Erasable magnetic writing board

Abstract

The utility model provides an all-erasable magnetic writing board belongs to magnetic board erasing technical field, this magnetic writing board includes support board and frame, and installs magnetic writing screen on the surface of support board, the frame outer surface edge position fixed mounting stop piece, and set through the stop piece limit in the outside of magnetic writing screen, and along the parallel direction of magnetic writing screen setting movable erasing assembly. The magnetic stripe in the equipment can all erase the character on the magnetic writing board once, improves the erasing effect, saves time, and is convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of magnetic plate erasure technology, and more specifically, to a magnetic writing board that can be completely erased. Background Technology

[0002] In educational, office, and meeting settings, magnetic whiteboards and blackboards are common writing tools, widely used due to their reusability and ease of cleaning.

[0003] Current large-size magnetic writing screens and magnetic writing tablets rely on magnetic erasers to achieve the erasing function. However, due to the limited size of the magnetic eraser and the uneven distribution of the magnetic field, the erasing effect and efficiency of magnetic writing tablets are not ideal. Therefore, a magnetic writing tablet that can completely erase is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a magnetic writing board that is easy to erase and can be completely erased.

[0005] This utility model is implemented as follows:

[0006] This utility model provides a fully erasable magnetic writing board, including a support plate, a magnetic writing screen, and a frame. The magnetic writing screen is mounted on the support plate, and a limiting member is provided on the outer surface of the frame to fix the magnetic writing screen to the support plate. A movable erasing component is arranged parallel above the magnetic writing screen. The movable erasing component is movably connected to the limiting member, so that the movable erasing component can move on the parallel surface above the magnetic writing screen.

[0007] In a preferred embodiment, the limiting member includes a limiting frame, the inner side of which is provided with an open limiting groove, and is movably connected to the movable erasing component through the open limiting groove.

[0008] In a preferred embodiment, the frame is disposed at least on both sides of the support plate and is fixedly disposed to both sides of the support plate.

[0009] In a preferred embodiment, the erasing assembly includes a connecting plate and a magnetic strip. The magnetic strip is mounted on the connecting plate, and round rods are fixedly mounted at both ends of the connecting plate. One end of each round rod extends into the interior of an opening limiting groove, and a roller that can roll within the opening limiting groove is provided at this end.

[0010] In a preferred embodiment, a magnetic shielding element is provided on the outside of the magnetic strip to block the magnetic strip.

[0011] The completely erasable magnetic writing board provided by this utility model has the following beneficial effects:

[0012] By setting a movable magnetic strip on the outside of the magnetic writing screen, the magnetic strip can move stably on the limiting frame via rollers. The movement of the rollers can drive the magnetic strip to move outside the magnetic writing screen. Under the action of the large-area dispersed magnetic field of the magnetic strip, the floating particles are attracted to the sides or other parts of the capsule, while particles of another color fill the positions of the floating particles, thus realizing the complete erasure of the writing on the magnetic writing screen in one go, saving time and effort and making it easy to use. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the novel structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the magnetic shielding component of this utility model.

[0016] Figure 3 This is a schematic diagram of the structure of the magnetic shielding component of this utility model, which is a shielding magnetic shielding plate;

[0017] Figure 4 This is a schematic diagram of the magnetic writing screen structure of this utility model.

[0018] In the diagram: 1. Support plate; 2. Magnetic writing screen; 3. Limiting component; 31. Limiting frame; 32. Opening limiting groove; 4. Erasing component; 42. Magnetic strip; 43. Round rod; 44. Roller; 5. Frame; 6. Magnetic shielding component. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Example

[0021] Reference Figure 1This utility model provides a technical solution: a magnetic writing board that can be completely erased, including a support plate 1, a magnetic writing screen 2, and a frame 5. The magnetic writing screen 2 is mounted on the support plate 1. The frame 5 is characterized by having a limiting member 3 on its outer surface, which fixes the magnetic writing screen 2 to the support plate 1. A movable erasing component 4 is arranged parallel above the magnetic writing screen 2. The movable erasing component 4 is movably connected to the limiting member 3, allowing it to move on the parallel surface above the magnetic writing screen 2.

[0022] The movable erasing component 4 can also be installed on the back of the magnetic writing screen 2 or in other locations that facilitate erasing the written content on the magnetic writing screen 2, and is not limited to the surface of the magnetic writing screen 2. The support plate 1 can be made of metal plates such as aluminum alloy plates, which are lightweight, high-strength, and corrosion-resistant. The magnetic writing screen 2 is composed of microcapsules, a PET base layer, and a back protective layer. The microcapsule layer contains two colors of nanoparticles and a suspension. The PET base layer is made of transparent PET material, which has good toughness and light transmittance, and plays a role in protecting the microcapsule layer. The frame 5 is made of aluminum alloy with a rectangular cross-section. Its surface is anodized to enhance wear resistance and corrosion resistance, and can fix and protect the support plate 1 and the magnetic writing screen 2.

[0023] In a preferred embodiment, the limiting member 3 includes a limiting frame 31, with an open limiting groove 32 provided on the inner side of the limiting frame 31. The opening limiting groove 32 is movably connected to the movable erasing component 4. The limiting frame 31 is generally elongated, with its length matching the side length of the frame 5. Its cross-section is "U"-shaped, with the opening facing the magnetic writing screen 2. The limiting frame 31 is fixedly installed on the outer edge of the frame 5 by screws. The opening limiting groove 32 is opened on the inner side of the limiting frame 31 and extends through the entire limiting frame 31 along its length. The edge of the groove is rounded to reduce the frictional resistance when the erasing component 4 moves, ensuring that the erasing component 4 can move smoothly in the groove.

[0024] In a preferred embodiment, the frame 5 is disposed on at least both sides of the support plate 1 and is fixedly disposed on both sides of the support plate 1.

[0025] In a preferred embodiment, the erasing assembly 4 includes a connecting plate and a magnetic strip 42. The magnetic strip 42 is mounted on the connecting plate, and round rods 43 are fixedly mounted at both ends of the connecting plate. One end of the round rod 43 extends into the opening limiting groove 32, and a roller 44 that can roll within the opening limiting groove 32 is provided at this end. Alternatively, multiple magnetic strips can be spliced ​​together. The entire surface of the magnetic strip 42 must be N pole or S pole. The round rod 43 is made of stainless steel. One end is fixedly connected to the connecting plate by welding, and the other end extends into the opening limiting groove 32. The roller 44 is rotatably connected to one end of the round rod 43 via a bearing. The roller 44 is made of polyurethane. The roller 44 is set to roll within the opening limiting groove 32, so that the erasing assembly 4 can move smoothly.

[0026] Reference Figures 2-4 As shown, a magnetic shielding component 6 is provided on the outside of the magnetic strip 42 to shield the magnetic strip 42 and prevent the magnetic force generated by the magnetic strip 42 itself from affecting writing on the magnetic writing screen 2.

[0027] The magnetic shielding component 6 can be a shielding plate. The shielding plate 6 is placed on one side of the magnetic strip and can be used to block the magnetic force emitted by the magnetic strip 42 to the non-erasable area of ​​the magnetic writing screen 2, so as to prevent the magnetic field of the magnetic pen from being interfered with during writing.

[0028] The magnetic shielding component 6 can also be a magnetic shielding cover, which completely covers the outside of the magnetic strip 42 to reduce the influence of the magnetic force of the magnetic strip 42 on the writing of the magnetic writing screen 2.

[0029] The magnetic shielding component 6 can also be a groove. By opening a groove on the magnetic writing screen 2, the position of the groove corresponds to the initial position of the magnetic strip. By increasing the distance between the bottom of the magnetic strip 42 and the surface of the magnetic writing screen 2, the influence of the magnetic strip 42 on writing can be reduced.

[0030] Specifically, the working process or working principle of the erasable magnetic writing board is as follows: This device can erase all the writing on the magnetic writing screen 2 by moving the magnetic strip 42 on the outside of the magnetic writing screen 2.

[0031] In this device, the magnetic writing screen 2 is made by coating microcapsules on PET or other transparent materials and attaching or coating a protective layer on the back. The magnetic writing screen 2 consists of two colors of nanoparticles and a suspension encapsulated in microcapsules. Under the action of a near-vertical magnetic field, the particles of one color are attracted to float to the top, thereby changing the color and contrast and realizing the writing display function.

[0032] When it is necessary to erase all the text on the magnetic writing screen 2, the magnetic strip 42 can be moved. As the magnetic strip 42 moves outside the magnetic writing screen 2, it generates a magnetic field. Under the action of the large-area dispersed magnetic field, the floating particles are attracted to the sides or other parts of the capsule of the magnetic writing screen 2, while particles of another color fill the positions of the floating particles. This achieves the erasing function, thereby erasing all the text on the magnetic writing screen 2.

Claims

1. A completely erasable magnetic writing board, comprising a support plate (1), a magnetic writing screen (2), and a frame (5), wherein the magnetic writing screen (2) is mounted on the support plate (1), characterized in that, The outer surface of the frame (5) is provided with a limiting member (3), which fixes the magnetic writing screen (2) to the support plate (1). A movable erasing component (4) is provided parallel above or below the magnetic writing screen (2). The movable erasing component (4) is movably connected to the limiting member (3), so that the movable erasing component (4) moves on the parallel surface above the magnetic writing screen (2) or on the parallel surface below the support plate (1) below the magnetic writing screen (2).

2. The erasable magnetic writing board according to claim 1, characterized in that, The limiting component (3) includes a limiting frame (31), and an open limiting groove (32) is provided on the inner side of the limiting frame (31), which is movably connected to the movable erasing component (4) through the open limiting groove (32).

3. The erasable magnetic writing board according to claim 2, characterized in that, The frame (5) is disposed at least on both sides of the support plate (1) and is fixedly disposed on both sides of the support plate (1).

4. The erasable magnetic writing board according to claim 2 or 3, characterized in that, The erasing assembly (4) includes a connecting plate and a magnetic strip (42). The magnetic strip (42) is mounted on the connecting plate, and round rods (43) are fixedly mounted at both ends of the connecting plate. One end of the round rod (43) extends into the interior of the opening limiting groove (32), and a roller (44) that can roll in the opening limiting groove (32) is provided at this end.

5. The erasable magnetic writing board according to claim 4, characterized in that, The magnetic strip (42) is provided with a magnetic shielding element (6) to shield the magnetic strip (42).

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