Movable whiteboard for advanced mathematics teaching

Abstract

The invention belongs to the technical field of teaching boards, and discloses a movable whiteboard for advanced mathematics teaching, which comprises a base, an erasing device is arranged at the top of the base, a stretching structure is arranged above the base and on one side of the erasing device, and a lifting structure is arranged at the bottom of the base. Through the multifunctional integrated design, the functions of writing, erasing, area expansion and height adjustment are integrated in one device, the number of teaching devices is reduced, the classroom space is saved, a teacher can flexibly use the device according to different teaching contents and requirements in the teaching process, the teaching efficiency and convenience are improved, the erasing operation is simple and convenient, and the teaching efficiency is improved. A teacher can easily control the erasing board to move on the teaching board by pulling the handle, writing content is rapidly erased, teaching time is saved, the stability and accuracy of movement of the erasing board are guaranteed through the precise mechanical structure design, and actual application and operation are facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of teaching boards, in particular to a mobile whiteboard for advanced mathematics teaching. Background Art

[0002] A product of the rise of new materials, written with a water-based pen. Whiteboards are made of alloy, enamel, PET polymer, etc. Whiteboards are also divided into single-sided whiteboards and double-sided whiteboards, and are used in two ways: wall-mounted and mobile with a rack. Whiteboards are usually used in conference rooms and multimedia teaching rooms, and are business-style teaching boards.

[0003] In the actual application of existing equipment, teaching whiteboards are usually fixed on the walls of classrooms and cannot be moved according to the needs of teaching scenarios. This will bring great inconvenience in some situations where flexible adjustment of teaching space is required. Its installation height is fixed and cannot meet the writing needs of teachers of different heights. For taller or shorter teachers, the inappropriate height of the whiteboard may cause uncomfortable writing postures, and long-term teaching may easily cause fatigue. At the same time, the writing area of ​​the whiteboard is usually fixed. When explaining complex advanced mathematics content, such as large function graphs, complex geometric figures, and lengthy formula derivations, there may be insufficient writing area, which affects the teaching effect and is not conducive to practical application and operation. Summary of the invention

[0004] One of the purposes of the present invention is to provide a mobile whiteboard for advanced mathematics teaching.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: a mobile whiteboard for advanced mathematics teaching, comprising a base: an erasing device is provided on the top of the base, an extension structure is provided above the base and on one side of the erasing device, and a lifting structure is provided at the bottom of the base;

[0006] The erasing device comprises a T-slot, a T-block, a third slide slot, a fixed plate, a tension rope, a first connecting plate, a spring, a first moving plate, a through slot, a fourth slide slot, a moving block, a connecting block, a wiper plate, a second slider, a second connecting plate and a handle; the lifting structure comprises a support seat, a first slide slot, a slide bar, a first slider, a first connecting rod, a second slide slot, a first bidirectional screw and a first threaded block; the extending structure comprises a receiving plate, a fifth slide slot, a sixth slide slot, an extension plate, a fixed block, a second bidirectional screw, a second threaded block, a second connecting rod and a linkage block;

[0007] The top of the base is fixedly connected to a frame, the top of the base and the inner wall of the frame are fixedly connected to a teaching board, both sides of the inner wall of the frame are provided with T-slots, the inside of the T-slots are slidably connected with T-blocks, a first movable plate is fixedly connected between the two T-blocks, the outer side of the movable plate is provided with a through slot, the inside of the through slot is slidably connected with a movable block, both ends of the movable block extend to the outside of the movable plate, an end of the movable block close to the teaching board is fixedly connected to a connecting block, a side of the connecting block close to the teaching board is fixedly connected to a wiping board, an end of the movable block away from the wiping board is fixedly connected to a second connecting plate, and a side of the second connecting plate away from the movable block is fixedly connected to a handle.

[0008] Preferably, a storage plate is fixedly connected to one side of the frame and located on one side of the teaching plate, a fifth slide groove is opened on both sides of the storage plate, an extension plate is slidably connected inside the fifth slide groove, a sixth slide groove is opened on the outer side of the storage plate and located on one side of the fifth slide groove, a connecting block is slidably connected inside the sixth slide groove, and the connecting blocks are fixedly connected to the corresponding extension plates.

[0009] Preferably, the storage plate is fixedly connected to two fixed blocks on one side away from the teaching plate, a second bidirectional screw is rotatably connected between the two fixed blocks, the outer side of the second bidirectional screw is threadedly connected to two second threaded blocks, and second connecting rods are rotatably connected between both sides of the second threaded block and the corresponding linkage blocks.

[0010] Preferably, a second slide groove is provided on the top of the support seat, and a first bidirectional screw is rotatably connected inside the second slide groove, and two first threaded blocks are threadedly connected to the outer sides of the first bidirectional screw, and the tops of the first threaded blocks are rotatably connected to first connecting rods, and the two first connecting rods are cross-connected to each other, and a first slide groove is provided on the bottom of the base, and a sliding rod is fixedly connected inside the first slide groove, and two first sliding blocks are slidably connected to the outer sides of the sliding rod, and the first sliding blocks are rotatably connected to the corresponding first connecting rods.

[0011] Preferably, a third slide groove is provided inside the frame and above the T-slot, two fixed plates are fixedly connected inside the third slide groove, and tension ropes are slidably connected to the outer sides of the fixed plates. One end of the tension ropes passes through the fixed plates and is fixedly connected to the T-block, and the sides where the two tension ropes are close to each other are fixedly connected to the first connecting plates, and a spring is fixedly connected between the two first connecting plates.

[0012] Preferably, fourth slide grooves are provided on one side of the first movable plate and on both sides of the through groove, two second sliding blocks are fixedly connected to one side of the second connecting plate, the second sliding blocks are slidably connected to the fourth slide grooves, the four corners of the bottom of the support seat are fixedly connected to support blocks, the bottoms of the support blocks are installed with self-locking wheels, a servo motor is fixedly connected to the top of one of the fixed blocks, and the output shaft of the servo motor is fixedly connected to the second bidirectional screw.

[0013] Preferably, the inner wall of the second slide groove is rotatably connected to the second bevel gear, the outer side of the first bidirectional screw is fixedly connected to the first bevel gear, the first bevel gear is meshingly connected with the second bevel gear, the outer side of the support seat is rotatably connected to the turntable, and the output shaft of the turntable is fixedly connected to the second bevel gear.

[0014] Preferably, the bottom of the base and both ends of the first slide groove are fixedly connected with a slide cylinder, the interior of the slide cylinder is slidably connected with a second movable plate, the bottom of the second movable plate is fixedly connected with an extension rod, and the bottom of the extension rod passes through the slide cylinder and is fixedly connected to the support seat.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) The present invention integrates the functions of writing, erasing, area expansion and height adjustment into one device through a multifunctional integrated design, thereby reducing the number of teaching devices, saving classroom space, and facilitating teachers to flexibly use the eraser according to different teaching contents and needs during the teaching process, thereby improving teaching efficiency and convenience. The erasing operation is simple and easy, and teachers can easily control the movement of the eraser on the teaching board by pulling the handle to quickly erase the written content, saving teaching time. The precise mechanical structure design ensures the stability and accuracy of the movement of the eraser, avoiding the situation where incomplete erasure or damage to the teaching board may occur during the erasing process. The auxiliary design of the spring and the tension rope reduces the loss caused by mechanical friction and prolongs the service life of the erasing device. At the same time, the spring can enable the first movable plate to be retracted.

[0017] (2) The present invention enables teachers to adjust the height of the whiteboard according to their own height and teaching posture through the adjustable height function, so as to find the most comfortable writing and teaching position and reduce the fatigue caused by long-term teaching. The design of the self-locking wheels facilitates the movement and positioning of the device in the classroom. Teachers can easily move the whiteboard to a suitable position according to teaching needs, and it can remain stable after being fixed and will not move at will. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2It is a schematic diagram of the cross-sectional structure of the present invention.

[0020] Figure 3 It is a rear structural schematic diagram of the present invention.

[0021] Figure 4 It is a side structural schematic diagram of the present invention.

[0022] Figure 5 It is a cross-sectional structural schematic diagram of the present invention when viewed from above.

[0023] In the figure: 1, base; 2, first slide; 3, slide bar; 4, first slider; 5, first connecting rod; 6, support seat; 7, second slide; 8, first bidirectional screw; 9, first threaded block; 10, frame; 11, T-slot; 12, T-block; 13, third slide; 14, fixed plate; 15, tension rope; 16, first connecting plate; 17, spring; 18, first moving plate; 19, through slot; 20, fourth slide; 21, moving block; 22, connecting block; 23, wiper plate; 24 , the second slider; 25, the second connecting plate; 26, the handle; 27, the first bevel gear; 28, the second bevel gear; 29, the turntable; 30, the support block; 31, the self-locking wheel; 32, the storage plate; 33, the fifth slide; 34, the sixth slide; 35, the extension plate; 36, the fixed block; 37, the second bidirectional screw; 38, the second threaded block; 39, the second connecting rod; 40, the linkage block; 41, the slide; 42, the second movable plate; 43, the extension rod; 44, the servo motor; 45, the teaching board. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0025] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present invention.

[0026] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0027] One of the preferred embodiments of the present invention is as follows Figures 1 to 5 As shown, a mobile whiteboard for advanced mathematics teaching includes a base 1: an erasing device is provided on the top of the base 1, a stretching structure is provided above the base 1 and on one side of the erasing device, and a lifting structure is provided at the bottom of the base 1;

[0028] The erasing device includes a T-slot 11, a T-block 12, a third slide slot 13, a fixed plate 14, a tension rope 15, a first connecting plate 16, a spring 17, a first movable plate 18, a through slot 19, a fourth slide slot 20, a movable block 21, a connecting block 22, an wiping plate 23, a second slider 24, a second connecting plate 25 and a handle 26; the lifting structure includes a support seat 6, a first slide slot 2, a slide bar 3, a first slider 4, a first connecting rod 5, a second slide slot 7, a first bidirectional screw 8 and a first threaded block 9; the stretching structure includes a receiving plate 32, a fifth slide slot 33, a sixth slide slot 34, an extension plate 35, a fixed block 36, a second bidirectional screw 37, a second threaded block 38, a second connecting rod 39 and a linkage block 40;

[0029] A frame 10 is fixedly connected to the top of the base 1, and a teaching board 45 is fixedly connected to the top of the base 1 and the inner wall of the frame 10. T-slots 11 are provided on both sides of the inner wall of the frame 10, and T-blocks 12 are slidably connected inside the T-slots 11. A first movable plate 18 is fixedly connected between the two T-blocks 12. A through slot 19 is provided on the outer side of the movable plate 18, and a movable block 21 is slidably connected inside the through slot 19. Both ends of the movable block 21 extend to the outer side of the movable plate 18, and an end of the movable block 21 close to the teaching board 45 is fixedly connected to a connecting block 22, and a side of the connecting block 22 close to the teaching board 45 is fixedly connected to an wiping board 23, and an end of the movable block 21 away from the wiping board 23 is fixedly connected to a second connecting plate 25, and a side of the second connecting plate 25 away from the movable block 21 is fixedly connected to a handle 26.

[0030] A storage plate 32 is fixedly connected to one side of the frame 10 and located on one side of the teaching plate 45, and a fifth sliding groove 33 is opened on both sides of the storage plate 32. The interior of the fifth sliding groove 33 is slidably connected with an extension plate 35. A sixth sliding groove 34 is opened on the outer side of the storage plate 32 and located on one side of the fifth sliding groove 33. The interior of the sixth sliding groove 34 is slidably connected with a connecting block 40, and the connecting block 40 is fixedly connected to the corresponding extension plate 35.

[0031] Two fixed blocks 36 are fixedly connected to one side of the storage plate 32 away from the teaching plate 45, a second bidirectional screw 37 is rotatably connected between the two fixed blocks 36, the outer side of the second bidirectional screw 37 is threadedly connected to two second threaded blocks 38, and second connecting rods 39 are rotatably connected between both sides of the second threaded block 38 and the corresponding linkage blocks 40.

[0032] A second slide groove 7 is provided at the top of the support seat 6, and a first bidirectional screw 8 is rotatably connected inside the second slide groove 7. Two first threaded blocks 9 are threadedly connected to the outer sides of the first bidirectional screw 8. The tops of the first threaded blocks 9 are rotatably connected to first connecting rods 5, and the two first connecting rods 5 are cross-connected to each other. A first slide groove 2 is provided at the bottom of the base 1, and a sliding rod 3 is fixedly connected inside the first slide groove 2. Two first sliding blocks 4 are slidably connected to the outer sides of the sliding rod 3, and the first sliding blocks 4 are rotatably connected to the corresponding first connecting rods 5.

[0033] A third slide groove 13 is provided inside the frame 10 and above the T-slot 11. Two fixed plates 14 are fixedly connected inside the third slide groove 13. Tension ropes 15 are slidably connected to the outer sides of the fixed plates 14. One end of the tension ropes 15 passes through the fixed plates 14 and is fixedly connected to the T-block 12. A first connecting plate 16 is fixedly connected to the side where the two tension ropes 15 are close to each other, and a spring 17 is fixedly connected between the two first connecting plates 16.

[0034] A fourth slide groove 20 is provided on one side of the first movable plate 18 and on both sides of the through groove 19, two second sliders 24 are fixedly connected to one side of the second connecting plate 25, and the second sliders 24 are slidably connected to the fourth slide groove 20, and support blocks 30 are fixedly connected to the four corners of the bottom of the support seat 6, and self-locking wheels 31 are installed and connected to the bottom of the support blocks 30, and a servo motor 44 is fixedly connected to the top of one of the fixed blocks 36, and the output shaft of the servo motor 44 is fixedly connected to the second bidirectional screw 37.

[0035] The inner wall of the second slide groove 7 is rotatably connected to the second bevel gear 28, the outer side of the first bidirectional screw 8 is fixedly connected to the first bevel gear 27, the first bevel gear 27 is meshingly connected to the second bevel gear 28, the outer side of the support seat 6 is rotatably connected to the turntable 29, and the output shaft of the turntable 29 is fixedly connected to the second bevel gear 28.

[0036] The bottom of the base 1 and both ends of the first slide groove 2 are fixedly connected with a slide cylinder 41, the interior of the slide cylinder 41 is slidably connected with a second movable plate 42, the bottom of the second movable plate 42 is fixedly connected with an extension rod 43, and the bottom of the extension rod 43 passes through the slide cylinder 41 and is fixedly connected to the support seat 6.

[0037] Working principle:

[0038] When in use, the base 1 serves as the basic support of the entire device, carrying all the components above. A frame 10 is installed on the top of the base 1, and a teaching board 45 is fixed in the frame 10 for writing. The erasing device, the extension structure and the lifting structure respectively realize their respective functions at different positions. The erasing device is used to erase the written content on the teaching board, the extension structure can expand the writing area as needed, and the lifting structure can adjust the overall height of the whiteboard. The T-slots 11 on both sides of the inner wall of the frame 10 cooperate with the T-blocks 12, and the T-blocks 12 can slide smoothly in the vertical direction in the T-slots 11, thereby ensuring the stability and accuracy of the first movable plate 18 when it moves vertically in the frame 10. The first movable plate 18 is fixed to the frame 10 through the T-blocks 12, and the moving block 21 in the through slot 19 is connected to the eraser 23 through the connecting block 22. When the handle 26 is pulled, the second connecting plate 25 drives the moving block 21 to slide in the through slot 19, thereby moving the eraser 23 on the surface of the teaching board 45 to achieve the erasing function. One end of the tension rope 15 is connected to the T-block 12, and the other end passes through the fixed plate 14 and is connected to the first connecting plate 16. The spring 17 is connected between the two first connecting plates 16. When the first moving plate 18 moves, the tension rope 15 and the spring 17 work together to ensure that the first moving plate 18 moves smoothly and avoids jamming when the eraser 23 moves. At the same time, when not in use, the spring 17 can retract the first moving plate 18;

[0039] The servo motor 44 drives the second bidirectional screw 37 between the fixed blocks 36 to rotate. The two second threaded blocks 38 on the second bidirectional screw 37 move in opposite directions when the screw rotates. Through the connection between the second connecting rod 39 and the linkage block 40, the linkage block 40 is pushed to drive the extension plate 35 to slide in the fifth slide groove 33 to achieve extension or contraction. The self-locking wheel 31 at the bottom of the support seat 6 facilitates the movement of the entire device. A first bidirectional screw 8 is arranged in the second slide groove 7 at the top of the support seat 6. When the first bidirectional screw 8 rotates, the two first threaded blocks 9 on it move in opposite directions. The first threaded block 9 is connected to the base 1 through the first connecting rod 5. The turntable 29 is rotated, and the power is transmitted to the first bidirectional screw 8 through the meshing of the second bevel gear 28 and the first bevel gear 27 on the first bidirectional screw 8, driving it to rotate. There is a slide bar 3 in the first slide groove 2 at the bottom of the base 1, and the two first sliders 4 on the slide bar 3 are rotatably connected with the first connecting rod 5. When the first threaded block 9 moves, the first connecting rod 5 and the first slider 4 cooperate to make the base 1 move relative to the support seat 6, and the fourth slide groove 20 on one side of the first moving plate 18 cooperates with the second slider 24 on the second connecting plate 25. When the second connecting plate 25 drives the wiping plate 23 to move, the second slider 24 slides in the fourth slide groove 20 to ensure that the wiping plate 23 moves smoothly along the predetermined track, and prevents the wiping plate 23 from shaking or deflecting during the movement;

[0040] The slide 41 is installed at the bottom of the base 1 and is located at both ends of the first slide 2. The second movable plate 42 in the slide 41 can slide up and down. The bottom of the extension rod 43 is fixedly connected to the support seat 6, and the top is fixedly connected to the second movable plate 42. During the lifting process of the base 1, the slide 41, the second movable plate 42 and the extension rod 43 play a guiding and stable supporting role to prevent the base 1 from tilting or shaking during lifting. In the lifting structure, the second bevel gear 28 connected to the inner wall of the second slide 7 is engaged with the first bevel gear 27 fixed on the outside of the first bidirectional screw 8. When the turntable 29 is rotated, the power of the turntable 29 is transmitted to the first bidirectional screw 8 through the second bevel gear 28 and the first bevel gear 27, driving the first bidirectional screw 8 to rotate, thereby realizing the lifting operation. The various components of the entire mobile whiteboard are closely connected through a reasonable mechanical structure design. The erasing device, the stretching structure and the lifting structure are independent of each other but do not interfere with each other in the process of realizing their respective functions. Through the connection of the base 1, the frame 10 and other components, a complete teaching device is formed.

[0041] The above describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention to be protected. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A mobile whiteboard for advanced mathematics teaching, characterized in that: It comprises a base (1): an erasing device is provided on the top of the base (1), an extension structure is provided above the base (1) and on one side of the erasing device, and a lifting structure is provided on the bottom of the base (1); The erasing device comprises a T-slot (11), a T-block (12), a third slide groove (13), a fixed plate (14), a pulling rope (15), a first connecting plate (16), a spring (17), a first movable plate (18), a through slot (19), a fourth slide groove (20), a movable block (21), a connecting block (22), an wiping plate (23), a second slider (24), a second connecting plate (25) and a handle (26); the lifting structure comprises a supporting seat (6), a first slide groove (2), a sliding rod (3), a first slider (4), a first connecting rod (5), a second slide groove (7), a first bidirectional screw (8) and a first threaded block (9); the extending structure comprises a receiving plate (32), a fifth slide groove (33), a sixth slide groove (34), an extending plate (35), a fixed block (36), a second bidirectional screw (37), a second threaded block (38), a second connecting rod (39) and a linkage block (40); The top of the base (1) is fixedly connected to a frame (10); the top of the base (1) and the inner wall of the frame (10) are fixedly connected to a teaching board (45); both sides of the inner wall of the frame (10) are provided with T-shaped slots (11); the insides of the T-shaped slots (11) are slidably connected to T-shaped blocks (12); a first movable plate (18) is fixedly connected between the two T-shaped blocks (12); the outer side of the movable plate (18) is provided with a through slot (19); the inside of the through slot (19) is slidably connected to A moving block (21) is provided, both ends of the moving block (21) extend to the outside of the moving plate (18), one end of the moving block (21) close to the teaching plate (45) is fixedly connected to a connecting block (22), one side of the connecting block (22) close to the teaching plate (45) is fixedly connected to an wiping plate (23), one end of the moving block (21) away from the wiping plate (23) is fixedly connected to a second connecting plate (25), and one side of the second connecting plate (25) away from the moving block (21) is fixedly connected to a handle (26).

2. A mobile whiteboard for advanced mathematics teaching as claimed in claim 1, characterized in that: A storage plate (32) is fixedly connected to one side of the frame (10) and located on one side of the teaching plate (45), and a fifth slide groove (33) is provided on both sides of the storage plate (32), and an extension plate (35) is slidably connected inside the fifth slide groove (33), and a sixth slide groove (34) is provided on the outer side of the storage plate (32) and located on one side of the fifth slide groove (33), and a linking block (40) is slidably connected inside the sixth slide groove (34), and the linking block (40) is fixedly connected to the corresponding extension plate (35).

3. A mobile whiteboard for advanced mathematics teaching as claimed in claim 1, characterized in that: Two fixed blocks (36) are fixedly connected to one side of the storage plate (32) away from the teaching plate (45); a second bidirectional screw (37) is rotatably connected between the two fixed blocks (36); the outer side of the second bidirectional screw (37) is threadedly connected to two second threaded blocks (38); and second connecting rods (39) are rotatably connected between the two sides of the second threaded block (38) and the corresponding linkage blocks (40).

4. A mobile whiteboard for advanced mathematics teaching as claimed in claim 1, characterized in that: The support seat (6) is provided with a second slide groove (7) at the top, and a first bidirectional screw rod (8) is rotatably connected inside the second slide groove (7), and two first threaded blocks (9) are threadedly connected to the outer side of the first bidirectional screw rod (8), and the tops of the first threaded blocks (9) are rotatably connected to first connecting rods (5), and the two first connecting rods (5) are cross-connected with each other. The base (1) is provided with a first slide groove (2) at the bottom, and a sliding rod (3) is fixedly connected inside the first slide groove (2), and two first sliding blocks (4) are slidably connected to the outer side of the sliding rod (3), and the first sliding blocks (4) are rotatably connected to the corresponding first connecting rods (5).

5. A mobile whiteboard for advanced mathematics teaching as claimed in claim 1, characterized in that: A third slide groove (13) is provided inside the frame (10) and above the T-shaped groove (11); two fixed plates (14) are fixedly connected inside the third slide groove (13); the outer sides of the fixed plates (14) are slidably connected with tension ropes (15); one end of the tension ropes (15) passes through the fixed plates (14) and is fixedly connected to the T-shaped block (12); the adjacent sides of the two tension ropes (15) are fixedly connected with a first connecting plate (16); a spring (17) is fixedly connected between the two first connecting plates (16).

6. A mobile whiteboard for advanced mathematics teaching as claimed in claim 1, characterized in that: A fourth slide groove (20) is provided on one side of the first movable plate (18) and on both sides of the through groove (19); two second sliders (24) are fixedly connected to one side of the second connecting plate (25); the second sliders (24) are slidably connected to the fourth slide groove (20); four corners of the bottom of the support seat (6) are fixedly connected to support blocks (30); the bottom of the support blocks (30) are installed with self-locking wheels (31); a servo motor (44) is fixedly connected to the top of one of the fixed blocks (36); the output shaft of the servo motor (44) is fixedly connected to the second bidirectional screw (37).

7. A mobile whiteboard for advanced mathematics teaching as claimed in claim 1, characterized in that: The inner wall of the second sliding groove (7) is rotatably connected to a second bevel gear (28); the outer side of the first bidirectional screw (8) is fixedly connected to a first bevel gear (27); the first bevel gear (27) is meshingly connected to the second bevel gear (28); the outer side of the support seat (6) is rotatably connected to a rotating disk (29); the output shaft of the rotating disk (29) is fixedly connected to the second bevel gear (28).

8. A mobile whiteboard for advanced mathematics teaching as claimed in claim 1, characterized in that: The bottom of the base (1) and both ends of the first slide groove (2) are fixedly connected with a slide cylinder (41), the interior of the slide cylinder (41) is slidably connected with a second movable plate (42), the bottom of the second movable plate (42) is fixedly connected with an extension rod (43), and the bottom of the extension rod (43) passes through the slide cylinder (41) and is fixedly connected to the support seat (6).

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