CN108257521A - A kind of advertising lamp box of automatic replacement advertisement poster - Google Patents
A kind of advertising lamp box of automatic replacement advertisement poster Download PDFInfo
- Publication number
- CN108257521A CN108257521A CN201810066572.8A CN201810066572A CN108257521A CN 108257521 A CN108257521 A CN 108257521A CN 201810066572 A CN201810066572 A CN 201810066572A CN 108257521 A CN108257521 A CN 108257521A
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- CN
- China
- Prior art keywords
- picture
- lamp box
- advertisement poster
- track
- exhibition
- 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
- G09F11/00—Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position
- G09F11/02—Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position the display elements being secured to rotating members, e.g. drums, spindles
- G09F11/10—Electrical control therefor
Abstract
The invention belongs to advertising lamp box technical fields, and in particular to a kind of advertising lamp box of automatic replacement advertisement poster.The lamp box includes advertisement poster spool and light box, and box house setting displaying picture slot changes painting folder and changing reel track in advance.It is pre- to change in painting folder including multiple different advertisement poster spools for replacement, changing reel track includes two tracks and is respectively communicated with displaying picture slot and the pre- front-end and back-end for changing painting folder, setting receives picture device and send picture device on two tracks, exhibition picture track is additionally provided with below displaying picture slot, opens up connection exhibition picture device on picture track.The advertising lamp box can store several advertisement posters simultaneously, and the advertisement poster that can be shown to lamp box be replaced automatically, and the effect for publicizing popularization is more preferable, install and use that process is simpler, and the economic well-being of workers and staff of bigger can be brought for advertiser.
Description
Technical field
The invention belongs to advertising lamp box technical fields, and in particular to a kind of advertising lamp box of automatic replacement advertisement poster.
Background technology
Advertising lamp box is a kind of for publicizing the ad distribution tool promoted, and is widely present in various public places, arrives greatly
Large board by highway, the small luminous shop on the door head of shop recruit, and current simplest advertising lamp box includes babinet
With the printing covering of outer layer, in babinet setting then use the form of show window for luminous electric light, some complicated advertising lamp boxs,
Ad content is posted in transparent cabinet, equally light source is set to be illuminated in babinet.But advertisement needs in this lamp box
Timing is replaced, and content, which is replaced, to be needed manually to open babinet, then changes new advertisement poster.
Due to can the ad content of auto-changing can more attract passerby note that the effect of publicity is more preferable, and replaces advertisement
Content also contributes to lamp box advertisement publication company and obtains more advertising and publicity costs；Therefore large-scale outdoor walls many at present are wide
It accuses, is designed including subway lamp box advertisement and bus stop board lamp box advertisement using changeable type.This design mainly includes the two
Mode, it is a kind of to be designed using roller, ad content is printed on annular advertising cloth band, advertising cloth band is arranged on above and below lamp box
Two roll in shafts, ad content is replaced by the rotation of advertising cloth band.Another kind is to use shutter rotation mode, will
Ad content is pasted onto more turnover items and takes, and by the overturning of band, splices respectively and shows two width advertisement posters.This
Two kinds of designs can realize that ad content is replaced automatically；But these modes can only at most replace the content of two width advertisement posters,
And the installation and replacement process of advertisement poster is very cumbersome.
Invention content
For the defects in the prior art, the object of the present invention is to provide a kind of advertising lamp box of automatic replacement advertisement poster,
Using the advertisement poster of Scroll in the advertising lamp box, ad content point can be carried out using the more changing device of the advertisement poster in lamp box
It is automatic to replace, and several ad contents can be prestored and replace simultaneously, advertising effect is very outstanding.
The technical scheme is that：A kind of advertising lamp box of automatic replacement advertisement poster, including containing transparent display face
Light box and advertisement poster spool, the advertising lamp box box house setting displaying picture slot change painting folder and changing reel track in advance,
Three is arranged on babinet both sides, is symmetric；The displaying picture slot is located at the top of lamp box display surface, and displaying picture front of the slot is set
It puts for the limiting slot of fixation of advertisement picture scroll axis, displaying picture slot is respectively communicated with the pre- receipts for changing painting folder by two changing reel tracks
It draws end and goes out picture end, connection changes painting folder and goes out setting on picture end and the No.1 changing reel track for showing picture slot in advance send picture device, even
It connects the pre- painting folder that changes and receives setting receipts picture device on picture end and No. two changing reel tracks for showing picture slot；The limiting of the displaying picture slot
Vertical exhibition picture track is also set up immediately below slot, exhibition picture track also includes symmetrical two parts, is arranged on light box side
Connection exhibition picture device on picture track is opened up in face.
During the work time, client by several advertisement poster spools deposit in it is pre- change in painting folder, lamp box automatically replace advertisement
During picture, the advertisement poster of current presentation is discharged by exhibition picture device first, receive picture device from No. two changing reel moving on rails to
Displaying picture groove location is put advertisement poster spool away, and be deposited into the pre- receipts picture end for changing painting folder tail portion again；At the same time, picture is sent to fill
It puts from the picture end that goes out for changing painting folder forepart in advance and obtains advertisement poster spool to be replaced, and pass through No.1 changing reel track by advertisement poster
Spool is sent on displaying picture slot, and exhibition picture device is unfolded in exhibition picture moving on rails and by new advertisement poster spool, in the saturating of lamp box
Bright display surface shows new ad content.
In the technical scheme, advertisement poster spool includes cylindric scroll holder, is set in scroll holder along cylinder axis direction
Painted scroll is rotated, one end of advertisement painting canva is fixed on rotation painted scroll, and the other end passes through the axially open on scroll holder outer wall, is fixed on
On exhibition picture cross bar outside scroll holder；The rotation painted scroll is connect with the motor in scroll holder, and exhibition picture cross bar length is more than scroll holder length, draws
Cylinder both ends setting magnetic block.It send picture device and receives and be respectively provided with the electricity to match with the magnetic block at advertisement poster spool both ends on picture device
Magnetic patch, electromagnetic block are located on the end face sent on the inside of picture device and receipts picture device.Setting opens up picture for clamping on the exhibition picture device
The clamping hand of cross bar.
Rotation painted scroll in advertisement poster spool realizes the expansion and storage of ad content by rotation, and the magnetic block at both ends can
With with send picture device and receive picture device on electromagnetism Block- matching, sending picture device and receive picture device carry out advertisement poster spool shifting
Advertisement poster spool is fixed during dynamic.During advertisement poster expansion, exhibition picture device moves to exhibition picture track upper end, then
It is clamped by clamping hand by picture cross bar is opened up, then opens up picture device and moved downward along exhibition picture track, and the motor in scroll holder is coordinated to turn
It is dynamic, you can advertisement poster content is unfolded and shown.When receiving picture, the clamping hand opened up on picture device will open up the release of picture cross bar, pass through electricity
The rotation of machine, advertisement poster are incorporated into inside scroll holder.
The pre- painting folder that changes in this programme changes in painting folder for box-like body and includes section for U-shaped picture chamber, draw the interlude of chamber in advance
To store up picture chamber, left and right ends are respectively receipts picture mouth and go out picture mouth, and setting is single into formula contraction limited block on receipts picture mouth inner wall, goes out picture mouth
It is set on inner wall and singly goes out formula and stretch limited block, drawn going out below picture mouth for intracavitary and also set up top picture device.The list is shunk into formula to be limited
Position block be two pieces of triangular prism-shaped limited blocks arranged symmetrically, limited block bottom surface be right angled triangle, a right-angle side institute of limited block
Face with into the inner wall elastic connection for drawing mouth, face where another right-angle side is located at into drawing below mouth, advertisement poster spool from
Into when drawing mouth push-in, limited block stress receding, advertisement poster spool enters after storage picture intracavitary, limited block pop-up；Singly go out formula to stretch
Contracting limited block is opposite into the formula limited block that stretches with list on position with single identical into formula limited block working method of stretching.
It changes painting folder in advance advertisement poster spool is stored and supplied, advertisement poster spool changes in advance from the pre- painting folder that changes into picture mouth entrance
Inside painting folder, from going out picture mouth and discharge and be sent at picture device to be transported.It is pre- change in painting folder it is single into formula stretch limited block and
Quantity control can be carried out to the advertisement poster spool in painting folder by singly going out the formula limited block that stretches, wherein when going out picture, by the top of picture intracavitary
Advertisement poster spool from intracavitary ejection is drawn, is convenient for advertisement poster and replaced automatically by picture device.
Preferably, the both sides setting rack of changing reel track and exhibition picture track send picture device, receives picture device and open up picture dress
It puts inside and is respectively provided with two movement gears to match with the tooth pitch of rack, movement gear is in changing reel track or exhibition picture track
Bilaterally-chucked rack, movement gear are connect with motor and its drive module.The matching of gear and rack, which allows, to be sent picture device, receives picture dress
Controllable movement can be carried out in respective tracks by putting and open up picture device.
Preferably, transparent display face side sets multiple lighting sources in the lamp box；Lighting source is used to carry out extensively
Brightening is carried out to lamp box when accusing the displaying of picture night.
A kind of advertising lamp box of automatic replacement advertisement poster provided by the invention compared with prior art, has following beneficial
Effect：
Setting advertisement poster spool, after advertisement poster is stored using electric reel mode, can reduce advertisement poster in the advertising lamp box
Volume in lamp box, convenient for multiple advertisement poster spools that prestore in lamp box simultaneously, advertisement poster spool is mounted on and changes in painting folder in advance,
Multiple advertisement poster spools in lamp box can be stored, and can carry out advertisement poster spool pop-up by changing painting folder in advance, be used for
Carry out ad content replacement.
Setting send picture device for what advertisement poster was replaced automatically in the lamp box, receives picture device, exhibition picture device and each device
The track of movement, the cooperating of these devices can realize the automatic replacement of advertisement poster in lamp box, the automatic replacement of advertisement poster
It can not only allow a lamp box that can show several advertisement pictures to attract the concern of user, and improve single advertising lamp box
Content supply volume improves the economic well-being of workers and staff of advertising company.
The advertisement poster replacement of the lamp box can not only carry out successively, recycling replacing can also be carried out, to further improve
The feeling of freshness and attention rate of user, plays the advertising effect of bigger, and advertising company is needed in several advertisements in lamp box
When appearance is replaced, without installing and arranging again each width advertisement poster successively, only storage the pre- of advertisement poster spool need to be changed painting folder
Integral replacing.
Description of the drawings
By reading the detailed description made with reference to the following drawings to specific embodiment, other feature of the invention, mesh
And advantage will become more apparent upon：
Fig. 1 is a kind of structure diagram of the advertising lamp box of automatic replacement advertisement poster of the present embodiment；
Fig. 2 is the cross-sectional view for changing painting folder in a kind of advertising lamp box of automatic replacement advertisement poster of the present embodiment in advance；
Fig. 3 is picture device to be sent to be connected with No.1 changing reel track in a kind of advertising lamp box of automatic replacement advertisement poster of the present embodiment
Schematic diagram；
Fig. 4 is the signal that exhibition picture device is connected with exhibition picture track in a kind of advertising lamp box of automatic replacement advertisement poster of the present embodiment
Figure；
Fig. 5 is the storage of advertisement poster spool and showing for unfolded state in a kind of advertising lamp box of automatic replacement advertisement poster of the present embodiment
It is intended to；
In figure label for：1st, babinet；2nd, picture slot is shown；3rd, painting folder is changed in advance；5th, picture track is opened up；6th, advertisement poster spool；11st, it is transparent
Display surface；12nd, lighting source；31st, chamber is drawn；32nd, into picture mouth；33rd, go out picture mouth；41st, No.1 changing reel track；42nd, No. two volumes
Axis replaces track；51st, picture device is opened up；61st, scroll holder；62nd, picture cross bar is opened up；311st, picture device is pushed up；321st, it is single to stretch limited block into formula；
331st, singly go out formula to stretch limited block；411st, picture device is sent；421st, picture device is received；511st, hand is clamped；611st, magnetic block；4111st, it is electric
Magnetic patch.
Specific embodiment
With reference to specific embodiment, the present invention is further explained.It should be understood that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.
As shown in Figure 1, a kind of advertising lamp box of automatic replacement advertisement poster, including the light box containing transparent display face 11
1 and advertisement poster spool 6,1 inside setting displaying picture slot 2 of advertising lamp box babinet changes painting folder 3 and changing reel track, San Zheshe in advance
It puts in 1 both sides of babinet, is symmetric；The displaying picture slot 2 is located at the top of lamp box display surface 11, and 2 front end of displaying picture slot is set
It puts for the limiting slot of fixation of advertisement picture scroll axis 6, displaying picture slot 2 is respectively communicated with by two changing reel tracks and pre- changes painting folder 3
Receipts picture end and go out picture end, connection changes painting folder 3 and goes out setting on picture end and the No.1 changing reel track 41 for showing picture slot 2 in advance send picture
Device 411, connection change setting on the receipts picture end of painting folder 3 and No. two changing reel tracks 42 for showing picture slot 2 and receive picture device 321 in advance；
Vertical exhibition picture track 5 is also set up immediately below the limiting slot of the displaying picture slot 2, exhibition picture track 5 also includes symmetrical two
Part is arranged on 1 side of babinet, exhibition picture device 51 is connected on exhibition picture track 5.
During the work time, client by several advertisement poster spools 6 deposit in it is pre- change in painting folder 3, lamp box it is automatic replace it is wide
When accusing picture, the advertisement poster of current presentation is discharged by exhibition picture device 51 first, receives picture device 421 from No. two changing reel tracks 42
On move to 2 position of displaying picture slot and put advertisement poster spool 6 away, and be deposited into the pre- receipts picture end for changing 3 tail portion of painting folder again；With this
Meanwhile picture device 411 is sent to obtain advertisement poster spool 6 to be replaced, and pass through No.1 spool from the picture end that goes out for changing 2 forepart of painting folder in advance
It replaces track 41 advertisement poster spool 6 is sent on displaying picture slot 2, the movement and will be new wide on exhibition picture track 5 of exhibition picture device 51
It accuses picture scroll axis 6 to be unfolded, new ad content is shown in the transparent display face 11 of lamp box.
In the technical scheme, as shown in Fig. 3, Fig. 4 and Fig. 5, advertisement poster spool 6 includes cylindric scroll holder 61, scroll holder
Rotation painted scroll of the setting along cylinder axis direction in 61, one end of advertisement painting canva are fixed on rotation painted scroll, and the other end passes through picture
Axially open on drum outer wall is fixed on the exhibition picture cross bar 62 outside scroll holder；The rotation painted scroll is connect with the motor in scroll holder,
It opens up 62 length of picture cross bar and is more than 61 length of scroll holder, 61 both ends of scroll holder setting magnetic block 611.It send picture device 411 and receives picture device 421
On be respectively provided with the electromagnetic block 4111 to match with the magnetic block 611 at 6 both ends of advertisement poster spool, electromagnetic block 4111, which is located at, send picture device
It 411 and receives on the end face of the inside of picture device 421.The clamping hand of picture cross bar 62 is opened up in setting for clamping on the exhibition picture device 51
511。
Rotation painted scroll in advertisement poster spool 6 realizes the expansion and storage of ad content, the magnetic block at both ends by rotation
611 can match with sending picture device 411 and receiving the electromagnetic block 4111 on picture device 421, are sending picture device 411 and are receiving picture device
Advertisement poster spool 6 is fixed in the moving process of 421 progress advertisement poster spools 6.During advertisement poster expansion, picture device is opened up
51 move to 5 upper end of exhibition picture track, are then clamped by clamping hand 511 by picture cross bar 62 is opened up, and then open up picture device 51 along exhibition picture
Track 5 moves downward, and the motor in scroll holder 61 is coordinated to rotate, you can advertisement poster content is unfolded and is shown.When receiving picture, picture is opened up
Clamping hand 511 on device 51 is discharged picture cross bar 62 is opened up, and by the rotation of motor, advertisement poster is incorporated into scroll holder 61
Portion.
As described in Figure 2, the pre- painting folder 3 that changes in this programme changes in painting folder 3 for box-like body and includes section for U-shaped picture chamber in advance
31, the interlude for drawing chamber 31 is storage picture chamber, and left and right ends are respectively to receive picture mouth 32 and go out picture mouth 33, receive and are set on 32 inner wall of picture mouth
It is single to shrink limited block 321 into formula, go out on 33 inner wall of picture mouth to set singly to go out formula to stretch limited block 331, draw in chamber 31 and go out picture mouth 33
Lower section also sets up top picture device 311.It is two pieces of triangular prism-shaped limited blocks arranged symmetrically that the list shrinks limited block 321 into formula, is limited
Position block bottom surface is right angled triangle, the face where a right-angle side of limited block and the inner wall elastic connection into picture mouth 32, another
Face where right-angle side is located at into drawing 32 lower section of mouth, and advertisement poster spool 6 is from into when drawing mouth 32 and being pushed into, and limited block stress is backward
Contracting, advertisement poster spool 6 enter after storage picture intracavitary, limited block pop-up；Singly go out the formula limited block 331 that stretches to stretch limiting into formula with single
321 working method of block is identical, opposite into the formula limited block 321 that stretches with list on position.
It is pre- to change painting folder 3 advertisement poster spool 6 is stored and supplied, advertisement poster spool 6 from it is pre- change painting folder 3 into draw mouth 32 into
Enter it is pre- change inside painting folder 3, from going out picture mouth 33 and discharge and be sent at picture device 411 to be transported.It changes in advance single into formula in painting folder 3
Flexible limited block 321 and singly go out formula stretch limited block 331 can to the progress quantity control of the advertisement poster spool 6 in painting folder, wherein
When going out picture, it is automatic to be convenient for advertisement poster from ejection in chamber 31 is drawn for advertisement poster spool 6 by the top picture device 311 in picture chamber 31
It replaces.
The both sides setting rack of changing reel track and exhibition picture track 5 send picture device 411, receives picture device 421 and opens up picture dress
It puts and two movement gears to match with the tooth pitch of rack is respectively provided with inside 51, movement gear is in changing reel track or exhibition picture rail
5 bilaterally-chucked rack of road, movement gear are connect with motor and its drive module.The matching of gear and rack allow send picture device 411,
Controllable movement can be carried out in respective tracks by receiving picture device 421 and exhibition picture device 51.
11 side of transparent display face sets multiple lighting sources 12 in lamp box 1；Lighting source 12 is used to carry out advertisement poster
Brightening is carried out to lamp box when night shows, improves advertising effect.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.
Claims (8)
1. a kind of advertising lamp box of automatic replacement advertisement poster, including the light box containing transparent display face and advertisement poster spool,
It is characterized in that：The advertising lamp box box house both sides setting displaying picture slot changes painting folder and changing reel track in advance；The exhibition
Show that picture slot is located at the top of lamp box display surface, the setting of displaying picture front of the slot shows picture for the limiting slot of fixation of advertisement picture scroll axis
Slot is respectively communicated with the pre- receipts picture end for changing painting folder by two changing reel tracks and goes out picture end, and changing painting folder goes out picture end and exhibition in advance for connection
Show that picture device is sent in setting on the No.1 changing reel track of picture slot, connection changes painting folder and receives picture end and show No. two spools of picture slot in advance
It replaces setting on track and receives picture device；Vertical exhibition picture track is set immediately below the limiting slot of the displaying picture slot, opens up picture track
Including symmetrical two parts, body side is arranged on, opens up connection exhibition picture device on picture track.
2. a kind of advertising lamp box of automatic replacement advertisement poster according to claim 1, it is characterised in that：The advertisement poster spool
Including cylindric scroll holder, the rotation painted scroll along cylinder axis direction is set, and one end of advertisement painting canva is fixed on rotation in scroll holder
On painted scroll, the other end passes through the axially open on scroll holder outer wall, is fixed on the exhibition picture cross bar outside scroll holder；It is described rotation painted scroll with
Motor connection in scroll holder, exhibition picture cross bar length are more than scroll holder length, scroll holder both ends setting magnetic block.
3. a kind of advertising lamp box of automatic replacement advertisement poster according to claim 2, it is characterised in that：It is described send picture device and
It receives and the electromagnetic block to match with the magnetic block at advertisement poster spool both ends is respectively provided on picture device, electromagnetic block, which is located at, send picture device and receipts
On end face on the inside of picture device.
4. a kind of advertising lamp box of automatic replacement advertisement poster according to claim 2, it is characterised in that：On the exhibition picture device
The clamping hand of picture cross bar is opened up in setting for clamping.
5. a kind of advertising lamp box of automatic replacement advertisement poster according to claim 1, it is characterised in that：The pre- painting folder that changes is
Box-like body changes in painting folder and includes section for U-shaped picture chamber in advance, and the interlude for drawing chamber is storage picture chamber, and left and right ends are respectively to receive picture
Mouthful and go out picture mouth, receive that setting on picture mouth inner wall is single to shrink limited block into formula, go out on picture mouth inner wall to set singly to go out formula to stretch limited block,
It draws going out below picture mouth for intracavitary and also sets up top picture device.
6. a kind of advertising lamp box of automatic replacement advertisement poster according to claim 5, it is characterised in that：The list is shunk into formula
Limited block be two pieces of triangular prism-shaped limited blocks arranged symmetrically, limited block bottom surface be right angled triangle, a right-angle side of limited block
The face at place and the inner wall elastic connection into picture mouth, the face where another right-angle side are located at into below picture mouth, advertisement poster spool
From into when drawing mouth push-in, limited block stress receding, advertisement poster spool enters after storage picture intracavitary, limited block pop-up；Singly go out formula
Flexible limited block is opposite into the formula limited block that stretches with list on position with singly identical into formula limited block working method of stretching.
7. a kind of advertising lamp box of automatic replacement advertisement poster according to claim 1, it is characterised in that：The changing reel rail
The both sides setting rack in road and exhibition picture track send and is respectively provided with two and rack inside picture device, receipts picture device and exhibition picture device
The movement gear that tooth pitch matches, movement gear changing reel track or exhibition picture track bilaterally-chucked rack, movement gear with
Motor and its drive module connection.
8. a kind of advertising lamp box of automatic replacement advertisement poster according to claim 1, it is characterised in that：It is transparent in the lamp box
Display surface side sets multiple lighting sources.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810066572.8A CN108257521B (en) | 2018-01-24 | 2018-01-24 | Automatic change advertising light boxes of poster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810066572.8A CN108257521B (en) | 2018-01-24 | 2018-01-24 | Automatic change advertising light boxes of poster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108257521A true CN108257521A (en) | 2018-07-06 |
| CN108257521B CN108257521B (en) | 2020-07-31 |
Family
ID=62741882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810066572.8A Active CN108257521B (en) | 2018-01-24 | 2018-01-24 | Automatic change advertising light boxes of poster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108257521B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110120193A (en) * | 2019-06-05 | 2019-08-13 | 广州航爵数码科技有限公司 | A kind of advertisement display |
| CN110751863A (en) * | 2019-11-02 | 2020-02-04 | 徐会友 | Intelligent teaching robot |
| CN112002267A (en) * | 2020-08-13 | 2020-11-27 | 朱秀平 | Propaganda information display device convenient to change content |
| CN112669675A (en) * | 2021-02-01 | 2021-04-16 | 焦作大学 | A spool formula intelligent teaching link plate structure for tourism management |
| CN113674646A (en) * | 2020-10-29 | 2021-11-19 | 湖南博大光电科技有限公司 | Automatic advertisement lamp house of carousel advertisement drawing |
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| CN2143919Y (en) * | 1992-12-31 | 1993-10-20 | 赵卫朝 | Chinese painting and calligraphy frame for multiple pictures |
| EP1484735A2 (en) * | 2003-06-05 | 2004-12-08 | 501413 Ontario Limited | Scrolling sign |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112002267A (en) * | 2020-08-13 | 2020-11-27 | 朱秀平 | Propaganda information display device convenient to change content |
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| CN112669675A (en) * | 2021-02-01 | 2021-04-16 | 焦作大学 | A spool formula intelligent teaching link plate structure for tourism management |
| CN112669675B (en) * | 2021-02-01 | 2022-08-19 | 焦作大学 | A spool formula intelligent teaching link plate structure for tourism management |
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| Publication number | Publication date |
|---|---|
| CN108257521B (en) | 2020-07-31 |
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