Teaching device combining mortise and tenon joint structure and electronic system

By designing a teaching device that combines mortise and tenon structures with electronic systems, the problem of lack of artificial intelligence in existing teaching is solved, the dynamic display of mortise and tenon structures and the stimulation of students' interests is realized, and the understanding of traditional craftsmanship is enhanced.

CN223022813UActive Publication Date: 2025-06-24BEIJING SAISHU TECH CO LTD
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Patent Information

Application Number
CN202422260400.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-14
Publication Date
2025-06-24
Estimated Expiration
2034-09-14

AI Technical Summary

Technical Problem

The teaching of existing mortise and tenon structures is limited to the explanation of wooden structures, and the lack of combination with artificial intelligence has led to insufficient interest and understanding of mortise and tenon structures.

Method used

A teaching device combining mortise and tenon structure and electronic system is designed. Through two boxes arranged symmetrically on the left and right, box cover, box dovetail pin, control motherboard module, motor module, omnidirectional wheel, camera module and handle, the dynamic display of mortise and tenon structure and the integration of artificial intelligence are realized.

Benefits of technology

By integrating mortise and tenon wooden structures and computing boards, image processing and graphical programming are realized, students are interested in mortise and tenon structures, deepen their understanding of traditional mortise and tenon processes, and perfectly combine technology with traditional crafts.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a teaching device combining a mortise and tenon joint structure and an electronic system, which belongs to the field of teaching equipment, and comprises two box bodies, box covers, a box main body plate a and a box main body plate b, the two box covers are connected through a connecting mechanism, and the box covers are connected with the box bodies through locking mechanisms. The box main body plate a and the box main body plate b are connected through box body dovetail tenon pins, a control mainboard module, a second motor module, a battery module and a first motor module are arranged in the mounting cavities in the left side and the right side, and omnidirectional wheels are arranged at the output ends of the second motor module and the first motor module; one side of the box main body plate b is connected with a fixing plate through a main body dovetail tenon pin, and the two fixing plates are connected through a box body fixing cylindrical tenon; a handle is further included. According to the utility model, a tenon-and-mortise wooden structure, a calculation board card, a control circuit board, a handle and a computer end graphical programming are integrated; a product of a wooden structure integrates a high-performance computing board card, and the functions of image processing, graphical programming and the like can be achieved.
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Description

Technical Field

[0001] The utility model relates to the field of teaching equipment, in particular to a teaching device combining a mortise and tenon structure with an electronic system. Background Technique

[0002] The mortise and tenon structure is a unique woodworking technique in China, which occupies an important position in ancient Chinese architecture and has high historical value. However, with the gradual development of society, more and more high-quality building materials have replaced manual woodworking, which has gradually made the mortise and tenon process based on wood disappear, and people's attention to mortise and tenon has also become less and less. At present, the teaching of the mortise and tenon structure only explains the wooden structure and does not combine with artificial intelligence. Content of the Utility Model

[0003] The purpose of the utility model is to provide a teaching device combining a mortise and tenon structure with an electronic system, so as to solve the problem that the current teaching of the mortise and tenon structure only explains the wooden structure and does not combine with artificial intelligence.

[0004] To solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A teaching device combining a mortise and tenon structure with an electronic system of the utility model includes two boxes arranged symmetrically left and right. A box cover is arranged above the box. The two box covers are connected together through a connection mechanism. The box cover is connected to the box through a locking mechanism. On one side of the two boxes close to each other, there are a box main board a and a box main board b. The box main board a and the box main board b are connected together through a box dovetail tenon pin. In the installation cavity between the box on the left side and the box main board a, there are a control main board module and a second motor module. In the installation cavity between the box on the right side and the box main board a, there are a battery module and a first motor module. Omnidirectional wheels are arranged at the output ends of the second motor module and the first motor module. On the side of the box main board b away from the box main board a, there is a fixing plate connected through a main dovetail tenon pin. The two fixing plates are connected together through a box fixing cylindrical tenon head. A camera module is arranged at a position close to the front side between the two fixing plates; It also includes a handle. The handle sends remote control data to the control main board module through a wireless module to control the movement of the main structure.

[0006] Further, the box includes a first box board, and second box boards are connected to the front and rear sides of the first box board through connection tenon pins.

[0007] Furthermore, a clamping block is arranged on the end face of the second box board, and a clamping groove matching the clamping block is arranged on the box main board a.

[0008] Furthermore, the connecting mechanism includes four hinge b's. The four hinge b's are divided into two groups. The two groups of hinge b's are respectively arranged on the top surfaces of the two box lids. On the front and rear sides of each group of hinge b's, hinge a's are provided. The two hinge a's are connected to a group of hinge b's through hinge pins.

[0009] Furthermore, each group of hinge b's includes two hinge b's. The two hinge b's are arranged side by side in the front and rear. A hinge bushing is arranged between the front and rear two hinge b's. The hinge pin sequentially penetrates through the hinge a, the hinge b, the hinge bushing, the other hinge b, and the other hinge a and then is connected to a pin tenon.

[0010] Furthermore, the locking mechanism includes an upper connecting seat and a lower connecting seat. The lower connecting seat is arranged on the outer side of the first box board. The upper connecting seat is arranged on the outer side of the box lid. After the upper connecting seat and the lower connecting seat are aligned, they are locked and positioned through a lock pin.

[0011] Furthermore, the structures of the first motor module and the second motor module are the same. The first motor module includes a wrapping outer shell a and a wrapping outer shell b. First tenons and second tenons are respectively arranged on the tops of the wrapping outer shell a and the wrapping outer shell b. Motor housing fixing tenon grooves are arranged on the outer sides of the first tenon and the second tenon. A motor is arranged inside the wrapping outer shell a and the wrapping outer shell b. The output end of the motor is connected to a motor shaft. The motor shaft penetrates through the wrapping outer shell a and then is connected to the omnidirectional wheel.

[0012] Furthermore, the control main board module includes a board card bottom shell. A computing board card and a circuit board are arranged inside the board card bottom shell. A board card upper cover is arranged on the other side of the circuit board. The board card upper cover is connected to the board card bottom shell through a first connecting tenon.

[0013] Furthermore, the omnidirectional wheel includes two wheel groups. A wheel shaft is arranged at the center of the two wheel groups. The wheel shaft is connected to the motor shaft. Each wheel group includes two hubs. Six rollers are arranged between the two hubs. The roller shaft at the center of the rollers is rotationally connected to the hub through a bearing. The two hubs are connected together through hub pins.

[0014] Furthermore, the handle includes a handle bottom shell and a handle upper cover. The handle bottom shell and the handle upper cover are connected together through a second connecting tenon. A handle main board is arranged between the handle bottom shell and the handle upper cover. A handle rocker, a front button, a handle direction button, and a light guide column are arranged on the top surface of the handle upper cover. A side button is arranged on the side surface of the handle upper cover. A handle battery compartment cover is arranged below the handle bottom shell.

[0015] Compared with the prior art, the beneficial technical effects of the present utility model are as follows:

[0016] The present utility model integrates a mortise and tenon wooden structure, a computing board, a control circuit board, a handle, and graphical programming on the computer side. The wooden structure product integrates a high-performance computing board, which can realize functions such as image processing and graphical programming. The present utility model is targeted at all students, a product that combines mortise and tenon with artificial intelligence, perfectly integrating technology and traditional craftsmanship. It allows students to feel and learn the essence of excellent traditional Chinese culture in the process of layer-by-layer assembly of mortise and tenon joints. At the same time, with a computing board and control system with a certain computing power, it supports students to use graphical programming or Python programming to control the assembled mortise and tenon structure, thereby stimulating students' interest in the mortise and tenon structure and deepening their understanding of traditional mortise and tenon craftsmanship. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present utility model will be further described below in conjunction with the accompanying drawings.

[0018] Figure 1 It is a schematic structural diagram of the teaching device combining the mortise and tenon structure and the electronic system of the present utility model;

[0019] Figure 2 It is a schematic structural diagram of the disassembled state of the teaching device combining the mortise and tenon structure and the electronic system of the present utility model;

[0020] Figure 3 It is a schematic structural diagram of the first motor module of the present utility model;

[0021] Figure 4 It is a schematic structural diagram of the control main board module of the present utility model;

[0022] Figure 5 It is a schematic structural diagram of the computing board of the present utility model;

[0023] Figure 6 It is a schematic structural diagram of the computing board of the present utility model from another angle;

[0024] Figure 7 It is a schematic structural diagram of the disassembled state of the omnidirectional wheel of the present utility model;

[0025] Figure 8 It is a schematic structural diagram of the disassembled state of the handle of the present utility model;

[0026] Figure 9 It is a schematic structural diagram of the control circuit board of the present utility model.

[0027] Description of the reference numerals: 1. Box body; 2. Main box board a; 3. Main box board b; 4. Dovetail tenon pin of the box body; 5. Box cover; 6. Hinge a; 7. Hinge b; 8. Hinge bushing; 9. Hinge pin; 10. Pin tenon head; 11. Upper connecting seat; 12. Lower connecting seat; 13. Lock pin; 14. Battery module; 15. First motor module; 16. Control main board module; 17. Second motor module; 18. Omnidirectional wheel; 19. Fixed plate; 20. Main dovetail tenon pin; 21. Fixed cylindrical tenon head of the box body; 22. Camera module; 23. Handle

[0028] 1-1. First box board; 1-2. Second box board; 1-2-1. Block; 1-3. Connecting tenon pin; 2-1. Card slot; 15-1. Wrapping shell a; 15-1-1. First tenon block; 15-2. Wrapping shell b; 15-2-1. Second tenon block; 15-3. Fixed tenon groove of the motor shell; 15-4. Motor; 15-5. Motor shaft; 16-1. Bottom case of the board card; 16-2. Upper cover of the board card; 16-3. Computing board card; 16-3-1. Ethernet; 16-3-2. Hardware platform interface; 16-3-3. USB interface; 16-3-4. Power supply interface; 16-3-5. SD card interface; 16-3-6. Heat dissipation device; 16-4. Circuit board; 16-5. First connecting tenon; 18-1. Wheel hub; 18-2. Roller; 18-3. Roller shaft; 18-4. Bearing; 18-5. Graphite gasket; 18-6. Wheel hub pin; 23-1. Bottom case of the handle; 23-2. Upper cover of the handle; 23-3. Main board of the handle; 23-4. Battery compartment cover of the handle; 23-5. Second connecting tenon; 23-6. Handle rocker; 23-7. Front button; 23-8. Direction button of the handle; 23-9. Side button; 23-10. Light guide column Detailed implementation manners

[0029] As Figures 1-9As shown in the figure, a teaching device combining a mortise and tenon structure with an electronic system includes two boxes 1 arranged symmetrically on the left and right. A box cover 5 is installed above the box 1. The two box covers 5 are connected together by a connecting mechanism. The box cover 5 is connected to the box 1 through a locking mechanism. On one side of the two boxes 1 close to each other, there are a box main board a2 and a box main board b3. The box main board a2 and the box main board b3 are connected together by a box dovetail tenon pin 4. In the installation cavity between the box 1 on the left and the box main board a2, a control main board module 16 and a second motor module 17 are installed. In the installation cavity between the box 1 on the right and the box main board a2, a battery module 14 and a first motor module 15 are installed. Omnidirectional wheels 18 are installed at the output ends of the second motor module 17 and the first motor module 15. On the side of the box main board b3 away from the box main board a2, a fixing plate 19 is connected by a main dovetail tenon pin 20. The two fixing plates 19 are connected together by a box fixing cylindrical tenon head 21. A camera module 22 is arranged at a position close to the front side between the two fixing plates 19. It also includes a handle 23. The handle 23 sends remote control data to the control main board module 16 through a wireless module to control the movement of the main structure. Specifically, in this embodiment, the fixing plate 19 is set as a horse body, and the fixing plate 19 can also be set in other shapes. The control main board module, the motor module, and the battery module use the designed wooden structure to assemble the circuit board and electronic modules, leaving only the circuit interfaces of the electronic modules for convenient connection of external wires.

[0030] The main dovetail tenon pin 20 includes two vertically arranged dovetail tenon pins with different lengths. The two dovetail tenon pins are symmetrically connected together. One dovetail tenon pin is inserted into the tenon pin groove of the box main board b3, and the other dovetail tenon pin is inserted into the tenon pin groove of the fixing plate 19.

[0031] The box 1 includes a first box board 1-1. The front and rear sides of the first box board 1-1 are connected to a second box board 1-2 by connecting tenon pins 1-3.

[0032] A clamping block 1-2-1 is connected to the end face of the second box board 1-2. A clamping groove 2-1 matching the clamping block 1-2-1 is opened on the box main board a2. During installation, the clamping block 1-2-1 is inserted into the clamping groove 2-1 to connect the box main board a2 and the second box board 1-2 together.

[0033] The connecting mechanism includes four hinges b7. The four hinges b7 are divided into two groups, and the two groups of hinges b7 are respectively connected to the top surfaces of the two box lids 5. On the front and rear sides of each group of hinges b7, hinges a6 are provided. The two hinges a6 are connected to a group of hinges b7 through hinge pins 9. Specifically, each group of hinges b7 includes two hinges b7, and the two hinges b7 are arranged side by side in the front and rear. A hinge bushing 8 is provided between the front and rear hinges b7. The hinge pin 9 sequentially passes through the hinge a6, the hinge b7, the hinge bushing 8, the other hinge b7, and the other hinge a6 and then is connected to a pin tenon 10.

[0034] The locking mechanism includes an upper connecting seat 11 and a lower connecting seat 12. The lower connecting seat 12 is connected to the outside of the first box board 1-1, and the upper connecting seat 11 is connected to the outside of the box lid 5. After the upper connecting seat 11 and the lower connecting seat 12 are aligned, they are locked and positioned through a lock pin 13.

[0035] The structures of the first motor module 15 and the second motor module 17 are the same. Taking the first motor module 15 as an example, its specific structure is introduced as follows. Figure 3 As shown, the first motor module 15 includes a wrapping shell a15-1 and a wrapping shell b15-2. First tenons 15-1-1 and second tenons 15-2-1 are respectively connected to the tops of the wrapping shell a15-1 and the wrapping shell b15-2. A motor housing fixing mortise 15-3 is installed on the outer sides of the first tenon 15-1-1 and the second tenon 15-2-1. After the first tenon 15-1-1 and the second tenon 15-2-1 are spliced together, the motor housing fixing mortise 15-3 is installed on the outer sides of the first tenon 15-1-1 and the second tenon 15-2-1, so as to connect the wrapping shell a15-1 and the wrapping shell b15-2 together. A motor 15-4 is installed inside the wrapping shell a15-1 and the wrapping shell b15-2. The output end of the motor 15-4 is connected to a motor shaft 15-5. The motor shaft 15-5 passes through the wrapping shell a15-1 and is connected to the omnidirectional wheel 18. The structure of the second motor module 17 is the same as that of the first motor module 15, and its specific structure will not be elaborated here. The motor module includes a wooden wrapping shell a, a wooden wrapping shell b, a motor shaft, a motor, and a motor housing fixing mortise. The motor shaft is inserted into the D-shaped shaft of the motor, and then the motor is wrapped inside with the wooden wrapping shells a and b.

[0036] As Figure 4As shown, the control main board module 16 includes a board bottom shell 16-1. Inside the board bottom shell 16-1, a computing board 16-3 and a circuit board 16-4 are installed. On the other side of the circuit board 16-4, there is a board upper cover 16-2. The board upper cover 16-2 is connected to the board bottom shell 16-1 through a first connecting tenon 16-5; As Figure 5 shown, on one side of the computing board 16-3, an Ethernet 16-3-1, a hardware platform interface 16-3-2, a USB interface 16-3-3, and a power supply interface 16-3-4 are installed. As Figure 6 shown, on the other side of the computing board 16-3, an SD card interface 16-3-5 and a heat dissipation device 16-3-6 are installed; The control main board module includes a board upper cover, a board bottom shell, a circuit board, a computing board, and a connecting tenon. The circuit board and the computing board are connected through a hardware platform interface, and then assembled with a wooden board upper cover and a board bottom shell for protection. The surface of the board bottom shell is hollowed out, which is beneficial to the heat dissipation of the computing board; The computing board 16-3 and the circuit board 16-4 both adopt existing technologies and can be obtained by purchase. Their specific structures, working principles, and circuit connection methods are all existing technologies and will not be elaborated here.

[0037] The circuit board 16-4 consists of a power switch, a charging circuit, a voltage stabilizing circuit, a motor drive circuit, an encoder circuit, a wireless receiving module circuit, a buzzer circuit, an indicator light circuit, a minimum system of a single chip microcomputer, and an interface circuit. As Figure 9 shown.

[0038] The charging circuit is used to charge the battery.

[0039] The power switch controls the on / off of the total power supply of the circuit.

[0040] The voltage stabilizing circuit is mainly used to supply power to each drive circuit, encoder circuit, indicator light circuit, and the minimum system of the single chip microcomputer, enabling each circuit to work normally.

[0041] The motor drive circuit is used to drive the motor module, driving the omnidirectional wheels to move the whole wooden structure.

[0042] The encoder circuit is used to collect the motor speed. After the single chip microcomputer collects the motor speed, it calculates and outputs a control signal to the motor drive circuit to adjust the motor speed.

[0043] The wireless receiving circuit mainly receives wireless handle signals. The single chip microcomputer recognizes the key information of the handle and controls the rotation of the motor.

[0044] The buzzer circuit is controlled by the single chip microcomputer to emit sound, which is used to prompt the user about the low voltage, fault, and other states of the product.

[0045] The indicator light circuit is controlled by the single chip microcomputer and is used to indicate the operating state.

[0046] The fan drive circuit can supply power to an external fan for cooling the computing power hardware platform.

[0047] The camera interface circuit facilitates connecting an external camera to the computing board through the control circuit board.

[0048] As Figure 7 shown, the omnidirectional wheel 18 includes two wheel groups. A wheel axle is connected to the centers of the two wheel groups, and the wheel axle is connected to the motor axle 15-5 or the motor axle in the second motor module 17; each wheel group includes two hubs 18-1, and six rollers 18-2 are arranged between the two hubs 18-1. The roller axle 18-3 at the center of the roller 18-2 is rotatably connected to the hub 18-1 through a bearing 18-4. A graphite gasket 18-5 is also sleeved on the roller axle 18-3. The two hubs 18-1 are connected together by a hub pin 18-6; the omnidirectional wheel is mainly composed of 12 wooden rollers, 12 roller axles, and 4 hubs, and is fixedly formed into a complete omnidirectional wheel through the connection and fixation of the hub pin 18-6. The omnidirectional wheel is fixedly connected to the motor axle and is driven by the motor to rotate.

[0049] As Figure 8 shown, the handle 23 includes a handle bottom shell 23-1 and a handle upper shell 23-2. The handle bottom shell 23-1 and the handle upper shell 23-2 are connected together by a second connecting tenon 23-5. A handle main board 23-3 is installed between the handle bottom shell 23-1 and the handle upper shell 23-2. A handle rocker 23-6, a front button 23-7, a handle direction button 23-8, and a light guide column 23-10 are installed on the top surface of the handle upper shell 23-2. A side button 23-9 is installed on the side surface of the handle upper shell 23-2. A handle battery compartment cover 23-4 is installed below the handle bottom shell 23-1; the handle 23 is a wooden handle, and the wooden handle is mainly composed of 2 handle rockers, 6 front buttons, 2 side buttons, 1 direction button, a handle upper shell, a handle bottom shell, a handle battery compartment cover, and a handle main board. Except for the light guide column and the handle main board, other parts are all of wooden structure; the handle main board is controlled by a single-chip microcomputer and sends remote control data to the control main board module through a wireless module to control the movement of the main body structure.

[0050] The usage process of the present utility model is as follows:

[0051] First, students assemble the device using the mortise and tenon structure; then, the handle 23 sends remote control data to the control main board module 16 through the wireless module, and the control main board module 16 controls the first motor module 15 and the second motor module 17 to work, driving the omnidirectional wheel 18 to rotate, thereby driving the entire device to move.

[0052] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A teaching device combining a mortise and tenon structure with an electronic system, characterized in that: The invention comprises two boxes (1) arranged symmetrically on the left and right, a box cover (5) is arranged on the top of the box (1), the two box covers (5) are connected together by a connecting mechanism, the box cover (5) is connected to the box (1) by a locking mechanism, a box main body plate a (2) and a box main body plate b (3) are arranged on the side close to each other of the two boxes (1), the box main body plate a (2) and the box main body plate b (3) are connected together by a box dovetail pin (4), a control main board module (16) and a second motor module (17) are arranged in the installation cavity between the box (1) and the box main body plate a (2) on the left, and a control main board module (16) and a second motor module (17) are arranged in the installation cavity between the box (1) and the box main body plate a (2) on the right. A battery module (14) and a first motor module (15) are arranged in the installation cavity between the two boxes (2); the output ends of the second motor module (17) and the first motor module (15) are both provided with omnidirectional wheels (18); the side of the box body plate b (3) away from the box body plate a (2) is connected to a fixing plate (19) through a main body dovetail pin (20); the two fixing plates (19) are connected together through a box body fixing cylindrical tenon (21); a camera module (22) is arranged between the two fixing plates (19) near the front side; and a handle (23) is also included, and the handle (23) sends remote control data to the control main board module (16) through a wireless module, thereby controlling the movement of the main structure.

2. The teaching device combining the mortise and tenon structure with the electronic system according to claim 1, characterized in that: The box body (1) comprises a first box plate (1-1), and the front and rear sides of the first box plate (1-1) are connected to a second box plate (1-2) via connecting pins (1-3).

3. The teaching device combining the mortise and tenon structure with the electronic system according to claim 2, characterized in that: A card block (1-2-1) is arranged on the end surface of the second box plate (1-2), and a card slot (2-1) matching the card block (1-2-1) is arranged on the box main body plate a (2).

4. The teaching device combining the mortise and tenon structure with the electronic system according to claim 1, characterized in that: The connecting mechanism comprises four hinges b (7), the four hinges b (7) are divided into two groups, the two groups of hinges b (7) are respectively arranged on the top surfaces of the two box covers (5), and hinges a (6) are arranged on the front and rear sides of each group of hinges b (7), and the two hinges a (6) are connected to one group of hinges b (7) through hinge pins (9).

5. The teaching device combining the mortise and tenon structure with the electronic system according to claim 4, characterized in that: Each group of hinges b (7) comprises two hinges b (7), the two hinges b (7) are arranged in parallel front and back, a hinge sleeve (8) is arranged between the two hinges b (7) front and back, and the hinge pin (9) passes through the hinge a (6), the hinge b (7), the hinge sleeve (8), another hinge b (7), another hinge a (6) in sequence and is connected to the pin tenon (10).

6. The teaching device combining the mortise and tenon structure with the electronic system according to claim 2, characterized in that: The locking mechanism comprises an upper connecting seat (11) and a lower connecting seat (12); the lower connecting seat (12) is arranged on the outer side of the first box plate (1-1); the upper connecting seat (11) is arranged on the outer side of the box cover (5); and the upper connecting seat (11) is aligned with the lower connecting seat (12) and locked in place by a locking pin (13).

7. The teaching device combining the mortise and tenon structure with the electronic system according to claim 1, characterized in that: The first motor module (15) and the second motor module (17) have the same structure; the first motor module (15) comprises a wrapping shell a (15-1) and a wrapping shell b (15-2); the tops of the wrapping shell a (15-1) and the wrapping shell b (15-2) are respectively provided with a first tenon block (15-1-1) and a second tenon block (15-2-1); the outer sides of the first tenon block (15-1-1) and the second tenon block (15-2-1) are provided with a motor shell fixing tenon groove (15-3); the insides of the wrapping shell a (15-1) and the wrapping shell b (15-2) are provided with a motor (15-4); the output end of the motor (15-4) is connected to a motor shaft (15-5); the motor shaft (15-5) passes through the wrapping shell a (15-1) and is connected to the omnidirectional wheel (18).

8. The teaching device combining the mortise and tenon structure with the electronic system according to claim 1, characterized in that: The control mainboard module (16) comprises a board bottom shell (16-1), a computing board (16-3) and a circuit board (16-4) are arranged inside the board bottom shell (16-1), a board top cover (16-2) is arranged on the other side of the circuit board (16-4), and the board top cover (16-2) is connected to the board bottom shell (16-1) via a first connecting tenon (16-5).

9. The teaching device combining the mortise and tenon structure with the electronic system according to claim 7, characterized in that: The omnidirectional wheel (18) comprises two wheel groups, wherein a wheel axle is arranged at the center of the two wheel groups, and the wheel axle is connected to the motor shaft (15-5); the wheel group comprises two wheel hubs (18-1), and six rollers (18-2) are arranged between the two wheel hubs (18-1), and the roller shaft (18-3) at the center of the roller (18-2) is rotatably connected to the wheel hub (18-1) through a bearing (18-4), and the two wheel hubs (18-1) are connected together through a wheel hub pin (18-6).

10. The teaching device combining the mortise and tenon structure with the electronic system according to claim 1, characterized in that: The handle (23) comprises a handle bottom shell (23-1) and a handle upper cover (23-2); the handle bottom shell (23-1) and the handle upper cover (23-2) are connected together via a second connecting tenon (23-5); a handle main board (23-3) is arranged between the handle bottom shell (23-1) and the handle upper cover (23-2); a handle rocker (23-6), a front button (23-7), a handle direction button (23-8) and a light guide column (23-10) are arranged on the top surface of the handle upper cover (23-2); a side button (23-9) is arranged on the side of the handle upper cover (23-2); and a handle battery compartment cover (23-4) is arranged below the handle bottom shell (23-1).