Photoelectric sensing control teaching experiment table

Abstract

The utility model discloses a photoelectric sensing control teaching experiment table, and relates to the technical field of teaching experiment tables, the teaching experiment table comprises a support platform and a plurality of test articles 1 of different colors, the plurality of test articles 1 are arrayed along the horizontal direction, and the support platform is provided with an execution unit, a detection unit and a display control unit; the execution unit is used for driving the plurality of test articles I to move along the array direction; the detection unit comprises a color photoelectric sensor and a first position photoelectric sensor, the color photoelectric sensor and the first position photoelectric sensor are arranged on the supporting platform, and the detection directions of the color photoelectric sensor and the first position photoelectric sensor face the first test object; and the display control unit is used for controlling the start and stop of the execution unit and displaying the color related information of the test article detected by the detection unit, and the photoelectric sensor teaching device has the effect of facilitating students to intuitively understand the industrial application of the photoelectric sensor, and is beneficial to improving the teaching effect.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching experiment tables, in particular to a photoelectric sensor control teaching experiment table. Background Art

[0002] At present, with the continuous progress and development of electronic control technology, the requirements for the automation of the system are getting higher and higher. As a commonly used sensor in electronic control systems, photoelectric sensors are very common in research and teaching.

[0003] In the existing photoelectric sensor test teaching experiments, the model of photoelectric sensors is single, and the experiments often only collect data. There is no actual actuator to cooperate with it to achieve process control and simulate the actual process flow. Students cannot intuitively understand the actual application of photoelectric sensors in industry, which affects the teaching effect. Utility Model Content

[0004] The utility model provides a photoelectric sensor control teaching experiment platform, which helps students to intuitively understand the effect of the actual application of photoelectric sensors in industry.

[0005] The utility model specifically adopts the following technical solutions:

[0006] A photoelectric sensing control teaching experiment platform, comprising a supporting platform and a plurality of test objects of different colors, wherein the plurality of test objects are arranged in a horizontal array, and an execution unit, a detection unit and a display control unit are arranged on the supporting platform;

[0007] The execution unit is used to drive a plurality of the test objects to move along the array direction;

[0008] The detection unit comprises a color photoelectric sensor and a first position photoelectric sensor, wherein the color photoelectric sensor and the first position photoelectric sensor are arranged on the supporting platform, and the detection directions of the color photoelectric sensor and the first position photoelectric sensor are both toward the test article 1;

[0009] The display control unit is used to control the start and stop of the execution unit, and to display the color and position related information of the test object detected by the detection unit.

[0010] Optionally, the execution unit includes a transmission toothed belt, a driving gear, a driven gear and a reduction motor, the driving gear and the driven gear are relatively arranged on a support platform, the support platform is respectively provided with two opposite openings, the driving gear is rotatably arranged in one of the openings, and the driven gear is rotatably arranged in the other opening, the body of the reduction motor is arranged inside the support platform, the driving shaft of the reduction motor is coaxially fixedly connected with the driving gear, the transmission toothed belt is covered on the driving gear and the driven gear, and the transmission toothed belt is provided with a mounting part for fixing the test item one.

[0011] Optionally, the mounting member includes a mounting seat and a locking screw, the mounting seat is arranged on the conveyor belt, the side wall of the mounting seat away from the conveyor belt is provided with a mounting groove for accommodating test item 1, the side wall of the mounting seat is provided with a locking hole penetrating the groove wall of the mounting groove, the locking screw is threadedly connected to the hole wall of the locking hole, and one end of the locking screw passes through the locking hole and is tightened against the side wall of test item 1.

[0012] Optionally, the detection unit also includes a second position photoelectric sensor arranged on the support platform, and the support platform is also provided with a slide rail, a slide seat is slidably provided on the slide rail, the slide seat is fixed on the slide rail by a positioning piece, and a second test item is installed on the slide seat, and the detection direction of the second photoelectric sensor is toward the second test item.

[0013] Optionally, the positioning member is a positioning bolt, a positioning hole is provided on the side wall of the slide seat, the positioning bolt is threadedly connected to the hole wall of the positioning hole, and one end of the positioning bolt passes through the positioning hole and abuts against the side wall of the slide rail.

[0014] Optionally, the support platform is provided with a limiting component for preventing the slide seat from sliding out of the slide rail.

[0015] Optionally, the limit assembly includes two limit seats and two limit blocks, the two limit seats are arranged opposite to each other, the slide rail is located between the two limit seats, the limit seats are fixed to the support platform by fastening bolts, the two limit blocks correspond to the two limit seats one by one respectively, and the limit blocks are fixed to the side wall of the limit seat facing the slide seat through a connecting piece.

[0016] Optionally, the connecting member includes a connecting rod, a screw and two nuts, the side wall of the limit seat is provided with a connecting hole for the screw to pass through, the two nuts are threadedly connected to the screw, and the two nuts respectively abut against the two side walls of the limit seat, one end of the connecting rod is connected to the limit block, the other end of the connecting rod is provided with a protrusion, one end of the screw is provided with a connecting groove for the protrusion to be inserted, and the other end of the screw is provided with a smooth portion.

[0017] Optionally, the limit block is made of rubber material.

[0018] Optionally, the display control unit includes a PLC controller, a touch panel, a start button, a stop button and an emergency stop button, the PLC controller is arranged inside the support platform, the touch panel, the start button, the stop button and the emergency stop button are electrically connected to the PLC controller, and the touch panel, the start button, the stop button and the emergency stop button are all arranged on the support platform.

[0019] Optionally, a safety door is hingedly provided on the top wall of the support platform, a transparent observation window is provided on the safety door, and the safety door is fixed to the support platform by a lock.

[0020] Optionally, handles are provided on both side walls of the support platform, and nylon blocks are provided at the four corners of the bottom of the support platform.

[0021] Optionally, a power socket and a network cable interface are installed on the side wall of the support platform.

[0022] The photoelectric sensor control teaching experiment platform provided by the utility model has the following beneficial effects:

[0023] 1. By setting sensors with different functions, the actual use scenarios of photoelectric sensors are simulated, so that students can intuitively understand the industrial application of photoelectric sensors, which helps to improve teaching effects;

[0024] 2. Use the actuator to drive the test object of different colors to move, so that the color photoelectric sensor and the first position photoelectric sensor can detect the color and position of the test object. By setting up the actual actuator to cooperate with the detection teaching of the photoelectric sensor, it is helpful to enrich the students' learning experience and improve the teaching effect.

[0025] 3. The cooperation between the slide seat and the slide rail makes it easy for students to manually move the test item 2, so that the second position photoelectric sensor can test the position of the test item 2. The use of a manual mode actuator helps to expand students' cognitive learning in the field of sensors and improve teaching effectiveness.

[0026] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present utility model, nor are they intended to limit the scope of the present utility model. Other features of the present utility model will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 This is an overall schematic diagram of a teaching experiment platform in an embodiment of the present application;

[0029] Figure 2 This is a front view structural diagram of the teaching experiment table in the embodiment of the present application;

[0030] Figure 3 To reflect Figure 2 Schematic diagram of the cross-sectional structure along the AA direction.

[0031] 1. Support platform; 2. Test item 1; 3. Execution unit; 31. Transmission belt; 32. Driving gear; 33. Driven gear; 34. Speed ​​reduction motor; 35. Mounting seat; 36. Protective cover; 4. Detection unit; 41. Color photoelectric sensor; 42. First position photoelectric sensor; 43. Second position photoelectric sensor; 44. Test item 2; 5. Slide rail; 6. Slide seat; 7. Positioning bolt; 8. Limiting assembly; 81. Limiting seat; 82. Limiting block; 83. Connecting rod; 84. Screw; 85. Nut; 9. Display control unit; 91. Touch panel; 92. Start button; 93. Stop button; 94. Emergency stop button; 10. Safety door; 11. Transparent observation window; 12. Handle; 13. Nylon stop block; 14. Power socket; 15. Network cable interface; 16. Lock. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0033] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0034] This embodiment provides a photoelectric sensor control teaching experiment platform. Figure 1 The teaching experiment table includes a support platform 1, which is set as a box structure. One side wall of the support platform 1 is set as an inclined surface. The side wall of the support platform 1 located on the inclined surface is provided with a sensor control execution structure. The setting of the inclined surface side wall is convenient for personnel operation.

[0035] The side wall of the support platform 1 located on the inclined surface is provided with an execution unit 3, a detection unit 4, a display control unit 9 and a plurality of test items 2. In this embodiment, the number of the plurality of test items 2 is taken as two for example. The colors of the two test items 2 are different, and the two test items 2 are arranged at equal intervals along the length direction of the support platform 1.

[0036] The execution unit 3 is used to drive the two test objects 1 2 to move horizontally along the arrangement direction.

[0037] The detection unit 4 includes a color photoelectric sensor 41 and a first position photoelectric sensor 42. The color photoelectric sensor 41 and the first position photoelectric sensor 42 are both fixedly mounted on the support platform 1. The detection directions of the color photoelectric sensor 41 and the first position photoelectric sensor are both toward the test object 2.

[0038] The display control unit 9 is used to control the start and stop of the execution unit 3 and to display the color-related information of the test article 2 detected by the detection unit 4.

[0039] In this embodiment, during the teaching experiment, the display control unit 9 is used to control the execution unit 3 to start, and then the execution unit 3 drives the three test items 2 to move in the horizontal direction. The color photoelectric sensor 41 is used to detect the color information of the test item 2 in real time, and the first position photoelectric sensor 42 is used to detect the position information of the test item 2 in real time. The detection results of the color photoelectric sensor 41 and the first position photoelectric sensor 42 can be displayed by the display control unit 9, and then the students can intuitively understand the detection results of the photoelectric sensors through the display control unit 9.

[0040] The teaching experiment platform constructed by the above scheme simulates the actual use scenario of the sensor by setting photoelectric sensors with different detection functions and setting an execution unit 3 to drive the test object 2 to move, so as to facilitate students to intuitively understand the industrial application of photoelectric sensors, which helps to improve the teaching effect.

[0041] Reference Figure 2 and Figure 3 The execution unit 3 includes a horizontally arranged conveyor belt 31, and a mounting member for fixing the test object 1 2 is arranged on the upper side wall surface of the conveyor belt 31, and two test objects 1 2 are arranged at equal intervals along the length direction of the conveyor belt 31. Two openings are provided on the side wall of the support platform 1 and along the transmission direction of the conveyor toothed belt 31. A driving gear 32 is rotatably connected to the side wall of one of the openings, and a driven gear 33 is rotatably connected to the side wall of the other opening. The conveyor toothed belt 31 is covered on the driving gear 32 and the driven gear 33. The inner side wall of the conveyor toothed belt 31 is set to be serrated. The inner side wall of the conveyor toothed belt 31 is meshed with the driving gear 32 and the driven gear 33. The upper side wall of the conveyor toothed belt 31 is located above the side wall of the support platform 1, and the lower side wall of the conveyor toothed belt 31 is located inside the support platform 1. A reduction motor 34 is fixedly installed on the inner side wall of the support platform 1. The driving shaft of the reduction motor 34 is coaxially fixedly connected with the driving gear 32. The reduction motor 34 drives the driving gear 32 to rotate, and the driving gear 32 drives the conveyor toothed belt 31 to transmit, and then the conveyor toothed belt 31 drives the driven wheel to rotate. The cooperation of the driving gear 32 and the driven gear 33 enables the conveyor toothed belt 31 to transmit stably, so as to drive the three test objects 1 2 to move stably.

[0042] In this embodiment, the length of the opening is set to allow the conveyor belt 31 to move into the support platform 1, thereby achieving stable transmission of the conveyor belt 31.

[0043] Two opposing protective covers 36 are fixedly installed on the support platform 1. The two protective covers 36 correspond to the two openings one by one, so as to facilitate stable transmission of the conveyor belt 31. The setting of the two protective covers 36 helps to prevent debris from falling into the support platform 1 through the openings, thereby playing a shielding and protective role.

[0044] Reference Figure 1 There are two groups of mounting parts, and the two groups of mounting parts correspond to the three test objects 2 one by one. One group of mounting parts includes a mounting seat 35 and a locking screw. The mounting seat 35 is arranged on the top surface of the upper side wall of the conveyor toothed belt 31. The side wall of the mounting seat 35 away from the conveyor toothed belt 31 is provided with a mounting groove. The bottom of the test object 2 is placed in the mounting groove. The side wall locking hole of the mounting seat 35 penetrates the groove wall of the mounting groove. The hole wall of the locking hole is set to be threaded. The locking screw is connected with the thread in the locking hole. The screw head of the locking screw abuts against the side wall of the mounting seat 35. The stud end of the locking screw abuts against the side wall of the test object 2, and then the bottom of the test object 2 is fixed to the mounting seat 35 by the locking screw. This mounting method has a simple structure and is easy to operate. It is convenient for the operator to disassemble and assemble the test object 2 to replace the test object 2 of different colors, thereby improving the teaching effect.

[0045] Reference Figure 1 The display control unit 9 includes a PLC controller, a touch panel 91, a start button 92, a stop button 93 and an emergency stop button 94. The PLC controller is arranged inside the support platform 1. The touch panel 91, the start button 92, the stop button 93 and the emergency stop button 94 are all arranged on the support platform 1. The PLC controller is electrically connected to the touch panel 91, the start button 92, the stop button 93 and the emergency stop button 94 respectively. The touch panel 91 and the PLC controller adopt a unified communication protocol to ensure the reliability of data transmission.

[0046] The start button 92 is used to control the start operation of the reduction motor 34 in the execution unit 3. After pressing the start button 92, the PLC controller will receive the start button 92 signal, thereby triggering the start signal for controlling the operation of the reduction motor 34. The stop button 93 is used to control the stop operation of the reduction motor 34 in the execution unit 3. After pressing the stop button 93, the PLC controller will receive the stop button 93 signal, thereby triggering the signal for controlling the reduction motor 34 to stop running. The emergency stop button 94 is provided so that in an emergency, the operator can cut off the power supply of the reduction motor 34, the first position photoelectric sensor 42, and the color photoelectric sensor 41 through the emergency stop button 94.

[0047] Reference Figure 1 and Figure 2In order to further enhance the richness of the teaching experiment, the detection unit 4 also includes a second position photoelectric sensor 43 arranged on the support platform 1. In this embodiment, the two second position photoelectric sensors are of different models, one of which is a strong light type photoelectric sensor, and the other is a laser type photoelectric sensor. A slide rail 5 is also fixedly installed on the support platform 1, and the length direction of the slide rail 5 is in the same direction as the transmission direction of the conveyor belt 31. The two second position photoelectric sensors 43 are arranged side by side on one side of the slide rail 5. A slide seat 6 is slidably provided on the slide rail 5, and a test object 2 44 is installed on the slide seat 6. The detection directions of the two second position photoelectric sensors 43 are both toward the test object 2 44.

[0048] During the teaching experiment, the operator manually slides the slide 6 on the slide rail 5, thereby driving the test object 2 44 to move along the length direction of the slide rail 5. During the displacement of the test object 2 44, the strong light type photoelectric sensor and the laser type photoelectric sensor detect the position of the test object 1 2. After the test is completed, the slide 6 can be fixed on the slide rail 5 by the positioning piece.

[0049] The positioning member in this embodiment is a positioning bolt 7, and a positioning hole is provided on the side wall of the slide seat 6. The positioning hole penetrates the side wall of the slide seat 6 that is in contact with a side wall of the slide rail 5, and the hole wall of the positioning hole is threaded and threadedly matched with the positioning bolt 7. After moving the test object 2 44 to a suitable position, the operator rotates the positioning bolt 7 until the end of the positioning bolt 7 is tightly against the side wall of the slide rail 5, thereby achieving the positioning of the slide seat 6 on the slide rail 5.

[0050] Reference Figure 1 and Figure 2 In order to further improve the operator's experience, a limit assembly 8 is provided on the support platform 1 , and the limit assembly 8 is used to prevent the slide seat 6 from sliding out of the end of the slide rail 5 .

[0051] The limiting assembly 8 includes two limiting seats 81 arranged on the support platform 1, and the two limiting seats 81 are arranged opposite to each other along the length direction of the slide rail 5, and the slide rail 5 is located between the two limiting seats 81. The limiting seat 81 is arranged in an L shape, and the horizontal side wall of the limiting seat 81 is fixed to the support platform 1 by fastening bolts, and the vertical side wall of the limiting seat 81 is fixedly connected to the limiting block 82 by a connecting piece, and the limiting block 82 is arranged opposite to the test object 2 44, and the limiting blocks 82 on the two limiting seats 81 enclose a limiting space to help prevent the slide 6 from sliding out of the end of the slide rail 5.

[0052] The limit block 82 in this embodiment is made of rubber material. Rubber has good buffering and shock absorbing effects, thereby preventing the limit block 82 from causing damage to the test object 2 44 .

[0053] Reference Figure 2The connecting piece includes a connecting rod 83, a screw rod 84 and two nuts 85. A connecting hole is provided on the vertical side wall of the limit seat 81, through which the screw rod 84 passes. The two nuts 85 are both threadedly connected to the screw rod 84, and the two nuts 85 are respectively located on both sides of the vertical side wall of the limit seat 81. One end of the connecting rod 83 is connected to the limit block 82, and the other end of the connecting rod 83 is provided with a protrusion. The end of the screw rod 84 close to the test object 2 44 is provided with a connecting groove, and the connecting groove is used for the protrusion to be plugged in.

[0054] One end of the connecting rod 83 away from the raised portion is set as a smooth portion, and the setting of the smooth portion makes it easy for the operator to rotate the screw 84, and the screw 84 drives the connecting rod 83 to rotate, and then the position of the limit block 82 can be adjusted to a suitable position, and finally the two nuts 85 are screwed so that the two nuts 85 are respectively pressed against the vertical side walls on both sides of the limit seat 81. This connection method has a simple structure and is easy to operate.

[0055] Reference Figure 1 The top wall of the support platform 1 is hingedly connected with a safety door 10, and a transparent observation window 11 is provided on the safety door 10. The transparent observation window 11 is provided to facilitate the user to observe the composition structure of the PLC controller inside the support platform 1 and the operating status of each component. The safety door 10 is fixed to the top wall of the support platform 1 by a lock 16, and the lock 16 can be opened by a key to replace the internal components to meet different experimental requirements.

[0056] Reference Figure 1 Both side walls of the support platform 1 are provided with handles 12 , which facilitate personnel to lift and move the support platform 1 .

[0057] Nylon stoppers 13 are respectively installed at the four corners of the bottom of the support platform 1 to raise the support platform 1 and prevent the bottom of the support platform 1 from being worn during use.

[0058] Reference Figure 1 The side wall of the support platform 1 is also designed to be equipped with a power socket 14 and a network cable interface 15, and the power cord and the network cable can be directly inserted into the outside of the support platform 1, which is convenient for powering on the equipment and programming and debugging.

[0059] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A photoelectric sensor control teaching experiment platform, characterized in that: It comprises a support platform (1) and a plurality of test articles (2) of different colors, wherein the plurality of test articles (2) are arranged in a horizontal array, and an execution unit (3), a detection unit (4) and a display control unit (9) are provided on the support platform (1); The execution unit (3) is used to drive a plurality of the test objects (2) to move along the array direction; The detection unit (4) comprises a color photoelectric sensor (41) and a first position photoelectric sensor (42), wherein the color photoelectric sensor (41) and the first position photoelectric sensor (42) are arranged on the support platform (1), and the detection directions of the color photoelectric sensor (41) and the first position photoelectric sensor (42) are both toward the test article 1 (2); The display control unit (9) is used to control the start and stop of the execution unit (3), and to display information related to the color and position of the test article (2) detected by the detection unit (4).

2. The teaching experiment platform according to claim 1, characterized in that: The execution unit (3) comprises a transmission toothed belt (31), a driving gear (32), a driven gear (33) and a reduction motor (34); the driving gear (32) and the driven gear (33) are both arranged on the support platform (1) in a relative manner; the support platform (1) is provided with two opposite openings; the driving gear (32) is rotatably arranged in one of the openings; the driven gear (33) is rotatably arranged in the other opening; the body of the reduction motor (34) is arranged inside the support platform (1); the driving shaft of the reduction motor (34) is coaxially fixedly connected with the driving gear (32); the transmission toothed belt (31) is covered on the driving gear (32) and the driven gear (33); and the transmission toothed belt (31) is provided with a mounting member for fixing the test article 1 (2).

3. The teaching experiment platform according to claim 2, characterized in that: The mounting member comprises a mounting seat (35) and a locking screw. The mounting seat (35) is arranged on the conveyor toothed belt (31). A side wall of the mounting seat (35) away from the conveyor toothed belt (31) is provided with a mounting groove for accommodating the test article 1 (2). The side wall of the mounting seat (35) is provided with a locking hole penetrating the groove wall of the mounting groove. The locking screw is threadedly connected to the hole wall of the locking hole. One end of the locking screw passes through the locking hole and is pressed against the side wall of the test article 1 (2).

4. The teaching experiment platform according to claim 1, characterized in that: The detection unit (4) further comprises a second position photoelectric sensor arranged on the support platform (1); the support platform (1) is also provided with a slide rail (5); a slide seat (6) is slidably provided on the slide rail (5); the slide seat (6) is fixed on the slide rail (5) by a positioning member; a second test article (44) is mounted on the slide seat (6); and the detection direction of the second position photoelectric sensor is toward the second test article (44).

5. The teaching experiment platform according to claim 4, characterized in that: The positioning member is a positioning bolt (7), a positioning hole is provided on the side wall of the slide seat (6), the positioning bolt (7) is threadedly connected to the hole wall of the positioning hole, and one end of the positioning bolt (7) passes through the positioning hole and abuts against the side wall of the slide rail (5).

6. The teaching experiment platform according to claim 4, characterized in that: The support platform (1) is provided with a limiting component (8) for preventing the slide seat (6) from sliding out of the slide rail (5).

7. The teaching experiment platform according to claim 6, characterized in that: The limit assembly (8) comprises two limit seats (81) and two limit blocks (82); the two limit seats (81) are arranged opposite to each other; the slide rail (5) is located between the two limit seats (81); the limit seat (81) is fixed on the support platform (1) by fastening bolts; the two limit blocks (82) correspond to the two limit seats (81) one by one; and the limit blocks (82) are fixed to the side wall of the limit seat (81) facing the slide seat (6) by a connecting piece.

8. The teaching experiment platform according to claim 7, characterized in that: The connecting member comprises a connecting rod (83), a screw rod (84) and two nuts (85); a side wall of the limiting seat (81) is provided with a connecting hole for the screw rod (84) to pass through; the two nuts (85) are both threadedly connected to the screw rod (84), and the two nuts (85) respectively abut against the two side walls of the limiting seat (81); one end of the connecting rod (83) is connected to the limiting block (82); the other end of the connecting rod (83) is provided with a protruding portion; one end of the screw rod (84) is provided with a connecting groove for the protruding portion to be inserted; and the other end of the screw rod (84) is provided with a smooth portion.

9. The teaching experiment platform according to claim 7, characterized in that: The limiting block (82) is made of rubber material.

10. The teaching experiment platform according to claim 1, characterized in that: The display control unit (9) comprises a PLC controller, a touch panel (91), a start button (92), a stop button (93) and an emergency stop button (94); the PLC controller is arranged inside the support platform (1); the touch panel (91), the start button (92), the stop button (93) and the emergency stop button (94) are all electrically connected to the PLC controller; and the touch panel (91), the start button (92), the stop button (93) and the emergency stop button (94) are all arranged on the support platform (1).

11. The teaching experiment platform according to claim 1, characterized in that: A safety door (10) is hingedly provided on the top wall of the support platform (1), a transparent observation window (11) is provided on the safety door (10), and the safety door (10) is fixed to the support platform (1) via a lock (16).

12. The teaching experiment platform according to claim 1, characterized in that: Both side walls of the support platform (1) are provided with handles (12), and nylon stoppers (13) are provided at the four corners of the bottom of the support platform (1).

13. The teaching experiment platform according to claim 1, characterized in that: A power socket (14) and a network cable interface (15) are installed on the side wall of the support platform (1).

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