CN108898968A - A kind of installation moves back and forth the rectangular outdoor display screen of persistence of vision all-colour LED lamp bar - Google Patents
A kind of installation moves back and forth the rectangular outdoor display screen of persistence of vision all-colour LED lamp bar Download PDFInfo
- Publication number
- CN108898968A CN108898968A CN201810893493.4A CN201810893493A CN108898968A CN 108898968 A CN108898968 A CN 108898968A CN 201810893493 A CN201810893493 A CN 201810893493A CN 108898968 A CN108898968 A CN 108898968A
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- CN
- China
- Prior art keywords
- led lamp
- vision
- lamp bar
- persistence
- colour led
- 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.)
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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
Abstract
The present invention discloses a kind of a kind of rectangular outdoor display screen of installation reciprocating motion persistence of vision all-colour LED lamp bar of the rectangular outdoor display screen that installation moves back and forth persistence of vision all-colour LED lamp bar：The display board is moved reciprocatingly in certain distance by electrical motor driven, and is equipped with a plurality of all-colour LED lamp bar thereon；The display board is spliced by multiple identical splice plates for being provided with joinery and its construction；The splice plate is produced using extrusion process, can be according to requiring to carry out cutting to change length；Display board simultaneously can splice quantity according to requiring to change to change size；Its display content of the rectangular advertising lamp box carries out operation editor by controlling APP；This rectangular outdoor display screen is not only in use cost lower than traditional outdoor-screen, also below same level outdoor-screen in cost of manufacture, also as its special structure, also more much lower than same level conditional electronic screen in energy consumption.
Description
The present invention relates to electrical screen, specifically a kind of installation moves back and forth the rectangular of persistence of vision all-colour LED lamp bar
Outdoor display screen.
Background technique
Outdoor LED display screen, be widely used in sport, advertisement, station, market, hospital, hotel, bank, construction market,
The purposes such as management and other public places possess display advertising, and information is issued, traffic guidance, and intention is shown；
Outdoor LED display screen can show content by fixed computer software editor, can display text, figure, animation, video,
The formatted files such as video source.
But outdoor LED display screen needs to control computer, multimedia video processor, transmission cards, receives card, switch electricity
Source adapter could use, and cost of manufacture is high, needs that accessory is more, use cost height, calorific value is big, maintenance cost is high；
Persistence of vision advertisement machine is limited to the special area so it rotates in a circumferential direction of composed structure itself and is difficult to do greatly, as it is circumferentially revolved
Turning face diameter is more than 0.6 meter, and amplitude of fluctuation is difficult to control when flabellum rotates, and easily causes fixed structure to fall off and causes danger；And
Persistence of vision advertisement machine can only be shown in the circle that its rotation is formed, and easily cause space waste.
Beneficial effect
It using equipment scheme provided by the invention, is compared with existing product equipment and technology, there is following advantage；
（1）A kind of installation of the invention moves back and forth the rectangular outdoor display screen of persistence of vision all-colour LED lamp bar, uses one
Kind view-based access control model persists the linearly aligned dot matrix all-colour LED lamp bar of phenomenon as display component, compares conventional planar electrical screen
A small amount of LED lamp bead is only needed, has power small, the small feature of calorific value.
（2）A kind of installation of the invention moves back and forth the rectangular outdoor display screen of persistence of vision all-colour LED lamp bar, is equipped with
Wireless transport module shows that content carries out operation editor to LED display component by control APP, controlling terminal can be mobile phone,
Plate, mobile PC end without fixed control computer, video processor, transmission cards, receive card, and use cost is low.
（3）A kind of installation of the invention moves back and forth the rectangular outdoor display screen of persistence of vision all-colour LED lamp bar, whole to tie
Structure is different from conditional electronic screen, is far below same level conditional electronic screen in cost of manufacture.
（4）A kind of installation of the invention moves back and forth the rectangular outdoor display screen of persistence of vision all-colour LED lamp bar, is showing
Plate also on can put up static poster, still can be with presenting advertising content when rectangular outdoor display screen does not work.
（5）A kind of installation of the invention moves back and forth the rectangular outdoor display screen of persistence of vision all-colour LED lamp bar, display board
It is spliced by multiple identical splice plates for being provided with joinery and its construction, splice plate is produced using extrusion process, can freely be cut
It cuts and changes length to change display board size.
For achieving the above object, the present invention is disclosed directly below technical solution：A kind of installation reciprocating motion persistence of vision is complete
The rectangular outdoor display screen of color LED light bar, it is characterised in that the display board done in certain distance from electrical motor driven toward
Multiple movement, and a plurality of all-colour LED lamp bar is installed thereon；The display board is by multiple identical spellings for being provided with joinery and its construction
Fishplate bar is spliced；The splice plate is produced using extrusion process, can be according to requiring to carry out cutting to change length；Display board
And quantity can be spliced according to requiring to change to change size；Its display content of the rectangular advertising lamp box is by controlling APP
Carry out operation editor.
In above-mentioned technical proposal, it is preferred that the reciprocating motion component is rotated by sector gear, respectively on pinion rack
With under rack gear to forming rack displacement.
In above-mentioned technical proposal, it is preferred that the rack displacement distance A and rack displacement distance B subtract each other rear shift length
Equal to the lamp and lamp distance C on display board.
In above-mentioned technical proposal, it is preferred that being respectively set in its two ends of the splice plate can the mutual Tenon knot that connects of the fourth of the twelve Earthly Branches
Structure；The splice plate intermediate position is provided with cutting middle separated time slot, and surface is equipped with boring positioning slot.
In above-mentioned technical proposal, it is preferred that the splice plate is provided with fixing groove and lamp plate mounting groove.
In above-mentioned technical proposal, it is preferred that the splice plate is provided with the static poster position of surfacing.
In above-mentioned technical proposal, it is preferred that the reciprocating motion component is respectively fixedly connected with display board and main body rack.
In above-mentioned technical proposal, it is preferred that the folding of certain angle can be carried out between the back casing and the procapsid.
Detailed description of the invention
Fig. 1 is that a kind of rectangular open air for installation reciprocating motion persistence of vision all-colour LED lamp bar for applying example according to the present invention is aobvious
Display screen decomposition diagram；
Fig. 2 is the assembling of reciprocating motion component and the shift length A schematic diagram for applying example according to the present invention；
Fig. 3 is the assembling of reciprocating motion component and the shift length B schematic diagram for applying example according to the present invention；
Fig. 4 is the assembling of reciprocating motion component and the scheme of installation for applying example according to the present invention；
Fig. 5 is the splice plate and lamp and lamp distance C schematic diagram for applying example according to the present invention；
Fig. 6 is the assembling schematic diagram for applying the display board of example according to the present invention；
Fig. 7 is display board installation and static poster position and the display board shift length D schematic diagram for applying example according to the present invention；
Fig. 8 is the display board slide assemblies schematic diagram for applying example according to the present invention；
Fig. 9 is the folding schematic diagram for applying the procapsid and back casing of example according to the present invention；
Label declaration in schematic diagram：
Display board（100）, splice plate（110）, lamp plate mounting groove（101）, lamp plate limit（102）, fourth of the twelve Earthly Branches slot（103）, tenon
（104）, equal part splice plate（105）, fixing groove（106）, boring positioning slot（107）, cut middle separated time slot（108）, lamp and lamp away from
From C（109）；Display board shift length D（160）, display board fixation hole（170）, static poster position（180）；LED light bar
（120）, wiring board（121）, long margin frame（130）, countersunk head bore channel（131）, post-reinforcing determines hole（132）；Short frame（140）, sink
Head bore channel（141）, post-reinforcing determines hole（142）, boring positioning slot（143）, post-reinforcing determines side opening（144）, tapping screw
（150）；
Move back and forth component（200）, driving group（210）, electric motor（211）, motor driven gear wheel（212）；Gear set
（220）, sector gear（221）, driven gear（222）, rack gear group（230）, on rack gear（231）, under rack gear（232）, rack gear position
Shifting group（240）, support base（241）, sliding block（242）, cylindrical linear rail（243）；Rack gear fixed plate（250）, display board fixes
Position（251）；Motor fixed plate（260）, shift length（270）Rack displacement distance A (261), rack displacement distance B (262), branch
Support seat A（263）, slide block B（264）；
Master control（300）, Switching Power Supply（310）, master control borad（320）, transmission line（330）, position detecting module（340）；
Display board slide assemblies（400）, support base（410）, sliding block（420）, cylindrical linear rail（430）；
Main body rack（500）；
Back casing（600）, open range（610）, hinge（611）；
Procapsid（700）, windowing（710）；Transparent panel（800）；Control APP（900）
The rectangular outdoor display screen of persistence of vision all-colour LED lamp bar（1000）.
Specific implementation method
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, the implementation described with reference to figure
Example is exemplary, and is used to explain the present invention, and is not considered as limiting the invention.1 to Fig. 9 is specific with reference to the accompanying drawing
The rectangular outdoor display screen that a kind of installation according to an embodiment of the present invention moves back and forth persistence of vision all-colour LED lamp bar is described.
It is according to Fig. 1 that a kind of installation moves back and forth the rectangular outdoor display screen decomposition of persistence of vision all-colour LED lamp bar
Schematic diagram, working method are the display board（100）It is fixedly connected on the reciprocating motion component（200）Gear movement plate
（250）On, follow gear movement plate（250）It moves reciprocatingly；It is mounted on motor support plate（260）On master control borad（320）It connects
Receive control APP（900）The program sent simultaneously controls LED light bar after being converted（120）It is flashed；It is persisted using human eye vision
Characteristic can observe display board（100）Upper shown image information；The reciprocating motion component（200）It is fixedly mounted on
Main body rack（500）On；The main body rack（500）It is fixedly connected on back casing（600）On；The main body rack（500）Its
On be also equipped with display board slide assemblies（400）, the display board slide assemblies（400）On support base（410）It is fixedly mounted
In main body rack（500）On；The display board slide assemblies（400）On sliding block（420）It is fixedly mounted on display board（100）Refer to
Positioning is set；The sliding block（420）It is mounted on cylindrical linear rail（430）Above and slide displacement can be carried out；The cylinder straight line
Guide rail（430）Two ends are supported seat（410）It is fixed, the support base（410）It is fixedly mounted on main body rack（500）On；Institute
State procapsid（700）Its windowing（710）Transparent panel is inside installed（800）, the procapsid（700）With the back casing
（600）Between can carry out the folding of certain angle, thus the display board to installation inside housings（100）With reciprocating motion component
（200）It is safeguarded and is replaced.
It -4 show according to fig. 2, moves back and forth component assembling and shift length A schematic diagram, the reciprocating motion component
（200）Including：Driving group（210）, gear set（220）, rack gear group（230）, rack displacement group（240）, rack gear fixed plate
（250）, motor fixed plate（260）；The motor fixed plate（260）Electric motor is installed thereon（211）, the electric motor
（211）Motor driven gear wheel is installed on its armature spindle（212）, the motor fixed plate（260）It is also equipped with gear set thereon
（220）；The gear set（220）Including sector gear（221）With the driven gear of installation thereunder（222）；
The driven gear（222）With the motor driven gear wheel（212）Engagement, and drive the sector gear above it（221）
It rotates in a circumferential direction；The sector gear（221）When rotating in a circumferential direction respectively with rack gear group（230）Rack gear on（231）Under rack gear
（232）Engagement, thus with carry-over bar group（230）It moves reciprocatingly；The carry-over bar group（230）It is fixedly mounted on rack gear fixed plate
（250）On；The rack gear fixed plate（250）It is fixedly installed with rack displacement group thereon（240）On sliding block（242）, the cunning
Block（242）It is mounted on cylindrical linear rail（243）Above and slide displacement can be carried out；The cylindrical linear rail（243）Two ends
It is supported seat（241）It is fixed, the support base（241）It is fixedly mounted on motor fixed plate（260）On；The shift length
（270）Rack displacement distance B (262) gained distance afterwards is subtracted for rack displacement distance A (261)；The rack displacement distance A is
Sector gear（221）Under rack gear（232）Slide block B when engagement separation（264）With support base A（263）Between distance；The rack gear
Shift length B is sector gear（221）On rack gear（231）Slide block B when engagement separation（264）With support base A（263）Spacing
From；The motor fixed plate（260）It is also equipped with master control thereon（300）, the master control（300）Including Switching Power Supply（310）, it is main
Control plate（320）, transmission line（330）, position detecting module（340）；The Switching Power Supply（310）By after city's electrotransformation through master control borad
（320）It is respectively sent to electric motor（211）And LED light bar（120）；The master control borad（320）It is provided with wireless transmission
Module and and control APP（900）It is wirelessly connected, the master control borad（320）APP will be controlled（900）The image information sent
It transforms into after flash signal through transmission line（330）It send to being mounted on display board（100）On multiple LED light bars（120）, described
LED light bar（120）It is flashed according to the signal received；The position detecting module（340）Moment detects LED light bar
（120）Deformation trace and master control borad of instead feeding in real time（320）, by master control borad（320）LED light bar is transmitted to after calculating flash signal
（120）.
It is according to Fig.5, splice plate and lamp and lamp distance C schematic diagram, the splice plate（110）Two ends, which are provided with, is in
Center vertical symmetrical lamp plate mounting groove up and down（101）With fourth of the twelve Earthly Branches slot（103）And tenon（104）；Multiple splice plates（110）Splicing
When, originate splice plate（110）On the tenon（104）With the fourth of the twelve Earthly Branches slot（103）With another splice plate（110）On the fourth of the twelve Earthly Branches
Slot（103）With the tenon（104）After the mutual fourth of the twelve Earthly Branches connects, splice plate is originated（110）Surface and another splice plate（110）Surface is neat
It is flat；The splice plate（110）It is additionally provided with lamp plate limit thereon（102）, fixing groove（106）, boring positioning slot（107）, cutting
Middle separated time slot（108）；The splice plate（110）On lamp plate mounting groove（101）Its edge part is provided with lamp plate limit（102）,
The lamp plate limit（102）For limiting LED light bar（120）Upper and lower displacement occurs after installation；The splice plate（110）It sets thereon
It is equipped with the cutting middle separated time slot for carrying out secondary operation label（108）, the splice plate（110）Prolong cutting middle separated time slot（108）Into
Row cutting, forms two block-shaped identical equal part splice plates（105）, the equal part splice plate（105）The fourth of the twelve Earthly Branches connects splicing respectively
Plate（110）Both sides；The lamp and lamp distance C（109）For display board（100）Two adjacent LED lamp bars of upper installation（120）Between
Vertical range, the lamp and lamp distance C be equal to rack displacement distance A and rack displacement distance B and subtract each other rear shift length, only
The equal LED light bar that can just make flashing of shift length between the two（120）Between be connected gapless.
It is according to Fig.6, the assembling schematic diagram of display board, the display board（100）By multiple identical splice plates
（110）It is connect and is formed by connecting by the mutual fourth of the twelve Earthly Branches of the joinery and its construction of itself, the splice plate（110）The fourth of the twelve Earthly Branches can be up and down after connecing, and makes more
A display board（100）End flushes；Described two pieces etc. are divided splice plate（105）The fourth of the twelve Earthly Branches connects display board respectively（100）Both sides are most marginal
One piece of splice plate（110）；The display board（100）Same LED light bar（120）Two parallel edges of installation direction are equipped with short side
Frame（140）；The display board（100）Same LED light bar（120）Two vertical edges of installation direction are equipped with long margin frame（130）；
The short frame（140）It is provided with countersunk head bore channel（141）With boring positioning slot（143）, for positioning post-processing drilling
Position prevents deflection of borehole designated position；The countersunk head bore channel（141）It is provided with post-reinforcing and determines hole（142）, after described
It is fixed hole（142）Pass through tapping screw（150）With the splice plate（110）On fixing groove（106）It is fixedly connected；The brill
Hole locating slot（143）It is provided with post-reinforcing and determines side opening（144）, the post-reinforcing determines side opening（144）Pass through tapping screw
（150）It is fixedly connected with splice plate（110）And fixed bit is in boring positioning slot（107）On；The long margin frame（130）It is arranged thereon
There is countersunk head bore channel（131）；It is provided with post-reinforcing and determines hole（132）, the post-reinforcing determines hole（132）Pass through tapping screw
（150）With the splice plate（110）On fixing groove（106）It is fixedly connected；The long margin frame（130）Its end and short frame
（140）Bottom surface alignment；The splice plate（110）It is produced using extrusion process, is provided with the through slot for mitigating total amount thereon；The splicing
Plate（110）It can be according to requiring to carry out cutting to change length, the display board（100）Can according to require change splicing quantity from
And change size.
It is according to Fig.7, display board installation and static poster position and display board shift length D schematic diagram, it is described
Display board（100）It is additionally provided with display board fixation hole thereon（170）, the display board fixation hole（170）It is back and forth being transported with setting
Dynamic component（200）In rack gear fixed plate（250）On display board fixed bit（251）It is fixedly connected after matching using screw,
Make display board（100）Reciprocating motion component can be followed（200）It moves reciprocatingly；The display board shift length D（160）For display
Plate（100）Apart from back casing（600）The anticollision distance at edge；The splice plate（110）It is additionally provided with surfacing thereon
Static poster position（180）, the display board（100）By multiple splice plates（110）It is spliced, Surface L ED lamp bar
（120）Only account for very little area, and display board（100）Other surfaces by static poster position（180）Covering, to be formed huge
Big static poster position, the static poster puted up need to avoid LED light bar（120）；The static state poster position（180）?
The rectangular outdoor display screen of persistence of vision all-colour LED lamp bar（1000）When not working, moreover it is possible to the effect of playing traditional poster.
It is according to Fig.8, display board slide assemblies schematic diagram, the display board slide assemblies（400）On sliding block
（420）It is fixedly mounted on display board（100）On designated position；The sliding block（420）It is mounted on cylindrical linear rail（430）On simultaneously
It can carry out slide displacement；The cylindrical linear rail（430）Two ends are supported seat（410）It is fixed, the support base（410）Gu
Dingan County is mounted in main body rack（500）On.
It is according to Fig. 9 the folding schematic diagram of procapsid and back casing, the procapsid（700）With the back casing
（600）Between the hinge that can carry out certain angle folding is installed（611）, thus the display board to installation inside housings
（100）With reciprocating motion component（200）It is safeguarded and is replaced, and the procapsid（700）With the back casing（600）Closure
There is water-proof function afterwards.
It is recited above to implement to be only that preferred embodiments of the present invention will be described, not to structure of the invention
Conception and scope is defined, without departing from the design concept of the invention, the ordinary engineering and technical personnel in this field
To the present invention without creatively make various modifications, improvement, modification, replacement and design for the similar structure of the design and implementation
Example, should all fall into protection scope of the present invention.
Claims (10)
1. the rectangular outdoor display screen that a kind of installation moves back and forth persistence of vision all-colour LED lamp bar, it is characterised in that；The display
Plate is moved reciprocatingly in certain distance by electrical motor driven, and is equipped with a plurality of all-colour LED lamp bar thereon；The display board
It is spliced by multiple identical splice plates for being provided with joinery and its construction.
2. the rectangular outdoor display screen that a kind of installation moves back and forth persistence of vision all-colour LED lamp bar, it is characterised in that；The splicing
Plate is produced using extrusion process, can be according to requiring to carry out cutting to change length；Display board can simultaneously splice according to requiring to change
Quantity is to change size.
3. the rectangular outdoor display screen that a kind of installation moves back and forth persistence of vision all-colour LED lamp bar, it is characterised in that；It is described rectangular
Its display content of advertising lamp box carries out operation editor by controlling APP.
4. the rectangular outdoor display that a kind of installation according to claim 1 to 3 moves back and forth persistence of vision all-colour LED lamp bar
Screen, it is characterised in that：The reciprocating motion component is rotated by sector gear, respectively on pinion rack under rack gear to being formed
Rack displacement.
5. a kind of rectangular outdoor display of installation reciprocating motion persistence of vision all-colour LED lamp bar described in -4 according to claim 1
Screen, it is characterised in that：The rack displacement distance A and rack displacement distance B subtracts each other rear shift length equal to the lamp on display board
With lamp distance C.
6. a kind of rectangular outdoor display of installation reciprocating motion persistence of vision all-colour LED lamp bar described in -5 according to claim 1
Screen, it is characterised in that：Being respectively set in its two ends of the splice plate can the mutual joinery and its construction that connects of the fourth of the twelve Earthly Branches；The splice plate is wherein
Meta position, which installs, is equipped with cutting middle separated time slot, and surface is equipped with boring positioning slot.
7. a kind of rectangular outdoor display of installation reciprocating motion persistence of vision all-colour LED lamp bar described in -6 according to claim 1
Screen, it is characterised in that：The splice plate is provided with fixing groove and lamp plate mounting groove.
8. a kind of rectangular outdoor display of installation reciprocating motion persistence of vision all-colour LED lamp bar described in -7 according to claim 1
Screen, it is characterised in that：The splice plate is provided with the static poster position of surfacing.
9. a kind of rectangular outdoor display of installation reciprocating motion persistence of vision all-colour LED lamp bar described in -8 according to claim 1
Screen, it is characterised in that：The reciprocating motion component is respectively fixedly connected with display board and main body rack.
10. a kind of rectangular outdoor display of installation reciprocating motion persistence of vision all-colour LED lamp bar described in -9 according to claim 1
Screen, it is characterised in that：The folding of certain angle can be carried out between the back casing and the procapsid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810893493.4A CN108898968A (en) | 2018-08-08 | 2018-08-08 | A kind of installation moves back and forth the rectangular outdoor display screen of persistence of vision all-colour LED lamp bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810893493.4A CN108898968A (en) | 2018-08-08 | 2018-08-08 | A kind of installation moves back and forth the rectangular outdoor display screen of persistence of vision all-colour LED lamp bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108898968A true CN108898968A (en) | 2018-11-27 |
Family
ID=64353363
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810893493.4A Pending CN108898968A (en) | 2018-08-08 | 2018-08-08 | A kind of installation moves back and forth the rectangular outdoor display screen of persistence of vision all-colour LED lamp bar |
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|---|---|
| CN (1) | CN108898968A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109887423A (en) * | 2019-03-05 | 2019-06-14 | 泉州台商投资区华进设计有限公司 | A kind of LED outdoor display screen based on concave and convex lenses persistence of vision wiper curtain |
| CN111120937A (en) * | 2019-12-23 | 2020-05-08 | 谱迪设计顾问(深圳)有限公司 | Dynamic atmosphere lamp |
| CN112268819A (en) * | 2020-10-13 | 2021-01-26 | 常州安康医疗器械有限公司 | Tool bit life testing device of ultrasonic knife |
-
2018
- 2018-08-08 CN CN201810893493.4A patent/CN108898968A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109887423A (en) * | 2019-03-05 | 2019-06-14 | 泉州台商投资区华进设计有限公司 | A kind of LED outdoor display screen based on concave and convex lenses persistence of vision wiper curtain |
| CN111120937A (en) * | 2019-12-23 | 2020-05-08 | 谱迪设计顾问(深圳)有限公司 | Dynamic atmosphere lamp |
| CN111120937B (en) * | 2019-12-23 | 2021-11-19 | 谱迪设计顾问(深圳)有限公司 | Dynamic atmosphere lamp |
| CN112268819A (en) * | 2020-10-13 | 2021-01-26 | 常州安康医疗器械有限公司 | Tool bit life testing device of ultrasonic knife |
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| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181127 |
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| WD01 | Invention patent application deemed withdrawn after publication |