Magnetic field simulation device for physical experiment
By combining a support table and multiple mechanism designs, the problems of uneven magnetic material distribution and long recovery time were solved, enabling efficient observation and convenient operation of the magnetic field simulation device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 李心蕊
- Filing Date
- 2026-04-02
- Publication Date
- 2026-05-26
AI Technical Summary
Existing magnetic field simulation devices, when the magnetic field changes slightly, suffer from friction or mutual obstruction between the magnetic material and the contact surface, resulting in some magnetic material not being properly distributed, which affects the experimental observation results. Furthermore, a significant amount of time is required to restore the device after the experiment.
It adopts a combined design including a support table, adjustment mechanism, positioning mechanism, simulation mechanism, limit mechanism, scraping mechanism, linkage mechanism and vibration mechanism. The support plate is raised and lowered by an electric telescopic rod, the rack drives the driven gear to rotate, the turntable strikes the glass box, and the scraper scrapes the iron filings, so as to achieve uniform distribution and convenient removal of magnetic materials.
It improves the observation effect and flexibility of magnetic field simulation experiments, simplifies the restoration process of magnetic materials, and increases experimental efficiency and diversity.
Smart Images

Figure CN122090710A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of magnetic field simulation technology, specifically to a magnetic field simulation device for physical experiments. Background Technology
[0002] A magnetic field is a force field generated by an electric current or a magnet. The existence of a magnetic field is usually represented by magnetic field lines, which point from the north pole to the south pole. They affect the behavior and distribution of surrounding magnetic materials and charged particles. Magnetic field simulation experiments require the use of magnetic field simulation devices to conduct the corresponding experiments. The strength and direction of the magnetic field can be adjusted through different settings and configurations to change the magnetic field, and the changes are displayed through the distribution of magnetic materials. However, existing magnetic field simulation devices, when the magnetic field changes slightly, suffer from friction or mutual obstruction between the magnetic material and the contact surface, resulting in some magnetic material not being properly distributed, which affects the experimental observation results. Furthermore, after the experiment, a significant amount of time is required to restore the magnetic material, thus increasing work efficiency. Summary of the Invention
[0003] To address the shortcomings of existing technologies, this invention provides a magnetic field simulation device for physical experiments. This device solves the problems of existing magnetic field simulation devices where, when the magnetic field changes slightly, friction or mutual obstruction between the magnetic material and the contact surface prevents proper distribution of some magnetic materials, thus affecting the experimental observation results. Furthermore, it addresses the issue of the need to spend considerable time restoring the magnetic materials after the experiment, thereby increasing work efficiency.
[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: a magnetic field simulation device for physical experiments, including a support table, an adjustment mechanism is provided on the top of the support table, a positioning mechanism and a simulation mechanism are provided on the top of the adjustment mechanism, a limiting mechanism is provided on the top of the adjustment mechanism, a leveling mechanism is provided inside the limiting mechanism, a linkage mechanism is provided at one end of the limiting mechanism, and a vibration mechanism is provided at the bottom of the limiting mechanism. The adjustment mechanism includes an electric telescopic rod, the bottom of which is fixedly connected to the top of the support table. A support plate is fixedly connected to the output end of the electric telescopic rod. Two limiting plates are fixedly connected to the top of the support table. A limiting groove is provided on one side of the limiting plate. The two ends of the support plate are slidably connected to the inner wall of the support plate.
[0005] Preferably, the linkage mechanism includes a rack, the bottom of which is fixedly connected to the top of the support plate, a fixing block is fixedly connected to the inner side of the limiting plate, a rotating rod is rotatably connected to the inner wall of the fixing block, a driven gear is fixedly connected to the outer left side of the rotating rod, a movable groove is provided through the top of the fixing block, and one side of the rack is meshed with the outer side of the driven gear.
[0006] Preferably, the vibration mechanism includes two turntables, the inner wall of the turntables is fixedly connected to the outside of the rotating rod, two protrusions are fixedly connected to the outside of the turntables, and two through slots are formed at the bottom of the fixed blocks, the through slots being disposed inside the through slots.
[0007] Preferably, the limiting mechanism includes a glass box, which is disposed in the top groove of the fixing block. The top of the fixing block has two limiting grooves, and the two ends of the glass box are slidably connected to the inner wall of the limiting grooves.
[0008] Preferably, the leveling mechanism includes a movable block, two guide grooves are provided on the top of the glass box, the outer side of the movable block is slidably connected to the inner wall of the guide groove, a scraper is fixedly connected to the bottom of the movable block, and the two sides of the scraper are slidably connected to the inner wall of the glass box.
[0009] Preferably, the positioning mechanism includes a housing, the outer side of which is fixedly connected to the top of the support plate, a limiting block is slidably connected to the inner wall of the housing, a movable slider is fixedly connected to the top of the limiting block, a fixing groove is provided on the top of the housing, the outer side of the movable slider is slidably connected to the inner wall of the fixing groove, a spring is installed inside the housing, one end of the spring is fixedly connected to one side of the limiting block, and the other end of the spring is fixedly connected to the housing.
[0010] Preferably, the simulation mechanism includes a second sleeve, the outer side of which is fixedly connected to the top of the support plate, a box body is slidably connected to the inner wall of the second sleeve, connecting sliders are fixedly connected to both sides of the box body, and guide grooves are provided on both sides of the second sleeve, with the outer side of the connecting slider slidably connected to the inner wall of the guide groove.
[0011] Preferably, both the box body and the first sleeve are provided with permanent magnets inside, and one side of the limiting block is in contact with the permanent magnets.
[0012] Preferably, a camera is installed on the top of the limiting plate, the driven gear and the rack are both located inside the movable groove, and the outside of the turntable is in contact with the bottom of the glass box.
[0013] Working principle: When using this device, the electric telescopic rod can be activated to move the two ends of the support plate up and down along the inner wall of the support plate, thereby moving the positioning mechanism and the simulation mechanism closer to or further away from the glass box, thus simulating magnetic field changes. Then, the movable connecting slider moves along the inner wall of the guide groove, thereby moving the box body inside the second sleeve. The spring squeezes the limiting block, thereby fixing the position of the permanent magnet. In this way, the permanent magnet inside the box body moves, which makes it easy to simulate the changes in iron filings inside the top glass box at different distances between the two permanent magnets. Thus, the changes in magnetic field can be observed. By moving the slider along the inner wall of the fixed groove, the limiting block moves along the inner wall of the first sleeve, thereby compressing the spring and causing it to retract, so that the permanent magnet is no longer compressed, and the permanent magnet can be easily removed. In this way, by moving the box, the changes in iron filings inside the top glass box can be observed when a single permanent magnet moves, thus allowing for the observation of multiple magnetic fields. When the support plate moves up and down, it simultaneously drives the rack to move up and down. In this way, the interaction between the rack and the driven gear drives the driven gear to rotate. This causes the two ends of the rotating rod to rotate synchronously on the inner wall of the fixed block. This causes the two turntables to drive the external protrusions to strike the glass box on top. This causes the two ends of the glass box to vibrate slightly along the inner wall of the limiting groove, which facilitates better distribution of iron filings inside the glass box. Then, by moving the moving block along the inner wall of the guide groove, the scraper is driven to scrape the iron filings along the inner wall of the glass box, which is convenient for the next magnetic field simulation.
[0014] This invention provides a magnetic field simulation device for physics experiments. It has the following advantages: 1. This invention uses an electric telescopic rod to raise and lower the support plate, thereby bringing the permanent magnet inside the positioning mechanism and simulation mechanism closer to or further away from the glass box. Simultaneously, the rack drives the driven gear to rotate, which in turn drives the rotating rod to rotate the two turntables, causing the protrusions to strike the glass box on top. This causes the iron filings to vibrate and form different distribution states in conjunction with the magnetic field, making it easy to observe the changes of the iron filings in the magnetic field and vibrating the iron filings out of the gaps.
[0015] 2. This invention moves the connecting slider, causing the box to move inside the second sleeve. The spring compresses the limiting block, thus fixing the position of the permanent magnet. The movement of the permanent magnet inside the box facilitates the simulation of the changes in iron filings at different distances between the two permanent magnets. By moving the moving block, the scraper moves along the inner wall of the glass box to smooth the iron filings, which facilitates subsequent magnetic field simulations. It can simulate the influence of different magnetic field strengths and distances on the distribution of iron filings, helping researchers better understand the dynamic characteristics of magnetic fields. By smoothing the iron filings to a uniform state, subsequent magnetic field simulation experiments can be conducted more quickly.
[0016] 3. This invention allows the moving slider to move the limiting block along the inner wall of the first sleeve and compress the spring, thereby facilitating the removal of the permanent magnet. This allows observation of the changes in the magnetic field of a single permanent magnet as it moves, which in turn causes iron filings to change. This enables the experimenter to conduct different magnetic field experiments as needed and to replace the permanent magnet, thus improving the flexibility and diversity of the experiment. Attached Figure Description
[0017] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the support plate structure of the present invention; Figure 3 This is a schematic diagram of the limiting block structure of the present invention; Figure 4 This is a schematic diagram of the connecting slider structure of the present invention; Figure 5 This is a schematic diagram of the fixing block structure of the present invention; Figure 6 This is a schematic diagram of the driven gear structure of the present invention; Figure 7 This is a schematic diagram of the protrusion of the present invention; Figure 8 This is a schematic diagram of the scraper structure of the present invention.
[0018] The components include: 1. Support table; 2. Adjustment mechanism; 201. Electric telescopic rod; 202. Support plate; 203. Limiting groove; 204. Limiting plate; 3. Positioning mechanism; 301. Fixing groove; 302. Box 1; 303. Spring; 304. Limiting block; 305. Moving slider; 306. Permanent magnet; 4. Simulation mechanism; 401. Box 2; 402. Guide groove; 403. Connecting slider; 404. Box body; 5. Limiting mechanism; 501. Fixing block; 502. Limiting groove; 503. Glass box; 6. Linkage mechanism; 601. Driven gear; 602. Rack; 603. Rotating rod; 604. Movable groove; 7. Scraping mechanism; 701. Moving block; 702. Scraper; 703. Guide groove; 8. Vibration mechanism; 801. Turntable; 802. Protrusion; 803. Through groove; 9. Camera. Detailed Implementation
[0019] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0020] Please see the appendix Figure 1 and attached Figure 2 This invention provides a magnetic field simulation device for physical experiments, including a support table 1. The top of the support table 1 is provided with an adjustment mechanism 2, which is used to adjust the changes of iron filings at different distances and intensities. The top of the adjustment mechanism 2 is provided with a positioning mechanism 3 and a simulation mechanism 4, wherein the positioning mechanism 3 is used to fix the device during the simulation experiment, and the simulation mechanism 4 is used to simulate the magnetic field. The top of the adjustment mechanism 2 is provided with a limit mechanism 5, which is used to limit the movement range of the components. The limit mechanism 5 is provided with a leveling mechanism 7 inside, which is used to level the simulated iron filings. One end of the limit mechanism 5 is provided with a linkage mechanism 6, and the bottom of the limit mechanism 5 is provided with a vibration mechanism 8, wherein the linkage mechanism 6 is used to cooperate with the vibration mechanism 8 to operate synchronously. Please see the appendix Figure 1 and attached Figure 2The adjustment mechanism 2 includes an electric telescopic rod 201. The bottom of the electric telescopic rod 201 is fixedly connected to the top of the support table 1. The output end of the electric telescopic rod 201 is fixedly connected to a support plate 202. The electric telescopic rod 201 serves as a driving component to drive the support plate 202 to move up and down. Two limiting plates 204 are fixedly connected to the top of the support table 1. A limiting groove 203 is provided on one side of the limiting plate 204. The two ends of the support plate 202 are slidably connected to the inner wall of the support plate 202. When the support plate 202 moves, it cooperates with the limiting groove 203 to ensure the stability of the support plate 202 during movement.
[0021] Please see the appendix Figure 2 Appendix Figure 5 and attached Figure 6 The linkage mechanism 6 includes a rack 602, the bottom of which is fixedly connected to the top of the support plate 202. The rack 602 is used for transmission. A fixing block 501 is fixedly connected to the inner side of the limiting plate 204. A rotating rod 603 is rotatably connected to the inner wall of the fixing block 501. The rotating rod 603 is used to limit the driven gear 601. The driven gear 601 is fixedly connected to the outer left side of the rotating rod 603. A movable groove 604 is opened through the top of the fixing block 501. One side of the rack 602 is meshed with the outer side of the driven gear 601. The transmission action of the rack 602 causes the driven gear 601 to rotate. In conjunction with the action of the rotating rod 603, the driven gear 601 can rotate stably.
[0022] Please see the appendix Figure 1 Appendix Figure 5 Appendix Figure 6 and attached Figure 7 The vibration mechanism 8 includes two turntables 801. The inner wall of the turntable 801 is fixedly connected to the outside of the rotating rod 603. Two protrusions 802 are fixedly connected to the outside of the turntable 801. Two through slots 803 are formed at the bottom of the fixing block 501. The rotating rod 603 is used to drive the turntable 801 to rotate, and together with the action of the protrusions 802, it taps the bottom of the glass box 503. The limiting mechanism 5 includes a glass box 503, which is used for better observation experiments. The glass box 503 is set in the top groove of the fixing block 501. Two limiting slots 502 are formed at the top of the fixing block 501. The two ends of the glass box 503 are slidably connected to the inner wall of the limiting slots 502. The limiting groove 502 is used to ensure that the glass box 503 can shake in a directional position during vibration, preventing accidental movement from affecting the experimental results. A camera 9 is installed on the top of the limiting plate 204. The driven gear 601 and the rack 602 are both set inside the movable groove 604. The outside of the turntable 801 is in contact with the bottom of the glass box 503. The camera 9 is used to record and analyze experimental data more conveniently.
[0023] Please see the appendix Figure 1 Appendix Figure 5 and attached Figure 8 The leveling mechanism 7 includes a moving block 701. Two guide grooves 703 are provided on the top of the glass box 503. The outer side of the moving block 701 is slidably connected to the inner wall of the guide groove 703. Under the limitation of the guide groove 703, the moving block 701 can move in a specified direction. A scraper 702 is fixedly connected to the bottom of the moving block 701. The two sides of the scraper 702 are slidably connected to the inner wall of the glass box 503. The scraper 702 is used to level the iron filings inside the glass box 503.
[0024] Please see the appendix Figure 1 Appendix Figure 5 and attached Figure 8 The positioning mechanism 3 includes a housing 302, which is externally fixedly connected to the top of the support plate 202. A limiting block 304 is slidably connected to the inner wall of the housing 302. A movable slider 305 is fixedly connected to the top of the limiting block 304. The limiting block 304 is used to position the permanent magnet 306 to prevent the permanent magnet 306 from moving or deviating during the simulation experiment. A fixing groove 301 is provided on the top of the housing 302. The movable slider 305 is externally slidably connected to the inner wall of the fixing groove 301. A spring 303 is installed inside the housing 302. One end of the spring 303 is fixedly connected to one side of the limiting block 304, and the other end of the spring 303 is fixedly connected to the housing 302. The spring 303 is used to compress the limiting block 304. By pulling the movable slider 305, the limiting block 304 causes the permanent magnet 306 to compress. The simulation mechanism 4 includes a second sleeve 401, which is externally fixedly connected to the top of the support plate 202. A box body 404 is slidably connected to the inner wall of the second sleeve 401. Connecting sliders 403 are fixedly connected to both sides of the box body 404. The connecting sliders 403 cooperate with the box body 404, and can synchronously drive the box body 404 to move when the connecting sliders 403 move. Guide grooves 402 are opened on both sides of the second sleeve 401, and the external side of the connecting sliders 403 is slidably connected to the inner wall of the guide grooves 402. The guide grooves 402 are used to limit and guide the connecting sliders 403. Permanent magnets 306 are provided inside both the box body 404 and the first sleeve 302. One side of the limiting block 304 is in contact with the permanent magnet 306.
[0025] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A magnetic field simulation device for physical experiments, comprising a support table (1), characterized in that, The top of the support table (1) is provided with an adjustment mechanism (2), the top of the adjustment mechanism (2) is provided with a positioning mechanism (3) and a simulation mechanism (4), the top of the adjustment mechanism (2) is provided with a limit mechanism (5), the inside of the limit mechanism (5) is provided with a scraping mechanism (7), one end of the limit mechanism (5) is provided with a linkage mechanism (6), and the bottom of the limit mechanism (5) is provided with a vibration mechanism (8). The adjustment mechanism (2) includes an electric telescopic rod (201), the bottom of which is fixedly connected to the top of the support table (1), and the output end of which is fixedly connected to a support plate (202). The top of the support table (1) is fixedly connected to two limiting plates (204), and a limiting groove (203) is provided on one side of the limiting plate (204). The two ends of the support plate (202) are slidably connected to the inner wall of the support plate (202).
2. The magnetic field simulation device for physical experiments according to claim 1, characterized in that, The linkage mechanism (6) includes a rack (602), the bottom of which is fixedly connected to the top of the support plate (202). A fixing block (501) is fixedly connected to the inner side of the limiting plate (204). A rotating rod (603) is rotatably connected to the inner wall of the fixing block (501). A driven gear (601) is fixedly connected to the left side of the rotating rod (603). A movable groove (604) is provided through the top of the fixing block (501). One side of the rack (602) is meshed with the outside of the driven gear (601).
3. The magnetic field simulation device for physical experiments according to claim 2, characterized in that, The vibration mechanism (8) includes two turntables (801). The inner wall of the turntable (801) is fixedly connected to the outside of the rotating rod (603). Two protrusions (802) are fixedly connected to the outside of the turntable (801). Two through slots (803) are opened at the bottom of the fixed block (501). The through slots (803) are located inside the through slots (803).
4. The magnetic field simulation device for physical experiments according to claim 3, characterized in that, The limiting mechanism (5) includes a glass box (503), which is set in the top groove of the fixing block (501). The top of the fixing block (501) has two limiting grooves (502), and the two ends of the glass box (503) are slidably connected to the inner wall of the limiting grooves (502).
5. A magnetic field simulation device for physical experiments according to claim 4, characterized in that, The leveling mechanism (7) includes a moving block (701). Two guide grooves (703) are provided on the top of the glass box (503). The outside of the moving block (701) is slidably connected to the inner wall of the guide groove (703). A scraper (702) is fixedly connected to the bottom of the moving block (701). The two sides of the scraper (702) are slidably connected to the inner wall of the glass box (503).
6. The magnetic field simulation device for physical experiments according to claim 1, characterized in that, The positioning mechanism (3) includes a first sleeve (302), the outside of which is fixedly connected to the top of the support plate (202), a limit block (304) is slidably connected to the inner wall of the first sleeve (302), a movable slider (305) is fixedly connected to the top of the limit block (304), a fixing groove (301) is opened on the top of the first sleeve (302), the outside of the movable slider (305) is slidably connected to the inner wall of the fixing groove (301), a spring (303) is installed inside the first sleeve (302), one end of the spring (303) is fixedly connected to one side of the limit block (304), and the other end of the spring (303) is fixedly connected to the first sleeve (302).
7. A magnetic field simulation device for physical experiments according to claim 6, characterized in that, The simulation mechanism (4) includes a second sleeve (401), the outside of which is fixedly connected to the top of the support plate (202). A box body (404) is slidably connected to the inner wall of the second sleeve (401). A connecting slider (403) is fixedly connected to both sides of the box body (404). A guide groove (402) is provided on both sides of the second sleeve (401). The outside of the connecting slider (403) is slidably connected to the inner wall of the guide groove (402).
8. A magnetic field simulation device for physical experiments according to claim 7, characterized in that, Both the box body (404) and the first sleeve box (302) are equipped with permanent magnets (306), and one side of the limiting block (304) is in contact with the permanent magnets (306).
9. A magnetic field simulation device for physical experiments according to claim 4, characterized in that, A camera (9) is installed on the top of the limiting plate (204), the driven gear (601) and the rack (602) are both located inside the movable groove (604), and the outside of the turntable (801) is in contact with the bottom of the glass box (503).