An optical experiment demonstration device applied to physics teaching

Abstract

The application relates to the field of physical experiments, and discloses an optical experiment demonstration device applied to physical teaching, which solves the problem of poor demonstration effect, and comprises an operation table, a plurality of supporting rods are arranged at the bottom of the operation table, a power supply and a controller are arranged on the upper surface of the operation table, a demonstration box is arranged on the right side of the power supply, a box door is arranged above the demonstration box, a light beam emitter is fixed to the inner surface on the left side of the demonstration box, a reflection demonstrator is arranged on the right side of the light beam emitter, a refraction demonstrator is arranged on the front side of the reflection demonstrator, a scattering demonstrator is arranged on the front side of the light beam emitter, and an air blower is arranged on the inner surface on the right side of the demonstration box; the air blower and the high-efficiency filter film can filter the air, so that the air in the demonstration box is kept clean, the light beam is prevented from being refracted due to dust during demonstration, the accuracy of the experiment is ensured, and the clarity of the experimental effect is ensured.

Description

Technical Field

[0001] The invention belongs to the field of physical experiments, and in particular relates to an optical experiment demonstration device used in physics teaching. Background Art

[0002] Physics studies the most general laws of matter's motion and its fundamental structure. As a leading discipline in the natural sciences, physics relies on experiments as the sole criterion for verifying the validity of theories. Demonstrating optical principles in physics experiments typically involves the use of optical demonstration devices.

[0003] Existing demonstration devices usually conduct experiments in ordinary environments, which makes the light beam inaccurate due to dust in the air, thereby affecting the experimental effect. Existing demonstration devices usually require manual adjustment of the corresponding angle, which further reduces the accuracy of the experiment and wastes a lot of manpower. Therefore, the present invention proposes an optical experiment demonstration device for physics teaching. Summary of the Invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an optical experiment demonstration device for physics teaching, which effectively solves the problems raised in the above background.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an optical experiment demonstration device for physics teaching, comprising an operating table, a plurality of support rods are provided at the bottom of the operating table, a support plate is provided at the bottom of each support rod, a power supply is fixed on the upper surface of the operating table, a controller is fixed on the front side of the power supply, a demonstration box is provided on the right side of the power supply, a door is rotatably connected to the upper part of the demonstration box through a door shaft, a transparent glass is fixed in the middle of the door, a handle is fixed on the front end of the upper surface of the door, a light beam emitter is fixed on the inner surface of the left side of the demonstration box, a reflector is provided on the right side of the light beam emitter, the reflector is fixed to the upper surface of the operating table through a reflector fixing rod, and the reflector A reflection angle measurer is fixed on the upper surface of the reflector demonstrator, a reflector fixing rod is provided inside the reflector demonstrator, a reflector is fixed on the top of the reflector fixing rod, and the bottom of the reflector fixing rod is fixed to the middle part of the reflector demonstrator through a bearing, a refraction track is provided on the front side of the reflector demonstrator, a refraction demonstrator is provided on the right side of the refraction track, the refraction demonstrator and the refraction track are fixed to the upper surface of the operating table through the refraction demonstrator fixing rod, a scattering demonstrator is provided on the front side of the light beam transmitter, and the scattering demonstrator is fixed to the upper surface of the operating table through the scatterer fixing rod, an induced draft fan is provided on the right inner surface of the demonstration box, and the induced draft fan is fixedly connected to the fresh air outlet on the right side of the demonstration box through a pipe.

[0006] Preferably, an exhaust gas outlet is provided on the left inner surface of the demonstration box, an exhaust gas machine is connected to the left side of the exhaust gas outlet through a pipeline, an exhaust gas motor is provided at the bottom of the exhaust gas machine, and the exhaust gas motor is fixed to the upper surface of the operating table.

[0007] Preferably, a reflection beam emitting head is fixed on the rear side of the beam emitter, the reflector fixing rod is located at one end of the extension line of the reflection beam emitting head, a reflection pointer is fixed at the bottom end of the reflector fixing rod, and an incident angle measurer is also fixed on the upper surface of the interior of the reflector demonstrator, and the incident angle measurer is concentric with the reflector fixing rod.

[0008] Preferably, a reflector rotating motor is fixed to the bottom of the reflector demonstrator, the reflector rotating motor is rotatably connected to a reflector main gear, the reflector main gear is meshedly connected to a reflector gear, and the top of the reflector gear is fixedly connected to the reflector fixing rod.

[0009] Preferably, a refractive beam emitting head is fixed to the middle part of the right side of the beam emitter, a refractive angle measuring device is fixed to the upper surface of the refractive demonstrator, a refractive medium changer is provided between the refractive demonstrator and the refractive track, a refractive medium replacement motor is rotatably connected to the right side of the refractive medium changer, and the refractive medium replacement motor is fixed to the upper surface of the operating table by replacing the motor fixing rod.

[0010] Preferably, a plurality of refractive medium fixing rods are fixed to the outer surface of the refractive medium changer, a refractive medium support plate is fixed to the end of the refractive medium fixing rod, a refractive medium is provided on the side of the refractive medium support plate away from the refractive medium changer, a refractive medium clamping plate is provided on the upper and lower sides of the refractive medium, the refractive medium clamping plate is rotatably connected to a refractive medium clamping motor via a rotating shaft, and the refractive medium clamping motor is fixed to the side of the refractive medium support plate close to the refractive medium replacement motor.

[0011] Preferably, a red scattered light beam emitting head is fixed to the front end of the right side of the light beam emitter, a scattering medium is provided on the extension line of the red scattered light beam emitting head, and the scattering medium is fixed to the upper surface of the scattering demonstrator through a fixing plate.

[0012] Preferably, a blue scattered light beam emitting head is fixed to the front end of the light beam emitter, and the scattering medium is also provided on the extension line of the blue scattered light beam emitting head.

[0013] Preferably, the bottom of the induced draft fan is rotatably connected to an induced draft motor, the induced draft motor is fixed to the upper surface of the operating table, and a high-efficiency filter membrane is fixed on the left side inside the induced draft fan.

[0014] Preferably, a roller elevator is fixed inside each support plate, the bottom of each roller elevator is rotatably connected to a roller lifting rod, the bottom of each roller lifting rod is frictionally connected to a roller fixing plate, and the inside of each roller fixing plate is rotatably connected to a roller via a rotating shaft.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention controls the operation of the induced draft fan through the induced draft motor, so that air can be sucked into the demonstration box through the fresh air inlet, and the air can be further filtered through the high-efficiency filter membrane. The exhaust gas can be further discharged by the exhaust gas motor driving the exhaust gas machine, so that the air inside the demonstration box is kept clean, thereby ensuring that the light beam will not be refracted due to dust during the demonstration, thereby ensuring the accuracy of the experiment and the clarity of the experimental effect.

[0017] The present invention controls the operation of the reflector rotation motor through a controller, thereby driving the reflector main gear to rotate, further driving the reflector gear to rotate, further driving the reflector fixing rod to rotate, thereby driving the reflector and the reflection pointer to rotate, thereby changing the incident angle, and at the same time, the incident angle can be observed above the incident angle measuring device. Furthermore, due to the action of the reflector, the light beam can be reflected to the inside of the reflection demonstrator, and the reflection angle can be further observed through the reflection angle measuring device, and the magnitude of the incident angle and the reflection angle can be determined, thereby completing the light reflection experiment, thereby achieving the purpose of automatically changing the angle, and thus improving the efficiency of the experiment;

[0018] The present invention can emit a red light beam through a reflective light beam emitting head, and further a controller controls the operation of a refractive medium replacement motor, thereby rotating the refractive medium replacement device, so that refractive media with different refractive indices can face the refractive light beam emitting head as needed, and further the light beam is projected onto the inner surface of the refraction demonstrator through the refractive medium, and further the refraction angle can be observed by a refraction angle measuring device, thereby completing a light refraction experiment, and thus improving the demonstration effect by using refractive media with different refractive indices;

[0019] The present invention emits a red light beam through a red scattering light beam emitter, which is further emitted to the inner surface of a scattering demonstrator through a scattering medium, so that whether red light is present can be observed on the scattering demonstrator. Similarly, a blue light beam is emitted through a blue scattering light beam emitter, which is further emitted to the inner surface of the scattering demonstrator through a scattering medium, so that whether blue light is present can be observed on the inner surface of the scattering demonstrator, thereby completing a blue light scattering experiment, thereby performing a comparison, thereby completing a scattering experiment, simplifying the scattering experiment, reducing the difficulty of the experiment, saving resources, and reducing the workload.

[0020] The present invention controls the rotation of the roller lifting rod through the roller lifter to drive the roller fixing plate to move up and down, thereby driving the roller fixing plate to move upward, thereby causing the roller to move downward, and finally causing the roller to fit closely with the ground, thereby keeping the entire device stable, thus keeping the entire device balanced, and thus increasing the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0022] In the attached figure:

[0023] Figure 1 It is a main schematic diagram of the present invention;

[0024] Figure 2 It is a rear view schematic diagram of the present invention;

[0025] Figure 3 It is a top view schematic diagram of the present invention;

[0026] Figure 4 This is a schematic diagram of the interior of the demonstration box of the present invention;

[0027] Figure 5 This is a schematic cross-sectional view of the interior of the demonstration box of the present invention;

[0028] Figure 6 This is an enlarged schematic diagram of the induced draft fan of the present invention;

[0029] Figure 7 This is a schematic diagram of a demonstrator of the present invention;

[0030] Figure 8 This is a schematic diagram of a scattering demonstrator according to the present invention;

[0031] Figure 9 This is a schematic diagram of a reflection demonstrator of the present invention;

[0032] Figure 10 It is an enlarged schematic diagram of the reflection demonstrator of the present invention;

[0033] Figure 11 For the present invention Figure 10 Middle A is an enlarged schematic diagram;

[0034] Figure 12 This is a schematic diagram of the bottom of the reflection demonstrator of the present invention;

[0035] Figure 13 This is a schematic diagram of a refraction demonstrator of the present invention;

[0036] Figure 14 It is an enlarged schematic diagram of the refraction demonstrator of the present invention;

[0037] Figure 15 Schematic diagram of the refractive medium clamping mechanism of the present invention;

[0038] Figure 16 It is an enlarged schematic diagram of the refractive medium clamping mechanism of the present invention;

[0039] Figure 17 It is a cross-sectional schematic diagram of the roller mechanism of the present invention.

[0040] In the figure: 1-operating table; 2-support rod; 3-demonstration box; 4-support plate; 5-beam transmitter; 6-reflection demonstrator; 7-refraction demonstrator; 8-scattering demonstrator; 9-induced draft fan; 101-power supply; 102-controller; 301-box door; 302-handle; 303-exhaust fan; 304-exhaust motor; 305-box door shaft; 306-fresh air inlet; 307-exhaust outlet; 401-roller lift; 402-roller lift rod; 403-roller fixing plate; 404-roller; 501-reflection beam transmitter; 502-refraction beam transmitter; 503-red scattered beam transmitter; 504-blue scattered beam transmitter; 601-reflection angle measurer; 602-incident angle measurer; 603- Reflector; 604-reflector fixing rod; 605-bearing; 606-reflection pointer; 607-reflector gear; 608-reflector main gear; 609-reflector rotation motor; 610-reflection demonstrator fixing rod; 701-refractive track; 702-refractive angle measurer; 703-refractive medium changer; 704-refractive demonstrator fixing rod; 731-refractive medium replacement motor; 732-refractive medium fixing rod; 733-refractive medium clamping plate; 734-refractive medium clamping motor; 735-refractive medium; 736-replacement motor fixing rod; 737-refractive medium support plate; 801-scattering medium; 802-scatterer fixing rod; 803-scattering track; 901-induced draft motor; 902-high efficiency filter membrane. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0042] Embodiment 1, by Figure 1-5 、 Figure 8 、 Figure 12 、 Figure 14It is given, including an operating table 1, which adopts a rectangular parallelepiped structure. The operating table 1 is made of lightweight material or alloy material. The operating table 1 is used to support the demonstration box 3. A plurality of support rods 2 are provided at the bottom of the operating table 1. The support rods 2 are made of lightweight material and are used to support the operating table 1. A support plate 4 is provided at the bottom of each support rod 2. The support plate 4 adopts a trapezoidal hollow structure and is used to ensure that the device remains balanced. A power supply 101 is fixed on the upper surface of the operating table 1. The power supply 101 is used to provide energy for the entire device. A controller 102 is fixed on the front side of the power supply 101. The controller 102 is used to control the entire device. A demonstration box 3 is provided on the right side of the power supply 101. The demonstration box 3 adopts a rectangular hollow structure. The demonstration box 3 is made of lightweight material. The demonstration box 3 is used to install the light beam emitter 5. The upper part of the demonstration box 3 is connected to a door 301 through a door shaft 305. The door 301 can ensure that the interior of the demonstration box 3 remains sealed. The door shaft 305 can facilitate the rotation of the door 301. A transparent glass is fixed in the middle of the door 301, so that the internal situation of the demonstration box 3 can be easily observed, thereby facilitating demonstration. A handle 302 is fixed on the front end of the upper surface of the door 301. The handle 302 facilitates the staff to open the door 301. A light beam emitter 5 is fixed on the inner surface of the left side of the demonstration box 3. The light beam emitter 5 is used to control the reflection The red scattered light beam emitting head 501, the refracted light beam emitting head 502, the red scattered light beam emitting head 503 and the blue scattered light beam emitting head 504 are provided on the right side of the light beam emitter 5. The reflector demonstrator 6 is a disc-shaped structure. The inner surface of the reflector demonstrator 6 is made of white material. The reflector demonstrator 6 is used to demonstrate the reflection experiment of light. The reflector demonstrator 6 is fixed to the upper surface of the operating table 1 through a reflector demonstrator fixing rod 610. A reflection angle measuring device 601 is fixed on the upper surface of the reflector demonstrator 6. The reflection angle measuring device 601 is used to display the reflection angle. A reflector fixing rod 604 is provided inside the reflector demonstrator 6. The reflector fixing rod 604 is used to fix the reflector Mirror 603, a reflector 603 is fixed on the top of the reflector fixing rod 604, and the reflector 603 is used to reflect the light beam emitted by the reflected light beam launch head 501. The bottom of the reflector fixing rod 604 is fixed to the middle of the reflector demonstrator 6 through a bearing 605. The inner ring of the bearing 605 is fixedly connected to the reflector fixing rod 604, and its outer ring is fixedly connected to the reflector demonstrator 6. A refraction track 701 is provided on the front side of the reflector demonstrator 6. The refraction track 701 is made of a material with good light absorption. The refraction track 701 provides a channel for the light beam emitted by the refraction light beam launch head 502. A refraction demonstrator 7 is provided on the right side of the refraction track 701. The inner surface of the refraction demonstrator 7 is made of white material.The refraction demonstrator 7 is used to demonstrate refraction experiments. The refraction demonstrator 7 and the refraction track 701 are fixed to the upper surface of the operating table 1 via a refraction demonstrator fixing rod 704. A scattering demonstrator 8 is provided in front of the beam emitter 5. The inner surface of the scattering demonstrator 8 is made of white material. The scattering demonstrator 8 is used to demonstrate scattering experiments and is fixed to the upper surface of the operating table 1 via a scatterer fixing rod 802. An induced draft fan 9 is provided on the right inner surface of the demonstration box 3. The induced draft fan 9 is used to draw in external air. The induced draft fan 9 is fixedly connected to the fresh air inlet 306 on the right side of the demonstration box 3 via a pipe. The fresh air inlet 306 provides a channel for air.

[0043] Example 2, based on Example 1, Figure 5-6 It is given that an exhaust outlet 307 is provided on the inner surface of the left side of the demonstration box 3, and the exhaust outlet 307 provides a channel for exhaust gas. An exhaust machine 303 is connected to the left side of the exhaust outlet 307 through a pipe. The exhaust machine 303 is used to absorb the exhaust gas inside the demonstration box 3. An exhaust motor 304 is provided at the bottom of the exhaust machine 303. The exhaust motor 304 can drive the exhaust machine 303 to work. The exhaust motor 304 is fixed to the upper surface of the operating table 1. The bottom of the induced draft fan 9 is rotatably connected to an induced draft motor 901, and the induced draft motor 901 is used to control the operation of the induced draft fan 9. The induced draft motor 901 is fixed to the upper surface of the operating table 1. A high-efficiency filter membrane 902 is fixed on the left side of the induced draft fan 9. The high-efficiency filter membrane 902 is used to filter the air inhaled from the induced draft fan 9, thereby ensuring that there is no dust inside the demonstration box 3, so that the light experiment is clearly visible;

[0044] When using the present invention, the staff uses the handle 302 to tightly fit the box door 301 to the demonstration box 3. At this time, the controller 102 controls the exhaust motor 304 and the induced draft motor 901 to start working, so that air enters from the fresh air inlet 306, and further enters the interior of the demonstration box 3 after being filtered by the high-efficiency filter membrane 902. At this time, due to the action of the exhaust motor 304, the air inside the demonstration box 3 is extracted from the fresh air inlet 306, and further extracted to the outside of the demonstration box 3 through the exhaust machine 303, thereby ensuring that the interior of the demonstration box 3 is dust-free, thereby ensuring the demonstration effect.

[0045] Example 3, based on Example 1, Figure 7 、 Figure 9-11 、 Figure 13 、 Figure 15-16It is given that a reflection beam emitting head 501 is fixed to the rear side of the beam emitter 5, and the reflection beam emitting head 501 is used to emit a red light beam. The reflection beam emitting head 501 is used for reflection experiments. The reflector fixing rod 604 is located at one end of the extension line of the reflection beam emitting head 501. A reflection pointer 606 is fixed to the bottom end of the reflector fixing rod 604. The reflection pointer 606 is used to indicate the incident angle. The reflection pointer 606 is made of lightweight material. An incident angle measuring device 602 is also fixed to the upper surface of the interior of the reflection demonstrator 6. The incident angle measuring device 602 is made of white material. The incident angle measuring device 602 is used to display the incident angle. The incident angle measuring device 602 and the reflector are connected. The fixing rod 604 is concentric, and a reflector rotating motor 609 is fixed to the bottom of the reflector demonstrator 6. The reflector rotating motor 609 is used to drive the reflector main gear 608 to rotate. The reflector rotating motor 609 is rotatably connected to the reflector main gear 608. The reflector main gear 608 is used to control the rotation of the reflector gear 607. The reflector main gear 608 is meshed with the reflector gear 607. The reflector gear 607 can drive the reflector fixing rod 604 to rotate, thereby driving the reflector 603 to rotate, thereby achieving the purpose of changing the incident angle, and at the same time driving the reflection pointer 606 to rotate, so that the incident angle can be observed above the incident angle measuring device 602. The top of the reflector gear 607 is fixedly connected to the reflector fixing rod 604. A refraction beam emitting head 502 is fixed to the middle of the right side of the beam emitter 5. The refraction beam emitting head 502 provides a red refraction beam for the refraction demonstrator 7. A refraction angle measurer 702 is fixed to the upper surface of the refraction demonstrator 7. A scale is provided above the refraction angle measurer 702. The refraction angle measurer 702 is made of white material. The refraction angle measurer 702 is used to display the refraction angle. A refraction medium changer 703 is provided between the refraction demonstrator 7 and the refraction track 701. The refraction medium changer 703 is used to replace the refraction medium 735. The refraction medium changer 703 rotates on the right side. A refractive medium replacement motor 731 is connected, and the refractive medium replacement motor 731 can drive the refractive medium changer 703 to rotate. The refractive medium replacement motor 731 is fixed to the upper surface of the operating table 1 through a replacement motor fixing rod 736. The replacement motor fixing rod 736 is made of a lightweight material or an alloy material. A plurality of refractive medium fixing rods 732 are fixed to the outer surface of the refractive medium changer 703. The refractive medium fixing rods 732 are made of a lightweight material or an alloy material. The refractive medium fixing rods 732 are used to support the refractive medium support plate 737. The refractive medium support plate 737 is fixed to the end of the refractive medium fixing rod 732. The refractive medium support plate 737 adopts a rectangular parallelepiped structure.The refractive medium support plate 737 is made of a lightweight material, and the outer surface of the refractive medium support plate 737 is roughened to prevent the refractive medium 735 from sliding against the refractive medium support plate 737, thereby ensuring the safety of the refractive experiment. A refractive medium 735 is provided on the side of the refractive medium support plate 737 away from the refractive medium changer 703. There are multiple refractive media 735, and the refractive index of each refractive medium 735 is different, thereby improving the effect of the refractive experiment. Refractive medium clamping plates 733 are provided on the upper and lower sides of the refractive medium 735. The inner surface of the refractive medium clamping plate 733 is roughened to prevent the refractive medium 735 from sliding, thereby ensuring the safety of the experiment. The refractive medium clamping plate 733 is rotatably connected to a refractive medium clamping motor 734 via a rotating shaft. The refractive medium clamping motor 734 is used to drive the refractive medium clamping plate 733 to rotate, thereby clamping the refractive medium. The purpose of the refracting medium 735 is that the refractive medium clamping motor 734 is fixed to the side of the refractive medium support plate 737 close to the refractive medium replacement motor 731, and a red scattered beam emitting head 503 is fixed to the front end of the right side of the beam emitter 5, and the red scattered beam emitting head 503 is used to emit a red light beam, and the red scattered beam emitting head 503 provides a light beam for the red light scattering experiment. A scattering medium 801 is provided on the extension line of the red scattered beam emitting head 503, and the scattering medium 801 is made of a material with poor light transmittance. The scattering medium 801 is fixed to the upper surface of the scattering demonstrator 8 through a fixing plate, and a blue scattered beam emitting head 504 is fixed to the front end of the beam emitter 5, and the blue scattered beam emitting head 504 is used to emit blue light, and the blue scattered beam emitting head 504 provides a light beam for the blue light scattering experiment. The scattering medium 801 is also provided on the extension line of the blue scattered beam emitting head 504;

[0046] Before using the present invention, the power supply 101 controls the plurality of refractive medium clamping motors 734 to start working, thereby causing the refractive medium clamping plate 733 to rotate. At this time, the staff installs the refractive medium 735 on the upper surface of the refractive medium support plate 737. At this time, the controller 102 controls the plurality of refractive medium clamping motors 734 to work in reverse, thereby causing the refractive medium clamping plate 733 to clamp the refractive medium 735. When the interior of the demonstration box 3 is dust-free, the controller 102 controls the light beam emitter 5 to work, thereby causing the reflected light beam emitter 501, the refractive light beam emitter 502, the red scattered light beam emitter 503, and the blue scattered light beam emitter 504 to rotate. The transmitting head 504 emits a light beam, so that the red light beam passes through the reflected light beam transmitting head 501 to reach the reflector 603, and is further reflected by the reflector 603 to the inner surface of the reflector demonstrator 6. At this time, the controller 102 controls the reflector rotation motor 609 to work, thereby driving the reflector main gear 608 to rotate, and then driving the reflector gear 607 to rotate, thereby driving the reflector fixing rod 604 to rotate, thereby driving the reflector 603 and the reflective pointer 606 to rotate, so that the observer can observe the incident angle on the incident angle measuring device 602. At this time, due to the effect of the reflector 603, the reflection angle can be observed above the reflection angle measuring device 601. The reflection angle can be compared to complete the light reflection experiment. At the same time, the refractive beam emitting head 502 emits a red light beam, which is further irradiated to the refractive medium 735 through the refractive track 701. After further refraction, it reaches the inner surface of the refractive demonstrator 7. At this time, if a comparative experiment is required, the controller 102 controls the refractive medium replacement motor 731 to start working, thereby driving the refractive medium changer 703 to rotate, thereby driving multiple refractive medium fixing rods 732 to rotate around the refractive medium changer 703. When the second refractive medium 735 rotates to the top of the refractive medium changer 703, the controller 102 controls the refractive medium replacement motor 731 to start working, thereby driving the refractive medium changer 703 to rotate, thereby driving multiple refractive medium fixing rods 732 to rotate around the refractive medium changer 703. The replacement motor 731 stops working, so that the refraction experiment is carried out again. At the same time, the red scattered light beam emitting head 503 emits a red light beam, so that the red light beam reaches the scattering medium 801, and further passes through the scattering medium 801 to enter the inner surface of the scattering demonstrator 8. At this time, the observer can observe whether there is red light on the inner surface of the scattering demonstrator 8. At the same time, the blue scattered light beam emitting head 504 emits a blue light beam, and further the blue light beam is emitted to the scattering medium 801, and further emitted from the scattering medium 801 to the inner surface of the scattering demonstrator 8. At this time, the observer can judge the scattering performance of the light by observing the red and blue light beams on the inner surface of the scattering demonstrator 8, thereby completing the light beam scattering experiment.

[0047] Example 4, based on Example 1, Figure 17 It is given that a roller elevator 401 is fixed inside each of the support plates 4, and the roller elevator 401 is used to control the rotation of the roller elevator rod 402. The bottom of each roller elevator 401 is rotatably connected to the roller elevator rod 402. The roller elevator rod 402 can drive the roller fixing plate 403 to move up and down by rotating, thereby driving the roller 404 to move up and down. The bottom of each roller elevator rod 402 is frictionally connected to the roller fixing plate 403, and the roller fixing plate 403 is used to fix the roller 404. The inside of each roller fixing plate 403 is rotatably connected to the roller 404 through a rotating shaft;

[0048] Before using the present invention, the controller 102 controls the roller lift 401 to start working, so that the roller lift rod 402 rotates, so that the roller fixing plate 403 moves downward, and then drives the roller 404 to move downward, so that the entire device is supported. At this time, the staff can push the entire device to move. When the entire device is moved into place, the controller 102 controls the roller lift 401 to work in the reverse direction, so that the roller lift rod 402 works in the reverse direction, so that the roller fixing plate 403 moves upward. When the support plate 4 is close to the ground, the controller 102 controls the roller lift 401 to stop working, so that the entire device remains stable.

[0049] The working process of the present invention is as follows: before using the present invention, the controller 102 controls the roller lift 401 to start working, thereby causing the roller lift rod 402 to rotate, thereby causing the roller fixing plate 403 to move downward, thereby driving the roller 404 to move downward, thereby supporting the entire device. At this time, the staff can push the entire device to move. When the entire device is moved into place, the controller 102 controls the roller lift 401 to work in the reverse direction, thereby causing the roller lift rod 402 to work in the reverse direction, thereby causing the roller fixing plate 403 to move upward. When the support plate 4 is close to the ground, the controller 102 controls the roller lift 401 to stop working, thereby keeping the entire device in place. Stable, at this time the power supply 101 controls the multiple refractive medium clamping motors 734 to start working, thereby causing the refractive medium clamping plate 733 to rotate, and at this time the staff installs the refractive medium 735 on the upper surface of the refractive medium support plate 737, and at this time the controller 102 controls the multiple refractive medium clamping motors 734 to work in the reverse direction, thereby causing the refractive medium clamping plate 733 to clamp the refractive medium 735, and at this time the staff uses the handle 302 to tightly fit the box door 301 to the demonstration box 3, and at this time the controller 102 controls the exhaust motor 304 and the induced draft motor 901 to start working, thereby causing air to enter from the fresh air inlet 306, and further pass through the After being filtered by the high-efficiency filter membrane 902, the air enters the interior of the demonstration box 3. At this time, due to the action of the exhaust motor 304, the air inside the demonstration box 3 is extracted from the fresh air inlet 306, and further extracted to the outside of the demonstration box 3 through the exhaust machine 303, thereby ensuring that the interior of the demonstration box 3 is dust-free, thereby ensuring the demonstration effect. When the interior of the demonstration box 3 is dust-free, the controller 102 controls the light beam emitter 5 to work, thereby causing the reflected light beam emitter head 501, the refracted light beam emitter head 502, the red scattered light beam emitter head 503, and the blue scattered light beam emitter head 504 to emit light beams, thereby causing the red light beam to pass through the reflected light beam emitter head 501 and reach the reflector. 603, further reflected by the reflector 603 to the inner surface of the reflector demonstrator 6, at this time the controller 102 controls the reflector rotation motor 609 to work, thereby driving the reflector main gear 608 to rotate, and then driving the reflector gear 607 to rotate, thereby driving the reflector fixing rod 604 to rotate, thereby driving the reflector 603 and the reflection pointer 606 to rotate, so that the observer can observe the incident angle on the incident angle measuring device 602. At this time, due to the effect of the reflector 603, the reflection angle can be observed above the reflection angle measuring device 601, so that a comparison can be made, thereby completing the light reflection experiment. At the same time, the refracted light beam transmitter 502 emits a red light beam.The red light beam is further irradiated onto the refractive medium 735 through the refractive track 701, and after further refraction, reaches the inner surface of the refractive demonstrator 7. At this time, if a comparative experiment is required, the controller 102 controls the refractive medium replacement motor 731 to start working, thereby driving the refractive medium changer 703 to rotate, thereby driving the multiple refractive medium fixing rods 732 to rotate around the refractive medium changer 703. When the second refractive medium 735 rotates to the top of the refractive medium changer 703, the controller 102 controls the refractive medium replacement motor 731 to stop working, thereby conducting a refractive experiment again. At the same time, the red scattered light beam emitter 503 emits a red light beam, which reaches the scattering medium 801 and then passes through the scattering medium 801 to the inner surface of the scattering demonstrator 8. The observer can then observe whether there is red light on the inner surface of the scattering demonstrator 8. At the same time, the blue scattered light beam emitter 504 emits a blue light beam, which then reaches the scattering medium 801 and then passes from the scattering medium 801 to the inner surface of the scattering demonstrator 8. The observer can then determine the scattering properties of the light by observing the red and blue light beams on the inner surface of the scattering demonstrator 8, thereby completing the light beam scattering experiment.

[0050] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0051] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An optical experiment demonstration device for physics teaching, characterized by: The invention comprises an operating table (1), wherein a plurality of support rods (2) are provided at the bottom of the operating table (1), and a support plate (4) is provided at the bottom of each support rod (2); a power supply (101) is fixed on the upper surface of the operating table (1), a controller (102) is fixed on the front side of the power supply (101), a demonstration box (3) is provided on the right side of the power supply (101), a door (301) is rotatably connected to the upper part of the demonstration box (3) via a door rotating shaft (305), a transparent glass is fixed at the middle position of the door (301), a handle (302) is fixed on the front end of the upper surface of the door (301), a light beam emitter (5) is fixed on the inner surface of the left side of the demonstration box (3), a reflector (6) is provided on the right side of the light beam emitter (5), the reflector (6) is fixed to the upper surface of the operating table (1) via a reflector fixing rod (610), and a reflection angle measuring device (601) is fixed on the upper surface of the reflector (6). A reflector fixing rod (604) is provided inside the reflector demonstrator (6), a reflector (603) is fixed on the top of the reflector fixing rod (604), and the bottom of the reflector fixing rod (604) is fixed to the middle of the reflector demonstrator (6) through a bearing (605). A refraction track (701) is provided on the front side of the reflector demonstrator (6), and a refraction demonstrator (7) is provided on the right side of the refraction track (701). The refraction demonstrator (7) and the refraction track (701) are fixed to the upper surface of the operating table (1) through the refraction demonstrator fixing rod (704). A scattering demonstrator (8) is provided on the front side of the light beam transmitter (5), and the scattering demonstrator (8) is fixed to the upper surface of the operating table (1) through the scattering demonstrator fixing rod (802). An induced draft fan (9) is provided on the inner surface of the right side of the demonstration box (3), and the induced draft fan (9) is fixedly connected to the fresh air inlet (306) on the right side of the demonstration box (3) through a pipeline. An exhaust gas outlet (307) is provided on the inner surface of the left side of the demonstration box (3), an exhaust gas machine (303) is connected to the left side of the exhaust gas outlet (307) via a pipe, an exhaust gas motor (304) is provided at the bottom of the exhaust gas machine (303), and the exhaust gas motor (304) is fixed to the upper surface of the operating table (1); A reflection beam emitting head (501) is fixed to the rear side of the beam emitter (5), the reflector fixing rod (604) is located at one end of the extension line of the reflection beam emitting head (501), a reflection pointer (606) is fixed to the bottom end of the reflector fixing rod (604), and an incident angle measuring device (602) is also fixed to the upper surface of the interior of the reflection demonstrator (6), and the incident angle measuring device (602) and the reflector fixing rod (604) are concentric circles; A reflector rotating motor (609) is fixed at the bottom of the reflector demonstrator (6), the reflector rotating motor (609) is rotatably connected to a reflector main gear (608), the reflector main gear (608) is meshedly connected to a reflector gear (607), and the top of the reflector gear (607) is fixedly connected to the reflector fixing rod (604); A refractive beam emitting head (502) is fixed to the middle of the right side of the light beam emitter (5), a refractive angle measuring device (702) is fixed to the upper surface of the refractive demonstrator (7), a refractive medium changer (703) is provided between the refractive demonstrator (7) and the refractive track (701), a refractive medium changer (703) is rotatably connected to a refractive medium changer motor (731) on the right side of the refractive medium changer (703), and the refractive medium changer motor (731) is fixed to the upper surface of the operating table (1) via a changer motor fixing rod (736).

2. The optical experiment demonstration device for physics teaching according to claim 1, characterized in that: A plurality of refractive medium fixing rods (732) are fixed to the outer surface of the refractive medium changer (703), a refractive medium support plate (737) is fixed to the end of the refractive medium fixing rod (732), a refractive medium (735) is provided on the side of the refractive medium support plate (707) away from the refractive medium changer (703), and refractive medium clamping plates (733) are provided on the upper and lower sides of the refractive medium (735), the refractive medium clamping plates (733) are rotatably connected to a refractive medium clamping motor (734) via a rotating shaft, and the refractive medium clamping motor (734) is fixed to the side of the refractive medium support plate (737) close to the refractive medium replacement motor (731).

3. The optical experiment demonstration device for physics teaching according to claim 2, characterized in that: A red scattered light beam emitting head (503) is fixed to the front end of the right side of the light beam emitter (5), a scattering medium (801) is provided on the extension line of the red scattered light beam emitting head (503), and the scattering medium (801) is fixed to the upper surface of the scattering demonstrator (8) via a fixing plate.

4. The optical experiment demonstration device for physics teaching according to claim 3, characterized in that: A blue scattered light beam emitting head (504) is fixed at the front end of the light beam emitter (5), and the scattering medium (801) is also provided on an extension line of the blue scattered light beam emitting head (504).

5. The optical experiment demonstration device for physics teaching according to claim 4, characterized in that: The bottom of the induced draft fan (9) is rotatably connected to an induced draft motor (901), the induced draft motor (901) is fixed to the upper surface of the operating table (1), and a high-efficiency filter membrane (902) is fixed on the left side inside the induced draft fan (9).

6. The optical experiment demonstration device for physics teaching according to claim 5, characterized in that: A roller elevator (401) is fixed inside each support plate (4), the bottom of each roller elevator (401) is rotatably connected to a roller elevator rod (402), the bottom of each roller elevator rod (402) is frictionally connected to a roller fixing plate (403), and the inside of each roller fixing plate (403) is rotatably connected to a roller (404) via a rotating shaft.

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