CN110503897B - Multi-angle adjustable small-space display screen based on Internet of things - Google Patents
Multi-angle adjustable small-space display screen based on Internet of things Download PDFInfo
- Publication number
- CN110503897B CN110503897B CN201910789771.6A CN201910789771A CN110503897B CN 110503897 B CN110503897 B CN 110503897B CN 201910789771 A CN201910789771 A CN 201910789771A CN 110503897 B CN110503897 B CN 110503897B
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- display screen
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- internet
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- 239000000428 dust Substances 0.000 claims abstract description 48
- 238000000605 extraction Methods 0.000 claims abstract description 15
- 230000017525 heat dissipation Effects 0.000 claims description 7
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 4
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 4
- 241001330002 Bambuseae Species 0.000 claims description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 4
- 239000011425 bamboo Substances 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 230000006855 networking Effects 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/04—Cleaning by suction, with or without auxiliary action
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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
- F16M11/12—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction
- F16M11/14—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction with ball-joint
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- 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
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention relates to the technical field of small-spacing display screens, and discloses a multi-angle adjustable small-spacing display screen based on the Internet of things, which comprises a display screen box body, wherein an LED display screen is embedded in the display screen box body, the LED display screen is fixedly connected with the display screen box body, the rear surface of the display screen box body is fixedly connected with a shell, and the rear surface of the shell is fixedly connected with a plurality of cylinders; set up first slide rail in the both sides of display screen box body, be connected with the spheroid No. two in the first slide rail, the spheroid can slide from top to bottom in first slide rail No. two, also can rotate in first slide rail, one side No. two of spheroid is fixed with the connecting plate through the quarter butt, the connecting plate front surface sets up the second slide rail, be provided with the dust extraction box between two second slide rails, contain dust absorption component in the dust extraction box, the dust absorption principle is the same with the dust catcher principle, the dust extraction box can slide from top to bottom before the display screen, do benefit to the dust on the clearance display screen.
Description
Technical Field
The invention relates to the technical field of small-spacing display screens, in particular to a multi-angle adjustable small-spacing display screen based on the Internet of things.
Background
The small-space LED display screen is a general name of a whole set of system, and comprises an LED display system, a high-definition display control system, a heat dissipation system and the like. The small-space LED display screen is a product in the development of the Internet of things, and the small-space LED display screen adopts a pixel-level point control technology to realize the state control of the reducibility and the uniformity of the brightness and the color of a pixel unit of the display screen. The automatic reflow soldering process is adopted in the production process of the display screen, and manual post soldering is not needed.
The prior art has the following problems:
(1) after the existing small-distance display screen is installed, a user cannot conveniently adjust the angle of the display screen, and certain defects exist during watching;
(2) after the small-spacing display screen is used for a period of time, dust is accumulated on the surface of the display screen, the display screen looks clean and sanitary, discomfort is caused to people, and the watching experience of a user is influenced;
(3) when outdoor sunlight is strong, light penetrates through the glass and irradiates the display screen, and when a user watches the display screen, the surface of the display screen is easy to reflect light, so that the user cannot clearly watch the display screen.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a multi-angle adjustable small-spacing display screen based on the Internet of things, which solves the problems that a user cannot conveniently adjust the angle of the display screen, the surface of the display screen is accumulated with dust, and the display screen cannot be seen cleanly and hygienically, and also solves the problem that the surface of the display screen is easy to reflect light when the user watches the display screen, so that the user cannot clearly watch the display screen.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a multi-angle adjustable small-spacing display screen based on the Internet of things comprises a display screen box body, wherein an LED display screen is embedded in the display screen box body, the LED display screen is fixedly connected with the display screen box body, the rear surface of the display screen box body is fixedly connected with a shell, the rear surface of the shell is fixedly connected with a plurality of cylinders, the inner side wall of each cylinder is in rolling connection with a first sphere, the rear end of the first sphere is fixedly connected with a supporting rod, a connecting ring penetrates through the outer part of the supporting rod and is fixedly connected with the supporting rod, the rear ends of a plurality of supporting rods are fixedly connected with a long plate, mounting blocks are fixedly connected with four corners of the rear surface of the long plate, first slide rails are arranged on the left side and the right side of the display screen box body, the inner parts of the first slide rails are in rolling connection with a second sphere, and a short rod is fixedly connected with one, the utility model discloses a dust extraction box, including spheroid, quarter butt, connecting plate, second slide rail, the quarter butt is kept away from one side fixedly connected with connecting plate of spheroid No. two, the front surface paste of connecting plate is fixed with the second slide rail, the quantity of second slide rail is totally two, two the relative slider that is connected with that sideslips of second slide rail, two fixedly connected with dust extraction box between the slider.
Preferably, the both sides of display screen box body are close to two fixed blocks of the equal fixedly connected with in rear of first slide rail, two rotate between the fixed block and be connected with a long section of thick bamboo, the lateral wall of a long section of thick bamboo is pasted and is fixed with the baffle.
Preferably, the rear surface of the dust suction device box is fixedly connected with a rubber strip, and the rubber strip is attached to the front surface of the LED display screen.
Preferably, the number of the cylinders is four, and the four cylinders are distributed at four corners of the rear surface of the housing.
Preferably, the baffle is made of plastic, and the length of the baffle is equal to the width of the LED display screen.
Preferably, both sides of the second slide rail are provided with side plates, and the side plates are fixedly connected with the second slide rail.
Preferably, the first sphere and the second sphere are the same in shape and different in size.
Preferably, the dust suction device box is located in front of the LED display screen and is in sliding connection with the LED display screen.
Preferably, the rear surface of the display screen box body is close to the outer part of the shell body and is provided with a square frame, and the square frame is fixedly connected with the display screen box body.
Preferably, the rear surface of the shell is provided with a plurality of heat dissipation holes.
(III) advantageous effects
The invention provides a multi-angle adjustable small-space display screen based on the Internet of things, which has the following beneficial effects:
(1) according to the invention, the plurality of cylinders are arranged on the rear surface of the shell, the first sphere is mounted in each cylinder, the supporting rod is fixed on the rear surface of the first sphere, the connecting ring penetrates through the outer part of the supporting rod, the cylinders and the supporting rods are fixed together through the connecting ring, and the first sphere can roll in the cylinders at will, so that a user can hold the display screen to move up and down or move left and right to adjust the angle of the display screen, and the device is flexible and convenient to operate.
(2) In the invention, the two sides of the display screen box body are provided with the first slide rails, the first slide rails are connected with the second sphere which can slide up and down in the first slide rails and also can rotate in the first slide rails, a connecting plate is fixed on one side of the second sphere through a short rod, a second slide rail is arranged on the front surface of the connecting plate, a dust suction device box is arranged between the two second sliding rails, a dust suction element is contained in the dust suction device box, the dust suction principle is the same as that of a dust collector, the dust suction device box can slide up and down in front of the display screen to be beneficial to cleaning dust on the display screen, the two sides of the dust collection device box are provided with the sliding blocks, the sliding blocks are embedded with the second sliding rail, so that the dust collection device box can slide on the second sliding rail, the display screen can be kept away from the dust collection device box, the dust collection device box can be rotated to the rear surface of the display screen, and the influence on watching is avoided.
(3) According to the LED display screen, the two fixing blocks are arranged on the two sides of the display screen box body, the long cylinder is arranged between the two fixing blocks in a rotating mode, the baffle is arranged on the outer side wall of the long cylinder, the LED display screen can be shielded by the baffle, sunlight can be prevented from being directly irradiated on the LED display screen, pictures on the display screen can be clear, and the use is facilitated.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of a right-view structure of the present invention;
FIG. 3 is a schematic view of the internal structure of the cylinder of FIG. 2 according to the present invention;
FIG. 4 is an enlarged view of the structure at A in the present invention;
FIG. 5 is an enlarged view of the structure at B in the present invention;
fig. 6 is a left side view of the first slide rail and the second ball of fig. 2 according to the present invention.
In the figure: 1. a dust extraction box; 2. an LED display screen; 3. a baffle plate; 4. a display screen box body; 5. a square frame; 6. a first slide rail; 7. a housing; 8. a cylinder; 9. a connecting ring; 10. a support bar; 11. heat dissipation holes; 12. a long plate; 13. mounting blocks; 14. a first sphere; 15. a fixed block; 16. a slider; 17. a long cylinder; 18. a second slide rail; 19. a side plate; 20. a rubber strip; 21. a connecting plate; 22. a sphere II; 23. a short rod.
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.
As shown in fig. 1 to 6, the present invention provides a technical solution: a multi-angle adjustable small-spacing display screen based on the Internet of things comprises a display screen box body 4, an LED display screen 2 is embedded in the display screen box body 4, the LED display screen 2 is fixedly connected with the display screen box body 4, a shell 7 is fixedly connected to the rear surface of the display screen box body 4, a plurality of cylinders 8 are fixedly connected to the rear surface of the shell 7, a first sphere 14 is connected to the inner side wall of each cylinder 8 in a rolling mode, a support rod 10 is fixedly connected to the rear end of the first sphere 14, a connecting ring 9 penetrates through the outer portion of the support rod 10, the connecting ring 9 is fixedly connected with the support rod 10, a long plate 12 is fixedly connected to the rear ends of the support rods 10, mounting blocks 13 are fixedly connected to four corners of the rear surface of the long plate 12, first slide rails 6 are arranged on the left side and the right side of the display screen box body 4, a second sphere 22 is connected to the inner portion of the, one side fixedly connected with connecting plate 21 that spheroid No. two 22 was kept away from to quarter butt 23, the front surface paste of connecting plate 21 is fixed with second slide rail 18, the quantity of second slide rail 18 is totally two, the relative side-slip of two second slide rails 18 is connected with slider 16, dust extraction box 1 of fixedly connected with between two sliders 16, the diameter of spheroid No. 14 is greater than the length of drum 8, drum 8 can rotate on spheroid No. 14, the user need apply certain power just can when drum 8 rotates, at angle regulation, after the release force, the display screen can not flagging, do benefit to the angle use of adjusting the display screen, dust extraction box 1 can rotate the rear surface of display screen box body 4, thus, can avoid causing the influence to watching, the booth apart from the display screen before the use, need the networking.
Further, two fixing blocks 15 are fixedly connected to the two sides of the display screen box body 4 close to the rear portion of the first sliding rail 6, a long cylinder 17 is connected between the two fixing blocks 15 in a rotating mode, the baffle 3 is fixedly attached to the outer side wall of the long cylinder 17, the number of the baffle 3 is two, and the baffle 3 can shade the LED display screen 2.
Further, the rear surface of dust extraction box 1 is fixedly connected with rubber strip 20, and rubber strip 20 laminates at the front surface of LED display screen 2, and rubber strip 20 is back font, and rubber strip 20 can avoid the scratch that dust extraction box 1 direct contact LED display screen 2 caused.
Further, the number of the cylinders 8 is four, the four cylinders 8 are distributed at four corners of the rear surface of the shell 7, a first sphere 14 is installed in each cylinder 8, and each cylinder 8 can rotate on the first sphere 14, so that the angle of the LED display screen 2 can be adjusted conveniently.
Further, baffle 3 is the plastics material, and the length of baffle 3 equals the width of LED display screen 2, and baffle 3 can shelter from sunshine, and baffle 3 can rotate to one side when not using.
Furthermore, both sides of the second slide rail 18 are provided with side plates 19, the side plates 19 are fixedly connected with the second slide rail 18, and the side plates 19 can prevent the sliding block 16 from sliding out of the second slide rail 18, so that the safety of the device is improved.
Further, the first sphere 14 and the second sphere 22 have the same shape and different sizes, the first sphere 14 can freely roll in the cylinder 8, and the second sphere 22 can slide or rotate in the first slide rail 6.
Further, dust extraction box 1 is located the place ahead of LED display screen 2, and with LED display screen 2 sliding connection, contains the dust absorption component in the dust extraction box 1, and the dust absorption principle of dust extraction box 1 is the same with the small-size dust catcher principle on the market, can be with the dust clean up on the LED display screen 2.
Furthermore, the square frame 5 is arranged on the outer portion, close to the shell 7, of the rear surface of the display screen box body 4, the square frame 5 is fixedly connected with the display screen box body 4, the square frame 5 plays a role in shielding, the shell 7 is wrapped in the square frame 5, the cylinder 8 and the connecting ring 9 can hide parts in the square frame 5, and therefore the device is attractive in appearance and not in a mess.
Furthermore, a plurality of heat dissipation holes 11 are formed in the rear surface of the housing 7, and the heat dissipation holes 11 are beneficial to heat dissipation of elements inside the housing 7, so that the service life of the device can be prolonged.
In conclusion, the working process of the invention is as follows: the device is arranged on the wall surface through the mounting block 13, when the small-space display screen angle is adjusted, the LED display screen 2 can be held to be pulled up and down or pulled left and right, the angle adjustment is convenient, when dust on the LED display screen 2 is cleaned, the dust suction device box 1 can be rotated to the front of the LED display screen 2, the dust suction device box 1 is pushed, thus, a rubber strip 20 on the dust suction device box 1 can be attached to the LED display screen 2, a user holds the dust suction device box 1 to slide downwards and cannot clean the dust on the display screen, after cleaning, the dust suction device box 1 can be slid upwards, then the dust suction device box 1 is pulled, then the dust suction device box 1 is rotated to the rear of the display screen box body 4, so that the normal use of the shading device cannot be influenced, when the small-space display screen is watched, the baffle 3 can be rotated, the baffle 3 can be used for the LED display screen 2, the picture on the display screen can be made clear.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
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 (10)
1. The utility model provides a booth apart from display screen with adjustable multi-angle based on thing networking, includes display screen box body (4), its characterized in that: the LED display screen is characterized in that an LED display screen (2) is embedded in the display screen box body (4), the LED display screen (2) is fixedly connected with the display screen box body (4), the rear surface of the display screen box body (4) is fixedly connected with a shell (7), the rear surface of the shell (7) is fixedly connected with a plurality of cylinders (8), the inner side wall of each cylinder (8) is in rolling connection with a first sphere (14), the rear end of the first sphere (14) is fixedly connected with a support rod (10), a connecting ring (9) penetrates through the outer part of the support rod (10), the connecting ring (9) is fixedly connected with the support rod (10), a plurality of long plates (12) are fixedly connected with the rear ends of the support rods (10), four corners of the rear surface of each long plate (12) are fixedly connected with mounting blocks (13), first sliding rails (6) are arranged on the left side and the right side of the display screen box body (4, the inside roll connection of first slide rail (6) has the spheroid No. two (22), one side fixedly connected with quarter butt (23) of No. two (22) of spheroid, quarter butt (23) are kept away from one side fixedly connected with connecting plate (21) of No. two (22) of spheroid, the front surface paste of connecting plate (21) is fixed with second slide rail (18), the quantity of second slide rail (18) is totally two, two the opposite side sliding connection of second slide rail (18) has slider (16), two fixedly connected with dust extraction box (1) between slider (16).
2. The multi-angle adjustable small-space display screen based on the Internet of things as claimed in claim 1, wherein: the both sides of display screen box body (4) are close to two fixed blocks (15) of the equal fixedly connected with in rear of first slide rail (6), two it is connected with long section of thick bamboo (17) to rotate between fixed block (15), the lateral wall of a long section of thick bamboo (17) is pasted and is fixed with baffle (3).
3. The multi-angle adjustable small-space display screen based on the Internet of things as claimed in claim 1, wherein: the rear surface fixed connection of dust extraction box (1) has rubber strip (20), rubber strip (20) laminating is in the front surface of LED display screen (2).
4. The multi-angle adjustable small-space display screen based on the Internet of things as claimed in claim 1, wherein: the number of the cylinders (8) is four, and the four cylinders (8) are distributed at four corners of the rear surface of the shell (7).
5. The multi-angle adjustable small-space display screen based on the Internet of things as claimed in claim 2, wherein: the baffle (3) is made of plastic, and the length of the baffle (3) is equal to the width of the LED display screen (2).
6. The multi-angle adjustable small-space display screen based on the Internet of things as claimed in claim 1, wherein: and side plates (19) are arranged on two sides of the second sliding rail (18), and the side plates (19) are fixedly connected with the second sliding rail (18).
7. The multi-angle adjustable small-space display screen based on the Internet of things as claimed in claim 1, wherein: the first sphere (14) and the second sphere (22) are the same in shape and different in size.
8. The multi-angle adjustable small-space display screen based on the Internet of things as claimed in claim 1, wherein: the dust collection device box (1) is located in front of the LED display screen (2) and is connected with the LED display screen (2) in a sliding mode.
9. The multi-angle adjustable small-space display screen based on the Internet of things as claimed in claim 1, wherein: the rear surface of the display screen box body (4) is close to the outer portion of the shell (7) and is provided with a square frame (5), and the square frame (5) is fixedly connected with the display screen box body (4).
10. The multi-angle adjustable small-space display screen based on the Internet of things as claimed in claim 1, wherein: the rear surface of the shell (7) is provided with a plurality of heat dissipation holes (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910789771.6A CN110503897B (en) | 2019-08-26 | 2019-08-26 | Multi-angle adjustable small-space display screen based on Internet of things |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910789771.6A CN110503897B (en) | 2019-08-26 | 2019-08-26 | Multi-angle adjustable small-space display screen based on Internet of things |
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| CN110503897A CN110503897A (en) | 2019-11-26 |
| CN110503897B true CN110503897B (en) | 2021-06-18 |
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| CN206931349U (en) * | 2017-06-28 | 2018-01-26 | 湖北工程学院 | Advertisement nameplate and advertisement nameplate component |
| CN207830928U (en) * | 2017-09-01 | 2018-09-07 | 天津锐思科技有限公司 | A kind of electronic information multi-angle adjustment display board backboard |
| CN207690289U (en) * | 2017-12-22 | 2018-08-03 | 山西禾源科技股份有限公司 | A kind of highway section Intelligent Dynamic wagon flow vehicle-speed monitoring system display device |
| CN208027704U (en) * | 2018-03-06 | 2018-10-30 | 铜仁职业技术学院 | A kind of history culture panel |
| CN208457496U (en) * | 2018-05-03 | 2019-02-01 | 天津东方信达科技有限公司 | A kind of safety precaution monitoring management system display |
| CN208804436U (en) * | 2018-08-13 | 2019-04-30 | 深圳埃维司电子科技有限公司 | It is a kind of can be with the liquid crystal display of multi-angle regulation |
| CN208906716U (en) * | 2018-09-03 | 2019-05-28 | 深圳市鑫帆宇电子科技有限公司 | A kind of adaptive screen intensity Vehicular display device |
| CN208737852U (en) * | 2018-09-17 | 2019-04-12 | 绍兴天启文化创意有限公司 | A kind of elevator card board of adjustable position |
| CN109256062A (en) * | 2018-10-31 | 2019-01-22 | 邵稚超 | A kind of outdoor billboard that can be cleared up automatically |
| CN209278782U (en) * | 2018-12-12 | 2019-08-20 | 漳州市传正光电科技有限公司 | A kind of multi-angle adjustable just adjusts LED display |
| CN209199492U (en) * | 2018-12-26 | 2019-08-02 | 广州码神信息科技有限公司 | A kind of highway electronic information display screen |
| CN209216183U (en) * | 2019-01-25 | 2019-08-06 | 盐城旷盈信息科技有限公司 | One kind being based on binocular In vivo detection recognition access control system |
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| CN110503897A (en) | 2019-11-26 |
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