Lifting platform for college physics experiment

Abstract

The invention discloses a lifting platform for university physics experiments, which comprises an experiment table, a lifting mechanism for lifting the experiment table is arranged below the experiment table, a turnover plate is arranged at the side part of the experiment table, the turnover plate is rotatably connected with a connecting strip, one end, far away from the turnover plate, of the connecting strip is fixedly connected with a rotating rod, and the rotating rod is in transmission connection with a first belt; the lifting platform for the university physics experiment has an adjustable lifting function, when the lifting platform is not used, the experiment table can be lowered to a low position, and the experiment table can be conveniently folded by matching with a folding plate, so that the experiment table is convenient to use, and the experiment table is convenient to use. The experiment table and instruments on the experiment table can be stored in a relatively closed space, the probability that dust makes contact with the experiment table and the instruments is reduced, and due to the fact that the experiment table can be stored through the lifting mechanism, the requirement for frequent cleaning of the experiment table is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of physical experiment equipment, and particularly relates to a lifting platform for college physics experiments. Background Art

[0002] College physics experiments cover multiple fields such as mechanics, electromagnetism, optics, thermology, and modern physics. Experiments in each field require equipment to be realized. The equipment used in college physics experiments is of various types, including various instruments, measuring tools, and materials. From basic measuring tools such as simple balances, weights, spring scales, vernier calipers, to high-precision instruments such as oscilloscopes, spectrometers, spectrometers, Michelson interferometers, etc. In colleges, the physics discipline needs to use experimental tables to conduct physics experiments during teaching, so as to assist teaching.

[0003] After retrieval, a patent with the Chinese patent number CN118356998A discloses an experimental table for physics experiment teaching, including a platform. A first groove is provided on the top surface of the platform. An experimental board is rotatably connected in the first groove. A first driving mechanism is provided in the first groove, and the first driving mechanism is in transmission connection with the experimental board. Symmetrically fixed to the bottom surface of the platform is a lifting mechanism. The lifting mechanism includes two first connecting legs. A second connecting leg is slidably connected in the first connecting leg. The second connecting leg is fixedly connected to the platform. A first connecting plate is fixedly connected between the two first connecting legs. A second driving mechanism is provided in the first connecting plate, and the second driving mechanism is adapted to the second connecting leg.

[0004] During the use of the above device, during physics experiments, on the one hand, if it has not been used for a long time, a large amount of dust can accumulate on the surface of the physics experimental table. When light passes through an optical system with dust, scattering and absorption will occur, affecting the imaging quality. For example, when using a microscope to observe cell structures, dust may make the details of the cells difficult to distinguish, reducing the accuracy and precision of the experiment. On the other hand, if someone is sent to clean this dust, due to the large number of laboratories, this may waste a large amount of manpower and financial resources. Therefore, a lifting platform for college physics experiments is proposed. Summary of the Invention

[0005] The purpose of the present invention is to solve the deficiencies existing in the prior art that during physics experiments, on the one hand, if it has not been used for a long time, a large amount of dust can accumulate on the surface of the physics experimental table. When light passes through an optical system with dust, scattering and absorption will occur, affecting the imaging quality. For example, when using a microscope to observe cell structures, dust may make the details of the cells difficult to distinguish, reducing the accuracy and precision of the experiment. On the other hand, if someone is sent to clean this dust, due to the large number of laboratories, this may waste a large amount of manpower and financial resources, and to propose a lifting platform for college physics experiments.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A lifting platform for college physics experiments, including an experimental table. There is a lifting mechanism below the experimental table for lifting itself. A folding plate is provided on the side of the experimental table. The folding plate is rotatably connected to a connecting strip. One end of the connecting strip away from the folding plate is fixedly connected to a rotating rod. The rotating rod is drivingly connected to a first belt. One end of the first belt away from the rotating rod is drivingly connected to a rotating column. The rotating column is drivingly connected to a second belt. One end of the second belt away from the rotating column is drivingly connected to a support rod. A first internal gear in a groove and a second internal gear in a groove are sleeved outside the support rod. The second internal gear in a groove is meshed with a second rack attached to a frame. The second rack attached to a frame is fixed on the side of a second lifting frame. The first internal gear in a groove is meshed with a first rack attached to a frame. The first rack attached to a frame is fixed on the side of a first lifting frame. A placement groove is formed on the surface of the experimental table. A bottom plate is slidably connected inside the placement groove. The bottom plate is fixed above the first lifting frame and the second lifting frame. A cylinder for lifting a lifting plate is provided above the bottom plate.

[0008] The above technical solution further includes:

[0009] The lifting mechanism includes a motor arranged inside a secondary support leg. The output end of the motor is fixedly connected to a worm. The worm is meshed with a worm gear. One end of the worm gear is fixedly connected to an internal gear of the leg. The internal gear of the leg is meshed with an internal rack of the leg. The internal rack of the leg is fixed inside the main support leg. The meshing structure of the internal gear of the leg and the internal rack of the leg converts the rotational motion into a linear motion, realizing the stable sliding of the main support leg along the outer wall of the secondary support leg, thereby realizing the lifting function of the experimental table. This structure can provide a large transmission ratio, enabling a small motor torque to generate a large lifting force, being suitable for carrying experimental equipment of a certain weight, and at the same time ensuring the smoothness and accuracy of the lifting process, avoiding affecting the experimental results due to platform shaking or unstable lifting.

[0010] A first control panel for controlling the motor is provided on the side of the experimental table. Buttons for controlling the motor are arranged on the surface of the first control panel.

[0011] A square groove is provided on the side of the experimental table for the transmission of the first belt. The square groove provides a stable transmission space for the first belt, ensuring that the first belt will not be interfered by external factors during the transmission process, and guaranteeing the stability and reliability of the transmission.

[0012] The experimental table is rotatably connected to a rotating column. The rotational connection between the experimental table and the rotating column provides a possibility for the subsequent transmission system and lifting mechanism to transmit motion, enabling the rotating column to transmit the rotational motion to other components and providing a structural basis for the complex motion of the entire device.

[0013] Both ends of the support rod are rotatably connected to the inner wall of the experimental table.

[0014] The second lifting frame is slidably connected to the experimental table, and the first lifting frame is slidably connected to the experimental table. A groove for the up-and-down sliding of the first lifting frame and the second lifting frame is provided inside the experimental table. The sliding connection of the first lifting frame and the second lifting frame to the experimental table, and the up-and-down sliding groove provided for them inside the experimental table enable them to slide up and down along a predetermined path under the drive of the lifting mechanism. This design can realize the coordinated lifting of some areas of the experimental table, provide different bearing and operating heights for different areas of the experimental table, and increase the flexibility and functionality of the platform.

[0015] Buffer pads for buffering are provided on the side of the folding plate.

[0016] A placement groove is provided inside the experimental table for placing the lifting plate and the bottom plate.

[0017] Buttons for controlling the lifting of the cylinder are provided on the surface of the first control panel.

[0018] The present invention has the following beneficial effects:

[0019] 1. In the present invention, the lifting platform for college physics experiments has an adjustable lifting function. When not in use, the experimental table can be lowered to a lower position, and in combination with the folding plate, the experimental table and the instruments and equipment on it can be stored in a relatively enclosed space, reducing the chance of dust contacting the experimental table and the instruments. In this way, when the experimental table is used again, the possibility of the optical system being contaminated by dust will be significantly reduced, avoiding the interference of dust on optical experiments, thus ensuring the normal propagation of light in the optical system and helping to maintain the imaging quality.

[0020] 2. Since the experimental table can be stored through the lifting mechanism, the possibility of dust accumulation is reduced, thereby reducing the need for frequent cleaning of the experimental table. Compared with traditional experimental tables, there is no need to specially arrange personnel to regularly clean the experimental table comprehensively, saving labor costs. For example, in the case of a large number of laboratories, there is no need to arrange personnel for regular dust cleaning for each experimental table, reducing the cost of personnel scheduling and management, reducing the movement and rearrangement of experimental instruments that may be caused by cleaning dust, and avoiding the risk of damage to the instruments during the cleaning process, indirectly saving the maintenance and replacement costs caused by instrument damage. Description of the Drawings

[0021] Figure 1 It is a schematic structural diagram of a lifting platform for college physics experiments proposed by the present invention;

[0022] Figure 2 Schematic diagram of the top structure in the present invention;

[0023] Figure 3 is Figure 2 Enlarged schematic diagram at position A in

[0024] Figure 4 Partial structure schematic diagram of the present invention;

[0025] Figure 5 is Figure 4 Enlarged schematic diagram at position B in

[0026] Figure 6 Schematic diagram of the lifting mechanism structure in the present invention;

[0027] Figure 7 is Figure 6 Enlarged schematic diagram at position C in

[0028] In the figure: 1. experimental table; 2. main support leg; 3. auxiliary support leg; 4. internal rack of the leg; 5. motor; 6. worm; 7. worm gear; 8. internal gear of the leg; 9. folding plate; 10. buffer cushion block; 11. connecting strip; 12. rotating rod; 13. square groove; 14. first control panel; 15. lifting plate; 16. bottom plate; 17. cylinder; 18. first belt; 19. rotating column; 20. second belt; 21. first internal gear in the groove; 22. second internal gear in the groove; 23. first lifting frame; 24. second lifting frame; 25. first rack for attaching to the frame; 26. second rack for attaching to the frame; 27. placement groove; 28. support rod. Detailed implementation manner

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Please refer to Figures 1-7As shown in the figure, the present invention is a lifting platform for college physics experiments, including an experimental table 1. Below the experimental table 1, there is a lifting mechanism for lifting itself. On the side of the experimental table 1, there is a folding plate 9. The folding plate 9 is rotatably connected to a connecting bar 11. One end of the connecting bar 11 away from the folding plate 9 is fixedly connected to a rotating rod 12. The rotating rod 12 is drivingly connected to a first belt 18. One end of the first belt 18 away from the rotating rod 12 is drivingly connected to a rotating column 19. The rotating column 19 is drivingly connected to a second belt 20. One end of the second belt 20 away from the rotating column 19 is drivingly connected to a support rod 28. Outside the support rod 28, there are a first internal gear in the groove 21 and a second internal gear in the groove 22 sleeved. The second internal gear in the groove 22 is meshingly connected to a second rack attached to the frame 26. The second rack attached to the frame 26 is fixed to the side of the second lifting frame 23. The first internal gear in the groove 21 is meshingly connected to a first rack attached to the frame 25. The first rack attached to the frame 25 is fixed to the side of the first lifting frame 24. On the surface of the experimental table 1, there is a placement groove 27. Inside the placement groove 27, there is a bottom plate 16 slidably connected. The bottom plate 16 is fixed above the first lifting frame 23 and the second lifting frame 24. Above the bottom plate 16, there is a cylinder 17 for lifting a lifting plate 15.

[0031] In one embodiment, for the above-mentioned lifting mechanism, the lifting mechanism includes a motor 5 arranged inside a secondary support leg 3. The output end of the motor 5 is fixedly connected to a worm 6. The worm 6 is meshingly connected to a worm gear 7. One end of the worm gear 7 is fixedly connected to an internal gear of the leg 8. The internal gear of the leg 8 is meshingly connected to an internal rack of the leg 4. The internal rack of the leg 4 is fixed inside the main support leg 2.

[0032] In this embodiment, the meshing structure of the internal gear of the leg 8 and the internal rack of the leg 4 converts the rotational motion into a linear motion, realizing the stable sliding of the main support leg 2 along the outer wall of the secondary support leg 3, thereby realizing the lifting function of the experimental table. This structure can provide a large transmission ratio, enabling a small motor torque to generate a large lifting force, which is suitable for carrying experimental equipment of a certain weight. At the same time, it ensures the smoothness and accuracy of the lifting process, avoiding affecting the experimental results due to platform shaking or unstable lifting. Especially in experiments that require high precision, such as optical experiments and fine mechanical measurement experiments, it can ensure the smooth progress of the experiment.

[0033] In one embodiment, for the above-mentioned first control panel 14, on the side of the experimental table 1, there is a first control panel 14 for controlling the motor 5. On the surface of the first control panel 14, there are buttons for controlling the motor 5.

[0034] In one embodiment, for the above-mentioned square groove 13, on the side of the experimental table 1, there is a square groove 13 for the transmission of the first belt 18.

[0035] In this embodiment, the square groove 13 provides a stable transmission space for the first belt 18, ensuring that the first belt 18 will not be interfered by external factors during the transmission process, and guaranteeing the stability and reliability of the transmission.

[0036] In one embodiment, for the above-mentioned test bench 1, the test bench 1 is rotatably connected to a rotating column 19.

[0037] In this embodiment, the rotational connection between the test bench 1 and the rotating column 19 provides a possibility for the subsequent transmission system and lifting mechanism to transmit motion, enabling the rotating column 19 to transmit rotational motion to other components and providing a structural basis for the complex motion of the entire device.

[0038] In one embodiment, for the above-mentioned support rod 28, both ends of the support rod 28 are rotatably connected to the inner wall of the test bench 1.

[0039] In this embodiment, the rotational connection between the two ends of the support rod 28 and the inner wall of the test bench 1 makes the support rod 28 more stable when transmitting motion and supporting the platform. When it rotates driven by the transmission system, due to the constraint of the rotational connection, its motion trajectory is more stable, which helps to ensure the motion accuracy of components such as the first in-slot gear 21 and the second in-slot gear 22 connected to it.

[0040] In one embodiment, for the above-mentioned second lifting frame 24, the second lifting frame 24 is slidably connected to the test bench 1, the first lifting frame 23 is slidably connected to the test bench 1, and a groove part for the up-and-down sliding of the first lifting frame 23 and the second lifting frame 24 is provided inside the test bench 1.

[0041] In this embodiment, the sliding connection between the first lifting frame 23 and the second lifting frame 24 and the test bench 1, as well as the up-and-down sliding groove part provided for them inside the test bench 1, enable them to slide up and down along a predetermined path under the drive of the lifting mechanism. This design can realize the coordinated lifting of some areas of the test bench, provide different bearing and operating heights for different areas of the test bench, and increase the flexibility and functionality of the platform.

[0042] In one embodiment, for the above-mentioned folding plate 9, a buffer pad 10 for buffering is provided on the side of the folding plate 9.

[0043] In one embodiment, for the above-mentioned placement groove 27, a placement groove 27 is opened inside the test bench 1, and the placement groove 27 is used for placing the lifting plate 15 and the bottom plate 16.

[0044] In one embodiment, for the above-mentioned first control panel 14, buttons for controlling the lifting of the cylinder 17 are provided on the surface of the first control panel 14.

[0045] The working principle of a lifting platform for college physics experiments in the present invention is that in the case of uneven terrain, a lifting mechanism is provided in each of the legs below the experimental table 1. The motor 5 is controlled by pressing the buttons on the surface of the first control panel 14 on the side of the experimental table 1. The rotation of the motor 5 drives the worm 6 to rotate. The rotation of the worm 6 meshes with the worm gear 7, and the worm gear 7 drives the inner leg gear 8 to rotate. The inner leg gear 8 meshes with the inner leg rack 4, so that the main leg 2 slides along the outer wall of the secondary leg 3, thereby achieving elevation.

[0046] A plurality of lifting structures are provided at the bottom of the experimental table 1. At this time, the buttons on the first control panel 14 can be used for synchronous lifting and separate lifting, so as to prevent avoidable errors in the physical experiment due to uneven terrain in the subsequent process. Then, the folding plate 9 is flipped, and the folding plate 9 is set from above the experimental table 1 to fit against the main leg 2. At this time, the buffer cushion block 10 will abut against the side of the main leg 2, thereby preventing damage to the main leg 2 and avoiding inaccurate lifting height.

[0047] Then, when the folding plate 9 is flipped, it will drive the connecting bar 11 to rotate. The connecting bar 11 is rotationally connected to the folding plate 9. During the flipping process, finally the folding plate 9 fits against the side of the main leg 2, and one end of the folding plate 9 will have an angular offset. Thus, the other end of the folding plate 9 rotates to drive the rotating rod 12 to rotate. The rotating rod 12 further drives the rotating column 19 to rotate through the first belt 18. The rotation of the rotating column 19 drives the support rod 28 to rotate through the second belt 20. The support rod 28 will drive the rotation of the first inner groove gear 21 and the second inner groove gear 22 sleeved on its own surface. The first inner groove gear 21 meshes with the first attached rack 25 to drive the second lifting frame 24 to slide upward. The rotation of the second inner groove gear 22 meshes with the second attached rack 26 to further drive the first lifting frame 23 to move upward. Thus, when the second inner groove gear 22 and the first attached rack 25 rotate synchronously, the first lifting frame 23 and the second lifting frame 24 will rise synchronously. The bottom plate 16 fixed on the surfaces of the first lifting frame 23 and the second lifting frame 24 will move upward. At this time, the bottom plate 16 will be at the same horizontal plane as the upper part of the experimental table 1. If a person is relatively tall, the cylinder 17 can be controlled by the first control panel 14 to tilt so as to adapt to people of different heights.

[0048] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lifting platform for university physics experiments, characterized in that: The experimental table (1) comprises a lifting mechanism for lifting the experimental table (1) is arranged below the experimental table (1), a folding plate (9) is arranged on the side of the experimental table (1), the folding plate (9) is rotatably connected to a connecting strip (11), the end of the connecting strip (11) away from the folding plate (9) is fixedly connected to a rotating rod (12), the rotating rod (12) is transmission-connected to a first belt (18), the end of the first belt (18) away from the rotating rod (12) is transmission-connected to a rotating column (19), the rotating column (19) is transmission-connected to a second belt (20), the end of the second belt (20) away from the rotating column (19) is transmission-connected to a support rod (28), the support rod (28) is sleeved with a first The inner groove gear (21) is meshed with the second inner groove gear (22), the second inner groove gear (22) is meshedly connected with the second rack rack (26), the second rack rack (26) is fixed to the side of the second lifting frame (23), the first inner groove gear (21) is meshedly connected with the first rack rack (25), the first rack rack (25) is fixed to the side of the first lifting frame (24), the surface of the experimental table (1) is provided with a placement groove (27), the inside of the placement groove (27) is slidably connected with a bottom plate (16), the bottom plate (16) is fixed above the first lifting frame (23) and the second lifting frame (24), and a cylinder (17) for lifting the lifting plate (15) is arranged above the bottom plate (16).

2. The lifting platform for university physics experiments according to claim 1 is characterized in that: The lifting mechanism comprises a motor (5) arranged inside the auxiliary supporting leg (3); the output end of the motor (5) is fixedly connected to a worm (6); the worm (6) is meshingly connected to a worm wheel (7); one end of the worm wheel (7) is fixedly connected to an inner leg gear (8); the inner leg gear (8) is meshingly connected to an inner leg rack (4); and the inner leg rack (4) is fixed inside the main supporting leg (2).

3. The lifting platform for university physics experiments according to claim 1 is characterized in that: A first control panel (14) for controlling the motor (5) is arranged on the side of the experimental table (1), and buttons for controlling the motor (5) are arranged on the surface of the first control panel (14).

4. The lifting platform for university physics experiments according to claim 1 is characterized in that: A square groove (13) is provided on the side of the experimental table (1), and the square groove (13) is used for the transmission of the first belt (18).

5. The lifting platform for university physics experiments according to claim 1 is characterized in that: The experimental platform (1) is rotatably connected to a rotating column (19).

6. The lifting platform for university physics experiments according to claim 1 is characterized in that: Both ends of the support rod (28) are rotatably connected to the inner wall of the experimental table (1).

7. The lifting platform for university physics experiments according to claim 1 is characterized in that: The second lifting frame (24) is slidably connected to the experimental table (1), and the first lifting frame (23) is slidably connected to the experimental table (1). A groove is provided inside the experimental table (1) for the first lifting frame (23) and the second lifting frame (24) to slide up and down.

8. The lifting platform for university physics experiments according to claim 1 is characterized in that: A buffer pad (10) for buffering is arranged on the side of the folding plate (9).

9. The lifting platform for university physics experiments according to claim 1, characterized in that: The experimental table (1) is provided with a placement groove (27) inside, and the placement groove (27) is used for placing the lifting plate (15) and the bottom plate (16).

10. The lifting platform for university physics experiments according to claim 3, characterized in that: The surface of the first control panel (14) is provided with buttons for controlling the cylinder (17) to rise and fall.

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