refraction demonstration teaching aid for high school physics teaching according to claim 1, characterized in that: A limit nut (5) is installed on the rotating shaft assembly (3), and the limit nut (5) is threadedly connected to the rotating shaft assembly (3). A counterweight anti-slip plate is provided at the lower end of the adjustable telescopic rod (4).

3. The light refraction demonstration teaching aid for high school physics teaching according to claim 1, characterized in that: The support block (7) has a hollow and transparent structure design, and a water injection groove (8) is provided on the support block (7). A cover plate (9) is provided on the top of the support block (7).

4. The light refraction demonstration teaching aid for high school physics teaching according to claim 1, characterized in that: The slider (13) is slidably connected to the built-in groove (11), and the threaded rod (12) is threadedly connected to the teaching aid frame (1).

5. The light refraction demonstration teaching aid for high school physics teaching according to claim 1, characterized in that: The drainage cotton line (20) is fixed to the inner top of the water collection frame (19), and the drainage cotton line (20) is designed to be equidistant. The water in the water collection frame (19) is discharged through the drainage cotton line (20), and the water collection frame (19) is located on the front side inside the placement box (18).

6. The light refraction demonstration teaching aid for high school physics teaching according to claim 5, characterized in that: The cleaning wipe plate (21) is pulled out and connected to the placement box (18). An absorbent cloth can be detachably installed on the top of the cleaning wipe plate (21).

7. The light refraction demonstration teaching aid for high school physics teaching according to claim 1, characterized in that: A simple control valve is provided on both the second water inlet pipe (22) and the first water inlet pipe (17). The second water inlet pipe (22) is connected to the inside of the support block (7).

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