Liftable rotary mobile teaching display device

Abstract

The application provides a liftable rotary moving teaching display device, and belongs to the technical field of teaching display devices. The device comprises a support, a supporting rod is longitudinally arranged on the support, a damping adjusting part one is arranged on the support, one end of the supporting rod is fixed with a frame, a transverse sliding mechanism is arranged on the rear side of the frame, and the transverse sliding mechanism comprises a sliding groove one, a sliding block, an extension arm and a fixing arm. The torsion spring, the angle limiting rod and other components in the automatic overturning assembly are matched, so that the writing board is horizontally arranged in front of the display screen in the storage state, and the writing board is stacked with the display screen. The transverse size of the device is reduced. Compared with the prior art, in which the writing board is fixedly arranged on the side of the display screen and the transverse size is too large, the transverse sliding and automatic overturning functions of the writing board are used, the space occupation is reduced, and the device can be more flexibly used in different teaching scenes.

Description

Technical Field

[0001] This invention belongs to the technical field of teaching demonstration devices, specifically a lifting, rotating and movable teaching demonstration device. Background Technology

[0002] Teaching demonstration devices are facilities used to present knowledge and transmit information. With the advancement of educational informatization, teaching demonstration devices are gradually developing from a single traditional writing medium to an intelligent direction that integrates multimedia technology. They integrate multiple functions such as digital display, writing annotation, content storage and network transmission. They can make abstract knowledge more intuitive and vivid, enrich the presentation of teaching content, and enhance the interactivity and interest of classroom teaching. They are widely used in various educational and teaching scenarios at all levels and in various conference and training venues.

[0003] However, existing teaching demonstration devices still have many shortcomings in practical use. First, most integrated display screens and writing tablets adopt a fixed layout, with the writing tablet usually fixed to the side of the display screen. This results in an excessively large overall horizontal size of the device, which not only occupies a lot of space but also hinders flexible movement between different teaching scenarios. Some sliding writing tablets remain horizontal even when fully unfolded, further exacerbating the space occupation problem and limiting their application in space-constrained environments. Second, existing devices generally lack effective protective measures for the display screen. When the display screen is idle for a long time, dust easily accumulates on the surface, requiring frequent cleaning. It is also susceptible to scratches or collisions, shortening the lifespan of the display screen. In addition, the operation of switching between the display screen and the writing tablet is cumbersome, requiring users to manually perform multiple actions such as sliding and flipping, which affects the quality and efficiency of classroom teaching.

[0004] Therefore, we propose a liftable, rotating, and mobile teaching and display device to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to solve the problems of existing devices such as large space occupation, easy dust accumulation and damage, and cumbersome operation, and to propose a lifting, rotating and mobile teaching and display device.

[0006] The objective of this invention can be achieved through the following technical solution: a support is included, a support rod is slidably arranged on the support along the longitudinal direction, a damping adjustment component is provided on the support, a frame is fixed to one end of the support rod, a display screen is fixed to one side of the frame, a writing board is also slidably arranged on the frame along the transverse direction, and an automatic flipping component is provided between the writing board and the rear side of the frame.

[0007] In a preferred embodiment of the present invention, the writing tablet has a support portion located on one side of the display screen.

[0008] In a preferred embodiment of the present invention, a slide rail is fixed to the rear side of the frame, a slider is slidably arranged in the slide rail, an extension arm is fixedly connected to the rear side of the slider, a fixed arm is rotatably connected to one end of the extension arm, and one end of the fixed arm is fixedly connected to the middle part of the support.

[0009] In a preferred embodiment of the present invention, a translation groove is provided at the top of the slide rail one, and a damping adjustment member two is slidably disposed in the translation groove. One end of the damping adjustment member two is threadedly connected to the slider, and the bottom end of the damping adjustment member two abuts against the top of the slide rail one.

[0010] In a preferred embodiment of the present invention, the automatic flipping assembly includes a through hole at one end of the extension arm, a connecting shaft fixed at the corresponding end of the fixed arm, the connecting shaft being coaxially sleeved in the through hole, a torsion spring being sleeved in the through hole and located outside the connecting shaft, one end of the torsion spring being fixed to the inner surface of the through hole, and the other end of the torsion spring being fixed to the outer surface of the connecting shaft, and an end cap being detachably connected to the rear side of the through hole.

[0011] In a preferred embodiment of the present invention, the automatic flipping assembly further includes an angle limiting rod disposed on the rear side of the frame. The angle limiting rod has a short arm and a long arm, which are connected by an arc. The short arm is perpendicular to the horizontal plane, and the long arm is parallel to the horizontal plane. When the fixed arm slides laterally with the writing board, the fixed arm fits against the long arm.

[0012] In a preferred embodiment of the present invention, the automatic flipping assembly further includes a second slide rail, which is fixed to the lower rear side of the frame. The second slide rail has an inner groove, and a spring is fixed to one end of the inner groove near the center of the frame. A slide plate is slidably disposed in the inner groove, and the slide plate is fixedly connected to the long arm. One end of the spring is fixed to the corresponding wall of the inner groove, and the other end of the spring is fixedly connected to the corresponding side of the slide plate. The spring is used to move the slide plate away from the center of the frame. A push plate is fixed to the rear side of the angle limiting rod, and a push plate is fixed to the rear side of the fixed arm.

[0013] In a preferred embodiment of the present invention, a flexible material is fixed to one side of the support portion, the support portion is made of iron material, and a magnet is provided at the top corner of the frame.

[0014] In a preferred embodiment of the present invention, the damping adjustment component is a screw, which is threadedly connected to the outside of the support, and one end of the damping adjustment component abuts against the outer surface of the support rod.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) By setting a horizontal sliding mechanism consisting of a slide rail, a slider, an extension arm and a fixed arm on the rear side of the frame, and cooperating with components such as torsion springs and angle limit rods in the automatic flipping assembly, the writing board is horizontally set in front of the display screen in the storage state and stacked with the display screen, which reduces the overall horizontal size of the device. Compared with the problem of the handwriting board being fixed on the side of the display screen in the prior art, which leads to excessive horizontal size, the present invention reduces the space occupation through the horizontal sliding and automatic flipping functions of the writing board, so that the device can more flexibly adapt to the mobile use needs between different teaching scenarios. (2) By horizontally blocking the front of the display screen when the writing board is stored, the writing board can provide physical protection for the display screen. Compared with the problem that the surface of the display screen is prone to dust accumulation and damage from external scratches when it is idle for a long time in the prior art, the present invention uses the writing board itself for protection, without the need for additional protective structure, which simplifies the overall structure of the device and reduces manufacturing costs. (3) Through the elastic drive of the torsion spring in the automatic flipping component, the angle limit guide control of the angle limit rod, and the cooperation of the springs in the push plate 1, push plate 2 and slide 2, the automatic control of the entire flipping process of the writing board from horizontal storage to vertical use is realized. When the user pushes the writing board to one side, it first slides out horizontally. After sliding to the preset position, the torsion spring automatically releases its elastic force to drive the writing board to flip to the vertical state. Compared with the problem that the switching between the display screen and the writing board in the prior art requires manual completion of multiple actions such as sliding and flipping, the present invention realizes the automatic switching of the writing board position and the automatic angle limit. The user only needs to push to complete the function switching, which improves the teaching quality and efficiency. Attached Figure Description

[0016] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a frontal three-dimensional structural diagram of the present invention in its stored state; Figure 2 This is a schematic diagram of the rear three-dimensional structure of the present invention in its stored state; Figure 3 This is a frontal three-dimensional structural diagram of the present invention in its unfolded state; Figure 4 This is a schematic diagram of the rear three-dimensional structure of the present invention in its unfolded state; Figure 5 This is a schematic diagram of the rear view of the structure of the present invention in its unfolded state; Figure 6 This is a three-dimensional structural diagram of the back of the invention in its unfolded state. Figure 7This is a three-dimensional structural diagram of the back of the invention in its unfolded state. Figure 8 This is a three-dimensional structural diagram of the rear portion of the present invention in its unfolded state; Figure 9 For the present invention Figure 8 Enlarged view of the structure at point A in the middle.

[0018] In the diagram: 1. Support; 2. Support rod; 3. Damping adjustment component one; 4. Frame; 5. Display screen; 6. Writing board; 7. Automatic flip assembly; 401. Slide one; 402. Slider; 403. Extension arm; 404. Fixed arm; 405. Translation groove; 406. Damping adjustment component two; 407. Magnet; 601. Support part; 602. Flexible material; 701. Through hole; 702. Connecting shaft; 703. Torsion spring; 704. End cap; 705. Angle limit rod; 706. Short arm; 707. Long arm; 708. Slide two; 709. Inner groove; 710. Spring; 711. Slide plate; 712. Push plate one; 713. Push plate two. Detailed Implementation

[0019] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figure 1 - Figure 9 As shown, a liftable, rotating and movable teaching display device includes a support 1, a support rod 2 that slides longitudinally on the support 1, a damping adjustment component 3 that is provided on the support 1, a frame 4 that is fixed to one end of the support rod 2, a display screen 5 that is fixed to one side of the frame 4, a writing board 6 that slides laterally on the frame 4, and an automatic flipping component 7 that is provided between the writing board 6 and the rear side of the frame 4. In this embodiment, the support 1 can adopt a structure with universal wheels at the bottom to facilitate flexible movement in indoor space. The support 1 is provided with a longitudinal guide groove, and the support rod 2 can slide up and down along the longitudinal guide groove, thereby realizing the adjustment of the overall height of the frame 4 and the display screen 5 and writing board 6 on the frame 4 to adapt to the needs of users of different heights or different demonstration scenarios. The damping adjustment component 3 can be a threaded rod. When the user rotates the damping adjustment component 3 so that one end is pressed against the outer surface of the support rod 2, the sliding friction between the support rod 2 and the support 1 can be increased, thereby damping and positioning the sliding stroke of the support rod 2, so that the display screen 5 and the writing board 6 can stay at any height. The display screen 5 is fixed to one side of the frame 4 and can be an LCD screen or an electronic whiteboard screen for displaying multimedia teaching content and digital information. The writing tablet 6 is connected to the rear of the frame 4 through the automatic flip component 7. When not in use, the writing tablet 6 can be stored in front of the display screen 5 to protect the screen surface of the display screen 5 from dust. When it is necessary to use the writing tablet 6 for handwritten annotations, the writing tablet 6 can be automatically flipped to the vertical use state by the drive of the automatic flip component 7. With the above-mentioned structure in place, the teaching and display device can be adjusted in height, stored and rotated, and moved flexibly, effectively solving the problems of large space occupation, cumbersome operation, and lack of protective measures in the existing technology.

[0021] The writing tablet 6 has a support part 601, which is located on one side of the display screen 5; In this embodiment, the support part 601 can adopt a rectangular plate structure. The support part 601 is fixedly set on one side of the frame 4 and located on the side of the display screen 5. The surface of the support part 601 can be coated with a handwriting coating or attached with a special writing panel to facilitate writing with markers or whiteboard markers and to facilitate wiping and cleaning. The support part 601 and the display screen 5 can maintain an appropriate distance so that the content displayed on the display screen 5 will not be obstructed when writing on the writing tablet 6. At the same time, it also allows the writing tablet 6 to have sufficient space for movement during the flipping process. The size of the support part 601 can be designed according to the actual teaching needs, and its length and width dimensions can be matched with the size of the display screen 5.

[0022] A slide rail 401 is fixed to the rear side of the frame 4. A slider 402 is slidably arranged in the slide rail 401. An extension arm 403 is fixedly connected to the rear side of the slider 402. A fixed arm 404 is rotatably connected to one end of the extension arm 403. One end of the fixed arm 404 is fixedly connected to the middle part of the support 601. In this embodiment, slide rail 401 is fixedly disposed on the rear surface of frame 4. Slide rail 401 can adopt a long strip profile structure, and a guide chamber for slider 402 to slide is formed inside. The length direction of slide rail 401 is consistent with the transverse direction of frame 4, that is, consistent with the sliding direction of writing board 6. Slider 402 is disposed in the guide chamber of slide rail 401. Slider 402 can slide laterally along the length direction of slide rail 401. Slider 402 and slide rail 401 can cooperate through guide elements such as rollers, bearings or sliding bushings to reduce sliding friction resistance. An extension arm 403 is fixedly connected to the rear side of the slider 402. The extension arm 403 can be a metal rod structure. One end of the extension arm 403 is fixedly connected to the slider 402, and the other end is rotatably connected to the fixed arm 404. The fixed arm 404 can rotate at the end of the extension arm 403. One end of the fixed arm 404 is fixedly connected to the middle of the support part 601. When the fixed arm 404 rotates, it can drive the writing board 6 to rotate at an angle. When the slider 402 slides along the slide rail 401, it can drive the extension arm 403, the fixed arm 404 and the writing board 6 to move laterally as a whole. When the slider 402 slides to the preset position, the fixed arm 404 rotates, thereby driving the writing board 6 to automatically flip to the vertical state.

[0023] The top of slide rail 401 is provided with a translation groove 405, and a damping adjustment component 406 is slidably arranged in the translation groove 405. One end of the damping adjustment component 406 is threadedly connected to the slider 402, and the bottom end of the damping adjustment component 406 abuts against the top of slide rail 401. In this embodiment, the translation groove 405 is formed on the top surface of the slide rail 401, and the length direction of the translation groove 405 may be consistent with or partially overlap with the length direction of the slide rail 401. The second damping adjustment component 406 is slidably disposed within the translation groove 405. The second damping adjustment component 406 can be a screw, one end of which is threadedly connected to the slider 402. When the second damping adjustment component 406 is rotated, its extension length within the translation groove 405 can be adjusted. During sliding, the bottom end of the second damping adjustment component 406 can abut against the top surface of the first slide rail 401. By adjusting the extension length of the second damping adjustment component 406, the pressure distribution between the slider 402 and the first slide rail 401 can be changed, thereby adjusting the damping force of the slider 402 when sliding within the first slide rail 401. Specifically, when the bottom end of the second damping adjustment component 406 is more... When the slider 402 deeply contacts the top of slide rail 401, the friction between the slider 402 and slide rail 401 increases, and the sliding damping increases. When the bottom part of the damping adjustment component 406 exits the contact state, the friction between the slider 402 and slide rail 401 decreases. By setting the damping adjustment component 406, the user can adjust the damping feel when the writing board 6 slides horizontally according to personal habits or usage scenarios to provide a comfortable operating feel. The combined use of the damping adjustment component 406 and the damping adjustment component 3 can achieve independent adjustment of the horizontal sliding damping of the writing board 6 and the vertical sliding damping of the support rod 2, enhancing the controllability of the entire device.

[0024] The automatic flipping assembly 7 includes a through hole 701 opened at one end of the extension arm 403, a connecting shaft 702 fixed at the corresponding end of the fixed arm 404, the connecting shaft 702 being coaxially sleeved in the through hole 701, a torsion spring 703 being sleeved in the through hole 701 and located outside the connecting shaft 702, one end of the torsion spring 703 being fixed to the inner surface of the through hole 701, and the other end of the torsion spring 703 being fixed to the outer surface of the connecting shaft 702, and an end cap 704 being detachably connected to the rear side of the through hole 701; In this embodiment, a through hole 701 is formed at one end of the extension arm 403. The inner diameter and depth of the through hole 701 can be adjusted according to the size of the end of the fixed arm 404 and the specifications of the torsion spring 703. The connecting shaft 702 is fixedly set at the corresponding end of the fixed arm 404. The outer diameter of the connecting shaft 702 is slightly smaller than the inner diameter of the through hole 701 so that it can be coaxially sleeved in the through hole 701. A bearing or sliding bushing may be provided between the connecting shaft 702 and the through hole 701 to ensure that the connecting shaft 702 can rotate within the through hole 701. A torsion spring 703 is sleeved on the outside of the connecting shaft 702 and located in the inner cavity of the through hole 701. One end of the torsion spring 703 is fixed to the inner surface of the through hole 701, and the other end is fixed to the outer surface of the connecting shaft 702. When the connecting shaft 702 rotates within the through hole 701, the torsion spring 703 can undergo torsional elastic deformation, thereby accumulating elastic potential energy. The direction of the elastic force of the torsion spring 703 is such that the fixed arm 404 tends to flip vertically. When the writing board 6 flips from the vertical state to the horizontal state, the torsion spring 703 is... Tighten to accumulate elastic force. When the writing board 6 flips from the horizontal to the vertical position, the torsion spring 703 releases the elastic force, driving the writing board 6 to flip automatically. The end cover 704 is detachably connected to the rear port of the through hole 701. The end cover 704 can be connected by a thread or a snap-fit. Its function is to seal the rear port of the through hole 701 to prevent dust and debris from entering the through hole 701 and affecting the normal operation of the torsion spring 703 and the connecting shaft 702. It also facilitates the inspection and replacement of the torsion spring 703. Through the cooperation of through hole 701, connecting shaft 702, torsion spring 703 and end cap 704, the writing tablet 6 can automatically trigger a flipping action when it slides horizontally to a specific position, realizing the automatic conversion of the writing tablet 6 from storage state to use state.

[0025] The automatic flipping assembly 7 also includes an angle limiting rod 705, which is located on the rear side of the frame 4. The angle limiting rod 705 has a short arm 706 and a long arm 707, which are connected by an arc. The short arm 706 is perpendicular to the horizontal plane, and the long arm 707 is parallel to the horizontal plane. When the fixed arm 404 slides laterally with the writing board 6, the fixed arm 404 fits against the long arm 707. In this embodiment, the angle limiting rod 705 is L-shaped and consists of a short arm 706 and a long arm 707. The short arm 706 and the long arm 707 are smoothly connected by an arc. The extension direction of the short arm 706 is perpendicular to the horizontal plane, meaning that when the writing board 6 is flipped to the vertical position, the short arm 706 can be basically flush with or slightly protrude from the rear side of the frame 4. The extension direction of the long arm 707 is parallel to the horizontal plane, meaning that when the writing board 6 is in the retracted state, the long arm 707 can be in a horizontal position and fit against the rear surface of the frame 4. When the fixing arm 404 slides laterally with the writing board 6... When the fixed arm 404 slides against the top surface of the long arm 707, the long arm 707 guides and supports the sliding of the fixed arm 404, limiting the fixed arm 404 to maintain a horizontal posture during the sliding process. When the writing board 6 slides to the preset position and triggers the flipping action, the contact relationship between the long arm 707 and the fixed arm 404 is released, and the short arm 706 begins to cooperate with the rear side of the frame 4 to limit the angle during the flipping process. Specifically, when the writing board 6 flips to the vertical state, the short arm 706 limits the flipping angle of the writing board 6 to no longer increase, thus realizing the angle limiting function. The short arm 706 and the long arm 707 are connected by an arc, which allows the angle limiting rod 705 to smoothly transition between different postures and avoid stress concentration. The arc connection can be treated with a rounded corner, and the radius of the rounded corner can be designed according to the cross-sectional dimensions of the short arm 706 and the long arm 707 to obtain good mechanical properties.

[0026] The automatic flipping assembly 7 also includes a second slide rail 708, which is fixed to the lower rear side of the frame 4. The second slide rail 708 has an inner groove 709. A spring 710 is fixed to one end of the inner groove 709 near the center of the frame 4. A slide plate 711 is slidably arranged in the inner groove 709. The slide plate 711 is fixedly connected to the long arm 707. One end of the spring 710 is fixed to the corresponding wall of the inner groove 709, and the other end of the spring 710 is fixedly connected to the corresponding side of the slide plate 711. The spring 710 is used to move the slide plate 711 away from the center of the frame 4. A push plate 712 is fixed to the rear side of the angle limiting rod 705, and a push plate 713 is fixed to the rear side of the fixed arm 404. In this embodiment, slide rail 708 is fixedly disposed on the lower rear surface of frame 4. Slide rail 708 can adopt a long strip-shaped groove structure, with an inner groove 709 formed inside. The inner groove 709 extends in the transverse direction of frame 4. Spring 710 is fixed to the end wall of inner groove 709 near the center of frame 4. Spring 710 can be a compression spring or a leaf spring, and its elastic force direction points away from the center of frame 4. Slide plate 711 is slidably disposed in inner groove 709. Slide plate 711 is fixedly connected to long arm 707. When long arm 707 moves, it can drive slide plate 711 to slide in inner groove 709. The function of spring 710 is to provide elastic force to slide plate 711, so that slide plate 711 has a tendency to move away from the center of frame 4. Then, slide plate 711 drives long arm 707 and angle limiting rod 705 to move in this direction. Plate 1 712 is fixedly mounted on the rear surface of angle limiting rod 705, and push plate 2 713 is fixedly mounted on the rear surface of fixed arm 404. During the storage of writing board 6, when fixed arm 404 moves towards the center of frame 4, push plate 2 713 can gradually approach and abut against push plate 1 712, thereby pushing push plate 1 712 and angle limiting rod 705 towards the center of frame 4, while compressing spring 710 and accumulating elastic force. During the unfolding of writing board 6, when fixed arm 404 moves away from the center of frame 4, the abutment relationship between push plate 2 713 and push plate 1 712 is released, spring 710 releases elastic force, and pushes slide plate 711, long arm 707 and angle limiting rod 705 away from the center of frame 4, thereby achieving position control of angle limiting rod 705 through the cooperation of push plate 1 712 and push plate 2 713. The cooperation of push plate 1 712 and push plate 2 713 can also ensure that in the storage state, the angle limiting rod 705 is completely retracted to the rear side of the frame 4, so as to avoid the angle limiting rod 705 protruding from the outside of the device, affecting the aesthetics or causing safety hazards.

[0027] A flexible material 602 is fixed to one side of the support part 601. The support part 601 is made of iron material. A magnet 407 is provided at the top corner of the frame 4. In this embodiment, a flexible material 602 is fixed on one side surface of the support 601. The flexible material 602 can be made of flexible rubber, silicone, soft PVC or leather, etc. Its main function is to buffer and protect the contact part between the writing board 6 and the frame 4 when the writing board 6 is flipped to the vertical use state, so as to avoid structural damage or noise caused by hard collision. The thickness of the flexible material 602 can be designed according to the buffering requirements, generally between 1mm and 5mm. The support part 601 is made of iron material (including pure iron, carbon steel or stainless steel, etc.). The iron material is magnetic and can be used with magnet 407. Magnet 407 is set at the top corner of frame 4. Magnet 407 can be permanent ferrite magnet or neodymium iron boron magnet, etc. Its magnetic force can attract the iron material support part 601. When the writing board 6 is flipped to the vertical position, the support part 601 is close to the top corner of frame 4. At this time, the magnet 407 and the support part 601 generate a magnetic attraction, so that the writing board 6 is stably kept in the vertical use position and is not easy to accidentally flip due to vibration or external interference. The magnet 407 is positioned at the top corner of the frame 4, which allows the magnetic attraction direction to be basically perpendicular to the flipping plane of the writing board 6, thereby achieving a stable limiting effect. The magnetic force of magnet 407 can be selected according to the weight of writing board 6 and the required adsorption stability, so that the adsorption force is sufficient to resist the flipping tendency caused by the weight of writing board 6, while not being too large to affect the flipping operation of writing board 6 from vertical to horizontal state. The combined use of flexible material 602 and magnet 407 allows the writing board 6 to be stably positioned by magnetic attraction when used vertically, while also being buffered and protected by flexible material 602, thus combining functionality and safety.

[0028] The damping adjustment component 3 is a screw rod, which is threaded to the outside of the support 1, and one end of the damping adjustment component 3 abuts against the outer surface of the support rod 2. In this embodiment, the damping adjustment component 3 specifically adopts a screw structure. The outer surface of the screw is provided with an external thread, and the outer side of the support 1 is provided with an internal threaded hole or threaded sleeve that mates with the external thread. The damping adjustment component 3 is fixed to the support 1 by a threaded connection. The damping adjustment component 3 is arranged in a direction perpendicular to the horizontal plane, with one end located on the outer side of the support 1 and the other end extending inward and abutting against the outer surface of the support rod 2. When the damping adjustment component 3 is rotated, it can be adjusted forward and backward along its axial direction. When the damping adjustment component 3 moves towards the support rod 2... When screwed in, one end of the damping adjustment component 3 is inserted deeper into the outer surface of the support rod 2, increasing the normal pressure between the support rod 2 and the support 1, thereby increasing the frictional resistance between the two and enhancing the damping force when the support rod 2 slides longitudinally. When the damping adjustment component 3 is screwed out in a direction away from the support rod 2, the contact pressure between one end of the damping adjustment component 3 and the support rod 2 decreases, the frictional resistance decreases, and the damping force decreases. By rotating the damping adjustment component 3, the user can adjust the sliding damping of the support rod 2 according to actual needs, so that the support rod 2 can stay stably at any height position and will not slide down automatically due to its own weight.

[0029] When using this invention, first place the support 1 in the desired position, and move the entire device to the appropriate position using the casters. When it is necessary to adjust the height of the display screen 5 and the writing board 6, rotate the damping adjustment component 3 to appropriately reduce the contact pressure between one end of it and the support rod 2, then slide the support rod 2 up and down to the desired height position, and then rotate the damping adjustment component 3 in the opposite direction to make it press against the support rod 2 again, thereby locking the height position. In its stored state, the writing pad 6 remains horizontal in front of the display screen 5, providing a protective shield against dust accumulation. When multimedia presentations are needed on the display screen 5, the writing pad 6 is pushed to one side. The writing pad 6 first moves laterally, with the slider 402 sliding within the slide rail 401 to provide lateral guidance. The fixed arm 404 slides horizontally against the top surface of the long arm 707, and the push plate 713 moves away from the center of the frame 4 along with the fixed arm 404. At this time, the contact between the push plate 2 713 and the push plate 1 712 is released, and the spring 710 pushes the slide plate 711, the long arm 707 and the angle limiting rod 705 to move away from the center of the frame 4. One end of the short arm 706 gradually extends out of the outside of the frame 4. As the writing board 6 moves further laterally, the slider 402 slides to the preset position, and the contact between the long arm 707 of the angle limiting rod 705 and the fixed arm 404 is released. The fixed arm 404 can start to flip under the elastic force of the torsion spring 703. When the writing board 6 is flipped to the vertical position, the magnet 407 and the support part 601 are magnetically attracted to each other, so that the writing board 6 is stably kept in the vertical use position. At the same time, the short arm 706 and the fixed arm 404 are attached to each other to prevent the writing board 6 from continuing to flip. When the writing tablet 6 needs to be stored, push the writing tablet 6 towards the center of the frame 4. The magnetic attraction is released first, and the fixed arm 404 begins to flip under the guidance of the arc, causing the writing tablet 6 to flip from the vertical state to the horizontal state. At the same time, the push plate 2 713 gradually approaches the push plate 1 712 and finally abuts, and continues to push the writing tablet 6. The fixed arm 404 and the slider 402 move laterally towards the center of the frame 4. The push plate 2 713 pushes the push plate 1 712 to compress the spring 710 until the writing tablet 6 is completely stored in front of the display screen 5. At this time, the abutment of the push plate 1 712 and the push plate 2 713 ensures that the angle limit rod 705 is completely retracted to the rear side of the frame 4.

[0030] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A liftable, rotatable, and mobile teaching and display device, comprising a support (1), characterized in that, A support rod (2) is slidably mounted on the support (1) along the longitudinal direction. A damping adjustment component (3) is mounted on the support (1). A frame (4) is fixed to one end of the support rod (2). A display screen (5) is fixed to one side of the frame (4). A writing board (6) is also slidably mounted on the frame (4) along the transverse direction. An automatic flipping component (7) is provided between the writing board (6) and the rear side of the frame (4).

2. The height-adjustable, rotating, and mobile teaching and display device according to claim 1, characterized in that, The writing tablet (6) has a support (601) located on one side of the display screen (5).

3. The height-adjustable, rotating, and mobile teaching and display device according to claim 2, characterized in that, The frame (4) is fixed with a slide rail (401) at the rear. A slider (402) is slidably arranged in the slide rail (401) along the transverse direction. An extension arm (403) is fixedly connected to the rear side of the slider (402). A fixed arm (404) is rotatably connected to one end of the extension arm (403). One end of the fixed arm (404) is fixedly connected to the middle part of the support (601).

4. The height-adjustable, rotating, and mobile teaching and display device according to claim 3, characterized in that, The top of the slide rail (401) is provided with a translation groove (405), and a damping adjustment component (406) is slidably arranged in the translation groove (405). One end of the damping adjustment component (406) is threadedly connected to the slider (402), and the bottom end of the damping adjustment component (406) abuts against the top of the slide rail (401).

5. The height-adjustable, rotating, and movable teaching and display device according to claim 3, characterized in that, The automatic flipping assembly (7) includes a through hole (701) at one end of the extension arm (403), a connecting shaft (702) is fixed at the corresponding end of the fixed arm (404), the connecting shaft (702) is coaxially sleeved in the through hole (701), a torsion spring (703) is sleeved in the through hole (701) and located outside the connecting shaft (702), one end of the torsion spring (703) is fixed to the inner surface of the through hole (701), and one end of the torsion spring (703) is fixed to the outer surface of the connecting shaft (702), and an end cap (704) is detachably connected to the rear side of the through hole (701).

6. The height-adjustable, rotating, and movable teaching and display device according to claim 3, characterized in that, The automatic flipping assembly (7) also includes an angle limiting rod (705), which is located on the rear side of the frame (4). The angle limiting rod (705) has a short arm (706) and a long arm (707), which are connected by an arc. The short arm (706) is perpendicular to the horizontal plane, and the long arm (707) is parallel to the horizontal plane. When the fixed arm (404) slides laterally with the writing board (6), the fixed arm (404) fits against the long arm (707).

7. The height-adjustable, rotating, and movable teaching and display device according to claim 6, characterized in that, The automatic flipping assembly (7) also includes a second slide rail (708), which is fixed to the lower rear side of the frame (4). The second slide rail (708) has an inner groove (709). A spring (710) is fixed to one end of the inner groove (709) near the center of the frame (4). A slide plate (711) is slidably arranged in the inner groove (709). The slide plate (711) is fixedly connected to the long arm (707). One end of the spring (710) is fixed to the corresponding wall of the inner groove (709). The other end of the spring (710) is fixedly connected to the corresponding side of the slide plate (711). The spring (710) is used to move the slide plate (711) away from the center of the frame (4). A push plate (712) is fixed to the rear side of the angle limiting rod (705), and a push plate (713) is fixed to the rear side of the fixed arm (404).

8. The height-adjustable, rotating, and mobile teaching and display device according to claim 2, characterized in that, A flexible material (602) is fixed to one side of the support (601), the support (601) is made of iron material, and a magnet (407) is provided at the top corner of the frame (4).

9. A height-adjustable, rotating, and mobile teaching and display device according to claim 1, characterized in that, The damping adjustment component (3) is a screw, which is threaded to the outside of the support (1), and one end of the damping adjustment component (3) abuts against the outer surface of the support rod (2).

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