Internet of Things data acquisition terminal for school classroom

Abstract

The invention relates to the technical field of Internet of Things data acquisition terminals, and discloses an Internet of Things data acquisition terminal for school classrooms, which comprises a fixed bottom plate, telescopic columns are fixedly mounted at four corners of the upper surface of the fixed bottom plate, and a fixed transverse plate is fixedly mounted on the upper surfaces of the telescopic columns. Clamping and fixing devices are fixedly installed at the four corners of the upper surface of the fixing transverse plate, and a buffering and damping device is fixedly installed in the middle of the upper surface of the fixing bottom plate. According to the internet-of-things data acquisition terminal for the school classroom, an electric push rod and a push bracket drive a push rod and a connecting bracket to push an arc-shaped clamping plate to move inwards to mount and dismount the internet-of-things data acquisition terminal, so that the operation is simpler and more efficient, and the mounting and dismounting time and labor cost are greatly saved; when the data acquisition terminal of the internet of things needs to be maintained, replaced or adjusted in position, a worker can easily complete related operation, so that the working efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of Internet of Things data acquisition terminals, and in particular to an Internet of Things data acquisition terminal for a school classroom. Background Art

[0002] The Internet of Things (IoT) is an important component of the new generation of information technology and a key development stage in the "informatization" era. The IoT is the Internet of Things, connecting everything to everything. This has two meanings: First, the core and foundation of the IoT remains the Internet, and it is an extension and expansion of the Internet. Second, its user end extends and expands to any object, exchanging information and communicating with each other, that is, everything communicates with everything. A data acquisition terminal is a GPRS terminal device that enables users to truly keep their devices online in real time, making it convenient for users to view data and observe on-site conditions. In modern society, in order to improve students' learning environment and observe students' learning progress in real time, school classrooms are often equipped with various sensors and monitoring probes, which require IoT data acquisition terminals to collect various types of data. Currently, existing IoT data acquisition terminals are generally fixed directly to a designated location for use. Existing networked data acquisition terminals have a relatively simple structure when fixed, making it very inconvenient to install and remove the networked data acquisition terminals, making it difficult to complete installation and removal operations more quickly and efficiently. This is not conducive to better use of IoT data acquisition terminals and reduces people's convenience. Summary of the Invention

[0003] (1) Technical problems solved

[0004] In view of the deficiencies of the existing technology, the present invention provides an Internet of Things data acquisition terminal for school classrooms, which solves the problems raised in the above background technology.

[0005] (2) Technical solution

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an Internet of Things data acquisition terminal for a school classroom, comprising a fixed base plate, telescopic columns fixedly installed on the four corners of the upper surface of the fixed base plate, a fixed horizontal plate fixedly installed on the upper surface of the telescopic columns, a clamping fixture fixedly installed on the four corners of the upper surface of the fixed horizontal plate, a buffering shock-absorbing device fixedly installed on the middle part of the upper surface of the fixed base plate, a magnetic shock-absorbing device fixedly installed on the four corners of the upper surface of the fixed base plate, a fixed column provided inside the clamping fixture, and an Internet of Things data acquisition terminal fixedly installed on the upper surface of the fixed column.

[0007] Preferably, the clamping and fixing device includes a U-shaped fixing frame fixedly mounted on the upper surface of the fixed horizontal plate, an electric push rod fixedly mounted on the inner wall of the U-shaped fixing frame, a pushing bracket fixedly mounted on the output end of the electric push rod, a rotatable pushing rod provided on the inner side of the pushing bracket, a rotatable connecting bracket provided on the inner side of the pushing rod, an arc-shaped clamping plate fixedly mounted on the inner side of the connecting bracket, an L-shaped sliding plate fixedly mounted on the outer side of the arc-shaped clamping plate, and the outer surface of the L-shaped sliding plate is slidably provided with a rectangular sleeve plate that slides relative to the inner wall of the fixed horizontal plate.

[0008] Preferably, the buffering and shock-absorbing device includes a T-shaped fixing plate fixedly mounted on the upper surface of the fixed base plate, an extrusion spring is fixedly mounted on the inner side of the T-shaped fixing plate, a rotatable extrusion cross frame is provided on the inner side of the extrusion spring, a pulling cross bar passing through the inside of the T-shaped fixing plate is fixedly mounted on the outer side of the extrusion cross frame, a rotatable buffer rod is provided on the inner side of the extrusion cross frame, a rotatable connecting bracket is provided on the top of the buffer rod, a V-shaped bracket is fixedly mounted on the upper surface of the connecting bracket, and an abutting cross plate is fixedly mounted on the upper surface of the V-shaped bracket.

[0009] Preferably, the magnetic shock-absorbing device includes a mounting bracket fixedly mounted on the lower surface of the fixed horizontal plate, a rotatable shock-absorbing rod is provided at the bottom of the mounting bracket, a rotatable sliding horizontal frame is provided at the bottom of the shock-absorbing rod, a movable vertical plate is fixedly mounted on the outer side surface of the sliding horizontal frame, a first magnet block is fixedly mounted on the outer side surface of the movable vertical plate, a slidable guide horizontal column is provided at the bottom of the movable vertical plate, a fixed vertical plate is fixedly mounted on the outer side surface of the guide horizontal column, and a second magnet block is fixedly mounted on the inner side surface of the fixed vertical plate.

[0010] Preferably, a sliding block is fixedly mounted on the lower surface of the sliding horizontal frame, a sliding groove is provided on the upper surface of the fixed bottom plate, and the sliding block is slidably connected to the sliding groove.

[0011] Preferably, the number of the arc-shaped clamping plates is four, and rubber strips are fixedly mounted on the inner walls of the four groups of arc-shaped clamping plates.

[0012] Preferably, a long strip through hole is opened in the middle of the upper surface of the fixed horizontal plate, and the size of the long strip through hole is adapted to the size of the abutting horizontal plate.

[0013] Preferably, a guide circular hole is provided at the bottom of the movable vertical plate, and the guide horizontal column slides inside the guide circular hole.

[0014] (3) Beneficial effects

[0015] Compared with the existing technology, the present invention provides an Internet of Things data acquisition terminal for school classrooms, which has the following beneficial effects:

[0016] 1. The IoT data acquisition terminal for school classrooms uses an electric push rod and a push bracket to drive the push rod and the connecting bracket to push the arc-shaped clamping plate inward. The installation and removal of the IoT data acquisition terminal are simpler and more efficient, greatly saving the time and labor costs of installation and disassembly. When the IoT data acquisition terminal needs to be maintained, replaced or adjusted, the staff can easily complete the relevant operations, thereby improving work efficiency.

[0017] 2. The IoT data acquisition terminal for school classrooms uses an extrusion spring to drive an extrusion cross frame and a buffer rod under the action of its own elastic force to cooperate with a V-shaped bracket and an abutting cross plate to buffer and reduce shock on the IoT data acquisition terminal. This can effectively reduce the impact of external vibrations and impacts on the IoT data acquisition terminal, so that the IoT data acquisition terminal has a better buffering and shock-absorbing effect, which helps to make it safer and more stable to use.

[0018] 3. The Internet of Things data acquisition terminal for school classrooms cooperates with the first magnet block and the second magnet block to drive the sliding cross frame and the shock-absorbing rod to provide auxiliary buffering effect on the Internet of Things data acquisition terminal, thereby further improving the stability of the Internet of Things data acquisition terminal, reducing the damage to the Internet of Things data acquisition terminal caused by vibration, ensuring its stable operation, and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 、 Figure 2 This is a structural diagram of an Internet of Things data acquisition terminal for school classrooms proposed by the present invention.

[0020] Figure 3 This is a schematic structural diagram of a clamping and fixing device for an Internet of Things data acquisition terminal used in a school classroom, as proposed by the present invention;

[0021] Figure 4 This is a schematic structural diagram of a buffering and shock absorbing device for an Internet of Things data acquisition terminal used in a school classroom, as proposed by the present invention;

[0022] Figure 5 This is a structural schematic diagram of a magnetic shock absorption device for an Internet of Things data acquisition terminal used in school classrooms proposed by the present invention;.

[0023] In the figure: 1. Fixed base plate; 2. Telescopic column; 3. Fixed horizontal plate; 4. Clamping and fixing device; 401. U-shaped fixing frame; 402. Electric push rod; 403. Pushing bracket; 404. Pushing rod; 405. Connecting bracket; 406. Arc-shaped clamping plate; 407. L-shaped sliding plate; 408. Rectangular sleeve plate; 5. Buffering and shock-absorbing device; 501. T-shaped fixing plate; 502. Extrusion spring; 503. Extrusion horizontal frame; 504, pulling crossbar; 505, buffer rod; 506, connecting bracket; 507, V-shaped bracket; 508, abutting cross plate; 6, magnetic shock-absorbing device; 601, mounting bracket; 602, shock-absorbing rod; 603, sliding cross frame; 604, moving vertical plate; 605, first magnet block; 606, guide cross column; 607, fixed vertical plate; 608, second magnet block; 7, fixed column; 8, Internet of Things data acquisition terminal. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-5 The present invention provides a technical solution: an Internet of Things data acquisition terminal for a school classroom, comprising a fixed base plate 1, and telescopic columns 2 are fixedly installed on the four corners of the upper surface of the fixed base plate 1. The function of the telescopic columns 2 is to adjust the height of the entire device to adapt to different installation environments and usage requirements. A fixed horizontal plate 3 is fixedly installed on the upper surface of the telescopic column 2. The fixed horizontal plate 3 provides an installation base for other components and plays a role of connection and support. It integrates the various components together to ensure the stability of the entire device. A clamping fixture 4 is fixedly installed on the four corners of the upper surface of the fixed horizontal plate 3, a buffering and shock-absorbing device 5 is fixedly installed in the middle of the upper surface of the fixed base plate 1, and a magnetic shock-absorbing device 6 is fixedly installed on the four corners of the upper surface of the fixed base plate 1. A fixed column 7 is provided inside the clamping fixture 4, and the fixed column 7 is used to fix the Internet of Things data acquisition terminal 8, so that the Internet of Things data acquisition terminal 8 is stably installed on the entire device. The Internet of Things data acquisition terminal 8 is fixedly installed on the upper surface of the fixed column 7.

[0026] In order to facilitate more stable fixation in the present invention, the clamping and fixing device 4 includes a U-shaped fixing frame 401 fixedly mounted on the upper surface of the fixed horizontal plate 3. The U-shaped fixing frame 401 provides an installation position for components such as the electric push rod 402, so that it can work stably. The inner wall of the U-shaped fixing frame 401 is fixedly mounted with an electric push rod 402. After the electric push rod 402 is started, its output end will push the pushing bracket 403. The function of the electric push rod 402 is to provide power to control the opening and closing of the arc-shaped clamping plate 406, thereby To achieve the clamping and loosening of the fixed column 7, a rotatable pushing rod 404 is provided on the inner side of the pushing bracket 403, and the pushing rod 404 can rotate as the pushing bracket 403 moves. A rotatable connecting bracket 405 is provided on the inner side of the pushing rod 404. Under the action of the pushing rod 404, the connecting bracket 405 drives the arc-shaped clamping plate 406 to move. The inner side of the connecting bracket 405 is fixedly installed with an arc-shaped clamping plate 406. The design of the arc-shaped clamping plate 406 can better fit the shape of the fixed column 7, providing To provide a more stable clamping force, there are four groups of arc-shaped clamping plates 406. The four groups of arc-shaped clamping plates 406 clamp the fixed column 7 from four directions to ensure that the fixed column 7 can be stably fixed in all directions. In addition, the inner walls of the four groups of arc-shaped clamping plates 406 are fixedly installed with rubber strips. On the one hand, the rubber strips can increase the friction force to prevent the fixed column 7 from sliding during the clamping process. The outer side of the arc-shaped clamping plate 406 is fixedly installed with an L-shaped sliding plate 407. The outer surface of the L-shaped sliding plate 407 is slidably provided with a plurality of rubber strips. There is a rectangular sleeve 408 that slides with the inner wall of the fixed horizontal plate 3. The L-shaped sliding plate 407 and the rectangular sleeve 408 cooperate with each other to guide and limit the movement of the arc-shaped clamping plate 406, ensuring the stability and accuracy of the arc-shaped clamping plate 406 during movement. When the electric push rod 402 pushes the pushing bracket 403, the L-shaped sliding plate 407 slides in the rectangular sleeve 408, ensuring that the arc-shaped clamping plate 406 moves in the correct direction, thereby accurately clamping or releasing the fixed column 7.

[0027] In order to facilitate buffering and shock absorption in the present invention, the buffering and shock absorption device 5 includes a T-shaped fixing plate 501 fixedly mounted on the upper surface of the fixed base plate 1. The T-shaped fixing plate 501 provides mounting support for other components and also limits the movement range of components such as the extrusion cross frame 503, so that they work within a specified trajectory. An extrusion spring 502 is fixedly mounted on the inner side of the T-shaped fixing plate 501. The extrusion spring 502 is elastic and will deform when subjected to external force, thereby playing a role in buffering and shock absorption. When the Internet of Things data acquisition terminal is subjected to vibration or impact, the extrusion spring 502 will be compressed, absorbing part of the energy and reducing the impact on the Internet of Things data acquisition terminal. A rotatable extrusion cross frame 503 is provided on the inner side of the extrusion spring 502. The extrusion cross frame 503 can rotate under the action of the extrusion spring 502. A pulling cross bar 504 running through the inside of the T-shaped fixing plate 501 is fixedly mounted on the outer side of the extrusion cross frame 503. The pulling cross bar 504 cooperates with the T-shaped fixing plate 501 to guide the rotation of the extrusion cross frame 503, thereby ensuring that the extrusion cross frame 50 3 can rotate stably. A rotatable buffer rod 505 is provided on the inner side of the extrusion horizontal frame 503. The buffer rod 505 can rotate with the rotation of the extrusion horizontal frame 503, converting the rotation of the extrusion horizontal frame 503 into the up and down movement of the connecting bracket 506. A rotatable connecting bracket 506 is provided on the top of the buffer rod 505. A V-shaped bracket 507 is fixedly installed on the upper surface of the connecting bracket 506. The V-shaped bracket 507 can enhance the supporting force of the abutting horizontal plate 508, so that it can better bear the weight of the Internet of Things data acquisition terminal. An abutting horizontal plate 508 is fixedly installed on the upper surface of the V-shaped bracket 507, and an elongated through hole is opened in the middle of the upper surface of the fixed horizontal plate 3. The size of the elongated through hole is adapted to the size of the abutting horizontal plate 508. When the Internet of Things data acquisition terminal is vibrated, the abutting horizontal plate 508 will move up and down in the elongated through hole with the movement of the buffer rod 505 and other components. The extrusion spring 502 plays a buffering and shock-absorbing role on the abutting horizontal plate 508 by squeezing the horizontal frame 503, the buffer rod 505 and other components, thereby protecting the Internet of Things data acquisition terminal 8.

[0028] In order to facilitate better shock absorption operation in the present invention, the magnetic shock absorption device 6 includes a mounting bracket 601 fixedly mounted on the lower surface of the fixed horizontal plate 3, and the mounting bracket 601 provides a mounting position for components such as the shock absorption rod 602, so that it can work stably. A rotatable shock absorption rod 602 is provided at the bottom of the mounting bracket 601, and the shock absorption rod 602 can rotate with the vibration of the fixed horizontal plate 3. A rotatable sliding cross frame 603 is provided at the bottom of the shock absorption rod 602, and a sliding block is fixedly mounted on the lower surface of the sliding cross frame 603. A sliding groove is provided on the upper surface of the fixed base plate 1, and the sliding block is slidably connected to the sliding groove. This design enables the sliding cross frame 603 to slide smoothly on the fixed base plate 1, thereby enhancing the stability of the device. A movable vertical rod is fixedly mounted on the outer side of the sliding cross frame 603 Plate 604, the outer side surface of the movable vertical plate 604 is fixedly installed with a first magnet block 605, the bottom of the movable vertical plate 604 is provided with a guide circular hole, the guide horizontal column 606 slides inside the guide circular hole, the outer side surface of the guide horizontal column 606 is fixedly installed with a fixed vertical plate 607, and the inner side surface of the fixed vertical plate 607 is fixedly installed with a second magnet block 608. When the Internet of Things data acquisition terminal is vibrated, the sliding horizontal frame 603 will slide on the fixed bottom plate 1, driving the movable vertical plate 604 to move, and the first magnet block 605 and the second magnet block 608 will interact with each other to generate magnetic force, which has a buffering and shock-absorbing effect on the vibration. At the same time, the cooperation of the guide horizontal column 606 and the guide circular hole guides and limits the movement of the movable vertical plate 604, ensuring that the magnetic shock-absorbing device 6 can work stably.

[0029] The electrical components mentioned in this article are all connected to an external main controller and 220V AC power, and the main controller can be a conventional known device that performs control such as a computer.

[0030] During use, when installing the Internet of Things data acquisition terminal 8, the electric push rod 402 in the clamping and fixing device 4 is started, and the output end of the electric push rod 402 pushes the pushing bracket 403 to move inward, and the pushing bracket 403 drives the pushing rod 404 to rotate, and the pushing rod 404 drives the connecting bracket 405 to move, so that the four sets of arc-shaped clamping plates 406 move inward, and the fixed column 7 is tightly clamped, thereby completing the installation of the Internet of Things data acquisition terminal 8. During use, when the Internet of Things data acquisition terminal 8 is vibrated, the buffer shock absorption device 5 and the magnetic shock absorption device 6 start to work. In the buffer shock absorption device 5, the extrusion spring 502 is compressed by the vibration, driving the extrusion cross frame 503 to rotate, and the extrusion cross frame 503 is moved through the buffer rod 505 and the connecting column 7. The connecting bracket 506 enables the V-shaped bracket 507 and the abutting horizontal plate 508 to move up and down in the long strip through hole of the fixed horizontal plate 3 to buffer the vibration. In the magnetic shock-absorbing device 6, the vibration of the fixed horizontal plate 3 causes the shock-absorbing rod 602 to rotate, driving the sliding horizontal frame 603 to slide on the fixed bottom plate 1, and the sliding horizontal frame 603 drives the movable vertical plate 604 to move, so that the first magnet block 605 and the second magnet block 608 interact with each other to generate magnetic force, further buffering the vibration and protecting the Internet of Things data acquisition terminal 8. When disassembling the Internet of Things data acquisition terminal 8, the electric push rod 402 is started to make its output end move in the opposite direction, driving the push bracket 403 to move outward, so that the arc-shaped clamping plate 406 releases the fixed column 7, and the Internet of Things data acquisition terminal 8 can be removed.

[0031] To sum up, the Internet of Things data acquisition terminal for school classrooms drives the push rod 404 and the connecting bracket 405 to push the arc clamping plate 406 inward through the electric push rod 402 and the pushing bracket 403. The installation and disassembly of the Internet of Things data acquisition terminal 8 is simpler and more efficient, which greatly saves the time and labor costs of installation and disassembly. When the Internet of Things data acquisition terminal 8 needs to be maintained, replaced or adjusted, the staff can easily complete the relevant operations, thereby improving work efficiency.

[0032] The Internet of Things data acquisition terminal for school classrooms can buffer and reduce shock to the Internet of Things data acquisition terminal 8 by driving the extrusion cross frame 503 and the buffer rod 505 under the action of the extrusion spring 502's own elastic force to cooperate with the V-shaped bracket 507 and the abutting cross plate 508, which can effectively reduce the impact of external vibrations and impacts on the Internet of Things data acquisition terminal 8, so that the Internet of Things data acquisition terminal 8 has a better buffering and shock-absorbing effect, which helps to make it safer and more stable to use.

[0033] The Internet of Things data acquisition terminal for school classrooms cooperates with the first magnet block 605 and the second magnet block 608 to drive the sliding cross frame 603 and the shock-absorbing rod 602 to provide auxiliary buffering effect on the Internet of Things data acquisition terminal 8, thereby further improving the stability of the Internet of Things data acquisition terminal 8, reducing the damage to the Internet of Things data acquisition terminal 8 caused by vibration, ensuring its stable operation, and extending its service life.

[0034] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An Internet of Things data acquisition terminal for a school classroom, comprising a fixed base plate (1), four corners of the upper surface of the fixed base plate (1) are fixedly mounted with telescopic columns (2), and the upper surface of the telescopic columns (2) is fixedly mounted with a fixed horizontal plate (3), characterized in that: The four corners of the upper surface of the fixed horizontal plate (3) are fixedly mounted with clamping and fixing devices (4), the middle part of the upper surface of the fixed base plate (1) is fixedly mounted with a buffering and shock absorbing device (5), the four corners of the upper surface of the fixed base plate (1) are fixedly mounted with a magnetic shock absorbing device (6), a fixed column (7) is provided inside the clamping and fixing device (4), and an Internet of Things data acquisition terminal (8) is fixedly mounted on the upper surface of the fixed column (7).

2. The Internet of Things data acquisition terminal for school classrooms according to claim 1, characterized in that: The clamping and fixing device (4) comprises a U-shaped fixing frame (401) fixedly mounted on the upper surface of the fixed transverse plate (3); an electric push rod (402) is fixedly mounted on the inner wall of the U-shaped fixing frame (401); a pushing bracket (403) is fixedly mounted on the output end of the electric push rod (402); a rotatable pushing rod (404) is provided on the inner side of the pushing bracket (403); a rotatable connecting bracket (405) is provided on the inner side of the pushing rod (404); an arc-shaped clamping plate (406) is fixedly mounted on the inner side of the connecting bracket (405); an L-shaped sliding plate (407) is fixedly mounted on the outer side of the arc-shaped clamping plate (406); and a rectangular sleeve (408) is slidably mounted on the outer surface of the L-shaped sliding plate (407) and slides relative to the inner wall of the fixed transverse plate (3).

3. The Internet of Things data acquisition terminal for school classrooms according to claim 1, characterized in that: The buffering and shock absorbing device (5) comprises a T-shaped fixing plate (501) fixedly mounted on the upper surface of the fixed base plate (1); a pressing spring (502) is fixedly mounted on the inner side of the T-shaped fixing plate (501); a rotatable pressing cross frame (503) is provided on the inner side of the pressing spring (502); a pulling cross bar (504) penetrating the interior of the T-shaped fixing plate (501) is fixedly mounted on the outer side of the pressing cross frame (503); a rotatable buffer rod (505) is provided on the inner side of the pressing cross frame (503); a rotatable connecting bracket (506) is provided on the top of the buffer rod (505); a V-shaped bracket (507) is fixedly mounted on the upper surface of the connecting bracket (506); and an abutting cross plate (508) is fixedly mounted on the upper surface of the V-shaped bracket (507).

4. The Internet of Things data acquisition terminal for school classrooms according to claim 1, characterized in that: The magnetic shock-absorbing device (6) comprises a mounting bracket (601) fixedly mounted on the lower surface of the fixed horizontal plate (3); a rotatable shock-absorbing rod (602) is provided at the bottom of the mounting bracket (601); a rotatable sliding horizontal frame (603) is provided at the bottom of the shock-absorbing rod (602); a movable vertical plate (604) is fixedly mounted on the outer side surface of the sliding horizontal frame (603); a first magnet block (605) is fixedly mounted on the outer side surface of the movable vertical plate (604); a slidable guide horizontal column (606) is provided at the bottom of the movable vertical plate (604); a fixed vertical plate (607) is fixedly mounted on the outer side surface of the guide horizontal column (606); and a second magnet block (608) is fixedly mounted on the inner side surface of the fixed vertical plate (607).

5. The Internet of Things data acquisition terminal for school classrooms according to claim 4, characterized in that: A sliding block is fixedly mounted on the lower surface of the sliding cross frame (603), and a sliding groove is provided on the upper surface of the fixed base plate (1), and the sliding block is slidably connected to the sliding groove.

6. The Internet of Things data acquisition terminal for school classrooms according to claim 2, characterized in that: The number of the arc-shaped clamping plates (406) is four groups, and rubber strips are fixedly installed on the inner walls of the four groups of arc-shaped clamping plates (406).

7. The Internet of Things data acquisition terminal for school classrooms according to claim 3, characterized in that: A long strip through hole is provided in the middle of the upper surface of the fixed transverse plate (3), and the size of the long strip through hole is adapted to the size of the abutting transverse plate (508).

8. The Internet of Things data acquisition terminal for school classrooms according to claim 4, characterized in that: A guide circular hole is provided at the bottom of the movable vertical plate (604), and the guide horizontal column (606) slides inside the guide circular hole.

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