CN214744294U - Rotary mechanism of LED large screen - Google Patents
Rotary mechanism of LED large screen Download PDFInfo
- Publication number
- CN214744294U CN214744294U CN202120081999.2U CN202120081999U CN214744294U CN 214744294 U CN214744294 U CN 214744294U CN 202120081999 U CN202120081999 U CN 202120081999U CN 214744294 U CN214744294 U CN 214744294U
- Authority
- CN
- China
- Prior art keywords
- led
- fixed
- box body
- motor
- intermittent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 65
- 230000007306 turnover Effects 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims description 19
- 230000009471 action Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 15
- 230000006872 improvement Effects 0.000 abstract description 5
- 244000027321 Lychnis chalcedonica Species 0.000 abstract description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 239000003086 colorant Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Images
Landscapes
- Displays For Variable Information Using Movable Means (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The utility model provides a rotary mechanism of a large LED screen, which belongs to the technical field of large LED screens, and comprises a box body, wherein an intermittent turnover mechanism is arranged in the box body, the intermittent turnover mechanism is respectively connected with three LED screens through three connecting shafts, each LED screen is designed into a three-sided LED screen, and a triangle formed by the three sides is an equilateral triangle, the turnover mechanism comprises a motor, a driving wheel, an inner sunken groove, a bulge, a guide pin, a driven wheel, a supporting shaft, an inner groove, a guide groove and a supporting plate, the motor is arranged on the lower inner wall of the box body, the driving wheel is fixed on the output end of the motor, the whole rotary mechanism is reasonable in structure and ingenious in conception, the rotation of the three LED screens is set into slow intermittent rotation through the improvement of a maltese cross wheel mechanism, namely a plane groove wheel mechanism, and the angle of each rotation is one hundred twenty degrees, so that the three LED screens form a plane, form a LED large-size screen and provide the show, the bandwagon effect is good, and intermittent type time supplies people to watch, and the practicality is strong.
Description
Technical Field
The utility model belongs to the technical field of the big screen of LED, concretely relates to rotary mechanism of big screen of LED.
Background
The LED display screen is a flat panel display, comprises LED module panels that are small one by one, is used for showing the equipment of various information such as characters, image, video, record video signal, and the suitability is strong, and the color is abundant: the electronic screen consists of a three-primary-color (red, green and blue) display unit box body, and 256 gray levels of red, green and blue form 16777216 colors, so that the electronic screen can display dynamic images with rich colors, high saturation, high resolution and high display frequency; the application range is as follows: government, leisure, commercial and trade centers, advertising information placards, commercial streets, train stations, stadiums and the like
The LED large screen of present open air all is by support direct mount, generally can not be rotatory, just so has brought the limitation for the show, and some are direct rotary mechanism by the motor connection, and its bandwagon effect still can not obtain promoting.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a rotary mechanism of LED large screen aims at solving among the prior art outdoor LED large screen and all is by support snap-on, generally can not be rotatory, has just so brought the limitation for the show, and some are direct rotary mechanism by the motor is connected, and its bandwagon effect still can not obtain the promotion scheduling problem.
In order to achieve the above object, the utility model provides a following technical scheme:
a rotating mechanism of an LED large screen comprises a box body, wherein an intermittent turnover mechanism is arranged in the box body, the intermittent turnover mechanism is respectively connected with three LED screens through three connecting shafts, each LED screen is a three-surface LED screen, a triangle formed by three surfaces is an equilateral triangle, the turnover mechanism comprises a motor, a driving wheel, an inner concave groove, a bulge, a guide pin, a driven wheel, a supporting shaft, an inner concave groove, a guide groove and a supporting plate, the motor is arranged on the lower inner wall of the box body, the driving wheel is fixed on the output end of the motor, the inner concave groove is arranged at the upper end of the driving wheel, the bulge is fixed on the upper inner wall of the inner concave groove, the guide pin is fixed on the bulge, the supporting plate is fixed on the inner wall of the box body, the driven wheel is rotatably connected with the upper end of the supporting plate through the supporting shaft, the inner concave groove and the guide groove are respectively provided with three, the inner concave groove and the guide groove are equidistantly and are alternately arranged at the upper end of the driven wheel, and the plurality of inner grooves and the guide grooves are respectively matched with the driving wheel and the guide pins, and the intermittent turnover mechanism is connected with a transmission mechanism through a rotating shaft.
Preferably, drive mechanism includes three connecting axle, belt pulley, pivot and a driving belt, wherein is located leftmost the pivot is fixed in the upper end middle part of motor, remaining two the pivot is all rotated and is connected in the upper end of backup pad, and is three the belt pulley is fixed in the upper end of three pivot respectively, the driving belt transmission is connected between three belt pulley, and all is provided with the conveying tooth that meshes mutually on driving belt and the three belt pulley, and is three the connecting axle is fixed in the upper end of three belt pulley respectively, and three connecting axle all runs through the last inner wall of box and is connected with three LED screen respectively.
Preferably, bearing seats are arranged at the connecting parts of the three connecting shafts and the upper inner wall of the box body.
Preferably, the lower ends of the three LED screens are fixed with bottom plates, the upper ends of the three LED screens are fixed with top covers, and the top covers and the bottom plates are the same as the cross-sectional shapes of the LED screens.
Preferably, the corners of the three bottom plates and the top cover are provided with chamfers.
Preferably, the gaps between three of the LED screens are less than two centimeters.
Compared with the prior art, the beneficial effects of the utility model are that:
1. in the scheme, the whole rotating mechanism is reasonable in structure arrangement and ingenious in conception, the rotation of three LED screens is set to be slow intermittent rotation through the improvement of a maltese cross wheel mechanism, namely a plane groove wheel mechanism, and the angle of each rotation is one hundred twenty degrees, so that the three LED screens form a plane to form a large LED screen and provide exhibition, the exhibition effect is good, the intermittent time is provided for people to watch, the practicability is strong, the problems that in the prior art, the outdoor large LED screens are directly fixed by a support and generally cannot rotate, the limitation is brought to the exhibition, the display effect cannot be improved and the like due to the fact that some rotating mechanisms directly connected by a motor drive the driving wheel to rotate in the intermittent mode, the guide pin on the driving wheel can drive the driven wheel to rotate one third of a circle in a circle, namely one hundred twenty degrees, slide in the guide slot through the guide pin, accomplish intermittent type driven effect, wherein the guide pin is in order that tangential direction gets into and withdraw from in the guide slot, consequently can not take place impact phenomenon in rotating, the lower extreme platform of this place box is slightly higher than with bellied up end plane, accomplish the cooperation, and the circle part of action wheel can contact with the guide slot part from the driving wheel, when making the guide pin do not do the drive action, still can maintain relative state, the pivot of fixing on its upper portion is rotated through the rotation drive of one hundred twenty degrees at every turn from the driving wheel, then it is rotatory together to drive three LED screens through drive mechanism.
2. In the scheme, the transmission mechanism can drive the three belt pulleys to rotate simultaneously through the belt pulleys fixed on the upper part of the transmission mechanism and the transmission belt when the rotating shaft at the leftmost side drives the rotating shaft to rotate through the rotation of the intermittent turnover mechanism, so that the synchronous rotation of the three LED screens connected on the transmission mechanism is realized, the transmission efficiency can be improved through the transmission teeth arranged on the transmission belt and the three belt pulleys, the deviation of angles of the plurality of LED screens is prevented, the bearing seats arranged at the connecting parts of the three connecting shafts and the upper inner wall of the box body can effectively improve the stability of the plurality of LED screens, meanwhile, the friction force of the connecting parts of the three connecting shafts and the upper inner wall of the box body can also be reduced, the rotation efficiency is improved, the protection capability of the plurality of LED screens is improved through the arrangement of the three bottom plates and the three top covers, the service lives of the plurality of LED screens are longer, and the gaps among the three LED screens can be further reduced through the chamfers arranged at the corners of the three bottom plates and the top covers, the gap between the three LED screens is smaller than two centimeters, so that the display effect of an LED large screen formed by three surfaces of the three LED screens can be further improved.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a partial view of the interior of the middle box body of the present invention;
fig. 3 is a left side view of the present invention;
fig. 4 is a cross-sectional view taken along line a-a of fig. 3 according to the present invention.
In the figure: 1-a box body; 2-a bottom plate; 3-an LED screen; 4-a top cover; 5-a connecting shaft; 6-belt pulley; 7-a drive belt; 8-a rotating shaft; 9-a motor; 91-driving wheel; 92-an invagination groove; 93-convex; 94-a guide pin; 10-a driven wheel; 101-supporting shaft; 102-an inner groove; 103-a guide groove; 11-support plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1-4, the present invention provides the following technical solutions: a rotating mechanism of an LED large screen comprises a box body 1, an intermittent turnover mechanism is arranged in the box body 1, the intermittent turnover mechanism is respectively connected with three LED screens 3 through three connecting shafts 5, each LED screen 3 is a three-surface LED screen, a triangle formed by three surfaces is an equilateral triangle, the turnover mechanism comprises a motor 9, a driving wheel 91, an inner concave groove 92, a protrusion 93, a guide pin 94, a driven wheel 10, a supporting shaft 101, an inner concave groove 102, a guide groove 103 and a supporting plate 11, the motor 9 is arranged on the lower inner wall of the box body 1, the driving wheel 91 is fixed on the output end of the motor 9, the inner concave groove 92 is arranged at the upper end of the driving wheel 91, the protrusion 93 is fixed on the upper inner wall of the inner concave groove 92, the guide pin 94 is fixed on the protrusion 93, the supporting plate 11 is fixed on the inner wall of the box body 1, the driven wheel 10 is rotatably connected with the upper end of the supporting plate 11 through the supporting shaft 101, and the inner concave grooves 102 and the guide grooves 103 are respectively provided in three numbers, the three inner grooves 102 and the guide grooves 103 are equidistantly and crossly arranged at the upper end of the driven wheel 10, the inner grooves 102 and the guide grooves 103 are respectively matched with the driving wheel 91 and the guide pins 94, and the intermittent turnover mechanism is connected with a transmission mechanism through a rotating shaft 8.
In the embodiment of the utility model, the whole rotating mechanism is reasonable in structure, ingenious in conception, and through the improvement of a maltese cross wheel mechanism, namely a plane groove wheel mechanism, the rotation of three LED screens 3 is set to be slow intermittent rotation, and the angle of each rotation is one hundred twenty degrees, so that the three LED screens 3 form a plane to form a large LED screen and provide exhibition, the exhibition effect is good, the intermittent time is provided for people to watch, the practicability is strong, the problems that the outdoor large LED screen is directly fixed by a bracket and generally cannot rotate in the prior art, the limitation is brought to exhibition, the exhibition effect of some rotating mechanisms directly connected by a motor cannot be improved and the like are effectively solved, when the utility model is used, the motor 9 is used for driving the driving wheel 91 to rotate in the intermittent mode, the guide pin 94 on the driving wheel 91 can drive the driven wheel 10 to rotate one third of a circle by one hundred degrees in a rotation circle, namely twenty degrees, the guide pin 94 slides in the guide groove 103 to complete the intermittent driving effect, wherein the guide pin 94 enters and exits the guide groove 103 in the tangential direction, so that no impact occurs during rotation, the lower end platform of the box body 1 is slightly higher than the upper end plane of the protrusion 93 to complete the matching, the circular part of the driving wheel 91 can be partially contacted with the guide groove 103 of the driven wheel 10, so that the guide pin 94 can still maintain a relative state when not performing driving action, the rotating shaft 8 fixed on the upper part of the driven wheel 10 is driven to rotate by the rotation of one hundred twenty degrees at each time of the driven wheel 10, and then the three LED screens 3 are driven to rotate together through the transmission mechanism.
Specifically, drive mechanism includes three connecting axle 5, belt pulley 6, pivot 8 and a driving belt 7, wherein lie in the upper end middle part that leftmost pivot 8 is fixed in motor 9, remaining two pivot 8 all rotate and connect in the upper end of backup pad 11, three belt pulley 6 is fixed in the upper end of three pivot 8 respectively, driving belt 7 transmission is connected between three belt pulley 6, and all be provided with the conveying tooth of engaged with on driving belt 7 and the three belt pulley 6, three connecting axle 5 is fixed in the upper end of three belt pulley 6 respectively, and three connecting axle 5 all runs through the last inner wall of box 1 and is connected with three LED screen 3 respectively.
In this embodiment: drive mechanism's setting can be when being located leftmost pivot 8 and drive its rotation through intermittent type tilting mechanism's rotation, rotates when driving three belt pulley 6 through belt pulley 6 and driving belt 7 that fix on its upper portion, realizes that three LED screen 3 of connection on drive mechanism carries out synchronous rotation, sets up the conveying tooth that can improve transmission efficiency on driving belt 7 and three belt pulley 6, prevents that a plurality of LED screen 3 from taking place the deviation of angle.
Specifically, the connecting parts of the three connecting shafts 5 and the upper inner wall of the box body 1 are provided with bearing seats.
In this embodiment: the bearing seat that all sets up at the last inner wall connection position of three connecting axle 5 and box 1 can effectively improve a plurality of LED and screen 3 stability, also can reduce the frictional force at the last inner wall connection position of three connecting axle 5 and box 1 simultaneously, improves rotation efficiency.
Specifically, the lower ends of the three LED screens 3 are all fixed with the bottom plate 2, the upper ends of the three LED screens 3 are all fixed with the top cover 4, and the top cover 4 and the bottom plate 2 are all the same as the cross-sectional shape of the LED screens 3.
In this embodiment: the arrangement of the three bottom plates 2 and the three top covers 4 improves the protection capability of the LED screens 3, so that the service lives of the LED screens 3 are longer.
Specifically, the corners of the three bottom plates 2 and the top cover 4 are provided with chamfers.
In this embodiment: the corners of the three bottom plates 2 and the top cover 4 are provided with chamfers, so that gaps among the three LED screens 3 can be further reduced.
Specifically, the gap between the three LED screens 3 is less than two centimeters.
In this embodiment: the gap between the three LED screens 3 is smaller than two centimeters, so that the display effect of an LED large screen formed by three surfaces of the three LED screens 3 can be further improved.
The utility model discloses a theory of operation and use flow: the utility model discloses when using, at first drive action wheel 91 through motor 9 in the intermittent type tilting mechanism and rotate, guide pin 94 on action wheel 91 can drive from driving wheel 10 rotation third circle and be one hundred twenty degrees rotating the round, slide in guide slot 103 through guide pin 94, accomplish intermittent type drive's effect, wherein guide pin 94 gets into with tangential direction and withdraws from in the guide slot 103, consequently impact phenomenon can not take place in rotating, the lower extreme platform of box 1 here is slightly higher than the upper end plane with protruding 93, accomplish the cooperation, and the circle part of action wheel 91 can contact with the guide slot 103 part from driving wheel 10, when making guide pin 94 not do the drive action, still can maintain relative state, the pivot 8 rotation of fixing on its upper portion is driven through the rotation of every one hundred twenty degrees from driving wheel 10, then drive three LED through drive mechanism and screen 3 rotatory together, drive mechanism's setting can drive its rotation through the rotation that intermittent type tilting mechanism is located leftmost pivot 8 When in use, the belt pulley 6 fixed on the upper part of the LED screen synchronous rotation device drives the three belt pulleys 6 to rotate simultaneously through the transmission belt 7, so that the synchronous rotation of the three LED screens 3 connected on the transmission mechanism is realized, the transmission efficiency can be improved through the transmission teeth arranged on the transmission belt 7 and the three belt pulleys 6, the deviation of the angles of the plurality of LED screens 3 is prevented, the bearing seats arranged at the connecting parts of the three connecting shafts 5 and the upper inner wall of the box body 1 can effectively improve the stability of the plurality of LED screens 3, meanwhile, the friction force of the connecting parts of the three connecting shafts 5 and the upper inner wall of the box body 1 can also be reduced, the rotation efficiency is improved, the protection capability of the plurality of LED screens 3 is improved through the arrangement of the three bottom plates 2 and the three top covers 4, the service lives of the plurality of LED screens 3 are longer, and the gaps among the three LED screens 3 can be further reduced through the chamfers arranged at the corners of the three bottom plates 2 and the top covers 4, the gap between the three LED screens 3 is smaller than two centimeters, the display effect of an LED large screen formed by three surfaces in the three LED screens 3 can be further improved, the structure of each rotating mechanism is reasonable to set, the conception is ingenious, the rotation of the three LED screens 3 is set to be slow intermittent rotation through the improvement of a maltese cross wheel mechanism, namely a plane geneva mechanism, the rotating angle of each time is one hundred twenty degrees, the three LED screens 3 form a plane, the LED large screen is formed and displayed, the display effect is good, the intermittent time is provided for people to watch, the practicability is strong, the problems that in the prior art, the outdoor LED large screen is directly fixed by a support and cannot rotate generally are effectively solved, the limitation is brought to the display, some rotating mechanisms which are directly connected by a motor, the display effect cannot be improved and the like.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a rotary mechanism of LED large screen which characterized in that: comprises a box body (1), wherein an intermittent turnover mechanism is arranged in the box body (1), the intermittent turnover mechanism is respectively connected with three LED screens (3) through three connecting shafts (5), each LED screen (3) is designed to be a three-sided LED screen, a triangle formed by three surfaces is an equilateral triangle, the turnover mechanism comprises a motor (9), a driving wheel (91), an inner sunken groove (92), a bulge (93), a guide pin (94), a driven wheel (10), a supporting shaft (101), an inner groove (102), a guide groove (103) and a supporting plate (11), the motor (9) is arranged on the lower inner wall of the box body (1), the driving wheel (91) is fixed on the output end of the motor (9), the inner sunken groove (92) is arranged at the upper end of the driving wheel (91), the bulge (93) is fixed on the upper inner wall of the inner sunken groove (92), the guide pin (94) is fixed on the bulge (93), backup pad (11) are fixed in on the inner wall of box (1), rotate through back shaft (101) from driving wheel (10) and connect in the upper end of backup pad (11), inner grove (102) and guide slot (103) all are provided with threely, and are three inner grove (102) and guide slot (103) equidistance are alternately seted up in the upper end from driving wheel (10), and a plurality of inner groves (102) and guide slot (103) respectively with action wheel (91) and guide pin (94) phase-match, intermittent type tilting mechanism is connected with drive mechanism through pivot (8).
2. The rotating mechanism of the LED large screen according to claim 1, wherein: drive mechanism includes three connecting axle (5), belt pulley (6), pivot (8) and a driving belt (7), wherein is located leftmost pivot (8) are fixed in the upper end middle part of motor (9), and remain two pivot (8) are all rotated and are connected in the upper end of backup pad (11), and are three belt pulley (6) are fixed in the upper end of three pivot (8) respectively, driving belt (7) transmission is connected between three belt pulley (6), and all is provided with the conveying tooth of engaged with on driving belt (7) and three belt pulley (6), and is three connecting axle (5) are fixed in the upper end of three belt pulley (6) respectively, and three connecting axle (5) all run through the last inner wall of box (1) and are connected with three LED screen (3) respectively.
3. The rotating mechanism of the LED large screen according to claim 2, wherein: and bearing seats are arranged at the connecting parts of the three connecting shafts (5) and the upper inner wall of the box body (1).
4. The rotating mechanism of the LED large screen according to claim 3, wherein: the lower extreme of three LED screen (3) all is fixed with bottom plate (2), and is three the upper end of LED screen (3) all is fixed with top cap (4), and top cap (4) and bottom plate (2) all are the same with the cross-sectional shape of LED screen (3).
5. The rotating mechanism of the LED large screen according to claim 4, wherein: and chamfers are arranged at the corners of the three bottom plates (2) and the top cover (4).
6. The rotating mechanism of the LED large screen according to claim 5, wherein: gaps among the three LED screens (3) are less than two centimeters.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202120081999.2U CN214744294U (en) | 2021-01-13 | 2021-01-13 | Rotary mechanism of LED large screen |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202120081999.2U CN214744294U (en) | 2021-01-13 | 2021-01-13 | Rotary mechanism of LED large screen |
Publications (1)
Publication Number | Publication Date |
---|---|
CN214744294U true CN214744294U (en) | 2021-11-16 |
Family
ID=78638957
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202120081999.2U Expired - Fee Related CN214744294U (en) | 2021-01-13 | 2021-01-13 | Rotary mechanism of LED large screen |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN214744294U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115862484A (en) * | 2023-01-04 | 2023-03-28 | 王洪佳 | Upset LED screen |
CN116608378A (en) * | 2023-05-26 | 2023-08-18 | 孙运文 | Wisdom is conflagration monitoring device for forestry |
-
2021
- 2021-01-13 CN CN202120081999.2U patent/CN214744294U/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115862484A (en) * | 2023-01-04 | 2023-03-28 | 王洪佳 | Upset LED screen |
CN116608378A (en) * | 2023-05-26 | 2023-08-18 | 孙运文 | Wisdom is conflagration monitoring device for forestry |
CN116608378B (en) * | 2023-05-26 | 2024-02-09 | 孙运文 | Wisdom is conflagration monitoring device for forestry |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN214744294U (en) | Rotary mechanism of LED large screen | |
CN109561183A (en) | Display screen module and mobile terminal | |
EP1569468A3 (en) | Shutter device and projection type video display | |
CN110459143B (en) | Splicing naked eye holographic display tool | |
CN209947333U (en) | Campus information display screen with clean function | |
CN216108229U (en) | Advertisement banister that trilateral turning and fixed advertisement picture combine | |
CN2891187Y (en) | Multi-tier multi-image display unit | |
CN214847579U (en) | Electronic information display device | |
CN210805099U (en) | Novel many breadths advertisement show device | |
CN211232211U (en) | A slide rail for LED display screen | |
CN211529549U (en) | Vertical rotary advertisement box | |
CN110580865B (en) | Advertising lamp box capable of switching advertising panel forms | |
CN213303540U (en) | Automatic change and can hang bill-board of many bill-boards | |
CN220651556U (en) | COB box structure for spherical screen display system | |
CN221406184U (en) | Color wheel and projection device | |
CN216596794U (en) | Advertisement page turning structure | |
CN217690413U (en) | Display screen installation component for advertisement promotion | |
CN215216092U (en) | Compact type pattern frame assembly structure | |
CN2338841Y (en) | Endless chain type double surface, multi-picture and secret turning-over advertisement | |
CN212804895U (en) | Rotating device for large screen of movie and television in market | |
CN214099066U (en) | Novel advertisement display device | |
CN212990589U (en) | Think political affairs education with think political affairs knowledge propaganda device | |
CN217784731U (en) | LED display screen revolution mechanic | |
CN220770659U (en) | Movable LED flat panel display | |
CN213458866U (en) | Three-dimensional LED display screen module |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211116 |