Multifunctional multimedia combined table and chair

Abstract

The invention discloses a multifunctional multimedia combined table and chair which comprises a bottom plate, a table, two sliding grooves, a movable frame and a seat, the table is fixedly installed at the upper end of the bottom plate, the two sliding grooves are both located in the upper end of the bottom plate, the two ends of the movable frame are movably embedded in the two sliding grooves respectively, and the seat is arranged on the movable frame. The seat is fixedly installed at the upper end of the movable frame, a turnover projection structure is arranged on one side of the table, and a lifting display structure is arranged at the center of the rear end of the table. The invention relates to the technical field of multimedia teaching, and the scheme is matched with an arranged cable winding assembly and a turnover projector to wind and release a cable, so that the cable of the projector can be always kept in a straight state, and the phenomena of cable exposure and cable accumulation when the projector is used are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of multimedia teaching, in particular to a multifunctional multimedia combined table and chair. Background Art

[0002] In the field of teaching, audio-visual teaching is gradually becoming the mainstream, and the use of multimedia audio-visual classrooms is also quite common. Special multimedia classrooms are built in various schools and teaching institutions. Multimedia teaching makes school teaching very convenient and practical, and has become an indispensable teaching equipment for modern teaching.

[0003] However, the multimedia teaching combination tables and chairs currently used in multimedia classrooms mostly adopt a fixed installation method to install all-in-one machines, projectors and other equipment. During teaching operations, the positions of the all-in-one machines and projectors cannot be adjusted according to different teaching needs, which has certain disadvantages in use. Moreover, when the current teaching projectors are in use, the cables connected to them usually cannot be stably stored, resulting in the cables being exposed to the outside or piled up in the box, affecting the overall use of the cables and even causing damage to the cables, posing certain teaching safety hazards. In view of this, there may be technical means to solve the above problems in the prior art, but this case intends to provide an alternative or replacement technical solution. Summary of the invention

[0004] The purpose of the present invention is to solve the above-mentioned problem and to design a multifunctional multimedia combination table and chair, which solves the problem that the multimedia teaching combination tables and chairs used in the existing multimedia audio-visual classrooms mostly adopt a fixed installation method to install the all-in-one machine, projector and other equipment. During the teaching operation, the position angle of the all-in-one machine and the projector cannot be adjusted according to different teaching needs, which has certain disadvantages in use. When the current teaching projector is in use, the cable connected to it usually cannot be stably stored, resulting in the cable being exposed to the outside or piled up in the box, affecting the overall use effect of the cable, and even causing damage to the cable, and there are certain teaching safety hazards.

[0005] The technical solution of the present invention to achieve the above-mentioned purpose is: a multifunctional multimedia combination table and chair, including a bottom plate, a table, two slide grooves, a mobile frame and a seat, the table is fixedly installed on the upper end of the bottom plate, the two slide grooves are both located at the upper end of the bottom plate, the two ends of the mobile frame are respectively movably embedded in the two slide grooves, the seat is fixedly installed on the upper end of the mobile frame, a flip projection structure is provided on one side of the table, and a lifting display structure is provided at the center of the rear end of the table;

[0006] The flip projection structure includes: a power supply box, a shaft, a flip plate, a limit plate, a fixing assembly, a mounting frame, a projector, a first bearing plate, a transmission shaft, a first gear, a second gear, a first bevel gear and a cable winding assembly;

[0007] The power supply box is fixedly installed on one side of the table, and two ends of the shaft are movably embedded in the walls on both sides of the power supply box. One end of the flip plate is fixedly connected to the shaft, and the limit plate is fixedly installed on the other side of the power supply box. The fixing component is installed on the upper end of the flip plate, and the mounting frame is movably embedded in the fixing component. The projector is fixedly installed on one side of the mounting frame, the first bearing plate is fixedly installed on one side of the lower end of the power supply box, and the transmission shaft is movably embedded in the first bearing plate. The first gear is fixedly installed on the upper end of the shaft, and the second gear is fixedly installed on the upper end of the transmission shaft and meshes with the first gear. The first bevel gear is fixedly installed on the other side of the transmission shaft, and the cable winding component is fixedly installed on one side of the upper wall of the power supply box and meshes with the first bevel gear.

[0008] Preferably, the cable reel assembly comprises: two second bearing plates, a screw rod, a second bevel gear, a guide rod, a moving block, a mounting shaft, a reel shaft, a third gear and a rack;

[0009] The two second bearing plates are respectively installed on both sides of the upper wall of the power supply box body, the two ends of the screw rod are respectively movably embedded in the two second bearing plates, the second bevel gear is fixedly installed on the upper end of the screw rod and meshes with the first bevel gear, the guide rod is fixedly installed on the upper wall of the power supply box body, the moving block is movably mounted on the upper end of the screw rod and movably mounted on the upper end of the guide rod, one end of the mounting shaft is movably mounted on one side of the moving block through a bearing, the winding shaft is fixedly installed on one side of the mounting shaft, the third gear is fixedly installed on the upper end of the mounting shaft, and the rack is fixedly installed on the upper wall of the power supply box body.

[0010] Preferably, the fixing assembly comprises: a fixing frame, two fixing bolts and two wrapping frames;

[0011] The fixing frame is fixedly mounted on the upper end of the flip plate, the two fixing bolts are respectively embedded in the mounting frame and the fixing frame, and the two wrapping frames are both located on the other side of the flip plate.

[0012] Preferably, the lifting display structure comprises: a lifting box, two linear modules, an operating box, a support shaft, an integrated machine and a damping fixing assembly;

[0013] The lifting box is fixedly installed at the rear end of the table, the two linear modules are respectively installed on the two side walls of the lifting box, and the driving ends are respectively movably passed through the two side walls of the lifting box, the two ends of the operating box are respectively connected to the two linear module driving ends, the bottom end of the support shaft is movably embedded in the center of the operating box, the all-in-one machine is fixedly installed on the upper end of the support shaft, the damping fixing assembly is installed in the operating box, and is connected to the support shaft.

[0014] Preferably, the damping fixing assembly comprises: a fourth gear, two operating shafts, two fifth gears, two mounting sleeves, two springs, two propulsion rods and two friction plates;

[0015] The fourth gear is fixedly installed on the upper end of the support shaft, the two operating shafts are movably installed on both sides of the operating box, the two fifth gears are respectively installed on the upper ends of the two operating shafts, and are respectively meshed with the two sides of the fourth gear, the two mounting sleeves are respectively installed on the inner walls of the two sides of the operating box, the two springs are respectively movably embedded in the two mounting sleeves, the two push rods are respectively movably embedded in the two mounting sleeves, and one end is respectively in contact with the two springs, and the two friction plates are respectively installed on one end of the two push rods, and are respectively fitted with one side of the two operating shafts.

[0016] Preferably, a positioning structure is provided at the upper end of the power supply box, and the positioning structure comprises: four positioning holes, a positioning sleeve, a positioning rod and a positioning frame;

[0017] The four positioning holes are evenly opened at the upper end of the first gear, the positioning sleeve is fixedly installed on one side of the upper end of the power supply box, one end of the positioning rod is movably embedded in the positioning sleeve, and the other end is movably embedded in one of the positioning holes, and the positioning frame is fixedly installed on the upper end of the power supply box, and movably sleeved on the upper end of the positioning rod.

[0018] Preferably, sound playing units are installed on both sides of the operation box.

[0019] Preferably, a cable connector is movably mounted on one end of the reel.

[0020] A method for using a multifunctional multimedia combination table and chair comprises the following steps:

[0021] Step S1: Equipment installation, move the table to the designated position, support the device through the bottom plate, then connect the device to the power supply, and lift and fix the projector and the all-in-one machine at the designated angle by working the flip projection structure and the lifting display structure, then pull the seat on the upper end of the mobile frame to move the mobile frame in the two slide slots, move the seat to the designated position, and conduct multimedia teaching by sitting on the upper end of the seat and cooperating with the flip projection structure and the lifting display structure;

[0022] Step S2: flipping the projector. When flipping the projector, first pull one end of the flip plate to make the flip plate and the shaft body rotate on one side of the upper end of the power supply box. During the rotation of the shaft body, the first gear located in the upper end of the shaft body rotates with the shaft body. Under the meshing action of the first gear and the second gear, the transmission shaft and the first bevel gear rotate in the first bearing plate, and drive the cable winding assembly to move on the upper wall of the power supply box to provide mobile power to the projector. The mounting frame and the projector can be removed by the fixing assembly to facilitate the replacement of the projector.

[0023] Step S3: Cable winding and releasing, the first bevel gear is meshed with the second bevel gear at the upper end of the lead screw, driving the lead screw to rotate in the two second bearing plates, changing the position of the moving block at the upper end of the lead screw and the guide rod, when the moving block moves, the third gear located at the upper end of the mounting shaft rolls on the upper end of the rack, so that the mounting shaft and the winding shaft rotate on one side of the moving block, and the cable is released to ensure the power supply effect of the projector during the flipping process, during the resetting process of the flip plate, the lead screw flips under the meshing action of multiple gears and bevel gears, and the moving block moves in the opposite direction, and the winding shaft winds the cable through the cooperation of the third gear and the rack, so as to avoid the cable from accumulating in the power supply box;

[0024] Step S4: The integrated machine is lifted and lowered by two linear modules on both sides of the lifting box, and the operating box is driven to move upward in the lifting box by the two linear modules, and the integrated machine at the upper end of the operating box is raised to a specified height. Then, the support shaft is arranged to cooperate with the damping fixing component in the operating box, and the integrated machine can be rotated to a specified angle to facilitate multi-angle teaching operations;

[0025] Step S5: The angle of the integrated machine is fixed. When the angle of the integrated machine is adjusted, the operating shaft located in the operating box rotates with the integrated machine. Under the meshing of the fourth gear and the two fifth gears at the upper ends of the two operating shafts, the two operating shafts rotate on both sides of the operating box. The two friction plates located on one side of the two propulsion rods contact the two operating shafts, increasing the rotation resistance of the two operating shafts. Under the push of the two springs in the two mounting sleeves, the contact force between the friction plate at one end of the propulsion rod and the operating rod can be guaranteed to fix the rotation angle of the integrated machine.

[0026] A multifunctional multimedia combination table and chair made by utilizing the technical solution of the present invention is compared with the prior art: the flip projection structure adopted in this case can stand up the projector when in use, and cooperate with the provided cable winding component and the flipped projector to wind and release the cable, so that the cable of the projector can always remain in a straight state, avoiding the phenomenon of exposed cables and cable accumulation when the projector is used, and at the same time, no external power supply is required. The overall mechanical parts such as gears and worm gears cooperate with each other, which can fully guarantee the stability of cable winding and mobile power supply, and the adopted lifting display structure can realize the lifting and storage of the all-in-one machine, and the overall angle of the all-in-one machine can be adjusted according to different teaching needs to ensure the overall teaching effect, and during the idle process, the all-in-one machine can be completely stored in the lifting box, and the projector can be flipped and reset, which can fully guarantee the overall storage stability of the all-in-one machine and the projector, and avoid damage to equipment such as the all-in-one machine and the projector. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the main three-dimensional structure of a multifunctional multimedia combination table and chair according to the present invention.

[0028] Figure 2 This is a schematic diagram of the main structure of a multifunctional multimedia combination table and chair according to the present invention.

[0029] Figure 3 The present invention is a schematic diagram of a partial three-dimensional structure of a multifunctional multimedia combination table and chair.

[0030] Figure 4 The present invention is a partial bottom view of a multifunctional multimedia combination table and chair.

[0031] Figure 5 This is an enlarged structural schematic diagram of point A of the multifunctional multimedia combination table and chair described in the present invention.

[0032] Figure 6 This is a schematic diagram of the enlarged structure of point B of the multifunctional multimedia combination table and chair described in the present invention.

[0033] Figure 7 This is a schematic diagram of the enlarged structure of point C of a multifunctional multimedia combination table and chair described in the present invention.

[0034] In the figure: 1, bottom plate, 2, table, 3, slide, 4, mobile frame, 5, seat, 6, power supply box, 7, shaft, 8, flip plate, 9, limit plate, 10, mounting frame, 11, projector, 12, first bearing plate, 13, transmission shaft, 14, first gear, 15, second gear, 16, first bevel gear, 17, second bearing plate, 18, lead screw, 19, second bevel gear, 20, guide rod, 21, moving block, 22, mounting shaft, 23, winding shaft, 24, The third gear, 25, rack, 26, fixed frame, 27, fixing bolt, 28, wrapping frame, 29, lifting box, 30, linear module, 31, operating box, 32, supporting shaft, 33, all-in-one machine, 34, fourth gear, 35, operating shaft, 36, fifth gear, 37, mounting sleeve, 38, spring, 39, push rod, 40, friction plate, 41, positioning hole, 42, positioning sleeve, 43, positioning rod, 44, positioning frame, 45, sound playback unit. DETAILED DESCRIPTION

[0035] The present invention will be described in detail below in conjunction with the accompanying drawings. Figure 1-7 Shown is a multifunctional multimedia combination table and chair.

[0036] Embodiment: A multifunctional multimedia combination table and chair, comprising a bottom plate 1, a table 2, two slide grooves 3, a mobile frame 4 and a seat 5, wherein the table 2 is fixedly mounted on the upper end of the bottom plate 1, the two slide grooves 3 are both located on the upper end of the bottom plate 1, the two ends of the mobile frame 4 are respectively movably embedded in the two slide grooves 3, the seat 5 is fixedly mounted on the upper end of the mobile frame 4, a flip projection structure is provided on one side of the table 2, and a lifting display structure is provided at the rear end center of the table 2;

[0037] The flip projection structure includes: a power supply box 6, a shaft 7, a flip plate 8, a limit plate 9, a fixing assembly, a mounting frame 10, a projector 11, a first bearing plate 12, a transmission shaft 13, a first gear 14, a second gear 15, a first bevel gear 16 and a cable winding assembly;

[0038] The power supply box 6 is fixedly installed on one side of the table 2, and the two ends of the shaft body 7 are movably embedded in the wall surfaces on both sides of the power supply box 6. One end of the flip plate 8 is fixedly connected to the shaft body 7, and the limit plate 9 is fixedly installed on the other side of the power supply box 6. The fixed component is installed on the upper end of the flip plate 8, and the mounting frame 10 is movably embedded in the fixed component. The projector 11 is fixedly installed on one side of the mounting frame 10, and the first bearing plate 12 is fixedly installed on one side of the lower end of the power supply box 6. The transmission shaft 13 is movably embedded in the first bearing plate 12. The first gear 14 is fixedly installed on the upper end of the shaft body 7, and the second gear 15 is fixedly installed on the upper end of the transmission shaft 13 and meshes with the first gear 14. The first bevel gear 16 is fixedly installed on the other side of the transmission shaft 13, and the cable winding assembly is fixedly installed on one side of the upper wall surface of the power supply box 6 and meshes with the first bevel gear 16.

[0039] When installing the equipment, the table 2 is moved to the designated position, the device is supported by the bottom plate 1, and then the device is connected to the power supply, and the projector 11 and the all-in-one machine 33 are lifted and fixed at the designated angle by the flip projection structure and the lifting display structure. Then, the seat 5 at the upper end of the mobile frame 4 is pulled to move the mobile frame 4 in the two slide grooves 3, and the seat 5 is moved to the designated position. The teaching staff sits on the upper end of the seat 5, and cooperates with the flip projection structure and the lifting display structure to carry out multimedia teaching. When the projector 11 is flipped, first Pull one end of the flip plate 8 to make the flip plate 8 and the shaft 7 rotate on one side of the upper end of the power supply box 6. During the rotation of the shaft 7, the first gear 14 located in the upper end of the shaft 7 rotates with the shaft 7. Under the meshing action of the first gear 14 and the second gear 15, the transmission shaft 13 and the first bevel gear 16 rotate in the first bearing plate 12, and drive the cable winding assembly to move on the upper wall surface of the power supply box 6 to provide mobile power to the projector 11. The mounting bracket 10 and the projector 11 can be removed by the fixing assembly to facilitate the replacement of the projector 11.

[0040] In the specific implementation process, the cable reel assembly includes: two second bearing plates 17, a screw rod 18, a second bevel gear 19, a guide rod 20, a moving block 21, a mounting shaft 22, a reel shaft 23, a third gear 24 and a rack 25;

[0041] The two second bearing plates 17 are respectively installed on both sides of the upper wall surface of the power supply box 6, and the two ends of the screw rod 18 are respectively movably embedded in the two second bearing plates 17. The second bevel gear 19 is fixedly installed on the upper end of the screw rod 18 and meshes with the first bevel gear 16. The guide rod 20 is fixedly installed on the upper wall surface of the power supply box 6. The moving block 21 is movably mounted on the upper end of the screw rod 18 and movably mounted on the upper end of the guide rod 20. One end of the mounting shaft 22 is movably mounted on one side of the moving block 21 through a bearing. The winding shaft 23 is fixedly installed on one side of the mounting shaft 22. The third gear 24 is fixedly installed on the upper end of the mounting shaft 22, and the rack 25 is fixedly installed on the upper wall surface of the power supply box 6.

[0042] During the flipping process of the flip plate 8, the first bevel gear 16 is meshed with the second bevel gear 19 at the upper end of the screw rod 18, driving the screw rod 18 to rotate in the two second bearing plates 17, thereby changing the position of the moving block 21 at the upper end of the screw rod 18 and the guide rod 20. When the moving block 21 moves, the third gear 24 located at the upper end of the mounting shaft 22 rolls on the upper end of the rack 25, causing the mounting shaft 22 and the winding shaft 23 to rotate on one side of the moving block 21, releasing the cable to ensure the power supply effect of the projector 11 during the flipping process. During the resetting process of the flip plate 8, the screw rod 18 is flipped under the meshing action of multiple gears and bevel gears, and the moving block 21 moves in the opposite direction. The third gear 24 cooperates with the rack 25, and the winding shaft 23 winds up the cable to avoid cable accumulation in the power supply box 6.

[0043] In the specific implementation process, the fixing assembly includes: a fixing frame 26, two fixing bolts 27 and two wrapping frames 28;

[0044] The fixing frame 26 is fixedly mounted on the upper end of the flip plate 8 , and two fixing bolts 27 are respectively embedded in the mounting frame 10 and the fixing frame 26 . The two wrapping frames 28 are both located on the other side of the flip plate 8 .

[0045] When installing the projector 11 , the projector 11 may be wrapped by two wrapping frames 28 , and the mounting frame 10 may be fixed in the fixing frame 26 by fixing bolts 27 , thereby fixing the mounting frame 10 and the projector 11 .

[0046] In the specific implementation process, the lifting display structure includes: a lifting box 29, two linear modules 30, an operating box 31, a support shaft 32, an integrated machine 33 and a damping fixing component;

[0047] The lifting box 29 is fixedly installed at the rear end of the table 2, and the two linear modules 30 are respectively installed on the side walls of the lifting box 29, and the driving ends are respectively movable through the side walls of the lifting box 29, and the two ends of the operating box 31 are respectively connected to the driving ends of the two linear modules 30, and the bottom end of the support shaft 32 is movably embedded in the center of the operating box 31, the all-in-one machine 33 is fixedly installed on the upper end of the support shaft 32, and the damping fixing assembly is installed in the operating box 31 and connected to the support shaft 32.

[0048] During teaching, the two linear modules 30 on both sides of the lifting box 29 work, and the operating box 31 is driven to move upward in the lifting box 29 by the two linear modules 30, and the integrated machine 33 at the upper end of the operating box 31 is raised to a specified height. Then, the support shaft 32 is arranged to cooperate with the damping fixing component in the operating box 31, so that the integrated machine 33 can be rotated to a specified angle to facilitate multi-angle teaching operations.

[0049] In the specific implementation process, the damping fixing assembly includes: a fourth gear 34, two operating shafts 35, two fifth gears 36, two mounting sleeves 37, two springs 38, two propulsion rods 39 and two friction plates 40;

[0050] The fourth gear 34 is fixedly mounted on the upper end of the support shaft 32, the two operating shafts 35 are movably mounted on both sides of the operating box 31, the two fifth gears 36 are respectively mounted on the upper ends of the two operating shafts 35, and are respectively meshed with both sides of the fourth gear 34, the two mounting sleeves 37 are respectively mounted on the inner walls of both sides of the operating box 31, the two springs 38 are respectively movably embedded in the two mounting sleeves 37, the two push rods 39 are respectively movably embedded in the two mounting sleeves 37, and one end is respectively in contact with the two springs 38, and the two friction plates 40 are respectively mounted on one end of the two push rods 39, and are respectively fitted with one side of the two operating shafts 35.

[0051] When the angle of the integrated machine 33 is adjusted, the operating shaft 35 located in the operating box 31 rotates with the integrated machine 33. Under the meshing of the fourth gear 34 and the two fifth gears 36 at the upper ends of the two operating shafts 35, the two operating shafts 35 rotate on both sides in the operating box 31. The two friction plates 40 located on one side of the two propulsion rods 39 contact the two operating shafts 35 to increase the rotation resistance of the two operating shafts 35. Under the push of the two springs 38 in the two mounting sleeves 37, the contact force between the friction plate 40 at one end of the propulsion rod 39 and the operating rod can be guaranteed to fix the rotation angle of the integrated machine 33.

[0052] In the specific implementation process, a positioning structure is provided at the upper end of the power supply box 6, and the positioning structure includes: four positioning holes 41, a positioning sleeve 42, a positioning rod 43 and a positioning frame 44;

[0053] Four positioning holes 41 are evenly opened at the upper end of the first gear 14, the positioning sleeve 42 is fixedly installed on one side of the upper end of the power supply box 6, one end of the positioning rod 43 is movably embedded in the positioning sleeve 42, and the other end is movably embedded in one of the positioning holes 41, and the positioning frame 44 is fixedly installed on the upper end of the power supply box 6, and movably sleeved on the upper end of the positioning rod 43.

[0054] When the flip plate 8 is flipped and fixed, one end of the positioning rod 43 located in the positioning sleeve 42 and the positioning frame 44 is embedded in the designated positioning hole 41 at the upper end of the first gear 14 to fix the rotation angle of the first gear 14 and realize the flip positioning of the flip plate 8.

[0055] In the specific implementation process, sound playing units 45 are installed on both sides of the operation box 31 .

[0056] In the specific implementation process, a cable connector is movably installed at one end of the reel 23 .

[0057] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. A multifunctional multimedia combination table and chair, comprising a base plate (1), a table (2), two slides (3), a movable frame (4) and a seat (5), It is characterized in that The table (2) is fixedly mounted on the upper end of the base plate (1), the two slide grooves (3) are both located on the upper end of the base plate (1), the two ends of the movable frame (4) are respectively movably embedded in the two slide grooves (3), the seat (5) is fixedly mounted on the upper end of the movable frame (4), a flip projection structure is provided on one side of the table (2), and a lifting display structure is provided at the center of the rear end of the table (2); The flip projection structure comprises: a power supply box (6), a shaft (7), a flip plate (8), a limit plate (9), a fixing assembly, a mounting frame (10), a projector (11), a first bearing plate (12), a transmission shaft (13), a first gear (14), a second gear (15), a first bevel gear (16) and a cable winding assembly; The power supply box (6) is fixedly installed on one side of the table (2), the two ends of the shaft (7) are movably embedded in the two side walls of the power supply box (6), one end of the flip plate (8) is fixedly connected to the shaft (7), the limit plate (9) is fixedly installed on the other side of the power supply box (6), the fixed component is installed on the upper end of the flip plate (8), the mounting frame (10) is movably embedded in the fixed component, the projector (11) is fixedly installed on one side of the mounting frame (10), and the first bearing plate (12) is fixedly installed on the first side of the mounting frame (10). The first gear (14) is fixedly mounted on one side of the lower end of the power supply box (6), the transmission shaft (13) is movably embedded in the first bearing plate (12), the first gear (14) is fixedly mounted on the upper end of the shaft (7), the second gear (15) is fixedly mounted on the upper end of the transmission shaft (13) and meshes with the first gear (14), the first bevel gear (16) is fixedly mounted on the other side of the transmission shaft (13), and the cable winding assembly is fixedly mounted on one side of the upper wall of the power supply box (6) and meshes with the first bevel gear (16).

2. A multifunctional multimedia combination table and chair according to claim 1, It is characterized in that The cable reel assembly comprises: two second bearing plates (17), a screw rod (18), a second bevel gear (19), a guide rod (20), a moving block (21), a mounting shaft (22), a reel shaft (23), a third gear (24) and a rack (25); The two second bearing plates (17) are respectively mounted on both sides of the inner upper wall of the power supply box (6); the two ends of the screw rod (18) are respectively movably embedded in the two second bearing plates (17); the second bevel gear (19) is fixedly mounted on the upper end of the screw rod (18) and meshes with the first bevel gear (16); the guide rod (20) is fixedly mounted on the inner upper wall of the power supply box (6); the moving block (21) is movably mounted on the upper end of the screw rod (18) and movably mounted on the upper end of the guide rod (20); one end of the mounting shaft (22) is movably mounted on one side of the moving block (21) through a bearing; the winding shaft (23) is fixedly mounted on one side of the mounting shaft (22); the third gear (24) is fixedly mounted on the upper end of the mounting shaft (22); and the rack (25) is fixedly mounted on the inner upper wall of the power supply box (6).

3. A multifunctional multimedia combination table and chair according to claim 1, It is characterized in that The fixing assembly comprises: a fixing frame (26), two fixing bolts (27) and two wrapping frames (28); The fixing frame (26) is fixedly mounted on the upper end of the flip plate (8), the two fixing bolts (27) are respectively embedded in the mounting frame (10) and the fixing frame (26), and the two wrapping frames (28) are both located on the other side of the flip plate (8).

4. A multifunctional multimedia combination table and chair according to claim 1, It is characterized in that The lifting display structure comprises: a lifting box (29), two linear modules (30), an operating box (31), a support shaft (32), an integrated machine (33) and a damping fixing component; The lifting box (29) is fixedly installed at the rear end of the table (2), the two linear modules (30) are respectively installed on the side walls of the lifting box (29), and the driving ends are movably passed through the side walls of the lifting box (29), the two ends of the operating box (31) are respectively connected to the driving ends of the two linear modules (30), the bottom end of the support shaft (32) is movably embedded in the center of the operating box (31), the all-in-one machine (33) is fixedly installed on the upper end of the support shaft (32), and the damping fixing component is installed in the operating box (31) and connected to the support shaft (32).

5. A multifunctional multimedia combination table and chair according to claim 4, It is characterized in that The damping fixing assembly comprises: a fourth gear (34), two operating shafts (35), two fifth gears (36), two mounting sleeves (37), two springs (38), two propulsion rods (39) and two friction plates (40); The fourth gear (34) is fixedly mounted on the upper end of the support shaft (32); the two operating shafts (35) are movably mounted on both sides of the operating box (31); the two fifth gears (36) are respectively mounted on the upper ends of the two operating shafts (35) and are respectively meshed with both sides of the fourth gear (34); the two mounting sleeves (37) are respectively mounted on the inner walls of both sides of the operating box (31); the two springs (38) are respectively movably embedded in the two mounting sleeves (37); the two propulsion rods (39) are respectively movably embedded in the two mounting sleeves (37) and one end of each of each of each of each of each of the two springs (38); and the two friction plates (40) are respectively mounted on one end of each of the two propulsion rods (39) and are respectively fitted with one side of each of the two operating shafts (35).

6. A multifunctional multimedia combination table and chair according to claim 1, It is characterized in that The upper end of the power supply box (6) is provided with a positioning structure, and the positioning structure comprises: four positioning holes (41), a positioning sleeve (42), a positioning rod (43) and a positioning frame (44); The four positioning holes (41) are evenly arranged at the upper end of the first gear (14); the positioning sleeve (42) is fixedly mounted on one side of the upper end of the power supply box (6); one end of the positioning rod (43) is movably embedded in the positioning sleeve (42), and the other end is movably embedded in one of the positioning holes (41); the positioning frame (44) is fixedly mounted on the upper end of the power supply box (6), and is movably sleeved on the upper end of the positioning rod (43).

7. A multifunctional multimedia combination table and chair according to claim 4, It is characterized in that Sound playing units (45) are installed on both sides of the operation box (31).

8. The multifunctional multimedia combination table and chair according to claim 2, It is characterized in that A cable connector is movably mounted on one end of the reel (23).

9. A method for using the multifunctional multimedia combination table and chair as claimed in any one of claims 1 to 8, It is characterized in that The following steps are involved: Step S1: Equipment installation, move the table to the designated position, support the device through the bottom plate, then connect the device to the power supply, and lift and fix the projector and the all-in-one machine at the designated angle by working the flip projection structure and the lifting display structure, then pull the seat on the upper end of the mobile frame to move the mobile frame in the two slide slots, move the seat to the designated position, and conduct multimedia teaching by sitting on the upper end of the seat and cooperating with the flip projection structure and the lifting display structure; Step S2: flipping the projector. When flipping the projector, first pull one end of the flip plate to make the flip plate and the shaft body rotate on one side of the upper end of the power supply box. During the rotation of the shaft body, the first gear located in the upper end of the shaft body rotates with the shaft body. Under the meshing action of the first gear and the second gear, the transmission shaft and the first bevel gear rotate in the first bearing plate, and drive the cable winding assembly to move on the upper wall of the power supply box to provide mobile power to the projector. The mounting frame and the projector can be removed by the fixing assembly to facilitate the replacement of the projector. Step S3: Cable winding and releasing, the first bevel gear is meshed with the second bevel gear at the upper end of the lead screw, driving the lead screw to rotate in the two second bearing plates, changing the position of the moving block at the upper end of the lead screw and the guide rod, when the moving block moves, the third gear located at the upper end of the mounting shaft rolls on the upper end of the rack, so that the mounting shaft and the winding shaft rotate on one side of the moving block, and the cable is released to ensure the power supply effect of the projector during the flipping process, during the resetting process of the flip plate, the lead screw flips under the meshing action of multiple gears and bevel gears, and the moving block moves in the opposite direction, and the winding shaft winds the cable through the cooperation of the third gear and the rack, so as to avoid the cable from accumulating in the power supply box; Step S4: The integrated machine is lifted and lowered by two linear modules on both sides of the lifting box, and the operating box is driven to move upward in the lifting box by the two linear modules, and the integrated machine at the upper end of the operating box is raised to a specified height. Then, the support shaft is arranged to cooperate with the damping fixing component in the operating box, and the integrated machine can be rotated to a specified angle to facilitate multi-angle teaching operations; Step S5: The angle of the integrated machine is fixed. When the angle of the integrated machine is adjusted, the operating shaft located in the operating box rotates with the integrated machine. Under the meshing of the fourth gear and the two fifth gears at the upper ends of the two operating shafts, the two operating shafts rotate on both sides of the operating box. The two friction plates located on one side of the two propulsion rods contact the two operating shafts, increasing the rotation resistance of the two operating shafts. Under the push of the two springs in the two mounting sleeves, the contact force between the friction plate at one end of the propulsion rod and the operating rod can be guaranteed to fix the rotation angle of the integrated machine.

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