Magnet characteristic teaching instrument utilizing magnet coupling transmission

Abstract

The utility model relates to the technical field of teaching appliances, and discloses a magnet characteristic teaching instrument utilizing magnet coupling transmission, which comprises a base, a first support, a second support, a handle, a driving shaft, a driven shaft, a driving magnet group wheel and a driven magnet group wheel, one end of the driving shaft is connected with the driving magnet group wheel, and the other end of the driving shaft is fixedly connected with the handle. The driving shaft is controlled to rotate on the first support through the handle to drive the driving magnet set wheel to rotate, one end of the driven shaft is rotationally connected with the driven magnet set wheel, the driven shaft is erected on the second support, and the driving magnet set wheel and the driven magnet set wheel are opposite in magnetism. And the magnetic surfaces of the driving magnet group wheel and the driven magnet group wheel are oppositely arranged and keep a certain distance. The magnet characteristic teaching instrument provided by the utility model can be used for teaching demonstration of teachers, can vividly demonstrate related characteristics of magnets and magnetic fields, stimulates learning interests of students, enlightens the students to think and guides the students to explore practical application scenes of the magnetic field characteristics.

Description

Technical Field

[0001] This utility model relates to the field of teaching aids technology, specifically a teaching instrument that utilizes the magnetic characteristics of magnetic coupling transmission. Background Technology

[0002] Teaching aids are a collective term for all kinds of tools and implements used by teachers to help students understand teaching content more intuitively and vividly. They help teachers conduct teaching more engagingly, stimulate students' interest, and promote knowledge transfer and improved learning outcomes. Types of teaching aids include, but are not limited to: physical teaching aids (such as models and specimens), visual teaching aids (such as pictures and charts), sound teaching aids (such as music and recordings), video teaching aids (such as instructional videos and animations), multimedia teaching aids (such as interactive whiteboards and software), educational games, and educational software. These teaching aids enrich teaching content and improve teaching effectiveness in the classroom.

[0003] The textbook includes content on "Playing with Magnets," but lacks corresponding teaching aids. This prevents the abstract properties of magnets from being presented concretely to students, hindering vivid and engaging teaching and preventing students from gaining a deeper understanding of magnet properties. While other forms of teaching aids exist, such as multimedia equipment, they are relatively expensive and difficult to promote on a large scale. Therefore, there is a need to design a teaching aid that can vividly demonstrate the properties of magnets and magnetic fields, while also being inexpensive and suitable for widespread adoption. Utility Model Content

[0004] To overcome the problems existing in related technologies, this utility model provides a teaching instrument for magnet characteristics using magnetic coupling transmission; it can be used by teachers for teaching demonstrations, vividly demonstrating the characteristics of magnets and magnetic fields, stimulating students' learning interest, inspiring students' thinking, and guiding students to explore practical application scenarios of magnetic field characteristics.

[0005] The technical solution adopted by this utility model is as follows: a magnetic characteristic teaching instrument that utilizes magnetic coupling transmission, including a base, a first bracket, a second bracket, a handle, a drive shaft, a driven shaft, a drive magnet wheel assembly, and a driven magnet wheel assembly, wherein the first bracket and the second bracket are disposed on the base;

[0006] The drive shaft is mounted on the first bracket, with one end connected to the drive magnet wheel assembly and the other end fixedly connected to the handle, so that the handle controls the drive shaft to rotate on the first bracket, thereby driving the drive magnet wheel assembly to rotate.

[0007] The driven shaft is mounted on the second bracket, and one end is rotatably connected to the driven magnet assembly wheel.

[0008] The magnetic sides of the active magnet wheel and the driven magnet wheel are arranged opposite each other and maintained at a certain distance.

[0009] Furthermore, the magnetic surfaces of the active magnet wheel and the driven magnet wheel are parallel to each other, the central axes of the active magnet wheel and the driven magnet wheel are on the same horizontal straight line, and the magnetic properties of the active magnet wheel and the driven magnet wheel are opposite.

[0010] Furthermore, the distance between the active magnet wheel and the driven magnet wheel can be adjusted.

[0011] Furthermore, a torsion cap is connected to the end of the driven shaft away from the driven magnet wheel. The torsion cap and the driven magnet wheel are located at the two ends of the second bracket, respectively. The torsion cap is used to adjust the distance between the driven magnet wheel and the active magnet wheel.

[0012] Furthermore, the active magnet wheel and the driven magnet wheel are turntables with the same diameter.

[0013] Furthermore, the active magnet wheel and the driven magnet wheel are provided with several magnetic holes along the circumference, and magnets are embedded in the magnetic holes. The magnets embedded in the active magnet wheel and the driven magnet wheel have opposite magnetic properties.

[0014] Furthermore, there are 8 magnetic holes, with each pair of magnetic holes spaced 45 degrees apart from the center of the turntable.

[0015] Furthermore, the distance between the magnetic hole and the center of the turntable is 30-45mm.

[0016] Furthermore, the magnet characteristic teaching instrument also includes a protective plate, which is disposed on the side of the turntable where the magnetic hole is opened, and is detachably connected to the turntable.

[0017] Furthermore, the active magnet wheel and the driven magnet wheel are transparent organic glass plates with a diameter of 80mm-100mm and a thickness of 10-20mm.

[0018] This invention, a teaching device utilizing the magnetic properties of magnets through magnetic coupling transmission, offers the following technical advantages: By suspending two sets of magnets with opposite magnetic properties close together, allowing them to rotate freely, with their magnetic sides facing each other, an attractive force and torque are generated between them. Rotating the handle drives the drive shaft, which is fixedly connected to the drive magnet set. The driven shaft is rotatably connected to the driven magnet set. The rotation of the drive magnet set, through the magnetic torque between the two, drives the driven magnet set without direct contact. This vividly demonstrates the phenomenon of non-contact transmission between the two magnet sets, concretizing the abstract physical properties of magnets such as repulsion between like poles, attraction between opposite poles, torque, and magnetic fields. This helps students better grasp related knowledge, stimulates their learning interest, inspires them to think about the properties of magnetic fields, and guides them to explore practical applications of magnetic field properties.

[0019] Other features and advantages disclosed in this utility model will be described in detail in the following detailed description section. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of a teaching instrument that utilizes the characteristics of magnetic coupling transmission according to an exemplary embodiment.

[0022] Figure 2 This is a schematic diagram of the overall structure of the active magnet wheel of a teaching instrument that utilizes the characteristics of magnetic coupling transmission according to an exemplary embodiment.

[0023] Figure 3 This is a sample diagram illustrated according to an exemplary embodiment.

[0024] Reference numerals: 10, base; 20, first bracket; 30, second bracket; 40, handle; 50, drive shaft; 60, driven shaft; 70, drive magnet wheel; 80, driven magnet wheel; 90, torsion cap; 100, magnetic hole; 110, fixing hole. Detailed Implementation

[0025] The specific embodiments disclosed herein will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this disclosure.

[0026] like Figure 1The image shows a disclosed exemplary embodiment of this utility model. This utility model utilizes a magnetic characteristic teaching instrument with magnetic coupling transmission, comprising a base 10, a first support 20, a second support 30, a handle 40, a drive shaft 50, a driven shaft 60, a drive magnet wheel 70, and a driven magnet wheel 80. The first support 20 and the second support 30 are mounted on the base 10. The drive shaft 50 is mounted on the first support 20, with one end connected to the drive magnet wheel 70 and the other end fixedly connected to the handle 40, so that the handle 40 controls the drive shaft 50 to rotate on the first support 20, driving the drive magnet wheel 70 to rotate. The driven shaft 60 is mounted on the second support 30, with one end rotatably connected to the driven magnet wheel 80. The magnetic surfaces of the drive magnet wheel 70 and the driven magnet wheel 80 are arranged opposite each other and maintained at a certain distance.

[0027] By mounting the active magnet wheel 70 and the driven magnet wheel 80 on the first support 20 and the second support 30, they can rotate freely. Turning the handle 40 drives the drive shaft 50, which in turn drives the active magnet wheel 70. The magnetic surfaces of the active magnet wheel 70 and the driven magnet wheel 80 are positioned close to each other, creating mutual attraction or repulsion, and generating torque. The rotation of the active magnet wheel 70, through the mutual attraction or repulsion torque between the two wheels, drives the driven magnet wheel 80 to rotate. This vividly demonstrates the physical principles of like poles repelling and unlike poles attracting, as well as the interaction of magnetic fields and forces between two magnets. The contactless transmission between the two wheels adds an element of fun, stimulating student interest and guiding them to think about and explore relevant applications of magnet properties.

[0028] For example, the magnetic surfaces of the active magnet wheel 70 and the driven magnet wheel 80 are parallel to each other, their central axes are on the same horizontal line, and their magnetic properties are opposite. The distance between the active magnet wheel 70 and the driven magnet wheel 80 is adjustable.

[0029] Specifically, a torsion cap 90 is connected to the end of the driven shaft 60 away from the driven magnet assembly wheel 80. The torsion cap 90 and the driven magnet assembly wheel 80 are located at opposite ends of the second bracket 30. The torsion cap 90 is used to adjust the distance between the driven magnet assembly wheel 80 and the driving magnet assembly wheel 70. When the torsion cap 90 is rotated, the driven magnet assembly wheel 80 moves closer to the driving magnet assembly wheel 70.

[0030] The magnetic surfaces of the two magnet wheels are parallel to each other, and their central axes are on the same horizontal line. When the distance between the magnet wheels is the same, the torque between them is greater, and the direction of the force is parallel to the horizontal direction, which can more intuitively demonstrate the rotation of the two magnet wheels and eliminate other influencing factors. Preferably, in this embodiment, the magnets on the two magnet wheels have opposite magnetisms and there is a mutual attraction force between them. In order to demonstrate that the forces generated between the two magnet wheels are different when the distance between them is different, the distance between the two magnet wheels of this utility model magnet characteristic teaching instrument is dynamically adjustable. A torsion cap 90 is provided at one end of the driven shaft 60. The torsion cap 90 and the driven magnet wheel 80 are respectively located at both ends of the second bracket 30. The driven shaft 60 is rotatably connected to the second bracket 30. Rotating the torsion cap 90, the driven shaft 60 moves towards the direction of the driving shaft 50, thereby driving the driven magnet wheel 80 connected to the other end to move closer to the driving magnet wheel 70. This structural design allows for arbitrary adjustment of the distance between the two magnet wheels. By demonstrating the different rotational speeds of the two magnet wheels at different distances, it illustrates the phenomenon that the force generated by the magnet wheels varies with distance. Experiments show that the closer the distance, the greater the torque; the farther the distance, the smaller the torque. However, regardless of the torque, when the driven magnet wheel is locked, the right-hand driving magnet wheel can continue to rotate without damaging any part of the structure. This utility model, utilizing the magnetic characteristics of magnet coupling transmission, provides a clear direction for experiments on contactless transmission. The demonstrated principle can be applied to machinery involving power and load; when the load is exceeded, the drive system is protected, and the transmission mechanism is not damaged. By adjusting the distance, the load force can be adjusted without changing the speed.

[0031] For example, such as Figure 1 , Figure 2 As shown in the exemplary embodiment disclosed in this utility model, the active magnet wheel 70 and the driven magnet wheel 80 are turntables with the same diameter. The active magnet wheel 70 and the driven magnet wheel 80 are provided with several magnetic holes 100 along the circumference, and magnets are embedded in the magnetic holes 100. The magnets embedded in the active magnet wheel 70 and the driven magnet wheel 80 have opposite magnetic properties.

[0032] Specifically, there are eight magnetic holes 100, with each pair of magnetic holes 100 spaced 45 degrees apart from the center of the turntable. The distance between the magnetic holes 100 and the center of the turntable is 30-45mm. Preferably, the active magnet wheel 70 and the driven magnet wheel 80 are transparent acrylic sheets with a diameter of 80mm-100mm and a thickness of 10-20mm.

[0033] In the exemplary embodiment disclosed in this utility model, the active magnet wheel 70 and the driven magnet wheel 80 are turntables with the same diameter and thickness, each with eight magnetic holes 100, each containing a magnet. The magnetic holes 100 are evenly distributed on one side of the turntable, with every two magnetic holes 100 spaced 45 degrees apart from the center of the turntable. The distance from the magnetic hole 100 to the center of the turntable is 32mm. By evenly distributing eight magnetic holes 100 on one side of the magnet wheel in a point-to-surface manner, and embedding magnets in the magnetic holes 100, one side of the magnet wheel becomes magnetic, resulting in a simple and ingenious structure. Preferably, the active magnet wheel 70 and the driven magnet wheel 80 are transparent acrylic sheets with a diameter of 80mm and a thickness of 20mm. The magnets are embedded in the transparent acrylic sheet, and by rotating the glass sheet, the movement trajectory of the magnets within the glass sheet can be clearly observed, providing a more vivid demonstration of the physical properties of the magnets.

[0034] For example, the magnetic characteristic teaching instrument of this utility model also includes a protective plate (not shown in the figure), which is disposed on the side of the turntable where the magnetic hole 100 is opened, and is detachably connected to the turntable.

[0035] like Figure 1 , Figure 2 As shown, to prevent the embedded magnets from loosening and flying out during the rotation of the magnet assembly wheel, this utility model magnet characteristic teaching instrument also includes a protective plate (not shown in the figure). The protective plate (not shown in the figure) is provided with eight fixing posts, and eight fixing holes 110 are provided at corresponding positions on the side of the magnet assembly wheel where the magnetic hole 100 is located. The fixing posts are threadedly connected to the fixing holes 110, thus fixing the protective plate to the turntable. The protective plate covers the magnetic hole 100, preventing it from loosening and flying out of the turntable.

[0036] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0037] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0038] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A magnetic teaching instrument utilizing the magnetic coupling transmission characteristic, characterized in that, It includes a base, a first bracket, a second bracket, a handle, a drive shaft, a driven shaft, a drive magnet wheel assembly, and a driven magnet wheel assembly, with the first bracket and the second bracket mounted on the base; The drive shaft is mounted on the first bracket, with one end connected to the drive magnet wheel assembly and the other end fixedly connected to the handle, so that the handle controls the drive shaft to rotate on the first bracket, thereby driving the drive magnet wheel assembly to rotate. The driven shaft is mounted on the second bracket, and one end is rotatably connected to the driven magnet assembly wheel. The magnetic sides of the active magnet wheel and the driven magnet wheel are arranged opposite each other and maintained at a certain distance.

2. The magnet characteristic teaching instrument according to claim 1, characterized in that, The magnetic surfaces of the active magnet wheel and the driven magnet wheel are parallel to each other, the central axes of the active magnet wheel and the driven magnet wheel are on the same horizontal straight line, and the magnetic properties of the active magnet wheel and the driven magnet wheel are opposite.

3. The magnet characteristic teaching instrument according to claim 1, characterized in that, The distance between the active magnet wheel and the driven magnet wheel can be adjusted.

4. The magnet characteristic teaching instrument according to claim 3, characterized in that, A torsion cap is connected to the end of the driven shaft away from the driven magnet wheel assembly. The torsion cap and the driven magnet wheel assembly are located at opposite ends of the second bracket. The torsion cap is used to adjust the distance between the driven magnet wheel assembly and the driving magnet wheel assembly.

5. The magnet characteristic teaching instrument according to claim 1, characterized in that, The active magnet wheel and the driven magnet wheel are turntables with the same diameter.

6. The magnet characteristic teaching instrument according to claim 5, characterized in that, The active magnet wheel and the driven magnet wheel are provided with several magnetic holes along the circumference, and magnets are embedded in the magnetic holes. The magnets embedded in the active magnet wheel and the driven magnet wheel have opposite magnetic properties.

7. The magnet characteristic teaching instrument according to claim 6, characterized in that, There are 8 magnetic holes, and every two magnetic holes are spaced 45 degrees apart from the center of the turntable.

8. The magnet characteristic teaching instrument according to claim 6, characterized in that, The distance between the magnetic hole and the center of the turntable is 30-45mm.

9. The magnet characteristic teaching instrument according to claim 6, characterized in that, The magnet characteristic teaching instrument also includes a protective plate, which is disposed on the side of the turntable where the magnetic hole is opened, and is detachably connected to the turntable.

10. The magnet characteristic teaching instrument according to claim 5, characterized in that, The active magnet wheel and the driven magnet wheel are transparent organic glass plates with a diameter of 80mm-100mm and a thickness of 10-20mm.

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