CN110766993B - Computer teaching is with transferring teaching display soon - Google Patents

Computer teaching is with transferring teaching display soon Download PDF

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Publication number
CN110766993B
CN110766993B CN201911146575.3A CN201911146575A CN110766993B CN 110766993 B CN110766993 B CN 110766993B CN 201911146575 A CN201911146575 A CN 201911146575A CN 110766993 B CN110766993 B CN 110766993B
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CN
China
Prior art keywords
concave
display screen
supporting frame
movable
blackboards
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Active
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CN201911146575.3A
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Chinese (zh)
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CN110766993A (en
Inventor
卜令瑞
衣洋
赵颖
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Shandong Labor Vocational and Technical College
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Shandong Labor Vocational and Technical College
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Priority to CN201911146575.3A priority Critical patent/CN110766993B/en
Publication of CN110766993A publication Critical patent/CN110766993A/en
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Classifications

    • 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
    • G09B5/00Electrically-operated educational appliances
    • G09B5/02Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B97/00Miscellaneous furniture; Miscellaneous accessories for furniture
    • A47B97/04Easels or stands for blackboards or the like
    • 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

Abstract

The invention discloses a rotary adjusting teaching display for computer teaching, which comprises a concave supporting frame and a display screen, wherein the bottom of the inner side surface of the concave supporting frame is fixedly connected with two fixed blackboards, the bottom of the inner side surface of the concave supporting frame is also movably connected with two movable blackboards, and the inner side surface of the concave supporting frame is fixedly provided with a display screen adjusting mechanism, a movable blackboard moving mechanism and an auxiliary mechanism. According to the invention, through the matching of the structures, the process of rotating the rotary adjusting button is realized, so that the display screen replaces the positions of the two movable blackboards, the display screen and the two fixed blackboards are coplanar for use, the two movable blackboards are positioned at the center of the whole blackboards, so that the position belongs to the best position for the students to observe the screen, and the display screen replaces the positions of the two movable blackboards, so that the students can observe the screen more clearly.

Description

Computer teaching is with transferring teaching display soon
Technical Field
The invention relates to the technical field of display adjustment, in particular to a rotary adjusting teaching display for computer teaching.
Background
In the process of computer teaching, teaching contents are often required to be presented through a display screen so that students can more clearly understand the teaching contents. Often among the tradition is that the mr is through promoting a removal support that has the display screen, then moves the display screen to the centre of blackboard so that the student observes the content on the display screen, but the round trip movement and fixed display screen support are comparatively troublesome to move the display screen to the in-process of blackboard centre, still need carry out corresponding regulation according to the height of different blackboards, it is all comparatively troublesome that it is operated.
Disclosure of Invention
The invention aims to provide a rotary adjusting teaching display for computer teaching, which has the advantages that the display screen replaces the positions of two movable blackboards by rotating a rotary adjusting button, the display screen is coplanar with the two fixed blackboards for use, the two movable blackboards are positioned at the center of the whole blackboards, so that the position is the best position for students to observe the screen, the display screen replaces the positions of the two movable blackboards, the students can observe the screen more clearly, the problem that in the prior art, a teacher often pushes a movable support with the display screen to move the display screen to the center of the blackboards so that the students can observe the content on the display screen is solved, the problem that the display screen support is troublesome to move back and forth and fix, and the display screen needs to be moved to the center of the blackboards according to the heights of the different blackboards, the height of the display screen is correspondingly adjusted, and the operation is troublesome.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a computer teaching is with transferring teaching display soon, includes concave style of calligraphy carriage and display screen, two fixed blackboards of bottom fixedly connected with of concave style of calligraphy carriage medial surface, the bottom of concave style of calligraphy carriage medial surface still swing joint has two movable blackboards, the medial surface fixed mounting of concave style of calligraphy carriage has display screen guiding mechanism, movable blackboard moving mechanism and complementary unit.
The display screen adjusting mechanism comprises a threaded rod and a supporting plate, the upper end of the threaded rod is matched and rotatably connected with the top of the inner side surface of the concave supporting frame through a bearing, the lower end of the threaded rod penetrates through the lower surface of the concave supporting frame and is fixedly connected with a rotary adjusting button, the supporting plate is fixedly connected to the top of the inner side surface of the concave supporting frame, the lower end of the supporting plate is rotatably connected with two linkage arms through a pin shaft, one ends of the two linkage arms far away from the supporting plate are hinged with a mounting plate, the display screen is fixedly arranged on the mounting plate, one side of the mounting plate far away from the display screen is fixedly connected with a linkage plate, the upper surface and the lower surface of the linkage plate are provided with mutually communicated sliding grooves, the linkage plate is connected with a sliding block in a left-right sliding way through the sliding grooves, the upper surface and the lower surface of the sliding block are provided with threaded through holes which are mutually communicated, and the sliding block is connected to the external thread of the threaded rod through the threaded through holes in a threaded manner.
Preferably, the movable blackboard moving mechanism comprises a straight-tooth cylinder, a rack bar, two rectangular frames, two rack plates, two guide grooves and two sliding columns, the upper end of the straight-tooth cylinder is rotatably connected to the top of the inner side surface of the concave-shaped support frame through bearing cooperation, the rack bar is fixedly connected to one side of the linkage plate close to the straight-tooth cylinder, the rack bar is meshed with the straight-tooth cylinder, the two rectangular frames are fixedly connected to the bottom of the inner side surface of the concave-shaped support frame, the two rack plates respectively penetrate through the inner side surfaces of the two rectangular frames and are meshed with the straight-tooth cylinder, one side of each rack plate close to the movable blackboard is fixedly connected with a connecting rod, one side of each connecting rod far away from the rack plate is fixedly connected with the two movable blackboards respectively, the two guide grooves are arranged at the bottom of the inner side surface of the concave-shaped support frame, the two sliding columns are respectively fixedly connected to the lower surfaces of the two movable blackboards and respectively slide along the groove walls of the two guide grooves.
Preferably, the guide groove comprises an oblique groove and a longitudinal groove, and the oblique groove is communicated with the longitudinal groove.
Preferably, the abutting surfaces of the fixed blackboard and the movable blackboard are arranged in an inclined manner, and the inclination angle of the abutting surfaces is consistent with that of the inclined grooves.
Preferably, complementary unit includes two connecting blocks, two the inner wall horizontal slip of concave style of calligraphy carriage is all followed to the connecting block, two the connecting block is close to the equal fixedly connected with gangbar in one side of activity blackboard, two one side that the gangbar is close to the activity blackboard all stretches into to the medial surface of concave style of calligraphy carriage and equal fixedly connected with support block, two the one end fixedly connected with that the gangbar was kept away from to the connecting block puts the thing box, concave style of calligraphy carriage is close to the right side of its bottom and sets up the opening that supplies to put the thing box and stretch out, it is close to one side fixedly connected with extension spring of connecting block to put the thing box, extension spring and concave style of calligraphy carriage's inner wall fixed connection.
Preferably, the bottom of the inner side surface of the concave supporting frame is provided with a dust collecting groove.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, through the arrangement of the threaded rod, the supporting plate, the rotary adjusting button, the linkage arm, the mounting plate, the linkage plate, the sliding chute and the sliding block, the display screen replaces the positions of the two movable blackboards through the process of rotating the rotary adjusting button, so that the display screen and the two fixed blackboards are coplanar for use.
The two movable blackboards are enabled to vacate the position for the display screen through the process of rotating the rotary adjusting button through the arrangement of the straight tooth cylinders, the rack rows, the rectangular frames, the rack plates, the guide grooves, the oblique grooves, the longitudinal grooves, the sliding columns and the connecting rods, so that the display screen can replace the positions of the two movable blackboards.
Thirdly, in the process of replacing the display screen with two movable blackboards, the storage box can firstly extend out of the concave support frame and approach the opening formed at the right side of the bottom of the concave support frame through the connecting block, the linkage rod, the abutting block, the storage box, the display screen and the extension spring, so that a series of articles (such as a remote control pen or a remote controller of the display screen) matched with the display screen can be conveniently taken out from the storage box, the storage box can be withdrawn into the opening again after the articles are taken out, the hiding effect is achieved, meanwhile, in the process of withdrawing the display screen to the state shown in the figure 1, the storage box extends out of the opening again, so that the series of articles matched with the display screen can be placed back into the storage box again for storage, and after the storage, the storage box is withdrawn into the opening similarly, the hiding effect is achieved, on one hand, the phenomenon of colliding with the storage box is avoided, on the other hand, in the, the object placing box firstly extends out of the opening and then is hidden, so that an operator is reminded to take out or store objects, and the object placing box can be prevented from being lost when being stored.
In conclusion, the process of rotating the rotary adjusting button is provided, so that the display screen replaces the positions of the two movable blackboards, the display screen and the two fixed blackboards are coplanar for use, because the two movable blackboards are positioned at the center of the whole blackboard, the position is an excellent position for the students to observe the screen, and the display screen replaces the positions of the two movable blackboards, so that the students can observe the screens more clearly, the problems that in the prior art, a teacher often pushes a movable support with the display screen, then the display screen is moved to the center of the blackboard so that the students can observe the content on the display screen, but the movement back and forth and the fixation of the display screen bracket are troublesome, and in the process of moving the display screen to the center of the blackboard, the height of the display screen is correspondingly adjusted according to the heights of different blackboards, and the operation is troublesome.
Drawings
FIG. 1 is a cross-sectional view of the structure of FIG. 2 taken along line B-B in accordance with the present invention;
FIG. 2 is a cross-sectional view of the structure of FIG. 1 taken along line A-A thereof in accordance with the present invention;
FIG. 3 is a cross-sectional front view of the threaded rod, chute and slide block structure of the linkage plate of the present invention;
FIG. 4 is a top view of a cross-sectional rear guide groove, sliding posts, linkage rods and dust collection groove structure of the concave-shaped support frame of the present invention;
FIG. 5 is a top view of a cross-sectional rear connecting block, a linkage rod and a storage box structure of the concave-shaped supporting frame of the present invention;
FIG. 6 is a diagram illustrating a state of the knob of FIG. 1 after the knob is rotated by a certain angle according to the present invention;
FIG. 7 is a top cross-sectional view of the present invention corresponding to the state of FIG. 6;
fig. 8 is a right side view of the inventive structure.
In the figure: 1-concave support frame, 2-fixed blackboard, 3-movable blackboard, 4-display screen adjusting mechanism, 5-movable blackboard moving mechanism, 6-auxiliary mechanism, 7-threaded rod, 8-support plate, 9-rotary adjusting button, 10-linkage arm, 11-mounting plate, 12-linkage plate, 13-sliding chute, 14-sliding block, 15-straight tooth cylinder, 16-rack row, 17-rectangular frame, 18-rack plate, 19-guide groove, 191-oblique groove, 192-longitudinal groove, 20-sliding column, 21-connecting rod, 22-connecting block, 23-linkage rod, 24-pressing block, 25-storage box, 26-display screen, 27-dust collecting groove and 28-extension spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 8, the present invention provides a technical solution: the utility model provides a computer teaching is with transferring teaching display soon, includes concave type carriage 1 and display screen 26, two fixed blackboards 2 of bottom fixedly connected with of concave type carriage 1 medial surface, the bottom of concave type carriage 1 medial surface still swing joint have two movable blackboards 3, the medial surface fixed mounting of concave type carriage 1 has display screen guiding mechanism 4, movable blackboard moving mechanism 5 and complementary unit 6.
The display screen adjusting mechanism 4 comprises a threaded rod 7 and a support plate 8, the upper end of the threaded rod 7 is rotatably connected to the top of the inner side surface of the concave support frame 1 through the matching of a bearing, the lower end of the threaded rod 7 penetrates through the lower surface of the concave support frame 1 and is fixedly connected with a rotary adjusting button 9, the support plate 8 is fixedly connected to the top of the inner side surface of the concave support frame 1, the lower end of the support plate 8 is rotatably connected with two linkage arms 10 through a pin shaft, one ends of the two linkage arms 10 far away from the support plate 8 are hinged with a mounting plate 11, the display screen 2 is fixedly mounted on the mounting plate 11, one side of the mounting plate 11 far away from the display screen 2 is fixedly connected with a linkage plate 12, the upper surface and the lower surface of the linkage plate 12 are provided with mutually communicated chutes 13, the linkage plate 13 is connected with a sliding block 14 in a left-right, the threaded rod 7 is rotated by rotating the rotary adjusting button 9, the slider 14 is synchronously moved downwards by the rotation process of the threaded rod 7 and the matching of the threaded rod 7 and the slider 14 in a threaded transmission way, the mounting plate 11 is made to circularly move by taking a hinge point between the linkage arm 10 and the supporting plate 8 as a circle center by the downward movement process of the slider 14 and the sliding matching process between the linkage arm 10 and the slider 14 and the sliding chute 13, the mounting plate 11 is always perpendicular to a horizontal line in the circular movement process due to the arrangement of the two linkage arms 10, so that after the lower surface of the display screen 26 is abutted to the bottom of the inner side surface of the concave supporting frame 1 and replaces the positions of the two movable blackboards 3, the rotary adjusting button 9 is loosened, the display screen 26 is coplanar with the two fixed blackboards 2 for use, and when the device is installed in advance, the two movable blackboards 3 are positioned at the center of the whole blackboards, therefore, the position is an excellent position for the students to observe the screen, and the display screen 26 is used for replacing the positions of the two movable blackboards 3, so that the students can observe the screen more clearly.
Further, the movable blackboard moving mechanism 5 comprises a straight-tooth cylinder 15, a rack row 16, two rectangular frames 17, two rack plates 18, two guide grooves 19 and two sliding columns 20, the upper end of the straight-tooth cylinder 15 is rotatably connected to the top of the inner side surface of the concave-shaped support frame 1 in a matched manner through a bearing, the rack row 16 is fixedly connected to one side, close to the straight-tooth cylinder 15, of the linkage plate 12, the rack row 16 is connected with the straight-tooth cylinder 15 in a meshed manner, the two rectangular frames 17 are fixedly connected to the bottom of the inner side surface of the concave-shaped support frame 1, the two rack plates 18 respectively penetrate through the inner side surfaces of the two rectangular frames 17 and are respectively connected with the straight-tooth cylinder 15 in a meshed manner, one sides, close to the movable blackboard 3, of the two rack plates 18 are respectively and fixedly connected with connecting rods 21, one sides, far away from the rack plates 18, of the two connecting rods 21 are respectively and fixedly connected with the two movable blackboards 3, the two guide grooves 19 are respectively arranged at the bottom of the inner side surface of the concave-shaped support frame 1, the guide groove 19 comprises an oblique groove 191 and a longitudinal groove 192, the oblique groove 191 is communicated with the longitudinal groove 192, the two sliding columns 20 are respectively fixedly connected to the lower surfaces of the two movable blackboards 3 and respectively slide along the groove walls of the two guide grooves 19, the abutting surfaces of the fixed blackboards 2 and the movable blackboards 3 are obliquely arranged, the oblique angles of the abutting surfaces are consistent with the oblique angles of the oblique grooves 191, the straight-tooth cylinders 15 rotate in the process of circular motion of the mounting plate 11 and the meshing transmission process between the rack rows 16 and the straight-tooth cylinders 15 through the sliding fit process between the sliding blocks 14 and the sliding grooves 13, the two rack plates 18 respectively move along the opposite directions of the inner side surfaces of the two rectangular frames 17 through the meshing transmission process between the straight-tooth cylinders 15 and the two rack plates 18, the process of moving the two rack plates 18 respectively along the opposite directions and the process of sliding the sliding columns 20 sliding along the groove walls of the guide grooves 19 through the linkage of the connecting rods 21, the movable blackboard 3 is moved toward the pressing block 24, so that the two movable blackboards 3 are made to vacate the position of the display screen 26, and the display screen 25 replaces the positions of the two movable blackboards 3.
Further, the auxiliary mechanism 6 comprises two connecting blocks 22, the two connecting blocks 22 slide left and right along the inner wall of the concave-shaped supporting frame 1, one side of each of the two connecting blocks 22 close to the movable blackboard 3 is fixedly connected with a linkage rod 23, one side of each of the two linkage rods 23 close to the movable blackboard 3 extends into the inner side surface of the concave-shaped supporting frame 1 and is fixedly connected with a pressing block 24, one end of each of the two connecting blocks 22 far away from the linkage rod 23 is fixedly connected with a storage box 25, the right side of the concave-shaped supporting frame 1 close to the bottom of the concave-shaped supporting frame is provided with an opening for extending out the storage box 25, one side of the storage box 25 close to the connecting block 22 is fixedly connected with an extension spring 28, the extension spring 28 is fixedly connected with the inner wall of the concave-shaped supporting frame 1, the two movable blackboards 3 in the graph 7 are respectively abutted to the two pressing blocks 24 at the moment, and the sliding column 20 enters the longitudinal groove 192, thereby, along with the process of continuously rotating the rotary adjusting button 9, the two movable blackboards 3 respectively press the two press blocks 24, so that the two press blocks 24 move towards the fixed blackboard 2, and the process of moving towards the fixed blackboard 2 by the two press blocks 24 is linked by the connecting block 22 and the linkage rod 23, so that the storage box 25 extends out of the concave supporting frame 1 and is close to the opening arranged at the right side of the bottom of the concave supporting frame, thereby facilitating the taking out of a series of articles (such as a remote control pen or a remote controller of the display screen 26) used by matching with the display screen 26 from the storage box 25, the process of extending out of the opening of the storage box 25 is the process that the state shown in the figure 6 is started until the linkage arm 10 is parallel to the horizontal line in the figure 6, and finally, the rotary adjusting button 9 is continuously rotated again, because the process that the linkage arm 10 rotates clockwise along with the direction shown in the figure 6 when the rotation state is started that the linkage arm 10 is parallel to the horizontal line, the linkage plate 12 moves towards the direction of the straight-tooth cylinder 15, so that the straight-tooth cylinder 15 starts to rotate reversely, the two movable blackboards 3 return to the state shown in fig. 7 again, and the article storage box 25 is retracted into the opening again by using the elastic restoring force of the extension spring 28, so that the article storage box 25 can achieve the hiding effect after articles are taken out; when not using display screen 26, only need to adjust knob 9 soon through the reverse rotation, make the equal reverse rotation of above-mentioned mechanism and return to the state shown in fig. 1, this in-process puts thing box 25 and will stretch out the opening again, thereby can put a series of article that cooperation display screen 26 used back again and put thing box 25 interior storage, and after the storage, put thing box 25 and withdraw in the opening equally, reach hidden effect, avoided colliding on the one hand and put thing box 25 phenomenon, on the other hand is through adjusting knob 9 in-process soon in rotation, put thing box 25 and stretch out the opening earlier, then the process of hiding, reminded the operator and taken out or deposit article, and can avoid losing when depositing.
Furthermore, the bottom of the inner side surface of the concave supporting frame 1 is provided with a dust collecting groove 27, and dust generated in the process of writing the chalk on the blackboard can be conveniently collected through the dust collecting groove 27.
In conclusion, the process of rotating the rotary adjusting button 9 is provided, so that the display screen 26 replaces the positions of the two movable blackboards 3, the display screen 26 is coplanar with the two fixed blackboards 2 for use, the two movable blackboards 3 are positioned at the center of the whole blackboard, and the position belongs to the best position for the students to observe the screen, and the display screen 26 replaces the positions of the two movable blackboards 3, so that the students can observe the screen more clearly, thereby solving the problems that in the prior art, a teacher often pushes a movable support with the display screen 26, then moves the display screen 26 to the center of the blackboards so that the students can observe the content on the display screen 26, but the support is troublesome to move and fix the display screen 26 back and forth, and in the process of moving the display screen 26 to the center of the blackboards, the height of the display screen 26 needs to be adjusted correspondingly according to the heights of the different blackboards, the operation is troublesome.
The working principle is as follows: when the computer teaching rotary adjusting teaching display needs to use the display screen 26, the threaded rod 7 is rotated by rotating the rotary adjusting button 9, the slide block 14 synchronously moves downwards in the rotating process of the threaded rod 7 and in the thread transmission fit between the threaded rod 7 and the slide block 14, the slide block 14 moves downwards in the downward process, the mounting plate 11 performs circular motion by taking a hinge point between the linkage arm 10 and the support plate 8 as a circle center through the linkage of the two linkage arms 10 and the sliding fit process between the slide block 14 and the slide groove 13, the two linkage arms 10 are arranged, so that the mounting plate 11 is always perpendicular to a horizontal line in the circular motion process, the mounting plate 11 performs circular motion and in the meshing transmission process between the slide block 14 and the slide groove 13 and between the rack row 16 and the straight tooth cylinder 15, so that the straight tooth cylinder 15 rotates, the two rack plates 18 respectively move along the inner side surfaces of the two rectangular frames 17 in the opposite directions through the rotation process of the straight-tooth cylinders 15 and the meshing transmission process between the straight-tooth cylinders 15 and the two rack plates 18, the movable blackboard 3 moves towards the direction of the pressing blocks 24 through the process that the two rack plates 18 respectively move in the opposite directions and the linkage of the connecting rods 21 and the process that the sliding columns 20 slide along the groove walls of the guide grooves 19, and then the two movable blackboards 3 in the figure 7 respectively abut against the two pressing blocks 24 and the sliding columns 20 enter the longitudinal grooves 192, so that the two movable blackboards 3 respectively abut against the two pressing blocks 24 along with the process of continuously rotating the adjusting button 9, the two pressing blocks 24 move towards the direction of the fixed blackboard 2, the process that the two pressing blocks 24 move towards the direction of the fixed blackboard 2 and the linkage of the connecting blocks 22 and the linkage rods 23 are carried out through the process that the straight-tooth cylinders 15 and the two rack plates 18 respectively move in the opposite directions, the object placing box 25 extends out of the concave supporting frame 1 and is close to the opening formed at the right side of the bottom of the concave supporting frame, so that a series of articles (such as a remote control pen or a remote controller of a display screen 26) matched with the display screen 26 and used by being taken out from the object placing box 25 can be conveniently taken out, the process that the object placing box 25 extends out of the opening is that the state shown in figure 6 is started until the linkage arm 10 is parallel to a horizontal line in figure 6, and finally the rotary adjusting button 9 is continuously rotated again, because the rotary state is started when the linkage arm 10 is parallel to the horizontal line, then the linkage arm 10 rotates clockwise in the direction shown in figure 6, the linkage plate 12 moves towards the direction of the straight-tooth cylinder 15, so that the straight-tooth cylinder 15 starts to rotate reversely, and then the two movable blackboards 3 return to the state shown in figure 7 again, and the object placing box 25 is retracted into the opening again by utilizing the elastic restoring force of the extension spring 28, therefore, after the articles are taken out, the article placing box 25 can achieve the hiding effect, the lower surface of the display screen 26 is abutted to the bottom of the inner side surface of the concave supporting frame 1 and replaces the positions of the two movable blackboards 3, and the display screen 26 and the two fixed blackboards 2 are coplanar so as to be convenient to use; when not using display screen 26, only need to adjust knob 9 soon through the reverse rotation, make the equal reverse rotation of above-mentioned mechanism and return to the state shown in fig. 1, this in-process puts thing box 25 and will stretch out the opening again, thereby can put a series of article that cooperation display screen 26 used back again and put thing box 25 interior storage, and after the storage, put thing box 25 and withdraw in the opening equally, reach hidden effect, avoided colliding on the one hand and put thing box 25 phenomenon, on the other hand is through adjusting knob 9 in-process soon in rotation, put thing box 25 and stretch out the opening earlier, then the process of hiding, reminded the operator and taken out or deposit article, and can avoid losing when depositing.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (2)

1. The utility model provides a computer teaching is with transferring teaching display soon, includes concave type carriage (1) and display screen (26), its characterized in that: the bottom of the inner side surface of the concave supporting frame (1) is fixedly connected with two fixed blackboards (2), the bottom of the inner side surface of the concave supporting frame (1) is also movably connected with two movable blackboards (3), and the inner side surface of the concave supporting frame (1) is fixedly provided with a display screen adjusting mechanism (4), a movable blackboard moving mechanism (5) and an auxiliary mechanism (6);
the display screen adjusting mechanism (4) comprises a threaded rod (7) and a supporting plate (8), the upper end of the threaded rod (7) is rotatably connected to the top of the inner side surface of the concave type supporting frame (1) through bearing cooperation, the lower end of the threaded rod (7) penetrates through the lower surface of the concave type supporting frame (1) and is fixedly connected with a rotary adjusting button (9), the supporting plate (8) is fixedly connected to the top of the inner side surface of the concave type supporting frame (1), the lower end of the supporting plate (8) is rotatably connected with two linkage arms (10) through a pin shaft, one ends, far away from the supporting plate (8), of the two linkage arms (10) are hinged to a mounting plate (11), the display screen (26) is fixedly mounted on the mounting plate (11), one side, far away from the display screen (26), of the mounting plate (11) is fixedly connected with a linkage plate (12), and mutually-through sliding grooves (13) are formed in the upper surface and the lower surface of the linkage plate (12), the linkage plate (12) is connected with a sliding block (14) in a left-right sliding mode through a sliding groove (13), the upper surface and the lower surface of the sliding block (14) are provided with threaded through holes which are mutually communicated, and the sliding block (14) is in threaded connection with the external threads of the threaded rod (7) through the threaded through holes;
the movable blackboard moving mechanism (5) comprises a straight-tooth cylinder (15), a rack row (16), two rectangular frames (17), two rack plates (18), two guide grooves (19) and two sliding columns (20), wherein the upper end of the straight-tooth cylinder (15) is rotatably connected to the top of the inner side surface of the concave-shaped supporting frame (1) through bearing matching, the rack row (16) is fixedly connected to one side, close to the straight-tooth cylinder (15), of a linkage plate (12), the rack row (16) is connected with the straight-tooth cylinder (15) in a meshed mode, the rectangular frames (17) are fixedly connected to the bottom of the inner side surface of the concave-shaped supporting frame (1), the rack plates (18) penetrate through the inner side surfaces of the two rectangular frames (17) respectively and are connected with the straight-tooth cylinders (15) in a meshed mode, the rack plates (18) are fixedly connected with connecting rods (21) on one side, close to the movable blackboard (3), one sides, far away from the rack plate (18), of the two connecting rods (21) are fixedly connected with the two movable blackboards (3) respectively, the two guide grooves (19) are formed in the bottoms of the inner side surfaces of the concave support frames (1), and the two sliding columns (20) are fixedly connected to the lower surfaces of the two movable blackboards (3) respectively and slide along the groove walls of the two guide grooves (19) respectively;
the guide groove (19) comprises an oblique groove (191) and a longitudinal groove (192), and the oblique groove (191) is communicated with the longitudinal groove (192);
the abutting surfaces of the fixed blackboard (2) and the movable blackboard (3) are arranged in an inclined mode, and the inclined angle of the abutting surfaces is consistent with that of the inclined groove (191);
the auxiliary mechanism (6) comprises two connecting blocks (22), the two connecting blocks (22) slide left and right along the inner wall of the concave type supporting frame (1), the two connecting blocks (22) are fixedly connected with linkage rods (23) at one sides close to the movable blackboard (3), one sides of the two linkage rods (23) close to the movable blackboard (3) extend into the inner side face of the concave type supporting frame (1) and are fixedly connected with pressing blocks (24), and the two connecting blocks (22) are fixedly connected with object placing boxes (25) at one ends far away from the linkage rods (23), the right side of the concave supporting frame (1) close to the bottom thereof is provided with an opening for extending the storage box (25), one side of the storage box (25) close to the connecting block (22) is fixedly connected with an extension spring (28), the extension spring (28) is fixedly connected with the inner wall of the concave supporting frame (1);
two activity blackboard (3) butt respectively receive two suppress piece (24), and sliding column (20) have got into in longitudinal groove (192), thereby be the process of adjusting button (9) soon along with continuing to rotate, make two activity blackboard (3) butt respectively two suppress piece (24), make two suppress piece (24) to fixed blackboard (2) direction removes, by two suppress piece (24) to the process that fixed blackboard (2) direction removed and warp connecting block (22) with the linkage of gangbar (23), make it stretches out to put thing box (25) the opening that concave type carriage (1) was seted up near its bottom right side.
2. The rotary tone teaching display for computer teaching according to claim 1, wherein: the bottom of the inner side surface of the concave supporting frame (1) is provided with a dust collecting groove (27).
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