CN211118364U - Multi-angle adjustable practical training display component - Google Patents

Multi-angle adjustable practical training display component Download PDF

Info

Publication number
CN211118364U
CN211118364U CN201921791274.1U CN201921791274U CN211118364U CN 211118364 U CN211118364 U CN 211118364U CN 201921791274 U CN201921791274 U CN 201921791274U CN 211118364 U CN211118364 U CN 211118364U
Authority
CN
China
Prior art keywords
block
motor
connecting block
gear
unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201921791274.1U
Other languages
Chinese (zh)
Inventor
李聪
朱凌权
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Coco Software Technology Co ltd
Original Assignee
Guangzhou Coco Software Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou Coco Software Technology Co ltd filed Critical Guangzhou Coco Software Technology Co ltd
Priority to CN201921791274.1U priority Critical patent/CN211118364U/en
Application granted granted Critical
Publication of CN211118364U publication Critical patent/CN211118364U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The utility model discloses a multi-angle adjusting practical training display component, which comprises a base, a mounting round box, a rotating unit, a connecting block, a display and a power unit; the rotary unit is arranged in the installation round box, the installation round box is rotatably connected with the connecting block through the rotary unit, one side of the upper surface of the connecting block is provided with a fixed rod, the top end of the connecting block is fixedly connected with the display, the other side of the upper surface of the connecting block is provided with two supporting blocks, the centers of the two supporting blocks are rotatably connected with the rotating shaft, one end of the adjusting unit is arranged on the connecting block, the other end of the adjusting unit is connected with the back surface of the display, and the power unit is arranged on; the principle that has utilized the jack makes the demonstration board adjust from top to bottom to can realize rotating, little angle adjustment through other mechanical facilities, make the demonstration board use more convenient, prevent that the student from making eyes overstrain because the problem of seat angle, injury eyesight.

Description

Multi-angle adjustable practical training display component
Technical Field
The utility model relates to a virtual reality teachers and professors skill training specifically is a real demonstration component of instructing that multi-angle was adjusted with real demonstration component technical field.
Background
The virtual reality technology is a computer simulation system capable of creating and experiencing a virtual world, a simulation environment is generated by a computer, the system simulation of multi-source information fusion, interactive three-dimensional dynamic visual and entity behaviors enables a user to be immersed in the environment, and the teacher-and-profession skills mean that an excellent teacher must have proficient professional skills and strong professional ability to carry out teaching work;
the training is an organized knowledge transfer, skill transfer, standard transfer, information transfer, belief transfer and management training and caveat behavior, at present, domestic training is mainly skill transfer, time is before the post, and in order to achieve unified scientific and technical standards and standardized operation, modern informatization flows such as target planning setting, knowledge and information transfer, skill proficiency rehearsal, operation achievement evaluation and result exchange bulletin are adopted;
most all are the teacher and utilize the demonstration board to give lessons when current virtual reality professor skill training, have great limitation, comparatively inconvenient at the in-process of giving lessons, and current demonstration board majority all is more single, generally adopts directly to settle subaerial, uses very inconveniently, and the function is also comparatively single simultaneously, has no way angle of adjustment.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome current defect, a virtual reality professor skill training of multi-angle regulation is with real show component of instructing is provided, the principle that has utilized the jack makes the demonstration board adjust from top to bottom to can realize rotating, the adjustment of micro-angle through other mechanical facilities, it is more convenient to make the demonstration board use, prevent that the student from making eyes excessively tired because of the problem of seat angle, injure eyesight, can effectively solve the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: a multi-angle adjustable practical training display component for virtual reality training skills comprises a base, a mounting round box, a rotating unit, a connecting block, a display and a power unit;
base: the upper surface of the base is provided with two fixing pieces;
a lifting unit: the bottom of the lifting unit is arranged on the fixing sheet, and the top end of the lifting unit is provided with an installation round box;
a rotation unit: the rotary unit is arranged in the installation round box, the installation round box is rotatably connected with the connecting block through the rotary unit, one side of the upper surface of the connecting block is provided with a fixed rod, the fixed rod is movably connected with the connecting sheet, the top end of the connecting sheet is fixedly connected with the display, the other side of the upper surface of the connecting block is provided with two supporting blocks, the centers of the two supporting blocks are rotatably connected with the rotating shaft, one end of the connecting block is provided with the adjusting unit, the other end of the adjusting unit is connected with the back surface of the display, and the power unit is arranged;
wherein: still include the singlechip, the back of connecting block is located to the singlechip, and the output of external power source is connected to the input electricity of singlechip.
Further, the lift unit includes that half-tooth connecting block, cover joint block, first lead screw, connecting rod and installation are detained, half-tooth connecting block has two, and the one end of half-tooth connecting block is half-gear form, and the gear end rotates the inboard of connecting the stationary blade, and two half-tooth connecting block intermeshing, the other end middle part swing joint cover joint block of half-tooth connecting block, the cover joint block has two, and the screw has been seted up at the middle part of one of them cover joint block, the screw of first lead screw thread connection cover joint block, another cover the other end that the piece rotated and connects first lead screw, the one end of the both sides swing joint connecting rod of cover joint block, the other end of connecting rod is through the commentaries on classics hole of pivot swing joint installation knot bottom, the bottom surface of round case is located on the top. The principle of the jack is utilized to mechanically work, so that the device at the top end can move up and down, and the height can be adjusted.
Further, the rotary unit includes first motor, two tooth gears, actuating lever and driven gear, circle incasement portion bottom surface is located to first motor, connects two tooth gears on the output shaft of first motor, the bottom of actuating lever is rotated and is connected in the centre of a circle department of the inside bottom surface of circle incasement portion, and the middle-end of actuating lever is equipped with driven gear, and the top of actuating lever is equipped with the square and passes the upper surface of circle case, and the top joint of actuating lever is in the draw-in groove of connecting block bottom surface, driven gear and two tooth gears intermeshing, and the output of singlechip is connected to the input electricity of first motor. Drive the actuating lever through first motor and rotate, make the equipment of top can carry out omnidirectional rotation, make things convenient for angle regulation.
Furthermore, the adjusting unit comprises a second motor, a conical gear, a rotating block, a driven wheel, a second lead screw, a buckle and a thread block, the second motor is arranged on a side plate on the top surface of the connecting block, an output shaft of the second motor penetrates through a supporting block fixedly connected rotating shaft, an output shaft end of the second motor is connected with the conical gear, the rotating block is movably sleeved at the middle part of the rotating shaft, the second lead screw is rotatably connected with the side surface of the rotating block, one end of the second lead screw is fixedly connected with the driven wheel, the driven wheel is meshed with the conical gear, the other end of the second lead screw is in threaded connection with the thread block, the thread block is rotatably connected to the inner side of the buckle, the buckle is arranged at the back surface of the display. The second motor drives the second lead screw, so that the display at the top can realize the fine adjustment of the angle, the viewing of students in class is facilitated, and the visual fatigue of the students is reduced.
Furthermore, the power unit comprises a third motor, a first gear and a second gear, the third motor is arranged on the upper surface of the sleeving block, the output shaft of the third motor is connected with the first gear, the second gear is arranged on the end surface of the first lead screw, the first gear is meshed with the second gear, and the input end of the third motor is electrically connected with the output end of the single chip microcomputer. The power of the third motor is transmitted out through the mutual meshing of the first gear and the second gear, so that the first lead screw rotates, and the automatic height adjustment is realized.
Compared with the prior art, the beneficial effects of the utility model are that: this virtual reality professor skill training of virtual reality of multi-angle regulation is with real show component of instructing has following benefit:
1. the principle of a jack is utilized for mechanical work, so that the device at the top end can move up and down, the height can be adjusted, the power of a third motor is transmitted out through the mutual meshing of a first gear and a second gear, and a first lead screw is rotated to realize automatic height adjustment;
2. the second motor drives the second screw rod, so that the angle of the display at the top end can be finely adjusted, the viewing of students in class is facilitated, and the visual fatigue of the students is reduced;
3. the principle that has utilized the jack makes the demonstration board adjust from top to bottom to can realize rotating, little angle adjustment through other mechanical facilities, make the demonstration board use more convenient, prevent that the student from making eyes overstrain because the problem of seat angle, injury eyesight.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic rear view of the present invention;
fig. 3 is a schematic view of the local enlarged structure at a position of the present invention.
In the figure: the automatic lifting device comprises a base 1, a fixing plate 2, a lifting unit 3, a half-tooth connecting block 31, a sleeving block 32, a first lead screw 33, a connecting rod 34, a mounting buckle 35, a round mounting box 4, a rotating unit 5, a first motor 51, a two-tooth gear 52, a driving rod 53, a driven gear 54, a connecting block 6, a fixing rod 7, a connecting plate 8, a regulating unit 9, a second motor 91, a conical gear 92, a rotating block 93, a driven wheel 94, a second lead screw 95, a buckle 96, a threaded block 97, a display 10, a power unit 11, a third motor 111, a first gear 112, a second gear 113, a supporting block 12, a rotating shaft 13 and a single chip microcomputer 14.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments 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.
Referring to fig. 1-3, the present invention provides a technical solution: a multi-angle adjustable practical training display component for virtual reality training skills comprises a base 1, a mounting round box 4, a rotating unit 5, a connecting block 6, a display 10 and a power unit 11;
base 1: the upper surface of the base 1 is provided with two fixing pieces 2; the base 1 is arranged on the bottom surface, plays a certain supporting role and enables the whole machine to be more stable.
The lifting unit 3: the bottom of the lifting unit 3 is arranged on the fixing sheet 2, and the top end of the lifting unit 3 is provided with a round mounting box 4; lifting unit 3 includes half-tooth connecting block 31, cup joint piece 32, first lead screw 33, 35 is detained with the installation to connecting rod 34, half-tooth connecting block 31 has two, half-tooth connecting block 31's one end is half-gear form, the gear end rotates the inboard of connecting stationary blade 2, and two half-tooth connecting block 31 intermeshing, half-tooth connecting block 31's other end middle part swing joint connecting block 32, cup joint piece 32 has two, the screw has been seted up at one of them middle part of cup joint piece 32, first lead screw 33 threaded joint connecting block 32's screw, another cup joint piece 32 rotates the other end of connecting first lead screw 33, cup joint block 32's both sides swing joint connecting rod 34's one end, the other end of connecting rod 34 passes through the commentaries on classics hole of pivot swing joint installation knot 35 bottom, the bottom surface of round case 4 is located on the top of. The principle of the jack is utilized to mechanically work, so that the device at the top end can move up and down, and the height can be adjusted. The power unit 11 includes a third motor 111, a first gear 112 and a second gear 113, the third motor 111 is disposed on the upper surface of the sleeving block 32, the output shaft of the third motor 111 is connected with the first gear 112, the second gear 113 is disposed on the end surface of the first lead screw 33, the first gear 112 and the second gear 113 are engaged with each other, and the input end of the third motor 111 is electrically connected to the output end of the single chip microcomputer 14. The power of the third motor 111 is transmitted through the mutual meshing of the first gear 112 and the second gear 113, so that the first lead screw 33 rotates, and the automatic height adjustment is realized.
The rotating unit 5: the rotary unit 5 is arranged inside the installation round box 4, the installation round box 4 is rotatably connected with the connecting block 6 through the rotary unit 5, one side of the upper surface of the connecting block 6 is provided with a fixed rod 7, the fixed rod 7 is movably connected with a connecting sheet 8, the top end of the connecting sheet 8 is fixedly connected with the display 10, the other side of the upper surface of the connecting block 6 is provided with two supporting blocks 12, the centers of the two supporting blocks 12 are rotatably connected with a rotating shaft 13, one end of the adjusting unit 9 is arranged on the connecting block 6, the other end of the adjusting unit 9 is connected with the back surface of the display 10, and the power unit 11; the rotating unit 5 comprises a first motor 51, two toothed gears 52, a driving rod 53 and a driven gear 54, the bottom surface inside the round box 4 is arranged on the first motor 51, the two toothed gears 52 are connected to an output shaft of the first motor 51, the bottom end of the driving rod 53 is rotatably connected to the circle center of the bottom surface inside the round box 4, the driven gear 54 is arranged at the middle end of the driving rod 53, the top end of the driving rod 53 is provided with a square block and penetrates through the upper surface of the round box 4, the top end of the driving rod 53 is clamped in a clamping groove in the bottom surface of the connecting block 6, the driven gear 54 is meshed with the two toothed gears 52, and the input end of the first motor 51 is. The driving rod 53 is driven to rotate by the first motor 51, so that the equipment above the driving rod can rotate in all directions, and the angle can be adjusted conveniently. The adjusting unit 9 includes a second motor 91, a conical gear 92, a rotating block 93, a driven wheel 94, a second lead screw 95, a buckle 96 and a thread block 97, the second motor 91 is arranged on a side plate on the top surface of the connecting block 6, an output shaft of the second motor 91 passes through a supporting block 12 and a rotating shaft 13 fixedly connected with, an output shaft end of the second motor 91 is connected with the conical gear 92, the rotating block 93 is movably sleeved at the middle part of the rotating shaft 13, the second lead screw 95 is rotatably connected with the side surface of the rotating block 93, one end of the second lead screw 95 is fixedly connected with the driven wheel 94, the driven wheel 94 is mutually meshed with the conical gear 92, the other end of the second lead screw 95 is in threaded connection with the thread block 97, the thread block 97 is rotatably connected to the inner side of the buckle 96, the back surface of. The second motor 91 drives the second screw 95, so that the angle of the display on the top can be adjusted slightly, the viewing of students in class is facilitated, and the visual fatigue of the students is reduced.
Wherein: still include singlechip 14, singlechip 14 locates the back of connecting block 6, and the output of external power source is connected to the input electricity of singlechip 14.
When in use: the display is controlled by the single chip microcomputer 14, the third motor 111 rotates to drive the first gear 112, the second gear 113 rotates to drive the first lead screw 33, the sleeving block 32 moves back and forth on the first lead screw 33, height adjustment of the device is achieved, the first motor 51 rotates to drive the two-tooth gears 52, the two-tooth gears 52 are meshed with the driven gear 54, teeth of the two-tooth gears 52 are transmitted to the driven gear 54, squares of the driving rod 53 are rotated to drive the connecting block 6, omnibearing rotary adjustment is achieved, the second motor 91 drives the conical gear 92 to rotate, the conical gear 92 is meshed with the driven wheel 94, the driven wheel 94 rotates in the threaded block 97, the buckle 96 can move back and forth on the threaded block 97, the display 10 is movably connected with the fixing rod 7 through the connecting piece 8, stability is improved, fine adjustment of the display 10 is achieved, and multi-angle adjustment is achieved.
It should be noted that in this embodiment, the core chip of the single chip microcomputer 14 is a P L C single chip microcomputer, the specific model is siemens S7-200, the second motor 91, the first motor 51 and the third motor 111 can be freely configured according to the actual application scenario, the second motor 91, the first motor 51 and the third motor 111 can be drivers 60 series servo motors produced by cantonese red son servo motor ltd, and the single chip microcomputer 14 controls the second motor 91, the first motor 51 and the third motor 111 to work by a method commonly used in the prior art
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 (5)

1. The utility model provides a real standard show component that multi-angle was adjusted which characterized in that: comprises a base (1), a mounting round box (4), a rotating unit (5), a connecting block (6), a display (10) and a power unit (11);
base (1): the upper surface of the base (1) is provided with two fixing pieces (2), and the number of the fixing pieces (2) is two;
lifting unit (3): the bottom of the lifting unit (3) is arranged on the fixing sheet (2), and the top end of the lifting unit (3) is provided with a mounting round box (4);
rotation unit (5): the rotary unit (5) is arranged inside the installation round box (4), the installation round box (4) is rotatably connected with the connecting block (6) through the rotary unit (5), a fixing rod (7) is arranged on one side of the upper surface of the connecting block (6), the fixing rod (7) is movably connected with the connecting sheet (8), the top end of the connecting sheet (8) is fixedly connected with the display (10), the other side of the upper surface of the connecting block (6) is provided with two supporting blocks (12), the centers of the two supporting blocks (12) are rotatably connected with the rotating shaft (13), one end of the connecting block (6) is provided with the adjusting unit (9), the other end of the adjusting unit (9) is connected with the back face of the display (10), and the power unit (11) is arranged on the sleeving connection block (32;
wherein: the power supply is characterized by further comprising a single chip microcomputer (14), wherein the single chip microcomputer (14) is arranged on the back face of the connecting block (6), and the input end of the single chip microcomputer (14) is electrically connected with the output end of an external power supply.
2. The practical training display component of claim 1, wherein: the lifting unit (3) comprises half-tooth connecting blocks (31), two sleeving blocks (32), a first lead screw (33), a connecting rod (34) and a mounting buckle (35), one end of each half-tooth connecting block (31) is in a half-gear shape, the gear end rotates to connect the inner side of the fixed plate (2), the two half-tooth connecting blocks (31) are meshed with each other, the middle part of the other end of each half-tooth connecting block (31) is movably connected with the corresponding connecting block (32), the two sleeving blocks (32) are provided, the middle part of one sleeving block (32) is provided with a screw hole, the first lead screw (33) is in threaded connection with the screw hole of the corresponding connecting block (32), the other sleeving block (32) is connected with the other end of the first lead screw (33) in a rotating manner, one end of the connecting rod (34) is movably connected with the two sides of the corresponding sleeving block (32), and the other end of the connecting rod (34) passes through a rotating hole at the bottom end of the, the top end of the mounting buckle (35) is arranged on the bottom surface of the round box (4).
3. The practical training display component of claim 1, wherein: the rotary unit (5) comprises a first motor (51), two toothed gears (52), a driving rod (53) and a driven gear (54), the bottom surface of the inside of the round box (4) is arranged on the first motor (51), the two toothed gears (52) are connected to an output shaft of the first motor (51), the bottom end of the driving rod (53) is rotatably connected to the circle center of the bottom surface of the inside of the round box (4), the driven gear (54) is arranged at the middle end of the driving rod (53), a square block is arranged at the top end of the driving rod (53) and penetrates through the upper surface of the round box (4), the top end of the driving rod (53) is connected to a clamping groove in the bottom surface of the connecting block (6), the driven gear (54) is meshed with the two toothed gears (52), and the input end of the first motor (51) is electrically connected with the.
4. The practical training display component of claim 1, wherein: the adjusting unit (9) comprises a second motor (91), a conical gear (92), a rotating block (93), a driven wheel (94), a second lead screw (95), a buckle (96) and a thread block (97), the second motor (91) is arranged on a side plate on the top surface of the connecting block (6), an output shaft of the second motor (91) penetrates through a supporting block (12) and is fixedly connected with a rotating shaft (13), an output shaft end of the second motor (91) is connected with the conical gear (92), the rotating block (93) is movably sleeved in the middle of the rotating shaft (13), the second lead screw (95) is rotatably connected with the side surface of the rotating block (93), one end of the second lead screw (95) is fixedly connected with the driven wheel (94), the driven wheel (94) is meshed with the conical gear (92), the other end of the second lead screw (95) is in threaded connection with the thread block (97), and the thread block (97) is rotatably connected to the inner, the buckle (96) is arranged on the back of the display (10), and the input end of the second motor (91) is electrically connected with the output end of the single chip microcomputer (14).
5. The practical training display component of claim 1, wherein: the power unit (11) comprises a third motor (111), a first gear (112) and a second gear (113), the third motor (111) is arranged on the upper surface of the sleeving block (32), the output shaft of the third motor (111) is connected with the first gear (112), the second gear (113) is arranged on the end surface of the first lead screw (33), the first gear (112) and the second gear (113) are meshed with each other, and the input end of the third motor (111) is electrically connected with the output end of the single chip microcomputer (14).
CN201921791274.1U 2019-10-22 2019-10-22 Multi-angle adjustable practical training display component Active CN211118364U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921791274.1U CN211118364U (en) 2019-10-22 2019-10-22 Multi-angle adjustable practical training display component

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921791274.1U CN211118364U (en) 2019-10-22 2019-10-22 Multi-angle adjustable practical training display component

Publications (1)

Publication Number Publication Date
CN211118364U true CN211118364U (en) 2020-07-28

Family

ID=71699370

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921791274.1U Active CN211118364U (en) 2019-10-22 2019-10-22 Multi-angle adjustable practical training display component

Country Status (1)

Country Link
CN (1) CN211118364U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112283540A (en) * 2020-10-22 2021-01-29 中筑国咨湖北工程有限公司 Intelligent cost advisory device for constructional engineering
CN112344186A (en) * 2020-11-16 2021-02-09 吉林农业科技学院 Network visible English teaching device
CN112790045A (en) * 2021-01-05 2021-05-14 深圳视爵光电有限公司 Automatic adjust plant lighting system of light and shade and device thereof
CN113983293A (en) * 2021-10-27 2022-01-28 山东省地质矿产勘查开发局第七地质大队(山东省第七地质矿产勘查院) Portable engineering surveying and mapping device for geological mineral exploration
WO2022032851A1 (en) * 2020-08-14 2022-02-17 苏州骊赫信息科技有限公司 Demonstration device for software development

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022032851A1 (en) * 2020-08-14 2022-02-17 苏州骊赫信息科技有限公司 Demonstration device for software development
CN112283540A (en) * 2020-10-22 2021-01-29 中筑国咨湖北工程有限公司 Intelligent cost advisory device for constructional engineering
CN112344186A (en) * 2020-11-16 2021-02-09 吉林农业科技学院 Network visible English teaching device
CN112344186B (en) * 2020-11-16 2021-12-14 吉林农业科技学院 Network visible English teaching device
CN112790045A (en) * 2021-01-05 2021-05-14 深圳视爵光电有限公司 Automatic adjust plant lighting system of light and shade and device thereof
CN113983293A (en) * 2021-10-27 2022-01-28 山东省地质矿产勘查开发局第七地质大队(山东省第七地质矿产勘查院) Portable engineering surveying and mapping device for geological mineral exploration

Similar Documents

Publication Publication Date Title
CN211118364U (en) Multi-angle adjustable practical training display component
CN205959478U (en) Higher mathematics three -dimensional scale model display device that imparts knowledge to students
CN112401475A (en) Accounting teaching device and using method thereof
CN105788375A (en) Multifunctional physical exercise teaching instrument
CN205354400U (en) English teaching auxiliary apparatus
CN212391931U (en) Power supply fixing device
CN213656205U (en) Classroom teaching recording device convenient to adjust
CN213365941U (en) Intermittent indexing device driven by air cylinder
CN109285432B (en) Buoyancy teaching demonstration device for physical electromagnetic induction experiment
CN211087548U (en) Think political affairs class teaching and use auxiliary teaching aid
CN111477067A (en) Picture display device for fine arts teaching
CN204557819U (en) A kind of mechanical drawing view projections stage apparatus
CN113096475A (en) Big data interactive teaching practical training platform
CN214671146U (en) High-efficient course practice teaching achievement display platform
CN214175458U (en) Mathematical modeling simulation demonstration device
CN219626156U (en) Electrician training platform
CN205028528U (en) A auxiliary line formation device for english classroom writing on blackboard
CN215987615U (en) Artificial intelligence education device
CN216046396U (en) But quick adjustment height's industry camera support
CN212541619U (en) Combined board for computer teaching
CN220474168U (en) Multimedia teaching device
CN213877279U (en) Electrical engineering and automatic electronic electric power dragging teaching model thereof
CN218631092U (en) Robot display device is used in teaching convenient to multi-angle show
RU2274907C1 (en) Training device for demonstrating gearing by means of overhead projector
CN212847311U (en) Vertical teaching aid for teaching and practice of microcosmic economics

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CB03 Change of inventor or designer information

Inventor after: Li Cong

Inventor after: Zhu Linghan

Inventor before: Li Cong

Inventor before: Zhu Lingquan

CB03 Change of inventor or designer information