Advanced mathematics teaching aid

Abstract

The invention provides an advanced mathematics teaching aid which structurally comprises a teaching aid main board, adjusting structures, a small object storage box, a base and a parallel plate, the left side and the right side of the teaching aid main board are in penetrating contact with the adjusting structures, and the small object storage box is covered in parallel through the adjusting structures; the adjusting structure and the small article storage box are vertically mounted on the surface layer of the base; the lower end of the base is connected with a parallel plate; on the basis of two groups of adjusting structures on the base, the rotating rod parallelly restrains the two groups of rotating pulleys through the rotating grooves of the two groups of supporting blocks and the auxiliary blocks, and then the teaching aid main board can vertically stand on the base or parallelly cover the upper layer of the base by utilizing the rotating pulleys in a manual adjusting mode, so that the direction of the teaching aid main board can be changed; therefore, different teaching aids of the teaching aid main board can select appropriate positions for auxiliary teaching according to different teaching contents, so that the use intensity of the advanced mathematics teaching aid can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of higher mathematics teaching aids, and more specifically to a higher mathematics teaching aid. Background Art

[0002] Higher mathematics is an important course in college mathematics. It is the foundation and core of mathematics. At the same time, in the process of teaching higher mathematics, appropriate teaching aids can be used according to relevant content. It can be divided into geometric model teaching aids, magnetic teaching aids, experimental equipment, transparent teaching aids, frame models and other teaching aids. Therefore, through appropriate teaching aids, the convenience of mathematics teaching can be improved, and the demonstration of physical objects and the lecture of theories can enhance the understanding intensity and convenience of higher mathematics knowledge; In summary, the inventor found that the existing higher mathematics teaching aids mainly have the following defects: due to the large variety of current higher mathematics teaching aids, it is necessary to select appropriate teaching aids according to relevant content every time they are used, which will reflect the tediousness during selection and cannot combine multiple teaching aids into one for use. Therefore, the single function of the current teaching aids will be reflected, and thus the convenience of using the teaching aids will be reduced. Summary of the Invention

[0003] The technical solution adopted by the present invention to achieve the technical purpose is: a higher mathematics teaching aid, the structure of which includes: a teaching aid main board, an adjustment structure, a small object storage box, a base, and a parallel plate. The left and right sides of the teaching aid main board are in insertion contact with the adjustment structure, and the small object storage box is horizontally covered through the adjustment structure. The adjustment structure and the small object storage box are vertically installed on the surface of the base, and a parallel plate is also connected to the lower end of the base, and the two are parallel to each other.

[0004] As a further improvement of the present invention, the adjustment structure is provided with a rotating pulley. The center of the rotating pulley is connected to a rotating rod, and the rotating rod passes through the center of the auxiliary block through a rotating groove. The bottom of the auxiliary block is welded with a support block to complete the vertical insertion and fixed connection with the surface of the base.

[0005] As a further improvement of the present invention, the rotating pulley is further provided with a contact ring. The contact ring covers the edge of the wheel body, and the center of the wheel body is connected with an adapter body. A threaded groove is opened at the center of the upper end of the adapter body, and an external thread layer is provided on the outer edge of the lower end of the adapter body to complete the locking and fixed connection with one end of the rotating rod.

[0006] As a further improvement of the present invention, small magnetic teaching aids and other objects are stored in the small object storage box on the base, and then the rotating rod is positioned by the support blocks and auxiliary blocks of the two adjustment structures, so that the rotating pulley drives the rotating rod to rotate smoothly to drive the teaching aid main board to be adjusted vertically or horizontally. The wheel body of the rotating pulley contacts the teaching aid main board through the contact ring and then completes the connection with the rotating rod by using the external thread layer of the central adapter body.

[0007] As a further improvement of the present invention, the area of the teaching aid main board is smaller than that of the base, and manual adjustment in the vertical and parallel directions is carried out through two groups of adjustment structures. The height of the small object storage box is smaller than that of the adjustment structures, so that the teaching aid main board can cover it, and the base and the parallel plate coincide with each other.

[0008] As a further improvement of the present invention, the rotating pulley coincides with the center of the rotating rod, and the rotating rod passes through the centers of two groups of auxiliary blocks and is parallelly installed on the base by support blocks to enable the rotating pulley to rotate smoothly.

[0009] As a further improvement of the present invention, the contact ring covers the outside of the wheel body and is inserted into contact with both sides of the surface of the teaching aid main board. The connecting body of the wheel body is spliced with the wheel body in a vertically penetrating connection manner. The threaded groove is arranged at the center of the top of the connecting body, and the external thread layer is arranged at the bottom edge of the connecting body.

[0010] As a further improvement of the present invention, the teaching aid main board is provided with a grid line board, which is embedded in the upper part of the drawing board and the two are parallelly embedded in the central area of the surface of the assembly board. A magnetic attraction board is also arranged on the back of the assembly board. Slide rails are opened on both the left and right sides of the assembly board to contact the rotating pulley, and locking grooves are opened in the outer edge area of the slide rails to allow the locking bolts to penetrate and complete the threaded fixed connection with the threaded groove of the connecting body of the rotating pulley.

[0011] As a further improvement of the present invention, the grid line board is located at the top of the drawing board, and the surface of the magnetic attraction board on the back of the assembly board is in a flat state. The two slide rails of the assembly board are both opened in a straight line direction and are symmetrically distributed. Two groups of locking grooves and locking bolts are respectively arranged on the outer edges of the two slide rails.

[0012] As a further improvement of the present invention, the grid line board is also provided with an insertion layer, which covers the surface layer of the rubber board, and a metal block is fixed by an insertion rod connected to the center of the back of the rubber board.

[0013] As a further improvement of the present invention, a plurality of small circular holes are opened on the surface of the insertion layer and communicate with the surface of the rubber board. The rubber board is perpendicular to the insertion rod. The metal block of the insertion rod is in a solid state and can be adsorbed inside the magnetic attraction board after being inserted into the assembly board through the cooperation of the insertion rod.

[0014] As a further improvement of the present invention, the parallel plate is also provided with anti-slip blocks, which are fixed at the edge position of the surface layer of the solid plate body, and a clamping frame is connected to the center of the solid plate body. The bottom plate is positioned through the clamping frame, and a locking structure is connected to the surface layer of the bottom plate to fix the small object storage box.

[0015] As a further improvement of the present invention, two anti-slip blocks are provided in total at the edge area of the surface layer of the solid plate body and are set in a symmetrical orientation. The clamping frame of the solid plate body covers the edge of the bottom plate, and three groups of locking structures are connected to the surface of the bottom plate to fix the bottom of the small object storage box at the left, middle, and right endpoints.

[0016] As a further improvement of the present invention, the locking structure is further provided with a positioning block, which is fixedly connected to the restraint column. One end of the restraint column penetrates and fixes the center of the edge of the gasket, and the center of the gasket is penetrated by a bolt.

[0017] As a further improvement of the present invention, the positioning block and the restraint column form a "T" shape and are each provided with a set at the upper and lower ends of the gasket and are set in a symmetrical orientation. The bolt at the center of the gasket is detachably connected to the bottom of the small object storage box in an insertion and locking manner.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. Based on the two groups of adjustment structures on the base of the present invention, the rotating rod parallelly restrains the two rotating pulleys through the rotating grooves of the two support blocks and the auxiliary block. Then, the teaching aid main board can be vertically erected on the base or horizontally covered on the upper layer of the base by manual adjustment using the rotating pulleys, so as to be able to change the orientation of the teaching aid main board. Furthermore, each different teaching aid on the teaching aid main board can select a suitable position for auxiliary teaching according to different teaching contents, so as to improve the use intensity effect of the higher mathematics teaching aid.

[0019] 2. After the teaching aid main board of the present invention is further improved, through the positioning of the grid line board, the drawing board, and the magnetic attraction board by the assembly board, the three can be used one by one according to the adjustment of the orientation of the adjustment structure. Then, the demonstration lines and the inserted nails equipped with the grid line board can be placed in the small object storage box when not in use to prevent loss. At the same time, the magnetic attraction board on the back can place various metal auxiliary teaching aids after the assembly board is parallel to the base. Subsequently, the drawing board can be used vertically together with the grid line board. Therefore, integrating different teaching aids on the assembly board can improve the convenience of using the teaching aid and avoid the need to select each teaching aid one by one when they are independent individuals, thus improving the convenience of using the mathematics teaching aid.

[0020] 3. After the parallel plate bottom layer at the lower end of the base of the present invention is further improved, the anti-slip blocks on the solid plate body can increase the friction with the ground and prevent the overall offset and instability during the adjustment of the teaching aid main board through the adjustment structure. Then, the central clamping frame can vertically fix the small object storage box in combination with the locking structure of the bottom plate, so as to effectively improve the firmness of the small object storage box in the base, ensure the storage and protection effect of the small object teaching aids to prevent loss, and improve the disassembly and assembly convenience between the small object storage box and the base. Description of the Drawings

[0021] Figure 1 It is a schematic structural diagram of a teaching aid for advanced mathematics.

[0022] Figure 2 It is a schematic three - dimensional structural diagram after the improvement of an adjustment structure.

[0023] Figure 3 It is a schematic three - dimensional structural diagram after the improvement of a rotating pulley.

[0024] Figure 4 It is a schematic three - dimensional structural diagram after the improvement of a main board of the teaching aid.

[0025] Figure 5 It is a schematic rear - view structural diagram after the improvement of a grid line board.

[0026] Figure 6 It is a schematic top - view structural diagram after the improvement of the bottom layer of a parallel plate.

[0027] Figure 7 It is a schematic sectional - view structural diagram after the improvement of a locking structure.

[0028] In the figure: main board of the teaching aid - 1, adjustment structure - 2, small object storage box - 3, base - 4, parallel plate - 5; Rotating pulley - 21, rotating rod - 22, rotating groove - 23, auxiliary block - 24, support block - 25; Contact ring - 211, wheel body - 212, connecting body - 213, thread groove - 214, external thread layer - 215; Grid line board - 11, drawing board - 12, assembly board - 13, magnetic attraction board - 14, slide rail - 15, locking groove - 16, locking bolt - 17; Interpenetrating layer - 111, rubber plate - 112, interpenetrating rod - 113, metal block - 114; Anti - slip block - 51, solid plate body - 52, clamping frame - 53, bottom plate - 54, locking structure - 55; Positioning block - 551, restraint column - 552, gasket - 553, bolt - 554. Specific implementation mode

[0029] The following further describes the present invention with reference to the accompanying drawings: Embodiment

[0030] Figures 1 to 5 As shown: The present invention provides a teaching aid for advanced mathematics, Its structure includes a teaching aid main board 1, an adjustment structure 2, a small object storage box 3, a base 4, and a parallel plate 5. The left and right sides of the teaching aid main board 1 are in inserted contact with the adjustment structure 2, and the small object storage box 3 is horizontally covered through the adjustment structure 2. The adjustment structure 2 and the small object storage box 3 are vertically installed on the surface layer of the base 4, and a parallel plate 5 is also connected to the lower end of the base 4, and the two are parallel to each other.

[0031] Among them, the adjustment structure 2 is provided with a rotating pulley 21. The center of the rotating pulley 21 is connected to a rotating rod 22, and the rotating rod 22 passes through the central part of the auxiliary block 24 through a rotating groove 23. A support block 25 is welded to the bottom of the auxiliary block 24 to complete the vertical inserted and fixed connection with the surface layer of the base 4.

[0032] Among them, the rotating pulley 21 is also provided with a contact ring 211. The contact ring 211 covers the edge part of the wheel body 212, and a connecting body 213 is connected to the center of the wheel body 212. A threaded groove 214 is opened at the center of the upper end of the connecting body 213, and an external thread layer 215 is arranged on the outer edge of the lower end of the connecting body 214 to complete the locking and fixed connection with one end of the rotating rod 22.

[0033] Among them, small magnetic teaching aids and other objects are stored in the small object storage box 3 on the base 4, and then the rotating rod 22 is positioned by the support blocks 25 and the auxiliary blocks 24 of the two adjustment structures 2, so that the rotating pulley 21 drives the rotating rod 22 to rotate smoothly to drive the teaching aid main board 1 to be adjusted vertically or horizontally. The wheel body 212 of the rotating pulley 21 contacts the teaching aid main board 1 through the contact ring 211, and then the connection with the rotating rod 22 is completed by using the external thread layer 215 of the central connecting body 213.

[0034] Among them, the area of the teaching aid main board 1 is smaller than that of the base 4, and manual adjustment in the vertical and horizontal directions is carried out through the two adjustment structures 2. The height of the small object storage box 3 is smaller than that of the adjustment structure 2, so that the teaching aid main board 1 can cover it, and the base 4 and the parallel plate 5 overlap each other.

[0035] Among them, the centers of the rotating pulley 21 and the rotating rod 22 coincide with each other, and the rotating rod 22 passes through the centers of the two auxiliary blocks 24 and is horizontally installed on the base 4 by the support blocks 25 to enable the rotating pulley 21 to rotate smoothly.

[0036] Among them, the contact ring 211 covers the outside of the wheel body 212 and is in inserted contact with both sides of the surface of the teaching aid main board 1. The connecting body 213 of the wheel body 212 is spliced with the wheel body 212 in a vertically penetrating connection manner. The threaded groove 214 is arranged at the center of the top of the connecting body 213, and the external thread layer 215 is arranged at the bottom edge of the connecting body 213.

[0037] Among them, the teaching tool main board 1 is provided with a grid line board 11. The grid line board 11 is embedded in the upper part of the drawing board 12 and the two are parallelly embedded in the central area of the surface of the assembly board 13. A magnetic attraction board 14 is also provided on the back of the assembly board 13. Slide rails 15 are opened on the left and right sides of the assembly board 13 to contact with the rotating pulleys 21. Locking grooves 16 are opened in the outer edge area of the slide rails 15 for the locking bolts 17 to penetrate through to complete the threaded fixed connection with the threaded grooves 214 of the connecting body 213 of the rotating pulley 21.

[0038] Among them, the grid line board 11 is located at the top of the drawing board 12 and the surface of the magnetic attraction board 14 on the back of the assembly board 13 is in a flattened state. The two slide rails 15 of the assembly board 13 are both opened in a straight line direction and are symmetrically distributed. Two groups of locking grooves 16 and locking bolts 17 are respectively provided at the outer edges of the two slide rails 15.

[0039] Among them, the grid line board 11 is further provided with an insertion layer 111. The insertion layer 111 covers the surface part of the rubber board 112 and a connecting rod 113 is connected to the center of the back of the rubber board 112 to fix the metal block 114.

[0040] Among them, a plurality of small circular holes are opened on the surface of the insertion layer 111 and communicate with the surface of the rubber board 112. The rubber board 112 and the connecting rod 113 are perpendicular to each other. The metal block 114 of the connecting rod 113 is in a solid state and can be adsorbed inside the magnetic attraction board 14 after being inserted into the assembly board 13 through the cooperation of the connecting rod 113.

[0041] The specific functions and operation procedures of this embodiment: In the present invention, the advanced mathematics teaching aid can be positioned at the teaching origin through the base 4 and the parallel plate 5. Then, some small teaching aids can be stored in the small item storage box 3 on the base 4, such as demonstration lines, insertion pins, small metal teaching aids, etc. Then, the teaching aid main board 1 can be adjusted in the vertical or parallel orientation through the adjustment structure 2. So that after integrating various teaching aids on the teaching aid main board 1, it can combine with the adjustment structure 2 to set its own use orientation, thereby effectively improving the multi-functionality and use convenience of the mathematics teaching aid. Through the two support blocks 25 of the adjustment structure 2, two auxiliary blocks 24 can be vertically installed on the upper end of the base 4. Then, the rotation groove 23 of the auxiliary block 24 allows the rotating rod 22 to pass through in a parallel orientation. Therefore, two rotating pulleys 21 can be parallely constrained at both ends of the rotating rod 22 to prevent tilting. Then, through the cooperation of the center connecting body 213 and the external thread layer 215 at the bottom of the wheel body 212 of the rotating pulley 21, the wheel body 212 can be stably threadedly connected to both ends of the rotating rod 22. Subsequently, the wheel body 212 will contact the inner sides of the left and right ends of the surface layer of the teaching aid main board 1 through the external contact ring 211. So that under the manual adjustment of the teacher, the teaching aid main board 1 can adjust its orientation on the base 4 through the contact ring 211 of the wheel body 212 to achieve the effect of vertical positioning or covering and positioning the upper layer of the base 4 for use. Subsequently, the threaded groove 214 at the top of the connecting body 213 can effectively lock the adjusted orientation of the teaching aid main board 1 to avoid automatic deviation during use and improve the use stability effect of the overall mathematics teaching aid. However, the assembly board 13 of the teaching aid main board 1 can contact the rotating pulley 21 through the slide rails 15 on the left and right sides, so that it can be vertically positioned or parallely positioned in combination with the restraint of the rotating pulley 21. The magnetic attraction board 14 is used parallely on the base 4 and the drawing board 12 and the grid line board 11 are vertically positioned on the base 4 for use. After the orientation is determined, the locking bolt 17 of the locking groove 16 can be locked into the threaded groove 214 of the connecting body 213 to complete the positioning and avoid position deviation or tilt caused by lack of locking fixation, which affects the use. Through the cooperation of the magnetic attraction board 14, the metal fittings of the small item storage box 3 can be taken out for placement to assist teaching. Then, the drawing board 12 can be drawn on the surface with conventional chalk. The rubber board 112 of the grid line board 11 can be inserted into the assembly board 13 through the insertion rod 113 and coincide and be adsorbed and fixed with the inner side of the magnetic attraction board 14. Then, the insertion pins and demonstration lines in the small item storage box 3 are taken out and embedded in the rubber board 112 through the insertion layer 111 to complete the fixation of the demonstration line. Therefore, the teaching aid main board 1 can be adjusted according to different contents to assist teaching, improving the teaching effect and understandability of advanced mathematics. Embodiment

[0042] Figures 6 to 7 as shown in The present invention provides an advanced mathematics teaching aid, Its structure includes that the parallel plate 5 is further provided with anti-slip blocks 51, the anti-slip blocks 51 are fixed at the edge positions of the surface layer of the solid plate body 52, and a clamping frame 53 is connected to the center of the solid plate body 52. The bottom plate 54 is positioned through the clamping frame 53, and a locking structure 55 is connected to the surface layer of the bottom plate 54 to fix the small object storage box 3.

[0043] Among them, two anti-slip blocks 51 are provided in total in the edge area of the surface layer of the solid plate body 52 and are set in a symmetrical orientation. The clamping frame 53 of the solid plate body 52 covers the edge of the bottom plate 54, and three groups of locking structures 55 are connected to the surface of the bottom plate 54 to fix the bottom of the small object storage box 3 at the left, middle, and right endpoints.

[0044] Among them, the locking structure 55 is further provided with a positioning block 551, the positioning block 551 is fixedly connected to the restraint column 552, one end of the restraint column 552 penetrates and fixes the center of the edge of the gasket 553, and the center of the gasket 553 is penetrated by a bolt 554.

[0045] Among them, the positioning block 551 and the restraint column 552 form a "T" shape and are provided with a set at each of the upper and lower parts of the gasket 553 and are set in a symmetrical orientation. The bolt 554 at the center of the gasket 553 is detachably connected to the bottom of the small object storage box 3 in an insertion and locking manner.

[0046] The specific functions and operation processes of this embodiment: In the present invention, the parallel plate 5 at the lower end of the base 4 can contact the ground according to the rubber anti-slip blocks 51 under the solid plate body 52, achieving the effect of increasing friction and avoiding the overall instability and offset of the teaching aid during the adjustment of the main teaching aid board 1. Then, the clamping frame 53 at the center of the solid plate 52 can position the bottom plate 54, so that the surface of the bottom plate 54 can coincide with the bottom layer of the small object storage box 3. Subsequently, it is fixed by the locking structures 55 at the left, middle, and right endpoints. Therefore, the detachable effect can improve the disassembly and assembly convenience of the small object storage box 3 and prevent the jitter and instability caused by the gap in the simple insertion positioning, which may generate noise and affect the teaching quality of the classroom. Then, the gasket 553 of the locking structure 55 can be stably installed in the inner wall area of the clamping frame 53 through two groups of restraint columns 552 and positioning blocks 551, ensuring that the gasket 553 can be used in the center position, ensuring that the bolt 554 can be locked in a vertical orientation, and improving the connection accuracy with the small object storage box 3.

[0047] Using the technical solution of the present invention, or those skilled in the art inspired by the technical solution of the present invention to design a similar technical solution and achieving the above technical effects shall fall within the protection scope of the present invention.

Claims

1. A teaching aid for advanced mathematics, the structure of which includes: Teaching aid main board (1), adjusting structure (2), small object storage box (3), base (4), parallel plate (5). The left and right sides of the teaching aid main board (1) are in inserted contact with the adjusting structure (2), and the small object storage box (3) is covered in parallel through the adjusting structure (2). The adjusting structure (2) and the small object storage box (3) are vertically installed on the surface of the base (4), and a parallel plate (5) is also connected to the lower end of the base (4), and the two are parallel to each other. It is characterized in that: The adjusting structure (2) is provided with a rotating pulley (21). The center of the rotating pulley (21) is connected to a rotating rod (22), and the rotating rod (22) passes through the center of the auxiliary block (24) through a rotating groove (23). A support block (25) is welded to the bottom of the auxiliary block (24) to complete the vertical inserted and fixed connection with the surface of the base (4); The rotating pulley (21) is also provided with a contact ring (211). The contact ring (211) covers the edge of the wheel body (212), and a connecting body (213) is connected to the center of the wheel body (212). A threaded groove (214) is opened at the center of the upper end of the connecting body (213), and an external thread layer (215) is arranged on the outer edge of the lower end of the connecting body (214) to complete the locking and fixed connection with one end of the rotating rod (22); The small object storage box (3) on the base (4) is used to store small magnetic teaching aids and other objects. Then, the rotating rod (22) is positioned by the support blocks (25) and auxiliary blocks (24) of the two groups of adjusting structures (2), so that the rotating pulley (21) drives the rotating rod (22) to rotate smoothly to drive the teaching aid main board (1) to be adjusted in the vertical or parallel direction. The wheel body (212) of the rotating pulley (21) contacts the teaching aid main board (1) through the contact ring (211), and then the external thread layer (215) of the central connecting body (213) is used to complete the connection with the rotating rod (22).

2. The advanced mathematics teaching aid according to claim 1, wherein: The area of the teaching aid main board (1) is smaller than that of the base (4), and manual adjustment in the vertical and parallel directions is carried out through two groups of adjusting structures (2). The height of the small object storage box (3) is smaller than that of the adjusting structure (2) to allow the teaching aid main board (1) to cover it, and the base (4) coincides with the parallel plate (5).

3. The advanced mathematics teaching aid according to claim 1, characterized in that: The centers of the rotating pulley (21) and the rotating rod (22) coincide with each other, and the rotating rod (22) passes through the centers of the two groups of auxiliary blocks (24) and is parallelly installed on the base (4) by the support blocks (25) to allow the rotating pulley (21) to rotate smoothly.

4. A teaching aid for advanced mathematics according to claim 1, characterized in that: The contact ring (211) covers the outside of the wheel body (212) and is in inserted contact with both sides of the surface of the teaching aid main board (1). The connecting body (213) of the wheel body (212) is spliced with the wheel body (212) in a vertically penetrating connection manner. The threaded groove (214) is arranged at the center of the top of the connecting body (213), and the external thread layer (215) is arranged at the bottom edge of the connecting body (213).

5. A teaching aid for advanced mathematics according to claim 1, characterized in that: The main board (1) of the teaching aid is provided with a grid board (11). The grid board (11) is embedded in the upper part of the drawing board (12), and the two are parallelly embedded in the central area of the surface of the assembly board (13). A magnetic suction board (14) is also arranged on the back of the assembly board (13). Slide rails (15) are opened on the left and right sides of the assembly board (13) to contact with the rotating pulleys (21). Locking grooves (16) are opened in the outer edge area of the slide rails (15) for the locking bolts (17) to penetrate through and complete the threaded fixed connection with the threaded grooves (214) of the connecting body (213) of the rotating pulleys (21). The grid board (11) is located at the top of the drawing board (12), and the surface of the magnetic suction board (14) on the back of the assembly board (13) is in a flattened form. The two slide rails (15) of the assembly board (13) are opened in a straight line direction and are symmetrically distributed. Two groups of locking grooves (16) and locking bolts (17) are respectively arranged on the outer edges of the two slide rails (15).

6. The advanced mathematics teaching aid according to claim 5, characterized in that: The grid board (11) is further provided with an insertion layer (111). The insertion layer (111) covers the surface layer of the rubber board (112), and a insertion rod (113) is connected to the center of the back of the rubber board (112) to fix the metal block (114). A plurality of small circular holes are opened on the surface of the insertion layer (111) and communicate with the surface of the rubber board (112). The rubber board (112) is perpendicular to the insertion rod (113). The metal block (114) of the insertion rod (113) is in a solid form and can be adsorbed inside the magnetic suction board (14) after being inserted into the interior of the assembly board (13) through the cooperation of the insertion rod (113).

7. The advanced mathematics teaching aid according to claim 1, characterized in that: The parallel board (5) is further provided with anti-slip blocks (51). The anti-slip blocks (51) are fixed at the edge positions of the surface layer of the solid board body (52), and a clamping frame (53) is connected to the center of the solid board body (52). The bottom board (54) is positioned through the clamping frame (53), and a locking structure (55) is connected to the surface layer of the bottom board (54) to fix the small object storage box (3). Two anti-slip blocks (51) are provided in total in the edge area of the surface layer of the solid board body (52) and are set in a symmetrical orientation. The clamping frame (53) of the solid board body (52) covers the edge of the bottom board (54). Three groups of locking structures (55) are connected to the surface of the bottom board (54) to fix the bottom of the small object storage box (3) at the left, middle, and right endpoints.

8. A teaching aid for advanced mathematics according to claim 7, characterized in that: The locking structure (55) is further provided with a positioning block (551). The positioning block (551) is fixedly connected to the restraint column (552). One end of the restraint column (552) penetrates and fixes the center of the edge of the gasket (553), and the center of the gasket (553) is penetrated by a bolt (554). The positioning block (551) and the restraint column (552) form a "T" shape, and one group is provided at each of the upper and lower parts of the gasket (553) and is set in a symmetrical orientation. The bolt (554) at the center of the gasket (553) completes the detachable connection with the bottom of the small object storage box (3) in an insertion and locking manner.

Images