Demonstrator for magnet falling in pipe

Abstract

The utility model discloses an in-pipe falling magnet demonstrator which comprises an in-pipe falling magnet upper frame assembly, a simultaneous release assembly and an in-pipe falling magnet base assembly. The in-pipe falling magnet upper frame assembly is mounted on the in-pipe falling magnet base assembly, and the in-pipe falling magnet upper frame assembly is used for displaying an experiment effect; the simultaneous releasing assembly is installed on the in-pipe magnet falling upper frame assembly and used for releasing magnets in the in-pipe magnet falling upper frame assembly at the same time. According to the device, magnets in pipes made of different materials can be released at the same time through the simultaneous release assembly, a distinct comparison effect is formed, and therefore demonstration of the Faraday electromagnetic induction phenomenon is more visual and obvious; the requirements of different teaching materials on Faraday's law of electromagnetic induction experiments can be met by combining different pipes.

Description

Technical Field

[0001] The utility model relates to the field of physics education, and particularly to a magnetic falling-in-tube demonstrator. Background Art

[0002] In physics teaching, Faraday's electromagnetic induction phenomenon is one of the important teaching contents. Traditional teaching methods and experimental equipment often have some limitations. For example, the experimental phenomenon is not obvious enough, and it is difficult to intuitively display the dynamic process of electromagnetic induction, which to a certain extent affects the teaching effect and students' learning interest.

[0003] The existing magnetic falling-in-tube demonstrators are relatively single in terms of material and design, and it is difficult to meet different teaching materials and teaching needs. For example, some devices may only use pipes of a single material, or lack innovation in experimental design, resulting in an unintuitive and vivid display of experimental phenomena. In addition, some devices may not be convenient to operate, and the magnets need to be released manually one by one, which not only increases the complexity of the experiment but also reduces the experimental effect. Content of the Utility Model

[0004] The purpose of the utility model is to provide a magnetic falling-in-tube demonstrator, which improves the intuitiveness and teaching effect of the experiment on Faraday's law of electromagnetic induction, and at the same time simplifies the operation process, enabling teachers to conduct experimental demonstrations more conveniently.

[0005] To solve the above technical problems, the utility model provides a magnetic falling-in-tube demonstrator, which includes a magnetic falling-in-tube upper frame assembly, a simultaneous release assembly, and a magnetic falling-in-tube base assembly;

[0006] The magnetic falling-in-tube upper frame assembly is installed on the magnetic falling-in-tube base assembly, and the magnetic falling-in-tube upper frame assembly is used to display the experimental process;

[0007] The simultaneous release assembly is installed on the magnetic falling-in-tube upper frame assembly, and the simultaneous release assembly is used to simultaneously release the magnets in the magnetic falling-in-tube upper frame assembly.

[0008] Optionally, the magnetic falling-in-tube upper frame assembly includes a plurality of aluminum tubes, copper tubes, acrylic tube components, and frame components; the plurality of aluminum tubes, the copper tubes, and the acrylic tube components are arranged in parallel and uniformly installed on the frame components.

[0009] Optionally, the plurality of aluminum tubes include non-grooved aluminum tubes, horizontally grooved aluminum tubes, and two symmetrically vertically grooved aluminum tubes.

[0010] Optionally, the copper tubes are set as non-open copper tubes.

[0011] Optionally, the acrylic tube components include an acrylic tube and a plurality of coils; the plurality of coils are evenly spaced and installed on the acrylic tube.

[0012] Optionally, card slots are provided at the same height on the multiple aluminum tubes, the copper tubes, and the acrylic tubes, and the simultaneous release assembly is installed in the card slots.

[0013] Optionally, the frame member includes an outer frame, an upper bracket, and a lower bracket; the upper bracket and the lower bracket are both installed in the outer frame, and a plurality of mounting holes are evenly and correspondingly provided on the upper bracket and the lower bracket. One end of the multiple aluminum tubes, the copper tubes, and the acrylic tube members is installed on the upper bracket through the multiple mounting holes, and the other end is installed on the lower bracket.

[0014] Optionally, the frame member further includes a tube head bracket and a nut; the tube head bracket is installed at the bottom of the outer frame, a threaded hole is provided on the tube head bracket, and the nut connects the outer frame to the in-tube magnetic drop base assembly through the threaded hole.

[0015] Optionally, the in-tube magnetic drop base assembly includes a base, a base seal plate, a magnetic drop panel, and a buffer pad; the base seal plate is installed in the base, the magnetic drop panel is installed on the base, above the base seal plate; the outer frame is connected to the magnetic drop panel through the nut; the buffer pad is provided on the magnetic drop panel.

[0016] Optionally, the simultaneous release assembly is made of a non-magnetic material.

[0017] Compared with the prior art, the present utility model has at least the following beneficial effects:

[0018] By adding a simultaneous release assembly, the present utility model enables the magnets in the tubes of different materials in the experiment to be released simultaneously, forming a distinct contrast effect, thereby making the demonstration of the Faraday electromagnetic induction phenomenon more intuitive and obvious; the in-tube magnetic drop upper frame assembly can meet the requirements of different textbooks for the experiment of the Faraday electromagnetic induction law by combining different tubes; the in-tube magnetic drop base assembly enhances the stability of the demonstrator during the experiment, reduces accidents caused by improper operation, and ensures the safety of teaching experiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of an in-tube magnetic drop demonstrator in an embodiment of the present utility model;

[0020] Figure 2 is a schematic structural diagram of the in-tube magnetic drop demonstrator in an embodiment of the present utility model without showing the outer frame.

[0021] Attached drawing reference numerals: 1. Outer frame; 2. Upper support; 3. Lower support; 4. Aluminum tube without slots; 5. Aluminum tube with horizontal slots; 6. Aluminum tube with two symmetric vertical slots; 7. Copper tube without openings; 8. Acrylic tube; 9. Coil; 10. Card slot; 11. Tube head support; 12. Base; 13. Base sealing plate; 14. Degaussing panel. Detailed implementation mode

[0022] The following will describe in more detail a tube-internal degaussing demonstrator of the present utility model in conjunction with schematic diagrams, in which the preferred embodiments of the present utility model are shown. It should be understood that those skilled in the art can modify the present utility model described herein while still achieving the advantageous effects of the present utility model. Therefore, the following description should be understood as a broad guidance for those skilled in the art and not as a limitation to the present utility model.

[0023] In the following paragraphs, the present utility model will be described more specifically by way of example with reference to the accompanying drawings. According to the following description, the advantages and features of the present utility model will be clearer. It should be noted that the drawings are all in a very simplified form and use non-precise scales, only for the purpose of conveniently and clearly assisting in explaining the embodiments of the present utility model.

[0024] As Figures 1 to 2 shown, an embodiment of the present utility model provides a tube-internal degaussing demonstrator, which includes a tube-internal degaussing upper frame assembly, a simultaneous release assembly, and a tube-internal degaussing base assembly.

[0025] Specifically, the tube-internal degaussing upper frame assembly is installed on the tube-internal degaussing base assembly, and the tube-internal degaussing upper frame assembly is used to display the experimental process; the simultaneous release assembly is installed on the tube-internal degaussing upper frame assembly, and the simultaneous release assembly (not shown in the figure) is used to simultaneously release the magnets in the tube-internal degaussing upper frame assembly; the base assembly provides stable support for the entire demonstrator to ensure the stability of the demonstrator during operation.

[0026] In this embodiment, the tube-internal degaussing upper frame assembly includes a plurality of aluminum tubes, copper tubes, acrylic tube components, and frame components. The plurality of aluminum tubes, the copper tubes, and the acrylic tube components are arranged in parallel and uniformly installed on the frame components. Since aluminum is a non-magnetic metal, the fall of the magnet in the plurality of aluminum tubes will not be affected by the magnetic field and can be used as part of a comparative experiment. The copper tube, as a good electrical conductor, can be used to demonstrate the electromagnetic induction phenomenon. Since acrylic is a non-magnetic material, it will not affect the fall of the magnet and can be used as part of a comparative experiment.

[0027] In a preferred embodiment, the multiple aluminum tubes include a non-grooved aluminum tube 4, a horizontally-grooved aluminum tube 5, and a vertically-grooved aluminum tube 6 with two symmetric grooves. The non-grooved aluminum tube 4 is used to show the movement of the magnet in the aluminum tube without external force. The horizontally-grooved aluminum tube 5 allows the magnet to contact the inner wall of the aluminum tube during the falling process, which can show the movement of the magnet under the action of a lateral force (i.e., a non-vertical force), and demonstrate how this force affects the falling trajectory of the magnet. The vertically-grooved aluminum tube 6 with two symmetric grooves allows the magnet to contact the vertical grooves during the falling process, preventing the magnet from deflecting during the falling process, which can show the stability of the magnet when it is under the action of a vertical force, and whether the vertical grooves will affect the falling path of the magnet, so as to explore the influence of the magnetic field on the movement of the magnet.

[0028] The copper tube used is a non-open copper tube 7. When the magnet falls in the copper tube, eddy currents will be generated in the copper tube, and these eddy currents will generate a force opposite to the falling direction of the magnet, that is, electromagnetic damping. By comparing with tubes of other materials (such as the multiple aluminum tubes, the acrylic tube 8), that is, comparing the falling speeds and behaviors of the magnet in tubes of different materials, the influence of different materials on the electromagnetic induction phenomenon can be shown more clearly.

[0029] The acrylic tube 8 component includes an acrylic tube 8 and multiple coils 9. The multiple coils 9 are evenly installed on the acrylic tube 8, and multiple LED lights are connected in series on the multiple coils 9. The acrylic tube 8 provides a transparent pipeline, so that the observer can clearly see the movement of the magnet inside the tube. Since the magnet cuts the magnetic field lines to generate electromagnetic induction when it falls through the coil, a current is generated in the coil. This current flows through the multiple LED lights connected in series, causing the multiple LED lights to emit light; the electromagnetic induction phenomenon is intuitively shown through the on-off and brightness changes of the multiple LED lights.

[0030] In addition, slots 10 are provided at the same height on the multiple aluminum tubes, the copper tube, and the acrylic tube 8. The simultaneous release component is installed in the slots 10, so that the time point of magnet release can be accurately controlled, which is convenient for precise scientific experiments and demonstrations.

[0031] In this embodiment, the frame component includes an outer frame 1, an upper bracket 2, and a lower bracket 3. The outer frame 1 is formed by bending stainless steel, providing a structural basis for the demonstrator. The upper bracket 2 and the lower bracket 3 are both installed in the outer frame 1. The upper bracket 2 and the lower bracket 3 cooperate to keep the tubes of different materials vertical and stable. Multiple mounting holes are evenly and correspondingly provided on the upper bracket 2 and the lower bracket 3. One end of the multiple aluminum tubes, the copper tube, and the acrylic tube 8 component is installed on the upper bracket 2 through the multiple mounting holes, and the other end is installed on the lower bracket 3, so as to facilitate accurate experimental observation and comparison.

[0032] The frame component further includes a pipe head bracket 11 and a nut. The pipe head bracket 11 is installed at the bottom of the outer frame 1. A threaded hole is provided on the pipe head bracket 11. The nut connects the outer frame 1 to the in-pipe magnetic decay base assembly through the threaded hole, preventing displacement or loosening between the outer frame 1 and the in-pipe magnetic decay base assembly during use.

[0033] The in-pipe magnetic decay base assembly includes a base 12, a base sealing plate 13, and a magnetic decay panel 14. The base sealing plate 13 is installed in the base 12, which can enhance the supporting force of the base 12. The magnetic decay panel 14 is installed on the base 12, above the base sealing plate 13. The outer frame 1 is connected to the magnetic decay panel 14 through the nut. The base 12 is integrally formed by ABS. The base sealing plate 13 is bent from a 2mm galvanized steel plate with an epoxy coating on the surface. The magnetic decay panel 14 is made of a 2mm galvanized plate with an epoxy coating on the surface.

[0034] In addition, the in-pipe magnetic decay base assembly further includes a buffer pad (not shown in the figure). The buffer pad is provided on the magnetic decay panel 14 and is used to buffer the impact force generated when the magnet falls, preventing the magnet from directly hitting the magnetic decay panel 14, thereby reducing physical damage to the demonstrator.

[0035] The thickness of the simultaneous release component matches the thickness of the card slot 10 and is made of non-magnetic material, so that the simultaneous release component will not interfere with the electromagnetic induction phenomenon in the demonstrator, ensuring the accuracy of the experimental results.

[0036] This device can also add or replace pipes made of other materials according to needs to meet the requirements of different teaching materials for experimental demonstrations.

[0037] When demonstrating the Faraday electromagnetic induction law experiment with the demonstrator, first install the simultaneous release device in the card slot 10 of each pipe to ensure that the magnet is fixed in place and will not fall in advance.

[0038] Then place magnets with the same magnetic strength into the pipes of different materials of the demonstrator to ensure the consistency of experimental conditions.

[0039] Then pull out the simultaneous release device from the card slot 10 to release each magnet in different pipes simultaneously, and start to fall under the action of gravity.

[0040] Since a pipe made of magnetic material (such as the copper pipe) will generate an electromagnetic induction phenomenon when the magnet falls, which will hinder the fall of the magnet and slow down its speed. While the magnets in the pipes made of non-magnetic materials (such as the multiple aluminum pipes and the acrylic pipe 8) are mainly affected by gravity and fall faster.

[0041] As the magnets fall in their respective pipes, it can be observed that due to the influence of the electromagnetic induction effect, the falling speed of the magnets in the pipes made of magnetic materials is significantly slower than that of the magnets in the pipes made of non-magnetic materials. This speed difference causes the magnets to reach the demagnetizing panel 14 in different orders and adsorb on the demagnetizing panel 14.

[0042] In summary, the pipes made of multiple materials such as the plurality of aluminum pipes, the copper pipes, and the acrylic pipes 8 provide different experimental conditions. Through the speed of the magnets falling in different pipes, the electromagnetic induction phenomenon when the magnets fall in the pipes made of different materials can be visually observed, facilitating observation and teaching. The design of the simultaneous release component simplifies the experimental operation, enabling teachers to easily conduct experimental demonstrations without releasing the magnets one by one. In addition, the design of the demonstrator allows adding or replacing pipes as needed, improving the flexibility and expandability of the experiment.

[0043] Obviously, those skilled in the art can make various changes and modifications to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model also intends to include these changes and modifications.

Claims

1. A magnetic drop demonstration device inside a tube, characterized in that, It includes an in-tube magnetic-drop upper frame assembly, a simultaneous release assembly, and an in-tube magnetic-drop base assembly; The in-tube magnetic-drop upper frame assembly is installed on the in-tube magnetic-drop base assembly, and the in-tube magnetic-drop upper frame assembly is used to display the experimental process; The simultaneous release assembly is installed on the in-tube magnetic-drop upper frame assembly, and the simultaneous release assembly is used to simultaneously release the magnets in the in-tube magnetic-drop upper frame assembly.

2. The demonstrator according to claim 1, characterized in that, The in-tube magnetic-drop upper frame assembly includes a plurality of aluminum tubes, copper tubes, acrylic tube components, and frame components; the plurality of aluminum tubes, the copper tubes, and the acrylic tube components are arranged in parallel and evenly installed on the frame components.

3. The demonstrator according to claim 2, wherein, The plurality of aluminum tubes include non-grooved aluminum tubes, horizontally grooved aluminum tubes, and symmetrically vertically grooved aluminum tubes.

4. The demonstrator according to claim 2, characterized in that The copper tubes are set as non-open copper tubes.

5. The demonstrator according to claim 2, characterized in that, The acrylic tube components include acrylic tubes and a plurality of coils; the plurality of coils are evenly spaced and installed on the acrylic tubes.

6. The demonstrator according to claim 5, characterized in that, At the same height on the plurality of aluminum tubes, the copper tubes, and the acrylic tubes, card slots are provided, and the simultaneous release assembly is installed in the card slots.

7. The demonstrator according to claim 2, characterized in that, The frame components include an outer frame, an upper bracket, and a lower bracket; the upper bracket and the lower bracket are both installed in the outer frame, and a plurality of mounting holes are evenly and correspondingly provided on the upper bracket and the lower bracket. One end of the plurality of aluminum tubes, the copper tubes, and the acrylic tube components is installed on the upper bracket through the plurality of mounting holes, and the other end is installed on the lower bracket.

8. The demonstrator according to claim 7, characterized in that, The frame components further include a tube head bracket and a nut; the tube head bracket is installed at the bottom of the outer frame, a threaded hole is provided on the tube head bracket, and the nut connects the outer frame to the in-tube magnetic-drop base assembly through the threaded hole.

9. The demonstrator according to claim 8, wherein, The in-tube magnetic-drop base assembly includes a base, a base cover plate, a magnetic-drop panel, and a buffer pad; the base cover plate is installed in the base, the magnetic-drop panel is installed on the base, above the base cover plate; the outer frame is connected to the magnetic-drop panel through the nut; the buffer pad is provided on the magnetic-drop panel.

10. The demonstrator according to claim 1, characterized in that, The simultaneous release assembly is made of non-magnetic material.

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