CN211529561U - Colleges and universities' teaching management is with arranging lesson display device - Google Patents
Colleges and universities' teaching management is with arranging lesson display device Download PDFInfo
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- CN211529561U CN211529561U CN202020376657.9U CN202020376657U CN211529561U CN 211529561 U CN211529561 U CN 211529561U CN 202020376657 U CN202020376657 U CN 202020376657U CN 211529561 U CN211529561 U CN 211529561U
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Abstract
The utility model discloses a colleges and universities' teaching management is with arranging lesson display device, including display device, arrange lesson device, strutting arrangement, display device includes show board, partition groove, clipboard, location axle, can demonstrate a plurality of school timetables simultaneously, arrange the lesson device and include show tablet, installation piece, constant head tank, extension groove, fixed the knot, can form the school timetable through assembling with different row lesson device, strutting arrangement includes base, constructional rod, support frame, can be when guaranteeing device stability the angle of free adjustment show board, the utility model discloses can let the school timetable modify simply, the transmission of school timetable is accurate, and can cyclic utilization, reduces the loss of resource.
Description
Technical Field
The utility model belongs to the technical field of the show utensil improves, concretely relates to colleges and universities' teaching management is with arranging lesson display device.
Background
The school timetable is a simple form for students to know course arrangement, which is called a school timetable for short. The class schedule (abbreviated as class schedule) is divided into two types, one is used by students and the other is used by teachers. The school timetable used by students and the school timetable used by any lessee are both simple two-dimensional tables in design structure, basically have no difference, and only have different filled contents.
The existing school timetables are generally printed on paper directly after being finished and then are attached to a wall for display, the paper printed with the school timetables can be damaged when the school timetables attached to the wall move, a plurality of same school timetables need to be printed when the contents of the school timetables are displayed at multiple places, resource waste is serious, on the other hand, the printed school timetables are inconvenient to change, the change can cause the surfaces of the paper school timetables to be too whistle, so that useful information is covered, the reading by other people is inconvenient, meanwhile, the paper school timetables cannot be reused, and the paper school timetables are waste of paper.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a colleges and universities' teaching management is with arranging class display device for solve the technical problem that exists among the prior art, if: the existing school timetables are generally printed on paper directly after being finished and then are attached to a wall for display, the paper printed with the school timetables can be damaged when the school timetables attached to the wall move, a plurality of same school timetables need to be printed when the contents of the school timetables are displayed at multiple places, resource waste is serious, on the other hand, the printed school timetables are inconvenient to change, the change can cause the surfaces of the paper school timetables to be too whistle, so that useful information is covered, the reading by other people is inconvenient, meanwhile, the paper school timetables cannot be reused, and the paper school timetables are waste of paper.
In order to achieve the above object, the utility model adopts the following technical scheme:
a course arrangement display device for teaching management of colleges and universities comprises a display device, a course arrangement device and a supporting device;
the display device comprises a display board, partition grooves, writing boards and positioning shafts, wherein a plurality of vertical strip-shaped groove bodies are arranged on the front surface of the display board, a plurality of limiting grooves with the same size are formed in the strip-shaped groove bodies by partitioning the strip-shaped groove bodies through the partition grooves, the partition grooves are turned over in the direction close to the display board, a plurality of positioning shafts are transversely arranged on the back surface of the display board, the limiting grooves and the two writing boards form a school timetable area, the two writing boards are respectively arranged above the limiting grooves forming the school table area and on the side edge of one side of the limiting grooves, and a plurality of school timetable areas are arranged on the display board;
the course arrangement device comprises a display board, an installation block, a positioning groove, an extension groove and fixing buckles, the display board is connected with one end of the installation block, the positioning groove is arranged at the bottom end of the installation block, the positioning groove is turned over towards the direction close to the display board, the positioning groove is matched with the separation groove, the extension groove is hinged on one side, close to the display board, of the top end of the installation block, the extension groove is turned over towards the direction away from the display board, the positioning groove is matched with the extension groove, two fixing buckles are oppositely arranged at one ends, far away from the display board, of two sides of the installation block, the fixing buckles are made of hard plastics, the two fixing buckles extend obliquely towards the direction away from the installation block and close to the display board by taking a connection point of the installation block as a starting point, and the course arrangement device is placed in the limiting groove, the two fixing buckles are extruded and deformed by the inner wall of the limiting groove so as to achieve the fixing effect;
the supporting device comprises a base, a structural rod and a supporting frame, wherein the base is arranged on the ground or a display platform, one end of the structural rod is hinged to the base, the supporting frame is of a semicircular plate-shaped structure, a plurality of holes matched with the positioning shafts are formed in the side edge of the supporting frame, and the supporting frame can be in contact with the positioning shafts with a proper height to enable the display board to maintain a stable inclined state.
Furthermore, a plurality of course arrangement devices can be placed in the limit groove at the same time.
Further, a rubber layer is arranged at the joint of the base and the structural rod.
Furthermore, the writing board is a magnetic white board, and paper or other light display props can be fixed through magnets.
Two the clipboard sets up respectively in the top and one side of constituteing the class table district the spacing groove, the clipboard is the magnetism blank material, can directly write the clipboard of class table upside with the number of weeks that needs to arrange the class, will need to arrange that the several festivals write to the class table side on the clipboard, the word that writes on the magnetism blank shows clearly the while and wipes off very easily again, it is also very convenient to revise, can guarantee that teachers and students can be accurate read the content of class table while can not lead to other contents to be covered because of frequent modification again and lead to the information reading mistake, guarantees that the transmission of information is correct;
the irregular situations that two, three or even four courses of the colleges and universities are the same often exist, the number of the courses is limited in a way that the tablet is written by the person who arranges the courses, the requirements of the practical situations are met, and information transmission errors caused by the fact that the irregular situations are explained by conventional rules are avoided;
the display board is provided with a plurality of school timetable areas, the device can simultaneously display the school timetables of a plurality of classes or a plurality of teachers, the information transmission efficiency of a single device is improved, the number of school timetable display devices required in colleges and universities can be effectively reduced, the cost for arranging the school timetable display devices in the schools is saved, on the other hand, the device is convenient for the schoolers to carry out uniform modification, the condition that the paper school timetables arranged everywhere in the schools need to be modified once by the schoolers due to the modification of a certain course is avoided, and the labor cost is reduced;
the positioning groove and the partition groove are mutually matched, the course arrangement device can be fixed in the limit groove and cannot easily fall off through the splicing of the positioning groove and the partition groove, and information transmission errors caused by the absence of the course arrangement device are avoided;
the extension grooves are hinged to one side, close to the display board, of the top end of the mounting block, the positioning grooves are matched with the extension grooves, when the number of the limit grooves in which too many courses are available in a single day cannot meet the requirement of the number of the courses, a plurality of course arrangement devices can be placed in each limit groove, the positioning grooves of the plurality of the course arrangement devices can be mutually meshed with the extension grooves of the previously placed course arrangement devices to avoid falling from the limit grooves, the course arrangement amount in a single day is multiplied, the actual requirement of colleges and universities is met, and meanwhile, the stability of the device can be guaranteed;
when the course arrangement device is placed in the limiting groove, two fixing buckles and the quilt are extruded and deformed on the inner wall of the limiting groove to achieve a fixing effect, the device possibly needs to move a placed position according to actual requirements in a college, the course arrangement device can fall from the limiting groove due to shaking in the device moving process, and information reading errors of teachers and students are caused;
the base with the structure pole junction is provided with the rubber layer, when the angle of inclination of show board and ground was crossed down, the show board was exerted for strutting arrangement decurrent power is just bigger, and decurrent power is too big probably lets the structure pole can't maintain current structure and overturn downwards, may cause the show board with the damage of the striking of support frame and ground leads to the device, and the rubber layer can be for the structure pole is exerted one and is prevented strutting arrangement's structure collapses out the frictional force, increases device stability.
Furthermore, extension areas for mounting magnets are arranged at two ends of the writing board.
Furthermore, the bottom end of the back face of the display board is provided with a containing groove, and the inside of the containing groove is divided into a plurality of small areas by a partition board.
Further, the accommodating groove is a quarter-round strip-shaped groove body.
Furthermore, the bottom end of the front side of the display board is provided with a sundry groove.
Furthermore, a lamp holder is arranged at the top end of the display board, and an LED lamp capable of illuminating the front side of the display board is arranged on the lamp holder.
Furthermore, the lamp holder is provided with the LED lamp capable of irradiating the back of the display board.
The two ends of the writing board are provided with extension areas for mounting magnets, so that the magnets can be mounted in the extension areas, and the situation that the magnets directly and wholly cover paper or other light display devices to shield the content of the paper or other light display devices is avoided;
the accommodating groove is a quarter-round strip-shaped groove body, so that the condition that the inclination angle of the subsequent display board is not fixed well due to abrasion caused by long-term contact of a sharp edge with the ground or the display platform is avoided;
the positive bottom of show board is provided with debris groove, can be used to place oil pen, magnet or paper, provides convenience for the arrangement of lessons people.
The utility model has the beneficial technical effects that: (1) two the clipboard sets up respectively in the top and one side of constituteing the class table district the spacing groove, the clipboard is the magnetism blank material, can directly write the clipboard of class table upside with the number of weeks that needs to arrange the class, will need to arrange that the several festivals write to the class table side on the clipboard, the word that writes on the magnetism blank shows clearly the while and wipes off very easily again, it is also very convenient to revise, can guarantee that teachers and students can be accurate read the content of class table while can not lead to other contents to be covered because of frequent modification again and lead to the information reading mistake, guarantees that the transmission of information is correct;
(2) the irregular situations that two, three or even four courses of the colleges and universities are the same often exist, the number of the courses is limited in a way that the tablet is written by the person who arranges the courses, the requirements of the practical situations are met, and information transmission errors caused by the fact that the irregular situations are explained by conventional rules are avoided;
(3) the display board is provided with a plurality of school timetable areas, the device can simultaneously display the school timetables of a plurality of classes or a plurality of teachers, the information transmission efficiency of a single device is improved, the number of school timetable display devices required in colleges and universities can be effectively reduced, the cost for arranging the school timetable display devices in the schools is saved, on the other hand, the device is convenient for the schoolers to carry out uniform modification, the condition that the paper school timetables arranged everywhere in the schools need to be modified once by the schoolers due to the modification of a certain course is avoided, and the labor cost is reduced;
(4) the positioning groove and the partition groove are mutually matched, the course arrangement device can be fixed in the limit groove and cannot easily fall off through the splicing of the positioning groove and the partition groove, and information transmission errors caused by the absence of the course arrangement device are avoided;
(5) the extension grooves are hinged to one side, close to the display board, of the top end of the mounting block, the positioning grooves are matched with the extension grooves, when the number of the limit grooves in which too many courses are available in a single day cannot meet the requirement of the number of the courses, a plurality of course arrangement devices can be placed in each limit groove, the positioning grooves of the plurality of the course arrangement devices can be mutually meshed with the extension grooves of the previously placed course arrangement devices to avoid falling from the limit grooves, the course arrangement amount in a single day is multiplied, the actual requirement of colleges and universities is met, and meanwhile, the stability of the device can be guaranteed;
(6) when the course arrangement device is placed in the limiting groove, two fixing buckles and the quilt are extruded and deformed on the inner wall of the limiting groove to achieve a fixing effect, the device possibly needs to move a placed position according to actual requirements in a college, the course arrangement device can fall from the limiting groove due to shaking in the device moving process, and information reading errors of teachers and students are caused;
(7) the base with the structure pole junction is provided with the rubber layer, when the angle of inclination of show board and ground was crossed down, the show board was exerted for strutting arrangement decurrent power is just bigger, and decurrent power is too big probably lets the structure pole can't maintain current structure and overturn downwards, may cause the show board with the damage of the striking of support frame and ground leads to the device, and the rubber layer can be for the structure pole is exerted one and is prevented strutting arrangement's structure collapses out the frictional force, increases device stability.
Drawings
Fig. 1 is a front view of embodiment 1 of the present invention.
Fig. 2 is a rear view of embodiment 1 of the present invention.
Fig. 3 is a schematic structural view of a course arrangement device according to embodiment 1 of the present invention.
Fig. 4 is a plan view of the course scheduling device according to embodiment 1 of the present invention.
Fig. 5 is a schematic view showing a variation of the course scheduling device according to embodiment 1 of the present invention.
Fig. 6 is a schematic structural view of a supporting device according to embodiment 1 of the present invention.
Fig. 7 is a right side view of the supporting device according to embodiment 1 of the present invention.
Fig. 8 is a schematic view of a lamp holder according to embodiment 2 of the present invention.
In the figure: 1-a display board, 2-a lamp holder, 3-a sundry groove, 4-a separation groove, 5-a limiting groove, 6-a course arrangement device, 7-a writing board, 8-a containing groove, 9-a base, 10-a structural rod, 11-a support frame, 12-a positioning shaft, 61-a display board, 62-an installation block, 63-a positioning groove, 64-an extension groove and 65-a positioning buckle.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to fig. 1 to 8 of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1:
as shown in fig. 1, a course arrangement display device for teaching management in colleges and universities comprises a display device, a course arrangement device 6 and a supporting device;
as shown in fig. 2, the display device includes a display board 1, partition grooves 4, writing boards 7 and positioning shafts 12, the front surface of the display board 1 is provided with a plurality of vertical strip-shaped groove bodies, and the partition grooves 4 divide the strip-shaped groove bodies into a plurality of limiting grooves 5 with the same size, the partition grooves 4 are turned over in a direction close to the display board 1, the back surface of the display board 1 is transversely provided with a plurality of positioning shafts 12, the limiting grooves 5 and two writing boards 7 form a school timetable area, the two writing boards 7 are respectively arranged above the limiting grooves 5 and at one side edge of the limiting grooves 5 forming the school table area, and the display board 1 is provided with a plurality of school table areas;
as shown in fig. 3, 4 and 5, the course arranging device 6 includes a display board 61, an installation block 62, a positioning groove 63, an extension groove 64 and a fixing buckle 65, the display board 61 is connected to one end of the installation block 62, the bottom end of the installation block 62 is provided with the positioning groove 63, the positioning groove 63 is turned over toward the direction close to the display board 61, the positioning groove 63 is adapted to the separation groove 4, the extension groove 64 is hinged to one side of the installation block 62 close to the display board 61, the extension groove 64 is turned over toward the direction far away from the display board 61, the positioning groove 63 is adapted to the extension groove 64, two fixing buckles 65 are oppositely arranged at the end far away from the display board 61 on two sides, the fixing buckles 65 are made of rigid plastic, the two fixing buckles 65 extend obliquely toward the direction far away from the installation block 62 and close to the display board 61 with the connection point of the installation block 62 as the starting point, when the course arrangement device 6 is placed in the limit groove 5, the two fixing buckles 65 are extruded and deformed by the inner wall of the limit groove 5, so that the fixing effect is achieved;
as shown in fig. 6 and 7, the supporting device includes a base 9, a structural rod 10, and a supporting frame 11, the base 9 is disposed on the ground or on the display platform, one end of the structural rod 10 is hinged to the base 9, the supporting frame 11 is a semicircular plate-shaped structure, a plurality of holes are disposed on a side of the supporting frame 11 and are adapted to the positioning shafts 12, and the supporting frame 11 can contact the positioning shafts 12 with a suitable height to maintain the display board 1 in a stable inclined state.
Furthermore, a plurality of course arrangement devices 6 can be placed in the limit groove 5 at the same time.
Further, a rubber layer is arranged at the joint of the base 9 and the structural rod 10.
Further, the writing board 7 is a magnetic white board, and paper or other light display props can be fixed through magnets.
Example 1 working principle overview: two clipboards 7 set up respectively in the top and one side of a plurality of spacing grooves 5 that constitute the school timetable district, clipboard 7 is the magnetism blank material, can directly write the clipboard of school timetable upside with the number of weeks that needs to arrange the class, and what will need to arrange is that the several sections write to the school timetable side on clipboard 7, the characters that write on the magnetism blank show clearly and the very easy erasing again, it is also very convenient to revise, can guarantee that teachers and students can be accurate read the school timetable content while can not because of frequent modification lead to other contents to be covered and lead to the information reading mistake, guarantee that the transmission of information is correct;
the irregular situations that two, three or even four courses of the colleges and universities are the same often exist, the number of the courses is limited in a way that the schoolers write the writing board 7, the requirements of the practical situation are met, and information transmission errors caused by the fact that the irregular situations are explained by conventional rules are avoided;
the display board 1 is provided with a plurality of school timetable areas, the device can simultaneously display the school timetables of a plurality of classes or teachers, the information transmission efficiency of a single device is improved, the number of school timetable display devices required in colleges and universities can be effectively reduced, the cost for arranging the school timetable display devices in the schools is saved, on the other hand, the device is convenient for the schoolers to carry out uniform modification, the condition that the schoolers need to modify paper school timetables arranged everywhere in the schools once due to the modification of a certain course is avoided, and the labor cost is reduced;
the positioning groove 63 and the partition groove 4 are mutually matched, the course arrangement device 6 can be fixed in the limit groove 5 and cannot easily fall off through the splicing of the positioning groove 63 and the partition groove 4, and information transmission errors caused by the absence of the course arrangement device 6 are avoided;
the extension groove 64 is hinged to one side, close to the display board 61, of the top end of the mounting block 62, the positioning groove 63 is matched with the extension groove 64, when the number of the limiting grooves 5, in which single-day courses are too much available, cannot meet the requirement of the number of the courses, a plurality of course arrangement devices 6 can be placed in each limiting groove 5, the positioning grooves 63 of the more-placed course arrangement devices 6 can be meshed with each other through the extension grooves 64 of the previously-placed course arrangement devices 6 to avoid falling from the limiting grooves 5, the course arrangement amount of a single day is multiplied, the actual requirement of a college is met, and meanwhile, the stability of the device can be guaranteed;
when the course arrangement device 6 is placed in the limiting groove 5, the fixing buckles 65 and the quilt are extruded and deformed on the inner wall of the limiting groove 5 to achieve a fixing effect, the device can move the placed position according to actual requirements in colleges and universities, the course arrangement device 6 can fall off from the limiting groove 5 due to shaking in the device moving process, teachers and students can read information wrongly, meanwhile, mutual collision in the device moving process can send out large noise to influence classes in class around, the learning effect of students is reduced, the course arrangement device 6 and the display board 1 are kept static relatively by extruding the fixing buckles 65, noise can not be generated while the course arrangement device is kept not to fall off, and the teaching environment of teachers and students is not influenced;
the joint of the base 9 and the structural rod 10 is provided with a rubber layer, when the inclination angle between the display board 1 and the ground is too low, the downward force applied to the supporting device by the display board 1 is larger, the downward force is too large, the structural rod 10 cannot maintain the existing structure and can turn downwards, the damage of the device caused by the impact between the display board 1 and the supporting frame 11 and the ground can be caused, and the rubber layer can apply a friction force for preventing the structural collapse of the supporting device to the structural rod, so that the stability of the device is improved.
Example 2:
on the basis of embodiment 1, furthermore, both ends of the writing board 7 are provided with extension areas for mounting magnets.
Further, the bottom end of the back face of the display board 1 is provided with a containing groove 8, and the containing groove 8 is internally divided into a plurality of small areas by a partition board.
Further, the accommodating groove 8 is a quarter-round strip groove body.
Furthermore, sundry grooves 3 are formed in the bottom end of the front face of the display board 1.
Further, as shown in fig. 8, a lamp holder 2 is disposed at the top end of the display board 1, and an LED lamp 21 capable of illuminating the front surface of the display board 1 is disposed on the lamp holder 2.
Further, the lamp holder 2 is provided with the LED lamp 21 capable of illuminating the back of the display board 1.
Example 2 working principle overview: the two ends of the writing board 7 are provided with extension areas for mounting magnets, so that the magnets can be mounted in the extension areas, and the situation that the magnets directly and wholly cover paper or other light display devices to shield the content of the paper or other light display devices is avoided;
the accommodating groove 8 is a quarter-round strip groove body, so that the condition that the inclination angle of the subsequent display board 1 is not fixed well due to abrasion caused by long-term contact of a sharp edge with the ground or the display platform is avoided;
the bottom of the front surface of the display board 1 is provided with a sundries groove 3 which can be used for placing oil pens, magnets or paper and provides convenience for the schoolers.
In the description of the present invention, it should be understood that the terms "counterclockwise", "clockwise", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Claims (10)
1. A course arrangement display device for teaching management in colleges and universities is characterized by comprising a display device, a course arrangement device (6) and a supporting device;
the display device comprises a display board (1), partition grooves (4), writing boards (7) and positioning shafts (12), wherein a plurality of vertical strip-shaped groove bodies are arranged on the front side of the display board (1), a plurality of limiting grooves (5) with the same size are formed by dividing the strip-shaped groove bodies through the partition grooves (4), the partition grooves (4) are turned over in the direction close to the display board (1), a plurality of positioning shafts (12) are transversely arranged on the back side of the display board (1), the limiting grooves (5) and the two writing boards (7) form a school timetable area, the two writing boards (7) are respectively arranged above the limiting grooves (5) forming the school timetable area and on the side edge of one side of the limiting grooves (5), and a plurality of school timetable areas are arranged on the display board (1);
course arrangement device (6) is including show tablet (61), installation piece (62), constant head tank (63), extension groove (64), fixed knot (65), show tablet (61) are connected installation piece (62) one end, installation piece (62) bottom is provided with constant head tank (63), constant head tank (63) are turned over towards the direction that is close to show tablet (61), constant head tank (63) with separate groove (4) adaptation each other, extension groove (64) articulate be close to one side of show tablet (61) in installation piece (62) top, extension groove (64) are turned over towards the direction of keeping away from show tablet (61), constant head tank (63) with extend groove (64) adaptation each other, installation piece (62) both sides are kept away from the one end of show tablet (61) is provided with two relatively fixed knot (65), the fixing buckles (65) are made of hard plastics, the two fixing buckles (65) extend obliquely in the direction far away from the mounting block (62) and close to the display board (61) by taking the connection point of the two fixing buckles (65) and the mounting block (62) as a starting point, and when the course arrangement device (6) is placed in the limiting groove (5), the two fixing buckles (65) are extruded and deformed by the inner wall of the limiting groove (5) to achieve a fixing effect;
the supporting device comprises a base (9), a structural rod (10) and a supporting frame (11), wherein the base (9) is arranged on the ground or a display platform, one end of the structural rod (10) is hinged to the base (9), the supporting frame (11) is of a semicircular plate-shaped structure, a plurality of holes matched with the positioning shafts (12) are formed in the side edge of the supporting frame (11), the supporting frame (11) can be in contact with the positioning shafts (12) with a proper height, and the display plate (1) maintains a stable inclined state.
2. The course arrangement display device for college teaching management according to claim 1, wherein a plurality of course arrangement devices (6) can be placed in the limiting groove (5) at the same time.
3. The course arrangement display device for college teaching management according to claim 1, wherein a rubber layer is arranged at the joint of the base (9) and the structural rod (10).
4. The course arrangement display device for college teaching management according to claim 1, wherein the writing board (7) is a magnetic white board, and paper or light display props can be fixed by magnets.
5. The course arrangement display device for college teaching management according to claim 4, wherein both ends of the writing board (7) are provided with extension areas for mounting magnets.
6. The course arrangement display device for college teaching management according to claim 1, wherein the bottom of the back of the display board (1) is provided with a storage groove (8), and the interior of the storage groove (8) is divided into a plurality of small areas by partition boards.
7. The course arrangement and display device for college teaching management according to claim 6, wherein the receiving groove (8) is a quarter-circular strip-shaped groove body.
8. The course arrangement display device for college teaching management according to claim 1, wherein the bottom of the front surface of the display board (1) is provided with a sundry groove (3).
9. The course arrangement display device for college teaching management according to claim 1, wherein a lamp holder (2) is arranged at the top end of the display board (1), and an LED lamp (21) capable of illuminating the front surface of the display board (1) is arranged on the lamp holder (2).
10. The course arrangement display device for college teaching management according to claim 9, wherein the lamp holder (2) is provided with the LED lamp (21) capable of illuminating the back of the display board (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020376657.9U CN211529561U (en) | 2020-03-23 | 2020-03-23 | Colleges and universities' teaching management is with arranging lesson display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020376657.9U CN211529561U (en) | 2020-03-23 | 2020-03-23 | Colleges and universities' teaching management is with arranging lesson display device |
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| Publication Number | Publication Date |
|---|---|
| CN211529561U true CN211529561U (en) | 2020-09-18 |
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| CN202020376657.9U Active CN211529561U (en) | 2020-03-23 | 2020-03-23 | Colleges and universities' teaching management is with arranging lesson display device |
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| Country | Link |
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