CN109961691B - Power system two-dimensional equipment panorama display system based on VR - Google Patents
Power system two-dimensional equipment panorama display system based on VR Download PDFInfo
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- CN109961691B CN109961691B CN201910220974.3A CN201910220974A CN109961691B CN 109961691 B CN109961691 B CN 109961691B CN 201910220974 A CN201910220974 A CN 201910220974A CN 109961691 B CN109961691 B CN 109961691B
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- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000011521 glass Substances 0.000 claims abstract description 15
- 229910052742 iron Inorganic materials 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 239000003638 chemical reducing agent Substances 0.000 claims description 6
- 238000007405 data analysis Methods 0.000 description 9
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F15/00—Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like
- G09F15/0006—Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like planar structures comprising one or more panels
- G09F15/0012—Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like planar structures comprising one or more panels frames therefor
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B2027/0178—Eyeglass type
Abstract
The invention discloses a power system two-dimensional equipment panoramic display system based on VR, which comprises a base, a first display board, a placing groove, a remark board, VR glasses, a fixed frame, a second display board, a supporting plate, a trapezoidal sliding block, a connecting plate, a groove, a trapezoidal sliding groove, a convex block, a transmission belt, a roller, a driven wheel, a movable shaft, a rotating shaft, a roller, a guide rail, a limiting block, a connecting groove, a shaft fork, a supporting plate, a magnet, an iron sheet and a computer main body, wherein the outer wall of the first display board is provided with the connecting groove, the two ends of the connecting groove are respectively provided with the guide rail, the roller is arranged in the guide rail, the movable shaft is inserted in the center of the roller, the rotating shaft is arranged in the middle of the movable shaft, the supporting plate is welded at the tail end of the movable shaft, the limiting block is arranged on the outer wall of the bottom of the supporting plate, and the shaft fork is welded on the inner wall of the connecting groove, the support plate is mounted at the upper end of the shaft fork, and the shaft fork has the advantage of strong practicability and can give a user a good experience feeling.
Description
Technical Field
The invention relates to the technical field of panoramic display systems, in particular to a VR-based panoramic display system for two-dimensional equipment of a power system.
Background
VR technology is a computer simulation technology that creates and experiences virtual worlds, using computers to create an interactive three-dimensional dynamic view whose physical behavior simulation system enables the user to be immersed in the environment. The prior VR technology is mainly used in the fields of indoor design, product display and the like. In the product display field, a display stand is an indispensable important component, and the function of the display stand is to provide the primary experience of products for users through physical display. And traditional display device receives the restriction in space in the use, can not put more in kind, can not satisfy the use under different conditions promptly, leads to the practicality of device not strong, and simultaneously, traditional display device can not possess the function of show in kind and virtual show simultaneously, causes user's experience to feel not strong, the information of going to know the product of the unable degree of depth. Therefore, it is necessary to design a VR-based power system two-dimensional device panorama display system with strong practicability and good experience.
Disclosure of Invention
The invention aims to provide a power system two-dimensional equipment panorama display system based on VR (virtual reality), so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: a power system two-dimensional equipment panoramic display system based on VR comprises a base, a first display board, a placement groove, a remark board, VR glasses, a fixed frame, a second display board, a supporting plate, a trapezoidal slider, a connecting plate, a groove, a trapezoidal sliding groove, a bump, a transmission belt, a roller, a driven wheel, a belt, a motor, a driving wheel, a movable shaft, a rotating shaft, a roller, a guide rail, a limiting block, a connecting groove, a shaft fork, a supporting plate, a magnet, an iron sheet and a computer main body, wherein the connecting groove is formed in the outer wall of the first display board, the guide rail is arranged at each end of the connecting groove, the roller is arranged in the guide rail, the movable shaft is inserted in the inner center of the roller, the rotating shaft is arranged in the middle of the movable shaft, the supporting plate is welded at the tail end of the movable shaft, the limiting block is arranged on the outer wall of the bottom of the supporting plate, and the shaft fork is welded on the inner wall of the connecting groove, the upper end of the shaft fork is provided with a supporting plate, one side of the supporting plate close to the connecting groove is embedded with a magnet, an iron sheet is embedded in the connecting part of the inside of the connecting groove and the magnet, two ends of the first display plate are respectively provided with a second display plate, the insides of four second display plates are respectively provided with a placing groove, a remark plate is arranged below the placing groove, the bottom of the second display plate is provided with a connecting plate, the inside of the connecting plate is uniformly provided with a groove, two sides of the connecting plate are respectively provided with a trapezoidal sliding block, the bottom of the first display plate is connected with a base, the inside of the base is provided with a computer main body, the computer main body is connected with VR glasses through a lead, the VR glasses are fixed on the outer wall of the second display plate through a fixing frame, and the connecting part of the bottom of the base and the trapezoidal sliding block is provided with a trapezoidal sliding groove, one side of trapezoidal spout is provided with the transmission band, the outer wall of transmission band is provided with the lug, the cylinder is all installed at the both ends of transmission band, the one end of cylinder is connected with from the driving wheel, the motor is installed to the below of transmission band, the one end of motor is provided with the action wheel, the action wheel with be connected through the belt between the follow driving wheel, motor and computer main part all with external power source electric connection.
According to the technical scheme, the motor is fixed on the inner wall of the base through the motor support, and the motor is Y80M 2-2.
According to the technical scheme, shaft sleeves are sleeved at the joints of the two ends of the roller and the base.
According to the technical scheme, the VR glasses include video processing chip unit, video source conversion unit, video processing unit, VR data analysis unit and VR display element, just the output of computer main part and the input electric connection of video processing chip unit, the output of video processing chip unit and the input electric connection of video source conversion unit, the output of video source conversion unit and the input electric connection of video processing unit, the output of video processing unit and the input electric connection of VR data analysis unit, the output of VR data analysis unit and the input electric connection of VR display element.
According to the technical scheme, the output end of the motor is provided with the speed reducer, and the driving wheel is arranged on the outer wall of the output shaft of the speed reducer.
According to the technical scheme, the closed surface of the second display board is adhered with the cushion rubber pad.
According to the technical scheme, the grooves and the lugs are the same in shape and size and are of a matched structure.
Compared with the prior art, the invention has the following beneficial effects: the invention controls the motor to enter a working state through the control switch, drives the transmission belt to move under the coordination of the driving wheel, the driven wheel, the roller and other components, ensures that the convex blocks on the outer wall of the transmission belt are mutually occluded with the grooves at the bottom of the second display board, ensures that the second display boards are mutually separated, exposes the supporting board on the inner wall of the second display board, then lifts the supporting board to ensure that the supporting board is mutually vertical to the connecting grooves, then pushes the supporting board upwards according to the actual display requirement, ensures that the rollers at the two ends of the supporting board move on the upper end of the guide rail, breaks the supporting board when the supporting board is pushed to a required position, clamps the top of the supporting board on the inner wall of the limiting block, thus placing the object in the top of the supporting board and the inner part of the placing groove, compared with the traditional display device, more objects can be placed in the same occupied space, and the placing height of the object can be adjusted, can satisfy in the show demand that can not the environment, the practicality is stronger, simultaneously, the computer main part is handled the video through video processing chip unit, then carry out the video data analysis by VR data analysis unit, then carry to the VR display element in, the user alright can watch the virtual image of equipment through VR glasses this moment, through the mode display device that this kind of virtual image combines together with the material object, can let the user more clearly, know equipment itself comprehensively, user's experience sense has been increased simultaneously.
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 specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an expanded view of a second display board according to the present invention;
FIG. 3 is a bottom view of a first display board of the present invention;
FIG. 4 is a schematic view of the base structure of the present invention;
FIG. 5 is a cross-sectional view of the base of the present invention;
FIG. 6 is a schematic view of the pallet structure of the present invention;
FIG. 7 is a cross-sectional view of a first display board of the present invention;
FIG. 8 is a system flow diagram of the present invention;
in the figure: 1. a base; 2. a first display board; 3. a placement groove; 4. a remark plate; 5. VR glasses; 6. a fixed mount; 7. a second display board; 8. a support plate; 9. a trapezoidal slider; 10. a connecting plate; 11. a groove; 12. a trapezoidal chute; 13. a bump; 14. a conveyor belt; 15. a drum; 16. a driven wheel; 17. a belt; 18. a motor; 19. a driving wheel; 20. a movable shaft; 21. a rotating shaft; 22. a roller; 23. a guide rail; 24. a limiting block; 25. connecting grooves; 26. a shaft yoke; 27. a support plate; 28. a magnet; 29. iron sheets; 30. a computer main body.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-8, the present invention provides a technical solution: a power system two-dimensional equipment panorama display system based on VR comprises a base 1, a first display board 2, a placement groove 3, a remark board 4, VR glasses 5, a fixed frame 6, a second display board 7, a supporting board 8, a trapezoidal sliding block 9, a connecting board 10, a groove 11, a trapezoidal sliding groove 12, a convex block 13, a transmission belt 14, a roller 15, a driven wheel 16, a belt 17, a motor 18, a driving wheel 19, a movable shaft 20, a rotating shaft 21, a roller 22, a guide rail 23, a limiting block 24, a connecting groove 25, a shaft fork 26, a supporting board 27, a magnet 28, an iron sheet 29 and a computer main body 30, wherein the outer wall of the first display board 2 is provided with the connecting groove 25, two ends of the connecting groove 25 are respectively provided with the guide rail 23, the roller 22 is installed inside the guide rail 23, the movable shaft 20 is inserted in the center position of the roller 22, the middle position of the movable shaft 20 is, the bottom outer wall of the supporting plate 8 is provided with a limiting block 24, the inner wall of the connecting groove 25 is welded with a shaft fork 26, the upper end of the shaft fork 26 is provided with a supporting plate 27, one side of the supporting plate 27 close to the connecting groove 25 is embedded with a magnet 28, the joint of the inside of the connecting groove 25 and the magnet 28 is embedded with an iron sheet 29, two ends of the first display plate 2 are respectively provided with a second display plate 7, the inside of the four second display plates 7 is provided with a placing groove 3, a remark plate 4 is arranged below the placing groove 3, the bottom of the second display plate 7 is provided with a connecting plate 10, the inside of the connecting plate 10 is provided with a groove 11, two sides of the connecting plate 10 are respectively provided with a trapezoidal sliding block 9, the bottom of the first display plate 2 is connected with a base 1, the inside of the base 1 is provided with a computer main body 30, the computer main body 30 is connected with, a trapezoidal sliding groove 12 is arranged at the joint of the bottom of the base 1 and the trapezoidal sliding block 9, a transmission belt 14 is arranged on one side of the trapezoidal sliding groove 12, a convex block 13 is arranged on the outer wall of the transmission belt 14, rollers 15 are arranged at two ends of the transmission belt 14, one end of each roller 15 is connected with a driven wheel 16, a motor 18 is arranged below the transmission belt 14, one end of the motor 18 is provided with a driving wheel 19, the driving wheel 19 is connected with the driven wheel 16 through a belt 17, the motor 18 and the computer main body 30 are both electrically connected with an external power supply, the motor 18 is fixed on the inner wall of the base 1 through a motor support, the motor 18 is a motor with a model of Y80M2-2, in order to normally work of the motor 18, shaft sleeves are respectively sleeved at the joints of the two ends of the rollers 15 and the base 1, in order that the rollers 15 can rotate inside the base 1 under the action of the motor 18, the VR glasses 5 comprise a video processing chip unit, The video display device comprises a video source conversion unit, a video processing unit, a VR data analysis unit and a VR display unit, wherein the output end of a computer main body 30 is electrically connected with the input end of the video processing chip unit, the output end of the video processing chip unit is electrically connected with the input end of the video source conversion unit, the output end of the video source conversion unit is electrically connected with the input end of the video processing unit, the output end of the video processing unit is electrically connected with the input end of the VR data analysis unit, the output end of the VR data analysis unit is electrically connected with the input end of the VR display unit, a speed reducer is arranged at the output end of a motor 18 for ensuring that VR glasses 5 and the computer main body 30 can normally work, a driving wheel 19 is arranged on the outer wall of the output shaft of the speed reducer, a buffer rubber pad is adhered to the closed surface of a second display board 7 for reducing the transmission ratio between the motor 18 and the driving wheel 19, in order to reduce the abrasion caused by mutual collision when the second display board 7 is closed, the grooves 11 and the bumps 13 are the same in shape and size, and are of a matching structure, in order that the transmission belt 14 can drive the second display board 7 to be separated from each other, the motor 18 is controlled to be in a working state by controlling the switch to drive the driving wheel 19 at one end to rotate, so that the driven wheel 16 is driven to rotate under the action of the belt 17, namely the transmission belt 14 on the outer wall of the roller 15 is driven to move, the bumps 13 on the outer wall of the transmission belt 14 are mutually engaged with the grooves 11 at the bottom of the second display board 7, and further the second display board 7 is driven to move in the trapezoidal sliding groove 12 at the top of the base 1, namely the second display boards 7 are separated from each other, the supporting board 8 on the inner wall of the second display board 7 is exposed, then the supporting board 8 is lifted to be vertical to the connecting groove 25, and then the supporting board 8 is upwards pushed according to the actual display requirements, the rollers 22 at the two ends of the supporting plate 8 move on the upper ends of the guide rails 23, when the supporting plate 27 is pushed to a required position, the supporting plate 27 is broken off, the top of the supporting plate 27 is clamped into the inner wall of the limiting block 24, thus the deformation of the invention can be completed, compared with the traditional display device, more real objects can be placed under the same occupied space, the placing height of the real objects can be adjusted, the display requirement of the environment can be met, the practicability is stronger, meanwhile, the computer main body 30 processes the video through the video processing chip unit, then the VR data analysis unit analyzes the video data, and then the video data is transmitted to the VR display unit, at the moment, the user can watch the virtual image of the equipment through the VR glasses 5, and the display equipment can be displayed in a mode of combining the virtual image and the real objects, so that the user can know the equipment more clearly and comprehensively, and meanwhile, the experience of the user is increased.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides an electric power system two dimension equipment panorama display system based on VR, including base (1), first show board (2), standing groove (3), remark board (4), VR glasses (5), mount (6), second show board (7), layer board (8), trapezoidal slider (9), connecting plate (10), recess (11), trapezoidal spout (12), lug (13), transmission band (14), cylinder (15), follow driving wheel (16), belt (17), motor (18), action wheel (19), loose axle (20), pivot (21), gyro wheel (22), guide rail (23), stopper (24), spread groove (25), shaft fork (26), backup pad (27), magnet (28), iron sheet (29) and computer main part (30), its characterized in that: the outer wall of the first display board (2) is provided with a connecting groove (25), two ends of the connecting groove (25) are respectively provided with a guide rail (23), a roller (22) is installed inside the guide rail (23), a movable shaft (20) is inserted into the center inside the roller (22), a rotating shaft (21) is arranged at the middle position of the movable shaft (20), a supporting plate (8) is welded at the tail end of the movable shaft (20), a limiting block (24) is installed on the outer wall of the bottom of the supporting plate (8), a shaft fork (26) is welded on the inner wall of the connecting groove (25), a supporting plate (27) is installed at the upper end of the shaft fork (26), a magnet (28) is embedded in one side, close to the connecting groove (25), of the connecting groove (25) and the connecting position of the magnet (28) are embedded with an iron sheet (29), two ends of the first display board (2) are respectively provided with a second display board (7), the novel multifunctional demonstration board is characterized in that the inside of four second demonstration boards (7) is provided with a placement groove (3), a remark board (4) is arranged below the placement groove (3), the bottom of each second demonstration board (7) is provided with a connecting board (10), the inside of each connecting board (10) is uniformly provided with a groove (11), both sides of each connecting board (10) are provided with trapezoidal sliders (9), the bottom of each first demonstration board (2) is connected with a base (1), the inside of each base (1) is provided with a computer main body (30), each computer main body (30) is connected with VR glasses (5) through a lead, each VR glasses (5) is fixed on the outer wall of each second demonstration board (7) through a fixing frame (6), the joint of the bottom of each base (1) and each trapezoidal slider (9) is provided with a trapezoidal chute (12), one side of each trapezoidal chute (12) is provided with a transmission belt (14), the outer wall of the transmission belt (14) is provided with a convex block (13), two ends of the transmission belt (14) are provided with rollers (15), one end of each roller (15) is connected with a driven wheel (16), a motor (18) is arranged below the transmission belt (14), one end of each motor (18) is provided with a driving wheel (19), the driving wheel (19) is connected with the driven wheel (16) through a belt (17), and the motor (18) and the computer main body (30) are both electrically connected with an external power supply;
when the display board is used, after the supporting plate (8) on the inner wall of the second display board (7) is exposed, the supporting plate (8) is lifted, the supporting plate (8) and the connecting groove (25) are perpendicular to each other, the supporting plate (8) is pushed upwards, the rollers (22) at the two ends of the supporting plate (8) move at the upper end of the guide rail (23), when the display board is pushed to a required position, the supporting plate (27) is pulled off, and the top of the supporting plate (27) is clamped into the inner wall of the limiting block (24).
2. The VR-based power system two-dimensional device panorama display system of claim 1, wherein: the motor (18) is fixed on the inner wall of the base (1) through a motor support, and the motor (18) is Y80M 2-2.
3. The VR-based power system two-dimensional device panorama display system of claim 1, wherein: the connecting parts of the two ends of the roller (15) and the base (1) are sleeved with shaft sleeves.
4. The VR-based power system two-dimensional device panorama display system of claim 1, wherein: VR glasses (5) include video processing chip unit, video source conversion unit, video processing unit, the analytic unit of VR data and VR display element, just the output of computer main part (30) and the input electric connection of video processing chip unit, the output of video processing chip unit and the input electric connection of video source conversion unit, the output of video source conversion unit and video processing unit's input electric connection, the output of video processing unit and the input electric connection of the analytic unit of VR data, the output of the analytic unit of VR data and the input electric connection of VR display element.
5. The VR-based power system two-dimensional device panorama display system of claim 1, wherein: the output end of the motor (18) is provided with a speed reducer, and the driving wheel (19) is arranged on the outer wall of the output shaft of the speed reducer.
6. The VR-based power system two-dimensional device panorama display system of claim 1, wherein: and a buffer rubber pad is adhered to the closed surface of the second display board (7).
7. The VR-based power system two-dimensional device panorama display system of claim 1, wherein: the shape and size of the groove (11) and the size of the lug (13) are the same, and the groove and the lug are of matching structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910220974.3A CN109961691B (en) | 2019-03-22 | 2019-03-22 | Power system two-dimensional equipment panorama display system based on VR |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910220974.3A CN109961691B (en) | 2019-03-22 | 2019-03-22 | Power system two-dimensional equipment panorama display system based on VR |
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| CN109961691A CN109961691A (en) | 2019-07-02 |
| CN109961691B true CN109961691B (en) | 2021-07-27 |
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| CN201910220974.3A Active CN109961691B (en) | 2019-03-22 | 2019-03-22 | Power system two-dimensional equipment panorama display system based on VR |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110738926A (en) * | 2019-10-16 | 2020-01-31 | 安徽正风建设工程有限公司 | Multi-region integrated display system of VR + intelligent display boards |
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| JP2004522990A (en) * | 2000-12-15 | 2004-07-29 | コピン コーポレーション | Display housing |
| TW555117U (en) * | 2003-02-26 | 2003-09-21 | Tzung-Han Shiu | Frame with digital video player |
| GB2552084B (en) * | 2014-01-29 | 2018-08-01 | Illinois Tool Works | A locker system |
| EP3302172B1 (en) * | 2015-06-03 | 2024-01-31 | Ergotron, Inc. | Free-standing workstation assembly with lift mechanisms |
| CN205384855U (en) * | 2016-01-28 | 2016-07-13 | 延安大学西安创新学院 | Convenient bill -board of dismantling |
| CN206058793U (en) * | 2016-10-08 | 2017-03-29 | 千喆 | A kind of advertisement media propaganda frame |
| CN206179249U (en) * | 2016-10-17 | 2017-05-17 | 江西虚拟现实智能产业有限公司 | Panorama show stand based on VR technique |
| CN206792040U (en) * | 2016-12-01 | 2017-12-26 | 照彰实业（东莞）有限公司 | Lift computer working table |
| CN206460636U (en) * | 2017-02-07 | 2017-09-01 | 焦作大学 | A kind of new literature aided education exhibiting device |
| CN206546665U (en) * | 2017-03-07 | 2017-10-10 | 辽宁机电职业技术学院 | A kind of Mechanical Design Teaching model support |
| CN206697073U (en) * | 2017-04-11 | 2017-12-01 | 辽东学院 | A kind of new pre-primary education teachers's showing stand |
| CN107456001A (en) * | 2017-09-15 | 2017-12-12 | 苏州发百纺织有限公司 | A kind of textile showcase for possessing spinfunction |
| CN107818699A (en) * | 2017-10-23 | 2018-03-20 | 天津欧本创意科技有限公司 | A kind of multimedia teaching console |
| CN208141695U (en) * | 2017-12-25 | 2018-11-23 | 广州市创壹广告设计有限公司 | A kind of bus platform exploitation board |
| CN208256115U (en) * | 2018-03-17 | 2018-12-18 | 漯河食品职业学院 | A kind of Literature Teaching assistant teaching aid |
| CN208351773U (en) * | 2018-04-27 | 2019-01-08 | 长春汽车经济技术开发区第二实验学校 | A kind of Physical Experiment displaying device |
| CN108766060A (en) * | 2018-05-28 | 2018-11-06 | 李世遗 | A kind of mathematical education multifunction teaching displaying device |
| CN208488925U (en) * | 2018-06-01 | 2019-02-12 | 天津乐橙时代科技有限公司 | A kind of solid exhibition device for corporate image |
| CN108775162A (en) * | 2018-06-26 | 2018-11-09 | 云和漫行者玩具有限公司 | A kind of adjustable height tray rack suitable for high-rise building |
| CN108577387A (en) * | 2018-07-02 | 2018-09-28 | 福建泉州万通工业设计有限公司 | A kind of machine components promotional display exhibition booth |
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2019
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