CN110018718B - Intelligent display terminal - Google Patents
Intelligent display terminal Download PDFInfo
- Publication number
- CN110018718B CN110018718B CN201910404537.7A CN201910404537A CN110018718B CN 110018718 B CN110018718 B CN 110018718B CN 201910404537 A CN201910404537 A CN 201910404537A CN 110018718 B CN110018718 B CN 110018718B
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- Prior art keywords
- fixing plate
- lifting
- assembly
- display screen
- storage box
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- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 230000007306 turnover Effects 0.000 claims abstract description 13
- 230000001360 synchronised effect Effects 0.000 claims abstract description 9
- 235000004443 Ricinus communis Nutrition 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000000007 visual effect Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/42—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters with arrangement for propelling the support stands on wheels
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1601—Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M2200/00—Details of stands or supports
- F16M2200/08—Foot or support base
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Freezers Or Refrigerated Showcases (AREA)
Abstract
The invention discloses an intelligent display terminal, which comprises a storage box body and a display screen, wherein a lifting turnover mechanism is arranged between the display screen and the storage box body, the lifting turnover mechanism comprises a lifting module and a turnover module, and the lifting module comprises a first stepping motor, a synchronous belt assembly, a ball screw assembly, a linear slide rail and a lifting block; the overturning module comprises an electric push rod, a supporting shaft and a connecting rod. This intelligent display terminal can realize the lift and the angle upset of display screen when the exhibition through setting up promotion tilting mechanism and truckle telescopic machanism to and the truckle of whole equipment supports to stretch out, can accomodate the display screen after the exhibition is finished again, have that the structure is succinct, convenient operation, structural stability is good during the exhibition, the angle can be adjusted and be convenient for visual appreciation, and be convenient for accomodate storage, safety and occupation space advantage such as not after the exhibition.
Description
Technical Field
The invention relates to an intelligent display terminal which is mainly used for exhibition.
Background
Along with the development of science and technology, people begin to demonstrate product information and the like through electronic display screens, and because the general time of exhibition is shorter, the display frames and the display screens need to be installed and disassembled before and after the exhibition, and the workload is relatively large.
Disclosure of Invention
In order to overcome the defects, the invention provides the intelligent display terminal which is simple to operate and convenient to use, and a display screen is not required to be installed and detached.
The technical scheme adopted by the invention for solving the technical problems is as follows: the intelligent display terminal comprises a storage box body and a display screen arranged in the storage box body, wherein a lifting turnover mechanism is arranged between the display screen and the storage box body and comprises a lifting module and a turnover module, the lifting module comprises a first stepping motor, a synchronous belt assembly, a ball screw assembly, linear sliding rails and lifting blocks, the ball screw assembly and the linear sliding rails are arranged in the storage box body at intervals along the vertical direction, the lifting blocks are fixedly fixed on the linear sliding rails and are fixedly connected with lifting nuts of the ball screw assembly at the same time, the lifting nuts are sleeved on a screw rod of the ball screw assembly through threads, and the first stepping motor drives the screw rod of the ball screw assembly to rotate through the synchronous belt assembly; the overturning module comprises an electric push rod, a supporting shaft and a connecting rod, wherein the electric push rod is arranged on the lifting block and hinged with one end of the connecting rod, the other end of the connecting rod is hinged with the back surface of the display screen, the middle part of the display screen is rotatably fixed on the supporting shaft, and the supporting shaft is simultaneously fixed on the upper end part of the lifting block.
As a further improvement of the invention, the bottom of the storage box body is provided with a trundle telescopic mechanism, the trundle telescopic mechanism comprises a second stepping motor, a gear transmission assembly, a left-right spiral trapezoidal screw rod assembly, a left connecting bracket, a left trundle fixing plate, a left linear sliding rail, a right connecting bracket, a right trundle fixing plate and a right linear sliding rail, the left-right spiral trapezoidal screw rod assembly, the left trundle fixing plate, the left linear sliding rail, the right trundle fixing plate and the right linear sliding rail are arranged in parallel, the left trundle fixing plate is fixed on a sliding block of the left linear sliding rail, and the right trundle fixing plate is fixed on a sliding block of the right linear sliding rail; the second stepping motor drives the screw rod of the left-right spiral trapezoidal screw rod assembly to rotate through the gear transmission assembly, one end of the left connecting bracket is fixedly connected with a left moving nut of the left-right spiral trapezoidal screw rod assembly, and the other end of the left connecting bracket is fixedly connected with the left caster fixing plate; one end of the right connecting bracket is fixedly connected with the right moving nut of the left-right spiral trapezoidal screw rod assembly, and the other end of the right connecting bracket is fixedly connected with the right caster fixing plate.
As a further improvement of the invention, a left castor is fixed on the left castor fixing plate, and a right castor is fixed on the right castor fixing plate.
As a further improvement of the invention, photoelectric switches are arranged at the two ends of the screw rod of the left-right spiral trapezoid screw rod assembly, and shading sheets are respectively arranged at the opposite outermost ends of the left caster fixing plate and the right caster fixing plate.
As a further improvement of the present invention, the left and right connection brackets are perpendicular to the left and right caster fixing plates, respectively.
As a further improvement of the invention, a connecting rod connecting block is arranged above the back of the display screen, and the other end of the connecting rod is hinged with the connecting rod connecting block through a rotating shaft.
As a further improvement of the invention, a central connecting block is arranged at the central position of the back of the display screen, a connecting hole is arranged on the central connecting block, and the supporting shaft is movably arranged in the connecting hole in a penetrating way.
As a further improvement of the invention, the storage box body is provided with a box body upper cover.
As a further development of the invention, the storage box is formed by an aluminum profile frame and a housing.
The beneficial effects of the invention are as follows: this intelligent display terminal can realize the lift and the angle upset of display screen when the exhibition through setting up promotion tilting mechanism and truckle telescopic machanism to and the truckle of whole equipment supports to stretch out, can accomodate the display screen after the exhibition is finished again, have that the structure is succinct, convenient operation, structural stability is good during the exhibition, the angle can be adjusted and be convenient for visual appreciation, and be convenient for accomodate storage, safety and occupation space advantage such as not after the exhibition.
Drawings
FIG. 1 is a schematic diagram showing a state structure of the present invention;
FIG. 2 is a schematic diagram showing a display screen in an open display state by the lifting and overturning mechanism;
FIG. 3 is a schematic view of the lifting and turning mechanism of the present invention in a folding state of a display screen;
FIG. 4 is a schematic view of the retractable caster mechanism of the present invention;
FIG. 5 is a schematic view of another view angle structure of FIG. 1;
FIG. 6 is a schematic view of the caster telescoping mechanism of the present invention in an open position;
Fig. 7 is a schematic view of another view structure of fig. 6.
The following description is made with reference to the accompanying drawings:
1, a storage box body; 2-a display screen;
301—a first stepper motor; 302—a synchronous belt assembly;
303—a ball screw assembly; 304-linear slide rail;
305—a lifting block; 401-electric push rod;
402—a support shaft; 403—a connecting rod;
404—a connecting rod connection block; 405—a central connection block;
501-a second stepper motor; 502—a gear assembly;
503-left and right spiral trapezoidal screw rod assembly; 504—left connecting bracket;
505—left caster mounting plate; 506—a left linear slide;
507-right connecting bracket; 508—a right caster mounting plate;
509-a right linear slide rail; 510—a photoelectric switch;
511-left castor; 512-right caster.
Detailed Description
A preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. The scope of the invention is not limited to the following examples, but is intended to be limited only by the appended claims and the equivalents and modifications thereof, which fall within the scope of the invention.
Referring to fig. 1-7, an intelligent display terminal according to the present invention includes a storage box 1 and a display screen 2 disposed in the storage box, a lifting and turning mechanism is disposed between the display screen and the storage box, the lifting and turning mechanism includes a lifting module and a turning module, the lifting module includes a first stepping motor 301, a synchronous belt assembly 302, a ball screw assembly 303, a linear slide rail 304, and a lifting block 305, the ball screw assembly 303 and the linear slide rail 304 are disposed in the storage box at intervals along a vertical direction, the lifting block 305 is slidably fixed on the linear slide rail 304 and is simultaneously fixedly connected with a lifting nut of the ball screw assembly 303, the lifting nut is sleeved on a screw rod of the ball screw assembly 303 through threads, and the first stepping motor 301 drives the screw rod of the ball screw assembly 303 to rotate through the synchronous belt assembly 302; the turnover module comprises an electric push rod 401, a supporting shaft 402 and a connecting rod 403, wherein the electric push rod is arranged on the lifting block and hinged with one end of the connecting rod, the other end of the connecting rod is hinged with the back surface of the display screen, the middle part of the display screen is rotatably fixed on the supporting shaft, and the supporting shaft is simultaneously fixed on the upper end part of the lifting block.
When the display screen needs to be exhibited, namely, the display screen is lifted out of the storage box body and turned over, the action of the lifting and turning mechanism can be controlled by the remote controller, and the display screen is concretely as follows: the lifting module is started first, the first stepping motor 301 of the lifting module drives the screw rod of the ball screw assembly 303 to rotate through the synchronous belt assembly 302, the screw rod rotates to drive the lifting nut sleeved on the screw rod to lift, and the lifting block 305 is fixed with the lifting nut, so that the lifting block 305 is driven to lift along the linear slide rail 304. And then the overturning module is started, and when the overturning module is started, the electric push rod 41 stretches out to drive the connecting rod 403 to stretch out, so that the display screen rotates by 0-90 degrees relative to the supporting shaft 402, and the requirements of different ornamental angles on the exhibition are met.
When the display screen is required to be stored after exhibition, the display screen is turned to the vertical direction through the turning module, namely, the display screen is attached to one side of the lifting module, then the lifting module is started to drive the lifting block to descend, and finally, the display screen and the lifting block are driven to be stored into the storage box body jointly, and an upper cover can be arranged on the storage box body so as to cover the whole storage box body.
The bottom of the storage box body is provided with a castor telescopic mechanism, the castor telescopic mechanism comprises a second stepping motor 501, a gear transmission assembly 502, a left-right spiral trapezoidal screw rod assembly 503, a left connecting bracket 504, a left castor fixing plate 505, a left linear slide rail 506, a right connecting bracket 507, a right castor fixing plate 508 and a right linear slide rail 509, the left-right spiral trapezoidal screw rod assembly 503, the left castor fixing plate 505, the left linear slide rail 506, the right castor fixing plate 508 and the right linear slide rail 509 are arranged in parallel, the left castor fixing plate 505 is fixed on a slide block of the left linear slide rail 506, and the right castor fixing plate 508 is fixed on a slide block of the right linear slide rail 509; the second stepper motor 501 drives the screw rod of the left-right spiral trapezoidal screw rod assembly 503 to rotate through the gear transmission assembly 502, one end of the left connecting bracket 504 is fixedly connected with a left moving nut of the left-right spiral trapezoidal screw rod assembly 503, and the other end of the left connecting bracket 504 is fixedly connected with the left caster fixing plate 505; one end of the right connecting bracket 507 is fixedly connected with a right moving nut of the left-right spiral trapezoid screw rod assembly 503, and the other end of the right connecting bracket 507 is fixedly connected with the right caster fixing plate 508.
When the display screen needs to be displayed, the remote controller can be manually controlled to finish the extension of the casters, and the specific working principle is as follows: the remote controller remotely controls the second stepping motor 501 to act, the second stepping motor 501 outputs power to the left-right spiral trapezoidal screw rod assembly 503 through the gear transmission assembly 502, the screw rod of the left-right spiral trapezoidal screw rod assembly 503 rotates, the left moving nut and the right moving nut on the screw rod respectively move outwards along the left end and the right end of the screw rod, and the movement of the left moving nut and the right moving nut respectively drive the left connecting bracket 504 and the right connecting bracket 507 which are fixedly connected with the left connecting bracket 504 and the right connecting bracket 507 to synchronously move left and right, so that the left caster fixing plate 505 and the right caster fixing plate 508 which are respectively fixedly connected with the left connecting bracket 504 and the right connecting bracket 507 are driven to synchronously move left and right, and the extending action of casters is realized.
The left caster wheel 11 is fixed on the left caster wheel fixing plate, the right caster wheel 12 is fixed on the right caster wheel fixing plate, and when the left caster wheel fixing plate and the right caster wheel fixing plate stretch out, the left caster wheel and the right caster wheel are driven to stretch out, and the distance between the left caster wheel and the right caster wheel is adjusted according to the needs so as to ensure the stability of the display screen during exhibition.
Photoelectric switches 510 are arranged at the two ends of the screw rod of the left-right spiral trapezoid screw rod assembly 503, shading sheets are respectively arranged at the opposite outermost ends of the left trundle fixing plate and the right trundle fixing plate, when the left trundle fixing plate and the right trundle fixing plate move to the outermost positions, the shading sheets contact the photoelectric switches 510, and the stepping motor receives signals to stop rotating, so that the extending action of the trundles is completed.
The left and right connection brackets 504 and 507 are perpendicular to the left and right caster fixing plates, respectively.
A connecting rod connecting block 404 is arranged above the back of the display screen, and the other end of the connecting rod is hinged with the connecting rod connecting block through a rotating shaft. The central connecting block 405 is arranged at the central position of the back of the display screen, a connecting hole is formed in the central connecting block 405, and the supporting shaft 402 movably penetrates through the connecting hole.
The storage box body is provided with a box body upper cover, and the storage box body 1 is composed of an aluminum profile frame and a shell.
The working flow of the intelligent display terminal is as follows:
When the exhibition is needed, the upper cover of the storage box body is firstly taken down or opened, the second stepping motor is controlled to work through the remote controller, the caster telescopic mechanism is opened, the extension of the two casters is completed, the two casters are extended to a set distance, and the stability of the display screen during the exhibition can be ensured.
Then, the lifting turnover mechanism is opened, the display screen is driven to rise to the outer side of the storage box body through the operation of the first stepping motor controlling the lifting module, then the turnover module is started, and the electric push rod of the turnover module drives the display screen to turn over 0-90 degrees through the connecting rod, so that the requirements of different ornamental angles on the exhibition are met.
When the exhibition is finished, the display screen is turned over and reset, then the display screen is lowered into the storage box body, the upper box cover of the storage box body is covered, and the two casters are folded through the caster telescopic mechanism, so that the whole equipment is folded.
Therefore, the intelligent display terminal can realize lifting and angle overturning of the display screen during exhibition through the lifting overturning mechanism and the truckle telescopic mechanism, and the truckle support of the whole equipment is unfolded, and the intelligent display terminal can store the display screen after the exhibition is finished.
Claims (8)
1. The utility model provides an intelligent display terminal, includes storage box (1) and locates display screen (2) in this storage box, its characterized in that: a lifting turnover mechanism is arranged between the display screen and the storage box body and comprises a lifting module and a turnover module, the lifting module comprises a first stepping motor (301), a synchronous belt assembly (302), a ball screw assembly (303), linear sliding rails (304) and lifting blocks (305), the ball screw assembly (303) and the linear sliding rails (304) are arranged in the storage box body at intervals along the vertical direction, the lifting blocks (305) are fixedly fixed on the linear sliding rails (304) in a sliding manner and are fixedly connected with lifting nuts of the ball screw assembly (303), the lifting nuts are sleeved on screw rods of the ball screw assembly (303) through threads, and the first stepping motor (301) drives the screw rods of the ball screw assembly (303) to rotate through the synchronous belt assembly (302); the turnover module comprises an electric push rod (401), a supporting shaft (402) and a connecting rod (403), wherein the electric push rod is arranged on the lifting block and hinged with one end of the connecting rod, the other end of the connecting rod is hinged with the back surface of the display screen, the middle part of the display screen is rotatably fixed on the supporting shaft, the supporting shaft is simultaneously fixed on the upper end part of the lifting block, a truckle telescoping mechanism is arranged at the bottom of the storage box body and comprises a second stepping motor (501), a gear transmission assembly (502), a left-right spiral trapezoidal screw rod assembly (503), a left connecting bracket (504), a left truckle fixing plate (505), a left linear slide rail (506), a right connecting bracket (507), a right truckle fixing plate (508) and a right linear slide rail (509), the left-right trapezoidal screw rod assembly (503), the left linear slide rail (506), the right truckle fixing plate (508) and the right linear slide rail (509) are arranged in parallel, and the truckle fixing plate (505) is fixed on the slide block (509) of the left linear slide rail (506); the second stepping motor (501) drives the screw rod of the left-right spiral trapezoid screw rod assembly (503) to rotate through the gear transmission assembly (502), one end of the left connecting bracket (504) is fixedly connected with a left moving nut of the left-right spiral trapezoid screw rod assembly (503), and the other end of the left connecting bracket (504) is fixedly connected with the left caster fixing plate (505); one end of the right connecting bracket (507) is fixedly connected with a right moving nut of the left-right spiral trapezoid screw rod assembly (503), and the other end of the right connecting bracket (507) is fixedly connected with the right caster fixing plate (508).
2. The intelligent display terminal of claim 1, wherein: a left castor (511) is fixed on the left castor fixing plate, and a right castor (512) is fixed on the right castor fixing plate.
3. The intelligent display terminal of claim 1, wherein: photoelectric switches (510) are arranged at two ends of a screw rod of the left-right spiral trapezoid screw rod assembly (503), and shading sheets are respectively arranged at the opposite outermost ends of the left caster fixing plate and the right caster fixing plate.
4. The intelligent display terminal of claim 1, wherein: the left connecting bracket (504) and the right connecting bracket (507) are respectively perpendicular to the left caster fixing plate and the right caster fixing plate.
5. The intelligent display terminal of claim 1, wherein: a connecting rod connecting block (404) is arranged above the back of the display screen, and the other end of the connecting rod is hinged with the connecting rod connecting block through a rotating shaft.
6. The intelligent display terminal of claim 1, wherein: the back central point of display screen puts and is equipped with center connecting block (405), is equipped with the connecting hole on this center connecting block (405), supporting axle (402) activity wears to locate in this connecting hole.
7. The intelligent display terminal of claim 1, wherein: the storage box body is provided with a box body upper cover.
8. The intelligent display terminal of claim 1, wherein: the storage box body (1) is composed of an aluminum profile frame and a shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910404537.7A CN110018718B (en) | 2019-05-15 | 2019-05-15 | Intelligent display terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910404537.7A CN110018718B (en) | 2019-05-15 | 2019-05-15 | Intelligent display terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110018718A CN110018718A (en) | 2019-07-16 |
| CN110018718B true CN110018718B (en) | 2024-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910404537.7A Active CN110018718B (en) | 2019-05-15 | 2019-05-15 | Intelligent display terminal |
Country Status (1)
| Country | Link |
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| CN (1) | CN110018718B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110477609A (en) * | 2019-08-29 | 2019-11-22 | 合肥惠科金扬科技有限公司 | Flip displays device and tea table |
| CN111077949B (en) * | 2019-11-28 | 2021-09-24 | 南通智才软件科技有限公司 | Convenient operation's software test equipment convenient to adjust |
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| CN2596382Y (en) * | 2002-06-17 | 2003-12-31 | 刘京 | Hiddenb type liquid crystal display lifter |
| JP2006125583A (en) * | 2004-10-29 | 2006-05-18 | Furukawa Co Ltd | Pedestal for camera |
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| Publication number | Publication date |
|---|---|
| CN110018718A (en) | 2019-07-16 |
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