Intelligent preschool education display device

Abstract

The invention discloses an intelligent display device for preschool education, and belongs to the technical field of intelligent display boards. An intelligent preschool education display device comprises a movable base and an intelligent display screen fixedly installed on the movable base, a cavity is formed in the movable base, the intelligent preschool education display device further comprises a screw rod rotationally connected into the cavity, the screw rod is in threaded connection with a threaded block, and the top of the threaded block is fixedly connected with a sponge wiping plate. A sliding hole corresponding to the threaded block is formed in the movable base, a liquid collecting barrel is arranged in the movable base in a sliding mode, and an extrusion part is arranged between the threaded rod and the liquid collecting barrel; according to the intelligent display device for preschool education, a motor is started to control a screw rod to rotate, in the process that a threaded block drives a sponge wiping plate to move, the threaded block is matched with a driven plate on the inner wall of a cam through a driving plate in an annular groove of the threaded block, and in the process that the sponge wiping plate slides to wipe an intelligent display screen, the intelligent display screen is wiped; the cleaning agent can be automatically obtained to promote cleaning of the intelligent display screen.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent display boards, and in particular to an intelligent display device for preschool education. Background Art

[0002] In preschool education, smart display boards are the most commonly used educational method. With their large screens and intelligent functions, they provide teachers with a convenient platform for displaying knowledge, interesting stories, works of art and other content to young children.

[0003] After searching, the Chinese patent publication number CN209343735U discloses an angle-adjustable display board for preschool education. Aiming at the problem that the existing display boards for preschool education have simple structures and functions and low practical performance, the following solution is proposed, which includes a telescopic board, two of which are symmetrically arranged, and the two telescopic boards are rotatably connected to the second display board on the sides close to each other, and the first display board is arranged on the sides close to each other of the two second display boards, the first display board is arranged in a hollow rectangular structure, and the two ends of the first display board are through-arranged.

[0004] Although the currently disclosed design of display boards for preschool education has improved the flexibility and practicality of the structure through retractable and rotatable display boards, it still has the following shortcomings: during long-term use, the surface of the display screen is prone to absorb dust particles in the air due to heat, forming screen pollution that is difficult to ignore. More importantly, when teachers operate the display screen for daily interactive teaching, natural residues such as fingerprints and oil stains on their fingers will inevitably be transferred to the screen surface. These stains not only affect the visual clarity, but also invisibly reduce the learning interest and concentration of young children. Summary of the invention

[0005] The purpose of the present invention is to solve the problem in the prior art that dust, fingerprints, oil stains, etc. are easily attached to the surface of the display screen, which affects the viewing effect of young children, and to propose an intelligent display device for preschool education.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A smart display device for preschool education comprises a mobile base and a smart display screen fixedly mounted on the mobile base, the mobile base having a cavity therein, and also comprising a screw rotatably connected to the cavity, the screw having a threaded block threadedly connected thereto, a sponge wiping plate fixedly connected to the top of the threaded block, the mobile base having a sliding hole corresponding to the threaded block, a liquid collecting barrel slidably arranged in the mobile base, an extrusion piece arranged between the screw and the liquid collecting barrel, and a liquid inlet pipe fixedly connected between the liquid collecting barrel and the sponge wiping plate.

[0008] Preferably, the top of the mobile base is fixedly connected to a mounting frame corresponding to the smart display screen, and mounting seats are fixedly connected to both sides of the bottom wall of the cavity of the mobile base. The screw is rotatably connected to the two mounting seats, and a motor is fixedly installed on one of the mounting seats, and the output end of the motor is fixedly connected to the screw.

[0009] Preferably, a guide rail and a slide plate are fixedly connected to the bottom wall of the cavity, the threaded block is slidably connected in the guide rail, a slide plate is slidably connected in the slide plate, an L-shaped strip plate is fixedly connected to the top of the slide plate, and the liquid collecting barrel is fixedly connected to the L-shaped strip plate.

[0010] Preferably, the extrusion member includes a piston plate slidably connected in the liquid collecting barrel, a push rod is fixedly connected to the piston plate, one end of the push rod extends to the outside of the liquid collecting barrel, one end of the push rod away from the piston plate is fixedly connected to a resistance block, a first spring is sleeved on the push rod, and two ends of the first spring respectively resist the liquid collecting barrel and the resistance block.

[0011] Preferably, an annular groove is provided on the screw, and a plurality of driving plates are fixedly connected to the surface of the annular groove of the screw. An annular limiting groove is provided on the mounting seat close to the liquid collecting barrel, and a plurality of support rods are rotatably connected in the annular limiting groove of the mounting seat. A cam is fixedly connected to one end of the plurality of support rods, and the cam is sleeved on the annular groove of the screw, and a plurality of follower plates are hingedly connected to the inner wall of the cam.

[0012] Preferably, a torsion spring is fixedly connected between one side of the plurality of driven plates and the inner wall of the cam, a plurality of L-shaped baffles for supporting and limiting the driven plates are fixedly connected around the inner wall of the cam, a cleaning agent box is fixedly installed on the back of the movable base, a liquid suction tube is fixedly connected between the cleaning agent box and the liquid collecting barrel, and a guide wheel and a guide ring for guiding the winding of the liquid inlet tube are fixedly connected to the top of the movable base.

[0013] Preferably, a push plate is slidably connected to the side of the screw away from the motor, and the bottom of the push plate is slidably connected to the guide rail. A guide rod is fixedly connected to the bottom of one side of the push plate, and one end of the guide rod extends to the outside of the guide rail. Circular holes corresponding to the guide rod are provided on the movable base and the mounting seat, and a second spring is sleeved on the guide rod, and the two ends of the second spring are respectively fixedly connected to the guide rail and the push plate, and one side of the push plate is fixedly connected to the L-shaped strip plate.

[0014] Preferably, a rotating rod is rotatably connected to the inner walls on both sides of the movable base, a gear is fixedly connected to the rotating rod, a first rack meshing with the gear is fixedly connected to one side of the push plate, a guide groove plate is fixedly connected to one side of the movable base close to the gear, a rectangular block is slidably connected in the guide groove plate, and a second rack meshing with the gear is fixedly connected to the rectangular block.

[0015] Preferably, one end of the second rack is fixedly connected to an extrusion plate corresponding to the sponge wiping plate, one side of the mounting frame is provided with a screen heat dissipation hole, a rectangular groove plate is fixedly connected to the mounting frame close to the screen heat dissipation hole, a cross bar is fixedly connected inside the rectangular groove plate, an L-shaped connecting plate is slidably connected to the cross bar, a third spring is sleeved on the cross bar, and both ends of the third spring are respectively against the inner walls of the L-shaped connecting plate and the rectangular groove plate.

[0016] Preferably, a cleaning brush is fixedly connected to the bottom of the L-shaped connecting plate, a pull rope is fixedly connected between the L-shaped connecting plate and the first rack, a guide plate is fixedly connected to the movable base close to the rectangular groove plate, a long plate is fixedly connected to the inner wall of the movable base, and guide holes corresponding to the pull rope are provided on the guide plate and the long plate.

[0017] Compared with the prior art, the present invention provides an intelligent preschool education display device, which has the following beneficial effects:

[0018] The intelligent display device for preschool education can be controlled by starting a motor to control the rotation of a screw rod, so that the threaded block drives the sponge wiping plate to move. The threaded block cooperates with the driven plate on the inner wall of the cam through the driving plate in the annular groove of the threaded block, so that the sponge wiping plate can automatically obtain cleaning agent to promote cleaning of the intelligent display screen during sliding to wipe the intelligent display screen, and when the threaded block hits the push plate, the supply of cleaning agent can be automatically stopped, and the push plate pushes the first rack to engage with the gear, so that the second rack drives the extrusion plate to squeeze the sponge wiping plate, and the cleaning agent adsorbed in the sponge wiping plate is automatically squeezed out, so that the sponge wiping plate will not affect the cleaning effect of the intelligent display screen when it is reset, and the time for the cleaning agent to be squeezed out can be automatically controlled. When the push plate is pushed by the threaded block, the pull rope can also be pulled to enable the cleaning brush to clean dust and other impurities on the heat dissipation holes of the screen, so as to achieve better heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of an intelligent preschool education display device proposed by the present invention;

[0020] Figure 2 This is a schematic diagram of the back structure of an intelligent preschool education display device proposed by the present invention;

[0021] Figure 3This is a schematic diagram of the structure inside a mobile base in an intelligent preschool education display device proposed by the present invention;

[0022] Figure 4 The present invention proposes Figure 3 The structural diagram of part A in the figure;

[0023] Figure 5 This is a front view structural schematic diagram of an intelligent preschool education display device proposed by the present invention;

[0024] Figure 6 The present invention proposes Figure 5 The structural diagram of part B;

[0025] Figure 7 This is a schematic diagram of the structure of the motor and the liquid collecting barrel in the intelligent preschool education display device proposed by the present invention;

[0026] Figure 8 The present invention proposes Figure 7 Schematic diagram of the structure of part C;

[0027] Fig. 9 This is a structural schematic diagram of an annular groove of a screw in an intelligent preschool education display device proposed by the present invention;

[0028] Fig.10 The present invention proposes Fig. 9 The structural diagram of the D part;

[0029] Fig.11 This is a right view structural schematic diagram of an intelligent preschool education display device proposed by the present invention;

[0030] Fig.12 This is a schematic diagram of the structure of a rear cross-section view of an intelligent preschool education display device proposed by the present invention;

[0031] Fig.13 The present invention proposes Fig.12 The structural diagram of the E part;

[0032] Fig.14 This is a structural schematic diagram of an L-shaped strip board in an intelligent preschool education display device proposed by the present invention;

[0033] Fig.15 The present invention proposes Fig.14 The structural diagram of the F part;

[0034] Fig.16 This is a left-side structural schematic diagram of an intelligent preschool education display device proposed by the present invention.

[0035] In the figure: 1. Mobile base; 2. Smart display screen; 3. Cavity; 4. Screw; 5. Threaded block; 6. Sponge wiping plate; 7. Slide hole; 8. Liquid collecting barrel; 9. Extrusion piece; 901. Piston plate; 902. Push rod; 903. Resistance block; 904. First spring; 905. Drive plate; 906. Support rod; 907. Cam; 908. Follower plate; 909. Torsion spring; 910. L-shaped baffle; 10. Liquid inlet pipe; 11. Mounting frame; 12. Mounting seat; 13. Motor; 14. Guide rail; 15. Slide plate; 16. Slide plate; 17. L-shaped strip plate; 18. Detergent box; 19. Suction tube; 20. Guide wheel; 21. Guide ring; 22. Push plate; 23. Guide rod; 24. Second spring; 25. Turn bar; 26. Gear; 27. First rack; 28. Guide groove plate; 29. ​​Rectangular block; 30. Second rack; 31. Extrusion plate; 32. Screen heat dissipation hole; 33. Rectangular groove plate; 34. Cross bar; 35. L-shaped connecting plate; 36. Third spring; 37. Cleaning brush; 38. Pull rope; 39. Guide plate; 40. Long board. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0037] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] Example 1: Reference Figure 1-Figure 16 A smart display device for preschool education includes a mobile base 1 and a smart display screen 2 fixedly installed on the mobile base 1. A cavity 3 is opened in the mobile base 1, and the mobile base 1 also includes a screw 4 rotatably connected to the cavity 3, a threaded block 5 is threadedly connected to the screw 4, and a sponge wiping plate 6 is fixedly connected to the top of the threaded block 5. A sliding hole 7 corresponding to the threaded block 5 is opened on the mobile base 1. A liquid collecting barrel 8 is slidably arranged in the mobile base 1, an extrusion piece 9 is arranged between the screw 4 and the liquid collecting barrel 8, and a liquid inlet pipe 10 is fixedly connected between the liquid collecting barrel 8 and the sponge wiping plate 6.

[0039] In the present invention, when cleaning the surface of the smart display screen 2, the threaded block 5 can be driven to slide by rotating the screw 4, and the threaded block 5 drives the sponge wiping plate 6 to slide on the smart display screen 2, so as to wipe and remove the dust and oil stains such as fingerprints adsorbed on the smart display screen 2, and while the screw 4 rotates, it will cooperate with the liquid collecting barrel 8 through the extrusion piece 9, so that the cleaning agent in the liquid collecting barrel 8 is transported from the liquid inlet pipe 10 to the sponge wiping plate 6. At this time, the cleaning agent is adsorbed on the sponge wiping plate 6, and the smart display screen 2 is cleaned, so that the cleaning effect is better and the cleaning is cleaner. Compared with the traditional manual wiping with a rag, the effect is better and the efficiency is higher.

[0040] Example 2: Reference Figure 1-Figure 12 , which is basically the same as the first embodiment, and further, a mounting frame 11 corresponding to the smart display screen 2 is fixedly connected to the top of the mobile base 1, mounting seats 12 are fixedly connected to both sides of the bottom wall of the cavity 3 of the mobile base 1, and the screw 4 is rotatably connected to the two mounting seats 12, and a motor 13 is fixedly installed on one of the mounting seats 12, and the output end of the motor 13 is fixedly connected to the screw 4.

[0041] In the present invention, the screw rod 4 can be driven to rotate by starting the motor 13, and the sliding hole 7 on the movable base 1 can play a role in stabilizing and guiding the sponge wiping plate 6 when it slides.

[0042] A guide rail 14 and a slide plate 15 are fixedly connected to the bottom wall of the cavity 3 , and the threaded block 5 is slidably connected in the guide rail 14 .

[0043] In the present invention, when the screw rod 4 rotates, the threaded block 5 can slide stably and horizontally under the action of the guide rail 14, so that the sponge wiping plate 6 and the smart display screen 2 can be stably attached and slidable.

[0044] The extrusion member 9 includes a piston plate 901 slidably connected in the liquid collecting barrel 8, a push rod 902 is fixedly connected to the piston plate 901, one end of the push rod 902 extends to the outside of the liquid collecting barrel 8, and an end of the push rod 902 away from the piston plate 901 is fixedly connected to a resistance block 903, a first spring 904 is sleeved on the push rod 902, and the two ends of the first spring 904 are respectively against the liquid collecting barrel 8 and the resistance block 903.

[0045] In the present invention, when the push rod 902 drives the piston plate 901 to slide toward the inside of the liquid collecting barrel 8, the first spring 904 will be compressed. When the push rod 902 is not resisted by external force, the first spring 904 can enable the push rod 902 to pull the piston plate 901 to automatically reset.

[0046] An annular groove is provided on the screw 4, and a plurality of driving plates 905 are fixedly connected to the surface of the annular groove of the screw 4. An annular limiting groove is provided on the mounting seat 12 near the liquid collecting barrel 8, and a plurality of support rods 906 are rotatably connected in the annular limiting groove of the mounting seat 12. A cam 907 is fixedly connected to one end of the plurality of support rods 906. The cam 907 is sleeved on the annular groove of the screw 4, and a plurality of driven plates 908 are hingedly connected to the inner wall of the cam 907.

[0047] Torsion springs 909 are fixedly connected between one side of multiple driven plates 908 and the inner wall of the cam 907, and multiple L-shaped baffles 910 for supporting and limiting the driven plates 908 are fixedly connected around the inner wall of the cam 907. A cleaning agent box 18 is fixedly installed on the back of the movable base 1, and a liquid suction tube 19 is fixedly connected between the cleaning agent box 18 and the liquid collecting barrel 8. A guide wheel 20 and a guide ring 21 for guiding the winding of the liquid inlet tube 10 are fixedly connected to the top of the movable base 1.

[0048] In the present invention, when the screw rod 4 rotates, it will drive multiple driving plates 905 around the surface to rotate simultaneously. These driving plates 905 can drive the driven plate 908 to rotate together with the support of the torsion spring 909 and the L-shaped baffle plate 910. When the screw rod 4 rotates and controls the sponge wiping plate 6 to slide from right to left, the driving plate 905 will rotate in the direction of the L-shaped baffle plate 910, thereby driving the driven plate 908 to rotate. At this time, multiple support rods 906 firmly support the cam 907, so that the cam 907 rotates with the driven plate 908. The protrusion of the cam 907 will conflict with the resistance block 903 during the rotation process. When the protrusion conflicts with the resistance block 903, the resistance block 903 will push the push rod 902 to slide. When the protrusion of the cam 907 leaves the resistance block 903, the push rod 902 will automatically pull the piston plate 901 to reset under the action of the first spring 904.

[0049] Therefore, in the process of the sponge wiping plate 6 sliding to wipe the smart display screen 2, the protrusion of the cam 907 will continuously contact and separate from the resistance block 903, thereby driving the liquid collection barrel 8 to repeatedly extract the detergent from the detergent box 18 through the suction tube 19, and squeeze the detergent onto the sponge wiping plate 6 through the liquid inlet pipe 10. In this way, while wiping the smart display screen 2, the detergent can further promote the cleaning effect.

[0050] It is worth noting that when the sponge wiping plate 6 moves, the liquid inlet pipe 10 will also move accordingly. The liquid inlet pipe 10 can move stably without getting tangled under the guidance of the guide wheel 20 and the guide ring 21.

[0051] In addition, it should be emphasized that the torsion force of the torsion spring 909 is smaller than the elastic force of the first spring 904 to ensure that the sponge wiping plate 6 can move smoothly and evenly. Check valves are installed inside the liquid inlet pipe 10 and the liquid suction pipe 19 to prevent the cleaning agent from flowing back.

[0052] Example 3: Reference Figure 1-Figure 7 , which is basically the same as the first embodiment. Furthermore, a guide rail 14 and a slide plate 15 are fixedly connected to the bottom wall of the cavity 3, a slide plate 16 is slidably connected inside the slide plate 15, an L-shaped strip plate 17 is fixedly connected to the top of the slide plate 16, and the liquid collecting barrel 8 is fixedly connected to the L-shaped strip plate 17.

[0053] A push plate 22 is slidably connected to the side of the screw rod 4 away from the motor 13, and the bottom of the push plate 22 is slidably connected to the guide rail 14. A guide rod 23 is fixedly connected to the bottom of one side of the push plate 22, and one end of the guide rod 23 extends to the outside of the guide rail 14. Circular holes corresponding to the guide rod 23 are opened on the movable base 1 and the mounting base 12. A second spring 24 is sleeved on the guide rod 23. The two ends of the second spring 24 are fixedly connected to the guide rail 14 and the push plate 22 respectively, and one side of the push plate 22 is fixedly connected to the L-shaped strip plate 17.

[0054] In the present invention, when the threaded block 5 slides to the position of the push plate 22, it pushes the push plate 22 to slide smoothly in the guide rail 14, and at the same time slides on the guide rod 23 to compress the second spring 24. At the same time, when the push plate 22 is pushed by the threaded block 5, it also pulls the L-shaped strip plate 17 to slide together. The L-shaped strip plate 17 slides smoothly in the slide plate 15 through the slide plate 16 at the bottom thereof, thereby driving the liquid collecting barrel 8 and the resistance block 903 connected thereto to slide together, so that the resistance block 903 and the cam 907 are misaligned. In this misaligned state, even if the cam 907 is still rotating, due to the misalignment between the resistance block 903 and the cam 907, the sponge wiping plate 6 can no longer be driven to continue absorbing the cleaning agent. The advantage of this design is that it can automatically stop the cleaning agent replenishment to the sponge wiping plate 6, which not only realizes the automatic control function, but also effectively avoids the cleaning agent from being continuously squeezed onto the sponge wiping plate 6, thereby preventing excessive waste of the cleaning agent. At the same time, this design also makes the cleaning work of the smart display screen 2 more convenient and efficient.

[0055] Example 4: Reference Figure 1-Figure 7, which is basically the same as the first embodiment, and further, a push plate 22 is slidably connected to the side of the screw rod 4 away from the motor 13, and the bottom of the push plate 22 is slidably connected to the guide rail 14, and a guide rod 23 is fixedly connected to the bottom of one side of the push plate 22, and one end of the guide rod 23 extends to the outside of the guide rail 14, and circular holes corresponding to the guide rod 23 are opened on the movable base 1 and the mounting base 12, and a second spring 24 is sleeved on the guide rod 23, and the two ends of the second spring 24 are respectively fixedly connected to the guide rail 14 and the push plate 22, and one side of the push plate 22 is fixedly connected to the L-shaped strip plate 17.

[0056] A rotating rod 25 is rotatably connected to the inner walls on both sides of the movable base 1, a gear 26 is fixedly connected to the rotating rod 25, a first rack 27 meshing with the gear 26 is fixedly connected to one side of the push plate 22, a guide groove plate 28 is fixedly connected to one side of the movable base 1 close to the gear 26, a rectangular block 29 is slidably connected in the guide groove plate 28, and a second rack 30 meshing with the gear 26 is fixedly connected to the rectangular block 29.

[0057] One end of the second rack 30 is fixedly connected to a pressing plate 31 corresponding to the sponge wiping plate 6 .

[0058] In the present invention, when the threaded block 5 pushes the push plate 22 to slide, the push plate 22 will also synchronously push the first rack 27 to mesh with the gear 26, thereby driving the gear 26 to rotate, and the rotating gear 26 is then meshed with the second rack 30, prompting the second rack 30 to slide toward the inner direction of the movable base 1. As the second rack 30 slides, the second rack 30 drives the extrusion plate 31 to move together, and squeezes the sponge wiping plate 6 that is about to slide to the edge of the smart display screen 2. When the sponge wiping plate 6 completely slides to the edge of the smart display screen 2, the extrusion plate 31 The squeezing force of the sponge wiping plate 6 reaches the maximum, thereby squeezing the cleaning agent in the sponge wiping plate 6 and causing it to fall. This design effectively prevents the motor 13 from controlling the screw 4 to rotate in the opposite direction, causing the sponge wiping plate 6 with the cleaning agent to slide in the opposite direction, which has an adverse effect on the wiping effect of the smart display screen 2.

[0059] When the motor 13 controls the screw 4 to rotate in the opposite direction and causes the sponge wiping plate 6 to slide in the opposite direction, the rotation of the screw 4 will drive the driving plate 905 to rotate in the direction where the torsion spring 909 is installed, and contact the driven plate 908. Since the torsion force of the torsion spring 909 is specially designed to be smaller than the elastic force of the first spring 904, the driven plate 908 will compress the torsion spring 909 and rotate during the process of the screw 4 rotating in the opposite direction to control the resetting of the sponge wiping plate 6, thereby disengaging from the driving plate 905, avoiding the rotation of the driving cam 907, and further preventing the cleaning agent from being squeezed out unnecessarily. Only when the sponge wiping plate 6 slides from the side of the smart display screen 2 close to the motor 13 to the side close to the second rack 30, the cleaning agent will be squeezed out to assist in wiping the smart display screen 2.

[0060] In addition, when the threaded block 5 pushes the push plate 22 to a certain position, the cleaning agent will automatically stop supplying to the sponge wiping plate 6, thereby realizing intelligent control.

[0061] Example 5: Reference Figure 3 and Figure 14-16 , which is basically the same as the first embodiment. Furthermore, a screen heat dissipation hole 32 is opened on one side of the mounting frame 11, and a rectangular slot plate 33 is fixedly connected to the mounting frame 11 near the screen heat dissipation hole 32. A cross bar 34 is fixedly connected inside the rectangular slot plate 33, and an L-shaped connecting plate 35 is slidably connected to the cross bar 34. A third spring 36 is sleeved on the cross bar 34, and both ends of the third spring 36 are respectively against the inner walls of the L-shaped connecting plate 35 and the rectangular slot plate 33.

[0062] A cleaning brush 37 is fixedly connected to the bottom of the L-shaped connecting plate 35, a pull rope 38 is fixedly connected between the L-shaped connecting plate 35 and the first rack 27, a guide plate 39 is fixedly connected to the movable base 1 near the rectangular groove plate 33, a long plate 40 is fixedly connected to the inner wall of the movable base 1, and guide holes corresponding to the pull rope 38 are provided on the guide plate 39 and the long plate 40.

[0063] In the present invention, when the smart display screen 2 is used for preschool education for a long time, its internal electronic components and the screen surface will generate heat. The traditional heat dissipation method mainly relies on the screen heat dissipation holes 32 for heat dissipation to prevent the internal electrical components from overheating and short circuiting. However, after the screen heat dissipation holes 32 are used for a long time, dust, fluff and other impurities are easily accumulated on the surface. If they are not cleaned in time, it will hinder the timely discharge of heat from the smart display screen 2 and the internal electrical components. To solve this problem, in the present invention, when the push plate 22 is pushed by the threaded block 5, the pull rope 38 is also pulled synchronously. Under the guidance of the guide plate 39 and the long plate 40, the pull rope 38 changes the direction of the pulling force and drives the L-shaped connecting plate 35 to slide stably along the cross bar 34 inside the rectangular groove plate 33. This sliding action enables the cleaning brush 37 to stably contact and slide with the screen heat dissipation holes 32, thereby effectively brushing away dust, fluff and other impurities on the heat dissipation holes.

[0064] When the push plate 22 slides to the end of its stroke, the cleaning brush 37 also happens to slide to the edge of the screen heat dissipation hole 32, completing the cleaning of the entire heat dissipation hole. Subsequently, when the motor 13 controls the screw 4 to rotate in the opposite direction and causes the threaded block 5 to slide in the opposite direction, the push plate 22 will automatically reset under the elastic force of the second spring 24. At the same time, when the pull rope 38 pulls the L-shaped connecting plate 35 to slide on the cross bar 34, it will compress the third spring 36. When the push plate 22 is reset, the cleaning brush 37 will reset along with the L-shaped connecting plate 35 under the elastic force of the third spring 36, thereby completing the entire cleaning process. This design ensures that the heat inside the smart display screen 2 can be discharged in time, effectively extending its service life.

[0065] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An intelligent preschool education display device, comprising: A mobile base (1) and a smart display screen (2) fixedly mounted on the mobile base (1), characterized in that a cavity (3) is provided in the mobile base (1), and further comprising: A screw rod (4) is rotatably connected to the cavity (3), a threaded block (5) is threadedly connected to the screw rod (4), a sponge wiping plate (6) is fixedly connected to the top of the threaded block (5), a sliding hole (7) corresponding to the threaded block (5) is opened on the movable base (1), a liquid collecting barrel (8) is slidably arranged in the movable base (1), an extrusion piece (9) is arranged between the screw rod (4) and the liquid collecting barrel (8), and a liquid inlet pipe (10) is fixedly connected between the liquid collecting barrel (8) and the sponge wiping plate (6).

2. The intelligent preschool education display device according to claim 1, characterized in that: The top of the mobile base (1) is fixedly connected to a mounting frame (11) corresponding to the smart display screen (2); both sides of the bottom wall of the cavity (3) of the mobile base (1) are fixedly connected to mounting seats (12); the screw rod (4) is rotatably connected to the two mounting seats (12); a motor (13) is fixedly mounted on one of the mounting seats (12); and the output end of the motor (13) is fixedly connected to the screw rod (4).

3. The intelligent preschool education display device according to claim 2, characterized in that: A guide rail (14) and a slide plate (15) are fixedly connected to the bottom wall of the cavity (3); the threaded block (5) is slidably connected in the guide rail (14); a slide plate (16) is slidably connected in the slide plate (15); an L-shaped strip plate (17) is fixedly connected to the top of the slide plate (16); and the liquid collecting barrel (8) is fixedly connected to the L-shaped strip plate (17).

4. The intelligent preschool education display device according to claim 1, characterized in that: The extrusion member (9) comprises a piston plate (901) slidably connected in the liquid collecting barrel (8), a push rod (902) is fixedly connected to the piston plate (901), one end of the push rod (902) extends to the outside of the liquid collecting barrel (8), one end of the push rod (902) away from the piston plate (901) is fixedly connected to a resistance block (903), a first spring (904) is sleeved on the push rod (902), and two ends of the first spring (904) are respectively against the liquid collecting barrel (8) and the resistance block (903).

5. The intelligent preschool education display device according to claim 2, characterized in that: The screw rod (4) is provided with an annular groove, and a plurality of driving plates (905) are fixedly connected to a circumferential surface of the annular groove of the screw rod (4). An annular limiting groove is provided on a mounting seat (12) close to the liquid collecting barrel (8), and a plurality of supporting rods (906) are rotatably connected in the annular limiting groove of the mounting seat (12). One end of the plurality of supporting rods (906) is fixedly connected to a cam (907), and the cam (907) is sleeved on the annular groove of the screw rod (4). A plurality of driven plates (908) are hingedly connected to a circumference of the inner wall of the cam (907).

6. The intelligent preschool education display device according to claim 5, characterized in that: Torsion springs (909) are fixedly connected between one side of the plurality of driven plates (908) and the inner wall of the cam (907); a plurality of L-shaped baffles (910) for supporting and limiting the driven plates (908) are fixedly connected around the inner wall of the cam (907); a cleaning agent box (18) is fixedly installed on the back of the movable base (1); a liquid suction pipe (19) is fixedly connected between the cleaning agent box (18) and the liquid collecting barrel (8); and a guide wheel (20) and a guide ring (21) for guiding the winding of the liquid inlet pipe (10) are fixedly connected to the top of the movable base (1).

7. The intelligent preschool education display device according to claim 3, characterized in that: A push plate (22) is slidably connected to the side of the screw rod (4) away from the motor (13), and the bottom of the push plate (22) is slidably connected to the guide rail (14). A guide rod (23) is fixedly connected to the bottom of one side of the push plate (22), and one end of the guide rod (23) extends to the outside of the guide rail (14). The movable base (1) and the mounting base (12) are both provided with round holes corresponding to the guide rod (23). A second spring (24) is sleeved on the guide rod (23), and the two ends of the second spring (24) are respectively fixedly connected to the guide rail (14) and the push plate (22), and one side of the push plate (22) is fixedly connected to the L-shaped strip plate (17).

8. The intelligent preschool education display device according to claim 7, characterized in that: The inner walls on both sides of the movable base (1) are rotatably connected with a rotating rod (25), the rotating rod (25) is fixedly connected with a gear (26), one side of the push plate (22) is fixedly connected with a first rack (27) meshing with the gear (26), and one side of the movable base (1) close to the gear (26) is fixedly connected with a guide groove plate (28), a rectangular block (29) is slidably connected in the guide groove plate (28), and a second rack (30) meshing with the gear (26) is fixedly connected to the rectangular block (29).

9. The intelligent preschool education display device according to claim 8, characterized in that: One end of the second rack (30) is fixedly connected to a squeezing plate (31) corresponding to the sponge wiping plate (6); one side of the mounting frame (11) is provided with a screen heat dissipation hole (32); a rectangular slot plate (33) is fixedly connected to the mounting frame (11) near the screen heat dissipation hole (32); a cross bar (34) is fixedly connected inside the rectangular slot plate (33); an L-shaped connecting plate (35) is slidably connected to the cross bar (34); a third spring (36) is sleeved on the cross bar (34); two ends of the third spring (36) are respectively against the inner walls of the L-shaped connecting plate (35) and the rectangular slot plate (33).

10. The intelligent preschool education display device according to claim 9, characterized in that: A cleaning brush (37) is fixedly connected to the bottom of the L-shaped connecting plate (35), a pull rope (38) is fixedly connected between the L-shaped connecting plate (35) and the first rack (27), a guide plate (39) is fixedly connected to the movable base (1) close to the rectangular groove plate (33), a long plate (40) is fixedly connected to the inner wall of the movable base (1), and guide holes corresponding to the pull rope (38) are provided on the guide plate (39) and the long plate (40).

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