Physical optics demonstration teaching aid

Abstract

The utility model belongs to the technical field of physics teaching aids, and discloses a physics optics demonstration teaching aid, which comprises a horizontally placed guide member, three moving members are slidably connected on the guide member along the horizontal direction, and an optical member used for refracting light rays or directly irradiating light rays is arranged above the moving member at the middle position. A candle supporting piece used for supporting a candle and an image displaying piece used for displaying an image are installed above the other two moving pieces respectively, the optical piece comprises a supporting frame, a connecting frame is rotationally connected to the interior of the supporting frame, and small hole plates, convex lenses and concave lenses are connected to the circumferential face of the connecting frame in an annular array at equal intervals; by pulling the connecting frame to rotate around the supporting frame, the positions of the small hole plate, the convex lens and the concave lens are adjusted, the device is convenient to switch during demonstration, personnel do not need to waste long time to switch demonstration teaching aids, the demonstration difficulty is reduced, and the teaching efficiency of teaching personnel is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of physical teaching aids, and particularly relates to a physical optical demonstration teaching aid. Background Art

[0002] Optical principles are crucial content in physics teaching. However, due to their abstract nature, students often find it difficult to intuitively understand. Traditional teaching methods usually rely on simple teaching aids such as plane mirrors or mirror stands for demonstration. However, these teaching aids have a single function and limited demonstration effects, and cannot meet the teaching needs of complex optical phenomena. When teaching staff conduct optical experiments, they often need to conduct different optical experiments, such as convex lens imaging experiments, concave lens imaging experiments, and pinhole imaging experiments. When using existing teaching aids for experiments, the teaching staff need to waste a long time switching the demonstration teaching aids, which increases the demonstration difficulty, reduces the teaching efficiency of the teaching staff, and when conducting experiments, the candle wax of the candle will drip down and solidify, which is likely to contaminate the teaching aids, and the teaching staff need to waste time cleaning the teaching aids. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a physical optical demonstration teaching aid to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A physical optical demonstration teaching aid includes a horizontally placed guiding member. Three moving members are slidably connected to the guiding member in the horizontal direction. An optical member for refracting or directly emitting light is installed above the moving member at the middle position. Candle support members for supporting candles and imaging members for displaying images are respectively installed above the other two moving members. The optical member includes a support frame. A connecting frame is rotatably connected inside the support frame. A pinhole plate, a convex lens, and a concave lens are equidistantly connected in a circumferential array on the circumferential surface of the connecting frame. A second connecting rod is fixedly connected to the bottom of the support frame.

[0005] Preferably, the physical optical demonstration teaching aid further includes a protection member. A protection space for shielding and protecting the guiding member, the moving members, the optical member, the candle support members, and the imaging members is formed inside the protection member.

[0006] Preferably, the candle support member includes a candle base. The top of the candle base is open to form a placement cavity for placing the candle.

[0007] Preferably, a liquid guide cover is fixedly connected to the circumferential surface of the candle base, and a first connecting rod is fixedly connected to the bottom of the candle base. A collection cover is sleeved on the first connecting rod. The top of the collection cover is open to form a collection cavity.

[0008] Preferably, the imaging member includes a screen. A third connecting rod is fixedly connected to the bottom of the screen.

[0009] Preferably, the guiding member includes two symmetrically arranged supporting seats, two guiding rods are symmetrically and fixedly connected between the two supporting seats, the moving member is slidably connected between the two guiding rods, and the free ends of the first connecting rod, the second connecting rod and the third connecting rod are all detachably connected to the moving member.

[0010] Preferably, a scale is arranged between the two supporting seats, and the scale is on one side of the guiding rod.

[0011] Preferably, the moving member includes a clamping frame slidably connected between the two guiding rods, and a base tube matching the first connecting rod, the second connecting rod and the third connecting rod is fixedly connected to the top of the clamping frame.

[0012] Preferably, the protection member includes a protective shell, the top of the protective shell is open to form a protection cavity, and two top frames are symmetrically arranged at the top of the protective shell. The protection cavity is between the two top frames. A baffle is slidably connected between the two top frames. Two limiting rods are symmetrically opened at the top of the baffle, and two limiting grooves matching the limiting rods are respectively opened on the two top frames.

[0013] Preferably, one side of the protective shell is open to form a through installation groove, the installation groove is communicated with the protection cavity, and a transparent plate is installed inside the installation groove.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] (1) By arranging a small hole plate, a convex lens and a concave lens, and pulling the connecting frame to rotate around the support frame, the positions of the small hole plate, the convex lens and the concave lens are adjusted, so that the device is convenient to switch during demonstration, and personnel do not need to waste a long time switching demonstration teaching aids, reducing the demonstration difficulty and improving the teaching efficiency of teaching staff.

[0016] (2) By arranging a liquid guiding cover and a collecting cover, when the candle burns to produce candle liquid, the candle liquid is guided by the liquid guiding cover, so that the candle liquid flows into the collecting cavity at the top of the collecting cover, thereby collecting the candle liquid, not easily polluting the teaching aids, and personnel do not need to waste time cleaning the teaching aids, improving the cleaning efficiency of the teaching aids. Description of the Drawings

[0017] Figure 1 is a three-dimensional view of the present utility model;

[0018] Figure 2 is one of the three-dimensional views when the present utility model is in use;

[0019] Figure 3 is the other three-dimensional view when the present utility model is in use;

[0020] Figure 4 is Figure 2One of the perspective views of the protective member removed;

[0021] Figure 5 is Figure 2 Another perspective view of the protective member removed;

[0022] Figure 6 The perspective view when the candle support member and the moving member of the present utility model are connected;

[0023] Figure 7 The perspective view when the optical member and the moving member of the present utility model are connected;

[0024] Figure 8 The perspective view when the imaging member and the moving member of the present utility model are connected;

[0025] In the figure: 1. protective shell; 2. top frame; 3. limit groove; 4. baffle; 5. transparent plate; 6. installation groove; 7. limit rod; 8. candle support member; 81. liquid guide cover; 82. candle base; 83. collection cavity; 84. collection cover; 85. first connecting rod; 9. optical member; 91. second connecting rod; 92. support frame; 93. small hole plate; 94. connecting frame; 95. convex lens; 96. concave lens; 10. imaging member; 101. third connecting rod; 102. screen; 11. guide rod; 12. support seat; 13. protection cavity; 14. moving member; 141. clamping frame; 142. base tube; 15. scale. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Please refer to Figures 1-8 As shown, the present utility model provides the following technical solutions: a physical optics demonstration teaching aid, including a guiding member placed horizontally, on which three moving members 14 are slidably connected in the horizontal direction, and above the moving member 14 at the middle position, an optical member 9 for refracting light or directly emitting light is installed. Above the other two moving members 14, a candle support member 8 for supporting a candle and an imaging member 10 for displaying an image are respectively installed. The optical member 9 includes a support frame 92, inside which a connecting frame 94 is rotatably connected. On the circumferential surface of the connecting frame 94, a small hole plate 93, a convex lens 95 and a concave lens 96 are equally spaced and connected in a circumferential array. The bottom of the support frame 92 is fixedly connected with a second connecting rod 91.

[0028] Through the above technical solution, when a person needs to conduct an optical experiment, place the guiding member in a horizontal position. After placing the guiding member, pull the three moving members 14 on the guiding member, and then adjust the distance between the three moving members 14. When the distance between the three moving members 14 is adjusted to the distance required by the person, adjust the optical member 9, the imaging member 10, and the candle support member 8 to the distance required by the person. Install the candle on the candle support member 8, and then light the candle. When it is necessary to conduct an experiment on the refraction of light, pull the convex lens 95, so that the convex lens 95 drives the connecting frame 94 to rotate relative to the support frame 92, and then place the convex lens 95 on one side of the candle. Refract the light through the convex lens 95 and form an image on the imaging member 10, thereby completing the convex lens imaging experiment. Pull the concave lens 96, so that the concave lens 96 drives the connecting frame 94 to rotate relative to the support frame 92, and then place the concave lens 96 on one side of the candle. Refract the light through the concave lens 96 and form an image on the imaging member 10, thereby completing the concave lens imaging experiment. When it is necessary to conduct an experiment on the direct propagation of light, pull the small hole plate 93, so that the small hole plate 93 drives the connecting frame 94 to rotate relative to the support frame 92, and then place the small hole plate 93 on one side of the candle. Refract the light through the small hole plate 93 and form an image on the imaging member 10, thereby completing the experiment on the direct propagation of light.

[0029] In addition, in the present utility model, in order to protect other structures, the physical optics demonstration teaching aid further includes a protection member, and a protection space for shielding and protecting the guiding member, the moving member 14, the optical member 9, the candle support member 8, and the imaging member 10 is formed inside the protection member.

[0030] In this embodiment, when the person does not need to conduct an experiment, remove the guiding member from the moving member 14, the optical member 9, the candle support member 8, and the imaging member 10, and then place the guiding member, the moving member 14, the optical member 9, the candle support member 8, and the imaging member 10 in the protection space inside the protection member, thereby protecting other structures.

[0031] Specifically, in one embodiment, regarding the above-mentioned candle support member 8:

[0032] As Figures 2-6 shown, the candle support member 8 includes a candle base 82, and the top of the candle base 82 is open to form a placement cavity for placing the candle.

[0033] In this embodiment, when the person needs to place the candle, place the candle in the placement cavity at the top of the candle base 82, thereby supporting the candle.

[0034] In order to facilitate the collection of candle liquid, as Figure 2 - Figure 6As shown, a liquid guide cover 81 is fixedly connected to the peripheral surface of the candle holder 82, and a first connecting rod 85 is fixedly connected to the bottom of the candle holder 82. A collection cover 84 is sleeved on the first connecting rod 85, and the top of the collection cover 84 is open to form a collection chamber 83.

[0035] In this embodiment, when the candle burns and leaves candle liquid, the liquid guide cover 81 guides the candle liquid, so that the candle liquid flows downward, and the collection chamber 83 on the collection cover 84 receives the candle liquid, thereby collecting the candle liquid.

[0036] Specifically, in one embodiment, regarding the above-mentioned imaging member 10:

[0037] As Figures 2-5 、 Figure 8 shown, the imaging member 10 includes a screen 102, and a third connecting rod 101 is fixedly connected to the bottom of the screen 102.

[0038] In this embodiment, the screen 102 is supported by the third connecting rod 101, and an image is displayed through the screen 102.

[0039] In addition, in the present utility model, regarding how the guiding member supports the moving member 14, as Figures 2-5 shown, the guiding member includes two symmetrically arranged support seats 12. Two guiding rods 11 are symmetrically and fixedly connected between the two support seats 12. The moving member 14 is slidably connected between the two guiding rods 11. The free ends of the first connecting rod 85, the second connecting rod 91, and the third connecting rod 101 are all detachably connected to the moving member 14.

[0040] In this embodiment, when the candle holder 82 needs to be installed, one end of the first connecting rod 85 is screwed to the moving member 14. When the support frame 92 needs to be installed, one end of the second connecting rod 91 is screwed to the moving member 14. When the screen 102 needs to be installed, one end of the third connecting rod 101 is screwed to the moving member 14, thereby completing the installation of the candle holder 82, the support frame 92, and the screen 102. When the candle holder 82, the support frame 92, and the screen 102 need to be disassembled, only one end of the first connecting rod 85 needs to be separated from the moving member 14, one end of the second connecting rod 91 needs to be separated from the moving member 14, and one end of the third connecting rod 101 needs to be separated from the moving member 14.

[0041] Moreover, when a person adjusts the distance between the moving members 14, in order to enable the person to easily know the distance between adjacent moving members 14, as Figure 4 and Figure 5 shown, a scale 15 is arranged between the two support seats 12, and the scale 15 is on one side of the guiding rod 11.

[0042] Specifically, in one embodiment, regarding the above-mentioned moving member 14, as Figures 2-8As shown, the moving member 14 includes a clamping frame 141 slidably connected between two guide rods 11. A base tube 142 that matches the first connecting rod 85, the second connecting rod 91, and the third connecting rod 101 is fixedly connected to the top of the clamping frame 141.

[0043] In this embodiment, when it is necessary to install the candle holder 82, one end of the first connecting rod 85 is screwed to the base tube 142. When it is necessary to install the support frame 92, one end of the second connecting rod 91 is screwed to the base tube 142. When it is necessary to install the screen 102, one end of the third connecting rod 101 is screwed to the base tube 142, thereby completing the installation of the candle holder 82, the support frame 92, and the screen 102. When it is necessary to disassemble the candle holder 82, the support frame 92, and the screen 102, only need to separate one end of the first connecting rod 85 from the base tube 142, separate one end of the second connecting rod 91 from the base tube 142, and separate one end of the third connecting rod 101 from the base tube 142.

[0044] In addition, in the present utility model, regarding how the protection member protects other structures, such as Figures 1-3 As shown, the protection member includes a protective shell 1. The top of the protective shell 1 is open to form a protection cavity 13, and two top frames 2 are symmetrically arranged at the top of the protective shell 1. The protection cavity 13 is located between the two top frames 2. A baffle 4 is slidably connected between the two top frames 2. Two limiting rods 7 are symmetrically opened at the top of the baffle 4, and two limiting grooves 3 that match the limiting rods 7 are respectively opened on the two top frames 2.

[0045] In this embodiment, place the structure to be protected in the protection cavity 13 inside the protective shell 1. After the structure to be protected is placed in the protection cavity 13, pull the baffle 4 to slide between the two top frames 2 until the baffle 4 completely covers the protection cavity 13, thereby protecting other structures. And when the baffle 4 moves, through the cooperation of the limiting groove 3 and the limiting rod 7, it is avoided that the baffle 4 accidentally falls off. When a person needs to conduct an experiment, pull the baffle 4 to slide between the two top frames 2 until the protection cavity 13 is completely exposed, and then the structure inside the protection cavity 13 can be taken out for use.

[0046] In order to enable a person to easily observe the position of the clamping frame 141 and allow the device to be observed without being taken out, as Figures 1-3 As shown, one side of the protective shell 1 is open to form a through installation groove 6. The installation groove 6 communicates with the protection cavity 13, and a transparent plate 5 is installed inside the installation groove 6.

[0047] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. Physical optics demonstration teaching aid, characterized by: The invention comprises a horizontally placed guide member, wherein three moving members (14) are connected to the guide member in a sliding manner in a horizontal direction, and an optical member (9) for refracting light or directing light is installed above the moving member (14) at a middle position, and a candle support member (8) for supporting a candle and an image display member (10) for displaying an image are installed above the other two moving members (14), respectively, and the optical member (9) comprises a support frame (92), wherein the support frame (92) is rotatably connected to a connecting frame (94) inside, and a peripheral surface of the connecting frame (94) is equidistantly connected to a pinhole plate (93), a convex lens (95) and a concave lens (96) in a circular array, and a second connecting rod (91) is fixedly connected to the bottom of the support frame (92); It also includes a protective member, wherein a protective space is formed inside the protective member to shield and protect the guide member, the moving member (14), the optical member (9), the candle support member (8) and the imaging member (10); The protective member comprises a protective shell (1), the top of the protective shell (1) is open to form a protective cavity (13), and two top frames (2) are symmetrically arranged on the top of the protective shell (1), the protective cavity (13) is located between the two top frames (2), a baffle (4) is slidably connected between the two top frames (2), two limit rods (7) are symmetrically arranged on the top of the baffle (4), and two limit grooves (3) matching the limit rods (7) are respectively arranged on the two top frames (2).

2. The physical optics demonstration teaching aid according to claim 1, characterized in that: The candle support (8) comprises a candle holder (82), the top of which is open to form a placement cavity for placing the candle.

3. The physical optics demonstration teaching aid according to claim 2, characterized in that: The circumferential surface of the candle holder (82) is fixedly connected to a liquid guide cover (81), and the bottom of the candle holder (82) is fixedly connected to a first connecting rod (85), a collecting cover (84) is sleeved on the first connecting rod (85), and the top of the collecting cover (84) is open to form a collecting chamber (83).

4. The physical optics demonstration teaching aid according to claim 3, characterized in that: The display element (10) comprises a screen (102), and a third connecting rod (101) is fixedly connected to the bottom of the screen (102).

5. The physical optics demonstration teaching aid according to claim 4, characterized in that: The guide member comprises two symmetrically arranged support seats (12), two guide rods (11) are symmetrically fixedly connected between the two support seats (12), the movable member (14) is slidably connected between the two guide rods (11), and the free ends of the first connecting rod (85), the second connecting rod (91) and the third connecting rod (101) are all detachably connected to the movable member (14).

6. The physical optics demonstration teaching aid according to claim 5, characterized in that: A scale (15) is arranged between the two support seats (12), and the scale (15) is located on one side of the guide rod (11).

7. The physical optics demonstration teaching aid according to claim 5, characterized in that: The moving member (14) comprises a bracket (141) slidably connected between two guide rods (11), and a base tube (142) matching the first connecting rod (85), the second connecting rod (91) and the third connecting rod (101) is fixedly connected to the top of the bracket (141).

8. The physical optics demonstration teaching aid according to claim 1, characterized in that: One side of the protective shell (1) is open to form a through-type installation groove (6); the installation groove (6) is in communication with the protective cavity (13); and a transparent plate (5) is installed inside the installation groove (6).

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