CN112735299B - Multimedia electronic commerce show board - Google Patents
Multimedia electronic commerce show board Download PDFInfo
- Publication number
- CN112735299B CN112735299B CN202011529055.3A CN202011529055A CN112735299B CN 112735299 B CN112735299 B CN 112735299B CN 202011529055 A CN202011529055 A CN 202011529055A CN 112735299 B CN112735299 B CN 112735299B
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- Prior art keywords
- block
- display board
- groove
- rod
- base
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- 230000001681 protective effect Effects 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims description 3
- 210000000056 organ Anatomy 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 239000000428 dust Substances 0.000 abstract description 14
- 238000000034 method Methods 0.000 description 6
- 210000003437 trachea Anatomy 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 241000252254 Catostomidae Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012769 display material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
Images
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/14—Wipes; Absorbent members, e.g. swabs or sponges
- B08B1/143—Wipes
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B19/00—Teaching not covered by other main groups of this subclass
-
- 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
- G09F15/00—Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like
- G09F15/0068—Modular articulated structures, e.g. stands, and articulation means therefor
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Business, Economics & Management (AREA)
- Entrepreneurship & Innovation (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
Abstract
The invention relates to the technical field of display boards, in particular to a multimedia electronic commerce display board which comprises a base, a mounting seat fixedly mounted on the base and a display board fixedly mounted on the mounting seat, wherein a chute is formed in the mounting seat, a moving block is slidably mounted in the chute, a plurality of idler wheels are symmetrically and rotatably mounted on the moving block, a protective frame is fixedly mounted on the moving block and sleeved on the outer side of the display board, a groove is formed in the base, a plurality of universal wheels are symmetrically arranged in the groove, wheel columns are fixedly mounted on the universal wheels, and one ends of the wheel columns are hinged to the base; according to the invention, by adopting a linkage structure, the whole device is fixed with the ground through the sucker while the universal wheels are accommodated in the groove, and the display board is exposed for display work by opening the protective frame, so that the practicability of the whole device is improved through an automatic effect, and dust is accumulated on the surface of the display board.
Description
Technical Field
The invention relates to the technical field of display boards, in particular to a multimedia electronic commerce display board.
Background
The display board is a plate-shaped medium used for releasing and displaying information, and is made of paper, new materials, metal materials and the like, and the electronic commerce display board is a tool for placing display materials and conducting teaching explanation.
The existing display board is simple in structure and single in function, when the display board is not used for a long time, a large amount of dust can be accumulated on the surface of the display board, the display board needs to be manually cleaned by workers, a large amount of time is consumed, and the automation degree of the existing display board is low.
Disclosure of Invention
The present invention is directed to a multimedia e-commerce display board, which solves the above problems.
In order to achieve the purpose, the invention provides the following technical scheme:
a multimedia electronic commerce display board comprises a base, a mounting seat fixedly mounted on the base and a display board fixedly mounted on the mounting seat, wherein a chute is formed in the mounting seat, a moving block is arranged in the chute in a sliding manner, a plurality of idler wheels are symmetrically and rotatably mounted on the moving block, a protective frame is fixedly mounted on the moving block and sleeved on the outer side of the display board, a groove is formed in the base, a plurality of universal wheels are symmetrically arranged in the groove, wheel columns are fixedly mounted on the universal wheels, one ends of the wheel columns are hinged with the base, a plurality of sliding blocks are symmetrically and slidably mounted in the groove, a driving rod is hinged between each sliding block and each wheel column, a threaded rod is rotatably mounted in the groove and penetrates through each sliding block and is in threaded fit with each other, suckers are symmetrically arranged on two sides of the base, and a plurality of hollow blocks are symmetrically and fixedly mounted on two sides of the base, the one end slidable mounting of sucking disc is in the hollow block, be equipped with the driving medium between hollow block and the movable block, the driving medium includes trachea and a plurality of connecting pipe, trachea fixed mounting is in the mount pad, and passes through the connecting pipe intercommunication between trachea and the hollow block, the intraductal symmetry slidable mounting of trachea has the piston, tracheal outer wall cover is equipped with the lagging with movable block fixed mounting, just all be equipped with the magnet of inhaling mutually in lagging and the piston, the one end of hollow block is equipped with stop gear.
Further: the internal threads of the sliding blocks on the two sides in the groove are opposite in direction.
Further: the limiting mechanism comprises a limiting rod, a clamping rod and an air bag, wherein one end of the limiting rod is inserted into the hollow block in a sliding mode, the limiting rod is elastically connected with the hollow block, and a clamping groove is formed in the limiting rod.
Further: the clamping rod is F-shaped, the first end of the clamping rod is slidably mounted on the hollow block, the second end of the clamping rod is inserted into the clamping groove and matched with the clamping groove, the third end of the clamping rod is fixedly connected with the hollow block through an air bag, and the air bag is communicated with the sucker through an organ pipe.
And further: the dust removing wiping plates are symmetrically and fixedly arranged on the inner sides of the protection frames, and the dust removing wiping plates are in sliding fit with the display plate.
And further: the movable block is internally provided with a locking groove, a trapezoidal block is fixedly arranged in the locking groove, and two sides of the mounting seat are positioned on a moving path of the trapezoidal block and hinged with clamping blocks.
And further: and a torsional spring is arranged at the hinged position of the clamping block.
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
1. the invention is provided with a protective frame, a groove, a universal wheel, a wheel column, a driving rod, a slide block, a threaded rod, a chute, a moving block, a roller, an air pipe, a sleeve plate, a piston, a sucker, a hollow block, a connecting pipe, a limiting rod, a clamping rod, an air bag and a clamping groove, wherein the threaded rod rotates to drive the slide blocks to move close to each other, so that the wheel column drives the universal wheel to rotate anticlockwise along the hinged part of the wheel column under the action of the driving rod, the universal wheel is accommodated in the groove, in the process, the sucker is contacted with the ground, so that the air between the sucker and the ground is injected into the air bag, the air bag expands to drive the clamping rod to move upwards, the second end of the clamping rod is separated from the clamping groove, the limiting rod is separated from the limit of the position of the sucker and moves upwards along the hollow block under the action of elastic restoring force, and the air in the hollow block is injected into the air pipe through the connecting pipe, under the effect of atmospheric pressure for the relative mount pad of piston removes to both sides, under the effect of magnet, drives movable block and protecting frame and removes to both sides along the spout, through the structure that adopts the linkage, when making in the universal wheel accomodates the recess, fixes between with whole device and the ground through the sucking disc, and opens the protecting frame and expose the show tablet and carry out the show work, through automatic effect, has improved the practicality of whole device, and the dust is piled up on the show board surface.
2. According to the invention, by arranging the locking groove, the trapezoidal block, the clamping block and the dust removal wiping plate, when the moving block moves to two sides of the mounting seat along the sliding groove, the clamping block is clamped into the locking groove, so that the clamping block moves to one side of the trapezoidal block and is in interference fit with the trapezoidal block, the piston reset caused by the phenomenon of air leakage of the hollow block is avoided, and the dust removal wiping plate is driven to move in the process that the trapezoidal block drives the protection frame to move, so that the dust on two side surfaces of the display plate is cleaned, the surface of the display plate is ensured to be clean, and the manual cleaning work is avoided.
Drawings
FIG. 1 is a schematic view of a multimedia electronic commerce display board;
FIG. 2 is a cross-sectional view of a display board and a protection frame in a multimedia e-commerce display board;
FIG. 3 is an enlarged partial structural view of a multimedia E-commerce show board at A;
FIG. 4 is an enlarged partial structural view of a multimedia E-commerce show board at B;
FIG. 5 is an enlarged partial structural view of a multimedia E-commerce show board at C;
FIG. 6 is a schematic view of a position-limiting rod and a clamping rod of the multimedia E-commerce display board.
The reference numerals in the schematic drawings illustrate:
the device comprises a base 1, a mounting seat 2, a display board 3, a protective frame 4, a groove 5, a universal wheel 6, a wheel column 7, a driving rod 8, a sliding block 9, a threaded rod 10, a sliding chute 11, a moving block 12, a roller 13, an air pipe 14, a sleeve plate 15, a piston 16, a locking groove 17, a trapezoidal block 18, a clamping block 19, a dedusting wiping plate 20, a sucking disc 21, a hollow block 22, a connecting pipe 23, a limiting rod 24, a clamping rod 25, an air bag 26 and a clamping groove 27.
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 obtained by a person skilled in the art without making any creative effort based on the embodiments of the present invention, belong to the protection scope of the present invention, and the present invention is further described with reference to the embodiments below.
Referring to fig. 1, 3, 4 and 6, in an embodiment of the present invention, a multimedia e-commerce display board includes a base 1, a mounting base 2 fixedly mounted on the base 1, and a display board 3 fixedly mounted on the mounting base 2, wherein a sliding slot 11 is provided on the mounting base 2, a moving block 12 is slidably mounted in the sliding slot, a plurality of rollers 13 are symmetrically and rotatably mounted on the moving block 12, a protective frame 4 is fixedly mounted on the moving block 12, the protective frame 4 is sleeved on an outer side of the display board 3, a groove 5 is provided on the base 1, a plurality of universal wheels 6 are symmetrically disposed in the groove 5, a wheel post 7 is fixedly mounted on the universal wheel 6, one end of the wheel post 7 is hinged to the base 1, a plurality of sliding blocks 9 are symmetrically and slidably mounted in the groove 5, a driving rod 8 is hinged between the sliding blocks 9 and the wheel post 7, a threaded rod 10 is rotatably mounted in the groove 5, the threaded rod 10 penetrates through the sliding block 9 and is in threaded fit with the sliding block 9, the directions of internal threads of the sliding block 9 on two sides in the groove 5 are opposite, sucking discs 21 are symmetrically arranged on two sides of the base 1, a plurality of hollow blocks 22 are symmetrically and fixedly arranged on two sides of the base 1, one end of each sucking disc 21 is slidably arranged in each hollow block 22, a transmission part is arranged between each hollow block 22 and the corresponding movable block 12 and comprises an air pipe 14 and a plurality of connecting pipes 23, the air pipe 14 is fixedly arranged in the corresponding mounting seat 2, the air pipe 14 is communicated with the corresponding hollow block 22 through the corresponding connecting pipe 23, pistons 16 are symmetrically and slidably arranged in the air pipe 14, a sleeve plate 15 fixedly arranged on the corresponding movable block 12 is sleeved on the outer wall of the air pipe 14, magnets which attract each other are arranged in the sleeve plate 15 and the corresponding pistons 16, and a limiting mechanism is arranged at one end of each hollow block 22;
the limiting mechanism comprises a limiting rod 24, a clamping rod 25 and an air bag 26, one end of the limiting rod is inserted into the hollow block 22 in a sliding mode, the limiting rod 24 is connected with the hollow block 22 in an elastic mode, a clamping groove 27 is formed in the limiting rod 24, the clamping rod 25 is F-shaped, the first end of the clamping rod is installed on the hollow block 22 in a sliding mode, the second end of the clamping rod 25 is inserted into the clamping groove 27 and matched with the clamping groove 27, the third end of the clamping rod is fixedly connected with the hollow block 22 through the air bag 26, and the air bag 26 is communicated with the suction cup 21 through an organ pipe.
In practical application, the threaded rod 10 rotates to drive the sliding blocks 9 to move close to each other, and further under the action of the driving rod 8, the wheel post 7 drives the universal wheel 6 to rotate anticlockwise along the hinged position of the wheel post 7, so that the universal wheel 6 is accommodated in the groove 5, in the process, the sucker 21 is in contact with the ground, so that gas between the sucker 21 and the ground is injected into the air bag 26, the air bag 26 is expanded to drive the clamping rod 25 to move upwards, further the second end of the clamping rod 25 is separated from the clamping groove 27, under the action of elastic restoring force, the limiting rod 24 is separated from the limit of the position of the sucker 21 and moves upwards along the hollow block 22, the gas in the hollow block 22 is injected into the gas pipe 14 through the connecting pipe 23, under the action of air pressure, the piston 16 moves towards two sides relative to the mounting seat 2, under the action of the magnet, the moving block 12 and the protective frame 4 are driven to move towards two sides along the sliding groove 11, through the structure that adopts the linkage for when the universal wheel 6 accomodates in the recess 5, fix between with whole device and the ground through sucking disc 21, and open protective frame 4 and expose show tablet 3 and carry out the show work, through automatic effect, improved the practicality of whole device, the dust is piled up on show board 3 surface.
Further, referring to fig. 1, fig. 2, fig. 3 and fig. 5, as a preferred embodiment of the present invention, a dust-removing wiping plate 20 is symmetrically installed and fixed on the inner side of the protective frame 4, the dust-removing wiping plate 20 is in sliding fit with the display plate 3, a lock slot 17 is arranged in the moving block 12, a trapezoidal block 18 is fixedly installed in the lock slot 17, two sides of the installation seat 2 are hinged to a fixture block 19 on a moving path of the trapezoidal block 18, and a torsion spring is arranged at a hinge of the fixture block 19.
When moving block 12 moves to the both sides of mount pad 2 along spout 11, make fixture block 19 card go into in the locked groove 17, thereby make fixture block 19 move one side of trapezoidal piece 18 and with conflict cooperation between the trapezoidal piece 18, the phenomenon of avoiding appearing hollow block 22 and appearing leaking gas leads to piston 16 to reset, and at the in-process that trapezoidal piece 18 drove protection frame 4 and remove, drive dust removal wipe board 20 and remove, and then carry out the cleaning work to the dust of 3 both sides faces of show board, the cleanness on 3 surfaces of show board has been guaranteed, the work of artifical manual clearance is avoided.
With the above embodiment, the working principle of the present invention is as follows:
when the device is used, the threaded rod 10 rotates to drive the sliding blocks 9 to move close to each other, and further under the action of the driving rod 8, the wheel post 7 drives the universal wheel 6 to rotate anticlockwise along the hinged position of the wheel post 7, so that the universal wheel 6 is accommodated in the groove 5, in the process, the sucker 21 is contacted with the ground, so that gas between the sucker 21 and the ground is injected into the air bag 26, the air bag 26 is expanded to drive the clamping rod 25 to move upwards, further the second end of the clamping rod 25 is separated from the clamping groove 27, under the action of elastic restoring force, the limiting rod 24 is separated from the limit of the position of the sucker 21 and moves upwards along the hollow block 22, the gas in the hollow block 22 is injected into the gas pipe 14 through the connecting pipe 23, under the action of air pressure, the piston 16 moves towards two sides relative to the mounting seat 2, and under the action of the magnet, the moving block 12 and the protective frame 4 are driven to move towards two sides along the sliding groove 11, through the structure that adopts the linkage for when the universal wheel 6 accomodates in the recess 5, fix between with whole device and the ground through sucking disc 21, and open protective frame 4 and expose show tablet 3 and carry out the show work, through automatic effect, improved the practicality of whole device, the dust is piled up on show board 3 surface.
When moving block 12 moves to the both sides of mount pad 2 along spout 11, make fixture block 19 card go into in the locked groove 17, thereby make fixture block 19 move one side of trapezoidal piece 18 and with conflict cooperation between the trapezoidal piece 18, the phenomenon of avoiding appearing hollow block 22 and appearing leaking gas leads to piston 16 to reset, and at the in-process that trapezoidal piece 18 drove protection frame 4 and remove, drive dust removal wipe board 20 and remove, and then carry out the cleaning work to the dust of 3 both sides faces of show board, the cleanness on 3 surfaces of show board has been guaranteed, the work of artifical manual clearance is avoided.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. A multimedia electronic commerce display board comprises a base (1), a mounting seat (2) fixedly mounted on the base (1) and a display board (3) fixedly mounted on the mounting seat (2), and is characterized in that a sliding groove (11) is formed in the mounting seat (2), a moving block (12) is slidably mounted in the sliding groove, a plurality of idler wheels (13) are symmetrically and rotatably mounted on the moving block (12), a protective frame (4) is fixedly mounted on the moving block (12), the protective frame (4) is sleeved on the outer side of the display board (3), a groove (5) is formed in the base (1), a plurality of universal wheels (6) are symmetrically arranged in the groove (5), wheel posts (7) are fixedly mounted on the universal wheels (6), one end of each wheel post (7) is hinged to the base (1), and a plurality of sliding blocks (9) are symmetrically and slidably mounted in the groove (5), a driving rod (8) is hinged between the sliding block (9) and the wheel post (7), a threaded rod (10) is rotatably installed in the groove (5), the threaded rod (10) penetrates through the sliding block (9) and is in threaded fit with the sliding block (9), sucking discs (21) are symmetrically arranged on two sides of the base (1), a plurality of hollow blocks (22) are symmetrically and fixedly installed on two sides of the base (1), one end of each sucking disc (21) is slidably installed in each hollow block (22), a transmission part is arranged between each hollow block (22) and the corresponding moving block (12), the transmission part comprises an air pipe (14) and a plurality of connecting pipes (23), the air pipe (14) is fixedly installed in the installation base (2), the air pipe (14) is communicated with the hollow blocks (22) through the connecting pipes (23), pistons (16) are symmetrically and slidably installed in the air pipe (14), and a sleeve plate (15) fixedly installed with the moving block (12) is sleeved on the outer wall of the air pipe (14), magnets which attract each other are arranged in the sleeve plate (15) and the piston (16), and one end of the hollow block (22) is provided with a limiting mechanism;
through threaded rod (10) rotate, drive and do between slider (9) and be close to the motion, and then through the effect of actuating lever (8) for wheel post (7) drive universal wheel (6) along the articulated department anticlockwise rotation of wheel post (7), make in universal wheel (6) accomodate recess (5).
2. The multimedia ecommerce presentation board as claimed in claim 1, wherein the direction of the internal threads of the sliding blocks (9) at both sides of the recess (5) is opposite.
3. The multimedia electronic commerce display board of claim 1, wherein the limiting mechanism comprises a limiting rod (24) with one end slidably inserted in the hollow block (22), a clamping rod (25) and an air bag (26), the limiting rod (24) and the hollow block (22) are elastically connected, and a clamping groove (27) is formed in the limiting rod (24).
4. The multimedia electronic commerce display board of claim 3, wherein the clip rod (25) is in an F shape, a first end of the clip rod is slidably mounted on the hollow block (22), a second end of the clip rod (25) is inserted into the slot (27) and is matched with the slot (27), a third end of the clip rod is fixedly connected with the hollow block (22) through the air bag (26), and the air bag (26) is communicated with the suction cup (21) through an organ pipe.
5. The multimedia electronic commerce display board as claimed in claim 1, wherein the dust-removing wiper (20) is symmetrically installed and fixed on the inner side of the protection frame (4), and the dust-removing wiper (20) is in sliding fit with the display board (3).
6. The multimedia electronic commerce display board of claim 5, wherein a locking groove (17) is formed in the moving block (12), a trapezoidal block (18) is fixedly installed in the locking groove (17), and two sides of the mounting seat (2) are located on a moving path of the trapezoidal block (18) and are hinged with a clamping block (19).
7. The multimedia ecommerce display board as claimed in claim 6, wherein a torsion spring is provided at the hinge of the latch (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011529055.3A CN112735299B (en) | 2020-12-22 | 2020-12-22 | Multimedia electronic commerce show board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011529055.3A CN112735299B (en) | 2020-12-22 | 2020-12-22 | Multimedia electronic commerce show board |
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| Publication Number | Publication Date |
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| CN112735299A CN112735299A (en) | 2021-04-30 |
| CN112735299B true CN112735299B (en) | 2021-08-13 |
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| CN202011529055.3A Active CN112735299B (en) | 2020-12-22 | 2020-12-22 | Multimedia electronic commerce show board |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113689783B (en) * | 2021-09-01 | 2023-08-25 | 江西交通职业技术学院 | A Display Device for Ideology and Politics |
| CN113947989A (en) * | 2021-09-29 | 2022-01-18 | 华北水利水电大学 | Building presentation device based on CAD basic model |
| CN113936507B (en) * | 2021-10-22 | 2023-08-01 | 江苏经贸职业技术学院 | A teaching device that is used for finance teaching can be from stretching convenient displacement |
| CN114794815B (en) * | 2022-06-01 | 2023-09-08 | 王玉云 | Art design show shelf |
| CN117593970B (en) * | 2024-01-19 | 2024-03-22 | 江苏印象乾图文化科技有限公司 | Outdoor network advertisement broadcast multimedia presentation device with adjustable |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205247729U (en) * | 2015-12-23 | 2016-05-18 | 孔爱 | Novel education of physics mechanics device |
| CN105976647B (en) * | 2016-07-29 | 2018-08-31 | 哈工大机器人集团（广州）知识产权投资控股有限公司哈尔滨分公司 | A kind of teaching special intelligent demonstration equipment |
| CN106023664B (en) * | 2016-07-29 | 2018-12-07 | 上海恒企教育培训有限公司 | A kind of electronic commerce teaching special intelligent presentation device |
| CN207106008U (en) * | 2017-01-05 | 2018-03-16 | 刘瑶 | A kind of picture-drawing device |
| CN208208119U (en) * | 2017-11-21 | 2018-12-07 | 施立平 | A kind of interactive English teaching hand-held collection audio frequency and video acquisition device |
| CN208580541U (en) * | 2018-04-29 | 2019-03-05 | 四川国禹建设有限公司 | A kind of radix saposhnikoviae warning sign |
| CN211380544U (en) * | 2018-09-06 | 2020-09-01 | 李晓棣 | Mobilizable multi-functional student guides display device with innovation |
| CN111409350A (en) * | 2020-04-27 | 2020-07-14 | 宿迁学院 | Roll paper combination formula lithography apparatus convenient to remove and fix |
| CN212061639U (en) * | 2020-06-26 | 2020-12-01 | 郝翠霞 | Macroscopic economics national economy circulation demonstration model |
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