Multifunctional teaching display device with dust removal function

Abstract

The invention relates to the technical field of teaching display, and discloses a multifunctional teaching display device with a dust removal function, which comprises a left base, a right base, vertical plates fixed at the tops of the bases, a fixed plate fixed between the two vertical plates, and a blackboard body rotationally connected between the two vertical plates, the first gear is rotationally connected to the interior of the vertical plate, first rack plates are engaged to the two sides of the surface of the first gear, limiting plates are fixedly connected to the other ends of the first rack plates, and the two ends of the upper limiting plate and the two ends of the lower limiting plate are movably connected with the inner side of the vertical plate; the force application structure is arranged at the bottom of the lower limiting plate and is used for driving the limiting plate to move; according to the blackboard eraser, not only can the written handwriting be erased, but also the generated dust can be covered during erasing, so that the dust can be prevented from freely drifting away, and meanwhile, the blackboard eraser can be knocked after multiple times of erasing, so that subsequent better erasing is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of teaching display, in particular to a multifunctional display device for teaching with a dust removal function. Background Art

[0002] Mathematics teaching is an indispensable part of the education system, which focuses on imparting mathematical knowledge, skills and methods to students. In this process, teachers guide students to master the basic concepts, principles and calculation skills of mathematics through systematic curriculum design, vivid classroom explanations, rich examples and practical applications. Mathematics teaching not only cultivates students' logical thinking ability, spatial imagination and problem-solving ability, but also focuses on stimulating students' interest in mathematics and innovative thinking. It emphasizes the combination of theory and practice, encourages students to deepen their understanding and application of mathematics in solving practical problems, and lays a solid foundation for students' future academic research and career development.

[0003] In the process of math tutoring, in order to facilitate the teacher's teaching, a display device will be placed in the classroom to facilitate the teacher to explain the questions and write the algorithm of the question being explained on the surface. The current display device is often composed of a rotatable blackboard. After the blackboard surface is full, the teacher will turn the back of the blackboard over and use it again. If it is full again, it is necessary to wipe the written content with a blackboard eraser. During wiping, the powder is easy to float in the air, which not only affects the surrounding environment, but also causes harm to the user's body if inhaled for a long time. Summary of the invention

[0004] The purpose of the present invention is to provide a multifunctional teaching display device with a dust removal function to solve the problems existing in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a multifunctional teaching display device with dust removal function, comprising two left and right bases, a vertical plate fixed on the top of the base, a fixed plate fixed between the two vertical plates, and a blackboard body rotatably connected between the two vertical plates, and also comprising:

[0006] A gear 1 is rotatably connected to the inside of the vertical plate, and rack plates 1 are meshed on both sides of the surface of the gear 1. The other end of the rack plate 1 is fixedly connected to a limit plate, and the two ends of the upper and lower limit plates are movably connected to the inner side of the vertical plate;

[0007] A force-applying structure disposed at the bottom of the limiting plate and used to drive the limiting plate to move;

[0008] A storage box is fixed on the back of the vertical board, a screw is rotatably connected between the storage box and the vertical board, and a movable block is threadedly connected to the surface of the screw, a connecting rod is fixedly connected to one side of the movable block, a dust cover is fixed to the bottom of the connecting rod, and a blackboard eraser is fixed below the dust cover, and a dust collection box is fixed to the bottom of the blackboard eraser;

[0009] A driving structure disposed at the bottom of the storage box and used to drive the screw to rotate;

[0010] A knocking plate is rotatably connected to the inside of the storage box, and a reciprocating structure for driving the knocking plate to deflect is arranged on the surface of the left vertical plate, and a dust suction structure for adsorbing dust is arranged inside the storage box.

[0011] Preferably, the force-applying structure includes a movable plate fixed to the bottom of the limiting plate below, a movable rod fixed to the top of the fixed plate, and a spring sleeved on the surface of the movable rod, and the surface of the movable rod is movably connected to the inside of the back of the movable plate.

[0012] Preferably, the driving structure includes a motor fixed to the back of the left vertical plate, a driving wheel and a driven wheel respectively fixed to the bottom ends of two screw rods, the output shaft of the motor is fixed to one side of the driving wheel, and the driving wheel is connected to the driven wheel through a belt.

[0013] Preferably, the reciprocating structure includes rack plate two, gear plate two, connecting plate, fixed rod and spring two, gear plate two is fixed to the rotating shaft surface at the left end of the knocking plate, one end of the fixed rod is fixed to the surface of the left vertical plate, the interior of the connecting plate is movably connected to the surface of the fixed rod, the left end of the connecting plate is fixed to the right side of rack plate two, the top of rack plate two is meshed with the bottom of gear plate two, the spring two is sleeved on the surface of the fixed rod, and the two ends of the spring two are respectively fixed to the back side of the connecting plate and the surface of the vertical plate.

[0014] Preferably, the dust suction structure includes a dust suction box fixed on the back of the storage box, a fan connected to one side of the dust suction box, two dust suction pipes connected to the bottom of the dust suction box, and a dust suction head connected to the other end of the dust suction pipe, and the dust suction head is arranged on both sides of the surface of the storage box.

[0015] Preferably, a sliding block is fixed to a side of the rack plate 1 away from the gear 1, and a surface of the sliding block is slidably connected to an inner wall of the vertical plate.

[0016] Preferably, a limiting groove is provided on the back side of the vertical plate, and the back side of the limiting groove is slidably connected to a limiting block, and one end of the limiting block is fixed to one side of the movable block.

[0017] Preferably, both sides of the upper limiting plate surface are fixedly connected with a clamping plate, and the clamping plate is located on the top of the blackboard body surface.

[0018] Preferably, a pedal is fixedly connected to the bottom end of the movable plate.

[0019] Preferably, rollers are provided on both the front and rear sides of the bottom of the base.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. When the surface of the blackboard body is wiped, the surface of the screw rod is connected with the thread inside the movable block, which can drive the connecting rod, the dust cover, the blackboard eraser and the dust collecting box to move together, so that the dust collecting box can wipe the back of the blackboard body, and at the same time, the dust generated during wiping can be shielded to prevent it from floating randomly;

[0022] 2. After wiping is completed, the dust cover, the blackboard eraser and the dust collection box will enter the interior of the storage box. At this time, the reciprocating force of the reciprocating structure can drive the knocking plate to deflect backward, so that the knocking plate can reciprocately beat the surface of the blackboard eraser, thereby facilitating the dust on the surface of the blackboard eraser to be beaten out, so as to improve the effect of subsequent wiping;

[0023] 3. In the process of knocking the blackboard eraser, the dust collecting structure can be set to remove the dust generated during the knocking and the dust falling inside the dust collecting box, thereby reducing the generation of dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0025] Figure 2 It is a rear-view stereoscopic structural schematic diagram of the present invention;

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure when viewed from above in the present invention;

[0027] Figure 4 It is a schematic diagram of a local three-dimensional structure in the present invention;

[0028] Figure 5 It is a schematic diagram of a local three-dimensional cross-sectional structure in the present invention;

[0029] Figure 6 It is a schematic diagram of a local three-dimensional cross-sectional structure in the present invention;

[0030] Figure 7 For the present invention Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0031] Figure 8 For the present invention Figure 5 Schematic diagram of the local enlarged structure at point B in the middle.

[0032] In the figure: 1, base; 2, vertical plate; 3, fixed plate; 4, blackboard body; 5, limit plate; 6, gear 1; 7, rack plate 1; 8, slider; 9, force structure; 91, movable plate; 92, movable rod; 93, spring 1; 10, pedal; 11, screw; 12, movable block; 13, connecting rod; 14, dust cover; 15, blackboard eraser; 16, dust box; 17, drive structure; 171, motor; 1 72. Driving wheel; 173. Driven wheel; 18. Limiting groove; 19. Limiting block; 20. Storage box; 21. Knocking plate; 22. Reciprocating structure; 221. Rack plate 2; 222. Gear 2; 223. Connecting plate; 224. Fixing rod; 225. Spring 2; 23. Dust suction structure; 231. Dust suction box; 232. Fan; 233. Dust suction pipe; 234. Dust suction head; 24. Card plate; 25. Roller. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-8 As shown, a multifunctional display device for teaching with a dust removal function comprises two left and right bases 1, and a fixed plate 3 is fixed between the two bases 1, a vertical plate 2 is fixedly connected to the top of the base 1, and a blackboard body 4 is rotatably connected between the two vertical plates 2, a gear 6 is rotatably connected inside the vertical plate 2, rack plates 7 are meshed on both sides of the surface of the gear 6, and the other end of the rack plate 7 is fixedly connected to a limiting plate 5, both ends of the upper and lower limiting plates 5 are movably connected to the inner side of the vertical plate 2, and a force-applying structure 9 for driving it to move is arranged at the bottom of the lower limiting plate 5, a storage box 20 is fixed to the back of the vertical plate 2, and the interior of the storage box 20 is connected to the vertical plate 2, a screw rod 11 is rotatably connected between the top and the rear of the storage box 20, and a movable block 12 is threadedly connected to the surface of the screw rod 11, a connecting rod 13 is fixedly connected to one side of the movable block 12, a dust cover 14 is fixed to the bottom of the connecting rod 13, and a blackboard eraser 15 is fixed below the dust cover 14, a dust collecting box 16 is fixed to the bottom of the blackboard eraser 15, a driving structure 17 for driving the screw rod 11 to rotate is provided at the bottom of the storage box 20, a knocking plate 21 is rotatably connected inside the storage box 20, a reciprocating structure 22 for driving the knocking plate 21 to deflect is provided on the surface of the left vertical plate 2, and a dust collecting structure 23 for adsorbing dust is provided inside the storage box 20.

[0035] The force-applying structure 9 includes a movable plate 91, a movable rod 92 and a spring 93. The movable plate 91 is fixed to the bottom of the lower limiting plate 5. The surface of the movable plate 91 is movably connected to the inside of the fixed plate 3. The movable rod 92 is fixed to the top of the fixed plate 3 and is movably connected to the inside of the back of the movable plate 91. The spring 93 is sleeved on the surface of the movable rod 92. The two ends of the spring 93 are respectively fixed to the bottom of the back of the movable plate 91 and the top of the fixed plate 3. In this way, when the limiting plate 5 is driven downward, the back of the movable plate 91 will squeeze the spring 93. When the force on the limiting plate 5 is cancelled, the elastic force of the spring 93 itself can drive the limiting plate 5 back to the starting position.

[0036] The driving structure 17 includes a motor 171, a driving wheel 172 and a driven wheel 173. The motor 171 is fixed to the back of the left vertical plate 2. The output shaft of the motor 171 is fixed to one side of the driving wheel 172. The driving wheel 172 is connected to the driven wheel 173 through a belt. The tops of the driving wheel 172 and the driven wheel 173 are respectively fixed to the bottom ends of the two screw rods 11. In this way, when the screw rod 11 is driven to rotate, the motor 171 can be started and the driving wheel 172 can be driven to rotate. At the same time, the driven wheel 173 is driven to rotate through the belt, thereby driving the screw rod 11 to rotate.

[0037] The reciprocating structure 22 includes a rack plate 221, a gear 222, a connecting plate 223, a fixing rod 224 and a spring 225. The gear 222 is fixed to the surface of the rotating shaft at the left end of the knocking plate 21. One end of the fixing rod 224 is fixed to the surface of the left vertical plate 2. The inside of the connecting plate 223 is movably connected to the surface of the fixing rod 224. The left end of the connecting plate 223 is fixed to the right side of the rack plate 221. The top of the rack plate 221 is meshed with the bottom of the gear 222. The spring 225 is The second spring 225 is sleeved on the surface of the fixed rod 224, and the two ends of the second spring 225 are respectively fixed to the back side of the connecting plate 223 and the surface of the vertical plate 2. In this way, when the knocking plate 21 is driven to deflect, the rack plate 221 can be used to apply force to the rear side, and drive the connecting plate 223 to squeeze the second spring 225. As the rack plate 221 moves, the gear 222 will be driven to rotate, and the knocking plate 21 will be driven to hit the blackboard eraser 15 backwards, and so on.

[0038] The dust suction structure 23 includes a dust suction box 231, a fan 232, a dust suction pipe 233 and a dust suction head 234. The dust suction box 231 is fixed on the back of the storage box 20, the fan 232 is fixed on the left side of the dust suction box 231 and is connected to the dust suction box 231, there are two dust suction pipes 233, and one end of each of them is connected to the bottom of the dust suction box 231, and the other end of the dust suction pipe 233 is connected to the dust suction head 234. The dust suction head 234 is arranged on both sides of the surface of the storage box 20. In this way, as the knocking board 21 reciprocates and beats the blackboard eraser 15, the dust generated during the beating and the dust inside the dust collection box 16 can be adsorbed and fall into the interior of the dust suction box 231 for unified collection and treatment.

[0039] A slider 8 is fixed to the side of the rack plate 7 away from the gear 6, and the surface of the slider 8 is slidably connected to the inner wall of the vertical plate 2, so that the rack plate 7 can be auxiliary supported and its stability during movement can be maintained.

[0040] A limiting groove 18 is provided on the back of the vertical plate 2, and a limiting block 19 is slidably connected to the back of the limiting groove 18. One end of the limiting block 19 is fixed to one side of the movable block 12, so that the movable block 12 can be auxiliary limited to facilitate its up and down movement.

[0041] Both sides of the surface of the upper limiting plate 5 are fixedly connected with a clamping plate 24, and the clamping plate 24 is located at the top of the surface of the blackboard body 4, so that the blackboard body 4 can be clamped and fixed, thereby improving the stability during subsequent writing.

[0042] The bottom end of the movable plate 91 is fixedly connected with a pedal 10 , so that the user can apply force downward to the movable plate 91 through the foot.

[0043] Rollers 25 are provided on both the front and rear sides of the bottom of the base 1, so as to facilitate the application of force to push the device.

[0044] Working principle: when in use, the teacher can write on the surface of the blackboard body 4. After writing on the surface, when writing again, the teacher can step on the pedal 10 and drive the lower limit plate 5 to move downward through the force structure 9, and then drive the rack plate 7 on one side of the vertical plate 2 to move downward, and then the gear 6 will rotate and drive the rack plate 7 on the other side to move upward, thereby driving the upper limit plate 5 to move upward. At this time, the two limit plates 5 will cancel the limit on the blackboard body 4, and the blackboard body 4 can be flipped over. After the flipping is completed, the force on the force structure 9 can be canceled, and the blackboard body 4 can be limited again through the upper and lower limit plates 5, and then the two screws 11 can be driven to rotate through the driving structure 17. The blackboard eraser 15 and the dust collecting box 16 are moved together, so that the blackboard eraser 15 can wipe the back of the blackboard body 4, and the dust raised by wiping will be blocked by the dust cover 14 and will also fall into the inner side of the dust collecting box 16. After cleaning, the dust cover 14, the blackboard eraser 15 and the dust collecting box 16 can be moved to the inside of the storage box 20. In order to facilitate the subsequent wiping of the blackboard body 4, the reciprocating structure 22 can be reciprocated by the feet to apply force, and the knocking plate 21 can be driven to knock the surface of the blackboard eraser 15. In the process of knocking, the dust raised and the dust inside the dust collecting box 16 can be adsorbed together by the dust suction structure 23.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multifunctional display device for teaching with a dust removal function, comprising two left and right bases (1), a vertical plate (2) fixed on the top of the base, a fixed plate (3) fixed between the two vertical plates (2), and a blackboard body (4) rotatably connected between the two vertical plates (2), characterized in that: Also includes: A gear (6) is rotatably connected to the interior of the vertical plate (2), and rack plates (7) are meshed on both sides of the surface of the gear (6). The other end of the rack plate (7) is fixedly connected to a limit plate (5), and the two ends of the upper and lower limit plates (5) are movably connected to the inner side of the vertical plate (2); A force-applying structure (9) disposed at the bottom of the limiting plate (5) and used to drive the limiting plate (5) to move; A storage box (20) is fixed on the back of the vertical board (2), a screw rod (11) is rotatably connected between the storage box (20) and the vertical board (2), and a movable block (12) is threadedly connected to the surface of the screw rod (11), a connecting rod (13) is fixedly connected to one side of the movable block (12), a dust cover (14) is fixed to the bottom of the connecting rod (13), a blackboard eraser (15) is fixed below the dust cover (14), and a dust collection box (16) is fixed to the bottom of the blackboard eraser (15); A driving structure (17) disposed at the bottom of the storage box (20) and used to drive the screw rod (11) to rotate; A knocking plate (21) is rotatably connected to the inside of the storage box (20), and a reciprocating structure (22) is provided on the surface of the left vertical plate (2) for driving the knocking plate (21) to deflect, and a dust suction structure (23) for absorbing dust is provided inside the storage box (20).

2. The multifunctional display device for teaching with dust removal function according to claim 1, characterized in that: The force-applying structure (9) comprises a movable plate (91) fixed to the bottom of the limiting plate (5) below, a movable rod (92) fixed to the top of the fixed plate (3), and a spring (93) sleeved on the surface of the movable rod (92); the surface of the movable rod (92) is movably connected to the inside of the back of the movable plate (91).

3. The multifunctional display device for teaching with dust removal function according to claim 1, characterized in that: The driving structure (17) comprises a motor (171) fixed to the back of the left vertical plate (2), a driving wheel (172) and a driven wheel (173) respectively fixed to the bottom ends of the two screw rods (11), an output shaft of the motor (171) is fixed to one side of the driving wheel (172), and the driving wheel (172) is connected to the driven wheel (173) through a belt.

4. The multifunctional display device for teaching with dust removal function according to claim 1, characterized in that: The reciprocating structure (22) comprises a rack plate (221), a gear (222), a connecting plate (223), a fixing rod (224) and a spring (225). The gear (222) is fixed to the surface of the rotating shaft at the left end of the knocking plate (21). One end of the fixing rod (224) is fixed to the surface of the left vertical plate (2). The interior of the connecting plate (223) is movably connected to the surface of the fixing rod (224). The left end of the connecting plate (223) is fixed to the right side of the rack plate (221). The top of the rack plate (221) is meshed with the bottom of the gear (222). The spring (225) is sleeved on the surface of the fixing rod (224). The two ends of the spring (225) are respectively fixed to the back side of the connecting plate (223) and the surface of the vertical plate (2).

5. The multifunctional display device for teaching with dust removal function according to claim 1, characterized in that: The dust collection structure (23) comprises a dust collection box (231) fixed to the back of the storage box (20), a fan (232) connected to one side of the dust collection box (231), two dust collection pipes (233) connected to the bottom of the dust collection box (231), and a dust collection head (234) connected to the other end of the dust collection pipe (233), wherein the dust collection head (234) is arranged on both sides of the surface of the storage box (20).

6. The multifunctional display device for teaching with dust removal function according to claim 1, characterized in that: A sliding block (8) is fixed to the side of the rack plate 1 (7) away from the gear 1 (6), and the surface of the sliding block (8) is slidably connected to the inner wall of the vertical plate (2).

7. The multifunctional display device for teaching with dust removal function according to claim 1, characterized in that: A limiting groove (18) is provided on the back of the vertical plate (2), and the back of the limiting groove (18) is slidably connected to a limiting block (19), and one end of the limiting block (19) is fixed to one side of the movable block (12).

8. The multifunctional teaching display device with dust removal function according to claim 1, characterized in that: Both sides of the surface of the upper limiting plate (5) are fixedly connected with a clamping plate (24), and the clamping plate (24) is located at the top of the surface of the blackboard body (4).

9. The multifunctional teaching display device with dust removal function according to claim 2, characterized in that: The bottom end of the movable plate (91) is fixedly connected with a pedal (10).

10. The multifunctional teaching display device with dust removal function according to claim 1, characterized in that: Rollers (25) are arranged on both the front and rear sides of the bottom of the base (1).

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