Multimedia education and teaching device

Abstract

The application relates to the technical field of teaching aids, and provides a multimedia education and teaching device, which comprises a multimedia display system and a platform control system, wherein the multimedia display system comprises a blackboard unit, a multimedia screen and a first wireless communication module; the first wireless communication module is used for receiving control instructions and image information of the platform control system; the blackboard unit comprises a frame assembly and a plurality of blackboard plates; the frame assembly has a mounting area and a storage area; the multimedia screen is fixedly mounted on the mounting area; the inner frame bottom wall of the frame assembly is fixed with a sliding track; one of all the blackboard plates is arranged as an edge plate; the edge plate is movably arranged in the storage area; and the remaining blackboard plates are respectively slidably mounted on the sliding track. Based on the above, the multimedia screen with a larger size can be mounted by collectively storing the blackboard plates on one side of the blackboard unit, so that students in the back row can clearly see the content displayed on the multimedia screen.

Description

Technical Field

[0001] This application relates to the field of teaching aids technology, and in particular to a multimedia educational teaching device. Background Technology

[0002] Multimedia educational equipment refers to modern teaching tools that integrate multiple media technologies (such as text, images, sound, video, animation, etc.) and interactive functions to assist teaching activities. Through digital, networked, and intelligent technologies, it deeply integrates traditional teaching with information technology, providing teachers and students with a richer, more intuitive, and interactive teaching experience.

[0003] Chinese patent CN112967537A discloses an interactive teaching device for English teaching, which is essentially a multimedia educational device. It includes a multimedia podium control system and a multimedia screen control system. The multimedia screen control system includes a blackboard unit, a multimedia screen, and a telescopic drive device. The multimedia screen is slidably installed inside the blackboard unit via the telescopic drive device. When the multimedia screen needs to be used, the telescopic drive device can be controlled to move the multimedia screen to one side of the blackboard unit, thereby effectively combining blackboard writing with multimedia teaching and improving teaching effectiveness.

[0004] However, the telescopic drive device in the above solution can only move the multimedia screen when the screen size is small, so it is only suitable for small classrooms. If the above solution is applied to a large classroom, students sitting in the back row often cannot see the information displayed on the multimedia screen due to the large number of students, which limits its use.

[0005] In large classrooms, to ensure students can clearly see the content displayed on the multimedia screen, manufacturers have considered using large-sized multimedia screens and designing the blackboard unit as a sliding type. This allows the blackboard panel to be moved to reveal the multimedia screen inside the blackboard unit when needed. However, existing sliding blackboards are generally double-sided sliding designs. The multimedia screen is installed in the middle of the blackboard unit, and its lateral length is limited by the blackboard panels on both sides. This results in the multimedia screen not being able to be made large enough, and there may be situations where students in the back rows have difficulty seeing the screen content. Improvements are needed. Summary of the Invention

[0006] Based on this, this application provides a multimedia educational teaching device that, by storing all the blackboard panels together on one side of the blackboard unit, allows for the installation of a larger multimedia screen, so that students in the back row can clearly see the content displayed on the multimedia screen.

[0007] The multimedia educational device provided in this application adopts the following technical solution:

[0008] A multimedia educational teaching device includes a multimedia display system and a podium control system. The multimedia display system includes a blackboard unit, a multimedia screen, and a first wireless communication module. The podium control system includes a controller, a control panel, and a second wireless communication module. The controller is connected to the control panel and the second wireless communication module respectively, and is used to receive wireless control commands issued by the control panel and transmit them to the first wireless communication module via the second wireless communication module to transmit image information to the multimedia screen.

[0009] The blackboard unit includes a frame assembly and multiple blackboard panels. The frame assembly has side-by-side installation and storage areas, and the multimedia screen is fixedly installed in the installation area. A sliding rail is fixed to the bottom wall of the inner frame of the frame assembly, and the sliding rail is located on the front side of the installation area.

[0010] One of the blackboard panels is designated as the edge panel, which is movably positioned in the storage area. The remaining blackboard panels are slidably installed on sliding tracks. In the first usage state, all the blackboard panels are side by side, abutting against each other and covering the inner frame area of ​​the frame assembly. In the second usage state, each blackboard panel sequentially detaches from the sliding tracks, enters the storage area, and is stored together in the storage area.

[0011] Optionally, a hooking mechanism is provided between adjacent blackboard panels. The hooking mechanism includes a fixed post and a deflecting claw plate. The fixed post is fixedly embedded in the back of the blackboard panel, while the deflecting claw plate is rotatably installed on the back of another blackboard panel. The deflecting claw plate is provided with a hook groove. In the first use state, the deflecting claw plate is hooked and fixed to the fixed post through the hook groove. At this time, the deflecting claw plate is located on the side of the fixed post closer to the installation area. A reset component is provided between the deflecting claw plate and the blackboard panel to force the deflecting claw plate to maintain the hooked position with the fixed post in a normal state.

[0012] Optionally, the back edge of the blackboard panel is provided with a first groove for mounting the deflection claw plate. One inner wall of the first groove is set as an inclined surface. The reset component is used to force the deflection claw plate to normally abut against the inclined surface so as to achieve outward deflection of the deflection claw plate. The free end of the deflection claw plate is provided with a guide part. When two adjacent blackboard panels approach each other to the abutment state, the fixing post can abut against the guide part and force the deflection claw plate to deflect outward.

[0013] Optionally, the deflection claw plate includes a central rotating shaft, and the deflection claw plate is rotatably mounted inside the first groove via the central rotating shaft; a load-bearing block is fixedly sleeved on the outer periphery of the central rotating shaft;

[0014] The reset assembly includes a fixed support fixedly embedded in the inner wall of the first groove, a movable column movably installed on the fixed support, and a compression spring disposed between the movable column and the fixed support; the compression spring is used to force the movable column to move outward normally and press against the load-bearing block.

[0015] Optionally, the frame assembly includes a vertical frame beam located outside the storage area. The inner bottom wall and inner top wall of the vertical frame beam are respectively provided with sliding mechanisms. The sliding mechanism has multiple insertion holes on the side near the storage area, and the insertion holes are spaced apart along the thickness direction of the frame assembly. The sliding mechanism has multiple stop slots on the side away from the storage area, and each stop slot is directly connected to each insertion hole.

[0016] The inner bottom / top wall of the vertical frame beam is equipped with a stop mechanism, which can engage with one of the stop slots of the adjacent sliding mechanism to achieve the movement and positioning of the sliding mechanism; each blackboard panel is equipped with a connector that engages with the insertion hole. When the blackboard panel is in the storage area, the connector can be inserted into the corresponding insertion hole in sequence, and the connector can force the stop mechanism to disengage from the stop slot, so as to push each blackboard panel into the storage area in an orderly manner.

[0017] Optionally, the sliding mechanism includes a movable guide rail fixed to the inner bottom / inner top wall of the vertical frame beam and multiple vertical plate frames slidably installed on the movable guide rail, with adjacent vertical plate frames hinged to each other; the number of vertical plate frames is adapted to the number of blackboard panels, and each insertion hole is respectively set in each vertical plate frame.

[0018] The movable guide rail includes a first straight section, a second straight section, and a curved section connecting the first straight section and the second straight section. The first straight section is located on the side of the second straight section closer to the storage area. In the second use state, all the vertical shelves are located in the first straight section, and all the vertical shelves are arranged straight along the extension direction of the first straight section. At this time, the stop mechanism can cooperate with the stop groove closest to the curved section for positioning.

[0019] The inner wall of the vertical frame beam is equipped with a pull-back mechanism, which is connected to one of the vertical plate frames. This mechanism can normally force each vertical plate frame to move along the moving guide rail towards the second straight section, so as to quickly reset the blackboard plate and remove it from the storage area.

[0020] Optionally, the pull-back mechanism includes a retractor fixed to the inner wall of the vertical frame beam, the retractor being located at the end of the second straight segment away from the curved segment; the retractor has a built-in connecting rope and a winding component, the winding component being able to normally force the connecting rope to wind inward;

[0021] The curved section and the second straight section are slidably mounted with guide plate frames. The connecting rope passes through the guide plate frames and is fixed to the guide plate frames. The free end of the connecting rope is fixedly connected to the vertical plate frame. In the first use state, the connecting rope is in the winding state.

[0022] Optionally, the stopping mechanism includes a support base fixed to the inner bottom / inner top wall of the vertical frame beam, a rotating swing arm rotatably mounted on the support base, and a torsion spring disposed between the rotating swing arm and the support base. The torsion spring is used to force the rotating swing arm to normally abut against the side of the vertical plate frame. The free end of the rotating swing arm is provided with a locking part. When the vertical plate frame moves to a position directly opposite the sliding track, the torsion spring can force the locking part to engage with the stopping groove of the vertical plate frame to achieve the moving positioning of the vertical plate frame.

[0023] Optionally, the sliding track has a panel extending into the storage area, and the panel has a first vertical through-hole.

[0024] The bottom of the frame assembly has a second port, which is directly opposite and connected to the first port. A dust collection box is installed inside the second port, and the dust collection box can be detached and installed on the frame assembly via a magnetic attraction mechanism.

[0025] Optionally, the blackboard panel includes a panel frame and two lifting blackboards. The inner frame of the panel frame has two vertical slide grooves on its side, which are arranged side by side. The two lifting blackboards are slidably installed in the two vertical slide grooves respectively. The two lifting blackboards are connected by a pulley rope to achieve simultaneous movement of both.

[0026] Two positioning clamps are fixedly mounted on the inner side of the panel frame, and each lifting blackboard has a limit wheel fixed on its side. When the lifting blackboard moves down to its limit position, the limit wheel can cooperate with the positioning clamp to position and maintain the positioning of the two lifting blackboards.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. The multimedia education and teaching system of this application receives wireless control commands from the control panel through the controller and transmits them to the first wireless communication module via the second wireless communication module, enabling the transmission of image information to the multimedia screen for display. At this time, the user can push each blackboard panel and store all the blackboard panels together in the storage area. The blackboard panel at the front can still be used for blackboard writing, thereby realizing the organic combination of blackboard writing and multimedia teaching and improving the teaching effect.

[0029] 2. The blackboard unit of this application reduces the internal space occupied by the frame assembly after the blackboard panels are stored together on one side of the frame assembly. This allows manufacturers to install a larger multimedia screen inside the frame assembly, so that students in the back row can see the content displayed on the multimedia screen clearly. It can be effectively used in large classrooms, which is conducive to teaching and teacher-student interaction.

[0030] 3. In the first usage state, that is, when the blackboard unit is used as a blackboard for writing, the edge plate and the other blackboard plates can be placed side by side and cover the inner frame area of ​​the frame assembly. At this time, the lateral movement of each blackboard plate is restricted, which facilitates the normal use of the blackboard unit.

[0031] 4. When the multimedia screen is needed, the connector of the edge panel is always inserted into the connector hole. The user can manually press the edge panel to move it inwards into the storage area, thereby moving each vertical panel closer to the first straight section. When one of the vertical panels moves to a position directly opposite the sliding track, the stop mechanism engages with the stop slot of that vertical panel, aligning the blackboard panel with the vertical panel. Pushing the blackboard panel causes its connector to engage with the connector of that vertical panel, forcing the stop mechanism to disengage from the stop slot, allowing the blackboard panel to be pressed inwards again. After multiple actions, each blackboard panel can be sequentially stored in the storage area. Compared to electric drive, manual operation greatly reduces the risk of the user's hand being pinched, lowering safety hazards.

[0032] 5. When the blackboard unit needs to be reset to the first use state, the connector of the blackboard panel at the front in the storage area is always inserted into the connector hole. The user can directly push the blackboard panel to move laterally. At this time, the connector of the blackboard panel is disengaged from the connector hole. Under the tension of the connecting rope, each vertical board frame can move towards the curved section, thereby driving the other blackboard panels to move outward automatically. After multiple actions, all blackboard panels can be reset together to the inner frame area covering the frame assembly.

[0033] 6. When the blackboard unit is reset to the first usage state, by forcing the two blackboard panels to move towards each other, the guide part of the deflection claw plate can first abut against the fixed post during the movement towards the fixed post, thereby forcing the deflection claw plate to automatically rotate towards the installation area; after the two blackboard panels are in contact with each other, the deflection claw plate can match the hook groove and hook onto the fixed post under the action of the reset component, thereby realizing the connection and fixation between the two adjacent blackboard panels, which makes it convenient for the user to push the blackboard panels to move together. When switching the multimedia unfolding system to the second usage state, the user forces the blackboard panel in the storage area to move inward, which can cause the deflection claw plate to automatically disengage from the fixed post, without adversely affecting the storage of the blackboard panel.

[0034] 7. By installing a removable dust collection box inside the frame assembly, when the user switches the blackboard unit to the second use state, the bottom of the blackboard plate can scrape the chalk powder and push the powder to the first opening. At this time, the powder can fall into the dust collection box through the first and second openings for collection, which facilitates the collection and cleaning of powder and makes it convenient to use.

[0035] 8. The blackboard panel of this application consists of two lifting blackboards. When the user writes on the blackboard, the lifting blackboard that has been written on can be moved upward and the lifting blackboard that is to be written on can be moved downward, thereby reducing the obstruction of the written content on the lifting blackboard, making it easier for students to read and effectively improving the quality of teaching. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of this embodiment;

[0037] Figure 2 This is a schematic diagram of the frame assembly and multimedia screen in this embodiment;

[0038] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0039] Figure 4 This is a schematic diagram of the blackboard panel structure in this embodiment;

[0040] Figure 5 This is a schematic diagram of the structure of the lifting blackboard and positioning clamp in this embodiment;

[0041] Figure 6 This is a schematic diagram of the blackboard unit in the second usage state in this embodiment;

[0042] Figure 7 This is a partial sectional view of the vertical frame beam in this embodiment, which mainly shows the specific structure of the sliding mechanism;

[0043] Figure 8This is a structural schematic diagram of multiple vertical plate frames in this embodiment;

[0044] Figure 9 This is a partial sectional view of the vertical frame beam in this embodiment, which mainly shows the specific structure of the moving guide rail;

[0045] Figure 10 This is a partial schematic diagram of the back of the two blackboard panels in this embodiment, mainly illustrating the specific structure of the hooking mechanism;

[0046] Figure 11 yes Figure 10 Enlarged view of point B in the middle;

[0047] Figure 12 This is a partial schematic diagram of the bottom surface of the frame assembly in this embodiment.

[0048] Explanation of reference numerals in the attached diagram: 1. Podium control system; 11. Controller; 12. Control panel; 13. Second wireless communication module; 14. Podium table;

[0049] 2. Multimedia display system; 21. Blackboard unit; 22. Multimedia screen; 23. First wireless communication module;

[0050] 3. Frame assembly; 31. Screen frame; 32. Installation area; 33. Storage area; 34. Sliding track; 341. Panel surface; 342. First opening; 35. Vertical frame beam; 351. Stand; 352. Waist-shaped hole; 36. Backing strip; 37. Second opening;

[0051] 4. Blackboard panel; 41. Panel frame; 411. Vertical slide rail; 42. Lifting blackboard; 421. Connecting post; 422. Limiting wheel; 43. Pulley rope system; 44. Positioning clamp; 441. Clamping area; 45. Connector; 46. First groove; 461. Inclined surface; 47. Second groove; 48. Structural groove; 49. Edge panel;

[0052] 5. Sliding mechanism; 51. Moving guide rail; 511. First straight section; 512. Second straight section; 513. Curved section; 52. Vertical plate frame; 521. Moving column; 522. Insertion hole; 523. Stop groove; 6. Stopping mechanism; 61. Support base; 62. Rotating swing arm; 621. Snap-fit ​​part; 63. Torsion spring;

[0053] 7. Pull-back mechanism; 71. Winder; 72. Connecting rope; 73. Guide plate frame;

[0054] 8. Hooking mechanism; 81. Fixed column; 82. Deflecting claw plate; 821. Central rotating shaft; 822. Claw plate; 823. Hook groove; 824. Guide part; 83. Load-bearing block; 84. Reset assembly; 841. Fixed support; 842. Movable column;

[0055] 9. Dust collection box; 91. Inner groove. Detailed Implementation

[0056] The following is in conjunction with the appendix Figure 1 - Appendix Figure 12 This application will be described in further detail.

[0057] This application discloses a multimedia educational teaching device.

[0058] Reference Figure 1 A multimedia educational teaching device includes a multimedia display system 2 and a podium control system 1. The multimedia display system 2 includes a blackboard unit 21, a multimedia screen 22, and a first wireless communication module 23. The podium control system 1 includes a podium table 14, a controller 11, a control panel 12, and a second wireless communication module 13. The controller 11 is connected to the control panel 12 and the second wireless communication module 13 respectively, and is used to receive wireless control commands issued by the control panel 12 and transmit them to the first wireless communication module 23 via the second wireless communication module 13 to transmit image information to the multimedia screen 22 for display.

[0059] It should be noted that the lectern 14 in this embodiment has a built-in computer, and a monitor is installed on the surface of the lectern 14. This monitor is the control panel 12 mentioned above. The computer is connected to the monitor and can display image information on the monitor. The image information on the monitor can also be transmitted to the first wireless communication module 23 through the second wireless communication module 13, and then projected onto the multimedia screen 22 to realize information interaction.

[0060] Blackboard unit 21 includes frame assembly 3 and blackboard panel 4, wherein, referring to Figure 2 The frame assembly 3 is embedded in the classroom wall. The inner side of the frame assembly 3 has an inner frame area, and a screen frame 31 for mounting the multimedia screen 22 is fixed inside the inner frame area. It should be noted that the inner frame area is divided by the screen frame 31 into an installation area 32 and a storage area 33. The installation area 32 is located inside the screen frame 31, while the storage area 33 is located outside the screen frame 31. The multimedia screen 22 is fixedly installed in the installation area 32.

[0061] Reference Figure 3 The inner frame bottom wall of the frame assembly 3 is fixed with a sliding rail 34. The sliding rail 34 is located on the front side of the installation area 32, and the side of the sliding rail 34 is provided with an integrally formed plate surface 341. The plate surface 341 is a flat plate that extends to the storage area 33. (See also...) Figure 1The blackboard panels 4 are provided in multiple ways. In this embodiment, there are four blackboard panels 4, one of which is located above the surface 341 of the board, while the other blackboard panels 4 are slidably installed on the sliding rails 34. In the first use state, that is, when the blackboard unit 21 is used as a blackboard for writing, the blackboard panels 4 are arranged side by side, and the adjacent blackboard panels 4 abut against each other, so that all the blackboard panels 4 together cover the inner frame area of ​​the frame assembly 3.

[0062] Reference Figure 4 The blackboard panel 4 includes a panel frame 41 and two lifting blackboards 42. The bottom of the panel frame 41 is provided with a guide groove that is adapted to slide along the sliding rail 34, so that the blackboard panel 4 can move along the extension direction of the sliding rail 34. In addition, the bottom of the panel frame 41 is also equipped with rollers (not shown in the figure). The rollers can reduce the frictional resistance between the panel frame 41 and the sliding rail 34, which is beneficial for the user to push the blackboard panel 4 to move.

[0063] The inner frame of the panel frame 41 has two vertical sliding grooves 411 on its side, arranged side by side, and the two lifting blackboards 42 are slidably installed in the two vertical sliding grooves 411 respectively. (See also...) Figure 5 Specifically, each lifting blackboard 42 has two connecting posts 421 fixed on its side. The two connecting posts 421 on the side of the lifting blackboard 42 pass through a vertical slide groove 411, which can both restrict the rotation of the lifting blackboard 42 and allow the lifting blackboard 42 to slide vertically within the vertical slide groove 411. A pulley rope system 43 is provided between the two lifting blackboards 42. The pulley rope system 43 includes a pulley seat, a pull rope, and two movable pulleys. Its specific structure is a conventional design in this field and will not be described in detail here. By connecting the two lifting blackboards 42 through the pulley rope system 43, the two lifting blackboards 42 can move simultaneously in different directions.

[0064] Reference Figure 5 In addition, two positioning clamps 44 are fixedly mounted on the inner side of the plate frame 41, and the two positioning clamps 44 are respectively located at the bottom ends of the two vertical sliding grooves 411. The positioning clamps 44 have an upward-facing clamping area 441, which is an arc-shaped area larger than half a circle, and the positioning clamps 44 themselves have plastic deformation capabilities. Limiting wheels 422 are fixed to the sides of the two lifting blackboards 42, and the limiting wheels 422 are connected to the lower connecting post 421 of the two connecting posts 421 on the side of the lifting blackboard 42. When the lifting blackboard 42 moves downward to the limit position, the limiting wheel 422 can open the positioning clamps 44 and enter the clamping area 441, thereby realizing the positioning and holding of the lifting blackboard 42.

[0065] Therefore, when a user writes on the lifting blackboard 42, the written content on the lifting blackboard 42 can be moved upwards, causing the content to be written on to be moved downwards. This reduces the obstruction of the written content on the lifting blackboard 42, making it easier for students to read and effectively improving the quality of teaching.

[0066] Back Figure 1 , Figure 2 In this embodiment, the blackboard panel 4 closest to the podium 14 among all blackboard panels 4 is defined as the edge panel 49. The edge panel 49 is always movably positioned in the storage area 33. When the multimedia screen 22 is needed for image display or teaching, the user can force the edge panel 49 to move inward into the storage area 33, and then force each blackboard panel 4 to sequentially disengage from the sliding track 34 and enter the storage area 33. All blackboard panels 4 are then stored together in the storage area 33, allowing the multimedia screen 22 inside the frame assembly 3 to be exposed (e.g., ...). Figure 6 As shown in the diagram, this achieves an organic combination of blackboard writing and multimedia teaching, improving teaching effectiveness. It should be noted that the state in which all blackboard panels 4 are collectively stored in storage area 33 is the second usage state.

[0067] Reference Figure 6 , Figure 7 The frame assembly 3 includes a vertical frame beam 35 located outside the storage area 33. The inner bottom wall and inner top wall of the vertical frame beam 35 are respectively provided with sliding mechanisms 5. It can be understood that the two sets of sliding mechanisms 5 have the same specific structure. The following description takes the sliding mechanism 5 located on the inner bottom wall of the vertical frame beam 35 as an example.

[0068] Specific reference Figure 7 The sliding mechanism 5 includes a moving guide rail 51 and vertical plate frames 52. The moving guide rail 51 is fixed to the inner bottom wall of the vertical frame beam 35. The number of vertical plate frames 52 is equal to the number of blackboard panels 4. Each vertical plate frame 52 is slidably mounted on the moving guide rail 51, and adjacent vertical plate frames 52 are hinged to each other. It should be noted that in this embodiment, the cross-sectional shape of the inner track of the moving guide rail 51 is an inverted T-shape; and referring to... Figure 8 Each vertical frame 52 has a fixedly connected movable column 521 at its bottom. The movable column 521 is slidably engaged with the movable guide rail 51, so that the vertical frame 52 can move along the movable guide rail 51.

[0069] Reference Figure 9 The movable guide rail 51 includes a first straight segment 511, a second straight segment 512, and a curved segment 513 connecting the first straight segment 511 and the second straight segment 512. The first straight segment 511 is located on the side of the second straight segment 512 closer to the storage area 33. (See also...) Figure 7In the second usage state, each vertical plate frame 52 is located within the first straight section 511, and all vertical plate frames 52 can be arranged in a straight line along the extension direction of the first straight section 511; the inner wall of the vertical frame beam 35 is fixed with a stop 351. When the vertical plate frame 52 is located in the first straight section 511, the side of the vertical plate frame 52 can abut against the stop 351, thereby restricting the rotation of the vertical plate frame 52 and keeping each vertical plate frame 52 in a straight line.

[0070] Back Figure 8 Each vertical shelf 52 has a connector hole 522 on the side closest to the storage area 33. The connector holes 522 are located in the middle of the vertical shelf 52, and the spacing between each connector hole 522 is equal. In addition, each vertical shelf 52 has a stop groove 523 on the side away from the storage area 33, and each stop groove 523 can communicate directly with each connector hole 522. (See also...) Figure 7 The inner bottom wall of the vertical frame beam 35 is provided with a stop mechanism 6, which can engage with one of the stop slots 523 of the sliding mechanism 5 to achieve the movement and positioning of the sliding mechanism 5.

[0071] Reference Figure 7 Specifically, the stopping mechanism 6 includes a support base 61 fixed to the inner bottom wall of the vertical frame beam 35, a rotating swing arm 62 rotatably mounted on the support base 61, and a torsion spring 63 disposed between the rotating swing arm 62 and the support base 61. The torsion spring 63 can always generate a torque acting on the rotating swing arm 62, thereby causing the free end of the rotating swing arm 62 to normally abut against the side of the vertical plate frame 52. In addition, referring to... Figure 9 The free end of the rotating swing arm 62 is provided with an integrally formed locking part 621. When the vertical plate frame 52 is in a position directly opposite to the sliding track 34, the torsion spring 63 can force the locking part 621 to engage with the stop groove 523 on the vertical plate frame 52 to achieve the movement and positioning of the vertical plate frame 52.

[0072] Back Figure 4 Each blackboard panel 4 has two connectors 45 fixed to its side, each corresponding to one of the two sliding mechanisms 5. Simultaneously, a structural groove 48 is provided on the side of the blackboard panel 4 adjacent to this panel. This groove 48 accommodates the connectors 45, ensuring a tight fit between the two blackboard panels 4. (See also...) Figure 7 , Figure 9 The side of the vertical frame beam 35 has a through waist-shaped hole 352. When the blackboard board 4 is located in the storage area 33, the plug 45 of the blackboard board 4 can pass through the waist-shaped hole 352 and be inserted into the plug hole 522 of the vertical board frame 52. The plug 45 can force the locking part 621 of the rotating swing arm 62 to disengage from the stop slot 523, so that the blackboard board 4 can move together with the sliding mechanism 5.

[0073] Reference Figure 7 , Figure 9 A pull-back mechanism 7 is provided on the inner wall of the vertical frame beam 35. Specifically, the pull-back mechanism 7 includes a winding device 71 fixed to the inner wall of the vertical frame. The winding device 71 is located at the end of the second straight segment 512 away from the curved segment 513. It should be noted that the winding device 71 used in this embodiment is prior art. The collector itself has a built-in connecting rope 72 and a winding component. The winding component can normally force the connecting rope 72 to wind inward. A guide plate frame 73 is slidably installed between the curved segment 513 and the second straight segment 512. The connecting rope 72 can pass through the guide plate frame 73 and be fixed to the guide plate frame 73. The free end of the connecting rope 72 is fixedly connected to the vertical plate frame 52. Based on this, the connecting rope 72, guided by the guide plate frame 73, can always generate a pulling force acting on the vertical plate frame 52, thereby normally forcing each vertical plate frame 52 to move along the moving guide rail 51 towards the second straight segment 512.

[0074] It should be noted that, in the first usage state, the vertical plate frame 52 furthest from the second straight section 512 can be located on the first straight section 511 and remain directly opposite the sliding track 34. At this time, the connector 45 of the edge plate 49 is always inserted into the connector hole 522; at the same time, refer to Figure 3 The inner frame bottom wall of the frame assembly 3 is provided with a stop bar 36. The stop bar 36 is located in front of the storage area 33. Since the connecting rope 72 is always in a coiled state, the tension of the connecting rope 72 on the vertical board frame 52 can make the edge plate 49 always abut against the stop bar 36, so that the edge plate 49 always remains side by side with the other blackboard plates 4.

[0075] Additionally, in the first usage state, the remaining vertical frame 52 can be moved to the curved section 513 or the second straight section 512 under the tension of the connecting rope 72; see reference. Figures 6-9 When the blackboard unit 21 needs to be switched to the second use state, the user presses the blackboard plate 4 to move inward toward the storage area 33. At this time, each vertical board frame 52 can follow the blackboard plate 4 and move toward the direction of the first straight section 511. When the next vertical board frame 52 is in a position directly opposite the sliding track 34, the locking part 621 of the rotating swing arm 62 can be locked in the stop slot 523 under the torque of the torsion spring 63 to restrict the movement of each vertical board frame 52. Subsequently, the user can move the next blackboard plate 4 to the storage area 33 and insert the connector 45 of the blackboard plate 4 into the connector hole 522. The user can press the blackboard plate 4 again to move it inward toward the storage area 33, so that each blackboard plate 4 can be pushed into the storage area 33 in an orderly manner.

[0076] It is worth mentioning that, in the second usage state, the stop mechanism 6 can be positioned by engaging with the stop slot 523 of the vertical frame 52 closest to the curved section 513; at this time, the connector 45 of the outermost blackboard panel 4 is always inserted into the connector hole 522 of the vertical frame 52, and always tends to move away from the vertical frame beam 35. Based on this, a plastic sleeve can be fitted around the outer periphery of the connector 45 of the outermost blackboard panel 4 to increase the resistance between the connector 45 and the connector hole 522, thereby positioning the blackboard panel 4.

[0077] Additionally, when the blackboard unit 21 needs to be switched to the first use state, the user forces the blackboard plate 4 to move laterally into the sliding track 34. At this time, the connector 45 disengages from the connector hole 522, and the locking part 621 is re-locked into the stop slot 523 under the torque of the torsion spring 63. One side of the locking part 621 has a rounded chamfer. Under the tension of the connecting rope 72, the vertical plate frame 52 moves along the moving guide rail 51 towards the direction of the second straight section 512. The rounded chamfer of the locking part 621 can directly force the rotating arm plate to rotate outward, thereby realizing the automatic reset of each vertical plate frame 52. This allows each vertical plate frame 52 to move outward and reset together with each blackboard plate 4, so as to push each blackboard plate 4 away from the storage area 33.

[0078] Reference Figure 10 A hook mechanism 8 is provided between adjacent blackboard panels 4. When the blackboard panels 4 are arranged side by side, each pair of adjacent blackboard panels 4 are connected to each other through the hook mechanism 8 to achieve synchronous movement of each blackboard panel 4, making it convenient for users to push and store the blackboard panels 4. Specifically, the hook mechanism 8 includes a fixing post 81 and a deflecting claw plate 82. The back edge of the blackboard panel 4 closer to the storage area 33 is provided with a first groove 46, and the deflecting claw plate 82 is rotatably installed in the first groove 46. The back edge of the other blackboard panel 4 away from the storage area 33 is provided with a second groove 47. When the two blackboard panels 4 abut against each other, the first groove 46 can communicate directly with the second groove 47. The fixing post 81 is fixedly installed in the second groove 47, and the axis of the fixing post 81 is vertically arranged.

[0079] Reference Figure 11 It should be noted that the deflection claw plate 82 in this embodiment includes a central rotating shaft 821 and multiple claw plates 822 integrally formed on the central rotating shaft 821. Each claw plate 822 is equidistantly arranged along the axial direction of the central rotating shaft 821. The deflection claw plate 82 is rotatably mounted in the first recess 46 via the central rotating shaft 821. Each claw plate 822 is provided with a hook groove 823, and the hook grooves 823 are vertically aligned. The hook grooves 823 can engage with the fixing post 81 to ensure that each blackboard plate 4 moves synchronously.

[0080] A reset assembly 84 is provided between the deflection claw plate 82 and the corresponding blackboard plate 4. Specifically, the reset assembly 84 includes a fixed support 841 fixedly embedded in the inner wall of the first groove 46, a movable column 842 movably installed on the fixed support 841, and a compression spring (not shown in the figure) disposed between the movable column 842 and the fixed support 841. The compression spring can always generate an elastic force acting on the movable column 842, thereby forcing the movable column 842 to move outward normally. In addition, a support block 83 is fixedly sleeved on the outer periphery of the central rotating shaft 821. Under the elastic force of the compression spring, the movable column 842 can always abut against the support block 83, and the contact position between the movable column 842 and the support block 83 is located on the side of the central rotating shaft 821 away from the hook groove 823, which can always have the tendency to force the free end of the deflection claw plate 82 to rotate inward.

[0081] The inner wall of one side of the first groove 46 is provided with an inclined surface 461. The elastic force of the reset component 84 acting on the deflection claw plate 82 can force the deflection claw plate 82 to normally abut against the inclined surface 461. At this time, the deflection claw plate 82 can deflect outward. The free end of the deflection claw plate 82 is provided with a guide part 824. When two adjacent black plate panels 4 approach each other to the abutting state, the fixing post 81 can first abut against the guide part 824 and force the deflection claw plate 82 to flip outward. After the fixing post 81 enters the inner side of the deflection claw plate 82, the deflection claw plate 82 rotates inward under the action of the reset component 84, so that the hook groove 823 of the claw plate 822 can be locked in the fixing post 81.

[0082] It should be noted that in the first use state, the deflection claw plate 82 is hooked and fixed to the fixing post 81 through the hook groove 823. At this time, the deflection claw plate 82 can be located on the side of the fixing post 81 close to the installation area 32. When the blackboard unit 21 needs to be switched to the second use state, by forcing the blackboard plate 4 located in the storage area 33 to move inward to the storage area 33, the deflection claw plate 82 can automatically detach from the fixing post 81 and will not have an adverse effect on the storage of the blackboard plate 4.

[0083] Additionally, returning Figure 3 In this embodiment, the panel surface 341 has a vertically penetrating first opening 342. The number of first openings 342 is multiple, and the specific number can be determined according to actual needs. The bottom of the frame assembly 3 has a second opening 37, the number of which is equal to the number of first openings 342. Each second opening 37 is directly connected to each first opening 342. (See also...) Figure 12 A dust collection box 9 is installed inside the second port 37. The dust collection box 9 is detachably fixed to the frame assembly 3 by a magnetic attraction mechanism, which facilitates the installation and removal of the dust collection box 9. It should be noted that the specific structure of the magnetic attraction mechanism is a conventional design in this field and will not be described in detail here.

[0084] The bottom of the dust collection box 9 is provided with an inner groove 91, which allows the user's fingers to easily enter and apply force to disengage the dust collection box 9 from the second opening 37. During the lateral movement of each blackboard panel 4, the bottom of the blackboard panel 4 can scrape the chalk powder on the inner bottom wall of the frame assembly 3 and push the chalk powder to the first opening 342. At this time, the chalk powder can fall into the dust collection box 9 through the first opening 342 and the second opening 37 for collection, which facilitates the collection and cleaning of the powder and is convenient to use.

[0085] The above are preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A multimedia education and teaching apparatus comprising a multimedia presentation system (2) and a lectern control system (1), characterized in that: The multimedia display system (2) comprises a blackboard unit (21), a multimedia screen (22) and a first wireless communication module (23), the podium control system (1) comprises a controller (11), a control panel (12) and a second wireless communication module (13), the controller (11) is connected with the control panel (12) and the second wireless communication module (13) respectively, used for receiving the wireless control instruction sent by the control panel (12) and transmitting to the first wireless communication module (23) via the second wireless communication module (13) to transmit image information to the multimedia screen (22); The blackboard unit (21) comprises a frame assembly (3) and a plurality of blackboard plates (4), the frame assembly (3) has a mounting area (32) and a storage area (33) arranged side by side, and the multimedia screen (22) is fixedly installed on the mounting area (32); the inner frame bottom wall of the frame assembly (3) is fixed with a sliding track (34), and the sliding track (34) is located on the front side of the mounting area (32); One of all the blackboard plates (4) is provided as an edge plate (49), and the edge plate (49) is movably arranged in the storage area (33); the remaining blackboard plates (4) are slidably installed on the sliding track (34), and in a first use state, the blackboard plates (4) are arranged side by side and abut against each other and cover the inner frame area of the frame assembly (3) together; in a second use state, the blackboard plates (4) are sequentially separated from the sliding track (34), enter the storage area (33) and are stored in the storage area (33) together; The frame assembly (3) comprises a vertical frame beam (35) located outside the storage area (33), and the inner bottom wall and the inner top wall of the vertical frame beam (35) are respectively provided with a sliding mechanism (5), wherein the sliding mechanism (5) is provided with a plurality of insertion holes (522) on the side close to the storage area (33), and the insertion holes (522) are arranged at intervals along the thickness direction of the frame assembly (3); the side of the sliding mechanism (5) away from the storage area (33) is provided with a plurality of stop clamping grooves (523), and each stop clamping groove (523) is in communication with each insertion hole (522) opposite to each other; The inner bottom wall / inner top wall of the vertical frame beam (35) is provided with a stop mechanism (6), and the stop mechanism (6) can be matched and clamped with one of the stop clamping grooves (523) of the adjacent sliding mechanism (5) to realize the positioning of the sliding mechanism (5); each blackboard plate (4) is provided with an insertion piece (45) matched with the insertion hole (522), and when the blackboard plate (4) is located in the storage area (33), the insertion piece (45) can be sequentially inserted into the corresponding insertion hole (522), and the insertion piece (45) can force the stop mechanism (6) to be separated from the stop clamping groove (523) to realize the orderly pushing of each blackboard plate (4) to the storage area (33).

2. The multimedia education teaching device according to claim 1, characterized in that: A hooking mechanism (8) is arranged between adjacent blackboard plates (4), wherein the hooking mechanism (8) comprises a fixed column (81) and a deflection claw plate (82), the fixed column (81) is fixedly embedded on the back of the blackboard plate (4), and the deflection claw plate (82) is rotatably installed on the back of another blackboard plate (4); the deflection claw plate (82) is provided with a hooking groove (823), in a first use state, the deflection claw plate (82) is hooked and fixed to the fixed column (81) through the hooking groove (823), at this time, the deflection claw plate (82) is located on the side of the fixed column (81) close to the installation area (32); a reset assembly (84) is arranged between the deflection claw plate (82) and the blackboard plate (4) where the deflection claw plate (82) is located, for forcing the deflection claw plate (82) and the fixed column (81) to be normally hooked and positioned.

3. The multimedia education teaching device according to claim 2, characterized in that: An inclined surface (461) is arranged on one side of the inner wall of the first embedding groove (46) of the back edge of the blackboard plate (4), the reset assembly (84) is used to force the deflection claw plate (82) to normally abut against the inclined surface (461), so as to realize the outward deflection of the deflection claw plate (82); a guide portion (824) is arranged on the free end of the deflection claw plate (82), when two adjacent blackboard plates (4) are close to each other to the abutting state, the fixed column (81) can abut against the guide portion (824) and force the deflection claw plate (82) to deflect outward.

4. The multimedia education teaching device according to claim 3, characterized in that: The deflection claw plate (82) comprises a center rotating shaft (821), the deflection claw plate (82) is rotatably installed in the first embedding groove (46) through the center rotating shaft (821); a force bearing block (83) is fixedly sleeved on the outer circumferential side of the center rotating shaft (821); The reset assembly (84) comprises a fixed support (841) fixedly embedded in the inner wall of the first embedding groove (46), a movable column (842) movably installed on the fixed support (841), and a compression spring arranged between the movable column (842) and the fixed support (841); the compression spring is used to force the movable column (842) to normally move outward and abut against the force bearing block (83).

5. The multimedia education teaching device according to claim 1, characterized in that: The sliding mechanism (5) comprises a moving guide rail (51) fixed to the inner bottom wall / inner top wall of the vertical frame beam (35) and a plurality of vertical plate frames (52) slidably installed on the moving guide rail (51), adjacent vertical plate frames (52) are hingedly connected to each other; the number of the vertical plate frames (52) is matched with the number of the blackboard plates (4), and each insertion hole (522) is respectively arranged in each vertical plate frame (52). The moving guide rail (51) comprises a first straight section (511), a second straight section (512) and a curved section (513) connected between the first straight section (511) and the second straight section (512), the first straight section (511) is located on the side of the second straight section (512) close to the storage area (33), in the second use state, each of the vertical plate frames (52) is located in the first straight section (511), and all the vertical plate frames (52) are arranged straight along the extension direction of the first straight section (511), at this time, the stop mechanism (6) can be positioned in cooperation with the stop clamping groove (523) closest to the curved section (513). The inner side wall of the vertical frame beam (35) is provided with a pullback mechanism (7), the pullback mechanism (7) is connected with one of the vertical plate frames (52) and can normally force each of the vertical plate frames (52) to move along the moving guide rail (51) to the direction close to the second straight section (512) to realize the quick resetting of the blackboard plate (4) from the storage area (33).

6. The multimedia education teaching device according to claim 5, characterized in that: The pullback mechanism (7) comprises a winder (71) fixed to the inner side wall of the vertical frame beam (35), the winder (71) is located at the end of the second straight section (512) away from the curved section (513), the winder (71) is internally provided with a connecting rope (72) and a winding component, the winding component can normally force the connecting rope (72) to wind inward. The curved section (513) and the second straight section (512) are slidably provided with a guide plate frame (73), the connecting rope (72) passes through the guide plate frame (73) and is fixed to the guide plate frame (73), the free end of the connecting rope (72) is fixedly connected to the vertical plate frame (52), in the first use state, the connecting rope (72) is in the winding state.

7. The multimedia education device of claim 1, wherein: The stop mechanism (6) comprises a support pedestal (61) fixed to the inner bottom wall / inner top wall of the vertical frame beam (35), a rotating swing arm (62) rotatably installed on the support pedestal (61) and a torsional spring (63) arranged between the rotating swing arm (62) and the support pedestal (61), the torsional spring (63) is used to force the rotating swing arm (62) to normally abut against the side surface of the vertical plate frame (52), the free end of the rotating swing arm (62) is provided with a clamping portion (621), when the vertical plate frame (52) moves to the position opposite to the sliding track (34), the torsional spring (63) can force the clamping portion (621) to clampingly connect with the stop clamping groove (523) of the vertical plate frame (52) to realize the positioning of the movement of the vertical plate frame (52).

8. The multimedia education device of claim 1, wherein: The sliding track (34) has a plate surface portion (341) extending to the storage area (33), the plate surface portion (341) is provided with a vertical first through hole (342); The bottom of the frame assembly (3) is provided with a second through hole (37), the second through hole (37) is opposite to and communicates with the first through hole (342), and a dust collecting box (9) is matched and installed in the inner side of the second through hole (37), the dust collecting box (9) is detachably installed on the frame assembly (3) through a magnetic attraction mechanism.

9. The multimedia education device of claim 1, wherein: The blackboard plate (4) comprises a plate frame (41) and two lifting blackboards (42), the inner frame side of the plate frame (41) is provided with two vertical sliding grooves (411), the two vertical sliding grooves (411) are arranged side by side, and the two lifting blackboards (42) are slidingly installed in the two vertical sliding grooves (411) respectively; the two lifting blackboards (42) are connected through a pulley rope (43) to realize simultaneous movement of the two lifting blackboards (42); The plate frame (41) is fixedly provided with two positioning clamps (44) on the inner side, and the side surface of each lifting blackboard (42) is fixedly provided with a limiting wheel (422); when the lifting blackboard (42) moves downward to the limit position, the limiting wheel (422) can be positioned in cooperation with the positioning clamps (44) to realize positioning and retention of the two lifting blackboards (42).

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