CN116198249A

CN116198249A - Display device is used in computer teaching

Info

Publication number: CN116198249A
Application number: CN202310415557.0A
Authority: CN
Inventors: 周祥明; 李姜彪; 万美玲
Original assignee: Jiangxi Normal University
Current assignee: Jiangxi Normal University
Priority date: 2023-04-18
Filing date: 2023-04-18
Publication date: 2023-06-02

Abstract

The invention discloses a display device for computer teaching, which belongs to the technical field of teaching display and comprises a teaching display rack, wherein an air pump is fixedly arranged in the teaching display rack. The invention has the advantages that: the power motor is utilized to drive the reciprocating screw rod to rotate, and then the bearing lifting plate on the reciprocating screw rod is pushed to lift, and then the bearing lifting plate is utilized to bear the cleaning device to lift, so that chalk words are erased by the strip-shaped blackboard eraser in the moving process, chalk dust can enter the dust collecting tank to be collected, the chalk dust is prevented from flying, after the cleaning device descends to a set position, the inclined plate of the sealing plate is contacted with the storage box, the storage box can push the sealing plate to move, the dust collecting tank is opened, the collected chalk dust is conveyed into the storage box, and therefore writing and screen double-sided teaching can be utilized, the detail degree of teaching is increased, the chalk dust generated during writing can be cleaned without fly ash, and dust is prevented from flying, and the physical health of teachers and students is affected.

Description

Display device is used in computer teaching

Technical Field

The invention relates to the technical field of teaching display, in particular to a display device for computer teaching.

Background

The computer is commonly called as a computer, is a modern electronic computing machine for high-speed computation, can perform numerical computation, can perform logic computation, and has a memory function. The intelligent electronic device is modern intelligent electronic equipment which can automatically and rapidly process mass data according to program operation. A computer, which is composed of a hardware system and a software system, without any software installed, is called a bare metal. The method can be divided into five types of super computers, industrial control computers, network computers, personal computers and embedded computers, and more advanced computers include biological computers, photon computers, quantum computers and the like.

General display device for computer teaching in the market can't carry out two-sided teaching, when the external education, if the problem that does not write in advance appears in the screen, just can influence the quality of teaching to when the chalk dust on the writing board is required to be erased in the teaching completion, lead to the chalk dust to fly upward easily, the teachers and students inhale for a long time and influence the healthy of teachers and students easily, brought the problem of device defect. Therefore, we propose a display device for computer teaching.

Disclosure of Invention

The invention aims to solve the technical problem of providing a display device for computer teaching.

In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a display device is used in computer teaching, includes the teaching show shelf, the inside fixed mounting of teaching show shelf has the air pump, the output of air pump rotates installs the installation axle, epaxial demountable installation has the teaching show board of installation, one side fixed mounting of teaching show board has the show screen, the opposite side fixed mounting of teaching show board has the clipboard, one side demountable installation that teaching show board was kept away from to the clipboard has the baffle, the inside fixed mounting of teaching show board has the clearance subassembly.

As a further scheme of the invention, the cleaning component comprises a power motor fixedly arranged in the teaching display board, a reciprocating screw rod is fixedly arranged at the output end of the power motor, a bearing lifting plate is spirally arranged on the reciprocating screw rod, and a cleaning device is arranged on the bearing lifting plate.

As a further scheme of the invention, through holes are formed at two ends of the cleaning device, a guide shaft is fixedly arranged on one side of the teaching display plate, which is far away from the reciprocating screw rod, and the guide shaft and the reciprocating screw rod are arranged through the through holes.

As a further scheme of the invention, a cleaning groove is formed in one side, close to the writing board, of the cleaning device, a strip-shaped blackboard eraser is fixedly installed in the cleaning groove, the strip-shaped blackboard eraser is tightly attached to the writing board, a dust collecting groove is formed in the bottom wall of the cleaning groove, and a sealing assembly for sealing the dust collecting groove is fixedly installed at the bottom end of the cleaning device.

Through the technical scheme, the following technical effects can be achieved: .

As a further scheme of the invention, the sealing assembly comprises two limiting blocks fixedly arranged at the bottom end of the cleaning device, the two limiting blocks are respectively positioned at the left end and the right end of the cleaning device, the limiting blocks are slidably provided with sealing plates, the bottom end of the cleaning device is fixedly provided with mounting bars, and springs are fixedly arranged between the mounting bars and the sealing plates.

As a further scheme of the invention, a storage box is fixedly arranged in the teaching display board and is positioned at the lower side of the cleaning device, a storage bin is arranged in the storage box, an anti-reverse sloping plate is fixedly arranged in the storage bin, and a gap is reserved between one side of the lower anti-reverse sloping plate and the inner wall of the storage bin.

As a further scheme of the invention, a movable rail is arranged on one side of the storage box, which is far away from a gap between the storage bin and the anti-reverse sloping plate, a handheld plate is slidably arranged in the movable rail and extends to the inside of the storage bin, a sweeping block is fixedly arranged on the handheld plate in the storage bin, and the sweeping block is mutually matched with the storage bin.

As a further scheme of the invention, a processing hole is formed in the bottom end of the storage box, a powder ash processing bottle is arranged at the bottom end thread of the processing hole, and a plurality of storage racks are fixedly arranged on the teaching display rack.

As a further scheme of the invention, the upper wall of the teaching display frame is provided with two sliding grooves, the two sliding grooves are respectively positioned at the left side and the right side of the teaching display board, U-shaped fixing blocks are slidably arranged in the two sliding grooves, and the U-shaped fixing blocks are mutually matched with the teaching display board.

As a further scheme of the invention, a plurality of twisting convex blocks are fixedly arranged on the inner wall of the teaching display board, which is close to one side of the writing board, the twisting convex blocks are uniformly distributed, twisting blocks are fixedly arranged on the left side and the right side of the cleaning device, the twisting blocks are made of rubber materials, and the twisting blocks are mutually matched with the twisting convex blocks.

By adopting the technical scheme, compared with the prior art, the invention has the beneficial effects that:

1. the power motor is utilized to drive the reciprocating screw rod to rotate, and then the bearing lifting plate on the reciprocating screw rod is pushed to lift, and then the bearing lifting plate is utilized to bear the cleaning device to lift, so that in the moving process, the chalk characters are erased by the strip-shaped blackboard eraser, chalk dust can enter the dust collecting tank to be collected, the chalk dust is prevented from flying, after the cleaning device descends to a set position, the inclined plate of the sealing plate is contacted with the storage box, then the storage box can push the sealing plate to move, the dust collecting tank is opened, the collected chalk dust is conveyed into the storage box, double-sided teaching can be performed by utilizing writing and screens, the teaching detail degree is increased, and the chalk dust generated during writing can be cleaned without fly ash, so that dust is prevented from flying, and the body health of teachers and students is influenced.

2. When this display device's chalk dust carries to storing in the storehouse, utilize prevent contrary swash plate to prevent that the dust from flying out again, and when need to store the dust clearance in the storehouse, the pulling is handheld board and is removed, drive through handheld board and sweep the collection piece and remove, utilize the removal of sweeping the collection piece to clean the chalk dust of storing in the storehouse and pile up, then clear up in the chalk dust processing bottle, after the clearance is accomplished, rotatory chalk dust processing bottle is dismantled the chalk dust processing bottle, then handle the inside dust of chalk dust processing bottle, so can be more convenient clear up the chalk dust, reduce the chalk dust and fly upward the influence to teachers and students.

3. Utilize the supporter to place the article that probably utilizes during the teaching, conveniently carry, and when rotating the adjustment to the teaching show board, the pulling U-shaped fixed block removes at the spout, make two U-shaped fixed blocks all withdraw from the cooperation with the teaching show board, then rotate, promote the U-shaped fixed block after the completion rotation again with teaching show integrated circuit board post, and when cleaning device clearance, twist the lug and twist the piece through cleaning device left and right sides and make cleaning device take place to control the removal when going up and down, utilize cleaning device's control to remove, and then better erasing chalk word, can fix the position of teaching show board like this, prevent to appear rotating at the use teaching show board, and utilize cleaning device's control to remove the improvement clearance effect of erasing.

Drawings

FIG. 1 is a schematic view of the overall three-dimensional structure of the present invention;

FIG. 2 is a schematic diagram of the overall rear perspective structure of the present invention;

FIG. 3 is a schematic rear perspective view of the teaching demonstration board of the present invention;

FIG. 4 is a schematic view of a part of a cleaning apparatus according to the present invention;

FIG. 5 is a schematic view of a rear perspective view of a portion of a cleaning apparatus according to the present invention;

FIG. 6 is a schematic perspective view of a cleaning tank part according to the present invention;

FIG. 7 is a schematic perspective view of a dust collecting tank according to the present invention;

FIG. 8 is a schematic perspective view of a sealing plate according to the present invention;

FIG. 9 is a schematic view of a portion of a seal plate according to the present invention;

FIG. 10 is a schematic perspective view of a storage box according to the present invention;

fig. 11 is a schematic perspective view of a sweeping block according to the present invention.

In the figure: 1. a teaching display rack; 2. a teaching display board; 3. an air pump; 4. a mounting shaft; 5. a display screen; 6. a baffle; 7. a writing board; 8. a power motor; 9. a reciprocating screw rod; 10. carrying a lifting plate; 11. a cleaning device; 12. a through hole; 13. a storage tank; 14. a powder ash treatment bottle; 15. twisting the bump; 16. twisting the block; 17. cleaning the groove; 18. a strip-shaped blackboard eraser; 19. a sealing plate; 20. a dust collection tank; 21. a mounting bar; 22. a storage bin; 23. a hand-held plate; 24. an anti-reverse sloping plate; 25. sweeping the collection block; 26. a movable rail; 27. a commodity shelf; 28. a limiting block; 29. a spring; 30. a guide shaft; 31. a chute; 32. u-shaped fixed block.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1:

referring to fig. 1 to 11, the present invention provides a technical solution: the utility model provides a display device is used in computer teaching, including teaching show shelf 1, the inside fixed mounting of teaching show shelf 1 has air pump 3, the output of air pump 3 rotates installs installation axle 4, demountable installation has teaching show board 2 on the installation axle 4, one side fixed mounting of teaching show board 2 has show screen 5, the opposite side fixed mounting of teaching show board 2 has clipboard 7, one side demountable installation that teaching show board 2 was kept away from to clipboard 7 has baffle 6, the inside fixed mounting of teaching show board 2 has the clearance subassembly, the clearance subassembly includes fixed mounting power motor 8 in teaching show board 2, power motor 8's output fixed mounting has reciprocating screw 9, screw mounting has on the reciprocating screw 9 bears lifter plate 10, install cleaning device 11 on the bearing lifter plate 10.

Referring to fig. 1-9, through holes 12 are formed at two ends of a cleaning device 11, a guide shaft 30 is fixedly mounted on one side, far away from a reciprocating screw rod 9, of a teaching display plate 2, the guide shaft 30 and the reciprocating screw rod 9 are arranged through the through holes 12, a cleaning groove 17 is formed on one side, close to a writing board 7, of the cleaning device 11, a strip-shaped blackboard eraser 18 is fixedly mounted in the cleaning groove 17, the strip-shaped blackboard eraser 18 is tightly attached to the writing board 7, a dust collecting groove 20 is formed in the bottom wall of the cleaning groove 17, a sealing assembly for sealing the dust collecting groove 20 is fixedly mounted at the bottom end of the cleaning device 11, the sealing assembly comprises two limiting blocks 28 fixedly mounted at the bottom end of the cleaning device 11, the two limiting blocks 28 are respectively positioned at the left end and the right end of the cleaning device 11, sealing plates 19 are slidably mounted on the limiting blocks 28, a mounting strip 21 is fixedly mounted at the bottom end of the cleaning device 11, and springs 29 are fixedly mounted between the mounting strip 21 and the sealing plates 19;

in this embodiment: the reciprocating screw rod 9 is arranged through the through hole 12 and is not contacted with the inner wall of the through hole 12, the lifting of the through hole 12 is pushed by the bearing lifting plate 10, the bottom wall of the dust collecting groove 20 is obliquely arranged, the dust position can be better controlled, the shape of the sealing plate 19 is similar to L plus an inclined plate, the position of the sealing plate 19 is conveniently controlled, and then the sealing of the dust collecting groove 20 is opened.

Specifically, when the display device is used, the display screen 5 on the teaching display board 2 can be utilized to display the screen, when the problem of higher teaching content exists, the installation shaft 4 can be rotated, the direction of the teaching display board 2 is adjusted, the writing board 7 of the teaching display board 2 is in front, then the problem and the solution to be displayed are written on the writing board 7, and when chalk characters on the writing board 7 are cleaned, the installation shaft 4 is rotated again to enable the writing board 7 to be in back, at the moment, the power motor 8 is started to drive the reciprocating screw 9 to rotate, then the bearing lifting plate 10 on the reciprocating screw 9 is pushed to lift, then the bearing lifting plate 10 is utilized to bear the cleaning device 11 to lift, the chalk characters are erased by the strip-shaped blackboard eraser 18 in the moving process, the chalk dust can enter the dust collecting groove 20 to be collected, the chalk dust is prevented from flying, after the cleaning device 11 is lowered to a set position, the sloping plate 19 is in contact with the storage box 13, then the storage box 13 can push the sealing plate 19 to move, the dust collecting groove 20 is opened, the collected dust is conveyed into the storage box 13, the dust can be conveyed into the storage box 13, the storage box to the dust can be cleaned, the dust can be cleaned by the dust can be more fully, the dust can be written on the two sides, and the dust can be clearly cleaned, the teaching dust can be clearly has no influence on the body, and the body can be clearly and the teaching can be clearly cleaned, and the dust can be clearly has no influence on the user.

Example 2:

referring to fig. 1 to 11, the present invention provides a technical solution: the utility model provides a display device is used in computer teaching, the inside fixed mounting of teaching show shelf 1 has air pump 3, the output of air pump 3 rotates installs installation axle 4, demountable installation has teaching show board 2 on the installation axle 4, one side fixed mounting of teaching show board 2 has show screen 5, the opposite side fixed mounting of teaching show board 2 has clipboard 7, one side demountable installation that the teaching show board 2 was kept away from to clipboard 7 has baffle 6, the inside fixed mounting of teaching show board 2 has the clearance subassembly, the inside fixed mounting of teaching show board 2 has bin 13, and bin 13 is located the downside of cleaning device 11, bin 22 has been seted up to bin 13's inside, bin 22's inside fixed mounting has anti-reverse swash plate 24, and there is the clearance between the lower one side of anti-reverse swash plate 24 and bin 22's the inner wall.

Referring to fig. 1, 10 and 11, a movable rail 26 is provided on a side of the storage box 13 far away from a gap between the storage bin 22 and the anti-reverse sloping plate 24, a hand-held plate 23 is slidably mounted in the movable rail 26, the hand-held plate 23 extends into the storage bin 22, a sweeping block 25 is fixedly mounted on the hand-held plate 23 in the storage bin 22, the sweeping block 25 is matched with the storage bin 22, a processing hole is provided at the bottom end of the storage box 13, a soot processing bottle 14 is mounted at the bottom end of the processing hole in a threaded manner, and a plurality of storage racks 27 are fixedly mounted on the teaching display stand 1;

specifically, when the chalk dust of this display device is carried in storing storehouse 22, utilize the anti-reverse swash plate 24 to prevent that the dust from flying out again, and when the dust clearance that can in storing storehouse 22 is to needs, pulling handheld board 23 removes, drive through handheld board 23 and sweep the collection piece 25 and remove, utilize the removal of sweeping the collection piece 25 to sweep the chalk dust of storing in the storehouse 22 and pile up, then clear up in the chalk dust processing bottle 14, after the clearance is accomplished, rotatory chalk dust processing bottle 14 is dismantled the chalk dust processing bottle 14, then handle the dust of inside the chalk dust processing bottle 14, so can more convenient clear up the chalk dust, reduce the chalk dust and fly upward the influence to teachers and students.

Example 3:

referring to fig. 1 to 11, the present invention provides a technical solution: display device is used in computer teaching, the inside fixed mounting of teaching show shelf 1 has air pump 3, the output of air pump 3 rotates installs installation axle 4, install epaxial demountable installation has teaching show board 2, one side fixed mounting of teaching show board 2 has show screen 5, the opposite side fixed mounting of teaching show board 2 has clipboard 7, one side demountable installation that clipboard 7 kept away from teaching show board 2 has baffle 6, the inside fixed mounting of teaching show board 2 has the clearance subassembly.

Referring to fig. 2 and 3, two sliding grooves 31 are formed in the upper wall of the teaching display stand 1, the two sliding grooves 31 are respectively located at the left side and the right side of the teaching display stand 2, a U-shaped fixing block 32 is slidably mounted in the two sliding grooves 31, the U-shaped fixing block 32 is matched with the teaching display stand 2, a plurality of twisting protrusions 15 are fixedly mounted on the inner wall of the teaching display stand 2, which is close to one side of the writing board 7, the twisting protrusions 15 are uniformly distributed, twisting blocks 16 are fixedly mounted at the left side and the right side of the cleaning device 11, the twisting blocks 16 are made of an Emei rubber material, and the twisting blocks 16 are matched with the twisting protrusions 15;

in this embodiment: the shape of the twisting block 16 and the twisting protruding block 15 are semi-cylinders, but the radius of the twisting protruding block 15 is smaller than that of the twisting block 16, the cleaning device 11 is twisted left and right through the twisting protruding block 15 and the twisting protruding block 16, and the U-shaped of the U-shaped fixing block 32 can be well inserted into the teaching display board 2, so that the position of the teaching display board 2 can be conveniently fixed.

Specifically, the article that probably utilizes when utilizing the supporter 27 can with teaching is placed, conveniently carry, and when rotating the adjustment to teaching show board 2, pulling U-shaped fixed block 32 removes at spout 31, make two U-shaped fixed blocks 32 all withdraw from the cooperation with teaching show board 2, then rotate, promote U-shaped fixed block 32 again with teaching show board 2 card post after accomplishing the rotation, and when cleaning device 11 clearance, through the twist lug 15 and the twist piece 16 of cleaning device 11 left and right sides impel cleaning device 11 to take place to control when going up and down and remove, utilize cleaning device 11's left and right sides to remove, and then better erasing chalk word, can fix the position of teaching show board 2 like this, prevent to use teaching show board 2 to appear rotating, and utilize cleaning device 11's left and right movement to improve the clearance and erase the effect.

Working principle: when the display device is used, a display screen 5 on the teaching display board 2 can be utilized for screen display, when the problem of higher teaching content exists, the installation shaft 4 can be rotated, the direction of the teaching display board 2 is adjusted, the writing board 7 of the teaching display board 2 is positioned on the front, then the problem and the solution to be displayed are written on the writing board 7, when chalk characters on the writing board 7 are cleaned, the installation shaft 4 is rotated again to enable the writing board 7 to be positioned on the back, the power motor 8 is started to drive the reciprocating screw rod 9 to rotate, the bearing lifting plate 10 on the reciprocating screw rod 9 is pushed to lift, the bearing lifting plate 10 is utilized to bear the cleaning device 11 to lift, the chalk characters are erased by the strip-shaped blackboard eraser 18 in the moving process, and the chalk dust can enter the dust collecting groove 20 to be collected, so that the chalk dust is prevented from flying. When the cleaning device 11 descends to a set position, the inclined plate of the sealing plate 19 is contacted with the storage box 13, then the storage box 13 pushes the sealing plate 19 to move, the dust collecting groove 20 is opened, collected chalk dust is conveyed into the storage box 13, when the chalk dust of the display device is conveyed into the storage bin 22, the dust is prevented from flying out again by the anti-reverse inclined plate 24, when the dust in the storage bin 22 needs to be cleaned, the handheld plate 23 is pulled to move, the sweeping block 25 is driven to move by the handheld plate 23, the chalk dust in the storage bin 22 is swept and accumulated by the movement of the sweeping block 25 and then cleaned into the dust processing bottle 14, and after cleaning is finished, the dust processing bottle 14 is disassembled by rotating the dust processing bottle 14, and then the dust in the dust processing bottle 14 is processed. Utilize supporter 27 can place the article that probably utilizes during the teaching, conveniently carry, and when rotating the adjustment to teaching show board 2, pulling U-shaped fixed block 32 removes at spout 31, make two U-shaped fixed blocks 32 all withdraw from the cooperation with teaching show board 2, then rotate, promote U-shaped fixed block 32 again with teaching show board 2 card post after accomplishing the rotation, and when cleaning device 11 clearance, twist lug 15 and the twist piece 16 through cleaning device 11 left and right sides impel cleaning device 11 to take place to control when going up and down and remove, utilize cleaning device 11's left and right sides to remove, and then better erasing chalk word.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a display device is used in computer teaching, includes teaching show shelf (1), its characterized in that: the inside of the teaching display rack (1) is fixedly provided with an air pump (3), the output end of the air pump (3) is rotatably provided with an installation shaft (4), the installation shaft (4) is detachably provided with a teaching display board (2), one side of the teaching display board (2) is fixedly provided with a display screen (5), the utility model discloses a teaching show board, including teaching show board (2), opposite side fixed mounting of teaching show board (2) has clipboard (7), one side demountable installation that the teaching show board (2) was kept away from to clipboard (7) has baffle (6), the inside fixed mounting of teaching show board (2) has the clearance subassembly.

2. The display device for computer teaching according to claim 1, wherein: the cleaning assembly comprises a power motor (8) fixedly installed in the teaching display board (2), a reciprocating screw rod (9) is fixedly installed at the output end of the power motor (8), a bearing lifting plate (10) is spirally installed on the reciprocating screw rod (9), and a cleaning device (11) is installed on the bearing lifting plate (10).

3. A display device for computer teaching according to claim 2 and characterized in that: through holes (12) are formed in two ends of the cleaning device (11), a guide shaft (30) is fixedly arranged on one side, far away from the reciprocating screw rod (9), of the teaching display board (2), and the guide shaft (30) and the reciprocating screw rod (9) are arranged through the through holes (12).

4. A display device for computer teaching according to claim 3 and characterized in that: the blackboard eraser is characterized in that a cleaning groove (17) is formed in one side, close to the writing board (7), of the cleaning device (11), a strip blackboard eraser (18) is fixedly installed in the cleaning groove (17), the strip blackboard eraser (18) is tightly attached to the writing board (7), a dust collecting groove (20) is formed in the bottom wall of the cleaning groove (17), and a sealing assembly used for sealing the dust collecting groove (20) is fixedly installed at the bottom end of the cleaning device (11).

5. The display device for computer teaching according to claim 4, wherein: the sealing assembly comprises two limiting blocks (28) fixedly arranged at the bottom end of the cleaning device (11), the two limiting blocks (28) are respectively arranged at the left end and the right end of the cleaning device (11), sealing plates (19) are slidably arranged on the limiting blocks (28), mounting strips (21) are fixedly arranged at the bottom end of the cleaning device (11), and springs (29) are fixedly arranged between the mounting strips (21) and the sealing plates (19).

6. The display device for computer teaching according to claim 5, wherein: the inside fixed mounting of teaching show board (2) has bin (13), and bin (13) are located the downside of cleaning device (11), bin (22) have been seted up to the inside of bin (13), the inside fixed mounting of bin (22) has anti-contrary swash plate (24), and has the clearance between the lower one side of anti-contrary swash plate (24) and the inner wall of bin (22).

7. The display device for computer teaching of claim 6, wherein: a movable rail (26) is arranged on one side, far away from a gap between the storage bin (22) and the inverse-preventing inclined plate (24), of the storage bin (13), a handheld plate (23) is arranged in the movable rail (26) in a sliding mode, the handheld plate (23) extends to the inside of the storage bin (22), a sweeping block (25) is fixedly arranged on the handheld plate (23) inside the storage bin (22), and the sweeping block (25) is matched with the storage bin (22).

8. The display device for computer teaching of claim 7, wherein: the bottom of bin (13) has been seted up and has been handled the hole, the bottom screw thread in handling the hole is installed powder ash and is handled bottle (14), fixed mounting has a plurality of supporter (27) on teaching show shelf (1).

9. The display device for computer teaching of claim 8, wherein: two spouts (31) have been seted up to the upper wall of teaching show shelf (1), and two spouts (31) are located the left and right sides of teaching show board (2) respectively, two the inside slidable mounting of spout (31) has U-shaped fixed block (32), and U-shaped fixed block (32) and teaching show board (2) mutually support.

10. The display device for computer teaching of claim 9, wherein: the teaching show board (2) is close to and twists lug (15) of fixed mounting on the inner wall of clipboard (7) one side, and twists and be evenly distributed between lug (15), the equal fixed mounting in left and right sides of cleaning device (11) has twists piece (16), and twists piece (16) the Emei rubber material, twists piece (16) and twists lug (15) mutually support.