CN212267084U

CN212267084U - Dust-proof magnetic blackboard for teachers

Info

Publication number: CN212267084U
Application number: CN202021038172.5U
Authority: CN
Inventors: 刘静; 孟凡烨
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-09
Filing date: 2020-06-09
Publication date: 2021-01-01
Anticipated expiration: 2030-06-09

Abstract

The utility model discloses a teacher is with preventing raise dust magnetism blackboard, concretely relates to teaching aid field, including blackboard body, blackboard body one side is equipped with the blackboard eraser, blackboard body one side activity is equipped with writes the pen, blackboard body one side is equipped with display terminal, be equipped with the data transmission line between display terminal and the blackboard body. The utility model uses the blackboard body, the blackboard eraser and the writing pen in cooperation, the writing pen is used for writing on the semi-transparent plate, the white color development piece on the writing pen moving route is driven to directly contact with the semi-transparent plate according to the principle that the opposite poles of the magnets attract each other between the S pole of the third magnet and the N pole of the first magnet, and the light transmission distance of the semi-transparent plate is reached at the position, so that a white writing path is formed on the route; the protective pad is used for wiping the display area, and the N pole of the second magnet and the N pole of the first magnet are of the same magnetic pole, so that the display core moves and resets in the movable through hole, and no chalk residue is formed by magnetic adsorption or repulsion.

Description

Dust-proof magnetic blackboard for teachers

Technical Field

The utility model relates to a teaching aid technical field, more specifically say, the utility model relates to a teacher is with preventing raise dust magnetism blackboard.

Background

The blackboard is a plane which can be repeatedly written by chalk, and the board surface is hard and is mainly used for teaching. The blackboard is generally made of wood board or ground glass, and can be written on by using specific writing materials such as chalk. Mostly black, greenish black, white or beige. The conventional blackboard at present adopts the chalk to write more at the teaching in-process, uses the blackboard eraser to clean again, nevertheless cleans the in-process, can produce a large amount of chalk dust, not only makes the teacher inhale the respiratory tract easily and causes uncomfortable sense, but also can increase student's cleaning work volume.

Disclosure of Invention

In order to overcome the above-mentioned defect of prior art, the embodiment of the utility model provides a teacher is with preventing raise dust magnetic blackboard, the utility model aims to solve the technical problem that: how to solve the problem of chalk powder generated by blackboard erasing in the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: a dust-raising-prevention magnetic blackboard for teachers comprises a blackboard body, wherein a blackboard eraser is arranged on one side of the blackboard body, a writing pen is movably arranged on one side of the blackboard body, a display terminal is arranged on one side of the blackboard body, and a data conducting line is arranged between the display terminal and the blackboard body;

the blackboard body comprises a main body shell, a semi-transparent plate is fixedly arranged on one side of the main body shell, an inner core plate is arranged on one side of the light-transmitting plate, the inner core plate is fixedly connected with the main body shell, a plurality of movable through holes are uniformly distributed in the inner core plate, the movable through holes longitudinally penetrate through the inner core plate, a display core is arranged in each movable through hole, a rear support plate is arranged on one side of the inner core plate, and the rear support plate is fixedly connected with the main body shell;

the display core comprises a first magnet N pole and a first magnet S pole, the first magnet N pole and the first magnet S pole are integrally formed, the first magnet N pole is arranged at the end close to the semi-transparent light plate, a color development sheet is fixedly arranged at one end of the first magnet N pole, and a conducting sheet is fixedly arranged at one end of the first magnet S pole;

the blackboard eraser comprises a shell, a fixed sucker is fixedly arranged on the outer wall of the shell, a second magnet S pole and a second magnet N pole are arranged in an inner cavity of the shell, the second magnet N pole and the second magnet S pole are integrally formed, a protective pad is arranged on the outer side of the second magnet N pole, and the edge of the protective pad is fixedly connected with the shell;

the writing pen comprises a pen container, a storage cavity is arranged inside the pen container, a limiting spring and a magnetic column are arranged inside the storage cavity, the magnetic column comprises a third magnet S pole and a third magnet N pole, the third magnet N pole and the third magnet S pole are integrally formed, a connector is arranged on one side of the pen container, and a protective block is fixedly arranged at one end, far away from the pen container, of the connector.

In a preferred embodiment, the outer diameters of the limiting spring and the magnetic column are smaller than the inner diameter of the containing cavity, and the connector is in threaded connection with the pen container.

In a preferred embodiment, the cross-sectional shapes of the movable through hole and the display core are regular hexagons, and the difference between the depths of the movable through hole and the display core is not less than 1.5 cm.

In a preferred embodiment, the semi-transparent plate is provided as an acrylic plate having a black color and a light transmission distance of not more than 1cm, the color developing sheet is made of a white polyethylene material, and the conductive sheet is made of a brass material.

In a preferred embodiment, the fixed suction cup and the protection block are both made of rubber materials, and the protection pad is made of cotton cloth.

In a preferred embodiment, a placement groove is formed at the joint of the main body shell and the writing pen, and the outer diameter of the writing pen is smaller than the inner diameter of the placement groove.

In a preferred embodiment, the rear carrier includes a circuit board, and two conductive points are fixed on the circuit board corresponding to each movable through hole.

In a preferred embodiment, the display terminal is configured as a notebook/PC, and the display terminal is in signal connection with the circuit board through a data wire.

The utility model discloses a technological effect and advantage:

1. the utility model uses the blackboard body, the blackboard eraser and the writing pen in cooperation, the writing pen is used for writing on the semi-transparent plate, the white color development piece on the writing pen moving route is driven to directly contact with the semi-transparent plate according to the principle that the opposite poles of the magnets attract each other between the S pole of the third magnet and the N pole of the first magnet, and the light transmission distance of the semi-transparent plate is reached at the position, so that a white writing path is formed on the route; the protective pad is used for wiping the display area, the second magnet N pole and the first magnet N pole are of the same magnetic pole, the display core moves and resets in the movable through hole, and the chalk powder is not generated because writing and scratching are both formed by magnetic adsorption or repulsion and no chalk residue exists, so that the problem of dust emission of the chalk powder caused by blackboard writing is solved;

2. the utility model discloses a back support plate and display terminal cooperation are used, the teacher carries out the blackboard-writing process at blackboard body before, because of the conducting strip contact of corresponding position on direct and the circuit board of conducting strip, the conduction through data wire can be at display terminal no control signal's change, and when the teacher carries out the blackboard-writing, the part shows that the core position removes, the conducting strip that should show the core corresponds breaks away from with electrically conductive point, there is the change of signal of telecommunication, the circuit board will change the signal and transmit to display terminal through data wire, with the blackboard-writing in-step with the information storage on the blackboard body to display terminal in, realize information storage and broadcast, the student of being convenient for carries out the blackboard-writing review and the warm study of knowledge point after class.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the sectional structure of the blackboard body of the present invention.

Fig. 3 is a schematic view of the display core structure of the present invention.

Fig. 4 is a schematic view of the sectional structure of the blackboard eraser of the present invention.

Fig. 5 is a schematic diagram of the explosion structure of the writing pen of the present invention.

Fig. 6 is a schematic diagram of the inner core plate structure of the present invention.

Fig. 7 is a schematic view of the structure of the rear carrier of the present invention.

The reference signs are: 1 blackboard body, 11 main body shell, 12 translucent plate, 13 inner core board, 14 movable through holes, 15 display core, 151 first magnet N pole, 152 first magnet S pole, 153 color rendering piece, 154 conducting piece, 16 rear carrier plate, 161 circuit board, 162 conducting point, 2 blackboard eraser, 21 shell, 22 fixed sucker, 23 second magnet S pole, 24 second magnet N pole, 25 protective pad, 3 writing pen, 31 pen container, 32 containing cavity, 33 spacing spring, 34 third magnet S pole, 35 third magnet N pole, 36 connector, 37 protective block, 4 display terminal, 5 data conducting wire.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a dust-proof magnetic blackboard for teachers, which comprises a blackboard body 1, wherein one side of the blackboard body 1 is provided with a blackboard eraser 2, one side of the blackboard body 1 is movably provided with a writing pen 3, one side of the blackboard body 1 is provided with a display terminal 4, and a data conducting wire 5 is arranged between the display terminal 4 and the blackboard body 1;

the blackboard body 1 comprises a main body shell 11, a semi-transparent plate 12 is fixedly arranged on one side of the main body shell 11, an inner core plate 13 is arranged on one side of the semi-transparent plate, the inner core plate 13 is fixedly connected with the main body shell 11, a plurality of movable through holes 14 are uniformly distributed in the inner core plate 13 in an arrayed manner, the movable through holes 14 longitudinally penetrate through the inner core plate 13, a display core 15 is arranged in each movable through hole 14, a rear support plate 16 is arranged on one side of the inner core plate 13, and the rear support plate 16 is fixedly connected with the main body shell 11;

the display core 15 comprises a first magnet N pole 151 and a first magnet S pole 152, the first magnet N pole 151 and the first magnet S pole 152 are integrally formed, the first magnet N pole 151 is arranged at the end close to the semi-transparent plate 12, a color development sheet 153 is fixedly arranged at one end of the first magnet N pole 151, and a conductive sheet 154 is fixedly arranged at one end of the first magnet S pole 152;

the blackboard eraser 2 comprises a shell 21, a fixed sucker 22 is fixedly arranged on the outer wall of the shell 21, a second magnet S pole 23 and a second magnet N pole 24 are arranged in the inner cavity of the shell 21, the second magnet N pole 24 and the second magnet S pole 23 are integrally formed, a protective pad 25 is arranged on the outer side of a third magnet N pole 35, and the edge of the protective pad 25 is fixedly connected with the shell 21;

writing pen 3 includes pen container 31, pen container 31 is inside to be equipped with and to accomodate cavity 32, it is inside to be equipped with spacing spring 33 and magnetism post to accomodate cavity 32, the magnetism post includes third magnet S utmost point 34 and third magnet N utmost point 35, third magnet N utmost point 35 and third magnet S utmost point 34 are integrated into one piece, pen container 31 one side is equipped with connector 36, pen container 31 one end is kept away from to connector 36 is fixed to be equipped with protection piece 37.

The limiting spring 33 and the outer diameter of the magnetic column are both smaller than the inner diameter of the storage cavity 32, the connector 36 is in threaded connection with the pen container 31, the cross sections of the movable through hole 14 and the display core 15 are both regular hexagons, the depth difference between the movable through hole 14 and the display core 15 is not smaller than 1.5cm, the semi-transparent plate 12 is arranged to be a black acrylic plate with the light transmission distance not larger than 1cm, the color development sheet 153 is made of white polyethylene materials, the fixed suction disc 22 and the protective block 37 are made of rubber materials, the protective pad 25 is arranged to be cotton cloth, a placing groove is formed in the joint of the main body shell 11 and the writing pen 3, and the outer diameter of the writing pen 3 is smaller than the inner diameter of the.

As shown in fig. 1 to 6, the embodiment specifically is as follows: before the blackboard body 1 is not written, because the translucent plate 12 made of acrylic plate material with the light transmission distance not greater than 1cm has the characteristic that the translucent plate 12 is black, the color is the same as that of a conventional blackboard, a user sequentially puts a limit spring 33 and a magnetic column into a containing cavity 32 (the end of an N pole 35 of a third magnet is ensured to be contacted with the limit spring 33), then the assembly of a writing pen 3 is completed through the threaded connection of a connector 36 and a pen container 31, the writing pen 3 is used for writing on the translucent plate 12, a protective block 37 made of rubber can avoid the scratch caused by the direct contact of the connector 36 and the translucent plate 12, a certain protection effect is achieved, and during the period, the display core 15 in a movable through hole 14 at the corresponding position on the moving route of the writing pen 3 is driven to move to the position of the translucent plate 12 according to the principle that the magnets attract each other, the white color developing sheet 153 directly contacts the translucent plate 12, and reaches the light transmitting distance of the translucent plate 12 at the position, thereby forming a white writing path on the route; when the writing pen 3 needs to be wiped, only force needs to be applied to the casing 21 to remove the attraction between the fixed suction cup 22 and the semi-transparent plate 12, then the protective pad 25 is used to wipe the display area, because the second magnet N pole 24 and the first magnet N pole 151 are of the same magnetic pole, the display core 15 moves and resets in the movable through hole 14 according to the principle that the magnetic opposite poles repel each other, so that the distance between the color developing sheet 153 and the semi-transparent plate 12 is greater than the light transmission distance of the semi-transparent plate 12, the semi-transparent plate 12 is black, the protective pad 25 can avoid the scratch caused by the direct contact between the casing 21 or the second magnet N pole 24 and the semi-transparent plate 12, when the writing pen 3 stops using, the writing pen can be inserted back into the corresponding placing groove of the main body casing 11, and the blackboard eraser 2 can be fixed to the position of the semi-transparent plate 12 through the fixed suction cup 22, which does not affect the normal writing board, and the scratch is formed by the magnetic attraction or repulsion, no chalk residue exists, so that no chalk powder is generated, and the problem of dust emission of the chalk powder caused by blackboard writing is avoided.

The conductive sheet 154 is made of brass material, the rear carrier 16 includes a circuit board 161, two conductive points 162 are fixedly disposed at positions of the circuit board 161 corresponding to each movable through hole 14, the display terminal 4 is a notebook/PC, and the display terminal 4 is in signal connection with the circuit board 161 through a data conductive line 5;

as shown in fig. 1-2 and 6-7, the embodiment is specifically as follows: before the teacher works on the blackboard with writing on the blackboard body 1, the conducting strip 154 is directly contacted with the conducting point 162 at the corresponding position on the circuit board 161, no control signal is changed at the display terminal 4 by the conduction of the data conducting wire 5, when the teacher works on the blackboard with writing on the blackboard, part of the display core 15 moves, the conducting strip 154 corresponding to the display core 15 is separated from the conducting point 162, the change of the electric signal exists, the circuit board 161 transmits the change signal to the display terminal 4 through the data conducting wire 5, and the information on the blackboard body 1 is stored in the display terminal 4 synchronously with the blackboard with writing, so that the information storage and playing are realized, and the student can conveniently review the blackboard writing after class and warm study of knowledge points.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a teacher is with preventing raise dust magnetism blackboard, includes blackboard body (1), its characterized in that: the blackboard eraser (2) is arranged on one side of the blackboard body (1), a writing pen (3) is movably arranged on one side of the blackboard body (1), a display terminal (4) is arranged on one side of the blackboard body (1), and a data conducting wire (5) is arranged between the display terminal (4) and the blackboard body (1);

the blackboard body (1) comprises a main body shell (11), a semi-transparent plate (12) is fixedly arranged on one side of the main body shell (11), an inner core plate (13) is arranged on one side of the semi-transparent plate, the inner core plate (13) is fixedly connected with the main body shell (11), a plurality of movable through holes (14) are uniformly distributed in the inner core plate (13), the movable through holes (14) longitudinally penetrate through the inner core plate (13), a display core (15) is arranged in the movable through holes (14), a rear support plate (16) is arranged on one side of the inner core plate (13), and the rear support plate (16) is fixedly connected with the main body shell (11);

the display core (15) comprises a first magnet N pole (151) and a first magnet S pole (152), the first magnet N pole (151) and the first magnet S pole (152) are integrally formed, the first magnet N pole (151) is arranged at the end close to the semi-transparent plate (12), a color development piece (153) is fixedly arranged at one end of the first magnet N pole (151), and a conducting piece (154) is fixedly arranged at one end of the first magnet S pole (152);

the blackboard eraser (2) comprises a shell (21), a fixed sucker (22) is fixedly arranged on the outer wall of the shell (21), a second magnet S pole (23) and a second magnet N pole (24) are arranged in the inner cavity of the shell (21), the second magnet N pole (24) and the second magnet S pole (23) are integrally formed, a protective pad (25) is arranged on the outer side of the second magnet N pole (24), and the edge of the protective pad (25) is fixedly connected with the shell (21);

writing pen (3) are including pen container (31), pen container (31) inside is equipped with accomodates cavity (32), it is equipped with spacing spring (33) and magnetism post to accomodate cavity (32) inside, the magnetism post includes third magnet S utmost point (34) and third magnet N utmost point (35), third magnet N utmost point (35) and third magnet S utmost point (34) are integrated into one piece, pen container (31) one side is equipped with connector (36), pen container (31) one end is kept away from in connector (36) is fixed and is equipped with protection piece (37).

2. A dust-proof magnetic blackboard for teachers according to claim 1, which is characterized in that: spacing spring (33) and magnetism post external diameter all are less than accomodate cavity (32) internal diameter, connector (36) and pen container (31) threaded connection.

3. A dust-proof magnetic blackboard for teachers according to claim 1, which is characterized in that: the cross-sectional shapes of the movable through hole (14) and the display core (15) are both regular hexagons, and the depth difference between the movable through hole (14) and the display core (15) is not less than 1.5 cm.

4. A dust-proof magnetic blackboard for teachers according to claim 3, characterized in that: the semi-transparent plate (12) is set to be a black acrylic plate with the light transmission distance not more than 1cm, the color development sheet (153) is made of white polyethylene material, and the conductive sheet (154) is made of brass material.

5. A dust-proof magnetic blackboard for teachers according to claim 1, which is characterized in that: fixed suction cup (22) and protection piece (37) are made by rubber materials, protection pad (25) set up to the cotton.

6. A dust-proof magnetic blackboard for teachers according to claim 1, which is characterized in that: the main body shell (11) and the connection part of the writing pen (3) are provided with a placing groove, and the outer diameter of the writing pen (3) is smaller than the inner diameter of the placing groove.

7. A dust-proof magnetic blackboard for teachers according to claim 1, which is characterized in that: the rear carrier plate (16) comprises a circuit board (161), and two conductive points (162) are fixedly arranged at the positions, corresponding to each movable through hole (14), of the circuit board (161).

8. A dust-proof magnetic blackboard for teachers according to claim 7, which is characterized in that: the display terminal (4) is set to be a notebook/PC, and the display terminal (4) is in signal connection with the circuit board (161) through a data conducting wire (5).