CN115719551B - Teaching board is used in intelligence teaching - Google Patents
Teaching board is used in intelligence teaching Download PDFInfo
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- CN115719551B CN115719551B CN202211511021.0A CN202211511021A CN115719551B CN 115719551 B CN115719551 B CN 115719551B CN 202211511021 A CN202211511021 A CN 202211511021A CN 115719551 B CN115719551 B CN 115719551B
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Abstract
The invention discloses an intelligent teaching board, which relates to the technical field of teaching boards and comprises a teaching board frame, writing boards arranged on two sides of the inside of a notch of the teaching board frame and a touch display screen arranged in the middle of the notch of the teaching board frame, wherein a storage groove board is arranged at the bottom of the teaching board frame, a covering drawing board is arranged between partition boards, and an adjusting mechanism is arranged in the writing boards; a pushing component is arranged in the teaching board frame body; the inner sides of the rear end surfaces of the covering type drawing boards are vertically fixedly connected with wiping sponge strips; a chalk eraser strip is vertically arranged on the inner wall of the front end of the inner end of the stabilizing strip opening; according to the invention, through the matching of the writing board, the touch display screen and the covering type drawing board, the diversity and convenience of the use of the teaching board are improved, and the situation that the side surface of the touch display screen arranged in the teaching board frame body is blocked during watching is avoided; meanwhile, the touch display screen when not in use can be protected and covered, and the phenomenon that dust is adsorbed on the screen of the touch display screen due to static electricity is avoided.
Description
Technical Field
The invention relates to the technical field of teaching boards, in particular to an intelligent teaching board.
Background
The teaching board is a common teaching device in the current teaching, and provides great convenience for the preparation and teaching of teachers because of the portability and portability. The teacher can write the main content to be taught on the movable teaching board in advance, so that the time of writing on the board during the teaching is saved, and the teaching efficiency of the classroom is improved;
at present, the teaching board has larger limitations, such as: the conventional blackboard is more common and still is a conventional blackboard, the conventional blackboard is inconvenient to play and display teaching videos made by teachers on the blackboard due to single function, on one hand, teaching of teachers is not convenient and efficient, on the other hand, along with technological development, intelligent campuses and intelligent classrooms are gradually applied and developed, the conventional blackboard is difficult to meet development requirements of intellectualization and multifunctionalization, and more display screens are embedded in the middle of the blackboard, when contents on the display screens are watched, the peripheral blackboard of the display screens can shield the periphery of the screen, so that watching effects of front-row classmates are influenced, and the teaching mode is monotonous, so that the requirements of more intelligent and efficient teaching at present and in the future are not facilitated; therefore, an improvement is required to deal with the above problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides an intelligent teaching board for teaching.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the utility model provides an intelligent teaching is with teaching board, includes teaching board framework, installs the clipboard in the inside both sides of terminal surface notch before the teaching board framework and installs the touch-control display screen at terminal surface notch middle part before the teaching board framework, the front end bottom horizontal installation of teaching board framework accomodates the frid, the clipboard is the box form structure that the notch is backward, the equal vertical rigid coupling in middle part both sides in the teaching board framework notch has the baffle, be equipped with the covering type drawing board of a pair of inner mutual butt between the baffle, the notch inside of clipboard is equipped with the adjustment mechanism that is used for covering type drawing board to remove to accomodate; a pushing component for moving the touch display screen forward is arranged in the teaching board frame body behind the touch display screen; the four corners of the rear end face of the writing board are longitudinally provided with fixed pore canals, an electric pushing cylinder is longitudinally arranged in each fixed pore canal, and the rear part of the fixed end of the electric pushing cylinder is fixedly connected with the inner wall of a notch of the teaching board frame body;
the front end of the inner side surface of the partition board is matched with the covered drawing board to form a stable strip opening communicated with the notch in the writing board, and the outer end of the covered drawing board movably extends into the notch in the writing board from the stable strip opening; the inner sides of the rear end surfaces of the covering type drawing boards are vertically fixedly connected with wiping sponge strips for cleaning the screen of the touch display screen; a chalk eraser strip for cleaning the front end surface of the covered drawing board is vertically arranged on the inner wall of the front end of the inner end of the stabilizing strip opening; the inner end surfaces of the covering type drawing boards are in a step surface shape, and the step surfaces at the inner ends of the two covering type drawing boards are mutually matched and meshed.
Preferably, the pushing assembly comprises a forward moving plate vertically and movably arranged at the rear of the touch display screen, a mounting groove formed in the middle of the inner wall of the rear end of a notch of the teaching board frame body, a bidirectional screw rod transversely and rotatably arranged in the mounting groove, threaded pipes movably sleeved on two sides of a rod body in the middle of the bidirectional screw rod, and a pushing rod movably hinged to the front end surface of the threaded pipe, wherein the front end of the pushing rod is movably hinged to the side of the rear end surface of the forward moving plate; the touch display screen is arranged on the front end face of the forward moving plate.
Preferably, the upper parts of the two sides of the forward moving plate are respectively provided with a fixed groove, the inside of the fixed groove is horizontally fixedly connected with a spring telescopic rod, the outside of the telescopic end of the spring telescopic rod is provided with a stabilizing guide wheel, the upper end and the lower end of the rear part of the inner side surface of the partition plate are respectively and longitudinally provided with a guide wheel bar groove, and the front end and the rear end in the guide wheel bar groove are respectively provided with an arc-shaped limiting groove; the outer wheel body of the stabilizing guide wheel is abutted in the guide wheel bar groove.
Preferably, the adjusting mechanism comprises a fixed plate fixedly arranged on the outer side of the inner wall of the front end of the writing board notch, a screw rod horizontally rotatably arranged on the inner side surface of the fixed plate and a servo motor arranged on the edge of the inner wall of the front end of the writing board notch, wherein a transmission cavity is formed in one fixed plate, and a transmission assembly for driving the pushing assembly is arranged in the transmission cavity; the screw rod on the other fixed plate is coaxially and fixedly connected with the driving shaft of the other servo motor; the outer end face of the covering type drawing board, which is positioned in the notch of the writing board, is vertically fixedly connected with a limiting plate, a threaded hole channel extending to the inside of the covering type drawing board is formed in the outer side face of the limiting plate, and the rod body of the screw rod is in threaded connection with the inside of the threaded hole channel; the outer side surface of one limiting plate horizontally rotates to be provided with a rotating rod, and the outer end of the rotating rod is fixedly connected with a transmission bevel gear matched with a transmission assembly.
Preferably, the transmission assembly comprises a movable plate vertically movably arranged in the transmission cavity, a spline shaft vertically rotating to penetrate through a rear end plate body of the movable plate, a pair of electric push rods transversely embedded in the front end of the inner wall of one side of the transmission cavity, a transmission rod longitudinally rotating to be arranged on the inner wall of the rear end of the transmission cavity and a driven shaft rotating to one side of the notch inner wall of the teaching plate frame body, a driven cavity is formed in the teaching plate frame body at the rear end of the driven shaft, the rear end of the driven shaft movably penetrates through the inside of the driven cavity, a worm is coaxially fixedly connected with the rear end of the driven shaft, one end of the bidirectional screw rod movably penetrates through the inside of the driven cavity, and a worm wheel meshed with the worm is arranged on the bidirectional screw rod; the telescopic end of the electric push rod is fixedly connected with the front end of one side surface of the movable plate, and the rear end of the inner side surface of the other fixed plate is provided with a touch switch which is electrically connected with the electric push rod;
preferably, a first spline groove is longitudinally formed in the inner end face of the driving shaft of the other servo motor, a second spline groove is formed in the end face of the screw rod positioned in the transmission cavity, one end of the spline shaft is movably inserted into the first spline groove, and the depth of the first spline groove is twice that of the second spline groove; a driving shaft of the other servo motor movably penetrates into the transmission cavity and is fixedly sleeved with a first bevel gear; the front end of the transmission rod is fixedly connected with a second bevel gear meshed with the first bevel gear, the rear end of the transmission rod movably penetrates out of the transmission cavity and is fixedly connected with a third bevel gear matched with the transmission bevel gear, and the front end of the driven shaft is fixedly connected with a fourth bevel gear matched with the transmission bevel gear.
Preferably, the chalk eraser strip consists of an L-shaped strip plate and a pure cotton cloth plate, and the erasing sponge strip is made of sponge of hydrophilic polyurethane.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, through the matching of the writing board, the touch display screen and the covering type drawing board, the diversity and convenience of using the teaching board in teaching are improved, meanwhile, video contents to be displayed in teaching can be played and displayed through the touch display screen, the forward moving operation of the touch display screen can be performed, and the situation that the side face of the touch display screen arranged in the teaching board frame is blocked in watching is avoided; meanwhile, students can write and paint on the writing board and the covering type drawing board with the opening by using chalks, and meanwhile, the touch display screen can be protected and covered when not in use, and the touch display screen after or before use can be wiped, so that dust absorption caused by static electricity on the screen of the touch display screen is avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
FIG. 1 is a schematic view of a front view covering type drawing board enclosed structure of the present invention;
FIG. 2 is a front view of an exposed structure of a touch display screen according to the present invention;
FIG. 3 is a cross-sectional view of a top view of the teaching board frame of the present invention;
FIG. 4 is a cross-sectional view of an expanded top view of a writing board and a covering type drawing board of the present invention;
FIG. 5 is a cross-sectional view of a retractable top view of the writing board and covering drawing board of the present invention;
FIG. 6 is an enlarged cross-sectional view of the structure at location A of FIG. 4 in accordance with the present invention;
fig. 7 is an enlarged cross-sectional view of the structure of fig. 5 at B in accordance with the present invention.
Number in the figure: 1. a teaching board frame; 2. a writing board; 3. a touch display screen; 4. a covering type drawing board; 5. a storage groove plate; 6. a forward moving plate; 7. a bidirectional screw rod; 8. a threaded tube; 9. a push rod; 10. wiping the sponge strip; 11. a fixing plate; 12. a screw rod; 13. a servo motor; 14. an electric pushing cylinder; 15. a chalk eraser strip; 16. a limiting plate; 17. driving bevel gear; 18. a moving plate; 19. a spline shaft; 20. an electric push rod; 21. a transmission rod; 22. a driven shaft; 23. a touch switch; 24. stabilizing the guide wheel.
Description of the embodiments
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.
Examples: referring to fig. 1 to 7, an intelligent teaching board for teaching comprises a teaching board frame 1, a writing board 2 arranged on two sides of the notch of the front end face of the teaching board frame 1 and a touch display screen 3 arranged in the middle of the notch of the front end face of the teaching board frame 1, wherein a storage groove board 5 is horizontally arranged at the bottom of the front end of the teaching board frame 1, the writing board 2 is of a box-shaped structure with a rearward notch, two sides of the middle in the notch of the teaching board frame 1 are vertically fixedly connected with a partition board, a pair of covering drawing boards 4 with inner ends mutually abutted are arranged between the partition boards, and an adjusting mechanism for moving and storing the covering drawing boards 4 is arranged in the notch of the writing board 2; a pushing component for moving the touch display screen 3 forward is arranged in the teaching board frame body 1 behind the touch display screen 3; four corners of the rear end surface of the writing board 2 are longitudinally provided with fixed pore canals, an electric pushing cylinder 14 is longitudinally arranged in each fixed pore canal, and the rear part of the fixed end of the electric pushing cylinder 14 is fixedly connected with the inner wall of the notch of the teaching board frame body 1; the front end of the inner side surface of the partition board is matched with the covered drawing board 4 to form a stable strip opening communicated with the notch in the writing board 2, and the outer end of the covered drawing board 4 movably extends into the notch in the writing board 2 from the stable strip opening; the inner sides of the rear end surfaces of the covering type drawing boards 4 are vertically fixedly connected with wiping sponge strips 10 for cleaning the screen of the touch display screen 3; the wiping sponge strip 10 is made of hydrophilic polyurethane sponge, a chalk wiping strip 15 for cleaning the front end surface of the covered drawing board 4 is vertically arranged on the inner wall of the front end of the inner end of the stabilizing strip opening, and the chalk wiping strip 15 consists of an L-shaped strip plate and a pure cotton cloth plate; the inner end surfaces of the cover-type drawing boards 4 are in a ladder-shaped surface, and the ladder-shaped surfaces at the inner ends of the two cover-type drawing boards 4 are mutually matched and meshed; according to the invention, through the matching of the writing board 2, the touch display screen 3 and the covering type drawing board 4, the diversity and convenience of the teaching board in use are improved, meanwhile, the content of the video screen to be displayed in teaching can be played and displayed through the touch display screen 3, the forward moving operation of the touch display screen 3 can be carried out, and the situation that the side surface of the touch display screen 3 arranged in the teaching board frame body 1 is blocked in watching is avoided; meanwhile, students can write and paint on the writing board 2 and the covering drawing board 4 with the opening by using chalks, and meanwhile, the touch display screen 3 can be protected and covered when not in use, and the screen of the touch display screen 3 after or before use can be wiped, so that dust absorption caused by static electricity on the screen of the touch display screen 3 is avoided.
In the invention, the pushing component comprises a forward moving plate 6 vertically and movably arranged at the rear of the touch display screen 3, a mounting groove arranged in the middle of the inner wall of the rear end of a notch of the teaching board frame 1, a bidirectional screw rod 7 transversely and rotatably arranged in the mounting groove, a threaded pipe 8 movably sleeved on two sides of a rod body in the middle of the bidirectional screw rod 7, and a pushing rod 9 movably hinged on the front end surface of the threaded pipe 8, wherein the front end of the pushing rod 9 is movably hinged with the side of the rear end surface of the forward moving plate 6; the touch display screen 3 is arranged on the front end surface of the forward moving plate 6; the upper parts of the two sides of the forward moving plate 6 are respectively provided with a fixed groove, the inside of the fixed groove is horizontally fixedly connected with a spring telescopic rod, the outer part of the telescopic end of the spring telescopic rod is provided with a stabilizing guide wheel 24, the upper end and the lower end of the rear part of the inner side surface of the partition plate are respectively and longitudinally provided with a guide wheel bar groove, and the front end and the rear end in the guide wheel bar groove are respectively provided with an arc-shaped limiting groove; the outer wheel body of the stabilizing guide wheel 24 abuts in the guide bar groove.
In the invention, the regulating mechanism comprises a fixed plate 11 fixedly arranged on the outer side of the inner wall of the front end of a notch of the writing board 2, a screw rod 12 horizontally rotatably arranged on the inner side surface of the fixed plate 11 and a servo motor 13 arranged on the edge of the inner wall of the front end of the notch of the writing board 2, wherein a transmission cavity is formed in one fixed plate 11, and a transmission component for driving a pushing component is arranged in the transmission cavity; the screw rod 12 on the other fixed plate 11 is coaxially and fixedly connected with the driving shaft of the other servo motor 13; the outer end surface of the covering type drawing board 4, which is positioned in the notch of the writing board 2, is vertically fixedly connected with a limiting plate 16, the outer side surface of the limiting plate 16 is provided with a threaded hole channel extending to the inside of the covering type drawing board 4, and the rod body of the screw rod 12 is in threaded connection with the inside of the threaded hole channel; a rotating rod is horizontally arranged on the outer side surface of one limiting plate 16 in a rotating way, and a transmission bevel gear 17 matched with the transmission assembly is fixedly connected to the outer end of the rotating rod.
In the invention, the transmission assembly comprises a movable plate 18 vertically movably arranged in a transmission cavity, a spline shaft 19 vertically rotatably penetrating through a rear end plate body of the movable plate 18, a pair of electric push rods 20 transversely embedded in the front end of the inner wall of one side of the transmission cavity, a transmission rod 21 longitudinally rotatably arranged on the inner wall of the rear end of the transmission cavity and a driven shaft 22 longitudinally rotating one side of the notch inner wall of the teaching plate frame 1, wherein the inside of the teaching plate frame 1 at the rear end of the driven shaft 22 is provided with a driven cavity, the rear end of the driven shaft 22 movably penetrates into the driven cavity and is coaxially and fixedly connected with a worm, one end of a bidirectional lead screw 7 movably penetrates into the driven cavity and is provided with a worm wheel meshed with the worm; the telescopic end of the electric push rod 20 is fixedly connected with the front end of one side surface of the movable plate 18, the rear end of the inner side surface of the other fixed plate 11 is provided with a touch switch 23, and the touch switch 23 is electrically connected with the electric push rod 20; a first spline groove is longitudinally formed in the inner end face of the driving shaft of the other servo motor 13, a second spline groove is formed in the end face of the screw rod 12 positioned in the transmission cavity, one end of the spline shaft 19 is movably inserted into the first spline groove, the other end of the spline shaft 19 is inserted into the second spline groove when the covering type drawing board 4 is unfolded, the other end of the spline shaft 19 is withdrawn from the second spline groove when the covering type drawing board 4 is stored, and the depth of the first spline groove is twice as high as that of the second spline groove; the driving shaft of the other servo motor 13 movably penetrates into the transmission cavity and is fixedly sleeved with a first bevel gear; the front end of the transmission rod 21 is fixedly connected with a second bevel gear meshed with the first bevel gear, the rear end of the transmission rod 21 movably penetrates out of the transmission cavity and is fixedly connected with a third bevel gear matched with the transmission bevel gear 17, and the front end of the driven shaft 22 is fixedly connected with a fourth bevel gear matched with the transmission bevel gear 17.
Working principle: in this embodiment, the invention also provides a use method of the intelligent teaching board, which includes the following steps: the application method of the teaching board comprises the following steps:
firstly, the touch display screen 3, the servo motor 13, the electric push cylinder 14 and the electric push rod 20 are respectively and electrically connected with external control equipment through leads, when the touch display screen 3 is not used, the covering type drawing board 4 covers the touch display screen 3, the protection effect on the unused touch display screen 3 is achieved, and the drawing operation can be carried out by chalk through the unfolded covering type drawing board 4;
when the touch display screen 3 is required to be used, the lead screw 12 is driven to rotate reversely by starting the servo motor 13, the covered drawing board 4 is driven to move towards the notch of the writing board 2 by the reverse rotation of the lead screw 12 so as to enable the covered drawing board 4 to cancel the covering of the touch display screen 3, and meanwhile, the reverse rotation driving of the two servo motors 13 is stopped, and meanwhile, in order to prevent the touch display screen 3 arranged in the teaching board frame 1 from influencing the watching effect of the periphery of the screen when in use, when one of the covered drawing boards 4 moves into the notch of the writing board 2, the limit board 16 is enabled to perform touch operation on the touch switch 23, the electric push rod 20 is enabled to extend by the touch switch 23 so as to drive the moving board 18 and the spline shaft 19 to move through the extended electric push rod 20, one end of the covered drawing board 4 is conveniently disconnected from the second spline groove by the movement of the spline shaft 19, and at the moment, the transmission bevel teeth 17 on the limit board 16 are meshed with the third bevel teeth and the fourth bevel teeth so as to automatically drive the driven shaft 22 when the rotation of one of the lead screw 12 is canceled;
step three, the servo motor 13 is continuously controlled to drive the first bevel gear to rotate, the transmission rod 21 is driven to rotate through the engagement of the first bevel gear and the second bevel gear, the driven shaft 22 is driven to rotate through the cooperation of the transmission rod 21 and the transmission bevel gear 17, the bidirectional screw rod 7 is driven to rotate through the cooperation of the worm and the worm wheel at the rear end of the driven shaft 22, the bidirectional screw rod 7 is driven to rotate reversely, the two threaded pipes 8 are conveniently moved outwards in opposite directions through the rotation of the bidirectional screw rod 7, the rear end of the push rod 9 is further driven to be outwards moved and unfolded, the forward moving plate 6 is conveniently pushed to move forwards through the unfolded push rod 9, the transmission of the servo motor 13 can be stopped after the stable guide wheels 24 at the two sides of the forward moving plate 6 are moved into the limit grooves in the guide wheel bar grooves, the front end face of the touch display 3 is flush with the front end face of the writing plate 2 at the moment, and the watching effect of the touch display 3 is improved when the touch display 3 is used;
step four, after the cover-type drawing board 4 is stored into the writing board 2, the cover-type drawing board 4 at this time can not limit the forward movement of the writing board 2, the writing board 2 is conveniently pushed to move out of the teaching board frame 1 by starting the electric push cylinder 14, so that convenience of the writing board 2 during modification is improved, in the process of storing the cover-type drawing board 4, the writing and painting trace on the front end face of the cover-type drawing board 4 is conveniently erased through the chalk eraser strip 15 in the stable strip opening, meanwhile, the wiping operation is performed on the screen of the touch display screen 3 after or before use through the wiping sponge strip 10 on the rear end face, and the phenomenon that dust is adsorbed due to static electricity on the screen of the touch display screen 3 is avoided.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (1)
1. The utility model provides an intelligent teaching is with teaching board, includes teaching board framework (1), installs clipboard (2) in the inside both sides of terminal surface notch before teaching board framework (1) and installs touch-control display screen (3) at terminal surface notch middle part before teaching board framework (1), its characterized in that: the front end bottom of the teaching board frame body (1) is horizontally provided with a storage groove plate (5), the writing board (2) is of a box-shaped structure with a backward notch, two sides of the middle part in the notch of the teaching board frame body (1) are vertically fixedly connected with partition boards, a pair of covering drawing boards (4) with inner ends mutually abutted are arranged between the partition boards, and an adjusting mechanism for moving and storing the covering drawing boards (4) is arranged in the notch of the writing board (2); a pushing component for moving the touch display screen (3) forward is arranged in the teaching board frame body (1) behind the touch display screen (3); the four corners of the rear end surface of the writing board (2) are longitudinally provided with fixed pore canals, an electric pushing cylinder (14) is longitudinally arranged in each fixed pore canal, and the rear part of the fixed end of the electric pushing cylinder (14) is fixedly connected with the inner wall of a notch of the teaching board frame body (1);
the front end of the inner side surface of the partition board is matched with the covered drawing board (4) to form a stable strip opening communicated with the notch in the writing board (2), and the outer end of the covered drawing board (4) movably extends into the notch in the writing board (2) from the stable strip opening; the inner sides of the rear end surfaces of the covering type drawing boards (4) are vertically fixedly connected with wiping sponge strips (10) for cleaning the screen of the touch display screen (3); a chalk eraser strip (15) for cleaning the front end surface of the covered drawing board (4) is vertically arranged on the inner wall of the front end of the inner end of the stabilizing strip opening; the inner end surfaces of the cover-type drawing boards (4) are in a step-shaped surface, and the step surfaces at the inner ends of the two cover-type drawing boards (4) are mutually matched and meshed;
the pushing assembly comprises a forward moving plate (6) vertically and movably arranged at the rear of the touch display screen (3), a mounting groove formed in the middle of the inner wall of the rear end of a notch of the teaching plate frame body (1), a bidirectional screw rod (7) transversely and rotatably arranged in the mounting groove, threaded pipes (8) movably sleeved on two sides of a rod body in the middle of the bidirectional screw rod (7) and a pushing rod (9) movably hinged to the front end surface of the threaded pipes (8), wherein the front end of the pushing rod (9) is movably hinged to the side of the rear end surface of the forward moving plate (6); the touch display screen (3) is arranged on the front end face of the forward moving plate (6);
the adjusting mechanism comprises a fixed plate (11) fixedly arranged on the outer side of the inner wall of the front end of the notch of the writing board (2), a screw rod (12) horizontally rotatably arranged on the inner side surface of the fixed plate (11) and a servo motor (13) arranged on the edge of the inner wall of the front end of the notch of the writing board (2), wherein a transmission cavity is formed in one fixed plate (11), and a transmission assembly for driving the pushing assembly is arranged in the transmission cavity; a screw rod (12) on the other fixed plate (11) is coaxially fixedly connected with a driving shaft of the other servo motor (13); the covering type drawing board (4) is positioned on the outer end face in the notch of the writing board (2), a limiting plate (16) is vertically fixedly connected to the outer end face of the writing board, a threaded hole channel extending to the inside of the covering type drawing board (4) is formed in the outer side face of the limiting plate (16), and a rod body of the screw rod (12) is in threaded connection with the inside of the threaded hole channel; a rotating rod is horizontally arranged on the outer side surface of one limiting plate (16) in a rotating way, and a transmission bevel gear (17) matched with the transmission assembly is fixedly connected to the outer end of the rotating rod;
the transmission assembly comprises a movable plate (18) vertically movably arranged in a transmission cavity, a spline shaft (19) vertically rotatably penetrating through a rear end plate body of the movable plate (18), a pair of electric push rods (20) transversely embedded in the front end of the inner wall at one side of the transmission cavity, a transmission rod (21) longitudinally rotatably arranged on the inner wall at the rear end of the transmission cavity and a driven shaft (22) longitudinally arranged at one side of the inner wall of a notch of the rotary teaching plate frame body (1), a driven cavity is formed in the teaching plate frame body (1) at the rear end of the driven shaft (22), the rear end of the driven shaft (22) movably penetrates into the driven cavity, a worm is coaxially fixedly connected with the rear end of the two-way screw rod (7) movably penetrates into the driven cavity, and a worm wheel meshed with the worm is arranged at one end of the two-way screw rod (7); the telescopic end of the electric push rod (20) is fixedly connected with the front end of one side of the movable plate (18), the rear end of the inner side surface of the other fixed plate (11) is provided with a touch switch (23), and the touch switch (23) is electrically connected with the electric push rod (20);
a first spline groove is longitudinally formed in the inner end face of the driving shaft of the other servo motor (13), a second spline groove is formed in the end face of the screw rod (12) positioned in the transmission cavity, one end of the spline shaft (19) is movably inserted into the first spline groove, and the depth of the first spline groove is twice that of the second spline groove; a driving shaft of the other servo motor (13) movably penetrates into the transmission cavity and is fixedly sleeved with a first bevel gear; the front end of the transmission rod (21) is fixedly connected with a second bevel gear meshed with the first bevel gear, the rear end of the transmission rod (21) movably penetrates out of the transmission cavity and is fixedly connected with a third bevel gear matched with the transmission bevel gear (17), and the front end of the driven shaft (22) is fixedly connected with a fourth bevel gear matched with the transmission bevel gear (17);
the upper parts of two sides of the forward moving plate (6) are respectively provided with a fixed groove, the inside of the fixed groove is horizontally fixedly connected with a spring telescopic rod, the outside of the telescopic end of the spring telescopic rod is provided with a stabilizing guide wheel (24), the upper end and the lower end of the rear part of the inner side surface of the partition plate are respectively and longitudinally provided with a guide wheel strip groove, and the front end and the rear end in the guide wheel strip groove are respectively provided with an arc-shaped limiting groove; the outer wheel body of the stabilizing guide wheel (24) is abutted in the guide wheel bar groove;
the chalk eraser strip (15) consists of an L-shaped strip plate and a pure cotton cloth plate, and the erasing sponge strip (10) is made of sponge of hydrophilic polyurethane;
the application method of the teaching board comprises the following steps:
firstly, a touch display screen (3), a servo motor (13), an electric push cylinder (14) and an electric push rod (20) are respectively and electrically connected with external control equipment through leads, when the touch display screen (3) is not used, a covering type drawing board (4) at the moment covers the touch display screen (3), the unused touch display screen (3) is protected, and writing and drawing operations can be carried out by chalk on the unfolded covering type drawing board (4);
when the touch display screen (3) is required to be used, the screw rod (12) is driven to rotate reversely by starting the servo motor (13), the covered drawing board (4) is driven to move towards the notch of the writing board (2) by the rotation of the screw rod (12), so that the covered drawing board (4) can cancel covering of the touch display screen (3), the reverse driving of the two servo motors (13) is stopped, the viewing effect of the periphery of the screen is prevented from being influenced when the touch display screen (3) arranged in the teaching board frame (1) is used, the limit plate (16) can perform touch operation on the touch switch (23) when one of the covered drawing boards (4) moves into the notch of the writing board (2), the electric push rod (20) is started to stretch, the moving plate (18) and the spline shaft (19) are driven by the stretched electric push rod (20), one end of the moving of the spline shaft (19) is convenient to disconnect one end of the spline from the second spline groove, and the transmission gear (17) on the driven shaft (16) is automatically meshed with the fourth gear (12) when the driven shaft (12) rotates;
step three, the servo motor (13) is continuously controlled to drive the first bevel gear to rotate, the transmission rod (21) is driven to rotate through the engagement of the first bevel gear and the second bevel gear, the driven shaft (22) is driven to rotate through the cooperation of the transmission rod (21) and the transmission bevel gear (17), the bidirectional screw (7) is driven to rotate through the cooperation of the worm at the rear end of the driven shaft (22) and the worm wheel, the two threaded pipes (8) are conveniently and oppositely moved outwards through the inversion of the bidirectional screw (7), the rear end of the push rod (9) is further driven to be outwards moved and unfolded, the forward moving plate (6) is conveniently pushed to move forwards through the unfolded push rod (9), after the stable guide wheels (24) at two sides of the forward moving plate (6) move into the limiting grooves in the guide wheel bar grooves, the transmission of the servo motor (13) can be stopped, the front end face of the touch display screen (3) is flush with the front end face of the writing plate (2), and the viewing effect of the touch display screen (3) is improved when the touch display screen is used;
step four, after the cover type drawing board (4) is stored into the writing board (2), the cover type drawing board (4) at the moment can not limit the forward movement of the writing board (2), the writing board (2) is conveniently pushed to move out of the teaching board frame body (1) through starting the electric push cylinder (14), convenience of the writing board (2) in modification is improved, in the storage process of the cover type drawing board (4), writing and painting marks on the front end face of the cover type drawing board (4) are conveniently erased through the chalk eraser strip (15) in the stable strip opening, and meanwhile, wiping operation is carried out on a touch control display screen (3) screen after use or before use through the sponge strip (10) on the rear end face of the chalk eraser strip, so that dust absorption caused by static electricity on the screen of the touch control display screen (3) is avoided.
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| CN115719551A (en) | 2023-02-28 |
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