CN109551939B

CN109551939B - Writing board and method for reserving engraving and printing of writing and drawing works on writing board

Info

Publication number: CN109551939B
Application number: CN201811369655.0A
Authority: CN
Inventors: 宋明刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-11-17
Filing date: 2018-11-17
Publication date: 2020-11-06
Anticipated expiration: 2038-11-17
Also published as: CN109551939A

Abstract

The invention discloses a writing board, relating to the technical field of writing tools, comprising: frame 5, frame 5 includes from bottom to top: the device comprises a grid 8, a magnetic ball 7, a sliding strong magnet 9, a paper slot 10, a display board 1, a magnetic pen 2 and a magnetic erasing eraser 4. In the embodiment of the invention, the sliding strong magnet 9 is adopted to absorb the magnet ball 7 under the display panel 1, the magnet ball 7 impacts the paper, so that the paper is in close contact with the imprinting object 901 for imprinting, and the writing and drawing works of the writing board are reserved through the paper.

Description

Writing board and method for reserving engraving and printing of writing and drawing works on writing board

Technical Field

The invention relates to the technical field of writing tools, in particular to a writing board.

Background

The writing board is an environment-friendly and reusable writing tool.

At present, writing boards used by users mainly write and draw pictures, and because the pictures written on the writing boards cannot be reserved in the form of paper and other substances, the satisfactory pictures generated by writing and drawing on the writing boards cannot be reserved to cause regret, so that the users can not concentrate and seriously use the writing boards, and only can use the writing boards as drafts or graffiti.

Disclosure of Invention

One of the purposes of the invention is to solve the problem that the writing and drawing works cannot be reserved by the writing board in the prior art.

The second purpose of the present invention is to provide a method for retaining the engraving of the writing and drawing works on the writing board.

In order to achieve one of the purposes, the invention adopts the following technical scheme: a tablet comprising a frame, the frame comprising: a magnetic pen connected to the frame; a magnetic word erasing eraser connected with the frame; the display panel is connected with one end face of the frame, and the lower end face of the display panel is provided with an electrostatic film; a grid arranged below the display panel; magnet balls distributed in the grid; the paper groove is communicated with the grids, the height of the paper groove is lower than the total height of the thickness of the display panel and the diameter of the magnet ball, and the height of the paper groove is higher than the diameter of the magnet ball attached to the bottom of the grids; the sliding strong magnet is positioned at one end of the display panel and is in sliding connection with the frame, the sliding strong magnet is communicated with the grid, the sliding strong magnet is provided with an imprinting object, and the height of the imprinting object is lower than that of the paper groove.

In the above technical solution, in the embodiment of the present invention, the S pole of the magnetic pen is firstly used to write and draw on the display panel, and in the writing and drawing process, the N pole of the magnetic ball in the grid is adsorbed on the electrostatic film, so as to form the calligraphy and painting works on the display panel. Next, the paper is put into a paper slot. Then, the sliding strong magnet is moved, the sliding strong magnet absorbs the magnetic balls adsorbed on the electrostatic film, the magnetic balls adsorbed on the electrostatic film move towards paper, then the paper is wrapped to impact an engraved object, and the engraved object of the written and drawn works is reserved. And finally, taking out the paper to finish the engraving.

Further, in the embodiment of the invention, the magnetic pen has a tapered S-pole pen head, and the pen tail of the magnetic pen is made of a non-magnetic material and wraps the N-pole part of the magnetic pen. On the one hand, the S utmost point nib of toper gives user visual indication, prevents that the user from using the tail to write when drawing, causes the N utmost point of magnet ball to face down, slides at the strong magnet of slip too fast and absorbs the magnet ball when, and the magnet ball atress is too late to roll the S utmost point, causes the seal engraving difficult problem to improve. On the other hand, the N pole part of the magnetic pen is wrapped by the non-magnetic material, so that the N pole of the magnetic pen is far away from the display panel, the attraction force on the magnetic ball is reduced, and the situation that a user is not used properly and the difficulty is caused in subsequent marking work is prevented.

Further, in the embodiment of the invention, the frame further comprises a limiting groove and a limiting plate, the limiting groove is communicated with the grid, the height of the limiting groove is lower than that of the sliding strong magnet, and the limiting plate is clamped at one end of the frame. When needing the seal, take off the limiting plate and put into the spacing groove, when preventing that the strong magnet that slides from removing, the magnet ball that is in the net bottom is siphoned away by the strong magnet that slides, leads to unable realization seal many times.

Further, in the embodiment of the present invention, the display panel is transparent. The loss condition inside the writing board is convenient to observe, and incomplete waste paper of inscription is prevented.

Further, in the embodiment of the invention, the grid bottom comprises a weak magnetic body, the weak magnetic body is fixed on the grid bottom, the S pole of the weak magnetic body faces upwards, the N pole of the weak magnetic body faces downwards, and the magnetic strength of the weak magnetic body is weaker than that of the magnetic pen. The S pole of the weak magnetic magnet and the S pole of the magnet ball are mutually repelled, the magnet ball is forced to roll, the S pole of the magnet ball faces upwards, the N pole of the magnet ball faces downwards and is adsorbed by the weak magnetic magnet, advantageously, the magnet ball at the bottom of the grid and the magnet ball on the electrostatic film are repelled by the same poles, so that the two parties tend to be more stable, the magnet ball is not easy to move due to factors such as vibration or when the writing board is not positioned on a horizontal line, the integrity of written and drawn works is influenced, and the integrity of the engraving and keeping is influenced.

Further, in the embodiment of the present invention, the N pole of the sliding strong magnet faces upward, and the S pole of the sliding strong magnet faces downward.

Further, in the embodiment of the present invention, the frame further includes a plurality of mold grooves, each of which has a different shape.

Further, in the embodiment of the present invention, N of the magnet ball is a non-transparent color, and S of the magnet ball is a transparent color.

Furthermore, in the embodiment of the invention, the grid is in a state of being broken into an upper layer and a lower layer, the display panel is also provided with a stabilizing column, an upper toothed column, a lower toothed column and a lifting spring, the stabilizing column is fixedly connected with the frame, and the upper toothed column is provided with a through groove matched with the stabilizing column; the bottom end of the lower tooth column is provided with a connecting plate, the lower tooth column and the connecting plate are provided with a chute matched with the stabilizing column, the stabilizing column is positioned in the chute, one end of the lifting spring is connected with the connecting plate, and the other end of the lifting spring is connected with the inside of the frame. Because the magnet ball is in the net, and paper groove and slip strong magnet have all communicated the net, this just causes the distance that the part breaks off about the net great, is in when unbalanced making the magnet ball scurry in a plurality of nets each other very probably, causes and writes that drawing and stamp the time incomplete. In order to prevent the situation, the embodiment of the invention adopts the pressing of the display board, so that the upper tooth column supports against the lower tooth column to move downwards, the sliding groove of the lower tooth column vertically moves downwards along the stabilizing column, when the sliding groove of the lower tooth column moves out of the stabilizing column, the display board is loosened, the tooth mouth of the lower tooth column is clamped with the stabilizing column again under the bias action of the lifting spring, the descending work is completed, the distance between the upper part and the lower part of the grid is reduced, so that the magnet balls cannot be mixed in a plurality of grids, and the user can be ensured to normally write and draw on the display board.

Furthermore, in the embodiment of the present invention, the frame further includes a paper pressing strip, the paper pressing strip is an elastic body, the thickness of the paper pressing strip is adapted to the paper slot, the paper pressing strip has a gap, and the height of the gap is smaller than the thickness of the paper. Because the paper is soft, in order to prevent the paper from separating from the paper slot due to the self gravity of the paper or the impact force and the gravity of the magnet ball when the paper is placed in the paper slot, so that the paper cannot be engraved or cannot be taken out after the engraving is finished, the embodiment of the invention adopts the paper pressing strip to press the paper, firstly, the slit is pulled to open the slit, then the paper is placed in the slit, then, the paper is pressed by the elasticity of the paper pressing strip, and finally, the paper pressing strip is placed in the paper slot.

Further, in the embodiment of the present invention, the imprinting object is inkpad.

The invention has the beneficial effects that:

firstly, the embodiment of the invention adopts a sliding strong magnet to absorb the magnet ball under the display panel, the magnet ball impacts the paper to enable the paper to be in close contact with the imprinting object for imprinting, and the writing and drawing works of the writing board are retained through the paper.

Secondly, the embodiment of the invention adopts the magnetic erasing eraser or the magnetic pen to coat a large area on the display panel, and the magnetic ball on the paper is adsorbed again, thereby not only finishing the engraving, but also ensuring that the engraved written and drawn works can be remained on the display panel after the engraving.

In order to achieve the second purpose, the invention adopts the following technical scheme: a method for keeping the engraving of the writing and drawing works on a writing board comprises the following steps:

writing, when a user writes on the display panel by using the S pole of the magnetic pen, the S pole of the magnetic ball in the grid is rolled by repulsive force, and the N pole of the magnetic ball is directly adsorbed on the electrostatic film of the display panel by the S pole of the magnetic pen to form calligraphy and painting;

when the paper slot is lifted, a user presses the display panel, the upper tooth column abuts against the lower tooth column to move downwards to enable the tooth mouth of the lower tooth column to be separated from the stable column, then the user loosens the display panel, the lower tooth column abuts against the stable column under the bias action of the lifting spring, the inclined surface of the lower tooth column abuts against the stable column to guide the stable column to the sliding slot, the lower tooth column abuts against the upper tooth column to move upwards, the paper slot is communicated with the grid, and the lifting work is completed;

pressing paper, namely opening a gap of a paper pressing strip, putting the paper into the gap, and pressing the paper tightly by using the elasticity of the paper pressing strip;

placing the paper into a paper groove, and placing the paper pressing strip into the paper groove;

limiting, namely taking the limiting plate down from the frame, and putting the limiting plate into the limiting groove;

the method comprises the following steps of (1) engraving, moving a sliding strong magnet, wherein the S pole of a magnet ball adsorbed on an electrostatic film is subjected to strong attraction, the magnet ball moves downwards to extrude paper, and the paper is impacted to an engraving object (inkpad) of the sliding strong magnet by the strong attraction, so that the paper engraves a work generated by writing and drawing;

resetting, namely adsorbing the magnetic balls on the paper again by using the S pole of the character erasing eraser;

fetching the paper pressing strips and the limiting plate, and reconnecting the limiting plate to the frame;

descending, the user presses the display panel, goes up the column gear and supports the column gear down and move down, and the spout of column gear down moves perpendicularly downwards along stabilizing the post, and when the spout of column gear moved out stabilized column down, the user loosened the display panel, and the column gear was again block stabilized column under the biasing effect of lifting spring down, accomplished descending work, made the user can normally write and draw on the display panel.

Further, in the present embodiment, the S-pole of the weak magnet flips the S-pole of the magnet ball to an upward position before writing.

Further, in the embodiment of the invention, during the imprinting process, when the sliding strong magnet moves, the limiting plate blocks the magnet ball at the bottom of the grid to move upwards.

Drawings

FIG. 1 is a three-dimensional schematic view of a tablet according to an embodiment of the present invention

FIG. 2 is a three-dimensional view of a magnetic pen and magnetic eraser according to an embodiment of the invention

FIG. 3 is another three-dimensional schematic view of a tablet according to an embodiment of the present invention

FIG. 4 is a three-dimensional schematic view of a sliding ferromagnetic body according to an embodiment of the present invention

FIG. 5 is a schematic structural diagram of a tablet according to an embodiment of the present invention

FIG. 6 is a three-dimensional schematic diagram of a display panel according to an embodiment of the present invention

FIG. 7 is a three-dimensional schematic view of upper and lower tooth posts according to an embodiment of the present invention

FIG. 8 is a schematic diagram of the movement of the tablet according to the embodiment of the present invention

FIG. 9 is a schematic diagram of the movement of the tablet structure according to the embodiment of the present invention

FIG. 10 is a three-dimensional schematic view of a paper pressing strip according to an embodiment of the present invention

FIG. 11 is an enlarged view of a portion A of FIG. 10

In the attached drawings

1. Display panel 2, magnetic pen 3, S-pole pen head

4. Magnetic eraser 5, frame 6 and weak magnetic body

7. Magnet ball 8, grid 9, sliding strong magnet

901. Imprinting object 902, sliding ferromagnetic N-pole 903, and sliding ferromagnetic S-pole

10. Paper slot 11, upper tooth post 12 and lower tooth post

1201. Connecting plate 13, lifting spring 14 and stabilizing column

15. Limiting plate 1501, limiting groove 16 and die groove

17. Paper pressing strip 1701 and gap

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clear and fully described, embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of some embodiments of the invention and are not limiting of the invention, and that all other embodiments obtained by those of ordinary skill in the art without the exercise of inventive faculty are within the scope of the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "a," "an," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

For the purposes of simplicity and explanation, the principles of the embodiments are described by referring mainly to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. But it is obvious. To one of ordinary skill in the art, the embodiments may be practiced without limitation to these specific details. In some instances, well-known methods and structures have not been described in detail so as not to unnecessarily obscure the embodiments. In addition, all embodiments may be used in combination with each other.

The first embodiment is as follows:

as shown in fig. 2, 8 and 9, a tablet includes a frame 5, where the frame 5 includes, from bottom to top: the device comprises a grid 8, a magnetic ball 7, a sliding strong magnet 9, a paper slot 10, a display board 1, a magnetic pen 2 and a magnetic erasing eraser 4. The magnetic pen 2 is connected with the frame 5, the magnetic erasing eraser 4 is provided with an N pole and an S pole, the display panel 1 is connected with the upper end face of the frame 5, the lower end face of the display panel 1 is provided with an electrostatic film, the grids 8 are arranged below the display panel 1, the magnet balls 7 are distributed in the grids 8, the paper grooves 10 are communicated with the grids 8, the height of the paper grooves 10 is lower than the total height of the thickness of the display panel 1 and the diameter of the magnet balls 7, the height of the paper grooves 10 is higher than the diameter of the magnet balls 7 attached to the bottom of the grids 8, the sliding strong magnet 9 is positioned at one end of the display panel 1, the sliding strong magnet 9 is in sliding connection with the frame 5, the sliding strong magnet 9 is communicated with the grids.

Firstly, a user writes and draws on the display panel 1 by using the S pole of the magnetic pen 2, and during the writing and drawing process, the N pole of the magnetic ball 7 in the grid 8 is adsorbed on the electrostatic film, and calligraphy and painting works are formed on the display panel 1. Next, the user puts the paper into the paper slot 10. Then, the user moves the sliding strong magnet 9, the sliding strong magnet 9 sucks the magnetic ball 7 adsorbed on the electrostatic film, the magnetic ball 7 adsorbed on the electrostatic film moves towards the paper, and then the paper is wrapped to impact on the engraved object 901, so that the engraved image of the written and drawn work is reserved. And finally, taking out the paper by the user to finish the engraving.

Specifically, as shown in fig. 2, the magnetic pen 2 has a tapered S-pole pen tip 3, and the pen tail of the magnetic pen 2 is made of a non-magnetic material and covers the N-pole portion of the magnetic pen 2. On the one hand, the visual indication is given to the user by the conical S-pole pen point 3, the N pole of the magnet ball 7 is downward when the user uses the pen tail to write and draw, and when the sliding strong magnet 9 slides and absorbs the magnet ball 7 too fast, the magnet ball 7 is forced to not roll to the S pole, so that the difficulty in engraving is improved. On the other hand, the N pole part of the magnetic pen 2 is wrapped by a non-magnetic material, so that the N pole of the magnetic pen 2 is far away from the display panel 1, the suction force to the magnetic ball 7 is reduced, and the situation that a user is not used properly and the difficulty is caused in the subsequent engraving work is prevented.

Specifically, as shown in fig. 3 and 9, the frame 5 further includes a limiting groove 1501 and a limiting plate 15, the limiting groove 1501 communicates with the grid 8, the height of the limiting groove 1501 is lower than that of the sliding strong magnet 9, and the limiting plate 15 is mounted on and clamped at one end of the frame 5. When needing the seal, take down limiting plate 15 and put into spacing groove 1501, when preventing that the strong magnet 9 that slides from removing, be in the magnet ball 7 of net 8 bottom and be siphoned away by the strong magnet 9 that slides, lead to unable realization many times seal.

Specifically, the display panel 1 is transparent. N of the magnet ball 7 is a non-transparent color, and S of the magnet ball 7 is a transparent color. The S pole of the magnet ball 7 and the display panel 1 are colored to prevent the display panel 1 from being colored unnecessarily, giving the user an illusion that the display panel 1 is not clean. The magnetic ball 7 has a non-transparent color, so that when a user writes on the display panel 1, the display panel 1 can display lines desired by the user, and the color of the lines is in sharp contrast with the transparent color of the display panel 1, thereby providing visual indication for the user.

Specifically, as shown in fig. 4, 5 and 9, the bottom of the grid 8 comprises a weak magnetic body 6, the weak magnetic body 6 is fixed at the bottom of the grid 8, the S pole of the weak magnetic body 6 faces upwards, the N pole of the weak magnetic body 6 faces downwards, and the magnetic strength of the weak magnetic body 6 is weaker than that of the magnetic pen 2. The sliding ferromagnetic N-pole 902 faces upward and the sliding ferromagnetic S-pole 903 faces downward. The S utmost point of weak magnetic body 6 and the S utmost point of magnet ball 7 repel each other, and magnet ball 7 atress rolls for the S utmost point of magnet ball 7 is up, and the N utmost point of magnet ball 7 is adsorbed by weak magnetic body 6 down, and on the one hand, when slip strong magnet 9 carries out the quick slip, slip strong magnet N utmost point 902 can directly absorb magnet ball 7, and on the other hand, slip strong magnet S utmost point 903 is repelled with the S utmost point of magnet ball 7, prevents that magnet ball 7 from being adsorbed by slip strong magnet 9.

Specifically, as shown in fig. 1 and 8, the frame 5 further includes a plurality of mold grooves 16, each having a different shape.

Specifically, as shown in fig. 6 and 7, the grid 8 is broken into an upper and a lower two-layer state, the display panel 1 further has a stabilizing column 14, an upper toothed column 11, a lower toothed column 12, and a lifting spring 13, the stabilizing column 14 is fixedly connected to the frame 5, and the upper toothed column 11 has a through slot matched with the stabilizing column 14; the bottom end of the lower toothed column 12 is provided with a connecting plate 1201, the lower toothed column 12 and the connecting plate 1201 are provided with sliding grooves matched with the stabilizing columns 14, the stabilizing columns 14 are positioned in the sliding grooves, one end of the lifting spring 13 is connected with the connecting plate 1201, and the other end of the lifting spring 13 is connected with the inside of the frame 5. As shown in fig. 8 and 9, since the magnet ball 7 is in the mesh 8 and the paper slot 10 and the sliding strong magnet 9 are both connected to the mesh 8, the distance between the upper and lower parts of the mesh 8 is relatively large, and the magnet ball 7 may move in the mesh 8, which may result in incomplete writing and engraving. To prevent this, as shown in fig. 1 and 5, the embodiment of the present invention presses the display panel 1, so that the upper tooth post 11 moves downward against the lower tooth post 12, the sliding slot of the lower tooth post 12 moves downward vertically along the stabilizing post 14, when the sliding slot of the lower tooth post 12 moves out of the stabilizing post 14, the display panel 1 is released, the tooth mouth of the lower tooth post 12 re-engages with the stabilizing post 14 under the bias of the lifting spring 13, the lowering operation is completed, the distance between the upper and lower parts of the grid 8 is reduced, so that the magnetic balls 7 do not move in a disorder among the grids 8, and the user can be ensured to write and draw on the display panel 1 normally.

Specifically, as shown in fig. 10 and 11, the frame 5 further includes a paper pressing strip 17, the paper pressing strip 17 is an elastic body, the thickness of the paper pressing strip 17 is adapted to the paper slot 10, the paper pressing strip 17 has a slit 1701, and the spatial height of the slit 1701 is smaller than the thickness of the paper. Because the paper is soft, in order to prevent the paper from being separated from the paper slot 10 due to the self gravity of the paper or the impact force and the gravity of the magnet balls 7 when the paper is placed in the paper slot 10, so that the paper cannot be engraved or cannot be taken out after the engraving is finished, the embodiment of the invention adopts the paper pressing strip 17 to press the paper, firstly, the gap 1701 is pulled to open the gap 1701, then the paper is placed in the gap, then, the paper is pressed by the elasticity of the paper pressing strip 17, and finally, the paper pressing strip 17 is placed in the paper slot 10.

Specifically, as shown in fig. 4, the imprinting object 901 is inkpad.

The invention has the beneficial effects that:

firstly, in the embodiment of the present invention, the sliding strong magnet 9 is used to suck the magnet ball 7 under the display panel 1, the magnet ball 7 impacts the paper, so that the paper is in close contact with the imprinting object 901 for imprinting, and the writing and drawing of the writing board is retained by the paper.

Secondly, the embodiment of the invention adopts the magnetic erasing eraser 4 or the magnetic pen 2 to coat a large area on the display panel 1, and the magnetic ball 7 on the paper is adsorbed again, thereby not only finishing the engraving, but also ensuring that the engraved written and drawn works can be remained on the display panel 1 after the engraving.

Example two:

a method for keeping the engraving of the writing and drawing works on a writing board comprises the following steps:

writing, when a user writes a picture on the display panel 1 by using the S pole of the magnetic pen 2, the S pole of the magnetic ball 7 in the grid 8 is turned over by a repulsive force, and the N pole of the magnetic ball 7 is directly adsorbed to the electrostatic film of the display panel 1 by the S pole of the magnetic pen 2 to form a calligraphy and a painting;

when the user presses the display panel 1, the upper tooth post 11 abuts against the lower tooth post 12 to move downwards, so that the tooth mouth of the lower tooth post 12 is separated from the stabilizing post 14, then the user loosens the display panel 1, the lower tooth post 12 abuts against the stabilizing post 14 under the bias action of the lifting spring 13, the inclined surface of the lower tooth post 12 abuts against the stabilizing post 14, the stabilizing post 14 is guided into the sliding chute, the lower tooth post 12 abuts against the upper tooth post 11 to move upwards, so that the paper chute 10 is communicated with the grid 8, and the lifting work is completed;

pressing paper, namely, opening a gap 1701 of a paper pressing strip 17, putting the paper into the gap 1701, and pressing the paper tightly by the elasticity of the paper pressing strip 17;

placing the paper into the paper slot 10, and placing the paper pressing strip 17 into the paper slot 10;

limiting, namely taking the limiting plate 15 down from the frame 5, and placing the limiting plate 15 into the limiting groove 1501;

engraving, namely moving the sliding strong magnet 9, wherein the S pole of the magnet ball 7 adsorbed on the electrostatic film is strongly attracted, the magnet ball 7 moves downwards to extrude paper, and the paper is strongly impacted to an engraving object 901 (inkpad) of the sliding strong magnet 9 by force, so that the paper can engrave a work generated by writing and drawing;

resetting, namely adsorbing the magnetic ball 7 on the paper again by using the S pole of the character erasing eraser;

fetching, namely taking out the paper pressing strip 17 and the limiting plate 15, and reconnecting the limiting plate 15 into the frame 5;

and (3) descending, the user presses the display panel 1, the upper toothed column 11 abuts against the lower toothed column 12 to move downwards, the sliding groove of the lower toothed column 12 vertically moves downwards along the stabilizing column 14, when the sliding groove of the lower toothed column 12 moves out of the stabilizing column 14, the user loosens the display panel 1, the tooth mouth of the lower toothed column 12 is clamped with the stabilizing column 14 again under the bias action of the lifting spring 13, the descending work is finished, and the user can normally write and draw on the display panel 1.

Specifically, before writing, the S pole of the weak magnetic magnet 6 flips the S pole of the magnet ball 7 to an upward position.

Specifically, during the imprinting process, when the sliding strong magnet 9 moves, the limiting plate 15 blocks the magnet ball 7 at the bottom of the grid 8 to move upwards.

Although the illustrative embodiments of the present invention have been described above to enable those skilled in the art to understand the present invention, the present invention is not limited to the scope of the embodiments, and it is apparent to those skilled in the art that all the inventive concepts using the present invention are protected as long as they can be changed within the spirit and scope of the present invention as defined and defined by the appended claims.

Claims

1. A tablet comprising a frame, the frame comprising:

a magnetic pen connected to the frame;

the magnetic word erasing eraser is connected with the frame;

the display panel is connected with one end face of the frame, and the lower end face of the display panel is provided with an electrostatic film;

a grid arranged under the display panel;

magnet balls distributed in the mesh;

the paper groove is communicated with the grids, the height of the paper groove is lower than the total height of the thickness of the display plate and the diameter of the magnetic ball, and the height of the paper groove is higher than the diameter of the magnetic ball attached to the bottom of the grids;

the sliding strong magnet is positioned at one end of the display panel and is in sliding connection with the frame, the sliding strong magnet is communicated with the grid, the sliding strong magnet is provided with an imprinting object, and the height of the imprinting object is lower than that of the paper groove.

2. The tablet of claim 1 wherein the magnetic pen has an S-pole tip and the magnetic pen has a non-magnetic tail surrounding the N-pole portion of the magnetic pen.

3. A tablet according to claim 1, wherein the frame further comprises:

the limiting groove is communicated with the grid, and the height of the limiting groove is lower than that of the sliding strong magnet;

and the limiting plate is clamped at one end of the frame.

4. A tablet according to claim 1 wherein the display panel is a transparent color.

5. A tablet according to claim 1, wherein the grid bottom comprises:

the weak magnetic body is fixed at the bottom of the grid, the S pole of the weak magnetic body faces upwards, the N pole of the weak magnetic body faces downwards, and the magnetic strength of the weak magnetic body is weaker than that of the magnetic pen.

6. The tablet of claim 1 wherein the N pole of the sliding strong magnet faces upward and the S pole of the sliding strong magnet faces downward.

7. A tablet according to claim 1, wherein the frame further comprises:

a plurality of mold slots, each of the mold slots having a different shape.

8. A tablet according to claim 1, wherein the magnet ball has a non-transparent color for N and a transparent color for S.

9. A tablet according to claim 1, wherein the grid is broken into upper and lower two layers, the display panel further having:

a stabilizing post fixedly connected to the frame;

the upper tooth column is provided with a through groove matched with the stabilizing column;

the bottom end of the lower tooth column is provided with a connecting plate, the lower tooth column and the connecting plate are provided with sliding grooves matched with the stabilizing columns, and the stabilizing columns are located in the sliding grooves;

and one end of the lifting spring is connected with the connecting plate, and the other end of the lifting spring is connected with the inside of the frame.

10. A tablet according to claim 1 wherein the inscription is inkpad.