CN113539128A - Open-air electronic display screen with safeguard function - Google Patents
Open-air electronic display screen with safeguard function Download PDFInfo
- Publication number
- CN113539128A CN113539128A CN202110787789.XA CN202110787789A CN113539128A CN 113539128 A CN113539128 A CN 113539128A CN 202110787789 A CN202110787789 A CN 202110787789A CN 113539128 A CN113539128 A CN 113539128A
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- supporting block
- spring
- supporting
- display screen
- sides
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- 239000011521 glass Substances 0.000 claims abstract description 14
- 230000008878 coupling Effects 0.000 claims abstract description 12
- 238000010168 coupling process Methods 0.000 claims abstract description 12
- 238000005859 coupling reaction Methods 0.000 claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims description 42
- 239000000463 material Substances 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 abstract description 6
- 239000012459 cleaning agent Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
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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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- 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
- B08B1/12—Brushes
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- 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
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
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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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention relates to an electronic display screen, in particular to an open-air electronic display screen with a protection function. The outdoor electronic display screen with the protection function is mainly used for preventing the electronic screen from being damaged due to cleaning. An open-air electronic display screen with protection function, including: first backup pad, movable pulley, telescopic link and braced frame, the equal rigid coupling in first backup pad bottom both sides has the movable pulley, and first backup pad top symmetry is equipped with the telescopic link, is connected with braced frame between the telescopic link top. Put into braced frame with the display screen in, the content of broadcast alright demonstrate through the transparent glass board, realize basic function, the accessible starts rodless cylinder simultaneously and drives the brush and reciprocate to wash the transparent glass board, cooperates more comfortable clear watching sense.
Description
Technical Field
The invention relates to an electronic display screen, in particular to an open-air electronic display screen with a protection function.
Background
Electronic display screens, namely LED screens, are widely applied at present, are used for issuing messages in various places, and people can clearly know the issued information through visual experience.
Most of the existing outdoor display screens are fixed on the support through bolts, the support is fixed on the ground and is not suitable for being used in more occasions, meanwhile, the display screens can be covered with one layer of dust due to the influence of factors such as outdoor environment on the screens in the using process, if the display screens are not cleared in time, the using effect of the display screens can be influenced, the common cleaning mode is that the screens are cleaned by using hairbrushes manually, the labor amount is large, the working efficiency is low, the screens can be damaged carelessly, and the investment cost is increased.
Therefore, it is necessary to design an outdoor electronic display screen with a protection function to prevent the electronic screen from being damaged due to cleaning.
Disclosure of Invention
In order to overcome the defects that the screen cleaning work of the existing outdoor display screen is generally manually cleaned and the screen is damaged by carelessness, the technical problems to be solved are as follows: the outdoor electronic display screen with the protection function can prevent the electronic screen from being damaged due to cleaning.
The technical scheme is as follows: the utility model provides an open-air electronic display screen with safeguard function, including first backup pad, the movable pulley, the telescopic link, braced frame, the second backup pad, stop gear and wiping mechanism, the equal rigid coupling in first backup pad bottom both sides has the movable pulley, first backup pad top symmetry is equipped with the telescopic link, be connected with braced frame between the telescopic link top, braced frame one side rigid coupling has the clear glass board, braced frame top rigid coupling has the second backup pad, the braced frame lower part is equipped with stop gear, braced frame one side is equipped with wiping mechanism.
Furthermore, stop gear is including first supporting block, first baffle and first spring, and the equal rigid coupling in braced frame bottom both sides has first supporting block, and the equal slidingtype in first supporting block outside is equipped with first baffle, first baffle all with first supporting block between the symmetrical connection have first spring.
Further, wiping mechanism is including second supporting shoe, rodless cylinder, support frame and brush, and the equal symmetry in braced frame both sides is equipped with the second supporting shoe, all is connected with rodless cylinder between the second supporting shoe of vertical homonymy, is connected with the support frame between the rodless cylinder, and support frame one side is equipped with the brush.
Further, still including artifical unloading mechanism, artifical unloading mechanism is including material loading frame, third supporting shoe, door closure and second spring, and second backup pad top rigid coupling has the material loading frame, and the symmetry is equipped with the third supporting shoe on the material loading frame, and the rotary type is connected with the door closure between the third supporting shoe, all is connected with the second spring between door closure and the third supporting shoe inner wall both sides.
Further, still including protection machanism, protection machanism all is equipped with the sixth supporting shoe including sixth supporting shoe, third baffle, torque spring and fixture block, the frame both sides of feeding, and the rotary type is connected with the third baffle between the sixth supporting shoe, and third baffle both sides all are connected with torque spring with between the sixth supporting shoe, and braced frame upper portion both sides all slidingtype is equipped with the fixture block.
Further, still including automatic unloading mechanism, automatic unloading mechanism is including pressing the clamp plate, the fourth supporting shoe, the second baffle, the third spring, the fifth supporting shoe, commentaries on classics board and fourth spring, the equal rigid coupling in support frame both sides has the press plate, the equal rigid coupling in second backup pad both sides has the fourth supporting shoe, sliding type connection has the second baffle between the fourth supporting shoe, second baffle bottom all with be connected with the third spring between the fourth supporting shoe, the frame both sides of feeding all are equipped with the fifth supporting shoe, the equal rotary type in fifth supporting shoe lower part is equipped with the commentaries on classics board, change the board both sides all with be connected with the fourth spring between the fifth supporting shoe.
Further, the telescopic rod fixing device comprises a fixing mechanism, the fixing mechanism comprises a seventh supporting block, a fixing block and a fifth spring, the seventh supporting block is arranged in the middle of the fixing end of the telescopic rod, the fixing blocks are symmetrically and slidably arranged on the seventh supporting block, and the fifth spring is connected between the fixing block and the bottoms of the seventh supporting blocks on the same side.
Further, the brush is detachable.
The beneficial effects are that: 1. the display screen is placed in the supporting frame, played contents can be displayed through the transparent glass plate, basic functions are achieved, meanwhile, the rodless cylinder is started to drive the brush to move up and down to clean the transparent glass plate, and the transparent glass plate is more comfortable and clear in watching;
2. the sliding wheels are used for driving the equipment to move randomly, outdoor playing on multiple occasions is matched, and meanwhile, the first baffle plate can prevent the display screen from sliding out in the moving process to cause damage to the display screen;
3. when the brush moves up and down, the cleaning agent can be driven to automatically flow out, and cleaner cleaning is matched;
4. the fixed block supports ground and can fix equipment, prevents that the equipment from taking place to empty and lead to the display screen roll-off breakage when the equipment is touched to the human body carelessly.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of the limiting mechanism of the present invention.
Fig. 3 is a schematic perspective view of the wiping mechanism of the present invention.
Fig. 4 is a schematic perspective view of the blanking mechanism of the present invention.
Fig. 5 is a schematic perspective view of the automatic blanking mechanism of the present invention.
Fig. 6 is a schematic perspective view of the protection mechanism of the present invention.
Fig. 7 is a schematic perspective view of the fixing mechanism of the present invention.
Part names and serial numbers in the figure: 1_ first supporting plate, 2_ sliding wheel, 3_ telescopic rod, 4_ supporting frame, 5_ second supporting plate, 6_ limiting mechanism, 61_ first supporting block, 62_ first baffle, 63_ first spring, 7_ wiping mechanism, 71_ second supporting block, 72_ rodless cylinder, 73_ supporting frame, 74_ brush, 8_ manual blanking mechanism, 81_ charging frame, 82_ third supporting block, 83_ door cover, 84_ second spring, 9_ automatic blanking mechanism, 91_ pressing plate, 92_ fourth supporting block, 93_ second baffle, 94_ third spring, 95_ fifth supporting block, 96_ rotating plate, 97_ fourth spring, 10_ protection mechanism, 101_ sixth supporting block, 102_ third baffle, 103_ torsion spring, 104_ clamping block, 11_ fixing mechanism, 111_ seventh supporting block, 112_ 113_ fifth spring fixing block.
Detailed Description
The technical scheme of the invention is further explained by combining the attached drawings.
Example 1
The utility model provides an open-air electronic display screen with safeguard function, as shown in fig. 1 to 3, including first backup pad 1, movable pulley 2, telescopic link 3, braced frame 4, second backup pad 5, stop gear 6 and wiping mechanism 7, the 1 bottom left and right sides of first backup pad all is equipped with movable pulley 2, 1 top bilateral symmetry of first backup pad is equipped with telescopic link 3, be connected with braced frame 4 between 3 tops of telescopic link, braced frame 4 front side is equipped with the clear glass board, braced frame 4 top is equipped with second backup pad 5, braced frame 4 lower part is equipped with stop gear 6, braced frame 4 front side is equipped with wiping mechanism 7.
Stop gear 6 is including first supporting block 61, first baffle 62 and first spring 63, and the braced frame 4 bottom left and right sides all is equipped with first supporting block 61, and the equal slidingtype first baffle 62 that is equipped with in the first supporting block 61 outside, first baffle 62 all with first supporting block 61 between the front and back symmetrical connection have first spring 63.
The wiping mechanism 7 comprises second supporting blocks 71, rodless cylinders 72, supporting frames 73 and brushes 74, the second supporting blocks 71 are symmetrically arranged on the left side and the right side of the front side of the supporting frame 4 from top to bottom, the rodless cylinders 72 are connected between the second supporting blocks 71 on the same vertical side, the supporting frames 73 are connected between the rodless cylinders 72, and the brushes 74 are arranged on the rear sides of the supporting frames 73.
The user can firstly adjust the telescopic rod 3 according to the required display height, manually push the telescopic end of the telescopic rod 3 to move upwards, so as to drive the supporting frame 4 to move upwards, after the adjustment is finished, the telescopic rod 3 is stopped to be pushed, the telescopic end of the telescopic rod 3 is clamped by using an auxiliary tool, so as to fix the height after the adjustment is finished, then the display screen is pushed into the supporting frame 4 through any one side of the supporting frame 4, the first baffle plate 62 at one side moves downwards under the stress to drive the first spring 63 to be compressed, the placing is finished, the first baffle plate 62 is not stressed any more, the first spring 63 resets to drive the first baffle plate 62 to move upwards to limit the display screen, so that when the operator pushes the supporting frame 4 to move by the sliding wheel 2, the display screen can be prevented from sliding out, the user can start the display screen to operate and play through the transparent glass plate, when the transparent glass plate is stained with dust to influence the play effect, starting rodless cylinder 72, rodless cylinder 72 operates and drives brush 74 through support frame 73 and reciprocating up and down alright wash the transparent glass board, and the user can spout the cleaner of a certain amount to the transparent glass board during, cooperates cleaner washing, and the washing finishes, stops rodless cylinder 72 to operate can, use to certain term when brush 74, take off the brush and change can.
Example 2
On the basis of embodiment 1, as shown in fig. 1, 4, 5 and 6, the automatic blanking device further comprises an artificial blanking mechanism 8, the artificial blanking mechanism 8 comprises a charging frame 81, a third supporting block 82, a door cover 83 and a second spring 84, the charging frame 81 is arranged at the top of the second supporting plate 5, the third supporting block 82 is symmetrically arranged at the rear side of the charging frame 81, the door cover 83 is rotatably connected between the third supporting blocks 82, and the second spring 84 is connected between the door cover 83 and the left side and the right side of the inner wall of the third supporting block 82.
Still including protection machanism 10, protection machanism 10 is including sixth supporting shoe 101, third baffle 102, torsion spring 103 and fixture block 104, and the frame 81 left and right sides of feeding all is equipped with sixth supporting shoe 101, and the rotary type is connected with third baffle 102 between the sixth supporting shoe 101, and the third baffle 102 left and right sides all is connected with torsion spring 103 with between the sixth supporting shoe 101, and the equal slidingtype in upper portion left and right sides of braced frame 4 is equipped with fixture block 104.
Still including automatic unloading mechanism 9, automatic unloading mechanism 9 is including pressing the clamp plate 91, fourth supporting shoe 92, second baffle 93, third spring 94, fifth supporting shoe 95, change board 96 and fourth spring 97, the support frame 73 all is equipped with pressing the clamp plate 91 in the both sides about, the 5 left and right sides of second backup pad all are equipped with fourth supporting shoe 92, sliding connection has second baffle 93 between the fourth supporting shoe 92, second baffle 93 bottom all with the fourth supporting shoe 92 between be connected with third spring 94, the dress frame 81 left and right sides all is equipped with fifth supporting shoe 95, the equal rotary type in fifth supporting shoe 95 lower part is equipped with changes board 96, change the board 96 left and right sides all with be connected with fourth spring 97 between the fifth supporting shoe 95.
The material loading frame 81 is internally provided with a proper amount of cleaning agent, the rotating plate 96 is abutted against the second baffle plate 93 in an initial state, the third spring 94 is compressed, the second baffle plate 93 blocks a feed opening at the bottom of the material loading frame 81, the cleaning agent cannot flow out, when a transparent glass plate needs to be cleaned, the support frame 73 moves downwards to drive the pressing plate 91 to move downwards to extrude the rotating plate 96 to rotate, the fourth spring 97 deforms, the rotating plate 96 does not abut against the second baffle plate 93 any more, the third spring 94 resets to drive the second baffle plate 93 to move upwards and not block the feed opening any more, the cleaning agent can automatically flow downwards to the front side of the transparent glass plate through the feed opening to be cleaned in a matching way, when the pressing plate 91 moves downwards to no longer extrude the rotating plate 96 to rotate, the fourth spring 97 resets to drive the rotating plate 96 to rotate and reset, and then the second baffle plate 93 is extruded to move downwards to block the feed opening, the cleaning agent stops flowing out, the third spring 94 is compressed, when the supporting frame 73 moves upwards, the rotating plate 96 can be manually pushed to rotate to be in a vertical state and the second baffle 93 is controlled not to move, the pressing plate 91 is moved upwards to reset, the rotating plate 96 is stopped to be pushed, and the rotating plate 96 can rotate to reset under the action of the fourth spring 97; initial state third baffle 102 is parallel with braced frame 4, torsion spring 103 takes place deformation, the user can promote fixture block 104 and remove to the outside and no longer block third baffle 102, torsion spring 103 resets and drives third baffle 102 and rotate 90 formation shade backward, so alright shelter from rainwater or sunshine, make people can hide temporarily in third baffle 102 below, play the effect of protection to people, use finishes, promote third baffle 102 and rotate braced frame 4 parallel, torsion spring 103 takes place deformation, promote fixture block 104 to move to the inside and block third baffle 102 and can pack up it afterwards.
Example 3
On the basis of embodiment 2, as shown in fig. 1 and 7, the telescopic rod further includes a fixing mechanism 11, the fixing mechanism 11 includes seventh supporting blocks 111, fixing blocks 112 and fifth springs 113, the seventh supporting blocks 111 are respectively disposed in the middle of the fixing ends of the telescopic rods 3, the fixing blocks 112 are symmetrically disposed in the front and rear direction of the seventh supporting blocks 111, and the fifth springs 113 are respectively connected between the fixing blocks 112 and the bottoms of the seventh supporting blocks 111 on the same side.
When the equipment needs to be moved, the fixing block 112 is pushed to move upwards to drive the fifth spring 113 to be compressed, after the movement is finished, the fixing block 112 is stopped to be pushed, the fifth spring 113 resets to drive the fixing block 112 to move downwards to abut against the ground, and therefore the telescopic rod 3 and the parts above can be fixed through the fixing block 112.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. The utility model provides an open-air electronic display screen with safeguard function which characterized in that, including: first backup pad (1), movable pulley (2), telescopic link (3), braced frame (4), second backup pad (5), stop gear (6) and clean mechanism (7), the equal rigid coupling in first backup pad (1) bottom both sides has movable pulley (2), first backup pad (1) top symmetry is equipped with telescopic link (3), be connected with braced frame (4) between telescopic link (3) top, braced frame (4) one side rigid coupling has the clear glass board, braced frame (4) top rigid coupling has second backup pad (5), braced frame (4) lower part is equipped with stop gear (6), braced frame (4) one side is equipped with cleans mechanism (7).
2. The outdoor electronic display screen with the protection function according to claim 1, wherein the limiting mechanism (6) comprises: first supporting block (61), first baffle (62) and first spring (63), the equal rigid coupling in braced frame (4) bottom both sides has first supporting block (61), and first supporting block (61) outside all is equipped with first baffle (62) slidingtype, first baffle (62) all with first supporting block (61) between the symmetrical connection have first spring (63).
3. An open-air electronic display with protection according to claim 2, characterized in that the wiping mechanism (7) comprises: the novel support frame is characterized by comprising second support blocks (71), rodless cylinders (72), support frames (73) and brushes (74), wherein the second support blocks (71) are symmetrically arranged on two sides of the support frame (4), the rodless cylinders (72) are connected between the second support blocks (71) on the same vertical side, the support frames (73) are connected between the rodless cylinders (72), and the brushes (74) are arranged on one sides of the support frames (73).
4. The outdoor electronic display screen with the protection function according to claim 3, further comprising an artificial blanking mechanism (8), wherein the artificial blanking mechanism (8) comprises: the loading frame (81), the third supporting block (82), the door cover (83) and the second spring (84), the loading frame (81) is fixedly connected to the top of the second supporting plate (5), the third supporting block (82) is symmetrically arranged on the loading frame (81), the door cover (83) is rotatably connected between the third supporting blocks (82), and the second spring (84) is connected between the door cover (83) and the two sides of the inner wall of the third supporting block (82).
5. The outdoor electronic display screen with the protection function according to claim 4, further comprising a protection mechanism (10), wherein the protection mechanism (10) comprises: sixth supporting blocks (101), third baffle (102), torsion spring (103) and fixture block (104), material loading frame (81) both sides all are equipped with sixth supporting block (101), and the rotary type is connected with third baffle (102) between sixth supporting block (101), is connected with torsion spring (103) between third baffle (102) both sides and sixth supporting block (101), and braced frame (4) upper portion both sides all are equipped with fixture block (104) with sliding type.
6. The outdoor electronic display screen with the protection function according to claim 5, further comprising an automatic blanking mechanism (9), wherein the automatic blanking mechanism (9) comprises: according to the technical scheme, the material loading device comprises a pressing plate (91), a fourth supporting block (92), a second baffle plate (93), a third spring (94), a fifth supporting block (95), a rotating plate (96) and a fourth spring (97), the pressing plate (91) is fixedly connected to two sides of a supporting frame (73), the fourth supporting block (92) is fixedly connected to two sides of a second supporting plate (5), the second baffle plate (93) is slidably connected between the fourth supporting block (92), the third spring (94) is connected between the bottom of the second baffle plate (93) and the fourth supporting block (92), the fifth supporting block (95) is arranged on two sides of a loading frame (81), the rotating plate (96) is arranged on the lower portion of the fifth supporting block in an equal rotating mode, and the fourth spring (97) is connected between two sides of the rotating plate (96) and the fifth supporting block (95).
7. The outdoor electronic display screen with protection function according to claim 6, further comprising a fixing mechanism (11), wherein the fixing mechanism (11) comprises: the telescopic rod is characterized by comprising a seventh supporting block (111), a fixed block (112) and a fifth spring (113), wherein the seventh supporting block (111) is arranged in the middle of the fixed end of the telescopic rod (3), the fixed blocks (112) are symmetrically and slidably arranged on the seventh supporting block (111), and the fifth spring (113) is connected between the fixed blocks (112) and the bottoms of the seventh supporting blocks (111) on the same side.
8. The outdoor electronic display screen with the protection function according to claim 7, wherein the brush (74) is detachably arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110787789.XA CN113539128B (en) | 2021-07-13 | 2021-07-13 | Open-air electronic display screen with safeguard function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110787789.XA CN113539128B (en) | 2021-07-13 | 2021-07-13 | Open-air electronic display screen with safeguard function |
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| Publication Number | Publication Date |
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| CN113539128A true CN113539128A (en) | 2021-10-22 |
| CN113539128B CN113539128B (en) | 2022-11-18 |
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| CN202110787789.XA Active CN113539128B (en) | 2021-07-13 | 2021-07-13 | Open-air electronic display screen with safeguard function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113857103A (en) * | 2021-11-11 | 2021-12-31 | 陈尚妹 | Liquid crystal display surface cleaning dust collecting equipment |
| CN114887946A (en) * | 2022-05-25 | 2022-08-12 | 洪小聪 | Cleaning device used before liquid crystal display screen leaves factory |
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| CN112908190A (en) * | 2019-11-19 | 2021-06-04 | 天津福恩新能源科技有限责任公司 | Solar outdoor advertising device |
| CN210955927U (en) * | 2019-12-16 | 2020-07-07 | 苏州红布李光电有限公司 | LED box |
| CN111828805A (en) * | 2020-04-22 | 2020-10-27 | 国网天津市电力公司 | Liftable display equipment for mobile display screen |
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| CN113066404A (en) * | 2021-03-19 | 2021-07-02 | 吴志基 | Legal consultation publicity column capable of being played circularly |
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| CN114887946A (en) * | 2022-05-25 | 2022-08-12 | 洪小聪 | Cleaning device used before liquid crystal display screen leaves factory |
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