Multi-angle adjustable magnetic teaching board writing auxiliary device

Abstract

This invention discloses a multi-angle adjustable magnetic teaching blackboard auxiliary device, belonging to the technical field of teaching blackboard auxiliary devices, including an adsorption unit; the outer side of the adsorption unit is provided with a mounting base through a square shell; a first cylinder is fixedly connected to the inner side of the mounting base; a second cylinder is rotatably connected to the bottom outer side of the first cylinder; a plate is provided on the outer side of the second cylinder through an adjustment mechanism; a locking cylinder is fixedly connected to the inner side of the first cylinder; the invention uses a pressing and squeezing column to move the squeezing block upward, which in turn moves the locking block upward, causing the locking block to move out of the inner side of the auxiliary groove, releasing the locking block from fixing the auxiliary cylinder and the second cylinder. At this time, the second cylinder is rotated to adjust the angle of the plate. After adjustment, the squeezing column is released, and the first spring drives the locking block to reset, causing the locking block to lock into the inner side of the auxiliary cylinder, limiting the position of the auxiliary cylinder and the second cylinder, simplifying the left and right angle adjustment steps of the plate, and enabling quick fine adjustment of the plate angle.

Description

Technical Field

[0001] This invention relates to the field of teaching blackboard writing aids, and in particular to a multi-angle adjustable magnetic teaching blackboard writing aid. Background Technology

[0002] Blackboard writing is a core part of classroom teaching. Traditional teaching relies on a fixed blackboard or simple auxiliary board, which has problems such as strong spatial limitations and poor ergonomic fit. A multi-angle adjustable magnetic blackboard writing auxiliary device is a new type of teaching auxiliary equipment that is adapted to modern classroom teaching and optimized and upgraded to address the shortcomings of traditional blackboard writing equipment. It uses strong magnetic adsorption technology and a mechanical multi-angle adjustment structure as its core, requiring no drilling or glue installation, and can be directly adapted to mainstream teaching board surfaces such as conventional magnetic blackboards, whiteboards, and greenboards in classrooms.

[0003] Currently, most multi-angle adjustable magnetic teaching blackboard auxiliary devices require turning knobs and inserting or removing clips to unlock, adjust, and lock the angle. This makes temporary angle adjustments in the classroom cumbersome and time-consuming, failing to meet the need for quick adjustment and locking, resulting in poor practicality for dynamic classrooms. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the current multi-angle adjustable magnetic teaching blackboard auxiliary device, the present invention is proposed.

[0006] Therefore, the purpose of this invention is to provide a multi-angle adjustable magnetic teaching blackboard auxiliary device, which is suitable for solving the problem that when adjusting the angle temporarily in the classroom, the operation is cumbersome, too time-consuming, and cannot meet the need for quick use with easy adjustment and locking, resulting in poor practicality for dynamic classrooms.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a multi-angle adjustable magnetic suction teaching blackboard auxiliary device, comprising an adsorption unit; a mounting base is provided on the outer side of the adsorption unit through a square shell; a first cylinder is fixedly connected to the inner side of the mounting base; a second cylinder is rotatably connected to the bottom outer side of the first cylinder; a plate is provided on the outer side of the second cylinder through an adjustment mechanism; a positioning cylinder is fixedly connected to the inner side of the first cylinder; a set of positioning blocks is fixedly connected to the top inner side of the positioning cylinder through a set of first springs; an auxiliary cylinder is fixedly connected to the inner side of the second cylinder; a set of extrusion blocks is slidably connected to the inner side of the auxiliary cylinder; and an extrusion column is fixedly connected to the bottom outer side of the set of extrusion blocks.

[0008] As a preferred embodiment of the multi-angle adjustable magnetic teaching blackboard auxiliary device of the present invention, the adjustment mechanism includes an adjustment seat; one end of the adjustment seat is fixedly connected to the outer side of the second cylinder; a rotating rod is rotatably connected to the inner side of the adjustment seat; an arc-shaped block is fixedly connected to the outer side of the rotating rod; a set of locking grooves is opened on the outer side of the arc-shaped block; the arc-shaped block is fixedly connected to the board body; a circular shell is fixedly connected to the outer side of the adjustment seat; a locking rod is fixedly connected to the inner side of the circular shell by a second spring, and the locking rod fits into the locking groove; a pulling rod is fixedly connected to one end of the outer side of the locking rod, and the pulling rod extends to the outside of the circular shell.

[0009] As a preferred embodiment of the multi-angle adjustable magnetic teaching blackboard auxiliary device of the present invention, the adsorption unit includes an adsorption shell; a magnet is fixedly connected to the inner side of the adsorption shell; and an anti-slip pad is fixedly connected to the outer side of the adsorption shell.

[0010] As a preferred embodiment of the multi-angle adjustable magnetic teaching blackboard auxiliary device of the present invention, wherein: an auxiliary column is fixedly connected to the outer side of the adsorption shell; a set of first slots is opened on the outer side of the auxiliary column; the outer side of the square shell is slidably connected to the outer side of the adsorption shell; a first locking block is fixedly connected to the inner side of the square shell by a third spring; a tension rod is fixedly connected to one outer end of the first locking block, and one outer end of the tension rod extends to the outside of the square shell; the outer side of the mounting base is fixedly connected to the outer side of the square shell.

[0011] As a preferred embodiment of the multi-angle adjustable magnetic teaching blackboard auxiliary device of the present invention, the first card slot is in the shape of a right trapezoid; the first card block is in the shape of a right trapezoid; and the first card block fits into the first card slot.

[0012] As a preferred embodiment of the multi-angle adjustable magnetic teaching blackboard auxiliary device of the present invention, a cleaning shell is fixedly connected to the outer side of the board; a sliding plate is slidably connected to the outer side of the board, and the sliding plate is slidably connected to the cleaning shell; a connecting shell is fixedly connected to the top outer side of the sliding plate; and a cleaning layer is provided inside the connecting shell through a fixing plate.

[0013] As a preferred embodiment of the multi-angle adjustable magnetic teaching blackboard auxiliary device of the present invention, the cleaning shell has a first threaded groove at the bottom outer side; the bottom outer wall of the sliding plate is threaded with a bolt, and the top of the bolt penetrates the sliding plate; the bolt matches the first threaded groove.

[0014] As a preferred embodiment of the multi-angle adjustable magnetic teaching blackboard auxiliary device of the present invention, the cleaning shell is slidably connected to a square plate on its inner side; a cleaning plate is provided on the inner side of the square plate via a push rod; a set of cleaning channels is provided on the outer side of the cleaning plate; and discharge channels are provided on the outer sides of both the cleaning shell and the sliding plate.

[0015] As a preferred embodiment of the multi-angle adjustable magnetic teaching blackboard auxiliary device of the present invention, the cleaning groove is provided with a cleaning roller; the outer side of the push rod is slidably connected to the inner side of the square plate; a baffle is fixedly connected to the outer side of the push rod; and the push rod is fixedly connected to the cleaning plate.

[0016] As a preferred embodiment of the multi-angle adjustable magnetic teaching blackboard auxiliary device of the present invention, the outer side of the fixing plate is slidably connected to the inner side of the connecting shell; the fixing plate is fixedly connected to the cleaning layer; a second threaded groove is provided on the outer side of the fixing plate; a threaded rod is rotatably connected to the outer side of the connecting shell, and one end of the threaded rod extends into the second threaded groove; the second threaded groove is threadedly connected to the threaded rod.

[0017] The beneficial effects of this invention are: 1. By attaching the adsorption unit to the magnetic blackboard, when it is necessary to adjust the left and right angle of the board to solve the problems of reflection and blind spots, the squeezing column is pressed. At this time, the squeezing column drives the squeezing block to move upward, so that the squeezing block presses against the locking block, and drives the locking block to move upward, so that the locking block moves out of the inner side of the auxiliary groove, releasing the locking block from fixing the auxiliary cylinder and the second cylinder. At this time, the second cylinder is rotated to adjust the angle of the board. After the adjustment is completed, the squeezing column is released. At this time, the first spring drives the locking block to reset, so that the locking block is locked into the inner side of the auxiliary cylinder, limiting the auxiliary cylinder and the second cylinder, and fixing the second cylinder. This application allows the board surface to be tilted left and right to adjust the angle by pressing. After releasing, the locking block automatically limits the position, simplifying the steps of adjusting the left and right angle of the board, thereby quickly fine-tuning the angle of the board in classroom teaching and improving its practicality for dynamic classrooms. 2. By pushing the sliding plate, the sliding plate moves the connecting shell, which in turn moves the fixed plate and the cleaning layer. The cleaning layer then cleans the writing on the board, quickly erasing the entire board surface. This allows teachers to wipe the entire board with just one hand, making the operation labor-saving and efficient, and improving the continuity of the teaching rhythm and the convenience of using the blackboard. 3. By pressing the push rod, the push rod moves the square plate and the cleaning plate, causing the cleaning plate to press against the cleaning layer. At this time, the pull rod is pushed back and forth, causing the cleaning plate to impact the cleaning layer and shake off the dust. Because the cleaning plate has a set of cleaning channels, the cleaning plate is like a grid. When the dust falls, it is removed from the cleaning shell through the discharge channel. At this time, simply place a trash can or a container for collecting dust under the discharge channel to collect the dust. This makes cleaning the cleaning layer and collecting dust more convenient and reduces the difficulty for teachers to clean the cleaning layer. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a structural diagram of the main body of the present invention; Figure 2 This is a partial structural diagram of the main body of the present invention; Figure 3 This is an exploded structural diagram of the adsorption shell and anti-slip pad of the present invention; Figure 4 This is a cross-sectional view of the auxiliary column and square shell of the present invention; Figure 5 This is an exploded structural diagram of the first cylinder, the second cylinder, the positioning cylinder, and the auxiliary cylinder of the present invention; Figure 6 This is an exploded structural diagram of the positioning cylinder, auxiliary cylinder, positioning block, and extrusion block of the present invention; Figure 7 This is an exploded structural diagram of the adjusting seat, arc block, and locking rod of the present invention; Figure 8 This is a structural diagram of the plate body, cleaning shell, and connecting shell of the present invention; Figure 9 This is an exploded structural diagram of the connecting shell and the fixing plate of the present invention; Figure 10 This is an exploded structural diagram of the cleaning shell, square plate, and cleaning plate of the present invention; Figure 11 This is an exploded view of the cleaning plate and cleaning roller of the present invention.

[0019] Figure Descriptions: 1. Adsorption unit; 2. Square shell; 3. Mounting base; 4. First cylinder; 5. Second cylinder; 6. Adjustment mechanism; 7. Plate; 8. Positioning cylinder; 9. Positioning block; 10. Auxiliary cylinder; 11. Extrusion block; 12. Extrusion column; 601. Adjustment base; 602. Rotating rod; 603. Arc-shaped block; 604. Positioning groove; 605. Circular shell; 606. Positioning rod; 607. Pulling rod; 101. Adsorption shell; 102. Magnet; 103. Anti-slip mat; 20. Auxiliary column; 21. First slot; 22. First block; 23. Tension rod; 30. Cleaning shell; 31. Sliding plate; 32. Connecting shell; 33. Fixing plate; 34. Cleaning layer; 35. First threaded groove; 36. Bolt; 37. Square plate; 38. Push rod; 39. Cleaning plate; 40. Cleaning channel; 41. Cleaning roller; 42. Baffle; 43. Second threaded groove; 44. Threaded rod; 45. Discharge channel. Detailed Implementation

[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0022] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is mutually exclusive, either alone or selectively, with other embodiments.

[0023] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0024] Example 1:

[0025] Reference Figure 1 - Figure 11According to one embodiment of the present invention, a multi-angle adjustable magnetic teaching blackboard auxiliary device is provided, including an adsorption unit 1; an installation base 3 is provided on the outer side of the adsorption unit 1 through a square shell 2; a first cylinder 4 is fixedly connected to the inner side of the installation base 3; a second cylinder 5 is rotatably connected to the bottom outer side of the first cylinder 4; a plate 7 is provided on the outer side of the second cylinder 5 through an adjustment mechanism 6; a positioning cylinder 8 is fixedly connected to the inner side of the first cylinder 4; a set of positioning blocks 9 are fixedly connected to the top inner side of the positioning cylinder 8 through a set of first springs; an auxiliary cylinder 10 is fixedly connected to the inner side of the second cylinder 5; a set of extrusion blocks 11 are slidably connected to the inner side of the auxiliary cylinder 10; and an extrusion column 12 is fixedly connected to the bottom outer side of the set of extrusion blocks 11.

[0026] By attaching the adsorption unit 1 to the magnetic blackboard, when it is necessary to adjust the left and right angle of the board 7 to solve the problems of reflection and blind spots, the squeezing column 12 is pressed. At this time, the squeezing column 12 drives the squeezing block 11 to move upward, so that the squeezing block 11 abuts against the locking block 9, and drives the locking block 9 to move upward, so that the locking block 9 moves out of the inner side of the auxiliary groove, releasing the locking block 9 from fixing the auxiliary cylinder 10 and the second cylinder 5. At this time, the second cylinder 5 is rotated to adjust the angle of the board 7. After the adjustment is completed, the squeezing column 12 is released. At this time, the first spring drives the locking block 9 to reset, so that the locking block 9 is locked into the inner side of the auxiliary cylinder 10, limiting the auxiliary cylinder 10 and the second cylinder 5, and fixing the second cylinder 5. This application allows the board surface to be tilted left and right to adjust the angle by pressing. After releasing, the locking block 9 automatically limits the position, simplifying the steps of adjusting the left and right angle of the board 7, thereby quickly fine-tuning the angle of the board 7 in classroom teaching, and improving the practicality of adapting to dynamic classrooms.

[0027] An auxiliary column 20 is fixedly connected to the outer side of the adsorption shell 101; a set of first slots 21 are opened on the outer side of the auxiliary column 20; the outer side of the square shell 2 is slidably connected to the outer side of the adsorption shell 101; a first locking block 22 is fixedly connected to the inner side of the square shell 2 by a third spring; a tension rod 23 is fixedly connected to one end of the outer side of the first locking block 22, and one end of the outer side of the tension rod 23 extends to the outside of the square shell 2; the outer side of the mounting base 3 is fixedly connected to the outer side of the square shell 2.

[0028] When it is necessary to adjust the vertical position of the board 7 to facilitate lecturing, writing, or placing items, the tension rod 23 is pulled, causing the first locking block 22 to move out of the first locking slot 21, thus releasing the square shell 2 from its fixed position. At this time, the board 7 is pushed, causing the board 7 to slide up and down on the outside of the adsorption shell 101 to adjust the position. After the position adjustment is completed, the tension rod 23 is released, causing the third spring to reset the first locking block 22 and lock it into the first locking slot 21, fixing the square shell 2. This application enables the board 7 to be flexibly adjusted in the vertical direction, allowing teachers to quickly adjust the height of the board 7 according to actual teaching needs without disassembling or reinstalling it, effectively improving classroom operation efficiency and ease of use.

[0029] The adjustment mechanism 6 includes an adjustment seat 601; one end of the adjustment seat 601 is fixed to the outer side of the second cylinder 5; a rotating rod 602 is rotatably connected to the inner side of the adjustment seat 601; an arc-shaped block 603 is fixed to the outer side of the rotating rod 602; a set of locking grooves 604 are opened on the outer side of the arc-shaped block 603; the arc-shaped block 603 is fixedly connected to the plate 7; a circular shell 605 is fixed to the outer side of the adjustment seat 601; a locking rod 606 is fixed to the inner side of the circular shell 605 by a second spring, and the locking rod 606 fits into the locking groove 604; a pulling rod 607 is fixed to one end of the outer side of the locking rod 606, and the pulling rod 607 extends to the outside of the circular shell 605.

[0030] By pulling the lever 607, the lever 607 moves the locking lever 606 out of the locking groove 604, releasing the arc block 603 from its fixation. At this time, the up and down angle of the plate 7 can be adjusted. After adjustment, the lever 607 is released, causing the second spring to drive the locking lever 606 to reset and lock into the locking groove 604, fixing the arc block 603. Combined with the left and right angle adjustment of the plate 7, the plate 7 can be adjusted left and right, up and down, thereby fully covering the visual needs of students in different positions and effectively reducing glare interference and blind spots.

[0031] The first slot 21 is in the shape of a right trapezoid; the first block 22 is in the shape of a right trapezoid; the first block 22 fits into the first slot 21.

[0032] The first slot 21 is shaped like a right-angled trapezoid; the first locking block 22 is also shaped like a right-angled trapezoid. When adjusting the plate 7 upwards, the plate 7 or the square shell 2 is pushed upwards directly. At this time, the inclined surface of the first locking block 22 contacts the inclined surface of the first slot 21. Under the push of external force, the first locking block 22 gradually retracts along the inclined surface of the first slot 21 until it moves out of the first slot 21. When it moves to the next first slot 21, the third spring drives the first locking block 22 to reset and lock into the second first slot 21 to complete the fixation. This process is repeated to make the plate 7... When adjusting upwards, there is no need to pull the tension rod 23, which simplifies the operation of adjusting the plate 7 upwards and makes it easier and more convenient to adjust the plate 7 upwards. However, when adjusting the plate 7 downwards, since the right-angled surfaces of the first locking block 22 and the first locking groove 21 abut against each other, they cannot be automatically disengaged by gravity or pushing force. It is necessary to manually pull the tension rod 23 to disengage the first locking block 22 from the first locking groove 21 and move it downwards. This ensures the convenience of adjustment while effectively preventing the plate 7 from sliding down on its own due to accidental force, ensuring safety and stability during use.

[0033] The adsorption unit 1 includes an adsorption shell 101; a magnet 102 is fixedly attached to the inner side of the adsorption shell 101; and an anti-slip pad 103 is fixedly attached to the outer side of the adsorption shell 101.

[0034] By placing the magnet 102 into the adsorption shell 101, the magnet 102 is adsorbed onto the magnetic blackboard in the adsorption shell 101 and separated by the anti-slip pad 103, which avoids direct contact between the magnet 102 and the magnetic blackboard, reduces wear and enhances adsorption stability. At the same time, the anti-slip pad 103 effectively prevents the device from sliding on the surface of the magnetic blackboard, ensuring that the position of the board 7 is stable and reliable during the teaching process.

[0035] A cleaning shell 30 is fixedly connected to the outer side of the plate 7; a sliding plate 31 is slidably connected to the outer side of the plate 7, and the sliding plate 31 is slidably connected to the cleaning shell 30; a connecting shell 32 is fixedly connected to the top outer side of the sliding plate 31; a cleaning layer 34 is provided inside the connecting shell 32 through a fixing plate 33.

[0036] By pushing the sliding plate 31, the sliding plate 31 moves the connecting shell 32, which in turn moves the fixing plate 33 and the cleaning layer 34. The cleaning layer 34 then cleans the writing on the board 7, quickly erasing the entire board surface. This allows teachers to wipe the entire board with just one hand by pushing the sliding plate 31 during class, making the operation labor-saving and efficient, and improving the continuity of the teaching rhythm and the convenience of using the blackboard.

[0037] The outer bottom of the cleaning shell 30 is provided with a first threaded groove 35; the bottom of the outer wall of the sliding plate 31 is threaded with a bolt 36, and the top of the bolt 36 penetrates through the sliding plate 31; the bolt 36 matches the first threaded groove 35.

[0038] The first bolt 36 is engaged in the first threaded groove 35, which limits the sliding plate 31 and prevents it from shifting due to vibration or accidental contact when not wiping. This ensures that the content on the plate remains stable and clear during teaching. When cleaning is required, simply loosen the bolt 36 to disengage it from the first threaded groove 35, and the sliding plate 31 can slide freely for wiping. After use, tighten the bolt 36 again to restore the locked state, making the operation more flexible.

[0039] A square plate 37 is slidably connected to the inner side of the cleaning shell 30; a cleaning plate 39 is provided on the inner side of the square plate 37 via a push rod 38; a set of cleaning channels 40 is provided on the outer side of the cleaning plate 39; and discharge channels 45 are provided on the outer sides of both the cleaning shell 30 and the sliding plate 31.

[0040] After the plate 7 is wiped, the sliding plate 31 is reset, and then the push rod 38 is pressed to move the square plate 37 and the cleaning plate 39, so that the cleaning plate 39 is pressed onto the cleaning layer 34. At this time, the pull rod 607 is pushed back and forth to make the cleaning plate 39 impact the cleaning layer 34, shaking off the dust on the cleaning layer 34. Because a set of cleaning channels 40 is opened on the cleaning plate 39, the cleaning plate 39 is grid-shaped. When the dust falls, it is removed from the cleaning shell 30 through the discharge channel 45. At this time, it is only necessary to place a trash can or a container for collecting dust under the discharge channel 45 to collect the dust, thus making the cleaning of the cleaning layer 34 and the collection of dust more convenient and reducing the difficulty for teachers to clean the cleaning layer 34.

[0041] Example 2:

[0042] Reference Figure 9 - Figure 11 The difference from Embodiment 1 is that: a cleaning roller 41 is provided in the cleaning channel 40; the outer side of the push rod 38 is slidably connected to the inner side of the square plate 37; a baffle 42 is fixedly connected to the outer side of the push rod 38; and the push rod 38 is fixedly connected to the cleaning plate 39.

[0043] The cleaning roller 41 is installed in the cleaning channel 40, which pushes the square plate 37 and the cleaning plate 39 with the push rod 38. When the cleaning plate 39 cleans the cleaning layer 34, the push rod 38 is pulled up and down, causing it to slide up and down on the inner side of the square plate 37. This causes the push rod 38 to drive the cleaning plate 39 to slide up and down, and the cleaning roller 41 to roll on the cleaning layer 34 to squeeze and remove dust. This, together with the cleaning plate 39 and the cleaning channel 40, further improves the dust removal efficiency and prevents the cleaning layer 34 from being affected by excessive dust accumulation. At the same time, the baffle 42 blocks the opening of the square plate 37, preventing dust from moving out from the opening at the push rod 38 of the square plate 37.

[0044] The outer side of the fixing plate 33 is slidably connected to the inner side of the connecting shell 32; the fixing plate 33 is fixedly connected to the cleaning layer 34; a second threaded groove 43 is provided on the outer side of the fixing plate 33; a threaded rod 44 is rotatably connected to the outer side of the connecting shell 32, and one end of the threaded rod 44 extends into the second threaded groove 43; the second threaded groove 43 is threadedly connected to the threaded rod 44.

[0045] By rotating the threaded rod 44, which is threadedly connected to the second threaded groove 43, the rotation of the threaded rod 44 drives the fixed plate 33 to move through the second threaded groove 43. This causes the fixed plate 33 to move the cleaning layer 34, thereby adjusting the wiping force of the cleaning layer 34 on the plate 7. When the cleaning layer 34 is cleaning, the movement of the fixed plate 33 allows the cleaning layer 34 to penetrate deeper into the cleaning shell 30, further reducing the risk of dust overflow.

[0046] Working principle: First, the adsorption unit 1 is adsorbed onto the magnetic blackboard. At this time, the magnet 102 in the adsorption shell 101 of the adsorption unit 1 is adsorbed onto the magnetic blackboard, but is separated by the anti-slip pad 103, preventing direct contact between the magnet 102 and the magnetic blackboard, reducing wear and enhancing adsorption stability. Simultaneously, the anti-slip pad 103 effectively prevents the device from sliding on the magnetic blackboard surface, ensuring the board 7 remains stable and reliable during teaching. When it is necessary to adjust the left and right angles of the board 7 to address glare and blind spots, the squeezing column 12 is pressed. The squeezing column 12 causes the squeezing block 11 to move upwards, pressing against the locking block 9, which in turn moves the locking block 9 upwards. Move the locking block 9 out of the inner side of the auxiliary groove, releasing the locking block 9 from fixing the auxiliary cylinder 10 and the second cylinder 5. At this time, rotate the second cylinder 5 to adjust the angle of the plate body 7. After the adjustment is completed, release the extrusion column 12. At this time, the first spring drives the locking block 9 to reset, so that the locking block 9 is locked into the inner side of the auxiliary cylinder 10, limiting the auxiliary cylinder 10 and the second cylinder 5, fixing the second cylinder 5. This allows the plate surface to be tilted left and right by pressing and controlling it. After releasing, the locking block 9 automatically limits the adjustment steps of the left and right angle of the plate body 7, simplifying the process. This allows for quick fine-tuning of the plate body 7 angle in classroom teaching, improving its practicality for adapting to dynamic classrooms.

[0047] Secondly, by pulling the lever 607, the lever 607 moves the locking lever 606 out of the locking groove 604, releasing the arc block 603 from its fixation. At this time, the up and down angle of the plate 7 is adjusted. After the adjustment is completed, the lever 607 is released, causing the second spring to drive the locking lever 606 to reset and lock into the locking groove 604, thus fixing the arc block 603. Combined with the left and right angle adjustment of the plate 7, the plate 7 can be adjusted left and right and up and down, thereby fully covering the visual needs of students in different positions and effectively reducing glare interference and blind spots.

[0048] Secondly, when it is necessary to adjust the vertical position of the board 7 to facilitate lecturing, writing, or placing items, the tension rod 23 is pulled, causing the first locking block 22 to move out of the first locking slot 21, thus releasing the square shell 2 from its fixed position. At this time, the board 7 is pushed, causing the square shell 2 to slide up and down on the outside of the adsorption shell 101 to adjust its position. After the position adjustment is complete, the tension rod 23 is released, causing the third spring to reset the first locking block 22, which then engages in the first locking slot 21, fixing the square shell 2. This allows the board 7 to be flexibly adjusted vertically, enabling teachers to quickly adjust the height of the board 7 according to actual teaching needs without disassembly or reinstallation, effectively improving classroom operation efficiency and ease of use. Furthermore, the first locking slot 21 and the first locking block 22 are both right-angled trapezoidal, allowing for direct upward adjustment of the board 7 or the square shell 2 by simply pushing the board 7 or the square shell 2 upwards. The inclined surface of the first locking block 22 contacts the inclined surface of the first locking groove 21. Under the push of external force, the first locking block 22 gradually retracts along the inclined surface of the first locking groove 21 until it moves out of the first locking groove 21. When it moves to the next first locking groove 21, the third spring drives the first locking block 22 to reset and lock into the second first locking groove 21 to complete the fixation. This process is repeated so that when the plate 7 is adjusted upward, there is no need to pull the tension rod 23, which simplifies the operation of adjusting the plate 7 upward and makes the upward adjustment of the plate 7 simpler and more convenient. When adjusting the plate 7 downward, since the right angle surfaces of the first locking block 22 and the first locking groove 21 abut against each other, they cannot be automatically disengaged by gravity or pushing force. The tension rod 23 must be manually pulled to disengage the first locking block 22 from the first locking groove 21 to achieve downward movement. This ensures the convenience of adjustment while effectively preventing the plate 7 from sliding down due to accidental force, ensuring safety and stability during use.

[0049] Then, by pushing the sliding plate 31, the sliding plate 31 moves the connecting shell 32, which in turn moves the fixing plate 33 and the cleaning layer 34. The cleaning layer 34 then cleans the writing on the board 7, quickly erasing the entire board surface content. This allows teachers to wipe the entire surface with just one hand by pushing the sliding plate 31 during class, making the operation labor-saving and efficient, and improving the continuity of the teaching rhythm and the convenience of using the blackboard.

[0050] Furthermore, the first bolt 36 is engaged in the first threaded groove 35, which limits the sliding plate 31 and prevents it from shifting due to vibration or accidental contact when not wiping. This ensures that the content on the plate remains stable and clear during teaching. When cleaning is required, simply loosen the bolt 36 to disengage it from the first threaded groove 35, and the sliding plate 31 can slide freely for wiping. After use, tighten the bolt 36 again to restore the locked state, making the operation more flexible.

[0051] After the plate 7 is wiped, the sliding plate 31 is reset, and then the push rod 38 is pressed to move the square plate 37 and the cleaning plate 39, so that the cleaning plate 39 is pressed onto the cleaning layer 34. At this time, the pull rod 607 is pushed back and forth to make the cleaning plate 39 hit the cleaning layer 34 and shake off the dust on the cleaning layer 34. Because a set of cleaning channels 40 is opened on the cleaning plate 39, the cleaning plate 39 is like a grid. When the dust falls, it is removed from the cleaning shell 30 through the discharge channel 45. At this time, it is only necessary to place a trash can or a container for collecting dust under the discharge channel 45 to collect the dust, thus making the cleaning of the cleaning layer 34 and the collection of dust more convenient and reducing the difficulty for teachers to clean the cleaning layer 34.

[0052] Finally, the cleaning roller 41 installed in the cleaning channel 40 pushes the square plate 37 and the cleaning plate 39 with the push rod 38. When the cleaning plate 39 cleans the cleaning layer 34, the push rod 38 is pulled up and down, causing it to slide up and down on the inner side of the square plate 37. This causes the push rod 38 to drive the cleaning plate 39 to slide up and down, and the cleaning roller 41 to roll on the cleaning layer 34 to squeeze and remove dust. This, together with the cleaning plate 39 and the cleaning channel 40, further improves the dust removal efficiency and prevents the cleaning layer 34 from being affected by excessive dust accumulation. At the same time, the baffle 42 blocks the opening of the square plate 37, preventing dust from moving out from the opening at the push rod 38 of the square plate 37.

[0053] Furthermore, by rotating the threaded rod 44, which is threadedly connected to the second threaded groove 43, the rotation of the threaded rod 44 drives the fixed plate 33 to move through the second threaded groove 43, thereby causing the fixed plate 33 to move the cleaning layer 34. This adjusts the wiping force of the cleaning layer 34 on the plate 7. Also, when the cleaning layer 34 is cleaning, the movement of the fixed plate 33 allows the cleaning layer 34 to penetrate deeper into the cleaning shell 30, further reducing the risk of dust overflow.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A multi-angle adjustable magnetic teaching blackboard auxiliary device, comprising an adsorption unit (1); an mounting base (3) is provided on the outer side of the adsorption unit (1) through a square shell (2); a first cylinder (4) is fixedly connected to the inner side of the mounting base (3); a second cylinder (5) is rotatably connected to the bottom outer side of the first cylinder (4); a plate (7) is provided on the outer side of the second cylinder (5) through an adjustment mechanism (6); characterized in that, A locking cylinder (8) is fixedly connected to the inner side of the first cylinder (4); a set of locking blocks (9) is fixedly connected to the inner top of the locking cylinder (8) by a set of first springs; an auxiliary cylinder (10) is fixedly connected to the inner side of the second cylinder (5); a set of extrusion blocks (11) is slidably connected to the inner side of the auxiliary cylinder (10); an extrusion column (12) is fixedly connected to the outer bottom end of the set of extrusion blocks (11).

2. The multi-angle adjustable magnetic teaching blackboard auxiliary device according to claim 1, characterized in that: The adjustment mechanism (6) includes an adjustment seat (601); one end of the adjustment seat (601) is fixed to the outer side of the second cylinder (5); a rotating rod (602) is rotatably connected to the inner side of the adjustment seat (601); an arc-shaped block (603) is fixed to the outer side of the rotating rod (602); a set of locking grooves (604) is opened on the outer side of the arc-shaped block (603); the arc-shaped block (603) is fixedly connected to the plate (7); a circular shell (605) is fixed to the outer side of the adjustment seat (601); a locking rod (606) is fixed to the inner side of the circular shell (605) by a second spring, and the locking rod (606) fits into the locking groove (604); a pulling rod (607) is fixed to one end of the outer side of the locking rod (606), and the pulling rod (607) extends to the outside of the circular shell (605).

3. The multi-angle adjustable magnetic teaching blackboard auxiliary device according to claim 2, characterized in that: The adsorption unit (1) includes an adsorption shell (101); a magnet (102) is fixedly connected to the inner side of the adsorption shell (101); and an anti-slip pad (103) is fixedly connected to the outer side of the adsorption shell (101).

4. The multi-angle adjustable magnetic teaching blackboard auxiliary device according to claim 3, characterized in that: An auxiliary column (20) is fixed to the outside of the adsorption shell (101); a set of first slots (21) are provided on the outside of the auxiliary column (20); the outside of the square shell (2) is slidably connected to the outside of the adsorption shell (101); a first locking block (22) is fixed to the inside of the square shell (2) by a third spring; a tension rod (23) is fixed to one end of the outside of the first locking block (22), and one end of the tension rod (23) extends to the outside of the square shell (2); the outside of the mounting base (3) is fixed to the outside of the square shell (2).

5. The multi-angle adjustable magnetic teaching blackboard auxiliary device according to claim 4, characterized in that: The first slot (21) is in the shape of a right trapezoid; the first block (22) is in the shape of a right trapezoid; the first block (22) fits into the first slot (21).

6. The multi-angle adjustable magnetic teaching blackboard auxiliary device according to claim 5, characterized in that: A cleaning shell (30) is fixedly connected to the outer side of the plate (7); a sliding plate (31) is slidably connected to the outer side of the plate (7), and the sliding plate (31) is slidably connected to the cleaning shell (30); a connecting shell (32) is fixedly connected to the top of the outer side of the sliding plate (31); a cleaning layer (34) is provided inside the connecting shell (32) through a fixing plate (33).

7. The multi-angle adjustable magnetic teaching blackboard auxiliary device according to claim 6, characterized in that: The outer bottom of the cleaning shell (30) is provided with a first threaded groove (35); the bottom of the outer wall of the sliding plate (31) is threaded with a bolt (36), and the top of the bolt (36) penetrates the sliding plate (31); the bolt (36) matches the first threaded groove (35).

8. The multi-angle adjustable magnetic teaching blackboard auxiliary device according to claim 7, characterized in that: A square plate (37) is slidably connected to the inner side of the cleaning shell (30); a cleaning plate (39) is provided on the inner side of the square plate (37) via a push rod (38); a set of cleaning channels (40) is provided on the outer side of the cleaning plate (39); and discharge channels (45) are provided on the outer sides of both the cleaning shell (30) and the sliding plate (31).

9. The multi-angle adjustable magnetic teaching blackboard auxiliary device according to claim 8, characterized in that: The cleaning channel (40) is provided with a cleaning roller (41); the outer side of the push rod (38) is slidably connected to the inner side of the square plate (37); a baffle (42) is fixedly connected to the outer side of the push rod (38); the push rod (38) is fixedly connected to the cleaning plate (39).

10. The multi-angle adjustable magnetic teaching blackboard auxiliary device according to claim 9, characterized in that: The outer side of the fixing plate (33) is slidably connected to the inner side of the connecting shell (32); the fixing plate (33) is fixedly connected to the cleaning layer (34); a second threaded groove (43) is provided on the outer side of the fixing plate (33); a threaded rod (44) is rotatably connected to the outer side of the connecting shell (32), and one end of the threaded rod (44) extends into the second threaded groove (43); the second threaded groove (43) is threadedly connected to the threaded rod (44).

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