A physical experiment platform

Abstract

This invention relates to the field of experimental bench technology, and more particularly to a physical experimental bench, comprising a support column, with a main experimental platform fixedly connected to the top of the support column. The support column and the main experimental platform are equipped with a rotating separation mechanism, a sealing and cleaning mechanism, a pneumatic cleaning mechanism, and a folding mechanism. The rotating separation mechanism includes a circular groove formed at the top of the support column, with a feed pipe rotatably passing through the bottom of the circular groove. The top of the inner wall of the feed pipe is cone-shaped, and a cylindrical filter screen is fixedly connected to the top of the feed pipe. When waste liquid is poured into the cylindrical filter screen, it first contacts a conical retaining ring, which disperses the waste liquid and simultaneously rotates the cylindrical filter screen. The waste liquid is then thrown onto the cylindrical filter screen and ejected from it by centrifugal force. Therefore, the waste liquid level does not rise, allowing for one-time dumping and continuous filtration, thus improving the filtration efficiency of the waste liquid.

Description

Technical Field

[0001] This invention relates to the field of experimental platform technology, and more particularly to a physical experimental platform. Background Technology

[0002] Physics is the discipline that studies the most general laws of motion and the basic structure of matter. As the leading discipline of natural science, physics studies the most basic forms and laws of motion of all matter, from the universe to elementary particles. Therefore, it has become the research foundation for other natural science disciplines. Physics teaching requires the use of laboratory benches to conduct physics experiments to assist teaching. Some physics experiments require the use of water during operation, which will generate waste liquid. Some waste liquid contains waste residue, so it needs to be separated and stored separately.

[0003] In the existing technology, when separating waste residue from waste liquid, the waste liquid is generally poured directly onto the filter screen for filtration. Since the filter screen is fixed inside the cylinder wall, when the waste liquid is poured too quickly, the level of the waste liquid will gradually rise. At this time, it is necessary to wait for the waste liquid to be filtered before the next pouring can be carried out. Therefore, the pouring process needs to be carried out in multiple times, which cannot be continuously filtered, resulting in low filtration efficiency of the waste liquid.

[0004] In addition, after filtering the waste residue, the filtration process needs to be stopped and the filter screen needs to be removed to clean out the waste residue. The entire cleaning process takes a lot of time, which affects the overall filtration effect. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of the prior art by proposing a physical experimental platform.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a physical experimental platform, including a support column, with an experimental main platform fixedly connected to the top of the support column, and a rotation separation mechanism, a sealing and cleaning mechanism, a pneumatic cleaning mechanism and a folding mechanism provided on the support column and the experimental main platform;

[0007] The rotating separation mechanism includes a circular groove at the top of the support column, through which a feed pipe rotatably passes. The top of the inner wall of the feed pipe is cone-shaped, and a cylindrical filter screen is fixedly connected to the top of the feed pipe. The blocking and cleaning mechanism includes a cone-shaped blocking block at the top of the inner wall of the feed pipe. The pneumatic cleaning mechanism includes a diversion chamber inside the cone-shaped blocking block. Multiple air jets are provided at the bottom of the cone-shaped blocking block, and all of the air jets are connected to the diversion chamber. All of the air jets are inclined. When the cone-shaped blocking block and the feed pipe separate, gas is sprayed from the air jets to rotate the cone-shaped blocking block, thereby cleaning the top of the inner wall of the feed pipe.

[0008] Preferably, the rotary separation mechanism further includes a first through hole and a second through hole passing through the side end of the support column. The feed pipe passes through the second through hole and extends into the first through hole. A motor is fixedly connected to the bottom of the inner wall of the second through hole on one side corresponding to the feed pipe. A drive shaft is fixedly connected to the drive end of the motor. The drive shaft and the top of the inner wall of the second through hole are rotatably connected. A gear is fixedly connected to the outer wall of the drive shaft. An external gear ring is meshed with the outer diameter of the gear. The external gear ring and the feed pipe are fixedly connected.

[0009] Preferably, a bearing is fixedly connected to the top of the outer wall of the cylindrical filter screen, and the bearing is fixedly connected to the circular groove. A drain pipe is fixedly connected to the top of the inner wall of the second through hole on the other side corresponding to the feed pipe. The drain pipe extends through the support column to the outside. The drain pipe and the circular groove are connected through a circular hole. The bottom of the inner wall of the circular groove is inclined. Two conical retaining rings are fixedly connected to the inner wall of the cylindrical filter screen.

[0010] Preferably, the sealing and cleaning mechanism includes a fixed frame fixedly connected to the inner wall of the feed pipe below the corresponding conical blockage block, a telescopic column slidably connected to the inner wall of the fixed frame, a conical block fixedly connected to the bottom end of the telescopic column, a spring fixedly connected to the top end of the conical block, the spring and the fixed frame being fixedly connected, and the telescopic column and the conical blockage block being rotatably connected.

[0011] Preferably, a pulling channel is provided at one end of the experimental main platform, and a rope is provided on the inner wall of the pulling channel. The rope is rotatably connected to the conical blocking block, and a circular block is fixedly connected to the other end of the rope.

[0012] Preferably, the outer wall of the vertical portion of the rope is fixedly connected to three fixed rings, the outer walls of the three fixed rings are rotatably connected to rotating rings, the outer walls of the three rotating rings are fixedly connected to multiple connecting posts, and the outer ends of the three sets of connecting posts are fixedly connected to scraper rings.

[0013] Preferably, the pneumatic cleaning mechanism further includes a connecting pipe fixedly passing through the conical block and the telescopic column, the connecting pipe extending into the diversion cavity, a corrugated telescopic pipe rotatably connected to the bottom end of the connecting pipe, a gas pipe rotatably connected to the top end of the corrugated telescopic pipe, the gas pipe passing through the support column, a gas pump fixedly connected to the rear end of the support column, and the gas pump and the gas pipe being fixedly connected.

[0014] Preferably, a positioning ring is fixedly connected to the bottom of the inner wall of the first through hole, a collection bucket is provided on the inner wall of the positioning ring, a liquid inlet channel is provided on one side of the top of the experimental main platform, the liquid inlet channel extends into the cylindrical filter screen, and a waste liquid hopper is fixedly connected to one side of the top of the experimental main platform.

[0015] Preferably, the folding mechanism includes experimental auxiliary platforms rotatably connected to both ends of the main experimental platform, and limit plates are rotatably connected to both sides of the bottom end of the main experimental platform corresponding to the support column.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. Through the set rotary separation mechanism, when the waste liquid is poured into the cylindrical filter screen, it will first contact the conical baffle ring. The conical baffle ring will disperse the waste liquid and rotate the cylindrical filter screen at the same time. At this time, the waste liquid will be thrown onto the cylindrical filter screen and then thrown out of the cylindrical filter screen by centrifugal force. Therefore, the waste liquid level will not rise. So it can be poured out at once and continuously filtered, improving the filtration efficiency of the waste liquid.

[0018] 2. The sealing and cleaning mechanism can block the waste liquid during filtration, thus enabling thorough solid-liquid separation. After filtration, the conical blockage block is lifted by pulling the rope, opening the blockage channel. At this time, the waste residue at the bottom of the cylindrical filter screen falls down. When the rope is pulled, the fixed ring, rotating ring, connecting column, and scraper ring move upward, thus scraping off a portion of the cylindrical filter screen. The scraped waste residue falls into the feed pipe and is collected by the collection bucket, which can quickly clean up the waste residue and improve the overall filtration effect.

[0019] 3. The pneumatic cleaning mechanism activates the gas pump when the conical blockage block is lifted upwards. The generated gas is then transported into the distribution chamber through the gas pipe, corrugated telescopic pipe, and connecting pipe. Due to the positive pressure inside the distribution chamber, the gas is ejected through the jet nozzle. The gas is sprayed onto the top of the inner wall of the feed pipe and the bottom of the cylindrical filter screen. The power generated by the jet can rotate the conical blockage block, thus thoroughly cleaning it. After cleaning, the spring's reset movement will cause the conical block to move downwards, along with the telescopic column and the conical blockage block, completing the sealing operation and facilitating subsequent use.

[0020] 4. The folding mechanism allows the main experimental platform to be folded up after use, reducing the space it occupies. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a physical experimental platform according to the present invention;

[0022] Figure 2 This is another side view of a physical experimental platform according to the present invention;

[0023] Figure 3 This is a vertical sectional view of the support column and the main experimental platform of a physical experimental platform according to the present invention.

[0024] Figure 4 This is a cross-sectional view of the other side of the support column of a physical experiment platform according to the present invention.

[0025] Figure 5 This invention relates to a physical experimental platform. Figure 4 Enlarged view of the structure at point A in the middle;

[0026] Figure 6 This is a cross-sectional view of a cylindrical filter screen and a feed pipe of a physical experiment bench according to the present invention;

[0027] Figure 7 This invention relates to a physical experimental platform. Figure 6 Enlarged view of the structure at point B in the middle;

[0028] Figure 8 This invention relates to a physical experimental platform. Figure 7 Enlarged view of the structure at point C;

[0029] Figure 9 This is a side-view cross-sectional view of the cylindrical filter screen and feed pipe of a physical experiment bench according to the present invention.

[0030] Figure 10 This is a vertical sectional view of a conical blocking block, a conical block, and a telescopic column of a physical experimental platform according to the present invention;

[0031] Figure 11 This is a cross-sectional view of the outer ring of the conical blocking block of a physical experimental platform according to the present invention.

[0032] In the diagram: 1. Support column; 2. Drain pipe; 3. Collection bucket; 4. First through hole; 5. Second through hole; 6. Experimental auxiliary platform; 7. Experimental main platform; 8. Waste liquid hopper; 9. Circular block; 10. Gear; 11. Gas pipe; 12. Gas pump; 13. Limiting plate; 14. Motor; 15. Feed pipe; 16. Circular groove; 17. Rope; 18. Liquid inlet channel; 19. Bearing; 20. Positioning ring; 21. Cylindrical filter screen; 22. External toothed ring; 23. Connecting pipe; 24. Drive shaft; 25. Air nozzle; 26. Conical blocking block; 27. Conical block; 28. Corrugated telescopic pipe; 29. ​​Diverting chamber; 30. Spring; 31. Fixing frame; 32. Conical retaining ring; 33. Scraper ring; 34. Rotating ring; 35. Connecting column; 36. Fixing ring; 37. Telescopic column. Detailed Implementation

[0033] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0034] like Figures 1-11The physical experimental platform shown includes a support column 1, with a main experimental platform 7 fixedly connected to the top of the support column 1. The support column 1 and the main experimental platform 7 are equipped with a rotational separation mechanism, a sealing and cleaning mechanism, a pneumatic cleaning mechanism, and a folding mechanism. The rotational separation mechanism includes a circular groove 16 at the top of the support column 1, through which a feed pipe 15 rotatably passes. The top of the inner wall of the feed pipe 15 is cone-shaped, and a cylindrical filter screen 21 is fixedly connected to the top of the feed pipe 15. The sealing and cleaning mechanism includes a cone-shaped blocking block 26 located at the top of the inner wall of the feed pipe 15. The pneumatic cleaning mechanism includes a diversion cavity 29 located inside the cone-shaped blocking block 26. Multiple air jets 25 are provided at the bottom of the cone-shaped blocking block 26, all communicating with the diversion cavity 29. The multiple air jets 25 are inclined. When the cone-shaped blocking block 26 separates from the feed pipe 15, gas is ejected from the air jets 25, causing the cone-shaped blocking block 26 to rotate, thereby cleaning the top of the inner wall of the feed pipe 15.

[0035] like Figures 2-5 As shown, the rotary separation mechanism also includes a first through hole 4 and a second through hole 5 passing through the side end of the support column 1. The feed pipe 15 passes through the second through hole 5 and extends into the first through hole 4. A motor 14 is fixedly connected to the bottom of the inner wall of the second through hole 5 on the side corresponding to the feed pipe 15. A drive shaft 24 is fixedly connected to the drive end of the motor 14. The drive shaft 24 is rotatably connected to the top of the inner wall of the second through hole 5. A gear 10 is fixedly connected to the outer wall of the drive shaft 24. An external gear ring 22 is meshed with the outer diameter of the gear 10. The external gear ring 22 and the feed pipe 15 are fixedly connected.

[0036] like Figure 3 , Figure 4 , Figure 6 As shown, a bearing 19 is fixedly connected to the top of the outer wall of the cylindrical filter screen 21. The bearing 19 is fixedly connected to the circular groove 16. A drain pipe 2 is fixedly connected to the top of the inner wall of the second through hole 5 on the other side corresponding to the feed pipe 15. The drain pipe 2 extends outward through the support column 1. The drain pipe 2 and the circular groove 16 are connected through a circular hole. The bottom of the inner wall of the circular groove 16 is inclined. Two conical retaining rings 32 are fixedly connected to the inner wall of the cylindrical filter screen 21. The conical retaining rings 32 can disperse the waste liquid when it comes into contact with the waste liquid, preventing the waste liquid from accumulating together and ensuring the filtration effect of the waste liquid.

[0037] like Figure 6 , Figure 9 , Figure 10As shown, the sealing and cleaning mechanism includes a fixed frame 31 fixedly connected to the inner wall of the feed pipe 15 below the conical blockage block 26. A telescopic column 37 is slidably connected to the inner wall of the fixed frame 31. A conical block 27 is fixedly connected to the bottom end of the telescopic column 37, and a spring 30 is fixedly connected to the top end of the conical block 27. The spring 30 and the fixed frame 31 are fixedly connected, and the telescopic column 37 and the conical blockage block 26 are rotatably connected. After cleaning, the spring 30's reset function allows the conical blockage block 26 to automatically reset, ensuring normal subsequent use.

[0038] like Figure 3 , Figures 6-9 As shown, a pulling channel is provided at one end of the experimental main platform 7. A rope 17 is installed on the inner wall of the pulling channel. The rope 17 is rotatably connected to a conical blocking block 26. A circular block 9 is fixedly connected to the other end of the rope 17. Three fixed rings 36 are fixedly connected to the outer wall of the vertical part of the rope 17. Rotating rings 34 are rotatably connected to the outer walls of the three fixed rings 36. Multiple connecting posts 35 are fixedly connected to the outer walls of the three rotating rings 34. A scraper ring 33 is fixedly connected to one end of each of the three sets of connecting posts 35. The scraper ring 33 is in contact with the cylindrical filter screen 21. When the cylindrical filter screen 21 rotates, it will rotate the scraper ring 33. Since the fixed rings 36 and the rotating rings 34 are rotatably connected, they will not affect the rope 17.

[0039] like Figure 6 , Figure 10 , Figure 11 As shown, the pneumatic cleaning mechanism also includes a connecting pipe 23 fixedly passing through the conical block 27 and the telescopic column 37. The connecting pipe 23 extends into the diversion chamber 29. A corrugated telescopic pipe 28 is rotatably connected to the bottom end of the connecting pipe 23, and a gas pipe 11 is rotatably connected to the top end of the corrugated telescopic pipe 28. The gas pipe 11 passes through the support column 1, and a gas pump 12 is fixedly connected to the rear end of the support column 1. The gas pump 12 and the gas pipe 11 are fixedly connected. The connecting pipe 23 is rotatably connected to the conical blockage block 26 to avoid affecting the rotation of the conical blockage block 26. High-pressure gas is generated by the gas pump 12, and then the gas is transported into the diversion chamber 29 through the gas pipe 11, the corrugated telescopic pipe 28, and the connecting pipe 23. At this time, the diversion chamber 29 is under high pressure, and the gas is ejected from the jet nozzle 25. The thrust generated by the jet causes the conical blockage block 26 to rotate, thereby cleaning different positions on the top of the feed pipe 15.

[0040] like Figure 1 , Figure 3As shown, a positioning ring 20 is fixedly connected to the bottom of the inner wall of the first through hole 4. A collection bucket 3 is installed on the inner wall of the positioning ring 20. A liquid inlet channel 18 is provided on one side of the top of the experimental main platform 7, extending into the cylindrical filter screen 21. A waste liquid hopper 8 is fixedly connected to one side of the top of the experimental main platform 7. Waste liquid is transported into the cylindrical filter screen 21 through the waste liquid hopper 8 and the liquid inlet channel 18 to start the solid-liquid separation operation. The collection bucket 3 is secured directly below the feed pipe 15 by the positioning ring 20 to collect the waste residue.

[0041] like Figure 1 , Figure 2 As shown, the folding mechanism includes experimental auxiliary platforms 6 rotatably connected to both ends of the main experimental platform 7. Limiting plates 13 are rotatably connected to both sides of the bottom of the main experimental platform 7 corresponding to the support column 1. When in use, the experimental auxiliary platforms 6 are opened and limited by the limiting plates 13. When not in use, the experimental auxiliary platforms 6 are folded up to reduce the space when not in use.

[0042] Working principle: First, the waste liquid is poured into the waste liquid hopper 8 and flows into the cylindrical filter screen 21 through the liquid inlet channel 18. At this time, the motor 14 is started to drive the drive shaft 24 and gear 10 to rotate, which in turn drives the outer gear ring 22 to rotate. Since the outer gear ring 22 is fixedly connected to the discharge pipe 15, it can drive the discharge pipe 15 to rotate. The discharge pipe 15 drives the cylindrical filter screen 21 to rotate. Due to the presence of the conical baffle ring 32, the waste liquid can be dispersed to prevent it from accumulating together. Under the action of centrifugal force, it is thrown to the surroundings, thus passing through the cylindrical filter screen 21 to complete the separation of waste liquid and waste residue. During the separation, the waste liquid level will not rise, so the pouring can be completed in one go for continuous filtration, improving the filtration efficiency of the waste liquid. Since the conical block block 26 blocks the top of the discharge pipe 15, it prevents the waste liquid from passing through the discharge pipe 15, thus allowing the waste liquid to fully complete solid-liquid separation.

[0043] After solid-liquid separation is completed, the circular block 9 is pulled along with the rope 17, which in turn moves the fixed ring 36, the rotating ring 34, the connecting column 35, and the scraper ring 33. The scraper ring 33 scrapes and cleans the inner wall of the cylindrical filter screen 21, while the conical blockage block 26 moves upward to open the sealing state. At this time, the waste residue at the bottom of the cylindrical filter screen 21 falls into the collection bucket 3 through the feed pipe 15, thus quickly completing the cleaning of waste residue and improving the overall filtration effect.

[0044] When the conical blockage block 26 is in the raised state, the gas pump 12 is started and the generated gas is delivered into the diversion chamber 29 through the cooperation of the gas pipe 11, the corrugated telescopic pipe 28 and the connecting pipe 23. At this time, the diversion chamber 29 is in a positive pressure state, so the gas can be ejected through the jet nozzle 25. The ejected gas acts on the top of the inner wall of the feed pipe 15 and the bottom of the inner wall of the cylindrical filter screen 21, cleaning off the residual waste residue on the surface. At the same time, the power generated by the jet will cause the conical blockage block 26 to rotate, thereby thoroughly cleaning. After cleaning is completed, the conical block 27 moves downward through the elastic reset action of the spring 30. The telescopic column 37 carries the conical blockage block 26 downward, ensuring that the conical blockage block 26 and the top of the inner wall of the feed pipe 15 are in close contact, ensuring normal use in the future, thereby extending the service life.

[0045] After the experiment is finished, rotate the limiting plate 13 to the side to release the restriction on the experimental sub-platform 6. At this time, the experimental sub-platform 6 can be folded up to reduce the space occupied when not in use.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A physical experiment platform, comprising a support column (1), characterized in that: The top of the support column (1) is fixedly connected to the experimental main platform (7), and the support column (1) and the experimental main platform (7) are provided with a rotation separation mechanism, a sealing and cleaning mechanism, a pneumatic cleaning mechanism and a folding mechanism; The rotary separation mechanism includes a circular groove (16) formed at the top of the support column (1), through which a feed pipe (15) rotatably passes. The top of the inner wall of the feed pipe (15) is cone-shaped, and a cylindrical filter screen (21) is fixedly connected to the top of the feed pipe (15). The sealing and cleaning mechanism includes a cone-shaped blocking block (26) set at the top of the inner wall of the feed pipe (15), and the pneumatic cleaning mechanism includes a diversion chamber (29) formed inside the cone-shaped blocking block (26). The bottom end of the conical block (26) is provided with multiple air jets (25), and the multiple air jets (25) are all connected to the diversion chamber (29). The multiple air jets (25) are all inclined. When the conical block (26) and the feed pipe (15) are separated, gas is sprayed from the air jets (25) and the conical block (26) is rotated, thereby cleaning the top of the inner wall of the feed pipe (15). The rotating separation mechanism also includes a first through hole (4) and a second through hole (5) passing through the side end of the support column (1). A bearing (19) is fixedly connected to the top of the outer wall of the cylindrical filter screen (21). The bearing (19) is fixedly connected to the circular groove (16). A drain pipe (2) is fixedly connected to the top of the inner wall of the second through hole (5) on the other side corresponding to the feed pipe (15). The drain pipe (2) extends through the support column (1) to the outside. The drain pipe (2) and the circular groove (16) are connected through a circular hole. The bottom of the inner wall of the circular groove (16) is inclined. Two conical retaining rings (32) are fixedly connected to the inner wall of the cylindrical filter screen (21).

2. The physical experiment platform according to claim 1, characterized in that: The feeding tube (15) passes through the second through hole (5) and extends into the first through hole (4). A motor (14) is fixedly connected to the bottom of the inner wall of the second through hole (5) on one side corresponding to the feeding tube (15). A drive shaft (24) is fixedly connected to the drive end of the motor (14). The drive shaft (24) is rotatably connected to the top of the inner wall of the second through hole (5). A gear (10) is fixedly connected to the outer wall of the drive shaft (24). An external gear ring (22) is meshed with the outer diameter of the gear (10). The external gear ring (22) and the feeding tube (15) are fixedly connected.

3. A physical experiment platform according to claim 1, characterized in that: The sealing and cleaning mechanism includes a fixed frame (31) fixedly connected to the inner wall of the feed pipe (15) below the corresponding conical blockage block (26). The inner wall of the fixed frame (31) is slidably connected to a telescopic column (37). The bottom end of the telescopic column (37) is fixedly connected to a conical block (27). The top end of the conical block (27) is fixedly connected to a spring (30). The spring (30) and the fixed frame (31) are fixedly connected. The telescopic column (37) and the conical blockage block (26) are rotatably connected.

4. A physical experiment platform according to claim 3, characterized in that: The experimental main platform (7) has a pulling channel at one end, and a rope (17) is provided on the inner wall of the pulling channel. The rope (17) is rotatably connected to the conical blocking block (26), and a circular block (9) is fixedly connected to the other end of the rope (17).

5. A physical experiment platform according to claim 4, characterized in that: The vertical part of the rope (17) is fixedly connected to three fixed rings (36), and the outer walls of the three fixed rings (36) are rotatably connected to rotating rings (34). The outer walls of the three rotating rings (34) are fixedly connected to multiple connecting posts (35), and the outer ends of the three sets of connecting posts (35) are fixedly connected to scraping rings (33).

6. A physical experiment platform according to claim 3, characterized in that: The pneumatic cleaning mechanism also includes a connecting pipe (23) fixedly passing through the conical block (27) and the telescopic column (37). The connecting pipe (23) extends into the diversion chamber (29). A corrugated telescopic pipe (28) is rotatably connected to the bottom end of the connecting pipe (23). A gas pipe (11) is rotatably connected to the top end of the corrugated telescopic pipe (28). The gas pipe (11) passes through the support column (1). A gas pump (12) is fixedly connected to the rear end of the support column (1). The gas pump (12) and the gas pipe (11) are fixedly connected.

7. A physical experiment platform according to claim 2, characterized in that: A positioning ring (20) is fixedly connected to the bottom of the inner wall of the first through hole (4). A collection bucket (3) is provided on the inner wall of the positioning ring (20). A liquid inlet channel (18) is provided on one side of the top of the experimental main platform (7). The liquid inlet channel (18) extends into the cylindrical filter screen (21). A waste liquid hopper (8) is fixedly connected to one side of the top of the experimental main platform (7).

8. A physical experiment platform according to claim 1, characterized in that: The folding mechanism includes experimental sub-platforms (6) rotatably connected to both ends of the experimental main platform (7), and limit plates (13) are rotatably connected to both sides of the bottom end of the experimental main platform (7) corresponding to the support column (1).

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