CN110767041A - Think political affairs instrument for education - Google Patents

Think political affairs instrument for education Download PDF

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Publication number
CN110767041A
CN110767041A CN201911206511.8A CN201911206511A CN110767041A CN 110767041 A CN110767041 A CN 110767041A CN 201911206511 A CN201911206511 A CN 201911206511A CN 110767041 A CN110767041 A CN 110767041A
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CN
China
Prior art keywords
erasing
rack
cover body
motor
plate body
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Granted
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CN201911206511.8A
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Chinese (zh)
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CN110767041B (en
Inventor
刘畅
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Chongqing Vocational Institute of Engineering
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Chongqing Vocational Institute of Engineering
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Priority to CN201911206511.8A priority Critical patent/CN110767041B/en
Publication of CN110767041A publication Critical patent/CN110767041A/en
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Publication of CN110767041B publication Critical patent/CN110767041B/en
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B19/00Teaching not covered by other main groups of this subclass
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43LARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L21/00Blackboard or slate cleaning devices

Abstract

The invention relates to the field of political thought teaching, in particular to a political thought education tool, which comprises a plate body and a box body, wherein the top of the box body is provided with an opening, the plate body is vertically and slidably connected in the box body, the bottom of the plate body is provided with a first magnet, the top of the box body is provided with a second magnet attracted with the first magnet, and the bottom of the box body is provided with a third magnet attracted with the first magnet; the bottom of the box body is provided with a rotating wheel. This scheme has realized the nimble removal of plate body, need not repeated blackboard writing, and easy operation is convenient.

Description

Think political affairs instrument for education
Technical Field
The invention relates to the field of ideological and political affairs teaching, in particular to a tool for ideological and political affairs education.
Background
Think political affairs teaching time, can use the blackboard to carry out the blackboard writing to make the student can in time obtain the content and the knowledge of teaching, guarantee the effect of teaching.
At present, a blackboard is usually fixed on a wall of a classroom, the blackboard cannot move, and a teacher may attend classes of different classes, so that the teacher attends to the classes of different classes in different classrooms, but the teacher possibly writes the same content on the blackboards of different classrooms, and thus, the repeated writing of the same content on the blackboards of different classrooms takes a certain time and is difficult to write repeatedly. In addition, when the content on the blackboard needs to be erased, a teacher needs to manually use the blackboard eraser to erase the content, the labor is wasted, and the erased chalk powder flies around and is sucked into the body, so that the blackboard eraser is not beneficial to the body.
Disclosure of Invention
The invention aims to provide a political thinking education tool, which is used for realizing flexible movement of a plate body.
In order to achieve the purpose, the technical scheme of the invention is as follows: a political thinking education tool comprises a plate body and a box body, wherein an opening is formed in the top of the box body, the plate body is vertically connected into the box body in a sliding mode, a first magnet is arranged at the bottom of the plate body, and a second magnet attracted with the first magnet is arranged at the top of the box body; the bottom of the box body is provided with a rotating wheel.
When the technical scheme is adopted, the plate body is the carrier of writing, when the plate body is used to needs, can pull out the plate body from the box body, the plate body stretches out from the opening at box body top, because the bottom of plate body is equipped with first magnet, the top of box body is equipped with the second magnet that attracts mutually with first magnet, consequently, the plate body stretches out the back from the opening at the top of box body, the first magnet of the bottom of plate body and the second magnet at box body top attract mutually, thereby fix the plate body, the plate body can not fall into the box body under the effect of dead weight like this, can make the plate body continuously be in the state of stretching out from the box body.
After the board body is stretched out, the content of thinking political affairs teaching is written on the board body for students to learn. After the teacher's teaching finishes, can push the plate body into the box body, the content of writing on the plate body is protected to the box body, can not make the writing of writing on the plate body rub off by external object. When needs are in the local teaching of difference, can promote the box body, because the bottom of box body is equipped with the pivoted wheel, so the box body of being convenient for removes to in removing other classrooms with the box body, then with the plate body take out from the box body can, like this when the same content of different classroom teaching, need not the repetition and write the same content, easy operation is convenient.
Further, the box body comprises a first cover body and a second cover body which are covered together, the plate body is vertically connected to the first cover body in a sliding mode, and the second cover body is provided with an erasing mechanism. Therefore, when the handwriting on the plate body needs to be cleared, the plate body is moved into the box body, then the handwriting on the plate body is cleared through the erasing mechanism, so that the handwriting on the plate body does not need to be manually cleared manually, labor is saved, and the operation is simple and convenient. In addition, when the handwriting on the board body is cleared, because the board body is positioned in the box body, the chalk powder which is cleared away is positioned in the box body, and the powder can not fly around, thereby avoiding people from sucking the chalk powder into human bodies and being beneficial to health.
Further, the erasing mechanism comprises a motor, a movable gear, an erasing gear, a first erasing rack and a second erasing rack, the erasing gear is a sector gear, the movable gear and the erasing gear are coaxially and fixedly connected to an output shaft of the motor, the first erasing rack and the second erasing rack are alternately meshed with the erasing gear, the first erasing rack and the second erasing rack are positioned on two sides of the erasing gear, a supporting piece is fixedly connected to the motor, the first erasing rack and the second erasing rack are transversely and slidably connected to the supporting piece, erasing blocks are fixedly connected to the first erasing rack and the second erasing rack, and a connecting piece is connected between the first erasing rack and the second erasing rack; the side of the second cover body facing the first cover body is provided with a 'return' shaped groove, the motor is connected in the groove in a sliding mode, the two sides of the groove are fixedly connected with a first fixed rack and a second fixed rack, the moving gear is meshed with the first fixed rack and the second fixed rack alternately, and two opposite corners of the groove are provided with elastic mechanisms used for pushing the motor to move transversely.
Therefore, the motor drives the erasing gear to rotate, the erasing gear is a sector gear, the erasing gear is alternately meshed with the first erasing rack and the second erasing rack, when the erasing gear is meshed with the first erasing rack, the erasing gear drives the first erasing rack to move, the first erasing rack drives the second erasing rack to move together through the connecting piece, the erasing blocks on the first erasing rack and the erasing blocks on the second erasing rack erase the handwriting on the board body, when the erasing gear rotates to be meshed with the second erasing rack, the erasing gear is not meshed with the first erasing rack any more, the erasing gear drives the second erasing rack to move reversely, the second erasing rack drives the first erasing rack to move reversely through the connecting piece, and the erasing blocks on the first erasing rack and the erasing blocks on the second erasing rack erase the handwriting on the board body reversely. Therefore, the transverse reciprocating movement of the first erasing rack and the second erasing rack is realized through the scheme, and the handwriting on the plate body can be erased repeatedly, so that the handwriting is erased more cleanly.
Meanwhile, when the motor rotates, the motor drives the moving gear to rotate, the moving gear is alternately meshed with the first fixed rack and the second fixed rack, when the moving gear is meshed with the first fixed rack, the moving gear rolls on the first fixed rack, so that the motor is driven to vertically move in the groove, the motor drives the first erasing rack and the second erasing rack to vertically move through the supporting piece, and therefore vertical erasing of the handwriting on the board body is achieved. When the motor is close to the end part of the groove, the motor extrudes the elastic mechanism, the elastic mechanism stores force, the motor is abutted against the inner wall of the groove at the moment, so the elastic mechanism cannot push the motor to move, when the motor completely moves to the end part of the groove, the side wall of the motor is not abutted against the side wall of the groove any more, the elastic mechanism releases elastic potential energy, the elastic mechanism pushes the other side of the groove of the motor, the moving gear is separated from the first fixed rack, the moving gear is meshed with the second fixed rack, the first fixed rack and the second fixed rack are arranged oppositely, so the moving gear moves reversely on the second fixed rack, the moving gear drives the motor to move reversely in the groove, the motor drives the first erasing rack and the second erasing rack to move vertically and reversely through the supporting piece, and therefore vertical reverse erasing of handwriting on the plate body is achieved. Then, after the motor moves to the end part of the groove again, the motor pushes the motor to move transversely under the action of another elastic mechanism, so that the moving gear is meshed with the first fixed rack again, the reciprocating motion is realized, the vertical reciprocating motion of the motor is realized, and the erasing block erases the handwriting on the board body vertically and reciprocally. Therefore, the vertical repeated erasing of the handwriting on the plate body is realized through the scheme, the erasing effect is better, and the handwriting is erased more cleanly.
To sum up, through this scheme, through transversely erasing repeatedly and vertically erasing repeatedly to the handwriting on the plate body and combining together for the handwriting on the plate body is erased cleaner, and the effect of erasing of handwriting is better.
Furthermore, the elastic mechanism comprises a wedge block and a pressure spring, a wedge block groove is formed in the second cover body, the wedge block is connected in the wedge block groove in a transverse sliding mode, and the pressure spring is located between the wedge block and the inner wall of the wedge block groove. Therefore, when the motor is close to the end part of the groove, the outer wall of the motor extrudes the wedge block, the wedge block moves into the wedge block groove by extrusion, the wedge block extrudes the pressure spring, and the pressure spring stores force. When the motor moves to the end part of the groove, the outer wall of the motor is not limited in the transverse direction any more by the transverse propping action force of the inner wall of the groove, the wedge block is extruded by the pressure spring and slides out of the wedge block groove, and the wedge block pushes the motor to move transversely, so that the movement of the moving gear between the first fixed rack and the second fixed rack is realized, and the moving gear is alternately meshed with the first fixed rack and the second fixed rack respectively.
Furthermore, a telescopic piece and a clamping piece group are connected between the first cover body and the second cover body. Therefore, the distance between the first cover body and the second cover body can be adjusted, when the content on the plate body needs to be repeatedly used, the distance between the first cover body and the second cover body can be increased, the telescopic piece extends, the erasing mechanism on the second cover body is far away from the side face of the plate body, and therefore when the plate body is pushed into the box body, the erasing mechanism cannot be in contact with the side face of the plate body, and the phenomenon that the erasing mechanism erases the handwriting on the plate body by mistake is avoided. When the handwriting on the plate body needs to be erased, the distance between the first cover body and the second cover body can be reduced, the telescopic piece shrinks, the second cover body drives the erasing mechanism to be close to the plate body, the erasing mechanism is attached to the side face of the plate body, and the erasing mechanism can be guaranteed to be capable of erasing the handwriting on the plate body. The clamping piece group is used for clamping the first cover body and the second cover body together, and when the first cover body and the second cover body are prevented from being close to each other, the first cover body and the second cover body are separated, so that the erasing mechanism can stably erase the plate body.
Further, fastener group is including the fixture block that is located the first lid outside and the cutting ferrule that is located the second lid outside, and the cutting ferrule joint is on the fixture block. From this, through the cutting ferrule card on the fixture block, realized that the stable lid of first lid and second lid is in the same place, first lid and second lid can not part easily.
Further, the small end of the wedge block is far away from the pressure spring, and the small end of the wedge block is provided with a vertical plane which is used for abutting against the outer wall of the motor. Therefore, when the motor moves to the end part of the groove, the wedge block can push the motor to move transversely, and the small end of the wedge block is a plane, so that the plane is more stable to abut against the side surface of the motor, the wedge block can be prevented from slipping with the motor, the wedge block can be guaranteed to move transversely, and the motor is further guaranteed to move to the other side from one side of the groove.
Furthermore, the extensible member is the telescopic link, all is equipped with the pole groove on the relative side of first lid and second lid, and the both ends of telescopic link are arranged in the pole groove. Therefore, the distance between the first cover body and the second cover body can be adjusted through the telescopic rod. The both ends of telescopic link are arranged in the pole groove, and the fixed ratio of telescopic link is more firm to when first lid and second lid closed together, the telescopic link can be retractable in the pole groove, makes first lid and the lid of second lid close inseparabler.
Furthermore, the number of the plate bodies is multiple, a plurality of cavities are arranged on the box body, and each plate body is respectively positioned in each cavity. From this, set up different cavity and plate body, can select appropriate plate body to carry out the blackboard writing according to the teaching condition of reality, the use of plate body is more nimble convenient like this.
Further, the number of chambers and the number of plates are two. The quantity of cavity and the quantity of plate body set up to two, can not occupy too much space, and the removal of box body is more convenient.
Drawings
FIG. 1 is a front sectional view of an educational tool for thinking of politics in example 1;
FIG. 2 is a top view of the box, i.e., a top view of the first cover and the second cover in close contact;
fig. 3 is a perspective view of the second cover in embodiment 2, mainly showing the structure of the side of the second cover facing the first cover;
FIG. 4 is a front view of FIG. 3;
FIG. 5 is a front view of the first erase rack, the second erase rack and the erase pinion;
fig. 6 is a cross-sectional view a-a of fig. 5.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the cleaning device comprises a first cover body 1, a wheel 2, a plate body 4, a first erasing rack 5, a second erasing rack 6, an erasing gear 7, a second cover body 8, a cavity 9, a groove 10, a first fixed rack 11, a second fixed rack 12, a motor 13, a supporting piece 14, a wedge block 15, a pressure spring 16, a moving gear 17, an erasing block 18, a clamping block 19 and a clamping sleeve 20.
Example 1
Substantially as shown in figures 1-2 of the accompanying drawings: an instrument for think political affairs education, including the box body, combine as shown in fig. 2, the box body includes first lid 1 and second lid 8, be connected with the extensible member (not shown in the figure) between first lid 1 and the second lid 8, the extensible member in this embodiment is the telescopic link, specifically, all be equipped with the pole groove on the downside of first lid 1 in fig. 2 and on the top side of second lid 8, the both ends of telescopic link all bond in the pole groove, so the distance between first lid 1 and the second lid 8 is adjustable, be the schematic diagram when first lid 1 and the second lid 8 hug closely in fig. 2, like this because the both ends of telescopic link are located the pole groove, when first lid 1 and the second lid 8 hug closely together, the telescopic link can shorten, the telescopic link is located the pole groove, thereby make first lid 1 and second lid 8 can hug closely. When the distance between the first cover body 1 and the second cover body 8 becomes larger, the telescopic rod becomes longer and comes out of the rod groove. Be equipped with fastener group between first lid 1 and the second lid 8, fastener group in this embodiment is including the fixture block 19 that is located the first lid 1 outside and the cutting ferrule 20 that is located the second lid 8 outside, and cutting ferrule 20 joint is on fixture block 19, and when first lid 1 and second lid 8 hug closely the lid and close together like this, through blocking ferrule 20 on fixture block 19 to first lid 1 and second lid 8's firm lid has been realized closing.
Be equipped with two cavities 9 on the first lid 1 in this embodiment, the top of box body is equipped with the opening, and equal vertical sliding connection has plate body 4 in two cavities 9, and specific sliding connection mode is: the inner wall of the cavity 9 is provided with a vertical sliding groove, and two side ends of the plate body 4 are positioned in the sliding groove. The bottom of the plate body 4 is provided with a first magnet through a screw, and the top of the box body is fixedly provided with a second magnet which is attracted with the first magnet through a screw; the bottom of the box body is provided with wheels 2 through a pin roll. The second cover body 8 is provided with two erasing mechanisms for erasing the writing on the plate body 4, and the two erasing mechanisms can erase the writing on the two plate bodies 4 respectively. The erasing mechanism in this embodiment includes an erasing block and an air cylinder for driving the erasing block to move, the erasing block is vertically slidably connected to the inner wall of the second cover body 8, specifically, a vertical groove is formed in the inner wall of the second cover body 8, a protruding block is arranged on the erasing block, and the protruding block is located in the vertical groove. The cylinder passes through the fix with screw on the bottom of second lid 8, and the erasing block passes through the fix with screw on the top of cylinder pole, drives the vertical removal of erasing block through the cylinder is flexible like this, can be to the erasing of the writing on plate body 4 when erasing block vertical removal.
When plate body 4 is used to needs, can pull out plate body 4 from the box body, plate body 4 stretches out from the opening at box body top, because the bottom of plate body 4 is equipped with first magnet, the top of box body is equipped with the second magnet that attracts mutually with first magnet, consequently, plate body 4 stretches out the back from the opening at the top of box body, the first magnet of the bottom of plate body 4 and the second magnet at box body top attract mutually, thereby fix plate body 4, plate body 4 can not fall into the box body under the effect of dead weight like this, can make plate body 4 continuously be in the state of stretching out from the box body.
When the board body 4 is used, the board body 4 is pulled out from the corresponding cavity 9, and the thought teaching content is written on the board body 4 for students to learn. After the teacher's teaching finishes, can push into the box body with plate body 4, if the content on the plate body 4 needs used repeatedly, at this moment, before pushing into the box body with plate body 4, need part first lid 1 and second lid 8, distance grow between first lid 1 and the second lid 8, the telescopic link extension, when pushing into the box body with plate body 4 like this, plate body 4 is far away with second lid 8 distance, the handwriting on the plate body 4 can not be touchhed to the mechanism of erasing on the second lid 8, avoid the mistake to bump the handwriting on the plate body 4. Meanwhile, the box body formed by the first cover body 1 and the second cover body 8 protects the writing contents on the plate body 4, so that the writing on the plate body 4 cannot be rubbed off by an external object. When needs are in the local teaching of difference, can promote the box body, because the bottom of box body is equipped with pivoted wheel 2, so the box body of being convenient for removes to in removing other classrooms with the box body, then will have the plate body 4 of teaching content take out from the box body can, like this when the same content of different classroom teaching, need not the repetition and write the same content, easy operation is convenient.
When the teaching contents on the board 4 are not used, the first cover body 1 and the second cover body 8 can be closed, the first cover body 1 and the second cover body 8 are attached together, and the first cover body 1 and the second cover body 8 are clamped together through the clamping piece group. Plate 4 is pushed into cavity 9 while the writing on plate 4 is erased by the erasing mechanism on second cover 8. When the writing on the plate body 4 is removed, the removed chalk powder cannot fly around because the plate body 4 is positioned in the box body, so that people can be prevented from sucking the chalk powder into human bodies, and the chalk box is beneficial to health.
Example 2
As shown in fig. 3 to 6, the erasing mechanism in this embodiment includes a motor 13, a moving gear 17, the erasing gear 7, the first erasing rack 5 and the second erasing rack 6 are arranged on the erasing gear 7, the erasing gear 7 is a sector gear, the moving gear 17 and the erasing gear 7 are coaxially welded on an output shaft of the motor 13, the moving gear 17 is positioned between the erasing gear 7 and the motor 13, as shown in fig. 6, both the first erasing rack 5 and the second erasing rack 6 can be meshed with the erasing gear 7, the first erasing rack 5 and the second erasing rack 6 are positioned on two sides of the erasing gear 7, and the outer wall of the motor 13 is welded with a supporting piece 14, the supporting piece 14 in the embodiment is a supporting rod, the side wall of the first erasing rack 5, which is far away from the erasing gear 7, and the side wall of the second erasing rack 6, which is far away from the erasing gear 7, are transversely and slidably connected on the supporting: the first erasing rack 5 and the second erasing rack 6 are both provided with sliding grooves which are transversely arranged, and the supporting piece 14 is provided with a convex block which is positioned in the sliding grooves. Referring to fig. 6, the side of the first erasing rack 5 facing the first cover 1 and the side of the second erasing rack 6 facing the first cover 1 are both bonded with erasing blocks 18, the erasing blocks 18 in this embodiment are made of sponge, and a connecting member is connected between the end of the first erasing rack 5 and the end of the second erasing rack 6, and the connecting member in this embodiment is a connecting rod. When the first cover plate and the second cover plate are covered together, the wiping block 18 on the first wiping rack 5 and the wiping block 18 on the second wiping rack 6 are attached to the plate body 4.
The side of the second cover 8 facing the first cover 1 is provided with two "back" shaped grooves 10, the "back" shape in this embodiment refers to a rectangular ring shape. Two motors 13 are respectively connected in the corresponding grooves 10 in a sliding manner, that is, the motors 13 can slide in the grooves 10 in a rectangular track, and the specific sliding connection mode of the motors 13 and the grooves 10 is as follows: a rectangular sliding groove (not shown in the figure) is arranged at the bottom of the groove 10, and a convex block is arranged on the rear side wall of the motor 13 and is positioned in the sliding groove. Referring to fig. 4, a first fixed rack 11 and a second fixed rack 12 are fixed to both sides of the groove 10 by screws, the first fixed rack 11 and the second fixed rack 12 are disposed opposite to each other, the moving gear 17 is alternately engaged with the first fixed rack 11 and the second fixed rack 12, and elastic mechanisms are disposed at both opposite corners of the groove 10 (an upper right corner of the groove 10 and a lower left corner of the groove 10). The elastic mechanism in this embodiment includes a wedge block 15 and a pressure spring 16, a wedge block groove is provided on the second cover body 8, the wedge block 15 is transversely slidably connected in the wedge block groove, and the pressure spring 16 is located between the wedge block 15 and an inner wall of the wedge block groove. The small end of the wedge 15 is far away from the pressure spring 16, and the small end of the wedge 15 is provided with a vertical plane which is used for abutting against the outer wall of the motor 13, so that when the wedge 15 pushes the motor 13 to move transversely, the wedge 15 and the outer wall of the motor 13 cannot slide.
When the handwriting on the plate body 4 needs to be erased, the motor 13 is started, the motor 13 drives the erasing gear 7 to rotate, the erasing gear 7 is a sector gear, so the erasing gear 7 is alternately meshed with the first erasing rack 5 and the second erasing rack 6, when the erasing gear 7 is meshed with the first erasing rack 5, the erasing gear 7 drives the first erasing rack 5 to move, the first erasing rack 5 drives the second erasing rack 6 to move together through a connecting piece, the erasing blocks 18 on the first erasing rack 5 and the erasing blocks 18 on the second erasing rack 6 erase the handwriting on the plate body 4, when the erasing gear 7 rotates to be meshed with the second erasing rack 6, the erasing gear 7 is not meshed with the first erasing rack 5 any more, the erasing gear 7 drives the second erasing rack 6 to move reversely, the second erasing rack 6 drives the first erasing rack 5 to move reversely through the connecting piece, the erasing blocks 18 on the first erasing rack 5 and the erasing blocks 18 on the second erasing rack 6 erase the writing on the plate body 4 reversely. From this, realized through this scheme that first rack 5 and the horizontal reciprocating motion of second rack 6 of erasing, can erase the writing on the plate body 4 repeatedly for the writing is erased cleaner.
Meanwhile, when the motor 13 rotates, the motor 13 drives the moving gear 17 to rotate, the moving gear 17 is alternately meshed with the first fixed rack 11 and the second fixed rack 12, when the moving gear 17 is meshed with the first fixed rack 11, the moving gear 17 rolls on the first fixed rack 11 from top to bottom, so that the motor 13 is driven to vertically move downwards in the groove 10, and the motor 13 drives the first erasing rack 5 and the second erasing rack 6 to vertically move through the supporting member 14, so that vertical erasing of the handwriting on the board body 4 is realized. When the motor 13 approaches the bottom end of the groove 10, the side wall of the motor 13 extrudes the wedge 15 below, the wedge 15 is extruded and moves leftwards, the wedge 15 enters the wedge groove, the wedge 15 extrudes the pressure spring 16, the pressure spring 16 stores force, because the motor 13 is abutted against the inner wall of the right side of the groove 10 at this time, the wedge 15 does not push the motor 13 to move, when the motor 13 completely moves into the groove of the bottom end of the groove 10, the side wall of the motor 13 is not abutted against the right side wall of the groove 10, and simultaneously the side wall of the motor 13 is abutted against the plane of the small end of the wedge 15, the pressure spring 16 pushes the wedge 15 to move rightwards, the wedge 15 pushes the motor 13 to move rightwards, so that the motor 13 is pushed from the other side of the groove 10 at one side of the groove 10, the moving gear 17 is engaged with the second fixed rack 12, and because the first fixed rack 11 and, therefore, the moving gear 17 moves upwards in the opposite direction on the second fixed rack 12, the moving gear 17 drives the motor 13 to move in the opposite direction in the groove 10, and the motor 13 drives the first erasing rack 5 and the second erasing rack 6 to move in the opposite direction in the vertical direction through the supporting piece 14, so that the vertical opposite erasing of the handwriting on the plate body 4 is realized.
Similarly, when the motor 13 moves to the end of the top of the groove 10 again, the motor 13 pushes the motor 13 to move laterally to the left under the action of the upper elastic mechanism, so that the moving gear 17 is separated from the second fixed rack 12, the moving gear 17 is engaged with the first fixed rack 11 again, the motor 13 moves from the right side to the left side of the groove 10, the motor 13 moves from the top to the bottom under the driving of the moving gear 17, and the erasing mechanism also moves from the top to the bottom, so as to erase the handwriting on the board 4. Therefore, the motor 13 can reciprocate vertically, and the erasing block 18 can erase the handwriting on the board body 4 vertically. Therefore, the vertical repeated erasing of the handwriting on the plate body 4 is realized through the scheme, the erasing effect is better, and the handwriting is erased more cleanly.
To sum up, through this scheme, through transversely erasing repeatedly and vertically erasing repeatedly to the writing on the plate body 4 and combining together for writing on the plate body 4 is erased cleaner, and the effect of erasing of writing is better, compares in addition and uses the cylinder drive, can not receive the influence of cylinder pole length, thereby makes the area of erasing great, and the setting of whole structure is comparatively compact, and it is better to erase the effect.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make various changes and modifications without departing from the concept of the present invention, and these should be construed as the scope of protection of the present invention, which will not affect the effect of the implementation of the present invention and the utility of the patent. The techniques, shapes, and structural parts, which are omitted from the description of the present invention, are all known techniques.

Claims (10)

1. The utility model provides a think political affairs instrument for education, includes the plate body, its characterized in that: the box body is provided with an opening at the top, the plate body is vertically connected in the box body in a sliding manner, the bottom of the plate body is provided with a first magnet, and the top of the box body is provided with a second magnet attracted with the first magnet; the bottom of the box body is provided with a rotating wheel.
2. The implement for political thinking education as claimed in claim 1, wherein: the box body comprises a first cover body and a second cover body which are covered together, the plate body is vertically connected to the first cover body in a sliding mode, and the second cover body is provided with an erasing mechanism.
3. The implement for political thinking education as claimed in claim 2, wherein: the erasing mechanism comprises a motor, a moving gear, an erasing gear, a first erasing rack and a second erasing rack, the erasing gear is a sector gear, the moving gear and the erasing gear are coaxially and fixedly connected to an output shaft of the motor, the first erasing rack and the second erasing rack are alternately meshed with the erasing gear, the first erasing rack and the second erasing rack are positioned on two sides of the erasing gear, a supporting piece is fixedly connected to the motor, the first erasing rack and the second erasing rack are transversely and slidably connected to the supporting piece, erasing blocks are fixedly connected to the first erasing rack and the second erasing rack, and a connecting piece is connected between the first erasing rack and the second erasing rack; the side face, facing the first cover body, of the second cover body is provided with a 'return' -shaped groove, the motor is connected in the groove in a sliding mode, a first fixed rack and a second fixed rack are fixedly connected to the two sides of the groove, the moving gear is meshed with the first fixed rack and the second fixed rack alternately, and two opposite corners of the groove are provided with elastic mechanisms used for pushing the motor to move transversely.
4. The implement for political thinking education as claimed in claim 3, wherein: the elastic mechanism comprises a wedge block and a pressure spring, a wedge block groove is formed in the second cover body, the wedge block is connected in the wedge block groove in a transverse sliding mode, and the pressure spring is located between the wedge block and the inner wall of the wedge block groove.
5. The implement for political thinking education as claimed in claim 2, wherein: and an expansion piece and a clamping piece set are connected between the first cover body and the second cover body.
6. The implement for political thinking education as claimed in claim 5, wherein: the clamping piece group comprises a clamping piece positioned on the outer side of the first cover body and a clamping sleeve positioned on the outer side of the second cover body, and the clamping sleeve is clamped on the clamping piece.
7. The implement for political thinking education as claimed in claim 4, wherein: the small end of the wedge block is far away from the pressure spring, and the small end of the wedge block is provided with a vertical plane which is used for abutting against the outer wall of the motor.
8. The implement for political thinking education as claimed in claim 5, wherein: the extensible member is a telescopic rod, rod grooves are formed in the opposite side faces of the first cover body and the second cover body, and the two ends of the telescopic rod are located in the rod grooves.
9. An educational tool for thinking of politics according to any one of claims 1 to 8, wherein: the quantity of plate body is a plurality of, is equipped with a plurality of cavities on the box body, and every plate body is located each cavity respectively.
10. The implement for political thinking education as claimed in claim 9, wherein: the number of the cavities and the number of the plate bodies are two.
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